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/**
* Copyright (C) 2006, 2007 Apple Inc. All rights reserved
* Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "RenderTextControlMultiLine.h"
#include "HTMLNames.h"
#include "HTMLTextAreaElement.h"
#include "HitTestResult.h"
#include "LocalFrame.h"
#include "RenderBoxInlines.h"
#include "RenderBoxModelObjectInlines.h"
#include "RenderLayerScrollableArea.h"
#include "RenderStyleSetters.h"
#include "ShadowRoot.h"
#include "StyleInheritedData.h"
#include "TextControlInnerElements.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(RenderTextControlMultiLine);
RenderTextControlMultiLine::RenderTextControlMultiLine(HTMLTextAreaElement& element, RenderStyle&& style)
: RenderTextControl(Type::TextControlMultiLine, element, WTFMove(style))
{
ASSERT(isRenderTextControlMultiLine());
}
// Do not add any code in below destructor. Add it to willBeDestroyed() instead.
RenderTextControlMultiLine::~RenderTextControlMultiLine() = default;
HTMLTextAreaElement& RenderTextControlMultiLine::textAreaElement() const
{
return downcast<HTMLTextAreaElement>(RenderTextControl::textFormControlElement());
}
bool RenderTextControlMultiLine::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction)
{
if (!RenderTextControl::nodeAtPoint(request, result, locationInContainer, accumulatedOffset, hitTestAction))
return false;
const LayoutPoint adjustedPoint(accumulatedOffset + location());
if (isPointInOverflowControl(result, locationInContainer.point(), adjustedPoint))
return true;
if (result.innerNode() == &textAreaElement() || result.innerNode() == innerTextElement())
hitInnerTextElement(result, locationInContainer.point(), accumulatedOffset);
return true;
}
float RenderTextControlMultiLine::getAverageCharWidth()
{
#if !PLATFORM(IOS_FAMILY)
// Since Lucida Grande is the default font, we want this to match the width
// of Courier New, the default font for textareas in IE, Firefox and Safari Win.
// 1229 is the avgCharWidth value in the OS/2 table for Courier New.
if (style().fontCascade().firstFamily() == "Lucida Grande"_s)
return scaleEmToUnits(1229);
#endif
return RenderTextControl::getAverageCharWidth();
}
LayoutUnit RenderTextControlMultiLine::preferredContentLogicalWidth(float charWidth) const
{
float width = ceilf(charWidth * textAreaElement().cols());
auto overflow = writingMode().isHorizontal() ? style().overflowY() : style().overflowX();
// We are able to have a vertical scrollbar if the overflow style is scroll or auto
if ((overflow == Overflow::Scroll) || (overflow == Overflow::Auto))
width += scrollbarThickness();
return LayoutUnit(width);
}
LayoutUnit RenderTextControlMultiLine::computeControlLogicalHeight(LayoutUnit lineHeight, LayoutUnit nonContentHeight) const
{
return lineHeight * textAreaElement().rows() + nonContentHeight;
}
LayoutUnit RenderTextControlMultiLine::baselinePosition(FontBaseline baselineType, bool firstLine, LineDirectionMode direction, LinePositionMode linePositionMode) const
{
return RenderBox::baselinePosition(baselineType, firstLine, direction, linePositionMode);
}
void RenderTextControlMultiLine::layoutExcludedChildren(RelayoutChildren relayoutChildren)
{
RenderTextControl::layoutExcludedChildren(relayoutChildren);
HTMLElement* placeholder = textFormControlElement().placeholderElement();
RenderElement* placeholderRenderer = placeholder ? placeholder->renderer() : 0;
if (!placeholderRenderer)
return;
if (CheckedPtr placeholderBox = dynamicDowncast<RenderBox>(placeholderRenderer)) {
placeholderBox->mutableStyle().setLogicalWidth(Length(contentBoxLogicalWidth() - placeholderBox->borderAndPaddingLogicalWidth(), LengthType::Fixed));
placeholderBox->layoutIfNeeded();
placeholderBox->setX(borderLeft() + paddingLeft());
placeholderBox->setY(borderTop() + paddingTop());
}
}
}
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