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gnome-control-center/panels/background/cc-background-panel.c

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/*
* Copyright (C) 2010 Intel, Inc
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Author: Thomas Wood <thomas.wood@intel.com>
*
*/
#include <config.h>
#include <string.h>
#include <glib/gi18n-lib.h>
#include <gdesktop-enums.h>
#include "cc-background-panel.h"
#include "bg-wallpapers-source.h"
#include "bg-pictures-source.h"
#include "bg-colors-source.h"
#ifdef HAVE_LIBSOCIALWEB
#include "bg-flickr-source.h"
#endif
#include "cc-background-item.h"
#include "cc-background-xml.h"
#define WP_PATH_ID "org.gnome.desktop.background"
#define WP_URI_KEY "picture-uri"
#define WP_OPTIONS_KEY "picture-options"
#define WP_SHADING_KEY "color-shading-type"
#define WP_PCOLOR_KEY "primary-color"
#define WP_SCOLOR_KEY "secondary-color"
enum {
COL_SOURCE_NAME,
COL_SOURCE_TYPE,
COL_SOURCE,
NUM_COLS
};
G_DEFINE_DYNAMIC_TYPE (CcBackgroundPanel, cc_background_panel, CC_TYPE_PANEL)
#define BACKGROUND_PANEL_PRIVATE(o) \
(G_TYPE_INSTANCE_GET_PRIVATE ((o), CC_TYPE_BACKGROUND_PANEL, CcBackgroundPanelPrivate))
struct _CcBackgroundPanelPrivate
{
GtkBuilder *builder;
BgWallpapersSource *wallpapers_source;
BgPicturesSource *pictures_source;
BgColorsSource *colors_source;
#ifdef HAVE_LIBSOCIALWEB
BgFlickrSource *flickr_source;
#endif
GSettings *settings;
GnomeDesktopThumbnailFactory *thumb_factory;
CcBackgroundItem *current_background;
gint current_source;
GCancellable *copy_cancellable;
GtkWidget *spinner;
GdkPixbuf *display_base;
GdkPixbuf *display_overlay;
};
enum
{
SOURCE_WALLPAPERS,
SOURCE_PICTURES,
SOURCE_COLORS,
#ifdef HAVE_LIBSOCIALWEB
SOURCE_FLICKR
#endif
};
#define WID(y) (GtkWidget *) gtk_builder_get_object (priv->builder, y)
static void
cc_background_panel_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
switch (property_id)
{
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
cc_background_panel_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
switch (property_id)
{
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
cc_background_panel_dispose (GObject *object)
{
CcBackgroundPanelPrivate *priv = CC_BACKGROUND_PANEL (object)->priv;
if (priv->builder)
{
g_object_unref (priv->builder);
priv->builder = NULL;
/* destroying the builder object will also destroy the spinner */
priv->spinner = NULL;
}
if (priv->wallpapers_source)
{
g_object_unref (priv->wallpapers_source);
priv->wallpapers_source = NULL;
}
if (priv->pictures_source)
{
g_object_unref (priv->pictures_source);
priv->pictures_source = NULL;
}
if (priv->colors_source)
{
g_object_unref (priv->colors_source);
priv->colors_source = NULL;
}
#ifdef HAVE_LIBSOCIALWEB
if (priv->flickr_source)
{
g_object_unref (priv->flickr_source);
priv->flickr_source = NULL;
}
#endif
if (priv->settings)
{
g_object_unref (priv->settings);
priv->settings = NULL;
}
if (priv->copy_cancellable)
{
/* cancel any copy operation */
g_cancellable_cancel (priv->copy_cancellable);
g_object_unref (priv->copy_cancellable);
priv->copy_cancellable = NULL;
}
if (priv->thumb_factory)
{
g_object_unref (priv->thumb_factory);
priv->thumb_factory = NULL;
}
if (priv->display_base)
{
g_object_unref (priv->display_base);
priv->display_base = NULL;
}
if (priv->display_overlay)
{
g_object_unref (priv->display_overlay);
priv->display_overlay = NULL;
}
G_OBJECT_CLASS (cc_background_panel_parent_class)->dispose (object);
}
static void
cc_background_panel_finalize (GObject *object)
{
CcBackgroundPanelPrivate *priv = CC_BACKGROUND_PANEL (object)->priv;
if (priv->current_background)
{
g_object_unref (priv->current_background);
