diff options
Diffstat (limited to 'libempathy-gtk/ephy-spinner.c')
| -rw-r--r-- | libempathy-gtk/ephy-spinner.c | 977 |
1 files changed, 0 insertions, 977 deletions
diff --git a/libempathy-gtk/ephy-spinner.c b/libempathy-gtk/ephy-spinner.c deleted file mode 100644 index a8f371df3..000000000 --- a/libempathy-gtk/ephy-spinner.c +++ /dev/null @@ -1,977 +0,0 @@ -/* - * Copyright © 2000 Eazel, Inc. - * Copyright © 2002-2004 Marco Pesenti Gritti - * Copyright © 2004, 2006 Christian Persch - * - * Nautilus 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. - * - * Nautilus 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: Andy Hertzfeld <andy@eazel.com> - * - * Ephy port by Marco Pesenti Gritti <marco@it.gnome.org> - * - * $Id: ephy-spinner.c 2114 2006-12-25 12:15:00Z mr $ - */ - -#include "config.h" - -#include "ephy-spinner.h" - -/* #include "ephy-debug.h" */ -#define LOG(msg, args...) -#define START_PROFILER(name) -#define STOP_PROFILER(name) - -#include <gdk-pixbuf/gdk-pixbuf.h> -#include <gtk/gtkicontheme.h> -#include <gtk/gtkiconfactory.h> -#include <gtk/gtksettings.h> - -/* Spinner cache implementation */ - -#define EPHY_TYPE_SPINNER_CACHE (ephy_spinner_cache_get_type()) -#define EPHY_SPINNER_CACHE(object) (G_TYPE_CHECK_INSTANCE_CAST((object), EPHY_TYPE_SPINNER_CACHE, EphySpinnerCache)) -#define EPHY_SPINNER_CACHE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), EPHY_TYPE_SPINNER_CACHE, EphySpinnerCacheClass)) -#define EPHY_IS_SPINNER_CACHE(object) (G_TYPE_CHECK_INSTANCE_TYPE((object), EPHY_TYPE_SPINNER_CACHE)) -#define EPHY_IS_SPINNER_CACHE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), EPHY_TYPE_SPINNER_CACHE)) -#define EPHY_SPINNER_CACHE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), EPHY_TYPE_SPINNER_CACHE, EphySpinnerCacheClass)) - -typedef struct _EphySpinnerCache EphySpinnerCache; -typedef struct _EphySpinnerCacheClass EphySpinnerCacheClass; -typedef struct _EphySpinnerCachePrivate EphySpinnerCachePrivate; - -struct _EphySpinnerCacheClass -{ - GObjectClass parent_class; -}; - -struct _EphySpinnerCache -{ - GObject parent_object; - - /*< private >*/ - EphySpinnerCachePrivate *priv; -}; - -#define EPHY_SPINNER_CACHE_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_SPINNER_CACHE, EphySpinnerCachePrivate)) - -struct _EphySpinnerCachePrivate -{ - /* Hash table of GdkScreen -> EphySpinnerCacheData */ - GHashTable *hash; -}; - -typedef struct -{ - guint ref_count; - GtkIconSize size; - int width; - int height; - GdkPixbuf **animation_pixbufs; - guint n_animation_pixbufs; -} EphySpinnerImages; - -#define LAST_ICON_SIZE GTK_ICON_SIZE_DIALOG + 1 -#define SPINNER_ICON_NAME "process-working" -#define SPINNER_FALLBACK_ICON_NAME "gnome-spinner" -#define EPHY_SPINNER_IMAGES_INVALID ((EphySpinnerImages *) 0x1) - -typedef struct -{ - GdkScreen *screen; - GtkIconTheme *icon_theme; - EphySpinnerImages *images[LAST_ICON_SIZE]; -} EphySpinnerCacheData; - -static void ephy_spinner_cache_class_init (EphySpinnerCacheClass *klass); -static void ephy_spinner_cache_init (EphySpinnerCache *cache); - -static GObjectClass *ephy_spinner_cache_parent_class; - -static GType -ephy_spinner_cache_get_type (void) -{ - static GType type = 0; - - if (G_UNLIKELY (type == 0)) - { - const GTypeInfo our_info = - { - sizeof (EphySpinnerCacheClass), - NULL, - NULL, - (GClassInitFunc) ephy_spinner_cache_class_init, - NULL, - NULL, - sizeof (EphySpinnerCache), - 0, - (GInstanceInitFunc) ephy_spinner_cache_init - }; - - type = g_type_register_static (G_TYPE_OBJECT, - "EphySpinnerCache", - &our_info, 0); - } - - return type; -} - -static EphySpinnerImages * -ephy_spinner_images_ref (EphySpinnerImages *images) -{ - g_return_val_if_fail (images != NULL, NULL); - - images->ref_count++; - - return images; -} - -static void -ephy_spinner_images_unref (EphySpinnerImages *images) -{ - g_return_if_fail (images != NULL); - - images->ref_count--; - if (images->ref_count == 0) - { - guint i; - - LOG ("Freeing spinner images %p for size %d", images, images->size); - - for (i = 0; i < images->n_animation_pixbufs; ++i) - { - g_object_unref (images->animation_pixbufs[i]); - } - g_free (images->animation_pixbufs); - - g_free (images); - } -} - -static void -ephy_spinner_cache_data_unload (EphySpinnerCacheData *data) -{ - GtkIconSize size; - EphySpinnerImages *images; - - g_return_if_fail (data != NULL); - - LOG ("EphySpinnerDataCache unload for screen %p", data->screen); - - for (size = GTK_ICON_SIZE_INVALID; size < LAST_ICON_SIZE; ++size) - { - images = data->images[size]; - data->images[size] = NULL; - - if (images != NULL && images != EPHY_SPINNER_IMAGES_INVALID) - { - ephy_spinner_images_unref (images); - } - } -} - -static GdkPixbuf * -extract_frame (GdkPixbuf *grid_pixbuf, - int x, - int y, - int size) -{ - GdkPixbuf *pixbuf; - - if (x + size > gdk_pixbuf_get_width (grid_pixbuf) || - y + size > gdk_pixbuf_get_height (grid_pixbuf)) - { - return NULL; - } - - pixbuf = gdk_pixbuf_new_subpixbuf (grid_pixbuf, - x, y, - size, size); - g_return_val_if_fail (pixbuf != NULL, NULL); - - return pixbuf; -} - -static GdkPixbuf * -scale_to_size (GdkPixbuf *pixbuf, - int dw, - int dh) -{ - GdkPixbuf *result; - int pw, ph; - - g_return_val_if_fail (pixbuf != NULL, NULL); - - pw = gdk_pixbuf_get_width (pixbuf); - ph = gdk_pixbuf_get_height (pixbuf); - - if (pw != dw || ph != dh) - { - result = gdk_pixbuf_scale_simple (pixbuf, dw, dh, - GDK_INTERP_BILINEAR); - g_object_unref (pixbuf); - return result; - } - - return pixbuf; -} - -static EphySpinnerImages * -ephy_spinner_images_load (GdkScreen *screen, - GtkIconTheme *icon_theme, - GtkIconSize icon_size) -{ - EphySpinnerImages *images; - GdkPixbuf *icon_pixbuf, *pixbuf; - GtkIconInfo *icon_info = NULL; - int grid_width, grid_height, x, y, requested_size, size, isw, ish, n; - const char *icon; - GSList *list = NULL, *l; - - LOG ("EphySpinnerCacheData loading for screen %p at size %d", screen, icon_size); - - START_PROFILER ("loading spinner animation") - - if (!gtk_icon_size_lookup_for_settings (gtk_settings_get_for_screen (screen), - icon_size, &isw, &ish)) goto loser; - - requested_size = MAX (ish, isw); - - /* Load the animation. The 'rest icon' is the 0th frame */ - icon_info = gtk_icon_theme_lookup_icon (icon_theme, - SPINNER_ICON_NAME, - requested_size, 0); - if (icon_info == NULL) - { - g_warning ("Throbber animation not found"); - - /* If the icon naming spec compliant name wasn't found, try the old name */ - icon_info = gtk_icon_theme_lookup_icon (icon_theme, - SPINNER_FALLBACK_ICON_NAME, - requested_size, 0); - if (icon_info == NULL) - { - g_warning ("Throbber fallback animation not found either"); - goto loser; - } - } - g_assert (icon_info != NULL); - - size = gtk_icon_info_get_base_size (icon_info); - icon = gtk_icon_info_get_filename (icon_info); - if (icon == NULL) goto loser; - - icon_pixbuf = gdk_pixbuf_new_from_file (icon, NULL); - gtk_icon_info_free (icon_info); - icon_info = NULL; - - if (icon_pixbuf == NULL) - { - g_warning ("Could not load the spinner file"); - goto loser; - } - - grid_width = gdk_pixbuf_get_width (icon_pixbuf); - grid_height = gdk_pixbuf_get_height (icon_pixbuf); - - n = 0; - for (y = 0; y < grid_height; y += size) - { - for (x = 0; x < grid_width ; x += size) - { - pixbuf = extract_frame (icon_pixbuf, x, y, size); - - if (pixbuf) - { - list = g_slist_prepend (list, pixbuf); - ++n; - } - else - { - g_warning ("Cannot extract frame (%d, %d) from the grid\n", x, y); - } - } - } - - g_object_unref (icon_pixbuf); - - if (list == NULL) goto loser; - g_assert (n > 0); - - if (size > requested_size) - { - for (l = list; l != NULL; l = l->next) - { - l->data = scale_to_size (l->data, isw, ish); - } - } - - /* Now we've successfully got all the data */ - images = g_new (EphySpinnerImages, 1); - images->ref_count = 1; - - images->size = icon_size; - images->width = images->height = requested_size; - - images->n_animation_pixbufs = n; - images->animation_pixbufs = g_new (GdkPixbuf *, n); - - for (l = list; l != NULL; l = l->next) - { - g_assert (l->data != NULL); - images->animation_pixbufs[--n] = l->data; - } - g_assert (n == 0); - - g_slist_free (list); - - STOP_PROFILER ("loading spinner animation") - - return images; - -loser: - if (icon_info) - { - gtk_icon_info_free (icon_info); - } - g_slist_foreach (list, (GFunc) g_object_unref, NULL); - - STOP_PROFILER ("loading spinner animation") - - return NULL; -} - -static EphySpinnerCacheData * -ephy_spinner_cache_data_new (GdkScreen *screen) -{ - EphySpinnerCacheData *data; - - data = g_new0 (EphySpinnerCacheData, 1); - - data->screen = screen; - data->icon_theme = gtk_icon_theme_get_for_screen (screen); - g_signal_connect_swapped (data->icon_theme, "changed", - G_CALLBACK (ephy_spinner_cache_data_unload), - data); - - return data; -} - -static void -ephy_spinner_cache_data_free (EphySpinnerCacheData *data) -{ - g_return_if_fail (data != NULL); - g_return_if_fail (data->icon_theme != NULL); - - g_signal_handlers_disconnect_by_func - (data->icon_theme, - G_CALLBACK (ephy_spinner_cache_data_unload), data); - - ephy_spinner_cache_data_unload (data); - - g_free (data); -} - -static EphySpinnerImages * -ephy_spinner_cache_get_images (EphySpinnerCache *cache, - GdkScreen *screen, - GtkIconSize icon_size) -{ - EphySpinnerCachePrivate *priv = cache->priv; - EphySpinnerCacheData *data; - EphySpinnerImages *images; - - LOG ("Getting animation images for screen %p at size %d", screen, icon_size); - - g_return_val_if_fail (icon_size >= 0 && icon_size < LAST_ICON_SIZE, NULL); - - /* Backward compat: "invalid" meant "native" size which doesn't exist anymore */ - if (icon_size == GTK_ICON_SIZE_INVALID) - { - icon_size = GTK_ICON_SIZE_DIALOG; - } - - data = g_hash_table_lookup (priv->hash, screen); - if (data == NULL) - { - data = ephy_spinner_cache_data_new (screen); - /* FIXME: