void
meta_plugin_manager_initialize (MetaPluginManager *plugin_mgr)
{
GList *iter;
if (!plugin_mgr->plugins)
{
/*
* If no plugins are specified, load the default plugin.
*/
meta_plugin_manager_load (plugin_mgr, "default");
}
for (iter = plugin_mgr->plugins; iter; iter = iter->next)
{
MetaPlugin *plugin = (MetaPlugin*) iter->data;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
g_object_set (plugin,
"screen", plugin_mgr->screen,
NULL);
if (klass->start)
klass->start (plugin);
}
}
/*
* The public method that the compositor hooks into for desktop switching.
*
* Returns TRUE if the plugin handled the event type (i.e.,
* if the return value is FALSE, there will be no subsequent call to the
* manager completed() callback, and the compositor must ensure that any
* appropriate post-effect cleanup is carried out.
*/
gboolean
meta_plugin_manager_switch_workspace (MetaPluginManager *plugin_mgr,
gint from,
gint to,
MetaMotionDirection direction)
{
MetaPlugin *plugin = plugin_mgr->plugin;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
MetaDisplay *display = meta_screen_get_display (plugin_mgr->screen);
gboolean retval = FALSE;
if (display->display_opening)
return FALSE;
if (klass->switch_workspace)
{
retval = TRUE;
meta_plugin_manager_kill_switch_workspace (plugin_mgr);
_meta_plugin_effect_started (plugin);
klass->switch_workspace (plugin, from, to, direction);
}
return retval;
}
static void
meta_plugin_set_features (MetaPlugin *plugin)
{
MetaPluginPrivate *priv = plugin->priv;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
priv->features = 0;
/*
* Feature flags: identify events that the plugin can handle; a plugin can
* handle one or more events.
*/
if (klass->minimize)
priv->features |= META_PLUGIN_MINIMIZE;
if (klass->maximize)
priv->features |= META_PLUGIN_MAXIMIZE;
if (klass->unmaximize)
priv->features |= META_PLUGIN_UNMAXIMIZE;
if (klass->map)
priv->features |= META_PLUGIN_MAP;
if (klass->destroy)
priv->features |= META_PLUGIN_DESTROY;
if (klass->switch_workspace)
priv->features |= META_PLUGIN_SWITCH_WORKSPACE;
if (klass->tile)
priv->features |= META_PLUGIN_TILE;
}
static void
meta_plugin_manager_kill_switch_workspace (MetaPluginManager *plugin_mgr)
{
MetaPlugin *plugin = plugin_mgr->plugin;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
if (klass->kill_switch_workspace)
klass->kill_switch_workspace (plugin);
}
static void
meta_plugin_manager_kill_window_effects (MetaPluginManager *plugin_mgr,
MetaWindowActor *actor)
{
MetaPlugin *plugin = plugin_mgr->plugin;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
if (klass->kill_window_effects)
klass->kill_window_effects (plugin, actor);
}
const MetaPluginInfo *
meta_plugin_get_info (MetaPlugin *plugin)
{
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
if (klass && klass->plugin_info)
return klass->plugin_info (plugin);
return NULL;
}
void
meta_plugin_manager_confirm_display_change (MetaPluginManager *plugin_mgr)
{
MetaPlugin *plugin = plugin_mgr->plugin;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
if (klass->confirm_display_change)
return klass->confirm_display_change (plugin);
else
return meta_plugin_complete_display_change (plugin, TRUE);
}
gboolean
_meta_plugin_xevent_filter (MetaPlugin *plugin,
XEvent *xev)
{
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
if (klass->xevent_filter && klass->xevent_filter (plugin, xev))
return TRUE;
else
return clutter_x11_handle_event (xev) != CLUTTER_X11_FILTER_CONTINUE;
}
gboolean
meta_plugin_manager_filter_keybinding (MetaPluginManager *plugin_mgr,
MetaKeyBinding *binding)
{
MetaPlugin *plugin = plugin_mgr->plugin;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
if (klass->keybinding_filter)
return klass->keybinding_filter (plugin, binding);
return FALSE;
}
/*
* The public method that the compositor hooks into for maximize and unmaximize
* events.
