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/*
* Copyright (C) 2010-2020 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.
*/
#pragma once
#include "FloatRect.h"
#include "Image.h"
#include <wtf/EnumTraits.h>
#include <wtf/OptionSet.h>
#include <wtf/RefCounted.h>
#include <wtf/Vector.h>
namespace WebCore {
class Frame;
class GraphicsContext;
struct SimpleRange;
// FIXME: Move PresentationTransition to TextIndicatorWindow, because it's about presentation.
enum class TextIndicatorPresentationTransition : uint8_t {
None,
// These animations drive themselves.
Bounce,
BounceAndCrossfade,
// This animation needs to be driven manually via TextIndicatorWindow::setAnimationProgress.
FadeIn,
};
// Make sure to keep these in sync with the ones in Internals.idl.
enum class TextIndicatorOption : uint16_t {
// Use the styled text color instead of forcing black text (the default)
RespectTextColor = 1 << 0,
// Paint backgrounds, even if they're not part of the Range
PaintBackgrounds = 1 << 1,
// Don't restrict painting to the given Range
PaintAllContent = 1 << 2,
// Take two snapshots:
// - one including the selection highlight and ignoring other painting-related options
// - one respecting the other painting-related options
IncludeSnapshotWithSelectionHighlight = 1 << 3,
// Tightly fit the content instead of expanding to cover the bounds of the selection highlight
TightlyFitContent = 1 << 4,
// If there are any non-inline or replaced elements in the Range, indicate the bounding rect
// of the range instead of the individual subrects, and don't restrict painting to the given Range
UseBoundingRectAndPaintAllContentForComplexRanges = 1 << 5,
// By default, TextIndicator removes any margin if the given Range matches the
// selection Range. If this option is set, maintain the margin in any case.
IncludeMarginIfRangeMatchesSelection = 1 << 6,
// By default, TextIndicator clips the indicated rects to the visible content rect.
// If this option is set, expand the clip rect outward so that slightly offscreen content will be included.
ExpandClipBeyondVisibleRect = 1 << 7,
// By default, TextIndicator clips the indicated rects to the visible content rect.
// If this option is set, do not clip to the visible rect.
DoNotClipToVisibleRect = 1 << 8,
// Include an additional snapshot of everything in view, with the exception of nodes within the currently selected range.
IncludeSnapshotOfAllVisibleContentWithoutSelection = 1 << 9,
// By default, TextIndicator uses text rects to size the snapshot. Enabling this flag causes it to use the bounds of the
// selection rects that would enclose the given Range instead.
// Currently, this is only supported on iOS.
UseSelectionRectForSizing = 1 << 10,
// Compute a background color to use when rendering a platter around the content image, falling back to a default if the
// content's background is too complex to be captured by a single color.
ComputeEstimatedBackgroundColor = 1 << 11,
};
struct TextIndicatorData {
FloatRect selectionRectInRootViewCoordinates;
FloatRect textBoundingRectInRootViewCoordinates;
FloatRect contentImageWithoutSelectionRectInRootViewCoordinates;
Vector<FloatRect> textRectsInBoundingRectCoordinates;
float contentImageScaleFactor { 1 };
RefPtr<Image> contentImageWithHighlight;
RefPtr<Image> contentImageWithoutSelection;
RefPtr<Image> contentImage;
Color estimatedBackgroundColor;
TextIndicatorPresentationTransition presentationTransition { TextIndicatorPresentationTransition::None };
OptionSet<TextIndicatorOption> options;
};
class TextIndicator : public RefCounted<TextIndicator> {
public:
// FIXME: These are fairly Mac-specific, and they don't really belong here.
// But they're needed at TextIndicator creation time, so they can't go in TextIndicatorWindow.
// Maybe they can live in some Theme code somewhere?
constexpr static float defaultHorizontalMargin { 2 };
constexpr static float defaultVerticalMargin { 1 };
WEBCORE_EXPORT static Ref<TextIndicator> create(const TextIndicatorData&);
WEBCORE_EXPORT static RefPtr<TextIndicator> createWithSelectionInFrame(Frame&, OptionSet<TextIndicatorOption>, TextIndicatorPresentationTransition, FloatSize margin = FloatSize(defaultHorizontalMargin, defaultVerticalMargin));
WEBCORE_EXPORT static RefPtr<TextIndicator> createWithRange(const SimpleRange&, OptionSet<TextIndicatorOption>, TextIndicatorPresentationTransition, FloatSize margin = FloatSize(defaultHorizontalMargin, defaultVerticalMargin));
WEBCORE_EXPORT ~TextIndicator();
FloatRect selectionRectInRootViewCoordinates() const { return m_data.selectionRectInRootViewCoordinates; }
FloatRect textBoundingRectInRootViewCoordinates() const { return m_data.textBoundingRectInRootViewCoordinates; }
const Vector<FloatRect>& textRectsInBoundingRectCoordinates() const { return m_data.textRectsInBoundingRectCoordinates; }
float contentImageScaleFactor() const { return m_data.contentImageScaleFactor; }
Image* contentImageWithHighlight() const { return m_data.contentImageWithHighlight.get(); }
Image* contentImage() const { return m_data.contentImage.get(); }
TextIndicatorPresentationTransition presentationTransition() const { return m_data.presentationTransition; }
void setPresentationTransition(TextIndicatorPresentationTransition transition) { m_data.presentationTransition = transition; }
TextIndicatorData data() const { return m_data; }
private:
TextIndicator(const TextIndicatorData&);
TextIndicatorData m_data;
};
} // namespace WebKit
namespace WTF {
template<> struct EnumTraits<WebCore::TextIndicatorOption> {
using values = EnumValues<
WebCore::TextIndicatorOption,
WebCore::TextIndicatorOption::RespectTextColor,
WebCore::TextIndicatorOption::PaintBackgrounds,
WebCore::TextIndicatorOption::PaintAllContent,
WebCore::TextIndicatorOption::IncludeSnapshotWithSelectionHighlight,
WebCore::TextIndicatorOption::TightlyFitContent,
WebCore::TextIndicatorOption::UseBoundingRectAndPaintAllContentForComplexRanges,
WebCore::TextIndicatorOption::IncludeMarginIfRangeMatchesSelection,
WebCore::TextIndicatorOption::ExpandClipBeyondVisibleRect,
WebCore::TextIndicatorOption::DoNotClipToVisibleRect,
WebCore::TextIndicatorOption::IncludeSnapshotOfAllVisibleContentWithoutSelection,
WebCore::TextIndicatorOption::UseSelectionRectForSizing,
WebCore::TextIndicatorOption::ComputeEstimatedBackgroundColor
>;
};
template<> struct EnumTraits<WebCore::TextIndicatorPresentationTransition> {
using values = EnumValues<
WebCore::TextIndicatorPresentationTransition,
WebCore::TextIndicatorPresentationTransition::None,
WebCore::TextIndicatorPresentationTransition::Bounce,
WebCore::TextIndicatorPresentationTransition::BounceAndCrossfade,
WebCore::TextIndicatorPresentationTransition::FadeIn
>;
};
} // namespace WTF