960 lines
27 KiB
C
960 lines
27 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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#include "config.h"
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#include "st.h"
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#include "shell-app-private.h"
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#include "shell-global.h"
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#include "shell-enum-types.h"
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#include "display.h"
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#include "st.h"
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#include "shell-window-tracker-private.h"
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#include <string.h>
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/* This is mainly a memory usage optimization - the user is going to
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* be running far fewer of the applications at one time than they have
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* installed. But it also just helps keep the code more logically
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* separated.
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*/
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typedef struct {
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guint refcount;
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/* Last time the user interacted with any of this application's windows */
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guint32 last_user_time;
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/* Signal connection to dirty window sort list on workspace changes */
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guint workspace_switch_id;
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GSList *windows;
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/* Whether or not we need to resort the windows; this is done on demand */
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gboolean window_sort_stale : 1;
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} ShellAppRunningState;
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/**
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* SECTION:shell-app
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* @short_description: Object representing an application
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*
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* This object wraps a #ShellAppInfo, providing methods and signals
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* primarily useful for running applications.
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*/
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struct _ShellApp
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{
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GObject parent;
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int started_on_workspace;
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ShellAppState state;
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ShellAppInfo *info;
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ShellAppRunningState *running_state;
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};
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G_DEFINE_TYPE (ShellApp, shell_app, G_TYPE_OBJECT);
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enum {
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PROP_0,
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PROP_STATE
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};
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enum {
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WINDOWS_CHANGED,
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LAST_SIGNAL
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};
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static guint shell_app_signals[LAST_SIGNAL] = { 0 };
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static void create_running_state (ShellApp *app);
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static void unref_running_state (ShellAppRunningState *state);
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static void
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shell_app_get_property (GObject *gobject,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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ShellApp *app = SHELL_APP (gobject);
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switch (prop_id)
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{
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case PROP_STATE:
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g_value_set_enum (value, app->state);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
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break;
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}
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}
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const char *
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shell_app_get_id (ShellApp *app)
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{
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return shell_app_info_get_id (app->info);
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}
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/**
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* shell_app_create_icon_texture:
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*
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* Look up the icon for this application, and create a #ClutterTexture
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* for it at the given size.
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*
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* Return value: (transfer none): A floating #ClutterActor
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*/
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ClutterActor *
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shell_app_create_icon_texture (ShellApp *app,
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float size)
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{
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return shell_app_info_create_icon_texture (app->info, size);
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}
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typedef struct {
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ShellApp *app;
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int size;
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} CreateFadedIconData;
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static CoglHandle
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shell_app_create_faded_icon_cpu (StTextureCache *cache,
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const char *key,
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void *datap,
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GError **error)
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{
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CreateFadedIconData *data = datap;
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ShellApp *app;
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GdkPixbuf *pixbuf;
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int size;
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CoglHandle texture;
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gint width, height, rowstride;
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guint8 n_channels;
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gboolean have_alpha;
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gint fade_start;
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gint fade_range;
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guint i, j;
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guint pixbuf_byte_size;
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guint8 *orig_pixels;
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guint8 *pixels;
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GIcon *icon;
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GtkIconInfo *info;
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app = data->app;
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size = data->size;
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icon = shell_app_info_get_icon (app->info);
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if (icon == NULL)
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return COGL_INVALID_HANDLE;
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info = gtk_icon_theme_lookup_by_gicon (gtk_icon_theme_get_default (),
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icon, (int) (size + 0.5),
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GTK_ICON_LOOKUP_FORCE_SIZE);
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g_object_unref (icon);
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if (info == NULL)
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return COGL_INVALID_HANDLE;
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pixbuf = gtk_icon_info_load_icon (info, NULL);
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gtk_icon_info_free (info);
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if (pixbuf == NULL)
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return COGL_INVALID_HANDLE;
