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21d7575716
We'll use this function to position the caret when the user taps a text input control. Very little of the code in this patch is actually new. Most of it is restoring code that we previously removed from the engine. I've made some small changes to the restored code to handle the lack of a DOM. The only major change is to RenderObject::createPositionWithAffinity, which now just returns the values it captures instead of trying to compute a DOM position. TextAffinity and TextPosition are lifted from package:flutter. Once this patch rolls into package:flutter, I'll remove the declarations there.
93 lines
3.6 KiB
C++
93 lines
3.6 KiB
C++
/*
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* Copyright (C) 2004, 2005, 2006, 2007, 2009 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef SKY_ENGINE_CORE_RENDERING_RENDERREPLACED_H_
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#define SKY_ENGINE_CORE_RENDERING_RENDERREPLACED_H_
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#include "sky/engine/core/rendering/RenderBox.h"
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namespace blink {
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class RenderReplaced : public RenderBox {
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public:
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RenderReplaced();
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RenderReplaced(const LayoutSize& intrinsicSize);
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virtual ~RenderReplaced();
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virtual LayoutUnit computeReplacedLogicalWidth(ShouldComputePreferred = ComputeActual) const override;
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virtual LayoutUnit computeReplacedLogicalHeight() const override;
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bool hasReplacedLogicalHeight() const;
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LayoutRect replacedContentRect(const LayoutSize* overriddenIntrinsicSize = 0) const;
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virtual bool needsPreferredWidthsRecalculation() const override;
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// These values are specified to be 300 and 150 pixels in the CSS 2.1 spec.
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// http://www.w3.org/TR/CSS2/visudet.html#inline-replaced-width
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static const int defaultWidth;
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static const int defaultHeight;
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protected:
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virtual void willBeDestroyed() override;
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virtual void layout() override;
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virtual LayoutSize intrinsicSize() const override final { return m_intrinsicSize; }
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virtual void computeIntrinsicRatioInformation(FloatSize& intrinsicSize, double& intrinsicRatio) const override;
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virtual void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const override final;
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virtual LayoutUnit intrinsicContentLogicalHeight() const { return intrinsicLogicalHeight(); }
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virtual LayoutUnit minimumReplacedHeight() const { return LayoutUnit(); }
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virtual void setSelectionState(SelectionState) override final;
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bool isSelected() const;
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void setIntrinsicSize(const LayoutSize& intrinsicSize) { m_intrinsicSize = intrinsicSize; }
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virtual void intrinsicSizeChanged();
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virtual void paint(PaintInfo&, const LayoutPoint&, Vector<RenderBox*>& layers) final;
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bool shouldPaint(PaintInfo&, const LayoutPoint&);
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LayoutRect localSelectionRect(bool checkWhetherSelected = true) const; // This is in local coordinates, but it's a physical rect (so the top left corner is physical top left).
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private:
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virtual const char* renderName() const override { return "RenderReplaced"; }
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virtual bool canHaveChildren() const override { return false; }
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virtual void computePreferredLogicalWidths() override final;
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virtual void paintReplaced(PaintInfo&, const LayoutPoint&) { }
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virtual PositionWithAffinity positionForPoint(const LayoutPoint&) override final;
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virtual bool canBeSelectionLeaf() const override { return true; }
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void computeAspectRatioInformationForRenderBox(FloatSize& constrainedSize, double& intrinsicRatio) const;
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mutable LayoutSize m_intrinsicSize;
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};
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}
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#endif // SKY_ENGINE_CORE_RENDERING_RENDERREPLACED_H_
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