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| 1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. Use of this | 1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. Use of this |
| 2 // source code is governed by a BSD-style license that can be found in the | 2 // source code is governed by a BSD-style license that can be found in the |
| 3 // LICENSE file. | 3 // LICENSE file. |
| 4 | 4 |
| 5 #include "views/controls/native_control_win.h" | 5 #include "views/controls/native_control_win.h" |
| 6 | 6 |
| 7 #include "app/l10n_util_win.h" | 7 #include "app/l10n_util_win.h" |
| 8 #include "base/logging.h" | 8 #include "base/logging.h" |
| 9 #include "base/win_util.h" | 9 #include "base/win_util.h" |
| 10 | 10 |
| 11 namespace views { | 11 namespace views { |
| 12 | 12 |
| 13 // static | 13 // static |
| 14 const wchar_t* NativeControlWin::kNativeControlWinKey = | 14 const wchar_t* NativeControlWin::kNativeControlWinKey = |
| 15 L"__NATIVE_CONTROL_WIN__"; | 15 L"__NATIVE_CONTROL_WIN__"; |
| 16 | 16 |
| 17 static const wchar_t* kNativeControlOriginalWndProcKey = | 17 static const wchar_t* kNativeControlOriginalWndProcKey = |
| 18 L"__NATIVE_CONTROL_ORIGINAL_WNDPROC__"; | 18 L"__NATIVE_CONTROL_ORIGINAL_WNDPROC__"; |
| 19 | 19 |
| 20 // static | 20 // static |
| 21 WNDPROC NativeControlWin::original_wndproc_ = NULL; | 21 WNDPROC NativeControlWin::original_wndproc_ = NULL; |
| 22 | 22 |
| 23 //////////////////////////////////////////////////////////////////////////////// | 23 //////////////////////////////////////////////////////////////////////////////// |
| 24 // NativeControlWin, public: | 24 // NativeControlWin, public: |
| 25 | 25 |
| 26 NativeControlWin::NativeControlWin() : HWNDView() { | 26 NativeControlWin::NativeControlWin() { |
| 27 } | 27 } |
| 28 | 28 |
| 29 NativeControlWin::~NativeControlWin() { | 29 NativeControlWin::~NativeControlWin() { |
| 30 HWND hwnd = GetHWND(); | 30 HWND hwnd = native_view(); |
| 31 if (hwnd) { | 31 if (hwnd) { |
| 32 // Destroy the hwnd if it still exists. Otherwise we won't have shut things | 32 // Destroy the hwnd if it still exists. Otherwise we won't have shut things |
| 33 // down correctly, leading to leaking and crashing if another message | 33 // down correctly, leading to leaking and crashing if another message |
| 34 // comes in for the hwnd. | 34 // comes in for the hwnd. |
| 35 Detach(); | 35 Detach(); |
| 36 DestroyWindow(hwnd); | 36 DestroyWindow(hwnd); |
| 37 } | 37 } |
| 38 } | 38 } |
| 39 | 39 |
| 40 bool NativeControlWin::ProcessMessage(UINT message, WPARAM w_param, | 40 bool NativeControlWin::ProcessMessage(UINT message, WPARAM w_param, |
| 41 LPARAM l_param, LRESULT* result) { | 41 LPARAM l_param, LRESULT* result) { |
| 42 switch (message) { | 42 switch (message) { |
| 43 case WM_CONTEXTMENU: | 43 case WM_CONTEXTMENU: |
| 44 ShowContextMenu(gfx::Point(LOWORD(l_param), HIWORD(l_param))); | 44 ShowContextMenu(gfx::Point(LOWORD(l_param), HIWORD(l_param))); |
| 45 *result = 0; | 45 *result = 0; |
| 46 return true; | 46 return true; |
| 47 case WM_CTLCOLORBTN: | 47 case WM_CTLCOLORBTN: |
| 48 case WM_CTLCOLORSTATIC: | 48 case WM_CTLCOLORSTATIC: |
| 49 *result = GetControlColor(message, reinterpret_cast<HDC>(w_param), | 49 *result = GetControlColor(message, reinterpret_cast<HDC>(w_param), |
