forked from mirrors/gecko-dev
7fdb378650
Currently, attribute and child arrays (implemented in dom/base/nsAttrAndChildArray.h) start out empty. When cloning, the array ends up being resized multiple times in order to add the attributes and children that are being cloned from the original node. This would be quicker if the array was initialized to the correct size in the first place so that resizes are not necessary. However, preallocating space for children is only necessary when performing a deep clone. Therefore, an additional parameter is being added to the Clone, CopyInnerTo, and CloneDocHelper methods to indicate whether preallocation of children should happen. Attributes are copied either way, so that part of the array is preallocated in both cases. MozReview-Commit-ID: 3iVezeAKXnI --HG-- extra : rebase_source : 9c3deec6d7aafd6411044d623d4863637b45fd58
601 lines
17 KiB
C++
601 lines
17 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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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#include "mozilla/EventStates.h"
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#include "mozilla/dom/HTMLFormSubmission.h"
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#include "mozilla/dom/HTMLObjectElement.h"
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#include "mozilla/dom/HTMLObjectElementBinding.h"
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#include "mozilla/dom/ElementInlines.h"
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#include "nsAttrValueInlines.h"
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#include "nsGkAtoms.h"
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#include "nsError.h"
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#include "nsIDocument.h"
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#include "nsIPluginDocument.h"
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#include "nsIDOMDocument.h"
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#include "nsIObjectFrame.h"
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#include "nsNPAPIPluginInstance.h"
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#include "nsIWidget.h"
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#include "nsContentUtils.h"
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#ifdef XP_MACOSX
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#include "mozilla/EventDispatcher.h"
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#include "mozilla/dom/Event.h"
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#include "nsFocusManager.h"
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#endif
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namespace mozilla {
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namespace dom {
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HTMLObjectElement::HTMLObjectElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo,
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FromParser aFromParser)
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: nsGenericHTMLFormElement(aNodeInfo, NS_FORM_OBJECT),
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mIsDoneAddingChildren(!aFromParser)
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{
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RegisterActivityObserver();
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SetIsNetworkCreated(aFromParser == FROM_PARSER_NETWORK);
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// <object> is always barred from constraint validation.
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SetBarredFromConstraintValidation(true);
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// By default we're in the loading state
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AddStatesSilently(NS_EVENT_STATE_LOADING);
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}
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HTMLObjectElement::~HTMLObjectElement()
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{
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#ifdef XP_MACOSX
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OnFocusBlurPlugin(this, false);
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#endif
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UnregisterActivityObserver();
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DestroyImageLoadingContent();
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}
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bool
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HTMLObjectElement::IsInteractiveHTMLContent(bool aIgnoreTabindex) const
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{
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return HasAttr(kNameSpaceID_None, nsGkAtoms::usemap) ||
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nsGenericHTMLFormElement::IsInteractiveHTMLContent(aIgnoreTabindex);
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}
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void
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HTMLObjectElement::AsyncEventRunning(AsyncEventDispatcher* aEvent)
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{
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nsImageLoadingContent::AsyncEventRunning(aEvent);
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}
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bool
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HTMLObjectElement::IsDoneAddingChildren()
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{
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return mIsDoneAddingChildren;
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}
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void
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HTMLObjectElement::DoneAddingChildren(bool aHaveNotified)
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{
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mIsDoneAddingChildren = true;
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// If we're already in a document, we need to trigger the load
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// Otherwise, BindToTree takes care of that.
