82 lines
1.9 KiB
C++
82 lines
1.9 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "EmbeddedObjCollector.h"
|
|
|
|
#include "Accessible.h"
|
|
|
|
using namespace mozilla::a11y;
|
|
|
|
uint32_t
|
|
EmbeddedObjCollector::Count()
|
|
{
|
|
EnsureNGetIndex(nullptr);
|
|
return mObjects.Length();
|
|
}
|
|
|
|
Accessible*
|
|
EmbeddedObjCollector::GetAccessibleAt(uint32_t aIndex)
|
|
{
|
|
Accessible* accessible = mObjects.SafeElementAt(aIndex, nullptr);
|
|
if (accessible)
|
|
return accessible;
|
|
|
|
return EnsureNGetObject(aIndex);
|
|
}
|
|
|
|
Accessible*
|
|
EmbeddedObjCollector::EnsureNGetObject(uint32_t aIndex)
|
|
{
|
|
uint32_t childCount = mRoot->ChildCount();
|
|
while (mRootChildIdx < childCount) {
|
|
Accessible* child = mRoot->GetChildAt(mRootChildIdx++);
|
|
if (child->IsText())
|
|
continue;
|
|
|
|
AppendObject(child);
|
|
if (mObjects.Length() - 1 == aIndex)
|
|
return mObjects[aIndex];
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
int32_t
|
|
EmbeddedObjCollector::EnsureNGetIndex(Accessible* aAccessible)
|
|
{
|
|
uint32_t childCount = mRoot->ChildCount();
|
|
while (mRootChildIdx < childCount) {
|
|
Accessible* child = mRoot->GetChildAt(mRootChildIdx++);
|
|
if (child->IsText())
|
|
continue;
|
|
|
|
AppendObject(child);
|
|
if (child == aAccessible)
|
|
return mObjects.Length() - 1;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
int32_t
|
|
EmbeddedObjCollector::GetIndexAt(Accessible* aAccessible)
|
|
{
|
|
if (aAccessible->mParent != mRoot)
|
|
return -1;
|
|
|
|
MOZ_ASSERT(!aAccessible->IsProxy());
|
|
if (aAccessible->mInt.mIndexOfEmbeddedChild != -1)
|
|
return aAccessible->mInt.mIndexOfEmbeddedChild;
|
|
|
|
return !aAccessible->IsText() ? EnsureNGetIndex(aAccessible) : -1;
|
|
}
|
|
|
|
void
|
|
EmbeddedObjCollector::AppendObject(Accessible* aAccessible)
|
|
{
|
|
MOZ_ASSERT(!aAccessible->IsProxy());
|
|
aAccessible->mInt.mIndexOfEmbeddedChild = mObjects.Length();
|
|
mObjects.AppendElement(aAccessible);
|
|
}
|