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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
#include "config.h"
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <math.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
#include <X11/extensions/Xfixes.h>
#include <cogl-pango/cogl-pango.h>
#include <canberra.h>
#include <clutter/glx/clutter-glx.h>
#include <clutter/x11/clutter-x11.h>
#include <gdk/gdkx.h>
#include <gio/gio.h>
#include <gjs/gjs-module.h>
#include <girepository.h>
#include <meta/display.h>
#include <meta/util.h>
/* Memory report bits */
#ifdef HAVE_MALLINFO
#include <malloc.h>
#endif
#include "cinnamon-enum-types.h"
#include "cinnamon-global-private.h"
#include "cinnamon-jsapi-compat-private.h"
#include "cinnamon-marshal.h"
#include "cinnamon-perf-log.h"
#include "cinnamon-window-tracker.h"
#include "cinnamon-wm.h"
#include "st.h"
static CinnamonGlobal *the_object = NULL;
static void grab_notify (GtkWidget *widget, gboolean is_grab, gpointer user_data);
static void cinnamon_global_on_gc (GjsContext *context,
CinnamonGlobal *global);
struct _CinnamonGlobal {
GObject parent;
ClutterStage *stage;
Window stage_xwindow;
GdkWindow *stage_gdk_window;
MetaDisplay *meta_display;
GdkDisplay *gdk_display;
Display *xdisplay;
MetaScreen *meta_screen;
GdkScreen *gdk_screen;
/* We use this window to get a notification from GTK+ when
* a widget in our process does a GTK+ grab. See
* http://bugzilla.gnome.org/show_bug.cgi?id=570641
*
* This window is never mapped or shown.
*/
GtkWindow *grab_notifier;
gboolean gtk_grab_active;
CinnamonStageInputMode input_mode;
XserverRegion input_region;
GjsContext *js_context;
MetaPlugin *plugin;
CinnamonWM *wm;
GSettings *settings;
const char *datadir;
const char *imagedir;
const char *userdatadir;
StFocusManager *focus_manager;
guint work_count;
GSList *leisure_closures;
guint leisure_function_id;
/* For sound notifications */
ca_context *sound_context;
guint32 xdnd_timestamp;
gint64 last_gc_end_time;
};
enum {
PROP_0,
PROP_OVERLAY_GROUP,
PROP_SCREEN,
PROP_GDK_SCREEN,
PROP_DISPLAY,
PROP_SCREEN_WIDTH,
PROP_SCREEN_HEIGHT,
PROP_STAGE,
PROP_STAGE_INPUT_MODE,
PROP_WINDOW_GROUP,
PROP_TOP_WINDOW_GROUP,
PROP_BACKGROUND_ACTOR,
PROP_WINDOW_MANAGER,
PROP_SETTINGS,
PROP_DATADIR,
PROP_IMAGEDIR,
PROP_USERDATADIR,
PROP_FOCUS_MANAGER,
};
/* Signals */
enum
{
XDND_POSITION_CHANGED,
XDND_LEAVE,
XDND_ENTER,
NOTIFY_ERROR,
LAST_SIGNAL
};
G_DEFINE_TYPE(CinnamonGlobal, cinnamon_global, G_TYPE_OBJECT);
static guint cinnamon_global_signals [LAST_SIGNAL] = { 0 };
static void
cinnamon_global_set_property(GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
CinnamonGlobal *global = CINNAMON_GLOBAL (object);
switch (prop_id)
{
case PROP_STAGE_INPUT_MODE:
cinnamon_global_set_stage_input_mode (global, g_value_get_enum (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
cinnamon_global_get_property(GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
CinnamonGlobal *global = CINNAMON_GLOBAL (object);
switch (prop_id)
{
case PROP_OVERLAY_GROUP:
g_value_set_object (value, meta_get_overlay_group_for_screen (global->meta_screen));
break;
case PROP_SCREEN:
g_value_set_object (value, global->meta_screen);
break;
case PROP_GDK_SCREEN:
g_value_set_object (value, global->gdk_screen);
break;
case PROP_DISPLAY:
g_value_set_object (value, global->meta_display);
break;
case PROP_SCREEN_WIDTH:
{
int width, height;
meta_screen_get_size (global->meta_screen, &width, &height);
g_value_set_int (value, width);
}
break;
case PROP_SCREEN_HEIGHT:
{
int width, height;
meta_screen_get_size (global->meta_screen, &width, &height);
g_value_set_int (value, height);
}
break;
case PROP_STAGE:
g_value_set_object (value, global->stage);
break;
case PROP_STAGE_INPUT_MODE:
g_value_set_enum (value, global->input_mode);
break;
case PROP_WINDOW_GROUP:
g_value_set_object (value, meta_get_window_group_for_screen (global->meta_screen));
break;
case PROP_TOP_WINDOW_GROUP:
g_value_set_object (value, meta_get_top_window_group_for_screen (global->meta_screen));
break;
case PROP_BACKGROUND_ACTOR:
g_value_set_object (value, meta_get_background_actor_for_screen (global->meta_screen));
break;
case PROP_WINDOW_MANAGER:
g_value_set_object (value, global->wm);
break;
case PROP_SETTINGS:
g_value_set_object (value, global->settings);
break;
case PROP_DATADIR:
g_value_set_string (value, global->datadir);
break;
case PROP_IMAGEDIR:
g_value_set_string (value, global->imagedir);
break;
case PROP_USERDATADIR:
g_value_set_string (value, global->userdatadir);
break;
case PROP_FOCUS_MANAGER:
g_value_set_object (value, global->focus_manager);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
cinnamon_global_init (CinnamonGlobal *global)
{
const char *datadir = g_getenv ("CINNAMON_DATADIR");
const char *cinnamon_js = g_getenv("CINNAMON_JS");
char *imagedir, **search_path;
if (!datadir)
datadir = CINNAMON_DATADIR;
global->datadir = datadir;
/* We make sure imagedir ends with a '/', since the JS won't have
* access to g_build_filename() and so will end up just
* concatenating global.imagedir to a filename.
