Start splitting RenderParagraph logic out of RenderBlock

sky/engine/core/rendering/RenderParagraph.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sky/engine/config.h"
 #include "sky/engine/core/rendering/RenderParagraph.h"
 
+#include "sky/engine/core/rendering/InlineIterator.h"
+
 namespace blink {
 
 RenderParagraph::RenderParagraph(ContainerNode* node)
     : RenderBlockFlow(node)
 {
 }
 
 RenderParagraph::~RenderParagraph()
 {
 }
 
 RenderParagraph* RenderParagraph::createAnonymous(Document& document)
 {
     RenderParagraph* renderer = new RenderParagraph(0);
     renderer->setDocumentForAnonymous(&document);
     return renderer;
 }
 
+void RenderParagraph::addOverflowFromChildren()
+{
+    LayoutUnit endPadding = hasOverflowClip() ? paddingEnd() : LayoutUnit();
+    // FIXME: Need to find another way to do this, since scrollbars could show when we don't want them to.
+    if (hasOverflowClip() && !endPadding && node() && node()->isRootEditableElement() && style()->isLeftToRightDirection())
+        endPadding = 1;
+    for (RootInlineBox* curr = firstRootBox(); curr; curr = curr->nextRootBox()) {
+        addLayoutOverflow(curr->paddedLayoutOverflowRect(endPadding));
+        LayoutRect visualOverflow = curr->visualOverflowRect(curr->lineTop(), curr->lineBottom());
+        addContentsVisualOverflow(visualOverflow);
+    }
+}
+
+void RenderParagraph::simplifiedNormalFlowLayout()
+{
+      ListHashSet<RootInlineBox*> lineBoxes;
+      for (InlineWalker walker(this); !walker.atEnd(); walker.advance()) {
+          RenderObject* o = walker.current();
+          if (!o->isOutOfFlowPositioned() && o->isReplaced()) {
+              o->layoutIfNeeded();
+              if (toRenderBox(o)->inlineBoxWrapper()) {
+                  RootInlineBox& box = toRenderBox(o)->inlineBoxWrapper()->root();
+                  lineBoxes.add(&box);
+              }
+          } else if (o->isText() || (o->isRenderInline() && !walker.atEndOfInline())) {
+              o->clearNeedsLayout();
+          }
+      }
+
+      // FIXME: Glyph overflow will get lost in this case, but not really a big deal.
+      GlyphOverflowAndFallbackFontsMap textBoxDataMap;
+      for (ListHashSet<RootInlineBox*>::const_iterator it = lineBoxes.begin(); it != lineBoxes.end(); ++it) {
+          RootInlineBox* box = *it;
+          box->computeOverflow(box->lineTop(), box->lineBottom(), textBoxDataMap);
+      }
+}
+
+void RenderParagraph::paintContents(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
+{
+    m_lineBoxes.paint(this, paintInfo, paintOffset);
+}
+
+bool RenderParagraph::hitTestContents(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction)
+{
+    return m_lineBoxes.hitTest(this, request, result, locationInContainer, accumulatedOffset, hitTestAction);
+}
+
+
 } // namespace blink