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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "HTMLEditHelpers.h"
#include "CSSEditUtils.h"
#include "EditorDOMPoint.h"
#include "HTMLEditor.h"
#include "PendingStyles.h"
#include "WSRunObject.h"
#include "mozilla/ContentIterator.h"
#include "mozilla/OwningNonNull.h"
#include "mozilla/dom/HTMLBRElement.h"
#include "mozilla/dom/Text.h"
#include "nsIContent.h"
#include "nsINode.h"
#include "nsRange.h"
class nsISupports;
namespace mozilla {
using namespace dom;
template void DOMIterator::AppendAllNodesToArray(
nsTArray<OwningNonNull<nsIContent>>& aArrayOfNodes) const;
template void DOMIterator::AppendAllNodesToArray(
nsTArray<OwningNonNull<HTMLBRElement>>& aArrayOfNodes) const;
template void DOMIterator::AppendNodesToArray(
BoolFunctor aFunctor, nsTArray<OwningNonNull<nsIContent>>& aArrayOfNodes,
void* aClosure) const;
template void DOMIterator::AppendNodesToArray(
BoolFunctor aFunctor, nsTArray<OwningNonNull<Element>>& aArrayOfNodes,
void* aClosure) const;
template void DOMIterator::AppendNodesToArray(
BoolFunctor aFunctor, nsTArray<OwningNonNull<Text>>& aArrayOfNodes,
void* aClosure) const;
/******************************************************************************
* some helper classes for iterating the dom tree
*****************************************************************************/
DOMIterator::DOMIterator(nsINode& aNode) : mIter(&mPostOrderIter) {
DebugOnly<nsresult> rv = mIter->Init(&aNode);
MOZ_ASSERT(NS_SUCCEEDED(rv));
}
nsresult DOMIterator::Init(nsRange& aRange) { return mIter->Init(&aRange); }
nsresult DOMIterator::Init(const RawRangeBoundary& aStartRef,
const RawRangeBoundary& aEndRef) {
return mIter->Init(aStartRef, aEndRef);
}
DOMIterator::DOMIterator() : mIter(&mPostOrderIter) {}
template <class NodeClass>
void DOMIterator::AppendAllNodesToArray(
nsTArray<OwningNonNull<NodeClass>>& aArrayOfNodes) const {
for (; !mIter->IsDone(); mIter->Next()) {
if (NodeClass* node = NodeClass::FromNode(mIter->GetCurrentNode())) {
aArrayOfNodes.AppendElement(*node);
}
}
}
template <class NodeClass>
void DOMIterator::AppendNodesToArray(
BoolFunctor aFunctor, nsTArray<OwningNonNull<NodeClass>>& aArrayOfNodes,
void* aClosure /* = nullptr */) const {
for (; !mIter->IsDone(); mIter->Next()) {
NodeClass* node = NodeClass::FromNode(mIter->GetCurrentNode());
if (node && aFunctor(*node, aClosure)) {
aArrayOfNodes.AppendElement(*node);
}
}
}
DOMSubtreeIterator::DOMSubtreeIterator() { mIter = &mSubtreeIter; }
nsresult DOMSubtreeIterator::Init(nsRange& aRange) {
return mIter->Init(&aRange);
}
/******************************************************************************
* mozilla::EditorElementStyle
*****************************************************************************/
bool EditorElementStyle::IsCSSSettable(const nsStaticAtom& aTagName) const {
return CSSEditUtils::IsCSSEditableStyle(aTagName, *this);
}
bool EditorElementStyle::IsCSSSettable(const Element& aElement) const {
return CSSEditUtils::IsCSSEditableStyle(aElement, *this);
}
bool EditorElementStyle::IsCSSRemovable(const nsStaticAtom& aTagName) const {
// <font size> cannot be applied with CSS font-size for now, but it should be
// removable.
return EditorElementStyle::IsCSSSettable(aTagName) ||
(IsInlineStyle() && AsInlineStyle().IsStyleOfFontSize());
}
bool EditorElementStyle::IsCSSRemovable(const Element& aElement) const {
// <font size> cannot be applied with CSS font-size for now, but it should be
// removable.
return EditorElementStyle::IsCSSSettable(aElement) ||
(IsInlineStyle() && AsInlineStyle().IsStyleOfFontSize());
}
/******************************************************************************
* mozilla::EditorInlineStyle
*****************************************************************************/
PendingStyleCache EditorInlineStyle::ToPendingStyleCache(
nsAString&& aValue) const {
return PendingStyleCache(*mHTMLProperty,
mAttribute ? mAttribute->AsStatic() : nullptr,
std::move(aValue));
}
bool EditorInlineStyle::IsRepresentedBy(const nsIContent& aContent) const {
MOZ_ASSERT(!IsStyleToClearAllInlineStyles());
if (!aContent.IsHTMLElement()) {
return false;
}
const Element& element = *aContent.AsElement();
if (mHTMLProperty == element.NodeInfo()->NameAtom() ||
mHTMLProperty == GetSimilarElementNameAtom()) {
// <a> cannot be nested. Therefore, if we're the style of <a>, we should
// treat existing it even if the attribute does not match.
if (mHTMLProperty == nsGkAtoms::a) {
return true;
}
return !mAttribute || element.HasAttr(mAttribute);
}
// Special case for linking or naming an <a> element.
if ((mHTMLProperty == nsGkAtoms::href && HTMLEditUtils::IsLink(&element)) ||
(mHTMLProperty == nsGkAtoms::name &&
HTMLEditUtils::IsNamedAnchor(&element))) {
return true;
}
// If the style is font size, it's also represented by <big> or <small>.
if (mHTMLProperty == nsGkAtoms::font && mAttribute == nsGkAtoms::size &&
aContent.IsAnyOfHTMLElements(nsGkAtoms::big, nsGkAtoms::small)) {
return true;
}
return false;
}
Result<bool, nsresult> EditorInlineStyle::IsSpecifiedBy(
const HTMLEditor& aHTMLEditor, Element& aElement) const {
MOZ_ASSERT(!IsStyleToClearAllInlineStyles());
if (!IsCSSSettable(aElement) && !IsCSSRemovable(aElement)) {
return false;
}
// Special case in the CSS mode. We should treat <u>, <s>, <strike>, <ins>
// and <del> specifies text-decoration (bug 1802668).
if (aHTMLEditor.IsCSSEnabled() &&
IsStyleOfTextDecoration(IgnoreSElement::No) &&
aElement.IsAnyOfHTMLElements(nsGkAtoms::u, nsGkAtoms::s,
nsGkAtoms::strike, nsGkAtoms::ins,
nsGkAtoms::del)) {
return true;
}
return CSSEditUtils::HaveSpecifiedCSSEquivalentStyles(aHTMLEditor, aElement,
*this);
}
} // namespace mozilla
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