*
* Returns TRUE if the plugin handled the event type (i.e.,
* if the return value is FALSE, there will be no subsequent call to the
* manager completed() callback, and the compositor must ensure that any
* appropriate post-effect cleanup is carried out.
*/
gboolean
meta_plugin_manager_event_maximize (MetaPluginManager *plugin_mgr,
MetaWindowActor *actor,
unsigned long event,
gint target_x,
gint target_y,
gint target_width,
gint target_height)
{
MetaPlugin *plugin = plugin_mgr->plugin;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
MetaDisplay *display = meta_screen_get_display (plugin_mgr->screen);
gboolean retval = FALSE;
if (display->display_opening)
return FALSE;
switch (event)
{
case META_PLUGIN_MAXIMIZE:
if (klass->maximize)
{
retval = TRUE;
meta_plugin_manager_kill_window_effects (plugin_mgr,
actor);
_meta_plugin_effect_started (plugin);
klass->maximize (plugin, actor,
target_x, target_y,
target_width, target_height);
}
break;
case META_PLUGIN_UNMAXIMIZE:
if (klass->unmaximize)
{
retval = TRUE;
meta_plugin_manager_kill_window_effects (plugin_mgr,
actor);
_meta_plugin_effect_started (plugin);
klass->unmaximize (plugin, actor,
target_x, target_y,
target_width, target_height);
}
break;
default:
g_warning ("Incorrect handler called for event %lu", event);
}
return retval;
}
/*
* The public method that the compositor hooks into for desktop switching.
*
* Returns TRUE if at least one of the plugins handled the event type (i.e.,
* if the return value is FALSE, there will be no subsequent call to the
* manager completed() callback, and the compositor must ensure that any
* appropriate post-effect cleanup is carried out.
*/
gboolean
meta_plugin_manager_xevent_filter (MetaPluginManager *plugin_mgr,
XEvent *xev)
{
GList *l;
gboolean have_plugin_xevent_func;
if (!plugin_mgr)
return FALSE;
l = plugin_mgr->plugins;
/* We need to make sure that clutter gets certain events, like
* ConfigureNotify on the stage window. If there is a plugin that
* provides an xevent_filter function, then it's the responsibility
* of that plugin to pass events to Clutter. Otherwise, we send the
* event directly to Clutter ourselves.
*
* What happens if there are two plugins with xevent_filter functions
* is undefined; in general, multiple competing plugins are something
* we don't support well or care much about.
*
* FIXME: Really, we should just always handle sending the event to
* clutter if a plugin doesn't report the event as handled by
* returning TRUE, but it doesn't seem worth breaking compatibility
* of the plugin interface right now to achieve this; the way it is
* now works fine in practice.
*/
have_plugin_xevent_func = FALSE;
while (l)
{
MetaPlugin *plugin = l->data;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
if (klass->xevent_filter)
{
have_plugin_xevent_func = TRUE;
if (klass->xevent_filter (plugin, xev) == TRUE)
return TRUE;
}
l = l->next;
}
if (!have_plugin_xevent_func)
return clutter_x11_handle_event (xev) != CLUTTER_X11_FILTER_CONTINUE;
return FALSE;
}
MetaPluginManager *
meta_plugin_manager_new (MetaScreen *screen)
{
MetaPluginManager *plugin_mgr;
MetaPluginClass *klass;
MetaPlugin *plugin;
plugin_mgr = g_new0 (MetaPluginManager, 1);
plugin_mgr->screen = screen;
plugin_mgr->plugin = plugin = g_object_new (plugin_type, "screen", screen, NULL);
klass = META_PLUGIN_GET_CLASS (plugin);
if (klass->start)
klass->start (plugin);
return plugin_mgr;
}
static void
meta_plugin_manager_kill_switch_workspace (MetaPluginManager *plugin_mgr)
{
GList *l = plugin_mgr->plugins;
while (l)
{
MetaPlugin *plugin = l->data;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
if (!meta_plugin_disabled (plugin)
&& (meta_plugin_features (plugin) & META_PLUGIN_SWITCH_WORKSPACE)
&& klass->kill_switch_workspace)
klass->kill_switch_workspace (plugin);
l = l->next;
}
}
static void
meta_plugin_manager_kill_window_effects (MetaPluginManager *plugin_mgr,
MetaWindowActor *actor)
{
GList *l = plugin_mgr->plugins;
while (l)
{
MetaPlugin *plugin = l->data;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
if (!meta_plugin_disabled (plugin)
&& klass->kill_window_effects)
klass->kill_window_effects (plugin, actor);
l = l->next;
}
}
/*
* The public method that the compositor hooks into for desktop switching.
