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gnome-shell/src/shell-app-system.c
Milan Bouchet-Valat 2799327c84 Migrate to GSettings 
Use GSettings for all Shell configuration. GConf is kept to read
configuration from external programs (Metacity, Nautilus and Magnifier),
but ShellGConf is removed because it's mostly useless for the few calls
we still have. Also get rid of unused GConf code in ShellAppSystem.

A basic GConf schema is still used to override Metacity defaults and
configure Magnifier in a system-wide fashion. GConf is also used as
GSettings backend via the GSETTINGS_BACKEND environment variable.
All of this will be removed when these programs have been ported
to GSettings and able to use dconf.

GLib 2.25.9 is required. Schemas are converted to the new XML format,
and compiled at build time in data/ so that the Shell can be run from
the source tree. This also requires setting the GSETTINGS_SCHEMA_DIR
environment variable both when running installed or from source tree,
in src/gnome-shell.in and src/gnome-shell-clock-preferences.in.

https://bugzilla.gnome.org/show_bug.cgi?id=617917
2010-06-18 20:27:41 +02:00

1345 lines
36 KiB
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
#include "config.h"
#include "shell-app-system.h"
#include <string.h>
#include <gio/gio.h>
#include <gio/gdesktopappinfo.h>
#include <gtk/gtk.h>
#include <clutter/clutter.h>
#include "shell-app-private.h"
#include "shell-global.h"
#include "st/st-texture-cache.h"
#include "display.h"
#define GMENU_I_KNOW_THIS_IS_UNSTABLE
#include <gmenu-tree.h>
/* Vendor prefixes are something that can be preprended to a .desktop
* file name. Undo this.
*/
static const char*const known_vendor_prefixes[] = { "gnome",
"fedora",
"mozilla",
NULL };
enum {
PROP_0,
};
enum {
INSTALLED_CHANGED,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
struct _ShellAppSystemPrivate {
GMenuTree *apps_tree;
GMenuTree *settings_tree;
GHashTable *app_id_to_info;
GHashTable *app_id_to_app;
GSList *cached_flattened_apps; /* ShellAppInfo */
GSList *cached_settings; /* ShellAppInfo */
gint app_monitor_id;
guint app_change_timeout_id;
};
static void shell_app_system_finalize (GObject *object);
static gboolean on_tree_changed (gpointer user_data);
static void on_tree_changed_cb (GMenuTree *tree, gpointer user_data);
static void reread_menus (ShellAppSystem *self);
G_DEFINE_TYPE(ShellAppSystem, shell_app_system, G_TYPE_OBJECT);
typedef enum {
SHELL_APP_INFO_TYPE_ENTRY,
SHELL_APP_INFO_TYPE_DESKTOP_FILE,
SHELL_APP_INFO_TYPE_WINDOW
} ShellAppInfoType;
struct _ShellAppInfo {
ShellAppInfoType type;
/* We need this for two reasons. First, GKeyFile doesn't have a refcount.
* http://bugzilla.gnome.org/show_bug.cgi?id=590808
*
* But more generally we'll always need it so we know when to free this
* structure (short of weak references on each item).
*/
guint refcount;
char *casefolded_name;
char *name_collation_key;
char *casefolded_description;
char *casefolded_exec;
GMenuTreeItem *entry;
GKeyFile *keyfile;
char *keyfile_path;
MetaWindow *window;
char *window_id;
};
ShellAppInfo*
shell_app_info_ref (ShellAppInfo *info)
{
info->refcount++;
return info;
}
void
shell_app_info_unref (ShellAppInfo *info)
{
if (--info->refcount > 0)
return;
g_free (info->casefolded_name);
g_free (info->name_collation_key);
g_free (info->casefolded_description);
switch (info->type)
{
case SHELL_APP_INFO_TYPE_ENTRY:
gmenu_tree_item_unref (info->entry);
break;
case SHELL_APP_INFO_TYPE_DESKTOP_FILE:
g_key_file_free (info->keyfile);
g_free (info->keyfile_path);
break;
case SHELL_APP_INFO_TYPE_WINDOW:
g_object_unref (info->window);
g_free (info->window_id);
break;
}
g_slice_free (ShellAppInfo, info);
}
static ShellAppInfo *
shell_app_info_new_from_tree_item (GMenuTreeItem *item)
{
ShellAppInfo *info;
if (!item)
return NULL;
info = g_slice_alloc0 (sizeof (ShellAppInfo));
info->type = SHELL_APP_INFO_TYPE_ENTRY;
info->refcount = 1;
info->entry = gmenu_tree_item_ref (item);
return info;
}
static ShellAppInfo *
shell_app_info_new_from_window (MetaWindow *window)
{
ShellAppInfo *info;
info = g_slice_alloc0 (sizeof (ShellAppInfo));
info->type = SHELL_APP_INFO_TYPE_WINDOW;
info->refcount = 1;
info->window = g_object_ref (window);
/* For windows, its id is simply its pointer address as a string.
