fix: Results filter now re-applied when settings or tasks edited

src/Renderer/QueryResultsRenderer.ts

@@ -62,6 +62,7 @@ export class QueryResultsRenderer {
     protected queryType: string; // whilst there is only one query type, there is no point logging this value
     public queryResult: QueryResult;
     public filteredQueryResult: QueryResult;
+    public filterString: string = '';
 
     constructor(
         className: string,
@@ -157,14 +158,14 @@ export class QueryResultsRenderer {
     public async render(state: State, tasks: Task[], content: HTMLDivElement) {
         this.performSearch(tasks);
         this.addToolbar(content);
-        await this.renderQueryResult(state, this.queryResult, content);
+        await this.renderQueryResult(state, this.filteredQueryResult, content);
     }
 
     private performSearch(tasks: Task[]) {
         const measureSearch = new PerformanceTracker(`Search: ${this.query.queryId} - ${this.filePath}`);
         measureSearch.start();
         this.queryResult = this.query.applyQueryToTasks(tasks);
-        this.filteredQueryResult = this.queryResult;
+        this.filterResults();
         measureSearch.finish();
     }
 
@@ -191,24 +192,21 @@ export class QueryResultsRenderer {
         const label = createAndAppendElement('label', toolbar);
         setIcon(label, 'lucide-filter');
         const searchBox = createAndAppendElement('input', label);
+        searchBox.value = this.filterString;
         searchBox.placeholder = 'Filter by description...';
         setTooltip(searchBox, 'Filter results');
         searchBox.addEventListener('input', async () => {
             const filterString = searchBox.value;
-            await this.applySearchBoxFilter(filterString, content);
+            await this.applySearchBoxFilterAndRerender(filterString, content);
         });
     }
 
-    public async applySearchBoxFilter(filterString: string, content: HTMLDivElement) {
-        const { filter, error } = new DescriptionField().createFilterOrErrorMessage(
-            'description includes ' + filterString,
-        );
-        if (error) {
-            new Notice('error searching for ' + filterString + ': ' + error);
-            return;
-        }
+    public async applySearchBoxFilterAndRerender(filterString: string, content: HTMLDivElement) {
+        this.filterString = filterString;
+
+        this.filterResults();
 
-        // We want to retain the Toolbar, to not lose the search string.
+        // We want to retain the Toolbar, to not lose the cursor position in the search string.
         // But we need to delete any pre-existing headings, tasks and task count.
         // The following while loop relies on the Toolbar being the first element.
         while (content.firstElementChild !== content.lastElementChild) {
@@ -220,10 +218,22 @@ export class QueryResultsRenderer {
             lastChild.remove();
         }
 
-        this.filteredQueryResult = this.queryResult.applyFilter(filter!);
         await this.renderQueryResult(State.Warm, this.filteredQueryResult, content);
     }
 
+    private filterResults() {
+        const { filter, error } = new DescriptionField().createFilterOrErrorMessage(
+            'description includes ' + this.filterString,
+        );
+        if (error) {
+            // If we can't create a filter, just silently show all the matching tasks
+            this.filteredQueryResult = this.queryResult;
+            return;
+        }
+
+        this.filteredQueryResult = this.queryResult.applyFilter(filter!);
+    }
+
     private addCopyButton(toolbar: HTMLDivElement) {
         const copyButton = createAndAppendElement('button', toolbar);
         setIcon(copyButton, 'lucide-copy');

tests/Renderer/QueryResultsRenderer.test.QueryResultsRenderer_-_sequences_global_query_change_to_query_layout_option.approved.html

@@ -1,5 +1,6 @@
 <h2>Initial results:</h2>
 
+<p>Results filter: ''</p>
 <!--
 - [ ] parent 📅 2025-12-01
   - [ ] child 🆔 childID
@@ -70,6 +71,7 @@ <h2>Initial results:</h2>
 </div>
 <h2>Check that urgency is shown by global query:</h2>
 
+<p>Results filter: ''</p>
 <!--
 - [ ] parent 📅 2025-12-01
   - [ ] child 🆔 childID

tests/Renderer/QueryResultsRenderer.test.QueryResultsRenderer_-_sequences_global_query_change_to_task_layout_option.approved.html

@@ -1,5 +1,6 @@
 <h2>Initial results:</h2>
 
+<p>Results filter: ''</p>
 <!--
 - [ ] parent 📅 2025-12-01
   - [ ] child 🆔 childID
@@ -70,6 +71,7 @@ <h2>Initial results:</h2>
 </div>
 <h2>Check that due date is hidden by global query:</h2>
 
+<p>Results filter: ''</p>
 <!--
 - [ ] parent 📅 2025-12-01
   - [ ] child 🆔 childID

tests/Renderer/QueryResultsRenderer.test.QueryResultsRenderer_-_sequences_rerendered_results_retain_the_filter.approved.html

