зеркало из https://github.com/mozilla/gecko-dev.git
2861 строка
96 KiB
C++
2861 строка
96 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/ArrayUtils.h"
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#include "mozilla/DeclarationBlock.h"
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#include "mozilla/EventDispatcher.h"
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#include "mozilla/EventListenerManager.h"
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#include "mozilla/EventStateManager.h"
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#include "mozilla/EventStates.h"
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#include "mozilla/HTMLEditor.h"
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#include "mozilla/MappedDeclarations.h"
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#include "mozilla/Likely.h"
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#include "mozilla/MouseEvents.h"
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#include "mozilla/PresShell.h"
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#include "mozilla/TextEditor.h"
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#include "mozilla/StaticPrefs_browser.h"
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#include "mozilla/StaticPrefs_layout.h"
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#include "nscore.h"
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#include "nsGenericHTMLElement.h"
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#include "nsAttrValueInlines.h"
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#include "nsCOMPtr.h"
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#include "nsAtom.h"
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#include "nsQueryObject.h"
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#include "nsIContentInlines.h"
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#include "mozilla/dom/BindContext.h"
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#include "mozilla/dom/Document.h"
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#include "nsMappedAttributes.h"
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#include "nsHTMLStyleSheet.h"
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#include "nsPIDOMWindow.h"
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#include "nsEscape.h"
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#include "nsIFrameInlines.h"
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#include "nsIScrollableFrame.h"
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#include "nsView.h"
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#include "nsViewManager.h"
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#include "nsIWidget.h"
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#include "nsRange.h"
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#include "nsPresContext.h"
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#include "nsNameSpaceManager.h"
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#include "nsError.h"
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#include "nsIPrincipal.h"
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#include "nsContainerFrame.h"
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#include "nsStyleUtil.h"
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#include "ReferrerInfo.h"
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#include "mozilla/PresState.h"
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#include "nsILayoutHistoryState.h"
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#include "nsHTMLParts.h"
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#include "nsContentUtils.h"
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#include "mozilla/dom/DirectionalityUtils.h"
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#include "mozilla/dom/DocumentOrShadowRoot.h"
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#include "nsString.h"
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#include "nsUnicharUtils.h"
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#include "nsGkAtoms.h"
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#include "nsDOMCSSDeclaration.h"
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#include "nsITextControlFrame.h"
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#include "nsIForm.h"
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#include "nsIFormControl.h"
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#include "mozilla/dom/HTMLFormElement.h"
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#include "nsFocusManager.h"
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#include "nsAttrValueOrString.h"
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#include "mozilla/InternalMutationEvent.h"
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#include "nsDOMStringMap.h"
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#include "nsLayoutUtils.h"
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#include "mozAutoDocUpdate.h"
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#include "nsHtml5Module.h"
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#include "mozilla/dom/ElementInlines.h"
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#include "HTMLFieldSetElement.h"
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#include "nsTextNode.h"
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#include "HTMLBRElement.h"
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#include "HTMLMenuElement.h"
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#include "nsDOMMutationObserver.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/dom/FromParser.h"
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#include "mozilla/dom/Link.h"
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#include "mozilla/BloomFilter.h"
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#include "mozilla/dom/ScriptLoader.h"
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#include "nsVariant.h"
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#include "nsDOMTokenList.h"
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#include "nsThreadUtils.h"
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#include "nsTextFragment.h"
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#include "mozilla/dom/BindingUtils.h"
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#include "mozilla/dom/MouseEventBinding.h"
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#include "mozilla/dom/TouchEvent.h"
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#include "mozilla/ErrorResult.h"
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#include "nsHTMLDocument.h"
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#include "nsGlobalWindow.h"
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#include "mozilla/dom/HTMLBodyElement.h"
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#include "imgIContainer.h"
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#include "nsComputedDOMStyle.h"
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#include "mozilla/dom/HTMLLabelElement.h"
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#include "mozilla/dom/HTMLInputElement.h"
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#include "mozilla/dom/CustomElementRegistry.h"
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#include "mozilla/dom/ElementInternals.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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nsresult nsGenericHTMLElement::CopyInnerTo(Element* aDst) {
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MOZ_ASSERT(!aDst->GetUncomposedDoc(),
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"Should not CopyInnerTo an Element in a document");
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auto reparse = aDst->OwnerDoc() == OwnerDoc() ? ReparseAttributes::No
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: ReparseAttributes::Yes;
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return Element::CopyInnerTo(aDst, reparse);
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}
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static const nsAttrValue::EnumTable kDirTable[] = {
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{"ltr", eDir_LTR}, {"rtl", eDir_RTL}, {"auto", eDir_Auto}, {nullptr, 0}};
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void nsGenericHTMLElement::AddToNameTable(nsAtom* aName) {
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MOZ_ASSERT(HasName(), "Node doesn't have name?");
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Document* doc = GetUncomposedDoc();
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if (doc && !IsInAnonymousSubtree()) {
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doc->AddToNameTable(this, aName);
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}
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}
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void nsGenericHTMLElement::RemoveFromNameTable() {
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if (HasName() && CanHaveName(NodeInfo()->NameAtom())) {
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if (Document* doc = GetUncomposedDoc()) {
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doc->RemoveFromNameTable(this,
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GetParsedAttr(nsGkAtoms::name)->GetAtomValue());
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}
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}
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}
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void nsGenericHTMLElement::GetAccessKeyLabel(nsString& aLabel) {
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nsAutoString suffix;
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GetAccessKey(suffix);
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if (!suffix.IsEmpty()) {
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EventStateManager::GetAccessKeyLabelPrefix(this, aLabel);
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aLabel.Append(suffix);
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}
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}
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static bool IsOffsetParent(nsIFrame* aFrame) {
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LayoutFrameType frameType = aFrame->Type();
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if (frameType == LayoutFrameType::TableCell ||
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frameType == LayoutFrameType::Table) {
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// Per the IDL for Element, only td, th, and table are acceptable
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// offsetParents apart from body or positioned elements; we need to check
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// the content type as well as the frame type so we ignore anonymous tables
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// created by an element with display: table-cell with no actual table
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nsIContent* content = aFrame->GetContent();
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return content->IsAnyOfHTMLElements(nsGkAtoms::table, nsGkAtoms::td,
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nsGkAtoms::th);
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}
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return false;
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}
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struct OffsetResult {
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Element* mParent = nullptr;
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CSSIntRect mRect;
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};
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static OffsetResult GetUnretargetedOffsetsFor(const Element& aElement) {
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nsIFrame* frame = aElement.GetPrimaryFrame();
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if (!frame) {
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return {};
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}
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nsIFrame* styleFrame = nsLayoutUtils::GetStyleFrame(frame);
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nsIFrame* parent = frame->GetParent();
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nsPoint origin(0, 0);
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nsIContent* offsetParent = nullptr;
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Element* docElement = aElement.GetComposedDoc()->GetRootElement();
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nsIContent* content = frame->GetContent();
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if (content &&
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(content->IsHTMLElement(nsGkAtoms::body) || content == docElement)) {
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parent = frame;
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} else {
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const bool isPositioned = styleFrame->IsAbsPosContainingBlock();
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const bool isAbsolutelyPositioned = styleFrame->IsAbsolutelyPositioned();
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origin += frame->GetPositionIgnoringScrolling();
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for (; parent; parent = parent->GetParent()) {
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content = parent->GetContent();
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// Stop at the first ancestor that is positioned.
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if (parent->IsAbsPosContainingBlock()) {
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offsetParent = content;
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break;
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}
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// Add the parent's origin to our own to get to the
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// right coordinate system.
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const bool isOffsetParent = !isPositioned && IsOffsetParent(parent);
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if (!isOffsetParent) {
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origin += parent->GetPositionIgnoringScrolling();
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}
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if (content) {
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// If we've hit the document element, break here.
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if (content == docElement) {
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break;
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}
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// Break if the ancestor frame type makes it suitable as offset parent
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// and this element is *not* positioned or if we found the body element.
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if (isOffsetParent || content->IsHTMLElement(nsGkAtoms::body)) {
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offsetParent = content;
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break;
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}
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}
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}
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if (isAbsolutelyPositioned && !offsetParent) {
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// If this element is absolutely positioned, but we don't have
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// an offset parent it means this element is an absolutely
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// positioned child that's not nested inside another positioned
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// element, in this case the element's frame's parent is the
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// frame for the HTML element so we fail to find the body in the
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// parent chain. We want the offset parent in this case to be
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// the body, so we just get the body element from the document.
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//
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// We use GetBodyElement() here, not GetBody(), because we don't want to
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// end up with framesets here.
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offsetParent = aElement.GetComposedDoc()->GetBodyElement();
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}
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}
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// Make the position relative to the padding edge.
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if (parent) {
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const nsStyleBorder* border = parent->StyleBorder();
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origin.x -= border->GetComputedBorderWidth(eSideLeft);
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origin.y -= border->GetComputedBorderWidth(eSideTop);
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}
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// Get the union of all rectangles in this and continuation frames.
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// It doesn't really matter what we use as aRelativeTo here, since
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// we only care about the size. We just have to use something non-null.
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nsRect rcFrame = nsLayoutUtils::GetAllInFlowRectsUnion(frame, frame);
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rcFrame.MoveTo(origin);
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return {Element::FromNodeOrNull(offsetParent),
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CSSIntRect::FromAppUnitsRounded(rcFrame)};
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}
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static bool ShouldBeRetargeted(const Element& aReferenceElement,
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const Element& aElementToMaybeRetarget) {
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ShadowRoot* shadow = aElementToMaybeRetarget.GetContainingShadow();
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if (!shadow) {
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return false;
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}
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for (ShadowRoot* scope = aReferenceElement.GetContainingShadow(); scope;
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scope = scope->Host()->GetContainingShadow()) {
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if (scope == shadow) {
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return false;
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}
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}
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return true;
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}
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Element* nsGenericHTMLElement::GetOffsetRect(CSSIntRect& aRect) {
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aRect = CSSIntRect();
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if (!GetPrimaryFrame(FlushType::Layout)) {
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return nullptr;
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}
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OffsetResult thisResult = GetUnretargetedOffsetsFor(*this);
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aRect = thisResult.mRect;
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Element* parent = thisResult.mParent;
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while (parent && ShouldBeRetargeted(*this, *parent)) {
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OffsetResult result = GetUnretargetedOffsetsFor(*parent);
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aRect += result.mRect.TopLeft();
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parent = result.mParent;
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}
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return parent;
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}
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bool nsGenericHTMLElement::Spellcheck() {
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// Has the state has been explicitly set?
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nsIContent* node;
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for (node = this; node; node = node->GetParent()) {
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if (node->IsHTMLElement()) {
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static Element::AttrValuesArray strings[] = {nsGkAtoms::_true,
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nsGkAtoms::_false, nullptr};
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switch (node->AsElement()->FindAttrValueIn(
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kNameSpaceID_None, nsGkAtoms::spellcheck, strings, eCaseMatters)) {
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case 0: // spellcheck = "true"
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return true;
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case 1: // spellcheck = "false"
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return false;
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}
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}
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}
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// contenteditable/designMode are spellchecked by default
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if (IsEditable()) {
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return true;
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}
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// Is this a chrome element?
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if (nsContentUtils::IsChromeDoc(OwnerDoc())) {
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return false; // Not spellchecked by default
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}
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// Anything else that's not a form control is not spellchecked by default
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nsCOMPtr<nsIFormControl> formControl = do_QueryObject(this);
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if (!formControl) {
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return false; // Not spellchecked by default
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}
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// Is this a multiline plaintext input?
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int32_t controlType = formControl->ControlType();
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if (controlType == NS_FORM_TEXTAREA) {
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return true; // Spellchecked by default
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}
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// Is this anything other than an input text?
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// Other inputs are not spellchecked.
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if (controlType != NS_FORM_INPUT_TEXT) {
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return false; // Not spellchecked by default
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}
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// Does the user want input text spellchecked by default?
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// NOTE: Do not reflect a pref value of 0 back to the DOM getter.
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// The web page should not know if the user has disabled spellchecking.
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// We'll catch this in the editor itself.
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int32_t spellcheckLevel = Preferences::GetInt("layout.spellcheckDefault", 1);
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return spellcheckLevel == 2; // "Spellcheck multi- and single-line"
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}
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bool nsGenericHTMLElement::InNavQuirksMode(Document* aDoc) {
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return aDoc && aDoc->GetCompatibilityMode() == eCompatibility_NavQuirks;
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}
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void nsGenericHTMLElement::UpdateEditableState(bool aNotify) {
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// XXX Should we do this only when in a document?
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ContentEditableTristate value = GetContentEditableValue();
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if (value != eInherit) {
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DoSetEditableFlag(!!value, aNotify);
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return;
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}
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nsStyledElement::UpdateEditableState(aNotify);
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}
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EventStates nsGenericHTMLElement::IntrinsicState() const {
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EventStates state = nsGenericHTMLElementBase::IntrinsicState();
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if (GetDirectionality() == eDir_RTL) {
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state |= NS_EVENT_STATE_RTL;
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state &= ~NS_EVENT_STATE_LTR;
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} else { // at least for HTML, directionality is exclusively LTR or RTL
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NS_ASSERTION(GetDirectionality() == eDir_LTR,
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"HTML element's directionality must be either RTL or LTR");
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state |= NS_EVENT_STATE_LTR;
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state &= ~NS_EVENT_STATE_RTL;
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}
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return state;
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}
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nsresult nsGenericHTMLElement::BindToTree(BindContext& aContext,
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nsINode& aParent) {
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nsresult rv = nsGenericHTMLElementBase::BindToTree(aContext, aParent);
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NS_ENSURE_SUCCESS(rv, rv);
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if (IsInUncomposedDoc()) {
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RegAccessKey();
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if (HasName() && CanHaveName(NodeInfo()->NameAtom())) {
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aContext.OwnerDoc().AddToNameTable(
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this, GetParsedAttr(nsGkAtoms::name)->GetAtomValue());
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}
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}
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if (HasFlag(NODE_IS_EDITABLE) && GetContentEditableValue() == eTrue &&
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IsInComposedDoc()) {
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aContext.OwnerDoc().ChangeContentEditableCount(this, +1);
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}
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// We need to consider a labels element is moved to another subtree
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// with different root, it needs to update labels list and its root
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// as well.
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nsExtendedDOMSlots* slots = GetExistingExtendedDOMSlots();
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if (slots && slots->mLabelsList) {
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slots->mLabelsList->MaybeResetRoot(SubtreeRoot());
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}
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return rv;
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}
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void nsGenericHTMLElement::UnbindFromTree(bool aNullParent) {
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if (IsInUncomposedDoc()) {
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UnregAccessKey();
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}
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RemoveFromNameTable();
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if (GetContentEditableValue() == eTrue) {
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Document* doc = GetComposedDoc();
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if (doc) {
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doc->ChangeContentEditableCount(this, -1);
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}
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}
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nsStyledElement::UnbindFromTree(aNullParent);
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// Invalidate .labels list. It will be repopulated when used the next time.
