/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ /* * Copyright (c) 2008 Intel Corp. * * Author: Tomas Frydrych * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of the * License, or (at your option) any later version. * * This program 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 * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA * 02111-1307, USA. */ #ifndef MUTTER_PLUGIN_H_ #define MUTTER_PLUGIN_H_ #include "types.h" #include "config.h" #include "compositor.h" #include "compositor-mutter.h" #include /* * This file defines the plugin API. * * Effects plugin is shared library loaded via g_module_open(); it is * recommended that the GModule API is used (otherwise you are on your own to * do proper plugin clean up when the module is unloaded). * * The plugin interface is exported via the MutterPlugin struct. */ typedef struct MutterPlugin MutterPlugin; /* * Feature flags: identify events that the plugin can handle; a plugin can * handle one or more events. */ #define MUTTER_PLUGIN_MINIMIZE (1<<0) #define MUTTER_PLUGIN_MAXIMIZE (1<<1) #define MUTTER_PLUGIN_UNMAXIMIZE (1<<2) #define MUTTER_PLUGIN_MAP (1<<3) #define MUTTER_PLUGIN_DESTROY (1<<4) #define MUTTER_PLUGIN_SWITCH_WORKSPACE (1<<5) #define MUTTER_PLUGIN_ALL_EFFECTS (~0) struct MutterPlugin { /* * Version information; the first three numbers match the Metacity version * with which the plugin was compiled (see clutter-plugins/simple.c for sample * code). */ guint version_major; guint version_minor; guint version_micro; /* * Version of the plugin API; this is unrelated to the matacity version * per se. The API version is checked by the plugin manager and must match * the one used by it (see clutter-plugins/simple.c for sample code). */ guint version_api; #ifndef MUTTER_BUILDING_PLUGIN const #endif gchar *name; /* Human-readable name for UI */ gulong features; /* or-ed feature flags */ /* * This function is called once the plugin has been loaded. * * @params is a string containing additional parameters for the plugin and is * specified after the plugin name in the gconf database, separated by a * colon. * * The following parameter tokens need to be handled by all * plugins: * * 'debug' * Indicates running in debug mode; the plugin * might want to print useful debug info, or * extend effect duration, etc. * * 'disable: ...;' * * The disable token indicates that the effects * listed after the colon should be disabled. * * The list is comma-separated, terminated by a * semicolon and consisting of the following * tokens: * * minimize * maximize * unmaximize * map * destroy * switch-workspace * * FIXME: ^^^ Instead of configuring in terms of what should be * disabled, and needing a mechanism for coping with the user * mistakenly not disabling the right things, it might be neater * if plugins were enabled on a per effect basis in the first * place. I.e. in gconf we could have effect:plugin key value * pairs. */ gboolean (*do_init) (const char *params); /* * Event handlers * * Plugins must not make any special assumptions about the nature of * ClutterActor, as the implementation details can change. * * Plugins must restore actor properties on completion (i.e., fade effects * must restore opacity back to the original value, scale effects scale, * etc.). * * On completion, each event handler must call the manager completed() * callback function. */ void (*minimize) (MutterWindow *actor); void (*maximize) (MutterWindow *actor, gint x, gint y, gint width, gint height); void (*unmaximize) (MutterWindow *actor, gint x, gint y, gint width, gint height); void (*map) (MutterWindow *actor); void (*destroy) (MutterWindow *actor); /* * Each actor in the list has a workspace number attached to it using * g_object_set_data() with key MUTTER_PLUGIN_WORKSPACE_KEY; * workspace < 0 indicates the window is sticky (i.e., on all desktops). * TODO: Add accessor for sticky bit in new MutterWindow structure */ void (*switch_workspace) (const GList **actors, gint from, gint to, MetaMotionDirection direction); /* * Called if an effect should be killed prematurely; the plugin must * call the completed() callback as if the effect terminated naturally. * The events parameter is a bitmask indicating which effects are to be * killed. */ void (*kill_effect) (MutterWindow *actor, gulong events); /* * The plugin manager will call this function when module should be reloaded. * This happens, for example, when the parameters for the plugin changed. */ gboolean (*reload) (const char *params); /* General XEvent filter. This is fired *before* metacity itself handles * an event. Return TRUE to block any further processing. */ gboolean (*xevent_filter) (XEvent *event); /* List of PluginWorkspaceRectangles defining the geometry of individual * workspaces. */ GList *work_areas; void *plugin_private; /* Plugin private data go here; use the plugin init * function to allocate and initialize any private * data. */ /* Private; manager private data. */ void *manager_private; }; void mutter_plugin_effect_completed (MutterPlugin *plugin, MutterWindow *actor, unsigned long event); ClutterActor * mutter_plugin_get_overlay_group (MutterPlugin *plugin); ClutterActor * mutter_plugin_get_stage (MutterPlugin *plugin); void mutter_plugin_query_screen_size (MutterPlugin *plugin, int *width, int *height); ClutterActor * mutter_plugin_get_overlay_group (MutterPlugin *plugin); ClutterActor * mutter_plugin_get_stage (MutterPlugin *plugin); void mutter_plugin_set_stage_reactive (MutterPlugin *plugin, gboolean reactive); void mutter_plugin_set_stage_input_area (MutterPlugin *plugin, gint x, gint y, gint width, gint height); #endif /* MUTTER_PLUGIN_H_ */