*/
imagedir = g_build_filename (datadir, "images/", NULL);
if (g_file_test (imagedir, G_FILE_TEST_IS_DIR))
global->imagedir = imagedir;
else
{
g_free (imagedir);
global->imagedir = g_strdup_printf ("%s/", datadir);
}
/* Ensure config dir exists for later use */
global->userdatadir = g_build_filename (g_get_user_data_dir (), "cinnamon", NULL);
g_mkdir_with_parents (global->userdatadir, 0700);
global->settings = g_settings_new ("org.cinnamon");
global->grab_notifier = GTK_WINDOW (gtk_window_new (GTK_WINDOW_TOPLEVEL));
g_signal_connect (global->grab_notifier, "grab-notify", G_CALLBACK (grab_notify), global);
global->gtk_grab_active = FALSE;
global->input_mode = CINNAMON_STAGE_INPUT_MODE_NORMAL;
ca_context_create (&global->sound_context);
ca_context_change_props (global->sound_context, CA_PROP_APPLICATION_NAME, PACKAGE_NAME, CA_PROP_APPLICATION_ID, "org.Cinnamon", NULL);
ca_context_open (global->sound_context);
if (!cinnamon_js)
cinnamon_js = JSDIR;
search_path = g_strsplit (cinnamon_js, ":", -1);
global->js_context = g_object_new (GJS_TYPE_CONTEXT,
"search-path", search_path,
"js-version", "1.8",
"gc-notifications", TRUE,
NULL);
g_signal_connect (global->js_context, "gc", G_CALLBACK (cinnamon_global_on_gc), global);
g_strfreev (search_path);
}
static void
cinnamon_global_finalize (GObject *object)
{
CinnamonGlobal *global = CINNAMON_GLOBAL (object);
g_object_unref (global->js_context);
gtk_widget_destroy (GTK_WIDGET (global->grab_notifier));
g_object_unref (global->settings);
the_object = NULL;
G_OBJECT_CLASS(cinnamon_global_parent_class)->finalize (object);
}
static void
cinnamon_global_class_init (CinnamonGlobalClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->get_property = cinnamon_global_get_property;
gobject_class->set_property = cinnamon_global_set_property;
gobject_class->finalize = cinnamon_global_finalize;
/* Emitted from cinnamon-plugin.c during event handling */
cinnamon_global_signals[XDND_POSITION_CHANGED] =
g_signal_new ("xdnd-position-changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
_cinnamon_marshal_VOID__INT_INT,
G_TYPE_NONE, 2, G_TYPE_INT, G_TYPE_INT);
/* Emitted from cinnamon-plugin.c during event handling */
cinnamon_global_signals[XDND_LEAVE] =
g_signal_new ("xdnd-leave",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/* Emitted from cinnamon-plugin.c during event handling */
cinnamon_global_signals[XDND_ENTER] =
g_signal_new ("xdnd-enter",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
cinnamon_global_signals[NOTIFY_ERROR] =
g_signal_new ("notify-error",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
gi_cclosure_marshal_generic,
G_TYPE_NONE, 2,
G_TYPE_STRING,
G_TYPE_STRING);
g_object_class_install_property (gobject_class,
PROP_OVERLAY_GROUP,
g_param_spec_object ("overlay-group",
"Overlay Group",
"Actor holding objects that appear above the desktop contents",
CLUTTER_TYPE_ACTOR,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_SCREEN,
g_param_spec_object ("screen",
"Screen",
"Metacity screen object for Cinnamon",
META_TYPE_SCREEN,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_GDK_SCREEN,
g_param_spec_object ("gdk-screen",
"GdkScreen",
"Gdk screen object for Cinnamon",
GDK_TYPE_SCREEN,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_SCREEN_WIDTH,
g_param_spec_int ("screen-width",
"Screen Width",
"Screen width, in pixels",
0, G_MAXINT, 1,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_SCREEN_HEIGHT,
g_param_spec_int ("screen-height",
"Screen Height",
"Screen height, in pixels",
0, G_MAXINT, 1,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_DISPLAY,
g_param_spec_object ("display",
"Display",
"Metacity display object for Cinnamon",
META_TYPE_DISPLAY,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_STAGE,
g_param_spec_object ("stage",
"Stage",
"Stage holding the desktop scene graph",
CLUTTER_TYPE_ACTOR,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_STAGE_INPUT_MODE,
g_param_spec_enum ("stage-input-mode",
"Stage input mode",
"The stage input mode",
CINNAMON_TYPE_STAGE_INPUT_MODE,
CINNAMON_STAGE_INPUT_MODE_NORMAL,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_WINDOW_GROUP,
g_param_spec_object ("window-group",
"Window Group",
"Actor holding window actors",
CLUTTER_TYPE_ACTOR,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_TOP_WINDOW_GROUP,
g_param_spec_object ("top-window-group",
"Top Window Group",
"Actor holding popup menus and other actors which must appear on top of the panels",
CLUTTER_TYPE_ACTOR,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_BACKGROUND_ACTOR,
g_param_spec_object ("background-actor",
"Background Actor",
"Actor drawing root window background",
CLUTTER_TYPE_ACTOR,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_WINDOW_MANAGER,
g_param_spec_object ("window-manager",
"Window Manager",
"Window management interface",
CINNAMON_TYPE_WM,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_SETTINGS,
g_param_spec_object ("settings",
"Settings",
"GSettings instance for cinnamon configuration",
G_TYPE_SETTINGS,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_DATADIR,
g_param_spec_string ("datadir",
"Data directory",
"Directory containing cinnamon data files",
NULL,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_IMAGEDIR,
g_param_spec_string ("imagedir",
"Image directory",
"Directory containing cinnamon image files",
NULL,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_USERDATADIR,
g_param_spec_string ("userdatadir",
"User data directory",
"Directory containing cinnamon user data",
NULL,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_FOCUS_MANAGER,
g_param_spec_object ("focus-manager",
"Focus manager",
"Cinnamon's StFocusManager",
ST_TYPE_FOCUS_MANAGER,
G_PARAM_READABLE));
}
/**•
* _cinnamon_global_init: (skip)•
* @first_property_name: the name of the first property
* @...: the value of the first property, followed optionally by more
* name/value pairs, followed by %NULL
*•
* Initializes Cinnamon global singleton with the construction-time
* properties.
*
* There are currently no such properties, so @first_property_name should
* always be %NULL.
*
* This call must be called before cinnamon_global_get() and shouldn't be called
* more than once.
*/
void
_cinnamon_global_init (const char *first_property_name,
...)
{
va_list argument_list;
g_return_if_fail (the_object == NULL);
va_start (argument_list, first_property_name);
the_object = CINNAMON_GLOBAL (g_object_new_valist (CINNAMON_TYPE_GLOBAL,
first_property_name,
argument_list));
va_end (argument_list);
}
/**
* cinnamon_global_get:
*
* Gets the singleton global object that represents the desktop.
*
* Return value: (transfer none): the singleton global object
*/
CinnamonGlobal *
cinnamon_global_get (void)
{
return the_object;
}
static void
focus_window_changed (MetaDisplay *display,
GParamSpec *param,
gpointer user_data)
{
CinnamonGlobal *global = user_data;
if (global->input_mode == CINNAMON_STAGE_INPUT_MODE_FOCUSED &&
meta_display_get_focus_window (display) != NULL)
cinnamon_global_set_stage_input_mode (global, CINNAMON_STAGE_INPUT_MODE_NORMAL);
}
static void
cinnamon_global_focus_stage (CinnamonGlobal *global)
{
XSetInputFocus (global->xdisplay, global->stage_xwindow,
RevertToPointerRoot,
cinnamon_global_get_current_time (global));
}
/**
* cinnamon_global_set_stage_input_mode:
* @global: the #CinnamonGlobal
* @mode: the stage input mode
*
* Sets the input mode of the stage; when @mode is
* %CINNAMON_STAGE_INPUT_MODE_NONREACTIVE, then the stage does not absorb
* any clicks, but just passes them through to underlying windows.
* When it is %CINNAMON_STAGE_INPUT_MODE_NORMAL, then the stage accepts
* clicks in the region defined by
* cinnamon_global_set_stage_input_region() but passes through clicks
* outside that region. When it is %CINNAMON_STAGE_INPUT_MODE_FULLSCREEN,
* the stage absorbs all input.