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nsExtendedDOMSlots* slots = GetExistingExtendedDOMSlots();
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if (slots && slots->mLabelsList) {
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slots->mLabelsList->MaybeResetRoot(SubtreeRoot());
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}
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}
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HTMLFormElement* nsGenericHTMLElement::FindAncestorForm(
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HTMLFormElement* aCurrentForm) {
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NS_ASSERTION(!HasAttr(kNameSpaceID_None, nsGkAtoms::form) ||
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IsHTMLElement(nsGkAtoms::img),
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"FindAncestorForm should not be called if @form is set!");
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if (IsInNativeAnonymousSubtree()) {
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return nullptr;
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}
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nsIContent* content = this;
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while (content) {
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// If the current ancestor is a form, return it as our form
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if (content->IsHTMLElement(nsGkAtoms::form)) {
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#ifdef DEBUG
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if (!nsContentUtils::IsInSameAnonymousTree(this, content)) {
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// It's possible that we started unbinding at |content| or
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// some ancestor of it, and |content| and |this| used to all be
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// anonymous. Check for this the hard way.
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for (nsIContent* child = this; child != content;
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child = child->GetParent()) {
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NS_ASSERTION(child->GetParent()->ComputeIndexOf(child) != -1,
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"Walked too far?");
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}
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}
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#endif
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return static_cast<HTMLFormElement*>(content);
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}
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nsIContent* prevContent = content;
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content = prevContent->GetParent();
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if (!content && aCurrentForm) {
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// We got to the root of the subtree we're in, and we're being removed
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// from the DOM (the only time we get into this method with a non-null
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// aCurrentForm). Check whether aCurrentForm is in the same subtree. If
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// it is, we want to return aCurrentForm, since this case means that
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// we're one of those inputs-in-a-table that have a hacked mForm pointer
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// and a subtree containing both us and the form got removed from the
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// DOM.
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if (aCurrentForm->IsInclusiveDescendantOf(prevContent)) {
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return aCurrentForm;
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}
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}
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}
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return nullptr;
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}
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bool nsGenericHTMLElement::CheckHandleEventForAnchorsPreconditions(
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EventChainVisitor& aVisitor) {
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MOZ_ASSERT(nsCOMPtr<Link>(do_QueryObject(this)),
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"should be called only when |this| implements |Link|");
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// When disconnected, only <a> should navigate away per
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// https://html.spec.whatwg.org/#cannot-navigate
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return IsInComposedDoc() || IsHTMLElement(nsGkAtoms::a);
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}
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void nsGenericHTMLElement::GetEventTargetParentForAnchors(
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EventChainPreVisitor& aVisitor) {
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nsGenericHTMLElementBase::GetEventTargetParent(aVisitor);
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if (!CheckHandleEventForAnchorsPreconditions(aVisitor)) {
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return;
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}
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GetEventTargetParentForLinks(aVisitor);
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}
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nsresult nsGenericHTMLElement::PostHandleEventForAnchors(
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EventChainPostVisitor& aVisitor) {
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if (!CheckHandleEventForAnchorsPreconditions(aVisitor)) {
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return NS_OK;
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}
|
|
|
|
return PostHandleEventForLinks(aVisitor);
|
|
}
|
|
|
|
bool nsGenericHTMLElement::IsHTMLLink(nsIURI** aURI) const {
|
|
MOZ_ASSERT(aURI, "Must provide aURI out param");
|
|
|
|
*aURI = GetHrefURIForAnchors().take();
|
|
// We promise out param is non-null if we return true, so base rv on it
|
|
return *aURI != nullptr;
|
|
}
|
|
|
|
already_AddRefed<nsIURI> nsGenericHTMLElement::GetHrefURIForAnchors() const {
|
|
// This is used by the three Link implementations and
|
|
// nsHTMLStyleElement.
|
|
|
|
// Get href= attribute (relative URI).
|
|
|
|
// We use the nsAttrValue's copy of the URI string to avoid copying.
|
|
nsCOMPtr<nsIURI> uri;
|
|
GetURIAttr(nsGkAtoms::href, nullptr, getter_AddRefs(uri));
|
|
|
|
return uri.forget();
|
|
}
|
|
|
|
nsresult nsGenericHTMLElement::BeforeSetAttr(int32_t aNamespaceID,
|
|
nsAtom* aName,
|
|
const nsAttrValueOrString* aValue,
|
|
bool aNotify) {
|
|
if (aNamespaceID == kNameSpaceID_None) {
|
|
if (aName == nsGkAtoms::accesskey) {
|
|
// Have to unregister before clearing flag. See UnregAccessKey
|
|
UnregAccessKey();
|
|
if (!aValue) {
|
|
UnsetFlags(NODE_HAS_ACCESSKEY);
|
|
}
|
|
} else if (aName == nsGkAtoms::name) {
|
|
// Have to do this before clearing flag. See RemoveFromNameTable
|
|
RemoveFromNameTable();
|
|
if (!aValue || aValue->IsEmpty()) {
|
|
ClearHasName();
|
|
}
|
|
} else if (aName == nsGkAtoms::contenteditable) {
|
|
if (aValue) {
|
|
// Set this before the attribute is set so that any subclass code that
|
|
// runs before the attribute is set won't think we're missing a
|
|
// contenteditable attr when we actually have one.
|
|
SetMayHaveContentEditableAttr();
|
|
}
|
|
}
|
|
if (!aValue && IsEventAttributeName(aName)) {
|
|
if (EventListenerManager* manager = GetExistingListenerManager()) {
|
|
manager->RemoveEventHandler(GetEventNameForAttr(aName));
|
|
}
|
|
}
|
|
}
|
|
|
|
return nsGenericHTMLElementBase::BeforeSetAttr(aNamespaceID, aName, aValue,
|
|
aNotify);
|
|
}
|
|
|
|
nsresult nsGenericHTMLElement::AfterSetAttr(
|
|
int32_t aNamespaceID, nsAtom* aName, const nsAttrValue* aValue,
|
|
const nsAttrValue* aOldValue, nsIPrincipal* aMaybeScriptedPrincipal,
|
|
bool aNotify) {
|
|
if (aNamespaceID == kNameSpaceID_None) {
|
|
if (IsEventAttributeName(aName) && aValue) {
|
|
MOZ_ASSERT(aValue->Type() == nsAttrValue::eString,
|
|
"Expected string value for script body");
|
|
SetEventHandler(GetEventNameForAttr(aName), aValue->GetStringValue());
|
|
} else if (aNotify && aName == nsGkAtoms::spellcheck) {
|
|
SyncEditorsOnSubtree(this);
|
|
} else if (aName == nsGkAtoms::dir) {
|
|
Directionality dir = eDir_LTR;
|
|
// A boolean tracking whether we need to recompute our directionality.
|
|
// This needs to happen after we update our internal "dir" attribute
|
|
// state but before we call SetDirectionalityOnDescendants.
|
|
bool recomputeDirectionality = false;
|
|
// We don't want to have to keep getting the "dir" attribute in
|
|
// IntrinsicState, so we manually recompute our dir-related event states
|
|
// here and send the relevant update notifications.
|
|
EventStates dirStates;
|
|
if (aValue && aValue->Type() == nsAttrValue::eEnum) {
|
|
SetHasValidDir();
|
|
dirStates |= NS_EVENT_STATE_HAS_DIR_ATTR;
|
|
Directionality dirValue = (Directionality)aValue->GetEnumValue();
|
|
if (dirValue == eDir_Auto) {
|
|
dirStates |= NS_EVENT_STATE_DIR_ATTR_LIKE_AUTO;
|
|
} else {
|
|
dir = dirValue;
|
|
SetDirectionality(dir, aNotify);
|
|
if (dirValue == eDir_LTR) {
|
|
dirStates |= NS_EVENT_STATE_DIR_ATTR_LTR;
|
|
} else {
|
|
MOZ_ASSERT(dirValue == eDir_RTL);
|
|
dirStates |= NS_EVENT_STATE_DIR_ATTR_RTL;
|
|
}
|
|
}
|
|
} else {
|
|
if (aValue) {
|
|
// We have a value, just not a valid one.
|
|
dirStates |= NS_EVENT_STATE_HAS_DIR_ATTR;
|
|
}
|
|
ClearHasValidDir();
|
|
if (NodeInfo()->Equals(nsGkAtoms::bdi)) {
|
|
dirStates |= NS_EVENT_STATE_DIR_ATTR_LIKE_AUTO;
|
|
} else {
|
|
recomputeDirectionality = true;
|
|
}
|
|
}
|
|
// Now figure out what's changed about our dir states.
|
|
EventStates oldDirStates = State() & DIR_ATTR_STATES;
|
|
EventStates changedStates = dirStates ^ oldDirStates;
|
|
ToggleStates(changedStates, aNotify);
|
|
if (recomputeDirectionality) {
|
|
dir = RecomputeDirectionality(this, aNotify);
|
|
}
|
|
SetDirectionalityOnDescendants(this, dir, aNotify);
|
|
} else if (aName == nsGkAtoms::contenteditable) {
|
|
int32_t editableCountDelta = 0;
|
|
if (aOldValue &&
|
|
(aOldValue->Equals(NS_LITERAL_STRING("true"), eIgnoreCase) ||
|
|
aOldValue->Equals(EmptyString(), eIgnoreCase))) {
|
|
editableCountDelta = -1;
|
|
}
|
|
if (aValue && (aValue->Equals(NS_LITERAL_STRING("true"), eIgnoreCase) ||
|
|
aValue->Equals(EmptyString(), eIgnoreCase))) {
|
|
++editableCountDelta;
|
|
}
|
|
ChangeEditableState(editableCountDelta);
|
|
} else if (aName == nsGkAtoms::accesskey) {
|
|
if (aValue && !aValue->Equals(EmptyString(), eIgnoreCase)) {
|
|
SetFlags(NODE_HAS_ACCESSKEY);
|
|
RegAccessKey();
|
|
}
|
|
} else if (aName == nsGkAtoms::name) {
|
|
if (aValue && !aValue->Equals(EmptyString(), eIgnoreCase)) {
|
|
// This may not be quite right because we can have subclass code run
|
|
// before here. But in practice subclasses don't care about this flag,
|
|
// and in particular selector matching does not care. Otherwise we'd
|
|
// want to handle it like we handle id attributes (in PreIdMaybeChange
|
|
// and PostIdMaybeChange).
|
|
SetHasName();
|
|
if (CanHaveName(NodeInfo()->NameAtom())) {
|
|
AddToNameTable(aValue->GetAtomValue());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return nsGenericHTMLElementBase::AfterSetAttr(
|
|
aNamespaceID, aName, aValue, aOldValue, aMaybeScriptedPrincipal, aNotify);
|
|
}
|
|
|
|
EventListenerManager* nsGenericHTMLElement::GetEventListenerManagerForAttr(
|
|
nsAtom* aAttrName, bool* aDefer) {
|
|
// Attributes on the body and frameset tags get set on the global object
|
|
if ((mNodeInfo->Equals(nsGkAtoms::body) ||
|
|
mNodeInfo->Equals(nsGkAtoms::frameset)) &&
|
|
// We only forward some event attributes from body/frameset to window
|
|
(0
|
|
#define EVENT(name_, id_, type_, struct_) /* nothing */
|
|
#define FORWARDED_EVENT(name_, id_, type_, struct_) \
|
|
|| nsGkAtoms::on##name_ == aAttrName
|
|
#define WINDOW_EVENT FORWARDED_EVENT
|
|
#include "mozilla/EventNameList.h" // IWYU pragma: keep
|
|
#undef WINDOW_EVENT
|
|
#undef FORWARDED_EVENT
|
|
#undef EVENT
|
|
)) {
|
|
nsPIDOMWindowInner* win;
|
|
|
|
// If we have a document, and it has a window, add the event
|
|
// listener on the window (the inner window). If not, proceed as
|
|
// normal.
|
|
// XXXbz sXBL/XBL2 issue: should we instead use GetComposedDoc() here,
|
|
// override BindToTree for those classes and munge event listeners there?
|
|
Document* document = OwnerDoc();
|
|
|
|
*aDefer = false;
|
|
if ((win = document->GetInnerWindow())) {
|
|
nsCOMPtr<EventTarget> piTarget(do_QueryInterface(win));
|
|
|
|
return piTarget->GetOrCreateListenerManager();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
return nsGenericHTMLElementBase::GetEventListenerManagerForAttr(aAttrName,
|
|
aDefer);
|
|
}
|
|
|
|
#define EVENT(name_, id_, type_, struct_) /* nothing; handled by nsINode */
|
|
#define FORWARDED_EVENT(name_, id_, type_, struct_) \
|
|
EventHandlerNonNull* nsGenericHTMLElement::GetOn##name_() { \
|
|
if (IsAnyOfHTMLElements(nsGkAtoms::body, nsGkAtoms::frameset)) { \
|
|
/* XXXbz note to self: add tests for this! */ \
|
|
if (nsPIDOMWindowInner* win = OwnerDoc()->GetInnerWindow()) { \
|
|
nsGlobalWindowInner* globalWin = nsGlobalWindowInner::Cast(win); \
|
|
return globalWin->GetOn##name_(); \
|
|
} \
|
|
return nullptr; \
|
|
} \
|
|
\
|
|
return nsINode::GetOn##name_(); \
|
|
} \
|
|
void nsGenericHTMLElement::SetOn##name_(EventHandlerNonNull* handler) { \
|
|
if (IsAnyOfHTMLElements(nsGkAtoms::body, nsGkAtoms::frameset)) { \
|
|
nsPIDOMWindowInner* win = OwnerDoc()->GetInnerWindow(); \
|
|
if (!win) { \
|
|
return; \
|
|
} \
|
|
\
|
|
nsGlobalWindowInner* globalWin = nsGlobalWindowInner::Cast(win); \
|
|
return globalWin->SetOn##name_(handler); \
|
|
} \
|
|
\
|
|
return nsINode::SetOn##name_(handler); \
|
|
}
|
|
#define ERROR_EVENT(name_, id_, type_, struct_) \
|
|
already_AddRefed<EventHandlerNonNull> nsGenericHTMLElement::GetOn##name_() { \
|
|
if (IsAnyOfHTMLElements(nsGkAtoms::body, nsGkAtoms::frameset)) { \
|
|
/* XXXbz note to self: add tests for this! */ \
|
|
if (nsPIDOMWindowInner* win = OwnerDoc()->GetInnerWindow()) { \
|
|
nsGlobalWindowInner* globalWin = nsGlobalWindowInner::Cast(win); \
|
|
OnErrorEventHandlerNonNull* errorHandler = globalWin->GetOn##name_(); \
|
|
if (errorHandler) { \
|
|
RefPtr<EventHandlerNonNull> handler = \
|
|
new EventHandlerNonNull(errorHandler); \
|
|
return handler.forget(); \
|
|
} \
|
|
} \
|
|
return nullptr; \
|
|
} \
|
|
\
|
|
RefPtr<EventHandlerNonNull> handler = nsINode::GetOn##name_(); \
|
|
return handler.forget(); \
|
|
} \
|
|
void nsGenericHTMLElement::SetOn##name_(EventHandlerNonNull* handler) { \
|
|
if (IsAnyOfHTMLElements(nsGkAtoms::body, nsGkAtoms::frameset)) { \
|
|
nsPIDOMWindowInner* win = OwnerDoc()->GetInnerWindow(); \
|
|
if (!win) { \
|
|
return; \
|
|
} \
|
|
\
|
|
nsGlobalWindowInner* globalWin = nsGlobalWindowInner::Cast(win); \
|
|
RefPtr<OnErrorEventHandlerNonNull> errorHandler; \
|
|
if (handler) { \
|
|
errorHandler = new OnErrorEventHandlerNonNull(handler); \
|
|
} \
|
|
return globalWin->SetOn##name_(errorHandler); \
|
|
} \
|
|
\
|
|
return nsINode::SetOn##name_(handler); \
|
|
}
|
|
#include "mozilla/EventNameList.h" // IWYU pragma: keep
|
|
#undef ERROR_EVENT
|
|
#undef FORWARDED_EVENT
|
|
#undef EVENT
|
|
|
|
void nsGenericHTMLElement::GetBaseTarget(nsAString& aBaseTarget) const {
|
|
OwnerDoc()->GetBaseTarget(aBaseTarget);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
bool nsGenericHTMLElement::ParseAttribute(int32_t aNamespaceID,
|
|
nsAtom* aAttribute,
|
|
const nsAString& aValue,
|
|
nsIPrincipal* aMaybeScriptedPrincipal,
|
|
nsAttrValue& aResult) {
|
|
if (aNamespaceID == kNameSpaceID_None) {
|
|
if (aAttribute == nsGkAtoms::dir) {
|
|
return aResult.ParseEnumValue(aValue, kDirTable, false);
|
|
}
|
|
|
|
if (aAttribute == nsGkAtoms::tabindex) {
|
|
return aResult.ParseIntValue(aValue);
|
|
}
|
|
|
|
if (aAttribute == nsGkAtoms::referrerpolicy) {
|
|
return ParseReferrerAttribute(aValue, aResult);
|
|
}
|
|
|
|
if (aAttribute == nsGkAtoms::name) {
|
|
// Store name as an atom. name="" means that the element has no name,
|
|
// not that it has an empty string as the name.
