1 files changed, 173 insertions, 0 deletions
diff --git a/Source/WebKit2/UIProcess/FindIndicator.cpp b/Source/WebKit2/UIProcess/FindIndicator.cpp
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+++ b/Source/WebKit2/UIProcess/FindIndicator.cpp
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+/*
+ * Copyright (C) 2010 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
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "FindIndicator.h"
+
+#include "ShareableBitmap.h"
+#include <WebCore/Gradient.h>
+#include <WebCore/GraphicsContext.h>
+#include <WebCore/IntRect.h>
+#include <WebCore/Path.h>
+
+using namespace WebCore;
+
+static const float cornerRadius = 3.0;
+
+static const float shadowOffsetX = 0.0;
+static const float shadowOffsetY = 1.0;
+static const float shadowBlurRadius = 3.0;
+
+static const int shadowRed = 0;
+static const int shadowGreen = 0;
+static const int shadowBlue = 0;
+static const int shadowAlpha = 204;
+
+static const float lightBorderThickness = 1.0;
+static const float horizontalPaddingInsideLightBorder = 3.0;
+static const float verticalPaddingInsideLightBorder = 1.0;
+
+static const float horizontalBorderInsideShadow = lightBorderThickness + horizontalPaddingInsideLightBorder;
+static const float verticalBorderInsideShadow = lightBorderThickness + verticalPaddingInsideLightBorder;
+
+static const float leftBorderThickness = horizontalBorderInsideShadow + shadowOffsetX + shadowBlurRadius / 2.0;
+static const float topBorderThickness = verticalBorderInsideShadow - shadowOffsetY + shadowBlurRadius / 2.0;
+static const float rightBorderThickness = horizontalBorderInsideShadow - shadowOffsetX + shadowBlurRadius / 2.0;
+static const float bottomBorderThickness = verticalBorderInsideShadow + shadowOffsetY + shadowBlurRadius / 2.0;
+
+static const float horizontalOutsetToCenterOfLightBorder = horizontalBorderInsideShadow - lightBorderThickness / 2.0;
+static const float verticalOutsetToCenterOfLightBorder = verticalBorderInsideShadow - lightBorderThickness / 2.0;
+
+static const int lightBorderRed = 245;
+static const int lightBorderGreen = 230;
+static const int lightBorderBlue = 0;
+static const int lightBorderAlpha = 255;
+
+static const int gradientDarkRed = 237;
+static const int gradientDarkGreen = 204;
+static const int gradientDarkBlue = 0;
+static const int gradientDarkAlpha = 255;
+
+static const int gradientLightRed = 242;
+static const int gradientLightGreen = 239;
+static const int gradientLightBlue = 0;
+static const int gradientLightAlpha = 255;
+
+namespace WebKit {
+
+PassRefPtr<FindIndicator> FindIndicator::create(const FloatRect& selectionRect, const Vector<FloatRect>& textRects, const SharedMemory::Handle& contentImageHandle)
+{
+    RefPtr<ShareableBitmap> contentImage = ShareableBitmap::create(enclosingIntRect(selectionRect).size(), contentImageHandle);
+    if (!contentImage)
+        return 0;
+
+    return adoptRef(new FindIndicator(selectionRect, textRects, contentImage.release()));
+}
+
+FindIndicator::FindIndicator(const WebCore::FloatRect& selectionRect, const Vector<WebCore::FloatRect>& textRects, PassRefPtr<ShareableBitmap> contentImage)
+    : m_selectionRect(selectionRect)
+    , m_textRects(textRects)
+    , m_contentImage(contentImage)
+{
+}
+
+FindIndicator::~FindIndicator()
+{
+}
+
+static FloatRect inflateRect(const FloatRect& rect, float inflateX, float inflateY)
+{
+    FloatRect inflatedRect = rect;
+    inflatedRect.inflateX(inflateX);
+    inflatedRect.inflateY(inflateY);
+    
+    return inflatedRect;
+}
+
+FloatRect FindIndicator::frameRect() const
+{
+    return FloatRect(m_selectionRect.x() - leftBorderThickness, m_selectionRect.y() - topBorderThickness,
+                     m_selectionRect.width() + rightBorderThickness + leftBorderThickness,
+                     m_selectionRect.height() + topBorderThickness + bottomBorderThickness);
+}
+
+static Color lightBorderColor()
+{
+    return Color(lightBorderRed, lightBorderGreen, lightBorderBlue, lightBorderAlpha);
+}
+
+static Color shadowColor()
+{
+    return Color(shadowRed, shadowGreen, shadowBlue, shadowAlpha);
+}
+
+static Color gradientLightColor()
+{
+    return Color(gradientLightRed, gradientLightGreen, gradientLightBlue, gradientLightAlpha);
+}
+
+static Color gradientDarkColor()
+{
+    return Color(gradientDarkRed, gradientDarkGreen, gradientDarkBlue, gradientDarkAlpha);
+}
+
+static Path pathWithRoundedRect(const FloatRect& pathRect, float radius)
+{
+    Path path;
+    path.addRoundedRect(pathRect, FloatSize(radius, radius));
+
+    return path;
+}
+    
+void FindIndicator::draw(GraphicsContext& graphicsContext, const IntRect& dirtyRect)
+{
+    for (size_t i = 0; i < m_textRects.size(); ++i) {
+        FloatRect textRect = m_textRects[i];
+        textRect.move(leftBorderThickness, topBorderThickness);
+
+        graphicsContext.save();
+        FloatRect outerPathRect = inflateRect(textRect, horizontalOutsetToCenterOfLightBorder, verticalOutsetToCenterOfLightBorder);
+        graphicsContext.setShadow(FloatSize(shadowOffsetX, shadowOffsetY), shadowBlurRadius, shadowColor(), ColorSpaceSRGB);
+        graphicsContext.setFillColor(lightBorderColor(), ColorSpaceDeviceRGB);
+        graphicsContext.fillPath(pathWithRoundedRect(outerPathRect, cornerRadius));
+        graphicsContext.restore();
+
+        graphicsContext.save();
+        FloatRect innerPathRect = inflateRect(textRect, horizontalPaddingInsideLightBorder, verticalPaddingInsideLightBorder);
+        graphicsContext.clip(pathWithRoundedRect(innerPathRect, cornerRadius));
+        RefPtr<Gradient> gradient = Gradient::create(FloatPoint(innerPathRect.x(), innerPathRect.y()), FloatPoint(innerPathRect.x(), innerPathRect.bottom()));
+        gradient->addColorStop(0, gradientLightColor());
+        gradient->addColorStop(1, gradientDarkColor());
+        graphicsContext.setFillGradient(gradient);
+        graphicsContext.fillRect(outerPathRect);
+        graphicsContext.restore();
+
+        graphicsContext.save();
+        graphicsContext.translate(FloatSize(roundf(leftBorderThickness), roundf(topBorderThickness)));
+        m_contentImage->paint(graphicsContext, IntPoint(0, 0), m_contentImage->bounds());
+        graphicsContext.restore();
+    }
+}
+
+} // namespace WebKit