Consolidate win/x dispatchers

ash/accelerators/accelerator_dispatcher.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_dispatcher.h"
 
+#if defined(USE_X11)
+#include <X11/Xlib.h>
+
+// Xlib defines RootWindow
+#ifdef RootWindow
+#undef RootWindow
+#endif
+#endif  // defined(USE_X11)
+
+#include "ash/accelerators/accelerator_controller.h"
+#include "ash/shell.h"
+#include "ui/aura/env.h"
+#include "ui/aura/event.h"
+#include "ui/aura/root_window.h"
+#include "ui/base/accelerators/accelerator.h"
+#include "ui/base/events.h"
+
 namespace ash {
+namespace {
+
+const int kModifierMask = (ui::EF_SHIFT_DOWN |
+                           ui::EF_CONTROL_DOWN |
+                           ui::EF_ALT_DOWN);
+#if defined(OS_WIN)
+bool IsKeyEvent(const MSG& msg) {
+  return
+      msg.message == WM_KEYDOWN || msg.message == WM_SYSKEYDOWN ||
+      msg.message == WM_KEYUP || msg.message == WM_SYSKEYUP;
+}
+bool IsKeyRelease(const MSG& msg) {
+  return msg.message == WM_KEYUP || msg.message == WM_SYSKEYUP;
+}
+#elif defined(USE_X11)
+bool IsKeyEvent(const XEvent* xev) {
+  return xev->type == KeyPress || xev->type == KeyRelease;
+}
+bool IsKeyRelease(const XEvent* xev) {
+  return xev->type == KeyRelease;
+}
+#endif
+
+}  // namespace
 
 AcceleratorDispatcher::AcceleratorDispatcher(
     MessageLoop::Dispatcher* nested_dispatcher, aura::Window* associated_window)
     : nested_dispatcher_(nested_dispatcher),
       associated_window_(associated_window) {
   DCHECK(nested_dispatcher_);
   associated_window_->AddObserver(this);
 }
 
 AcceleratorDispatcher::~AcceleratorDispatcher() {
   if (associated_window_)
     associated_window_->RemoveObserver(this);
 }
 
 void AcceleratorDispatcher::OnWindowDestroying(aura::Window* window) {
   if (associated_window_ == window)
     associated_window_ = NULL;
 }
 
+bool AcceleratorDispatcher::Dispatch(const base::NativeEvent& event) {
+  if (!associated_window_)
+    return false;
+  if (!ui::IsNoopEvent(event) && !associated_window_->CanReceiveEvents())
+    return aura::Env::GetInstance()->GetDispatcher()->Dispatch(event);
+
+  if (IsKeyEvent(event)) {
+    ash::AcceleratorController* accelerator_controller =
+        ash::Shell::GetInstance()->accelerator_controller();
+    if (accelerator_controller) {
+      ui::Accelerator accelerator(ui::KeyboardCodeFromNative(event),
+          ui::EventFlagsFromNative(event) & kModifierMask);
+      if (IsKeyRelease(event))
+        accelerator.set_type(ui::ET_KEY_RELEASED);
+      if (accelerator_controller->Process(accelerator))
+        return true;
+      accelerator.set_type(aura::TranslatedKeyEvent(event, false).type());
+      if (accelerator_controller->Process(accelerator))
+        return true;
+    }
+  }
+
+  return nested_dispatcher_->Dispatch(event);
+}
+
 }  // namespace ash