* There are various other alternatives, but the address is unique
* and unchanging, which is pretty much the best we can do.
*/
info->window_id = g_strdup_printf ("window:%p", window);
return info;
}
static ShellAppInfo *
shell_app_info_new_from_keyfile_take_ownership (GKeyFile *keyfile,
const char *path)
{
ShellAppInfo *info;
info = g_slice_alloc0 (sizeof (ShellAppInfo));
info->type = SHELL_APP_INFO_TYPE_DESKTOP_FILE;
info->refcount = 1;
info->keyfile = keyfile;
info->keyfile_path = g_strdup (path);
return info;
}
static void shell_app_system_class_init(ShellAppSystemClass *klass)
{
GObjectClass *gobject_class = (GObjectClass *)klass;
gobject_class->finalize = shell_app_system_finalize;
signals[INSTALLED_CHANGED] =
g_signal_new ("installed-changed",
SHELL_TYPE_APP_SYSTEM,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ShellAppSystemClass, installed_changed),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
g_type_class_add_private (gobject_class, sizeof (ShellAppSystemPrivate));
}
static void
shell_app_system_init (ShellAppSystem *self)
{
ShellAppSystemPrivate *priv;
self->priv = priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
SHELL_TYPE_APP_SYSTEM,
ShellAppSystemPrivate);
/* The key is owned by the value */
priv->app_id_to_info = g_hash_table_new_full (g_str_hash, g_str_equal,
NULL, (GDestroyNotify) shell_app_info_unref);
/* Key is owned by info */
priv->app_id_to_app = g_hash_table_new (g_str_hash, g_str_equal);
/* For now, we want to pick up Evince, Nautilus, etc. We'll
* handle NODISPLAY semantics at a higher level or investigate them
* case by case.
*/
priv->apps_tree = gmenu_tree_lookup ("applications.menu", GMENU_TREE_FLAGS_INCLUDE_NODISPLAY);
priv->settings_tree = gmenu_tree_lookup ("settings.menu", GMENU_TREE_FLAGS_NONE);
priv->app_change_timeout_id = 0;
gmenu_tree_add_monitor (priv->apps_tree, on_tree_changed_cb, self);
gmenu_tree_add_monitor (priv->settings_tree, on_tree_changed_cb, self);
reread_menus (self);
}
static void
shell_app_system_finalize (GObject *object)
{
ShellAppSystem *self = SHELL_APP_SYSTEM (object);
ShellAppSystemPrivate *priv = self->priv;
gmenu_tree_remove_monitor (priv->apps_tree, on_tree_changed_cb, self);
gmenu_tree_remove_monitor (priv->settings_tree, on_tree_changed_cb, self);
gmenu_tree_unref (priv->apps_tree);
gmenu_tree_unref (priv->settings_tree);
g_hash_table_destroy (priv->app_id_to_info);
g_hash_table_destroy (priv->app_id_to_app);
g_slist_foreach (priv->cached_flattened_apps, (GFunc)shell_app_info_unref, NULL);
g_slist_free (priv->cached_flattened_apps);
priv->cached_flattened_apps = NULL;
g_slist_foreach (priv->cached_settings, (GFunc)shell_app_info_unref, NULL);
g_slist_free (priv->cached_settings);
priv->cached_settings = NULL;
G_OBJECT_CLASS (shell_app_system_parent_class)->finalize(object);
}
static GSList *
gather_entries_recurse (ShellAppSystem *monitor,
GSList *apps,
GHashTable *unique,
GMenuTreeDirectory *root)
{
GSList *contents;
GSList *iter;
contents = gmenu_tree_directory_get_contents (root);
for (iter = contents; iter; iter = iter->next)
{
GMenuTreeItem *item = iter->data;
switch (gmenu_tree_item_get_type (item))
{
case GMENU_TREE_ITEM_ENTRY:
{
ShellAppInfo *app = shell_app_info_new_from_tree_item (item);
if (!g_hash_table_lookup (unique, shell_app_info_get_id (app)))
{
apps = g_slist_prepend (apps, app);
g_hash_table_insert (unique, (char*)shell_app_info_get_id (app), app);
}
}
break;
case GMENU_TREE_ITEM_DIRECTORY:
{
GMenuTreeDirectory *dir = (GMenuTreeDirectory*)item;
apps = gather_entries_recurse (monitor, apps, unique, dir);
}
break;
default:
break;
}
gmenu_tree_item_unref (item);
}
g_slist_free (contents);
return apps;
}
static void
reread_entries (ShellAppSystem *self,
GSList **cache,
GHashTable *unique,
GMenuTree *tree)
{
GMenuTreeDirectory *trunk;
trunk = gmenu_tree_get_root_directory (tree);
g_slist_foreach (*cache, (GFunc)shell_app_info_unref, NULL);
g_slist_free (*cache);
*cache = NULL;
if (!trunk)
{
*cache = NULL;
}
else
{
*cache = gather_entries_recurse (self, *cache, unique, trunk);
gmenu_tree_item_unref (trunk);
}
}
static void
cache_by_id (ShellAppSystem *self, GSList *apps)
{
GSList *iter;
for (iter = apps; iter; iter = iter->next)
{
ShellAppInfo *info = iter->data;
shell_app_info_ref (info);
