зеркало из https://github.com/mozilla/gecko-dev.git
156 строки
3.8 KiB
C++
156 строки
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// Local Includes
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#include "nsDOMWindowList.h"
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// Helper classes
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#include "nsCOMPtr.h"
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// Interfaces needed
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#include "nsIDocument.h"
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#include "nsIDOMDocument.h"
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#include "nsIDOMWindow.h"
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#include "nsIDocShell.h"
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#include "nsIDocShellTreeItem.h"
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#include "nsIDocShellTreeNode.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsIInterfaceRequestorUtils.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsIWebNavigation.h"
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nsDOMWindowList::nsDOMWindowList(nsIDocShell *aDocShell)
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{
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SetDocShell(aDocShell);
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}
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nsDOMWindowList::~nsDOMWindowList()
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{
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}
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NS_IMPL_ADDREF(nsDOMWindowList)
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NS_IMPL_RELEASE(nsDOMWindowList)
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NS_INTERFACE_MAP_BEGIN(nsDOMWindowList)
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NS_INTERFACE_MAP_ENTRY(nsIDOMWindowCollection)
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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NS_IMETHODIMP
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nsDOMWindowList::SetDocShell(nsIDocShell* aDocShell)
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{
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nsCOMPtr<nsIDocShellTreeNode> docShellAsNode(do_QueryInterface(aDocShell));
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mDocShellNode = docShellAsNode; // Weak Reference
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMWindowList::GetLength(PRUint32* aLength)
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{
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nsresult rv = NS_OK;
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*aLength = 0;
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nsCOMPtr<nsIWebNavigation> shellAsNav(do_QueryInterface(mDocShellNode));
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if (shellAsNav) {
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nsCOMPtr<nsIDOMDocument> domdoc;
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shellAsNav->GetDocument(getter_AddRefs(domdoc));
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nsCOMPtr<nsIDocument> doc(do_QueryInterface(domdoc));
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if (doc) {
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doc->FlushPendingNotifications(Flush_ContentAndNotify);
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}
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}
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// The above flush might cause mDocShellNode to be cleared, so we
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// need to check that it's still non-null here.
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if (mDocShellNode) {
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PRInt32 length;
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rv = mDocShellNode->GetChildCount(&length);
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*aLength = length;
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}
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return rv;
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}
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NS_IMETHODIMP
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nsDOMWindowList::Item(PRUint32 aIndex, nsIDOMWindow** aReturn)
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{
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nsCOMPtr<nsIDocShellTreeItem> item;
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*aReturn = nullptr;
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nsCOMPtr<nsIWebNavigation> shellAsNav = do_QueryInterface(mDocShellNode);
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if (shellAsNav) {
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nsCOMPtr<nsIDOMDocument> domdoc;
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shellAsNav->GetDocument(getter_AddRefs(domdoc));
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nsCOMPtr<nsIDocument> doc = do_QueryInterface(domdoc);
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if (doc) {
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doc->FlushPendingNotifications(Flush_ContentAndNotify);
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}
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}
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// The above flush might cause mDocShellNode to be cleared, so we
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// need to check that it's still non-null here.
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if (mDocShellNode) {
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mDocShellNode->GetChildAt(aIndex, getter_AddRefs(item));
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nsCOMPtr<nsIScriptGlobalObject> globalObject(do_GetInterface(item));
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NS_ASSERTION(!item || (item && globalObject),
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"Couldn't get to the globalObject");
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if (globalObject) {
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CallQueryInterface(globalObject, aReturn);
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMWindowList::NamedItem(const nsAString& aName, nsIDOMWindow** aReturn)
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{
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nsCOMPtr<nsIDocShellTreeItem> item;
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*aReturn = nullptr;
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nsCOMPtr<nsIWebNavigation> shellAsNav(do_QueryInterface(mDocShellNode));
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if (shellAsNav) {
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nsCOMPtr<nsIDOMDocument> domdoc;
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shellAsNav->GetDocument(getter_AddRefs(domdoc));
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nsCOMPtr<nsIDocument> doc(do_QueryInterface(domdoc));
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if (doc) {
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doc->FlushPendingNotifications(Flush_ContentAndNotify);
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}
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}
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// The above flush might cause mDocShellNode to be cleared, so we
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// need to check that it's still non-null here.
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if (mDocShellNode) {
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mDocShellNode->FindChildWithName(PromiseFlatString(aName).get(),
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false, false, nullptr,
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nullptr, getter_AddRefs(item));
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nsCOMPtr<nsIScriptGlobalObject> globalObject(do_GetInterface(item));
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if (globalObject) {
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CallQueryInterface(globalObject.get(), aReturn);
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}
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}
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return NS_OK;
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}
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