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 "ash/ime/input_method_event_handler.h"
  14 #include "base/command_line.h"
  15 #include "base/win/windows_version.h"
  16 #include "ui/aura/window_tree_host_win.h"
  17 #include "ui/gfx/geometry/insets.h"
  18 #include "ui/gfx/transform.h"
  19
  20 namespace ash {
  21 namespace {
  22
  23 class AshWindowTreeHostWin : public AshWindowTreeHost,
  24                              public aura::WindowTreeHostWin {
  25  public:
  26   explicit AshWindowTreeHostWin(const gfx::Rect& initial_bounds)
  27       : aura::WindowTreeHostWin(initial_bounds),
  28         fullscreen_(false),
  29         saved_window_style_(0),
  30         saved_window_ex_style_(0),
  31         transformer_helper_(this) {
  32     transformer_helper_.Init();
  33   }
  34   ~AshWindowTreeHostWin() override {}
  35
  36  private:
  37   // AshWindowTreeHost:
  38   void ToggleFullScreen() override {
  39     gfx::Rect target_rect;
  40     if (!fullscreen_) {
  41       fullscreen_ = true;
  42       saved_window_style_ = GetWindowLong(hwnd(), GWL_STYLE);
  43       saved_window_ex_style_ = GetWindowLong(hwnd(), GWL_EXSTYLE);
  44       GetWindowRect(hwnd(), &saved_window_rect_);
  45       SetWindowLong(hwnd(),
  46                     GWL_STYLE,
  47                     saved_window_style_ & ~(WS_CAPTION | WS_THICKFRAME));
  48       SetWindowLong(
  49           hwnd(),
  50           GWL_EXSTYLE,
  51           saved_window_ex_style_ & ~(WS_EX_DLGMODALFRAME | WS_EX_WINDOWEDGE |
  52                                      WS_EX_CLIENTEDGE | WS_EX_STATICEDGE));
  53
  54       MONITORINFO mi;
  55       mi.cbSize = sizeof(mi);
  56       GetMonitorInfo(MonitorFromWindow(hwnd(), MONITOR_DEFAULTTONEAREST), &mi);
  57       target_rect = gfx::Rect(mi.rcMonitor);
  58     } else {
  59       fullscreen_ = false;
  60       SetWindowLong(hwnd(), GWL_STYLE, saved_window_style_);
  61       SetWindowLong(hwnd(), GWL_EXSTYLE, saved_window_ex_style_);
  62       target_rect = gfx::Rect(saved_window_rect_);
  63     }
  64     SetWindowPos(hwnd(),
  65                  NULL,
  66                  target_rect.x(),
  67                  target_rect.y(),
  68                  target_rect.width(),
  69                  target_rect.height(),
  70                  SWP_NOZORDER | SWP_NOACTIVATE | SWP_FRAMECHANGED);
  71   }
  72   bool ConfineCursorToRootWindow() override { return false; }
  73   void UnConfineCursor() override { NOTIMPLEMENTED(); }
  74   void SetRootWindowTransformer(
  75       scoped_ptr<RootWindowTransformer> transformer) override {
  76     transformer_helper_.SetRootWindowTransformer(transformer.Pass());
  77   }
  78   gfx::Insets GetHostInsets() const override {
  79     return transformer_helper_.GetHostInsets();
  80   }
  81   aura::WindowTreeHost* AsWindowTreeHost() override { return this; }
  82
  83   // WindowTreeHostWin:
  84   void SetBounds(const gfx::Rect& bounds) override {
  85     if (fullscreen_) {
  86       saved_window_rect_.right = saved_window_rect_.left + bounds.width();
  87       saved_window_rect_.bottom = saved_window_rect_.top + bounds.height();
  88       return;
  89     }
  90     WindowTreeHostWin::SetBounds(bounds);
  91   }
  92   void SetRootTransform(const gfx::Transform& transform) override {
  93     transformer_helper_.SetTransform(transform);
  94   }
  95   gfx::Transform GetRootTransform() const override {
  96     return transformer_helper_.GetTransform();
  97   }
  98   gfx::Transform GetInverseRootTransform() const override {
  99     return transformer_helper_.GetInverseTransform();
 100   }
 101   void UpdateRootWindowSize(const gfx::Size& host_size) override {
 102     transformer_helper_.UpdateWindowSize(host_size);
 103   }
 104
 105   // ui::internal::InputMethodDelegate:
 106   bool DispatchKeyEventPostIME(const ui::KeyEvent& event) override {
 107     ui::KeyEvent event_copy(event);
 108     input_method_handler()->SetPostIME(true);
 109     ui::EventSource::DeliverEventToProcessor(&event_copy);
 110     input_method_handler()->SetPostIME(false);
 111     return event_copy.handled();
 112   }
 113
 114   // ui::EventSource:
 115   ui::EventDispatchDetails DeliverEventToProcessor(ui::Event* event) override {
 116     return ui::EventSource::DeliverEventToProcessor(event);
 117   }
 118
 119   bool fullscreen_;
 120   RECT saved_window_rect_;
 121   DWORD saved_window_style_;
 122   DWORD saved_window_ex_style_;
 123
 124   TransformerHelper transformer_helper_;
 125
 126   DISALLOW_COPY_AND_ASSIGN(AshWindowTreeHostWin);
 127 };
 128
 129 }  // namespace
 130
 131 AshWindowTreeHost* AshWindowTreeHost::Create(
 132     const AshWindowTreeHostInitParams& init_params) {
 133   if (base::win::GetVersion() >= base::win::VERSION_WIN7 &&
 134       !base::CommandLine::ForCurrentProcess()->HasSwitch(
 135           ash::switches::kForceAshToDesktop))
 136     return new AshRemoteWindowTreeHostWin(init_params.remote_hwnd);
 137
 138   return new AshWindowTreeHostWin(init_params.initial_bounds);
 139 }
 140
 141 }  // namespace ash