139 lines
5.1 KiB
C#
139 lines
5.1 KiB
C#
//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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// file="ViewResponder.cs"
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// Project: StgSharp
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// AuthorGroup: Nitload Space
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// Copyright (c) Nitload Space. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the “Software”), to deal in the Software without restriction,
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// including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software,
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// and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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//
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// The above copyright notice and
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// this permission notice shall be included in all copies
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// or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED “AS IS”,
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// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH
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// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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using StgSharp.Controlling.UsrActivity;
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using StgSharp.MVVM.ViewModel;
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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 System.Text;
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using System.Threading.Tasks;
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namespace StgSharp.MVVM
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{
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public partial class ViewBase
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{
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protected interface IViewResponder<out TVIew> where TVIew: ViewBase
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{
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Action? this[ IClickTrigger trigger ] { get; set; }
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void CustomizedInitialize( Func<IClickTrigger, string, Action> keyRegister );
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void Initialize( MethodLookUpDelegate methodGetter );
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void ProcessUserInput();
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bool ValidateInitializing();
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}
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protected abstract class ViewResponder<TView> : IViewResponder<TView> where TView: ViewBase
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{
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private bool _isInitialized;
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private Dictionary<IClickTrigger, Action> keyCallbackIndex;
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private Dictionary<string, Action> nameToCallbackMap;
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private TView _binding;
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protected ViewResponder( TView binding )
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{
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keyCallbackIndex = new Dictionary<IClickTrigger, Action>();
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nameToCallbackMap = new Dictionary<string, Action>();
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_binding = binding;
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}
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#pragma warning disable CA1043
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public Action? this[ IClickTrigger trigger ]
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#pragma warning restore CA1043
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{
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get => keyCallbackIndex.TryGetValue( trigger, out Action callback ) ?
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callback : null;
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set
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{
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if( keyCallbackIndex.TryGetValue( trigger, out Action callback ) )
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{
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callback += value;
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} else
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{
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keyCallbackIndex.Add(
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trigger, value ?? throw new ArgumentNullException( nameof( value ) ) );
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}
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}
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}
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protected TView Binding => _binding;
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public abstract void CustomizedInitialize(
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Func<IClickTrigger, string, Action> keyRegister );
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public void Initialize( MethodLookUpDelegate methodGetter )
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{
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if( _isInitialized ) {
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return;
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}
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CustomizedInitialize(
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( trigger, name ) => {
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if( !nameToCallbackMap.TryGetValue( name, out Action ret ) )
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{
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if( methodGetter( name, out Action lookup ) )
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{
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this[ trigger ] = lookup;
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} else
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{
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throw new InvalidOperationException(
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$"Cannot find method named {name} in binded view model" );
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}
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}
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return ret;
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} );
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}
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public void ProcessUserInput()
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{
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foreach( KeyValuePair<IClickTrigger, Action> pair in keyCallbackIndex )
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{
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if( InternalIO.glfwGetKey( _binding.ViewHandle,
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pair.Key.TargetKeyOrButtonID ) ==
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pair.Key.TriggeredStatus ) {
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pair.Value();
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}
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}
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}
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public abstract bool ValidateInitializing();
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}
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}
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}
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