| 50 GetHWND()); | 50 native_view()); |
| 51 return true; | 51 return true; |
| 52 } | 52 } |
| 53 return false; | 53 return false; |
| 54 } | 54 } |
| 55 | 55 |
| 56 //////////////////////////////////////////////////////////////////////////////// | 56 //////////////////////////////////////////////////////////////////////////////// |
| 57 // NativeControlWin, View overrides: | 57 // NativeControlWin, View overrides: |
| 58 | 58 |
| 59 void NativeControlWin::SetEnabled(bool enabled) { | 59 void NativeControlWin::SetEnabled(bool enabled) { |
| 60 if (IsEnabled() != enabled) { | 60 if (IsEnabled() != enabled) { |
| 61 View::SetEnabled(enabled); | 61 View::SetEnabled(enabled); |
| 62 if (GetHWND()) | 62 if (native_view()) |
| 63 EnableWindow(GetHWND(), IsEnabled()); | 63 EnableWindow(native_view(), IsEnabled()); |
| 64 } | 64 } |
| 65 } | 65 } |
| 66 | 66 |
| 67 void NativeControlWin::ViewHierarchyChanged(bool is_add, View* parent, | 67 void NativeControlWin::ViewHierarchyChanged(bool is_add, View* parent, |
| 68 View* child) { | 68 View* child) { |
| 69 // Call the base class to hide the view if we're being removed. |
| 70 NativeViewHost::ViewHierarchyChanged(is_add, parent, child); |
| 71 |
| 69 // Create the HWND when we're added to a valid Widget. Many controls need a | 72 // Create the HWND when we're added to a valid Widget. Many controls need a |
| 70 // parent HWND to function properly. | 73 // parent HWND to function properly. |
| 71 if (is_add && GetWidget() && !GetHWND()) | 74 if (is_add && GetWidget() && !native_view()) |
| 72 CreateNativeControl(); | 75 CreateNativeControl(); |
| 73 | |
| 74 // Call the base class to hide the view if we're being removed. | |
| 75 HWNDView::ViewHierarchyChanged(is_add, parent, child); | |
| 76 } | 76 } |
| 77 | 77 |
| 78 void NativeControlWin::VisibilityChanged(View* starting_from, bool is_visible) { | 78 void NativeControlWin::VisibilityChanged(View* starting_from, bool is_visible) { |
| 79 if (!is_visible) { | 79 if (!is_visible) { |
| 80 // We destroy the child control HWND when we become invisible because of the | 80 // We destroy the child control HWND when we become invisible because of the |
| 81 // performance cost of maintaining many HWNDs. | 81 // performance cost of maintaining many HWNDs. |
| 82 HWND hwnd = GetHWND(); | 82 HWND hwnd = native_view(); |
| 83 Detach(); | 83 Detach(); |
| 84 DestroyWindow(hwnd); | 84 DestroyWindow(hwnd); |
| 85 } else if (!GetHWND()) { | 85 } else if (!native_view()) { |
| 86 CreateNativeControl(); | 86 CreateNativeControl(); |
| 87 } | 87 } |
| 88 } | 88 } |
| 89 | 89 |
| 90 void NativeControlWin::Focus() { | 90 void NativeControlWin::Focus() { |
| 91 DCHECK(GetHWND()); | 91 DCHECK(native_view()); |
| 92 SetFocus(GetHWND()); | 92 SetFocus(native_view()); |
| 93 } | 93 } |
| 94 | 94 |
| 95 //////////////////////////////////////////////////////////////////////////////// | 95 //////////////////////////////////////////////////////////////////////////////// |
| 96 // NativeControlWin, protected: | 96 // NativeControlWin, protected: |
| 97 | 97 |
| 98 void NativeControlWin::ShowContextMenu(const gfx::Point& location) { | 98 void NativeControlWin::ShowContextMenu(const gfx::Point& location) { |
| 99 if (!GetContextMenuController()) | 99 if (!GetContextMenuController()) |
