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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "ui/views/win/hwnd_message_handler.h" | 5 #include "ui/views/win/hwnd_message_handler.h" |
6 | 6 |
7 #include <dwmapi.h> | 7 #include <dwmapi.h> |
8 #include <oleacc.h> | 8 #include <oleacc.h> |
9 #include <shellapi.h> | 9 #include <shellapi.h> |
10 #include <tchar.h> | 10 #include <tchar.h> |
11 | 11 |
12 #include <utility> | 12 #include <utility> |
13 | 13 |
14 #include "base/bind.h" | 14 #include "base/bind.h" |
15 #include "base/bind_helpers.h" | 15 #include "base/bind_helpers.h" |
16 #include "base/debug/alias.h" | 16 #include "base/debug/alias.h" |
17 #include "base/location.h" | 17 #include "base/location.h" |
18 #include "base/macros.h" | 18 #include "base/macros.h" |
19 #include "base/single_thread_task_runner.h" | 19 #include "base/single_thread_task_runner.h" |
20 #include "base/threading/thread_task_runner_handle.h" | 20 #include "base/threading/thread_task_runner_handle.h" |
21 #include "base/time/time.h" | 21 #include "base/time/time.h" |
22 #include "base/trace_event/trace_event.h" | 22 #include "base/trace_event/trace_event.h" |
23 #include "base/win/scoped_comptr.h" | |
23 #include "base/win/scoped_gdi_object.h" | 24 #include "base/win/scoped_gdi_object.h" |
24 #include "base/win/windows_version.h" | 25 #include "base/win/windows_version.h" |
26 #include "ui/accessibility/platform/ax_fake_caret_win.h" | |
27 #include "ui/accessibility/platform/ax_platform_node_win.h" | |
28 #include "ui/base/ime/input_method.h" | |
29 #include "ui/base/ime/text_input_client.h" | |
30 #include "ui/base/ime/text_input_type.h" | |
25 #include "ui/base/view_prop.h" | 31 #include "ui/base/view_prop.h" |
26 #include "ui/base/win/internal_constants.h" | 32 #include "ui/base/win/internal_constants.h" |
27 #include "ui/base/win/lock_state.h" | 33 #include "ui/base/win/lock_state.h" |
28 #include "ui/base/win/mouse_wheel_util.h" | 34 #include "ui/base/win/mouse_wheel_util.h" |
29 #include "ui/base/win/shell.h" | 35 #include "ui/base/win/shell.h" |
30 #include "ui/base/win/touch_input.h" | 36 #include "ui/base/win/touch_input.h" |
31 #include "ui/display/win/dpi.h" | 37 #include "ui/display/win/dpi.h" |
32 #include "ui/display/win/screen_win.h" | 38 #include "ui/display/win/screen_win.h" |
33 #include "ui/events/event.h" | 39 #include "ui/events/event.h" |
34 #include "ui/events/event_constants.h" | 40 #include "ui/events/event_constants.h" |
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377 GetProcAddress(GetModuleHandle(L"user32.dll"), | 383 GetProcAddress(GetModuleHandle(L"user32.dll"), |
378 "EnableChildWindowDpiMessage")); | 384 "EnableChildWindowDpiMessage")); |
379 }(); | 385 }(); |
380 if (enable_child_window_dpi_message_func) | 386 if (enable_child_window_dpi_message_func) |
381 enable_child_window_dpi_message_func(hwnd(), TRUE); | 387 enable_child_window_dpi_message_func(hwnd(), TRUE); |
382 } | 388 } |
383 | 389 |
384 prop_window_target_.reset(new ui::ViewProp(hwnd(), | 390 prop_window_target_.reset(new ui::ViewProp(hwnd(), |
385 ui::WindowEventTarget::kWin32InputEventTarget, | 391 ui::WindowEventTarget::kWin32InputEventTarget, |
386 static_cast<ui::WindowEventTarget*>(this))); | 392 static_cast<ui::WindowEventTarget*>(this))); |
393 delegate_->AddInputMethodObserver(*this); | |
387 | 394 |
388 // Direct Manipulation is enabled on Windows 10+. The CreateInstance function | 395 // Direct Manipulation is enabled on Windows 10+. The CreateInstance function |
389 // returns NULL if Direct Manipulation is not available. | 396 // returns NULL if Direct Manipulation is not available. |
