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;
}
nsresult
nsIconChannel::InitWithGIO(nsIMozIconURI *aIconURI)
{
GIcon *icon = NULL;
nsCOMPtr<nsIURL> fileURI;
// Read icon content
aIconURI->GetIconURL(getter_AddRefs(fileURI));
// Get icon for file specified by URI
if (fileURI) {
bool isFile;
nsAutoCString spec;
fileURI->GetAsciiSpec(spec);
if (NS_SUCCEEDED(fileURI->SchemeIs("file", &isFile)) && isFile) {
GFile *file = g_file_new_for_uri(spec.get());
GFileInfo *fileInfo = g_file_query_info(file,
G_FILE_ATTRIBUTE_STANDARD_ICON,
G_FILE_QUERY_INFO_NONE, NULL, NULL);
g_object_unref(file);
if (fileInfo) {
// icon from g_content_type_get_icon doesn't need unref
icon = g_file_info_get_icon(fileInfo);
if (icon)
g_object_ref(icon);
g_object_unref(fileInfo);
}
}
}
// Try to get icon by using MIME type
if (!icon) {
nsAutoCString type;
aIconURI->GetContentType(type);
// Try to get MIME type from file extension by using nsIMIMEService
if (type.IsEmpty()) {
nsCOMPtr<nsIMIMEService> ms(do_GetService("@mozilla.org/mime;1"));
if (ms) {
nsAutoCString fileExt;
aIconURI->GetFileExtension(fileExt);
ms->GetTypeFromExtension(fileExt, type);
}
}
char *ctype = NULL; // character representation of content type
if (!type.IsEmpty()) {
ctype = g_content_type_from_mime_type(type.get());
}
if (ctype) {
icon = g_content_type_get_icon(ctype);
g_free(ctype);
}
}
// Get default icon theme
GtkIconTheme *iconTheme = gtk_icon_theme_get_default();
GtkIconInfo *iconInfo = NULL;
// Get icon size
int32_t iconSize = GetIconSize(aIconURI);
if (icon) {
// Use icon and theme to get GtkIconInfo
iconInfo = gtk_icon_theme_lookup_by_gicon(iconTheme,
icon, iconSize,
(GtkIconLookupFlags)0);
g_object_unref(icon);
}
if (!iconInfo) {
// Mozilla's mimetype lookup failed. Try the "unknown" icon.
iconInfo = gtk_icon_theme_lookup_icon(iconTheme,
"unknown", iconSize,
(GtkIconLookupFlags)0);
if (!iconInfo) {
return NS_ERROR_NOT_AVAILABLE;
}
}
// Create a GdkPixbuf buffer containing icon and scale it
GdkPixbuf* buf = gtk_icon_info_load_icon(iconInfo, NULL);
gtk_icon_info_free(iconInfo);
if (!buf) {
return NS_ERROR_UNEXPECTED;
}
nsresult rv = ScaleIconBuf(&buf, iconSize);
NS_ENSURE_SUCCESS(rv, rv);
rv = moz_gdk_pixbuf_to_channel(buf, aIconURI,
getter_AddRefs(mRealChannel));
g_object_unref(buf);
return rv;
}
nsresult
nsIconChannel::InitWithGnome(nsIMozIconURI *aIconURI)
{
nsresult rv;
if (NS_FAILED(ensure_libgnomeui()) || NS_FAILED(ensure_libgnome()) || NS_FAILED(ensure_libgnomevfs())) {
gTriedToLoadGnomeLibs = true;
return NS_ERROR_NOT_AVAILABLE;
}
gTriedToLoadGnomeLibs = true;
if (!_gnome_program_get()) {
// Get the brandShortName from the string bundle to pass to GNOME
// as the application name. This may be used for things such as
// the title of grouped windows in the panel.