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if (IsInComposedDoc()) {
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StartObjectLoad(aHaveNotified, false);
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}
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}
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NS_IMPL_CYCLE_COLLECTION_CLASS(HTMLObjectElement)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(HTMLObjectElement,
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nsGenericHTMLFormElement)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mValidity)
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nsObjectLoadingContent::Traverse(tmp, cb);
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(HTMLObjectElement,
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nsGenericHTMLFormElement)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mValidity)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_ADDREF_INHERITED(HTMLObjectElement, Element)
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NS_IMPL_RELEASE_INHERITED(HTMLObjectElement, Element)
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NS_INTERFACE_TABLE_HEAD_CYCLE_COLLECTION_INHERITED(HTMLObjectElement)
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NS_INTERFACE_TABLE_INHERITED(HTMLObjectElement,
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nsIDOMHTMLObjectElement,
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imgINotificationObserver,
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nsIRequestObserver,
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nsIStreamListener,
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nsIFrameLoaderOwner,
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nsIObjectLoadingContent,
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nsIImageLoadingContent,
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imgIOnloadBlocker,
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nsIChannelEventSink,
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nsIConstraintValidation)
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NS_INTERFACE_TABLE_TAIL_INHERITING(nsGenericHTMLFormElement)
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NS_IMPL_ELEMENT_CLONE(HTMLObjectElement)
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// nsIConstraintValidation
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NS_IMPL_NSICONSTRAINTVALIDATION(HTMLObjectElement)
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#ifdef XP_MACOSX
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static nsIWidget* GetWidget(Element* aElement)
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{
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return nsContentUtils::WidgetForDocument(aElement->OwnerDoc());
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}
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Element* HTMLObjectElement::sLastFocused = nullptr; // Weak
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class PluginFocusSetter : public Runnable
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{
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public:
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PluginFocusSetter(nsIWidget* aWidget, Element* aElement)
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: mWidget(aWidget), mElement(aElement)
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{
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}
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NS_IMETHOD Run() override
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{
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if (mElement) {
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HTMLObjectElement::sLastFocused = mElement;
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bool value = true;
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mWidget->SetPluginFocused(value);
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} else if (!HTMLObjectElement::sLastFocused) {
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bool value = false;
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mWidget->SetPluginFocused(value);
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}
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return NS_OK;
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}
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private:
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nsCOMPtr<nsIWidget> mWidget;
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nsCOMPtr<Element> mElement;
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};
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void
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HTMLObjectElement::OnFocusBlurPlugin(Element* aElement, bool aFocus)
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{
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// In general we don't want to call nsIWidget::SetPluginFocused() for any
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// Element that doesn't have a plugin running. But if SetPluginFocused(true)
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// was just called for aElement while it had a plugin running, we want to
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// make sure nsIWidget::SetPluginFocused(false) gets called for it now, even
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// if aFocus is true.
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if (aFocus) {
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nsCOMPtr<nsIObjectLoadingContent> olc = do_QueryInterface(aElement);
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bool hasRunningPlugin = false;
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if (olc) {
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hasRunningPlugin =
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static_cast<nsObjectLoadingContent*>(olc.get())->HasRunningPlugin();
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}
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if (!hasRunningPlugin) {
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aFocus = false;
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}
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}
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if (aFocus || aElement == sLastFocused) {
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if (!aFocus) {
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sLastFocused = nullptr;
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}
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nsIWidget* widget = GetWidget(aElement);
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if (widget) {
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nsContentUtils::AddScriptRunner(
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new PluginFocusSetter(widget, aFocus ? aElement : nullptr));
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}
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}
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}
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void
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HTMLObjectElement::HandlePluginCrashed(Element* aElement)
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{
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OnFocusBlurPlugin(aElement, false);
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}
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void
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HTMLObjectElement::HandlePluginInstantiated(Element* aElement)
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{
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// If aElement is already focused when a plugin is instantiated, we need
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// to initiate a call to nsIWidget::SetPluginFocused(true). Otherwise
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// keyboard input won't work in a click-to-play plugin until aElement
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// loses focus and regains it.
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nsIContent* focusedContent = nullptr;
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nsFocusManager *fm = nsFocusManager::GetFocusManager();
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if (fm) {
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focusedContent = fm->GetFocusedContent();
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}
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if (SameCOMIdentity(focusedContent, aElement)) {
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OnFocusBlurPlugin(aElement, true);
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}
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}
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void
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HTMLObjectElement::HandleFocusBlurPlugin(Element* aElement,
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WidgetEvent* aEvent)
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{
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if (!aEvent->IsTrusted()) {
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return;
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}
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switch (aEvent->mMessage) {
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case eFocus: {
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OnFocusBlurPlugin(aElement, true);
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break;
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}
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case eBlur: {
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OnFocusBlurPlugin(aElement, false);
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break;
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}
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default:
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break;
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}
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}
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NS_IMETHODIMP
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HTMLObjectElement::PostHandleEvent(EventChainPostVisitor& aVisitor)
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{
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HandleFocusBlurPlugin(this, aVisitor.mEvent);
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return NS_OK;
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}
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#endif // #ifdef XP_MACOSX
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NS_IMETHODIMP
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HTMLObjectElement::GetForm(nsIDOMHTMLFormElement **aForm)
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{
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return nsGenericHTMLFormElement::GetForm(aForm);
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}
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nsresult
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HTMLObjectElement::BindToTree(nsIDocument *aDocument,
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nsIContent *aParent,
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nsIContent *aBindingParent,
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bool aCompileEventHandlers)
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{
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nsresult rv = nsGenericHTMLFormElement::BindToTree(aDocument, aParent,
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aBindingParent,
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aCompileEventHandlers);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = nsObjectLoadingContent::BindToTree(aDocument, aParent,
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aBindingParent,
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aCompileEventHandlers);
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NS_ENSURE_SUCCESS(rv, rv);
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// Don't kick off load from being bound to a plugin document - the plugin
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// document will call nsObjectLoadingContent::InitializeFromChannel() for the
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// initial load.
