Minor refactoring to avoid redundant calls to RenderObject::style()

Source/core/rendering/RenderTextControl.cpp

 /**
  * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
  *           (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 236 matching lines @@
     if (!style()->logicalWidth().isPercent())
         minLogicalWidth = maxLogicalWidth;
 }
 
 void RenderTextControl::computePreferredLogicalWidths()
 {
     ASSERT(preferredLogicalWidthsDirty());
 
     m_minPreferredLogicalWidth = 0;
     m_maxPreferredLogicalWidth = 0;
+    RenderStyle* styleToUse = style();
 
-    if (style()->logicalWidth().isFixed() && style()->logicalWidth().value() >= 0)
-        m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = adjustContentBoxLogicalWidthForBoxSizing(style()->logicalWidth().value());
+    if (styleToUse->logicalWidth().isFixed() && styleToUse->logicalWidth().value() >= 0)
+        m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = adjustContentBoxLogicalWidthForBoxSizing(styleToUse->logicalWidth().value());
     else
         computeIntrinsicLogicalWidths(m_minPreferredLogicalWidth, m_maxPreferredLogicalWidth);
 
-    if (style()->logicalMinWidth().isFixed() && style()->logicalMinWidth().value() > 0) {
-        m_maxPreferredLogicalWidth = max(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->logicalMinWidth().value()));
-        m_minPreferredLogicalWidth = max(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->logicalMinWidth().value()));
+    if (styleToUse->logicalMinWidth().isFixed() && styleToUse->logicalMinWidth().value() > 0) {
+        m_maxPreferredLogicalWidth = max(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->logicalMinWidth().value()));
+        m_minPreferredLogicalWidth = max(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->logicalMinWidth().value()));
     }
 
-    if (style()->logicalMaxWidth().isFixed()) {
-        m_maxPreferredLogicalWidth = min(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->logicalMaxWidth().value()));
-        m_minPreferredLogicalWidth = min(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->logicalMaxWidth().value()));
+    if (styleToUse->logicalMaxWidth().isFixed()) {
+        m_maxPreferredLogicalWidth = min(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->logicalMaxWidth().value()));
+        m_minPreferredLogicalWidth = min(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->logicalMaxWidth().value()));
     }
 
     LayoutUnit toAdd = borderAndPaddingLogicalWidth();
 
     m_minPreferredLogicalWidth += toAdd;
     m_maxPreferredLogicalWidth += toAdd;
 
     clearPreferredLogicalWidthsDirty();
 }
 
 void RenderTextControl::addFocusRingRects(Vector<IntRect>& rects, const LayoutPoint& additionalOffset, const RenderLayerModelObject*)
 {
     if (!size().isEmpty())
         rects.append(pixelSnappedIntRect(additionalOffset, size()));
 }
 
 RenderObject* RenderTextControl::layoutSpecialExcludedChild(bool relayoutChildren, SubtreeLayoutScope& layoutScope)
 {
     HTMLElement* placeholder = toHTMLTextFormControlElement(node())->placeholderElement();
     RenderObject* placeholderRenderer = placeholder ? placeholder->renderer() : 0;
     if (!placeholderRenderer)
         return 0;
     if (relayoutChildren)
         layoutScope.setChildNeedsLayout(placeholderRenderer);
     return placeholderRenderer;
 }
 
 } // namespace WebCore