/* the name is owned by the info itself */
g_hash_table_replace (self->priv->app_id_to_info, (char*)shell_app_info_get_id (info),
info);
}
}
static void
reread_menus (ShellAppSystem *self)
{
GHashTable *unique = g_hash_table_new (g_str_hash, g_str_equal);
reread_entries (self, &(self->priv->cached_flattened_apps), unique, self->priv->apps_tree);
g_hash_table_remove_all (unique);
reread_entries (self, &(self->priv->cached_settings), unique, self->priv->settings_tree);
g_hash_table_destroy (unique);
g_hash_table_remove_all (self->priv->app_id_to_info);
cache_by_id (self, self->priv->cached_flattened_apps);
cache_by_id (self, self->priv->cached_settings);
}
static gboolean
on_tree_changed (gpointer user_data)
{
ShellAppSystem *self = SHELL_APP_SYSTEM (user_data);
reread_menus (self);
g_signal_emit (self, signals[INSTALLED_CHANGED], 0);
self->priv->app_change_timeout_id = 0;
return FALSE;
}
static void
on_tree_changed_cb (GMenuTree *monitor, gpointer user_data)
{
ShellAppSystem *self = SHELL_APP_SYSTEM (user_data);
/* GMenu currently gives us a separate notification on the entire
* menu tree for each node in the tree that might potentially have
* changed. (See http://bugzilla.gnome.org/show_bug.cgi?id=172046.)
* We need to compress these to avoid doing large extra amounts of
* work.
*
* Even when that bug is fixed, compression is still useful; for one
* thing we want to need to compress across notifications of changes
* to the settings tree. Second we want to compress if multiple
* changes are made to the desktop files at different times but in
* short succession.
*/
if (self->priv->app_change_timeout_id != 0)
return;
self->priv->app_change_timeout_id = g_timeout_add_full (G_PRIORITY_DEFAULT_IDLE, 3000,
(GSourceFunc) on_tree_changed,
self, NULL);
}
GType
shell_app_info_get_type (void)
{
static GType gtype = G_TYPE_INVALID;
if (gtype == G_TYPE_INVALID)
{
gtype = g_boxed_type_register_static ("ShellAppInfo",
(GBoxedCopyFunc)shell_app_info_ref,
(GBoxedFreeFunc)shell_app_info_unref);
}
return gtype;
}
/**
* shell_app_system_get_flattened_apps:
*
* Traverses a toplevel menu, and returns all items under it. Nested items
* are flattened. This value is computed on initial call and cached thereafter
* until the set of installed applications changes.
*
* Return value: (transfer none) (element-type ShellAppInfo): List of applications
*/
GSList *
shell_app_system_get_flattened_apps (ShellAppSystem *self)
{
return self->priv->cached_flattened_apps;
}
/**
* shell_app_system_get_all_settings:
*
* Returns a list of application items under "settings.menu".
*
* Return value: (transfer none) (element-type ShellAppInfo): List of applications
*/
GSList *
shell_app_system_get_all_settings (ShellAppSystem *monitor)
{
return monitor->priv->cached_settings;
}
/**
* shell_app_system_get_default:
*
* Return Value: (transfer none): The global #ShellAppSystem singleton
*/
ShellAppSystem *
shell_app_system_get_default ()
{
static ShellAppSystem *instance = NULL;
if (instance == NULL)
instance = g_object_new (SHELL_TYPE_APP_SYSTEM, NULL);
return instance;
}
typedef struct {
ShellAppSystem *appsys;
ShellAppInfo *info;
} ShellAppRef;
static void
shell_app_system_on_app_weakref (gpointer data,
GObject *location)
{
ShellAppRef *ref = data;
g_hash_table_remove (ref->appsys->priv->app_id_to_app, shell_app_info_get_id (ref->info));
shell_app_info_unref (ref->info);
g_free (ref);
}
/**
* shell_app_system_get_app:
*
* Find or create a #ShellApp corresponding to an id; if already cached
* elsewhere in memory, return that instance. Otherwise, create a new
* one.
*
* Return value: (transfer full): The #ShellApp for id, or %NULL if none
*/
ShellApp *
shell_app_system_get_app (ShellAppSystem *self,
const char *id)
{
ShellAppInfo *info;
ShellApp *app;
app = g_hash_table_lookup (self->priv->app_id_to_app, id);
if (app)
return g_object_ref (app);
info = g_hash_table_lookup (self->priv->app_id_to_info, id);
if (!info)
return NULL;
app = _shell_app_new (info);
return app;
}
/**
* shell_app_system_get_app_for_path:
* @system: a #ShellAppSystem
* @desktop_path: (utf8): UTF-8 encoded absolute file name
*
* Find or create a #ShellApp corresponding to a given absolute
* file name which must be in the standard paths (XDG_DATA_DIRS).
