Support Shift+Search+Arrows to navigate and Control to silence speech everywhere

ash/accelerators/accelerator_table.cc

 // Copyright (c) 2012 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 "ash/accelerators/accelerator_table.h"
 
 #include "base/basictypes.h"
 
 namespace ash {
 
@@ skipping 57 matching lines @@
   { true, ui::VKEY_M, ui::EF_SHIFT_DOWN | ui::EF_ALT_DOWN,
     OPEN_FILE_MANAGER },
   { true, ui::VKEY_T, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN, OPEN_CROSH },
   { true, ui::VKEY_G, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN,
     DISABLE_GPU_WATCHDOG },
 #endif  // defined(OS_CHROMEOS)
   { true, ui::VKEY_I, ui::EF_SHIFT_DOWN | ui::EF_ALT_DOWN, OPEN_FEEDBACK_PAGE },
 #if !defined(OS_WIN)
   { true, ui::VKEY_Q, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN, EXIT },
 #endif
-  { true, ui::VKEY_Z, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN,
-    TOGGLE_SPOKEN_FEEDBACK },
   { true, ui::VKEY_I, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN,
     TOUCH_HUD_MODE_CHANGE },
   { true, ui::VKEY_I, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN | ui::EF_SHIFT_DOWN,
     TOUCH_HUD_CLEAR },
 
   { true, ui::VKEY_N, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN,
     NEW_INCOGNITO_WINDOW },
   { true, ui::VKEY_N, ui::EF_CONTROL_DOWN, NEW_WINDOW },
   { true, ui::VKEY_T, ui::EF_CONTROL_DOWN, NEW_TAB },
   { true, ui::VKEY_OEM_MINUS,
@@ skipping 62 matching lines @@
   // Media Player shortcuts.
   { true, ui::VKEY_MEDIA_NEXT_TRACK, ui::EF_NONE, MEDIA_NEXT_TRACK},
   { true, ui::VKEY_MEDIA_PLAY_PAUSE, ui::EF_NONE, MEDIA_PLAY_PAUSE},
   { true, ui::VKEY_MEDIA_PREV_TRACK, ui::EF_NONE, MEDIA_PREV_TRACK},
 
   // Debugging shortcuts that need to be available to end-users in
   // release builds.
   { true, ui::VKEY_U, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN | ui::EF_SHIFT_DOWN,
     PRINT_UI_HIERARCHIES },
 
+  // Accessibility: Spoken feedback shortcuts. The first one is to toggle
+  // spoken feedback on or off. The others are only valid when
+  // spoken feedback is enabled.
+  { true, ui::VKEY_Z, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN,
+    TOGGLE_SPOKEN_FEEDBACK },
+  { true, ui::VKEY_CONTROL, ui::EF_CONTROL_DOWN, SILENCE_SPOKEN_FEEDBACK},
+  { false, ui::VKEY_HOME, ui::EF_SHIFT_DOWN, ACCESSIBLE_FOCUS_PREVIOUS},
+  { false, ui::VKEY_PRIOR, ui::EF_SHIFT_DOWN, ACCESSIBLE_FOCUS_PREVIOUS},
+  { false, ui::VKEY_END, ui::EF_SHIFT_DOWN, ACCESSIBLE_FOCUS_NEXT},
+  { false, ui::VKEY_NEXT, ui::EF_SHIFT_DOWN, ACCESSIBLE_FOCUS_NEXT},
+
   // TODO(yusukes): Handle VKEY_MEDIA_STOP, and
   // VKEY_MEDIA_LAUNCH_MAIL.
 };
 
 const size_t kAcceleratorDataLength = arraysize(kAcceleratorData);
 
 #if !defined(NDEBUG)
 const AcceleratorData kDesktopAcceleratorData[] = {
 #if defined(OS_CHROMEOS)
   // Extra shortcut for debug build to control magnifier on linux desktop.
@@ skipping 199 matching lines @@
 #if defined(OS_CHROMEOS)
   CYCLE_DISPLAY_MODE,
   DISABLE_GPU_WATCHDOG,
 #endif  // defined(OS_CHROMEOS)
 };
 
 const size_t kActionsAllowedInAppModeLength =
     arraysize(kActionsAllowedInAppMode);
 
 }  // namespace ash