ash/host/ash_window_tree_host_win.cc

   1 // Copyright 2014 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 "ash/host/ash_window_tree_host.h"
   6
   7 #include "ash/ash_export.h"
   8 #include "ash/ash_switches.h"
   9 #include "ash/host/ash_remote_window_tree_host_win.h"
  10 #include "ash/host/ash_window_tree_host_init_params.h"
  11 #include "ash/host/root_window_transformer.h"
  12 #include "ash/host/transformer_helper.h"
  13 #include "base/command_line.h"
  14 #include "base/win/windows_version.h"
  15 #include "ui/aura/window_tree_host_win.h"
  16 #include "ui/gfx/geometry/insets.h"
  17 #include "ui/gfx/transform.h"
  18
  19 namespace ash {
  20 namespace {
  21
  22 class AshWindowTreeHostWin : public AshWindowTreeHost,
  23                              public aura::WindowTreeHostWin {
  24  public:
  25   explicit AshWindowTreeHostWin(const gfx::Rect& initial_bounds)
  26       : aura::WindowTreeHostWin(initial_bounds),
  27         fullscreen_(false),
  28         saved_window_style_(0),
  29         saved_window_ex_style_(0),
  30         transformer_helper_(this) {}
  31   virtual ~AshWindowTreeHostWin() {}
  32
  33  private:
  34   // AshWindowTreeHost:
  35   virtual void ToggleFullScreen() override {
  36     gfx::Rect target_rect;
  37     if (!fullscreen_) {
  38       fullscreen_ = true;
  39       saved_window_style_ = GetWindowLong(hwnd(), GWL_STYLE);
  40       saved_window_ex_style_ = GetWindowLong(hwnd(), GWL_EXSTYLE);
  41       GetWindowRect(hwnd(), &saved_window_rect_);
  42       SetWindowLong(hwnd(),
  43                     GWL_STYLE,
  44                     saved_window_style_ & ~(WS_CAPTION | WS_THICKFRAME));
  45       SetWindowLong(
  46           hwnd(),
  47           GWL_EXSTYLE,
  48           saved_window_ex_style_ & ~(WS_EX_DLGMODALFRAME | WS_EX_WINDOWEDGE |
  49                                      WS_EX_CLIENTEDGE | WS_EX_STATICEDGE));
  50
  51       MONITORINFO mi;
  52       mi.cbSize = sizeof(mi);
  53       GetMonitorInfo(MonitorFromWindow(hwnd(), MONITOR_DEFAULTTONEAREST), &mi);
  54       target_rect = gfx::Rect(mi.rcMonitor);
  55     } else {
  56       fullscreen_ = false;
  57       SetWindowLong(hwnd(), GWL_STYLE, saved_window_style_);
  58       SetWindowLong(hwnd(), GWL_EXSTYLE, saved_window_ex_style_);
  59       target_rect = gfx::Rect(saved_window_rect_);
  60     }
  61     SetWindowPos(hwnd(),
  62                  NULL,
  63                  target_rect.x(),
  64                  target_rect.y(),
  65                  target_rect.width(),
  66                  target_rect.height(),
  67                  SWP_NOZORDER | SWP_NOACTIVATE | SWP_FRAMECHANGED);
  68   }
  69   virtual bool ConfineCursorToRootWindow() override { return false; }
  70   virtual void UnConfineCursor() override { NOTIMPLEMENTED(); }
  71   virtual void SetRootWindowTransformer(
  72       scoped_ptr<RootWindowTransformer> transformer) {
  73     transformer_helper_.SetRootWindowTransformer(transformer.Pass());
  74   }
  75   virtual gfx::Insets GetHostInsets() const override {
  76     return transformer_helper_.GetHostInsets();
  77   }
  78   virtual aura::WindowTreeHost* AsWindowTreeHost() override { return this; }
  79
  80   // WindowTreeHostWin:
  81   virtual void SetBounds(const gfx::Rect& bounds) override {
  82     if (fullscreen_) {
  83       saved_window_rect_.right = saved_window_rect_.left + bounds.width();
  84       saved_window_rect_.bottom = saved_window_rect_.top + bounds.height();
  85       return;
  86     }
  87     WindowTreeHostWin::SetBounds(bounds);
  88   }
  89   virtual void SetRootTransform(const gfx::Transform& transform) override {
  90     transformer_helper_.SetTransform(transform);
  91   }
  92   gfx::Transform GetRootTransform() const {
  93     return transformer_helper_.GetTransform();
  94   }
  95   virtual gfx::Transform GetInverseRootTransform() const override {
  96     return transformer_helper_.GetInverseTransform();
  97   }
  98   virtual void UpdateRootWindowSize(const gfx::Size& host_size) override {
  99     transformer_helper_.UpdateWindowSize(host_size);
 100   }
 101
 102   bool fullscreen_;
 103   RECT saved_window_rect_;
 104   DWORD saved_window_style_;
 105   DWORD saved_window_ex_style_;
 106
 107   TransformerHelper transformer_helper_;
 108
 109   DISALLOW_COPY_AND_ASSIGN(AshWindowTreeHostWin);
 110 };
 111
 112 }  // namespace
 113
 114 AshWindowTreeHost* AshWindowTreeHost::Create(
 115     const AshWindowTreeHostInitParams& init_params) {
 116   if (base::win::GetVersion() >= base::win::VERSION_WIN7 &&
 117       !base::CommandLine::ForCurrentProcess()->HasSwitch(
 118           ash::switches::kForceAshToDesktop))
 119     return new AshRemoteWindowTreeHostWin(init_params.remote_hwnd);
 120
 121   return new AshWindowTreeHostWin(init_params.initial_bounds);
 122 }
 123
 124 }  // namespace ash