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	 57dc179b1f
			
		
	
	
		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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| 
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| #pragma once
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| 
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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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| 
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| namespace GUI {
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| 
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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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| 
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|     virtual ~ModelEditingDelegate() = default;
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| 
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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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| 
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|     Widget* widget() { return m_widget; }
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|     Widget const* widget() const { return m_widget; }
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| 
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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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| 
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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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| 
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|     virtual void will_begin_editing() { }
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| 
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| protected:
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|     ModelEditingDelegate() = default;
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| 
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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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| 
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|     ModelIndex const& index() const { return m_index; }
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| 
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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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| 
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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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| 
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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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| 
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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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| }
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