GTK: Add view ids to our widgets. These will be used for testing.

Also add unit test to test test infrastructure.

BUG=19214

Review URL: http://codereview.chromium.org/164519

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@23392 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 28 insertions, 1 deletions

diff --git a/chrome/browser/gtk/tabs/tab_strip_gtk.cc b/chrome/browser/gtk/tabs/tab_strip_gtk.cc
index f6ed7d8..803c026 100644
--- a/chrome/browser/gtk/tabs/tab_strip_gtk.cc
+++ b/chrome/browser/gtk/tabs/tab_strip_gtk.cc
@@ -722,6 +722,8 @@ void TabStripGtk::Init() {
     drop_indicator_width = gdk_pixbuf_get_width(drop_image);
     drop_indicator_height = gdk_pixbuf_get_height(drop_image);
   }
+
+  ViewIDUtil::SetDelegateForWidget(widget(), this);
 }
 
 void TabStripGtk::Show() {
@@ -849,6 +851,26 @@ gfx::Point TabStripGtk::GetTabStripOriginForWidget(GtkWidget* target) {
 }
 
 ////////////////////////////////////////////////////////////////////////////////
+// ViewIDUtil::Delegate implementation
+
+GtkWidget* TabStripGtk::GetWidgetForViewID(ViewID view_id) {
+  if (GetTabCount() > 0) {
+    if (view_id == VIEW_ID_TAB_LAST) {
+      return GetTabAt(GetTabCount() - 1)->widget();
+    } else if ((view_id >= VIEW_ID_TAB_0) && (view_id < VIEW_ID_TAB_LAST)) {
+      int index = view_id - VIEW_ID_TAB_0;
+      if (index >= 0 && index < GetTabCount()) {
+        return GetTabAt(index)->widget();
+      } else {
+        return NULL;
+      }
+    }
+  }
+
+  return NULL;
+}
+
+////////////////////////////////////////////////////////////////////////////////
 // TabStripGtk, TabStripModelObserver implementation:
 
 void TabStripGtk::TabInsertedAt(TabContents* contents,
diff --git a/chrome/browser/gtk/tabs/tab_strip_gtk.h b/chrome/browser/gtk/tabs/tab_strip_gtk.h
index 69e4372..5445654 100644
--- a/chrome/browser/gtk/tabs/tab_strip_gtk.h
+++ b/chrome/browser/gtk/tabs/tab_strip_gtk.h
@@ -13,6 +13,7 @@
 #include "base/task.h"
 #include "base/message_loop.h"
 #include "chrome/browser/gtk/tabs/tab_gtk.h"
+#include "chrome/browser/gtk/view_id_util.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
 #include "chrome/common/notification_observer.h"
 #include "chrome/common/owned_widget_gtk.h"
@@ -24,7 +25,8 @@ class GtkThemeProvider;
 class TabStripGtk : public TabStripModelObserver,
                     public TabGtk::TabDelegate,
                     public MessageLoopForUI::Observer,
-                    public NotificationObserver {
+                    public NotificationObserver,
+                    public ViewIDUtil::Delegate {
  public:
   class TabAnimation;
 
@@ -86,6 +88,9 @@ class TabStripGtk : public TabStripModelObserver,
   // allocated.
   gfx::Point GetTabStripOriginForWidget(GtkWidget* widget);
 
+  // ViewIDUtil::Delegate implementation ---------------------------------------
+  virtual GtkWidget* GetWidgetForViewID(ViewID id);
+
  protected:
   // TabStripModelObserver implementation:
   virtual void TabInsertedAt(TabContents* contents,