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width = gdk_pixbuf_get_width (pixbuf);
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height = gdk_pixbuf_get_height (pixbuf);
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rowstride = gdk_pixbuf_get_rowstride (pixbuf);
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n_channels = gdk_pixbuf_get_n_channels (pixbuf);
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orig_pixels = gdk_pixbuf_get_pixels (pixbuf);
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have_alpha = gdk_pixbuf_get_has_alpha (pixbuf);
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pixbuf_byte_size = (height - 1) * rowstride +
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+ width * ((n_channels * gdk_pixbuf_get_bits_per_sample (pixbuf) + 7) / 8);
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pixels = g_malloc0 (rowstride * height);
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memcpy (pixels, orig_pixels, pixbuf_byte_size);
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fade_start = width / 2;
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fade_range = width - fade_start;
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for (i = fade_start; i < width; i++)
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{
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for (j = 0; j < height; j++)
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{
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guchar *pixel = &pixels[j * rowstride + i * n_channels];
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float fade = 1.0 - ((float) i - fade_start) / fade_range;
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pixel[0] = 0.5 + pixel[0] * fade;
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pixel[1] = 0.5 + pixel[1] * fade;
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pixel[2] = 0.5 + pixel[2] * fade;
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if (have_alpha)
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pixel[3] = 0.5 + pixel[3] * fade;
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}
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}
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texture = cogl_texture_new_from_data (width,
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height,
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COGL_TEXTURE_NONE,
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have_alpha ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888,
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COGL_PIXEL_FORMAT_ANY,
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rowstride,
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pixels);
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g_free (pixels);
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g_object_unref (pixbuf);
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return texture;
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}
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/**
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* shell_app_get_faded_icon:
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* @app: A #ShellApp
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* @size: Size in pixels
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*
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* Return an actor with a horizontally faded look.
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*
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* Return value: (transfer none): A floating #ClutterActor, or %NULL if no icon
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*/
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ClutterActor *
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shell_app_get_faded_icon (ShellApp *app, float size)
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{
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MetaWindow *window;
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CoglHandle texture;
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ClutterActor *result;
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char *cache_key;
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CreateFadedIconData data;
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/* Punt for WINDOW types for now...easier to reuse the property tracking bits,
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* and this helps us visually distinguish app-tracked from not.
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*/
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window = shell_app_info_get_source_window (app->info);
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if (window)
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{
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return st_texture_cache_bind_pixbuf_property (st_texture_cache_get_default (),
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G_OBJECT (window),
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"icon");
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}
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cache_key = g_strdup_printf ("faded-icon:%s,size=%f", shell_app_get_id (app), size);
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data.app = app;
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data.size = (int) (0.5 + size);
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texture = st_texture_cache_load (st_texture_cache_get_default (),
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cache_key,
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ST_TEXTURE_CACHE_POLICY_FOREVER,
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shell_app_create_faded_icon_cpu,
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&data,
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NULL);
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g_free (cache_key);
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if (texture != COGL_INVALID_HANDLE)
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{
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result = clutter_texture_new ();
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clutter_texture_set_cogl_texture (CLUTTER_TEXTURE (result), texture);
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}
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else
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{
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result = clutter_texture_new ();
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g_object_set (result, "opacity", 0, "width", size, "height", size, NULL);
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}
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return result;
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}
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char *
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shell_app_get_name (ShellApp *app)
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{
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return shell_app_info_get_name (app->info);
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}
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char *
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shell_app_get_description (ShellApp *app)
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{
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return shell_app_info_get_description (app->info);
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}
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gboolean
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shell_app_is_transient (ShellApp *app)
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{
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return shell_app_info_is_transient (app->info);
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}
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typedef struct {
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MetaWorkspace *workspace;
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GSList **transients;
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} CollectTransientsData;
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static gboolean
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collect_transients_on_workspace (MetaWindow *window,
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gpointer datap)
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{
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CollectTransientsData *data = datap;
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if (data->workspace && meta_window_get_workspace (window) != data->workspace)
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return TRUE;
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*data->transients = g_slist_prepend (*data->transients, window);
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return TRUE;
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}
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/* The basic idea here is that when we're targeting a window,
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* if it has transients we want to pick the most recent one
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* the user interacted with.
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* This function makes raising GEdit with the file chooser
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* open work correctly.
