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/*
* Copyright (C) 2018 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 "FontAttributeChanges.h"
#include "CSSPropertyNames.h"
#include "CSSTextShadowPropertyValue.h"
#include "CSSValueKeywords.h"
#include "CSSValuePool.h"
#include "EditAction.h"
#include "EditingStyle.h"
#include "MutableStyleProperties.h"
#include "StyleProperties.h"
namespace WebCore {
FontChanges::FontChanges(String&& fontName, String&& fontFamily, std::optional<double>&& fontSize, std::optional<double>&& fontSizeDelta, std::optional<bool>&& bold, std::optional<bool>&& italic)
: m_fontName(WTFMove(fontName))
, m_fontFamily(WTFMove(fontFamily))
, m_fontSize(WTFMove(fontSize))
, m_fontSizeDelta(WTFMove(fontSizeDelta))
, m_bold(WTFMove(bold))
, m_italic(WTFMove(italic))
{
ASSERT(!m_fontSize || !m_fontSizeDelta);
}
#if !PLATFORM(COCOA)
const String& FontChanges::platformFontFamilyNameForCSS() const
{
return m_fontFamily;
}
#endif
Ref<EditingStyle> FontChanges::createEditingStyle() const
{
auto properties = createStyleProperties();
return EditingStyle::create(properties.ptr());
}
Ref<MutableStyleProperties> FontChanges::createStyleProperties() const
{
auto style = MutableStyleProperties::create();
if (!m_fontFamily.isNull()) {
AtomString familyNameForCSS { platformFontFamilyNameForCSS() };
if (!familyNameForCSS.isNull())
style->setProperty(CSSPropertyFontFamily, CSSValuePool::singleton().createFontFamilyValue(familyNameForCSS));
}
if (m_italic)
style->setProperty(CSSPropertyFontStyle, *m_italic ? CSSValueItalic : CSSValueNormal);
if (m_bold)
style->setProperty(CSSPropertyFontWeight, *m_bold ? CSSValueBold : CSSValueNormal);
if (m_fontSize)
style->setProperty(CSSPropertyFontSize, CSSPrimitiveValue::create(*m_fontSize, CSSUnitType::CSS_PX));
if (m_fontSizeDelta)
style->setProperty(CSSPropertyWebkitFontSizeDelta, CSSPrimitiveValue::create(*m_fontSizeDelta, CSSUnitType::CSS_PX));
return style;
}
static RefPtr<CSSValue> cssValueForTextShadow(const FontShadow& shadow)
{
if (shadow.offset.isZero() && !shadow.blurRadius)
return nullptr;
auto color = CSS::Color { CSS::ResolvedColor { shadow.color } };
auto width = CSS::Length<> { CSS::LengthUnit::Px, shadow.offset.width() };
auto height = CSS::Length<> { CSS::LengthUnit::Px, shadow.offset.height() };
auto blur = CSS::Length<CSS::Nonnegative> { CSS::LengthUnit::Px, shadow.blurRadius };
CSS::TextShadowProperty::List list {
CSS::TextShadow {
.color = WTFMove(color),
.location = { WTFMove(width), WTFMove(height) },
.blur = WTFMove(blur),
}
};
return CSSTextShadowPropertyValue::create(CSS::TextShadowProperty { WTFMove(list) });
}
FontAttributeChanges::FontAttributeChanges(std::optional<VerticalAlignChange>&& verticalAlign, std::optional<Color>&& backgroundColor, std::optional<Color>&& foregroundColor, std::optional<FontShadow>&& shadow, std::optional<bool>&& strikeThrough, std::optional<bool>&& underline, FontChanges&& fontChanges)
: m_verticalAlign(WTFMove(verticalAlign))
, m_backgroundColor(WTFMove(backgroundColor))
, m_foregroundColor(WTFMove(foregroundColor))
, m_shadow(WTFMove(shadow))
, m_strikeThrough(WTFMove(strikeThrough))
, m_underline(WTFMove(underline))
, m_fontChanges(WTFMove(fontChanges))
{
}
EditAction FontAttributeChanges::editAction() const
{
if (!m_verticalAlign && !m_backgroundColor && !m_shadow && !m_strikeThrough && !m_underline) {
if (m_foregroundColor && m_fontChanges.isEmpty())
return EditAction::SetColor;
if (!m_foregroundColor && !m_fontChanges.isEmpty())
return EditAction::SetFont;
}
return EditAction::ChangeAttributes;
}
Ref<EditingStyle> FontAttributeChanges::createEditingStyle() const
{
auto style = m_fontChanges.createStyleProperties();
auto& cssValuePool = CSSValuePool::singleton();
if (m_backgroundColor)
style->setProperty(CSSPropertyBackgroundColor, cssValuePool.createColorValue(*m_backgroundColor));
if (m_foregroundColor)
style->setProperty(CSSPropertyColor, cssValuePool.createColorValue(*m_foregroundColor));
if (m_shadow) {
if (auto shadowValue = cssValueForTextShadow(*m_shadow))
style->setProperty(CSSPropertyTextShadow, shadowValue.releaseNonNull());
else
style->setProperty(CSSPropertyTextShadow, CSSValueNone);
}
if (m_verticalAlign) {
switch (*m_verticalAlign) {
case VerticalAlignChange::Superscript:
style->setProperty(CSSPropertyVerticalAlign, CSSValueSuper);
break;
case VerticalAlignChange::Subscript:
style->setProperty(CSSPropertyVerticalAlign, CSSValueSub);
break;
case VerticalAlignChange::Baseline:
style->setProperty(CSSPropertyVerticalAlign, CSSValueBaseline);
break;
default:
ASSERT_NOT_REACHED();
}
}
auto editingStyle = EditingStyle::create(style.ptr());
if (m_strikeThrough)
editingStyle->setStrikeThroughChange(*m_strikeThrough ? TextDecorationChange::Add : TextDecorationChange::Remove);
if (m_underline)
editingStyle->setUnderlineChange(*m_underline ? TextDecorationChange::Add : TextDecorationChange::Remove);
return editingStyle;
}
} // namespace WebCore
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