|
|
if (aValue.IsEmpty()) {
|
|
return false;
|
|
}
|
|
aResult.ParseAtom(aValue);
|
|
return true;
|
|
}
|
|
|
|
if (aAttribute == nsGkAtoms::contenteditable) {
|
|
aResult.ParseAtom(aValue);
|
|
return true;
|
|
}
|
|
|
|
if (aAttribute == nsGkAtoms::rel) {
|
|
aResult.ParseAtomArray(aValue);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return nsGenericHTMLElementBase::ParseAttribute(
|
|
aNamespaceID, aAttribute, aValue, aMaybeScriptedPrincipal, aResult);
|
|
}
|
|
|
|
bool nsGenericHTMLElement::ParseBackgroundAttribute(int32_t aNamespaceID,
|
|
nsAtom* aAttribute,
|
|
const nsAString& aValue,
|
|
nsAttrValue& aResult) {
|
|
if (aNamespaceID == kNameSpaceID_None &&
|
|
aAttribute == nsGkAtoms::background && !aValue.IsEmpty()) {
|
|
// Resolve url to an absolute url
|
|
Document* doc = OwnerDoc();
|
|
nsCOMPtr<nsIURI> uri;
|
|
nsresult rv = nsContentUtils::NewURIWithDocumentCharset(
|
|
getter_AddRefs(uri), aValue, doc, GetBaseURI());
|
|
if (NS_FAILED(rv)) {
|
|
return false;
|
|
}
|
|
aResult.SetTo(uri, &aValue);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool nsGenericHTMLElement::IsAttributeMapped(const nsAtom* aAttribute) const {
|
|
static const MappedAttributeEntry* const map[] = {sCommonAttributeMap};
|
|
|
|
return FindAttributeDependence(aAttribute, map);
|
|
}
|
|
|
|
nsMapRuleToAttributesFunc nsGenericHTMLElement::GetAttributeMappingFunction()
|
|
const {
|
|
return &MapCommonAttributesInto;
|
|
}
|
|
|
|
nsIFormControlFrame* nsGenericHTMLElement::GetFormControlFrame(
|
|
bool aFlushFrames) {
|
|
if (aFlushFrames && IsInComposedDoc()) {
|
|
// Cause a flush of the frames, so we get up-to-date frame information
|
|
GetComposedDoc()->FlushPendingNotifications(FlushType::Frames);
|
|
}
|
|
nsIFrame* frame = GetPrimaryFrame();
|
|
if (frame) {
|
|
nsIFormControlFrame* form_frame = do_QueryFrame(frame);
|
|
if (form_frame) {
|
|
return form_frame;
|
|
}
|
|
|
|
// If we have generated content, the primary frame will be a
|
|
// wrapper frame.. out real frame will be in its child list.
|
|
for (frame = frame->PrincipalChildList().FirstChild(); frame;
|
|
frame = frame->GetNextSibling()) {
|
|
form_frame = do_QueryFrame(frame);
|
|
if (form_frame) {
|
|
return form_frame;
|
|
}
|
|
}
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
nsPresContext* nsGenericHTMLElement::GetPresContext(PresContextFor aFor) {
|
|
// Get the document
|
|
Document* doc =
|
|
(aFor == eForComposedDoc) ? GetComposedDoc() : GetUncomposedDoc();
|
|
if (doc) {
|
|
return doc->GetPresContext();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
static const nsAttrValue::EnumTable kDivAlignTable[] = {
|
|
{"left", NS_STYLE_TEXT_ALIGN_MOZ_LEFT},
|
|
{"right", NS_STYLE_TEXT_ALIGN_MOZ_RIGHT},
|
|
{"center", NS_STYLE_TEXT_ALIGN_MOZ_CENTER},
|
|
{"middle", NS_STYLE_TEXT_ALIGN_MOZ_CENTER},
|
|
{"justify", NS_STYLE_TEXT_ALIGN_JUSTIFY},
|
|
{nullptr, 0}};
|
|
|
|
static const nsAttrValue::EnumTable kFrameborderTable[] = {
|
|
{"yes", NS_STYLE_FRAME_YES},
|
|
{"no", NS_STYLE_FRAME_NO},
|
|
{"1", NS_STYLE_FRAME_1},
|
|
{"0", NS_STYLE_FRAME_0},
|
|
{nullptr, 0}};
|
|
|
|
// TODO(emilio): Nobody uses the parsed attribute here.
|
|
static const nsAttrValue::EnumTable kScrollingTable[] = {
|
|
{"yes", NS_STYLE_FRAME_YES}, {"no", NS_STYLE_FRAME_NO},
|
|
{"on", NS_STYLE_FRAME_ON}, {"off", NS_STYLE_FRAME_OFF},
|
|
{"scroll", NS_STYLE_FRAME_SCROLL}, {"noscroll", NS_STYLE_FRAME_NOSCROLL},
|
|
{"auto", NS_STYLE_FRAME_AUTO}, {nullptr, 0}};
|
|
|
|
static const nsAttrValue::EnumTable kTableVAlignTable[] = {
|
|
{"top", StyleVerticalAlignKeyword::Top},
|
|
{"middle", StyleVerticalAlignKeyword::Middle},
|
|
{"bottom", StyleVerticalAlignKeyword::Bottom},
|
|
{"baseline", StyleVerticalAlignKeyword::Baseline},
|
|
{nullptr, 0}};
|
|
|
|
bool nsGenericHTMLElement::ParseAlignValue(const nsAString& aString,
|
|
nsAttrValue& aResult) {
|
|
static const nsAttrValue::EnumTable kAlignTable[] = {
|
|
{"left", NS_STYLE_TEXT_ALIGN_LEFT},
|
|
{"right", NS_STYLE_TEXT_ALIGN_RIGHT},
|
|
|
|
{"top", StyleVerticalAlignKeyword::Top},
|
|
{"middle", StyleVerticalAlignKeyword::MozMiddleWithBaseline},
|
|
|
|
// Intentionally not bottom.
|
|
{"bottom", StyleVerticalAlignKeyword::Baseline},
|
|
|
|
{"center", StyleVerticalAlignKeyword::MozMiddleWithBaseline},
|
|
{"baseline", StyleVerticalAlignKeyword::Baseline},
|
|
|
|
{"texttop", StyleVerticalAlignKeyword::TextTop},
|
|
{"absmiddle", StyleVerticalAlignKeyword::Middle},
|
|
{"abscenter", StyleVerticalAlignKeyword::Middle},
|
|
{"absbottom", StyleVerticalAlignKeyword::Bottom},
|
|
{nullptr, 0}};
|
|
|
|
return aResult.ParseEnumValue(aString, kAlignTable, false);
|
|
}
|
|
|
|
//----------------------------------------
|
|
|
|
static const nsAttrValue::EnumTable kTableHAlignTable[] = {
|
|
{"left", NS_STYLE_TEXT_ALIGN_LEFT},
|
|
{"right", NS_STYLE_TEXT_ALIGN_RIGHT},
|
|
{"center", NS_STYLE_TEXT_ALIGN_CENTER},
|
|
{"char", NS_STYLE_TEXT_ALIGN_CHAR},
|
|
{"justify", NS_STYLE_TEXT_ALIGN_JUSTIFY},
|
|
{nullptr, 0}};
|
|
|
|
bool nsGenericHTMLElement::ParseTableHAlignValue(const nsAString& aString,
|
|
nsAttrValue& aResult) {
|
|
return aResult.ParseEnumValue(aString, kTableHAlignTable, false);
|
|
}
|
|
|
|
//----------------------------------------
|
|
|
|
// This table is used for td, th, tr, col, thead, tbody and tfoot.
|
|
static const nsAttrValue::EnumTable kTableCellHAlignTable[] = {
|
|
{"left", NS_STYLE_TEXT_ALIGN_MOZ_LEFT},
|
|
{"right", NS_STYLE_TEXT_ALIGN_MOZ_RIGHT},
|
|
{"center", NS_STYLE_TEXT_ALIGN_MOZ_CENTER},
|
|
{"char", NS_STYLE_TEXT_ALIGN_CHAR},
|
|
{"justify", NS_STYLE_TEXT_ALIGN_JUSTIFY},
|
|
{"middle", NS_STYLE_TEXT_ALIGN_MOZ_CENTER},
|
|
{"absmiddle", NS_STYLE_TEXT_ALIGN_CENTER},
|
|
{nullptr, 0}};
|
|
|
|
bool nsGenericHTMLElement::ParseTableCellHAlignValue(const nsAString& aString,
|
|
nsAttrValue& aResult) {
|
|
return aResult.ParseEnumValue(aString, kTableCellHAlignTable, false);
|
|
}
|
|
|
|
//----------------------------------------
|
|
|
|
bool nsGenericHTMLElement::ParseTableVAlignValue(const nsAString& aString,
|
|
nsAttrValue& aResult) {
|
|
return aResult.ParseEnumValue(aString, kTableVAlignTable, false);
|
|
}
|
|
|
|
bool nsGenericHTMLElement::ParseDivAlignValue(const nsAString& aString,
|
|
nsAttrValue& aResult) {
|
|
return aResult.ParseEnumValue(aString, kDivAlignTable, false);
|
|
}
|
|
|
|
bool nsGenericHTMLElement::ParseImageAttribute(nsAtom* aAttribute,
|
|
const nsAString& aString,
|
|
nsAttrValue& aResult) {
|
|
if (aAttribute == nsGkAtoms::width || aAttribute == nsGkAtoms::height ||
|
|
aAttribute == nsGkAtoms::hspace || aAttribute == nsGkAtoms::vspace) {
|
|
return aResult.ParseHTMLDimension(aString);
|
|
}
|
|
if (aAttribute == nsGkAtoms::border) {
|
|
return aResult.ParseNonNegativeIntValue(aString);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool nsGenericHTMLElement::ParseReferrerAttribute(const nsAString& aString,
|
|
nsAttrValue& aResult) {
|
|
using mozilla::dom::ReferrerInfo;
|
|
static const nsAttrValue::EnumTable kReferrerPolicyTable[] = {
|
|
{ReferrerInfo::ReferrerPolicyToString(ReferrerPolicy::No_referrer),
|
|
static_cast<int16_t>(ReferrerPolicy::No_referrer)},
|
|
{ReferrerInfo::ReferrerPolicyToString(ReferrerPolicy::Origin),
|
|
static_cast<int16_t>(ReferrerPolicy::Origin)},
|
|
{ReferrerInfo::ReferrerPolicyToString(
|
|
ReferrerPolicy::Origin_when_cross_origin),
|
|
static_cast<int16_t>(ReferrerPolicy::Origin_when_cross_origin)},
|
|
{ReferrerInfo::ReferrerPolicyToString(
|
|
ReferrerPolicy::No_referrer_when_downgrade),
|
|
static_cast<int16_t>(ReferrerPolicy::No_referrer_when_downgrade)},
|
|
{ReferrerInfo::ReferrerPolicyToString(ReferrerPolicy::Unsafe_url),
|
|
static_cast<int16_t>(ReferrerPolicy::Unsafe_url)},
|
|
{ReferrerInfo::ReferrerPolicyToString(ReferrerPolicy::Strict_origin),
|
|
static_cast<int16_t>(ReferrerPolicy::Strict_origin)},
|
|
{ReferrerInfo::ReferrerPolicyToString(ReferrerPolicy::Same_origin),
|
|
static_cast<int16_t>(ReferrerPolicy::Same_origin)},
|
|
{ReferrerInfo::ReferrerPolicyToString(
|
|
ReferrerPolicy::Strict_origin_when_cross_origin),
|
|
static_cast<int16_t>(ReferrerPolicy::Strict_origin_when_cross_origin)},
|
|
{nullptr, ReferrerPolicy::_empty}};
|
|
return aResult.ParseEnumValue(aString, kReferrerPolicyTable, false);
|
|
}
|
|
|
|
bool nsGenericHTMLElement::ParseFrameborderValue(const nsAString& aString,
|
|
nsAttrValue& aResult) {
|
|
return aResult.ParseEnumValue(aString, kFrameborderTable, false);
|
|
}
|
|
|
|
bool nsGenericHTMLElement::ParseScrollingValue(const nsAString& aString,
|
|
nsAttrValue& aResult) {
|
|
return aResult.ParseEnumValue(aString, kScrollingTable, false);
|
|
}
|
|
|
|
static inline void MapLangAttributeInto(const nsMappedAttributes* aAttributes,
|
|
MappedDeclarations& aDecls) {
|
|
const nsAttrValue* langValue = aAttributes->GetAttr(nsGkAtoms::lang);
|
|
if (!langValue) {
|
|
return;
|
|
}
|
|
MOZ_ASSERT(langValue->Type() == nsAttrValue::eAtom);
|
|
aDecls.SetIdentAtomValueIfUnset(eCSSProperty__x_lang,
|
|
langValue->GetAtomValue());
|
|
if (!aDecls.PropertyIsSet(eCSSProperty_text_emphasis_position)) {
|
|
const nsAtom* lang = langValue->GetAtomValue();
|
|
if (nsStyleUtil::MatchesLanguagePrefix(lang, u"zh")) {
|
|
aDecls.SetKeywordValue(eCSSProperty_text_emphasis_position,
|
|
NS_STYLE_TEXT_EMPHASIS_POSITION_DEFAULT_ZH);
|
|
} else if (nsStyleUtil::MatchesLanguagePrefix(lang, u"ja") ||
|
|
nsStyleUtil::MatchesLanguagePrefix(lang, u"mn")) {
|
|
// This branch is currently no part of the spec.
