background: Introduce BgRecentSource
BgRecentSource is a background source implementation that keeps track of recently added backgrounds. The backgrounds are copied to $(local data dir)/backgrounds, which is monitored. When copying files to this folder, the current time is added as prefix to avoid filename collisions.
This commit is contained in:
Georges Basile Stavracas Neto
parent
5ba721b581
commit
9e39748d16
3 changed files with 513 additions and 0 deletions
473
panels/background/bg-recent-source.c
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473
panels/background/bg-recent-source.c
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/* bg-recent-source.c
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*
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* Copyright 2019 Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#define G_LOG_DOMAIN "bg-recent-source"
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#include "bg-recent-source.h"
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#include "cc-background-item.h"
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#define ATTRIBUTES G_FILE_ATTRIBUTE_STANDARD_NAME "," \
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G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE "," \
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G_FILE_ATTRIBUTE_TIME_MODIFIED
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struct _BgRecentSource
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{
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BgSource parent;
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GFile *backgrounds_folder;
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GFileMonitor *monitor;
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GCancellable *cancellable;
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GHashTable *items;
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};
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G_DEFINE_TYPE (BgRecentSource, bg_recent_source, BG_TYPE_SOURCE)
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static const gchar * const content_types[] = {
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"image/png",
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"image/jp2",
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"image/jpeg",
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"image/bmp",
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"image/svg+xml",
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"image/x-portable-anymap",
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NULL
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};
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static int
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sort_func (gconstpointer a,
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gconstpointer b,
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gpointer user_data)
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{
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CcBackgroundItem *item_a;
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CcBackgroundItem *item_b;
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guint64 modified_a;
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guint64 modified_b;
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int retval;
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item_a = (CcBackgroundItem *) a;
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item_b = (CcBackgroundItem *) b;
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modified_a = cc_background_item_get_modified (item_a);
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modified_b = cc_background_item_get_modified (item_b);
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retval = modified_b - modified_a;
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return retval;
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}
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static void
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add_file_from_info (BgRecentSource *self,
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GFile *file,
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GFileInfo *info)
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{
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g_autoptr(CcBackgroundItem) item = NULL;
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CcBackgroundItemFlags flags = 0;
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g_autofree gchar *source_uri = NULL;
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g_autofree gchar *uri = NULL;
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GListStore *store;
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const gchar *content_type;
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guint64 mtime;
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content_type = g_file_info_get_content_type (info);
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mtime = g_file_info_get_attribute_uint64 (info, G_FILE_ATTRIBUTE_TIME_MODIFIED);
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if (!content_type || !g_strv_contains (content_types, content_type))
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return;
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uri = g_file_get_uri (file);
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item = cc_background_item_new (uri);
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flags |= CC_BACKGROUND_ITEM_HAS_SHADING | CC_BACKGROUND_ITEM_HAS_PLACEMENT;
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g_object_set (G_OBJECT (item),
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"flags", flags,
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"shading", G_DESKTOP_BACKGROUND_SHADING_SOLID,
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"placement", G_DESKTOP_BACKGROUND_STYLE_ZOOM,
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"modified", mtime,
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"needs-download", FALSE,
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"source-url", source_uri,
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NULL);
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store = bg_source_get_liststore (BG_SOURCE (self));
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g_list_store_insert_sorted (store, item, sort_func, self);
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g_hash_table_insert (self->items, g_strdup (uri), g_object_ref (item));
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}
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static void
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remove_item (BgRecentSource *self,
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CcBackgroundItem *item)
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{
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GListStore *store;
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const gchar *uri;
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guint i;
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g_return_if_fail (BG_IS_RECENT_SOURCE (self));
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g_return_if_fail (CC_IS_BACKGROUND_ITEM (item));
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uri = cc_background_item_get_uri (item);
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store = bg_source_get_liststore (BG_SOURCE (self));
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g_debug ("Removing wallpaper %s", uri);
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for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (store)); i++)
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{
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g_autoptr(CcBackgroundItem) tmp = NULL;
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tmp = g_list_model_get_item (G_LIST_MODEL (store), i);
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if (tmp == item)
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{
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g_list_store_remove (store, i);
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break;
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}
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}
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g_hash_table_remove (self->items, cc_background_item_get_uri (item));
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}
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static void
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query_info_finished_cb (GObject *source,
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GAsyncResult *result,
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gpointer user_data)
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{
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BgRecentSource *self;
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g_autoptr(GFileInfo) file_info = NULL;
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g_autoptr(GError) error = NULL;
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GFile *file = NULL;
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file = G_FILE (source);
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file_info = g_file_query_info_finish (file, result, &error);
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if (error)
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{
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if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
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g_warning ("Could not get pictures file information: %s", error->message);
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return;
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}
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self = BG_RECENT_SOURCE (user_data);
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g_debug ("Adding wallpaper %s (%d)",
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g_file_info_get_name (file_info),
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G_IS_FILE (self->backgrounds_folder));
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add_file_from_info (self, file, file_info);
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}
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static void
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on_file_changed_cb (GFileMonitor *monitor,
