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weston/clients/desktop-shell.c

744 lines
19 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/config-parser.h"
#include "desktop-shell-client-protocol.h"
struct desktop {
struct display *display;
struct desktop_shell *shell;
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 widget *widget;
struct wl_list launcher_list;
};
struct background {
struct surface base;
struct window *window;
struct widget *widget;
};
struct output {
struct wl_output *output;
struct wl_list link;
struct panel *panel;
struct background *background;
};
struct panel_launcher {
struct widget *widget;
struct panel *panel;
cairo_surface_t *icon;
int focused, pressed;
const char *path;
struct wl_list link;
};
struct unlock_dialog {
struct window *window;
struct widget *widget;
struct widget *button;
int button_focused;
int closing;
struct desktop *desktop;
};
static char *key_background_image = DATADIR "/weston/pattern.png";
static char *key_background_type = "tile";
static uint32_t key_panel_color = 0xaa000000;
static uint32_t key_background_color = 0xff002244;
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 },
{ "background-type", CONFIG_KEY_STRING, &key_background_type },
{ "panel-color", CONFIG_KEY_UNSIGNED_INTEGER, &key_panel_color },
{ "background-color", CONFIG_KEY_UNSIGNED_INTEGER, &key_background_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[] = {
{ "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
menu_func(struct window *window, int index, void *data)
{
printf("Selected index %d from a panel menu.\n", index);
}
static void
show_menu(struct panel *panel, struct input *input, uint32_t time)
{
int32_t x, y;
static const char *entries[] = {
"Roy", "Pris", "Leon", "Zhora"
};
input_get_position(input, &x, &y);
window_show_menu(window_get_display(panel->window),
input, time, panel->window,
x - 10, y - 10, menu_func, entries, 4);
}
static void
panel_launcher_activate(struct panel_launcher *widget)
{
pid_t pid;
pid = fork();
if (pid < 0) {
fprintf(stderr, "fork failed: %m\n");
return;
}
if (pid)
return;
if (execl(widget->path, widget->path, NULL) < 0) {
fprintf(stderr, "execl '%s' failed: %m\n", widget->path);
exit(1);
}
}
static void
panel_launcher_redraw_handler(struct widget *widget, void *data)
{
struct panel_launcher *launcher = data;
cairo_surface_t *surface;
struct rectangle allocation;
cairo_t *cr;
surface = window_get_surface(launcher->panel->window);
cr = cairo_create(surface);
widget_get_allocation(widget, &allocation);
if (launcher->pressed) {
allocation.x++;
allocation.y++;
}
cairo_set_source_surface(cr, launcher->icon,
allocation.x, allocation.y);
cairo_paint(cr);
if (launcher->focused) {
cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 0.4);
cairo_mask_surface(cr, launcher->icon,
allocation.x, allocation.y);
}
cairo_destroy(cr);
}
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 widget *widget, void *data)
{
cairo_surface_t *surface;
cairo_t *cr;
struct panel *panel = data;
surface = window_get_surface(panel->window);
cr = cairo_create(surface);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
set_hex_color(cr, key_panel_color);
cairo_paint(cr);
cairo_destroy(cr);
cairo_surface_destroy(surface);
}
static int
panel_launcher_enter_handler(struct widget *widget, struct input *input,
uint32_t time, int32_t x, int32_t y, void *data)
{
struct panel_launcher *launcher = data;
launcher->focused = 1;
widget_schedule_redraw(widget);
return POINTER_LEFT_PTR;
}
static void
panel_launcher_leave_handler(struct widget *widget,
struct input *input, void *data)
{
struct panel_launcher *launcher = data;
launcher->focused = 0;
widget_schedule_redraw(widget);
}
static void
panel_launcher_button_handler(struct widget *widget,
struct input *input, uint32_t time,
int button, int state, void *data)
{
struct panel_launcher *launcher;