nsCOMPtr<nsIStringBundleService> bundleService =
do_GetService(NS_STRINGBUNDLE_CONTRACTID);
NS_ASSERTION(bundleService, "String bundle service must be present!");
nsCOMPtr<nsIStringBundle> bundle;
bundleService->CreateBundle("chrome://branding/locale/brand.properties",
getter_AddRefs(bundle));
nsAutoString appName;
if (bundle) {
bundle->GetStringFromName(NS_LITERAL_STRING("brandShortName").get(),
getter_Copies(appName));
} else {
NS_WARNING("brand.properties not present, using default application name");
appName.Assign(NS_LITERAL_STRING("Gecko"));
}
char* empty[] = { "" };
_gnome_init(NS_ConvertUTF16toUTF8(appName).get(), "1.0", 1, empty, NULL, 0, NULL);
}
uint32_t iconSize = GetIconSize(aIconURI);
nsAutoCString type;
aIconURI->GetContentType(type);
GnomeVFSFileInfo fileInfo = {0};
fileInfo.refcount = 1; // In case some GnomeVFS function addrefs and releases it
nsAutoCString spec;
nsCOMPtr<nsIURL> url;
rv = aIconURI->GetIconURL(getter_AddRefs(url));
if (url) {
url->GetAsciiSpec(spec);
// Only ask gnome-vfs for a GnomeVFSFileInfo for file: uris, to avoid a
// network request
bool isFile;
if (NS_SUCCEEDED(url->SchemeIs("file", &isFile)) && isFile) {
_gnome_vfs_get_file_info(spec.get(), &fileInfo, GNOME_VFS_FILE_INFO_DEFAULT);
}
else {
// The filename we get is UTF-8-compatible, which matches gnome expectations.
// See also: http://lists.gnome.org/archives/gnome-vfs-list/2004-March/msg00049.html
// "Whenever we can detect the charset used for the URI type we try to
// convert it to/from utf8 automatically inside gnome-vfs."
// I'll interpret that as "otherwise, this field is random junk".
nsAutoCString name;
url->GetFileName(name);
fileInfo.name = g_strdup(name.get());
if (!type.IsEmpty()) {
fileInfo.valid_fields = GNOME_VFS_FILE_INFO_FIELDS_MIME_TYPE;
fileInfo.mime_type = g_strdup(type.get());
}
}
}
if (type.IsEmpty()) {
nsCOMPtr<nsIMIMEService> ms(do_GetService("@mozilla.org/mime;1"));
if (ms) {
nsAutoCString fileExt;
aIconURI->GetFileExtension(fileExt);
if (!fileExt.IsEmpty()) {
ms->GetTypeFromExtension(fileExt, type);
}
}
}
// Get the icon theme
if (!gIconTheme) {
gIconTheme = _gnome_icon_theme_new();
if (!gIconTheme) {
_gnome_vfs_file_info_clear(&fileInfo);
return NS_ERROR_NOT_AVAILABLE;
}
}
char* name = _gnome_icon_lookup(gIconTheme, NULL, spec.get(), NULL, &fileInfo,
type.get(), GNOME_ICON_LOOKUP_FLAGS_NONE,
NULL);
_gnome_vfs_file_info_clear(&fileInfo);
if (!name)
return NS_ERROR_NOT_AVAILABLE;
// Get the default theme associated with the screen
// Do NOT free.
GtkIconTheme *theme = gtk_icon_theme_get_default();
if (!theme) {
g_free(name);
return NS_ERROR_UNEXPECTED;
}
GError *err = nullptr;
GdkPixbuf* buf = gtk_icon_theme_load_icon(theme, name, iconSize, (GtkIconLookupFlags)0, &err);
g_free(name);
if (!buf) {
if (err)
g_error_free(err);
return NS_ERROR_UNEXPECTED;
}
rv = ScaleIconBuf(&buf, iconSize);
NS_ENSURE_SUCCESS(rv, rv);
rv = moz_gdk_pixbuf_to_channel(buf, aIconURI,
getter_AddRefs(mRealChannel));
g_object_unref(buf);
return rv;
}
nsresult
nsIconChannel::InitWithGnome(nsIMozIconURI *aIconURI)
{
nsresult rv;
if (NS_FAILED(ensure_libgnomeui()) || NS_FAILED(ensure_libgnome()) || NS_FAILED(ensure_libgnomevfs())) {
gTriedToLoadGnomeLibs = PR_TRUE;
return NS_ERROR_NOT_AVAILABLE;
}
gTriedToLoadGnomeLibs = PR_TRUE;
if (!_gnome_program_get()) {
// Get the brandShortName from the string bundle to pass to GNOME
// as the application name. This may be used for things such as
// the title of grouped windows in the panel.
