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/*
* Copyright © 2013 Intel Corporation
*
* 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 <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <fcntl.h>
#include <wayland-client.h>
#include <gtk/gtk.h>
#include <gdk/gdkwayland.h>
#include "overlay-client-protocol.h"
struct overlay_client {
GdkDisplay *gdk_display;
struct wl_display *wl_display;
struct wl_registry *wl_registry;
GtkWidget *window;
struct overlay *overlay;
};
static void
tell_me_more(GtkWidget *widget, gpointer data)
{
struct overlay_client *client = data;
gtk_widget_destroy(client->window);
client->window = NULL;
}
static void
dismiss(GtkWidget *widget, gpointer data)
{
struct overlay_client *client = data;
gtk_widget_destroy(client->window);
client->window = NULL;
}
static void
apply_css (GtkWidget *widget, GtkStyleProvider *provider)
{
gtk_style_context_add_provider(gtk_widget_get_style_context(widget),
provider, G_MAXUINT);
if (GTK_IS_CONTAINER(widget))
gtk_container_forall(GTK_CONTAINER(widget),
(GtkCallback) apply_css, provider);
}
static char *
load_css(const char *filename)
{
int fd, len;
static char buffer[4096];
fd = open(filename, O_RDONLY);
len = read(fd, buffer, sizeof buffer - 1);
buffer[len] = '\0';
close(fd);
return buffer;
}
static void
widget_realize_cb (GtkWidget *widget, void *data)
{
GdkWindow *window;
struct wl_surface *surface;
struct input_panel_surface *ip_surface;
GdkWindow *gdk_window;
struct overlay_client *client = data;
gdk_window = gtk_widget_get_window(widget);
gdk_wayland_window_set_use_custom_surface(gdk_window);
surface = gdk_wayland_window_get_wl_surface(gdk_window);
overlay_surface(client->overlay, surface);
}
static void
overlay_activate(void *data, struct overlay *overlay)
{
struct overlay_client *client = data;
GtkWidget *vbox, *label, *bbox, *button;
GtkStyleProvider *provider;
char *css;
if (client->window) {
printf("overlay already active\n");
return;
}
printf("got activate event, creating overlay\n");
client->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(client->window), "Hello");
gtk_window_set_decorated(GTK_WINDOW(client->window), FALSE);
gtk_window_set_default_size(GTK_WINDOW(client->window), 600, 300);
g_signal_connect (client->window, "realize",
G_CALLBACK (widget_realize_cb), client);
gtk_container_set_border_width(GTK_CONTAINER(client->window), 30);
vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 8);
gtk_container_add(GTK_CONTAINER(client->window), vbox);
label = gtk_label_new("Welcome to the secret overlay");
gtk_box_pack_start(GTK_BOX(vbox), label, TRUE, FALSE, 0);
bbox = gtk_button_box_new(GTK_ORIENTATION_HORIZONTAL);
gtk_button_box_set_layout(GTK_BUTTON_BOX(bbox), GTK_BUTTONBOX_END);
gtk_box_set_spacing (GTK_BOX (bbox), 20);
gtk_box_pack_start(GTK_BOX(vbox), bbox, FALSE, FALSE, 0);
button = gtk_button_new_with_label("Tell me more");
g_signal_connect(button, "clicked", G_CALLBACK(tell_me_more), client);
gtk_container_add(GTK_CONTAINER(bbox), button);
button = gtk_button_new_with_label("Dismiss");
g_signal_connect(button, "clicked", G_CALLBACK(dismiss), client);
gtk_container_add(GTK_CONTAINER(bbox), button);
provider = GTK_STYLE_PROVIDER(gtk_css_provider_new ());
css = load_css("overlay.css");
gtk_css_provider_load_from_data(GTK_CSS_PROVIDER(provider),
css, -1, NULL);
apply_css(client->window, provider);
gtk_widget_show_all(client->window);
}
static void
overlay_done(void *data, struct overlay *overlay)
{
struct overlay_client *client = data;
printf("got done event, destroying overlay\n");
gtk_widget_destroy(client->window);
client->window = NULL;
}
static const struct overlay_listener listener = {
overlay_activate,
overlay_done
};
static void
registry_handle_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version)
{
struct overlay_client *client = data;
if (strcmp(interface, "overlay") == 0) {
client->overlay = wl_registry_bind(registry, name,
&overlay_interface, 1);
overlay_add_listener(client->overlay, &listener, client);
}
}
static void
registry_handle_global_remove(void *data, struct wl_registry *registry,
uint32_t name)
{
}
static const struct wl_registry_listener registry_listener = {
registry_handle_global,
registry_handle_global_remove
};
int
main(int argc, char *argv[])
{
struct overlay_client *client;
gtk_init(&argc, &argv);
client = malloc(sizeof *client);
client->gdk_display = gdk_display_get_default();
client->wl_display =
gdk_wayland_display_get_wl_display(client->gdk_display);
client->wl_registry = wl_display_get_registry(client->wl_display);
wl_registry_add_listener(client->wl_registry,
®istry_listener, client);
client->window = NULL;
gtk_main();
return 0;
}
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