* For files outside the datadirs, this function returns %NULL.
*
* If already cached elsewhere in memory, return that instance.
* Otherwise, create a new one.
*
* Return value: (transfer full): The #ShellApp for id, or %NULL if none
*/
ShellApp *
shell_app_system_get_app_for_path (ShellAppSystem *system,
const char *desktop_path)
{
const char *basename;
ShellAppInfo *info;
basename = g_strrstr (desktop_path, "/");
if (basename)
basename += 1;
else
basename = desktop_path;
info = g_hash_table_lookup (system->priv->app_id_to_info, basename);
if (!info)
return NULL;
if (info->type == SHELL_APP_INFO_TYPE_ENTRY)
{
const char *full_path = gmenu_tree_entry_get_desktop_file_path ((GMenuTreeEntry*) info->entry);
if (strcmp (desktop_path, full_path) != 0)
return NULL;
}
else
return NULL;
return shell_app_system_get_app (system, basename);
}
/**
* shell_app_system_get_app_for_window:
* @self: A #ShellAppSystem
* @window: A #MetaWindow
*
* Find or create a #ShellApp for window
*
* Return value: (transfer full): The #ShellApp for window, or %NULL if none
*/
ShellApp *
shell_app_system_get_app_for_window (ShellAppSystem *self,
MetaWindow *window)
{
char *id = g_strdup_printf ("window:%p", window);
ShellApp *app = g_hash_table_lookup (self->priv->app_id_to_app, id);
if (app)
g_object_ref (G_OBJECT (app));
else
app = _shell_app_new_for_window (window);
g_free (id);
return app;
}
/* ShellAppSystem ensures we have a unique instance of
* apps per id.
*/
void
_shell_app_system_register_app (ShellAppSystem *self,
ShellApp *app)
{
const char *id;
ShellAppRef *ref;
id = shell_app_get_id (app);
g_return_if_fail (g_hash_table_lookup (self->priv->app_id_to_app, id) == NULL);
ref = g_new0 (ShellAppRef, 1);
ref->appsys = self;
ref->info = shell_app_info_ref (_shell_app_get_info (app));
g_hash_table_insert (self->priv->app_id_to_app, (char*)shell_app_info_get_id (ref->info), app);
g_object_weak_ref (G_OBJECT (app), shell_app_system_on_app_weakref, ref);
}
ShellAppInfo *
shell_app_system_load_from_desktop_file (ShellAppSystem *system,
const char *filename,
GError **error)
{
ShellAppInfo *appinfo;
GKeyFile *keyfile;
char *full_path = NULL;
gboolean success;
keyfile = g_key_file_new ();
if (strchr (filename, '/') != NULL)
{
success = g_key_file_load_from_file (keyfile, filename, G_KEY_FILE_NONE, error);
full_path = g_strdup (filename);
}
else
{
char *app_path = g_build_filename ("applications", filename, NULL);
success = g_key_file_load_from_data_dirs (keyfile, app_path, &full_path,
G_KEY_FILE_NONE, error);
g_free (app_path);
}
if (!success)
{
g_key_file_free (keyfile);
g_free (full_path);
return NULL;
}
appinfo = shell_app_info_new_from_keyfile_take_ownership (keyfile, full_path);
g_free (full_path);
return appinfo;
}
/**
* shell_app_system_create_from_window:
*
* In the case where we can't otherwise determine an application
* associated with a window, this function can create a "fake"
* application just backed by information from the window itself.
*
* Return value: (transfer full): A new #ShellAppInfo
*/
ShellAppInfo *
shell_app_system_create_from_window (ShellAppSystem *system, MetaWindow *window)
{
return shell_app_info_new_from_window (window);
}
/**
* shell_app_system_lookup_heuristic_basename:
* @name: Probable application identifier
*
* Find a valid application corresponding to a given
* heuristically determined application identifier
* string, or %NULL if none.