|
|
// See bug 1040668 comment 69 and comment 75.
|
|
aDecls.SetKeywordValue(eCSSProperty_text_emphasis_position,
|
|
NS_STYLE_TEXT_EMPHASIS_POSITION_DEFAULT);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Handle attributes common to all html elements
|
|
*/
|
|
void nsGenericHTMLElement::MapCommonAttributesIntoExceptHidden(
|
|
const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
|
|
if (!aDecls.PropertyIsSet(eCSSProperty__moz_user_modify)) {
|
|
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::contenteditable);
|
|
if (value) {
|
|
if (value->Equals(nsGkAtoms::_empty, eCaseMatters) ||
|
|
value->Equals(nsGkAtoms::_true, eIgnoreCase)) {
|
|
aDecls.SetKeywordValue(eCSSProperty__moz_user_modify,
|
|
StyleUserModify::ReadWrite);
|
|
} else if (value->Equals(nsGkAtoms::_false, eIgnoreCase)) {
|
|
aDecls.SetKeywordValue(eCSSProperty__moz_user_modify,
|
|
StyleUserModify::ReadOnly);
|
|
}
|
|
}
|
|
}
|
|
|
|
MapLangAttributeInto(aAttributes, aDecls);
|
|
}
|
|
|
|
void nsGenericHTMLElement::MapCommonAttributesInto(
|
|
const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
|
|
MapCommonAttributesIntoExceptHidden(aAttributes, aDecls);
|
|
|
|
if (!aDecls.PropertyIsSet(eCSSProperty_display)) {
|
|
if (aAttributes->IndexOfAttr(nsGkAtoms::hidden) >= 0) {
|
|
aDecls.SetKeywordValue(eCSSProperty_display, StyleDisplay::None);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* static */
|
|
const nsGenericHTMLElement::MappedAttributeEntry
|
|
nsGenericHTMLElement::sCommonAttributeMap[] = {{nsGkAtoms::contenteditable},
|
|
{nsGkAtoms::lang},
|
|
{nsGkAtoms::hidden},
|
|
{nullptr}};
|
|
|
|
/* static */
|
|
const Element::MappedAttributeEntry
|
|
nsGenericHTMLElement::sImageMarginSizeAttributeMap[] = {{nsGkAtoms::width},
|
|
{nsGkAtoms::height},
|
|
{nsGkAtoms::hspace},
|
|
{nsGkAtoms::vspace},
|
|
{nullptr}};
|
|
|
|
/* static */
|
|
const Element::MappedAttributeEntry
|
|
nsGenericHTMLElement::sImageAlignAttributeMap[] = {{nsGkAtoms::align},
|
|
{nullptr}};
|
|
|
|
/* static */
|
|
const Element::MappedAttributeEntry
|
|
nsGenericHTMLElement::sDivAlignAttributeMap[] = {{nsGkAtoms::align},
|
|
{nullptr}};
|
|
|
|
/* static */
|
|
const Element::MappedAttributeEntry
|
|
nsGenericHTMLElement::sImageBorderAttributeMap[] = {{nsGkAtoms::border},
|
|
{nullptr}};
|
|
|
|
/* static */
|
|
const Element::MappedAttributeEntry
|
|
nsGenericHTMLElement::sBackgroundAttributeMap[] = {
|
|
{nsGkAtoms::background}, {nsGkAtoms::bgcolor}, {nullptr}};
|
|
|
|
/* static */
|
|
const Element::MappedAttributeEntry
|
|
nsGenericHTMLElement::sBackgroundColorAttributeMap[] = {
|
|
{nsGkAtoms::bgcolor}, {nullptr}};
|
|
|
|
void nsGenericHTMLElement::MapImageAlignAttributeInto(
|
|
const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
|
|
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::align);
|
|
if (value && value->Type() == nsAttrValue::eEnum) {
|
|
int32_t align = value->GetEnumValue();
|
|
if (!aDecls.PropertyIsSet(eCSSProperty_float)) {
|
|
if (align == NS_STYLE_TEXT_ALIGN_LEFT) {
|
|
aDecls.SetKeywordValue(eCSSProperty_float, StyleFloat::Left);
|
|
} else if (align == NS_STYLE_TEXT_ALIGN_RIGHT) {
|
|
aDecls.SetKeywordValue(eCSSProperty_float, StyleFloat::Right);
|
|
}
|
|
}
|
|
if (!aDecls.PropertyIsSet(eCSSProperty_vertical_align)) {
|
|
switch (align) {
|
|
case NS_STYLE_TEXT_ALIGN_LEFT:
|
|
case NS_STYLE_TEXT_ALIGN_RIGHT:
|
|
break;
|
|
default:
|
|
aDecls.SetKeywordValue(eCSSProperty_vertical_align, align);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLElement::MapDivAlignAttributeInto(
|
|
const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
|
|
if (!aDecls.PropertyIsSet(eCSSProperty_text_align)) {
|
|
// align: enum
|
|
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::align);
|
|
if (value && value->Type() == nsAttrValue::eEnum)
|
|
aDecls.SetKeywordValue(eCSSProperty_text_align, value->GetEnumValue());
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLElement::MapVAlignAttributeInto(
|
|
const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
|
|
if (!aDecls.PropertyIsSet(eCSSProperty_vertical_align)) {
|
|
// align: enum
|
|
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::valign);
|
|
if (value && value->Type() == nsAttrValue::eEnum)
|
|
aDecls.SetKeywordValue(eCSSProperty_vertical_align,
|
|
value->GetEnumValue());
|
|
}
|
|
}
|
|
|
|
static void MapDimensionAttributeInto(MappedDeclarations& aDecls,
|
|
nsCSSPropertyID aProp,
|
|
const nsAttrValue& aValue) {
|
|
MOZ_ASSERT(!aDecls.PropertyIsSet(aProp),
|
|
"Why mapping the same property twice?");
|
|
if (aValue.Type() == nsAttrValue::eInteger) {
|
|
return aDecls.SetPixelValue(aProp, aValue.GetIntegerValue());
|
|
}
|
|
if (aValue.Type() == nsAttrValue::ePercent) {
|
|
return aDecls.SetPercentValue(aProp, aValue.GetPercentValue());
|
|
}
|
|
if (aValue.Type() == nsAttrValue::eDoubleValue) {
|
|
return aDecls.SetPixelValue(aProp, aValue.GetDoubleValue());
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLElement::MapImageMarginAttributeInto(
|
|
const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
|
|
const nsAttrValue* value;
|
|
|
|
// hspace: value
|
|
value = aAttributes->GetAttr(nsGkAtoms::hspace);
|
|
if (value) {
|
|
MapDimensionAttributeInto(aDecls, eCSSProperty_margin_left, *value);
|
|
MapDimensionAttributeInto(aDecls, eCSSProperty_margin_right, *value);
|
|
}
|
|
|
|
// vspace: value
|
|
value = aAttributes->GetAttr(nsGkAtoms::vspace);
|
|
if (value) {
|
|
MapDimensionAttributeInto(aDecls, eCSSProperty_margin_top, *value);
|
|
MapDimensionAttributeInto(aDecls, eCSSProperty_margin_bottom, *value);
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLElement::MapWidthAttributeInto(
|
|
const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
|
|
if (const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::width)) {
|
|
MapDimensionAttributeInto(aDecls, eCSSProperty_width, *value);
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLElement::MapHeightAttributeInto(
|
|
const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
|
|
if (const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::height)) {
|
|
MapDimensionAttributeInto(aDecls, eCSSProperty_height, *value);
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLElement::MapImageSizeAttributesInto(
|
|
const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls,
|
|
MapAspectRatio aMapAspectRatio) {
|
|
auto* width = aAttributes->GetAttr(nsGkAtoms::width);
|
|
auto* height = aAttributes->GetAttr(nsGkAtoms::height);
|
|
if (width) {
|
|
MapDimensionAttributeInto(aDecls, eCSSProperty_width, *width);
|
|
}
|
|
if (height) {
|
|
MapDimensionAttributeInto(aDecls, eCSSProperty_height, *height);
|
|
}
|
|
if (StaticPrefs::layout_css_width_and_height_map_to_aspect_ratio_enabled() &&
|
|
aMapAspectRatio == MapAspectRatio::Yes && width && height) {
|
|
Maybe<double> w;
|
|
if (width->Type() == nsAttrValue::eInteger) {
|
|
w.emplace(width->GetIntegerValue());
|
|
} else if (width->Type() == nsAttrValue::eDoubleValue) {
|
|
w.emplace(width->GetDoubleValue());
|
|
}
|
|
|
|
Maybe<double> h;
|
|
if (height->Type() == nsAttrValue::eInteger) {
|
|
h.emplace(height->GetIntegerValue());
|
|
} else if (height->Type() == nsAttrValue::eDoubleValue) {
|
|
h.emplace(height->GetDoubleValue());
|
|
}
|
|
|
|
if (w && h && *w != 0 && *h != 0) {
|
|
aDecls.SetNumberValue(eCSSProperty_aspect_ratio, *w / *h);
|
|
}
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLElement::MapImageBorderAttributeInto(
|
|
const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
|
|
// border: pixels
|
|
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::border);
|
|
if (!value) return;
|
|
|
|
nscoord val = 0;
|
|
if (value->Type() == nsAttrValue::eInteger) val = value->GetIntegerValue();
|
|
|
|
aDecls.SetPixelValueIfUnset(eCSSProperty_border_top_width, (float)val);
|
|
aDecls.SetPixelValueIfUnset(eCSSProperty_border_right_width, (float)val);
|
|
aDecls.SetPixelValueIfUnset(eCSSProperty_border_bottom_width, (float)val);
|
|
aDecls.SetPixelValueIfUnset(eCSSProperty_border_left_width, (float)val);
|
|
|
|
aDecls.SetKeywordValueIfUnset(eCSSProperty_border_top_style,
|
|
StyleBorderStyle::Solid);
|
|
aDecls.SetKeywordValueIfUnset(eCSSProperty_border_right_style,
|
|
StyleBorderStyle::Solid);
|
|
aDecls.SetKeywordValueIfUnset(eCSSProperty_border_bottom_style,
|
|
StyleBorderStyle::Solid);
|
|
aDecls.SetKeywordValueIfUnset(eCSSProperty_border_left_style,
|
|
StyleBorderStyle::Solid);
|
|
|
|
aDecls.SetCurrentColorIfUnset(eCSSProperty_border_top_color);
|
|
aDecls.SetCurrentColorIfUnset(eCSSProperty_border_right_color);
|
|
aDecls.SetCurrentColorIfUnset(eCSSProperty_border_bottom_color);
|
|
aDecls.SetCurrentColorIfUnset(eCSSProperty_border_left_color);
|
|
}
|
|
|
|
void nsGenericHTMLElement::MapBackgroundInto(
|
|
const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
|
|
if (!aDecls.PropertyIsSet(eCSSProperty_background_image)) {
|
|
// background
|
|
nsAttrValue* value =
|
|
const_cast<nsAttrValue*>(aAttributes->GetAttr(nsGkAtoms::background));
|
|
if (value) {
|
|
aDecls.SetBackgroundImage(*value);
|
|
}
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLElement::MapBGColorInto(const nsMappedAttributes* aAttributes,
|
|
MappedDeclarations& aDecls) {
|
|
if (!aDecls.PropertyIsSet(eCSSProperty_background_color)) {
|
|
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::bgcolor);
|
|
nscolor color;
|
|
if (value && value->GetColorValue(color)) {
|
|
aDecls.SetColorValue(eCSSProperty_background_color, color);
|
|
}
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLElement::MapBackgroundAttributesInto(
|
|
const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
|
|
MapBackgroundInto(aAttributes, aDecls);
|
|
MapBGColorInto(aAttributes, aDecls);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
int32_t nsGenericHTMLElement::GetIntAttr(nsAtom* aAttr,
|
|
int32_t aDefault) const {
|
|
const nsAttrValue* attrVal = mAttrs.GetAttr(aAttr);
|
|
if (attrVal && attrVal->Type() == nsAttrValue::eInteger) {
|
|
return attrVal->GetIntegerValue();
|
|
}
|
|
return aDefault;
|
|
}
|
|
|
|
nsresult nsGenericHTMLElement::SetIntAttr(nsAtom* aAttr, int32_t aValue) {
|
|
nsAutoString value;
|
|
value.AppendInt(aValue);
|
|
|
|
return SetAttr(kNameSpaceID_None, aAttr, value, true);
|
|
}
|
|
|
|
uint32_t nsGenericHTMLElement::GetUnsignedIntAttr(nsAtom* aAttr,
|
|
uint32_t aDefault) const {
|
|
const nsAttrValue* attrVal = mAttrs.GetAttr(aAttr);
|
|
if (!attrVal || attrVal->Type() != nsAttrValue::eInteger) {
|
|
return aDefault;
|
|
}
|
|
|
|
return attrVal->GetIntegerValue();
|
|
}
|
|
|
|
uint32_t nsGenericHTMLElement::GetDimensionAttrAsUnsignedInt(
|
|
nsAtom* aAttr, uint32_t aDefault) const {
|
|
const nsAttrValue* attrVal = mAttrs.GetAttr(aAttr);
|
|
if (!attrVal) {
|
|
return aDefault;
|
|
}
|
|
|
|
if (attrVal->Type() == nsAttrValue::eInteger) {
|
|
return attrVal->GetIntegerValue();
|
|
}
|
|
|
|
if (attrVal->Type() == nsAttrValue::ePercent) {
|
|
// This is a nasty hack. When we parsed the value, we stored it as an
|
|
// ePercent, not eInteger, because there was a '%' after it in the string.
|
|
// But the spec says to basically re-parse the string as an integer.
|
|
// Luckily, we can just return the value we have stored. But
|
|
// GetPercentValue() divides it by 100, so we need to multiply it back.
|
|
return uint32_t(attrVal->GetPercentValue() * 100.0f);
|
|
}
|
|
|
|
if (attrVal->Type() == nsAttrValue::eDoubleValue) {
|
|
return uint32_t(attrVal->GetDoubleValue());
|
|
}
|
|
|
|
// Unfortunately, the set of values that are valid dimensions is not a
|
|
// superset of values that are valid unsigned ints. In particular "+100" is
|
|
// not a valid dimension, but should parse as the unsigned int "100". So if
|
|
// we got here and we don't have a valid dimension value, just try re-parsing
|
|
// the string we have as an integer.
