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| 1 // Copyright (c) 2012 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 #ifndef UI_AURA_REMOTE_WINDOW_TREE_HOST_WIN_H_ | |
| 6 #define UI_AURA_REMOTE_WINDOW_TREE_HOST_WIN_H_ | |
| 7 | |
| 8 #include <vector> | |
| 9 | |
| 10 #include "base/compiler_specific.h" | |
| 11 #include "base/strings/string16.h" | |
| 12 #include "ui/aura/window_tree_host.h" | |
| 13 #include "ui/base/ime/remote_input_method_delegate_win.h" | |
| 14 #include "ui/events/event.h" | |
| 15 #include "ui/events/event_constants.h" | |
| 16 #include "ui/events/event_source.h" | |
| 17 #include "ui/gfx/native_widget_types.h" | |
| 18 #include "ui/metro_viewer/ime_types.h" | |
| 19 | |
| 20 struct MetroViewerHostMsg_MouseButtonParams; | |
| 21 | |
| 22 namespace base { | |
| 23 class FilePath; | |
| 24 } | |
| 25 | |
| 26 namespace ui { | |
| 27 class RemoteInputMethodPrivateWin; | |
| 28 class ViewProp; | |
| 29 } | |
| 30 | |
| 31 namespace IPC { | |
| 32 class Message; | |
| 33 class Sender; | |
| 34 } | |
| 35 | |
| 36 namespace aura { | |
| 37 | |
| 38 // WindowTreeHost implementaton that receives events from a different | |
| 39 // process. In the case of Windows this is the Windows 8 (aka Metro) | |
| 40 // frontend process, which forwards input events to this class. | |
| 41 class AURA_EXPORT RemoteWindowTreeHostWin | |
| 42 : public WindowTreeHost, | |
| 43 public ui::EventSource, | |
| 44 public ui::internal::RemoteInputMethodDelegateWin { | |
| 45 public: | |
| 46 // Returns the current RemoteWindowTreeHostWin. This does *not* create a | |
| 47 // RemoteWindowTreeHostWin. | |
| 48 static RemoteWindowTreeHostWin* Instance(); | |
| 49 | |
| 50 // Returns true if there is a RemoteWindowTreeHostWin and it has a valid | |
| 51 // HWND. A return value of false typically indicates we're not in metro mode. | |
| 52 static bool IsValid(); | |
| 53 | |
| 54 // Sets the handle to the remote window. The |remote_window| is the actual | |
| 55 // window owned by the viewer process. Call this before Connected() for some | |
| 56 // customers like input method initialization which needs the handle. | |
| 57 void SetRemoteWindowHandle(HWND remote_window); | |
| 58 HWND remote_window() { return remote_window_; } | |
| 59 | |
| 60 // The |host| can be used when we need to send a message to it. | |
| 61 void Connected(IPC::Sender* host); | |
| 62 // Called when the remote process has closed its IPC connection. | |
| 63 void Disconnected(); | |
| 64 | |
| 65 // Called when we have a message from the remote process. | |
| 66 bool OnMessageReceived(const IPC::Message& message); | |
| 67 | |
| 68 void HandleOpenURLOnDesktop(const base::FilePath& shortcut, | |
| 69 const base::string16& url); | |
| 70 | |
| 71 void HandleWindowSizeChanged(uint32 width, uint32 height); | |
| 72 | |
| 73 // Returns the active ASH root window. | |
| 74 Window* GetAshWindow(); | |
| 75 | |
| 76 // Returns true if the remote window is the foreground window according to the | |
| 77 // OS. | |
| 78 bool IsForegroundWindow(); | |
| 79 | |
| 80 protected: | |
| 81 RemoteWindowTreeHostWin(); | |
| 82 virtual ~RemoteWindowTreeHostWin(); | |
| 83 | |
| 84 private: | |
| 85 // IPC message handing methods: | |
| 86 void OnMouseMoved(int32 x, int32 y, int32 flags); | |
| 87 void OnMouseButton(const MetroViewerHostMsg_MouseButtonParams& params); | |
| 88 void OnKeyDown(uint32 vkey, | |
| 89 uint32 repeat_count, | |
| 90 uint32 scan_code, | |
| 91 uint32 flags); | |
| 92 void OnKeyUp(uint32 vkey, | |
| 93 uint32 repeat_count, | |
| 94 uint32 scan_code, | |
| 95 uint32 flags); | |
| 96 void OnChar(uint32 key_code, | |
| 97 uint32 repeat_count, | |
| 98 uint32 scan_code, | |
| 99 uint32 flags); | |
| 100 void OnWindowActivated(bool repaint); | |
| 101 void OnEdgeGesture(); | |
| 102 void OnTouchDown(int32 x, int32 y, uint64 timestamp, uint32 pointer_id); | |
| 103 void OnTouchUp(int32 x, int32 y, uint64 timestamp, uint32 pointer_id); | |
| 104 void OnTouchMoved(int32 x, int32 y, uint64 timestamp, uint32 pointer_id); | |
| 105 void OnSetCursorPosAck(); | |