*
* Returns: (transfer full): A #ShellApp for name
*/
ShellApp *
shell_app_system_lookup_heuristic_basename (ShellAppSystem *system,
const char *name)
{
ShellApp *result;
char **vendor_prefixes;
result = shell_app_system_get_app (system, name);
if (result != NULL)
return result;
for (vendor_prefixes = (char**)known_vendor_prefixes;
*vendor_prefixes; vendor_prefixes++)
{
char *tmpid = g_strjoin (NULL, *vendor_prefixes, "-", name, NULL);
result = shell_app_system_get_app (system, tmpid);
g_free (tmpid);
if (result != NULL)
return result;
}
return NULL;
}
typedef enum {
MATCH_NONE,
MATCH_MULTIPLE, /* Matches multiple terms */
MATCH_PREFIX, /* Strict prefix */
MATCH_SUBSTRING /* Not prefix, substring */
} ShellAppInfoSearchMatch;
static char *
normalize_and_casefold (const char *str)
{
char *normalized, *result;
if (str == NULL)
return NULL;
normalized = g_utf8_normalize (str, -1, G_NORMALIZE_ALL);
result = g_utf8_casefold (normalized, -1);
g_free (normalized);
return result;
}
static char *
trim_exec_line (const char *str)
{
const char *start, *end, *pos;
end = strchr (str, ' ');
if (end == NULL)
end = str + strlen (str);
start = str;
while ((pos = strchr (start, '/')) && pos < end)
start = ++pos;
return g_strndup (start, end - start);
}
static void
shell_app_info_init_search_data (ShellAppInfo *info)
{
const char *name;
const char *exec;
const char *comment;
char *normalized_exec;
g_assert (info->type == SHELL_APP_INFO_TYPE_ENTRY);
name = gmenu_tree_entry_get_name ((GMenuTreeEntry*)info->entry);
info->casefolded_name = normalize_and_casefold (name);
comment = gmenu_tree_entry_get_comment ((GMenuTreeEntry*)info->entry);
info->casefolded_description = normalize_and_casefold (comment);
exec = gmenu_tree_entry_get_exec ((GMenuTreeEntry*)info->entry);
normalized_exec = normalize_and_casefold (exec);
info->casefolded_exec = trim_exec_line (normalized_exec);
g_free (normalized_exec);
}
static ShellAppInfoSearchMatch
shell_app_info_match_terms (ShellAppInfo *info,
GSList *terms)
{
GSList *iter;
ShellAppInfoSearchMatch match;
if (G_UNLIKELY(!info->casefolded_name))
shell_app_info_init_search_data (info);
match = MATCH_NONE;
for (iter = terms; iter; iter = iter->next)
{
const char *term = iter->data;
const char *p;
p = strstr (info->casefolded_name, term);
if (p == info->casefolded_name)
{
if (match != MATCH_NONE)
return MATCH_MULTIPLE;
else
match = MATCH_PREFIX;
}
else if (p != NULL)
match = MATCH_SUBSTRING;
p = strstr (info->casefolded_exec, term);
if (p == info->casefolded_exec)
{
if (match != MATCH_NONE)
return MATCH_MULTIPLE;
else
match = MATCH_PREFIX;
}
else if (p != NULL)
match = MATCH_SUBSTRING;
if (!info->casefolded_description)
continue;
p = strstr (info->casefolded_description, term);
if (p != NULL)
match = MATCH_SUBSTRING;
}
return match;
}
static gint
shell_app_info_compare (gconstpointer a,
gconstpointer b,
gpointer data)
{
ShellAppSystem *system = data;
const char *id_a = a;
const char *id_b = b;
ShellAppInfo *info_a = g_hash_table_lookup (system->priv->app_id_to_info, id_a);
ShellAppInfo *info_b = g_hash_table_lookup (system->priv->app_id_to_info, id_b);
if (!info_a->name_collation_key)
info_a->name_collation_key = g_utf8_collate_key (gmenu_tree_entry_get_name ((GMenuTreeEntry*)info_a->entry), -1);
if (!info_b->name_collation_key)
info_b->name_collation_key = g_utf8_collate_key (gmenu_tree_entry_get_name ((GMenuTreeEntry*)info_b->entry), -1);
return strcmp (info_a->name_collation_key, info_b->name_collation_key);
}
static GSList *
sort_and_concat_results (ShellAppSystem *system,
GSList *multiple_matches,
GSList *prefix_matches,
GSList *substring_matches)
{
multiple_matches = g_slist_sort_with_data (multiple_matches, shell_app_info_compare, system);
prefix_matches = g_slist_sort_with_data (prefix_matches, shell_app_info_compare, system);
substring_matches = g_slist_sort_with_data (substring_matches, shell_app_info_compare, system);
return g_slist_concat (multiple_matches, g_slist_concat (prefix_matches, substring_matches));
}
/**
* normalize_terms:
* @terms: (element-type utf8): Input search terms
*
* Returns: (element-type utf8) (transfer full): Unicode-normalized and lowercased terms
*/
static GSList *
normalize_terms (GSList *terms)
{
GSList *normalized_terms = NULL;
GSList *iter;
for (iter = terms; iter; iter = iter->next)
{
const char *term = iter->data;
normalized_terms = g_slist_prepend (normalized_terms, normalize_and_casefold (term));
}
return normalized_terms;
}
static inline void
shell_app_system_do_match (ShellAppSystem *system,
ShellAppInfo *info,
GSList *terms,
GSList **multiple_results,
GSList **prefix_results,
GSList **substring_results)
{
const char *id = shell_app_info_get_id (info);
ShellAppInfoSearchMatch match;
if (shell_app_info_get_is_nodisplay (info))
return;
match = shell_app_info_match_terms (info, terms);
switch (match)
{
case MATCH_NONE:
break;
case MATCH_MULTIPLE:
*multiple_results = g_slist_prepend (*multiple_results, (char *) id);
break;
case MATCH_PREFIX:
*prefix_results = g_slist_prepend (*prefix_results, (char *) id);
break;
case MATCH_SUBSTRING:
*substring_results = g_slist_prepend (*substring_results, (char *) id);
break;
}
}
static GSList *
shell_app_system_initial_search_internal (ShellAppSystem *self,
GSList *terms,
GSList *source)
{
GSList *multiple_results = NULL;
GSList *prefix_results = NULL;
GSList *substring_results = NULL;
GSList *iter;
GSList *normalized_terms = normalize_terms (terms);
for (iter = source; iter; iter = iter->next)
{
ShellAppInfo *info = iter->data;
shell_app_system_do_match (self, info, normalized_terms, &multiple_results, &prefix_results, &substring_results);
}
g_slist_foreach (normalized_terms, (GFunc)g_free, NULL);
g_slist_free (normalized_terms);
return sort_and_concat_results (self, multiple_results, prefix_results, substring_results);
}
/**
* shell_app_system_initial_search:
* @self: A #ShellAppSystem
* @prefs: %TRUE if we should search preferences instead of apps
* @terms: (element-type utf8): List of terms, logical OR
*
* Search through applications for the given search terms. Note that returned
* strings are only valid until a return to the main loop.
