Begin to integrate Focus Manager. Add Windows accelerator handler implementation (commented out now due to lack of focus manager). Add some utilities to NativeWidget for obtaining NativeWidget from a NativeView.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/6286035

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@73479 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 131 insertions, 0 deletions

diff --git a/ui/views/focus/accelerator_handler.h b/ui/views/focus/accelerator_handler.h
new file mode 100644
index 0000000..3f129ba
--- /dev/null
+++ b/ui/views/focus/accelerator_handler.h
@@ -0,0 +1,71 @@
+// Copyright (c) 2011 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.
+
+#ifndef UI_VIEWS_FOCUS_ACCELERATOR_HANDLER_H_
+#define UI_VIEWS_FOCUS_ACCELERATOR_HANDLER_H_
+#pragma once
+
+#include "build/build_config.h"
+
+#if defined(OS_LINUX)
+#include <gdk/gdk.h>
+#endif
+
+#include <set>
+#include <vector>
+
+#include "base/message_loop.h"
+
+namespace ui {
+
+#if defined(TOUCH_UI)
+// Dispatch an XEvent to the RootView. Return true if the event was dispatched
+// and handled, false otherwise.
+bool DispatchXEvent(XEvent* xevent);
+
+#if defined(HAVE_XINPUT2)
+// Keep a list of touch devices so that it is possible to determine if a pointer
+// event is a touch-event or a mouse-event.
+void SetTouchDeviceList(std::vector<unsigned int>& devices);
+#endif  // HAVE_XINPUT2
+#endif  // TOUCH_UI
+
+////////////////////////////////////////////////////////////////////////////////
+// AcceleratorHandler class
+//
+//  An object that pre-screens all UI messages for potential accelerators.
+//  Registered accelerators are processed regardless of focus within a given
+//  Widget or Window.
+//
+//  This processing is done at the Dispatcher level rather than on the Widget
+//  because of the global nature of this processing, and the fact that not all
+//  controls within a window need to be Widgets - some are native controls from
+//  the underlying toolkit wrapped by NativeViewHost.
+//
+class AcceleratorHandler : public MessageLoopForUI::Dispatcher {
+ public:
+   AcceleratorHandler();
+  // Dispatcher method. This returns true if an accelerator was processed by the
+  // focus manager
+#if defined(OS_WIN)
+  virtual bool Dispatch(const MSG& msg);
+#else
+  virtual bool Dispatch(GdkEvent* event);
+#if defined(TOUCH_UI)
+  virtual MessagePumpGlibXDispatcher::DispatchStatus Dispatch(XEvent* xev);
+#endif
+#endif
+
+ private:
+#if defined(OS_WIN)
+  // The keys currently pressed and consumed by the FocusManager.
+  std::set<WPARAM> pressed_keys_;
+#endif
+
+  DISALLOW_COPY_AND_ASSIGN(AcceleratorHandler);
+};
+
+}  // namespace ui
+
+#endif  // UI_VIEWS_FOCUS_ACCELERATOR_HANDLER_H_
diff --git a/ui/views/focus/accelerator_handler_win.cc b/ui/views/focus/accelerator_handler_win.cc
new file mode 100644
index 0000000..02bd097
--- /dev/null
+++ b/ui/views/focus/accelerator_handler_win.cc
@@ -0,0 +1,60 @@
+// Copyright (c) 2011 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/views/focus/accelerator_handler.h"
+
+#include "ui/base/keycodes/keyboard_codes.h"
+#include "ui/base/keycodes/keyboard_code_conversion_win.h"
+#include "ui/views/events/event.h"
+//#include "ui/views/focus/focus_manager.h"
+
+namespace ui {
+
+AcceleratorHandler::AcceleratorHandler() {
+}
+
+bool AcceleratorHandler::Dispatch(const MSG& msg) {
+  bool process_message = true;
+
+  if (msg.message >= WM_KEYFIRST && msg.message <= WM_KEYLAST) {
+    /*
+    FocusManager* focus_manager =
+        FocusManager::GetFocusManagerForNativeView(msg.hwnd);
+    if (focus_manager) {
+      switch (msg.message) {
+        case WM_KEYDOWN:
+        case WM_SYSKEYDOWN: {
+          process_message = focus_manager->OnKeyEvent(KeyEvent(msg));
+          if (!process_message) {
+            // Record that this key is pressed so we can remember not to
+            // translate and dispatch the associated WM_KEYUP.
+            pressed_keys_.insert(msg.wParam);
+          }
+          break;
+        }
+        case WM_KEYUP:
+        case WM_SYSKEYUP: {
+          std::set<WPARAM>::iterator iter = pressed_keys_.find(msg.wParam);
+          if (iter != pressed_keys_.end()) {
+            // Don't translate/dispatch the KEYUP since we have eaten the
+            // associated KEYDOWN.
+            pressed_keys_.erase(iter);
+            return true;
+          }
+          break;
+        }
+      }
+    }
+    */
+  }
+
+  if (process_message) {
+    TranslateMessage(&msg);
+    DispatchMessage(&msg);
+  }
+
+  return true;
+}
+
+}  // namespace ui