@@ -0,0 +1,153 @@
+<h2>Initial results:</h2>
+
+<p>Results filter: ''</p>
+<!--
+- [ ] parent 📅 2025-12-01
+  - [ ] child 🆔 childID
+-->
+
+<div>
+  <div class="plugin-tasks-toolbar">
+    <label test-icon="lucide-filter">
+      <input placeholder="Filter by description..." test-tooltip="Filter results" />
+    </label>
+    <button test-icon="lucide-copy" test-tooltip="Copy results"></button>
+  </div>
+  <ul class="contains-task-list plugin-tasks-query-result tasks-layout-hide-urgency">
+    <li
+      class="task-list-item plugin-tasks-list-item"
+      data-task-due="today"
+      data-task-priority="normal"
+      data-task=""
+      data-line="0"
+      data-task-status-name="Todo"
+      data-task-status-type="TODO">
+      <input class="task-list-item-checkbox" type="checkbox" data-line="0" />
+      <span class="tasks-list-text">
+        <span class="task-description"><span>parent</span></span>
+        <span class="task-due" data-task-due="today" title="Click to edit due date, Right-click for more options">
+          <span>📅 2025-12-01</span>
+        </span>
+      </span>
+      <span class="task-extras">
+        <span class="tasks-backlink">
+          (
+          <a rel="noopener" target="_blank" class="internal-link">/</a>
+          )
+        </span>
+        <a class="tasks-edit" title="Edit task" href="#"></a>
+        <a class="tasks-postpone" title="ℹ️ Due tomorrow, on Tue 2nd Dec (right-click for more options)"></a>
+      </span>
+    </li>
+    <li
+      class="task-list-item plugin-tasks-list-item"
+      data-task-priority="normal"
+      data-task=""
+      data-line="1"
+      data-task-status-name="Todo"
+      data-task-status-type="TODO">
+      <input class="task-list-item-checkbox" type="checkbox" data-line="1" />
+      <span class="tasks-list-text">
+        <span class="task-description"><span>child</span></span>
+        <span class="task-id"><span>🆔 childID</span></span>
+      </span>
+      <span class="task-extras">
+        <span class="tasks-backlink">
+          (
+          <a rel="noopener" target="_blank" class="internal-link">/</a>
+          )
+        </span>
+        <a class="tasks-edit" title="Edit task" href="#"></a>
+      </span>
+    </li>
+  </ul>
+  <div class="task-count">2 tasks</div>
+</div>
+<h2>Filtered results (parent):</h2>
+
+<p>Results filter: 'parent'</p>
+<!--
+- [ ] parent 📅 2025-12-01
+  - [ ] child 🆔 childID
+-->
+
+<div>
+  <div class="plugin-tasks-toolbar">
+    <label test-icon="lucide-filter">
+      <input placeholder="Filter by description..." test-tooltip="Filter results" />
+    </label>
+    <button test-icon="lucide-copy" test-tooltip="Copy results"></button>
+  </div>
+  <ul class="contains-task-list plugin-tasks-query-result tasks-layout-hide-urgency">
+    <li
+      class="task-list-item plugin-tasks-list-item"
+      data-task-due="today"
+      data-task-priority="normal"
+      data-task=""
+      data-line="0"
+      data-task-status-name="Todo"
+      data-task-status-type="TODO">
+      <input class="task-list-item-checkbox" type="checkbox" data-line="0" />
+      <span class="tasks-list-text">
+        <span class="task-description"><span>parent</span></span>
+        <span class="task-due" data-task-due="today" title="Click to edit due date, Right-click for more options">
+          <span>📅 2025-12-01</span>
+        </span>
+      </span>
+      <span class="task-extras">
+        <span class="tasks-backlink">
+          (
+          <a rel="noopener" target="_blank" class="internal-link">/</a>
+          )
+        </span>
+        <a class="tasks-edit" title="Edit task" href="#"></a>
+        <a class="tasks-postpone" title="ℹ️ Due tomorrow, on Tue 2nd Dec (right-click for more options)"></a>
+      </span>
+    </li>
+  </ul>
+  <div class="task-count">1 task</div>
+</div>
+<h2>Filtered results after editing Global Query:</h2>
+
+<p>Results filter: 'parent'</p>
+<!--
+- [ ] parent 📅 2025-12-01
+  - [ ] child 🆔 childID
+-->
+
+<div>
+  <div class="plugin-tasks-toolbar">
+    <label test-icon="lucide-filter">
+      <input placeholder="Filter by description..." test-tooltip="Filter results" />
+    </label>
+    <button test-icon="lucide-copy" test-tooltip="Copy results"></button>
+  </div>
+  <ul class="contains-task-list plugin-tasks-query-result tasks-layout-hide-urgency">
+    <li
+      class="task-list-item plugin-tasks-list-item"
+      data-task-due="today"
+      data-task-priority="normal"
+      data-task=""
+      data-line="0"
+      data-task-status-name="Todo"
+      data-task-status-type="TODO">
+      <input class="task-list-item-checkbox" type="checkbox" data-line="0" />
+      <span class="tasks-list-text">
+        <span class="task-description"><span>parent</span></span>
+        <span class="task-due" data-task-due="today" title="Click to edit due date, Right-click for more options">
+          <span>📅 2025-12-01</span>
+        </span>
+      </span>
+      <span class="task-extras">
+        <span class="tasks-backlink">
+          (
+          <a rel="noopener" target="_blank" class="internal-link">/</a>
+          )
+        </span>
+        <a class="tasks-edit" title="Edit task" href="#"></a>
+        <a class="tasks-postpone" title="ℹ️ Due tomorrow, on Tue 2nd Dec (right-click for more options)"></a>
+      </span>
+    </li>
+  </ul>
+  <div class="task-count">1 task</div>
+</div>