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nsCOMPtr<nsIPluginDocument> pluginDoc = do_QueryInterface(aDocument);
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// If we already have all the children, start the load.
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if (mIsDoneAddingChildren && !pluginDoc) {
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void (HTMLObjectElement::*start)() = &HTMLObjectElement::StartObjectLoad;
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nsContentUtils::AddScriptRunner(NewRunnableMethod(this, start));
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}
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return NS_OK;
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}
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void
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HTMLObjectElement::UnbindFromTree(bool aDeep,
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bool aNullParent)
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{
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#ifdef XP_MACOSX
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// When a page is reloaded (when an nsIDocument's content is removed), the
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// focused element isn't necessarily sent an eBlur event. See
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// nsFocusManager::ContentRemoved(). This means that a widget may think it
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// still contains a focused plugin when it doesn't -- which in turn can
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// disable text input in the browser window. See bug 1137229.
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OnFocusBlurPlugin(this, false);
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#endif
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nsObjectLoadingContent::UnbindFromTree(aDeep, aNullParent);
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nsGenericHTMLFormElement::UnbindFromTree(aDeep, aNullParent);
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}
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nsresult
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HTMLObjectElement::SetAttr(int32_t aNameSpaceID, nsIAtom *aName,
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nsIAtom *aPrefix, const nsAString &aValue,
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bool aNotify)
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{
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nsresult rv = nsGenericHTMLFormElement::SetAttr(aNameSpaceID, aName, aPrefix,
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aValue, aNotify);
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NS_ENSURE_SUCCESS(rv, rv);
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// if aNotify is false, we are coming from the parser or some such place;
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// we'll get bound after all the attributes have been set, so we'll do the
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// object load from BindToTree/DoneAddingChildren.
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// Skip the LoadObject call in that case.
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// We also don't want to start loading the object when we're not yet in
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// a document, just in case that the caller wants to set additional
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// attributes before inserting the node into the document.
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if (aNotify && IsInComposedDoc() && mIsDoneAddingChildren &&
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aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::data &&
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!BlockEmbedOrObjectContentLoading()) {
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return LoadObject(aNotify, true);
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}
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return NS_OK;
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}
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nsresult
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HTMLObjectElement::UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
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bool aNotify)
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{
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nsresult rv = nsGenericHTMLFormElement::UnsetAttr(aNameSpaceID,
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aAttribute, aNotify);
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NS_ENSURE_SUCCESS(rv, rv);
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// See comment in SetAttr
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if (aNotify && IsInComposedDoc() && mIsDoneAddingChildren &&
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aNameSpaceID == kNameSpaceID_None && aAttribute == nsGkAtoms::data &&
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!BlockEmbedOrObjectContentLoading()) {
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return LoadObject(aNotify, true);
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}
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return NS_OK;
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}
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bool
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HTMLObjectElement::IsFocusableForTabIndex()
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{
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nsIDocument* doc = GetComposedDoc();
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if (!doc || doc->HasFlag(NODE_IS_EDITABLE)) {
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return false;
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}
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return IsEditableRoot() ||
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(Type() == eType_Document &&
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nsContentUtils::IsSubDocumentTabbable(this));
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}
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bool
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HTMLObjectElement::IsHTMLFocusable(bool aWithMouse,
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bool *aIsFocusable, int32_t *aTabIndex)
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{
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// TODO: this should probably be managed directly by IsHTMLFocusable.
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// See bug 597242.
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nsIDocument *doc = GetComposedDoc();
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if (!doc || doc->HasFlag(NODE_IS_EDITABLE)) {
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if (aTabIndex) {
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GetTabIndex(aTabIndex);
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}
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*aIsFocusable = false;
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return false;
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}
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// This method doesn't call nsGenericHTMLFormElement intentionally.
