[Line Layout API] Add LineLayoutItem::resolveColor()

third_party/WebKit/Source/core/paint/TextPainter.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 "core/paint/TextPainter.h"
 
 #include "core/CSSPropertyNames.h"
 #include "core/frame/Settings.h"
 #include "core/layout/LayoutObject.h"
 #include "core/layout/LayoutTextCombine.h"
+#include "core/layout/api/LineLayoutAPIShim.h"
+#include "core/layout/api/LineLayoutItem.h"
 #include "core/layout/line/InlineTextBox.h"
 #include "core/paint/BoxPainter.h"
 #include "core/paint/PaintInfo.h"
 #include "core/style/ComputedStyle.h"
 #include "core/style/ShadowList.h"
 #include "platform/fonts/Font.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/GraphicsContextStateSaver.h"
 #include "platform/text/TextRun.h"
 #include "wtf/Assertions.h"
@@ skipping 87 matching lines @@
 }
 
 static Color textColorForWhiteBackground(Color textColor)
 {
     int distanceFromWhite = differenceSquared(textColor, Color::white);
     // semi-arbitrarily chose 65025 (255^2) value here after a few tests;
     return distanceFromWhite > 65025 ? textColor : textColor.dark();
 }
 
 // static
-TextPainter::Style TextPainter::textPaintingStyle(const LayoutObject& layoutObject, const ComputedStyle& style, const PaintInfo& paintInfo)
+TextPainter::Style TextPainter::textPaintingStyle(LineLayoutItem lineLayoutItem, const ComputedStyle& style, const PaintInfo& paintInfo)
 {
     TextPainter::Style textStyle;
     bool isPrinting = paintInfo.isPrinting();
 
     if (paintInfo.phase == PaintPhaseTextClip) {
         // When we use the text as a clip, we only care about the alpha, thus we make all the colors black.
         textStyle.currentColor = Color::black;
         textStyle.fillColor = Color::black;
         textStyle.strokeColor = Color::black;
         textStyle.emphasisMarkColor = Color::black;
         textStyle.strokeWidth = style.textStrokeWidth();
         textStyle.shadow = 0;
     } else {
         textStyle.currentColor = style.visitedDependentColor(CSSPropertyColor);
-        textStyle.fillColor = layoutObject.resolveColor(style, CSSPropertyWebkitTextFillColor);
-        textStyle.strokeColor = layoutObject.resolveColor(style, CSSPropertyWebkitTextStrokeColor);
-        textStyle.emphasisMarkColor = layoutObject.resolveColor(style, CSSPropertyWebkitTextEmphasisColor);
+        textStyle.fillColor = lineLayoutItem.resolveColor(style, CSSPropertyWebkitTextFillColor);
+        textStyle.strokeColor = lineLayoutItem.resolveColor(style, CSSPropertyWebkitTextStrokeColor);
+        textStyle.emphasisMarkColor = lineLayoutItem.resolveColor(style, CSSPropertyWebkitTextEmphasisColor);
         textStyle.strokeWidth = style.textStrokeWidth();
         textStyle.shadow = style.textShadow();
 
         // Adjust text color when printing with a white background.
-        ASSERT(layoutObject.document().printing() == isPrinting);
-        bool forceBackgroundToWhite = BoxPainter::shouldForceWhiteBackgroundForPrintEconomy(style, layoutObject.document());
+        ASSERT(lineLayoutItem.document().printing() == isPrinting);
+        bool forceBackgroundToWhite = BoxPainter::shouldForceWhiteBackgroundForPrintEconomy(style, lineLayoutItem.document());
         if (forceBackgroundToWhite) {
             textStyle.fillColor = textColorForWhiteBackground(textStyle.fillColor);
             textStyle.strokeColor = textColorForWhiteBackground(textStyle.strokeColor);
             textStyle.emphasisMarkColor = textColorForWhiteBackground(textStyle.emphasisMarkColor);
         }
 
         // Text shadows are disabled when printing. http://crbug.com/258321
         if (isPrinting)
             textStyle.shadow = 0;
     }
 
     return textStyle;
 }
 
-TextPainter::Style TextPainter::selectionPaintingStyle(const LayoutObject& layoutObject, bool haveSelection, const PaintInfo& paintInfo, const TextPainter::Style& textStyle)
+TextPainter::Style TextPainter::selectionPaintingStyle(LineLayoutItem lineLayoutItem, bool haveSelection, const PaintInfo& paintInfo, const TextPainter::Style& textStyle)
 {
+    const LayoutObject& layoutObject = *LineLayoutAPIShim::constLayoutObjectFrom(lineLayoutItem);
     TextPainter::Style selectionStyle = textStyle;
     bool usesTextAsClip = paintInfo.phase == PaintPhaseTextClip;
     bool isPrinting = paintInfo.isPrinting();
 
     if (haveSelection) {
         if (!usesTextAsClip) {
             selectionStyle.fillColor = layoutObject.selectionForegroundColor(paintInfo.globalPaintFlags());
             selectionStyle.emphasisMarkColor = layoutObject.selectionEmphasisMarkColor(paintInfo.globalPaintFlags());
         }
 
@@ skipping 52 matching lines @@
     TextRun placeholderTextRun(&ideographicFullStopCharacter, 1);
     FloatPoint emphasisMarkTextOrigin(m_textBounds.x().toFloat(), m_textBounds.y().toFloat() + m_font.fontMetrics().ascent() + m_emphasisMarkOffset);
     TextRunPaintInfo textRunPaintInfo(placeholderTextRun);
     textRunPaintInfo.bounds = FloatRect(m_textBounds);
     m_graphicsContext.concatCTM(rotation(m_textBounds, Clockwise));
     m_graphicsContext.drawEmphasisMarks(m_combinedText->originalFont(), textRunPaintInfo, m_emphasisMark, emphasisMarkTextOrigin);
     m_graphicsContext.concatCTM(rotation(m_textBounds, Counterclockwise));
 }
 
 } // namespace blink