/* * Copyright © 2008 Kristian Høgsberg * Copyright © 2012-2013 Collabora, Ltd. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef HAVE_CAIRO_EGL #include #ifdef USE_CAIRO_GLESV2 #include #include #else #include #endif #include #include #include #elif !defined(ENABLE_EGL) /* platform.h defines these if EGL is enabled */ typedef void *EGLDisplay; typedef void *EGLConfig; typedef void *EGLContext; #define EGL_NO_DISPLAY ((EGLDisplay)0) #endif /* no HAVE_CAIRO_EGL */ #include #ifdef HAVE_XKBCOMMON_COMPOSE #include #endif #include #include #include #include "shared/cairo-util.h" #include "shared/helpers.h" #include "shared/xalloc.h" #include #include "xdg-shell-client-protocol.h" #include "text-cursor-position-client-protocol.h" #include "pointer-constraints-unstable-v1-client-protocol.h" #include "relative-pointer-unstable-v1-client-protocol.h" #include "shared/os-compatibility.h" #include "shared/string-helpers.h" #include "window.h" #include "viewporter-client-protocol.h" #define ZWP_RELATIVE_POINTER_MANAGER_V1_VERSION 1 #define ZWP_POINTER_CONSTRAINTS_V1_VERSION 1 #define DEFAULT_XCURSOR_SIZE 32 struct shm_pool; struct global { uint32_t name; char *interface; uint32_t version; struct wl_list link; }; struct display { struct wl_display *display; struct wl_registry *registry; struct wl_compositor *compositor; struct wl_subcompositor *subcompositor; struct wl_shm *shm; struct wl_data_device_manager *data_device_manager; struct text_cursor_position *text_cursor_position; struct xdg_wm_base *xdg_shell; struct zwp_relative_pointer_manager_v1 *relative_pointer_manager; struct zwp_pointer_constraints_v1 *pointer_constraints; EGLDisplay dpy; EGLConfig argb_config; EGLContext argb_ctx; cairo_device_t *argb_device; uint32_t serial; int display_fd; uint32_t display_fd_events; struct task display_task; int epoll_fd; struct wl_list deferred_list; int running; struct wl_list global_list; struct wl_list window_list; struct wl_list input_list; struct wl_list output_list; struct theme *theme; struct wl_cursor_theme *cursor_theme; struct wl_cursor **cursors; display_output_handler_t output_configure_handler; display_global_handler_t global_handler; display_global_handler_t global_handler_remove; void *user_data; struct xkb_context *xkb_context; /* A hack to get text extents for tooltips */ cairo_surface_t *dummy_surface; void *dummy_surface_data; int data_device_manager_version; struct wp_viewporter *viewporter; }; struct window_output { struct output *output; struct wl_list link; }; struct toysurface { /* * Prepare the surface for drawing. Ensure there is a surface * of the right size available for rendering, and return it. * dx,dy are the x,y of wl_surface.attach. * width,height are the new buffer size. * If flags has SURFACE_HINT_RESIZE set, the user is * doing continuous resizing. * Returns the Cairo surface to draw to. */ cairo_surface_t *(*prepare)(struct toysurface *base, int dx, int dy, int32_t width, int32_t height, uint32_t flags, enum wl_output_transform buffer_transform, int32_t buffer_scale); /* * Post the surface to the server, returning the server allocation * rectangle. The Cairo surface from prepare() must be destroyed * after calling this. */ void (*swap)(struct toysurface *base, enum wl_output_transform buffer_transform, int32_t buffer_scale, struct rectangle *server_allocation); /* * Make the toysurface current with the given EGL context. * Returns 0 on success, and negative on failure. */ int (*acquire)(struct toysurface *base, EGLContext ctx); /* * Release the toysurface from the EGL context, returning control * to Cairo. */ void (*release)(struct toysurface *base); /* * Destroy the toysurface, including the Cairo surface, any * backing storage, and the Wayland protocol objects. */ void (*destroy)(struct toysurface *base); }; struct surface { struct window *window; struct wl_surface *surface; struct wl_subsurface *subsurface; int synchronized; int synchronized_default; struct toysurface *toysurface; struct widget *widget; int redraw_needed; struct wl_callback *frame_cb; uint32_t last_time; struct rectangle allocation; struct rectangle server_allocation; struct wl_region *input_region; struct wl_region *opaque_region; enum window_buffer_type buffer_type; enum wl_output_transform buffer_transform; int32_t buffer_scale; cairo_surface_t *cairo_surface; struct wl_list link; struct wp_viewport *viewport; }; struct window { struct display *display; struct wl_list window_output_list; char *title; struct rectangle saved_allocation; struct rectangle min_allocation; struct rectangle pending_allocation; struct rectangle last_geometry; int x, y; int redraw_inhibited; int redraw_needed; int redraw_task_scheduled; struct task redraw_task; int resize_needed; int custom; int focused; int resizing; int fullscreen; int maximized; window_key_handler_t key_handler; window_keyboard_focus_handler_t keyboard_focus_handler; window_data_handler_t data_handler; window_drop_handler_t drop_handler; window_close_handler_t close_handler; window_fullscreen_handler_t fullscreen_handler; window_output_handler_t output_handler; window_state_changed_handler_t state_changed_handler; window_locked_pointer_motion_handler_t locked_pointer_motion_handler; struct surface *main_surface; struct xdg_surface *xdg_surface; struct xdg_toplevel *xdg_toplevel; struct xdg_popup *xdg_popup; struct window *parent; struct window *last_parent; struct window_frame *frame; /* struct surface::link, contains also main_surface */ struct wl_list subsurface_list; struct zwp_relative_pointer_v1 *relative_pointer; struct zwp_locked_pointer_v1 *locked_pointer; bool pointer_locked; locked_pointer_locked_handler_t pointer_locked_handler; locked_pointer_unlocked_handler_t pointer_unlocked_handler; confined_pointer_confined_handler_t pointer_confined_handler; confined_pointer_unconfined_handler_t pointer_unconfined_handler; struct zwp_confined_pointer_v1 *confined_pointer; struct widget *confined_widget; bool confined; void *user_data; struct wl_list link; }; struct widget { struct window *window; struct surface *surface; struct tooltip *tooltip; struct wl_list child_list; struct wl_list link; struct rectangle allocation; widget_resize_handler_t resize_handler; widget_redraw_handler_t redraw_handler; widget_enter_handler_t enter_handler; widget_leave_handler_t leave_handler; widget_motion_handler_t motion_handler; widget_button_handler_t button_handler; widget_touch_down_handler_t touch_down_handler; widget_touch_up_handler_t touch_up_handler; widget_touch_motion_handler_t touch_motion_handler; widget_touch_frame_handler_t touch_frame_handler; widget_touch_cancel_handler_t touch_cancel_handler; widget_axis_handler_t axis_handler; widget_pointer_frame_handler_t pointer_frame_handler; widget_axis_source_handler_t axis_source_handler; widget_axis_stop_handler_t axis_stop_handler; widget_axis_discrete_handler_t axis_discrete_handler; void *user_data; int opaque; int tooltip_count; int default_cursor; /* If this is set to false then no cairo surface will be * created before redrawing the surface. This is useful if the * redraw handler is going to do completely custom rendering * such as using EGL directly */ int use_cairo; int viewport_dest_width; int viewport_dest_height; }; struct touch_point { int32_t id; float x, y; struct widget *widget; struct wl_list link; }; struct input { struct display *display; struct wl_seat *seat; struct wl_pointer *pointer; struct wl_keyboard *keyboard; struct wl_touch *touch; struct wl_list touch_point_list; struct window *pointer_focus; struct window *keyboard_focus; struct window *touch_focus; struct window *locked_window; struct window *confined_window; int current_cursor; uint32_t cursor_anim_start; struct wl_callback *cursor_frame_cb; uint32_t cursor_timer_start; uint32_t cursor_anim_current; struct toytimer cursor_timer; bool cursor_timer_running; struct wl_surface *pointer_surface; uint32_t modifiers; uint32_t pointer_enter_serial; float sx, sy; struct wl_list link; struct widget *focus_widget; struct widget *grab; uint32_t grab_button; struct wl_data_device *data_device; struct data_offer *drag_offer; struct data_offer *selection_offer; uint32_t touch_grab; int32_t touch_grab_id; float drag_x, drag_y; struct window *drag_focus; uint32_t drag_enter_serial; struct { struct xkb_keymap *keymap; struct xkb_state *state; #ifdef HAVE_XKBCOMMON_COMPOSE struct xkb_compose_table *compose_table; struct xkb_compose_state *compose_state; #endif xkb_mod_mask_t control_mask; xkb_mod_mask_t alt_mask; xkb_mod_mask_t shift_mask; } xkb; int32_t repeat_rate_sec; int32_t repeat_rate_nsec; int32_t repeat_delay_sec; int32_t repeat_delay_nsec; struct toytimer repeat_timer; uint32_t repeat_sym; uint32_t repeat_key; uint32_t repeat_time; int seat_version; }; struct output { struct display *display; struct wl_output *output; uint32_t server_output_id; struct rectangle allocation; struct wl_list link; int transform; int scale; char *make; char *model; display_output_handler_t destroy_handler; void *user_data; }; struct window_frame { struct widget *widget; struct widget *child; struct frame *frame; uint32_t last_time; uint32_t did_double, double_click; int32_t last_id, double_id; }; struct menu { void *user_data; struct window *window; struct widget *widget; struct input *input; struct frame *frame; const char **entries; uint32_t time; int current; int count; int release_count; menu_func_t func; }; struct tooltip { struct widget *parent; struct widget *widget; char *entry; struct toytimer timer; float x, y; }; struct shm_pool { struct wl_shm_pool *pool; size_t size; size_t used; void *data; }; enum { CURSOR_DEFAULT = 100, CURSOR_UNSET }; static const cairo_user_data_key_t shm_surface_data_key; /* #define DEBUG */ #ifdef DEBUG static void debug_print(void *proxy, int line, const char *func, const char *fmt, ...) __attribute__ ((format (printf, 4, 5))); static void debug_print(void *proxy, int line, const char *func, const char *fmt, ...) { va_list ap; struct timeval tv; gettimeofday(&tv, NULL); fprintf(stderr, "%8ld.%03ld ", (long)tv.tv_sec & 0xffff, (long)tv.tv_usec / 1000); if (proxy) fprintf(stderr, "%s@%d ", wl_proxy_get_class(proxy), wl_proxy_get_id(proxy)); /*fprintf(stderr, __FILE__ ":%d:%s ", line, func);*/ fprintf(stderr, "%s ", func); va_start(ap, fmt); vfprintf(stderr, fmt, ap); va_end(ap); } #define DBG(fmt, ...) \ debug_print(NULL, __LINE__, __func__, fmt, ##__VA_ARGS__) #define DBG_OBJ(obj, fmt, ...) \ debug_print(obj, __LINE__, __func__, fmt, ##__VA_ARGS__) #else #define DBG(...) do {} while (0) #define DBG_OBJ(...) do {} while (0) #endif static void surface_to_buffer_size (enum wl_output_transform buffer_transform, int32_t buffer_scale, int32_t *width, int32_t *height) { int32_t tmp; switch (buffer_transform) { case WL_OUTPUT_TRANSFORM_90: case WL_OUTPUT_TRANSFORM_270: case WL_OUTPUT_TRANSFORM_FLIPPED_90: case WL_OUTPUT_TRANSFORM_FLIPPED_270: tmp = *width; *width = *height; *height = tmp; break; default: break; } *width *= buffer_scale; *height *= buffer_scale; } static void buffer_to_surface_size (enum wl_output_transform buffer_transform, int32_t buffer_scale, int32_t *width, int32_t *height) { int32_t tmp; switch (buffer_transform) { case WL_OUTPUT_TRANSFORM_90: case WL_OUTPUT_TRANSFORM_270: case WL_OUTPUT_TRANSFORM_FLIPPED_90: case WL_OUTPUT_TRANSFORM_FLIPPED_270: tmp = *width; *width = *height; *height = tmp; break; default: break; } *width /= buffer_scale; *height /= buffer_scale; } #ifdef HAVE_CAIRO_EGL struct egl_window_surface { struct toysurface base; cairo_surface_t *cairo_surface; struct display *display; struct wl_surface *surface; struct wl_egl_window *egl_window; EGLSurface egl_surface; }; static struct egl_window_surface * to_egl_window_surface(struct toysurface *base) { return container_of(base, struct egl_window_surface, base); } static cairo_surface_t * egl_window_surface_prepare(struct toysurface *base, int dx, int dy, int32_t width, int32_t height, uint32_t flags, enum wl_output_transform buffer_transform, int32_t buffer_scale) { struct egl_window_surface *surface = to_egl_window_surface(base); surface_to_buffer_size (buffer_transform, buffer_scale, &width, &height); wl_egl_window_resize(surface->egl_window, width, height, dx, dy); cairo_gl_surface_set_size(surface->cairo_surface, width, height); return cairo_surface_reference(surface->cairo_surface); } static void egl_window_surface_swap(struct toysurface *base, enum wl_output_transform buffer_transform, int32_t buffer_scale, struct rectangle *server_allocation) { struct egl_window_surface *surface = to_egl_window_surface(base); cairo_gl_surface_swapbuffers(surface->cairo_surface); wl_egl_window_get_attached_size(surface->egl_window, &server_allocation->width, &server_allocation->height); buffer_to_surface_size (buffer_transform, buffer_scale, &server_allocation->width, &server_allocation->height); } static int egl_window_surface_acquire(struct toysurface *base, EGLContext ctx) { struct egl_window_surface *surface = to_egl_window_surface(base); cairo_device_t *device; device = cairo_surface_get_device(surface->cairo_surface); if (!device) return -1; if (!ctx) { if (device == surface->display->argb_device) ctx = surface->display->argb_ctx; else assert(0); } cairo_device_flush(device); cairo_device_acquire(device); if (!eglMakeCurrent(surface->display->dpy, surface->egl_surface, surface->egl_surface, ctx)) fprintf(stderr, "failed to make surface current\n"); return 0; } static void egl_window_surface_release(struct toysurface *base) { struct egl_window_surface *surface = to_egl_window_surface(base); cairo_device_t *device; device = cairo_surface_get_device(surface->cairo_surface); if (!device) return; if (!eglMakeCurrent(surface->display->dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT)) fprintf(stderr, "failed to make context current\n"); cairo_device_release(device); } static void egl_window_surface_destroy(struct toysurface *base) { struct egl_window_surface *surface = to_egl_window_surface(base); struct display *d = surface->display; cairo_surface_destroy(surface->cairo_surface); weston_platform_destroy_egl_surface(d->dpy, surface->egl_surface); wl_egl_window_destroy(surface->egl_window); surface->surface = NULL; free(surface); } static struct toysurface * egl_window_surface_create(struct display *display, struct wl_surface *wl_surface, uint32_t flags, struct rectangle *rectangle) { struct egl_window_surface *surface; if (display->dpy == EGL_NO_DISPLAY) return NULL; surface = zalloc(sizeof *surface); if (!surface) return NULL; surface->base.prepare = egl_window_surface_prepare; surface->base.swap = egl_window_surface_swap; surface->base.acquire = egl_window_surface_acquire; surface->base.release = egl_window_surface_release; surface->base.destroy = egl_window_surface_destroy; surface->display = display; surface->surface = wl_surface; surface->egl_window = wl_egl_window_create(surface->surface, rectangle->width, rectangle->height); surface->egl_surface = weston_platform_create_egl_surface(display->dpy, display->argb_config, surface->egl_window, NULL); surface->cairo_surface = cairo_gl_surface_create_for_egl(display->argb_device, surface->egl_surface, rectangle->width, rectangle->height); return &surface->base; } #else static struct toysurface * egl_window_surface_create(struct display *display, struct wl_surface *wl_surface, uint32_t flags, struct rectangle *rectangle) { return NULL; } #endif struct shm_surface_data { struct wl_buffer *buffer; struct shm_pool *pool; }; struct wl_buffer * display_get_buffer_for_surface(struct display *display, cairo_surface_t *surface) { struct shm_surface_data *data; data = cairo_surface_get_user_data(surface, &shm_surface_data_key); return data->buffer; } static void shm_pool_destroy(struct shm_pool *pool); static void shm_surface_data_destroy(void *p) { struct shm_surface_data *data = p; wl_buffer_destroy(data->buffer); if (data->pool) shm_pool_destroy(data->pool); free(data); } static struct wl_shm_pool * make_shm_pool(struct display *display, int size, void **data) { struct wl_shm_pool *pool; int fd; fd = os_create_anonymous_file(size); if (fd < 0) { fprintf(stderr, "creating a buffer file for %d B failed: %s\n", size, strerror(errno)); return NULL; } *data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); if (*data == MAP_FAILED) { fprintf(stderr, "mmap failed: %s\n", strerror(errno)); close(fd); return NULL; } pool = wl_shm_create_pool(display->shm, fd, size); close(fd); return pool; } static struct shm_pool * shm_pool_create(struct display *display, size_t size) { struct shm_pool *pool = malloc(sizeof *pool); if (!pool) return NULL; pool->pool = make_shm_pool(display, size, &pool->data); if (!pool->pool) { free(pool); return NULL; } pool->size = size; pool->used = 0; return pool; } static void * shm_pool_allocate(struct shm_pool *pool, size_t size, int *offset) { if (pool->used + size > pool->size) return NULL; *offset = pool->used; pool->used += size; return (char *) pool->data + *offset; } /* destroy the pool. this does not unmap the memory though */ static void shm_pool_destroy(struct shm_pool *pool) { munmap(pool->data, pool->size); wl_shm_pool_destroy(pool->pool); free(pool); } /* Start allocating from the beginning of the pool again */ static void shm_pool_reset(struct shm_pool *pool) { pool->used = 0; } static int data_length_for_shm_surface(struct rectangle *rect) { int stride; stride = cairo_format_stride_for_width (CAIRO_FORMAT_ARGB32, rect->width); return stride * rect->height; } static cairo_surface_t * display_create_shm_surface_from_pool(struct display *display, struct rectangle *rectangle, uint32_t flags, struct shm_pool *pool) { struct shm_surface_data *data; uint32_t format; cairo_surface_t *surface; int stride, length, offset; void *map; data = malloc(sizeof *data); if (data == NULL) return NULL; stride = cairo_format_stride_for_width (CAIRO_FORMAT_ARGB32, rectangle->width); length = stride * rectangle->height; data->pool = NULL; map = shm_pool_allocate(pool, length, &offset); if (!map) { free(data); return NULL; } surface = cairo_image_surface_create_for_data (map, CAIRO_FORMAT_ARGB32, rectangle->width, rectangle->height, stride); cairo_surface_set_user_data(surface, &shm_surface_data_key, data, shm_surface_data_destroy); if (flags & SURFACE_OPAQUE) format = WL_SHM_FORMAT_XRGB8888; else format = WL_SHM_FORMAT_ARGB8888; data->buffer = wl_shm_pool_create_buffer(pool->pool, offset, rectangle->width, rectangle->height, stride, format); return surface; } static cairo_surface_t * display_create_shm_surface(struct display *display, struct rectangle *rectangle, uint32_t flags, struct shm_pool *alternate_pool, struct shm_surface_data **data_ret) { struct shm_surface_data *data; struct shm_pool *pool; cairo_surface_t *surface; if (alternate_pool) { shm_pool_reset(alternate_pool); surface = display_create_shm_surface_from_pool(display, rectangle, flags, alternate_pool); if (surface) { data = cairo_surface_get_user_data(surface, &shm_surface_data_key); goto out; } } pool = shm_pool_create(display, data_length_for_shm_surface(rectangle)); if (!pool) return NULL; surface = display_create_shm_surface_from_pool(display, rectangle, flags, pool); if (!surface) { shm_pool_destroy(pool); return NULL; } /* make sure we destroy the pool when the surface is destroyed */ data = cairo_surface_get_user_data(surface, &shm_surface_data_key); data->pool = pool; out: if (data_ret) *data_ret = data; return surface; } static int check_size(struct rectangle *rect) { if (rect->width && rect->height) return 0; fprintf(stderr, "tried to create surface of " "width: %d, height: %d\n", rect->width, rect->height); return -1; } cairo_surface_t * display_create_surface(struct display *display, struct wl_surface *surface, struct rectangle *rectangle, uint32_t flags) { if (check_size(rectangle) < 0) return NULL; assert(flags & SURFACE_SHM); return display_create_shm_surface(display, rectangle, flags, NULL, NULL); } struct shm_surface_leaf { cairo_surface_t *cairo_surface; /* 'data' is automatically destroyed, when 'cairo_surface' is */ struct shm_surface_data *data; struct shm_pool *resize_pool; int busy; }; static void shm_surface_leaf_release(struct shm_surface_leaf *leaf) { if (leaf->cairo_surface) cairo_surface_destroy(leaf->cairo_surface); /* leaf->data already destroyed via cairo private */ if (leaf->resize_pool) shm_pool_destroy(leaf->resize_pool); memset(leaf, 0, sizeof *leaf); } #define MAX_LEAVES 3 struct shm_surface { struct toysurface base; struct display *display; struct wl_surface *surface; uint32_t flags; int dx, dy; struct shm_surface_leaf leaf[MAX_LEAVES]; struct shm_surface_leaf *current; }; static struct shm_surface * to_shm_surface(struct toysurface *base) { return container_of(base, struct shm_surface, base); } static void shm_surface_buffer_state_debug(struct shm_surface *surface, const char *msg) { #ifdef DEBUG struct shm_surface_leaf *leaf; char bufs[MAX_LEAVES + 1]; int i; for (i = 0; i < MAX_LEAVES; i++) { leaf = &surface->leaf[i]; if (leaf->busy) bufs[i] = 'b'; else if (leaf->cairo_surface) bufs[i] = 'a'; else bufs[i] = ' '; } bufs[MAX_LEAVES] = '\0'; DBG_OBJ(surface->surface, "%s, leaves [%s]\n", msg, bufs); #endif } static void shm_surface_buffer_release(void *data, struct wl_buffer *buffer) { struct shm_surface *surface = data; struct shm_surface_leaf *leaf; int i; int free_found; shm_surface_buffer_state_debug(surface, "buffer_release before"); for (i = 0; i < MAX_LEAVES; i++) { leaf = &surface->leaf[i]; if (leaf->data && leaf->data->buffer == buffer) { leaf->busy = 0; break; } } assert(i < MAX_LEAVES && "unknown buffer released"); /* Leave one free leaf with storage, release others */ free_found = 0; for (i = 0; i < MAX_LEAVES; i++) { leaf = &surface->leaf[i]; if (!leaf->cairo_surface || leaf->busy) continue; if (!free_found) free_found = 1; else shm_surface_leaf_release(leaf); } shm_surface_buffer_state_debug(surface, "buffer_release after"); } static const struct wl_buffer_listener shm_surface_buffer_listener = { shm_surface_buffer_release }; static cairo_surface_t * shm_surface_prepare(struct toysurface *base, int dx, int dy, int32_t width, int32_t height, uint32_t flags, enum wl_output_transform buffer_transform, int32_t buffer_scale) { int resize_hint = !!(flags & SURFACE_HINT_RESIZE); struct shm_surface *surface = to_shm_surface(base); struct rectangle rect = { 0}; struct shm_surface_leaf *leaf = NULL; int i; surface->dx = dx; surface->dy = dy; /* pick a free buffer, preferably one that already has storage */ for (i = 0; i < MAX_LEAVES; i++) { if (surface->leaf[i].busy) continue; if (!leaf || surface->leaf[i].cairo_surface) leaf = &surface->leaf[i]; } DBG_OBJ(surface->surface, "pick leaf %d\n", (int)(leaf - &surface->leaf[0])); if (!leaf) { fprintf(stderr, "%s: all buffers are held by the server.\n", __func__); exit(1); return NULL; } if (!resize_hint && leaf->resize_pool) { cairo_surface_destroy(leaf->cairo_surface); leaf->cairo_surface = NULL; shm_pool_destroy(leaf->resize_pool); leaf->resize_pool = NULL; } surface_to_buffer_size (buffer_transform, buffer_scale, &width, &height); if (leaf->cairo_surface && cairo_image_surface_get_width(leaf->cairo_surface) == width && cairo_image_surface_get_height(leaf->cairo_surface) == height) goto out; if (leaf->cairo_surface) cairo_surface_destroy(leaf->cairo_surface); #ifdef USE_RESIZE_POOL if (resize_hint && !leaf->resize_pool) { /* Create a big pool to allocate from, while continuously * resizing. Mmapping a new pool in the server * is relatively expensive, so reusing a pool performs * better, but may temporarily reserve unneeded memory. */ /* We should probably base this number on the output size. */ leaf->resize_pool = shm_pool_create(surface->display, 6 * 1024 * 1024); } #endif rect.width = width; rect.height = height; leaf->cairo_surface = display_create_shm_surface(surface->display, &rect, surface->flags, leaf->resize_pool, &leaf->data); if (!leaf->cairo_surface) return NULL; wl_buffer_add_listener(leaf->data->buffer, &shm_surface_buffer_listener, surface); out: surface->current = leaf; return cairo_surface_reference(leaf->cairo_surface); } static void shm_surface_swap(struct toysurface *base, enum wl_output_transform buffer_transform, int32_t buffer_scale, struct rectangle *server_allocation) { struct shm_surface *surface = to_shm_surface(base); struct shm_surface_leaf *leaf = surface->current; server_allocation->width = cairo_image_surface_get_width(leaf->cairo_surface); server_allocation->height = cairo_image_surface_get_height(leaf->cairo_surface); buffer_to_surface_size (buffer_transform, buffer_scale, &server_allocation->width, &server_allocation->height); wl_surface_attach(surface->surface, leaf->data->buffer, surface->dx, surface->dy); wl_surface_damage(surface->surface, 0, 0, server_allocation->width, server_allocation->height); wl_surface_commit(surface->surface); DBG_OBJ(surface->surface, "leaf %d busy\n", (int)(leaf - &surface->leaf[0])); leaf->busy = 1; surface->current = NULL; } static int shm_surface_acquire(struct toysurface *base, EGLContext ctx) { return -1; } static void shm_surface_release(struct toysurface *base) { } static void shm_surface_destroy(struct toysurface *base) { struct shm_surface *surface = to_shm_surface(base); int i; for (i = 0; i < MAX_LEAVES; i++) shm_surface_leaf_release(&surface->leaf[i]); free(surface); } static struct toysurface * shm_surface_create(struct display *display, struct wl_surface *wl_surface, uint32_t flags, struct rectangle *rectangle) { struct shm_surface *surface; DBG_OBJ(wl_surface, "\n"); surface = xzalloc(sizeof *surface); surface->base.prepare = shm_surface_prepare; surface->base.swap = shm_surface_swap; surface->base.acquire = shm_surface_acquire; surface->base.release = shm_surface_release; surface->base.destroy = shm_surface_destroy; surface->display = display; surface->surface = wl_surface; surface->flags = flags; return &surface->base; } /* * The following correspondences between file names and cursors was copied * from: https://bugs.kde.org/attachment.cgi?id=67313 */ static const char *bottom_left_corners[] = { "bottom_left_corner", "sw-resize", "size_bdiag" }; static const char *bottom_right_corners[] = { "bottom_right_corner", "se-resize", "size_fdiag" }; static const char *bottom_sides[] = { "bottom_side", "s-resize", "size_ver" }; static const char *grabbings[] = { "grabbing", "closedhand", "208530c400c041818281048008011002" }; static const char *left_ptrs[] = { "left_ptr", "default", "top_left_arrow", "left-arrow" }; static const char *left_sides[] = { "left_side", "w-resize", "size_hor" }; static const char *right_sides[] = { "right_side", "e-resize", "size_hor" }; static const char *top_left_corners[] = { "top_left_corner", "nw-resize", "size_fdiag" }; static const char *top_right_corners[] = { "top_right_corner", "ne-resize", "size_bdiag" }; static const char *top_sides[] = { "top_side", "n-resize", "size_ver" }; static const char *xterms[] = { "xterm", "ibeam", "text" }; static const char *hand1s[] = { "hand1", "pointer", "pointing_hand", "e29285e634086352946a0e7090d73106" }; static const char *watches[] = { "watch", "wait", "0426c94ea35c87780ff01dc239897213" }; static const char *move_draggings[] = { "dnd-move" }; static const char *copy_draggings[] = { "dnd-copy" }; static const char *forbidden_draggings[] = { "dnd-none", "dnd-no-drop" }; struct cursor_alternatives { const char **names; size_t count; }; static const struct cursor_alternatives cursors[] = { {bottom_left_corners, ARRAY_LENGTH(bottom_left_corners)}, {bottom_right_corners, ARRAY_LENGTH(bottom_right_corners)}, {bottom_sides, ARRAY_LENGTH(bottom_sides)}, {grabbings, ARRAY_LENGTH(grabbings)}, {left_ptrs, ARRAY_LENGTH(left_ptrs)}, {left_sides, ARRAY_LENGTH(left_sides)}, {right_sides, ARRAY_LENGTH(right_sides)}, {top_left_corners, ARRAY_LENGTH(top_left_corners)}, {top_right_corners, ARRAY_LENGTH(top_right_corners)}, {top_sides, ARRAY_LENGTH(top_sides)}, {xterms, ARRAY_LENGTH(xterms)}, {hand1s, ARRAY_LENGTH(hand1s)}, {watches, ARRAY_LENGTH(watches)}, {move_draggings, ARRAY_LENGTH(move_draggings)}, {copy_draggings, ARRAY_LENGTH(copy_draggings)}, {forbidden_draggings, ARRAY_LENGTH(forbidden_draggings)}, }; static void create_cursors(struct display *display) { const char *config_file; struct weston_config *config; struct weston_config_section *s; int size = DEFAULT_XCURSOR_SIZE; char *theme = NULL, *size_str; unsigned int i, j; struct wl_cursor *cursor; theme = getenv("XCURSOR_THEME"); size_str = getenv("XCURSOR_SIZE"); if (size_str) { safe_strtoint(size_str, &size); if (size <= 0) size = DEFAULT_XCURSOR_SIZE; } config_file = weston_config_get_name_from_env(); config = weston_config_parse(config_file); s = weston_config_get_section(config, "shell", NULL, NULL); weston_config_section_get_string(s, "cursor-theme", &theme, theme); weston_config_section_get_int(s, "cursor-size", &size, size); weston_config_destroy(config); display->cursor_theme = wl_cursor_theme_load(theme, size, display->shm); if (!display->cursor_theme) { fprintf(stderr, "could not load theme '%s'\n", theme); return; } free(theme); display->cursors = xmalloc(ARRAY_LENGTH(cursors) * sizeof display->cursors[0]); for (i = 0; i < ARRAY_LENGTH(cursors); i++) { cursor = NULL; for (j = 0; !cursor && j < cursors[i].count; ++j) cursor = wl_cursor_theme_get_cursor( display->cursor_theme, cursors[i].names[j]); if (!cursor) fprintf(stderr, "could not load cursor '%s'\n", cursors[i].names[0]); display->cursors[i] = cursor; } } static void destroy_cursors(struct display *display) { if (display->cursor_theme) wl_cursor_theme_destroy(display->cursor_theme); free(display->cursors); } struct wl_cursor_image * display_get_pointer_image(struct display *display, int pointer) { struct wl_cursor *cursor = display->cursors[pointer]; return cursor ? cursor->images[0] : NULL; } static void surface_flush(struct surface *surface) { struct widget *widget = surface->widget; if (!surface->cairo_surface) return; if (surface->opaque_region) { wl_surface_set_opaque_region(surface->surface, surface->opaque_region); wl_region_destroy(surface->opaque_region); surface->opaque_region = NULL; } if (surface->input_region) { wl_surface_set_input_region(surface->surface, surface->input_region); wl_region_destroy(surface->input_region); surface->input_region = NULL; } if (surface->viewport) { wp_viewport_set_destination(surface->viewport, widget->viewport_dest_width, widget->viewport_dest_height); } surface->toysurface->swap(surface->toysurface, surface->buffer_transform, surface->buffer_scale, &surface->server_allocation); cairo_surface_destroy(surface->cairo_surface); surface->cairo_surface = NULL; } int window_has_focus(struct window *window) { return window->focused; } static void window_close(struct window *window) { if (window->close_handler) window->close_handler(window->user_data); else display_exit(window->display); } struct display * window_get_display(struct window *window) { return window->display; } static void surface_create_surface(struct surface *surface, uint32_t flags) { struct display *display = surface->window->display; struct rectangle allocation = surface->allocation; if (!surface->toysurface && display->dpy && surface->buffer_type == WINDOW_BUFFER_TYPE_EGL_WINDOW) { surface->toysurface = egl_window_surface_create(display, surface->surface, flags, &allocation); } if (!surface->toysurface) surface->toysurface = shm_surface_create(display, surface->surface, flags, &allocation); surface->cairo_surface = surface->toysurface->prepare( surface->toysurface, 0, 0, allocation.width, allocation.height, flags, surface->buffer_transform, surface->buffer_scale); } static void window_create_main_surface(struct window *window) { struct surface *surface = window->main_surface; uint32_t flags = 0; if (window->resizing) flags |= SURFACE_HINT_RESIZE; surface_create_surface(surface, flags); } int window_get_buffer_transform(struct window *window) { return window->main_surface->buffer_transform; } void window_set_buffer_transform(struct window *window, enum wl_output_transform transform) { window->main_surface->buffer_transform = transform; wl_surface_set_buffer_transform(window->main_surface->surface, transform); } void window_set_buffer_scale(struct window *window, int32_t scale) { window->main_surface->buffer_scale = scale; wl_surface_set_buffer_scale(window->main_surface->surface, scale); } uint32_t window_get_buffer_scale(struct window *window) { return window->main_surface->buffer_scale; } uint32_t window_get_output_scale(struct window *window) { struct window_output *window_output; struct window_output *window_output_tmp; int scale = 1; wl_list_for_each_safe(window_output, window_output_tmp, &window->window_output_list, link) { if (window_output->output->scale > scale) scale = window_output->output->scale; } return scale; } static void window_frame_destroy(struct window_frame *frame); static void surface_destroy(struct surface *surface) { if (surface->frame_cb) wl_callback_destroy(surface->frame_cb); if (surface->input_region) wl_region_destroy(surface->input_region); if (surface->opaque_region) wl_region_destroy(surface->opaque_region); if (surface->subsurface) wl_subsurface_destroy(surface->subsurface); wl_surface_destroy(surface->surface); if (surface->toysurface) surface->toysurface->destroy(surface->toysurface); wl_list_remove(&surface->link); free(surface); } void window_destroy(struct window *window) { struct display *display = window->display; struct input *input; struct window_output *window_output; struct window_output *window_output_tmp; wl_list_remove(&window->redraw_task.link); wl_list_for_each(input, &display->input_list, link) { if (input->touch_focus == window) { struct touch_point *tp, *tmp; wl_list_for_each_safe(tp, tmp, &input->touch_point_list, link) { wl_list_remove(&tp->link); free(tp); } input->touch_focus = NULL; } if (input->pointer_focus == window) input->pointer_focus = NULL; if (input->keyboard_focus == window) input->keyboard_focus = NULL; if (input->locked_window == window) input->locked_window = NULL; if (input->confined_window == window) input->confined_window = NULL; if (input->focus_widget && input->focus_widget->window == window) input->focus_widget = NULL; } wl_list_for_each_safe(window_output, window_output_tmp, &window->window_output_list, link) { free (window_output); } if (window->frame) window_frame_destroy(window->frame); if (window->xdg_toplevel) xdg_toplevel_destroy(window->xdg_toplevel); if (window->xdg_popup) xdg_popup_destroy(window->xdg_popup); if (window->xdg_surface) xdg_surface_destroy(window->xdg_surface); surface_destroy(window->main_surface); wl_list_remove(&window->link); free(window->title); free(window); } static struct widget * widget_find_widget(struct widget *widget, int32_t x, int32_t y) { struct widget *child, *target; int alloc_x, alloc_y, width, height; double scale; wl_list_for_each(child, &widget->child_list, link) { target = widget_find_widget(child, x, y); if (target) return target; } alloc_x = widget->allocation.x; alloc_y = widget->allocation.y; width = widget->allocation.width; height = widget->allocation.height; if (widget->viewport_dest_width != -1 && widget->viewport_dest_height != -1) { scale = widget->viewport_dest_width / (double) width; alloc_x = alloc_x * scale; width = widget->viewport_dest_width; scale = widget->viewport_dest_height / (double) height; alloc_y = alloc_y * scale; height = widget->viewport_dest_height; } if (alloc_x <= x && x < alloc_x + width && alloc_y <= y && y < alloc_y + height) { return widget; } return NULL; } static struct widget * window_find_widget(struct window *window, int32_t x, int32_t y) { struct surface *surface; struct widget *widget; wl_list_for_each(surface, &window->subsurface_list, link) { widget = widget_find_widget(surface->widget, x, y); if (widget) return widget; } return NULL; } static struct widget * widget_create(struct window *window, struct surface *surface, void *data) { struct widget *widget; widget = xzalloc(sizeof *widget); widget->window = window; widget->surface = surface; widget->user_data = data; widget->allocation = surface->allocation; wl_list_init(&widget->child_list); widget->opaque = 0; widget->tooltip = NULL; widget->tooltip_count = 0; widget->default_cursor = CURSOR_LEFT_PTR; widget->use_cairo = 1; widget->viewport_dest_width = -1; widget->viewport_dest_height = -1; return widget; } struct widget * window_add_widget(struct window *window, void *data) { struct widget *widget; widget = widget_create(window, window->main_surface, data); wl_list_init(&widget->link); window->main_surface->widget = widget; return widget; } struct widget * widget_add_widget(struct widget *parent, void *data) { struct widget *widget; widget = widget_create(parent->window, parent->surface, data); wl_list_insert(parent->child_list.prev, &widget->link); return