Lands http://codereview.chromium.org/291006 for Pierre:

Open all bookmarks in a bookmark menu folder according to the window disposition derived from the event flags. This is currently only possible with a middle click on the top level bookmark bar button. 

BUG=19597
TEST=Control click a folder on your bookmark bar, and thorougly test
bookmark bar, especially with folders.

Review URL: http://codereview.chromium.org/334047

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@30281 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/views/bookmark_bar_view.cc

@@ -227,9 +227,15 @@ class BookmarkFolderButton : public views::MenuButton {
   }
 
   virtual bool IsTriggerableEvent(const views::MouseEvent& e) {
-    // This is hard coded to avoid potential notification on left mouse down,
-    // which we want to show the menu.
-    return e.IsMiddleMouseButton();
+    // Left clicks should show the menu contents and right clicks should show
+    // the context menu. They should not trigger the opening of underlying urls.
+    if (e.GetFlags() == views::MouseEvent::EF_LEFT_BUTTON_DOWN ||
+        e.GetFlags() == views::MouseEvent::EF_RIGHT_BUTTON_DOWN)
+      return false;
+
+    WindowOpenDisposition disposition(
+        event_utils::DispositionFromEventFlags(e.GetFlags()));
+    return disposition != CURRENT_TAB;
   }
 
   virtual void Paint(gfx::Canvas *canvas) {

chrome/browser/views/bookmark_menu_controller_views.cc

@@ -89,10 +89,16 @@ bool BookmarkMenuController::IsTriggerableEvent(const views::MouseEvent& e) {
 void BookmarkMenuController::ExecuteCommand(int id, int mouse_event_flags) {
   DCHECK(page_navigator_);
   DCHECK(menu_id_to_node_map_.find(id) != menu_id_to_node_map_.end());
-  GURL url = menu_id_to_node_map_[id]->GetURL();
-  page_navigator_->OpenURL(
-      url, GURL(), event_utils::DispositionFromEventFlags(mouse_event_flags),
-      PageTransition::AUTO_BOOKMARK);
+
+  const BookmarkNode* node = menu_id_to_node_map_[id];
+  std::vector<const BookmarkNode*> selection;
+  selection.push_back(node);
+
+  WindowOpenDisposition initial_disposition =
+      event_utils::DispositionFromEventFlags(mouse_event_flags);
+
+  bookmark_utils::OpenAll(parent_, profile_, page_navigator_, selection,
+                          initial_disposition);
 }
 
 bool BookmarkMenuController::GetDropFormats(

views/controls/button/menu_button.cc

@@ -189,8 +189,8 @@ bool MenuButton::OnMousePressed(const MouseEvent& e) {
 void MenuButton::OnMouseReleased(const MouseEvent& e,
                                  bool canceled) {
   if (GetDragOperations(e.x(), e.y()) != DragDropTypes::DRAG_NONE &&
-      state() != BS_DISABLED && !canceled && !InDrag() &&
-      e.IsOnlyLeftMouseButton() && HitTest(e.location())) {
+      state() != BS_DISABLED && !canceled && !InDrag() && !IsTriggerableEvent(e)
+      && HitTest(e.location())) {
     Activate();
   } else {
     TextButton::OnMouseReleased(e, canceled);

views/controls/menu/menu_controller.cc

@@ -439,7 +439,11 @@ void MenuController::OnMouseReleased(SubmenuView* source,
       return;
   }
 
-  if (!part.is_scroll() && part.menu && !part.menu->HasSubmenu()) {
+  // We can use Ctrl+click or the middle mouse button to recursively open urls
+  // for selected folder menu items. If it's only a left click, show the
+  // contents of the folder.
+  if (!part.is_scroll() && part.menu && !(part.menu->HasSubmenu() &&
+      (event.GetFlags() == MouseEvent::EF_LEFT_BUTTON_DOWN))) {
     if (part.menu->GetDelegate()->IsTriggerableEvent(event)) {
       Accept(part.menu, event.GetFlags());
       return;