зеркало из https://github.com/mozilla/gecko-dev.git
Bug 1156062 part 12 - Clean up nsHTMLEditRules::GetAlignment; r=masayuki
This commit is contained in:
Aryeh Gregor
Родитель
d47825b953
Коммит
b54341c0b9
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@ -798,153 +798,128 @@ nsHTMLEditRules::GetListItemState(bool *aMixed, bool *aLI, bool *aDT, bool *aDD)
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}
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nsresult
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nsHTMLEditRules::GetAlignment(bool *aMixed, nsIHTMLEditor::EAlignment *aAlign)
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nsHTMLEditRules::GetAlignment(bool* aMixed, nsIHTMLEditor::EAlignment* aAlign)
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{
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// for now, just return first alignment. we'll lie about
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// if it's mixed. This is for efficiency
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// given that our current ui doesn't care if it's mixed.
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// cmanske: NOT TRUE! We would like to pay attention to mixed state
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// in Format | Align submenu!
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MOZ_ASSERT(aMixed && aAlign);
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// this routine assumes that alignment is done ONLY via divs
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NS_ENSURE_STATE(mHTMLEditor);
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nsCOMPtr<nsIEditor> kungFuDeathGrip(mHTMLEditor);
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// default alignment is left
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NS_ENSURE_TRUE(aMixed && aAlign, NS_ERROR_NULL_POINTER);
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// For now, just return first alignment. We'll lie about if it's mixed.
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// This is for efficiency given that our current ui doesn't care if it's
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// mixed.
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// cmanske: NOT TRUE! We would like to pay attention to mixed state in Format
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// | Align submenu!
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// This routine assumes that alignment is done ONLY via divs
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// Default alignment is left
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*aMixed = false;
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*aAlign = nsIHTMLEditor::eLeft;
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// get selection
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NS_ENSURE_STATE(mHTMLEditor);
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RefPtr<Selection> selection = mHTMLEditor->GetSelection();
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NS_ENSURE_STATE(selection);
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// Get selection
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NS_ENSURE_STATE(mHTMLEditor->GetSelection());
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OwningNonNull<Selection> selection = *mHTMLEditor->GetSelection();
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// get selection location
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NS_ENSURE_STATE(mHTMLEditor);
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nsCOMPtr<Element> rootElem = mHTMLEditor->GetRoot();
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NS_ENSURE_TRUE(rootElem, NS_ERROR_FAILURE);
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// Get selection location
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NS_ENSURE_TRUE(mHTMLEditor->GetRoot(), NS_ERROR_FAILURE);
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OwningNonNull<Element> root = *mHTMLEditor->GetRoot();
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int32_t offset, rootOffset;
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nsCOMPtr<nsINode> parent = nsEditor::GetNodeLocation(rootElem, &rootOffset);
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NS_ENSURE_STATE(mHTMLEditor);
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nsresult res = mHTMLEditor->GetStartNodeAndOffset(selection,
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getter_AddRefs(parent),
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&offset);
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NS_ENSURE_SUCCESS(res, res);
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int32_t rootOffset = root->GetParentNode() ?
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root->GetParentNode()->IndexOf(root) : -1;
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// is the selection collapsed?
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NS_ENSURE_STATE(selection->GetRangeAt(0) &&
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selection->GetRangeAt(0)->GetStartParent());
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OwningNonNull<nsINode> parent = *selection->GetRangeAt(0)->GetStartParent();
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int32_t offset = selection->GetRangeAt(0)->StartOffset();
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// Is the selection collapsed?
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nsCOMPtr<nsINode> nodeToExamine;
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if (selection->Collapsed()) {
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// if it is, we want to look at 'parent' and its ancestors
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// for divs with alignment on them
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nodeToExamine = parent;
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}
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else if (!mHTMLEditor) {
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return NS_ERROR_UNEXPECTED;
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}
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else if (mHTMLEditor->IsTextNode(parent))
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{
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// if we are in a text node, then that is the node of interest
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if (selection->Collapsed() || parent->GetAsText()) {
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// If selection is collapsed, we want to look at 'parent' and its ancestors
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// for divs with alignment on them. If we are in a text node, then that is
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// the node of interest.
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nodeToExamine = parent;
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} else if (parent->IsHTMLElement(nsGkAtoms::html) && offset == rootOffset) {
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// if we have selected the body, let's look at the first editable node
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NS_ENSURE_STATE(mHTMLEditor);
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// If we have selected the body, let's look at the first editable node
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nodeToExamine = mHTMLEditor->GetNextNode(parent, offset, true);
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}
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else
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{
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} else {
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nsTArray<RefPtr<nsRange>> arrayOfRanges;
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GetPromotedRanges(*selection, arrayOfRanges, EditAction::align);
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GetPromotedRanges(selection, arrayOfRanges, EditAction::align);
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// use these ranges to construct a list of nodes to act on.
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// Use these ranges to construct a list of nodes to act on.