*
* Returns: (transfer container) (element-type utf8): List of application identifiers
*/
GSList *
shell_app_system_initial_search (ShellAppSystem *self,
gboolean prefs,
GSList *terms)
{
return shell_app_system_initial_search_internal (self, terms,
prefs ? self->priv->cached_settings : self->priv->cached_flattened_apps);
}
/**
* shell_app_system_subsearch:
* @self: A #ShellAppSystem
* @prefs: %TRUE if we should search preferences instead of apps
* @previous_results: (element-type utf8): List of previous results
* @terms: (element-type utf8): List of terms, logical OR
*
* Search through a previous result set; for more information, see
* js/ui/search.js. Note the value of @prefs must be
* the same as passed to shell_app_system_initial_search(). Note that returned
* strings are only valid until a return to the main loop.
*
* Returns: (transfer container) (element-type utf8): List of application identifiers
*/
GSList *
shell_app_system_subsearch (ShellAppSystem *system,
gboolean prefs,
GSList *previous_results,
GSList *terms)
{
GSList *iter;
GSList *multiple_results = NULL;
GSList *prefix_results = NULL;
GSList *substring_results = NULL;
GSList *normalized_terms = normalize_terms (terms);
/* Note prefs is deliberately ignored; both apps and prefs are in app_id_to_app,
* but we have the parameter for consistency and in case in the future
* they're not in the same data structure.
*/
for (iter = previous_results; iter; iter = iter->next)
{
const char *id = iter->data;
ShellAppInfo *info;
info = g_hash_table_lookup (system->priv->app_id_to_info, id);
if (!info)
continue;
shell_app_system_do_match (system, info, normalized_terms, &multiple_results, &prefix_results, &substring_results);
}
g_slist_foreach (normalized_terms, (GFunc)g_free, NULL);
g_slist_free (normalized_terms);
/* Note that a shorter term might have matched as a prefix, but
when extended only as a substring, so we have to redo the
sort rather than reusing the existing ordering */
return sort_and_concat_results (system, multiple_results, prefix_results, substring_results);
}
const char *
shell_app_info_get_id (ShellAppInfo *info)
{
switch (info->type)
{
case SHELL_APP_INFO_TYPE_ENTRY:
return gmenu_tree_entry_get_desktop_file_id ((GMenuTreeEntry*)info->entry);
case SHELL_APP_INFO_TYPE_DESKTOP_FILE:
return info->keyfile_path;
case SHELL_APP_INFO_TYPE_WINDOW:
return info->window_id;
}
g_assert_not_reached ();
return NULL;
}
#define DESKTOP_ENTRY_GROUP "Desktop Entry"
char *
shell_app_info_get_name (ShellAppInfo *info)
{
switch (info->type)
{
case SHELL_APP_INFO_TYPE_ENTRY:
return g_strdup (gmenu_tree_entry_get_name ((GMenuTreeEntry*)info->entry));
case SHELL_APP_INFO_TYPE_DESKTOP_FILE:
return g_key_file_get_locale_string (info->keyfile, DESKTOP_ENTRY_GROUP, "Name", NULL, NULL);
case SHELL_APP_INFO_TYPE_WINDOW:
{
char *title;
g_object_get (info->window, "title", &title, NULL);
if (!title)
title = g_strdup ("");
return title;
}
}
g_assert_not_reached ();
return NULL;
}
char *
shell_app_info_get_description (ShellAppInfo *info)
{
switch (info->type)
{
case SHELL_APP_INFO_TYPE_ENTRY:
return g_strdup (gmenu_tree_entry_get_comment ((GMenuTreeEntry*)info->entry));
case SHELL_APP_INFO_TYPE_DESKTOP_FILE:
return g_key_file_get_locale_string (info->keyfile, DESKTOP_ENTRY_GROUP, "Comment", NULL, NULL);
