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weston/clients/desktop-shell.c

645 lines
16 KiB

/*
* Copyright © 2011 Kristian Høgsberg
* Copyright © 2011 Collabora, Ltd.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <math.h>
#include <cairo.h>
#include <sys/wait.h>
#include <linux/input.h>
#include <wayland-client.h>
#include "cairo-util.h"
#include "window.h"
#include "../shared/configparser.h"
#include "desktop-shell-client-protocol.h"
struct desktop {
struct display *display;
struct desktop_shell *shell;
const char *background_path;
struct unlock_dialog *unlock_dialog;
struct task unlock_task;
struct wl_list outputs;
};
struct surface {
void (*configure)(void *data,
struct desktop_shell *desktop_shell,
uint32_t time, uint32_t edges,
struct window *window,
int32_t width, int32_t height);
};
struct panel {
struct surface base;
struct window *window;
struct window *menu;
};
struct background {
struct surface base;
struct window *window;
};
struct output {
struct wl_output *output;
struct wl_list link;
struct panel *panel;
struct background *background;
};
struct panel_item {
struct item *item;
struct panel *panel;
cairo_surface_t *icon;
int pressed;
const char *path;
};
struct unlock_dialog {
struct window *window;
struct item *button;
int closing;
struct desktop *desktop;
};
static char *key_background_image;
static uint32_t key_panel_color;
static char *key_launcher_icon;
static char *key_launcher_path;
static void launcher_section_done(void *data);
static int key_locking = 1;
static const struct config_key shell_config_keys[] = {
{ "background-image", CONFIG_KEY_STRING, &key_background_image },
{ "panel-color", CONFIG_KEY_INTEGER, &key_panel_color },
{ "locking", CONFIG_KEY_BOOLEAN, &key_locking },
};
static const struct config_key launcher_config_keys[] = {
{ "icon", CONFIG_KEY_STRING, &key_launcher_icon },
{ "path", CONFIG_KEY_STRING, &key_launcher_path },
};
static const struct config_section config_sections[] = {
{ "wayland-desktop-shell",
shell_config_keys, ARRAY_LENGTH(shell_config_keys) },
{ "launcher",
launcher_config_keys, ARRAY_LENGTH(launcher_config_keys),
launcher_section_done }
};
static void
sigchild_handler(int s)
{
int status;
pid_t pid;
while (pid = waitpid(-1, &status, WNOHANG), pid > 0)
fprintf(stderr, "child %d exited\n", pid);
}
static void
show_menu(struct panel *panel, struct input *input)
{
int32_t x, y, width = 200, height = 200;
struct display *display;
input_get_position(input, &x, &y);
display = window_get_display(panel->window);
panel->menu = window_create_transient(display, panel->window,
x - 10, y - 10, width, height);
window_set_user_data(panel->menu, panel);
window_draw(panel->menu);
window_flush(panel->menu);
}
static void
panel_activate_item(struct panel *panel, struct panel_item *item)
{
pid_t pid;
pid = fork();
if (pid < 0) {
fprintf(stderr, "fork failed: %m\n");
return;
}
if (pid)
return;
if (execl(item->path, item->path, NULL) < 0) {
fprintf(stderr, "execl failed: %m\n");
exit(1);
}
}
static void
panel_draw_item(struct item *item, void *data)
{
cairo_t *cr = data;
struct panel_item *pi;
int x, y, width, height;
double dx, dy;
pi = item_get_user_data(item);
width = cairo_image_surface_get_width(pi->icon);
height = cairo_image_surface_get_height(pi->icon);
x = 0;
y = -height / 2;
if (pi->pressed) {
x++;
y++;
}
dx = x;
dy = y;
cairo_user_to_device(cr, &dx, &dy);
item_set_allocation(item, dx, dy, width, height);
cairo_set_source_surface(cr, pi->icon, x, y);
cairo_paint(cr);
if (window_get_focus_item(pi->panel->window) == item) {
cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 0.4);
cairo_mask_surface(cr, pi->icon, x, y);