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GFile *file,
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GFile *other_file,
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GFileMonitorEvent event_type,
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BgRecentSource *self)
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{
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g_autofree gchar *uri = NULL;
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switch (event_type)
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{
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case G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT:
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g_file_query_info_async (file,
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ATTRIBUTES,
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G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
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G_PRIORITY_DEFAULT,
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self->cancellable,
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query_info_finished_cb,
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self);
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break;
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case G_FILE_MONITOR_EVENT_DELETED:
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uri = g_file_get_uri (file);
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remove_item (self, g_hash_table_lookup (self->items, uri));
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break;
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default:
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return;
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}
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}
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static int
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file_sort_func (gconstpointer a,
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gconstpointer b)
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{
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GFileInfo *file_a = G_FILE_INFO (a);
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GFileInfo *file_b = G_FILE_INFO (b);
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guint64 modified_a, modified_b;
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modified_a = g_file_info_get_attribute_uint64 (file_a, G_FILE_ATTRIBUTE_TIME_MODIFIED);
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modified_b = g_file_info_get_attribute_uint64 (file_b, G_FILE_ATTRIBUTE_TIME_MODIFIED);
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return modified_b - modified_a;
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}
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static void
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file_info_async_ready_cb (GObject *source,
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GAsyncResult *result,
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gpointer user_data)
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{
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BgRecentSource *self;
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g_autolist(GFileInfo) file_infos = NULL;
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g_autoptr(GError) error = NULL;
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GFile *parent = NULL;
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GList *l;
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file_infos = g_file_enumerator_next_files_finish (G_FILE_ENUMERATOR (source),
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result,
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&error);
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if (error)
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{
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if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
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g_warning ("Could not get pictures file information: %s", error->message);
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return;
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}
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self = BG_RECENT_SOURCE (user_data);
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parent = g_file_enumerator_get_container (G_FILE_ENUMERATOR (source));
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file_infos = g_list_sort (file_infos, file_sort_func);
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for (l = file_infos; l; l = l->next)
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{
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g_autoptr(GFile) file = NULL;
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GFileInfo *info;
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info = l->data;
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file = g_file_get_child (parent, g_file_info_get_name (info));
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g_debug ("Found recent wallpaper %s", g_file_info_get_name (info));
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add_file_from_info (self, file, info);
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}
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g_file_enumerator_close (G_FILE_ENUMERATOR (source), self->cancellable, &error);
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if (error)
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g_warning ("Error closing file enumerator: %s", error->message);
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}
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static void
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enumerate_children_finished_cb (GObject *source,
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GAsyncResult *result,
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gpointer user_data)
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{
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BgRecentSource *self = BG_RECENT_SOURCE (user_data);
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g_autoptr(GFileEnumerator) enumerator = NULL;
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g_autoptr(GError) error = NULL;
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enumerator = g_file_enumerate_children_finish (G_FILE (source), result, &error);
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if (error)
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{
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if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
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g_warning ("Could not fill pictures source: %s", error->message);
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return;
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}
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g_file_enumerator_next_files_async (enumerator,
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G_MAXINT,
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G_PRIORITY_DEFAULT,
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self->cancellable,
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file_info_async_ready_cb,
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self);
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}
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static void
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load_backgrounds (BgRecentSource *self)
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{
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g_autofree gchar *backgrounds_path = NULL;
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g_autoptr(GError) error = NULL;
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if (!g_file_make_directory_with_parents (self->backgrounds_folder, self->cancellable, &error) &&
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!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_EXISTS))
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{
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g_critical ("Failed to create local background directory: %s", error->message);
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return;
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}
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backgrounds_path = g_file_get_path (self->backgrounds_folder);
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g_debug ("Enumerating wallpapers under %s", backgrounds_path);
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g_file_enumerate_children_async (self->backgrounds_folder,
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ATTRIBUTES,
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G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
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G_PRIORITY_DEFAULT,
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self->cancellable,
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enumerate_children_finished_cb,
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self);
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self->monitor = g_file_monitor_directory (self->backgrounds_folder,
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G_FILE_MONITOR_WATCH_MOVES,
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self->cancellable,
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&error);
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if (!self->monitor)
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{
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g_critical ("Failed to monitor background directory: %s", error->message);
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return;
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}
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g_signal_connect (self->monitor, "changed", G_CALLBACK (on_file_changed_cb), self);
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}
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/* Callbacks */
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static void
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on_file_copied_cb (GObject *source,
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GAsyncResult *result,
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gpointer user_data)
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{
