Fix bug where sometimes Autocomplete menu would not show even though suggestions exist

ts/components/DropdownMenu.svelte

@@ -11,11 +11,12 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     export { className as class };
 
     export let labelledby: string | undefined = undefined;
+    export let show = false;
 
     setContext(dropdownKey, null);
 </script>
 
-<div {id} class="dropdown-menu" aria-labelledby={labelledby}>
+<div {id} class="dropdown-menu" class:show aria-labelledby={labelledby}>
     <div class="dropdown-content {className}">
         <slot />
     </div>

ts/components/WithDropdown.svelte

@@ -14,7 +14,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     export let toggleOpen = true;
     export let drop: "down" | "up" = "down";
 
-    let placement: string;
+    let placement: "bottom" | "top";
     $: switch (drop) {
         case "down":
             placement = "bottom";
@@ -52,10 +52,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
         dropdown = new Dropdown(toggle, {
             autoClose,
-            popperConfig: (defaultConfig: Record<string, any>) => ({
-                ...defaultConfig,
-                placement,
-            }),
+            popperConfig: { placement },
         } as any);
 
         if (autoOpen) {

ts/editor/TagEditor.svelte

@@ -14,7 +14,6 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     import Tag from "./Tag.svelte";
     import WithAutocomplete from "./WithAutocomplete.svelte";
     import ButtonToolbar from "components/ButtonToolbar.svelte";
-    import { controlPressed } from "lib/keys";
     import type { Tag as TagType } from "./tags";
     import {
         attachId,
@@ -34,12 +33,17 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
         tags = names.map(replaceWithUnicodeSeparator).map(attachId);
     }
 
+    const noSuggestions = Promise.resolve([]);
+    let suggestionsPromise: Promise<string[]> = noSuggestions;
+
     function saveTags(): void {
         bridgeCommand(
             `saveTags:${JSON.stringify(
                 tags.map((tag) => tag.name).map(replaceWithColons)
             )}`
         );
+
+        suggestionsPromise = noSuggestions;
     }
 
     let active: number | null = null;
@@ -48,9 +52,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     let activeInput: HTMLInputElement;
 
     let autocomplete: any;
-
-    const noSuggestions = Promise.resolve([]);
-    let suggestionsPromise: Promise<string[]> = noSuggestions;
+    let autocompleteDisabled: boolean = false;
 
     async function fetchSuggestions(input: string): Promise<string[]> {
         const data = await postRequest(
@@ -67,12 +69,13 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
         const activeTag = tags[active!];
         const activeName = activeTag.name;
 
-        suggestionsPromise =
-            activeName.length === 0
+        autocompleteDisabled = activeName.length === 0;
+        suggestionsPromise = autocompleteDisabled
             ? noSuggestions
-                : fetchSuggestions(activeTag.name).then((names: string[]): string[] =>
-                      names.map(replaceWithUnicodeSeparator)
-                  );
+            : fetchSuggestions(activeTag.name).then((names: string[]): string[] => {
+                  autocompleteDisabled = names.length === 0;
+                  return names.map(replaceWithUnicodeSeparator);
+              });
     }
 
     function onAutocomplete(selected: string): void {
@@ -254,27 +257,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
         activeAfterBlur = null;
     }
 
-    function isPrintableKey(event: KeyboardEvent): boolean {
-        return event.key.length === 1 && !controlPressed(event);
-    }
-
-    function isDeletionKey(event: KeyboardEvent): boolean {
-        return event.code === "Backspace" || event.code === "Delete";
-    }
-
     function onKeydown(event: KeyboardEvent): void {
-        const visible = autocomplete.isVisible();
-        const printable = isPrintableKey(event);
-        const deletion = isDeletionKey(event);
-
-        if (!visible) {
-            if (printable || deletion) {
-                autocomplete.show();
-            } else {
-                return;
-            }
-        }
-
         switch (event.code) {
             case "ArrowUp":
                 autocomplete.selectPrevious();
@@ -464,12 +447,11 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
                             on:select={({ detail }) => onAutocomplete(detail.selected)}
                             on:choose={({ detail }) => onAutocomplete(detail.chosen)}
                             let:createAutocomplete
-                            let:disabled
                         >
                             <TagInput
                                 id={tag.id}
                                 class="tag-input position-absolute start-0 top-0 ps-2 py-0"
-                                {disabled}
+                                disabled={autocompleteDisabled}
                                 bind:name={activeName}
                                 bind:input={activeInput}
                                 on:focus={() => {

ts/editor/WithAutocomplete.svelte

@@ -17,17 +17,17 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     export let drop: "down" | "up" = "down";
     export let suggestionsPromise: Promise<string[]>;
 
-    let disabled = true;
     let dropdown: Dropdown;
+    let show = false;
 
     let suggestionsItems: string[] = [];
     $: suggestionsPromise.then((items) => {
-        if (items.length > 0) {
-            disabled = false;
+        show = items.length > 0;
+
+        if (show) {
             dropdown.show();
         } else {
             dropdown.hide();
-            disabled = true;
         }
 
         suggestionsItems = items;
@@ -83,7 +83,9 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     async function chooseSelected() {
         active = true;
         dispatch("choose", { chosen: suggestionsItems[selected ?? -1] });
+
         await tick();
+        show = false;
     }
 
     async function update() {
@@ -97,10 +99,6 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
         return selected !== null;
     }
 
-    function disable(): void {
-        disabled = true;
-    }
-
     const createAutocomplete =
         (createDropdown: (element: HTMLElement) => Dropdown) =>
         (element: HTMLElement): any => {
@@ -116,7 +114,6 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
                 chooseSelected,
                 update,
                 hasSelected,
-                disable,
             };
 
             return api;
@@ -141,14 +138,12 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
             setSelected(index);
         }
     }
-
-    onDestroy(() => dropdown?.dispose());
 </script>
 
 <WithDropdown {drop} toggleOpen={false} let:createDropdown>
-    <slot createAutocomplete={createAutocomplete(createDropdown)} {disabled} />
+    <slot createAutocomplete={createAutocomplete(createDropdown)} />
 
-    <DropdownMenu class={className}>
+    <DropdownMenu class={className} {show}>
         {#each suggestionsItems as suggestion, index}
             <AutocompleteItem
                 selected={index === selected}