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57dc179b1f
This will make it easier to support both string types at the same time while we convert code, and tracking down remaining uses. One big exception is Value::to_string() in LibJS, where the name is dictated by the ToString AO.
105 lines
2.5 KiB
C++
105 lines
2.5 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibGUI/Model.h>
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#include <LibGUI/TextBox.h>
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#include <LibGUI/Widget.h>
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namespace GUI {
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class ModelEditingDelegate {
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public:
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enum SelectionBehavior {
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DoNotSelect,
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SelectAll,
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};
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virtual ~ModelEditingDelegate() = default;
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void bind(Model& model, ModelIndex const& index)
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{
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if (m_model.ptr() == &model && m_index == index)
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return;
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m_model = model;
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m_index = index;
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m_widget = create_widget();
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}
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Widget* widget() { return m_widget; }
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Widget const* widget() const { return m_widget; }
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Function<void()> on_commit;
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Function<void()> on_rollback;
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Function<void()> on_change;
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virtual Variant value() const = 0;
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virtual void set_value(Variant const&, SelectionBehavior selection_behavior = SelectionBehavior::SelectAll) = 0;
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virtual void will_begin_editing() { }
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protected:
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ModelEditingDelegate() = default;
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virtual RefPtr<Widget> create_widget() = 0;
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void commit()
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{
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if (on_commit)
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on_commit();
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}
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void rollback()
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{
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if (on_rollback)
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on_rollback();
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}
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void change()
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{
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if (on_change)
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on_change();
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}
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ModelIndex const& index() const { return m_index; }
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private:
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RefPtr<Model> m_model;
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ModelIndex m_index;
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RefPtr<Widget> m_widget;
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};
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class StringModelEditingDelegate : public ModelEditingDelegate {
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public:
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StringModelEditingDelegate() = default;
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virtual ~StringModelEditingDelegate() override = default;
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virtual RefPtr<Widget> create_widget() override
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{
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auto textbox = TextBox::construct();
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textbox->set_frame_shape(Gfx::FrameShape::NoFrame);
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textbox->on_return_pressed = [this] {
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commit();
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};
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textbox->on_escape_pressed = [this] {
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rollback();
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};
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textbox->on_change = [this] {
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change();
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};
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return textbox;
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}
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virtual Variant value() const override { return static_cast<TextBox const*>(widget())->text(); }
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virtual void set_value(Variant const& value, SelectionBehavior selection_behavior) override
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{
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auto& textbox = static_cast<TextBox&>(*widget());
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textbox.set_text(value.to_deprecated_string());
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if (selection_behavior == SelectionBehavior::SelectAll)
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textbox.select_all();
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}
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};
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}
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