зеркало из https://github.com/mozilla/gecko-dev.git
460 строки
13 KiB
C++
460 строки
13 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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// vim:set et sw=2 sts=2 cin:
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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/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 "nsAutoPtr.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 "nsFormSubmission.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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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),
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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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UnregisterActivityObserver();
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DestroyImageLoadingContent();
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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 (IsInDoc()) {
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StartObjectLoad(aHaveNotified);
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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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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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void
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HTMLObjectElement::GetItemValueText(nsAString& aValue)
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{
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GetData(aValue);
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}
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void
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HTMLObjectElement::SetItemValueText(const nsAString& aValue)
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{
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SetData(aValue);
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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(NS_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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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 && IsInDoc() && mIsDoneAddingChildren &&
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aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::data) {
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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 && IsInDoc() && mIsDoneAddingChildren &&
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aNameSpaceID == kNameSpaceID_None && aAttribute == nsGkAtoms::data) {
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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(nsFormSubmission *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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nsRefPtr<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_URI_ATTR_WITH_BASE(HTMLObjectElement, Code, code, codebase)
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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 = do_QueryInterface(GetContentDocument());
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domDoc.forget(aContentDocument);
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return NS_OK;
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}
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nsIDOMWindow*
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HTMLObjectElement::GetContentWindow()
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{
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nsIDocument* doc = GetContentDocument();
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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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nsRuleData *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);
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}
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NS_IMETHODIMP_(bool)
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HTMLObjectElement::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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HTMLObjectElement::GetAttributeMappingFunction() const
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{
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return &MapAttributesIntoRule;
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}
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void
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HTMLObjectElement::StartObjectLoad(bool aNotify)
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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 (!IsInDoc() || !OwnerDoc()->IsActive()) {
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return;
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}
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LoadObject(aNotify);
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SetIsNetworkCreated(false);
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}
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EventStates
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HTMLObjectElement::IntrinsicState() const
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{
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return nsGenericHTMLFormElement::IntrinsicState() | ObjectState();
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}
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uint32_t
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HTMLObjectElement::GetCapabilities() const
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{
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return nsObjectLoadingContent::GetCapabilities() | eSupportClassID;
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}
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void
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HTMLObjectElement::DestroyContent()
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{
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nsObjectLoadingContent::DestroyContent();
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nsGenericHTMLFormElement::DestroyContent();
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}
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nsresult
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HTMLObjectElement::CopyInnerTo(Element* aDest)
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{
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nsresult rv = nsGenericHTMLFormElement::CopyInnerTo(aDest);
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NS_ENSURE_SUCCESS(rv, rv);
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if (aDest->OwnerDoc()->IsStaticDocument()) {
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CreateStaticClone(static_cast<HTMLObjectElement*>(aDest));
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}
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return rv;
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}
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JSObject*
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HTMLObjectElement::WrapNode(JSContext* aCx)
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{
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JS::Rooted<JSObject*> obj(aCx,
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HTMLObjectElementBinding::Wrap(aCx, this));
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if (!obj) {
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return nullptr;
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}
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SetupProtoChain(aCx, obj);
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return obj;
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}
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} // namespace dom
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} // namespace mozilla
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NS_IMPL_NS_NEW_HTML_ELEMENT_CHECK_PARSER(Object)
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