priv->current_background = NULL;
}
G_OBJECT_CLASS (cc_background_panel_parent_class)->finalize (object);
}
static void
cc_background_panel_class_init (CcBackgroundPanelClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (CcBackgroundPanelPrivate));
object_class->get_property = cc_background_panel_get_property;
object_class->set_property = cc_background_panel_set_property;
object_class->dispose = cc_background_panel_dispose;
object_class->finalize = cc_background_panel_finalize;
}
static void
cc_background_panel_class_finalize (CcBackgroundPanelClass *klass)
{
}
static void
source_update_edit_box (CcBackgroundPanelPrivate *priv,
gboolean initial)
{
CcBackgroundItemFlags flags;
flags = cc_background_item_get_flags (priv->current_background);
if ((flags & CC_BACKGROUND_ITEM_HAS_SCOLOR &&
priv->current_source != SOURCE_COLORS) ||
cc_background_item_get_shading (priv->current_background) == G_DESKTOP_BACKGROUND_SHADING_SOLID)
gtk_widget_hide (WID ("style-scolor"));
else
gtk_widget_show (WID ("style-scolor"));
if (flags & CC_BACKGROUND_ITEM_HAS_PCOLOR &&
priv->current_source != SOURCE_COLORS)
gtk_widget_hide (WID ("style-pcolor"));
else
gtk_widget_show (WID ("style-pcolor"));
if (flags & CC_BACKGROUND_ITEM_HAS_PLACEMENT ||
cc_background_item_get_uri (priv->current_background) == NULL)
gtk_widget_hide (WID ("style-combobox"));
else
gtk_widget_show (WID ("style-combobox"));
/* FIXME What to do if the background has a gradient shading
* and provides the colours? */
}
static void
source_changed_cb (GtkComboBox *combo,
CcBackgroundPanelPrivate *priv)
{
GtkTreeIter iter;
GtkTreeModel *model;
GtkIconView *view;
guint type;
BgSource *source;
gtk_combo_box_get_active_iter (combo, &iter);
model = gtk_combo_box_get_model (combo);
gtk_tree_model_get (model, &iter,
COL_SOURCE_TYPE, &type,
COL_SOURCE, &source, -1);
view = (GtkIconView *) gtk_builder_get_object (priv->builder,
"backgrounds-iconview");
gtk_icon_view_set_model (view,
GTK_TREE_MODEL (bg_source_get_liststore (source)));
}
static void
select_style (GtkComboBox *box,
GDesktopBackgroundStyle new_style)
{
GtkTreeModel *model;
GtkTreeIter iter;
gboolean cont;
model = gtk_combo_box_get_model (box);
cont = gtk_tree_model_get_iter_first (model, &iter);
while (cont != FALSE)
{
GDesktopBackgroundStyle style;
gtk_tree_model_get (model, &iter,
1, &style,
-1);
if (style == new_style)
{
gtk_combo_box_set_active_iter (box, &iter);
break;
}
cont = gtk_tree_model_iter_next (model, &iter);
}
if (cont == FALSE)
gtk_combo_box_set_active (box, -1);
}
static void
update_preview (CcBackgroundPanelPrivate *priv,
CcBackgroundItem *item)
{
gchar *markup;
gboolean changes_with_time;
if (item && priv->current_background)
{
g_object_unref (priv->current_background);
priv->current_background = cc_background_item_copy (item);
cc_background_item_load (priv->current_background, NULL);
}
source_update_edit_box (priv, FALSE);
changes_with_time = FALSE;
if (priv->current_background)
{
GdkColor pcolor, scolor;
markup = g_strdup_printf ("<b>%s</b>", cc_background_item_get_name (priv->current_background));
gtk_label_set_markup (GTK_LABEL (WID ("background-label")), markup);
g_free (markup);
gtk_label_set_text (GTK_LABEL (WID ("size_label")), cc_background_item_get_size (priv->current_background));
gdk_color_parse (cc_background_item_get_pcolor (priv->current_background), &pcolor);
gdk_color_parse (cc_background_item_get_scolor (priv->current_background), &scolor);
gtk_color_button_set_color (GTK_COLOR_BUTTON (WID ("style-pcolor")), &pcolor);
gtk_color_button_set_color (GTK_COLOR_BUTTON (WID ("style-scolor")), &scolor);
select_style (GTK_COMBO_BOX (WID ("style-combobox")),
