The Tor Browser / file comparison
comparison: accessible/src/windows/ia2/ia2AccessibleComponent.cpp
accessible/src/windows/ia2/ia2AccessibleComponent.cpp
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:ce0d988a07d8 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim:expandtab:shiftwidth=2:tabstop=2: | |
| 3 */ | |
| 4 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 5 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 7 | |
| 8 #include "ia2AccessibleComponent.h" | |
| 9 | |
| 10 #include "AccessibleComponent_i.c" | |
| 11 | |
| 12 #include "AccessibleWrap.h" | |
| 13 #include "States.h" | |
| 14 #include "IUnknownImpl.h" | |
| 15 | |
| 16 #include "nsIFrame.h" | |
| 17 | |
| 18 using namespace mozilla::a11y; | |
| 19 | |
| 20 // IUnknown | |
| 21 | |
| 22 STDMETHODIMP | |
| 23 ia2AccessibleComponent::QueryInterface(REFIID iid, void** ppv) | |
| 24 { | |
| 25 if (!ppv) | |
| 26 return E_INVALIDARG; | |
| 27 | |
| 28 *ppv = nullptr; | |
| 29 | |
| 30 if (IID_IAccessibleComponent == iid) { | |
| 31 *ppv = static_cast<IAccessibleComponent*>(this); | |
| 32 (reinterpret_cast<IUnknown*>(*ppv))->AddRef(); | |
| 33 return S_OK; | |
| 34 } | |
| 35 | |
| 36 return E_NOINTERFACE; | |
| 37 } | |
| 38 | |
| 39 // IAccessibleComponent | |
| 40 | |
| 41 STDMETHODIMP | |
| 42 ia2AccessibleComponent::get_locationInParent(long* aX, long* aY) | |
| 43 { | |
| 44 A11Y_TRYBLOCK_BEGIN | |
| 45 | |
| 46 if (!aX || !aY) | |
| 47 return E_INVALIDARG; | |
| 48 | |
| 49 *aX = 0; | |
| 50 *aY = 0; | |
| 51 | |
| 52 AccessibleWrap* acc = static_cast<AccessibleWrap*>(this); | |
| 53 if (acc->IsDefunct()) | |
| 54 return CO_E_OBJNOTCONNECTED; | |
| 55 | |
| 56 // If the object is not on any screen the returned position is (0,0). | |
| 57 uint64_t state = acc->State(); | |
| 58 if (state & states::INVISIBLE) | |
| 59 return S_OK; | |
| 60 | |
| 61 int32_t x = 0, y = 0, width = 0, height = 0; | |
| 62 nsresult rv = acc->GetBounds(&x, &y, &width, &height); | |
| 63 if (NS_FAILED(rv)) | |
| 64 return GetHRESULT(rv); | |
| 65 | |
| 66 Accessible* parentAcc = acc->Parent(); | |
| 67 | |
| 68 // The coordinates of the returned position are relative to this object's | |
| 69 // parent or relative to the screen on which this object is rendered if it | |
| 70 // has no parent. | |
| 71 if (!parentAcc) { | |
| 72 *aX = x; | |
| 73 *aY = y; | |
| 74 return S_OK; | |
| 75 } | |
| 76 | |
| 77 // The coordinates of the bounding box are given relative to the parent's | |
| 78 // coordinate system. | |
| 79 int32_t parentx = 0, parenty = 0; | |
| 80 rv = acc->GetBounds(&parentx, &parenty, &width, &height); | |
| 81 if (NS_FAILED(rv)) | |
| 82 return GetHRESULT(rv); | |
| 83 | |
| 84 *aX = x - parentx; | |
| 85 *aY = y - parenty; | |
| 86 return S_OK; | |
| 87 | |
| 88 A11Y_TRYBLOCK_END | |
| 89 } | |
| 90 | |
| 91 STDMETHODIMP | |
| 92 ia2AccessibleComponent::get_foreground(IA2Color* aForeground) | |
| 93 { | |
| 94 A11Y_TRYBLOCK_BEGIN | |
| 95 | |
| 96 if (!aForeground) | |
| 97 return E_INVALIDARG; | |
| 98 | |
| 99 *aForeground = 0; | |
| 100 | |
| 101 AccessibleWrap* acc = static_cast<AccessibleWrap*>(this); | |
| 102 if (acc->IsDefunct()) | |
| 103 return CO_E_OBJNOTCONNECTED; | |
| 104 | |
| 105 nsIFrame* frame = acc->GetFrame(); | |
| 106 if (frame) | |
| 107 *aForeground = frame->StyleColor()->mColor; | |
| 108 | |
| 109 return S_OK; | |
| 110 | |
| 111 A11Y_TRYBLOCK_END | |
| 112 } | |
| 113 | |
| 114 STDMETHODIMP | |
| 115 ia2AccessibleComponent::get_background(IA2Color* aBackground) | |
| 116 { | |
| 117 A11Y_TRYBLOCK_BEGIN | |
| 118 | |
| 119 if (!aBackground) | |
| 120 return E_INVALIDARG; | |
| 121 | |
| 122 *aBackground = 0; | |
| 123 | |
| 124 AccessibleWrap* acc = static_cast<AccessibleWrap*>(this); | |
| 125 if (acc->IsDefunct()) | |
| 126 return CO_E_OBJNOTCONNECTED; | |
| 127 | |
| 128 nsIFrame* frame = acc->GetFrame(); | |
| 129 if (frame) | |
| 130 *aBackground = frame->StyleBackground()->mBackgroundColor; | |
| 131 | |
| 132 return S_OK; | |
| 133 | |
| 134 A11Y_TRYBLOCK_END | |
| 135 } | |
| 136 |
