nsresult
nsIconChannel::Init(nsIURI* aURI)
{
nsCOMPtr<nsIMozIconURI> iconURI = do_QueryInterface(aURI);
NS_ASSERTION(iconURI, "URI is not an nsIMozIconURI");
nsCAutoString stockIcon;
iconURI->GetStockIcon(stockIcon);
if (stockIcon.IsEmpty()) {
#ifdef MOZ_ENABLE_GNOMEUI
return InitWithGnome(iconURI);
#else
return NS_ERROR_NOT_AVAILABLE;
#endif
}
nsCAutoString iconSizeString;
iconURI->GetIconSize(iconSizeString);
nsCAutoString iconStateString;
iconURI->GetIconState(iconStateString);
GtkIconSize icon_size = moz_gtk_icon_size(iconSizeString.get());
ensure_stock_image_widget();
gboolean sensitive = strcmp(iconStateString.get(), "disabled");
gtk_widget_set_sensitive (gStockImageWidget, sensitive);
GdkPixbuf *icon = gtk_widget_render_icon(gStockImageWidget, stockIcon.get(),
icon_size, NULL);
#if GTK_CHECK_VERSION(2,4,0)
if (!icon) {
ensure_icon_factory();
GtkIconSet *icon_set = gtk_icon_set_new();
GtkIconSource *icon_source = gtk_icon_source_new();
gtk_icon_source_set_icon_name(icon_source, stockIcon.get());
gtk_icon_set_add_source(icon_set, icon_source);
gtk_icon_factory_add(gIconFactory, stockIcon.get(), icon_set);
gtk_icon_set_unref(icon_set);
gtk_icon_source_free(icon_source);
icon = gtk_widget_render_icon(gStockImageWidget, stockIcon.get(),
icon_size, NULL);
}
#endif
if (!icon)
return NS_ERROR_NOT_AVAILABLE;
nsresult rv = moz_gdk_pixbuf_to_channel(icon, iconURI,
getter_AddRefs(mRealChannel));
g_object_unref(icon);
return rv;
}
nsresult
nsIconChannel::Init(nsIURI* aURI)
{
nsCOMPtr<nsIMozIconURI> iconURI = do_QueryInterface(aURI);
NS_ASSERTION(iconURI, "URI is not an nsIMozIconURI");
nsAutoCString stockIcon;
iconURI->GetStockIcon(stockIcon);
if (stockIcon.IsEmpty()) {
#ifdef MOZ_ENABLE_GNOMEUI
return InitWithGnome(iconURI);
#else
#ifdef MOZ_ENABLE_GIO
return InitWithGIO(iconURI);
#else
return NS_ERROR_NOT_AVAILABLE;
#endif
#endif
}
// Search for stockIcon
nsAutoCString iconSizeString;
iconURI->GetIconSize(iconSizeString);
nsAutoCString iconStateString;
iconURI->GetIconState(iconStateString);
GtkIconSize icon_size = moz_gtk_icon_size(iconSizeString.get());
GtkStateType state = iconStateString.EqualsLiteral("disabled") ?
GTK_STATE_INSENSITIVE : GTK_STATE_NORMAL;
// First lookup the icon by stock id and text direction.
GtkTextDirection direction = GTK_TEXT_DIR_NONE;
if (StringEndsWith(stockIcon, NS_LITERAL_CSTRING("-ltr"))) {
direction = GTK_TEXT_DIR_LTR;
} else if (StringEndsWith(stockIcon, NS_LITERAL_CSTRING("-rtl"))) {
direction = GTK_TEXT_DIR_RTL;
}
bool forceDirection = direction != GTK_TEXT_DIR_NONE;
nsAutoCString stockID;
bool useIconName = false;
if (!forceDirection) {
direction = gtk_widget_get_default_direction();
stockID = stockIcon;
} else {
// GTK versions < 2.22 use icon names from concatenating stock id with
// -(rtl|ltr), which is how the moz-icon stock name is interpreted here.
stockID = Substring(stockIcon, 0, stockIcon.Length() - 4);
// However, if we lookup bidi icons by the stock name, then GTK versions
// >= 2.22 will use a bidi lookup convention that most icon themes do not
// yet follow. Therefore, we first check to see if the theme supports the
// old icon name as this will have bidi support (if found).
GtkIconTheme *icon_theme = gtk_icon_theme_get_default();
// Micking what gtk_icon_set_render_icon does with sizes, though it's not
// critical as icons will be scaled to suit size. It just means we follow
// the same pathes and so share caches.
gint width, height;
if (gtk_icon_size_lookup(icon_size, &width, &height)) {
gint size = NS_MIN(width, height);
// We use gtk_icon_theme_lookup_icon() without
// GTK_ICON_LOOKUP_USE_BUILTIN instead of gtk_icon_theme_has_icon() so
// we don't pick up fallback icons added by distributions for backward
// compatibility.
GtkIconInfo *icon =
gtk_icon_theme_lookup_icon(icon_theme, stockIcon.get(),
size, (GtkIconLookupFlags)0);
if (icon) {
useIconName = true;
gtk_icon_info_free(icon);
}
}
}
ensure_stock_image_widget();
GtkStyle *style = gtk_widget_get_style(gStockImageWidget);
GtkIconSet *icon_set = NULL;
if (!useIconName) {
icon_set = gtk_style_lookup_icon_set(style, stockID.get());
}
if (!icon_set) {
// Either we have choosen icon-name lookup for a bidi icon, or stockIcon is
// not a stock id so we assume it is an icon name.
useIconName = true;
// Creating a GtkIconSet is a convenient way to allow the style to
// render the icon, possibly with variations suitable for insensitive
// states.
icon_set = gtk_icon_set_new();
GtkIconSource *icon_source = gtk_icon_source_new();
gtk_icon_source_set_icon_name(icon_source, stockIcon.get());
gtk_icon_set_add_source(icon_set, icon_source);
gtk_icon_source_free(icon_source);
}
GdkPixbuf *icon =
gtk_icon_set_render_icon (icon_set, style, direction, state,
icon_size, gStockImageWidget, NULL);
if (useIconName) {
gtk_icon_set_unref(icon_set);
}
// According to documentation, gtk_icon_set_render_icon() never returns
// NULL, but it does return NULL when we have the problem reported here:
// https://bugzilla.gnome.org/show_bug.cgi?id=629878#c13
if (!icon)
return NS_ERROR_NOT_AVAILABLE;
nsresult rv = moz_gdk_pixbuf_to_channel(icon, iconURI,
getter_AddRefs(mRealChannel));
g_object_unref(icon);
return rv;
}