launcher = widget_get_user_data(widget);
widget_schedule_redraw(widget);
if (state == 0)
panel_launcher_activate(launcher);
}
static void
panel_button_handler(struct widget *widget,
struct input *input, uint32_t time,
int button, int state, void *data)
{
struct panel *panel = data;
if (button == BTN_RIGHT && state)
show_menu(panel, input, time);
}
static void
panel_resize_handler(struct widget *widget,
int32_t width, int32_t height, void *data)
{
struct panel_launcher *launcher;
struct panel *panel = data;
int x, y, w, h;
x = 10;
y = 16;
wl_list_for_each(launcher, &panel->launcher_list, link) {
w = cairo_image_surface_get_width(launcher->icon);
h = cairo_image_surface_get_height(launcher->icon);
widget_set_allocation(launcher->widget,
x, y - h / 2, w + 1, h + 1);
x += w + 10;
}
}
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)
{
struct surface *surface = window_get_user_data(window);
struct panel *panel = container_of(surface, struct panel, base);
window_schedule_resize(panel->window, width, 32);
}
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);
panel->widget = window_add_widget(panel->window, panel);
wl_list_init(&panel->launcher_list);
window_set_title(panel->window, "panel");
window_set_custom(panel->window);
window_set_user_data(panel->window, panel);
widget_set_redraw_handler(panel->widget, panel_redraw_handler);
widget_set_resize_handler(panel->widget, panel_resize_handler);
widget_set_button_handler(panel->widget, panel_button_handler);
return panel;
}
static void
panel_add_launcher(struct panel *panel, const char *icon, const char *path)
{
struct panel_launcher *launcher;
launcher = malloc(sizeof *launcher);
memset(launcher, 0, sizeof *launcher);
launcher->icon = cairo_image_surface_create_from_png(icon);
launcher->path = strdup(path);
launcher->panel = panel;
wl_list_insert(panel->launcher_list.prev, &launcher->link);
launcher->widget = widget_add_widget(panel->widget, launcher);
widget_set_enter_handler(launcher->widget,
panel_launcher_enter_handler);
widget_set_leave_handler(launcher->widget,
panel_launcher_leave_handler);
widget_set_button_handler(launcher->widget,
panel_launcher_button_handler);
widget_set_redraw_handler(launcher->widget,
panel_launcher_redraw_handler);
}
enum {
BACKGROUND_SCALE,
BACKGROUND_TILE
};
static void
background_draw(struct widget *widget, void *data)
{
struct background *background = data;
cairo_surface_t *surface, *image;
cairo_pattern_t *pattern;
cairo_matrix_t matrix;
cairo_t *cr;
double sx, sy;
struct rectangle allocation;
int type = -1;
surface = window_get_surface(background->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);
widget_get_allocation(widget, &allocation);
image = NULL;
if (key_background_image)
image = load_image(key_background_image);
if (strcmp(key_background_type, "scale") == 0)
type = BACKGROUND_SCALE;
else if (strcmp(key_background_type, "tile") == 0)
type = BACKGROUND_TILE;
else
fprintf(stderr, "invalid background-type: %s\n",
key_background_type);
if (image && type != -1) {
pattern = cairo_pattern_create_for_surface(image);
switch (type) {
case BACKGROUND_SCALE:
sx = (double) cairo_image_surface_get_width(image) /
allocation.width;
sy = (double) cairo_image_surface_get_height(image) /
allocation.height;
cairo_matrix_init_scale(&matrix, sx, sy);
cairo_pattern_set_matrix(pattern, &matrix);
break;
case BACKGROUND_TILE:
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
break;
}
cairo_set_source(cr, pattern);
cairo_pattern_destroy (pattern);
cairo_surface_destroy(image);
} else {
set_hex_color(cr, key_background_color);
}
cairo_paint(cr);
cairo_destroy(cr);
cairo_surface_destroy(surface);
}
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 background *background =
(struct background *) window_get_user_data(window);
widget_schedule_resize(background->widget, width, height);
}
static void