widget; } void widget_destroy(struct widget *widget) { struct display *display = widget->window->display; struct surface *surface = widget->surface; struct input *input; /* Destroy the sub-surface along with the root widget */ if (surface->widget == widget && surface->subsurface) surface_destroy(widget->surface); if (widget->tooltip) widget_destroy_tooltip(widget); wl_list_for_each(input, &display->input_list, link) { if (input->focus_widget == widget) input->focus_widget = NULL; } wl_list_remove(&widget->link); free(widget); } void widget_set_default_cursor(struct widget *widget, int cursor) { widget->default_cursor = cursor; } void widget_get_allocation(struct widget *widget, struct rectangle *allocation) { *allocation = widget->allocation; } void widget_set_size(struct widget *widget, int32_t width, int32_t height) { widget->allocation.width = width; widget->allocation.height = height; } void widget_set_allocation(struct widget *widget, int32_t x, int32_t y, int32_t width, int32_t height) { widget->allocation.x = x; widget->allocation.y = y; widget_set_size(widget, width, height); } void widget_set_transparent(struct widget *widget, int transparent) { widget->opaque = !transparent; } void * widget_get_user_data(struct widget *widget) { return widget->user_data; } static cairo_surface_t * widget_get_cairo_surface(struct widget *widget) { struct surface *surface = widget->surface; struct window *window = widget->window; assert(widget->use_cairo); if (!surface->cairo_surface) { if (surface == window->main_surface) window_create_main_surface(window); else surface_create_surface(surface, 0); } return surface->cairo_surface; } static void widget_cairo_update_transform(struct widget *widget, cairo_t *cr) { struct surface *surface = widget->surface; double angle; cairo_matrix_t m; enum wl_output_transform transform; int surface_width, surface_height; int translate_x, translate_y; int32_t scale; surface_width = surface->allocation.width; surface_height = surface->allocation.height; transform = surface->buffer_transform; scale = surface->buffer_scale; switch (transform) { case WL_OUTPUT_TRANSFORM_FLIPPED: case WL_OUTPUT_TRANSFORM_FLIPPED_90: case WL_OUTPUT_TRANSFORM_FLIPPED_180: case WL_OUTPUT_TRANSFORM_FLIPPED_270: cairo_matrix_init(&m, -1, 0, 0, 1, 0, 0); break; default: cairo_matrix_init_identity(&m); break; } switch (transform) { case WL_OUTPUT_TRANSFORM_NORMAL: default: angle = 0; translate_x = 0; translate_y = 0; break; case WL_OUTPUT_TRANSFORM_FLIPPED: angle = 0; translate_x = surface_width; translate_y = 0; break; case WL_OUTPUT_TRANSFORM_90: angle = M_PI + M_PI_2; translate_x = 0; translate_y = surface_width; break; case WL_OUTPUT_TRANSFORM_FLIPPED_90: angle = M_PI + M_PI_2; translate_x = 0; translate_y = 0; break; case WL_OUTPUT_TRANSFORM_180: angle = M_PI; translate_x = surface_width; translate_y = surface_height; break; case WL_OUTPUT_TRANSFORM_FLIPPED_180: angle = M_PI; translate_x = 0; translate_y = surface_height; break; case WL_OUTPUT_TRANSFORM_270: angle = M_PI_2; translate_x = surface_height; translate_y = 0; break; case WL_OUTPUT_TRANSFORM_FLIPPED_270: angle = M_PI_2; translate_x = surface_height; translate_y = surface_width; break; } cairo_scale(cr, scale, scale); cairo_translate(cr, translate_x, translate_y); cairo_rotate(cr, angle); cairo_transform(cr, &m); } cairo_t * widget_cairo_create(struct widget *widget) { struct surface *surface = widget->surface; cairo_surface_t *cairo_surface; cairo_t *cr; cairo_surface = widget_get_cairo_surface(widget); cr = cairo_create(cairo_surface); widget_cairo_update_transform(widget, cr); cairo_translate(cr, -surface->allocation.x, -surface->allocation.y); return cr; } struct wl_surface * widget_get_wl_surface(struct widget *widget) { return widget->surface->surface; } struct wl_subsurface * widget_get_wl_subsurface(struct widget *widget) { return widget->surface->subsurface; } uint32_t widget_get_last_time(struct widget *widget) { return widget->surface->last_time; } void widget_input_region_add(struct widget *widget, const struct rectangle *rect) { struct wl_compositor *comp = widget->window->display->compositor; struct surface *surface = widget->surface; if (!surface->input_region) surface->input_region = wl_compositor_create_region(comp); if (rect) { wl_region_add(surface->input_region, rect->x, rect->y, rect->width, rect->height); } } void widget_set_resize_handler(struct widget *widget, widget_resize_handler_t handler) { widget->resize_handler = handler; } void widget_set_redraw_handler(struct widget *widget, widget_redraw_handler_t handler) { widget->redraw_handler = handler; } void widget_set_enter_handler(struct widget *widget, widget_enter_handler_t handler) { widget->enter_handler = handler; } void widget_set_leave_handler(struct widget *widget, widget_leave_handler_t handler) { widget->leave_handler = handler; } void widget_set_motion_handler(struct widget *widget, widget_motion_handler_t handler) { widget->motion_handler = handler; } void widget_set_button_handler(struct widget *widget, widget_button_handler_t handler) { widget->button_handler = handler; } void widget_set_touch_up_handler(struct widget *widget, widget_touch_up_handler_t handler) { widget->touch_up_handler = handler; } void widget_set_touch_down_handler(struct widget *widget, widget_touch_down_handler_t handler) { widget->touch_down_handler = handler; } void widget_set_touch_motion_handler(struct widget *widget, widget_touch_motion_handler_t handler) { widget->touch_motion_handler = handler; } void widget_set_touch_frame_handler(struct widget *widget, widget_touch_frame_handler_t handler) { widget->touch_frame_handler = handler; } void widget_set_touch_cancel_handler(struct widget *widget, widget_touch_cancel_handler_t handler) { widget->touch_cancel_handler = handler; } void widget_set_axis_handler(struct widget *widget, widget_axis_handler_t handler) { widget->axis_handler = handler; } void widget_set_pointer_frame_handler(struct widget *widget, widget_pointer_frame_handler_t handler) { widget->pointer_frame_handler = handler; } void widget_set_axis_handlers(struct widget *widget, widget_axis_handler_t axis_handler, widget_axis_source_handler_t axis_source_handler, widget_axis_stop_handler_t axis_stop_handler, widget_axis_discrete_handler_t axis_discrete_handler) { widget->axis_handler = axis_handler; widget->axis_source_handler = axis_source_handler; widget->axis_stop_handler = axis_stop_handler; widget->axis_discrete_handler = axis_discrete_handler; } static void window_schedule_redraw_task(struct window *window); void widget_schedule_redraw(struct widget *widget) { DBG_OBJ(widget->surface->surface, "widget %p\n", widget); widget->surface->redraw_needed = 1; window_schedule_redraw_task(widget->window); } void widget_set_use_cairo(struct widget *widget, int use_cairo) { widget->use_cairo = use_cairo; } int widget_set_viewport_destination(struct widget *widget, int width, int height) { struct window *window = widget->window; struct display *display = window->display; struct surface *surface = widget->surface; if (!display->viewporter) return -1; if (width == -1 && height == -1) { if (surface->viewport) { wp_viewport_destroy(surface->viewport); surface->viewport = NULL; } widget->viewport_dest_width = -1; widget->viewport_dest_height = -1; return 0; } if (!surface->viewport) { surface->viewport = wp_viewporter_get_viewport(display->viewporter, surface->surface); if (!surface->viewport) return -1; } widget->viewport_dest_width = width; widget->viewport_dest_height = height; return 0; } cairo_surface_t * window_get_surface(struct window *window) { cairo_surface_t *cairo_surface; cairo_surface = widget_get_cairo_surface(window->main_surface->widget); return cairo_surface_reference(cairo_surface); } struct wl_surface * window_get_wl_surface(struct window *window) { return window->main_surface->surface; } static void tooltip_redraw_handler(struct widget *widget, void *data) { cairo_t *cr; const int32_t r = 3; struct tooltip *tooltip = data; int32_t width, height; cr = widget_cairo_create(widget); cairo_translate(cr, widget->allocation.x, widget->allocation.y); cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0); cairo_paint(cr); width = widget->allocation.width; height = widget->allocation.height; rounded_rect(cr, 0, 0, width, height, r); cairo_set_operator(cr, CAIRO_OPERATOR_OVER); cairo_set_source_rgba(cr, 0.0, 0.0, 0.4, 0.8); cairo_fill(cr); cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 0.85); cairo_move_to(cr, 10, 17); cairo_set_font_size(cr, 14); cairo_show_text(cr, tooltip->entry); cairo_destroy(cr); } static cairo_text_extents_t get_text_extents(struct display *display, struct tooltip *tooltip) { cairo_t *cr; cairo_text_extents_t extents; /* Use the dummy_surface because the tooltip's surface was not * created yet, and parent does not have a valid surface * outside repaint, either. */ cr = cairo_create(display->dummy_surface); cairo_set_font_size(cr, 14); cairo_text_extents(cr, tooltip->entry, &extents); cairo_destroy(cr); return extents; } static int window_create_tooltip(struct tooltip *tooltip) { struct widget *parent = tooltip->parent; struct display *display = parent->window->display; const int offset_y = 27; const int margin = 3; cairo_text_extents_t extents; if (tooltip->widget) return 0; tooltip->widget = window_add_subsurface(parent->window, tooltip, SUBSURFACE_DESYNCHRONIZED); extents = get_text_extents(display, tooltip); widget_set_redraw_handler(tooltip->widget, tooltip_redraw_handler); widget_set_allocation(tooltip->widget, tooltip->x, tooltip->y + offset_y, extents.width + 20, 20 + margin * 2); return 0; } void widget_destroy_tooltip(struct widget *parent) { struct tooltip *tooltip = parent->tooltip; parent->tooltip_count = 0; if (!tooltip) return; if (tooltip->widget) { widget_destroy(tooltip->widget); tooltip->widget = NULL; } toytimer_fini(&tooltip->timer); free(tooltip->entry); free(tooltip); parent->tooltip = NULL; } static void tooltip_func(struct toytimer *tt) { struct tooltip *tooltip = container_of(tt, struct tooltip, timer); window_create_tooltip(tooltip); } #define TOOLTIP_TIMEOUT 500 static int tooltip_timer_reset(struct tooltip *tooltip) { toytimer_arm_once_usec(&tooltip->timer, TOOLTIP_TIMEOUT * 1000); return 0; } int widget_set_tooltip(struct widget *parent, char *entry, float x, float y) { struct tooltip *tooltip = parent->tooltip; parent->tooltip_count++; if (tooltip) { tooltip->x = x; tooltip->y = y; tooltip_timer_reset(tooltip); return 0; } /* the handler might be triggered too fast via input device motion, so * we need this check here to make sure tooltip is fully initialized */ if (parent->tooltip_count > 1) return 0; tooltip = malloc(sizeof *tooltip); if (!tooltip) return -1; parent->tooltip = tooltip; tooltip->parent = parent; tooltip->widget = NULL; tooltip->x = x; tooltip->y = y; tooltip->entry = strdup(entry); toytimer_init(&tooltip->timer, CLOCK_MONOTONIC, parent->window->display, tooltip_func); tooltip_timer_reset(tooltip); return 0; } static void frame_resize_handler(struct widget *widget, int32_t width, int32_t height, void *data) { struct window_frame *frame = data; struct widget *child = frame->child; struct rectangle interior; struct rectangle input; struct rectangle opaque; if (widget->window->fullscreen) { interior.x = 0; interior.y = 0; interior.width = width; interior.height = height; } else { frame_resize(frame->frame, width, height); frame_interior(frame->frame, &interior.x, &interior.y, &interior.width, &interior.height); } widget_set_allocation(child, interior.x, interior.y, interior.width, interior.height); if (child->resize_handler) { child->resize_handler(child, interior.width, interior.height, child->user_data); if (widget->window->fullscreen) { width = child->allocation.width; height = child->allocation.height; } else { frame_resize_inside(frame->frame, child->allocation.width, child->allocation.height); width = frame_width(frame->frame); height = frame_height(frame->frame); } } widget_set_allocation(widget, 0, 0, width, height); widget->surface->input_region = wl_compositor_create_region(widget->window->display->compositor); if (!widget->window->fullscreen) { frame_input_rect(frame->frame, &input.x, &input.y, &input.width, &input.height); wl_region_add(widget->surface->input_region, input.x, input.y, input.width, input.height); } else { wl_region_add(widget->surface->input_region, 0, 0, width, height); } widget_set_allocation(widget, 0, 0, width, height); if (child->opaque) { if (!widget->window->fullscreen) { frame_opaque_rect(frame->frame, &opaque.x, &opaque.y, &opaque.width, &opaque.height); wl_region_add(widget->surface->opaque_region, opaque.x, opaque.y, opaque.width, opaque.height); } else { wl_region_add(widget->surface->opaque_region, 0, 0, width, height); } } widget_schedule_redraw(widget); } static void frame_redraw_handler(struct widget *widget, void *data) { cairo_t *cr; struct window_frame *frame = data; struct window *window = widget->window; if (window->fullscreen) return; cr = widget_cairo_create(widget); frame_repaint(frame->frame, cr); cairo_destroy(cr); } static int frame_get_pointer_image_for_location(struct window_frame *frame, enum theme_location location) { struct window *window = frame->widget->window; if (window->custom) return CURSOR_LEFT_PTR; switch (location) { case THEME_LOCATION_RESIZING_TOP: return CURSOR_TOP; case THEME_LOCATION_RESIZING_BOTTOM: return CURSOR_BOTTOM; case THEME_LOCATION_RESIZING_LEFT: return CURSOR_LEFT; case THEME_LOCATION_RESIZING_RIGHT: return CURSOR_RIGHT; case THEME_LOCATION_RESIZING_TOP_LEFT: return CURSOR_TOP_LEFT; case THEME_LOCATION_RESIZING_TOP_RIGHT: return CURSOR_TOP_RIGHT; case THEME_LOCATION_RESIZING_BOTTOM_LEFT: return CURSOR_BOTTOM_LEFT; case THEME_LOCATION_RESIZING_BOTTOM_RIGHT: return CURSOR_BOTTOM_RIGHT; case THEME_LOCATION_EXTERIOR: case THEME_LOCATION_TITLEBAR: default: return CURSOR_LEFT_PTR; } } static void frame_menu_func(void *data, struct input *input, int index) { struct window *window = data; switch (index) { case 0: /* close */ window_close(window); break; case 1: /* fullscreen */ /* we don't have a way to get out of fullscreen for now */ if (window->fullscreen_handler) window->fullscreen_handler(window, window->user_data); break; } } void window_show_frame_menu(struct window *window, struct input *input, uint32_t time) { int32_t x, y; int count; static const char *entries[] = { "Close", "Fullscreen" }; if (window->fullscreen_handler) count = ARRAY_LENGTH(entries); else count = ARRAY_LENGTH(entries) - 1; input_get_position(input, &x, &y); window_show_menu(window->display, input, time, window, x - 10, y - 10, frame_menu_func, entries, count); } static int frame_enter_handler(struct widget *widget, struct input *input, float x, float y, void *data) { struct window_frame *frame = data; enum theme_location location; location = frame_pointer_enter(frame->frame, input, x, y); if (frame_status(frame->frame) & FRAME_STATUS_REPAINT) widget_schedule_redraw(frame->widget); return frame_get_pointer_image_for_location(data, location); } static int frame_motion_handler(struct widget *widget, struct input *input, uint32_t time, float x, float y, void *data) { struct window_frame *frame = data; enum theme_location location; location = frame_pointer_motion(frame->frame, input, x, y); if (frame_status(frame->frame) & FRAME_STATUS_REPAINT) widget_schedule_redraw(frame->widget); return frame_get_pointer_image_for_location(data, location); } static void frame_leave_handler(struct widget *widget, struct input *input, void *data) { struct window_frame *frame = data; frame_pointer_leave(frame->frame, input); if (frame_status(frame->frame) & FRAME_STATUS_REPAINT) widget_schedule_redraw(frame->widget); } static void frame_handle_status(struct window_frame *frame, struct input *input, uint32_t time, enum theme_location location) { struct window *window = frame->widget->window; uint32_t status; status = frame_status(frame->frame); if (status & FRAME_STATUS_REPAINT) widget_schedule_redraw(frame->widget); if (status & FRAME_STATUS_MINIMIZE) { window_set_minimized(window); frame_status_clear(frame->frame, FRAME_STATUS_MINIMIZE); } if (status & FRAME_STATUS_MENU) { window_show_frame_menu(window, input, time); frame_status_clear(frame->frame, FRAME_STATUS_MENU); } if (status & FRAME_STATUS_MAXIMIZE) { window_set_maximized(window, !window->maximized); frame_status_clear(frame->frame, FRAME_STATUS_MAXIMIZE); } if (status & FRAME_STATUS_CLOSE) { window_close(window); return; } if ((status & FRAME_STATUS_MOVE) && window->xdg_toplevel) { input_ungrab(input); xdg_toplevel_move(window->xdg_toplevel, input_get_seat(input), window->display->serial); frame_status_clear(frame->frame, FRAME_STATUS_MOVE); } if ((status & FRAME_STATUS_RESIZE) && window->xdg_toplevel) { input_ungrab(input); xdg_toplevel_resize(window->xdg_toplevel, input_get_seat(input), window->display->serial, location); frame_status_clear(frame->frame, FRAME_STATUS_RESIZE); } } #define DOUBLE_CLICK_PERIOD 250 static void frame_button_handler(struct widget *widget, struct input *input, uint32_t time, uint32_t button, enum wl_pointer_button_state state, void *data) { struct window_frame *frame = data; enum theme_location location; frame->double_click = 0; if (state == WL_POINTER_BUTTON_STATE_PRESSED) { if (time - frame->last_time <= DOUBLE_CLICK_PERIOD) { frame->double_click = 1; frame->did_double = 1; } else frame->did_double = 0; frame->last_time = time; } else if (frame->did_double == 1) { frame->double_click = 1; frame->did_double = 0; } if (frame->double_click) location = frame_double_click(frame->frame, input, button, state); else location = frame_pointer_button(frame->frame, input, button, state); frame_handle_status(frame, input, time, location); } static void frame_touch_down_handler(struct widget *widget, struct input *input, uint32_t serial, uint32_t time, int32_t id, float x, float y, void *data) { struct window_frame *frame = data; frame->double_click = 0; if (time - frame->last_time <= DOUBLE_CLICK_PERIOD && frame->last_id == id) { frame->double_click = 1; frame->did_double = 1; frame->double_id = id; } else frame->did_double = 0; frame->last_time = time; frame->last_id = id; if (frame->double_click) frame_double_touch_down(frame->frame, input, id, x, y); else frame_touch_down(frame->frame, input, id, x, y); frame_handle_status(frame, input, time, THEME_LOCATION_CLIENT_AREA); } static void frame_touch_up_handler(struct widget *widget, struct input *input, uint32_t serial, uint32_t time, int32_t id, void *data) { struct window_frame *frame = data; if (frame->double_id == id && frame->did_double) { frame->did_double = 0; frame->double_id = 0; frame_double_touch_up(frame->frame, input, id); } else frame_touch_up(frame->frame, input, id); frame_handle_status(frame, input, time, THEME_LOCATION_CLIENT_AREA); } struct widget * window_frame_create(struct window *window, void *data) { struct window_frame *frame; uint32_t buttons; if (window->custom) { buttons = FRAME_BUTTON_NONE; } else { buttons = FRAME_BUTTON_ALL; } frame = xzalloc(sizeof *frame); frame->frame = frame_create(window->display->theme, 0, 0, buttons, window->title, NULL); if (!frame->frame) { free(frame); return NULL; } frame->widget = window_add_widget(window, frame); frame->child = widget_add_widget(frame->widget, data); widget_set_redraw_handler(frame->widget, frame_redraw_handler); widget_set_resize_handler(frame->widget, frame_resize_handler); widget_set_enter_handler(frame->widget, frame_enter_handler); widget_set_leave_handler(frame->widget, frame_leave_handler); widget_set_motion_handler(frame->widget, frame_motion_handler); widget_set_button_handler(frame->widget, frame_button_handler); widget_set_touch_down_handler(frame->widget, frame_touch_down_handler); widget_set_touch_up_handler(frame->widget, frame_touch_up_handler); window->frame = frame; return frame->child; } void window_frame_set_child_size(struct widget *widget, int child_width, int child_height) { struct display *display = widget->window->display; struct theme *t = display->theme; int decoration_width, decoration_height; int width, height; int margin = widget->window->maximized ? 