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// TODO: It should probably be changed when bug 597242 will be fixed.
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if (Type() == eType_Plugin || IsEditableRoot() ||
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(Type() == eType_Document && nsContentUtils::IsSubDocumentTabbable(this))) {
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// Has plugin content: let the plugin decide what to do in terms of
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// internal focus from mouse clicks
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if (aTabIndex) {
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GetTabIndex(aTabIndex);
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}
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*aIsFocusable = true;
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return false;
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}
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// TODO: this should probably be managed directly by IsHTMLFocusable.
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// See bug 597242.
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const nsAttrValue* attrVal = mAttrsAndChildren.GetAttr(nsGkAtoms::tabindex);
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*aIsFocusable = attrVal && attrVal->Type() == nsAttrValue::eInteger;
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if (aTabIndex && *aIsFocusable) {
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*aTabIndex = attrVal->GetIntegerValue();
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}
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return false;
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}
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nsIContent::IMEState
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HTMLObjectElement::GetDesiredIMEState()
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{
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if (Type() == eType_Plugin) {
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return IMEState(IMEState::PLUGIN);
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}
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return nsGenericHTMLFormElement::GetDesiredIMEState();
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}
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NS_IMETHODIMP
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HTMLObjectElement::Reset()
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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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HTMLObjectElement::SubmitNamesValues(HTMLFormSubmission *aFormSubmission)
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{
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nsAutoString name;
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if (!GetAttr(kNameSpaceID_None, nsGkAtoms::name, name)) {
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// No name, don't submit.
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return NS_OK;
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}
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nsIFrame* frame = GetPrimaryFrame();
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nsIObjectFrame *objFrame = do_QueryFrame(frame);
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if (!objFrame) {
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// No frame, nothing to submit.
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return NS_OK;
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}
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RefPtr<nsNPAPIPluginInstance> pi;
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objFrame->GetPluginInstance(getter_AddRefs(pi));
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if (!pi)
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return NS_OK;
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nsAutoString value;
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nsresult rv = pi->GetFormValue(value);
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NS_ENSURE_SUCCESS(rv, rv);
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return aFormSubmission->AddNameValuePair(name, value);
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}
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NS_IMPL_STRING_ATTR(HTMLObjectElement, Align, align)
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NS_IMPL_STRING_ATTR(HTMLObjectElement, Archive, archive)
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NS_IMPL_STRING_ATTR(HTMLObjectElement, Border, border)
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NS_IMPL_STRING_ATTR(HTMLObjectElement, Code, code)
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NS_IMPL_URI_ATTR(HTMLObjectElement, CodeBase, codebase)
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NS_IMPL_STRING_ATTR(HTMLObjectElement, CodeType, codetype)
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NS_IMPL_URI_ATTR_WITH_BASE(HTMLObjectElement, Data, data, codebase)
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NS_IMPL_BOOL_ATTR(HTMLObjectElement, Declare, declare)
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NS_IMPL_STRING_ATTR(HTMLObjectElement, Height, height)
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NS_IMPL_INT_ATTR(HTMLObjectElement, Hspace, hspace)
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NS_IMPL_STRING_ATTR(HTMLObjectElement, Name, name)
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NS_IMPL_STRING_ATTR(HTMLObjectElement, Standby, standby)
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NS_IMPL_STRING_ATTR(HTMLObjectElement, Type, type)
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NS_IMPL_STRING_ATTR(HTMLObjectElement, UseMap, usemap)
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NS_IMPL_INT_ATTR(HTMLObjectElement, Vspace, vspace)
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NS_IMPL_STRING_ATTR(HTMLObjectElement, Width, width)
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int32_t
