| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ui/aura/remote_window_tree_host_win.h" |
| |
| #include <windows.h> |
| |
| #include <algorithm> |
| |
| #include "base/message_loop/message_loop.h" |
| #include "ipc/ipc_message.h" |
| #include "ipc/ipc_sender.h" |
| #include "ui/aura/client/aura_constants.h" |
| #include "ui/aura/client/cursor_client.h" |
| #include "ui/aura/window_event_dispatcher.h" |
| #include "ui/aura/window_property.h" |
| #include "ui/base/cursor/cursor_loader_win.h" |
| #include "ui/base/ime/composition_text.h" |
| #include "ui/base/ime/input_method.h" |
| #include "ui/base/ime/remote_input_method_win.h" |
| #include "ui/base/ime/text_input_client.h" |
| #include "ui/base/view_prop.h" |
| #include "ui/events/event_utils.h" |
| #include "ui/events/keycodes/keyboard_code_conversion_win.h" |
| #include "ui/gfx/insets.h" |
| #include "ui/gfx/win/dpi.h" |
| #include "ui/metro_viewer/metro_viewer_messages.h" |
| |
| namespace aura { |
| |
| namespace { |
| |
| const char* kWindowTreeHostWinKey = "__AURA_REMOTE_WINDOW_TREE_HOST_WIN__"; |
| |
| // Sets the keystate for the virtual key passed in to down or up. |
| void SetKeyState(uint8* key_states, bool key_down, uint32 virtual_key_code) { |
| DCHECK(key_states); |
| |
| if (key_down) |
| key_states[virtual_key_code] |= 0x80; |
| else |
| key_states[virtual_key_code] &= 0x7F; |
| } |
| |
| // Sets the keyboard states for the Shift/Control/Alt/Caps lock keys. |
| void SetVirtualKeyStates(uint32 flags) { |
| uint8 keyboard_state[256] = {0}; |
| ::GetKeyboardState(keyboard_state); |
| |
| SetKeyState(keyboard_state, !!(flags & ui::EF_SHIFT_DOWN), VK_SHIFT); |
| SetKeyState(keyboard_state, !!(flags & ui::EF_CONTROL_DOWN), VK_CONTROL); |
| SetKeyState(keyboard_state, !!(flags & ui::EF_ALT_DOWN), VK_MENU); |
| SetKeyState(keyboard_state, !!(flags & ui::EF_CAPS_LOCK_DOWN), VK_CAPITAL); |
| SetKeyState(keyboard_state, !!(flags & ui::EF_LEFT_MOUSE_BUTTON), VK_LBUTTON); |
| SetKeyState(keyboard_state, !!(flags & ui::EF_RIGHT_MOUSE_BUTTON), |
| VK_RBUTTON); |
| SetKeyState(keyboard_state, !!(flags & ui::EF_MIDDLE_MOUSE_BUTTON), |
| VK_MBUTTON); |
| |
| ::SetKeyboardState(keyboard_state); |
| } |
| |
| void FillCompositionText( |
| const base::string16& text, |
| int32 selection_start, |
| int32 selection_end, |
| const std::vector<metro_viewer::UnderlineInfo>& underlines, |
| ui::CompositionText* composition_text) { |
| composition_text->Clear(); |
| composition_text->text = text; |
| composition_text->selection.set_start(selection_start); |
| composition_text->selection.set_end(selection_end); |
| composition_text->underlines.resize(underlines.size()); |
| for (size_t i = 0; i < underlines.size(); ++i) { |
| composition_text->underlines[i].start_offset = underlines[i].start_offset; |
| composition_text->underlines[i].end_offset = underlines[i].end_offset; |
| composition_text->underlines[i].color = SK_ColorBLACK; |
| composition_text->underlines[i].thick = underlines[i].thick; |
