9386a2f3e1
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
394 lines
12 KiB
C++
394 lines
12 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/HTMLSharedObjectElement.h"
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#include "mozilla/dom/HTMLEmbedElementBinding.h"
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#include "mozilla/dom/HTMLAppletElementBinding.h"
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#include "mozilla/dom/ElementInlines.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 "nsThreadUtils.h"
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#include "nsIScriptError.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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#endif
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#include "mozilla/dom/HTMLObjectElement.h"
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NS_IMPL_NS_NEW_HTML_ELEMENT_CHECK_PARSER(SharedObject)
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namespace mozilla {
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namespace dom {
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HTMLSharedObjectElement::HTMLSharedObjectElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo,
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FromParser aFromParser)
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: nsGenericHTMLElement(aNodeInfo),
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mIsDoneAddingChildren(mNodeInfo->Equals(nsGkAtoms::embed) || !aFromParser)
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{
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RegisterActivityObserver();
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SetIsNetworkCreated(aFromParser == FROM_PARSER_NETWORK);
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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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HTMLSharedObjectElement::~HTMLSharedObjectElement()
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{
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#ifdef XP_MACOSX
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HTMLObjectElement::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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HTMLSharedObjectElement::IsDoneAddingChildren()
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{
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return mIsDoneAddingChildren;
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}
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void
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HTMLSharedObjectElement::DoneAddingChildren(bool aHaveNotified)
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{
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if (!mIsDoneAddingChildren) {
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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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}
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NS_IMPL_CYCLE_COLLECTION_CLASS(HTMLSharedObjectElement)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(HTMLSharedObjectElement,
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nsGenericHTMLElement)
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nsObjectLoadingContent::Traverse(tmp, cb);
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_ADDREF_INHERITED(HTMLSharedObjectElement, Element)
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NS_IMPL_RELEASE_INHERITED(HTMLSharedObjectElement, Element)
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NS_INTERFACE_TABLE_HEAD_CYCLE_COLLECTION_INHERITED(HTMLSharedObjectElement)
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NS_INTERFACE_TABLE_INHERITED(HTMLSharedObjectElement,
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nsIRequestObserver,
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nsIStreamListener,
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nsIFrameLoaderOwner,
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nsIObjectLoadingContent,
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imgINotificationObserver,
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nsIImageLoadingContent,
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imgIOnloadBlocker,
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nsIChannelEventSink)
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NS_INTERFACE_TABLE_TO_MAP_SEGUE
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NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLAppletElement, applet)
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NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLEmbedElement, embed)
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NS_INTERFACE_MAP_END_INHERITING(nsGenericHTMLElement)
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NS_IMPL_ELEMENT_CLONE(HTMLSharedObjectElement)
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#ifdef XP_MACOSX
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NS_IMETHODIMP
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HTMLSharedObjectElement::PostHandleEvent(EventChainPostVisitor& aVisitor)
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{
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HTMLObjectElement::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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void
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HTMLSharedObjectElement::AsyncEventRunning(AsyncEventDispatcher* aEvent)
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{
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nsImageLoadingContent::AsyncEventRunning(aEvent);
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}
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nsresult
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HTMLSharedObjectElement::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 = nsGenericHTMLElement::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 (HTMLSharedObjectElement::*start)() =
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&HTMLSharedObjectElement::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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HTMLSharedObjectElement::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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HTMLObjectElement::OnFocusBlurPlugin(this, false);
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#endif
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nsObjectLoadingContent::UnbindFromTree(aDeep, aNullParent);
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nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
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}
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nsresult
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HTMLSharedObjectElement::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 = nsGenericHTMLElement::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 == URIAttrName()
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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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HTMLSharedObjectElement::IsHTMLFocusable(bool aWithMouse,
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bool *aIsFocusable,
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int32_t *aTabIndex)
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{
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if (mNodeInfo->Equals(nsGkAtoms::embed) || Type() == eType_Plugin) {
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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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// Let the plugin decide, so override.
