376 lines
14 KiB
C
376 lines
14 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/*
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* Copyright (c) 2008 Red Hat, Inc.
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* Copyright (c) 2008 Intel Corp.
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*
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* Based on plugin skeleton by:
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* Author: Tomas Frydrych <tf@linux.intel.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#define MUTTER_BUILDING_PLUGIN 1
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#include <mutter-plugin.h>
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#include <glib/gi18n-lib.h>
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#include <clutter/clutter.h>
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#include <clutter/x11/clutter-x11.h>
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#include <gdk/gdk.h>
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#include <gdk/gdkx.h>
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#include <gjs/gjs.h>
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#include <girepository.h>
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#include <gmodule.h>
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#include <stdlib.h>
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#include <string.h>
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#include "display.h"
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#include "shell-global.h"
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#include "shell-wm.h"
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static void gnome_shell_plugin_constructed (GObject *object);
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static void gnome_shell_plugin_dispose (GObject *object);
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static void gnome_shell_plugin_finalize (GObject *object);
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static void gnome_shell_plugin_minimize (MutterPlugin *plugin,
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MutterWindow *actor);
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static void gnome_shell_plugin_maximize (MutterPlugin *plugin,
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MutterWindow *actor,
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gint x,
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gint y,
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gint width,
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gint height);
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static void gnome_shell_plugin_unmaximize (MutterPlugin *plugin,
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MutterWindow *actor,
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gint x,
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gint y,
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gint width,
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gint height);
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static void gnome_shell_plugin_map (MutterPlugin *plugin,
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MutterWindow *actor);
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static void gnome_shell_plugin_destroy (MutterPlugin *plugin,
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MutterWindow *actor);
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static void gnome_shell_plugin_switch_workspace (MutterPlugin *plugin,
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const GList **actors,
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gint from,
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gint to,
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MetaMotionDirection direction);
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static void gnome_shell_plugin_kill_effect (MutterPlugin *plugin,
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MutterWindow *actor,
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gulong events);
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static gboolean gnome_shell_plugin_xevent_filter (MutterPlugin *plugin,
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XEvent *event);
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static const MutterPluginInfo *gnome_shell_plugin_plugin_info (MutterPlugin *plugin);
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#define GNOME_TYPE_SHELL_PLUGIN (gnome_shell_plugin_get_type ())
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#define GNOME_SHELL_PLUGIN(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GNOME_TYPE_SHELL_PLUGIN, GnomeShellPlugin))
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#define GNOME_SHELL_PLUGIN_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GNOME_TYPE_SHELL_PLUGIN, GnomeShellPluginClass))
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#define GNOME_IS_SHELL_PLUGIN(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GNOME_SHELL_PLUGIN_TYPE))
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#define GNOME_IS_SHELL_PLUGIN_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GNOME_TYPE_SHELL_PLUGIN))
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#define GNOME_SHELL_PLUGIN_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GNOME_TYPE_SHELL_PLUGIN, GnomeShellPluginClass))
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typedef struct _GnomeShellPlugin GnomeShellPlugin;
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typedef struct _GnomeShellPluginClass GnomeShellPluginClass;
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struct _GnomeShellPlugin
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{
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MutterPlugin parent;
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GjsContext *gjs_context;
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Atom panel_action;
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Atom panel_action_run_dialog;
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Atom panel_action_main_menu;
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};
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struct _GnomeShellPluginClass
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{
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MutterPluginClass parent_class;
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};
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/*
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* Create the plugin struct; function pointers initialized in
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* g_module_check_init().
