fixes #1201

docs/resources/changelog.md

@@ -17,6 +17,7 @@ New versions of Shoelace are released as-needed and generally occur when a criti
 - Fixed a bug in `<sl-tab>` that caused `sl-tab-show` to be emitted when activating the close button
 - Fixed a bug in `<sl-spinner>` that caused `--track-color` to be invisible with certain colors
 - Fixed a bug in `<sl-menu-item>` that caused the focus color to show when selecting menu items with a mouse or touch device
+- Fixed a bug in `<sl-select>` that caused `sl-change` and `sl-input` to be emitted too early [#1201](https://github.com/shoelace-style/shoelace/issues/1201)
 - Updated `@shoelace-style/localize` to 3.1.0
 
 When using `<input type="password">` the default value for `autocapitalize`, `autocomplete`, and `autocorrect` may be affected due to the bug fixed in [#1205](https://github.com/shoelace-style/shoelace/issues/1205). For any affected users, setting these attributes to `off` will restore the previous behavior.

src/components/select/select.test.ts

@@ -162,6 +162,32 @@ describe('<sl-select>', () => {
 
       await el.updateComplete;
     });
+
+    it('should emit sl-change and sl-input with the correct validation message when the value changes', async () => {
+      const el = await fixture<SlSelect>(html`
+        <sl-select required>
+          <sl-option value="option-1">Option 1</sl-option>
+          <sl-option value="option-2">Option 2</sl-option>
+          <sl-option value="option-3">Option 3</sl-option>
+        </sl-select>
+      `);
+      const option2 = el.querySelectorAll('sl-option')[1];
+      const handler = sinon.spy((event: CustomEvent) => {
+        if (el.validationMessage) {
+          expect.fail(`Validation message should be empty when ${event.type} is emitted and a value is set`);
+        }
+      });
+
+      el.addEventListener('sl-change', handler);
+      el.addEventListener('sl-input', handler);
+
+      await clickOnElement(el);
+      await aTimeout(500);
+      await clickOnElement(option2);
+      await el.updateComplete;
+
+      expect(handler).to.be.calledTwice;
+    });
   });
 
   it('should open the listbox when any letter key is pressed with sl-select is on focus', async () => {

src/components/select/select.ts

@@ -253,8 +253,11 @@ export default class SlSelect extends ShoelaceElement implements ShoelaceFormCon
           this.setSelectedOptions(this.currentOption);
         }
 
-        this.emit('sl-input');
-        this.emit('sl-change');
+        // Emit after updating
+        this.updateComplete.then(() => {
+          this.emit('sl-input');
+          this.emit('sl-change');
+        });
 
         if (!this.multiple) {
           this.hide();
@@ -378,9 +381,13 @@ export default class SlSelect extends ShoelaceElement implements ShoelaceFormCon
     if (this.value !== '') {
       this.setSelectedOptions([]);
       this.displayInput.focus({ preventScroll: true });
-      this.emit('sl-clear');
-      this.emit('sl-input');
-      this.emit('sl-change');
+
+      // Emit after update
+      this.updateComplete.then(() => {
+        this.emit('sl-clear');
+        this.emit('sl-input');
+        this.emit('sl-change');
+      });
     }
   }
 
@@ -406,8 +413,11 @@ export default class SlSelect extends ShoelaceElement implements ShoelaceFormCon
       this.updateComplete.then(() => this.displayInput.focus({ preventScroll: true }));
 
       if (this.value !== oldValue) {
-        this.emit('sl-input');
-        this.emit('sl-change');
+        // Emit after updating
+        this.updateComplete.then(() => {
+          this.emit('sl-input');
+          this.emit('sl-change');
+        });
       }
 
       if (!this.multiple) {
@@ -442,8 +452,12 @@ export default class SlSelect extends ShoelaceElement implements ShoelaceFormCon
 
     if (!this.disabled) {
       this.toggleOptionSelection(option, false);
-      this.emit('sl-input');
-      this.emit('sl-change');
+
+      // Emit after updating
+      this.updateComplete.then(() => {
+        this.emit('sl-input');
+        this.emit('sl-change');
+      });
     }
   }