mirror of
https://github.com/Feodor2/Mypal68.git
synced 2025-06-18 23:05:40 -04:00
82 lines
2.2 KiB
C++
82 lines
2.2 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 "nsDocShellEnumerator.h"
|
|
|
|
#include "nsDocShell.h"
|
|
|
|
nsDocShellEnumerator::nsDocShellEnumerator(
|
|
nsDocShellEnumerator::EnumerationDirection aDirection,
|
|
int32_t aDocShellType, nsDocShell& aRootItem)
|
|
: mRootItem(&aRootItem),
|
|
mDocShellType(aDocShellType),
|
|
mDirection(aDirection) {}
|
|
|
|
nsresult nsDocShellEnumerator::BuildDocShellArray(
|
|
nsTArray<RefPtr<nsIDocShell>>& aItemArray) {
|
|
MOZ_ASSERT(mRootItem);
|
|
|
|
aItemArray.Clear();
|
|
|
|
if (mDirection == EnumerationDirection::Forwards) {
|
|
return BuildArrayRecursiveForwards(mRootItem, aItemArray);
|
|
}
|
|
MOZ_ASSERT(mDirection == EnumerationDirection::Backwards);
|
|
return BuildArrayRecursiveBackwards(mRootItem, aItemArray);
|
|
}
|
|
|
|
nsresult nsDocShellEnumerator::BuildArrayRecursiveForwards(
|
|
nsDocShell* aItem, nsTArray<RefPtr<nsIDocShell>>& aItemArray) {
|
|
nsresult rv;
|
|
|
|
// add this item to the array
|
|
if (mDocShellType == nsIDocShellTreeItem::typeAll ||
|
|
aItem->ItemType() == mDocShellType) {
|
|
if (!aItemArray.AppendElement(aItem, fallible)) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
|
|
int32_t numChildren = aItem->ChildCount();
|
|
|
|
for (int32_t i = 0; i < numChildren; ++i) {
|
|
RefPtr<nsDocShell> curChild = aItem->GetInProcessChildAt(i);
|
|
MOZ_ASSERT(curChild);
|
|
|
|
rv = BuildArrayRecursiveForwards(curChild, aItemArray);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsDocShellEnumerator::BuildArrayRecursiveBackwards(
|
|
nsDocShell* aItem, nsTArray<RefPtr<nsIDocShell>>& aItemArray) {
|
|
nsresult rv;
|
|
|
|
uint32_t numChildren = aItem->ChildCount();
|
|
|
|
for (int32_t i = numChildren - 1; i >= 0; --i) {
|
|
RefPtr<nsDocShell> curChild = aItem->GetInProcessChildAt(i);
|
|
MOZ_ASSERT(curChild);
|
|
|
|
rv = BuildArrayRecursiveBackwards(curChild, aItemArray);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// add this item to the array
|
|
if (mDocShellType == nsIDocShellTreeItem::typeAll ||
|
|
aItem->ItemType() == mDocShellType) {
|
|
if (!aItemArray.AppendElement(aItem)) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|