AI 145796: Land the WebKit merge @r42026.

Automated import of CL 145796

1 files changed, 86 insertions, 0 deletions

diff --git a/WebCore/rendering/RenderLineBoxList.h b/WebCore/rendering/RenderLineBoxList.h
new file mode 100644
index 0000000..52d7542
--- /dev/null
+++ b/WebCore/rendering/RenderLineBoxList.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 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
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE 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 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.
+ */
+
+
+#ifndef RenderLineBoxList_h
+#define RenderLineBoxList_h
+
+#include "RenderBox.h"
+
+namespace WebCore {
+
+class RenderLineBoxList {
+public:
+    RenderLineBoxList()
+        : m_firstLineBox(0)
+        , m_lastLineBox(0)
+    {
+    }
+
+#ifndef NDEBUG
+    ~RenderLineBoxList();
+#endif
+
+    InlineFlowBox* firstLineBox() const { return m_firstLineBox; }
+    InlineFlowBox* lastLineBox() const { return m_lastLineBox; }
+
+    void checkConsistency() const;
+
+    void appendLineBox(InlineFlowBox*);
+
+    void deleteLineBoxTree(RenderArena*);
+    void deleteLineBoxes(RenderArena*);
+
+    void extractLineBox(InlineFlowBox*);
+    void attachLineBox(InlineFlowBox*);
+    void removeLineBox(InlineFlowBox*);
+    
+    void dirtyLineBoxes();
+    void dirtyLinesFromChangedChild(RenderObject* parent, RenderObject* child);
+
+    void paint(RenderBoxModelObject*, RenderObject::PaintInfo&, int x, int y) const;
+    bool hitTest(RenderBoxModelObject*, const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction) const;
+    
+private:
+    // For block flows, each box represents the root inline box for a line in the
+    // paragraph.
+    // For inline flows, each box represents a portion of that inline.
+    InlineFlowBox* m_firstLineBox;
+    InlineFlowBox* m_lastLineBox;
+};
+
+
+#ifdef NDEBUG
+inline void RenderLineBoxList::checkConsistency() const
+{
+}
+#endif
+
+} // namespace WebCore
+
+#endif // RenderFlow_h