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0f35912bd7
In the Spreadsheet app, selecting a cell and typing something (like "1") would create an empty editing delegate, set "1" as its value and immediately select the entire contents of the text box. If your goal was to type "123", that "1" was selected and will be replaced by "23". This changes the behavior of TableView to not select the editing delegate's contents if its creation was a result of a keydown event.
94 lines
2.2 KiB
C++
94 lines
2.2 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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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() { }
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void bind(Model& model, const ModelIndex& 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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const Widget* 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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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() { }
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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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const ModelIndex& 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() { }
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virtual ~StringModelEditingDelegate() override { }
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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->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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return textbox;
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}
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virtual Variant value() const override { return static_cast<const TextBox*>(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_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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