66 lines
2.3 KiB
C#
66 lines
2.3 KiB
C#
// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using Unity.CodeEditor.Document;
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using Unity.CodeEditor.Utils;
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namespace Unity.CodeEditor.Editing
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{
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/// <summary>
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/// <see cref="IReadOnlySectionProvider"/> that has no read-only sections; all text is editable.
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/// </summary>
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sealed class NoReadOnlySections : IReadOnlySectionProvider
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{
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internal static readonly NoReadOnlySections Instance = new NoReadOnlySections();
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public bool CanInsert(int offset)
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{
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return true;
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}
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public IEnumerable<ISegment> GetDeletableSegments(ISegment segment)
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{
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if (segment == null)
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throw new ArgumentNullException(nameof(segment));
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// the segment is always deletable
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return ExtensionMethods.Sequence(segment);
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}
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}
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/// <summary>
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/// <see cref="IReadOnlySectionProvider"/> that completely disables editing.
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/// </summary>
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sealed class ReadOnlySectionDocument : IReadOnlySectionProvider
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{
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internal static readonly ReadOnlySectionDocument Instance = new ReadOnlySectionDocument();
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public bool CanInsert(int offset)
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{
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return false;
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}
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public IEnumerable<ISegment> GetDeletableSegments(ISegment segment)
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{
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return Enumerable.Empty<ISegment>();
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}
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}
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}
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