*
* When the input mode is %CINNAMON_STAGE_INPUT_MODE_FOCUSED, the pointer
* is handled as with %CINNAMON_STAGE_INPUT_MODE_NORMAL, but additionally
* the stage window has the keyboard focus. If the stage loses the
* focus (eg, because the user clicked into a window) the input mode
* will revert to %CINNAMON_STAGE_INPUT_MODE_NORMAL.
*
* Note that whenever a muffin-internal Gtk widget has a pointer grab,
* Cinnamon behaves as though it was in
* %CINNAMON_STAGE_INPUT_MODE_NONREACTIVE, to ensure that the widget gets
* any clicks it is expecting.
*/
void
cinnamon_global_set_stage_input_mode (CinnamonGlobal *global,
CinnamonStageInputMode mode)
{
MetaScreen *screen;
g_return_if_fail (CINNAMON_IS_GLOBAL (global));
screen = meta_plugin_get_screen (global->plugin);
if (mode == CINNAMON_STAGE_INPUT_MODE_NONREACTIVE || global->gtk_grab_active)
meta_empty_stage_input_region (screen);
else if (mode == CINNAMON_STAGE_INPUT_MODE_FULLSCREEN || !global->input_region)
meta_set_stage_input_region (screen, None);
else
meta_set_stage_input_region (screen, global->input_region);
if (mode == CINNAMON_STAGE_INPUT_MODE_FOCUSED)
cinnamon_global_focus_stage (global);
if (mode != global->input_mode)
{
global->input_mode = mode;
g_object_notify (G_OBJECT (global), "stage-input-mode");
}
}
/**
* cinnamon_global_set_cursor:
* @global: A #CinnamonGlobal
* @type: the type of the cursor
*
* Set the cursor on the stage window.
*/
void
cinnamon_global_set_cursor (CinnamonGlobal *global,
CinnamonCursor type)
{
const char *name;
GdkCursor *cursor;
switch (type)
{
case CINNAMON_CURSOR_DND_IN_DRAG:
name = "dnd-none";
break;
case CINNAMON_CURSOR_DND_MOVE:
name = "dnd-move";
break;
case CINNAMON_CURSOR_DND_COPY:
name = "dnd-copy";
break;
case CINNAMON_CURSOR_DND_UNSUPPORTED_TARGET:
name = "dnd-none";
break;
case CINNAMON_CURSOR_POINTING_HAND:
name = "hand";
break;
default:
g_return_if_reached ();
}
cursor = gdk_cursor_new_from_name (global->gdk_display, name);
if (!cursor)
{
GdkCursorType cursor_type;
switch (type)
{
case CINNAMON_CURSOR_DND_IN_DRAG:
cursor_type = GDK_FLEUR;
break;
case CINNAMON_CURSOR_DND_MOVE:
cursor_type = GDK_TARGET;
break;
case CINNAMON_CURSOR_DND_COPY:
cursor_type = GDK_PLUS;
break;
case CINNAMON_CURSOR_POINTING_HAND:
cursor_type = GDK_HAND2;
break;
case CINNAMON_CURSOR_DND_UNSUPPORTED_TARGET:
cursor_type = GDK_X_CURSOR;
break;
default:
g_return_if_reached ();
}
cursor = gdk_cursor_new (cursor_type);
}
gdk_window_set_cursor (global->stage_gdk_window, cursor);
g_object_unref (cursor);
}
/**
* cinnamon_global_unset_cursor:
* @global: A #CinnamonGlobal
*
* Unset the cursor on the stage window.
*/
void
cinnamon_global_unset_cursor (CinnamonGlobal *global)
{
gdk_window_set_cursor (global->stage_gdk_window, NULL);
}
/**
* cinnamon_global_set_stage_input_region:
* @global: the #CinnamonGlobal
* @rectangles: (element-type Meta.Rectangle): a list of #MetaRectangle
* describing the input region.
*
* Sets the area of the stage that is responsive to mouse clicks when
* the stage mode is %CINNAMON_STAGE_INPUT_MODE_NORMAL (but does not change the
* current stage mode).
*/
void
cinnamon_global_set_stage_input_region (CinnamonGlobal *global,
GSList *rectangles)
{
MetaRectangle *rect;
XRectangle *rects;
int nrects, i;
GSList *r;
g_return_if_fail (CINNAMON_IS_GLOBAL (global));
nrects = g_slist_length (rectangles);
rects = g_new (XRectangle, nrects);
for (r = rectangles, i = 0; r; r = r->next, i++)
{
rect = (MetaRectangle *)r->data;
rects[i].x = rect->x;
rects[i].y = rect->y;
rects[i].width = rect->width;
rects[i].height = rect->height;
}
if (global->input_region)
XFixesDestroyRegion (global->xdisplay, global->input_region);
global->input_region = XFixesCreateRegion (global->xdisplay, rects, nrects);
g_free (rects);
/* set_stage_input_mode() will figure out whether or not we
* should actually change the input region right now.
