Add autoclick to settings page under the accessibility section.

ash/autoclick/autoclick_controller.cc

 // Copyright 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 "ash/autoclick/autoclick_controller.h"
 
 #include "ash/shell.h"
 #include "ash/wm/coordinate_conversion.h"
 #include "base/timer/timer.h"
 #include "ui/aura/env.h"
 #include "ui/aura/root_window.h"
 #include "ui/events/event.h"
 #include "ui/events/event_constants.h"
 #include "ui/events/event_handler.h"
 #include "ui/gfx/point.h"
 
 namespace ash {
 
-namespace {
-
-// The default wait time between last mouse movement and sending the autoclick.
-int kDefaultClickWaitTimeMs = 500;
-
-}  // namespace
+// static.
+const int AutoclickController::kDefaultAutoclickDelayMs = 400;
 
 class AutoclickControllerImpl : public AutoclickController,
                                 public ui::EventHandler {
  public:
   AutoclickControllerImpl();
   virtual ~AutoclickControllerImpl();
 
  private:
   // AutoclickController overrides:
   virtual void SetEnabled(bool enabled) OVERRIDE;
   virtual bool IsEnabled() const OVERRIDE;
-  virtual void SetClickWaitTime(int wait_time_ms) OVERRIDE;
-  virtual int GetClickWaitTime() const OVERRIDE;
+  virtual void SetAutoclickDelay(int delay_ms) OVERRIDE;
+  virtual int GetAutoclickDelay() const OVERRIDE;
 
   // ui::EventHandler overrides:
   virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE;
   virtual void OnKeyEvent(ui::KeyEvent* event) OVERRIDE;
   virtual void OnTouchEvent(ui::TouchEvent* event) OVERRIDE;
 
   void InitClickTimer();
 
   void DoAutoclick();
 
   bool enabled_;
-  int wait_time_ms_;
+  int delay_ms_;
   int mouse_event_flags_;
   scoped_ptr<base::Timer> autoclick_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(AutoclickControllerImpl);
 };
 
 
 AutoclickControllerImpl::AutoclickControllerImpl()
     : enabled_(false),
-      wait_time_ms_(kDefaultClickWaitTimeMs),
+      delay_ms_(kDefaultAutoclickDelayMs),
       mouse_event_flags_(ui::EF_NONE) {
   InitClickTimer();
 }
 
 AutoclickControllerImpl::~AutoclickControllerImpl() {
 }
 
 void AutoclickControllerImpl::SetEnabled(bool enabled) {
   if (enabled_ == enabled)
     return;
   enabled_ = enabled;
 
   if (enabled_) {
     Shell::GetInstance()->AddPreTargetHandler(this);
     autoclick_timer_->Stop();
   } else {
     Shell::GetInstance()->RemovePreTargetHandler(this);
   }
 }
 
 bool AutoclickControllerImpl::IsEnabled() const {
   return enabled_;
 }
 
-void AutoclickControllerImpl::SetClickWaitTime(int wait_time_ms) {
-  wait_time_ms_ = wait_time_ms;
+void AutoclickControllerImpl::SetAutoclickDelay(int delay_ms) {
+  delay_ms_ = delay_ms;
   InitClickTimer();
 }
 
-int AutoclickControllerImpl::GetClickWaitTime() const {
-  return wait_time_ms_;
+int AutoclickControllerImpl::GetAutoclickDelay() const {
+  return delay_ms_;
 }
 
 void AutoclickControllerImpl::InitClickTimer() {
   autoclick_timer_.reset(new base::Timer(
       FROM_HERE,
-      base::TimeDelta::FromMilliseconds(wait_time_ms_),
+      base::TimeDelta::FromMilliseconds(delay_ms_),
       base::Bind(&AutoclickControllerImpl::DoAutoclick,
                  base::Unretained(this)),
       false));
 }
 
 void AutoclickControllerImpl::OnMouseEvent(ui::MouseEvent* event) {
   if (event->type() == ui::ET_MOUSE_MOVED) {
     mouse_event_flags_ = event->flags();
     autoclick_timer_->Reset();
   } else if (event->type() == ui::ET_MOUSE_PRESSED) {
@@ skipping 41 matching lines @@
   root_window->AsRootWindowHostDelegate()->OnHostMouseEvent(&press_event);
   root_window->AsRootWindowHostDelegate()->OnHostMouseEvent(&release_event);
 }
 
 // static.
 AutoclickController* AutoclickController::CreateInstance() {
   return new AutoclickControllerImpl();
 }
 
 }  // namespace ash