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*/
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static MetaWindow *
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find_most_recent_transient_on_same_workspace (MetaDisplay *display,
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MetaWindow *reference)
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{
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GSList *transients, *transients_sorted, *iter;
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MetaWindow *result;
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CollectTransientsData data;
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transients = NULL;
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data.workspace = meta_window_get_workspace (reference);
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data.transients = &transients;
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meta_window_foreach_transient (reference, collect_transients_on_workspace, &data);
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transients_sorted = meta_display_sort_windows_by_stacking (display, transients);
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/* Reverse this so we're top-to-bottom (yes, we should probably change the order
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* returned from the sort_windows_by_stacking function)
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*/
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transients_sorted = g_slist_reverse (transients_sorted);
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g_slist_free (transients);
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transients = NULL;
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result = NULL;
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for (iter = transients_sorted; iter; iter = iter->next)
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{
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MetaWindow *window = iter->data;
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MetaWindowType wintype = meta_window_get_window_type (window);
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/* Don't want to focus UTILITY types, like the Gimp toolbars */
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if (wintype == META_WINDOW_NORMAL ||
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wintype == META_WINDOW_DIALOG)
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{
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result = window;
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break;
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}
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}
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g_slist_free (transients_sorted);
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return result;
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}
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/**
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* shell_app_activate_window:
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* @app: a #ShellApp
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* @window: (allow-none): Window to be focused
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* @timestamp: Event timestamp
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*
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* Bring all windows for the given app to the foreground,
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* but ensure that @window is on top. If @window is %NULL,
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* the window with the most recent user time for the app
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* will be used.
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*
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* This function has no effect if @app is not currently running.
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*/
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void
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shell_app_activate_window (ShellApp *app,
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MetaWindow *window,
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guint32 timestamp)
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{
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GSList *windows;
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if (shell_app_get_state (app) != SHELL_APP_STATE_RUNNING)
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return;
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windows = shell_app_get_windows (app);
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if (window == NULL && windows)
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window = windows->data;
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if (!g_slist_find (windows, window))
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return;
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else
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{
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GSList *iter;
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ShellGlobal *global = shell_global_get ();
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MetaScreen *screen = shell_global_get_screen (global);
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MetaDisplay *display = meta_screen_get_display (screen);
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MetaWorkspace *active = meta_screen_get_active_workspace (screen);
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MetaWorkspace *workspace = meta_window_get_workspace (window);
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guint32 last_user_timestamp = meta_display_get_last_user_time (display);
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MetaWindow *most_recent_transient;
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if (meta_display_xserver_time_is_before (display, timestamp, last_user_timestamp))
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{
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meta_window_set_demands_attention (window);
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return;
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}
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/* Now raise all the other windows for the app that are on
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* the same workspace, in reverse order to preserve the stacking.
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*/
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for (iter = windows; iter; iter = iter->next)
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{
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MetaWindow *other_window = iter->data;
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if (other_window != window)
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meta_window_raise (other_window);
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}
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/* If we have a transient that the user's interacted with more recently than
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* the window, pick that.
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*/
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most_recent_transient = find_most_recent_transient_on_same_workspace (display, window);
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if (most_recent_transient
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&& meta_display_xserver_time_is_before (display,
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meta_window_get_user_time (window),
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meta_window_get_user_time (most_recent_transient)))
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window = most_recent_transient;
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if (active != workspace)
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meta_workspace_activate_with_focus (workspace, window, timestamp);
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else
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meta_window_activate (window, timestamp);
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}
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}
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/**
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* shell_app_activate:
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* @app: a #ShellApp
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*
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* Perform an appropriate default action for operating on this application,
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* dependent on its current state. For example, if the application is not
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* currently running, launch it. If it is running, activate the most
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* recently used NORMAL window (or if that window has a transient, the most
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* recently used transient for that window).
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*/
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void
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shell_app_activate (ShellApp *app)
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{
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switch (app->state)
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{
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case SHELL_APP_STATE_STOPPED:
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/* TODO sensibly handle this error */
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shell_app_info_launch (app->info, NULL);
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break;
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case SHELL_APP_STATE_STARTING:
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break;
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case SHELL_APP_STATE_RUNNING:
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shell_app_activate_window (app, NULL, shell_global_get_current_time (shell_global_get ()));
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break;
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}
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}
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/**
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* shell_app_open_new_window:
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* @app: a #ShellApp
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*
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* Request that the application create a new window.
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*/
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void
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shell_app_open_new_window (ShellApp *app)
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{
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/* Here we just always launch the application again, even if we know
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* it was already running. For most applications this
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* should have the effect of creating a new window, whether that's
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* a second process (in the case of Calculator) or IPC to existing
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* instance (Firefox). There are a few less-sensical cases such
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* as say Pidgin. Ideally, we have the application express to us
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* that it supports an explicit new-window action.