think about what happens when the screen's display is closed later on */ - g_hash_table_insert (priv->hash, screen, data); - } - - images = data->images[icon_size]; - if (images == EPHY_SPINNER_IMAGES_INVALID) - { - /* Load failed, but don't try endlessly again! */ - return NULL; - } - - if (images != NULL) - { - /* Return cached data */ - return ephy_spinner_images_ref (images); - } - - images = ephy_spinner_images_load (screen, data->icon_theme, icon_size); - - if (images == NULL) - { - /* Mark as failed-to-load */ - data->images[icon_size] = EPHY_SPINNER_IMAGES_INVALID; - - return NULL; - } - - data->images[icon_size] = images; - - return ephy_spinner_images_ref (images); -} - -static void -ephy_spinner_cache_init (EphySpinnerCache *cache) -{ - EphySpinnerCachePrivate *priv; - - priv = cache->priv = EPHY_SPINNER_CACHE_GET_PRIVATE (cache); - - LOG ("EphySpinnerCache initialising"); - - priv->hash = g_hash_table_new_full (g_direct_hash, g_direct_equal, - NULL, - (GDestroyNotify) ephy_spinner_cache_data_free); -} - -static void -ephy_spinner_cache_finalize (GObject *object) -{ - EphySpinnerCache *cache = EPHY_SPINNER_CACHE (object); - EphySpinnerCachePrivate *priv = cache->priv; - - g_hash_table_destroy (priv->hash); - - LOG ("EphySpinnerCache finalised"); - - G_OBJECT_CLASS (ephy_spinner_cache_parent_class)->finalize (object); -} - -static void -ephy_spinner_cache_class_init (EphySpinnerCacheClass *klass) -{ - GObjectClass *object_class = G_OBJECT_CLASS (klass); - - ephy_spinner_cache_parent_class = g_type_class_peek_parent (klass); - - object_class->finalize = ephy_spinner_cache_finalize; - - g_type_class_add_private (object_class, sizeof (EphySpinnerCachePrivate)); -} - -static EphySpinnerCache *spinner_cache = NULL; - -static EphySpinnerCache * -ephy_spinner_cache_ref (void) -{ - if (spinner_cache == NULL) - { - EphySpinnerCache **cache_ptr; - - spinner_cache = g_object_new (EPHY_TYPE_SPINNER_CACHE, NULL); - cache_ptr = &spinner_cache; - g_object_add_weak_pointer (G_OBJECT (spinner_cache), - (gpointer *) cache_ptr); - - return spinner_cache; - } - - return g_object_ref (spinner_cache); -} - -/* Spinner implementation */ - -#define SPINNER_TIMEOUT 125 /* ms */ - -#define EPHY_SPINNER_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_SPINNER, EphySpinnerDetails)) - -struct _EphySpinnerDetails -{ - GtkIconTheme *icon_theme; - EphySpinnerCache *cache; - GtkIconSize size; - EphySpinnerImages *images; - guint current_image; - guint timeout; - guint timer_task; - guint spinning : 1; - guint need_load : 1; -}; - -static void ephy_spinner_class_init (EphySpinnerClass *class); -static void ephy_spinner_init (EphySpinner *spinner); - -static GObjectClass *parent_class; - -GType -ephy_spinner_get_type (void) -{ - static GType type = 0; - - if (G_UNLIKELY (type == 0)) - { - const GTypeInfo our_info = - { - sizeof (EphySpinnerClass), - NULL, /* base_init */ - NULL, /* base_finalize */ - (GClassInitFunc) ephy_spinner_class_init, - NULL, - NULL, /* class_data */ - sizeof (EphySpinner), - 0, /* n_preallocs */ - (GInstanceInitFunc) ephy_spinner_init - }; - - type = g_type_register_static (GTK_TYPE_WIDGET, - "EphySpinner", - &our_info, 0); - } - - return type; -} - -static gboolean -ephy_spinner_load_images (EphySpinner *spinner) -{ - EphySpinnerDetails *details = spinner->details; - - if (details->need_load) - { - START_PROFILER ("ephy_spinner_load_images") - - details->images = - ephy_spinner_cache_get_images - (details->cache, - gtk_widget_get_screen (GTK_WIDGET (spinner)), - details->size); - - STOP_PROFILER ("ephy_spinner_load_images") - - details->current_image = 0; /* 'rest' icon */ - details->need_load = FALSE; - } - - return details->images != NULL; -} - -static void -ephy_spinner_unload_images (EphySpinner *spinner) -{ - EphySpinnerDetails *details = spinner->details; - - if (details->images != NULL) - { - ephy_spinner_images_unref (details->images); - details->images = NULL; - } - - details->current_image = 0; - details->need_load = TRUE; -} - -static void -icon_theme_changed_cb (GtkIconTheme *icon_theme, - EphySpinner *spinner) -{ - ephy_spinner_unload_images (spinner); - gtk_widget_queue_resize (GTK_WIDGET (spinner)); -} - -static void -ephy_spinner_init (EphySpinner *spinner) -{ - EphySpinnerDetails *details; - - details = spinner->details = EPHY_SPINNER_GET_PRIVATE (spinner); - - GTK_WIDGET_SET_FLAGS (GTK_WIDGET (spinner), GTK_NO_WINDOW); - - details->cache = ephy_spinner_cache_ref (); - details->size = GTK_ICON_SIZE_DIALOG; - details->spinning = FALSE; - details->timeout = SPINNER_TIMEOUT; - details->need_load = TRUE; -} - -static int -ephy_spinner_expose (GtkWidget *widget, - GdkEventExpose *event) -{ - EphySpinner *spinner = EPHY_SPINNER (widget); - EphySpinnerDetails *details = spinner->details; - EphySpinnerImages *images; - GdkPixbuf *pixbuf; - GdkGC *gc; - int x_offset, y_offset, width, height; - GdkRectangle pix_area, dest; - - if (!GTK_WIDGET_DRAWABLE (spinner)) - { - return FALSE; - } - - if (details->need_load && - !ephy_spinner_load_images (spinner)) - { - return FALSE; - } - - images = details->images; - if (images == NULL) - { - return FALSE; - } - - /* Otherwise |images| will be NULL anyway */ - g_assert (images->n_animation_pixbufs > 0); - - g_assert (details->current_image >= 0 && - details->current_image < images->n_animation_pixbufs); - - pixbuf = images->animation_pixbufs[details->current_image]; - - g_assert (pixbuf != NULL); - - width = gdk_pixbuf_get_width (pixbuf); - height = gdk_pixbuf_get_height (pixbuf); - - /* Compute the offsets for the image centered on our allocation */ - x_offset = (widget->allocation.width - width) / 2; - y_offset = (widget->allocation.height - height) / 2; - - pix_area.x = x_offset + widget->allocation.x; - pix_area.y = y_offset + widget->allocation.y; - pix_area.width = width; - pix_area.height = height; - - if (!gdk_rectangle_intersect (&event->area, &pix_area, &dest)) - { - return FALSE; - } - - gc = gdk_gc_new (widget->window); - gdk_draw_pixbuf (widget->window, gc, pixbuf, - dest.x - x_offset - widget->allocation.x, - dest.y - y_offset - widget->allocation.y, - dest.x, dest.y, - dest.width, dest.height, - GDK_RGB_DITHER_MAX, 0, 0); - g_object_unref (gc); - - return FALSE; -} - -static gboolean -bump_spinner_frame_cb (EphySpinner *spinner) -{ - EphySpinnerDetails *details = spinner->details; - - /* This can happen when we've unloaded the images on a theme - * change, but haven't been in the queued size request yet. - * Just skip this update. - */ - if (details->images == NULL) return