gtk2/gdk/x11/gdkapplaunchcontext-x11.c
2014-02-07 13:32:47 -05:00

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/* gdkapplaunchcontext-x11.c - Gtk+ implementation for GAppLaunchContext
Copyright (C) 2007 Red Hat, Inc.
The Gnome Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The Gnome Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library. If not, see <http://www.gnu.org/licenses/>.
Author: Alexander Larsson <alexl@redhat.com>
*/
#include "config.h"
#include "gdkx11applaunchcontext.h"
#include "gdkapplaunchcontextprivate.h"
#include "gdkscreen.h"
#include "gdkintl.h"
#include "gdkprivate-x11.h"
#include <glib.h>
#include <gio/gdesktopappinfo.h>
#include <string.h>
#include <unistd.h>
static char *
get_display_name (GFile *file,
GFileInfo *info)
{
char *name, *tmp;
name = NULL;
if (info)
name = g_strdup (g_file_info_get_display_name (info));
if (name == NULL)
{
name = g_file_get_basename (file);
if (!g_utf8_validate (name, -1, NULL))
{
tmp = name;
name =
g_uri_escape_string (name, G_URI_RESERVED_CHARS_ALLOWED_IN_PATH, TRUE);
g_free (tmp);
}
}
return name;
}
static GIcon *
get_icon (GFile *file,
GFileInfo *info)
{
GIcon *icon;
icon = NULL;
if (info)
{
icon = g_file_info_get_icon (info);
if (icon)
g_object_ref (icon);
}
return icon;
}
static char *
gicon_to_string (GIcon *icon)
{
GFile *file;
const char *const *names;
if (G_IS_FILE_ICON (icon))
{
file = g_file_icon_get_file (G_FILE_ICON (icon));
if (file)
return g_file_get_path (file);
}
else if (G_IS_THEMED_ICON (icon))
{
names = g_themed_icon_get_names (G_THEMED_ICON (icon));
if (names)
return g_strdup (names[0]);
}
else if (G_IS_EMBLEMED_ICON (icon))
{
GIcon *base;
base = g_emblemed_icon_get_icon (G_EMBLEMED_ICON (icon));
return gicon_to_string (base);
}
return NULL;
}
static void
end_startup_notification (GdkDisplay *display,
const char *startup_id)
{
gdk_x11_display_broadcast_startup_message (display, "remove",
"ID", startup_id,
NULL);
}
/* This should be fairly long, as it's confusing to users if a startup
* ends when it shouldnt (it appears that the startup failed, and
* they have to relaunch the app). Also the timeout only matters when
* there are bugs and apps dont end their own startup sequence.
*
* This timeout is a "last resort" timeout that ignores whether the
* startup sequence has shown activity or not. Metacity and the
* tasklist have smarter, and correspondingly able-to-be-shorter
* timeouts. The reason our timeout is dumb is that we dont monitor
* the sequence (dont use an SnMonitorContext)
*/
#define STARTUP_TIMEOUT_LENGTH_SECONDS 30
#define STARTUP_TIMEOUT_LENGTH (STARTUP_TIMEOUT_LENGTH_SECONDS * 1000)
typedef struct
{
GdkDisplay *display;
char *startup_id;
GTimeVal time;
} StartupNotificationData;
static void
free_startup_notification_data (gpointer data)
{
StartupNotificationData *sn_data = data;
g_object_unref (sn_data->display);
g_free (sn_data->startup_id);
g_free (sn_data);
}
typedef struct
{
GSList *contexts;
guint timeout_id;
} StartupTimeoutData;
static void
free_startup_timeout (void *data)
{
StartupTimeoutData *std;
std = data;
g_slist_foreach (std->contexts, (GFunc) free_startup_notification_data, NULL);
g_slist_free (std->contexts);
if (std->timeout_id != 0)
{
g_source_remove (std->timeout_id);