| composition_text->underlines[i].background_color = SK_ColorTRANSPARENT; |
| } |
| } |
| |
| } // namespace |
| |
| RemoteWindowTreeHostWin* g_instance = NULL; |
| |
| // static |
| RemoteWindowTreeHostWin* RemoteWindowTreeHostWin::Instance() { |
| return g_instance; |
| } |
| |
| RemoteWindowTreeHostWin::RemoteWindowTreeHostWin() |
| : remote_window_(NULL), |
| host_(NULL), |
| ignore_mouse_moves_until_set_cursor_ack_(false), |
| event_flags_(0), |
| window_size_(aura::WindowTreeHost::GetNativeScreenSize()) { |
| CHECK(!g_instance); |
| g_instance = this; |
| prop_.reset(new ui::ViewProp(NULL, kWindowTreeHostWinKey, this)); |
| CreateCompositor(GetAcceleratedWidget()); |
| } |
| |
| RemoteWindowTreeHostWin::~RemoteWindowTreeHostWin() { |
| DestroyCompositor(); |
| DestroyDispatcher(); |
| DCHECK_EQ(g_instance, this); |
| g_instance = NULL; |
| } |
| |
| // static |
| bool RemoteWindowTreeHostWin::IsValid() { |
| return Instance()->remote_window_ != NULL; |
| } |
| |
| void RemoteWindowTreeHostWin::SetRemoteWindowHandle(HWND remote_window) { |
| remote_window_ = remote_window; |
| } |
| |
| void RemoteWindowTreeHostWin::Connected(IPC::Sender* host) { |
| CHECK(host_ == NULL); |
| DCHECK(remote_window_); |
| host_ = host; |
| // Recreate the compositor for the target surface represented by the |
| // remote_window HWND. |
| CreateCompositor(remote_window_); |
| InitCompositor(); |
| } |
| |
| void RemoteWindowTreeHostWin::Disconnected() { |
| // Don't CHECK here, Disconnected is called on a channel error which can |
| // happen before we're successfully Connected. |
| if (!host_) |
| return; |
| ui::RemoteInputMethodPrivateWin* remote_input_method_private = |
| GetRemoteInputMethodPrivate(); |
| if (remote_input_method_private) |
| remote_input_method_private->SetRemoteDelegate(NULL); |
| host_ = NULL; |
| remote_window_ = NULL; |
| } |
| |
| bool RemoteWindowTreeHostWin::OnMessageReceived(const IPC::Message& message) { |
| bool handled = true; |
| IPC_BEGIN_MESSAGE_MAP(RemoteWindowTreeHostWin, message) |
| IPC_MESSAGE_HANDLER(MetroViewerHostMsg_MouseMoved, OnMouseMoved) |
| IPC_MESSAGE_HANDLER(MetroViewerHostMsg_MouseButton, OnMouseButton) |
| IPC_MESSAGE_HANDLER(MetroViewerHostMsg_KeyDown, OnKeyDown) |
| IPC_MESSAGE_HANDLER(MetroViewerHostMsg_KeyUp, OnKeyUp) |
| IPC_MESSAGE_HANDLER(MetroViewerHostMsg_Character, OnChar) |
| IPC_MESSAGE_HANDLER(MetroViewerHostMsg_WindowActivated, |
| OnWindowActivated) |
| IPC_MESSAGE_HANDLER(MetroViewerHostMsg_EdgeGesture, OnEdgeGesture) |
| IPC_MESSAGE_HANDLER(MetroViewerHostMsg_TouchDown, |
| OnTouchDown) |
| IPC_MESSAGE_HANDLER(MetroViewerHostMsg_TouchUp, |
| OnTouchUp) |
| IPC_MESSAGE_HANDLER(MetroViewerHostMsg_TouchMoved, |
| OnTouchMoved) |
| IPC_MESSAGE_HANDLER(MetroViewerHostMsg_SetCursorPosAck, |
| OnSetCursorPosAck) |
| IPC_MESSAGE_HANDLER(MetroViewerHostMsg_ImeCandidatePopupChanged, |
| OnImeCandidatePopupChanged) |
| IPC_MESSAGE_HANDLER(MetroViewerHostMsg_ImeCompositionChanged, |
| OnImeCompositionChanged) |
| IPC_MESSAGE_HANDLER(MetroViewerHostMsg_ImeTextCommitted, |