nsCOMPtr<nsIStringBundleService> bundleService =
do_GetService(NS_STRINGBUNDLE_CONTRACTID);
NS_ASSERTION(bundleService, "String bundle service must be present!");
nsCOMPtr<nsIStringBundle> bundle;
bundleService->CreateBundle("chrome://branding/locale/brand.properties",
getter_AddRefs(bundle));
nsAutoString appName;
if (bundle) {
bundle->GetStringFromName(NS_LITERAL_STRING("brandShortName").get(),
getter_Copies(appName));
} else {
NS_WARNING("brand.properties not present, using default application name");
appName.Assign(NS_LITERAL_STRING("Gecko"));
}
char* empty[] = { "" };
_gnome_init(NS_ConvertUTF16toUTF8(appName).get(), "1.0", 1, empty, NULL, 0, NULL);
}
nsCAutoString iconSizeString;
aIconURI->GetIconSize(iconSizeString);
PRUint32 iconSize;
if (iconSizeString.IsEmpty()) {
rv = aIconURI->GetImageSize(&iconSize);
NS_ASSERTION(NS_SUCCEEDED(rv), "GetImageSize failed");
} else {
int size;
GtkIconSize icon_size = moz_gtk_icon_size(iconSizeString.get());
gtk_icon_size_lookup(icon_size, &size, NULL);
iconSize = size;
}
nsCAutoString type;
aIconURI->GetContentType(type);
GnomeVFSFileInfo fileInfo = {0};
fileInfo.refcount = 1; // In case some GnomeVFS function addrefs and releases it
nsCAutoString spec;
nsCOMPtr<nsIURI> fileURI;
rv = aIconURI->GetIconFile(getter_AddRefs(fileURI));
if (fileURI) {
fileURI->GetAsciiSpec(spec);
// Only ask gnome-vfs for a GnomeVFSFileInfo for file: uris, to avoid a
// network request
PRBool isFile;
if (NS_SUCCEEDED(fileURI->SchemeIs("file", &isFile)) && isFile) {
_gnome_vfs_get_file_info(spec.get(), &fileInfo, GNOME_VFS_FILE_INFO_DEFAULT);
}
else {
// We have to get a leaf name from our uri...
nsCOMPtr<nsIURL> url(do_QueryInterface(fileURI));
if (url) {
nsCAutoString name;
// The filename we get is UTF-8-compatible, which matches gnome expectations.
// See also: http://lists.gnome.org/archives/gnome-vfs-list/2004-March/msg00049.html
// "Whenever we can detect the charset used for the URI type we try to
// convert it to/from utf8 automatically inside gnome-vfs."
// I'll interpret that as "otherwise, this field is random junk".
url->GetFileName(name);
fileInfo.name = g_strdup(name.get());
}
// If this is no nsIURL, nothing we can do really.
if (!type.IsEmpty()) {
fileInfo.valid_fields = GNOME_VFS_FILE_INFO_FIELDS_MIME_TYPE;
fileInfo.mime_type = g_strdup(type.get());
}
}
}
if (type.IsEmpty()) {
nsCOMPtr<nsIMIMEService> ms(do_GetService("@mozilla.org/mime;1"));
if (ms) {
nsCAutoString fileExt;
aIconURI->GetFileExtension(fileExt);
ms->GetTypeFromExtension(fileExt, type);
}
}
// Get the icon theme
if (!gIconTheme) {
gIconTheme = _gnome_icon_theme_new();
if (!gIconTheme) {
_gnome_vfs_file_info_clear(&fileInfo);
return NS_ERROR_NOT_AVAILABLE;
}
}
char* name = _gnome_icon_lookup(gIconTheme, NULL, spec.get(), NULL, &fileInfo,
type.get(), GNOME_ICON_LOOKUP_FLAGS_NONE,
NULL);
_gnome_vfs_file_info_clear(&fileInfo);
if (!name)
return NS_ERROR_NOT_AVAILABLE;
char* file = _gnome_icon_theme_lookup_icon(gIconTheme, name, iconSize,
NULL, NULL);
g_free(name);
if (!file)
return NS_ERROR_NOT_AVAILABLE;
// Create a GdkPixbuf buffer and scale it
GError *err = nsnull;
GdkPixbuf* buf = gdk_pixbuf_new_from_file(file, &err);
g_free(file);
if (!buf) {
if (err)
g_error_free(err);
return NS_ERROR_UNEXPECTED;
}
GdkPixbuf* scaled = buf;
if (gdk_pixbuf_get_width(buf) != iconSize &&
gdk_pixbuf_get_height(buf) != iconSize) {
// scale...
scaled = gdk_pixbuf_scale_simple(buf, iconSize, iconSize,
GDK_INTERP_BILINEAR);
g_object_unref(buf);
if (!scaled)
return NS_ERROR_OUT_OF_MEMORY;
}
// XXX Respect icon state
rv = moz_gdk_pixbuf_to_channel(scaled, aIconURI,
getter_AddRefs(mRealChannel));
g_object_unref(scaled);
return rv;
}