case SHELL_APP_INFO_TYPE_WINDOW:
return NULL;
}
g_assert_not_reached ();
return NULL;
}
char *
shell_app_info_get_executable (ShellAppInfo *info)
{
switch (info->type)
{
case SHELL_APP_INFO_TYPE_ENTRY:
return g_strdup (gmenu_tree_entry_get_exec ((GMenuTreeEntry*)info->entry));
case SHELL_APP_INFO_TYPE_DESKTOP_FILE:
return g_key_file_get_string (info->keyfile, DESKTOP_ENTRY_GROUP, "Exec", NULL);
case SHELL_APP_INFO_TYPE_WINDOW:
return NULL;
}
g_assert_not_reached ();
return NULL;
}
char *
shell_app_info_get_desktop_file_path (ShellAppInfo *info)
{
switch (info->type)
{
case SHELL_APP_INFO_TYPE_ENTRY:
return g_strdup (gmenu_tree_entry_get_desktop_file_path ((GMenuTreeEntry*)info->entry));
case SHELL_APP_INFO_TYPE_DESKTOP_FILE:
return g_strdup (info->keyfile_path);
case SHELL_APP_INFO_TYPE_WINDOW:
return NULL;
}
g_assert_not_reached ();
return NULL;
}
static GIcon *
themed_icon_from_name (const char *iconname)
{
GIcon *icon;
if (!iconname)
return NULL;
if (g_path_is_absolute (iconname))
{
GFile *file;
file = g_file_new_for_path (iconname);
icon = G_ICON (g_file_icon_new (file));
g_object_unref (file);
}
else
{
char *tmp_name, *p;
tmp_name = strdup (iconname);
/* Work around a common mistake in desktop files */
if ((p = strrchr (tmp_name, '.')) != NULL &&
(strcmp (p, ".png") == 0 ||
strcmp (p, ".xpm") == 0 ||
strcmp (p, ".svg") == 0))
{
*p = 0;
}
icon = g_themed_icon_new (tmp_name);
g_free (tmp_name);
}
return icon;
}
/**
* shell_app_info_get_icon:
* @info: A #ShellAppInfo
*
* Get the #GIcon associated with this app; for apps "faked" from a #MetaWindow,
* return %NULL.
*
* Returns: (transfer full): The icon for @info, or %NULL
*/
GIcon *
shell_app_info_get_icon (ShellAppInfo *info)
{
char *iconname = NULL;
GIcon *icon;
/* This code adapted from gdesktopappinfo.c
* Copyright (C) 2006-2007 Red Hat, Inc.
* Copyright © 2007 Ryan Lortie
* LGPL
*/
switch (info->type)
{
case SHELL_APP_INFO_TYPE_ENTRY:
return themed_icon_from_name (gmenu_tree_entry_get_icon ((GMenuTreeEntry*)info->entry));
case SHELL_APP_INFO_TYPE_DESKTOP_FILE:
iconname = g_key_file_get_locale_string (info->keyfile, DESKTOP_ENTRY_GROUP, "Icon", NULL, NULL);
icon = themed_icon_from_name (iconname);
g_free (iconname);
return icon;
break;
case SHELL_APP_INFO_TYPE_WINDOW:
return NULL;
}
g_assert_not_reached ();
return NULL;
}
/**
* shell_app_system_get_sections:
*
* return names of sections in applications menu.
*
* Returns: (element-type utf8) (transfer full): List of Names
*/
GList *
shell_app_system_get_sections (ShellAppSystem *system)
{
GList *res = NULL;
GSList *i, *contents;
GMenuTreeDirectory *root;
root = gmenu_tree_get_root_directory (system->priv->apps_tree);
if (G_UNLIKELY (!root))
g_error ("applications.menu not found.");
contents = gmenu_tree_directory_get_contents (root);
for (i = contents; i; i = i->next)
{
GMenuTreeItem *item = i->data;
if (gmenu_tree_item_get_type (item) == GMENU_TREE_ITEM_DIRECTORY)
{
char *name = g_strdup (gmenu_tree_directory_get_name ((GMenuTreeDirectory*)item));
g_assert (name);
res = g_list_append (res, name);
}
gmenu_tree_item_unref (item);
}
g_slist_free (contents);
return res;
}
/**
* shell_app_info_get_section:
*
* return name of section, that contain this application.