TRUE; - - details->current_image++; - if (details->current_image >= details->images->n_animation_pixbufs) - { - /* the 0th frame is the 'rest' icon */ - details->current_image = MIN (1, details->images->n_animation_pixbufs); - } - - gtk_widget_queue_draw (GTK_WIDGET (spinner)); - - /* run again */ - return TRUE; -} - -/** - * ephy_spinner_start: - * @spinner: a #EphySpinner - * - * Start the spinner animation. - **/ -void -ephy_spinner_start (EphySpinner *spinner) -{ - EphySpinnerDetails *details = spinner->details; - - details->spinning = TRUE; - - if (GTK_WIDGET_MAPPED (GTK_WIDGET (spinner)) && - details->timer_task == 0 && - ephy_spinner_load_images (spinner)) - { - /* the 0th frame is the 'rest' icon */ - details->current_image = MIN (1, details->images->n_animation_pixbufs); - - details->timer_task = - g_timeout_add_full (G_PRIORITY_LOW, - details->timeout, - (GSourceFunc) bump_spinner_frame_cb, - spinner, - NULL); - } -} - -static void -ephy_spinner_remove_update_callback (EphySpinner *spinner) -{ - EphySpinnerDetails *details = spinner->details; - - if (details->timer_task != 0) - { - g_source_remove (details->timer_task); - details->timer_task = 0; - } -} - -/** - * ephy_spinner_stop: - * @spinner: a #EphySpinner - * - * Stop the spinner animation. - **/ -void -ephy_spinner_stop (EphySpinner *spinner) -{ - EphySpinnerDetails *details = spinner->details; - - details->spinning = FALSE; - details->current_image = 0; - - if (details->timer_task != 0) - { - ephy_spinner_remove_update_callback (spinner); - - if (GTK_WIDGET_MAPPED (GTK_WIDGET (spinner))) - { - gtk_widget_queue_draw (GTK_WIDGET (spinner)); - } - } -} - -/* - * ephy_spinner_set_size: - * @spinner: a #EphySpinner - * @size: the size of type %GtkIconSize - * - * Set the size of the spinner. - **/ -void -ephy_spinner_set_size (EphySpinner *spinner, - GtkIconSize size) -{ - if (size == GTK_ICON_SIZE_INVALID) - { - size = GTK_ICON_SIZE_DIALOG; - } - - if (size != spinner->details->size) - { - ephy_spinner_unload_images (spinner); - - spinner->details->size = size; - - gtk_widget_queue_resize (GTK_WIDGET (spinner)); - } -} - -#if 0 -/* - * ephy_spinner_set_timeout: - * @spinner: a #EphySpinner - * @timeout: time delay between updates to the spinner. - * - * Sets the timeout delay for spinner updates. - **/ -void -ephy_spinner_set_timeout (EphySpinner *spinner, - guint timeout) -{ - EphySpinnerDetails *details = spinner->details; - - if (timeout != details->timeout) - { - ephy_spinner_stop (spinner); - - details->timeout = timeout; - - if (details->spinning) - { - ephy_spinner_start (spinner); - } - } -} -#endif - -static void -ephy_spinner_size_request (GtkWidget *widget, - GtkRequisition *requisition) -{ - EphySpinner *spinner = EPHY_SPINNER (widget); - EphySpinnerDetails *details = spinner->details; - - if ((details->need_load && - !ephy_spinner_load_images (spinner)) || - details->images == NULL) - { - requisition->width = requisition->height = 0; - gtk_icon_size_lookup_for_settings (gtk_widget_get_settings (widget), - details->size, - &requisition->width, - &requisition->height); - return; - } - - requisition->width = details->images->width; - requisition->height = details->images->height; - - /* FIXME fix this hack */ - /* allocate some extra margin so