зеркало из https://github.com/mozilla/pjs.git
Bug 722412 - Cleanup nsPlaintextEditor::SetDocumentCharacterSet; r=ehsan
This commit is contained in:
Ms2ger
Родитель
1415cbeb8e
Коммит
51cc2598c8
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@ -229,97 +229,110 @@ nsPlaintextEditor::EndEditorInit()
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return res;
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}
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NS_IMETHODIMP
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nsPlaintextEditor::SetDocumentCharacterSet(const nsACString & characterSet)
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{
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nsresult result;
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NS_IMETHODIMP
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nsPlaintextEditor::SetDocumentCharacterSet(const nsACString& characterSet)
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{
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nsresult rv = nsEditor::SetDocumentCharacterSet(characterSet);
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NS_ENSURE_SUCCESS(rv, rv);
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result = nsEditor::SetDocumentCharacterSet(characterSet);
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// Update META charset element.
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nsCOMPtr<nsIDOMDocument> domdoc;
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rv = GetDocument(getter_AddRefs(domdoc));
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NS_ENSURE_SUCCESS(rv, rv);
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NS_ENSURE_TRUE(domdoc, NS_ERROR_FAILURE);
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// update META charset tag
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if (NS_SUCCEEDED(result)) {
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nsCOMPtr<nsIDOMDocument>domdoc;
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result = GetDocument(getter_AddRefs(domdoc));
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if (NS_SUCCEEDED(result) && domdoc) {
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nsCOMPtr<nsIDOMNodeList>metaList;
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nsCOMPtr<nsIDOMElement>metaElement;
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bool newMetaCharset = true;
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if (UpdateMetaCharset(domdoc, characterSet)) {
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return NS_OK;
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}
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// get a list of META tags
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result = domdoc->GetElementsByTagName(NS_LITERAL_STRING("meta"), getter_AddRefs(metaList));
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if (NS_SUCCEEDED(result) && metaList) {
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PRUint32 listLength = 0;
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(void) metaList->GetLength(&listLength);
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nsCOMPtr<nsIDOMNodeList> headList;
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rv = domdoc->GetElementsByTagName(NS_LITERAL_STRING("head"), getter_AddRefs(headList));
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NS_ENSURE_SUCCESS(rv, rv);
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NS_ENSURE_TRUE(headList, NS_OK);
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nsCOMPtr<nsIDOMNode>metaNode;
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for (PRUint32 i = 0; i < listLength; i++) {
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metaList->Item(i, getter_AddRefs(metaNode));
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if (!metaNode) continue;
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metaElement = do_QueryInterface(metaNode);
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if (!metaElement) continue;
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nsCOMPtr<nsIDOMNode> headNode;
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headList->Item(0, getter_AddRefs(headNode));
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NS_ENSURE_TRUE(headNode, NS_OK);
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nsAutoString currentValue;
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if (NS_FAILED(metaElement->GetAttribute(NS_LITERAL_STRING("http-equiv"), currentValue))) continue;
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// Create a new meta charset tag
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nsCOMPtr<nsIDOMNode> resultNode;
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rv = CreateNode(NS_LITERAL_STRING("meta"), headNode, 0, getter_AddRefs(resultNode));
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NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
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NS_ENSURE_TRUE(resultNode, NS_OK);
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if (FindInReadable(NS_LITERAL_STRING("content-type"),
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currentValue,
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nsCaseInsensitiveStringComparator())) {
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NS_NAMED_LITERAL_STRING(content, "content");
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if (NS_FAILED(metaElement->GetAttribute(content, currentValue))) continue;
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// Set attributes to the created element
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if (characterSet.IsEmpty()) {
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return NS_OK;
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}
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NS_NAMED_LITERAL_STRING(charsetEquals, "charset=");
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nsAString::const_iterator originalStart, start, end;
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originalStart = currentValue.BeginReading(start);
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currentValue.EndReading(end);
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if (FindInReadable(charsetEquals, start, end,
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nsCaseInsensitiveStringComparator())) {
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nsCOMPtr<dom::Element> metaElement = do_QueryInterface(resultNode);
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if (!metaElement) {
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return NS_OK;
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}
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// set attribute to <original prefix> charset=text/html
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result = nsEditor::SetAttribute(metaElement, content,
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Substring(originalStart, start) +
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charsetEquals + NS_ConvertASCIItoUTF16(characterSet));
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if (NS_SUCCEEDED(result))
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newMetaCharset = false;
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break;
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}
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}
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}
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}
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// not undoable, undo should undo CreateNode
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metaElement->SetAttr(kNameSpaceID_None, nsGkAtoms::httpEquiv,