*/
cinnamon_global_set_stage_input_mode (global, global->input_mode);
}
/**
* cinnamon_global_get_stage:
*
* Return value: (transfer none): The default #ClutterStage
*/
ClutterStage *
cinnamon_global_get_stage (CinnamonGlobal *global)
{
return global->stage;
}
/**
* cinnamon_global_get_screen:
*
* Return value: (transfer none): The default #MetaScreen
*/
MetaScreen *
cinnamon_global_get_screen (CinnamonGlobal *global)
{
return global->meta_screen;
}
/**
* cinnamon_global_get_gdk_screen:
*
* Return value: (transfer none): Gdk screen object for Cinnamon
*/
GdkScreen *
cinnamon_global_get_gdk_screen (CinnamonGlobal *global)
{
g_return_val_if_fail (CINNAMON_IS_GLOBAL (global), NULL);
return global->gdk_screen;
}
/**
* cinnamon_global_get_display:
*
* Return value: (transfer none): The default #MetaDisplay
*/
MetaDisplay *
cinnamon_global_get_display (CinnamonGlobal *global)
{
return global->meta_display;
}
/**
* cinnamon_global_get_window_actors:
*
* Gets the list of #MetaWindowActor for the plugin's screen
*
* Return value: (element-type Meta.WindowActor) (transfer none): the list of windows
*/
GList *
cinnamon_global_get_window_actors (CinnamonGlobal *global)
{
g_return_val_if_fail (CINNAMON_IS_GLOBAL (global), NULL);
return meta_get_window_actors (global->meta_screen);
}
static void
global_stage_notify_width (GObject *gobject,
GParamSpec *pspec,
gpointer data)
{
CinnamonGlobal *global = CINNAMON_GLOBAL (data);
g_object_notify (G_OBJECT (global), "screen-width");
}
static void
global_stage_notify_height (GObject *gobject,
GParamSpec *pspec,
gpointer data)
{
CinnamonGlobal *global = CINNAMON_GLOBAL (data);
g_object_notify (G_OBJECT (global), "screen-height");
}
static void
global_stage_before_paint (ClutterStage *stage,
CinnamonGlobal *global)
{
cinnamon_perf_log_event (cinnamon_perf_log_get_default (),
"clutter.stagePaintStart");
}
static void
global_stage_after_paint (ClutterStage *stage,
CinnamonGlobal *global)
{
cinnamon_perf_log_event (cinnamon_perf_log_get_default (),
"clutter.stagePaintDone");
}
static void
constrain_tooltip (StTooltip *tooltip,
const ClutterGeometry *geometry,
ClutterGeometry *adjusted_geometry,
gpointer data)
{
const ClutterGeometry *tip_area = st_tooltip_get_tip_area (tooltip);
CinnamonGlobal *global = cinnamon_global_get ();
MetaScreen *screen = cinnamon_global_get_screen (global);
int n_monitors = meta_screen_get_n_monitors (screen);
int i;
*adjusted_geometry = *geometry;
/* A point that determines what screen we'll constrain to */
int x = tip_area->x + tip_area->width / 2;
int y = tip_area->y + tip_area->height / 2;
for (i = 0; i < n_monitors; i++)
{
MetaRectangle rect;
meta_screen_get_monitor_geometry (screen, i, &rect);
if (x >= rect.x && x < rect.x + rect.width &&
y >= rect.y && y < rect.y + rect.height)
{
if (adjusted_geometry->x + adjusted_geometry->width > rect.x + rect.width)
adjusted_geometry->x = rect.x + rect.width - adjusted_geometry->width;
if (adjusted_geometry->x < rect.x)
adjusted_geometry->x = rect.x;
if (adjusted_geometry->y + adjusted_geometry->height > rect.y + rect.height)
adjusted_geometry->y = rect.y + rect.height - adjusted_geometry->height;
if (adjusted_geometry->y < rect.y)
adjusted_geometry->y = rect.y;
return;
}
}
}
static void
update_font_options (GtkSettings *settings,
ClutterStage *stage)
{
StThemeContext *context;
ClutterBackend *backend;
gint dpi;
gint hinting;
gchar *hint_style_str;
cairo_hint_style_t hint_style = CAIRO_HINT_STYLE_NONE;
gint antialias;
cairo_antialias_t antialias_mode = CAIRO_ANTIALIAS_NONE;
cairo_font_options_t *options;
g_object_get (settings,
"gtk-xft-dpi", &dpi,
"gtk-xft-antialias", &antialias,
"gtk-xft-hinting", &hinting,
"gtk-xft-hintstyle", &hint_style_str,
NULL);
context = st_theme_context_get_for_stage (stage);
if (dpi != -1)
/* GTK stores resolution as 1024 * dots/inch */
st_theme_context_set_resolution (context, dpi / 1024);
else
st_theme_context_set_default_resolution (context);
st_tooltip_set_constrain_func (stage, constrain_tooltip, NULL, NULL);
/* Clutter (as of 0.9) passes comprehensively wrong font options
* override whatever set_font_flags() did above.
*
* http://bugzilla.openedhand.com/show_bug.cgi?id=1456
*/
backend = clutter_get_default_backend ();
options = cairo_font_options_create ();
cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_ON);
if (hinting >= 0 && !hinting)
{
hint_style = CAIRO_HINT_STYLE_NONE;
}
else if (hint_style_str)
{
if (strcmp (hint_style_str, "hintnone") == 0)
hint_style = CAIRO_HINT_STYLE_NONE;
else if (strcmp (hint_style_str, "hintslight") == 0)
hint_style = CAIRO_HINT_STYLE_SLIGHT;
else if (strcmp (hint_style_str, "hintmedium") == 0)
hint_style = CAIRO_HINT_STYLE_MEDIUM;
else if (strcmp (hint_style_str, "hintfull") == 0)
hint_style = CAIRO_HINT_STYLE_FULL;
}
g_free (hint_style_str);
cairo_font_options_set_hint_style (options, hint_style);
/* We don't want to turn on subpixel anti-aliasing; since Clutter
* doesn't currently have the code to support ARGB masks,
* generating them then squashing them back to A8 is pointless.
*/
antialias_mode = (antialias < 0 || antialias) ? CAIRO_ANTIALIAS_GRAY
: CAIRO_ANTIALIAS_NONE;
cairo_font_options_set_antialias (options, antialias_mode);
clutter_backend_set_font_options (backend, options);
cairo_font_options_destroy (options);
}
static void
settings_notify_cb (GtkSettings *settings,
GParamSpec *pspec,
gpointer data)
{
update_font_options (settings, CLUTTER_STAGE (data));
}
static void
cinnamon_fonts_init (ClutterStage *stage)
{
GtkSettings *settings;
CoglPangoFontMap *fontmap;
/* Disable text mipmapping; it causes problems on pre-GEM Intel
* drivers and we should just be rendering text at the right
* size rather than scaling it. If we do effects where we dynamically
* zoom labels, then we might want to reconsider.
*/
fontmap = COGL_PANGO_FONT_MAP (clutter_get_font_map ());
cogl_pango_font_map_set_use_mipmapping (fontmap, FALSE);
settings = gtk_settings_get_default ();
g_object_connect (settings,
"signal::notify::gtk-xft-dpi",
G_CALLBACK (settings_notify_cb), stage,
"signal::notify::gtk-xft-antialias",
G_CALLBACK (settings_notify_cb), stage,
"signal::notify::gtk-xft-hinting",
G_CALLBACK (settings_notify_cb), stage,
"signal::notify::gtk-xft-hintstyle",
G_CALLBACK (settings_notify_cb), stage,
NULL);
update_font_options (settings, stage);
}
/* This is an IBus workaround. The flow of events with IBus is that every time
* it gets gets a key event, it:
*
* Sends it to the daemon via D-Bus asynchronously
* When it gets an reply, synthesizes a new GdkEvent and puts it into the
* GDK event queue with gdk_event_put(), including
* IBUS_FORWARD_MASK = 1 << 25 in the state to prevent a loop.
*
* (Normally, IBus uses the GTK+ key snooper mechanism to get the key
* events early, but since our key events aren't visible to GTK+ key snoopers,
* IBus will instead get the events via the standard
* GtkIMContext.filter_keypress() mechanism.)
*
* There are a number of potential problems here; probably the worst
* problem is that IBus doesn't forward the timestamp with the event
* so that every key event that gets delivered ends up with
* GDK_CURRENT_TIME. This creates some very subtle bugs; for example
* if you have IBus running and a keystroke is used to trigger
* launching an application, focus stealing prevention won't work
* right. http://code.google.com/p/ibus/issues/detail?id=1184
*
* In any case, our normal flow of key events is:
*
* GDK filter function => clutter_x11_handle_event => clutter actor
*
* So, if we see a key event that gets delivered via the GDK event handler
* function - then we know it must be one of these synthesized events, and
* we should push it back to clutter.
*
* To summarize, the full key event flow with IBus is:
*
* GDK filter function
* => Mutter
* => gnome_cinnamon_plugin_xevent_filter()
* => clutter_x11_handle_event()
* => clutter event delivery to actor
* => gtk_im_context_filter_event()
* => sent to IBus daemon
* => response received from IBus daemon
* => gdk_event_put()
* => GDK event handler
* => <this function>
* => clutter_event_put()
* => clutter event delivery to actor
*
* Anything else we see here we just pass on to the normal GDK event handler
* gtk_main_do_event().