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*/
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shell_app_info_launch (app->info, NULL);
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}
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/**
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* shell_app_get_state:
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* @app: a #ShellApp
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*
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* Returns: State of the application
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*/
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ShellAppState
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shell_app_get_state (ShellApp *app)
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{
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return app->state;
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}
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/**
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* _shell_app_get_info:
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*
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* Returns: (transfer none): Associated app info
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*/
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ShellAppInfo *
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_shell_app_get_info (ShellApp *app)
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{
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return app->info;
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}
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typedef struct {
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ShellApp *app;
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MetaWorkspace *active_workspace;
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} CompareWindowsData;
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static int
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shell_app_compare_windows (gconstpointer a,
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gconstpointer b,
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gpointer datap)
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{
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MetaWindow *win_a = (gpointer)a;
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MetaWindow *win_b = (gpointer)b;
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CompareWindowsData *data = datap;
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gboolean ws_a, ws_b;
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gboolean vis_a, vis_b;
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ws_a = meta_window_get_workspace (win_a) == data->active_workspace;
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ws_b = meta_window_get_workspace (win_b) == data->active_workspace;
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if (ws_a && !ws_b)
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return -1;
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else if (!ws_a && ws_b)
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return 1;
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vis_a = meta_window_showing_on_its_workspace (win_a);
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vis_b = meta_window_showing_on_its_workspace (win_b);
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if (vis_a && !vis_b)
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return -1;
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else if (!vis_a && vis_b)
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return 1;
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return meta_window_get_user_time (win_b) - meta_window_get_user_time (win_a);
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}
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/**
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* shell_app_get_windows:
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* @app:
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*
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* Get the toplevel, interesting windows which are associated with this
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* application. The returned list will be sorted first by whether
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* they're on the active workspace, then by whether they're visible,
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* and finally by the time the user last interacted with them.
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*
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* Returns: (transfer none) (element-type MetaWindow): List of windows
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*/
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GSList *
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shell_app_get_windows (ShellApp *app)
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{
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if (app->running_state == NULL)
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return NULL;
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if (app->running_state->window_sort_stale)
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{
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CompareWindowsData data;
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data.app = app;
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data.active_workspace = meta_screen_get_active_workspace (shell_global_get_screen (shell_global_get ()));
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app->running_state->windows = g_slist_sort_with_data (app->running_state->windows, shell_app_compare_windows, &data);
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app->running_state->window_sort_stale = FALSE;
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}
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return app->running_state->windows;
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}
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|
|
guint
|
|
shell_app_get_n_windows (ShellApp *app)
|
|
{
|
|
if (app->running_state == NULL)
|
|
return 0;
|
|
return g_slist_length (app->running_state->windows);
|
|
}
|
|
|
|
static gboolean
|
|
shell_app_has_visible_windows (ShellApp *app)
|
|
{
|
|
GSList *iter;
|
|
|
|
if (app->running_state == NULL)
|
|
return FALSE;
|
|
|
|
for (iter = app->running_state->windows; iter; iter = iter->next)
|
|
{
|
|
MetaWindow *window = iter->data;
|
|
|
|
if (meta_window_showing_on_its_workspace (window))
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
gboolean
|
|
shell_app_is_on_workspace (ShellApp *app,
|
|
MetaWorkspace *workspace)
|
|
{
|
|
GSList *iter;
|
|
|
|
if (shell_app_get_state (app) == SHELL_APP_STATE_STARTING)
|
|
{
|
|
if (meta_workspace_index (workspace) == app->started_on_workspace)
|
|
return TRUE;
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
if (app->running_state == NULL)
|
|
return FALSE;
|
|
|
|
for (iter = app->running_state->windows; iter; iter = iter->next)
|
|
{
|
|
if (meta_window_get_workspace (iter->data) == workspace)
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* shell_app_compare:
|
|
* @app:
|
|
* @other: A #ShellApp
|
|
*
|
|
* Compare one #ShellApp instance to another, in the following way:
|
|
* - Running applications sort before not-running applications.
|
|
* - If one of them has visible windows and the other does not, the one
|
|
* with visible windows is first.
