cros: Allow pin keyboard to keep focus without popping up the pin keyboard.

ui/keyboard/keyboard_util.cc

 // Copyright (c) 2013 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 "ui/keyboard/keyboard_util.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string16.h"
 #include "media/audio/audio_manager.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/base/ime/input_method.h"
 #include "ui/base/ime/text_input_client.h"
 #include "ui/events/event_processor.h"
 #include "ui/events/event_utils.h"
 #include "ui/events/keycodes/dom/dom_code.h"
 #include "ui/events/keycodes/dom/dom_key.h"
 #include "ui/events/keycodes/dom/keycode_converter.h"
 #include "ui/events/keycodes/keyboard_code_conversion.h"
 #include "ui/keyboard/keyboard_controller.h"
 #include "ui/keyboard/keyboard_switches.h"
 #include "ui/keyboard/keyboard_ui.h"
+#include "ui/keyboard/scoped_keyboard_disabler.h"
 
 namespace {
 
 const char kKeyDown[] ="keydown";
 const char kKeyUp[] = "keyup";
 
 void SendProcessKeyEvent(ui::EventType type,
                          aura::WindowTreeHost* host) {
   ui::KeyEvent event(type, ui::VKEY_PROCESSKEY, ui::DomCode::NONE,
                      ui::EF_IS_SYNTHESIZED, ui::DomKey::PROCESS,
@@ skipping 66 matching lines @@
   return g_requested_keyboard_state;
 }
 
 std::string GetKeyboardLayout() {
   // TODO(bshe): layout string is currently hard coded. We should use more
   // standard keyboard layouts.
   return GetAccessibilityKeyboardEnabled() ? "system-qwerty" : "qwerty";
 }
 
 bool IsKeyboardEnabled() {
+  // Blocks keyboard from showing up regardless of other settings.
+  if (ScopedKeyboardDisabler::GetForceDisableVirtualKeyboard())
+    return false;
   // Accessibility setting prioritized over policy setting.
   if (g_accessibility_keyboard_enabled)
     return true;
   // Policy strictly disables showing a virtual keyboard.
   if (g_keyboard_show_override == keyboard::KEYBOARD_SHOW_OVERRIDE_DISABLED)
     return false;
   // Policy strictly enables the keyboard.
   if (g_keyboard_show_override == keyboard::KEYBOARD_SHOW_OVERRIDE_ENABLED)
     return true;
   // Run-time flag to enable keyboard has been included.
@@ skipping 248 matching lines @@
 }
 
 void LogKeyboardControlEvent(KeyboardControlEvent event) {
   UMA_HISTOGRAM_ENUMERATION(
       "VirtualKeyboard.KeyboardControlEvent",
       event,
       keyboard::KEYBOARD_CONTROL_MAX);
 }
 
 }  // namespace keyboard