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*/
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MUTTER_PLUGIN_DECLARE(GnomeShellPlugin, gnome_shell_plugin);
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static void
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gnome_shell_plugin_class_init (GnomeShellPluginClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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MutterPluginClass *plugin_class = MUTTER_PLUGIN_CLASS (klass);
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gobject_class->constructed = gnome_shell_plugin_constructed;
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gobject_class->dispose = gnome_shell_plugin_dispose;
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gobject_class->finalize = gnome_shell_plugin_finalize;
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plugin_class->map = gnome_shell_plugin_map;
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plugin_class->minimize = gnome_shell_plugin_minimize;
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plugin_class->maximize = gnome_shell_plugin_maximize;
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plugin_class->unmaximize = gnome_shell_plugin_unmaximize;
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plugin_class->destroy = gnome_shell_plugin_destroy;
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plugin_class->switch_workspace = gnome_shell_plugin_switch_workspace;
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plugin_class->kill_effect = gnome_shell_plugin_kill_effect;
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plugin_class->xevent_filter = gnome_shell_plugin_xevent_filter;
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plugin_class->plugin_info = gnome_shell_plugin_plugin_info;
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}
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static void
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gnome_shell_plugin_init (GnomeShellPlugin *shell_plugin)
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{
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_shell_global_set_plugin (shell_global_get(), MUTTER_PLUGIN(shell_plugin));
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}
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static void
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gnome_shell_plugin_constructed (GObject *object)
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{
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MutterPlugin *plugin = MUTTER_PLUGIN (object);
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GnomeShellPlugin *shell_plugin = GNOME_SHELL_PLUGIN (object);
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MetaScreen *screen;
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MetaDisplay *display;
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GError *error = NULL;
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int status;
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const char *shell_js;
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char **search_path;
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ClutterBackend *backend;
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cairo_font_options_t *font_options;
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/* Disable text mipmapping; it causes problems on pre-GEM Intel
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* drivers and we should just be rendering text at the right
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* size rather than scaling it. If we do effects where we dynamically
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* zoom labels, then we might want to reconsider.
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*/
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clutter_set_font_flags (clutter_get_font_flags () & ~CLUTTER_FONT_MIPMAPPING);
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/* Clutter (as of 0.9) passes comprehensively wrong font options
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* override whatever set_font_flags() did above.
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*
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* http://bugzilla.openedhand.com/show_bug.cgi?id=1456
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*/
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backend = clutter_get_default_backend ();
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font_options = cairo_font_options_create ();
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/* Default options for everything is reasonable; except that
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* we want to turn off subpixel anti-aliasing; since Clutter
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* doesn't currently have the code to support ARGB masks,
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* generating them then squashing them back to A8 is pointless.
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*/
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cairo_font_options_set_antialias (font_options, CAIRO_ANTIALIAS_GRAY);
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clutter_backend_set_font_options (backend, font_options);
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cairo_font_options_destroy (font_options);
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screen = mutter_plugin_get_screen (plugin);
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display = meta_screen_get_display (screen);
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g_irepository_prepend_search_path (GNOME_SHELL_PKGLIBDIR);
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shell_js = g_getenv("GNOME_SHELL_JS");
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if (!shell_js)
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shell_js = JSDIR;
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search_path = g_strsplit(shell_js, ":", -1);
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shell_plugin->gjs_context = gjs_context_new_with_search_path(search_path);
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g_strfreev(search_path);
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shell_plugin->panel_action = XInternAtom (meta_display_get_xdisplay (display),
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"_GNOME_PANEL_ACTION", FALSE);
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shell_plugin->panel_action_run_dialog = XInternAtom (meta_display_get_xdisplay (display),
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"_GNOME_PANEL_ACTION_RUN_DIALOG", FALSE);
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shell_plugin->panel_action_main_menu = XInternAtom (meta_display_get_xdisplay (display),
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"_GNOME_PANEL_ACTION_MAIN_MENU", FALSE);
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if (!gjs_context_eval (shell_plugin->gjs_context,
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"const Main = imports.ui.main; Main.start();",
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-1,
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"<main>",
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&status,
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&error))
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{
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g_message ("Execution of main.js threw exception: %s", error->message);
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g_error_free (error);
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/* We just exit() here, since in a development environment you'll get the
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* error in your shell output, and it's way better than a busted WM,
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* which typically manifests as a white screen.
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*
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* In production, we shouldn't crash =) But if we do, we should get
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* restarted by the session infrastructure, which is likely going
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* to be better than some undefined state.
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*
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* If there was a generic "hook into bug-buddy for non-C crashes"
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* infrastructure, here would be the place to put it.
