Move hasRenderedNonAnonymousDescendantsWithHeight() to VisibleUnits.cpp from Position.cpp

Source/core/editing/VisibleUnits.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 30 matching lines @@
 #include "core/editing/TextAffinity.h"
 #include "core/editing/VisiblePosition.h"
 #include "core/editing/iterators/BackwardsCharacterIterator.h"
 #include "core/editing/iterators/CharacterIterator.h"
 #include "core/editing/iterators/SimplifiedBackwardsTextIterator.h"
 #include "core/editing/iterators/TextIterator.h"
 #include "core/html/HTMLBRElement.h"
 #include "core/layout/HitTestRequest.h"
 #include "core/layout/HitTestResult.h"
 #include "core/layout/LayoutBlockFlow.h"
+#include "core/layout/LayoutInline.h"
 #include "core/layout/LayoutObject.h"
 #include "core/layout/LayoutView.h"
+#include "core/layout/line/InlineIterator.h"
 #include "core/layout/line/InlineTextBox.h"
 #include "core/paint/DeprecatedPaintLayer.h"
 #include "platform/Logging.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/heap/Handle.h"
 #include "platform/text/TextBoundaries.h"
 
 namespace blink {
 
 using namespace HTMLNames;
@@ skipping 1380 matching lines @@
         return LayoutRect();
 
     InlineBoxPosition boxPosition = position.position().computeInlineBoxPosition(position.affinity());
 
     if (boxPosition.inlineBox)
         layoutObject = &boxPosition.inlineBox->layoutObject();
 
     return layoutObject->localCaretRect(boxPosition.inlineBox, boxPosition.offsetInBox);
 }
 
+static int boundingBoxLogicalHeight(LayoutObject *o, const IntRect &rect)
+{
+    return o->style()->isHorizontalWritingMode() ? rect.height() : rect.width();
+}
+
+bool hasRenderedNonAnonymousDescendantsWithHeight(LayoutObject* layoutObject)
+{
+    LayoutObject* stop = layoutObject->nextInPreOrderAfterChildren();
+    for (LayoutObject *o = layoutObject->slowFirstChild(); o && o != stop; o = o->nextInPreOrder()) {
+        if (o->nonPseudoNode()) {
+            if ((o->isText() && boundingBoxLogicalHeight(o, toLayoutText(o)->linesBoundingBox()))
+                || (o->isBox() && toLayoutBox(o)->pixelSnappedLogicalHeight())
+                || (o->isLayoutInline() && isEmptyInline(LineLayoutItem(o)) && boundingBoxLogicalHeight(o, toLayoutInline(o)->linesBoundingBox())))
+                return true;
+        }
+    }
+    return false;
+}
+
 VisiblePosition visiblePositionForContentsPoint(const IntPoint& contentsPoint, LocalFrame* frame)
 {
     HitTestRequest request = HitTestRequest::Move | HitTestRequest::ReadOnly | HitTestRequest::Active | HitTestRequest::IgnoreClipping;
     HitTestResult result(request, contentsPoint);
     frame->document()->layoutView()->hitTest(result);
 
     if (Node* node = result.innerNode())
         return frame->selection().selection().visiblePositionRespectingEditingBoundary(result.localPoint(), node);
     return VisiblePosition();
 }
@@ skipping 438 matching lines @@
 {
     return mostBackwardCaretPosition<EditingStrategy>(position, rule);
 }
 
 PositionInComposedTree mostBackwardCaretPosition(const PositionInComposedTree& position, EditingBoundaryCrossingRule rule)
 {
     return mostBackwardCaretPosition<EditingInComposedTreeStrategy>(position, rule);
 }
 
 }