390 direct_manipulation_helper_ = | 397 direct_manipulation_helper_ = |
391 gfx::win::DirectManipulationHelper::CreateInstance(); | 398 gfx::win::DirectManipulationHelper::CreateInstance(); |
392 if (direct_manipulation_helper_) | 399 if (direct_manipulation_helper_) |
393 direct_manipulation_helper_->Initialize(hwnd()); | 400 direct_manipulation_helper_->Initialize(hwnd()); |
394 | 401 |
395 // Disable pen flicks (http://crbug.com/506977) | 402 // Disable pen flicks (http://crbug.com/506977) |
396 base::win::DisableFlicks(hwnd()); | 403 base::win::DisableFlicks(hwnd()); |
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922 // DefWindowProc() may have destroyed the window and/or us in a nested | 929 // DefWindowProc() may have destroyed the window and/or us in a nested |
923 // message loop. | 930 // message loop. |
924 if (!ref || !::IsWindow(window)) | 931 if (!ref || !::IsWindow(window)) |
925 return result; | 932 return result; |
926 } | 933 } |
927 | 934 |
928 if (delegate_) { | 935 if (delegate_) { |
929 delegate_->PostHandleMSG(message, w_param, l_param); | 936 delegate_->PostHandleMSG(message, w_param, l_param); |
930 if (message == WM_NCDESTROY) { | 937 if (message == WM_NCDESTROY) { |
931 RestoreEnabledIfNecessary(); | 938 RestoreEnabledIfNecessary(); |
939 delegate_->RemoveInputMethodObserver(*this); | |
940 ax_fake_caret_ = nullptr; | |
932 delegate_->HandleDestroyed(); | 941 delegate_->HandleDestroyed(); |
933 } | 942 } |
934 } | 943 } |
935 | 944 |
936 if (message == WM_ACTIVATE && IsTopLevelWindow(window)) | 945 if (message == WM_ACTIVATE && IsTopLevelWindow(window)) |
937 PostProcessActivateMessage(LOWORD(w_param), !!HIWORD(w_param), | 946 PostProcessActivateMessage(LOWORD(w_param), !!HIWORD(w_param), |
938 reinterpret_cast<HWND>(l_param)); | 947 reinterpret_cast<HWND>(l_param)); |
939 return result; | 948 return result; |
940 } | 949 } |
941 | 950 |
951 void HWNDMessageHandler::OnCaretBoundsChanged( | |
952 const ui::TextInputClient* client) { | |
953 if (!client || client->GetTextInputType() == ui::TEXT_INPUT_TYPE_NONE) | |
954 return; | |
955 DCHECK(ax_fake_caret_); | |
956 const gfx::Rect dip_caret_bounds(client->GetCaretBounds()); | |
957 gfx::Rect caret_bounds = | |
958 display::win::ScreenWin::DIPToScreenRect(hwnd(), dip_caret_bounds); | |
959 // Collapse any selection. | |
960 caret_bounds.set_width(1); | |
961 ax_fake_caret_->MoveCaretTo(caret_bounds); | |
962 } | |
963 | |
964 void HWNDMessageHandler::OnTextInputStateChanged( | |
965 const ui::TextInputClient* client) { | |
966 if (!client || client->GetTextInputType() == ui::TEXT_INPUT_TYPE_NONE) | |
967 ax_fake_caret_ = nullptr; | |
968 ax_fake_caret_ = std::make_unique<ui::AXFakeCaretWin>(hwnd()); | |
969 } | |
970 | |
971 void HWNDMessageHandler::OnInputMethodDestroyed( | |
972 const ui::InputMethod* input_method) { | |
973 delegate_->RemoveInputMethodObserver(*this); | |
dmazzoni
2017/05/01 19:54:20
I don't think this is right. This will be called
f
| |
974 ax_fake_caret_ = nullptr; | |
975 } | |
976 | |
942 LRESULT HWNDMessageHandler::HandleMouseMessage(unsigned int message, | 977 LRESULT HWNDMessageHandler::HandleMouseMessage(unsigned int message, |
943 WPARAM w_param, | 978 WPARAM w_param, |
944 LPARAM l_param, | 979 LPARAM l_param, |
945 bool* handled) { | 980 bool* handled) { |
946 // Don't track forwarded mouse messages. We expect the caller to track the | 981 // Don't track forwarded mouse messages. We expect the caller to track the |
947 // mouse. | 982 // mouse. |