*/
static void
gnome_cinnamon_gdk_event_handler (GdkEvent *event_gdk,
gpointer data)
{
if (event_gdk->type == GDK_KEY_PRESS || event_gdk->type == GDK_KEY_RELEASE)
{
ClutterActor *stage;
Window stage_xwindow;
stage = CLUTTER_ACTOR (data);
stage_xwindow = clutter_x11_get_stage_window (CLUTTER_STAGE (stage));
if (GDK_WINDOW_XID (event_gdk->key.window) == stage_xwindow)
{
ClutterDeviceManager *device_manager = clutter_device_manager_get_default ();
ClutterInputDevice *keyboard = clutter_device_manager_get_core_device (device_manager,
CLUTTER_KEYBOARD_DEVICE);
ClutterEvent *event_clutter = clutter_event_new ((event_gdk->type == GDK_KEY_PRESS) ?
CLUTTER_KEY_PRESS : CLUTTER_KEY_RELEASE);
event_clutter->key.time = event_gdk->key.time;
event_clutter->key.flags = CLUTTER_EVENT_NONE;
event_clutter->key.stage = CLUTTER_STAGE (stage);
event_clutter->key.source = NULL;
/* This depends on ClutterModifierType and GdkModifierType being
* identical, which they are currently. (They both match the X
* modifier state in the low 16-bits and have the same extensions.) */
event_clutter->key.modifier_state = event_gdk->key.state;
event_clutter->key.keyval = event_gdk->key.keyval;
event_clutter->key.hardware_keycode = event_gdk->key.hardware_keycode;
event_clutter->key.unicode_value = gdk_keyval_to_unicode (event_clutter->key.keyval);
event_clutter->key.device = keyboard;
clutter_event_put (event_clutter);
clutter_event_free (event_clutter);
return;
}
}
gtk_main_do_event (event_gdk);
}
void
_cinnamon_global_set_plugin (CinnamonGlobal *global,
MetaPlugin *plugin)
{
g_return_if_fail (CINNAMON_IS_GLOBAL (global));
g_return_if_fail (global->plugin == NULL);
global->plugin = plugin;
global->wm = cinnamon_wm_new (plugin);
global->meta_screen = meta_plugin_get_screen (plugin);
global->meta_display = meta_screen_get_display (global->meta_screen);
global->xdisplay = meta_display_get_xdisplay (global->meta_display);
global->gdk_display = gdk_x11_lookup_xdisplay (global->xdisplay);
global->gdk_screen = gdk_display_get_screen (global->gdk_display,
meta_screen_get_screen_number (global->meta_screen));
global->stage = CLUTTER_STAGE (meta_get_stage_for_screen (global->meta_screen));
global->stage_xwindow = clutter_x11_get_stage_window (global->stage);
global->stage_gdk_window = gdk_x11_window_foreign_new_for_display (global->gdk_display,
global->stage_xwindow);
g_signal_connect (global->stage, "notify::width",
G_CALLBACK (global_stage_notify_width), global);
g_signal_connect (global->stage, "notify::height",
G_CALLBACK (global_stage_notify_height), global);
g_signal_connect (global->stage, "paint",
G_CALLBACK (global_stage_before_paint), global);
g_signal_connect_after (global->stage, "paint",
G_CALLBACK (global_stage_after_paint), global);
cinnamon_perf_log_define_event (cinnamon_perf_log_get_default(),
"clutter.stagePaintStart",
"Start of stage page repaint",
"");
cinnamon_perf_log_define_event (cinnamon_perf_log_get_default(),
"clutter.stagePaintDone",
"End of stage page repaint",
"");
g_signal_connect (global->meta_display, "notify::focus-window",
G_CALLBACK (focus_window_changed), global);
cinnamon_fonts_init (global->stage);
gdk_event_handler_set (gnome_cinnamon_gdk_event_handler, global->stage, NULL);
global->focus_manager = st_focus_manager_get_for_stage (global->stage);
}
GjsContext *
_cinnamon_global_get_gjs_context (CinnamonGlobal *global)
{
return global->js_context;
}
/**
* cinnamon_global_begin_modal:
* @global: a #CinnamonGlobal
*
* Grabs the keyboard and mouse to the stage window. The stage will
* receive all keyboard and mouse events until cinnamon_global_end_modal()
* is called. This is used to implement "modes" for Cinnamon, such as the
* overview mode or the "looking glass" debug overlay, that block
* application and normal key shortcuts.
*
* Returns value: %TRUE if we succesfully entered the mode. %FALSE if we couldn't
* enter the mode. Failure may occur because an application has the pointer
* or keyboard grabbed, because Muffin is in a mode itself like moving a
* window or alt-Tab window selection, or because cinnamon_global_begin_modal()
* was previouly called.
*/
gboolean
cinnamon_global_begin_modal (CinnamonGlobal *global,
guint32 timestamp)
{
return meta_plugin_begin_modal (global->plugin, global->stage_xwindow,
None, 0, timestamp);
}
/**
* cinnamon_global_end_modal:
* @global: a #CinnamonGlobal
*
* Undoes the effect of cinnamon_global_begin_modal().
*/
void
cinnamon_global_end_modal (CinnamonGlobal *global,
guint32 timestamp)
{
meta_plugin_end_modal (global->plugin, timestamp);
}
/**
* cinnamon_global_create_pointer_barrier:
* @global: a #CinnamonGlobal
* @x1: left X coordinate
* @y1: top Y coordinate
* @x2: right X coordinate
* @y2: bottom Y coordinate
* @directions: The directions we're allowed to pass through
*
* If supported by X creates a pointer barrier.
*
* Return value: value you can pass to cinnamon_global_destroy_pointer_barrier()
*/
guint32
cinnamon_global_create_pointer_barrier (CinnamonGlobal *global,
int x1, int y1, int x2, int y2,
int directions)
{
#if HAVE_XFIXESCREATEPOINTERBARRIER
return (guint32)
XFixesCreatePointerBarrier (global->xdisplay,
DefaultRootWindow (global->xdisplay),
x1, y1,
x2, y2,
directions,
0, NULL);
#else
return 0;
#endif
}
/**
* cinnamon_global_destroy_pointer_barrier:
* @global: a #CinnamonGlobal
* @barrier: a pointer barrier
*
* Destroys the @barrier created by cinnamon_global_create_pointer_barrier().
*/
void
cinnamon_global_destroy_pointer_barrier (CinnamonGlobal *global, guint32 barrier)
{
#if HAVE_XFIXESCREATEPOINTERBARRIER
g_return_if_fail (barrier > 0);
XFixesDestroyPointerBarrier (global->xdisplay, (PointerBarrier)barrier);
#endif
}
/**
* cinnamon_global_add_extension_importer:
* @target_object_script: JavaScript code evaluating to a target object
* @target_property: Name of property to use for importer
* @directory: Source directory:
* @error: A #GError
*
* This function sets a property named @target_property on the object
* resulting from the evaluation of @target_object_script code, which
* acts as a GJS importer for directory @directory.