cc_background_item_get_placement (priv->current_background));
changes_with_time = cc_background_item_changes_with_time (priv->current_background);
}
gtk_widget_set_visible (WID ("slide_image"), changes_with_time);
gtk_widget_set_visible (WID ("slide-label"), changes_with_time);
gtk_widget_queue_draw (WID ("preview-area"));
}
static char *
get_save_path (void)
{
return g_build_filename (g_get_user_config_dir (),
"gnome-control-center",
"backgrounds",
"last-edited.xml",
NULL);
}
static gboolean
create_save_dir (void)
{
char *path;
path = g_build_filename (g_get_user_config_dir (),
"gnome-control-center",
"backgrounds",
NULL);
if (g_mkdir_with_parents (path, 0755) < 0)
{
g_warning ("Failed to create directory '%s'", path);
g_free (path);
return FALSE;
}
g_free (path);
return TRUE;
}
static void
copy_finished_cb (GObject *source_object,
GAsyncResult *result,
gpointer pointer)
{
GError *err = NULL;
CcBackgroundPanel *panel = (CcBackgroundPanel *) pointer;
CcBackgroundPanelPrivate *priv = panel->priv;
CcBackgroundItem *item;
if (!g_file_copy_finish (G_FILE (source_object), result, &err))
{
if (err->code != G_IO_ERROR_CANCELLED)
g_warning ("Failed to copy image to cache location: %s", err->message);
g_error_free (err);
}
item = g_object_get_data (source_object, "item");
/* the panel may have been destroyed before the callback is run, so be sure
* to check the widgets are not NULL */
if (priv->spinner)
{
gtk_widget_destroy (GTK_WIDGET (priv->spinner));
priv->spinner = NULL;
}
if (priv->current_background)
cc_background_item_load (priv->current_background, NULL);
if (priv->builder)
{
char *filename;
update_preview (priv, item);
/* Save the source XML if there is one */
filename = get_save_path ();
if (create_save_dir ())
cc_background_xml_save (priv->current_background, filename);
}
/* remove the reference taken when the copy was set up */
g_object_unref (panel);
}
static void
update_remove_button (CcBackgroundPanel *panel,
CcBackgroundItem *item)
{
CcBackgroundPanelPrivate *priv;
const char *uri;
char *cache_path;
GFile *bg, *cache, *parent;
gboolean sensitive = FALSE;
priv = panel->priv;
if (priv->current_source != SOURCE_PICTURES)
goto bail;
uri = cc_background_item_get_uri (item);
if (uri == NULL)
goto bail;
bg = g_file_new_for_uri (uri);
parent = g_file_get_parent (bg);
if (parent == NULL)
{
g_object_unref (bg);
goto bail;
}
cache_path = bg_pictures_source_get_cache_path ();
cache = g_file_new_for_path (cache_path);
g_free (cache_path);
if (g_file_equal (parent, cache))
sensitive = TRUE;
g_object_unref (parent);
g_object_unref (cache);
bail:
gtk_widget_set_sensitive (WID ("remove_button"), sensitive);
}
static CcBackgroundItem *
get_selected_item (CcBackgroundPanel *panel)
{
CcBackgroundPanelPrivate *priv = panel->priv;
GtkIconView *icon_view;
GtkTreeIter iter;
GtkTreeModel *model;
GList *list;
CcBackgroundItem *item;
icon_view = GTK_ICON_VIEW (WID ("backgrounds-iconview"));
item = NULL;
list = gtk_icon_view_get_selected_items (icon_view);
if (!list)
return NULL;
model = gtk_icon_view_get_model (icon_view);
if (gtk_tree_model_get_iter (model, &iter, (GtkTreePath*) list->data) == FALSE)
goto bail;
gtk_tree_model_get (model, &iter, 1, &item, -1);
bail:
g_list_foreach (list, (GFunc)gtk_tree_path_free, NULL);
g_list_free (list);
return item;
}
static void
backgrounds_changed_cb (GtkIconView *icon_view,
CcBackgroundPanel *panel)
{
GtkTreeIter iter;
GtkTreeModel *model;
CcBackgroundItem *item;
CcBackgroundPanelPrivate *priv = panel->priv;
char *pcolor, *scolor;
gboolean draw_preview = TRUE;
const char *uri;
CcBackgroundItemFlags flags;
char *filename;
item = get_selected_item (panel);