948 base::WeakPtr<HWNDMessageHandler> ref(weak_factory_.GetWeakPtr()); | 983 base::WeakPtr<HWNDMessageHandler> ref(weak_factory_.GetWeakPtr()); |
949 LRESULT ret = HandleMouseEventInternal(message, w_param, l_param, false); | 984 LRESULT ret = HandleMouseEventInternal(message, w_param, l_param, false); |
950 *handled = IsMsgHandled(); | 985 *handled = IsMsgHandled(); |
951 return ret; | 986 return ret; |
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1514 | 1549 |
1515 // Only the lower 32 bits of l_param are valid when checking the object id | 1550 // Only the lower 32 bits of l_param are valid when checking the object id |
1516 // because it sometimes gets sign-extended incorrectly (but not always). | 1551 // because it sometimes gets sign-extended incorrectly (but not always). |
1517 DWORD obj_id = static_cast<DWORD>(static_cast<DWORD_PTR>(l_param)); | 1552 DWORD obj_id = static_cast<DWORD>(static_cast<DWORD_PTR>(l_param)); |
1518 | 1553 |
1519 // Accessibility readers will send an OBJID_CLIENT message | 1554 // Accessibility readers will send an OBJID_CLIENT message |
1520 if (static_cast<DWORD>(OBJID_CLIENT) == obj_id) { | 1555 if (static_cast<DWORD>(OBJID_CLIENT) == obj_id) { |
1521 // Retrieve MSAA dispatch object for the root view. | 1556 // Retrieve MSAA dispatch object for the root view. |
1522 base::win::ScopedComPtr<IAccessible> root( | 1557 base::win::ScopedComPtr<IAccessible> root( |
1523 delegate_->GetNativeViewAccessible()); | 1558 delegate_->GetNativeViewAccessible()); |
1524 | |
1525 // Create a reference that MSAA will marshall to the client. | |
1526 reference_result = LresultFromObject(IID_IAccessible, w_param, | 1559 reference_result = LresultFromObject(IID_IAccessible, w_param, |
1527 static_cast<IAccessible*>(root.Detach())); | 1560 static_cast<IAccessible*>(root.Detach())); |
1561 } else if (ax_fake_caret_ && static_cast<DWORD>(OBJID_CARET) == obj_id) { | |
1562 base::win::ScopedComPtr<IAccessible> fake_caret_accessible = | |
dmazzoni
2017/05/01 19:54:20
I think you should only do this if the window has
| |
1563 ax_fake_caret_->GetCaret(); | |
1564 reference_result = LresultFromObject(IID_IAccessible, w_param, | |
1565 fake_caret_accessible.Detach()); | |
1528 } | 1566 } |
1529 | 1567 |
1530 return reference_result; | 1568 return reference_result; |
1531 } | 1569 } |
1532 | 1570 |
1533 LRESULT HWNDMessageHandler::OnImeMessages(UINT message, | 1571 LRESULT HWNDMessageHandler::OnImeMessages(UINT message, |
1534 WPARAM w_param, | 1572 WPARAM w_param, |
1535 LPARAM l_param) { | 1573 LPARAM l_param) { |
1536 LRESULT result = 0; | 1574 LRESULT result = 0; |
1537 base::WeakPtr<HWNDMessageHandler> ref(weak_factory_.GetWeakPtr()); | 1575 base::WeakPtr<HWNDMessageHandler> ref(weak_factory_.GetWeakPtr()); |
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2902 MONITORINFO monitor_info = {sizeof(monitor_info)}; | 2940 MONITORINFO monitor_info = {sizeof(monitor_info)}; |
2903 GetMonitorInfo(MonitorFromWindow(hwnd(), MONITOR_DEFAULTTOPRIMARY), | 2941 GetMonitorInfo(MonitorFromWindow(hwnd(), MONITOR_DEFAULTTOPRIMARY), |
2904 &monitor_info); | 2942 &monitor_info); |
2905 gfx::Rect shrunk_rect(monitor_info.rcMonitor); | 2943 gfx::Rect shrunk_rect(monitor_info.rcMonitor); |
2906 shrunk_rect.set_height(shrunk_rect.height() - 1); | 2944 shrunk_rect.set_height(shrunk_rect.height() - 1); |
2907 background_fullscreen_hack_ = true; | 2945 background_fullscreen_hack_ = true; |
2908 SetBoundsInternal(shrunk_rect, false); | 2946 SetBoundsInternal(shrunk_rect, false); |
2909 } | 2947 } |
2910 | 2948 |
2911 } // namespace views | 2949 } // namespace views |
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