|
|
nsAutoString val;
|
|
attrVal->ToString(val);
|
|
nsContentUtils::ParseHTMLIntegerResultFlags result;
|
|
int32_t parsedInt = nsContentUtils::ParseHTMLInteger(val, &result);
|
|
if ((result & nsContentUtils::eParseHTMLInteger_Error) || parsedInt < 0) {
|
|
return aDefault;
|
|
}
|
|
|
|
return parsedInt;
|
|
}
|
|
|
|
void nsGenericHTMLElement::GetURIAttr(nsAtom* aAttr, nsAtom* aBaseAttr,
|
|
nsAString& aResult) const {
|
|
nsCOMPtr<nsIURI> uri;
|
|
bool hadAttr = GetURIAttr(aAttr, aBaseAttr, getter_AddRefs(uri));
|
|
if (!hadAttr) {
|
|
aResult.Truncate();
|
|
return;
|
|
}
|
|
|
|
if (!uri) {
|
|
// Just return the attr value
|
|
GetAttr(kNameSpaceID_None, aAttr, aResult);
|
|
return;
|
|
}
|
|
|
|
nsAutoCString spec;
|
|
uri->GetSpec(spec);
|
|
CopyUTF8toUTF16(spec, aResult);
|
|
}
|
|
|
|
bool nsGenericHTMLElement::GetURIAttr(nsAtom* aAttr, nsAtom* aBaseAttr,
|
|
nsIURI** aURI) const {
|
|
*aURI = nullptr;
|
|
|
|
const nsAttrValue* attr = mAttrs.GetAttr(aAttr);
|
|
if (!attr) {
|
|
return false;
|
|
}
|
|
|
|
nsCOMPtr<nsIURI> baseURI = GetBaseURI();
|
|
|
|
if (aBaseAttr) {
|
|
nsAutoString baseAttrValue;
|
|
if (GetAttr(kNameSpaceID_None, aBaseAttr, baseAttrValue)) {
|
|
nsCOMPtr<nsIURI> baseAttrURI;
|
|
nsresult rv = nsContentUtils::NewURIWithDocumentCharset(
|
|
getter_AddRefs(baseAttrURI), baseAttrValue, OwnerDoc(), baseURI);
|
|
if (NS_FAILED(rv)) {
|
|
return true;
|
|
}
|
|
baseURI.swap(baseAttrURI);
|
|
}
|
|
}
|
|
|
|
// Don't care about return value. If it fails, we still want to
|
|
// return true, and *aURI will be null.
|
|
nsContentUtils::NewURIWithDocumentCharset(aURI, attr->GetStringValue(),
|
|
OwnerDoc(), baseURI);
|
|
return true;
|
|
}
|
|
|
|
HTMLMenuElement* nsGenericHTMLElement::GetContextMenu() const {
|
|
nsAutoString value;
|
|
GetHTMLAttr(nsGkAtoms::contextmenu, value);
|
|
if (!value.IsEmpty()) {
|
|
// XXXsmaug How should this work in Shadow DOM?
|
|
Document* doc = GetUncomposedDoc();
|
|
if (doc) {
|
|
return HTMLMenuElement::FromNodeOrNull(doc->GetElementById(value));
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
bool nsGenericHTMLElement::IsLabelable() const {
|
|
return IsAnyOfHTMLElements(nsGkAtoms::progress, nsGkAtoms::meter);
|
|
}
|
|
|
|
/* static */
|
|
bool nsGenericHTMLElement::MatchLabelsElement(Element* aElement,
|
|
int32_t aNamespaceID,
|
|
nsAtom* aAtom, void* aData) {
|
|
HTMLLabelElement* element = HTMLLabelElement::FromNode(aElement);
|
|
return element && element->GetControl() == aData;
|
|
}
|
|
|
|
already_AddRefed<nsINodeList> nsGenericHTMLElement::Labels() {
|
|
MOZ_ASSERT(IsLabelable(),
|
|
"Labels() only allow labelable elements to use it.");
|
|
nsExtendedDOMSlots* slots = ExtendedDOMSlots();
|
|
|
|
if (!slots->mLabelsList) {
|
|
slots->mLabelsList =
|
|
new nsLabelsNodeList(SubtreeRoot(), MatchLabelsElement, nullptr, this);
|
|
}
|
|
|
|
RefPtr<nsLabelsNodeList> labels = slots->mLabelsList;
|
|
return labels.forget();
|
|
}
|
|
|
|
bool nsGenericHTMLElement::IsInteractiveHTMLContent(
|
|
bool aIgnoreTabindex) const {
|
|
return IsAnyOfHTMLElements(nsGkAtoms::embed) ||
|
|
(!aIgnoreTabindex && HasAttr(kNameSpaceID_None, nsGkAtoms::tabindex));
|
|
}
|
|
|
|
// static
|
|
bool nsGenericHTMLElement::LegacyTouchAPIEnabled(JSContext* aCx,
|
|
JSObject* aGlobal) {
|
|
return TouchEvent::LegacyAPIEnabled(aCx, aGlobal);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
nsGenericHTMLFormElement::nsGenericHTMLFormElement(
|
|
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo, uint8_t aType)
|
|
: nsGenericHTMLElement(std::move(aNodeInfo)),
|
|
nsIFormControl(aType),
|
|
mForm(nullptr),
|
|
mFieldSet(nullptr) {
|
|
// We should add the NS_EVENT_STATE_ENABLED bit here as needed, but
|
|
// that depends on our type, which is not initialized yet. So we
|
|
// have to do this in subclasses.
|
|
}
|
|
|
|
nsGenericHTMLFormElement::~nsGenericHTMLFormElement() {
|
|
if (mFieldSet) {
|
|
mFieldSet->RemoveElement(this);
|
|
}
|
|
|
|
// Check that this element doesn't know anything about its form at this point.
|
|
NS_ASSERTION(!mForm, "mForm should be null at this point!");
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS_INHERITED(nsGenericHTMLFormElement, nsGenericHTMLElement,
|
|
nsIFormControl)
|
|
|
|
nsINode* nsGenericHTMLFormElement::GetScopeChainParent() const {
|
|
return mForm ? mForm : nsGenericHTMLElement::GetScopeChainParent();
|
|
}
|
|
|
|
bool nsGenericHTMLFormElement::IsNodeOfType(uint32_t aFlags) const {
|
|
return !(aFlags & ~eHTML_FORM_CONTROL);
|
|
}
|
|
|
|
void nsGenericHTMLFormElement::SaveSubtreeState() {
|
|
SaveState();
|
|
|
|
nsGenericHTMLElement::SaveSubtreeState();
|
|
}
|
|
|
|
void nsGenericHTMLFormElement::SetForm(HTMLFormElement* aForm) {
|
|
MOZ_ASSERT(aForm, "Don't pass null here");
|
|
NS_ASSERTION(!mForm,
|
|
"We don't support switching from one non-null form to another.");
|
|
|
|
SetForm(aForm, false);
|
|
}
|
|
|
|
void nsGenericHTMLFormElement::SetForm(HTMLFormElement* aForm,
|
|
bool aBindToTree) {
|
|
if (aForm) {
|
|
BeforeSetForm(aBindToTree);
|
|
}
|
|
|
|
// keep a *weak* ref to the form here
|
|
mForm = aForm;
|
|
}
|
|
|
|
void nsGenericHTMLFormElement::ClearForm(bool aRemoveFromForm,
|
|
bool aUnbindOrDelete) {
|
|
NS_ASSERTION((mForm != nullptr) == HasFlag(ADDED_TO_FORM),
|
|
"Form control should have had flag set correctly");
|
|
|
|
if (!mForm) {
|
|
return;
|
|
}
|
|
|
|
if (aRemoveFromForm) {
|
|
nsAutoString nameVal, idVal;
|
|
GetAttr(kNameSpaceID_None, nsGkAtoms::name, nameVal);
|
|
GetAttr(kNameSpaceID_None, nsGkAtoms::id, idVal);
|
|
|
|
mForm->RemoveElement(this, true);
|
|
|
|
if (!nameVal.IsEmpty()) {
|
|
mForm->RemoveElementFromTable(this, nameVal);
|
|
}
|
|
|
|
if (!idVal.IsEmpty()) {
|
|
mForm->RemoveElementFromTable(this, idVal);
|
|
}
|
|
}
|
|
|
|
UnsetFlags(ADDED_TO_FORM);
|
|
mForm = nullptr;
|
|
|
|
AfterClearForm(aUnbindOrDelete);
|
|
}
|
|
|
|
HTMLFormElement* nsGenericHTMLFormElement::GetFormElement() { return mForm; }
|
|
|
|
HTMLFieldSetElement* nsGenericHTMLFormElement::GetFieldSet() {
|
|
return mFieldSet;
|
|
}
|
|
|
|
nsIContent::IMEState nsGenericHTMLFormElement::GetDesiredIMEState() {
|
|
TextEditor* textEditor = GetTextEditorInternal();
|
|
if (!textEditor) {
|
|
return nsGenericHTMLElement::GetDesiredIMEState();
|
|
}
|
|
IMEState state;
|
|
nsresult rv = textEditor->GetPreferredIMEState(&state);
|
|
if (NS_FAILED(rv)) {
|
|
return nsGenericHTMLElement::GetDesiredIMEState();
|
|
}
|
|
return state;
|
|
}
|
|
|
|
static bool IsSameOriginAsTop(const BindContext& aContext,
|
|
const nsGenericHTMLFormElement* aElement) {
|
|
MOZ_ASSERT(aElement);
|
|
|
|
BrowsingContext* browsingContext = aContext.OwnerDoc().GetBrowsingContext();
|
|
if (!browsingContext) {
|
|
return false;
|
|
}
|
|
|
|
nsPIDOMWindowOuter* topWindow = browsingContext->Top()->GetDOMWindow();
|
|
if (!topWindow) {
|
|
// If we don't have a DOMWindow, We are not in same origin.
|
|
return false;
|
|
}
|
|
|
|
Document* topLevelDocument = topWindow->GetExtantDoc();
|
|
if (!topLevelDocument) {
|
|
return false;
|
|
}
|
|
|
|
return NS_SUCCEEDED(
|
|
nsContentUtils::CheckSameOrigin(topLevelDocument, aElement));
|
|
}
|
|
|
|
nsresult nsGenericHTMLFormElement::BindToTree(BindContext& aContext,
|
|
nsINode& aParent) {
|
|
nsresult rv = nsGenericHTMLElement::BindToTree(aContext, aParent);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// An autofocus event has to be launched if the autofocus attribute is
|
|
// specified and the element accepts the autofocus attribute and only if the
|
|
// target document is in the same origin as the top level document.
|
|
// https://html.spec.whatwg.org/multipage/interaction.html#the-autofocus-attribute:same-origin
|
|
// In addition, the document should not be already loaded and the
|
|
// "browser.autofocus" preference should be 'true'.
|
|
if (IsAutofocusable() && HasAttr(kNameSpaceID_None, nsGkAtoms::autofocus) &&
|
|
StaticPrefs::browser_autofocus() && IsInUncomposedDoc() &&
|
|
IsSameOriginAsTop(aContext, this)) {
|
|
aContext.OwnerDoc().SetAutoFocusElement(this);
|
|
}
|
|
|
|
// If @form is set, the element *has* to be in a composed document, otherwise
|
|
// it wouldn't be possible to find an element with the corresponding id.
|
|
// If @form isn't set, the element *has* to have a parent, otherwise it
|
|
// wouldn't be possible to find a form ancestor.
|
|
// We should not call UpdateFormOwner if none of these conditions are
|
|
// fulfilled.
|
|
if (HasAttr(kNameSpaceID_None, nsGkAtoms::form) ? IsInComposedDoc()
|
|
: aParent.IsContent()) {
|
|
UpdateFormOwner(true, nullptr);
|
|
}
|
|
|
|
// Set parent fieldset which should be used for the disabled state.
|
|
UpdateFieldSet(false);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsGenericHTMLFormElement::UnbindFromTree(bool aNullParent) {
|
|
// Save state before doing anything
|
|
SaveState();
|
|
|
|
if (mForm) {
|
|
// Might need to unset mForm
|
|
if (aNullParent) {
|
|
// No more parent means no more form
|
|
ClearForm(true, true);
|
|
} else {
|
|
// Recheck whether we should still have an mForm.
|
|
if (HasAttr(kNameSpaceID_None, nsGkAtoms::form) ||
|
|
!FindAncestorForm(mForm)) {
|
|
ClearForm(true, true);
|
|
} else {
|
|
UnsetFlags(MAYBE_ORPHAN_FORM_ELEMENT);
|
|
}
|
|
}
|
|
|
|
if (!mForm) {
|
|
// Our novalidate state might have changed
|
|
UpdateState(false);
|
|
}
|
|
}
|
|
|
|
// We have to remove the form id observer if there was one.
|
|
// We will re-add one later if needed (during bind to tree).
|
|
if (nsContentUtils::HasNonEmptyAttr(this, kNameSpaceID_None,
|
|
nsGkAtoms::form)) {
|
|
RemoveFormIdObserver();
|
|
}
|
|
|
|
nsGenericHTMLElement::UnbindFromTree(aNullParent);
|
|
|
|
// The element might not have a fieldset anymore.
|
|
UpdateFieldSet(false);
|
|
}
|
|
|
|
nsresult nsGenericHTMLFormElement::BeforeSetAttr(
|
|
int32_t aNameSpaceID, nsAtom* aName, const nsAttrValueOrString* aValue,
|
|
bool aNotify) {
|
|
if (aNameSpaceID == kNameSpaceID_None) {
|
|
nsAutoString tmp;
|
|
|
|
// remove the control from the hashtable as needed
|
|
|
|
if (mForm && (aName == nsGkAtoms::name || aName == nsGkAtoms::id)) {
|
|
GetAttr(kNameSpaceID_None, aName, tmp);
|
|
|
|
if (!tmp.IsEmpty()) {
|
|
mForm->RemoveElementFromTable(this, tmp);
|
|
}
|
|
}
|
|
|
|
if (mForm && aName == nsGkAtoms::type) {
|
|
GetAttr(kNameSpaceID_None, nsGkAtoms::name, tmp);
|
|
|
|
if (!tmp.IsEmpty()) {
|
|
mForm->RemoveElementFromTable(this, tmp);
|
|
}
|
|
|
|
GetAttr(kNameSpaceID_None, nsGkAtoms::id, tmp);
|
|
|
|
if (!tmp.IsEmpty()) {
|
|
mForm->RemoveElementFromTable(this, tmp);
|
|
}
|
|
|
|
mForm->RemoveElement(this, false);
|
|
}
|
|
|
|
if (aName == nsGkAtoms::form) {
|
|
// If @form isn't set or set to the empty string, there were no observer
|
|
// so we don't have to remove it.
|
|
if (nsContentUtils::HasNonEmptyAttr(this, kNameSpaceID_None,
|
|
nsGkAtoms::form)) {
|
|
// The current form id observer is no longer needed.
|
|
// A new one may be added in AfterSetAttr.
|
|
RemoveFormIdObserver();
|
|
}
|
|
}
|
|
}
|
|
|
|
return nsGenericHTMLElement::BeforeSetAttr(aNameSpaceID, aName, aValue,
|
|
aNotify);
|
|
}
|
|
|
|
nsresult nsGenericHTMLFormElement::AfterSetAttr(
|
|
int32_t aNameSpaceID, nsAtom* aName, const nsAttrValue* aValue,
|
|
const nsAttrValue* aOldValue, nsIPrincipal* aMaybeScriptedPrincipal,
|
|
bool aNotify) {
|
|
if (aNameSpaceID == kNameSpaceID_None) {
|
|
// add the control to the hashtable as needed
|
|
|
|
if (mForm && (aName == nsGkAtoms::name || aName == nsGkAtoms::id) &&
|
|
aValue && !aValue->IsEmptyString()) {
|
|
MOZ_ASSERT(aValue->Type() == nsAttrValue::eAtom,
|
|
"Expected atom value for name/id");
|
|
mForm->AddElementToTable(this,
|
|
nsDependentAtomString(aValue->GetAtomValue()));
|
|
}
|
|
|
|
if (mForm && aName == nsGkAtoms::type) {
|
|
nsAutoString tmp;
|
|
|
|
GetAttr(kNameSpaceID_None, nsGkAtoms::name, tmp);
|
|
|
|
if (!tmp.IsEmpty()) {
|
|
mForm->AddElementToTable(this, tmp);
|
|
}
|
|
|
|
GetAttr(kNameSpaceID_None, nsGkAtoms::id, tmp);
|
|
|
|
if (!tmp.IsEmpty()) {
|
|
mForm->AddElementToTable(this, tmp);
|
|
}
|
|
|
|
mForm->AddElement(this, false, aNotify);
|
|
}
|
|
|
|
if (aName == nsGkAtoms::form) {
|
|
// We need a new form id observer.