if (item == NULL)
return;
/* Update current source */
model = gtk_combo_box_get_model (GTK_COMBO_BOX (WID ("sources-combobox")));
gtk_combo_box_get_active_iter (GTK_COMBO_BOX (WID ("sources-combobox")),
&iter);
gtk_tree_model_get (model, &iter,
COL_SOURCE_TYPE, &priv->current_source, -1);
uri = cc_background_item_get_uri (item);
flags = cc_background_item_get_flags (item);
if ((flags & CC_BACKGROUND_ITEM_HAS_URI) && uri == NULL)
{
g_settings_set_enum (priv->settings, WP_OPTIONS_KEY, G_DESKTOP_BACKGROUND_STYLE_NONE);
g_settings_set_string (priv->settings, WP_URI_KEY, "");
}
else if (cc_background_item_get_source_url (item) != NULL &&
cc_background_item_get_needs_download (item))
{
GFile *source, *dest;
gchar *cache_path, *basename, *dest_path, *display_name, *dest_uri;
GdkPixbuf *pixbuf;
cache_path = bg_pictures_source_get_cache_path ();
if (g_mkdir_with_parents (cache_path, 0755) < 0)
{
g_warning ("Failed to create directory '%s'", cache_path);
g_free (cache_path);
return;
}
g_free (cache_path);
dest_path = bg_pictures_source_get_unique_path (cc_background_item_get_source_url (item));
dest = g_file_new_for_path (dest_path);
g_free (dest_path);
source = g_file_new_for_uri (cc_background_item_get_source_url (item));
basename = g_file_get_basename (source);
display_name = g_filename_display_name (basename);
dest_path = g_file_get_path (dest);
g_free (basename);
/* create a blank image to use until the source image is ready */
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, 1, 1);
gdk_pixbuf_fill (pixbuf, 0x00000000);
gdk_pixbuf_save (pixbuf, dest_path, "png", NULL, NULL);
g_object_unref (pixbuf);
g_free (dest_path);
if (priv->copy_cancellable)
{
g_cancellable_cancel (priv->copy_cancellable);
g_cancellable_reset (priv->copy_cancellable);
}
if (priv->spinner)
{
gtk_widget_destroy (GTK_WIDGET (priv->spinner));
priv->spinner = NULL;
}
/* create a spinner while the file downloads */
priv->spinner = gtk_spinner_new ();
gtk_spinner_start (GTK_SPINNER (priv->spinner));
gtk_box_pack_start (GTK_BOX (WID ("bottom-hbox")), priv->spinner, FALSE,
FALSE, 6);
gtk_widget_show (priv->spinner);
/* reference the panel in case it is removed before the copy is
* finished */
g_object_ref (panel);
g_object_set_data_full (G_OBJECT (source), "item", g_object_ref (item), g_object_unref);
g_file_copy_async (source, dest, G_FILE_COPY_OVERWRITE,
G_PRIORITY_DEFAULT, priv->copy_cancellable,
NULL, NULL,
copy_finished_cb, panel);
g_object_unref (source);
dest_uri = g_file_get_uri (dest);
g_object_unref (dest);
g_settings_set_string (priv->settings, WP_URI_KEY, dest_uri);
g_object_set (G_OBJECT (item),
"uri", dest_uri,
"needs-download", FALSE,
"name", display_name,
NULL);
g_free (display_name);
g_free (dest_uri);
/* delay the updated drawing of the preview until the copy finishes */
draw_preview = FALSE;
}
else
{
g_settings_set_string (priv->settings, WP_URI_KEY, uri);
}
/* Also set the placement if we have a URI and the previous value was none */
if (flags & CC_BACKGROUND_ITEM_HAS_PLACEMENT)
{
g_settings_set_enum (priv->settings, WP_OPTIONS_KEY, cc_background_item_get_placement (item));
}
else if (uri != NULL)
{
GDesktopBackgroundStyle style;
style = g_settings_get_enum (priv->settings, WP_OPTIONS_KEY);
if (style == G_DESKTOP_BACKGROUND_STYLE_NONE)
g_settings_set_enum (priv->settings, WP_OPTIONS_KEY, cc_background_item_get_placement (item));
}
if (flags & CC_BACKGROUND_ITEM_HAS_SHADING)
g_settings_set_enum (priv->settings, WP_SHADING_KEY, cc_background_item_get_shading (item));
/* When changing to a background with colours set,
* don't overwrite what's in GSettings, but read
* from it instead.