| OnImeTextCommitted) |
| IPC_MESSAGE_HANDLER(MetroViewerHostMsg_ImeInputSourceChanged, |
| OnImeInputSourceChanged) |
| IPC_MESSAGE_UNHANDLED(handled = false) |
| IPC_END_MESSAGE_MAP() |
| return handled; |
| } |
| |
| void RemoteWindowTreeHostWin::HandleOpenURLOnDesktop( |
| const base::FilePath& shortcut, |
| const base::string16& url) { |
| if (!host_) |
| return; |
| host_->Send(new MetroViewerHostMsg_OpenURLOnDesktop(shortcut, url)); |
| } |
| |
| void RemoteWindowTreeHostWin::HandleWindowSizeChanged(uint32 width, |
| uint32 height) { |
| SetBounds(gfx::Rect(0, 0, width, height)); |
| } |
| |
| bool RemoteWindowTreeHostWin::IsForegroundWindow() { |
| return ::GetForegroundWindow() == remote_window_; |
| } |
| |
| Window* RemoteWindowTreeHostWin::GetAshWindow() { |
| return window(); |
| } |
| |
| ui::EventSource* RemoteWindowTreeHostWin::GetEventSource() { |
| return this; |
| } |
| |
| gfx::AcceleratedWidget RemoteWindowTreeHostWin::GetAcceleratedWidget() { |
| if (remote_window_) |
| return remote_window_; |
| // Getting here should only happen for ash_unittests.exe and related code. |
| return ::GetDesktopWindow(); |
| } |
| |
| void RemoteWindowTreeHostWin::Show() { |
| ui::RemoteInputMethodPrivateWin* remote_input_method_private = |
| GetRemoteInputMethodPrivate(); |
| if (remote_input_method_private) |
| remote_input_method_private->SetRemoteDelegate(this); |
| } |
| |
| void RemoteWindowTreeHostWin::Hide() { |
| NOTIMPLEMENTED(); |
| } |
| |
| gfx::Rect RemoteWindowTreeHostWin::GetBounds() const { |
| return gfx::Rect(window_size_); |
| } |
| |
| void RemoteWindowTreeHostWin::SetBounds(const gfx::Rect& bounds) { |
| window_size_ = bounds.size(); |
| OnHostResized(bounds.size()); |
| } |
| |
| gfx::Point RemoteWindowTreeHostWin::GetLocationOnNativeScreen() const { |
| return gfx::Point(0, 0); |
| } |
| |
| void RemoteWindowTreeHostWin::SetCapture() { |
| } |
| |
| void RemoteWindowTreeHostWin::ReleaseCapture() { |
| } |
| |
| void RemoteWindowTreeHostWin::SetCursorNative(gfx::NativeCursor native_cursor) { |
| if (!host_) |
| return; |
| host_->Send( |
| new MetroViewerHostMsg_SetCursor(uint64(native_cursor.platform()))); |
| } |
| |
| void RemoteWindowTreeHostWin::MoveCursorToNative(const gfx::Point& location) { |
| VLOG(1) << "In MoveCursorTo: " << location.x() << ", " << location.y(); |
| if (!host_) |
| return; |
| |
| // This function can be called in cases like when the mouse cursor is |
| // restricted within a viewport (For e.g. LockCursor) which assumes that |
| // subsequent mouse moves would be received starting with the new cursor |
| // coordinates. This is a challenge for Windows ASH for the reasons |
| // outlined below. |
| // Other cases which don't expect this behavior should continue to work |
| // without issues. |
| |
| // The mouse events are received by the viewer process and sent to the |
| // browser. If we invoke the SetCursor API here we continue to receive |
| // mouse messages from the viewer which were posted before the SetCursor |
