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https://github.com/LadybirdBrowser/ladybird.git
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d04c833002
This model does not support nested indices well, in that it flattens them all out. That's a FIXME for the future as it does its job for now.
72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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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/NonnullRefPtr.h>
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#include <AK/Optional.h>
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#include <AK/String.h>
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#include <LibGUI/Model.h>
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#include <LibGUI/TextBox.h>
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namespace GUI {
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class FilteringProxyModel final : public Model {
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public:
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static NonnullRefPtr<FilteringProxyModel> construct(Model& model)
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{
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return adopt(*new FilteringProxyModel(model));
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}
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virtual ~FilteringProxyModel() override {};
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virtual int row_count(const ModelIndex& = ModelIndex()) const override;
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virtual int column_count(const ModelIndex& = ModelIndex()) const override;
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virtual Variant data(const ModelIndex&, Role = Role::Display) const override;
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virtual void update() override;
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virtual ModelIndex index(int row, int column = 0, const ModelIndex& parent = ModelIndex()) const override;
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void set_filter_term(const StringView& term);
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ModelIndex map(const ModelIndex&) const;
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private:
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void filter();
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explicit FilteringProxyModel(Model& model)
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: m_model(model)
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{
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}
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Model& m_model;
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// Maps row to actual model index.
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Vector<ModelIndex> m_matching_indices;
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String m_filter_term;
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};
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}
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