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NS_LITERAL_STRING("Content-Type"), true);
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metaElement->SetAttr(kNameSpaceID_None, nsGkAtoms::content,
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NS_LITERAL_STRING("text/html;charset=") +
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NS_ConvertASCIItoUTF16(characterSet),
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true);
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return NS_OK;
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}
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if (newMetaCharset) {
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nsCOMPtr<nsIDOMNodeList>headList;
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result = domdoc->GetElementsByTagName(NS_LITERAL_STRING("head"),getter_AddRefs(headList));
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if (NS_SUCCEEDED(result) && headList) {
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nsCOMPtr<nsIDOMNode>headNode;
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headList->Item(0, getter_AddRefs(headNode));
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if (headNode) {
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nsCOMPtr<nsIDOMNode>resultNode;
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// Create a new meta charset tag
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result = CreateNode(NS_LITERAL_STRING("meta"), headNode, 0, getter_AddRefs(resultNode));
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NS_ENSURE_SUCCESS(result, NS_ERROR_FAILURE);
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bool
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nsPlaintextEditor::UpdateMetaCharset(nsIDOMDocument* aDocument,
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const nsACString& aCharacterSet)
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{
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// get a list of META tags
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nsCOMPtr<nsIDOMNodeList> metaList;
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nsresult rv = aDocument->GetElementsByTagName(NS_LITERAL_STRING("meta"),
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getter_AddRefs(metaList));
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NS_ENSURE_SUCCESS(rv, false);
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NS_ENSURE_TRUE(metaList, false);
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// Set attributes to the created element
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if (resultNode && !characterSet.IsEmpty()) {
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metaElement = do_QueryInterface(resultNode);
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if (metaElement) {
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// not undoable, undo should undo CreateNode
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result = metaElement->SetAttribute(NS_LITERAL_STRING("http-equiv"), NS_LITERAL_STRING("Content-Type"));
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if (NS_SUCCEEDED(result)) {
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// not undoable, undo should undo CreateNode
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result = metaElement->SetAttribute(NS_LITERAL_STRING("content"),
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NS_LITERAL_STRING("text/html;charset=") + NS_ConvertASCIItoUTF16(characterSet));
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}
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}
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}
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}
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}
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}
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}
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}
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PRUint32 listLength = 0;
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metaList->GetLength(&listLength);
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return result;
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}
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for (PRUint32 i = 0; i < listLength; ++i) {
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nsCOMPtr<nsIContent> metaNode = metaList->GetNodeAt(i);
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MOZ_ASSERT(metaNode);
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if (!metaNode->IsElement()) {
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continue;
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}
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nsAutoString currentValue;
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metaNode->GetAttr(kNameSpaceID_None, nsGkAtoms::httpEquiv, currentValue);
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if (!FindInReadable(NS_LITERAL_STRING("content-type"),
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currentValue,
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nsCaseInsensitiveStringComparator())) {
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continue;
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}
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metaNode->GetAttr(kNameSpaceID_None, nsGkAtoms::content, currentValue);
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NS_NAMED_LITERAL_STRING(charsetEquals, "charset=");
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nsAString::const_iterator originalStart, start, end;
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originalStart = currentValue.BeginReading(start);
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currentValue.EndReading(end);
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if (!FindInReadable(charsetEquals, start, end,
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nsCaseInsensitiveStringComparator())) {
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continue;
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}
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// set attribute to <original prefix> charset=text/html
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nsCOMPtr<nsIDOMElement> metaElement = do_QueryInterface(metaNode);
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MOZ_ASSERT(metaElement);
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rv = nsEditor::SetAttribute(metaElement, NS_LITERAL_STRING("content"),
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Substring(originalStart, start) +
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charsetEquals +
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NS_ConvertASCIItoUTF16(aCharacterSet));
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return NS_SUCCEEDED(rv);
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}
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return false;
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}
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NS_IMETHODIMP nsPlaintextEditor::InitRules()
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{
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@ -221,6 +221,9 @@ protected:
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bool CanCutOrCopy();
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bool FireClipboardEvent(PRInt32 aType);
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bool UpdateMetaCharset(nsIDOMDocument* aDocument,
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const nsACString& aCharacterSet);
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// Data members
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protected:
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