src/mojo/services/native_viewport/native_viewport_win.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "mojo/services/native_viewport/native_viewport.h"
   6 #include "ui/events/event.h"
   7 #include "ui/gfx/win/window_impl.h"
   8
   9 namespace mojo {
  10 namespace services {
  11
  12 class NativeViewportWin : public gfx::WindowImpl,
  13                           public NativeViewport {
  14  public:
  15   explicit NativeViewportWin(NativeViewportDelegate* delegate)
  16       : delegate_(delegate) {
  17     Init(NULL, gfx::Rect(10, 10, 500, 500));
  18     ShowWindow(hwnd(), SW_SHOWNORMAL);
  19     SetWindowText(hwnd(), L"native_viewport::NativeViewportWin!");
  20   }
  21   virtual ~NativeViewportWin() {
  22     if (IsWindow(hwnd()))
  23       DestroyWindow(hwnd());
  24   }
  25
  26  private:
  27   // Overridden from NativeViewport:
  28   virtual void Close() OVERRIDE {
  29     DestroyWindow(hwnd());
  30   }
  31
  32   BEGIN_MSG_MAP_EX(NativeViewportWin)
  33     MESSAGE_RANGE_HANDLER_EX(WM_MOUSEFIRST, WM_MOUSELAST, OnMouseRange)
  34
  35     MSG_WM_PAINT(OnPaint)
  36     MSG_WM_SIZE(OnSize)
  37     MSG_WM_DESTROY(OnDestroy)
  38   END_MSG_MAP()
  39
  40   LRESULT OnMouseRange(UINT message, WPARAM w_param, LPARAM l_param) {
  41     MSG msg = { hwnd(), message, w_param, l_param, 0,
  42                 { GET_X_LPARAM(l_param), GET_Y_LPARAM(l_param) } };
  43     ui::MouseEvent event(msg);
  44     bool handled = delegate_->OnEvent(&event);
  45     SetMsgHandled(handled);
  46     return 0;
  47   }
  48   void OnPaint(HDC) {
  49     RECT cr;
  50     GetClientRect(hwnd(), &cr);
  51
  52     PAINTSTRUCT ps;
  53     HDC dc = BeginPaint(hwnd(), &ps);
  54     HBRUSH red_brush = CreateSolidBrush(RGB(255, 0, 0));
  55     HGDIOBJ old_object = SelectObject(dc, red_brush);
  56     Rectangle(dc, cr.left, cr.top, cr.right, cr.bottom);
  57     SelectObject(dc, old_object);
  58     DeleteObject(red_brush);
  59     EndPaint(hwnd(), &ps);
  60   }
  61   void OnSize(UINT param, const CSize& size) {
  62     delegate_->OnResized(gfx::Size(size.cx, size.cy));
  63   }
  64   void OnDestroy() {
  65     delegate_->OnDestroyed();
  66   }
  67
  68   NativeViewportDelegate* delegate_;
  69
  70   DISALLOW_COPY_AND_ASSIGN(NativeViewportWin);
  71 };
  72
  73 // static
  74 scoped_ptr<NativeViewport> NativeViewport::Create(
  75     shell::Context* context,
  76     NativeViewportDelegate* delegate) {
  77   return scoped_ptr<NativeViewport>(new NativeViewportWin(delegate)).Pass();
  78 }
  79
  80 }  // namespace services
  81 }  // namespace mojo