具备界面基础功能

2026-01-01 22:40:32 +08:00
parent 0c86b4dad3
commit d039559402
81 changed files with 8333 additions and 1905 deletions
--- a/SHH.CameraDashboard/Core/TouchBehavior.cs
+++ b/SHH.CameraDashboard/Core/TouchBehavior.cs
@@ -0,0 +1,81 @@
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Input;
+
+namespace SHH.CameraDashboard;
+
+public static class TouchBehavior
+{
+    //原有 Action 属性保持不变...
+    public static readonly DependencyProperty ActionProperty =
+        DependencyProperty.RegisterAttached("Action", typeof(PtzAction?), typeof(TouchBehavior), new PropertyMetadata(null, OnActionChanged));
+
+    public static PtzAction? GetAction(DependencyObject obj) => (PtzAction?)obj.GetValue(ActionProperty);
+    public static void SetAction(DependencyObject obj, PtzAction? value) => obj.SetValue(ActionProperty, value);
+
+    // ★★★ [新增] 私有附加属性，用于记录“是否处于按下状态” ★★★
+    private static readonly DependencyProperty IsActiveProperty =
+        DependencyProperty.RegisterAttached("IsActive", typeof(bool), typeof(TouchBehavior), new PropertyMetadata(false));
+
+    private static bool GetIsActive(DependencyObject obj) => (bool)obj.GetValue(IsActiveProperty);
+    private static void SetIsActive(DependencyObject obj, bool value) => obj.SetValue(IsActiveProperty, value);
+
+
+    private static void OnActionChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+    {
+        if (d is Button btn)
+        {
+            btn.PreviewMouseDown -= Btn_PreviewMouseDown;
+            btn.PreviewMouseUp -= Btn_PreviewMouseUp;
+            btn.MouseLeave -= Btn_PreviewMouseUp;
+
+            if (e.NewValue != null)
+            {
+                btn.PreviewMouseDown += Btn_PreviewMouseDown;
+                btn.PreviewMouseUp += Btn_PreviewMouseUp;
+                btn.MouseLeave += Btn_PreviewMouseUp;
+            }
+        }
+    }
+
+    private static void Btn_PreviewMouseDown(object sender, MouseButtonEventArgs e)
+    {
+        if (sender is Button btn && btn.DataContext is CameraPtzViewModel vm)
+        {
+            var action = GetAction(btn);
+            if (action.HasValue && vm.StartCommand.CanExecute(action.Value))
+            {
+                // 1. 标记为活跃状态
+                SetIsActive(btn, true);
+
+                // 2. 执行开始命令
+                vm.StartCommand.Execute(action.Value);
+
+                // (可选) 捕获鼠标，防止快速拖出窗口丢失 MouseUp
+                btn.CaptureMouse();
+            }
+        }
+    }
+
+    private static void Btn_PreviewMouseUp(object sender, MouseEventArgs e)
+    {
+        if (sender is Button btn && btn.DataContext is CameraPtzViewModel vm)
+        {
+            // ★★★ [核心修改] 只有之前标记为活跃，才执行停止 ★★★
+            if (GetIsActive(btn))
+            {
+                var action = GetAction(btn);
+                if (action.HasValue && vm.StopCommand.CanExecute(action.Value))
+                {
+                    vm.StopCommand.Execute(action.Value);
+                }
+
+                // 重置状态
+                SetIsActive(btn, false);
+
+                // 释放鼠标
+                btn.ReleaseMouseCapture();
+            }
+        }
+    }
+}