Add example of GTK+ based overlay client

3 files changed, 186 insertions, 1 deletions

diff --git a/Makefile.am b/Makefile.am
index e3b11ba..882ac21 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,4 +1,4 @@
-libexec_PROGRAMS = weston-overlay
+libexec_PROGRAMS = weston-overlay weston-gtk-overlay
 
 weston_overlay_CPPFLAGS = $(CLIENT_CFLAGS)
 weston_overlay_LDADD = $(CLIENT_LIBS)
@@ -7,6 +7,13 @@ weston_overlay_SOURCES =			\
 	overlay-client-protocol.h		\
 	overlay-protocol.c
 
+weston_gtk_overlay_CPPFLAGS = $(GTK_CLIENT_CFLAGS)
+weston_gtk_overlay_LDADD = $(GTK_CLIENT_LIBS)
+weston_gtk_overlay_SOURCES =			\
+	gtk-overlay-client.c			\
+	overlay-client-protocol.h		\
+	overlay-protocol.c
+
 moduledir = @libdir@/weston
 module_LTLIBRARIES =				\
 	overlay.la
diff --git a/configure.ac b/configure.ac
index b6b746a..75fb05b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,6 +18,7 @@ LT_INIT([disable-static])
 PKG_PROG_PKG_CONFIG()
 
 PKG_CHECK_MODULES([CLIENT], [wayland-client >= 1.0.2])
+PKG_CHECK_MODULES([GTK_CLIENT], [wayland-client >= 1.0.2 gtk+-3.0 >= 3.7])
 PKG_CHECK_MODULES([PLUGIN], [pixman-1 xkbcommon])
 
 WAYLAND_PREFIX=`$PKG_CONFIG --variable=prefix wayland-client`
diff --git a/gtk-overlay-client.c b/gtk-overlay-client.c
new file mode 100644
index 0000000..ba35c62
--- /dev/null
+++ b/gtk-overlay-client.c
@@ -0,0 +1,177 @@
+/*
+ * 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 <wayland-client.h>
+
+#include <gtk/gtk.h>
+#include <gdk/gdkwayland.h>
+
+#include "overlay-client-protocol.h"
+
+struct overlay_client {
+	GdkWindow *gdk_window;
+	GdkDisplay *gdk_display;
+	struct wl_display *wl_display;
+	struct wl_registry *wl_registry;
+	GtkWidget *window;
+	struct overlay *overlay;
+	struct wl_surface *wl_surface;
+};
+
+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
+overlay_activate(void *data, struct overlay *overlay)
+{
+	struct overlay_client *client = data;
+	GtkWidget *vbox, *label, *bbox, *button;
+
+	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), 400, 200);
+
+	gtk_container_set_border_width(GTK_CONTAINER(client->window), 10);
+
+	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);
+
+	gtk_widget_realize(client->window);
+
+	client->gdk_window = gtk_widget_get_window(client->window);
+
+	gdk_wayland_window_set_custom(client->gdk_window);
+
+	client->wl_surface =
+		gdk_wayland_window_get_wl_surface(client->gdk_window);
+
+	overlay_surface(client->overlay, client->wl_surface);	
+
+	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, 
+				 &registry_listener, client);
+	client->window = NULL;
+
+	gtk_main();
+
+	return 0;
+}