Support cmd-left/right for history.

chrome/browser/global_keyboard_shortcuts_mac.mm

 // Copyright (c) 2009 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 <Carbon/Carbon.h>
 
 #include "chrome/browser/global_keyboard_shortcuts_mac.h"
 
 #include "base/basictypes.h"
 #include "chrome/app/chrome_dll_resource.h"
 
-const KeyboardShortcutData* GetKeyboardShortCutTable(size_t* num_entries) {
+const KeyboardShortcutData* GetWindowKeyboardShortcutTable
+    (size_t* num_entries) {
   static const KeyboardShortcutData keyboard_shortcuts[] = {
     {true,  true,  false, kVK_ANSI_RightBracket, IDC_SELECT_NEXT_TAB},
     {false, false, true,  kVK_PageDown,      IDC_SELECT_NEXT_TAB},
     {false, false, true,  kVK_Tab,           IDC_SELECT_NEXT_TAB},
     {true,  true,  false, kVK_ANSI_LeftBracket, IDC_SELECT_PREVIOUS_TAB},
     {false, false, true,  kVK_PageUp,        IDC_SELECT_PREVIOUS_TAB},
     {false, true,  true,  kVK_Tab,           IDC_SELECT_PREVIOUS_TAB},
     // Cmd-0..8 select the Nth tab, with cmd-9 being "last tab".
     {true, false,  false, kVK_ANSI_1,        IDC_SELECT_TAB_0},
     {true, false,  false, kVK_ANSI_2,        IDC_SELECT_TAB_1},
     {true, false,  false, kVK_ANSI_3,        IDC_SELECT_TAB_2},
     {true, false,  false, kVK_ANSI_4,        IDC_SELECT_TAB_3},
     {true, false,  false, kVK_ANSI_5,        IDC_SELECT_TAB_4},
     {true, false,  false, kVK_ANSI_6,        IDC_SELECT_TAB_5},
     {true, false,  false, kVK_ANSI_7,        IDC_SELECT_TAB_6},
     {true, false,  false, kVK_ANSI_8,        IDC_SELECT_TAB_7},
     {true, false,  false, kVK_ANSI_9,        IDC_SELECT_LAST_TAB},
-    // TODO(pinkerton): These can't live here yet, they need to be plumbed
-    // through the renderer first so it can override if in a text field.
-    // http://crbug.com/12557
-    // {true, false, false, kVK_LeftArrow,      IDC_BACK},
-    // {true, false, false, kVK_RightArrow,     IDC_FORWARD},
   };
 
   *num_entries = arraysize(keyboard_shortcuts);
 
   return keyboard_shortcuts;
 }
 
-int CommandForKeyboardShortcut(bool command_key, bool shift_key, bool cntrl_key,
-    int vkey_code) {
+const KeyboardShortcutData* GetBrowserKeyboardShortcutTable
+    (size_t* num_entries) {
+  static const KeyboardShortcutData keyboard_shortcuts[] = {
+    {true, false, false, kVK_LeftArrow,      IDC_BACK},
+    {true, false, false, kVK_RightArrow,     IDC_FORWARD},
+  };
+
+  *num_entries = arraysize(keyboard_shortcuts);
+
+  return keyboard_shortcuts;
+}
+
+static int CommandForKeyboardShortcut(
+    const KeyboardShortcutData* (*get_keyboard_shortcut_table)(size_t*),
+    bool command_key, bool shift_key, bool cntrl_key, int vkey_code) {
 
   // Scan through keycodes and see if it corresponds to one of the global
   // shortcuts on file.
   //
   // TODO(jeremy): Change this into a hash table once we get enough
   // entries in the array to make a difference.
   size_t num_shortcuts = 0;
-  const KeyboardShortcutData *it = GetKeyboardShortCutTable(&num_shortcuts);
+  const KeyboardShortcutData *it = get_keyboard_shortcut_table(&num_shortcuts);
   for (size_t i = 0; i < num_shortcuts; ++i, ++it) {
     if (it->command_key == command_key &&
         it->shift_key == shift_key &&
         it->cntrl_key == cntrl_key &&
         it->vkey_code == vkey_code) {
       return it->chrome_command;
     }
   }
 
   return -1;
 }
+
+int CommandForWindowKeyboardShortcut(
+    bool command_key, bool shift_key, bool cntrl_key, int vkey_code) {
+  return CommandForKeyboardShortcut(GetWindowKeyboardShortcutTable,
+                                    command_key, shift_key,
+                                    cntrl_key, vkey_code);
+}
+
+int CommandForBrowserKeyboardShortcut(
+    bool command_key, bool shift_key, bool cntrl_key, int vkey_code) {
+  return CommandForKeyboardShortcut(GetBrowserKeyboardShortcutTable,
+                                    command_key, shift_key,
+                                    cntrl_key, vkey_code);
+}