Navigation transitions: Added createStyledMarkupForNavigationTransition

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 70 matching lines @@
 #include "core/dom/NodeRenderStyle.h"
 #include "core/dom/NodeRenderingTraversal.h"
 #include "core/dom/NodeTraversal.h"
 #include "core/dom/NodeWithIndex.h"
 #include "core/dom/ProcessingInstruction.h"
 #include "core/dom/RequestAnimationFrameCallback.h"
 #include "core/dom/ScriptForbiddenScope.h"
 #include "core/dom/ScriptRunner.h"
 #include "core/dom/ScriptedAnimationController.h"
 #include "core/dom/SelectorQuery.h"
+#include "core/dom/StaticNodeList.h"
 #include "core/dom/StyleEngine.h"
 #include "core/dom/TouchList.h"
 #include "core/dom/TransformSource.h"
 #include "core/dom/TreeWalker.h"
 #include "core/dom/VisitedLinkState.h"
 #include "core/dom/XMLDocument.h"
 #include "core/dom/custom/CustomElementRegistrationContext.h"
 #include "core/dom/shadow/ElementShadow.h"
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/editing/Editor.h"
 #include "core/editing/FrameSelection.h"
 #include "core/editing/SpellChecker.h"
+#include "core/editing/markup.h"
 #include "core/events/BeforeUnloadEvent.h"
 #include "core/events/Event.h"
 #include "core/events/EventFactory.h"
 #include "core/events/EventListener.h"
 #include "core/events/HashChangeEvent.h"
 #include "core/events/PageTransitionEvent.h"
 #include "core/events/ScopedEventQueue.h"
 #include "core/fetch/ResourceFetcher.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/FrameConsole.h"
@@ skipping 5576 matching lines @@
     m_taskRunner->postTask(AutofocusTask::create());
 }
 
 Element* Document::activeElement() const
 {
     if (Element* element = treeScope().adjustedFocusedElement())
         return element;
     return body();
 }
 
+void Document::getTransitionElementData(Vector<TransitionElementData>& elementData, ExceptionState& exceptionState)
+{
+    if (!head())
+        return;
+
+    for (HTMLMetaElement* metaElement = Traversal<HTMLMetaElement>::firstChild(*head()); metaElement; metaElement = Traversal<HTMLMetaElement>::nextSibling(*metaElement)) {
+        if (metaElement->name() != "transition-elements")
+            continue;
+
+        Vector<String> tokens;

[esprehn, 2014/07/14 22:04:31]

Dead code?

[oystein (OOO til 10th of July), 2014/07/14 22:44:57]

Done.

+        const String& metaElementContents = metaElement->content().string();
+        size_t firstSemicolon = metaElementContents.find(';');
+        if (firstSemicolon == kNotFound)
+            continue;
+
+        AtomicString selector(metaElementContents.substring(0, firstSemicolon));
+        RefPtr<StaticNodeList> nodeList = querySelectorAll(selector, exceptionState);
+        if (!nodeList || exceptionState.hadException())
+            continue;
+
+        unsigned nodeListLength = nodeList->length();
+        if (!nodeListLength)
+            continue;
+
+        StringBuilder markup;
+        for (unsigned nodeIndex = 0; nodeIndex < nodeListLength; ++nodeIndex) {
+            Node* node = nodeList->item(nodeIndex);
+            markup.append(createStyledMarkupForNavigationTransition(node));
+        }
+
+        TransitionElementData newElements;
+        newElements.scope = metaElementContents.substring(firstSemicolon + 1).stripWhiteSpace();

[esprehn, 2014/07/14 22:04:31]

What happens if there's nothing after the ;, isn't this out of bounds?

[oystein (OOO til 10th of July), 2014/07/14 22:44:57]

StringImpl::substring does a bounds check and returns an empty() string if OOB.

+        newElements.selector = selector;
+        newElements.markup = markup.toString();
+        elementData.append(newElements);
+    }
+}
+
 bool Document::hasFocus() const
 {
     Page* page = this->page();
     if (!page)
         return false;
     if (!page->focusController().isActive() || !page->focusController().isFocused())
         return false;
     Frame* focusedFrame = page->focusController().focusedFrame();
     if (focusedFrame && focusedFrame->isLocalFrame()) {
         if (toLocalFrame(focusedFrame)->tree().isDescendantOf(frame()))
@@ skipping 126 matching lines @@
     visitor->trace(m_compositorPendingAnimations);
     visitor->trace(m_contextDocument);
     visitor->registerWeakMembers<Document, &Document::clearWeakMembers>(this);
     DocumentSupplementable::trace(visitor);
     TreeScope::trace(visitor);
     ContainerNode::trace(visitor);
     ExecutionContext::trace(visitor);
 }
 
 } // namespace WebCore