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/*
* Copyright (C) 2022 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 "config.h"
#include "EllipsisBoxPainter.h"
#include "InlineIteratorTextBox.h"
#include "LineSelection.h"
#include "PaintInfo.h"
#include "RenderView.h"
namespace WebCore {
EllipsisBoxPainter::EllipsisBoxPainter(const InlineIterator::LineBox& lineBox, PaintInfo& paintInfo, const LayoutPoint& paintOffset, Color selectionForegroundColor, Color selectionBackgroundColor)
: m_lineBox(lineBox)
, m_paintInfo(paintInfo)
, m_paintOffset(paintOffset)
, m_selectionForegroundColor(selectionForegroundColor)
, m_selectionBackgroundColor(selectionBackgroundColor)
{
}
void EllipsisBoxPainter::paint()
{
// FIXME: Transition it to TextPainter.
auto& context = m_paintInfo.context();
auto& style = m_lineBox.style();
auto textColor = style.visitedDependentColorWithColorFilter(CSSPropertyWebkitTextFillColor);
if (m_paintInfo.forceTextColor())
textColor = m_paintInfo.forcedTextColor();
if (m_lineBox.ellipsisSelectionState() != RenderObject::HighlightState::None) {
paintSelection();
// Select the correct color for painting the text.
auto foreground = m_paintInfo.forceTextColor() ? m_paintInfo.forcedTextColor() : m_selectionForegroundColor;
if (foreground.isValid() && foreground != textColor)
context.setFillColor(foreground);
}
if (textColor != context.fillColor())
context.setFillColor(textColor);
bool setShadow = WTF::switchOn(style.textShadow(),
[&](const CSS::Keyword::None&) {
return false;
},
[&](const auto& shadows) {
context.setDropShadow({ LayoutSize(shadows[0].location.x().value, shadows[0].location.y().value), shadows[0].blur.value, style.colorWithColorFilter(shadows[0].color), ShadowRadiusMode::Default });
return true;
}
);
auto visualRect = m_lineBox.ellipsisVisualRect();
auto textOrigin = visualRect.location();
textOrigin.move(m_paintOffset.x(), m_paintOffset.y() + style.metricsOfPrimaryFont().intAscent());
context.drawBidiText(style.fontCascade(), m_lineBox.ellipsisText(), textOrigin);
if (textColor != context.fillColor())
context.setFillColor(textColor);
if (setShadow)
context.clearDropShadow();
}
void EllipsisBoxPainter::paintSelection()
{
auto& context = m_paintInfo.context();
auto& style = m_lineBox.style();
auto textColor = style.visitedDependentColorWithColorFilter(CSSPropertyColor);
auto backgroundColor = m_selectionBackgroundColor;
if (!backgroundColor.isVisible())
return;
// If the text color ends up being the same as the selection background, invert the selection background.
if (textColor == backgroundColor)
backgroundColor = backgroundColor.invertedColorWithAlpha(1.0);
auto stateSaver = GraphicsContextStateSaver { context };
auto visualRect = LayoutRect { m_lineBox.ellipsisVisualRect(InlineIterator::LineBox::AdjustedForSelection::Yes) };
visualRect.move(m_paintOffset.x(), m_paintOffset.y());
auto ellipsisText = m_lineBox.ellipsisText();
constexpr bool canUseSimplifiedTextMeasuring = false;
style.fontCascade().adjustSelectionRectForText(canUseSimplifiedTextMeasuring, ellipsisText, visualRect);
context.fillRect(snapRectToDevicePixelsWithWritingDirection(visualRect, m_lineBox.formattingContextRoot().document().deviceScaleFactor(), ellipsisText.ltr()), backgroundColor);
}
}
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