*
* Returns: %TRUE on success
*/
gboolean
cinnamon_global_add_extension_importer (CinnamonGlobal *global,
const char *target_object_script,
const char *target_property,
const char *directory,
GError **error)
{
jsval target_object;
JSContext *context = gjs_context_get_native_context (global->js_context);
char *search_path[2] = { 0, 0 };
JS_BeginRequest (context);
// This is a bit of a hack; ideally we'd be able to pass our target
// object directly into this function, but introspection doesn't
// support that at the moment. Instead evaluate a string to get it.
if (!JS_EvaluateScript(context,
JS_GetGlobalObject(context),
target_object_script,
strlen (target_object_script),
"<target_object_script>",
0,
&target_object))
{
char *message;
gjs_log_exception(context,
&message);
g_set_error(error,
G_IO_ERROR,
G_IO_ERROR_FAILED,
"%s", message ? message : "(unknown)");
g_free(message);
goto out_error;
}
if (!JSVAL_IS_OBJECT (target_object))
{
g_error ("cinnamon_global_add_extension_importer: invalid target object");
goto out_error;
}
search_path[0] = (char*)directory;
gjs_define_importer (context, JSVAL_TO_OBJECT (target_object), target_property, (const char **)search_path, FALSE);
JS_EndRequest (context);
return TRUE;
out_error:
JS_EndRequest (context);
return FALSE;
}
/* Code to close all file descriptors before we exec; copied from gspawn.c in GLib.
*
* Authors: Padraig O'Briain, Matthias Clasen, Lennart Poettering
*
* http://bugzilla.gnome.org/show_bug.cgi?id=469231
* http://bugzilla.gnome.org/show_bug.cgi?id=357585
*/
static int
set_cloexec (void *data, gint fd)
{
if (fd >= GPOINTER_TO_INT (data))
fcntl (fd, F_SETFD, FD_CLOEXEC);
return 0;
}
#ifndef HAVE_FDWALK
static int
fdwalk (int (*cb)(void *data, int fd), void *data)
{
gint open_max;
gint fd;
gint res = 0;
#ifdef HAVE_SYS_RESOURCE_H
struct rlimit rl;
#endif
#ifdef __linux__
DIR *d;
if ((d = opendir("/proc/self/fd"))) {
struct dirent *de;
while ((de = readdir(d))) {
glong l;
gchar *e = NULL;
if (de->d_name[0] == '.')
continue;
errno = 0;
l = strtol(de->d_name, &e, 10);
if (errno != 0 || !e || *e)
continue;
fd = (gint) l;
if ((glong) fd != l)
continue;
if (fd == dirfd(d))
continue;
if ((res = cb (data, fd)) != 0)
break;
}
closedir(d);
return res;
}
/* If /proc is not mounted or not accessible we fall back to the old
* rlimit trick */
#endif
#ifdef HAVE_SYS_RESOURCE_H
if (getrlimit(RLIMIT_NOFILE, &rl) == 0 && rl.rlim_max != RLIM_INFINITY)
open_max = rl.rlim_max;
else
#endif
open_max = sysconf (_SC_OPEN_MAX);
for (fd = 0; fd < open_max; fd++)
if ((res = cb (data, fd)) != 0)
break;
return res;
}
#endif
static void
pre_exec_close_fds(void)
{
fdwalk (set_cloexec, GINT_TO_POINTER(3));
}
/**
* cinnamon_global_reexec_self:
* @global: A #CinnamonGlobal
*
* Restart the current process. Only intended for development purposes.
*/
void
cinnamon_global_reexec_self (CinnamonGlobal *global)
{
GPtrArray *arr;
gsize len;
char *buf;
char *buf_p;
char *buf_end;
GError *error = NULL;
/* Linux specific (I think, anyways). */
if (!g_file_get_contents ("/proc/self/cmdline", &buf, &len, &error))
{
g_warning ("failed to get /proc/self/cmdline: %s", error->message);
return;
}
buf_end = buf+len;
arr = g_ptr_array_new ();
/* The cmdline file is NUL-separated */
for (buf_p = buf; buf_p < buf_end; buf_p = buf_p + strlen (buf_p) + 1)
g_ptr_array_add (arr, buf_p);
g_ptr_array_add (arr, NULL);
/* Close all file descriptors other than stdin/stdout/stderr, otherwise
* they will leak and stay open after the exec. In particular, this is
* important for file descriptors that represent mapped graphics buffer
* objects.
*/
pre_exec_close_fds ();
meta_display_unmanage_screen (cinnamon_global_get_display (global),
cinnamon_global_get_screen (global),
cinnamon_global_get_current_time (global));
execvp (arr->pdata[0], (char**)arr->pdata);
g_warning ("failed to reexec: %s", g_strerror (errno));
g_ptr_array_free (arr, TRUE);
}
/**
* cinnamon_global_gc:
* @global: A #CinnamonGlobal
*
* Start a garbage collection process. For more information, see
* https://developer.mozilla.org/En/JS_GC
*/
void
cinnamon_global_gc (CinnamonGlobal *global)
{
JSContext *context = gjs_context_get_native_context (global->js_context);
JS_GC (context);
}
/**
* cinnamon_global_maybe_gc:
* @global: A #CinnamonGlobal
*
* Start a garbage collection process when it would free up enough memory
* to be worth the amount of time it would take
* https://developer.mozilla.org/en/SpiderMonkey/JSAPI_Reference/JS_MaybeGC
*/
void
cinnamon_global_maybe_gc (CinnamonGlobal *global)
{
gjs_context_maybe_gc (global->js_context);
}
static void
cinnamon_global_on_gc (GjsContext *context,
CinnamonGlobal *global)
{
global->last_gc_end_time = g_get_monotonic_time ();
}
/**
* cinnamon_global_get_memory_info:
* @global:
* @meminfo: (out caller-allocates): Output location for memory information
*
* Load process-global data about memory usage.
*/
void
cinnamon_global_get_memory_info (CinnamonGlobal *global,
CinnamonMemoryInfo *meminfo)
{
JSContext *context;
gint64 now;
memset (meminfo, 0, sizeof (*meminfo));
#ifdef HAVE_MALLINFO
{
struct mallinfo info = mallinfo ();
meminfo->glibc_uordblks = info.uordblks;
}
#endif
context = gjs_context_get_native_context (global->js_context);
meminfo->js_bytes = JS_GetGCParameter (JS_GetRuntime (context), JSGC_BYTES);
meminfo->gjs_boxed = (unsigned int) gjs_counter_boxed.value;
meminfo->gjs_gobject = (unsigned int) gjs_counter_object.value;
meminfo->gjs_function = (unsigned int) gjs_counter_function.value;
meminfo->gjs_closure = (unsigned int) gjs_counter_closure.value;
now = g_get_monotonic_time ();
meminfo->last_gc_seconds_ago = (now - global->last_gc_end_time) / G_TIME_SPAN_SECOND;
}
/**
* cinnamon_global_notify_error:
* @global: a #CinnamonGlobal
* @msg: Error message
* @details: Error details
*
* Show a system error notification. Use this function
* when a user-initiated action results in a non-fatal problem
* from causes that may not be under system control. For
* example, an application crash.
