1 files changed, 22 insertions, 39 deletions

diff --git a/Source/WebCore/html/HTMLTitleElement.cpp b/Source/WebCore/html/HTMLTitleElement.cpp
index a62d9a37a..81ba8deef 100644
--- a/Source/WebCore/html/HTMLTitleElement.cpp
+++ b/Source/WebCore/html/HTMLTitleElement.cpp
@@ -25,8 +25,11 @@
 
 #include "Document.h"
 #include "HTMLNames.h"
+#include "NodeRenderStyle.h"
+#include "RenderElement.h"
 #include "RenderStyle.h"
 #include "StyleInheritedData.h"
+#include "StyleResolver.h"
 #include "Text.h"
 #include "TextNodeTraversal.h"
 #include <wtf/Ref.h>
@@ -42,74 +45,54 @@ inline HTMLTitleElement::HTMLTitleElement(const QualifiedName& tagName, Document
     ASSERT(hasTagName(titleTag));
 }
 
-PassRefPtr<HTMLTitleElement> HTMLTitleElement::create(const QualifiedName& tagName, Document& document)
+Ref<HTMLTitleElement> HTMLTitleElement::create(const QualifiedName& tagName, Document& document)
 {
-    return adoptRef(new HTMLTitleElement(tagName, document));
+    return adoptRef(*new HTMLTitleElement(tagName, document));
 }
 
 Node::InsertionNotificationRequest HTMLTitleElement::insertedInto(ContainerNode& insertionPoint)
 {
     HTMLElement::insertedInto(insertionPoint);
-    if (inDocument() && !isInShadowTree())
-        document().setTitleElement(m_title, this);
+    if (isConnected() && !isInShadowTree())
+        document().titleElementAdded(*this);
     return InsertionDone;
 }
 
 void HTMLTitleElement::removedFrom(ContainerNode& insertionPoint)
 {
     HTMLElement::removedFrom(insertionPoint);
-    if (insertionPoint.inDocument() && !insertionPoint.isInShadowTree())
-        document().removeTitle(this);
+    if (insertionPoint.isConnected() && !insertionPoint.isInShadowTree())
+        document().titleElementRemoved(*this);
 }
 
 void HTMLTitleElement::childrenChanged(const ChildChange& change)
 {
     HTMLElement::childrenChanged(change);
-    m_title = textWithDirection();
-    if (inDocument()) {
-        if (!isInShadowTree())
-            document().setTitleElement(m_title, this);
-        else
-            document().removeTitle(this);
-    }
+    m_title = computedTextWithDirection();
+    document().titleElementTextChanged(*this);
 }
 
 String HTMLTitleElement::text() const
 {
-    return TextNodeTraversal::contentsAsString(this);
+    StringBuilder result;
+    for (Text* text = TextNodeTraversal::firstChild(*this); text; text = TextNodeTraversal::nextSibling(*text))
+        result.append(text->data());
+    return result.toString();
 }
 
-StringWithDirection HTMLTitleElement::textWithDirection()
+StringWithDirection HTMLTitleElement::computedTextWithDirection()
 {
     TextDirection direction = LTR;
-    if (RenderStyle* computedStyle = this->computedStyle())
+    if (auto* computedStyle = this->computedStyle())
         direction = computedStyle->direction();
-    else {
-        Ref<RenderStyle> style(styleForRenderer());
-        direction = style.get().direction();
-    }
-    return StringWithDirection(text(), direction);
+    else
+        direction = styleResolver().styleForElement(*this, parentElement() ? parentElement()->renderStyle() : nullptr).renderStyle->direction();
+    return { text(), direction };
 }
 
-void HTMLTitleElement::setText(const String &value)
+void HTMLTitleElement::setText(const String& value)
 {
-    Ref<HTMLTitleElement> protectFromMutationEvents(*this);
-
-    int numChildren = childNodeCount();
-    
-    if (numChildren == 1 && firstChild()->isTextNode())
-        toText(firstChild())->setData(value, IGNORE_EXCEPTION);
-    else {
-        // We make a copy here because entity of "value" argument can be Document::m_title,
-        // which goes empty during removeChildren() invocation below,
-        // which causes HTMLTitleElement::childrenChanged(), which ends up Document::setTitle().
-        String valueCopy(value);
-
-        if (numChildren > 0)
-            removeChildren();
-
-        appendChild(document().createTextNode(valueCopy.impl()), IGNORE_EXCEPTION);
-    }
+    setTextContent(value);
 }
 
 }