* We have a hack for the colors source though */
if (flags & CC_BACKGROUND_ITEM_HAS_PCOLOR &&
priv->current_source != SOURCE_COLORS)
{
g_settings_set_string (priv->settings, WP_PCOLOR_KEY, cc_background_item_get_pcolor (item));
}
else
{
pcolor = g_settings_get_string (priv->settings, WP_PCOLOR_KEY);
g_object_set (G_OBJECT (item), "primary-color", pcolor, NULL);
}
if (flags & CC_BACKGROUND_ITEM_HAS_SCOLOR &&
priv->current_source != SOURCE_COLORS)
{
g_settings_set_string (priv->settings, WP_SCOLOR_KEY, cc_background_item_get_scolor (item));
}
else
{
scolor = g_settings_get_string (priv->settings, WP_SCOLOR_KEY);
g_object_set (G_OBJECT (item), "secondary-color", scolor, NULL);
}
/* Apply all changes */
g_settings_apply (priv->settings);
update_remove_button (panel, item);
/* update the preview information */
if (draw_preview != FALSE)
{
update_preview (priv, item);
/* Save the source XML if there is one */
filename = get_save_path ();
if (create_save_dir ())
cc_background_xml_save (priv->current_background, filename);
}
}
static gboolean
preview_draw_cb (GtkWidget *widget,
cairo_t *cr,
CcBackgroundPanel *panel)
{
GtkAllocation allocation;
CcBackgroundPanelPrivate *priv = panel->priv;
GdkPixbuf *pixbuf = NULL;
const gint preview_width = 416;
const gint preview_height = 248;
const gint preview_x = 45;
const gint preview_y = 84;
GdkPixbuf *preview, *temp;
gint size;
gtk_widget_get_allocation (widget, &allocation);
if (priv->current_background)
{
GIcon *icon;
icon = cc_background_item_get_frame_thumbnail (priv->current_background,
priv->thumb_factory,
preview_width,
preview_height,
-2, TRUE);
pixbuf = GDK_PIXBUF (icon);
}
if (!priv->display_base)
return FALSE;
preview = gdk_pixbuf_copy (priv->display_base);
if (pixbuf)
{
gdk_pixbuf_composite (pixbuf, preview,
preview_x, preview_y,
preview_width, preview_height,
preview_x, preview_y, 1, 1,
GDK_INTERP_BILINEAR, 255);
g_object_unref (pixbuf);
}
if (priv->display_overlay)
{
gdk_pixbuf_composite (priv->display_overlay, preview,
0, 0, 512, 512,
0, 0, 1, 1,
GDK_INTERP_BILINEAR, 255);
}
if (allocation.width < allocation.height)
size = allocation.width;
else
size = allocation.height;
temp = gdk_pixbuf_scale_simple (preview, size, size, GDK_INTERP_BILINEAR);
gdk_cairo_set_source_pixbuf (cr,
temp,
allocation.width / 2 - (size / 2),
allocation.height / 2 - (size / 2));
cairo_paint (cr);
g_object_unref (temp);
g_object_unref (preview);
return TRUE;
}
static void
style_changed_cb (GtkComboBox *box,
CcBackgroundPanel *panel)
{
CcBackgroundPanelPrivate *priv = panel->priv;
GtkTreeModel *model;
GtkTreeIter iter;
GDesktopBackgroundStyle value;
if (!gtk_combo_box_get_active_iter (box, &iter))
{
return;
}
model = gtk_combo_box_get_model (box);
gtk_tree_model_get (model, &iter, 1, &value, -1);
g_settings_set_enum (priv->settings, WP_OPTIONS_KEY, value);
if (priv->current_background)
g_object_set (G_OBJECT (priv->current_background), "placement", value, NULL);
g_settings_apply (priv->settings);
update_preview (priv, NULL);
}
static void
color_changed_cb (GtkColorButton *button,
CcBackgroundPanel *panel)
{
CcBackgroundPanelPrivate *priv = panel->priv;
GdkColor color;
gchar *value;
gboolean is_pcolor = FALSE;
gtk_color_button_get_color (button, &color);
if (WID ("style-pcolor") == GTK_WIDGET (button))
is_pcolor = TRUE;
value = gdk_color_to_string (&color);
if (priv->current_background)
{
g_object_set (G_OBJECT (priv->current_background),
is_pcolor ? "primary-color" : "secondary-color", value, NULL);
}
g_settings_set_string (priv->settings,
is_pcolor ? WP_PCOLOR_KEY : WP_SCOLOR_KEY, value);
g_settings_apply (priv->settings);
g_free (value);
update_preview (priv, NULL);
}
static void
row_inserted (GtkTreeModel *tree_model,
GtkTreePath *path,
GtkTreeIter *iter,
CcBackgroundPanel *panel)
{
