Multi-tab selection for Linux.

chrome/browser/ui/gtk/tabs/tab_strip_menu_controller.cc

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/ui/gtk/tabs/tab_strip_menu_controller.h"
+
+#include "chrome/browser/tabs/tab_strip_model.h"
+#include "chrome/browser/ui/gtk/accelerators_gtk.h"
+#include "chrome/browser/ui/gtk/menu_gtk.h"
+#include "chrome/browser/ui/gtk/tabs/tab_gtk.h"
+
+TabStripMenuController::TabStripMenuController(TabGtk* tab,
+                                               TabStripModel* model,
+                                               int index)
+    : tab_(tab),
+      model_(this, model, index) {
+  menu_.reset(new MenuGtk(this, &model_));
+}
+
+void TabStripMenuController::RunMenu(const gfx::Point& point,
+                                     guint32 event_time) {
+  menu_->PopupAsContext(point, event_time);
+}
+
+void TabStripMenuController::Cancel() {
+  tab_ = NULL;
+  menu_->Cancel();
+}
+
+bool TabStripMenuController::IsCommandIdChecked(int command_id) const {
+  return false;
+}
+
+bool TabStripMenuController::IsCommandIdEnabled(int command_id) const {
+  return tab_ && tab_->delegate()->IsCommandEnabledForTab(
+      static_cast<TabStripModel::ContextMenuCommand>(command_id),
+      tab_);
+}
+
+bool TabStripMenuController::GetAcceleratorForCommandId(
+    int command_id,
+    ui::Accelerator* accelerator) {
+  int browser_command;
+  if (!TabStripModel::ContextMenuCommandToBrowserCommand(command_id,
+                                                         &browser_command))
+    return false;

[James Hawkins, 2011/06/23 18:08:26]

nit: This would be more readable if you add a blank line after this line. In
general I'm a fan of blank lines after one-line if blocks, but it's up to your
discretion.

+  const ui::AcceleratorGtk* accelerator_gtk =
+      AcceleratorsGtk::GetInstance()->GetPrimaryAcceleratorForCommand(
+          browser_command);
+  if (accelerator_gtk)
+    *accelerator = *accelerator_gtk;
+  return !!accelerator_gtk;
+}
+
+void TabStripMenuController::ExecuteCommand(int command_id) {
+  // Checking if the tab still exists since it is possible that the tab
+  // corresponding to this context menu has been closed.
+  if (!tab_)
+    return;
+  tab_->delegate()->ExecuteCommandForTab(
+      static_cast<TabStripModel::ContextMenuCommand>(command_id), tab_);
+}
+
+GtkWidget* TabStripMenuController::GetImageForCommandId(int command_id) const {
+  int browser_cmd_id;
+  if (!TabStripModel::ContextMenuCommandToBrowserCommand(command_id,
+                                                         &browser_cmd_id))
+    return NULL;
+  return MenuGtk::Delegate::GetDefaultImageForCommandId(browser_cmd_id);
+}