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// 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.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_PAINT_INLINE_TEXT_BOX_PAINTER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_PAINT_INLINE_TEXT_BOX_PAINTER_H_
#include "third_party/blink/renderer/core/editing/markers/document_marker.h"
#include "third_party/blink/renderer/core/style/computed_style_constants.h"
#include "third_party/blink/renderer/platform/geometry/layout_rect.h"
#include "third_party/blink/renderer/platform/wtf/allocator.h"
namespace blink {
struct PaintInfo;
class Color;
class ComputedStyle;
class Font;
class GraphicsContext;
class InlineTextBox;
class LayoutObject;
class LayoutPoint;
class LayoutTextCombine;
class StyleableMarker;
class TextMatchMarker;
enum class DocumentMarkerPaintPhase { kForeground, kBackground };
class InlineTextBoxPainter {
STACK_ALLOCATED();
public:
InlineTextBoxPainter(const InlineTextBox& inline_text_box)
: inline_text_box_(inline_text_box) {}
void Paint(const PaintInfo&, const LayoutPoint& paint_offset);
// We don't paint composition or spelling markers that overlap a suggestion
// marker (to match the native Android behavior). This method lets us throw
// out the overlapping composition and spelling markers in O(N log N) time
// where N is the total number of DocumentMarkers in this node.
DocumentMarkerVector ComputeMarkersToPaint() const;
void PaintDocumentMarkers(const DocumentMarkerVector& markers_to_paint,
const PaintInfo&,
const LayoutPoint& box_origin,
const ComputedStyle&,
const Font&,
DocumentMarkerPaintPhase);
void PaintDocumentMarker(GraphicsContext&,
const LayoutPoint& box_origin,
const DocumentMarker&,
const ComputedStyle&,
const Font&,
bool grammar);
void PaintTextMatchMarkerForeground(const PaintInfo&,
const LayoutPoint& box_origin,
const TextMatchMarker&,
const ComputedStyle&,
const Font&);
void PaintTextMatchMarkerBackground(const PaintInfo&,
const LayoutPoint& box_origin,
const TextMatchMarker&,
const ComputedStyle&,
const Font&);
private:
enum class PaintOptions { kNormal, kCombinedText };
void PaintSingleMarkerBackgroundRun(GraphicsContext&,
const LayoutPoint& box_origin,
const ComputedStyle&,
const Font&,
Color background_color,
int start_pos,
int end_pos);
template <PaintOptions>
void PaintSelection(GraphicsContext&,
const LayoutRect& box_rect,
const ComputedStyle&,
const Font&,
Color text_color,
LayoutTextCombine* = nullptr);
template <PaintOptions>
LayoutRect GetSelectionRect(GraphicsContext&,
const LayoutRect& box_rect,
const ComputedStyle&,
const Font&,
LayoutTextCombine* = nullptr);
void PaintStyleableMarkerUnderline(GraphicsContext&,
const LayoutPoint& box_origin,
const StyleableMarker&,
const ComputedStyle&,
const Font&);
struct PaintOffsets {
unsigned start;
unsigned end;
};
PaintOffsets ApplyTruncationToPaintOffsets(const PaintOffsets&);
// For markers that shouldn't draw over a truncation ellipsis (i.e., not
// text match markers, which do draw over said ellipsis)
PaintOffsets MarkerPaintStartAndEnd(const DocumentMarker&);
bool ShouldPaintTextBox(const PaintInfo&);
void ExpandToIncludeNewlineForSelection(LayoutRect&);
LayoutObject& InlineLayoutObject() const;
const InlineTextBox& inline_text_box_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_PAINT_INLINE_TEXT_BOX_PAINTER_H_
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