GtkListStore *store;
CcBackgroundPanelPrivate *priv;
priv = panel->priv;
store = bg_source_get_liststore (BG_SOURCE (panel->priv->pictures_source));
g_signal_handlers_disconnect_by_func (G_OBJECT (store), G_CALLBACK (row_inserted), panel);
/* Change source */
gtk_combo_box_set_active (GTK_COMBO_BOX (WID ("sources-combobox")), SOURCE_PICTURES);
/* And select the newly added item */
gtk_icon_view_select_path (GTK_ICON_VIEW (WID ("backgrounds-iconview")), path);
}
static void
add_custom_wallpaper (CcBackgroundPanel *panel,
const char *uri)
{
GtkListStore *store;
store = bg_source_get_liststore (BG_SOURCE (panel->priv->pictures_source));
g_signal_connect (G_OBJECT (store), "row-inserted",
G_CALLBACK (row_inserted), panel);
if (bg_pictures_source_add (panel->priv->pictures_source, uri) == FALSE) {
g_signal_handlers_disconnect_by_func (G_OBJECT (store), G_CALLBACK (row_inserted), panel);
return;
}
/* Wait for the item to get added */
}
static void
file_chooser_response (GtkDialog *chooser,
gint response,
CcBackgroundPanel *panel)
{
GSList *selected, *l;
if (response != GTK_RESPONSE_ACCEPT)
{
gtk_widget_destroy (GTK_WIDGET (chooser));
return;
}
selected = gtk_file_chooser_get_uris (GTK_FILE_CHOOSER (chooser));
gtk_widget_destroy (GTK_WIDGET (chooser));
for (l = selected; l != NULL; l = l->next)
{
char *uri = l->data;
add_custom_wallpaper (panel, uri);
g_free (uri);
}
g_slist_free (selected);
}
static void
update_chooser_preview (GtkFileChooser *chooser,
CcBackgroundPanel *panel)
{
GnomeDesktopThumbnailFactory *thumb_factory;
char *uri;
thumb_factory = panel->priv->thumb_factory;
uri = gtk_file_chooser_get_preview_uri (chooser);
if (uri)
{
GdkPixbuf *pixbuf = NULL;
const gchar *mime_type = NULL;
GFile *file;
GFileInfo *file_info;
GtkWidget *preview;
preview = gtk_file_chooser_get_preview_widget (chooser);
file = g_file_new_for_uri (uri);
file_info = g_file_query_info (file,
G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE,
G_FILE_QUERY_INFO_NONE,
NULL, NULL);
g_object_unref (file);
if (file_info != NULL) {
mime_type = g_file_info_get_content_type (file_info);
g_object_unref (file_info);
}
if (mime_type)
{
pixbuf = gnome_desktop_thumbnail_factory_generate_thumbnail (thumb_factory,
uri,
mime_type);
}
gtk_dialog_set_response_sensitive (GTK_DIALOG (chooser),
GTK_RESPONSE_ACCEPT,
(pixbuf != NULL));
if (pixbuf != NULL)
{
gtk_image_set_from_pixbuf (GTK_IMAGE (preview), pixbuf);
g_object_unref (pixbuf);
}
else
{
gtk_image_set_from_stock (GTK_IMAGE (preview),
GTK_STOCK_DIALOG_QUESTION,
GTK_ICON_SIZE_DIALOG);
}
if (bg_pictures_source_is_known (panel->priv->pictures_source, uri))
gtk_dialog_set_response_sensitive (GTK_DIALOG (chooser), GTK_RESPONSE_ACCEPT, FALSE);
else
gtk_dialog_set_response_sensitive (GTK_DIALOG (chooser), GTK_RESPONSE_ACCEPT, TRUE);
g_free (uri);
}
gtk_file_chooser_set_preview_widget_active (chooser, TRUE);
}
static void
add_button_clicked (GtkButton *button,
CcBackgroundPanel *panel)
{
GtkWidget *chooser;
const gchar *folder;
GtkWidget *preview;
GtkFileFilter *filter;
CcBackgroundPanelPrivate *priv;
priv = panel->priv;
filter = gtk_file_filter_new ();
gtk_file_filter_add_mime_type (filter, "image/png");
gtk_file_filter_add_mime_type (filter, "image/jpeg");
chooser = gtk_file_chooser_dialog_new (_("Browse for more pictures"),
GTK_WINDOW (gtk_widget_get_toplevel (WID ("background-panel"))),
GTK_FILE_CHOOSER_ACTION_OPEN,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
NULL);
gtk_file_chooser_set_filter (GTK_FILE_CHOOSER (chooser), filter);
gtk_file_chooser_set_select_multiple (GTK_FILE_CHOOSER (chooser), TRUE);
gtk_window_set_modal (GTK_WINDOW (chooser), TRUE);
preview = gtk_image_new ();
gtk_widget_set_size_request (preview, 128, -1);
gtk_file_chooser_set_preview_widget (GTK_FILE_CHOOSER (chooser), preview);