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HTMLObjectElement::TabIndexDefault()
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{
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return IsFocusableForTabIndex() ? 0 : -1;
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}
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NS_IMETHODIMP
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HTMLObjectElement::GetContentDocument(nsIDOMDocument **aContentDocument)
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{
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NS_ENSURE_ARG_POINTER(aContentDocument);
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nsCOMPtr<nsIDOMDocument> domDoc =
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do_QueryInterface(GetContentDocument(*nsContentUtils::SubjectPrincipal()));
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domDoc.forget(aContentDocument);
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return NS_OK;
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}
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nsPIDOMWindowOuter*
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HTMLObjectElement::GetContentWindow(nsIPrincipal& aSubjectPrincipal)
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{
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nsIDocument* doc = GetContentDocument(aSubjectPrincipal);
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if (doc) {
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return doc->GetWindow();
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}
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return nullptr;
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}
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bool
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HTMLObjectElement::ParseAttribute(int32_t aNamespaceID,
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nsIAtom *aAttribute,
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const nsAString &aValue,
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nsAttrValue &aResult)
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{
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if (aNamespaceID == kNameSpaceID_None) {
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if (aAttribute == nsGkAtoms::align) {
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return ParseAlignValue(aValue, aResult);
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}
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if (ParseImageAttribute(aAttribute, aValue, aResult)) {
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return true;
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}
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}
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return nsGenericHTMLFormElement::ParseAttribute(aNamespaceID, aAttribute,
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aValue, aResult);
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}
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void
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HTMLObjectElement::MapAttributesIntoRule(const nsMappedAttributes *aAttributes,
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GenericSpecifiedValues *aData)
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{
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nsGenericHTMLFormElement::MapImageAlignAttributeInto(aAttributes, aData);
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nsGenericHTMLFormElement::MapImageBorderAttributeInto(aAttributes, aData);
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nsGenericHTMLFormElement::MapImageMarginAttributeInto(aAttributes, aData);
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nsGenericHTMLFormElement::MapImageSizeAttributesInto(aAttributes, aData);
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nsGenericHTMLFormElement::MapCommonAttributesInto(aAttributes, aData);
|
|
}
|
|
|
|
NS_IMETHODIMP_(bool)
|
|
HTMLObjectElement::IsAttributeMapped(const nsIAtom *aAttribute) const
|
|
{
|
|
static const MappedAttributeEntry* const map[] = {
|
|
sCommonAttributeMap,
|
|
sImageMarginSizeAttributeMap,
|
|
sImageBorderAttributeMap,
|
|
sImageAlignAttributeMap,
|
|
};
|
|
|
|
return FindAttributeDependence(aAttribute, map);
|
|
}
|
|
|
|
|
|
nsMapRuleToAttributesFunc
|
|
HTMLObjectElement::GetAttributeMappingFunction() const
|
|
{
|
|
return &MapAttributesIntoRule;
|
|
}
|
|
|
|
void
|
|
HTMLObjectElement::StartObjectLoad(bool aNotify, bool aForce)
|
|
{
|
|
// BindToTree can call us asynchronously, and we may be removed from the tree
|
|
// in the interim
|
|
if (!IsInComposedDoc() || !OwnerDoc()->IsActive() ||
|
|
BlockEmbedOrObjectContentLoading()) {
|
|
return;
|
|
}
|
|
|
|
LoadObject(aNotify, aForce);
|
|
SetIsNetworkCreated(false);
|
|
}
|
|
|
|
EventStates
|
|
HTMLObjectElement::IntrinsicState() const
|
|
{
|
|
return nsGenericHTMLFormElement::IntrinsicState() | ObjectState();
|
|
}
|
|
|
|
uint32_t
|
|
HTMLObjectElement::GetCapabilities() const
|
|
{
|
|
return nsObjectLoadingContent::GetCapabilities() | eSupportClassID;
|
|
}
|
|
|
|
void
|
|
HTMLObjectElement::DestroyContent()
|
|
{
|
|
nsObjectLoadingContent::DestroyContent();
|
|
nsGenericHTMLFormElement::DestroyContent();
|
|
}
|
|
|
|
nsresult
|
|
HTMLObjectElement::CopyInnerTo(Element* aDest, bool aPreallocateChildren)
|
|
{
|
|
nsresult rv = nsGenericHTMLFormElement::CopyInnerTo(aDest,
|
|
aPreallocateChildren);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (aDest->OwnerDoc()->IsStaticDocument()) {
|
|
CreateStaticClone(static_cast<HTMLObjectElement*>(aDest));
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
JSObject*
|
|
HTMLObjectElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
|
|
{
|
|
JS::Rooted<JSObject*> obj(aCx,
|
|
HTMLObjectElementBinding::Wrap(aCx, this, aGivenProto));
|
|
if (!obj) {
|
|
return nullptr;
|
|
}
|
|
SetupProtoChain(aCx, obj);
|
|
return obj;
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
NS_IMPL_NS_NEW_HTML_ELEMENT_CHECK_PARSER(Object)
|