std->timeout_id = 0;
}
g_free (std);
}
static gboolean
startup_timeout (void *data)
{
StartupTimeoutData *std;
GSList *tmp;
GTimeVal now;
int min_timeout;
std = data;
min_timeout = STARTUP_TIMEOUT_LENGTH;
g_get_current_time (&now);
tmp = std->contexts;
while (tmp != NULL)
{
StartupNotificationData *sn_data;
GSList *next;
double elapsed;
sn_data = tmp->data;
next = tmp->next;
elapsed =
((((double) now.tv_sec - sn_data->time.tv_sec) * G_USEC_PER_SEC +
(now.tv_usec - sn_data->time.tv_usec))) / 1000.0;
if (elapsed >= STARTUP_TIMEOUT_LENGTH)
{
std->contexts = g_slist_remove (std->contexts, sn_data);
end_startup_notification (sn_data->display, sn_data->startup_id);
free_startup_notification_data (sn_data);
}
else
{
min_timeout = MIN (min_timeout, (STARTUP_TIMEOUT_LENGTH - elapsed));
}
tmp = next;
}
if (std->contexts == NULL)
std->timeout_id = 0;
else {
std->timeout_id = g_timeout_add_seconds ((min_timeout + 500)/1000, startup_timeout, std);
g_source_set_name_by_id (std->timeout_id, "[gtk+] startup_timeout");
}
/* always remove this one, but we may have reinstalled another one. */
return G_SOURCE_REMOVE;
}
static void
add_startup_timeout (GdkScreen *screen,
const char *startup_id)
{
StartupTimeoutData *data;
StartupNotificationData *sn_data;
data = g_object_get_data (G_OBJECT (screen), "appinfo-startup-data");
if (data == NULL)
{
data = g_new (StartupTimeoutData, 1);
data->contexts = NULL;
data->timeout_id = 0;
g_object_set_data_full (G_OBJECT (screen), "appinfo-startup-data",
data, free_startup_timeout);
}
sn_data = g_new (StartupNotificationData, 1);
sn_data->display = g_object_ref (gdk_screen_get_display (screen));
sn_data->startup_id = g_strdup (startup_id);
g_get_current_time (&sn_data->time);
data->contexts = g_slist_prepend (data->contexts, sn_data);
if (data->timeout_id == 0) {
data->timeout_id = g_timeout_add_seconds (STARTUP_TIMEOUT_LENGTH_SECONDS,
startup_timeout, data);
g_source_set_name_by_id (data->timeout_id, "[gtk+] startup_timeout");
}
}
static char *
gdk_x11_app_launch_context_get_startup_notify_id (GAppLaunchContext *context,
GAppInfo *info,
GList *files)
{
static int sequence = 0;
GdkDisplay *display;
GdkScreen *screen;
int files_count;
char *description;
char *icon_name;
const char *binary_name;
const char *application_id;
char *screen_str;
char *workspace_str;
GIcon *icon;
guint32 timestamp;
char *startup_id;
GFileInfo *fileinfo;
GdkAppLaunchContext *ctx;
ctx = GDK_APP_LAUNCH_CONTEXT (context);
display = ctx->display;
if (ctx->screen)
screen = ctx->screen;
else
screen = gdk_display_get_default_screen (ctx->display);
fileinfo = NULL;
files_count = g_list_length (files);
if (files_count == 0)
{
description = g_strdup_printf (_("Starting %s"), g_app_info_get_name (info));
}
else if (files_count == 1)
{
gchar *display_name;
if (g_file_is_native (files->data))
fileinfo = g_file_query_info (files->data,
G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME ","
G_FILE_ATTRIBUTE_STANDARD_ICON,
0, NULL, NULL);
display_name = get_display_name (files->data, fileinfo);
description = g_strdup_printf (_("Opening %s"), display_name);
g_free (display_name);
}
else
description = g_strdup_printf (g_dngettext (GETTEXT_PACKAGE,
"Opening %d Item",
"Opening %d Items",
files_count), files_count);