0 : t->margin; if (!widget->window->fullscreen) { decoration_width = (t->width + margin) * 2; decoration_height = t->width + t->titlebar_height + margin * 2; width = child_width + decoration_width; height = child_height + decoration_height; } else { width = child_width; height = child_height; } window_schedule_resize(widget->window, width, height); } static void window_frame_destroy(struct window_frame *frame) { frame_destroy(frame->frame); /* frame->child must be destroyed by the application */ widget_destroy(frame->widget); free(frame); } static void input_set_focus_widget(struct input *input, struct widget *focus, float x, float y) { struct widget *old, *widget; int cursor; if (focus == input->focus_widget) return; old = input->focus_widget; if (old) { widget = old; if (input->grab) widget = input->grab; if (widget->leave_handler) widget->leave_handler(old, input, widget->user_data); input->focus_widget = NULL; } if (focus) { widget = focus; if (input->grab) widget = input->grab; input->focus_widget = focus; if (widget->enter_handler) cursor = widget->enter_handler(focus, input, x, y, widget->user_data); else cursor = widget->default_cursor; input_set_pointer_image(input, cursor); } } void touch_grab(struct input *input, int32_t touch_id) { input->touch_grab = 1; input->touch_grab_id = touch_id; } void touch_ungrab(struct input *input) { struct touch_point *tp, *tmp; input->touch_grab = 0; wl_list_for_each_safe(tp, tmp, &input->touch_point_list, link) { if (tp->id != input->touch_grab_id) continue; wl_list_remove(&tp->link); free(tp); return; } } void input_grab(struct input *input, struct widget *widget, uint32_t button) { input->grab = widget; input->grab_button = button; input_set_focus_widget(input, widget, input->sx, input->sy); } void input_ungrab(struct input *input) { struct widget *widget; input->grab = NULL; if (input->pointer_focus) { widget = window_find_widget(input->pointer_focus, input->sx, input->sy); input_set_focus_widget(input, widget, input->sx, input->sy); } } static void cursor_delay_timer_reset(struct input *input, uint32_t duration) { if (!duration) input->cursor_timer_running = false; else input->cursor_timer_running = true; toytimer_arm_once_usec(&input->cursor_timer, duration * 1000); } static void cancel_pointer_image_update(struct input *input) { if (input->cursor_timer_running) cursor_delay_timer_reset(input, 0); } static void input_remove_pointer_focus(struct input *input) { struct window *window = input->pointer_focus; if (!window) return; input_set_focus_widget(input, NULL, 0, 0); input->pointer_focus = NULL; input->current_cursor = CURSOR_UNSET; cancel_pointer_image_update(input); wl_surface_destroy(input->pointer_surface); input->pointer_surface = NULL; if (input->cursor_frame_cb) { wl_callback_destroy(input->cursor_frame_cb); input->cursor_frame_cb = NULL; } } static void pointer_handle_enter(void *data, struct wl_pointer *pointer, uint32_t serial, struct wl_surface *surface, wl_fixed_t sx_w, wl_fixed_t sy_w) { struct input *input = data; struct window *window; struct widget *widget; float sx = wl_fixed_to_double(sx_w); float sy = wl_fixed_to_double(sy_w); if (!surface) { /* enter event for a window we've just destroyed */ return; } window = wl_surface_get_user_data(surface); if (surface != window->main_surface->surface) { DBG("Ignoring input event from subsurface %p\n", surface); return; } input->display->serial = serial; input->pointer_enter_serial = serial; input->pointer_focus = window; input->sx = sx; input->sy = sy; widget = window_find_widget(window, sx, sy); input_set_focus_widget(input, widget, sx, sy); } static void pointer_handle_leave(void *data, struct wl_pointer *pointer, uint32_t serial, struct wl_surface *surface) { struct input *input = data; input->display->serial = serial; input_remove_pointer_focus(input); } static void pointer_handle_motion(void *data, struct wl_pointer *pointer, uint32_t time, wl_fixed_t sx_w, wl_fixed_t sy_w) { struct input *input = data; struct window *window = input->pointer_focus; struct widget *widget; int cursor; float sx = wl_fixed_to_double(sx_w); float sy = wl_fixed_to_double(sy_w); if (!window) return; input->sx = sx; input->sy = sy; /* when making the window smaller - e.g. after an unmaximise we might * still have a pending motion event that the compositor has picked * based on the old surface dimensions. However, if we have an active * grab, we expect to see input from outside the window anyway. */ if (!input->grab && (sx < window->main_surface->allocation.x || sy < window->main_surface->allocation.y || sx > window->main_surface->allocation.width || sy > window->main_surface->allocation.height)) return; if (!(input->grab && input->grab_button)) { widget = window_find_widget(window, sx, sy); input_set_focus_widget(input, widget, sx, sy); } if (input->grab) widget = input->grab; else widget = input->focus_widget; if (widget) { if (widget->motion_handler) cursor = widget->motion_handler(input->focus_widget, input, time, sx, sy, widget->user_data); else cursor = widget->default_cursor; } else cursor = CURSOR_LEFT_PTR; input_set_pointer_image(input, cursor); } static void pointer_handle_button(void *data, struct wl_pointer *pointer, uint32_t serial, uint32_t time, uint32_t button, uint32_t state_w) { struct input *input = data; struct widget *widget; enum wl_pointer_button_state state = state_w; input->display->serial = serial; if (input->focus_widget && input->grab == NULL && state == WL_POINTER_BUTTON_STATE_PRESSED) input_grab(input, input->focus_widget, button); widget = input->grab; if (widget && widget->button_handler) (*widget->button_handler)(widget, input, time, button, state, input->grab->user_data); if (input->grab && input->grab_button == button && state == WL_POINTER_BUTTON_STATE_RELEASED) input_ungrab(input); } static void pointer_handle_axis(void *data, struct wl_pointer *pointer, uint32_t time, uint32_t axis, wl_fixed_t value) { struct input *input = data; struct widget *widget; widget = input->focus_widget; if (input->grab) widget = input->grab; if (widget && widget->axis_handler) (*widget->axis_handler)(widget, input, time, axis, value, widget->user_data); } static void pointer_handle_frame(void *data, struct wl_pointer *pointer) { struct input *input = data; struct widget *widget; widget = input->focus_widget; if (input->grab) widget = input->grab; if (widget && widget->pointer_frame_handler) (*widget->pointer_frame_handler)(widget, input, widget->user_data); } static void pointer_handle_axis_source(void *data, struct wl_pointer *pointer, uint32_t source) { struct input *input = data; struct widget *widget; widget = input->focus_widget; if (input->grab) widget = input->grab; if (widget && widget->axis_source_handler) (*widget->axis_source_handler)(widget, input, source, widget->user_data); } static void pointer_handle_axis_stop(void *data, struct wl_pointer *pointer, uint32_t time, uint32_t axis) { struct input *input = data; struct widget *widget; widget = input->focus_widget; if (input->grab) widget = input->grab; if (widget && widget->axis_stop_handler) (*widget->axis_stop_handler)(widget, input, time, axis, widget->user_data); } static void pointer_handle_axis_discrete(void *data, struct wl_pointer *pointer, uint32_t axis, int32_t discrete) { struct input *input = data; struct widget *widget; widget = input->focus_widget; if (input->grab) widget = input->grab; if (widget && widget->axis_discrete_handler) (*widget->axis_discrete_handler)(widget, input, axis, discrete, widget->user_data); } static const struct wl_pointer_listener pointer_listener = { pointer_handle_enter, pointer_handle_leave, pointer_handle_motion, pointer_handle_button, pointer_handle_axis, pointer_handle_frame, pointer_handle_axis_source, pointer_handle_axis_stop, pointer_handle_axis_discrete, }; static void input_remove_keyboard_focus(struct input *input) { struct window *window = input->keyboard_focus; toytimer_disarm(&input->repeat_timer); if (!window) return; if (window->keyboard_focus_handler) (*window->keyboard_focus_handler)(window, NULL, window->user_data); input->keyboard_focus = NULL; } static void keyboard_repeat_func(struct toytimer *tt) { struct input *input = container_of(tt, struct input, repeat_timer); struct window *window = input->keyboard_focus; if (window && window->key_handler) { (*window->key_handler)(window, input, input->repeat_time, input->repeat_key, input->repeat_sym, WL_KEYBOARD_KEY_STATE_PRESSED, window->user_data); } } static void keyboard_handle_keymap(void *data, struct wl_keyboard *keyboard, uint32_t format, int fd, uint32_t size) { struct input *input = data; struct xkb_keymap *keymap; struct xkb_state *state; #ifdef HAVE_XKBCOMMON_COMPOSE struct xkb_compose_table *compose_table; struct xkb_compose_state *compose_state; #endif char *locale; char *map_str; if (!data) { close(fd); return; } if (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1) { close(fd); return; } map_str = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0); if (map_str == MAP_FAILED) { close(fd); return; } /* Set up XKB keymap */ keymap = xkb_keymap_new_from_string(input->display->xkb_context, map_str, XKB_KEYMAP_FORMAT_TEXT_V1, 0); munmap(map_str, size); close(fd); if (!keymap) { fprintf(stderr, "failed to compile keymap\n"); return; } /* Set up XKB state */ state = xkb_state_new(keymap); if (!state) { fprintf(stderr, "failed to create XKB state\n"); xkb_keymap_unref(keymap); return; } /* Look up the preferred locale, falling back to "C" as default */ if (!(locale = getenv("LC_ALL"))) if (!(locale = getenv("LC_CTYPE"))) if (!(locale = getenv("LANG"))) locale = "C"; /* Set up XKB compose table */ #ifdef HAVE_XKBCOMMON_COMPOSE compose_table = xkb_compose_table_new_from_locale(input->display->xkb_context, locale, XKB_COMPOSE_COMPILE_NO_FLAGS); if (compose_table) { /* Set up XKB compose state */ compose_state = xkb_compose_state_new(compose_table, XKB_COMPOSE_STATE_NO_FLAGS); if (compose_state) { xkb_compose_state_unref(input->xkb.compose_state); xkb_compose_table_unref(input->xkb.compose_table); input->xkb.compose_state = compose_state; input->xkb.compose_table = compose_table; } else { fprintf(stderr, "could not create XKB compose state. " "Disabiling compose.\n"); xkb_compose_table_unref(compose_table); compose_table = NULL; } } else { fprintf(stderr, "could not create XKB compose table for locale '%s'. " "Disabiling compose\n", locale); } #endif xkb_keymap_unref(input->xkb.keymap); xkb_state_unref(input->xkb.state); input->xkb.keymap = keymap; input->xkb.state = state; input->xkb.control_mask = 1 << xkb_keymap_mod_get_index(input->xkb.keymap, "Control"); input->xkb.alt_mask = 1 << xkb_keymap_mod_get_index(input->xkb.keymap, "Mod1"); input->xkb.shift_mask = 1 << xkb_keymap_mod_get_index(input->xkb.keymap, "Shift"); } static void keyboard_handle_enter(void *data, struct wl_keyboard *keyboard, uint32_t serial, struct wl_surface *surface, struct wl_array *keys) { struct input *input = data; struct window *window; if (!surface) { /* enter event for a window we've just destroyed */ return; } input->display->serial = serial; input->keyboard_focus = wl_surface_get_user_data(surface); window = input->keyboard_focus; if (window->keyboard_focus_handler) (*window->keyboard_focus_handler)(window, input, window->user_data); } static void keyboard_handle_leave(void *data, struct wl_keyboard *keyboard, uint32_t serial, struct wl_surface *surface) { struct input *input = data; input->display->serial = serial; input_remove_keyboard_focus(input); } /* Translate symbols appropriately if a compose sequence is being entered */ static xkb_keysym_t process_key_press(xkb_keysym_t sym, struct input *input) { #ifdef HAVE_XKBCOMMON_COMPOSE if (!input->xkb.compose_state) return sym; if (sym == XKB_KEY_NoSymbol) return sym; if (xkb_compose_state_feed(input->xkb.compose_state, sym) != XKB_COMPOSE_FEED_ACCEPTED) return sym; switch (xkb_compose_state_get_status(input->xkb.compose_state)) { case XKB_COMPOSE_COMPOSING: return XKB_KEY_NoSymbol; case XKB_COMPOSE_COMPOSED: return xkb_compose_state_get_one_sym(input->xkb.compose_state); case XKB_COMPOSE_CANCELLED: return XKB_KEY_NoSymbol; case XKB_COMPOSE_NOTHING: return sym; default: return sym; } #else return sym; #endif } static void keyboard_handle_key(void *data, struct wl_keyboard *keyboard, uint32_t serial, uint32_t time, uint32_t key, uint32_t state_w) { struct input *input = data; struct window *window = input->keyboard_focus; uint32_t code, num_syms; enum wl_keyboard_key_state state = state_w; const xkb_keysym_t *syms; xkb_keysym_t sym; struct itimerspec its; input->display->serial = serial; code = key + 8; if (!window || !input->xkb.state) return; /* We only use input grabs for pointer events for now, so just * ignore key presses if a grab is active. We expand the key * event delivery mechanism to route events to widgets to * properly handle key grabs. In the meantime, this prevents * key event delivery while a grab is active. */ if (input->grab && input->grab_button == 0) return; num_syms = xkb_state_key_get_syms(input->xkb.state, code, &syms); sym = XKB_KEY_NoSymbol; if (num_syms == 1) sym = syms[0]; if (sym == XKB_KEY_F5 && input->modifiers == MOD_ALT_MASK) { if (state == WL_KEYBOARD_KEY_STATE_PRESSED) window_set_maximized(window, !window->maximized); } else if (sym == XKB_KEY_F11 && window->fullscreen_handler && state == WL_KEYBOARD_KEY_STATE_PRESSED) { window->fullscreen_handler(window, window->user_data); } else if (sym == XKB_KEY_F4 && input->modifiers == MOD_ALT_MASK && state == WL_KEYBOARD_KEY_STATE_PRESSED) { window_close(window); } else if (window->key_handler) { if (state == WL_KEYBOARD_KEY_STATE_PRESSED) sym = process_key_press(sym, input); (*window->key_handler)(window, input, time, key, sym, state, window->user_data); } if (state == WL_KEYBOARD_KEY_STATE_RELEASED && key == input->repeat_key) { toytimer_disarm(&input->repeat_timer); } else if (state == WL_KEYBOARD_KEY_STATE_PRESSED && xkb_keymap_key_repeats(input->xkb.keymap, code)) { input->repeat_sym = sym; input->repeat_key = key; input->repeat_time = time; its.it_interval.tv_sec = input->repeat_rate_sec; its.it_interval.tv_nsec = input->repeat_rate_nsec; its.it_value.tv_sec = input->repeat_delay_sec; its.it_value.tv_nsec = input->repeat_delay_nsec; toytimer_arm(&input->repeat_timer, &its); } } static void keyboard_handle_modifiers(void *data, struct wl_keyboard *keyboard, uint32_t serial, uint32_t mods_depressed, uint32_t mods_latched, uint32_t mods_locked, uint32_t group) { struct input *input = data; xkb_mod_mask_t mask; /* If we're not using a keymap, then we don't handle PC-style modifiers */ if (!input->xkb.keymap) return; xkb_state_update_mask(input->xkb.state, mods_depressed, mods_latched, mods_locked, 0, 0, group); mask = xkb_state_serialize_mods(input->xkb.state, XKB_STATE_MODS_DEPRESSED | XKB_STATE_MODS_LATCHED); input->modifiers = 0; if (mask & input->xkb.control_mask) input->modifiers |= MOD_CONTROL_MASK; if (mask & input->xkb.alt_mask) input->modifiers |= MOD_ALT_MASK; if (mask & input->xkb.shift_mask) input->modifiers |= MOD_SHIFT_MASK; } static void set_repeat_info(struct input *input, int32_t rate, int32_t delay) { input->repeat_rate_sec = input->repeat_rate_nsec = 0; input->repeat_delay_sec = input->repeat_delay_nsec = 0; /* a rate of zero disables any repeating, regardless of the delay's * value */ if (rate == 0) return; if (rate == 1) input->repeat_rate_sec = 1; else input->repeat_rate_nsec = 1000000000 / rate; input->repeat_delay_sec = delay / 1000; delay -= (input->repeat_delay_sec * 1000); input->repeat_delay_nsec = delay * 1000 * 1000; } static void keyboard_handle_repeat_info(void *data, struct wl_keyboard *keyboard, int32_t rate, int32_t delay) { struct input *input = data; set_repeat_info(input, rate, delay); } static const struct wl_keyboard_listener keyboard_listener = { keyboard_handle_keymap, keyboard_handle_enter, keyboard_handle_leave, keyboard_handle_key, keyboard_handle_modifiers, keyboard_handle_repeat_info }; static void touch_handle_down(void *data, struct wl_touch *wl_touch, uint32_t serial, uint32_t time, struct wl_surface *surface, int32_t id, wl_fixed_t x_w, wl_fixed_t y_w) { struct input *input = data; struct widget *widget; float sx = wl_fixed_to_double(x_w); float sy = wl_fixed_to_double(y_w); if (!surface) { /* down event for a window we've just destroyed */ return; } input->display->serial = serial; input->touch_focus = wl_surface_get_user_data(surface); if (!input->touch_focus) { DBG("Failed to find to touch focus for surface %p\n", surface); return; } if (surface != input->touch_focus->main_surface->surface) { DBG("Ignoring input event from subsurface %p\n", surface); input->touch_focus = NULL; return; } if (input->grab) widget = input->grab; else widget = window_find_widget(input->touch_focus, wl_fixed_to_double(x_w), wl_fixed_to_double(y_w)); if (widget) { struct touch_point *tp = xmalloc(sizeof *tp); if (tp) { tp->id = id; tp->widget = widget; tp->x = sx; tp->y = sy; wl_list_insert(&input->touch_point_list, &tp->link); if (widget->touch_down_handler) (*widget->touch_down_handler)(widget, input, serial, time, id, sx, sy, widget->user_data); } } } static void touch_handle_up(void *data, struct wl_touch *wl_touch, uint32_t serial, uint32_t time, int32_t id) { struct input *input = data; struct touch_point *tp, *tmp; if (!input->touch_focus) { DBG("No touch focus found for touch up event!