|
|
* - Finally, the application which the user interacted with most recently
|
|
* compares earlier.
|
|
*/
|
|
int
|
|
shell_app_compare (ShellApp *app,
|
|
ShellApp *other)
|
|
{
|
|
gboolean vis_app, vis_other;
|
|
|
|
if (app->state != other->state)
|
|
{
|
|
if (app->state == SHELL_APP_STATE_RUNNING)
|
|
return -1;
|
|
return 1;
|
|
}
|
|
|
|
vis_app = shell_app_has_visible_windows (app);
|
|
vis_other = shell_app_has_visible_windows (other);
|
|
|
|
if (vis_app && !vis_other)
|
|
return -1;
|
|
else if (!vis_app && vis_other)
|
|
return 1;
|
|
|
|
if (app->state == SHELL_APP_STATE_RUNNING)
|
|
{
|
|
if (app->running_state->windows && !other->running_state->windows)
|
|
return -1;
|
|
else if (!app->running_state->windows && other->running_state->windows)
|
|
return 1;
|
|
return other->running_state->last_user_time - app->running_state->last_user_time;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
ShellApp *
|
|
_shell_app_new_for_window (MetaWindow *window)
|
|
{
|
|
ShellApp *app;
|
|
|
|
app = g_object_new (SHELL_TYPE_APP, NULL);
|
|
app->info = shell_app_system_create_from_window (shell_app_system_get_default (), window);
|
|
_shell_app_system_register_app (shell_app_system_get_default (), app);
|
|
_shell_app_add_window (app, window);
|
|
|
|
return app;
|
|
}
|
|
|
|
ShellApp *
|
|
_shell_app_new (ShellAppInfo *info)
|
|
{
|
|
ShellApp *app;
|
|
|
|
app = g_object_new (SHELL_TYPE_APP, NULL);
|
|
app->info = shell_app_info_ref (info);
|
|
_shell_app_system_register_app (shell_app_system_get_default (), app);
|
|
|
|
return app;
|
|
}
|
|
|
|
static void
|
|
shell_app_state_transition (ShellApp *app,
|
|
ShellAppState state)
|
|
{
|
|
if (app->state == state)
|
|
return;
|
|
g_return_if_fail (!(app->state == SHELL_APP_STATE_RUNNING &&
|
|
state == SHELL_APP_STATE_STARTING));
|
|
app->state = state;
|
|
|
|
if (app->state == SHELL_APP_STATE_STOPPED && app->running_state)
|
|
{
|
|
unref_running_state (app->running_state);
|
|
app->running_state = NULL;
|
|
}
|
|
|
|
_shell_window_tracker_notify_app_state_changed (shell_window_tracker_get_default (), app);
|
|
|
|
g_object_notify (G_OBJECT (app), "state");
|
|
}
|
|
|
|
static void
|
|
shell_app_on_unmanaged (MetaWindow *window,
|
|
ShellApp *app)
|
|
{
|
|
_shell_app_remove_window (app, window);
|
|
}
|
|
|
|
static void
|
|
shell_app_on_user_time_changed (MetaWindow *window,
|
|
GParamSpec *pspec,
|
|
ShellApp *app)
|
|
{
|
|
g_assert (app->running_state != NULL);
|
|
|
|
app->running_state->last_user_time = meta_window_get_user_time (window);
|
|
|
|
/* Ideally we don't want to emit windows-changed if the sort order
|
|
* isn't actually changing. This check catches most of those.