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*/
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exit (1);
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}
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}
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static void
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gnome_shell_plugin_dispose (GObject *object)
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{
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G_OBJECT_CLASS(gnome_shell_plugin_parent_class)->dispose (object);
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}
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static void
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gnome_shell_plugin_finalize (GObject *object)
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{
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G_OBJECT_CLASS(gnome_shell_plugin_parent_class)->finalize (object);
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}
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static ShellWM *
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get_shell_wm (void)
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{
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ShellWM *wm;
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g_object_get (shell_global_get (),
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"window-manager", &wm,
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NULL);
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/* drop extra ref added by g_object_get */
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g_object_unref (wm);
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return wm;
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}
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static void
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gnome_shell_plugin_minimize (MutterPlugin *plugin,
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MutterWindow *actor)
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{
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_shell_wm_minimize (get_shell_wm (),
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actor);
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}
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static void
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gnome_shell_plugin_maximize (MutterPlugin *plugin,
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MutterWindow *actor,
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gint x,
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gint y,
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gint width,
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gint height)
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{
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_shell_wm_maximize (get_shell_wm (),
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actor, x, y, width, height);
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}
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static void
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gnome_shell_plugin_unmaximize (MutterPlugin *plugin,
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MutterWindow *actor,
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gint x,
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gint y,
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gint width,
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gint height)
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{
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_shell_wm_unmaximize (get_shell_wm (),
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actor, x, y, width, height);
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}
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static void
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gnome_shell_plugin_map (MutterPlugin *plugin,
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MutterWindow *actor)
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{
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_shell_wm_map (get_shell_wm (),
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actor);
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}
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static void
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gnome_shell_plugin_destroy (MutterPlugin *plugin,
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MutterWindow *actor)
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{
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_shell_wm_destroy (get_shell_wm (),
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actor);
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}
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static void
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gnome_shell_plugin_switch_workspace (MutterPlugin *plugin,
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const GList **actors,
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gint from,
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gint to,
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MetaMotionDirection direction)
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{
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_shell_wm_switch_workspace (get_shell_wm(),
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actors, from, to, direction);
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}
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static void
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gnome_shell_plugin_kill_effect (MutterPlugin *plugin,
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MutterWindow *actor,
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gulong events)
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{
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_shell_wm_kill_effect (get_shell_wm(),
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actor, events);
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}
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static gboolean
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handle_panel_event (GnomeShellPlugin *shell_plugin,
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XEvent *xev)
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{
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MutterPlugin *plugin = MUTTER_PLUGIN (shell_plugin);
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MetaScreen *screen;
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MetaDisplay *display;
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XClientMessageEvent *xev_client;
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Window root;
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screen = mutter_plugin_get_screen (plugin);
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display = meta_screen_get_display (screen);
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if (xev->type != ClientMessage)
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return FALSE;
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root = meta_screen_get_xroot (screen);
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xev_client = (XClientMessageEvent*) xev;
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if (!(xev_client->window == root &&
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xev_client->message_type == shell_plugin->panel_action &&
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xev_client->format == 32))
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return FALSE;
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if (xev_client->data.l[0] == shell_plugin->panel_action_run_dialog)
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g_signal_emit_by_name (shell_global_get (), "panel-run-dialog",
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(guint32) xev_client->data.l[1]);
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else if (xev_client->data.l[0] == shell_plugin->panel_action_main_menu)
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g_signal_emit_by_name (shell_global_get (), "panel-main-menu",
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(guint32) xev_client->data.l[1]);
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return TRUE;
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}
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static gboolean
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gnome_shell_plugin_xevent_filter (MutterPlugin *plugin,
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XEvent *xev)
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{
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GnomeShellPlugin *shell_plugin = GNOME_SHELL_PLUGIN (plugin);
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if (handle_panel_event (shell_plugin, xev))
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return TRUE;
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return clutter_x11_handle_event (xev) != CLUTTER_X11_FILTER_CONTINUE;
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}
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static const
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MutterPluginInfo *gnome_shell_plugin_plugin_info (MutterPlugin *plugin)
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{
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static const MutterPluginInfo info = {
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.name = "GNOME Shell",
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.version = "0.1",
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.author = "Various",
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.license = "GPLv2+",
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.description = "Provides GNOME Shell core functionality"
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};
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return &info;
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}
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