Navigation transitions (web to native app): Get names and rects of transition elements (Step 2)

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 42 matching lines @@
 #include "core/css/StyleSheetContents.h"
 #include "core/css/StyleSheetList.h"
 #include "core/css/invalidation/StyleInvalidator.h"
 #include "core/css/parser/CSSParser.h"
 #include "core/css/resolver/FontBuilder.h"
 #include "core/css/resolver/StyleResolver.h"
 #include "core/css/resolver/StyleResolverStats.h"
 #include "core/dom/AddConsoleMessageTask.h"
 #include "core/dom/Attr.h"
 #include "core/dom/CDATASection.h"
+#include "core/dom/ClientRect.h"
 #include "core/dom/Comment.h"
 #include "core/dom/ContextFeatures.h"
 #include "core/dom/DOMImplementation.h"
 #include "core/dom/DocumentFragment.h"
 #include "core/dom/DocumentLifecycleNotifier.h"
 #include "core/dom/DocumentLifecycleObserver.h"
 #include "core/dom/DocumentMarkerController.h"
 #include "core/dom/DocumentType.h"
 #include "core/dom/Element.h"
 #include "core/dom/ElementDataCache.h"
@@ skipping 5536 matching lines @@
         TrackExceptionState exceptionState;
         AtomicString selector(metaElementContents.substring(0, firstSemicolon));
         RefPtrWillBeRawPtr<StaticElementList> elementList = querySelectorAll(selector, exceptionState);
         if (!elementList || exceptionState.hadException())
             continue;
 
         unsigned nodeListLength = elementList->length();
         if (!nodeListLength)
             continue;
 
+        TransitionElementData newElements;
         StringBuilder markup;
         for (unsigned nodeIndex = 0; nodeIndex < nodeListLength; ++nodeIndex) {
             Element* element = elementList->item(nodeIndex);
             markup.append(createStyledMarkupForNavigationTransition(element));
+            newElements.rects.append(element->boundsInRootViewSpace());
+            newElements.names.append(element->getIdAttribute().string());

[esprehn, 2014/10/24 21:59:11]

Using querySelector doesn't mean that these have ids. I don't understand what
you're saying. I can querySelector for a thing like "div + div", and select an
element with no attributes at all. I can similarly select .foo and get something
with class names and no ids. This can't work.

[Zhen Wang, 2014/10/27 14:14:45]

Checking if the element has ID now. Using empty string if it does not have ID.

         }
 
-        TransitionElementData newElements;
         newElements.scope = metaElementContents.substring(firstSemicolon + 1).stripWhiteSpace();
         newElements.selector = selector;
         newElements.markup = markup.toString();
         elementData.append(newElements);
     }
 }
 
 void Document::hideTransitionElements(const AtomicString& cssSelector)
 {
     TrackExceptionState exceptionState;
@@ skipping 187 matching lines @@
 #ifndef NDEBUG
 using namespace blink;
 void showLiveDocumentInstances()
 {
     WeakDocumentSet& set = liveDocumentSet();
     fprintf(stderr, "There are %u documents currently alive:\n", set.size());
     for (Document* document : set)
         fprintf(stderr, "- Document %p URL: %s\n", document, document->url().string().utf8().data());
 }
 #endif