|
|
*/
|
|
if (window != app->running_state->windows->data)
|
|
{
|
|
app->running_state->window_sort_stale = TRUE;
|
|
g_signal_emit (app, shell_app_signals[WINDOWS_CHANGED], 0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
shell_app_on_ws_switch (MetaScreen *screen,
|
|
int from,
|
|
int to,
|
|
MetaMotionDirection direction,
|
|
gpointer data)
|
|
{
|
|
ShellApp *app = SHELL_APP (data);
|
|
|
|
g_assert (app->running_state != NULL);
|
|
|
|
app->running_state->window_sort_stale = TRUE;
|
|
|
|
g_signal_emit (app, shell_app_signals[WINDOWS_CHANGED], 0);
|
|
}
|
|
|
|
void
|
|
_shell_app_add_window (ShellApp *app,
|
|
MetaWindow *window)
|
|
{
|
|
guint32 user_time;
|
|
|
|
if (app->running_state && g_slist_find (app->running_state->windows, window))
|
|
return;
|
|
|
|
g_object_freeze_notify (G_OBJECT (app));
|
|
|
|
if (app->state != SHELL_APP_STATE_STARTING)
|
|
shell_app_state_transition (app, SHELL_APP_STATE_RUNNING);
|
|
|
|
if (!app->running_state)
|
|
create_running_state (app);
|
|
|
|
app->running_state->window_sort_stale = TRUE;
|
|
app->running_state->windows = g_slist_prepend (app->running_state->windows, g_object_ref (window));
|
|
g_signal_connect (window, "unmanaged", G_CALLBACK(shell_app_on_unmanaged), app);
|
|
g_signal_connect (window, "notify::user-time", G_CALLBACK(shell_app_on_user_time_changed), app);
|
|
|
|
user_time = meta_window_get_user_time (window);
|
|
if (user_time > app->running_state->last_user_time)
|
|
app->running_state->last_user_time = user_time;
|
|
|
|
g_object_thaw_notify (G_OBJECT (app));
|
|
|
|
g_signal_emit (app, shell_app_signals[WINDOWS_CHANGED], 0);
|
|
}
|
|
|
|
void
|
|
_shell_app_remove_window (ShellApp *app,
|
|
MetaWindow *window)
|
|
{
|
|
g_assert (app->running_state != NULL);
|
|
|
|
if (!g_slist_find (app->running_state->windows, window))
|
|
return;
|
|
|
|
g_signal_handlers_disconnect_by_func (window, G_CALLBACK(shell_app_on_unmanaged), app);
|
|
g_signal_handlers_disconnect_by_func (window, G_CALLBACK(shell_app_on_user_time_changed), app);
|
|
g_object_unref (window);
|
|
app->running_state->windows = g_slist_remove (app->running_state->windows, window);
|
|
|
|
if (app->running_state->windows == NULL)
|
|
shell_app_state_transition (app, SHELL_APP_STATE_STOPPED);
|
|
|
|
g_signal_emit (app, shell_app_signals[WINDOWS_CHANGED], 0);
|
|
}
|
|
|
|
/**
|
|
* shell_app_get_pids:
|
|
* @app: a #ShellApp
|
|
*
|
|
* Returns: (transfer container) (element-type int): An unordered list of process identifers associated with this application.
|
|
*/
|
|
GSList *
|
|
shell_app_get_pids (ShellApp *app)
|
|
{
|
|
GSList *result;
|
|
GSList *iter;
|
|
|
|
result = NULL;
|
|
for (iter = shell_app_get_windows (app); iter; iter = iter->next)
|
|
{
|
|
MetaWindow *window = iter->data;
|
|
int pid = meta_window_get_pid (window);
|
|
/* Note in the (by far) common case, app will only have one pid, so
|
|
* we'll hit the first element, so don't worry about O(N^2) here.
|
|
*/
|
|
if (!g_slist_find (result, GINT_TO_POINTER (pid)))
|
|
result = g_slist_prepend (result, GINT_TO_POINTER (pid));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void
|
|
_shell_app_handle_startup_sequence (ShellApp *app,
|
|
SnStartupSequence *sequence)
|
|
{
|
|
gboolean starting = !sn_startup_sequence_get_completed (sequence);
|
|
|
|
/* The Shell design calls for on application launch, the app title
|
|
* appears at top, and no X window is focused. So when we get
|
|
* a startup-notification for this app, transition it to STARTING
|
|
* if it's currently stopped, set it as our application focus,
|
|
* but focus the no_focus window.
|
|
*/
|
|
if (starting && shell_app_get_state (app) == SHELL_APP_STATE_STOPPED)
|
|
{
|
|
MetaScreen *screen = shell_global_get_screen (shell_global_get ());
|
|
MetaDisplay *display = meta_screen_get_display (screen);
|
|
|
|
shell_app_state_transition (app, SHELL_APP_STATE_STARTING);
|
|
meta_display_focus_the_no_focus_window (display, screen,
|
|
sn_startup_sequence_get_timestamp (sequence));
|
|
app->started_on_workspace = sn_startup_sequence_get_workspace (sequence);
|
|
}
|
|
|
|
if (!starting)
|
|
{
|
|
if (app->running_state && app->running_state->windows)
|
|
shell_app_state_transition (app, SHELL_APP_STATE_RUNNING);
|
|
else /* application have > 1 .desktop file */
|
|
shell_app_state_transition (app, SHELL_APP_STATE_STOPPED);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* shell_app_request_quit:
|
|
* @app: A #ShellApp
|
|
*
|
|
* Initiate an asynchronous request to quit this application.