unlock_dialog_redraw_handler(struct widget *widget, void *data)
{
struct unlock_dialog *dialog = data;
struct rectangle allocation;
cairo_t *cr;
cairo_surface_t *surface;
cairo_pattern_t *pat;
double cx, cy, r, f;
surface = window_get_surface(dialog->window);
cr = cairo_create(surface);
widget_get_allocation(dialog->widget, &allocation);
cairo_rectangle(cr, allocation.x, allocation.y,
allocation.width, allocation.height);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 0, 0, 0, 0.6);
cairo_fill(cr);
cairo_translate(cr, allocation.x, allocation.y);
if (dialog->button_focused)
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_pattern_destroy(pat);
cairo_arc(cr, cx, cy, r, 0.0, 2.0 * M_PI);
cairo_fill(cr);
widget_set_allocation(dialog->button,
allocation.x + cx - r,
allocation.y + cy - r, 2 * r, 2 * r);
cairo_destroy(cr);
cairo_surface_destroy(surface);
}
static void
unlock_dialog_button_handler(struct widget *widget,
struct input *input, uint32_t time,
int button, int state, void *data)
{
struct unlock_dialog *dialog = data;
struct desktop *desktop = dialog->desktop;
if (button == BTN_LEFT) {
if (state == 0 && !dialog->closing) {
display_defer(desktop->display, &desktop->unlock_task);
dialog->closing = 1;
}
}
}
static void
unlock_dialog_keyboard_focus_handler(struct window *window,
struct input *device, void *data)
{
window_schedule_redraw(window);
}
static int
unlock_dialog_widget_enter_handler(struct widget *widget,
struct input *input, uint32_t time,
int32_t x, int32_t y, void *data)
{
struct unlock_dialog *dialog = data;
dialog->button_focused = 1;
widget_schedule_redraw(widget);
return POINTER_LEFT_PTR;
}
static void
unlock_dialog_widget_leave_handler(struct widget *widget,
struct input *input, void *data)
{
struct unlock_dialog *dialog = data;
dialog->button_focused = 0;
widget_schedule_redraw(widget);
}
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);
dialog->widget = frame_create(dialog->window, dialog);
window_set_title(dialog->window, "Unlock your desktop");
window_set_custom(dialog->window);
window_set_user_data(dialog->window, dialog);
window_set_keyboard_focus_handler(dialog->window,
unlock_dialog_keyboard_focus_handler);
dialog->button = widget_add_widget(dialog->widget, dialog);
widget_set_redraw_handler(dialog->widget,
unlock_dialog_redraw_handler);
widget_set_enter_handler(dialog->button,
unlock_dialog_widget_enter_handler);
widget_set_leave_handler(dialog->button,
unlock_dialog_widget_leave_handler);
widget_set_button_handler(dialog->button,
unlock_dialog_button_handler);
desktop_shell_set_lock_surface(desktop->shell,
window_get_wl_shell_surface(dialog->window));
window_schedule_resize(dialog->window, 260, 230);
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);
background->widget = window_add_widget(background->window, background);
window_set_custom(background->window);
window_set_user_data(background->window, background);
widget_set_redraw_handler(background->widget, background_draw);
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_launcher(output->panel,
key_launcher_icon, key_launcher_path);
free(key_launcher_icon);
key_launcher_icon = NULL;
free(key_launcher_path);
key_launcher_path = NULL;
}
static void
add_default_launcher(struct desktop *desktop)
{
struct output *output;
wl_list_for_each(output, &desktop->outputs, link)
panel_add_launcher(output->panel,
DATADIR "/weston/terminal.png",
BINDIR "/weston-terminal");
}
int main(int argc, char *argv[])
{
struct desktop desktop = { 0 };
char *config_file;
struct output *output;
int ret;
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("weston-desktop-shell.ini");
ret = parse_config_file(config_file,
config_sections, ARRAY_LENGTH(config_sections),
&desktop);
free(config_file);
if (ret < 0)
add_default_launcher(&desktop);
signal(SIGCHLD, sigchild_handler);
display_run(desktop.display);
return 0;
}