gtk_file_chooser_set_use_preview_label (GTK_FILE_CHOOSER (chooser), FALSE);
gtk_widget_show (preview);
g_signal_connect (chooser, "update-preview",
G_CALLBACK (update_chooser_preview), panel);
folder = g_get_user_special_dir (G_USER_DIRECTORY_PICTURES);
if (folder)
gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (chooser),
folder);
g_signal_connect (chooser, "response",
G_CALLBACK (file_chooser_response), panel);
gtk_window_present (GTK_WINDOW (chooser));
}
static void
remove_button_clicked (GtkButton *button,
CcBackgroundPanel *panel)
{
CcBackgroundItem *item;
GtkListStore *store;
GtkTreePath *path;
CcBackgroundPanelPrivate *priv;
priv = panel->priv;
item = get_selected_item (panel);
if (item == NULL)
g_assert_not_reached ();
bg_pictures_source_remove (panel->priv->pictures_source, item);
g_object_unref (item);
/* Are there any items left in the pictures tree store? */
store = bg_source_get_liststore (BG_SOURCE (panel->priv->pictures_source));
if (gtk_tree_model_iter_n_children (GTK_TREE_MODEL (store), NULL) == 0)
gtk_combo_box_set_active (GTK_COMBO_BOX (WID ("sources-combobox")), SOURCE_WALLPAPERS);
path = gtk_tree_path_new_from_string ("0");
gtk_icon_view_select_path (GTK_ICON_VIEW (WID ("backgrounds-iconview")), path);
gtk_tree_path_free (path);
}
static void
load_current_bg (CcBackgroundPanel *self)
{
CcBackgroundPanelPrivate *priv;
CcBackgroundItem *saved, *configured;
gchar *uri, *pcolor, *scolor;
priv = self->priv;
/* Load the saved configuration */
uri = get_save_path ();
saved = cc_background_xml_get_item (uri);
g_free (uri);
/* initalise the current background information from settings */
uri = g_settings_get_string (priv->settings, WP_URI_KEY);
if (uri && *uri == '\0')
{
g_free (uri);
uri = NULL;
}
else
{
GFile *file;
file = g_file_new_for_commandline_arg (uri);
g_object_unref (file);
}
configured = cc_background_item_new (uri);
g_free (uri);
pcolor = g_settings_get_string (priv->settings, WP_PCOLOR_KEY);
scolor = g_settings_get_string (priv->settings, WP_SCOLOR_KEY);
g_object_set (G_OBJECT (configured),
"name", _("Current background"),
"placement", g_settings_get_enum (priv->settings, WP_OPTIONS_KEY),
"shading", g_settings_get_enum (priv->settings, WP_SHADING_KEY),
"primary-color", pcolor,
"secondary-color", scolor,
NULL);
g_free (pcolor);
g_free (scolor);
if (saved != NULL && cc_background_item_compare (saved, configured))
{
CcBackgroundItemFlags flags;
flags = cc_background_item_get_flags (saved);
/* Special case for colours */
if (cc_background_item_get_placement (saved) == G_DESKTOP_BACKGROUND_STYLE_NONE)
flags &=~ (CC_BACKGROUND_ITEM_HAS_PCOLOR | CC_BACKGROUND_ITEM_HAS_SCOLOR);
g_object_set (G_OBJECT (configured),
"name", cc_background_item_get_name (saved),
"flags", flags,
"source-url", cc_background_item_get_source_url (saved),
"source-xml", cc_background_item_get_source_xml (saved),
NULL);
}
if (saved != NULL)
g_object_unref (saved);
priv->current_background = configured;
cc_background_item_load (priv->current_background, NULL);
}
static void
scrolled_realize_cb (GtkWidget *scrolled,
CcBackgroundPanel *self)
{
/* FIXME, hack for https://bugzilla.gnome.org/show_bug.cgi?id=645649 */
GdkScreen *screen;
GdkRectangle rect;
int monitor;
screen = gtk_widget_get_screen (scrolled);
monitor = gdk_screen_get_monitor_at_window (screen, gtk_widget_get_window (scrolled));
gdk_screen_get_monitor_geometry (screen, monitor, &rect);
if (rect.height <= 768)
g_object_set (G_OBJECT (scrolled), "height-request", 280, NULL);
}
static void
cc_background_panel_init (CcBackgroundPanel *self)
{
CcBackgroundPanelPrivate *priv;
gchar *objects[] = { "style-liststore",
"sources-liststore", "background-panel", "sizegroup", NULL };
GError *err = NULL;
GtkWidget *widget;
GtkListStore *store;
GtkStyleContext *context;