|
|
DocumentOrShadowRoot* docOrShadow =
|
|
GetUncomposedDocOrConnectedShadowRoot();
|
|
if (docOrShadow) {
|
|
Element* formIdElement = nullptr;
|
|
if (aValue && !aValue->IsEmptyString()) {
|
|
formIdElement = AddFormIdObserver();
|
|
}
|
|
|
|
// Because we have a new @form value (or no more @form), we have to
|
|
// update our form owner.
|
|
UpdateFormOwner(false, formIdElement);
|
|
}
|
|
}
|
|
}
|
|
|
|
return nsGenericHTMLElement::AfterSetAttr(
|
|
aNameSpaceID, aName, aValue, aOldValue, aMaybeScriptedPrincipal, aNotify);
|
|
}
|
|
|
|
void nsGenericHTMLFormElement::GetEventTargetParent(
|
|
EventChainPreVisitor& aVisitor) {
|
|
if (aVisitor.mEvent->IsTrusted() && (aVisitor.mEvent->mMessage == eFocus ||
|
|
aVisitor.mEvent->mMessage == eBlur)) {
|
|
// We have to handle focus/blur event to change focus states in
|
|
// PreHandleEvent to prevent it breaks event target chain creation.
|
|
aVisitor.mWantsPreHandleEvent = true;
|
|
}
|
|
nsGenericHTMLElement::GetEventTargetParent(aVisitor);
|
|
}
|
|
|
|
nsresult nsGenericHTMLFormElement::PreHandleEvent(EventChainVisitor& aVisitor) {
|
|
if (aVisitor.mEvent->IsTrusted()) {
|
|
switch (aVisitor.mEvent->mMessage) {
|
|
case eFocus: {
|
|
// Check to see if focus has bubbled up from a form control's
|
|
// child textfield or button. If that's the case, don't focus
|
|
// this parent file control -- leave focus on the child.
|
|
nsIFormControlFrame* formControlFrame = GetFormControlFrame(true);
|
|
if (formControlFrame &&
|
|
aVisitor.mEvent->mOriginalTarget == static_cast<nsINode*>(this))
|
|
formControlFrame->SetFocus(true, true);
|
|
break;
|
|
}
|
|
case eBlur: {
|
|
nsIFormControlFrame* formControlFrame = GetFormControlFrame(true);
|
|
if (formControlFrame) formControlFrame->SetFocus(false, false);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
return nsGenericHTMLElement::PreHandleEvent(aVisitor);
|
|
}
|
|
|
|
void nsGenericHTMLFormElement::ForgetFieldSet(nsIContent* aFieldset) {
|
|
if (mFieldSet == aFieldset) {
|
|
mFieldSet = nullptr;
|
|
}
|
|
}
|
|
|
|
bool nsGenericHTMLFormElement::CanBeDisabled() const {
|
|
int32_t type = ControlType();
|
|
// It's easier to test the types that _cannot_ be disabled
|
|
return type != NS_FORM_OBJECT && type != NS_FORM_OUTPUT;
|
|
}
|
|
|
|
bool nsGenericHTMLFormElement::DoesReadOnlyApply() const {
|
|
int32_t type = ControlType();
|
|
if (!(type & NS_FORM_INPUT_ELEMENT) && type != NS_FORM_TEXTAREA) {
|
|
return false;
|
|
}
|
|
|
|
switch (type) {
|
|
case NS_FORM_INPUT_HIDDEN:
|
|
case NS_FORM_INPUT_BUTTON:
|
|
case NS_FORM_INPUT_IMAGE:
|
|
case NS_FORM_INPUT_RESET:
|
|
case NS_FORM_INPUT_SUBMIT:
|
|
case NS_FORM_INPUT_RADIO:
|
|
case NS_FORM_INPUT_FILE:
|
|
case NS_FORM_INPUT_CHECKBOX:
|
|
case NS_FORM_INPUT_RANGE:
|
|
case NS_FORM_INPUT_COLOR:
|
|
return false;
|
|
#ifdef DEBUG
|
|
case NS_FORM_TEXTAREA:
|
|
case NS_FORM_INPUT_TEXT:
|
|
case NS_FORM_INPUT_PASSWORD:
|
|
case NS_FORM_INPUT_SEARCH:
|
|
case NS_FORM_INPUT_TEL:
|
|
case NS_FORM_INPUT_EMAIL:
|
|
case NS_FORM_INPUT_URL:
|
|
case NS_FORM_INPUT_NUMBER:
|
|
case NS_FORM_INPUT_DATE:
|
|
case NS_FORM_INPUT_TIME:
|
|
case NS_FORM_INPUT_MONTH:
|
|
case NS_FORM_INPUT_WEEK:
|
|
case NS_FORM_INPUT_DATETIME_LOCAL:
|
|
return true;
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Unexpected input type in DoesReadOnlyApply()");
|
|
return true;
|
|
#else // DEBUG
|
|
default:
|
|
return true;
|
|
#endif // DEBUG
|
|
}
|
|
}
|
|
|
|
bool nsGenericHTMLFormElement::IsHTMLFocusable(bool aWithMouse,
|
|
bool* aIsFocusable,
|
|
int32_t* aTabIndex) {
|
|
if (nsGenericHTMLElement::IsHTMLFocusable(aWithMouse, aIsFocusable,
|
|
aTabIndex)) {
|
|
return true;
|
|
}
|
|
|
|
#ifdef XP_MACOSX
|
|
*aIsFocusable = (!aWithMouse || nsFocusManager::sMouseFocusesFormControl) &&
|
|
*aIsFocusable;
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
EventStates nsGenericHTMLFormElement::IntrinsicState() const {
|
|
// If you add attribute-dependent states here, you need to add them them to
|
|
// AfterSetAttr too. And add them to AfterSetAttr for all subclasses that
|
|
// implement IntrinsicState() and are affected by that attribute.
|
|
EventStates state = nsGenericHTMLElement::IntrinsicState();
|
|
|
|
if (mForm && mForm->IsDefaultSubmitElement(this)) {
|
|
NS_ASSERTION(IsSubmitControl(),
|
|
"Default submit element that isn't a submit control.");
|
|
// We are the default submit element (:default)
|
|
state |= NS_EVENT_STATE_DEFAULT;
|
|
}
|
|
|
|
// Make the text controls read-write
|
|
if (!state.HasState(NS_EVENT_STATE_MOZ_READWRITE) && DoesReadOnlyApply()) {
|
|
if (!GetBoolAttr(nsGkAtoms::readonly)) {
|
|
state |= NS_EVENT_STATE_MOZ_READWRITE;
|
|
state &= ~NS_EVENT_STATE_MOZ_READONLY;
|
|
}
|
|
}
|
|
|
|
return state;
|
|
}
|
|
|
|
nsGenericHTMLFormElement::FocusTristate nsGenericHTMLFormElement::FocusState() {
|
|
// We can't be focused if we aren't in a (composed) document
|
|
Document* doc = GetComposedDoc();
|
|
if (!doc) return eUnfocusable;
|
|
|
|
// first see if we are disabled or not. If disabled then do nothing.
|
|
if (IsDisabled()) {
|
|
return eUnfocusable;
|
|
}
|
|
|
|
// If the window is not active, do not allow the focus to bring the
|
|
// window to the front. We update the focus controller, but do
|
|
// nothing else.
|
|
if (nsPIDOMWindowOuter* win = doc->GetWindow()) {
|
|
nsCOMPtr<nsPIDOMWindowOuter> rootWindow = win->GetPrivateRoot();
|
|
|
|
nsCOMPtr<nsIFocusManager> fm = do_GetService(FOCUSMANAGER_CONTRACTID);
|
|
if (fm && rootWindow) {
|
|
nsCOMPtr<mozIDOMWindowProxy> activeWindow;
|
|
fm->GetActiveWindow(getter_AddRefs(activeWindow));
|
|
if (activeWindow == rootWindow) {
|
|
return eActiveWindow;
|
|
}
|
|
}
|
|
}
|
|
|
|
return eInactiveWindow;
|
|
}
|
|
|
|
Element* nsGenericHTMLFormElement::AddFormIdObserver() {
|
|
nsAutoString formId;
|
|
DocumentOrShadowRoot* docOrShadow = GetUncomposedDocOrConnectedShadowRoot();
|
|
GetAttr(kNameSpaceID_None, nsGkAtoms::form, formId);
|
|
NS_ASSERTION(!formId.IsEmpty(),
|
|
"@form value should not be the empty string!");
|
|
RefPtr<nsAtom> atom = NS_Atomize(formId);
|
|
|
|
return docOrShadow->AddIDTargetObserver(atom, FormIdUpdated, this, false);
|
|
}
|
|
|
|
void nsGenericHTMLFormElement::RemoveFormIdObserver() {
|
|
DocumentOrShadowRoot* docOrShadow = GetUncomposedDocOrConnectedShadowRoot();
|
|
if (!docOrShadow) {
|
|
return;
|
|
}
|
|
|
|
nsAutoString formId;
|
|
GetAttr(kNameSpaceID_None, nsGkAtoms::form, formId);
|
|
NS_ASSERTION(!formId.IsEmpty(),
|
|
"@form value should not be the empty string!");
|
|
RefPtr<nsAtom> atom = NS_Atomize(formId);
|
|
|
|
docOrShadow->RemoveIDTargetObserver(atom, FormIdUpdated, this, false);
|
|
}
|
|
|
|
/* static */
|
|
bool nsGenericHTMLFormElement::FormIdUpdated(Element* aOldElement,
|
|
Element* aNewElement,
|
|
void* aData) {
|
|
nsGenericHTMLFormElement* element =
|
|
static_cast<nsGenericHTMLFormElement*>(aData);
|
|
|
|
NS_ASSERTION(element->IsHTMLElement(), "aData should be an HTML element");
|
|
|
|
element->UpdateFormOwner(false, aNewElement);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool nsGenericHTMLFormElement::IsElementDisabledForEvents(WidgetEvent* aEvent,
|
|
nsIFrame* aFrame) {
|
|
MOZ_ASSERT(aEvent);
|
|
|
|
// Allow dispatch of CustomEvent and untrusted Events.
|
|
if (!aEvent->IsTrusted()) {
|
|
return false;
|
|
}
|
|
|
|
switch (aEvent->mMessage) {
|
|
case eAnimationStart:
|
|
case eAnimationEnd:
|
|
case eAnimationIteration:
|
|
case eAnimationCancel:
|
|
case eMouseMove:
|
|
case eMouseOver:
|
|
case eMouseOut:
|
|
case eMouseEnter:
|
|
case eMouseLeave:
|
|
case ePointerMove:
|
|
case ePointerOver:
|
|
case ePointerOut:
|
|
case ePointerEnter:
|
|
case ePointerLeave:
|
|
case eTransitionCancel:
|
|
case eTransitionEnd:
|
|
case eTransitionRun:
|
|
case eTransitionStart:
|
|
case eWheel:
|
|
case eLegacyMouseLineOrPageScroll:
|
|
case eLegacyMousePixelScroll:
|
|
return false;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// FIXME(emilio): This poking at the style of the frame is slightly bogus
|
|
// unless we flush before every event, which we don't really want to do.
|
|
if (aFrame && aFrame->StyleUI()->mUserInput == StyleUserInput::None) {
|
|
return true;
|
|
}
|
|
|
|
return IsDisabled();
|
|
}
|
|
|
|
void nsGenericHTMLFormElement::UpdateFormOwner(bool aBindToTree,
|
|
Element* aFormIdElement) {
|
|
MOZ_ASSERT(!aBindToTree || !aFormIdElement,
|
|
"aFormIdElement shouldn't be set if aBindToTree is true!");
|
|
|
|
bool needStateUpdate = false;
|
|
if (!aBindToTree) {
|
|
needStateUpdate = mForm && mForm->IsDefaultSubmitElement(this);
|
|
ClearForm(true, false);
|
|
}
|
|
|
|
HTMLFormElement* oldForm = mForm;
|
|
|
|
if (!mForm) {
|
|
// If @form is set, we have to use that to find the form.
|
|
nsAutoString formId;
|
|
if (GetAttr(kNameSpaceID_None, nsGkAtoms::form, formId)) {
|
|
if (!formId.IsEmpty()) {
|
|
Element* element = nullptr;
|
|
|
|
if (aBindToTree) {
|
|
element = AddFormIdObserver();
|
|
} else {
|
|
element = aFormIdElement;
|
|
}
|
|
|
|
NS_ASSERTION(!IsInComposedDoc() ||
|
|
element == GetUncomposedDocOrConnectedShadowRoot()
|
|
->GetElementById(formId),
|
|
"element should be equals to the current element "
|
|
"associated with the id in @form!");
|
|
|
|
if (element && element->IsHTMLElement(nsGkAtoms::form) &&
|
|
nsContentUtils::IsInSameAnonymousTree(this, element)) {
|
|
SetForm(static_cast<HTMLFormElement*>(element), aBindToTree);
|
|
}
|
|
}
|
|
} else {
|
|
// We now have a parent, so we may have picked up an ancestor form. Search
|
|
// for it. Note that if mForm is already set we don't want to do this,
|
|
// because that means someone (probably the content sink) has already set
|
|
// it to the right value. Also note that even if being bound here didn't
|
|
// change our parent, we still need to search, since our parent chain
|
|
// probably changed _somewhere_.
|
|
SetForm(FindAncestorForm(), aBindToTree);
|
|
}
|
|
}
|
|
|
|
if (mForm && !HasFlag(ADDED_TO_FORM)) {
|
|
// Now we need to add ourselves to the form
|
|
nsAutoString nameVal, idVal;
|
|
GetAttr(kNameSpaceID_None, nsGkAtoms::name, nameVal);
|
|
GetAttr(kNameSpaceID_None, nsGkAtoms::id, idVal);
|
|
|
|
SetFlags(ADDED_TO_FORM);
|
|
|
|
// Notify only if we just found this mForm.