| 100 return; | 100 return; |
| 101 | 101 |
| 102 int x = location.x(); | 102 int x = location.x(); |
| (...skipping 13 matching lines...) Expand all Loading... |
| 116 // this object when it receives messages from it. | 116 // this object when it receives messages from it. |
| 117 SetProp(native_control, kNativeControlWinKey, this); | 117 SetProp(native_control, kNativeControlWinKey, this); |
| 118 | 118 |
| 119 // Subclass the window so we can monitor for key presses. | 119 // Subclass the window so we can monitor for key presses. |
| 120 original_wndproc_ = | 120 original_wndproc_ = |
| 121 win_util::SetWindowProc(native_control, | 121 win_util::SetWindowProc(native_control, |
| 122 &NativeControlWin::NativeControlWndProc); | 122 &NativeControlWin::NativeControlWndProc); |
| 123 SetProp(native_control, kNativeControlOriginalWndProcKey, original_wndproc_); | 123 SetProp(native_control, kNativeControlOriginalWndProcKey, original_wndproc_); |
| 124 | 124 |
| 125 Attach(native_control); | 125 Attach(native_control); |
| 126 // GetHWND() is now valid. | 126 // native_view() is now valid. |
| 127 | 127 |
| 128 // Update the newly created HWND with any resident enabled state. | 128 // Update the newly created HWND with any resident enabled state. |
| 129 EnableWindow(GetHWND(), IsEnabled()); | 129 EnableWindow(native_view(), IsEnabled()); |
| 130 | 130 |
| 131 // This message ensures that the focus border is shown. | 131 // This message ensures that the focus border is shown. |
| 132 SendMessage(GetHWND(), WM_CHANGEUISTATE, | 132 SendMessage(native_view(), WM_CHANGEUISTATE, |
| 133 MAKEWPARAM(UIS_CLEAR, UISF_HIDEFOCUS), 0); | 133 MAKEWPARAM(UIS_CLEAR, UISF_HIDEFOCUS), 0); |
| 134 } | 134 } |
| 135 | 135 |
| 136 DWORD NativeControlWin::GetAdditionalExStyle() const { | 136 DWORD NativeControlWin::GetAdditionalExStyle() const { |
| 137 // If the UI for the view is mirrored, we should make sure we add the | 137 // If the UI for the view is mirrored, we should make sure we add the |
| 138 // extended window style for a right-to-left layout so the subclass creates | 138 // extended window style for a right-to-left layout so the subclass creates |
| 139 // a mirrored HWND for the underlying control. | 139 // a mirrored HWND for the underlying control. |
| 140 DWORD ex_style = 0; | 140 DWORD ex_style = 0; |
| 141 if (UILayoutIsRightToLeft()) | 141 if (UILayoutIsRightToLeft()) |
| 142 ex_style |= l10n_util::GetExtendedStyles(); | 142 ex_style |= l10n_util::GetExtendedStyles(); |
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| 189 } else if (message == WM_DESTROY) { | 189 } else if (message == WM_DESTROY) { |
| 190 win_util::SetWindowProc(window, native_control->original_wndproc_); | 190 win_util::SetWindowProc(window, native_control->original_wndproc_); |
| 191 RemoveProp(window, kNativeControlWinKey); | 191 RemoveProp(window, kNativeControlWinKey); |
| 192 } | 192 } |
| 193 | 193 |
| 194 return CallWindowProc(native_control->original_wndproc_, window, message, | 194 return CallWindowProc(native_control->original_wndproc_, window, message, |
| 195 w_param, l_param); | 195 w_param, l_param); |
| 196 } | 196 } |
| 197 | 197 |
| 198 } // namespace views | 198 } // namespace views |
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