\n"); return; } wl_list_for_each_safe(tp, tmp, &input->touch_point_list, link) { if (tp->id != id) continue; if (tp->widget->touch_up_handler) (*tp->widget->touch_up_handler)(tp->widget, input, serial, time, id, tp->widget->user_data); wl_list_remove(&tp->link); free(tp); return; } } static void touch_handle_motion(void *data, struct wl_touch *wl_touch, uint32_t time, int32_t id, wl_fixed_t x_w, wl_fixed_t y_w) { struct input *input = data; struct touch_point *tp; float sx = wl_fixed_to_double(x_w); float sy = wl_fixed_to_double(y_w); DBG("touch_handle_motion: %i %i\n", id, wl_list_length(&input->touch_point_list)); if (!input->touch_focus) { DBG("No touch focus found for touch motion event!\n"); return; } wl_list_for_each(tp, &input->touch_point_list, link) { if (tp->id != id) continue; tp->x = sx; tp->y = sy; if (tp->widget->touch_motion_handler) (*tp->widget->touch_motion_handler)(tp->widget, input, time, id, sx, sy, tp->widget->user_data); return; } } static void touch_handle_frame(void *data, struct wl_touch *wl_touch) { struct input *input = data; struct touch_point *tp, *tmp; DBG("touch_handle_frame\n"); if (!input->touch_focus) { DBG("No touch focus found for touch frame event!\n"); return; } wl_list_for_each_safe(tp, tmp, &input->touch_point_list, link) { if (tp->widget->touch_frame_handler) (*tp->widget->touch_frame_handler)(tp->widget, input, tp->widget->user_data); } } static void touch_handle_cancel(void *data, struct wl_touch *wl_touch) { struct input *input = data; struct touch_point *tp, *tmp; DBG("touch_handle_cancel\n"); if (!input->touch_focus) { DBG("No touch focus found for touch cancel event!\n"); return; } wl_list_for_each_safe(tp, tmp, &input->touch_point_list, link) { if (tp->widget->touch_cancel_handler) (*tp->widget->touch_cancel_handler)(tp->widget, input, tp->widget->user_data); wl_list_remove(&tp->link); free(tp); } } static void touch_handle_shape(void *data, struct wl_touch *wl_touch, int32_t id, wl_fixed_t major, wl_fixed_t minor) { } static void touch_handle_orientation(void *data, struct wl_touch *wl_touch, int32_t id, wl_fixed_t orientation) { } static const struct wl_touch_listener touch_listener = { touch_handle_down, touch_handle_up, touch_handle_motion, touch_handle_frame, touch_handle_cancel, touch_handle_shape, touch_handle_orientation, }; static void seat_handle_capabilities(void *data, struct wl_seat *seat, enum wl_seat_capability caps) { struct input *input = data; if ((caps & WL_SEAT_CAPABILITY_POINTER) && !input->pointer) { input->pointer = wl_seat_get_pointer(seat); wl_pointer_set_user_data(input->pointer, input); wl_pointer_add_listener(input->pointer, &pointer_listener, input); } else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && input->pointer) { if (input->seat_version >= WL_POINTER_RELEASE_SINCE_VERSION) wl_pointer_release(input->pointer); else wl_pointer_destroy(input->pointer); input->pointer = NULL; } if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !input->keyboard) { input->keyboard = wl_seat_get_keyboard(seat); wl_keyboard_set_user_data(input->keyboard, input); wl_keyboard_add_listener(input->keyboard, &keyboard_listener, input); } else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && input->keyboard) { if (input->seat_version >= WL_KEYBOARD_RELEASE_SINCE_VERSION) wl_keyboard_release(input->keyboard); else wl_keyboard_destroy(input->keyboard); input->keyboard = NULL; } if ((caps & WL_SEAT_CAPABILITY_TOUCH) && !input->touch) { input->touch = wl_seat_get_touch(seat); wl_touch_set_user_data(input->touch, input); wl_touch_add_listener(input->touch, &touch_listener, input); } else if (!(caps & WL_SEAT_CAPABILITY_TOUCH) && input->touch) { if (input->seat_version >= WL_TOUCH_RELEASE_SINCE_VERSION) wl_touch_release(input->touch); else wl_touch_destroy(input->touch); input->touch = NULL; } } static void seat_handle_name(void *data, struct wl_seat *seat, const char *name) { } static const struct wl_seat_listener seat_listener = { seat_handle_capabilities, seat_handle_name }; void input_get_position(struct input *input, int32_t *x, int32_t *y) { *x = input->sx; *y = input->sy; } int input_get_touch(struct input *input, int32_t id, float *x, float *y) { struct touch_point *tp; wl_list_for_each(tp, &input->touch_point_list, link) { if (tp->id != id) continue; *x = tp->x; *y = tp->y; return 0; } return -1; } struct display * input_get_display(struct input *input) { return input->display; } struct wl_seat * input_get_seat(struct input *input) { return input->seat; } uint32_t input_get_modifiers(struct input *input) { return input->modifiers; } struct widget * input_get_focus_widget(struct input *input) { return input->focus_widget; } struct data_offer { struct wl_data_offer *offer; struct input *input; struct wl_array types; int refcount; struct task io_task; int fd; data_func_t func; int32_t x, y; uint32_t dnd_action; uint32_t source_actions; void *user_data; }; static void data_offer_offer(void *data, struct wl_data_offer *wl_data_offer, const char *type) { struct data_offer *offer = data; char **p; p = wl_array_add(&offer->types, sizeof *p); *p = strdup(type); } static void data_offer_source_actions(void *data, struct wl_data_offer *wl_data_offer, uint32_t source_actions) { struct data_offer *offer = data; offer->source_actions = source_actions; } static void data_offer_action(void *data, struct wl_data_offer *wl_data_offer, uint32_t dnd_action) { struct data_offer *offer = data; offer->dnd_action = dnd_action; } static const struct wl_data_offer_listener data_offer_listener = { data_offer_offer, data_offer_source_actions, data_offer_action }; static void data_offer_destroy(struct data_offer *offer) { char **p; offer->refcount--; if (offer->refcount == 0) { wl_data_offer_destroy(offer->offer); for (p = offer->types.data; *p; p++) free(*p); wl_array_release(&offer->types); free(offer); } } static void data_device_data_offer(void *data, struct wl_data_device *data_device, struct wl_data_offer *_offer) { struct data_offer *offer; offer = xmalloc(sizeof *offer); wl_array_init(&offer->types); offer->refcount = 1; offer->input = data; offer->offer = _offer; wl_data_offer_add_listener(offer->offer, &data_offer_listener, offer); } static void data_device_enter(void *data, struct wl_data_device *data_device, uint32_t serial, struct wl_surface *surface, wl_fixed_t x_w, wl_fixed_t y_w, struct wl_data_offer *offer) { struct input *input = data; struct window *window; void *types_data; float x = wl_fixed_to_double(x_w); float y = wl_fixed_to_double(y_w); char **p; if (!surface) { /* enter event for a window we've just destroyed */ return; } window = wl_surface_get_user_data(surface); input->drag_enter_serial = serial; input->drag_focus = window, input->drag_x = x; input->drag_y = y; if (!input->touch_grab) input->pointer_enter_serial = serial; if (offer) { input->drag_offer = wl_data_offer_get_user_data(offer); p = wl_array_add(&input->drag_offer->types, sizeof *p); *p = NULL; types_data = input->drag_offer->types.data; if (input->display->data_device_manager_version >= WL_DATA_OFFER_SET_ACTIONS_SINCE_VERSION) { wl_data_offer_set_actions(offer, WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY | WL_DATA_DEVICE_MANAGER_DND_ACTION_MOVE, WL_DATA_DEVICE_MANAGER_DND_ACTION_MOVE); } } else { input->drag_offer = NULL; types_data = NULL; } if (window->data_handler) window->data_handler(window, input, x, y, types_data, window->user_data); } static void data_device_leave(void *data, struct wl_data_device *data_device) { struct input *input = data; if (input->drag_offer) { data_offer_destroy(input->drag_offer); input->drag_offer = NULL; } } static void data_device_motion(void *data, struct wl_data_device *data_device, uint32_t time, wl_fixed_t x_w, wl_fixed_t y_w) { struct input *input = data; struct window *window = input->drag_focus; float x = wl_fixed_to_double(x_w); float y = wl_fixed_to_double(y_w); void *types_data; input->drag_x = x; input->drag_y = y; if (input->drag_offer) types_data = input->drag_offer->types.data; else types_data = NULL; if (window->data_handler) window->data_handler(window, input, x, y, types_data, window->user_data); } static void data_device_drop(void *data, struct wl_data_device *data_device) { struct input *input = data; struct window *window = input->drag_focus; float x, y; x = input->drag_x; y = input->drag_y; if (window->drop_handler) window->drop_handler(window, input, x, y, window->user_data); if (input->touch_grab) touch_ungrab(input); } static void data_device_selection(void *data, struct wl_data_device *wl_data_device, struct wl_data_offer *offer) { struct input *input = data; char **p; if (input->selection_offer) data_offer_destroy(input->selection_offer); if (offer) { input->selection_offer = wl_data_offer_get_user_data(offer); p = wl_array_add(&input->selection_offer->types, sizeof *p); *p = NULL; } else { input->selection_offer = NULL; } } static const struct wl_data_device_listener data_device_listener = { data_device_data_offer, data_device_enter, data_device_leave, data_device_motion, data_device_drop, data_device_selection }; static void input_set_pointer_image_index(struct input *input, int index) { struct wl_buffer *buffer; struct wl_cursor *cursor; struct wl_cursor_image *image; struct wl_surface *prev_surface; struct display *d = input->display; if (!input->pointer) return; cursor = input->display->cursors[input->current_cursor]; if (!cursor) return; if (index >= (int) cursor->image_count) { fprintf(stderr, "cursor index out of range\n"); return; } image = cursor->images[index]; buffer = wl_cursor_image_get_buffer(image); if (!buffer) return; /* Don't re-use the previous surface, otherwise the new buffer and the * new hotspot aren't applied atomically. */ prev_surface = input->pointer_surface; input->pointer_surface = wl_compositor_create_surface(d->compositor); wl_surface_attach(input->pointer_surface, buffer, 0, 0); wl_surface_damage(input->pointer_surface, 0, 0, image->width, image->height); wl_surface_commit(input->pointer_surface); wl_pointer_set_cursor(input->pointer, input->pointer_enter_serial, input->pointer_surface, image->hotspot_x, image->hotspot_y); if (prev_surface) wl_surface_destroy(prev_surface); } static const struct wl_callback_listener pointer_surface_listener; static bool input_set_pointer_special(struct input *input) { if (input->current_cursor == CURSOR_BLANK) { wl_pointer_set_cursor(input->pointer, input->pointer_enter_serial, NULL, 0, 0); return true; } if (input->current_cursor == CURSOR_UNSET) return true; return false; } static void schedule_pointer_image_update(struct input *input, struct wl_cursor *cursor, uint32_t duration, bool force_frame) { /* Some silly cursor sets have enormous pauses in them. In these * cases it's better to use a timer even if it results in less * accurate presentation, since it will save us having to set the * same cursor image over and over again. * * This is really not the way we're supposed to time any kind of * animation, but we're pretending it's OK here because we don't * want animated cursors with long delays to needlessly hog CPU. * * We use force_frame to ensure we don't accumulate large timing * errors by running off the wrong clock. */ if (!force_frame && duration > 100) { struct timespec tp; clock_gettime(CLOCK_MONOTONIC, &tp); input->cursor_timer_start = tp.tv_sec * 1000 + tp.tv_nsec / 1000000; cursor_delay_timer_reset(input, duration); return; } /* for short durations we'll just spin on frame callbacks for * accurate timing - the way any kind of timing sensitive animation * should really be done. */ input->cursor_frame_cb = wl_surface_frame(input->pointer_surface); wl_callback_add_listener(input->cursor_frame_cb, &pointer_surface_listener, input); wl_surface_commit(input->pointer_surface); } static void pointer_surface_frame_callback(void *data, struct wl_callback *callback, uint32_t time) { struct input *input = data; struct wl_cursor *cursor; int i; uint32_t duration; bool force_frame = true; cancel_pointer_image_update(input); if (callback) { assert(callback == input->cursor_frame_cb); wl_callback_destroy(callback); input->cursor_frame_cb = NULL; force_frame = false; } if (!input->pointer) return; if (input_set_pointer_special(input)) return; cursor = input->display->cursors[input->current_cursor]; if (!cursor) return; /* FIXME We don't have the current time on the first call so we set * the animation start to the time of the first frame callback. */ if (time == 0) input->cursor_anim_start = 0; else if (input->cursor_anim_start == 0) input->cursor_anim_start = time; input->cursor_anim_current = time; if (time == 0 || input->cursor_anim_start == 0) { duration = 0; i = 0; } else i = wl_cursor_frame_and_duration( cursor, time - input->cursor_anim_start, &duration); input_set_pointer_image_index(input, i); if (cursor->image_count > 1) schedule_pointer_image_update(input, cursor, duration, force_frame); } static void cursor_timer_func(struct toytimer *tt) { struct input *input = container_of(tt, struct input, cursor_timer); struct timespec tp; struct wl_cursor *cursor; uint32_t time; if (!input->cursor_timer_running) return; cursor = input->display->cursors[input->current_cursor]; if (!cursor) return; clock_gettime(CLOCK_MONOTONIC, &tp); time = tp.tv_sec * 1000 + tp.tv_nsec / 1000000 - input->cursor_timer_start; pointer_surface_frame_callback(input, NULL, input->cursor_anim_current + time); } static const struct wl_callback_listener pointer_surface_listener = { pointer_surface_frame_callback }; void input_set_pointer_image(struct input *input, int pointer) { if (!input->pointer) return; if (pointer == input->current_cursor) return; input->current_cursor = pointer; if (!input->cursor_frame_cb) pointer_surface_frame_callback(input, NULL, 0); } struct wl_data_device * input_get_data_device(struct input *input) { return input->data_device; } void input_set_selection(struct input *input, struct wl_data_source *source, uint32_t time) { if (input->data_device) wl_data_device_set_selection(input->data_device, source, time); } void input_accept(struct input *input, const char *type) { wl_data_offer_accept(input->drag_offer->offer, input->drag_enter_serial, type); } static void offer_io_func(struct task *task, uint32_t events) { struct data_offer *offer = container_of(task, struct data_offer, io_task); struct display *display = offer->input->display; unsigned int len; char buffer[4096]; len = read(offer->fd, buffer, sizeof buffer); offer->func(buffer, len, offer->x, offer->y, offer->user_data); if (len == 0) { if ((offer != offer->input->selection_offer) && (display->data_device_manager_version >= WL_DATA_OFFER_FINISH_SINCE_VERSION)) wl_data_offer_finish(offer->offer); close(offer->fd); data_offer_destroy(offer); } } static void data_offer_receive_data(struct data_offer *offer, const char *mime_type, data_func_t func, void *user_data) { int p[2]; if (pipe2(p, O_CLOEXEC) == -1) return; wl_data_offer_receive(offer->offer, mime_type, p[1]); close(p[1]); offer->io_task.run = offer_io_func; offer->fd = p[0]; offer->func = func; offer->refcount++; offer->user_data = user_data; display_watch_fd(offer->input->display, offer->fd, EPOLLIN, &offer->io_task); } void input_receive_drag_data(struct input *input, const char *mime_type, data_func_t func, void *data) { data_offer_receive_data(input->drag_offer, mime_type, func, data); input->drag_offer->x = input->drag_x; input->drag_offer->y = input->drag_y; } int input_receive_drag_data_to_fd(struct input *input, const char *mime_type, int fd) { if (input->drag_offer) wl_data_offer_receive(input->drag_offer->offer, mime_type, fd); return 0; } int input_receive_selection_data(struct input *input, const char *mime_type, data_func_t func, void *data) { char **p; if (input->selection_offer == NULL) return -1; for (p = input->selection_offer->types.data; *p; p++) if (strcmp(mime_type, *p) == 0) break; if (*p == NULL) return -1; data_offer_receive_data(input->selection_offer, mime_type, func, data); return 0; } int input_receive_selection_data_to_fd(struct input *input, const char *mime_type, int fd) { if (input->selection_offer) wl_data_offer_receive(input->selection_offer->offer, mime_type, fd); return 0; } void window_move(struct window *window, struct input *input, uint32_t serial) { if (!window->xdg_toplevel) return; xdg_toplevel_move(window->xdg_toplevel, input->seat, serial); } static void surface_set_synchronized(struct surface *surface) { if (!surface->subsurface) return; if (surface->synchronized) return; wl_subsurface_set_sync(surface->subsurface); surface->synchronized = 1; } static void surface_set_synchronized_default(struct surface *surface) { if (!surface->subsurface) return; if (surface->synchronized == surface->synchronized_default) return; if (surface->synchronized_default) wl_subsurface_set_sync(surface->subsurface); else wl_subsurface_set_desync(surface->subsurface); surface->synchronized = surface->synchronized_default; } static void surface_resize(struct surface *surface) { struct widget *widget = surface->widget; struct wl_compositor *compositor = widget->window->display->compositor; if (surface->input_region) { wl_region_destroy(surface->input_region); surface->input_region = NULL; } if (surface->opaque_region) wl_region_destroy(surface->opaque_region); surface->opaque_region = wl_compositor_create_region(compositor); if (widget->resize_handler) widget->resize_handler(widget, widget->allocation.width, widget->allocation.height, widget->user_data); if (surface->subsurface && (surface->allocation.x != widget->allocation.x || surface->allocation.y != widget->allocation.y)) { wl_subsurface_set_position(surface->subsurface, widget->allocation.x, widget->allocation.y); } if (surface->allocation.width != widget->allocation.width || surface->allocation.height != widget->allocation.height) { window_schedule_redraw(widget->window); } surface->allocation = widget->allocation; if (widget->opaque) wl_region_add(surface->opaque_region, 0, 0, widget->allocation.width, widget->allocation.height); } static void window_do_resize(struct window *window) { struct surface *surface; widget_set_allocation(window->main_surface->widget, window->pending_allocation.x, window->pending_allocation.y, window->pending_allocation.width, window->pending_allocation.height); surface_resize(window->main_surface); /* The main surface is in the list, too. Main surface's * resize_handler is responsible for calling widget_set_allocation() * on all sub-surface root widgets, so they will be resized * properly. */ wl_list_for_each(surface, &window->subsurface_list, link) { if (surface == window->main_surface) continue; surface_set_synchronized(surface); surface_resize(surface); } if (!window->fullscreen && !window->maximized) window->saved_allocation = window->pending_allocation; if (window->confined && window->confined_widget) { struct wl_compositor *compositor = window->display->compositor; struct wl_region *region; struct widget *widget = window->confined_widget; region = wl_compositor_create_region(compositor); wl_region_add(region, widget->allocation.x, widget->allocation.y, widget->allocation.width, widget->allocation.height); zwp_confined_pointer_v1_set_region(window->confined_pointer, region); wl_region_destroy(region); } } static void idle_resize(struct window *window) { window->resize_needed = 0; window->redraw_needed = 1; DBG("from %dx%d to %dx%d\n", window->main_surface->server_allocation.width, window->main_surface->server_allocation.height, window->pending_allocation.width, window->pending_allocation.height); window_do_resize(window); } static void undo_resize(struct window *window) { window->pending_allocation.width = window->main_surface->server_allocation.width; window->pending_allocation.height = window->main_surface->server_allocation.height; DBG("back to %dx%d\n", window->main_surface->server_allocation.width, window->main_surface->server_allocation.height); window_do_resize(window); if (window->pending_allocation.width == 0 && window->pending_allocation.height == 0) { fprintf(stderr, "Error: Could not draw a surface, " "most likely due to insufficient disk space in " "%s (XDG_RUNTIME_DIR).