|
|
* The application may interact with the user, and the user
|
|
* might cancel the quit request from the application UI.
|
|
*
|
|
* This operation may not be supported for all applications.
|
|
*
|
|
* Returns: %TRUE if a quit request is supported for this application
|
|
*/
|
|
gboolean
|
|
shell_app_request_quit (ShellApp *app)
|
|
{
|
|
GSList *iter;
|
|
|
|
if (shell_app_get_state (app) != SHELL_APP_STATE_RUNNING)
|
|
return FALSE;
|
|
|
|
/* TODO - check for an XSMP connection; we could probably use that */
|
|
|
|
for (iter = app->running_state->windows; iter; iter = iter->next)
|
|
{
|
|
MetaWindow *win = iter->data;
|
|
|
|
if (!shell_window_tracker_is_window_interesting (win))
|
|
continue;
|
|
|
|
meta_window_delete (win, shell_global_get_current_time (shell_global_get ()));
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
create_running_state (ShellApp *app)
|
|
{
|
|
MetaScreen *screen;
|
|
|
|
g_assert (app->running_state == NULL);
|
|
|
|
screen = shell_global_get_screen (shell_global_get ());
|
|
app->running_state = g_slice_new0 (ShellAppRunningState);
|
|
app->running_state->refcount = 1;
|
|
app->running_state->workspace_switch_id =
|
|
g_signal_connect (screen, "workspace-switched", G_CALLBACK(shell_app_on_ws_switch), app);
|
|
}
|
|
|
|
static void
|
|
unref_running_state (ShellAppRunningState *state)
|
|
{
|
|
MetaScreen *screen;
|
|
|
|
state->refcount--;
|
|
if (state->refcount > 0)
|
|
return;
|
|
|
|
screen = shell_global_get_screen (shell_global_get ());
|
|
|
|
g_signal_handler_disconnect (screen, state->workspace_switch_id);
|
|
g_slice_free (ShellAppRunningState, state);
|
|
}
|
|
|
|
static void
|
|
shell_app_init (ShellApp *self)
|
|
{
|
|
self->state = SHELL_APP_STATE_STOPPED;
|
|
}
|
|
|
|
static void
|
|
shell_app_dispose (GObject *object)
|
|
{
|
|
ShellApp *app = SHELL_APP (object);
|
|
|
|
if (app->info)
|
|
{
|
|
shell_app_info_unref (app->info);
|
|
app->info = NULL;
|
|
}
|
|
|
|
if (app->running_state)
|
|
{
|
|
while (app->running_state->windows)
|
|
_shell_app_remove_window (app, app->running_state->windows->data);
|
|
}
|
|
|
|
G_OBJECT_CLASS(shell_app_parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
shell_app_class_init(ShellAppClass *klass)
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
|
|
|
gobject_class->get_property = shell_app_get_property;
|
|
gobject_class->dispose = shell_app_dispose;
|
|
|
|
shell_app_signals[WINDOWS_CHANGED] = g_signal_new ("windows-changed",
|
|
SHELL_TYPE_APP,
|
|
G_SIGNAL_RUN_LAST,
|
|
0,
|
|
NULL, NULL,
|
|
g_cclosure_marshal_VOID__VOID,
|
|
G_TYPE_NONE, 0);
|
|
|
|
/**
|
|
* ShellApp:state:
|
|
*
|
|
* The high-level state of the application, effectively whether it's
|
|
* running or not, or transitioning between those states.
|
|
*/
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_STATE,
|
|
g_param_spec_enum ("state",
|
|
"State",
|
|
"Application state",
|
|
SHELL_TYPE_APP_STATE,
|
|
SHELL_APP_STATE_STOPPED,
|
|
G_PARAM_READABLE));
|
|
}
|