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nsTArray<OwningNonNull<nsINode>> arrayOfNodes;
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res = GetNodesForOperation(arrayOfRanges, arrayOfNodes,
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EditAction::align, TouchContent::no);
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NS_ENSURE_SUCCESS(res, res);
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nsresult rv = GetNodesForOperation(arrayOfRanges, arrayOfNodes,
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EditAction::align, TouchContent::no);
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NS_ENSURE_SUCCESS(rv, rv);
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nodeToExamine = arrayOfNodes.SafeElementAt(0);
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}
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NS_ENSURE_TRUE(nodeToExamine, NS_ERROR_NULL_POINTER);
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NS_NAMED_LITERAL_STRING(typeAttrName, "align");
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nsIAtom *dummyProperty = nullptr;
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NS_ENSURE_STATE(mHTMLEditor);
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nsCOMPtr<Element> blockParent = mHTMLEditor->GetBlock(*nodeToExamine);
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NS_ENSURE_TRUE(blockParent, NS_ERROR_FAILURE);
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NS_ENSURE_STATE(mHTMLEditor);
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if (mHTMLEditor->IsCSSEnabled())
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{
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NS_ENSURE_STATE(mHTMLEditor);
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if (mHTMLEditor->mHTMLCSSUtils->IsCSSEditableProperty(blockParent,
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dummyProperty,
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&typeAttrName)) {
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// we are in CSS mode and we know how to align this element with CSS
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nsAutoString value;
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// let's get the value(s) of text-align or margin-left/margin-right
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NS_ENSURE_STATE(mHTMLEditor);
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mHTMLEditor->mHTMLCSSUtils->GetCSSEquivalentToHTMLInlineStyleSet(
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blockParent, dummyProperty, &typeAttrName, value,
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nsHTMLCSSUtils::eComputed);
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if (value.EqualsLiteral("center") ||
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value.EqualsLiteral("-moz-center") ||
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value.EqualsLiteral("auto auto"))
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{
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*aAlign = nsIHTMLEditor::eCenter;
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return NS_OK;
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}
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if (value.EqualsLiteral("right") ||
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value.EqualsLiteral("-moz-right") ||
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value.EqualsLiteral("auto 0px"))
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{
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*aAlign = nsIHTMLEditor::eRight;
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return NS_OK;
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}
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if (value.EqualsLiteral("justify"))
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{
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*aAlign = nsIHTMLEditor::eJustify;
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return NS_OK;
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}
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*aAlign = nsIHTMLEditor::eLeft;
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if (mHTMLEditor->IsCSSEnabled() &&
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mHTMLEditor->mHTMLCSSUtils->IsCSSEditableProperty(blockParent, nullptr,
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&typeAttrName)) {
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// We are in CSS mode and we know how to align this element with CSS
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nsAutoString value;
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// Let's get the value(s) of text-align or margin-left/margin-right
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mHTMLEditor->mHTMLCSSUtils->GetCSSEquivalentToHTMLInlineStyleSet(
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blockParent, nullptr, &typeAttrName, value, nsHTMLCSSUtils::eComputed);
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if (value.EqualsLiteral("center") ||
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value.EqualsLiteral("-moz-center") ||
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value.EqualsLiteral("auto auto")) {
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*aAlign = nsIHTMLEditor::eCenter;
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return NS_OK;
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}
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if (value.EqualsLiteral("right") ||
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value.EqualsLiteral("-moz-right") ||
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value.EqualsLiteral("auto 0px")) {
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*aAlign = nsIHTMLEditor::eRight;
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return NS_OK;
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}
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if (value.EqualsLiteral("justify")) {
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*aAlign = nsIHTMLEditor::eJustify;
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return NS_OK;
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}
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*aAlign = nsIHTMLEditor::eLeft;
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return NS_OK;
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}
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// check up the ladder for divs with alignment
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// Check up the ladder for divs with alignment
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bool isFirstNodeToExamine = true;
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while (nodeToExamine)
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{
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if (!isFirstNodeToExamine && nsHTMLEditUtils::IsTable(nodeToExamine))
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{
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// the node to examine is a table and this is not the first node
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// we examine; let's break here to materialize the 'inline-block'
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// behaviour of html tables regarding to text alignment
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for (; nodeToExamine; nodeToExamine = nodeToExamine->GetParentNode()) {
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if (!isFirstNodeToExamine &&
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nodeToExamine->IsHTMLElement(nsGkAtoms::table)) {
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// The node to examine is a table and this is not the first node we
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// examine; let's break here to materialize the 'inline-block' behaviour
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// of html tables regarding to text alignment
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return NS_OK;
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}
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if (nsHTMLEditUtils::SupportsAlignAttr(GetAsDOMNode(nodeToExamine))) {
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// check for alignment
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nsCOMPtr<nsIDOMElement> elem = do_QueryInterface(nodeToExamine);
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if (elem)
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{
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nsAutoString typeAttrVal;
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res = elem->GetAttribute(NS_LITERAL_STRING("align"), typeAttrVal);
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ToLowerCase(typeAttrVal);
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if (NS_SUCCEEDED(res) && typeAttrVal.Length())
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{
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if (typeAttrVal.EqualsLiteral("center"))
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*aAlign = nsIHTMLEditor::eCenter;
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else if (typeAttrVal.EqualsLiteral("right"))
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*aAlign = nsIHTMLEditor::eRight;
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else if (typeAttrVal.EqualsLiteral("justify"))
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*aAlign = nsIHTMLEditor::eJustify;
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else
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*aAlign = nsIHTMLEditor::eLeft;
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return res;
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// Check for alignment
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nsAutoString typeAttrVal;
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nodeToExamine->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::align,
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typeAttrVal);
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ToLowerCase(typeAttrVal);
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if (!typeAttrVal.IsEmpty()) {
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if (typeAttrVal.EqualsLiteral("center")) {
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*aAlign = nsIHTMLEditor::eCenter;
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} else if (typeAttrVal.EqualsLiteral("right")) {
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*aAlign = nsIHTMLEditor::eRight;
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} else if (typeAttrVal.EqualsLiteral("justify")) {
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*aAlign = nsIHTMLEditor::eJustify;
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} else {
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*aAlign = nsIHTMLEditor::eLeft;
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}
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return NS_OK;
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}
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}
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isFirstNodeToExamine = false;
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nodeToExamine = nodeToExamine->GetParentNode();
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}
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return NS_OK;
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}
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