*
* Returns TRUE if the plugin handled the event type (i.e.,
* if the return value is FALSE, there will be no subsequent call to the
* manager completed() callback, and the compositor must ensure that any
* appropriate post-effect cleanup is carried out.
*/
gboolean
meta_plugin_manager_xevent_filter (MetaPluginManager *plugin_mgr,
XEvent *xev)
{
MetaPlugin *plugin = plugin_mgr->plugin;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
/* We need to make sure that clutter gets certain events, like
* ConfigureNotify on the stage window. If there is a plugin that
* provides an xevent_filter function, then it's the responsibility
* of that plugin to pass events to Clutter. Otherwise, we send the
* event directly to Clutter ourselves.
*/
if (klass->xevent_filter)
return klass->xevent_filter (plugin, xev);
else
return clutter_x11_handle_event (xev) != CLUTTER_X11_FILTER_CONTINUE;
}
gboolean
meta_plugin_manager_hide_tile_preview (MetaPluginManager *plugin_mgr)
{
MetaPlugin *plugin = plugin_mgr->plugin;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
MetaDisplay *display = meta_screen_get_display (plugin_mgr->screen);
if (display->display_opening)
return FALSE;
if (klass->hide_tile_preview)
{
klass->hide_tile_preview (plugin);
return TRUE;
}
return FALSE;
}
gboolean
meta_plugin_manager_show_tile_preview (MetaPluginManager *plugin_mgr,
MetaWindow *window,
MetaRectangle *tile_rect,
int tile_monitor_number)
{
MetaPlugin *plugin = plugin_mgr->plugin;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
MetaDisplay *display = meta_screen_get_display (plugin_mgr->screen);
if (display->display_opening)
return FALSE;
if (klass->show_tile_preview)
{
klass->show_tile_preview (plugin, window, tile_rect, tile_monitor_number);
return TRUE;
}
return FALSE;
}
MetaPluginManager *
meta_plugin_manager_new (MetaScreen *screen)
{
MetaPluginManager *plugin_mgr;
MetaPluginClass *klass;
MetaPlugin *plugin;
MetaMonitorManager *monitors;
plugin_mgr = g_new0 (MetaPluginManager, 1);
plugin_mgr->screen = screen;
plugin_mgr->plugin = plugin = g_object_new (plugin_type, "screen", screen, NULL);
klass = META_PLUGIN_GET_CLASS (plugin);
if (klass->start)
klass->start (plugin);
monitors = meta_monitor_manager_get ();
g_signal_connect (monitors, "confirm-display-change",
G_CALLBACK (on_confirm_display_change), plugin_mgr);
return plugin_mgr;
}
/*
* The public method that the compositor hooks into for desktop switching.
*
* Returns TRUE if at least one of the plugins handled the event type (i.e.,
* if the return value is FALSE, there will be no subsequent call to the
* manager completed() callback, and the compositor must ensure that any
* appropriate post-effect cleanup is carried out.
*/
gboolean
meta_plugin_manager_switch_workspace (MetaPluginManager *plugin_mgr,
gint from,
gint to,
MetaMotionDirection direction)
{
GList *l = plugin_mgr->plugins;
gboolean retval = FALSE;
MetaDisplay *display = meta_screen_get_display (plugin_mgr->screen);
if (display->display_opening)
return FALSE;
while (l)
{
MetaPlugin *plugin = l->data;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
if (!meta_plugin_disabled (plugin) &&
(meta_plugin_features (plugin) & META_PLUGIN_SWITCH_WORKSPACE))
{
if (klass->switch_workspace)
{
retval = TRUE;
meta_plugin_manager_kill_switch_workspace (plugin_mgr);
_meta_plugin_effect_started (plugin);
klass->switch_workspace (plugin, from, to, direction);
}
}
l = l->next;
}
return retval;
}
/*
* Public method that the compositor hooks into for events that require
* no additional parameters.