*/
void
cinnamon_global_notify_error (CinnamonGlobal *global,
const char *msg,
const char *details)
{
g_signal_emit_by_name (global, "notify-error", msg, details);
}
static void
grab_notify (GtkWidget *widget, gboolean was_grabbed, gpointer user_data)
{
CinnamonGlobal *global = CINNAMON_GLOBAL (user_data);
global->gtk_grab_active = !was_grabbed;
/* Update for the new setting of gtk_grab_active */
cinnamon_global_set_stage_input_mode (global, global->input_mode);
}
/**
* cinnamon_global_init_xdnd:
* @global: the #CinnamonGlobal
*
* Enables tracking of Xdnd events
*/
void cinnamon_global_init_xdnd (CinnamonGlobal *global)
{
Window output_window = meta_get_overlay_window (global->meta_screen);
long xdnd_version = 5;
XChangeProperty (global->xdisplay, global->stage_xwindow,
gdk_x11_get_xatom_by_name ("XdndAware"), XA_ATOM,
32, PropModeReplace, (const unsigned char *)&xdnd_version, 1);
XChangeProperty (global->xdisplay, output_window,
gdk_x11_get_xatom_by_name ("XdndProxy"), XA_WINDOW,
32, PropModeReplace, (const unsigned char *)&global->stage_xwindow, 1);
/*
* XdndProxy is additionally set on the proxy window as verification that the
* XdndProxy property on the target window isn't a left-over
*/
XChangeProperty (global->xdisplay, global->stage_xwindow,
gdk_x11_get_xatom_by_name ("XdndProxy"), XA_WINDOW,
32, PropModeReplace, (const unsigned char *)&global->stage_xwindow, 1);
}
/**
* cinnamon_global_get_pointer:
* @global: the #CinnamonGlobal
* @x: (out): the X coordinate of the pointer, in global coordinates
* @y: (out): the Y coordinate of the pointer, in global coordinates
* @mods: (out): the current set of modifier keys that are pressed down
*
* Gets the pointer coordinates and current modifier key state.
* This is a wrapper around gdk_display_get_pointer() that strips
* out any un-declared modifier flags, to make gjs happy; see
* https://bugzilla.gnome.org/show_bug.cgi?id=597292.
*/
void
cinnamon_global_get_pointer (CinnamonGlobal *global,
int *x,
int *y,
ClutterModifierType *mods)
{
GdkDeviceManager *gmanager;
GdkDevice *gdevice;
GdkScreen *gscreen;
GdkModifierType raw_mods;
gmanager = gdk_display_get_device_manager (global->gdk_display);
gdevice = gdk_device_manager_get_client_pointer (gmanager);
gdk_device_get_position (gdevice, &gscreen, x, y);
gdk_device_get_state (gdevice,
gdk_screen_get_root_window (gscreen),
NULL,
&raw_mods);
*mods = raw_mods & GDK_MODIFIER_MASK;
}
/**
* cinnamon_global_sync_pointer:
* @global: the #CinnamonGlobal
*
* Ensures that clutter is aware of the current pointer position,
* causing enter and leave events to be emitted if the pointer moved
* behind our back (ie, during a pointer grab).
*/
void
cinnamon_global_sync_pointer (CinnamonGlobal *global)
{
int x, y;
GdkDeviceManager *gmanager;
GdkDevice *gdevice;
GdkScreen *gscreen;
GdkModifierType mods;
ClutterMotionEvent event;
gmanager = gdk_display_get_device_manager (global->gdk_display);
gdevice = gdk_device_manager_get_client_pointer (gmanager);
gdk_device_get_position (gdevice, &gscreen, &x, &y);
gdk_device_get_state (gdevice,
gdk_screen_get_root_window (gscreen),
NULL,
&mods);
event.type = CLUTTER_MOTION;
event.time = cinnamon_global_get_current_time (global);
event.flags = 0;
/* This is wrong: we should be setting event.stage to NULL if the
* pointer is not inside the bounds of the stage given the current
* stage_input_mode. For our current purposes however, this works.
*/
event.stage = global->stage;
event.x = x;
event.y = y;
event.modifier_state = mods;
event.axes = NULL;
event.device = clutter_device_manager_get_core_device (clutter_device_manager_get_default (),
CLUTTER_POINTER_DEVICE);
/* Leaving event.source NULL will force clutter to look it up, which
* will generate enter/leave events as a side effect, if they are
* needed. We need a better way to do this though... see
* http://bugzilla.clutter-project.org/show_bug.cgi?id=2615.
*/
event.source = NULL;
clutter_event_put ((ClutterEvent *)&event);
}
/**
* cinnamon_global_get_settings:
* @global: A #CinnamonGlobal
*
* Get the global GSettings instance.
*
* Return value: (transfer none): The GSettings object
*/
GSettings *
cinnamon_global_get_settings (CinnamonGlobal *global)
{
return global->settings;
}
/**
* cinnamon_global_get_current_time:
* @global: A #CinnamonGlobal
*
* Returns: the current X server time from the current Clutter, Gdk, or X
* event. If called from outside an event handler, this may return
* %Clutter.CURRENT_TIME (aka 0), or it may return a slightly
* out-of-date timestamp.
*/
guint32
cinnamon_global_get_current_time (CinnamonGlobal *global)
{
guint32 time;
const ClutterEvent *clutter_event;
/* In case we have a xdnd timestamp use it */
if (global->xdnd_timestamp != 0)
return global->xdnd_timestamp;
/* meta_display_get_current_time() will return the correct time
when handling an X or Gdk event, but will return CurrentTime
from some Clutter event callbacks.
clutter_get_current_event_time() will return the correct time
from a Clutter event callback, but may return an out-of-date
timestamp if called at other times.
So we try meta_display_get_current_time() first, since we
can recognize a "wrong" answer from that, and then fall back
to clutter_get_current_event_time().
*/
time = meta_display_get_current_time (global->meta_display);
if (time != CLUTTER_CURRENT_TIME)
return time;
/*
* We don't use clutter_get_current_event_time as it can give us a
* too old timestamp if there is no current event.
*/
clutter_event = clutter_get_current_event ();
if (clutter_event != NULL)
return clutter_event_get_time (clutter_event);
else
return CLUTTER_CURRENT_TIME;
}
/**
* cinnamon_global_get_pid:
*
* Returns: the pid of the cinnamon process.
*/
pid_t
cinnamon_global_get_pid ()
{
return getpid();
}
/**
* cinnamon_global_create_app_launch_context:
* @global: A #CinnamonGlobal
*
* Create a #GAppLaunchContext set up with the correct timestamp, and
* targeted to activate on the current workspace.
