src/mojo/services/native_viewport/platform_viewport_x11.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/platform_viewport.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "mojo/services/public/cpp/input_events/lib/mojo_extended_key_event_data.h"
  10 #include "ui/events/event.h"
  11 #include "ui/events/event_utils.h"
  12 #include "ui/events/platform/platform_event_dispatcher.h"
  13 #include "ui/events/platform/platform_event_source.h"
  14 #include "ui/gfx/rect.h"
  15 #include "ui/platform_window/platform_window.h"
  16 #include "ui/platform_window/platform_window_delegate.h"
  17 #include "ui/platform_window/x11/x11_window.h"
  18
  19 namespace mojo {
  20
  21 class PlatformViewportX11 : public PlatformViewport,
  22                             public ui::PlatformWindowDelegate {
  23  public:
  24   explicit PlatformViewportX11(Delegate* delegate) : delegate_(delegate) {
  25   }
  26
  27   virtual ~PlatformViewportX11() {
  28     // Destroy the platform-window while |this| is still alive.
  29     platform_window_.reset();
  30   }
  31
  32  private:
  33   // Overridden from PlatformViewport:
  34   virtual void Init(const gfx::Rect& bounds) OVERRIDE {
  35     CHECK(!event_source_);
  36     CHECK(!platform_window_);
  37
  38     event_source_ = ui::PlatformEventSource::CreateDefault();
  39
  40     platform_window_.reset(new ui::X11Window(this));
  41     platform_window_->SetBounds(bounds);
  42   }
  43
  44   virtual void Show() OVERRIDE {
  45     platform_window_->Show();
  46   }
  47
  48   virtual void Hide() OVERRIDE {
  49     platform_window_->Hide();
  50   }
  51
  52   virtual void Close() OVERRIDE {
  53     platform_window_->Close();
  54   }
  55
  56   virtual gfx::Size GetSize() OVERRIDE {
  57     return bounds_.size();
  58   }
  59
  60   virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE {
  61     platform_window_->SetBounds(bounds);
  62   }
  63
  64   virtual void SetCapture() OVERRIDE {
  65     platform_window_->SetCapture();
  66   }
  67
  68   virtual void ReleaseCapture() OVERRIDE {
  69     platform_window_->ReleaseCapture();
  70   }
  71
  72   // ui::PlatformWindowDelegate:
  73   virtual void OnBoundsChanged(const gfx::Rect& new_bounds) OVERRIDE {
  74     bounds_ = new_bounds;
  75     delegate_->OnBoundsChanged(new_bounds);
  76   }
  77
  78   virtual void OnDamageRect(const gfx::Rect& damaged_region) OVERRIDE {
  79   }
  80
  81   virtual void DispatchEvent(ui::Event* event) OVERRIDE {
  82     delegate_->OnEvent(event);
  83
  84     // We want to emulate the WM_CHAR generation behaviour of Windows.
  85     //
  86     // On Linux, we've previously inserted characters by having
  87     // InputMethodAuraLinux take all key down events and send a character event
  88     // to the TextInputClient. This causes a mismatch in code that has to be
  89     // shared between Windows and Linux, including blink code. Now that we're
  90     // trying to have one way of doing things, we need to standardize on and
  91     // emulate Windows character events.
  92     //
  93     // This is equivalent to what we're doing in the current Linux port, but
  94     // done once instead of done multiple times in different places.
  95     if (event->type() == ui::ET_KEY_PRESSED) {
  96       ui::KeyEvent* key_press_event = static_cast<ui::KeyEvent*>(event);
  97       ui::KeyEvent char_event(key_press_event->GetCharacter(),
  98                               key_press_event->key_code(),
  99                               key_press_event->flags());
 100
 101       DCHECK_EQ(key_press_event->GetCharacter(), char_event.GetCharacter());
 102       DCHECK_EQ(key_press_event->key_code(), char_event.key_code());
 103       DCHECK_EQ(key_press_event->flags(), char_event.flags());
 104
 105       char_event.SetExtendedKeyEventData(scoped_ptr<ui::ExtendedKeyEventData>(
 106           new MojoExtendedKeyEventData(
 107               key_press_event->GetLocatedWindowsKeyboardCode(),
 108               key_press_event->GetText(),
 109               key_press_event->GetUnmodifiedText())));
 110       char_event.set_platform_keycode(key_press_event->platform_keycode());
 111
 112       delegate_->OnEvent(&char_event);
 113     }
 114   }
 115
 116   virtual void OnCloseRequest() OVERRIDE {
 117     platform_window_->Close();
 118   }
 119
 120   virtual void OnClosed() OVERRIDE {
 121     delegate_->OnDestroyed();
 122   }
 123
 124   virtual void OnWindowStateChanged(ui::PlatformWindowState state) OVERRIDE {
 125   }
 126
 127   virtual void OnLostCapture() OVERRIDE {
 128   }
 129
 130   virtual void OnAcceleratedWidgetAvailable(
 131       gfx::AcceleratedWidget widget) OVERRIDE {
 132     delegate_->OnAcceleratedWidgetAvailable(widget);
 133   }
 134
 135   virtual void OnActivationChanged(bool active) OVERRIDE {}
 136
 137   scoped_ptr<ui::PlatformEventSource> event_source_;
 138   scoped_ptr<ui::PlatformWindow> platform_window_;
 139   Delegate* delegate_;
 140   gfx::Rect bounds_;
 141
 142   DISALLOW_COPY_AND_ASSIGN(PlatformViewportX11);
 143 };
 144
 145 // static
 146 scoped_ptr<PlatformViewport> PlatformViewport::Create(Delegate* delegate) {
 147   return scoped_ptr<PlatformViewport>(new PlatformViewportX11(delegate)).Pass();
 148 }
 149
 150 }  // namespace mojo