*
* Returns TRUE if at least one of the plugins handled the event type (i.e.,
* if the return value is FALSE, there will be no subsequent call to the
* manager completed() callback, and the compositor must ensure that any
* appropriate post-effect cleanup is carried out.
*/
gboolean
meta_plugin_manager_event_simple (MetaPluginManager *plugin_mgr,
MetaWindowActor *actor,
unsigned long event)
{
GList *l = plugin_mgr->plugins;
gboolean retval = FALSE;
MetaDisplay *display = meta_screen_get_display (plugin_mgr->screen);
if (display->display_opening)
return FALSE;
while (l)
{
MetaPlugin *plugin = l->data;
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
if (!meta_plugin_disabled (plugin) &&
(meta_plugin_features (plugin) & event))
{
retval = TRUE;
switch (event)
{
case META_PLUGIN_MINIMIZE:
if (klass->minimize)
{
meta_plugin_manager_kill_window_effects (
plugin_mgr,
actor);
_meta_plugin_effect_started (plugin);
klass->minimize (plugin, actor);
}
break;
case META_PLUGIN_MAP:
if (klass->map)
{
meta_plugin_manager_kill_window_effects (
plugin_mgr,
actor);
_meta_plugin_effect_started (plugin);
klass->map (plugin, actor);
}
break;
case META_PLUGIN_DESTROY:
if (klass->destroy)
{
_meta_plugin_effect_started (plugin);
klass->destroy (plugin, actor);
}
break;
default:
g_warning ("Incorrect handler called for event %lu", event);
}
}
l = l->next;
}
return retval;
}
/**
* meta_compositor_process_event: (skip)
*
*/
gboolean
meta_compositor_process_event (MetaCompositor *compositor,
XEvent *event,
MetaWindow *window)
{
if (compositor->modal_plugin && is_grabbed_event (event))
{
MetaPluginClass *klass = META_PLUGIN_GET_CLASS (compositor->modal_plugin);
if (klass->xevent_filter)
klass->xevent_filter (compositor->modal_plugin, event);
/* We always consume events even if the plugin says it didn't handle them;
* exclusive is exclusive */
return TRUE;
}
if (window)
{
MetaCompScreen *info;
MetaScreen *screen;
screen = meta_window_get_screen (window);
info = meta_screen_get_compositor_data (screen);
if (meta_plugin_manager_xevent_filter (info->plugin_mgr, event))
{
DEBUG_TRACE ("meta_compositor_process_event (filtered,window==NULL)\n");
return TRUE;
}
}
else
{
GSList *l;
l = meta_display_get_screens (compositor->display);
while (l)
{
MetaScreen *screen = l->data;
MetaCompScreen *info;
info = meta_screen_get_compositor_data (screen);
if (meta_plugin_manager_xevent_filter (info->plugin_mgr, event))
{
DEBUG_TRACE ("meta_compositor_process_event (filtered,window==NULL)\n");
return TRUE;
}
l = l->next;
}
}
switch (event->type)
{
case PropertyNotify:
process_property_notify (compositor, (XPropertyEvent *) event, window);
break;
default:
if (event->type == meta_display_get_damage_event_base (compositor->display) + XDamageNotify)
{
/* Core code doesn't handle damage events, so we need to extract the MetaWindow
* ourselves
*/
if (window == NULL)
{
Window xwin = ((XDamageNotifyEvent *) event)->drawable;
window = meta_display_lookup_x_window (compositor->display, xwin);
}
DEBUG_TRACE ("meta_compositor_process_event (process_damage)\n");
process_damage (compositor, (XDamageNotifyEvent *) event, window);
}
break;
}
/* Clutter needs to know about MapNotify events otherwise it will
think the stage is invisible */
if (event->type == MapNotify)
clutter_x11_handle_event (event);
/* The above handling is basically just "observing" the events, so we return
* FALSE to indicate that the event should not be filtered out; if we have
* GTK+ windows in the same process, GTK+ needs the ConfigureNotify event, for example.
*/
return FALSE;
}