\n", getenv("XDG_RUNTIME_DIR")); exit(EXIT_FAILURE); } } void window_schedule_resize(struct window *window, int width, int height) { /* We should probably get these numbers from the theme. */ const int min_width = 200, min_height = 200; window->pending_allocation.x = 0; window->pending_allocation.y = 0; window->pending_allocation.width = width; window->pending_allocation.height = height; if (window->min_allocation.width == 0) { if (width < min_width && window->frame) window->min_allocation.width = min_width; else window->min_allocation.width = width; if (height < min_height && window->frame) window->min_allocation.height = min_height; else window->min_allocation.height = height; } if (window->pending_allocation.width < window->min_allocation.width) window->pending_allocation.width = window->min_allocation.width; if (window->pending_allocation.height < window->min_allocation.height) window->pending_allocation.height = window->min_allocation.height; window->resize_needed = 1; window_schedule_redraw(window); } void widget_schedule_resize(struct widget *widget, int32_t width, int32_t height) { window_schedule_resize(widget->window, width, height); } static int window_get_shadow_margin(struct window *window) { if (window->frame && !window->fullscreen) return frame_get_shadow_margin(window->frame->frame); else return 0; } void window_inhibit_redraw(struct window *window) { window->redraw_inhibited = 1; wl_list_remove(&window->redraw_task.link); wl_list_init(&window->redraw_task.link); window->redraw_task_scheduled = 0; } void window_uninhibit_redraw(struct window *window) { window->redraw_inhibited = 0; if (window->redraw_needed || window->resize_needed) window_schedule_redraw_task(window); } static void xdg_surface_handle_configure(void *data, struct xdg_surface *xdg_surface, uint32_t serial) { struct window *window = data; xdg_surface_ack_configure(window->xdg_surface, serial); if (window->state_changed_handler) window->state_changed_handler(window, window->user_data); window_uninhibit_redraw(window); } static const struct xdg_surface_listener xdg_surface_listener = { xdg_surface_handle_configure }; static void xdg_toplevel_handle_configure(void *data, struct xdg_toplevel *xdg_toplevel, int32_t width, int32_t height, struct wl_array *states) { struct window *window = data; uint32_t *p; window->maximized = 0; window->fullscreen = 0; window->resizing = 0; window->focused = 0; wl_array_for_each(p, states) { uint32_t state = *p; switch (state) { case XDG_TOPLEVEL_STATE_MAXIMIZED: window->maximized = 1; break; case XDG_TOPLEVEL_STATE_FULLSCREEN: window->fullscreen = 1; break; case XDG_TOPLEVEL_STATE_RESIZING: window->resizing = 1; break; case XDG_TOPLEVEL_STATE_ACTIVATED: window->focused = 1; break; default: /* Unknown state */ break; } } if (window->frame) { if (window->maximized) { frame_set_flag(window->frame->frame, FRAME_FLAG_MAXIMIZED); } else { frame_unset_flag(window->frame->frame, FRAME_FLAG_MAXIMIZED); } if (window->focused) { frame_set_flag(window->frame->frame, FRAME_FLAG_ACTIVE); } else { frame_unset_flag(window->frame->frame, FRAME_FLAG_ACTIVE); } } if (width > 0 && height > 0) { /* The width / height params are for window geometry, * but window_schedule_resize takes allocation. Add * on the shadow margin to get the difference. */ int margin = window_get_shadow_margin(window); window_schedule_resize(window, width + margin * 2, height + margin * 2); } else if (window->saved_allocation.width > 0 && window->saved_allocation.height > 0) { window_schedule_resize(window, window->saved_allocation.width, window->saved_allocation.height); } } static void xdg_toplevel_handle_close(void *data, struct xdg_toplevel *xdg_surface) { struct window *window = data; window_close(window); } static const struct xdg_toplevel_listener xdg_toplevel_listener = { xdg_toplevel_handle_configure, xdg_toplevel_handle_close, }; static void window_sync_parent(struct window *window) { struct xdg_toplevel *parent_toplevel; if (!window->xdg_surface) return; if (window->parent == window->last_parent) return; if (window->parent) parent_toplevel = window->parent->xdg_toplevel; else parent_toplevel = NULL; xdg_toplevel_set_parent(window->xdg_toplevel, parent_toplevel); window->last_parent = window->parent; } static void window_get_geometry(struct window *window, struct rectangle *geometry) { if (window->frame && !window->fullscreen) frame_input_rect(window->frame->frame, &geometry->x, &geometry->y, &geometry->width, &geometry->height); else window_get_allocation(window, geometry); } static void window_sync_geometry(struct window *window) { struct rectangle geometry; if (!window->xdg_surface) return; window_get_geometry(window, &geometry); if (geometry.x == window->last_geometry.x && geometry.y == window->last_geometry.y && geometry.width == window->last_geometry.width && geometry.height == window->last_geometry.height) return; xdg_surface_set_window_geometry(window->xdg_surface, geometry.x, geometry.y, geometry.width, geometry.height); window->last_geometry = geometry; } static void window_flush(struct window *window) { struct surface *surface; assert(!window->redraw_inhibited); if (!window->custom) { if (window->xdg_surface) window_sync_geometry(window); if (window->xdg_toplevel) window_sync_parent(window); } wl_list_for_each(surface, &window->subsurface_list, link) { if (surface == window->main_surface) continue; surface_flush(surface); } surface_flush(window->main_surface); } static void menu_destroy(struct menu *menu) { widget_destroy(menu->widget); window_destroy(menu->window); frame_destroy(menu->frame); free(menu); } void window_get_allocation(struct window *window, struct rectangle *allocation) { *allocation = window->main_surface->allocation; } static void widget_redraw(struct widget *widget) { struct widget *child; if (widget->redraw_handler) widget->redraw_handler(widget, widget->user_data); wl_list_for_each(child, &widget->child_list, link) widget_redraw(child); } static void frame_callback(void *data, struct wl_callback *callback, uint32_t time) { struct surface *surface = data; assert(callback == surface->frame_cb); DBG_OBJ(callback, "done\n"); wl_callback_destroy(callback); surface->frame_cb = NULL; surface->last_time = time; if (surface->redraw_needed || surface->window->redraw_needed) { DBG_OBJ(surface->surface, "window_schedule_redraw_task\n"); window_schedule_redraw_task(surface->window); } } static const struct wl_callback_listener listener = { frame_callback }; static int surface_redraw(struct surface *surface) { DBG_OBJ(surface->surface, "begin\n"); if (!surface->window->redraw_needed && !surface->redraw_needed) return 0; /* Whole-window redraw forces a redraw even if the previous has * not yet hit the screen. */ if (surface->frame_cb) { if (!surface->window->redraw_needed) return 0; DBG_OBJ(surface->frame_cb, "cancelled\n"); wl_callback_destroy(surface->frame_cb); } if (surface->widget->use_cairo && !widget_get_cairo_surface(surface->widget)) { DBG_OBJ(surface->surface, "cancelled due to buffer failure\n"); return -1; } surface->frame_cb = wl_surface_frame(surface->surface); wl_callback_add_listener(surface->frame_cb, &listener, surface); DBG_OBJ(surface->frame_cb, "new\n"); surface->redraw_needed = 0; DBG_OBJ(surface->surface, "-> widget_redraw\n"); widget_redraw(surface->widget); DBG_OBJ(surface->surface, "done\n"); return 0; } static void idle_redraw(struct task *task, uint32_t events) { struct window *window = container_of(task, struct window, redraw_task); struct surface *surface; int failed = 0; int resized = 0; DBG(" --------- \n"); wl_list_init(&window->redraw_task.link); window->redraw_task_scheduled = 0; if (window->resize_needed) { /* throttle resizing to the main surface display */ if (window->main_surface->frame_cb) { DBG_OBJ(window->main_surface->frame_cb, "pending\n"); return; } idle_resize(window); resized = 1; } if (surface_redraw(window->main_surface) < 0) { /* * Only main_surface failure will cause us to undo the resize. * If sub-surfaces fail, they will just be broken with old * content. */ failed = 1; } else { wl_list_for_each(surface, &window->subsurface_list, link) { if (surface == window->main_surface) continue; surface_redraw(surface); } } window->redraw_needed = 0; window_flush(window); wl_list_for_each(surface, &window->subsurface_list, link) surface_set_synchronized_default(surface); if (resized && failed) { /* Restore widget tree to correspond to what is on screen. */ undo_resize(window); } } static void window_schedule_redraw_task(struct window *window) { if (window->redraw_inhibited) return; if (!window->redraw_task_scheduled) { window->redraw_task.run = idle_redraw; display_defer(window->display, &window->redraw_task); window->redraw_task_scheduled = 1; } } void window_schedule_redraw(struct window *window) { struct surface *surface; DBG_OBJ(window->main_surface->surface, "window %p\n", window); wl_list_for_each(surface, &window->subsurface_list, link) surface->redraw_needed = 1; window_schedule_redraw_task(window); } int window_is_fullscreen(struct window *window) { return window->fullscreen; } void window_set_fullscreen(struct window *window, int fullscreen) { if (!window->xdg_toplevel) return; if (window->fullscreen == fullscreen) return; if (fullscreen) xdg_toplevel_set_fullscreen(window->xdg_toplevel, NULL); else xdg_toplevel_unset_fullscreen(window->xdg_toplevel); } int window_is_maximized(struct window *window) { return window->maximized; } void window_set_maximized(struct window *window, int maximized) { if (!window->xdg_toplevel) return; if (window->maximized == maximized) return; if (maximized) xdg_toplevel_set_maximized(window->xdg_toplevel); else xdg_toplevel_unset_maximized(window->xdg_toplevel); } int window_is_resizing(struct window *window) { return window->resizing; } void window_set_minimized(struct window *window) { if (!window->xdg_toplevel) return; xdg_toplevel_set_minimized(window->xdg_toplevel); } void window_set_user_data(struct window *window, void *data) { window->user_data = data; } void * window_get_user_data(struct window *window) { return window->user_data; } void window_set_key_handler(struct window *window, window_key_handler_t handler) { window->key_handler = handler; } void window_set_keyboard_focus_handler(struct window *window, window_keyboard_focus_handler_t handler) { window->keyboard_focus_handler = handler; } void window_set_data_handler(struct window *window, window_data_handler_t handler) { window->data_handler = handler; } void window_set_drop_handler(struct window *window, window_drop_handler_t handler) { window->drop_handler = handler; } void window_set_close_handler(struct window *window, window_close_handler_t handler) { window->close_handler = handler; } void window_set_fullscreen_handler(struct window *window, window_fullscreen_handler_t handler) { window->fullscreen_handler = handler; } void window_set_output_handler(struct window *window, window_output_handler_t handler) { window->output_handler = handler; } void window_set_state_changed_handler(struct window *window, window_state_changed_handler_t handler) { window->state_changed_handler = handler; } void window_set_pointer_locked_handler(struct window *window, locked_pointer_locked_handler_t locked, locked_pointer_unlocked_handler_t unlocked) { window->pointer_unlocked_handler = unlocked; window->pointer_locked_handler = locked; } void window_set_pointer_confined_handler(struct window *window, confined_pointer_confined_handler_t confined, confined_pointer_unconfined_handler_t unconfined) { window->pointer_confined_handler = confined; window->pointer_unconfined_handler = unconfined; } void window_set_locked_pointer_motion_handler(struct window *window, window_locked_pointer_motion_handler_t handler) { window->locked_pointer_motion_handler = handler; } void window_set_title(struct window *window, const char *title) { free(window->title); window->title = strdup(title); if (window->frame) { frame_set_title(window->frame->frame, title); widget_schedule_redraw(window->frame->widget); } if (window->xdg_toplevel) xdg_toplevel_set_title(window->xdg_toplevel, title); } const char * window_get_title(struct window *window) { return window->title; } void window_set_text_cursor_position(struct window *window, int32_t x, int32_t y) { struct text_cursor_position *text_cursor_position = window->display->text_cursor_position; if (!text_cursor_position) return; text_cursor_position_notify(text_cursor_position, window->main_surface->surface, wl_fixed_from_int(x), wl_fixed_from_int(y)); } static void relative_pointer_handle_motion(void *data, struct zwp_relative_pointer_v1 *pointer, uint32_t utime_hi, uint32_t utime_lo, wl_fixed_t dx, wl_fixed_t dy, wl_fixed_t dx_unaccel, wl_fixed_t dy_unaccel) { struct input *input = data; struct window *window = input->pointer_focus; uint32_t ms = (((uint64_t) utime_hi) << 32 | utime_lo) / 1000; if (window->locked_pointer_motion_handler && window->pointer_locked) { window->locked_pointer_motion_handler( window, input, ms, wl_fixed_to_double(dx), wl_fixed_to_double(dy), window->user_data); } } static const struct zwp_relative_pointer_v1_listener relative_pointer_listener = { relative_pointer_handle_motion, }; static void locked_pointer_locked(void *data, struct zwp_locked_pointer_v1 *locked_pointer) { struct input *input = data; struct window *window = input->locked_window; if (!window) return; window->pointer_locked = true; if (window->pointer_locked_handler) { window->pointer_locked_handler(window, input, window->user_data); } } static void locked_pointer_unlocked(void *data, struct zwp_locked_pointer_v1 *locked_pointer) { struct input *input = data; struct window *window = input->locked_window; if (!window) return; window_unlock_pointer(window); input->locked_window = NULL; if (window->pointer_unlocked_handler) { window->pointer_unlocked_handler(window, input, window->user_data); } } static const struct zwp_locked_pointer_v1_listener locked_pointer_listener = { locked_pointer_locked, locked_pointer_unlocked, }; int window_lock_pointer(struct window *window, struct input *input) { struct zwp_relative_pointer_manager_v1 *relative_pointer_manager = window->display->relative_pointer_manager; struct zwp_pointer_constraints_v1 *pointer_constraints = window->display->pointer_constraints; struct zwp_relative_pointer_v1 *relative_pointer; struct zwp_locked_pointer_v1 *locked_pointer; if (!window->display->relative_pointer_manager) return -1; if (!window->display->pointer_constraints) return -1; if (window->locked_pointer) return -1; if (window->confined_pointer) return -1; if (!input->pointer) return -1; relative_pointer = zwp_relative_pointer_manager_v1_get_relative_pointer( relative_pointer_manager, input->pointer); zwp_relative_pointer_v1_add_listener(relative_pointer, &relative_pointer_listener, input); locked_pointer = zwp_pointer_constraints_v1_lock_pointer(pointer_constraints, window->main_surface->surface, input->pointer, NULL, ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_ONESHOT); zwp_locked_pointer_v1_add_listener(locked_pointer, &locked_pointer_listener, input); window->locked_pointer = locked_pointer; window->relative_pointer = relative_pointer; input->locked_window = window; return 0; } void window_unlock_pointer(struct window *window) { if (!window->locked_pointer) return; zwp_locked_pointer_v1_destroy(window->locked_pointer); zwp_relative_pointer_v1_destroy(window->relative_pointer); window->locked_pointer = NULL; window->relative_pointer = NULL; window->pointer_locked = false; } void widget_set_locked_pointer_cursor_hint(struct widget *widget, float x, float y) { struct window *window = widget->window; if (!window->locked_pointer) return; zwp_locked_pointer_v1_set_cursor_position_hint(window->locked_pointer, wl_fixed_from_double(x), wl_fixed_from_double(y)); wl_surface_commit(window->main_surface->surface); } static void confined_pointer_confined(void *data, struct zwp_confined_pointer_v1 *confined_pointer) { struct input *input = data; struct window *window = input->confined_window; if (!window) return; window->confined = true; if (window->pointer_confined_handler) { window->pointer_confined_handler(window, input, window->user_data); } } static void confined_pointer_unconfined(void *data, struct zwp_confined_pointer_v1 *confined_pointer) { struct input *input = data; struct window *window = input->confined_window; if (!window) return; window_unconfine_pointer(window); window->confined = false; input->confined_window = NULL; if (window->pointer_unconfined_handler) { window->pointer_unconfined_handler(window, input, window->user_data); } } static const struct zwp_confined_pointer_v1_listener confined_pointer_listener = { confined_pointer_confined, confined_pointer_unconfined, }; int window_confine_pointer_to_rectangles(struct window *window, struct input *input, struct rectangle *rectangles, int num_rectangles) { struct zwp_pointer_constraints_v1 *pointer_constraints = window->display->pointer_constraints; struct zwp_confined_pointer_v1 *confined_pointer; struct wl_compositor *compositor = window->display->compositor; struct wl_region *region = NULL; int i; if (!window->display->pointer_constraints) return -1; if (window->locked_pointer) return -1; if (window->confined_pointer) return -1; if (!input->pointer) return -1; if (num_rectangles >= 1) { region = wl_compositor_create_region(compositor); for (i = 0; i < num_rectangles; i++) { wl_region_add(region, rectangles[i].x, rectangles[i].y, rectangles[i].width, rectangles[i].height); } } confined_pointer = zwp_pointer_constraints_v1_confine_pointer(pointer_constraints, window->main_surface->surface, input->pointer, region, ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_ONESHOT); if (region) wl_region_destroy(region); zwp_confined_pointer_v1_add_listener(confined_pointer, &confined_pointer_listener, input); window->confined_pointer = confined_pointer; window->confined_widget = NULL; input->confined_window = window; return 0; } void window_update_confine_rectangles(struct window *window, struct rectangle *rectangles, int num_rectangles) { struct wl_compositor *compositor = window->display->compositor; struct wl_region *region; int i; region = wl_compositor_create_region(compositor); for (i = 0; i < num_rectangles; i++) { wl_region_add(region, rectangles[i].x, rectangles[i].y, rectangles[i].width, rectangles[i].height); } zwp_confined_pointer_v1_set_region(window->confined_pointer, region); wl_region_destroy(region); } int window_confine_pointer_to_widget(struct window *window, struct widget *widget, struct input *input) { int ret; if (widget) { ret = window_confine_pointer_to_rectangles(window, input, &widget->allocation, 1); window->confined_widget = widget; return ret; } else { return window_confine_pointer_to_rectangles(window, input, NULL, 0); } } void window_unconfine_pointer(struct window *window) { if (!window->confined_pointer) return; zwp_confined_pointer_v1_destroy(window->confined_pointer); window->confined_pointer = NULL; window->confined = false; } static void surface_enter(void *data, struct wl_surface *wl_surface, struct wl_output *wl_output) { struct window *window = data; struct output *output; struct output *output_found = NULL; struct window_output *window_output; wl_list_for_each(output, &window->display->output_list, link) { if (output->output == wl_output) { output_found = output; break; } } if (!output_found) return; window_output = xmalloc(sizeof *window_output); window_output->output = output_found; wl_list_insert (&window->window_output_list, &window_output->link); if (window->output_handler) window->output_handler(window, output_found, 1, window->user_data); } static void surface_leave(void *data, struct wl_surface *wl_surface, struct wl_output *output) { struct window *window = data; struct window_output *window_output; struct window_output *window_output_found = NULL; wl_list_for_each(window_output, &window->window_output_list, link) { if (window_output->output->output == output) { window_output_found = window_output; break; } } if (window_output_found) { wl_list_remove(&window_output_found->link); if (window->output_handler) window->output_handler(window, window_output->output, 0, window->user_data); free(window_output_found); } } static const struct wl_surface_listener surface_listener = { surface_enter, surface_leave }; static struct surface * surface_create(struct window *window) { struct display *display = window->display; struct surface *surface; surface = xzalloc(sizeof *surface); surface->window = window; surface->surface = wl_compositor_create_surface(display->compositor); surface->buffer_scale = 1; wl_surface_add_listener(surface->surface, &surface_listener, window); wl_list_insert(&window->subsurface_list, &surface->link); surface->viewport = NULL; return surface; } static enum window_buffer_type get_preferred_buffer_type(struct display *display) { #ifdef HAVE_CAIRO_EGL if (display->argb_device && !getenv("TOYTOOLKIT_NO_EGL")) return WINDOW_BUFFER_TYPE_EGL_WINDOW; #endif return WINDOW_BUFFER_TYPE_SHM; } static struct window * window_create_internal(struct display *display, int custom) { struct window *window; struct surface *surface; window = xzalloc(sizeof *window); wl_list_init(&window->subsurface_list); window->display = display; surface = surface_create(window); window->main_surface = surface; assert(custom || display->xdg_shell); window->custom = custom; surface->buffer_type = get_preferred_buffer_type(display); wl_surface_set_user_data(surface->surface, window); wl_list_insert(display->window_list.prev, &window->link); wl_list_init(&window->redraw_task.link); wl_list_init (&window->window_output_list); return window; } struct window * window_create(struct display *display) { struct window *window; window = window_create_internal(display, 0); if (window->display->xdg_shell) { window->xdg_surface = xdg_wm_base_get_xdg_surface(window->display->xdg_shell, window->main_surface->surface); fail_on_null(window->xdg_surface, 0, __FILE__, __LINE__); xdg_surface_add_listener(window->xdg_surface, &xdg_surface_listener, window); window->xdg_toplevel = xdg_surface_get_toplevel(window->xdg_surface); fail_on_null(window->xdg_toplevel, 0, __FILE__, __LINE__); xdg_toplevel_add_listener(window->xdg_toplevel, &xdg_toplevel_listener, window); window_inhibit_redraw(window); wl_surface_commit(window->main_surface->surface); } return window; } struct window * window_create_custom(struct display *display) { return window_create_internal(display, 1); } void window_set_parent(struct window *window, struct window *parent_window) { window->parent = parent_window; window_sync_parent(window); } struct window * window_get_parent(struct window *window) { return window->parent; } static void menu_set_item(struct menu *menu, int sy) { int32_t x, y, width, height; int next; frame_interior(menu->frame, &x, &y, &width, &height); next = (sy - y) / 20; if (menu->current != next) { menu->current = next; widget_schedule_redraw(menu->widget); } } static int menu_motion_handler(struct widget *widget, struct input *input, uint32_t time, float x, float y, void *data) { struct menu *menu = data; if (widget == menu->widget) menu_set_item(data, y); return CURSOR_LEFT_PTR; } static int menu_enter_handler(struct widget *widget, struct input *input, float x, float y, void *data) { struct menu *menu = data; if (widget == menu->widget) menu_set_item(data, y); return CURSOR_LEFT_PTR; } static void menu_leave_handler(struct widget *widget, struct input *input, void *data) { struct menu *menu = data; if (widget == menu->widget) menu_set_item(data, -200); } static void menu_button_handler(struct widget *widget, struct input *input, uint32_t time, uint32_t button, enum wl_pointer_button_state state, void *data) { struct menu *menu = data; if (state == WL_POINTER_BUTTON_STATE_RELEASED && (menu->release_count > 0 || time - menu->time > 500)) { /* Either release after press-drag-release or * click-motion-click. */ menu->func(menu->user_data, input, menu->current); input_ungrab(menu->input); menu_destroy(menu); } else if (state == WL_POINTER_BUTTON_STATE_RELEASED) { menu->release_count++; } } static void menu_touch_up_handler(struct widget *widget, struct input *input, uint32_t serial, uint32_t time, int32_t id, void *data) { struct menu *menu = data; input_ungrab(input); menu_destroy(menu); } static void menu_redraw_handler(struct widget *widget, void *data) { cairo_t *cr; struct menu *menu = data; int32_t x, y, width, height, i; cr = widget_cairo_create(widget); frame_repaint(menu->frame, cr); frame_interior(menu->frame, &x, &y, &width, &height); theme_set_background_source(menu->window->display->theme, cr, THEME_FRAME_ACTIVE); cairo_rectangle(cr, x, y, width, height); cairo_fill(cr); cairo_select_font_face(cr, "sans-serif", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL); cairo_set_font_size(cr, 12); for (i = 0; i < menu->count; i++) { if (i == menu->current) { cairo_set_source_rgb(cr, 1.0, 1.0, 1.0); cairo_rectangle(cr, x, y + i * 20, width, 20); cairo_fill(cr); cairo_set_source_rgb(cr, 0.0, 0.0, 0.0); cairo_move_to(cr, x + 10, y + i * 20 + 16); cairo_show_text(cr, menu->entries[i]); } else { cairo_set_source_rgb(cr, 0.0, 0.0, 0.0); cairo_move_to(cr, x + 10, y + i * 20 + 16); cairo_show_text(cr, menu->entries[i]); } } cairo_destroy(cr); } static void xdg_popup_handle_configure(void *data, struct xdg_popup *xdg_popup, int32_t x, int32_t y, int32_t width, int32_t height) { } static void xdg_popup_handle_popup_done(void *data, struct xdg_popup *xdg_popup) { struct window *window = data; struct menu *menu = window->main_surface->widget->user_data; input_ungrab(menu->input); menu_destroy(menu); } static const struct xdg_popup_listener xdg_popup_listener = { xdg_popup_handle_configure, xdg_popup_handle_popup_done, }; static struct menu * create_menu(struct display *display, struct input *input, uint32_t time, menu_func_t func, const char **entries, int count, void *user_data) { struct window *window; struct menu *menu; menu = malloc(sizeof *menu); if (!menu) return NULL; window = window_create_internal(display, 0); if (!window) { free(menu); return NULL; } menu->window = window; menu->user_data = user_data; menu->widget = window_add_widget(menu->window, menu); menu->frame = frame_create(window->display->theme, 0, 0, FRAME_BUTTON_NONE, NULL, NULL); fail_on_null(menu->frame, 0, __FILE__, __LINE__); menu->entries = entries; menu->count = count; menu->release_count = 0; menu->current = -1; menu->time = time; menu->func = func; menu->input = input; input_ungrab(input); widget_set_redraw_handler(menu->widget, menu_redraw_handler); widget_set_enter_handler(menu->widget, menu_enter_handler); widget_set_leave_handler(menu->widget, menu_leave_handler); widget_set_motion_handler(menu->widget, menu_motion_handler); widget_set_button_handler(menu->widget, menu_button_handler); widget_set_touch_up_handler(menu->widget, menu_touch_up_handler); input_grab(input, menu->widget, 0); frame_resize_inside(menu->frame, 200, count * 20); frame_set_flag(menu->frame, FRAME_FLAG_ACTIVE); window_schedule_resize(window, frame_width(menu->frame), frame_height(menu->frame)); return menu; } static struct xdg_positioner * create_simple_positioner(struct display *display, int x, int y, int w, int h) { struct xdg_positioner *positioner; positioner = xdg_wm_base_create_positioner(display->xdg_shell); fail_on_null(positioner, 0, __FILE__, __LINE__); xdg_positioner_set_anchor_rect(positioner, x, y, 1, 1); xdg_positioner_set_size(positioner, w, h); xdg_positioner_set_anchor(positioner, XDG_POSITIONER_ANCHOR_TOP_LEFT); xdg_positioner_set_gravity(positioner, XDG_POSITIONER_ANCHOR_BOTTOM_RIGHT); return positioner; } void window_show_menu(struct display *display, struct input *input, uint32_t time, struct window *parent, int32_t x, int32_t y, menu_func_t func, const char **entries, int count) { struct menu *menu; struct window *window; int32_t ix, iy; struct rectangle parent_geometry; struct xdg_positioner *positioner; menu = create_menu(display, input, time, func, entries, count, parent); if (menu == NULL) return; window = menu->window; window_set_buffer_scale (menu->window, window_get_buffer_scale (parent)); window_set_buffer_transform (menu->window, window_get_buffer_transform (parent)); window->x = x; window->y = y; frame_interior(menu->frame, &ix, &iy, NULL, NULL); window_get_geometry(parent, &parent_geometry); if (!display->xdg_shell) return; window->xdg_surface = xdg_wm_base_get_xdg_surface(display->xdg_shell, window->main_surface->surface); fail_on_null(window->xdg_surface, 0, __FILE__, __LINE__); xdg_surface_add_listener(window->xdg_surface, &xdg_surface_listener, window); positioner = create_simple_positioner(display, window->x - (ix + parent_geometry.x), window->y - (iy + parent_geometry.y), frame_width(menu->frame), frame_height(menu->frame)); window->xdg_popup = xdg_surface_get_popup(window->xdg_surface, parent->xdg_surface, positioner); fail_on_null(window->xdg_popup, 0, __FILE__, __LINE__); xdg_positioner_destroy(positioner); xdg_popup_grab(window->xdg_popup, input->seat, display_get_serial(window->display)); xdg_popup_add_listener(window->xdg_popup, &xdg_popup_listener, window); window_inhibit_redraw(window); wl_surface_commit(window->main_surface->surface); } void window_set_buffer_type(struct window *window, enum window_buffer_type type) { window->main_surface->buffer_type = type; } enum window_buffer_type window_get_buffer_type(struct window *window) { return window->main_surface->buffer_type; } struct widget * window_add_subsurface(struct window *window, void *data, enum subsurface_mode default_mode) { struct widget *widget; struct surface *surface; struct wl_surface *parent; struct wl_subcompositor *subcompo = window->display->subcompositor; surface = surface_create(window); surface->buffer_type = window_get_buffer_type(window); widget = widget_create(window, surface, data); wl_list_init(&widget->link); surface->widget = widget; parent = window->main_surface->surface; surface->subsurface = wl_subcompositor_get_subsurface(subcompo, surface->surface, parent); surface->synchronized = 1; switch (default_mode) { case SUBSURFACE_SYNCHRONIZED: surface->synchronized_default = 1; break; case SUBSURFACE_DESYNCHRONIZED: surface->synchronized_default = 0; break; default: assert(!"bad enum subsurface_mode"); } window->resize_needed = 1; window_schedule_redraw(window); return widget; } static void display_handle_geometry(void *data, struct wl_output *wl_output, int x, int y, int physical_width, int physical_height, int subpixel, const char *make, const char *model, int transform) { struct output *output = data; output->allocation.x = x; output->allocation.y = y; output->transform = transform; if (output->make) free(output->make); output->make = strdup(make); if (output->model) free(output->model); output->model = strdup(model); } static void display_handle_done(void *data, struct wl_output *wl_output) { } static void display_handle_scale(void *data, struct wl_output *wl_output, int32_t scale) { struct output *output = data; output->scale = scale; } static void display_handle_mode(void *data, struct wl_output *wl_output, uint32_t flags, int width, int height, int refresh) { struct output *output = data; struct display *display = output->display; if (flags & WL_OUTPUT_MODE_CURRENT) { output->allocation.width = width; output->allocation.height = height; if (display->output_configure_handler) (*display->output_configure_handler)( output, display->user_data); } } static const struct wl_output_listener output_listener = { display_handle_geometry, display_handle_mode, display_handle_done, display_handle_scale }; static void display_add_output(struct display *d, uint32_t id) { struct output *output; output = xzalloc(sizeof *output); output->display = d; output->scale = 1; output->output = wl_registry_bind(d->registry, id, &wl_output_interface, 2); output->server_output_id = id; wl_list_insert(d->output_list.prev, &output->link); wl_output_add_listener(output->output, &output_listener, output); } static void output_destroy(struct output *output) { if (output->destroy_handler) (*output->destroy_handler)(output, output->user_data); wl_output_destroy(output->output); wl_list_remove(&output->link); free(output->make); free(output->model); free(output); } static void display_destroy_output(struct display *d, uint32_t id) { struct output *output; wl_list_for_each(output, &d->output_list, link) { if (output->server_output_id == id) { output_destroy(output); break; } } } void display_set_global_handler(struct display *display, display_global_handler_t handler) { struct global *global; display->global_handler = handler; if (!handler) return; wl_list_for_each(global, &display->global_list, link) display->global_handler(display, global->name, global->interface, global->version, display->user_data); } void display_set_global_handler_remove(struct display *display, display_global_handler_t remove_handler) { display->global_handler_remove = remove_handler; if (!remove_handler) return; } void display_set_output_configure_handler(struct display *display, display_output_handler_t handler) { struct output *output; display->output_configure_handler = handler; if (!handler) return; wl_list_for_each(output, &display->output_list, link) { if (output->allocation.width == 0 && output->allocation.height == 0) continue; (*display->output_configure_handler)(output, display->user_data); } } void output_set_user_data(struct output *output, void *data) { output->user_data = data; } void * output_get_user_data(struct output *output) { return output->user_data; } void output_set_destroy_handler(struct output *output, display_output_handler_t handler) { output->destroy_handler = handler; /* FIXME: implement this, once we have way to remove outputs */ } void output_get_allocation(struct output *output, struct rectangle *base) { struct rectangle allocation = output->allocation; switch (output->transform) { case WL_OUTPUT_TRANSFORM_90: case WL_OUTPUT_TRANSFORM_270: case WL_OUTPUT_TRANSFORM_FLIPPED_90: case WL_OUTPUT_TRANSFORM_FLIPPED_270: /* Swap width and height */ allocation.width = output->allocation.height; allocation.height = output->allocation.width; break; } *base = allocation; } struct wl_output * output_get_wl_output(struct output *output) { return