[gtk+] Restore accessible names for image-only buttons

[Matthias Clasen <matthiasc src gnome org>]

commit f9c8fefeda2db1e672c61a5e6cba556086c42aaa
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Oct 14 10:33:32 2013 -0400

    Restore accessible names for image-only buttons
    
    With the stock system being deprecated now, we should provide
    meaningful accessible names for buttons that are constructed
    from icon names or GIcons. This commit reuses the existing
    translations.
    
    It is possible that some common icon names are not covered
    here because they were not present as stock items. These can
    be added to the table later.

 gtk/a11y/gtkimageaccessible.c |  165 +++++++++++++++++++++++++++++++++++++----
 po/POTFILES.in                |    1 +
 2 files changed, 152 insertions(+), 14 deletions(-)
---
diff --git a/gtk/a11y/gtkimageaccessible.c b/gtk/a11y/gtkimageaccessible.c
index 9034f69..2169970 100644
--- a/gtk/a11y/gtkimageaccessible.c
+++ b/gtk/a11y/gtkimageaccessible.c
@@ -20,6 +20,7 @@
 #include <string.h>
 #include <gtk/gtk.h>
 #include "gtkimageaccessible.h"
+#include "gtkintl.h"
 
 struct _GtkImageAccessiblePrivate
 {
@@ -42,6 +43,117 @@ gtk_image_accessible_initialize (AtkObject *accessible,
   accessible->role = ATK_ROLE_ICON;
 }
 
+typedef struct {
+  const gchar *name;
+  const gchar *label;
+} NameMapEntry;
+
+static const NameMapEntry name_map[] = {
+  { "help-about", NC_("Stock label", "_About") },
+  { "list-add", NC_("Stock label", "_Add") },
+  { "format-text-bold", NC_("Stock label", "_Bold") },
+  { "media-optical", NC_("Stock label", "_CD-ROM") },
+  { "edit-clear", NC_("Stock label", "_Clear") },
+  { "window-close", NC_("Stock label", "_Close") },
+  { "window-minimize", N_("Minimize") },
+  { "window-maximize", N_("Maximize") },
+  { "window-restore", N_("Restore") },
+  { "edit-copy", NC_("Stock label", "_Copy") },
+  { "edit-cut", NC_("Stock label", "Cu_t") },
+  { "edit-delete", NC_("Stock label", "_Delete") },
+  { "dialog-error", NC_("Stock label", "Error") },
+  { "dialog-information", NC_("Stock label", "Information") },
+  { "dialog-question", NC_("Stock label", "Question") },
+  { "dialog-warning", NC_("Stock label", "Warning") },
+  { "system-run", NC_("Stock label", "_Execute") },
+  { "text-x-generic", NC_("Stock label", "_File") },
+  { "edit-find", NC_("Stock label", "_Find") },
+  { "edit-find-replace", NC_("Stock label", "Find and _Replace") },
+  { "media-floppy", NC_("Stock label", "_Floppy") },
+  { "view-fullscreen", NC_("Stock label", "_Fullscreen") },
+  { "go-bottom", NC_("Stock label, navigation", "_Bottom") },
+  { "go-first", NC_("Stock label, navigation", "_First") },
+  { "go-last", NC_("Stock label, navigation", "_Last") },
+  { "go-top", NC_("Stock label, navigation", "_Top") },
+  { "go-previous", NC_("Stock label, navigation", "_Back") },
+  { "go-down", NC_("Stock label, navigation", "_Down") },
+  { "go-next", NC_("Stock label, navigation", "_Forward") },
+  { "go-up", NC_("Stock label, navigation", "_Up") },
+  { "drive-harddisk", NC_("Stock label", "_Hard Disk") },
+  { "help-contents", NC_("Stock label", "_Help") },
+  { "go-home", NC_("Stock label", "_Home") },
+  { "format-indent-more", NC_("Stock label", "Increase Indent") },
+  { "dialog-information", NC_("Stock label", "_Information") },
+  { "format-text-italic", NC_("Stock label", "_Italic") },
+  { "go-jump", NC_("Stock label", "_Jump to") },
+  { "format-justify-center", NC_("Stock label", "_Center") },
+  { "format-justify-fill", NC_("Stock label", "_Fill") },
+  { "format-justify-left", NC_("Stock label", "_Left") },
+  { "format-justify-right", NC_("Stock label", "_Right") },
+  { "view-restore", NC_("Stock label", "_Leave Fullscreen") },
+  { "media-seek-forward", NC_("Stock label, media", "_Forward") },
+  { "media-skip-forward", NC_("Stock label, media", "_Next") },
+  { "media-playback-pause", NC_("Stock label, media", "P_ause") },
+  { "media-playback-start", NC_("Stock label, media", "_Play") },
+  { "media-skip-backward", NC_("Stock label, media", "Pre_vious") },
+  { "media-record", NC_("Stock label, media", "_Record") },
+  { "media-seek-backward", NC_("Stock label, media", "R_ewind") },
+  { "media-playback-stop", NC_("Stock label, media", "_Stop") },
+  { "network-idle", NC_("Stock label", "_Network") },
+  { "document-new", NC_("Stock label", "_New") },
+  { "document-open", NC_("Stock label", "_Open") },
+  { "edit-paste", NC_("Stock label", "_Paste") },
+  { "document-print", NC_("Stock label", "_Print") },
+  { "document-print-preview", NC_("Stock label", "Print Pre_view") },
+  { "document-properties", NC_("Stock label", "_Properties") },
+  { "application-exit", NC_("Stock label", "_Quit") },
+  { "edit-redo", NC_("Stock label", "_Redo") },
+  { "view-refresh", NC_("Stock label", "_Refresh") },
+  { "list-remove", NC_("Stock label", "_Remove") },
+  { "document-revert", NC_("Stock label", "_Revert") },
+  { "document-save", NC_("Stock label", "_Save") },
+  { "document-save-as", NC_("Stock label", "Save _As") },
+  { "edit-select-all", NC_("Stock label", "Select _All") },
+  { "view-sort-ascending", NC_("Stock label", "_Ascending") },
+  { "view-sort-descending", NC_("Stock label", "_Descending") },
+  { "tools-check-spelling", NC_("Stock label", "_Spell Check") },
+  { "process-stop", NC_("Stock label", "_Stop") },
+  { "format-text-strikethrough", NC_("Stock label", "_Strikethrough") },
+  { "format-text-underline", NC_("Stock label", "_Underline") },
+  { "edit-undo", NC_("Stock label", "_Undo") },
+  { "format-indent-less", NC_("Stock label", "Decrease Indent") },
+  { "zoom-original", NC_("Stock label", "_Normal Size") },
+  { "zoom-fit-best", NC_("Stock label", "Best _Fit") },
+  { "zoom-in", NC_("Stock label", "Zoom _In") },
+  { "zoom-out", NC_("Stock label", "Zoom _Out") }
+};
+
+static gchar *
+name_from_icon_name (const gchar *icon_name)
+{
+  gchar *name;
+  const gchar *label;
+  gint i;
+
+  name = g_strdup (icon_name);
+  if (g_str_has_suffix (name, "-symbolic"))
+    name[strlen (name) - strlen ("-symbolic")] = '\0';
+
+  for (i = 0; i < G_N_ELEMENTS (name_map); i++)
+    {
+      if (g_str_equal (name, name_map[i].name))
+        {
+          label = g_dpgettext2 (GETTEXT_PACKAGE, "Stock label", name_map[i].label);
+          g_free (name);
+
+          return _gtk_toolbar_elide_underscores (label);
+        }
+    }
+
+  g_free (name);
+  return NULL;
+}
+
 static void
 gtk_image_accessible_finalize (GObject *object)
 {
@@ -62,6 +174,7 @@ gtk_image_accessible_get_name (AtkObject *accessible)
   GtkStockItem stock_item;
   gchar *stock_id;
   const gchar *name;
+  GtkImageType storage_type;
 
   widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
   if (widget == NULL)
@@ -77,21 +190,45 @@ gtk_image_accessible_get_name (AtkObject *accessible)
   g_free (image_accessible->priv->stock_name);
   image_accessible->priv->stock_name = NULL;
 
-  G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
 
-  if (gtk_image_get_storage_type (image) != GTK_IMAGE_STOCK)
-    return NULL;
+  storage_type = gtk_image_get_storage_type (image);
+  if (storage_type == GTK_IMAGE_STOCK)
+    {
+      gtk_image_get_stock (image, &stock_id, NULL);
+      if (stock_id == NULL)
+        return NULL;
 
-  gtk_image_get_stock (image, &stock_id, NULL);
-  if (stock_id == NULL)
-    return NULL;
+      if (!gtk_stock_lookup (stock_id, &stock_item))
+        return NULL;
 
-  if (!gtk_stock_lookup (stock_id, &stock_item))
-    return NULL;
+g_print ("looking up stock %s\n", stock_id);
+G_GNUC_END_IGNORE_DEPRECATIONS;
 
-  G_GNUC_END_IGNORE_DEPRECATIONS;
+      image_accessible->priv->stock_name = _gtk_toolbar_elide_underscores (stock_item.label);
+    }
+  else if (storage_type == GTK_IMAGE_ICON_NAME)
+    {
+      const gchar *icon_name;
+
+      gtk_image_get_icon_name (image, &icon_name, NULL);
+g_print ("looking up icon_name %s\n", icon_name);
+      image_accessible->priv->stock_name = name_from_icon_name (icon_name);
+    }
+  else if (storage_type == GTK_IMAGE_GICON)
+    {
+      GIcon *icon;
+      const gchar * const *icon_names;
+
+      gtk_image_get_gicon (image, &icon, NULL);
+      if (G_IS_THEMED_ICON (icon))
+        {
+         icon_names = g_themed_icon_get_names (G_THEMED_ICON (icon));
+g_print ("looking up gicon %s\n", icon_names[0]);
+          image_accessible->priv->stock_name = name_from_icon_name (icon_names[0]);
+        }
+    }
 
-  image_accessible->priv->stock_name = _gtk_toolbar_elide_underscores (stock_item.label);
   return image_accessible->priv->stock_name;
 }
 
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 062e9c2..a428df2 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -23,6 +23,7 @@ gtk/a11y/gtkcolorswatchaccessible.c
 gtk/a11y/gtkcomboboxaccessible.c
 gtk/a11y/gtkentryaccessible.c
 gtk/a11y/gtkexpanderaccessible.c
+gtk/a11y/gtkimageaccessible.c
 gtk/a11y/gtkmenuitemaccessible.c
 gtk/a11y/gtkrenderercellaccessible.c
 gtk/a11y/gtkscalebuttonaccessible.c