}
cairo_translate(cr, width + 10, 0);
}
static void
set_hex_color(cairo_t *cr, uint32_t color)
{
cairo_set_source_rgba(cr,
((color >> 16) & 0xff) / 255.0,
((color >> 8) & 0xff) / 255.0,
((color >> 0) & 0xff) / 255.0,
((color >> 24) & 0xff) / 255.0);
}
static void
panel_redraw_handler(struct window *window, void *data)
{
cairo_surface_t *surface;
cairo_t *cr;
window_draw(window);
surface = window_get_surface(window);
cr = cairo_create(surface);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
set_hex_color(cr, key_panel_color);
cairo_paint(cr);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_translate(cr, 10, 32 / 2);
window_for_each_item(window, panel_draw_item, cr);
cairo_destroy(cr);
cairo_surface_destroy(surface);
window_flush(window);
}
static void
panel_item_focus_handler(struct window *window,
struct item *focus, void *data)
{
window_schedule_redraw(window);
}
static void
panel_button_handler(struct window *window,
struct input *input, uint32_t time,
int button, int state, void *data)
{
struct panel *panel = data;
struct panel_item *pi;
struct item *focus;
focus = window_get_focus_item(panel->window);
if (focus && button == BTN_LEFT) {
pi = item_get_user_data(focus);
window_schedule_redraw(panel->window);
if (state == 0)
panel_activate_item(panel, pi);
} else if (button == BTN_RIGHT) {
if (state)
show_menu(panel, input);
else
window_destroy(panel->menu);
}
}
static void
panel_configure(void *data,
struct desktop_shell *desktop_shell,
uint32_t time, uint32_t edges,
struct window *window,
int32_t width, int32_t height)
{
window_set_child_size(window, width, 32);
window_schedule_redraw(window);
}
static struct panel *
panel_create(struct display *display)
{
struct panel *panel;
panel = malloc(sizeof *panel);
memset(panel, 0, sizeof *panel);
panel->base.configure = panel_configure;
panel->window = window_create(display, 0, 0);
window_set_title(panel->window, "panel");
window_set_decoration(panel->window, 0);
window_set_redraw_handler(panel->window, panel_redraw_handler);
window_set_custom(panel->window);
window_set_user_data(panel->window, panel);
window_set_button_handler(panel->window, panel_button_handler);
window_set_item_focus_handler(panel->window, panel_item_focus_handler);
return panel;
}
static void
panel_add_item(struct panel *panel, const char *icon, const char *path)
{
struct panel_item *item;
item = malloc(sizeof *item);
memset(item, 0, sizeof *item);
item->icon = cairo_image_surface_create_from_png(icon);
item->path = strdup(path);
item->panel = panel;
window_add_item(panel->window, item);
}
static void
background_draw(struct window *window, int width, int height, const char *path)
{
cairo_surface_t *surface, *image;
cairo_pattern_t *pattern;
cairo_matrix_t matrix;
cairo_t *cr;
double sx, sy;
window_set_child_size(window, width, height);
window_draw(window);
surface = window_get_surface(window);
cr = cairo_create(surface);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 0.0, 0.0, 0.2, 1.0);
cairo_paint(cr);
if (path) {
image = load_jpeg(path);
pattern = cairo_pattern_create_for_surface(image);
sx = (double) cairo_image_surface_get_width(image) / width;
sy = (double) cairo_image_surface_get_height(image) / height;
cairo_matrix_init_scale(&matrix, sx, sy);
cairo_pattern_set_matrix(pattern, &matrix);
cairo_set_source(cr, pattern);
cairo_pattern_destroy (pattern);
cairo_paint(cr);
cairo_surface_destroy(image);
}
cairo_destroy(cr);
cairo_surface_destroy(surface);
window_flush(window);
}
static void
background_configure(void *data,
struct desktop_shell *desktop_shell,
uint32_t time, uint32_t edges,
struct window *window,
