feat(editor): 优化编辑器左边栏拖出体验，需要拖出一定距离才行

packages/editor/src/hooks/use-float-box.ts

@@ -1,4 +1,4 @@
-import { computed, ComputedRef, inject, ref, watch } from 'vue';
+import { computed, ComputedRef, inject, onBeforeUnmount, ref, watch } from 'vue';
 
 import type { Services } from '@editor/type';
 
@@ -30,22 +30,62 @@ export const useFloatBox = (slideKeys: ComputedRef<string[]>) => {
   const showingBoxKeys = computed(() =>
     Object.keys(floatBoxStates.value).filter((key) => floatBoxStates.value[key].status),
   );
-  const isDragging = ref(false);
 
-  const dragstartHandler = () => (isDragging.value = true);
-  const dragendHandler = (key: string, e: DragEvent) => {
-    const navMenuRect = services?.uiService?.get('navMenuRect');
-    floatBoxStates.value[key] = {
-      left: e.clientX,
-      top: (navMenuRect?.top ?? 0) + (navMenuRect?.height ?? 0),
-      status: true,
-    };
-    isDragging.value = false;
+  const dragState = {
+    startOffset: {
+      x: 0,
+      y: 0,
+    },
+    isDragging: false,
   };
 
-  document.body.addEventListener('dragover', (e: DragEvent) => {
-    if (!isDragging.value) return;
+  const dragstartHandler = (e: DragEvent) => {
+    dragState.isDragging = true;
+
+    dragState.startOffset.x = e.clientX;
+    dragState.startOffset.y = e.clientY;
+  };
+
+  const effectiveDistance = 20;
+
+  const dragendHandler = (key: string, e: DragEvent) => {
+    if (!dragState.isDragging) return;
+
+    const { startOffset } = dragState;
+
+    if (
+      Math.abs(startOffset.x - e.clientX) > effectiveDistance ||
+      Math.abs(startOffset.y - e.clientY) > effectiveDistance
+    ) {
+      const navMenuRect = services?.uiService?.get('navMenuRect');
+      floatBoxStates.value[key] = {
+        left: e.clientX,
+        top: (navMenuRect?.top ?? 0) + (navMenuRect?.height ?? 0),
+        status: true,
+      };
+    }
+
+    dragState.isDragging = false;
+  };
+
+  const dragoverHandler = (e: DragEvent) => {
+    if (!dragState.isDragging) return;
     e.preventDefault();
+  };
+
+  const blurHandler = () => {
+    dragState.startOffset.x = 0;
+    dragState.startOffset.y = 0;
+
+    dragState.isDragging = false;
+  };
+
+  globalThis.document.body.addEventListener('dragover', dragoverHandler);
+  globalThis.addEventListener('blur', blurHandler);
+
+  onBeforeUnmount(() => {
+    globalThis.document.body.removeEventListener('dragover', dragoverHandler);
+    globalThis.removeEventListener('blur', blurHandler);
   });
 
   watch(