output->output; } enum wl_output_transform output_get_transform(struct output *output) { return output->transform; } uint32_t output_get_scale(struct output *output) { return output->scale; } const char * output_get_make(struct output *output) { return output->make; } const char * output_get_model(struct output *output) { return output->model; } static void fini_xkb(struct input *input) { xkb_compose_state_unref(input->xkb.compose_state); xkb_compose_table_unref(input->xkb.compose_table); xkb_state_unref(input->xkb.state); xkb_keymap_unref(input->xkb.keymap); } static void display_add_input(struct display *d, uint32_t id, int display_seat_version) { struct input *input; int seat_version = MIN(display_seat_version, 7); input = xzalloc(sizeof *input); input->display = d; input->seat = wl_registry_bind(d->registry, id, &wl_seat_interface, seat_version); input->touch_focus = NULL; input->pointer_focus = NULL; input->keyboard_focus = NULL; input->seat_version = seat_version; wl_list_init(&input->touch_point_list); wl_list_insert(d->input_list.prev, &input->link); wl_seat_add_listener(input->seat, &seat_listener, input); wl_seat_set_user_data(input->seat, input); if (d->data_device_manager) { input->data_device = wl_data_device_manager_get_data_device(d->data_device_manager, input->seat); wl_data_device_add_listener(input->data_device, &data_device_listener, input); } toytimer_init(&input->cursor_timer, CLOCK_MONOTONIC, d, cursor_timer_func); set_repeat_info(input, 40, 400); toytimer_init(&input->repeat_timer, CLOCK_MONOTONIC, d, keyboard_repeat_func); } static void display_add_data_device(struct display *d, uint32_t id, int ddm_version) { struct input *input; d->data_device_manager_version = MIN(ddm_version, 3); d->data_device_manager = wl_registry_bind(d->registry, id, &wl_data_device_manager_interface, d->data_device_manager_version); wl_list_for_each(input, &d->input_list, link) { if (!input->data_device) { input->data_device = wl_data_device_manager_get_data_device(d->data_device_manager, input->seat); wl_data_device_add_listener(input->data_device, &data_device_listener, input); } } } static void input_destroy(struct input *input) { input_remove_keyboard_focus(input); input_remove_pointer_focus(input); if (input->drag_offer) data_offer_destroy(input->drag_offer); if (input->selection_offer) data_offer_destroy(input->selection_offer); if (input->data_device) { if (input->display->data_device_manager_version >= 2) wl_data_device_release(input->data_device); else wl_data_device_destroy(input->data_device); } if (input->seat_version >= WL_POINTER_RELEASE_SINCE_VERSION) { if (input->touch) wl_touch_release(input->touch); if (input->pointer) wl_pointer_release(input->pointer); if (input->keyboard) wl_keyboard_release(input->keyboard); } else { if (input->touch) wl_touch_destroy(input->touch); if (input->pointer) wl_pointer_destroy(input->pointer); if (input->keyboard) wl_keyboard_destroy(input->keyboard); } fini_xkb(input); if (input->pointer_surface) wl_surface_destroy(input->pointer_surface); wl_list_remove(&input->link); wl_seat_destroy(input->seat); toytimer_fini(&input->repeat_timer); toytimer_fini(&input->cursor_timer); free(input); } static void xdg_wm_base_ping(void *data, struct xdg_wm_base *shell, uint32_t serial) { xdg_wm_base_pong(shell, serial); } static const struct xdg_wm_base_listener wm_base_listener = { xdg_wm_base_ping, }; static void global_destroy(struct display *disp, struct global *g) { if (disp->global_handler_remove) { disp->global_handler_remove(disp, g->name, g->interface, g->version, disp->user_data); } wl_list_remove(&g->link); free(g->interface); free(g); } static void registry_handle_global(void *data, struct wl_registry *registry, uint32_t id, const char *interface, uint32_t version) { struct display *d = data; struct global *global; global = xmalloc(sizeof *global); global->name = id; global->interface = strdup(interface); global->version = version; wl_list_insert(d->global_list.prev, &global->link); if (strcmp(interface, "wl_compositor") == 0) { d->compositor = wl_registry_bind(registry, id, &wl_compositor_interface, 3); } else if (strcmp(interface, "wl_output") == 0) { display_add_output(d, id); } else if (strcmp(interface, "wl_seat") == 0) { display_add_input(d, id, version); } else if (strcmp(interface, "zwp_relative_pointer_manager_v1") == 0 && version == ZWP_RELATIVE_POINTER_MANAGER_V1_VERSION) { d->relative_pointer_manager = wl_registry_bind(registry, id, &zwp_relative_pointer_manager_v1_interface, 1); } else if (strcmp(interface, "zwp_pointer_constraints_v1") == 0 && version == ZWP_POINTER_CONSTRAINTS_V1_VERSION) { d->pointer_constraints = wl_registry_bind(registry, id, &zwp_pointer_constraints_v1_interface, 1); } else if (strcmp(interface, "wl_shm") == 0) { d->shm = wl_registry_bind(registry, id, &wl_shm_interface, 1); } else if (strcmp(interface, "wl_data_device_manager") == 0) { display_add_data_device(d, id, version); } else if (strcmp(interface, "xdg_wm_base") == 0) { d->xdg_shell = wl_registry_bind(registry, id, &xdg_wm_base_interface, 1); xdg_wm_base_add_listener(d->xdg_shell, &wm_base_listener, d); } else if (strcmp(interface, "text_cursor_position") == 0) { d->text_cursor_position = wl_registry_bind(registry, id, &text_cursor_position_interface, 1); } else if (strcmp(interface, "wl_subcompositor") == 0) { d->subcompositor = wl_registry_bind(registry, id, &wl_subcompositor_interface, 1); } else if (!strcmp(interface, "wp_viewporter")) { d->viewporter = wl_registry_bind(registry, id, &wp_viewporter_interface, 1); } if (d->global_handler) d->global_handler(d, id, interface, version, d->user_data); } static void registry_handle_global_remove(void *data, struct wl_registry *registry, uint32_t name) { struct display *d = data; struct global *global; struct global *tmp; wl_list_for_each_safe(global, tmp, &d->global_list, link) { if (global->name != name) continue; if (strcmp(global->interface, "wl_output") == 0) display_destroy_output(d, name); global_destroy(d, global); } } void * display_bind(struct display *display, uint32_t name, const struct wl_interface *interface, uint32_t version) { return wl_registry_bind(display->registry, name, interface, version); } static const struct wl_registry_listener registry_listener = { registry_handle_global, registry_handle_global_remove }; #ifdef HAVE_CAIRO_EGL static int init_egl(struct display *d) { EGLint major, minor; EGLint n; #ifdef USE_CAIRO_GLESV2 # define GL_BIT EGL_OPENGL_ES2_BIT #else # define GL_BIT EGL_OPENGL_BIT #endif static const EGLint argb_cfg_attribs[] = { EGL_SURFACE_TYPE, EGL_WINDOW_BIT, EGL_RED_SIZE, 1, EGL_GREEN_SIZE, 1, EGL_BLUE_SIZE, 1, EGL_ALPHA_SIZE, 1, EGL_DEPTH_SIZE, 1, EGL_RENDERABLE_TYPE, GL_BIT, EGL_NONE }; #ifdef USE_CAIRO_GLESV2 static const EGLint context_attribs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE }; EGLint api = EGL_OPENGL_ES_API; #else EGLint *context_attribs = NULL; EGLint api = EGL_OPENGL_API; #endif d->dpy = weston_platform_get_egl_display(EGL_PLATFORM_WAYLAND_KHR, d->display, NULL); if (!eglInitialize(d->dpy, &major, &minor)) { fprintf(stderr, "failed to initialize EGL\n"); return -1; } if (!eglBindAPI(api)) { fprintf(stderr, "failed to bind EGL client API\n"); return -1; } if (!eglChooseConfig(d->dpy, argb_cfg_attribs, &d->argb_config, 1, &n) || n != 1) { fprintf(stderr, "failed to choose argb EGL config\n"); return -1; } d->argb_ctx = eglCreateContext(d->dpy, d->argb_config, EGL_NO_CONTEXT, context_attribs); if (d->argb_ctx == NULL) { fprintf(stderr, "failed to create EGL context\n"); return -1; } d->argb_device = cairo_egl_device_create(d->dpy, d->argb_ctx); if (cairo_device_status(d->argb_device) != CAIRO_STATUS_SUCCESS) { fprintf(stderr, "failed to get cairo EGL argb device\n"); return -1; } return 0; } static void fini_egl(struct display *display) { cairo_device_destroy(display->argb_device); eglMakeCurrent(display->dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); eglTerminate(display->dpy); eglReleaseThread(); } #endif static void init_dummy_surface(struct display *display) { int len; void *data; len = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, 1); data = xmalloc(len); display->dummy_surface = cairo_image_surface_create_for_data(data, CAIRO_FORMAT_ARGB32, 1, 1, len); display->dummy_surface_data = data; } static void handle_display_data(struct task *task, uint32_t events) { struct display *display = container_of(task, struct display, display_task); struct epoll_event ep; int ret; display->display_fd_events = events; if (events & EPOLLERR || events & EPOLLHUP) { display_exit(display); return; } if (events & EPOLLIN) { ret = wl_display_dispatch(display->display); if (ret == -1) { display_exit(display); return; } } if (events & EPOLLOUT) { ret = wl_display_flush(display->display); if (ret == 0) { ep.events = EPOLLIN | EPOLLERR | EPOLLHUP; ep.data.ptr = &display->display_task; epoll_ctl(display->epoll_fd, EPOLL_CTL_MOD, display->display_fd, &ep); } else if (ret == -1 && errno != EAGAIN) { display_exit(display); return; } } } static void log_handler(const char *format, va_list args) { vfprintf(stderr, format, args); } struct display * display_create(int *argc, char *argv[]) { struct display *d; wl_log_set_handler_client(log_handler); d = zalloc(sizeof *d); if (d == NULL) return NULL; wl_list_init(&d->window_list); wl_list_init(&d->deferred_list); wl_list_init(&d->input_list); wl_list_init(&d->output_list); wl_list_init(&d->global_list); d->display = wl_display_connect(NULL); if (d->display == NULL) { fprintf(stderr, "failed to connect to Wayland display: %s\n", strerror(errno)); free(d); return NULL; } d->xkb_context = xkb_context_new(XKB_CONTEXT_NO_FLAGS); if (d->xkb_context == NULL) { fprintf(stderr, "Failed to create XKB context\n"); free(d); return NULL; } d->epoll_fd = os_epoll_create_cloexec(); d->display_fd = wl_display_get_fd(d->display); d->display_task.run = handle_display_data; display_watch_fd(d, d->display_fd, EPOLLIN | EPOLLERR | EPOLLHUP, &d->display_task); d->registry = wl_display_get_registry(d->display); wl_registry_add_listener(d->registry, ®istry_listener, d); if (wl_display_roundtrip(d->display) < 0) { fprintf(stderr, "Failed to process Wayland connection: %s\n", strerror(errno)); display_destroy(d); return NULL; } #ifdef HAVE_CAIRO_EGL if (init_egl(d) < 0) fprintf(stderr, "EGL does not seem to work, " "falling back to software rendering and wl_shm.\n"); #endif create_cursors(d); d->theme = theme_create(); init_dummy_surface(d); return d; } static void display_destroy_outputs(struct display *display) { struct output *tmp; struct output *output; wl_list_for_each_safe(output, tmp, &display->output_list, link) output_destroy(output); } static void display_destroy_inputs(struct display *display) { struct input *tmp; struct input *input; wl_list_for_each_safe(input, tmp, &display->input_list, link) input_destroy(input); } void display_destroy(struct display *display) { struct global *global, *tmp; if (!wl_list_empty(&display->window_list)) fprintf(stderr, "toytoolkit warning: %d windows exist.\n", wl_list_length(&display->window_list)); if (!wl_list_empty(&display->deferred_list)) fprintf(stderr, "toytoolkit warning: deferred tasks exist.\n"); if (display->dummy_surface) cairo_surface_destroy(display->dummy_surface); if (display->dummy_surface_data) free(display->dummy_surface_data); display_destroy_outputs(display); display_destroy_inputs(display); wl_list_for_each_safe(global, tmp, &display->global_list, link) global_destroy(display, global); xkb_context_unref(display->xkb_context); if (display->theme) theme_destroy(display->theme); destroy_cursors(display); #ifdef HAVE_CAIRO_EGL if (display->argb_device) fini_egl(display); #endif if (display->relative_pointer_manager) zwp_relative_pointer_manager_v1_destroy(display->relative_pointer_manager); if (display->pointer_constraints) zwp_pointer_constraints_v1_destroy(display->pointer_constraints); if (display->viewporter) wp_viewporter_destroy(display->viewporter); if (display->subcompositor) wl_subcompositor_destroy(display->subcompositor); if (display->xdg_shell) xdg_wm_base_destroy(display->xdg_shell); if (display->shm) wl_shm_destroy(display->shm); if (display->data_device_manager) wl_data_device_manager_destroy(display->data_device_manager); if (display->compositor) wl_compositor_destroy(display->compositor); wl_registry_destroy(display->registry); close(display->epoll_fd); if (!(display->display_fd_events & EPOLLERR) && !(display->display_fd_events & EPOLLHUP)) wl_display_flush(display->display); wl_display_disconnect(display->display); free(display); } void display_set_user_data(struct display *display, void *data) { display->user_data = data; } void * display_get_user_data(struct display *display) { return display->user_data; } struct wl_display * display_get_display(struct display *display) { return display->display; } int display_has_subcompositor(struct display *display) { if (display->subcompositor) return 1; wl_display_roundtrip(display->display); return display->subcompositor != NULL; } cairo_device_t * display_get_cairo_device(struct display *display) { return display->argb_device; } struct output * display_get_output(struct display *display) { if (wl_list_empty(&display->output_list)) return NULL; return container_of(display->output_list.next, struct output, link); } struct wl_compositor * display_get_compositor(struct display *display) { return display->compositor; } uint32_t display_get_serial(struct display *display) { return display->serial; } EGLDisplay display_get_egl_display(struct display *d) { return d->dpy; } struct wl_data_source * display_create_data_source(struct display *display) { if (display->data_device_manager) return wl_data_device_manager_create_data_source(display->data_device_manager); else return NULL; } EGLConfig display_get_argb_egl_config(struct display *d) { return d->argb_config; } int display_acquire_window_surface(struct display *display, struct window *window, EGLContext ctx) { struct surface *surface = window->main_surface; if (surface->buffer_type != WINDOW_BUFFER_TYPE_EGL_WINDOW) return -1; widget_get_cairo_surface(window->main_surface->widget); return surface->toysurface->acquire(surface->toysurface, ctx); } void display_release_window_surface(struct display *display, struct window *window) { struct surface *surface = window->main_surface; if (surface->buffer_type != WINDOW_BUFFER_TYPE_EGL_WINDOW) return; surface->toysurface->release(surface->toysurface); } void display_defer(struct display *display, struct task *task) { wl_list_insert(&display->deferred_list, &task->link); } void display_watch_fd(struct display *display, int fd, uint32_t events, struct task *task) { struct epoll_event ep; ep.events = events; ep.data.ptr = task; epoll_ctl(display->epoll_fd, EPOLL_CTL_ADD, fd, &ep); } void display_unwatch_fd(struct display *display, int fd) { epoll_ctl(display->epoll_fd, EPOLL_CTL_DEL, fd, NULL); } void display_run(struct display *display) { struct task *task; struct epoll_event ep[16]; int i, count, ret; display->running = 1; while (1) { while (!wl_list_empty(&display->deferred_list)) { task = container_of(display->deferred_list.prev, struct task, link); wl_list_remove(&task->link); task->run(task, 0); } wl_display_dispatch_pending(display->display); if (!display->running) break; ret = wl_display_flush(display->display); if (ret < 0 && errno == EAGAIN) { ep[0].events = EPOLLIN | EPOLLOUT | EPOLLERR | EPOLLHUP; ep[0].data.ptr = &display->display_task; epoll_ctl(display->epoll_fd, EPOLL_CTL_MOD, display->display_fd, &ep[0]); } else if (ret < 0) { break; } count = epoll_wait(display->epoll_fd, ep, ARRAY_LENGTH(ep), -1); for (i = 0; i < count; i++) { task = ep[i].data.ptr; task->run(task, ep[i].events); } } } void display_exit(struct display *display) { display->running = 0; } int display_get_data_device_manager_version(struct display *display) { return display->data_device_manager_version; } void keysym_modifiers_add(struct wl_array *modifiers_map, const char *name) { size_t len = strlen(name) + 1; char *p; p = wl_array_add(modifiers_map, len); if (p == NULL) return; strncpy(p, name, len); } static xkb_mod_index_t keysym_modifiers_get_index(struct wl_array *modifiers_map, const char *name) { xkb_mod_index_t index = 0; char *p = modifiers_map->data; while ((const char *)p < (const char *)(modifiers_map->data + modifiers_map->size)) { if (strcmp(p, name) == 0) return index; index++; p += strlen(p) + 1; } return XKB_MOD_INVALID; } xkb_mod_mask_t keysym_modifiers_get_mask(struct wl_array *modifiers_map, const char *name) { xkb_mod_index_t index = keysym_modifiers_get_index(modifiers_map, name); if (index == XKB_MOD_INVALID) return XKB_MOD_INVALID; return 1 << index; } static void toytimer_fire(struct task *tsk, uint32_t events) { uint64_t e; struct toytimer *tt; tt = container_of(tsk, struct toytimer, tsk); if (events != EPOLLIN) fprintf(stderr, "unexpected timerfd events %x\n", events); if (!(events & EPOLLIN)) return; if (read(tt->fd, &e, sizeof e) != sizeof e) { /* If we change the timer between the fd becoming * readable and getting here, there'll be nothing to * read and we get EAGAIN. */ if (errno != EAGAIN) fprintf(stderr, "timer read failed: %s\n", strerror(errno)); return; } tt->callback(tt); } void toytimer_init(struct toytimer *tt, clockid_t clock, struct display *display, toytimer_cb callback) { memset(tt, 0, sizeof *tt); tt->fd = timerfd_create(clock, TFD_CLOEXEC | TFD_NONBLOCK); if (tt->fd == -1) { fprintf(stderr, "creating timer failed: %s\n", strerror(errno)); abort(); } tt->display = display; tt->callback = callback; tt->tsk.run = toytimer_fire; display_watch_fd(display, tt->fd, EPOLLIN, &tt->tsk); } void toytimer_fini(struct toytimer *tt) { display_unwatch_fd(tt->display, tt->fd); close(tt->fd); tt->fd = -1; } void toytimer_arm(struct toytimer *tt, const struct itimerspec *its) { int ret; ret = timerfd_settime(tt->fd, 0, its, NULL); if (ret < 0) { fprintf(stderr, "timer setup failed: %s\n", strerror(errno)); abort(); } } #define USEC_PER_SEC 1000000 void toytimer_arm_once_usec(struct toytimer *tt, uint32_t usec) { struct itimerspec its; its.it_interval.tv_sec = 0; its.it_interval.tv_nsec = 0; its.it_value.tv_sec = usec / USEC_PER_SEC; its.it_value.tv_nsec = (usec % USEC_PER_SEC) * 1000; toytimer_arm(tt, &its); } void toytimer_disarm(struct toytimer *tt) { struct itimerspec its = {}; toytimer_arm(tt, &its); }