NativeViewport

mojo/services/native_viewport/native_viewport_win.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 "mojo/services/native_viewport/native_viewport.h"
+#include "ui/events/event.h"
+#include "ui/gfx/win/window_impl.h"
+
+namespace mojo {
+namespace services {
+
+class NativeViewportWin : public gfx::WindowImpl,
+                          public NativeViewport {
+ public:
+  explicit NativeViewportWin(NativeViewportDelegate* delegate)
+      : delegate_(delegate) {
+    Init(NULL, gfx::Rect(10, 10, 500, 500));
+    ShowWindow(hwnd(), SW_SHOWNORMAL);
+    SetWindowText(hwnd(), L"native_viewport::NativeViewportWin!");
+  }
+  virtual ~NativeViewportWin() {
+    if (IsWindow(hwnd()))
+      DestroyWindow(hwnd());
+  }
+
+ private:
+  // Overridden from NativeViewport:
+  virtual void Close() OVERRIDE {
+    DestroyWindow(hwnd());
+  }
+
+  BEGIN_MSG_MAP_EX(NativeViewportWin)
+    MESSAGE_RANGE_HANDLER_EX(WM_MOUSEFIRST, WM_MOUSELAST, OnMouseRange)
+
+    MSG_WM_PAINT(OnPaint)
+    MSG_WM_SIZE(OnSize)
+    MSG_WM_DESTROY(OnDestroy)
+  END_MSG_MAP()
+
+  LRESULT OnMouseRange(UINT message, WPARAM w_param, LPARAM l_param) {
+    MSG msg = { hwnd(), message, w_param, l_param, 0,
+                { GET_X_LPARAM(l_param), GET_Y_LPARAM(l_param) } };
+    ui::MouseEvent event(msg);
+    bool handled = delegate_->OnEvent(&event);
+    SetMsgHandled(handled);
+    return 0;
+  }
+  void OnPaint(HDC) {
+    RECT cr;
+    GetClientRect(hwnd(), &cr);
+
+    PAINTSTRUCT ps;
+    HDC dc = BeginPaint(hwnd(), &ps);
+    HBRUSH red_brush = CreateSolidBrush(RGB(255, 0, 0));
+    HGDIOBJ old_object = SelectObject(dc, red_brush);
+    Rectangle(dc, cr.left, cr.top, cr.right, cr.bottom);
+    SelectObject(dc, old_object);
+    DeleteObject(red_brush);
+    EndPaint(hwnd(), &ps);
+  }
+  void OnSize(UINT param, const CSize& size) {
+    delegate_->OnResized(gfx::Size(size.cx, size.cy));
+  }
+  void OnDestroy() {
+    delegate_->OnDestroyed();
+  }
+
+  NativeViewportDelegate* delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(NativeViewportWin);
+};
+
+// static
+scoped_ptr<NativeViewport> NativeViewport::Create(
+    NativeViewportDelegate* delegate) {
+  return scoped_ptr<NativeViewport>(new NativeViewportWin(delegate)).Pass();
+}
+
+}  // namespace services
+}  // namespace mojo