New Control: MultiView

- adding basic paging options - adding GetOrigin method to find control or form who has sent a message - adding Test for MultiView
2021-02-20 01:51:01 +01:00
parent dc8cb81284
commit fc44b7d38c
8 changed files with 388 additions and 42 deletions
@@ -0,0 +1,133 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TelegramBotBase.Args;
+using TelegramBotBase.Base;
+using static TelegramBotBase.Base.Async;
+
+namespace TelegramBotBase.Controls.Hybrid
+{
+
+    /// <summary>
+    /// This Control is for having a basic form content switching control.
+    /// </summary>
+    public abstract class MultiView : Base.ControlBase
+    {
+        /// <summary>
+        /// Index of the current View.
+        /// </summary>
+        public int SelectedViewIndex
+        {
+            get
+            {
+                return m_iSelectedViewIndex;
+            }
+            set
+            {
+                m_iSelectedViewIndex = value;
+
+                //Already rendered? Re-Render
+                if (_Rendered)
+                    ForceRender().Wait();
+            }
+        }
+
+        private int m_iSelectedViewIndex = 0;
+
+        /// <summary>
+        /// Hold if the View has been rendered already.
+        /// </summary>
+        private bool _Rendered = false;
+
+        private List<int> Messages { get; set; }
+
+
+        public MultiView()
+        {
+            Messages = new List<int>();
+        }
+
+
+        private void Device_MessageSent(object sender, MessageSentEventArgs e)
+        {
+            if (e.Origin == null || !e.Origin.IsSubclassOf(typeof(MultiView)))
+                return;
+
+            this.Messages.Add(e.MessageId);
+        }
+
+        public override void Init()
+        {
+            Device.MessageSent += Device_MessageSent;
+        }
+
+        public override async Task Load(MessageResult result)
+        {
+            _Rendered = false;
+        }
+
+
+        public override async Task Render(MessageResult result)
+        {
+            //When already rendered, skip rendering
+            if (_Rendered)
+                return;
+
+            await CleanUpView();
+
+            await RenderView(new RenderViewEventArgs(this.SelectedViewIndex));
+
+            _Rendered = true;
+        }
+
+
+        /// <summary>
+        /// Will get invoked on rendering the current controls view.
+        /// </summary>
+        /// <param name="e"></param>
+        public virtual async Task RenderView(RenderViewEventArgs e)
+        {
+
+
+        }
+
+        async Task CleanUpView()
+        {
+
+            var tasks = new List<Task>();
+
+            foreach (var msg in this.Messages)
+            {
+                tasks.Add(this.Device.DeleteMessage(msg));
+            }
+
+            await Task.WhenAll(tasks);
+
+            this.Messages.Clear();
+
+        }
+
+        /// <summary>
+        /// Forces render of control contents.
+        /// </summary>
+        public async Task ForceRender()
+        {
+            await CleanUpView();
+
+            await RenderView(new RenderViewEventArgs(this.SelectedViewIndex));
+
+            _Rendered = true;
+        }
+
+        public override async Task Cleanup()
+        {
+            Device.MessageSent -= Device_MessageSent;
+
+            await CleanUpView();
+        }
+
+    }
+}