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BgRecentSource *self = BG_RECENT_SOURCE (user_data);
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g_autoptr(GError) error = NULL;
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g_file_copy_finish (G_FILE (source), result, &error);
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if (error)
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{
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if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
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g_critical ("Failed to copy file: %s", error->message);
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}
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else
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{
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g_autofree gchar *original_file = g_file_get_path (G_FILE (source));
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g_debug ("Successfully copied wallpaper: %s", original_file);
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}
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g_object_unref (self);
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}
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static void
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on_file_deleted_cb (GObject *source,
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GAsyncResult *result,
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gpointer user_data)
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{
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BgRecentSource *self = BG_RECENT_SOURCE (user_data);
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g_autoptr(GError) error = NULL;
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g_file_delete_finish (G_FILE (source), result, &error);
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if (error)
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{
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if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
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g_critical ("Failed to delete wallpaper: %s", error->message);
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}
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else
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{
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g_autofree gchar *original_file = g_file_get_path (G_FILE (source));
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g_debug ("Successfully deleted wallpaper: %s", original_file);
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}
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g_object_unref (self);
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}
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/* GObject overrides */
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static void
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bg_recent_source_finalize (GObject *object)
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{
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BgRecentSource *self = (BgRecentSource *)object;
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g_cancellable_cancel (self->cancellable);
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g_clear_object (&self->cancellable);
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g_clear_object (&self->monitor);
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G_OBJECT_CLASS (bg_recent_source_parent_class)->finalize (object);
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}
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static void
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bg_recent_source_class_init (BgRecentSourceClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->finalize = bg_recent_source_finalize;
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}
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static void
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bg_recent_source_init (BgRecentSource *self)
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{
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g_autofree gchar *backgrounds_path = NULL;
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backgrounds_path = g_build_filename (g_get_user_data_dir (), "backgrounds", NULL);
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self->items = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref);
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self->cancellable = g_cancellable_new ();
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self->backgrounds_folder = g_file_new_for_path (backgrounds_path);
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load_backgrounds (self);
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}
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BgRecentSource*
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bg_recent_source_new (GtkWidget *widget)
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{
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return g_object_new (BG_TYPE_RECENT_SOURCE,
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"widget", widget,
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NULL);
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}
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void
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bg_recent_source_add_file (BgRecentSource *self,
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const gchar *path)
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{
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g_autoptr(GDateTime) now = NULL;
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g_autofree gchar *destination_name = NULL;
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g_autofree gchar *formatted_now = NULL;
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g_autofree gchar *basename = NULL;
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g_autoptr(GFile) destination = NULL;
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g_autoptr(GFile) file = NULL;
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g_return_if_fail (BG_IS_RECENT_SOURCE (self));
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g_return_if_fail (path && *path);
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g_debug ("Importing wallpaper %s", path);
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now = g_date_time_new_now_local ();
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formatted_now = g_date_time_format (now, "%Y-%m-%d-%H-%M-%S");
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file = g_file_new_for_path (path);
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basename = g_file_get_basename (file);
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destination_name = g_strdup_printf ("%s-%s", formatted_now, basename);
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destination = g_file_get_child (self->backgrounds_folder, destination_name);
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g_file_copy_async (file,
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destination,
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G_FILE_COPY_NONE,
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G_PRIORITY_DEFAULT,
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self->cancellable,
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NULL, NULL,
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on_file_copied_cb,
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g_object_ref (self));
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}
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void
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bg_recent_source_remove_item (BgRecentSource *self,
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CcBackgroundItem *item)
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{
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g_autoptr(GFile) file = NULL;
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const gchar *uri;
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g_return_if_fail (BG_IS_RECENT_SOURCE (self));
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g_return_if_fail (CC_IS_BACKGROUND_ITEM (item));
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uri = cc_background_item_get_uri (item);
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file = g_file_new_for_uri (uri);
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g_file_delete_async (file,
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G_PRIORITY_DEFAULT,
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self->cancellable,
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on_file_deleted_cb,
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g_object_ref (self));
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}
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39
panels/background/bg-recent-source.h
Normal file
39
panels/background/bg-recent-source.h
Normal file
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@ -0,0 +1,39 @@
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/* bg-recent-source.h
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*
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* Copyright 2019 Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
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*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* SPDX-License-Identifier: GPL-3.0-or-later
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include "bg-source.h"
|
||||
#include "cc-background-item.h"
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define BG_TYPE_RECENT_SOURCE (bg_recent_source_get_type())
|
||||
G_DECLARE_FINAL_TYPE (BgRecentSource, bg_recent_source, BG, RECENT_SOURCE, BgSource)
|
||||
|
||||
BgRecentSource* bg_recent_source_new (GtkWidget *widget);
|
||||
|
||||
void bg_recent_source_add_file (BgRecentSource *self,
|
||||
const gchar *path);
|
||||
|
||||
void bg_recent_source_remove_item (BgRecentSource *self,
|
||||
CcBackgroundItem *item);
|
||||
|
||||
G_END_DECLS
|
||||
|
|
@ -77,6 +77,7 @@ common_sources += gnome.compile_resources(
|
|||
sources = common_sources + files(
|
||||
'bg-colors-source.c',
|
||||
'bg-pictures-source.c',
|
||||
'bg-recent-source.c',
|
||||
'bg-source.c',
|
||||
'bg-wallpapers-source.c',
|
||||
'cc-background-chooser.c',
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue