fix(editor): repeat trigger keys of at-menu was added (#11631)

Close [BS-2716](https://linear.app/affine-design/issue/BS-2716/移动端通过toolpanel唤起的at-menu，出现两个)

blocksuite/affine/widgets/linked-doc/src/config.ts

@@ -112,6 +112,7 @@ export type LinkedDocContext = {
   std: BlockStdScope;
   inlineEditor: AffineInlineEditor;
   startRange: InlineRange;
+  startNativeRange: Range;
   triggerKey: string;
   config: LinkedWidgetConfig;
   close: () => void;

blocksuite/affine/widgets/linked-doc/src/linked-doc-popover.ts

@@ -7,7 +7,6 @@ import {
 import { unsafeCSSVar } from '@blocksuite/affine-shared/theme';
 import {
   createKeydownObserver,
-  getCurrentNativeRange,
   getPopperPosition,
   getViewportElement,
 } from '@blocksuite/affine-shared/utils';
@@ -160,11 +159,15 @@ export class LinkedDocPopover extends SignalWatcher(
 
     // init
     this._updateLinkedDocGroup().catch(console.error);
-    this._disposables.addFromEvent(this, 'mousedown', e => {
+    this._disposables.addFromEvent(this, 'pointerdown', e => {
       // Prevent input from losing focus
       e.preventDefault();
     });
-    this._disposables.addFromEvent(window, 'mousedown', e => {
+    this._disposables.addFromEvent(this, 'mousedown', e => {
+      // Prevent input from losing focus in electron
+      e.preventDefault();
+    });
+    this._disposables.addFromEvent(window, 'pointerdown', e => {
       if (e.target === this) return;
       // We don't clear the query when clicking outside the popover
       this.context.close();
@@ -338,11 +341,8 @@ export class LinkedDocPopover extends SignalWatcher(
 
   override willUpdate() {
     if (!this.hasUpdated) {
-      const curRange = getCurrentNativeRange();
-      if (!curRange) return;
-
       const updatePosition = throttle(() => {
-        this._position = getPopperPosition(this, curRange);
+        this._position = getPopperPosition(this, this.context.startNativeRange);
       }, 10);
 
       this.disposables.addFromEvent(window, 'resize', updatePosition);

blocksuite/affine/widgets/linked-doc/src/widget.ts

@@ -43,6 +43,19 @@ export class AffineLinkedDocWidget extends WidgetComponent<RootBlockModel> {
 
   private readonly _mode$ = signal<'desktop' | 'mobile' | 'none'>('none');
 
+  private _addTriggerKey(inlineEditor: InlineEditor, triggerKey: string) {
+    const inlineRange = inlineEditor.getInlineRange();
+    if (!inlineRange) return;
+    inlineEditor.insertText(
+      { index: inlineRange.index, length: 0 },
+      triggerKey
+    );
+    inlineEditor.setInlineRange({
+      index: inlineRange.index + triggerKey.length,
+      length: 0,
+    });
+  }
+
   private _updateInputRects() {
     if (!this._context) return;
     const { inlineEditor, startRange, triggerKey } = this._context;
@@ -258,27 +271,30 @@ export class AffineLinkedDocWidget extends WidgetComponent<RootBlockModel> {
       inlineEditor = props.inlineEditor;
     }
 
-    const inlineRange = inlineEditor.getInlineRange();
-    if (!inlineRange) return;
-
     if (addTriggerKey) {
-      inlineEditor.insertText(
-        { index: inlineRange.index, length: 0 },
-        primaryTriggerKey
-      );
-      inlineEditor.setInlineRange({
-        index: inlineRange.index + primaryTriggerKey.length,
-        length: 0,
+      this._addTriggerKey(inlineEditor, primaryTriggerKey);
+      // we need to wait the range sync to get the correct startNativeRange
+      const subscription = inlineEditor.slots.inlineRangeSync.subscribe(() => {
+        this.show({ ...props, addTriggerKey: false });
+        subscription.unsubscribe();
       });
+      return;
     }
 
+    const startRange = inlineEditor.getInlineRange();
+    if (!startRange) return;
+
+    const startNativeRange = inlineEditor.getNativeRange();
+    if (!startNativeRange) return;
+
     const disposable = inlineEditor.slots.renderComplete.subscribe(() => {
       this._updateInputRects();
     });
     this._context = {
       std: this.std,
       inlineEditor,
-      startRange: inlineRange,
+      startRange,
+      startNativeRange,
       triggerKey: primaryTriggerKey,
       config: this.config,
       close: () => {