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e2b4fef6c7
The text cursor follows slightly different "intuitive" rules than the regular hit testing. Clicking past the right edge of a text box should still "hit" the text box, and place the cursor at its end, for example. We solve this by adding a HitTestType enum that is passed to hit_test() and determines whether past-the-edge candidates are considered.
105 lines
4 KiB
C++
105 lines
4 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/OwnPtr.h>
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#include <LibGfx/Rect.h>
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#include <LibWeb/Layout/LayoutNode.h>
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#include <LibWeb/Painting/StackingContext.h>
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namespace Web {
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class LayoutBox : public LayoutNodeWithStyleAndBoxModelMetrics {
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public:
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const Gfx::FloatRect absolute_rect() const;
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Gfx::FloatPoint effective_offset() const;
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void set_offset(const Gfx::FloatPoint& offset);
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void set_offset(float x, float y) { set_offset({ x, y }); }
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const Gfx::FloatSize& size() const { return m_size; }
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void set_size(const Gfx::FloatSize&);
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void set_size(float width, float height) { set_size({ width, height }); }
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void set_width(float width) { set_size(width, height()); }
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void set_height(float height) { set_size(width(), height); }
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float width() const { return m_size.width(); }
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float height() const { return m_size.height(); }
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float absolute_x() const { return absolute_rect().x(); }
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float absolute_y() const { return absolute_rect().y(); }
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Gfx::FloatPoint absolute_position() const { return absolute_rect().location(); }
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virtual HitTestResult hit_test(const Gfx::IntPoint&, HitTestType) const override;
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virtual void set_needs_display() override;
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bool is_body() const;
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void set_containing_line_box_fragment(LineBoxFragment&);
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bool establishes_stacking_context() const;
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StackingContext* stacking_context() { return m_stacking_context; }
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const StackingContext* stacking_context() const { return m_stacking_context; }
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void set_stacking_context(NonnullOwnPtr<StackingContext> context) { m_stacking_context = move(context); }
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StackingContext* enclosing_stacking_context();
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virtual void paint(PaintContext&, PaintPhase) override;
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protected:
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LayoutBox(DOM::Document& document, DOM::Node* node, NonnullRefPtr<CSS::StyleProperties> style)
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: LayoutNodeWithStyleAndBoxModelMetrics(document, node, move(style))
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{
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}
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virtual void did_set_rect() { }
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private:
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virtual bool is_box() const final { return true; }
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enum class Edge {
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Top,
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Right,
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Bottom,
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Left,
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};
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void paint_border(PaintContext&, Edge, const Gfx::FloatRect&, CSS::PropertyID style_property_id, const BorderData&);
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Gfx::FloatPoint m_offset;
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Gfx::FloatSize m_size;
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// Some boxes hang off of line box fragments. (inline-block, inline-table, replaced, etc)
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WeakPtr<LineBoxFragment> m_containing_line_box_fragment;
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OwnPtr<StackingContext> m_stacking_context;
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};
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}
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AK_BEGIN_TYPE_TRAITS(Web::LayoutBox)
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static bool is_type(const Web::LayoutNode& layout_node) { return layout_node.is_box(); }
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AK_END_TYPE_TRAITS()
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