int32_t width, int32_t height)
{
struct desktop *desktop = data;
background_draw(window, width, height, desktop->background_path);
}
static void
unlock_dialog_draw(struct unlock_dialog *dialog)
{
struct rectangle allocation;
cairo_t *cr;
cairo_surface_t *surface;
cairo_pattern_t *pat;
double cx, cy, r, f;
window_draw(dialog->window);
surface = window_get_surface(dialog->window);
cr = cairo_create(surface);
window_get_child_allocation(dialog->window, &allocation);
cairo_rectangle(cr, allocation.x, allocation.y,
allocation.width, allocation.height);
cairo_clip(cr);
cairo_push_group(cr);
cairo_translate(cr, allocation.x, allocation.y);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 0, 0, 0, 0.6);
cairo_paint(cr);
if (window_get_focus_item(dialog->window) == dialog->button)
f = 1.0;
else
f = 0.7;
cx = allocation.width / 2.0;
cy = allocation.height / 2.0;
r = (cx < cy ? cx : cy) * 0.4;
pat = cairo_pattern_create_radial(cx, cy, r * 0.7, cx, cy, r);
cairo_pattern_add_color_stop_rgb(pat, 0.0, 0, 0.86 * f, 0);
cairo_pattern_add_color_stop_rgb(pat, 0.85, 0.2 * f, f, 0.2 * f);
cairo_pattern_add_color_stop_rgb(pat, 1.0, 0, 0.86 * f, 0);
cairo_set_source(cr, pat);
cairo_arc(cr, cx, cy, r, 0.0, 2.0 * M_PI);
cairo_fill(cr);
item_set_allocation(dialog->button,
allocation.x + cx - r,
allocation.y + cy - r, 2 * r, 2 * r);
cairo_pattern_destroy(pat);
cairo_pop_group_to_source(cr);
cairo_paint(cr);
cairo_destroy(cr);
window_flush(dialog->window);
cairo_surface_destroy(surface);
}
static void
unlock_dialog_button_handler(struct window *window,
struct input *input, uint32_t time,
int button, int state, void *data)
{
struct unlock_dialog *dialog = data;
struct desktop *desktop = dialog->desktop;
struct item *focus;
focus = window_get_focus_item(dialog->window);
if (focus && button == BTN_LEFT) {
if (state == 0 && !dialog->closing) {
display_defer(desktop->display, &desktop->unlock_task);
dialog->closing = 1;
}
}
}
static void
unlock_dialog_redraw_handler(struct window *window, void *data)
{
struct unlock_dialog *dialog = data;
unlock_dialog_draw(dialog);
}
static void
unlock_dialog_keyboard_focus_handler(struct window *window,
struct input *device, void *data)
{
window_schedule_redraw(window);
}
static void
unlock_dialog_item_focus_handler(struct window *window,
struct item *focus, void *data)
{
window_schedule_redraw(window);
}
static struct unlock_dialog *
unlock_dialog_create(struct desktop *desktop)
{
struct display *display = desktop->display;
struct unlock_dialog *dialog;
dialog = malloc(sizeof *dialog);
if (!dialog)
return NULL;
memset(dialog, 0, sizeof *dialog);
dialog->window = window_create(display, 260, 230);
window_set_title(dialog->window, "Unlock your desktop");
window_set_custom(dialog->window);
window_set_user_data(dialog->window, dialog);
window_set_redraw_handler(dialog->window, unlock_dialog_redraw_handler);
window_set_keyboard_focus_handler(dialog->window,
unlock_dialog_keyboard_focus_handler);
window_set_button_handler(dialog->window, unlock_dialog_button_handler);
window_set_item_focus_handler(dialog->window,
unlock_dialog_item_focus_handler);
dialog->button = window_add_item(dialog->window, NULL);
desktop_shell_set_lock_surface(desktop->shell,
window_get_wl_shell_surface(dialog->window));
unlock_dialog_draw(dialog);
return dialog;
}
static void
unlock_dialog_destroy(struct unlock_dialog *dialog)
{
window_destroy(dialog->window);
free(dialog);
}
static void
unlock_dialog_finish(struct task *task, uint32_t events)
{
struct desktop *desktop =
container_of(task, struct desktop, unlock_task);
desktop_shell_unlock(desktop->shell);
unlock_dialog_destroy(desktop->unlock_dialog);