* Returns: (transfer full): section name
*/
char *
shell_app_info_get_section (ShellAppInfo *info)
{
char *name;
GMenuTreeDirectory *dir, *parent;
if (info->type != SHELL_APP_INFO_TYPE_ENTRY)
return NULL;
dir = gmenu_tree_item_get_parent ((GMenuTreeItem*)info->entry);
if (!dir)
return NULL;
parent = gmenu_tree_item_get_parent ((GMenuTreeItem*)dir);
if (!parent)
return NULL;
while (TRUE)
{
GMenuTreeDirectory *pparent = gmenu_tree_item_get_parent ((GMenuTreeItem*)parent);
if (!pparent)
break;
gmenu_tree_item_unref ((GMenuTreeItem*)dir);
dir = parent;
parent = pparent;
}
name = g_strdup (gmenu_tree_directory_get_name (dir));
gmenu_tree_item_unref ((GMenuTreeItem*)dir);
gmenu_tree_item_unref ((GMenuTreeItem*)parent);
return name;
}
gboolean
shell_app_info_get_is_nodisplay (ShellAppInfo *info)
{
switch (info->type)
{
case SHELL_APP_INFO_TYPE_ENTRY:
return gmenu_tree_entry_get_is_nodisplay ((GMenuTreeEntry*)info->entry);
case SHELL_APP_INFO_TYPE_DESKTOP_FILE:
case SHELL_APP_INFO_TYPE_WINDOW:
return FALSE;
}
g_assert_not_reached ();
return TRUE;
}
/**
* shell_app_info_is_transient:
*
* A "transient" application is one which represents
* just an open window, i.e. we don't know how to launch it
* again.
*/
gboolean
shell_app_info_is_transient (ShellAppInfo *info)
{
return info->type == SHELL_APP_INFO_TYPE_WINDOW;
}
/**
* shell_app_info_create_icon_texture:
*
* Look up the icon for this application, and create a #ClutterTexture
* for it at the given size.
*
* Return value: (transfer none): A floating #ClutterActor
*/
ClutterActor *
shell_app_info_create_icon_texture (ShellAppInfo *info, float size)
{
GIcon *icon;
ClutterActor *ret;
if (info->type == SHELL_APP_INFO_TYPE_WINDOW)
{
return st_texture_cache_bind_pixbuf_property (st_texture_cache_get_default (),
G_OBJECT (info->window),
"icon");
}
icon = shell_app_info_get_icon (info);
if (icon == NULL)
{
ret = clutter_texture_new ();
g_object_set (ret, "opacity", 0, "width", size, "height", size, NULL);
}
else
{
ret = st_texture_cache_load_gicon (st_texture_cache_get_default (), icon, (int)size);
g_object_unref (icon);
}
return ret;
}
/**
* shell_app_info_get_source_window:
* @info: A #ShellAppInfo
*
* If @info is tracking a #MetaWindow, return that window.
* Otherwise, return %NULL.
*/
MetaWindow *
shell_app_info_get_source_window (ShellAppInfo *info)
{
if (info->type == SHELL_APP_INFO_TYPE_WINDOW)
return info->window;
return NULL;
}
/**
* shell_app_info_launch_full:
* @timestamp: Event timestamp, or 0 for current event timestamp
* @uris: List of uris to pass to application
* @workspace: Start on this workspace, or -1 for default
* @startup_id: (out): Returned startup notification ID, or %NULL if none
* @error: A #GError
*/
gboolean
shell_app_info_launch_full (ShellAppInfo *info,
guint timestamp,
GList *uris,
int workspace,
char **startup_id,
GError **error)
{
GDesktopAppInfo *gapp;
char *filename;
GdkAppLaunchContext *context;
gboolean ret;
ShellGlobal *global;
MetaScreen *screen;
MetaDisplay *display;
if (startup_id)
*startup_id = NULL;
if (info->type == SHELL_APP_INFO_TYPE_WINDOW)
{
/* We can't pass URIs into a window; shouldn't hit this
* code path. If we do, fix the caller to disallow it.
*/
g_return_val_if_fail (uris == NULL, TRUE);
meta_window_activate (info->window, timestamp);
return TRUE;
}
else if (info->type == SHELL_APP_INFO_TYPE_ENTRY)
{
gapp = g_desktop_app_info_new (shell_app_info_get_id (info));
}
else
{
filename = shell_app_info_get_desktop_file_path (info);
gapp = g_desktop_app_info_new_from_filename (filename);
g_free (filename);
}
if (!gapp)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND, "Not found");
return FALSE;
}
global = shell_global_get ();
screen = shell_global_get_screen (global);
display = meta_screen_get_display (screen);
if (timestamp == 0)
timestamp = clutter_get_current_event_time ();
if (workspace < 0)
workspace = meta_screen_get_active_workspace_index (screen);
context = gdk_app_launch_context_new ();
gdk_app_launch_context_set_timestamp (context, timestamp);
gdk_app_launch_context_set_desktop (context, workspace);
ret = g_app_info_launch (G_APP_INFO (gapp), uris, (GAppLaunchContext*) context, error);
g_object_unref (G_OBJECT (gapp));
return ret;
}
gboolean
shell_app_info_launch (ShellAppInfo *info,
GError **error)
{
return shell_app_info_launch_full (info, 0, NULL, -1, NULL, error);
}
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