| // API executes which messes up the state in the browser. To workaround |
| // this we invoke the SetCursor API in the viewer process and ignore |
| // mouse messages until we received an ACK from the viewer indicating that |
| // the SetCursor operation completed. |
| ignore_mouse_moves_until_set_cursor_ack_ = true; |
| VLOG(1) << "In MoveCursorTo. Sending IPC"; |
| host_->Send(new MetroViewerHostMsg_SetCursorPos(location.x(), location.y())); |
| } |
| |
| void RemoteWindowTreeHostWin::OnCursorVisibilityChangedNative(bool show) { |
| NOTIMPLEMENTED(); |
| } |
| |
| void RemoteWindowTreeHostWin::PostNativeEvent( |
| const base::NativeEvent& native_event) { |
| } |
| |
| void RemoteWindowTreeHostWin::OnDeviceScaleFactorChanged( |
| float device_scale_factor) { |
| NOTIMPLEMENTED(); |
| } |
| |
| ui::EventProcessor* RemoteWindowTreeHostWin::GetEventProcessor() { |
| return dispatcher(); |
| } |
| |
| void RemoteWindowTreeHostWin::CancelComposition() { |
| if (!host_) |
| return; |
| host_->Send(new MetroViewerHostMsg_ImeCancelComposition); |
| } |
| |
| void RemoteWindowTreeHostWin::OnTextInputClientUpdated( |
| const std::vector<int32>& input_scopes, |
| const std::vector<gfx::Rect>& composition_character_bounds) { |
| if (!host_) |
| return; |
| std::vector<metro_viewer::CharacterBounds> character_bounds; |
| for (size_t i = 0; i < composition_character_bounds.size(); ++i) { |
| const gfx::Rect& rect = composition_character_bounds[i]; |
| metro_viewer::CharacterBounds bounds; |
| bounds.left = rect.x(); |
| bounds.top = rect.y(); |
| bounds.right = rect.right(); |
| bounds.bottom = rect.bottom(); |
| character_bounds.push_back(bounds); |
| } |
| host_->Send(new MetroViewerHostMsg_ImeTextInputClientUpdated( |
| input_scopes, character_bounds)); |
| } |
| |
| gfx::Point PointFromNativeEvent(int32 x, int32 y) { |
| static float scale_factor = gfx::GetDPIScale(); |
| gfx::Point result( x * scale_factor, y * scale_factor); |
| return result; |
| } |
| |
| void RemoteWindowTreeHostWin::OnMouseMoved(int32 x, int32 y, int32 flags) { |
| if (ignore_mouse_moves_until_set_cursor_ack_) |
| return; |
| |
| gfx::Point location = PointFromNativeEvent(x, y); |
| ui::MouseEvent event(ui::ET_MOUSE_MOVED, location, location, flags, 0); |
| SendEventToProcessor(&event); |
| } |
| |
| void RemoteWindowTreeHostWin::OnMouseButton( |
| const MetroViewerHostMsg_MouseButtonParams& params) { |
| gfx::Point location = PointFromNativeEvent(params.x, params.y); |
| ui::MouseEvent mouse_event(params.event_type, location, location, |
| static_cast<int>(params.flags), |
| static_cast<int>(params.changed_button)); |
| |
| SetEventFlags(params.flags | key_event_flags()); |
| if (params.event_type == ui::ET_MOUSEWHEEL) { |
| int x_offset = params.is_horizontal_wheel ? params.extra : 0; |
| int y_offset = !params.is_horizontal_wheel ? params.extra : 0; |
| ui::MouseWheelEvent wheel_event(mouse_event, x_offset, y_offset); |
| SendEventToProcessor(&wheel_event); |
| } else if (params.event_type == ui::ET_MOUSE_PRESSED) { |