|
|
mForm->AddElement(this, true, oldForm == nullptr);
|
|
|
|
if (!nameVal.IsEmpty()) {
|
|
mForm->AddElementToTable(this, nameVal);
|
|
}
|
|
|
|
if (!idVal.IsEmpty()) {
|
|
mForm->AddElementToTable(this, idVal);
|
|
}
|
|
}
|
|
|
|
if (mForm != oldForm || needStateUpdate) {
|
|
UpdateState(true);
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLFormElement::UpdateFieldSet(bool aNotify) {
|
|
if (IsInNativeAnonymousSubtree()) {
|
|
MOZ_ASSERT(!mFieldSet);
|
|
return;
|
|
}
|
|
|
|
nsIContent* parent = nullptr;
|
|
nsIContent* prev = nullptr;
|
|
|
|
for (parent = GetParent(); parent;
|
|
prev = parent, parent = parent->GetParent()) {
|
|
HTMLFieldSetElement* fieldset = HTMLFieldSetElement::FromNode(parent);
|
|
if (fieldset && (!prev || fieldset->GetFirstLegend() != prev)) {
|
|
if (mFieldSet == fieldset) {
|
|
// We already have the right fieldset;
|
|
return;
|
|
}
|
|
|
|
if (mFieldSet) {
|
|
mFieldSet->RemoveElement(this);
|
|
}
|
|
mFieldSet = fieldset;
|
|
fieldset->AddElement(this);
|
|
|
|
// The disabled state may have changed
|
|
FieldSetDisabledChanged(aNotify);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// No fieldset found.
|
|
if (mFieldSet) {
|
|
mFieldSet->RemoveElement(this);
|
|
mFieldSet = nullptr;
|
|
// The disabled state may have changed
|
|
FieldSetDisabledChanged(aNotify);
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLFormElement::UpdateDisabledState(bool aNotify) {
|
|
if (!CanBeDisabled()) {
|
|
return;
|
|
}
|
|
|
|
bool isDisabled = HasAttr(kNameSpaceID_None, nsGkAtoms::disabled);
|
|
if (!isDisabled && mFieldSet) {
|
|
isDisabled = mFieldSet->IsDisabled();
|
|
}
|
|
|
|
EventStates disabledStates;
|
|
if (isDisabled) {
|
|
disabledStates |= NS_EVENT_STATE_DISABLED;
|
|
} else {
|
|
disabledStates |= NS_EVENT_STATE_ENABLED;
|
|
}
|
|
|
|
EventStates oldDisabledStates = State() & DISABLED_STATES;
|
|
EventStates changedStates = disabledStates ^ oldDisabledStates;
|
|
|
|
if (!changedStates.IsEmpty()) {
|
|
ToggleStates(changedStates, aNotify);
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLFormElement::UpdateRequiredState(bool aIsRequired,
|
|
bool aNotify) {
|
|
#ifdef DEBUG
|
|
int32_t type = ControlType();
|
|
#endif
|
|
MOZ_ASSERT((type & NS_FORM_INPUT_ELEMENT) || type == NS_FORM_SELECT ||
|
|
type == NS_FORM_TEXTAREA,
|
|
"This should be called only on types that @required applies");
|
|
|
|
#ifdef DEBUG
|
|
HTMLInputElement* input = HTMLInputElement::FromNode(this);
|
|
if (input) {
|
|
MOZ_ASSERT(
|
|
input->DoesRequiredApply(),
|
|
"This should be called only on input types that @required applies");
|
|
}
|
|
#endif
|
|
|
|
EventStates requiredStates;
|
|
if (aIsRequired) {
|
|
requiredStates |= NS_EVENT_STATE_REQUIRED;
|
|
} else {
|
|
requiredStates |= NS_EVENT_STATE_OPTIONAL;
|
|
}
|
|
|
|
EventStates oldRequiredStates = State() & REQUIRED_STATES;
|
|
EventStates changedStates = requiredStates ^ oldRequiredStates;
|
|
|
|
if (!changedStates.IsEmpty()) {
|
|
ToggleStates(changedStates, aNotify);
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLFormElement::FieldSetDisabledChanged(bool aNotify) {
|
|
UpdateDisabledState(aNotify);
|
|
}
|
|
|
|
bool nsGenericHTMLFormElement::IsLabelable() const {
|
|
uint32_t type = ControlType();
|
|
return (type & NS_FORM_INPUT_ELEMENT && type != NS_FORM_INPUT_HIDDEN) ||
|
|
type & NS_FORM_BUTTON_ELEMENT || type == NS_FORM_OUTPUT ||
|
|
type == NS_FORM_SELECT || type == NS_FORM_TEXTAREA;
|
|
}
|
|
|
|
void nsGenericHTMLFormElement::GetFormAction(nsString& aValue) {
|
|
uint32_t type = ControlType();
|
|
if (!(type & NS_FORM_INPUT_ELEMENT) && !(type & NS_FORM_BUTTON_ELEMENT)) {
|
|
return;
|
|
}
|
|
|
|
if (!GetAttr(kNameSpaceID_None, nsGkAtoms::formaction, aValue) ||
|
|
aValue.IsEmpty()) {
|
|
Document* document = OwnerDoc();
|
|
nsIURI* docURI = document->GetDocumentURI();
|
|
if (docURI) {
|
|
nsAutoCString spec;
|
|
nsresult rv = docURI->GetSpec(spec);
|
|
if (NS_FAILED(rv)) {
|
|
return;
|
|
}
|
|
|
|
CopyUTF8toUTF16(spec, aValue);
|
|
}
|
|
} else {
|
|
GetURIAttr(nsGkAtoms::formaction, nullptr, aValue);
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
void nsGenericHTMLElement::Click(CallerType aCallerType) {
|
|
if (IsDisabled() || HandlingClick()) {
|
|
return;
|
|
}
|
|
|
|
// Strong in case the event kills it
|
|
nsCOMPtr<Document> doc = GetComposedDoc();
|
|
|
|
RefPtr<nsPresContext> context;
|
|
if (doc) {
|
|
context = doc->GetPresContext();
|
|
}
|
|
|
|
SetHandlingClick();
|
|
|
|
// Mark this event trusted if Click() is called from system code.
|
|
WidgetMouseEvent event(aCallerType == CallerType::System, eMouseClick,
|
|
nullptr, WidgetMouseEvent::eReal);
|
|
event.mFlags.mIsPositionless = true;
|
|
event.mInputSource = MouseEvent_Binding::MOZ_SOURCE_UNKNOWN;
|
|
|
|
EventDispatcher::Dispatch(static_cast<nsIContent*>(this), context, &event);
|
|
|
|
ClearHandlingClick();
|
|
}
|
|
|
|
bool nsGenericHTMLElement::IsHTMLFocusable(bool aWithMouse, bool* aIsFocusable,
|
|
int32_t* aTabIndex) {
|
|
Document* doc = GetComposedDoc();
|
|
if (!doc || doc->HasFlag(NODE_IS_EDITABLE)) {
|
|
// In designMode documents we only allow focusing the document.
|
|
if (aTabIndex) {
|
|
*aTabIndex = -1;
|
|
}
|
|
|
|
*aIsFocusable = false;
|
|
|
|
return true;
|
|
}
|
|
|
|
int32_t tabIndex = TabIndex();
|
|
bool disabled = false;
|
|
bool disallowOverridingFocusability = true;
|
|
|
|
if (IsEditableRoot()) {
|
|
// Editable roots should always be focusable.
|
|
disallowOverridingFocusability = true;
|
|
|
|
// Ignore the disabled attribute in editable contentEditable/designMode
|
|
// roots.
|
|
if (!HasAttr(kNameSpaceID_None, nsGkAtoms::tabindex)) {
|
|
// The default value for tabindex should be 0 for editable
|
|
// contentEditable roots.
|
|
tabIndex = 0;
|
|
}
|
|
} else {
|
|
disallowOverridingFocusability = false;
|
|
|
|
// Just check for disabled attribute on form controls
|
|
disabled = IsDisabled();
|
|
if (disabled) {
|
|
tabIndex = -1;
|
|
}
|
|
}
|
|
|
|
if (aTabIndex) {
|
|
*aTabIndex = tabIndex;
|
|
}
|
|
|
|
// If a tabindex is specified at all, or the default tabindex is 0, we're
|
|
// focusable
|
|
*aIsFocusable =
|
|
(tabIndex >= 0 ||
|
|
(!disabled && HasAttr(kNameSpaceID_None, nsGkAtoms::tabindex)));
|
|
|
|
return disallowOverridingFocusability;
|
|
}
|
|
|
|
void nsGenericHTMLElement::RegUnRegAccessKey(bool aDoReg) {
|
|
// first check to see if we have an access key
|
|
nsAutoString accessKey;
|
|
GetAttr(kNameSpaceID_None, nsGkAtoms::accesskey, accessKey);
|
|
if (accessKey.IsEmpty()) {
|
|
return;
|
|
}
|
|
|
|
// We have an access key, so get the ESM from the pres context.
|
|
nsPresContext* presContext = GetPresContext(eForUncomposedDoc);
|
|
|
|
if (presContext) {
|
|
EventStateManager* esm = presContext->EventStateManager();
|
|
|
|
// Register or unregister as appropriate.
|
|
if (aDoReg) {
|
|
esm->RegisterAccessKey(this, (uint32_t)accessKey.First());
|
|
} else {
|
|
esm->UnregisterAccessKey(this, (uint32_t)accessKey.First());
|
|
}
|
|
}
|
|
}
|
|
|
|
bool nsGenericHTMLElement::PerformAccesskey(bool aKeyCausesActivation,
|
|
bool aIsTrustedEvent) {
|
|
nsPresContext* presContext = GetPresContext(eForUncomposedDoc);
|
|
if (!presContext) {
|
|
return false;
|
|
}
|
|
|
|
// It's hard to say what HTML4 wants us to do in all cases.
|
|
bool focused = true;
|
|
nsFocusManager* fm = nsFocusManager::GetFocusManager();
|
|
if (fm) {
|
|
fm->SetFocus(this, nsIFocusManager::FLAG_BYKEY |
|
|
nsIFocusManager::FLAG_BYELEMENTFOCUS);
|
|
|
|
// Return true if the element became the current focus within its window.
|
|
nsPIDOMWindowOuter* window = OwnerDoc()->GetWindow();
|
|
focused = (window && window->GetFocusedElement());
|
|
}
|
|
|
|
if (aKeyCausesActivation) {
|
|
// Click on it if the users prefs indicate to do so.
|
|
AutoPopupStatePusher popupStatePusher(
|
|
aIsTrustedEvent ? PopupBlocker::openAllowed : PopupBlocker::openAbused);
|
|
DispatchSimulatedClick(this, aIsTrustedEvent, presContext);
|
|
}
|
|
|
|
return focused;
|
|
}
|
|
|
|
nsresult nsGenericHTMLElement::DispatchSimulatedClick(
|
|
nsGenericHTMLElement* aElement, bool aIsTrusted,
|
|
nsPresContext* aPresContext) {
|
|
WidgetMouseEvent event(aIsTrusted, eMouseClick, nullptr,
|
|
WidgetMouseEvent::eReal);
|
|
event.mInputSource = MouseEvent_Binding::MOZ_SOURCE_KEYBOARD;
|
|
event.mFlags.mIsPositionless = true;
|
|
return EventDispatcher::Dispatch(ToSupports(aElement), aPresContext, &event);
|
|
}
|
|
|
|
already_AddRefed<TextEditor> nsGenericHTMLElement::GetAssociatedEditor() {
|
|
// If contenteditable is ever implemented, it might need to do something
|
|
// different here?
|
|
|
|
RefPtr<TextEditor> textEditor = GetTextEditorInternal();
|
|
return textEditor.forget();
|
|
}
|
|
|
|
// static
|
|
void nsGenericHTMLElement::SyncEditorsOnSubtree(nsIContent* content) {
|
|
/* Sync this node */
|
|
nsGenericHTMLElement* element = FromNode(content);
|
|
if (element) {
|
|
RefPtr<TextEditor> textEditor = element->GetAssociatedEditor();
|
|
if (textEditor) {
|
|
textEditor->SyncRealTimeSpell();
|
|
}
|
|
}
|
|
|
|
/* Sync all children */
|
|
for (nsIContent* child = content->GetFirstChild(); child;
|
|
child = child->GetNextSibling()) {
|
|
SyncEditorsOnSubtree(child);
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLElement::RecompileScriptEventListeners() {
|
|
int32_t i, count = mAttrs.AttrCount();
|
|
for (i = 0; i < count; ++i) {
|
|
const nsAttrName* name = mAttrs.AttrNameAt(i);
|
|
|
|
// Eventlistenener-attributes are always in the null namespace
|
|
if (!name->IsAtom()) {
|
|
continue;
|
|
}
|
|
|
|
nsAtom* attr = name->Atom();
|
|
if (!IsEventAttributeName(attr)) {
|
|
continue;
|
|
}
|
|
|
|
nsAutoString value;
|
|
GetAttr(kNameSpaceID_None, attr, value);
|
|
SetEventHandler(GetEventNameForAttr(attr), value, true);
|
|
}
|
|
}
|
|
|
|
bool nsGenericHTMLElement::IsEditableRoot() const {
|
|
Document* document = GetComposedDoc();
|
|
if (!document) {
|
|
return false;
|
|
}
|
|
|
|
if (document->HasFlag(NODE_IS_EDITABLE)) {
|
|
return false;
|
|
}
|
|
|
|
if (GetContentEditableValue() != eTrue) {
|
|
return false;
|
|
}
|
|
|
|
nsIContent* parent = GetParent();
|
|
|
|
return !parent || !parent->HasFlag(NODE_IS_EDITABLE);
|
|
}
|
|
|
|
static void MakeContentDescendantsEditable(nsIContent* aContent,
|
|
Document* aDocument) {
|
|
// If aContent is not an element, we just need to update its
|
|
// internal editable state and don't need to notify anyone about
|
|
// that. For elements, we need to send a ContentStateChanged
|
|
// notification.
|
|
if (!aContent->IsElement()) {
|
|
aContent->UpdateEditableState(false);
|
|
return;
|
|
}
|
|
|
|
Element* element = aContent->AsElement();
|
|
|
|
element->UpdateEditableState(true);
|
|
|
|
for (nsIContent* child = aContent->GetFirstChild(); child;
|
|
child = child->GetNextSibling()) {
|
|
if (!child->IsElement() ||
|
|
!child->AsElement()->HasAttr(kNameSpaceID_None,
|
|
nsGkAtoms::contenteditable)) {
|
|
MakeContentDescendantsEditable(child, aDocument);
|
|
}
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLElement::ChangeEditableState(int32_t aChange) {
|
|
Document* document = GetComposedDoc();
|
|
if (!document) {
|
|
return;
|
|
}
|
|
|
|
Document::EditingState previousEditingState = Document::EditingState::eOff;
|
|
if (aChange != 0) {
|
|
document->ChangeContentEditableCount(this, aChange);
|
|
previousEditingState = document->GetEditingState();
|
|
}
|
|
|
|
if (document->HasFlag(NODE_IS_EDITABLE)) {
|
|
document = nullptr;
|
|
}
|
|
|
|
// MakeContentDescendantsEditable is going to call ContentStateChanged for
|
|
// this element and all descendants if editable state has changed.
|
|
// We might as well wrap it all in one script blocker.
|
|
nsAutoScriptBlocker scriptBlocker;
|
|
MakeContentDescendantsEditable(this, document);
|
|
|
|
// If the document already had contenteditable and JS adds new
|
|
// contenteditable, that might cause changing editing host to current editing
|
|
// host's ancestor. In such case, HTMLEditor needs to know that
|
|
// synchronously to update selection limitter.
