michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "InterfaceInitFuncs.h"
michael@0: 
michael@0: #include "AccessibleWrap.h"
michael@0: #include "nsAccUtils.h"
michael@0: #include "nsCoreUtils.h"
michael@0: #include "nsMai.h"
michael@0: #include "mozilla/Likely.h"
michael@0: 
michael@0: using namespace mozilla::a11y;
michael@0: 
michael@0: extern "C" {
michael@0: 
michael@0: static AtkObject*
michael@0: refAccessibleAtPointCB(AtkComponent* aComponent, gint aAccX, gint aAccY,
michael@0:                        AtkCoordType aCoordType)
michael@0: {
michael@0:   return refAccessibleAtPointHelper(GetAccessibleWrap(ATK_OBJECT(aComponent)),
michael@0:                                     aAccX, aAccY, aCoordType);
michael@0: }
michael@0: 
michael@0: static void
michael@0: getExtentsCB(AtkComponent* aComponent, gint* aX, gint* aY,
michael@0:              gint* aWidth, gint* aHeight, AtkCoordType aCoordType)
michael@0: {
michael@0:   getExtentsHelper(GetAccessibleWrap(ATK_OBJECT(aComponent)),
michael@0:                    aX, aY, aWidth, aHeight, aCoordType);
michael@0: }
michael@0: 
michael@0: static gboolean
michael@0: grabFocusCB(AtkComponent* aComponent)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aComponent));
michael@0:   if (!accWrap)
michael@0:     return FALSE;
michael@0: 
michael@0:   nsresult rv = accWrap->TakeFocus();
michael@0:   return (NS_FAILED(rv)) ? FALSE : TRUE;
michael@0: }
michael@0: }
michael@0: 
michael@0: AtkObject*
michael@0: refAccessibleAtPointHelper(AccessibleWrap* aAccWrap, gint aX, gint aY,
michael@0:                            AtkCoordType aCoordType)
michael@0: {
michael@0:   if (!aAccWrap || aAccWrap->IsDefunct() || nsAccUtils::MustPrune(aAccWrap))
michael@0:     return nullptr;
michael@0: 
michael@0:   // Accessible::ChildAtPoint(x,y) is in screen pixels.
michael@0:   if (aCoordType == ATK_XY_WINDOW) {
michael@0:     nsIntPoint winCoords =
michael@0:       nsCoreUtils::GetScreenCoordsForWindow(aAccWrap->GetNode());
michael@0:     aX += winCoords.x;
michael@0:     aY += winCoords.y;
michael@0:   }
michael@0: 
michael@0:   Accessible* accAtPoint = aAccWrap->ChildAtPoint(aX, aY,
michael@0:                                                   Accessible::eDirectChild);
michael@0:   if (!accAtPoint)
michael@0:     return nullptr;
michael@0: 
michael@0:   AtkObject* atkObj = AccessibleWrap::GetAtkObject(accAtPoint);
michael@0:   if (atkObj)
michael@0:     g_object_ref(atkObj);
michael@0:   return atkObj;
michael@0: }
michael@0: 
michael@0: void
michael@0: getExtentsHelper(AccessibleWrap* aAccWrap,
michael@0:                  gint* aX, gint* aY, gint* aWidth, gint* aHeight,
michael@0:                  AtkCoordType aCoordType)
michael@0: {
michael@0:   *aX = *aY = *aWidth = *aHeight = 0;
michael@0: 
michael@0:   if (!aAccWrap || aAccWrap->IsDefunct())
michael@0:     return;
michael@0: 
michael@0:   int32_t x = 0, y = 0, width = 0, height = 0;
michael@0:   // Returned in screen coordinates
michael@0:   nsresult rv = aAccWrap->GetBounds(&x, &y, &width, &height);
michael@0:   if (NS_FAILED(rv))
michael@0:     return;
michael@0: 
michael@0:   if (aCoordType == ATK_XY_WINDOW) {
michael@0:     nsIntPoint winCoords =
michael@0:       nsCoreUtils::GetScreenCoordsForWindow(aAccWrap->GetNode());
michael@0:     x -= winCoords.x;
michael@0:     y -= winCoords.y;
michael@0:   }
michael@0: 
michael@0:   *aX = x;
michael@0:   *aY = y;
michael@0:   *aWidth = width;
michael@0:   *aHeight = height;
michael@0: }
michael@0: 
michael@0: void
michael@0: componentInterfaceInitCB(AtkComponentIface* aIface)
michael@0: {
michael@0:   NS_ASSERTION(aIface, "Invalid Interface");
michael@0:   if(MOZ_UNLIKELY(!aIface))
michael@0:     return;
michael@0: 
michael@0:   /*
michael@0:    * Use default implementation in atk for contains, get_position,
michael@0:    * and get_size
michael@0:    */
michael@0:   aIface->ref_accessible_at_point = refAccessibleAtPointCB;
michael@0:   aIface->get_extents = getExtentsCB;
michael@0:   aIface->grab_focus = grabFocusCB;
michael@0: }