*
* Return value: (transfer full): A new #GAppLaunchContext
*/
GAppLaunchContext *
cinnamon_global_create_app_launch_context (CinnamonGlobal *global)
{
GdkAppLaunchContext *context;
context = gdk_display_get_app_launch_context (global->gdk_display);
gdk_app_launch_context_set_timestamp (context, cinnamon_global_get_current_time (global));
// Make sure that the app is opened on the current workspace even if
// the user switches before it starts
gdk_app_launch_context_set_desktop (context, meta_screen_get_active_workspace_index (global->meta_screen));
return (GAppLaunchContext *)context;
}
typedef struct
{
CinnamonLeisureFunction func;
gpointer user_data;
GDestroyNotify notify;
} LeisureClosure;
static gboolean
run_leisure_functions (gpointer data)
{
CinnamonGlobal *global = data;
GSList *closures;
GSList *iter;
global->leisure_function_id = 0;
/* We started more work since we scheduled the idle */
if (global->work_count > 0)
return FALSE;
/* Previously we called gjs_maybe_gc(). However, it simply doesn't
* trigger often enough. Garbage collection is very fast here, so
* let's just aggressively GC. This will help avoid both heap
* fragmentation, and the GC kicking in when we don't want it to.
*/
gjs_context_gc (global->js_context);
/* No leisure closures, so we are done */
if (global->leisure_closures == NULL)
return FALSE;
closures = global->leisure_closures;
global->leisure_closures = NULL;
for (iter = closures; iter; iter = iter->next)
{
LeisureClosure *closure = closures->data;
closure->func (closure->user_data);
if (closure->notify)
closure->notify (closure->user_data);
g_slice_free (LeisureClosure, closure);
}
g_slist_free (closures);
return FALSE;
}
static void
schedule_leisure_functions (CinnamonGlobal *global)
{
/* This is called when we think we are ready to run leisure functions
* by our own accounting. We try to handle other types of business
* (like ClutterAnimation) by adding a low priority idle function.
*
* This won't work properly if the mainloop goes idle waiting for
* the vertical blanking interval or waiting for work being done
* in another thread.
*/
if (!global->leisure_function_id)
global->leisure_function_id = g_idle_add_full (G_PRIORITY_LOW,
run_leisure_functions,
global, NULL);
}
/**
* cinnamon_global_begin_work:
* @global: the #CinnamonGlobal
*
* Marks that we are currently doing work. This is used to to track
* whether we are busy for the purposes of cinnamon_global_run_at_leisure().
* A count is kept and cinnamon_global_end_work() must be called exactly
* as many times as cinnamon_global_begin_work().
*/
void
cinnamon_global_begin_work (CinnamonGlobal *global)
{
global->work_count++;
}
/**
* cinnamon_global_end_work:
* @global: the #CinnamonGlobal
*
* Marks the end of work that we started with cinnamon_global_begin_work().
* If no other work is ongoing and functions have been added with
* cinnamon_global_run_at_leisure(), they will be run at the next
* opportunity.
*/
void
cinnamon_global_end_work (CinnamonGlobal *global)
{
g_return_if_fail (global->work_count > 0);
global->work_count--;
if (global->work_count == 0)
schedule_leisure_functions (global);
}
/**
* cinnamon_global_run_at_leisure:
* @global: the #CinnamonGlobal
* @func: function to call at leisure
* @user_data: data to pass to @func
* @notify: function to call to free @user_data
*
* Schedules a function to be called the next time Cinnamon is idle.
* Idle means here no animations, no redrawing, and no ongoing background
* work. Since there is currently no way to hook into the Clutter master
* clock and know when is running, the implementation here is somewhat
* approximation. Animations done through Cinnamon's Tweener module will
* be handled properly, but other animations may be detected as terminating
* early if they can be drawn fast enough so that the event loop goes idle
* between frames.
*
* The intent of this function is for performance measurement runs
* where a number of actions should be run serially and each action is
* timed individually. Using this function for other purposes will
* interfere with the ability to use it for performance measurement so
* should be avoided.
*/
void
cinnamon_global_run_at_leisure (CinnamonGlobal *global,
CinnamonLeisureFunction func,
gpointer user_data,
GDestroyNotify notify)
{
LeisureClosure *closure = g_slice_new (LeisureClosure);
closure->func = func;
closure->user_data = user_data;
closure->notify = notify;
global->leisure_closures = g_slist_append (global->leisure_closures,
closure);
if (global->work_count == 0)
schedule_leisure_functions (global);
}
/**
* cinnamon_global_play_theme_sound:
* @global: the #CinnamonGlobal
* @id: an id, used to cancel later (0 if not needed)
* @name: the sound name
*
* Plays a simple sound picked according to Freedesktop sound theme.
* Really just a workaround for libcanberra not being introspected.
*/
void
cinnamon_global_play_theme_sound (CinnamonGlobal *global,
guint id,
const char *name)
{
ca_context_play (global->sound_context, id, CA_PROP_EVENT_ID, name, NULL);
}
/**
* cinnamon_global_cancel_theme_sound:
* @global: the #CinnamonGlobal
* @id: the id previously passed to cinnamon_global_play_theme_sound()
*
* Cancels a sound notification.
*/
void
cinnamon_global_cancel_theme_sound (CinnamonGlobal *global,
guint id)
{
ca_context_cancel (global->sound_context, id);
}
/*
* Process Xdnd events
*
* We pass the position and leave events to JS via a signal
* where the actual drag & drop handling happens.
*
* http://www.freedesktop.org/wiki/Specifications/XDND
*/
gboolean _cinnamon_global_check_xdnd_event (CinnamonGlobal *global,
XEvent *xev)
{
Window output_window = meta_get_overlay_window (global->meta_screen);
if (xev->xany.window != output_window && xev->xany.window != global->stage_xwindow)
return FALSE;
if (xev->xany.type == ClientMessage && xev->xclient.message_type == gdk_x11_get_xatom_by_name ("XdndPosition"))
{
XEvent xevent;
Window src = xev->xclient.data.l[0];
memset (&xevent, 0, sizeof(xevent));
xevent.xany.type = ClientMessage;
xevent.xany.display = global->xdisplay;
xevent.xclient.window = src;
xevent.xclient.message_type = gdk_x11_get_xatom_by_name ("XdndStatus");
xevent.xclient.format = 32;
xevent.xclient.data.l[0] = output_window;
/* flags: bit 0: will we accept the drop? bit 1: do we want more position messages */
xevent.xclient.data.l[1] = 2;
xevent.xclient.data.l[4] = None;
XSendEvent (global->xdisplay, src, False, 0, &xevent);
/* Store the timestamp of the xdnd position event */
global->xdnd_timestamp = xev->xclient.data.l[3];
g_signal_emit_by_name (G_OBJECT (global), "xdnd-position-changed",
(int)(xev->xclient.data.l[2] >> 16), (int)(xev->xclient.data.l[2] & 0xFFFF));
global->xdnd_timestamp = 0;
return TRUE;
}
else if (xev->xany.type == ClientMessage && xev->xclient.message_type == gdk_x11_get_xatom_by_name ("XdndLeave"))
{
g_signal_emit_by_name (G_OBJECT (global), "xdnd-leave");
return TRUE;
}
else if (xev->xany.type == ClientMessage && xev->xclient.message_type == gdk_x11_get_xatom_by_name ("XdndEnter"))
{
g_signal_emit_by_name (G_OBJECT (global), "xdnd-enter");
return TRUE;
}
return FALSE;
}
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