| 106 | |
| 107 // For Input Method support: | |
| 108 ui::RemoteInputMethodPrivateWin* GetRemoteInputMethodPrivate(); | |
| 109 void OnImeCandidatePopupChanged(bool visible); | |
| 110 void OnImeCompositionChanged( | |
| 111 const base::string16& text, | |
| 112 int32 selection_start, | |
| 113 int32 selection_end, | |
| 114 const std::vector<metro_viewer::UnderlineInfo>& underlines); | |
| 115 void OnImeTextCommitted(const base::string16& text); | |
| 116 void OnImeInputSourceChanged(uint16 language_id, bool is_ime); | |
| 117 | |
| 118 // WindowTreeHost overrides: | |
| 119 virtual ui::EventSource* GetEventSource() override; | |
| 120 virtual gfx::AcceleratedWidget GetAcceleratedWidget() override; | |
| 121 virtual void Show() override; | |
| 122 virtual void Hide() override; | |
| 123 virtual gfx::Rect GetBounds() const override; | |
| 124 virtual void SetBounds(const gfx::Rect& bounds) override; | |
| 125 virtual gfx::Point GetLocationOnNativeScreen() const override; | |
| 126 virtual void SetCapture() override; | |
| 127 virtual void ReleaseCapture() override; | |
| 128 virtual void PostNativeEvent(const base::NativeEvent& native_event) override; | |
| 129 virtual void SetCursorNative(gfx::NativeCursor cursor) override; | |
| 130 virtual void MoveCursorToNative(const gfx::Point& location) override; | |
| 131 virtual void OnCursorVisibilityChangedNative(bool show) override; | |
| 132 | |
| 133 // ui::EventSource: | |
| 134 virtual ui::EventProcessor* GetEventProcessor() override; | |
| 135 | |
| 136 // ui::internal::RemoteInputMethodDelegateWin overrides: | |
| 137 virtual void CancelComposition() override; | |
| 138 virtual void OnTextInputClientUpdated( | |
| 139 const std::vector<int32>& input_scopes, | |
| 140 const std::vector<gfx::Rect>& composition_character_bounds) override; | |
| 141 | |
| 142 // Helper function to dispatch a keyboard message to the desired target. | |
| 143 // The default target is the WindowEventDispatcher. For nested message loop | |
| 144 // invocations we post a synthetic keyboard message directly into the message | |
| 145 // loop. The dispatcher for the nested loop would then decide how this | |
| 146 // message is routed. | |
| 147 void DispatchKeyboardMessage(ui::EventType type, | |
| 148 uint32 vkey, | |
| 149 uint32 repeat_count, | |
| 150 uint32 scan_code, | |
| 151 uint32 flags, | |
| 152 bool is_character); | |
| 153 | |
| 154 // Sets the event flags. |flags| is a bitmask of EventFlags. If there is a | |
| 155 // change the system virtual key state is updated as well. This way if chrome | |
| 156 // queries for key state it matches that of event being dispatched. | |
| 157 void SetEventFlags(uint32 flags); | |
| 158 | |
| 159 uint32 mouse_event_flags() const { | |
| 160 return event_flags_ & (ui::EF_LEFT_MOUSE_BUTTON | | |
| 161 ui::EF_MIDDLE_MOUSE_BUTTON | | |
| 162 ui::EF_RIGHT_MOUSE_BUTTON); | |
| 163 } | |
| 164 | |
| 165 uint32 key_event_flags() const { | |
| 166 return event_flags_ & (ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN | | |
| 167 ui::EF_ALT_DOWN | ui::EF_CAPS_LOCK_DOWN); | |
| 168 } | |
| 169 | |
| 170 HWND remote_window_; | |
| 171 IPC::Sender* host_; | |
| 172 scoped_ptr<ui::ViewProp> prop_; | |
| 173 | |
| 174 // Incremented if we need to ignore mouse messages until the SetCursorPos | |
| 175 // operation is acked by the viewer. | |
| 176 int ignore_mouse_moves_until_set_cursor_ack_; | |
| 177 | |
| 178 // Tracking last click event for synthetically generated mouse events. | |
| 179 scoped_ptr<ui::MouseEvent> last_mouse_click_event_; | |
| 180 | |
| 181 // State of the keyboard/mouse at the time of the last input event. See | |
| 182 // description of SetEventFlags(). | |
| 183 uint32 event_flags_; | |
| 184 | |
| 185 // Current size of this root window. | |
| 186 gfx::Size window_size_; | |
| 187 | |
| 188 DISALLOW_COPY_AND_ASSIGN(RemoteWindowTreeHostWin); | |
| 189 }; | |
| 190 | |
| 191 } // namespace aura | |
| 192 | |
| 193 #endif // UI_AURA_REMOTE_WINDOW_TREE_HOST_WIN_H_ | |
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