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/*
* Copyright 2014 Javier S. Pedro <maemo@javispedro.com>
*
* This file is part of TopMenu.
*
* TopMenu is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* TopMenu is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with TopMenu. If not, see <http://www.gnu.org/licenses/>.
*/
#include <X11/Xatom.h>
#include <gdk/gdkx.h>
#include "../global.h"
#if GTK_VERSION == 3
#include <gtk/gtkx.h>
#endif
#include "topmenu-client.h"
static G_DEFINE_QUARK(topmenu-plug, plug)
static G_DEFINE_QUARK(topmenu-background, background)
static Atom atom_change_background = None;
static gboolean handle_plug_delete(GtkPlug *plug, GdkEvent *event, GdkWindow *window)
{
return TRUE; // Prevent deletion of plug window
}
static gboolean handle_widget_button_event(GtkWidget *widget, GdkEvent *event, GtkPlug *plug)
{
if (event->type != GDK_BUTTON_PRESS && event->type != GDK_BUTTON_RELEASE) {
return FALSE;
}
if (event->button.button == 1) {
return FALSE;
}
GdkWindow *socket = gtk_plug_get_socket_window(plug);
if (socket) {
GdkDisplay * display = gdk_window_get_display(socket);
GdkScreen *screen = gdk_window_get_screen(socket);
GdkWindow *root = gdk_screen_get_root_window(screen);
Display *dpy = GDK_DISPLAY_XDISPLAY(display);
Window xwin = GDK_WINDOW_XID(socket);
if (event->type == GDK_BUTTON_PRESS) {
gdk_display_pointer_ungrab(gtk_widget_get_display(widget),
GDK_CURRENT_TIME);
}
XEvent e;
long mask = event->type == GDK_BUTTON_PRESS ? ButtonPressMask : ButtonReleaseMask;
e.type = event->type == GDK_BUTTON_PRESS ? ButtonPress : ButtonRelease;
e.xbutton.window = xwin;
e.xbutton.display = dpy;
e.xbutton.root = GDK_WINDOW_XID(root);
e.xbutton.time = event->button.time;
e.xbutton.button = event->button.button;
e.xbutton.state = event->button.state;
e.xbutton.x = event->button.x;
e.xbutton.y = event->button.y;
e.xbutton.x_root = event->button.x_root;
e.xbutton.y_root = event->button.y_root;
e.xbutton.same_screen = True;
gdk_error_trap_push();
XSendEvent(dpy, xwin, True, mask, &e);
g_debug("Forwarding button %d %s event to 0x%lx",
e.xbutton.button,
event->type == GDK_BUTTON_PRESS ? "press" : "release",
xwin);
gdk_flush();
gdk_error_trap_pop();
return TRUE;
}
return FALSE;
}
static GdkFilterReturn handle_plug_window_event(GdkXEvent *xevent, GdkEvent *event, gpointer data)
{
GdkWindow *window = GDK_WINDOW(data);
if (((XEvent*)xevent)->type == ClientMessage) {
XClientMessageEvent *msg = (XClientMessageEvent*) xevent;
if (msg->message_type == atom_change_background) {
g_debug("received change background message");
TopMenuBackground *bg = g_object_get_qdata(G_OBJECT(window), background_quark());
g_return_val_if_fail(bg, GDK_FILTER_REMOVE);
topmenu_background_set_from_client_message(bg, msg);
return GDK_FILTER_REMOVE;
}
}
return GDK_FILTER_CONTINUE;
}
void topmenu_client_connect_window_widget(GdkWindow *window, GtkWidget *widget)
{
Display *display = GDK_WINDOW_XDISPLAY(window);
// Disconnect any pre-existing widget
if (g_object_get_qdata(G_OBJECT(window), plug_quark())) {
topmenu_client_disconnect_window(window);
}
// Initialize atoms now
if (atom_change_background == None) {
atom_change_background = XInternAtom(display, ATOM_TOPMENU_BACKGROUND_CHANGE, False);
}
Window xwin = GDK_WINDOW_XID(window);
GtkPlug *plug = GTK_PLUG(gtk_plug_new(0));
gtk_container_add(GTK_CONTAINER(plug), widget);
g_signal_connect_object(plug, "delete-event",
G_CALLBACK(handle_plug_delete), window, 0);
g_signal_connect_object(widget, "button-press-event",
G_CALLBACK(handle_widget_button_event), plug, 0);
g_signal_connect_object(widget, "button-release-event",
G_CALLBACK(handle_widget_button_event), plug, 0);
gtk_widget_realize(GTK_WIDGET(plug));
gdk_window_add_filter(gtk_widget_get_window(GTK_WIDGET(plug)),
handle_plug_window_event, window);
gtk_widget_show(GTK_WIDGET(plug));
Window plug_xwin = gtk_plug_get_id(plug);
Atom atom = XInternAtom(display, ATOM_TOPMENU_WINDOW, False);
XChangeProperty(display, xwin, atom,
XA_WINDOW, 32, PropModeReplace,
(unsigned char*)&plug_xwin, 1);
g_object_set_qdata_full(G_OBJECT(window), plug_quark(), plug,
(GDestroyNotify) >k_widget_destroy);
// Connect the background
TopMenuBackground *bg = topmenu_background_new();
topmenu_background_connect(bg, widget);
// Destroy the background when the window is destroyed
g_object_set_qdata_full(G_OBJECT(window), background_quark(),
bg, g_object_unref);
}
void topmenu_client_disconnect_window(GdkWindow *window)
{
Display *display = GDK_WINDOW_XDISPLAY(window);
gpointer window_data = g_object_steal_qdata(G_OBJECT(window), plug_quark());
g_return_if_fail(window_data);
g_object_set_qdata(G_OBJECT(window), background_quark(), NULL);
Window xwin = GDK_WINDOW_XID(window);
GtkPlug *plug = GTK_PLUG(window_data);
g_return_if_fail(plug);
Atom atom = XInternAtom(display, ATOM_TOPMENU_WINDOW, False);
XDeleteProperty(display, xwin, atom);
g_warn_if_fail(G_OBJECT(plug)->ref_count == 1);
gtk_widget_destroy(GTK_WIDGET(plug));
}
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