we don't butt up against toolbar edges */ - if (details->size != GTK_ICON_SIZE_MENU) - { - requisition->width += 2; - requisition->height += 2; - } -} - -static void -ephy_spinner_map (GtkWidget *widget) -{ - EphySpinner *spinner = EPHY_SPINNER (widget); - EphySpinnerDetails *details = spinner->details; - - GTK_WIDGET_CLASS (parent_class)->map (widget); - - if (details->spinning) - { - ephy_spinner_start (spinner); - } -} - -static void -ephy_spinner_unmap (GtkWidget *widget) -{ - EphySpinner *spinner = EPHY_SPINNER (widget); - - ephy_spinner_remove_update_callback (spinner); - - GTK_WIDGET_CLASS (parent_class)->unmap (widget); -} - -static void -ephy_spinner_dispose (GObject *object) -{ - EphySpinner *spinner = EPHY_SPINNER (object); - - g_signal_handlers_disconnect_by_func - (spinner->details->icon_theme, - G_CALLBACK (icon_theme_changed_cb), spinner); - - G_OBJECT_CLASS (parent_class)->dispose (object); -} - -static void -ephy_spinner_finalize (GObject *object) -{ - EphySpinner *spinner = EPHY_SPINNER (object); - - ephy_spinner_remove_update_callback (spinner); - ephy_spinner_unload_images (spinner); - - g_object_unref (spinner->details->cache); - - G_OBJECT_CLASS (parent_class)->finalize (object); -} - -static void -ephy_spinner_screen_changed (GtkWidget *widget, - GdkScreen *old_screen) -{ - EphySpinner *spinner = EPHY_SPINNER (widget); - EphySpinnerDetails *details = spinner->details; - GdkScreen *screen; - - if (GTK_WIDGET_CLASS (parent_class)->screen_changed) - { - GTK_WIDGET_CLASS (parent_class)->screen_changed (widget, old_screen); - } - - screen = gtk_widget_get_screen (widget); - - /* FIXME: this seems to be happening when then spinner is destroyed!? */ - if (old_screen == screen) return; - - /* We'll get mapped again on the new screen, but not unmapped from - * the old screen, so remove timeout here. - */ - ephy_spinner_remove_update_callback (spinner); - - ephy_spinner_unload_images (spinner); - - if (old_screen != NULL) - { - g_signal_handlers_disconnect_by_func - (gtk_icon_theme_get_for_screen (old_screen), - G_CALLBACK (icon_theme_changed_cb), spinner); - } - - details->icon_theme = gtk_icon_theme_get_for_screen (screen); - g_signal_connect (details->icon_theme, "changed", - G_CALLBACK (icon_theme_changed_cb), spinner); -} - -static void -ephy_spinner_class_init (EphySpinnerClass *class) -{ - GObjectClass *object_class = G_OBJECT_CLASS (class); - GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class); - - parent_class = g_type_class_peek_parent (class); - - object_class->dispose = ephy_spinner_dispose; - object_class->finalize = ephy_spinner_finalize; - - widget_class->expose_event = ephy_spinner_expose; - widget_class->size_request = ephy_spinner_size_request; - widget_class->map = ephy_spinner_map; - widget_class->unmap = ephy_spinner_unmap; - widget_class->screen_changed = ephy_spinner_screen_changed; - - g_type_class_add_private (object_class, sizeof (EphySpinnerDetails)); -} - -/* - * ephy_spinner_new: - * - * Create a new #EphySpinner. The spinner is a widget - * that gives the user feedback about network status with - * an animated image. - * - * Return Value: the spinner #GtkWidget - **/ -GtkWidget * -ephy_spinner_new (void) -{ - return GTK_WIDGET (g_object_new (EPHY_TYPE_SPINNER, NULL)); -} |