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return true;
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}
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return nsGenericHTMLElement::IsHTMLFocusable(aWithMouse, aIsFocusable, aTabIndex);
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}
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nsIContent::IMEState
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HTMLSharedObjectElement::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 nsGenericHTMLElement::GetDesiredIMEState();
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}
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NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Align, align)
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NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Alt, alt)
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NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Archive, archive)
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NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Code, code)
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NS_IMPL_URI_ATTR(HTMLSharedObjectElement, CodeBase, codebase)
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NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Height, height)
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NS_IMPL_INT_ATTR(HTMLSharedObjectElement, Hspace, hspace)
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NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Name, name)
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NS_IMPL_URI_ATTR_WITH_BASE(HTMLSharedObjectElement, Object, object, codebase)
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NS_IMPL_URI_ATTR(HTMLSharedObjectElement, Src, src)
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NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Type, type)
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NS_IMPL_INT_ATTR(HTMLSharedObjectElement, Vspace, vspace)
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NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Width, width)
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int32_t
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HTMLSharedObjectElement::TabIndexDefault()
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{
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return -1;
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}
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bool
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HTMLSharedObjectElement::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 nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
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aResult);
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}
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static void
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MapAttributesIntoRuleBase(const nsMappedAttributes *aAttributes,
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GenericSpecifiedValues* aData)
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{
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nsGenericHTMLElement::MapImageBorderAttributeInto(aAttributes, aData);
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nsGenericHTMLElement::MapImageMarginAttributeInto(aAttributes, aData);
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nsGenericHTMLElement::MapImageSizeAttributesInto(aAttributes, aData);
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nsGenericHTMLElement::MapImageAlignAttributeInto(aAttributes, aData);
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}
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static void
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MapAttributesIntoRuleExceptHidden(const nsMappedAttributes *aAttributes,
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GenericSpecifiedValues* aData)
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{
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MapAttributesIntoRuleBase(aAttributes, aData);
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nsGenericHTMLElement::MapCommonAttributesIntoExceptHidden(aAttributes, aData);
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}
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void
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HTMLSharedObjectElement::MapAttributesIntoRule(const nsMappedAttributes *aAttributes,
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GenericSpecifiedValues* aData)
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{
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MapAttributesIntoRuleBase(aAttributes, aData);
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nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
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}
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NS_IMETHODIMP_(bool)
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HTMLSharedObjectElement::IsAttributeMapped(const nsIAtom *aAttribute) const
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{
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static const MappedAttributeEntry* const map[] = {
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sCommonAttributeMap,
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sImageMarginSizeAttributeMap,
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sImageBorderAttributeMap,
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sImageAlignAttributeMap,
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};
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return FindAttributeDependence(aAttribute, map);
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}
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nsMapRuleToAttributesFunc
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HTMLSharedObjectElement::GetAttributeMappingFunction() const
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{
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if (mNodeInfo->Equals(nsGkAtoms::embed)) {
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return &MapAttributesIntoRuleExceptHidden;
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}
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return &MapAttributesIntoRule;
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}
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void
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HTMLSharedObjectElement::StartObjectLoad(bool aNotify, bool aForceLoad)
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{
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// BindToTree can call us asynchronously, and we may be removed from the tree
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// in the interim
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if (!IsInComposedDoc() || !OwnerDoc()->IsActive() ||
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BlockEmbedOrObjectContentLoading()) {
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return;
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}
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LoadObject(aNotify, aForceLoad);
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SetIsNetworkCreated(false);
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}
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EventStates
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HTMLSharedObjectElement::IntrinsicState() const
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{
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return nsGenericHTMLElement::IntrinsicState() | ObjectState();
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}
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uint32_t
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HTMLSharedObjectElement::GetCapabilities() const
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{
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uint32_t capabilities = eSupportPlugins | eAllowPluginSkipChannel;
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if (mNodeInfo->Equals(nsGkAtoms::embed)) {
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capabilities |= eSupportImages | eSupportDocuments;
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}
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return capabilities;
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}
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void
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HTMLSharedObjectElement::DestroyContent()
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{
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nsObjectLoadingContent::DestroyContent();
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nsGenericHTMLElement::DestroyContent();
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}
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nsresult
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HTMLSharedObjectElement::CopyInnerTo(Element* aDest, bool aPreallocateChildren)
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{
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nsresult rv = nsGenericHTMLElement::CopyInnerTo(aDest, aPreallocateChildren);
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NS_ENSURE_SUCCESS(rv, rv);
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if (aDest->OwnerDoc()->IsStaticDocument()) {
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CreateStaticClone(static_cast<HTMLSharedObjectElement*>(aDest));
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}
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return rv;
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}
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JSObject*
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HTMLSharedObjectElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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JSObject* obj;
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if (mNodeInfo->Equals(nsGkAtoms::applet)) {
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obj = HTMLAppletElementBinding::Wrap(aCx, this, aGivenProto);
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} else {
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MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::embed));
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obj = HTMLEmbedElementBinding::Wrap(aCx, this, aGivenProto);
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}
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if (!obj) {
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return nullptr;
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}
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JS::Rooted<JSObject*> rootedObj(aCx, obj);
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SetupProtoChain(aCx, rootedObj);
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return rootedObj;
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}
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nsContentPolicyType
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HTMLSharedObjectElement::GetContentPolicyType() const
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{
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if (mNodeInfo->Equals(nsGkAtoms::applet)) {
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// We use TYPE_INTERNAL_OBJECT for applet too, since it is not exposed
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// through RequestContext yet.
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return nsIContentPolicy::TYPE_INTERNAL_OBJECT;
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} else {
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MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::embed));
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return nsIContentPolicy::TYPE_INTERNAL_EMBED;
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}
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}
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} // namespace dom
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} // namespace mozilla
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