gnome-shell/src/shell-wm.c
Dan Winship 81dbf5118f Implement MetaAltTabHandler
This is a fairly simple implementation, not all that different from
plain metacity's. Further improvements could be made to
js/ui/altTab.js in the future.

http://bugzilla.gnome.org/show_bug.cgi?id=580917
2009-05-04 13:01:03 -04:00

420 lines
11 KiB
C

/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
#include "shell-wm.h"
#include "shell-global.h"
#include "shell-marshal.h"
struct _ShellWM {
GObject parent;
MutterPlugin *plugin;
GList *switch_workspace_actors;
};
/* Signals */
enum
{
MINIMIZE,
KILL_MINIMIZE,
MAXIMIZE,
KILL_MAXIMIZE,
UNMAXIMIZE,
KILL_UNMAXIMIZE,
MAP,
KILL_MAP,
DESTROY,
KILL_DESTROY,
SWITCH_WORKSPACE,
KILL_SWITCH_WORKSPACE,
BEGIN_ALT_TAB,
LAST_SIGNAL
};
G_DEFINE_TYPE(ShellWM, shell_wm, G_TYPE_OBJECT);
static void shell_wm_set_switch_workspace_actors (ShellWM *wm,
GList *actors);
static guint shell_wm_signals [LAST_SIGNAL] = { 0 };
static void
shell_wm_init (ShellWM *wm)
{
meta_alt_tab_handler_register (SHELL_TYPE_ALT_TAB_HANDLER);
}
static void
shell_wm_finalize (GObject *object)
{
ShellWM *wm = SHELL_WM (object);
shell_wm_set_switch_workspace_actors (wm, NULL);
G_OBJECT_CLASS (shell_wm_parent_class)->finalize (object);
}
static void
shell_wm_class_init (ShellWMClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = shell_wm_finalize;
shell_wm_signals[MINIMIZE] =
g_signal_new ("minimize",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
MUTTER_TYPE_COMP_WINDOW);
shell_wm_signals[KILL_MINIMIZE] =
g_signal_new ("kill-minimize",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
MUTTER_TYPE_COMP_WINDOW);
shell_wm_signals[MAXIMIZE] =
g_signal_new ("maximize",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
_shell_marshal_VOID__OBJECT_INT_INT_INT_INT,
G_TYPE_NONE, 5,
MUTTER_TYPE_COMP_WINDOW, G_TYPE_INT, G_TYPE_INT, G_TYPE_INT, G_TYPE_INT);
shell_wm_signals[KILL_MAXIMIZE] =
g_signal_new ("kill-maximize",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
MUTTER_TYPE_COMP_WINDOW);
shell_wm_signals[UNMAXIMIZE] =
g_signal_new ("unmaximize",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
_shell_marshal_VOID__OBJECT_INT_INT_INT_INT,
G_TYPE_NONE, 1,
MUTTER_TYPE_COMP_WINDOW, G_TYPE_INT, G_TYPE_INT, G_TYPE_INT, G_TYPE_INT);
shell_wm_signals[KILL_UNMAXIMIZE] =
g_signal_new ("kill-unmaximize",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
MUTTER_TYPE_COMP_WINDOW);
shell_wm_signals[MAP] =
g_signal_new ("map",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
MUTTER_TYPE_COMP_WINDOW);
shell_wm_signals[KILL_MAP] =
g_signal_new ("kill-map",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
MUTTER_TYPE_COMP_WINDOW);
shell_wm_signals[DESTROY] =
g_signal_new ("destroy",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
MUTTER_TYPE_COMP_WINDOW);
shell_wm_signals[KILL_DESTROY] =
g_signal_new ("kill-destroy",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
MUTTER_TYPE_COMP_WINDOW);
shell_wm_signals[SWITCH_WORKSPACE] =
g_signal_new ("switch-workspace",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
_shell_marshal_VOID__INT_INT_INT,
G_TYPE_NONE, 3,
G_TYPE_INT, G_TYPE_INT, G_TYPE_INT);
shell_wm_signals[KILL_SWITCH_WORKSPACE] =
g_signal_new ("kill-switch-workspace",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
shell_wm_signals[BEGIN_ALT_TAB] =
g_signal_new ("begin-alt-tab",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
META_TYPE_ALT_TAB_HANDLER);
}
void
_shell_wm_switch_workspace (ShellWM *wm,
const GList **actors,
gint from,
gint to,
MetaMotionDirection direction)
{
shell_wm_set_switch_workspace_actors (wm, (GList *)*actors);
g_signal_emit (wm, shell_wm_signals[SWITCH_WORKSPACE], 0,
from, to, direction);
}
/**
* shell_wm_get_switch_workspace_actors:
* @wm: the #ShellWM
*
* A workaround for a missing feature in gobject-introspection. Returns
* the list of windows involved in a switch-workspace operation (which
* cannot be passed directly to the signal handler because there's no
* way to annotate the element-type of a signal parameter.)
*
* Return value: (element-type MutterWindow) (transfer full): the list
* of windows
**/
GList *
shell_wm_get_switch_workspace_actors (ShellWM *wm)
{
GList *l;
for (l = wm->switch_workspace_actors; l; l = l->next)
g_object_ref (l->data);
return g_list_copy (wm->switch_workspace_actors);
}
static void
shell_wm_set_switch_workspace_actors (ShellWM *wm, GList *actors)
{
const GList *l;
for (l = wm->switch_workspace_actors; l; l = l->next)
g_object_unref (l->data);
g_list_free (wm->switch_workspace_actors);
wm->switch_workspace_actors = g_list_copy (actors);
for (l = wm->switch_workspace_actors; l; l = l->next)
g_object_ref (l->data);
}
/**
* shell_wm_completed_switch_workspace:
* @wm: the ShellWM
*
* The plugin must call this when it has finished switching the
* workspace.
**/
void
shell_wm_completed_switch_workspace (ShellWM *wm)
{
g_return_if_fail (wm->switch_workspace_actors != NULL);
/* mutter_plugin_effect_completed() requires us to pass a window,
* though it doesn't matter *which* window in this case.
*/
mutter_plugin_effect_completed (wm->plugin,
wm->switch_workspace_actors->data,
MUTTER_PLUGIN_SWITCH_WORKSPACE);
shell_wm_set_switch_workspace_actors (wm, NULL);
}
/**
* shell_wm_completed_minimize
* @wm: the ShellWM
* @actor: the MutterWindow actor
*
* The plugin must call this when it has completed a window minimize effect.
**/
void
shell_wm_completed_minimize (ShellWM *wm,
MutterWindow *actor)
{
mutter_plugin_effect_completed (wm->plugin,
actor,
MUTTER_PLUGIN_MINIMIZE);
}
/**
* shell_wm_completed_maximize
* @wm: the ShellWM
* @actor: the MutterWindow actor
*
* The plugin must call this when it has completed a window maximize effect.
**/
void
shell_wm_completed_maximize (ShellWM *wm,
MutterWindow *actor)
{
mutter_plugin_effect_completed (wm->plugin,
actor,
MUTTER_PLUGIN_MAXIMIZE);
}
/**
* shell_wm_completed_unmaximize
* @wm: the ShellWM
* @actor: the MutterWindow actor
*
* The plugin must call this when it has completed a window unmaximize effect.
**/
void
shell_wm_completed_unmaximize (ShellWM *wm,
MutterWindow *actor)
{
mutter_plugin_effect_completed (wm->plugin,
actor,
MUTTER_PLUGIN_UNMAXIMIZE);
}
/**
* shell_wm_completed_map
* @wm: the ShellWM
* @actor: the MutterWindow actor
*
* The plugin must call this when it has completed a window map effect.
**/
void
shell_wm_completed_map (ShellWM *wm,
MutterWindow *actor)
{
mutter_plugin_effect_completed (wm->plugin,
actor,
MUTTER_PLUGIN_MAP);
}
/**
* shell_wm_completed_destroy
* @wm: the ShellWM
* @actor: the MutterWindow actor
*
* The plugin must call this when it has completed a window destroy effect.
**/
void
shell_wm_completed_destroy (ShellWM *wm,
MutterWindow *actor)
{
mutter_plugin_effect_completed (wm->plugin,
actor,
MUTTER_PLUGIN_DESTROY);
}
void
_shell_wm_kill_effect (ShellWM *wm,
MutterWindow *actor,
gulong events)
{
if (events & MUTTER_PLUGIN_MINIMIZE)
g_signal_emit (wm, shell_wm_signals[KILL_MINIMIZE], 0, actor);
if (events & MUTTER_PLUGIN_MAXIMIZE)
g_signal_emit (wm, shell_wm_signals[KILL_MAXIMIZE], 0, actor);
if (events & MUTTER_PLUGIN_UNMAXIMIZE)
g_signal_emit (wm, shell_wm_signals[KILL_UNMAXIMIZE], 0, actor);
if (events & MUTTER_PLUGIN_MAP)
g_signal_emit (wm, shell_wm_signals[KILL_MAP], 0, actor);
if (events & MUTTER_PLUGIN_DESTROY)
g_signal_emit (wm, shell_wm_signals[KILL_DESTROY], 0, actor);
if (events & MUTTER_PLUGIN_SWITCH_WORKSPACE)
g_signal_emit (wm, shell_wm_signals[KILL_SWITCH_WORKSPACE], 0);
}
void
_shell_wm_minimize (ShellWM *wm,
MutterWindow *actor)
{
g_signal_emit (wm, shell_wm_signals[MINIMIZE], 0, actor);
}
void
_shell_wm_maximize (ShellWM *wm,
MutterWindow *actor,
int target_x,
int target_y,
int target_width,
int target_height)
{
g_signal_emit (wm, shell_wm_signals[MAXIMIZE], 0, actor, target_x, target_y, target_width, target_height);
}
void
_shell_wm_unmaximize (ShellWM *wm,
MutterWindow *actor,
int target_x,
int target_y,
int target_width,
int target_height)
{
g_signal_emit (wm, shell_wm_signals[UNMAXIMIZE], 0, actor, target_x, target_y, target_width, target_height);
}
void
_shell_wm_map (ShellWM *wm,
MutterWindow *actor)
{
g_signal_emit (wm, shell_wm_signals[MAP], 0, actor);
}
void
_shell_wm_destroy (ShellWM *wm,
MutterWindow *actor)
{
g_signal_emit (wm, shell_wm_signals[DESTROY], 0, actor);
}
/* Called from shell-alttab.c */
void
_shell_wm_begin_alt_tab (ShellWM *wm,
ShellAltTabHandler *handler)
{
g_signal_emit (wm, shell_wm_signals[BEGIN_ALT_TAB], 0, handler);
}
/**
* shell_wm_new:
* @plugin: the #MutterPlugin
*
* Creates a new window management interface by hooking into @plugin.
*
* Return value: the new window-management interface
**/
ShellWM *
shell_wm_new (MutterPlugin *plugin)
{
ShellWM *wm;
wm = g_object_new (SHELL_TYPE_WM, NULL);
wm->plugin = plugin;
return wm;
}