| // TODO(shrikant): Ideally modify code in event.cc by adding automatic |
| // tracking of double clicks in synthetic MouseEvent constructor code. |
| // Non-synthetic MouseEvent constructor code does automatically track |
| // this. Need to use some caution while modifying synthetic constructor |
| // as many tests and other code paths depend on it and apparently |
| // specifically depend on non implicit tracking of previous mouse event. |
| if (last_mouse_click_event_ && |
| ui::MouseEvent::IsRepeatedClickEvent(mouse_event, |
| *last_mouse_click_event_)) { |
| mouse_event.SetClickCount(2); |
| } else { |
| mouse_event.SetClickCount(1); |
| } |
| last_mouse_click_event_ .reset(new ui::MouseEvent(mouse_event)); |
| SendEventToProcessor(&mouse_event); |
| } else { |
| SendEventToProcessor(&mouse_event); |
| } |
| } |
| |
| void RemoteWindowTreeHostWin::OnKeyDown(uint32 vkey, |
| uint32 repeat_count, |
| uint32 scan_code, |
| uint32 flags) { |
| DispatchKeyboardMessage(ui::ET_KEY_PRESSED, vkey, repeat_count, scan_code, |
| flags, false); |
| } |
| |
| void RemoteWindowTreeHostWin::OnKeyUp(uint32 vkey, |
| uint32 repeat_count, |
| uint32 scan_code, |
| uint32 flags) { |
| DispatchKeyboardMessage(ui::ET_KEY_RELEASED, vkey, repeat_count, scan_code, |
| flags, false); |
| } |
| |
| void RemoteWindowTreeHostWin::OnChar(uint32 key_code, |
| uint32 repeat_count, |
| uint32 scan_code, |
| uint32 flags) { |
| DispatchKeyboardMessage(ui::ET_KEY_PRESSED, key_code, repeat_count, |
| scan_code, flags, true); |
| } |
| |
| void RemoteWindowTreeHostWin::OnWindowActivated() { |
| OnHostActivated(); |
| } |
| |
| void RemoteWindowTreeHostWin::OnEdgeGesture() { |
| ui::GestureEvent event( |
| ui::ET_GESTURE_WIN8_EDGE_SWIPE, |
| 0, |
| 0, |
| 0, |
| ui::EventTimeForNow(), |
| ui::GestureEventDetails(ui::ET_GESTURE_WIN8_EDGE_SWIPE, 0, 0), |
| 0); |
| SendEventToProcessor(&event); |
| } |
| |
| void RemoteWindowTreeHostWin::OnTouchDown(int32 x, |
| int32 y, |
| uint64 timestamp, |
| uint32 pointer_id) { |
| gfx::Point location = PointFromNativeEvent(x, y); |
| ui::TouchEvent event(ui::ET_TOUCH_PRESSED, |
| location, |
| pointer_id, |
| base::TimeDelta::FromMicroseconds(timestamp)); |
| SendEventToProcessor(&event); |
| } |
| |
| void RemoteWindowTreeHostWin::OnTouchUp(int32 x, |
| int32 y, |
| uint64 timestamp, |
| uint32 pointer_id) { |
| gfx::Point location = PointFromNativeEvent(x, y); |
| ui::TouchEvent event(ui::ET_TOUCH_RELEASED, |
| location, |
| pointer_id, |
| base::TimeDelta::FromMicroseconds(timestamp)); |
| SendEventToProcessor(&event); |
| } |
| |
| void RemoteWindowTreeHostWin::OnTouchMoved(int32 x, |
| int32 y, |
| uint64 timestamp, |
| uint32 pointer_id) { |
| gfx::Point location = PointFromNativeEvent(x, y); |
| ui::TouchEvent event(ui::ET_TOUCH_MOVED, |
| location, |
| pointer_id, |
| base::TimeDelta::FromMicroseconds(timestamp)); |
| SendEventToProcessor(&event); |
| } |
| |
| void RemoteWindowTreeHostWin::OnSetCursorPosAck() { |
| DCHECK(ignore_mouse_moves_until_set_cursor_ack_); |