icon_name = NULL;
if (ctx->icon_name)
icon_name = g_strdup (ctx->icon_name);
else
{
icon = NULL;
if (ctx->icon != NULL)
icon = g_object_ref (ctx->icon);
else if (files_count == 1)
icon = get_icon (files->data, fileinfo);
if (icon == NULL)
{
icon = g_app_info_get_icon (info);
if (icon != NULL)
g_object_ref (icon);
}
if (icon != NULL)
{
icon_name = gicon_to_string (icon);
g_object_unref (icon);
}
}
binary_name = g_app_info_get_executable (info);
timestamp = ctx->timestamp;
if (timestamp == GDK_CURRENT_TIME)
timestamp = gdk_x11_display_get_user_time (display);
screen_str = g_strdup_printf ("%d", gdk_screen_get_number (screen));
if (ctx->workspace > -1)
workspace_str = g_strdup_printf ("%d", ctx->workspace);
else
workspace_str = NULL;
if (G_IS_DESKTOP_APP_INFO (info))
application_id = g_desktop_app_info_get_filename (G_DESKTOP_APP_INFO (info));
else
application_id = NULL;
startup_id = g_strdup_printf ("%s-%lu-%s-%s-%d_TIME%lu",
g_get_prgname (),
(unsigned long)getpid (),
g_get_host_name (),
binary_name,
sequence++,
(unsigned long)timestamp);
gdk_x11_display_broadcast_startup_message (display, "new",
"ID", startup_id,
"NAME", g_app_info_get_name (info),
"SCREEN", screen_str,
"BIN", binary_name,
"ICON", icon_name,
"DESKTOP", workspace_str,
"DESCRIPTION", description,
"WMCLASS", NULL, /* FIXME */
"APPLICATION_ID", application_id,
NULL);
g_free (description);
g_free (screen_str);
g_free (workspace_str);
g_free (icon_name);
if (fileinfo)
g_object_unref (fileinfo);
add_startup_timeout (screen, startup_id);
return startup_id;
}
static void
gdk_x11_app_launch_context_launch_failed (GAppLaunchContext *context,
const gchar *startup_notify_id)
{
GdkAppLaunchContext *ctx;
GdkScreen *screen;
StartupTimeoutData *data;
StartupNotificationData *sn_data;
GSList *l;
ctx = GDK_APP_LAUNCH_CONTEXT (context);
if (ctx->screen)
screen = ctx->screen;
else
screen = gdk_display_get_default_screen (ctx->display);
data = g_object_get_data (G_OBJECT (screen), "appinfo-startup-data");
if (data)
{
for (l = data->contexts; l != NULL; l = l->next)
{
sn_data = l->data;
if (strcmp (startup_notify_id, sn_data->startup_id) == 0)
{
data->contexts = g_slist_remove (data->contexts, sn_data);
end_startup_notification (sn_data->display, sn_data->startup_id);
free_startup_notification_data (sn_data);
break;
}
}
if (data->contexts == NULL)
{
g_source_remove (data->timeout_id);
data->timeout_id = 0;
}
}
}
struct _GdkX11AppLaunchContext
{
GdkAppLaunchContext parent_instance;
};
struct _GdkX11AppLaunchContextClass
{
GdkAppLaunchContextClass parent_class;
};
G_DEFINE_TYPE (GdkX11AppLaunchContext, gdk_x11_app_launch_context, GDK_TYPE_APP_LAUNCH_CONTEXT)
static void
gdk_x11_app_launch_context_class_init (GdkX11AppLaunchContextClass *klass)
{
GAppLaunchContextClass *ctx_class = G_APP_LAUNCH_CONTEXT_CLASS (klass);
ctx_class->get_startup_notify_id = gdk_x11_app_launch_context_get_startup_notify_id;
ctx_class->launch_failed = gdk_x11_app_launch_context_launch_failed;
}
static void
gdk_x11_app_launch_context_init (GdkX11AppLaunchContext *ctx)
{
}
GdkAppLaunchContext *
_gdk_x11_display_get_app_launch_context (GdkDisplay *display)
{
GdkAppLaunchContext *ctx;
ctx = g_object_new (GDK_TYPE_X11_APP_LAUNCH_CONTEXT,
"display", display,
NULL);
return ctx;
}