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d8106dda73
The HTML <label> element is special in that it may be associated with some other <input> element. When the label element is clicked, the input element should be activated. To achieve this, a LableableNode base class is introduced to provide an interface for "labelable" elements to handle mouse events on their associated labels. This not only allows clicking the label to activate the input, but dragging the mouse from the label to the input (and vice- versa) while the mouse is clicked will also active the label. As of this commit, this infrastructure is not hooked up to any elements.
50 lines
2.0 KiB
C++
50 lines
2.0 KiB
C++
/*
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* Copyright (c) 2021, Tim Flynn <trflynn89@pm.me>
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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 <LibWeb/Forward.h>
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#include <LibWeb/Layout/ReplacedBox.h>
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namespace Web::Layout {
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class LabelableNode : public ReplacedBox {
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public:
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virtual void handle_associated_label_mousedown(Badge<Label>) { }
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virtual void handle_associated_label_mouseup(Badge<Label>) { }
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virtual void handle_associated_label_mousemove(Badge<Label>, [[maybe_unused]] bool is_inside_node_or_label) { }
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protected:
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LabelableNode(DOM::Document& document, DOM::Element& element, NonnullRefPtr<CSS::StyleProperties> style)
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: ReplacedBox(document, element, move(style))
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{
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}
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virtual ~LabelableNode() = default;
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};
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}
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