priv = self->priv = BACKGROUND_PANEL_PRIVATE (self);
priv->builder = gtk_builder_new ();
gtk_builder_add_objects_from_file (priv->builder,
DATADIR"/background.ui",
objects, &err);
if (err)
{
g_warning ("Could not load ui: %s", err->message);
g_error_free (err);
return;
}
/* See shell_notify_cb for details */
g_signal_connect (WID ("scrolledwindow1"), "realize",
G_CALLBACK (scrolled_realize_cb), self);
priv->settings = g_settings_new (WP_PATH_ID);
g_settings_delay (priv->settings);
store = (GtkListStore*) gtk_builder_get_object (priv->builder,
"sources-liststore");
priv->wallpapers_source = bg_wallpapers_source_new ();
gtk_list_store_insert_with_values (store, NULL, G_MAXINT,
COL_SOURCE_NAME, _("Wallpapers"),
COL_SOURCE_TYPE, SOURCE_WALLPAPERS,
COL_SOURCE, priv->wallpapers_source,
-1);
priv->pictures_source = bg_pictures_source_new ();
gtk_list_store_insert_with_values (store, NULL, G_MAXINT,
COL_SOURCE_NAME, _("Pictures Folder"),
COL_SOURCE_TYPE, SOURCE_PICTURES,
COL_SOURCE, priv->pictures_source,
-1);
priv->colors_source = bg_colors_source_new ();
gtk_list_store_insert_with_values (store, NULL, G_MAXINT,
COL_SOURCE_NAME, _("Colors & Gradients"),
COL_SOURCE_TYPE, SOURCE_COLORS,
COL_SOURCE, priv->colors_source,
-1);
#ifdef HAVE_LIBSOCIALWEB
priv->flickr_source = bg_flickr_source_new ();
gtk_list_store_insert_with_values (store, NULL, G_MAXINT,
COL_SOURCE_NAME, _("Flickr"),
COL_SOURCE_TYPE, SOURCE_FLICKR,
COL_SOURCE, priv->flickr_source,
-1);
#endif
/* add the top level widget */
widget = WID ("background-panel");
gtk_container_add (GTK_CONTAINER (self), widget);
gtk_widget_show_all (GTK_WIDGET (self));
/* connect to source change signal */
widget = WID ("sources-combobox");
g_signal_connect (widget, "changed", G_CALLBACK (source_changed_cb), priv);
/* select first item */
gtk_combo_box_set_active (GTK_COMBO_BOX (widget), 0);
/* connect to the background iconview change signal */
widget = WID ("backgrounds-iconview");
g_signal_connect (widget, "selection-changed",
G_CALLBACK (backgrounds_changed_cb),
self);
/* Join treeview and buttons */
widget = WID ("scrolledwindow1");
context = gtk_widget_get_style_context (widget);
gtk_style_context_set_junction_sides (context, GTK_JUNCTION_BOTTOM);
widget = WID ("toolbar1");
context = gtk_widget_get_style_context (widget);
gtk_style_context_set_junction_sides (context, GTK_JUNCTION_TOP);
g_signal_connect (WID ("add_button"), "clicked",
G_CALLBACK (add_button_clicked), self);
g_signal_connect (WID ("remove_button"), "clicked",
G_CALLBACK (remove_button_clicked), self);
/* setup preview area */
gtk_label_set_ellipsize (GTK_LABEL (WID ("background-label")), PANGO_ELLIPSIZE_END);
widget = WID ("preview-area");
g_signal_connect (widget, "draw", G_CALLBACK (preview_draw_cb),
self);
priv->display_base = gdk_pixbuf_new_from_file (DATADIR "/display-base.png",
NULL);
priv->display_overlay = gdk_pixbuf_new_from_file (DATADIR
"/display-overlay.png",
NULL);
g_signal_connect (WID ("style-combobox"), "changed",
G_CALLBACK (style_changed_cb), self);
g_signal_connect (WID ("style-pcolor"), "color-set",
G_CALLBACK (color_changed_cb), self);
g_signal_connect (WID ("style-scolor"), "color-set",
G_CALLBACK (color_changed_cb), self);
priv->copy_cancellable = g_cancellable_new ();
priv->thumb_factory = gnome_desktop_thumbnail_factory_new (GNOME_DESKTOP_THUMBNAIL_SIZE_NORMAL);
load_current_bg (self);
update_preview (priv, NULL);
/* Setup the edit box with our current settings */
source_update_edit_box (priv, TRUE);
}
void
cc_background_panel_register (GIOModule *module)
{
cc_background_panel_register_type (G_TYPE_MODULE (module));
g_io_extension_point_implement (CC_SHELL_PANEL_EXTENSION_POINT,
CC_TYPE_BACKGROUND_PANEL,
"background", 0);
}
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