desktop->unlock_dialog = NULL;
}
static void
desktop_shell_configure(void *data,
struct desktop_shell *desktop_shell,
uint32_t time, uint32_t edges,
struct wl_shell_surface *shell_surface,
int32_t width, int32_t height)
{
struct window *window = wl_shell_surface_get_user_data(shell_surface);
struct surface *s = window_get_user_data(window);
s->configure(data, desktop_shell, time, edges, window, width, height);
}
static void
desktop_shell_prepare_lock_surface(void *data,
struct desktop_shell *desktop_shell)
{
struct desktop *desktop = data;
if (!key_locking) {
desktop_shell_unlock(desktop->shell);
return;
}
if (!desktop->unlock_dialog) {
desktop->unlock_dialog = unlock_dialog_create(desktop);
desktop->unlock_dialog->desktop = desktop;
}
}
static const struct desktop_shell_listener listener = {
desktop_shell_configure,
desktop_shell_prepare_lock_surface
};
static struct background *
background_create(struct desktop *desktop)
{
struct background *background;
background = malloc(sizeof *background);
memset(background, 0, sizeof *background);
background->base.configure = background_configure;
background->window = window_create(desktop->display, 0, 0);
window_set_decoration(background->window, 0);
window_set_custom(background->window);
window_set_user_data(background->window, background);
return background;
}
static void
create_output(struct desktop *desktop, uint32_t id)
{
struct output *output;
output = calloc(1, sizeof *output);
if (!output)
return;
output->output = wl_display_bind(display_get_display(desktop->display),
id, &wl_output_interface);
wl_list_insert(&desktop->outputs, &output->link);
}
static void
global_handler(struct wl_display *display, uint32_t id,
const char *interface, uint32_t version, void *data)
{
struct desktop *desktop = data;
if (!strcmp(interface, "desktop_shell")) {
desktop->shell =
wl_display_bind(display, id, &desktop_shell_interface);
desktop_shell_add_listener(desktop->shell, &listener, desktop);
} else if (!strcmp(interface, "wl_output")) {
create_output(desktop, id);
}
}
static void
launcher_section_done(void *data)
{
struct desktop *desktop = data;
struct output *output;
if (key_launcher_icon == NULL || key_launcher_path == NULL) {
fprintf(stderr, "invalid launcher section\n");
return;
}
wl_list_for_each(output, &desktop->outputs, link)
panel_add_item(output->panel,
key_launcher_icon, key_launcher_path);
free(key_launcher_icon);
key_launcher_icon = NULL;
free(key_launcher_path);
key_launcher_path = NULL;
}
int main(int argc, char *argv[])
{
struct desktop desktop = { 0 };
char *config_file;
struct output *output;
desktop.unlock_task.run = unlock_dialog_finish;
wl_list_init(&desktop.outputs);
desktop.display = display_create(&argc, &argv, NULL);
if (desktop.display == NULL) {
fprintf(stderr, "failed to create display: %m\n");
return -1;
}
wl_display_add_global_listener(display_get_display(desktop.display),
global_handler, &desktop);
wl_list_for_each(output, &desktop.outputs, link) {
struct wl_shell_surface *s;
output->panel = panel_create(desktop.display);
s = window_get_wl_shell_surface(output->panel->window);
desktop_shell_set_panel(desktop.shell, output->output, s);
output->background = background_create(&desktop);
s = window_get_wl_shell_surface(output->background->window);
desktop_shell_set_background(desktop.shell, output->output, s);
}
config_file = config_file_path("wayland-desktop-shell.ini");
parse_config_file(config_file,
config_sections, ARRAY_LENGTH(config_sections),
&desktop);
free(config_file);
desktop.background_path = key_background_image;
signal(SIGCHLD, sigchild_handler);
display_run(desktop.display);
return 0;
}