The Tor Browser / file comparison
comparison: accessible/src/atk/nsMaiInterfaceComponent.cpp
accessible/src/atk/nsMaiInterfaceComponent.cpp
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:17627b2c6727 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim: set ts=2 et sw=2 tw=80: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #include "InterfaceInitFuncs.h" | |
| 8 | |
| 9 #include "AccessibleWrap.h" | |
| 10 #include "nsAccUtils.h" | |
| 11 #include "nsCoreUtils.h" | |
| 12 #include "nsMai.h" | |
| 13 #include "mozilla/Likely.h" | |
| 14 | |
| 15 using namespace mozilla::a11y; | |
| 16 | |
| 17 extern "C" { | |
| 18 | |
| 19 static AtkObject* | |
| 20 refAccessibleAtPointCB(AtkComponent* aComponent, gint aAccX, gint aAccY, | |
| 21 AtkCoordType aCoordType) | |
| 22 { | |
| 23 return refAccessibleAtPointHelper(GetAccessibleWrap(ATK_OBJECT(aComponent)), | |
| 24 aAccX, aAccY, aCoordType); | |
| 25 } | |
| 26 | |
| 27 static void | |
| 28 getExtentsCB(AtkComponent* aComponent, gint* aX, gint* aY, | |
| 29 gint* aWidth, gint* aHeight, AtkCoordType aCoordType) | |
| 30 { | |
| 31 getExtentsHelper(GetAccessibleWrap(ATK_OBJECT(aComponent)), | |
| 32 aX, aY, aWidth, aHeight, aCoordType); | |
| 33 } | |
| 34 | |
| 35 static gboolean | |
| 36 grabFocusCB(AtkComponent* aComponent) | |
| 37 { | |
| 38 AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aComponent)); | |
| 39 if (!accWrap) | |
| 40 return FALSE; | |
| 41 | |
| 42 nsresult rv = accWrap->TakeFocus(); | |
| 43 return (NS_FAILED(rv)) ? FALSE : TRUE; | |
| 44 } | |
| 45 } | |
| 46 | |
| 47 AtkObject* | |
| 48 refAccessibleAtPointHelper(AccessibleWrap* aAccWrap, gint aX, gint aY, | |
| 49 AtkCoordType aCoordType) | |
| 50 { | |
| 51 if (!aAccWrap || aAccWrap->IsDefunct() || nsAccUtils::MustPrune(aAccWrap)) | |
| 52 return nullptr; | |
| 53 | |
| 54 // Accessible::ChildAtPoint(x,y) is in screen pixels. | |
| 55 if (aCoordType == ATK_XY_WINDOW) { | |
| 56 nsIntPoint winCoords = | |
| 57 nsCoreUtils::GetScreenCoordsForWindow(aAccWrap->GetNode()); | |
| 58 aX += winCoords.x; | |
| 59 aY += winCoords.y; | |
| 60 } | |
| 61 | |
| 62 Accessible* accAtPoint = aAccWrap->ChildAtPoint(aX, aY, | |
| 63 Accessible::eDirectChild); | |
| 64 if (!accAtPoint) | |
| 65 return nullptr; | |
| 66 | |
| 67 AtkObject* atkObj = AccessibleWrap::GetAtkObject(accAtPoint); | |
| 68 if (atkObj) | |
| 69 g_object_ref(atkObj); | |
| 70 return atkObj; | |
| 71 } | |
| 72 | |
| 73 void | |
| 74 getExtentsHelper(AccessibleWrap* aAccWrap, | |
| 75 gint* aX, gint* aY, gint* aWidth, gint* aHeight, | |
| 76 AtkCoordType aCoordType) | |
| 77 { | |
| 78 *aX = *aY = *aWidth = *aHeight = 0; | |
| 79 | |
| 80 if (!aAccWrap || aAccWrap->IsDefunct()) | |
| 81 return; | |
| 82 | |
| 83 int32_t x = 0, y = 0, width = 0, height = 0; | |
| 84 // Returned in screen coordinates | |
| 85 nsresult rv = aAccWrap->GetBounds(&x, &y, &width, &height); | |
| 86 if (NS_FAILED(rv)) | |
| 87 return; | |
| 88 | |
| 89 if (aCoordType == ATK_XY_WINDOW) { | |
| 90 nsIntPoint winCoords = | |
| 91 nsCoreUtils::GetScreenCoordsForWindow(aAccWrap->GetNode()); | |
| 92 x -= winCoords.x; | |
| 93 y -= winCoords.y; | |
| 94 } | |
| 95 | |
| 96 *aX = x; | |
| 97 *aY = y; | |
| 98 *aWidth = width; | |
| 99 *aHeight = height; | |
| 100 } | |
| 101 | |
| 102 void | |
| 103 componentInterfaceInitCB(AtkComponentIface* aIface) | |
| 104 { | |
| 105 NS_ASSERTION(aIface, "Invalid Interface"); | |
| 106 if(MOZ_UNLIKELY(!aIface)) | |
| 107 return; | |
| 108 | |
| 109 /* | |
| 110 * Use default implementation in atk for contains, get_position, | |
| 111 * and get_size | |
| 112 */ | |
| 113 aIface->ref_accessible_at_point = refAccessibleAtPointCB; | |
| 114 aIface->get_extents = getExtentsCB; | |
| 115 aIface->grab_focus = grabFocusCB; | |
| 116 } |