tests/Renderer/QueryResultsRenderer.test.ts

@@ -79,7 +79,7 @@ describe('QueryResultsRenderer - accessing results', () => {
 
         await renderer.render(State.Warm, twoTasks, document.createElement('div'));
 
-        await renderer.applySearchBoxFilter('another', document.createElement('div'));
+        await renderer.applySearchBoxFilterAndRerender('another', document.createElement('div'));
 
         expect(renderer.queryResult.totalTasksCount).toEqual(2);
         expect(renderer.filteredQueryResult.totalTasksCount).toEqual(1);
@@ -171,19 +171,25 @@ class RendererStoryboard {
     }
 
     /**
+     * This simulates QueryRenderer.renderResults()
      * Returns the prettified rendered HTML, to allow 'expect' calls to be added.
      * @param description
      */
-    public async addFrame(description: string): Promise<string> {
-        this.output += `<h2>${description}:</h2>\n\n`;
-
+    public async renderAndAddFrame(description: string) {
         const container = document.createElement('div');
         await this.renderer.render(State.Warm, this.allTasks, container);
 
+        return this.addFrame(description, container);
+    }
+
+    public addFrame(description: string, container: HTMLDivElement) {
+        this.output += `<h2>${description}:</h2>\n\n`;
+        this.output += `<p>Results filter: '${this.renderer.filterString}'</p>\n`;
+
         const { tasksAsMarkdown, prettyHTML } = tasksMarkdownAndPrettifiedHtml(container, this.allTasks);
         this.output += tasksAsMarkdown + prettyHTML;
 
-        return prettyHTML;
+        return { prettyHTML, container };
     }
 
     public verify() {
@@ -203,15 +209,15 @@ describe('QueryResultsRenderer - sequences', () => {
         const dueDate = '📅 2025-12-01';
 
         {
-            const prettyHTML = await storyboard.addFrame('Initial results');
+            const { prettyHTML } = await storyboard.renderAndAddFrame('Initial results');
             expect(prettyHTML).toContain(dueDate);
         }
 
         GlobalQuery.getInstance().set('hide due date');
         storyboard.renderer.rereadQueryFromFile();
 
         {
-            const prettyHTML = await storyboard.addFrame('Check that due date is hidden by global query');
+            const { prettyHTML } = await storyboard.renderAndAddFrame('Check that due date is hidden by global query');
             expect(prettyHTML).not.toContain(dueDate);
         }
 
@@ -224,18 +230,34 @@ describe('QueryResultsRenderer - sequences', () => {
         const urgency = '<span class="tasks-urgency">10.75</span>';
 
         {
-            const prettyHTML = await storyboard.addFrame('Initial results');
+            const { prettyHTML } = await storyboard.renderAndAddFrame('Initial results');
             expect(prettyHTML).not.toContain(urgency);
         }
 
         GlobalQuery.getInstance().set('show urgency');
         storyboard.renderer.rereadQueryFromFile();
 
         {
-            const prettyHTML = await storyboard.addFrame('Check that urgency is shown by global query');
+            const { prettyHTML } = await storyboard.renderAndAddFrame('Check that urgency is shown by global query');
             expect(prettyHTML).toContain(urgency);
         }
 
         storyboard.verify();
     });
+
+    it('rerendered results retain the filter', async () => {
+        const storyboard = new RendererStoryboard('', parentAndChild);
+
+        const { container } = await storyboard.renderAndAddFrame('Initial results');
+
+        await storyboard.renderer.applySearchBoxFilterAndRerender('parent', container);
+        storyboard.addFrame('Filtered results (parent)', container);
+
+        GlobalQuery.getInstance().set('sort by function reverse task.description.length');
+        storyboard.renderer.rereadQueryFromFile();
+
+        await storyboard.renderAndAddFrame('Filtered results after editing Global Query');
+
+        storyboard.verify();
+    });
 });