| ignore_mouse_moves_until_set_cursor_ack_ = false; |
| } |
| |
| ui::RemoteInputMethodPrivateWin* |
| RemoteWindowTreeHostWin::GetRemoteInputMethodPrivate() { |
| ui::InputMethod* input_method = GetAshWindow()->GetProperty( |
| aura::client::kRootWindowInputMethodKey); |
| return ui::RemoteInputMethodPrivateWin::Get(input_method); |
| } |
| |
| void RemoteWindowTreeHostWin::OnImeCandidatePopupChanged(bool visible) { |
| ui::RemoteInputMethodPrivateWin* remote_input_method_private = |
| GetRemoteInputMethodPrivate(); |
| if (!remote_input_method_private) |
| return; |
| remote_input_method_private->OnCandidatePopupChanged(visible); |
| } |
| |
| void RemoteWindowTreeHostWin::OnImeCompositionChanged( |
| const base::string16& text, |
| int32 selection_start, |
| int32 selection_end, |
| const std::vector<metro_viewer::UnderlineInfo>& underlines) { |
| ui::RemoteInputMethodPrivateWin* remote_input_method_private = |
| GetRemoteInputMethodPrivate(); |
| if (!remote_input_method_private) |
| return; |
| ui::CompositionText composition_text; |
| FillCompositionText( |
| text, selection_start, selection_end, underlines, &composition_text); |
| remote_input_method_private->OnCompositionChanged(composition_text); |
| } |
| |
| void RemoteWindowTreeHostWin::OnImeTextCommitted(const base::string16& text) { |
| ui::RemoteInputMethodPrivateWin* remote_input_method_private = |
| GetRemoteInputMethodPrivate(); |
| if (!remote_input_method_private) |
| return; |
| remote_input_method_private->OnTextCommitted(text); |
| } |
| |
| void RemoteWindowTreeHostWin::OnImeInputSourceChanged(uint16 language_id, |
| bool is_ime) { |
| ui::RemoteInputMethodPrivateWin* remote_input_method_private = |
| GetRemoteInputMethodPrivate(); |
| if (!remote_input_method_private) |
| return; |
| remote_input_method_private->OnInputSourceChanged(language_id, is_ime); |
| } |
| |
| void RemoteWindowTreeHostWin::DispatchKeyboardMessage(ui::EventType type, |
| uint32 vkey, |
| uint32 repeat_count, |
| uint32 scan_code, |
| uint32 flags, |
| bool is_character) { |
| SetEventFlags(flags | mouse_event_flags()); |
| if (base::MessageLoop::current()->IsNested()) { |
| int index = (flags & ui::EF_ALT_DOWN) ? 1 : 0; |
| const int char_message[] = {WM_CHAR, WM_SYSCHAR}; |
| const int keydown_message[] = {WM_KEYDOWN, WM_SYSKEYDOWN}; |
| const int keyup_message[] = {WM_KEYUP, WM_SYSKEYUP}; |
| uint32 message = is_character |
| ? char_message[index] |
| : (type == ui::ET_KEY_PRESSED ? keydown_message[index] |
| : keyup_message[index]); |
| ::PostThreadMessage(::GetCurrentThreadId(), |
| message, |
| vkey, |
| repeat_count | scan_code >> 15); |
| } else { |
| ui::KeyEvent event(type, |
| ui::KeyboardCodeForWindowsKeyCode(vkey), |
| flags, |
| is_character); |
| SendEventToProcessor(&event); |
| } |
| } |
| |
| void RemoteWindowTreeHostWin::SetEventFlags(uint32 flags) { |
| if (flags == event_flags_) |
| return; |
| event_flags_ = flags; |
| SetVirtualKeyStates(event_flags_); |
| } |
| |
| } // namespace aura |