|
|
if (document && aChange > 0 &&
|
|
previousEditingState == Document::EditingState::eContentEditable) {
|
|
if (HTMLEditor* htmlEditor =
|
|
nsContentUtils::GetHTMLEditor(document->GetPresContext())) {
|
|
htmlEditor->NotifyEditingHostMaybeChanged();
|
|
}
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
nsGenericHTMLFormElementWithState::nsGenericHTMLFormElementWithState(
|
|
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
|
|
FromParser aFromParser, uint8_t aType)
|
|
: nsGenericHTMLFormElement(std::move(aNodeInfo), aType),
|
|
mControlNumber(!!(aFromParser & FROM_PARSER_NETWORK)
|
|
? OwnerDoc()->GetNextControlNumber()
|
|
: -1) {
|
|
mStateKey.SetIsVoid(true);
|
|
}
|
|
|
|
void nsGenericHTMLFormElementWithState::GenerateStateKey() {
|
|
// Keep the key if already computed
|
|
if (!mStateKey.IsVoid()) {
|
|
return;
|
|
}
|
|
|
|
Document* doc = GetUncomposedDoc();
|
|
if (!doc) {
|
|
mStateKey.Truncate();
|
|
return;
|
|
}
|
|
|
|
// Generate the state key
|
|
nsContentUtils::GenerateStateKey(this, doc, mStateKey);
|
|
|
|
// If the state key is blank, this is anonymous content or for whatever
|
|
// reason we are not supposed to save/restore state: keep it as such.
|
|
if (!mStateKey.IsEmpty()) {
|
|
// Add something unique to content so layout doesn't muck us up.
|
|
mStateKey += "-C";
|
|
}
|
|
}
|
|
|
|
PresState* nsGenericHTMLFormElementWithState::GetPrimaryPresState() {
|
|
if (mStateKey.IsEmpty()) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsCOMPtr<nsILayoutHistoryState> history = GetLayoutHistory(false);
|
|
|
|
if (!history) {
|
|
return nullptr;
|
|
}
|
|
|
|
// Get the pres state for this key, if it doesn't exist, create one.
|
|
PresState* result = history->GetState(mStateKey);
|
|
if (!result) {
|
|
UniquePtr<PresState> newState = NewPresState();
|
|
result = newState.get();
|
|
history->AddState(mStateKey, std::move(newState));
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
already_AddRefed<nsILayoutHistoryState>
|
|
nsGenericHTMLFormElementWithState::GetLayoutHistory(bool aRead) {
|
|
nsCOMPtr<Document> doc = GetUncomposedDoc();
|
|
if (!doc) {
|
|
return nullptr;
|
|
}
|
|
|
|
//
|
|
// Get the history
|
|
//
|
|
nsCOMPtr<nsILayoutHistoryState> history = doc->GetLayoutHistoryState();
|
|
if (!history) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (aRead && !history->HasStates()) {
|
|
return nullptr;
|
|
}
|
|
|
|
return history.forget();
|
|
}
|
|
|
|
bool nsGenericHTMLFormElementWithState::RestoreFormControlState() {
|
|
MOZ_ASSERT(!mStateKey.IsVoid(),
|
|
"GenerateStateKey must already have been called");
|
|
|
|
if (mStateKey.IsEmpty()) {
|
|
return false;
|
|
}
|
|
|
|
nsCOMPtr<nsILayoutHistoryState> history = GetLayoutHistory(true);
|
|
if (!history) {
|
|
return false;
|
|
}
|
|
|
|
// Get the pres state for this key
|
|
PresState* state = history->GetState(mStateKey);
|
|
if (state) {
|
|
bool result = RestoreState(state);
|
|
history->RemoveState(mStateKey);
|
|
return result;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void nsGenericHTMLFormElementWithState::NodeInfoChanged(Document* aOldDoc) {
|
|
nsGenericHTMLElement::NodeInfoChanged(aOldDoc);
|
|
|
|
// We need to regenerate the state key now we're in a new document. Clearing
|
|
// mControlNumber means we stop considering this control to be parser
|
|
// inserted, and we'll generate a state key based on its position in the
|
|
// document rather than the order it was inserted into the document.
|
|
mControlNumber = -1;
|
|
mStateKey.SetIsVoid(true);
|
|
}
|
|
|
|
nsSize nsGenericHTMLElement::GetWidthHeightForImage(
|
|
RefPtr<imgRequestProxy>& aImageRequest) {
|
|
nsSize size(0, 0);
|
|
|
|
nsIFrame* frame = GetPrimaryFrame(FlushType::Layout);
|
|
|
|
if (frame) {
|
|
size = frame->GetContentRect().Size();
|
|
|
|
size.width = nsPresContext::AppUnitsToIntCSSPixels(size.width);
|
|
size.height = nsPresContext::AppUnitsToIntCSSPixels(size.height);
|
|
} else {
|
|
const nsAttrValue* value;
|
|
nsCOMPtr<imgIContainer> image;
|
|
if (aImageRequest) {
|
|
aImageRequest->GetImage(getter_AddRefs(image));
|
|
}
|
|
|
|
if ((value = GetParsedAttr(nsGkAtoms::width)) &&
|
|
value->Type() == nsAttrValue::eInteger) {
|
|
size.width = value->GetIntegerValue();
|
|
} else if (image) {
|
|
image->GetWidth(&size.width);
|
|
}
|
|
|
|
if ((value = GetParsedAttr(nsGkAtoms::height)) &&
|
|
value->Type() == nsAttrValue::eInteger) {
|
|
size.height = value->GetIntegerValue();
|
|
} else if (image) {
|
|
image->GetHeight(&size.height);
|
|
}
|
|
}
|
|
|
|
NS_ASSERTION(size.width >= 0, "negative width");
|
|
NS_ASSERTION(size.height >= 0, "negative height");
|
|
return size;
|
|
}
|
|
|
|
bool nsGenericHTMLElement::IsEventAttributeNameInternal(nsAtom* aName) {
|
|
return nsContentUtils::IsEventAttributeName(aName, EventNameType_HTML);
|
|
}
|
|
|
|
/**
|
|
* Construct a URI from a string, as an element.src attribute
|
|
* would be set to. Helper for the media elements.
|
|
*/
|
|
nsresult nsGenericHTMLElement::NewURIFromString(const nsAString& aURISpec,
|
|
nsIURI** aURI) {
|
|
NS_ENSURE_ARG_POINTER(aURI);
|
|
|
|
*aURI = nullptr;
|
|
|
|
nsCOMPtr<Document> doc = OwnerDoc();
|
|
|
|
nsresult rv = nsContentUtils::NewURIWithDocumentCharset(aURI, aURISpec, doc,
|
|
GetBaseURI());
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
bool equal;
|
|
if (aURISpec.IsEmpty() && doc->GetDocumentURI() &&
|
|
NS_SUCCEEDED(doc->GetDocumentURI()->Equals(*aURI, &equal)) && equal) {
|
|
// Assume an element can't point to a fragment of its embedding
|
|
// document. Fail here instead of returning the recursive URI
|
|
// and waiting for the subsequent load to fail.
|
|
NS_RELEASE(*aURI);
|
|
return NS_ERROR_DOM_INVALID_STATE_ERR;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsGenericHTMLElement::GetInnerText(mozilla::dom::DOMString& aValue,
|
|
mozilla::ErrorResult& aError) {
|
|
// innerText depends on layout. For example, white space processing is
|
|
// something that happens during reflow and which must be reflected by
|
|
// innerText. So for:
|
|
//
|
|
// <div style="white-space:normal"> A B C </div>
|
|
//
|
|
// innerText should give "A B C".
|
|
//
|
|
// The approach taken here to avoid the expense of reflow is to flush style
|
|
// and then see whether it's necessary to flush layout afterwards. Flushing
|
|
// layout can be skipped if we can detect that the element or its descendants
|
|
// are not dirty.
|
|
|
|
// Obtain the composed doc to handle elements in Shadow DOM.
|
|
Document* doc = GetComposedDoc();
|
|
if (doc) {
|
|
doc->FlushPendingNotifications(FlushType::Style);
|
|
}
|
|
|
|
// Elements with `display: content` will not have a frame. To handle Shadow
|
|
// DOM, walk the flattened tree looking for parent frame.
|
|
nsIFrame* frame = GetPrimaryFrame();
|
|
if (IsDisplayContents()) {
|
|
for (Element* parent = GetFlattenedTreeParentElement(); parent;
|
|
parent = parent->GetFlattenedTreeParentElement()) {
|
|
frame = parent->GetPrimaryFrame();
|
|
if (frame) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Check for dirty reflow roots in the subtree from targetFrame; this requires
|
|
// a reflow flush.
|
|
bool dirty = frame && frame->PresShell()->FrameIsAncestorOfDirtyRoot(frame);
|
|
|
|
// The way we do that is by checking whether the element has either of the two
|
|
// dirty bits (NS_FRAME_IS_DIRTY or NS_FRAME_HAS_DIRTY_DESCENDANTS) or if any
|
|
// ancestor has NS_FRAME_IS_DIRTY. We need to check for NS_FRAME_IS_DIRTY on
|
|
// ancestors since that is something that implies NS_FRAME_IS_DIRTY on all
|
|
// descendants.
|
|
dirty |= frame && frame->HasAnyStateBits(NS_FRAME_HAS_DIRTY_CHILDREN);
|
|
while (!dirty && frame) {
|
|
dirty |= frame->HasAnyStateBits(NS_FRAME_IS_DIRTY);
|
|
frame = frame->GetInFlowParent();
|
|
}
|
|
|
|
// Flush layout if we determined a reflow is required.
|
|
if (dirty && doc) {
|
|
doc->FlushPendingNotifications(FlushType::Layout);
|
|
}
|
|
|
|
if (!IsRendered()) {
|
|
GetTextContentInternal(aValue, aError);
|
|
} else {
|
|
nsRange::GetInnerTextNoFlush(aValue, aError, this);
|
|
}
|
|
}
|
|
|
|
void nsGenericHTMLElement::SetInnerText(const nsAString& aValue) {
|
|
// Batch possible DOMSubtreeModified events.
|
|
mozAutoSubtreeModified subtree(OwnerDoc(), nullptr);
|
|
FireNodeRemovedForChildren();
|
|
|
|
// Might as well stick a batch around this since we're performing several
|
|
// mutations.
|
|
mozAutoDocUpdate updateBatch(GetComposedDoc(), true);
|
|
nsAutoMutationBatch mb;
|
|
|
|
mb.Init(this, true, false);
|
|
|
|
while (HasChildren()) {
|
|
RemoveChildNode(nsINode::GetFirstChild(), true);
|
|
}
|
|
|
|
mb.RemovalDone();
|
|
|
|
nsString str;
|
|
const char16_t* s = aValue.BeginReading();
|
|
const char16_t* end = aValue.EndReading();
|
|
while (true) {
|
|
if (s != end && *s == '\r' && s + 1 != end && s[1] == '\n') {
|
|
// a \r\n pair should only generate one <br>, so just skip the \r
|
|
++s;
|
|
}
|
|
if (s == end || *s == '\r' || *s == '\n') {
|
|
if (!str.IsEmpty()) {
|
|
RefPtr<nsTextNode> textContent =
|
|
new nsTextNode(NodeInfo()->NodeInfoManager());
|
|
textContent->SetText(str, true);
|
|
AppendChildTo(textContent, true);
|
|
}
|
|
if (s == end) {
|
|
break;
|
|
}
|
|
str.Truncate();
|
|
RefPtr<mozilla::dom::NodeInfo> ni =
|
|
NodeInfo()->NodeInfoManager()->GetNodeInfo(
|
|
nsGkAtoms::br, nullptr, kNameSpaceID_XHTML, ELEMENT_NODE);
|
|
RefPtr<HTMLBRElement> br = new HTMLBRElement(ni.forget());
|
|
AppendChildTo(br, true);
|
|
} else {
|
|
str.Append(*s);
|
|
}
|
|
++s;
|
|
}
|
|
|
|
mb.NodesAdded();
|
|
}
|
|
|
|
// https://html.spec.whatwg.org/commit-snapshots/b48bb2238269d90ea4f455a52cdf29505aff3df0/#dom-attachinternals
|
|
already_AddRefed<ElementInternals> nsGenericHTMLElement::AttachInternals(
|
|
ErrorResult& aRv) {
|
|
CustomElementData* ceData = GetCustomElementData();
|
|
|
|
// 1. If element's is value is not null, then throw a "NotSupportedError"
|
|
// DOMException.
|
|
nsAtom* isAtom = ceData ? ceData->GetIs(this) : nullptr;
|
|
nsAtom* nameAtom = NodeInfo()->NameAtom();
|
|
if (isAtom) {
|
|
aRv.ThrowNotSupportedError(nsPrintfCString(
|
|
"Cannot attach ElementInternals to a customized built-in element "
|
|
"'%s'",
|
|
NS_ConvertUTF16toUTF8(isAtom->GetUTF16String()).get()));
|
|
return nullptr;
|
|
}
|
|
|
|
// 2. Let definition be the result of looking up a custom element definition
|
|
// given element's node document, its namespace, its local name, and null
|
|
// as is value.
|
|
CustomElementDefinition* definition = nullptr;
|
|
if (ceData) {
|
|
definition = ceData->GetCustomElementDefinition();
|
|
|
|
// If the definition is null, the element possible hasn't yet upgraded.
|
|
// Fallback to use LookupCustomElementDefinition to find its definition.
|
|
if (!definition) {
|
|
definition = nsContentUtils::LookupCustomElementDefinition(
|
|
NodeInfo()->GetDocument(), nameAtom, NodeInfo()->NamespaceID(),
|
|
ceData->GetCustomElementType());
|
|
}
|
|
}
|
|
|
|
// 3. If definition is null, then throw an "NotSupportedError" DOMException.
|
|
if (!definition) {
|
|
aRv.ThrowNotSupportedError(nsPrintfCString(
|
|
"Cannot attach ElementInternals to a non-custom element '%s'",
|
|
NS_ConvertUTF16toUTF8(nameAtom->GetUTF16String()).get()));
|
|
return nullptr;
|
|
}
|
|
|
|
// 4. If definition's disable internals is true, then throw a
|
|
// "NotSupportedError" DOMException.
|
|
if (definition->mDisableInternals) {
|
|
aRv.ThrowNotSupportedError(nsPrintfCString(
|
|
"AttachInternal() to '%s' is disabled by disabledFeatures",
|
|
NS_ConvertUTF16toUTF8(nameAtom->GetUTF16String()).get()));
|
|
return nullptr;
|
|
}
|
|
|
|
// 5. If element's attached internals is true, then throw an
|
|
// "NotSupportedError" DOMException.
|
|
if (ceData->HasAttachedInternals()) {
|
|
aRv.ThrowNotSupportedError(nsPrintfCString(
|
|
"AttachInternals() has already been called from '%s'",
|
|
NS_ConvertUTF16toUTF8(nameAtom->GetUTF16String()).get()));
|
|
return nullptr;
|
|
}
|
|
|
|
// 6. Set element's attached internals to true.
|
|
ceData->AttachedInternals();
|
|
|
|
// 7. Create a new ElementInternals instance targeting element, and return it.
|
|
return MakeAndAddRef<ElementInternals>(this);
|
|
}
|