feat(button): add spinner sizes for ionic theme

core/src/components/button/button.common.scss

@@ -211,10 +211,11 @@
   flex-shrink: 0;
 }
 
-// Button Icons
+// Button Icons & Spinners
 // --------------------------------------------------
 
-::slotted(ion-icon) {
+::slotted(ion-icon),
+::slotted(ion-spinner) {
   pointer-events: none;
 }
 

core/src/components/button/button.ionic.scss

@@ -93,18 +93,6 @@
 // Button Sizes
 // -------------------------------------------------------------------------------
 
-/* Extra Small and Small Button */
-:host(.button-xsmall),
-:host(.button-small) {
-  ::slotted(ion-icon[slot="start"]) {
-    @include globals.margin-horizontal(null, globals.$ion-space-100);
-  }
-
-  ::slotted(ion-icon[slot="end"]) {
-    @include globals.margin-horizontal(globals.$ion-space-100, null);
-  }
-}
-
 /* Extra Small Button */
 :host(.button-xsmall) {
   --padding-top: #{globals.$ion-space-100};
@@ -172,6 +160,25 @@
   aspect-ratio: 1 / 1;
 }
 
+// Button with Spinner
+// -------------------------------------------------------------------------------
+::slotted(ion-spinner) {
+  --color: currentColor;
+}
+
+/* Button containing only a spinner */
+::slotted(ion-spinner[slot="start"]),
+::slotted(ion-spinner[slot="end"]),
+::slotted(ion-spinner[slot="icon-only"]) {
+  width: globals.$ion-space-500;
+  height: globals.$ion-space-500;
+}
+
+:host(.button-xlarge) ::slotted(ion-spinner) {
+  width: globals.$ion-space-600;
+  height: globals.$ion-space-600;
+}
+
 // Button Shapes
 // -------------------------------------------------------------------------------
 
@@ -246,26 +253,40 @@
   font-size: globals.$ion-font-size-500;
 }
 
-:host(.button-small) ::slotted(ion-icon[slot="start"]) {
+:host(.button-xsmall) ::slotted(ion-icon[slot="start"]),
+:host(.button-xsmall) ::slotted(ion-spinner[slot="start"]),
+:host(.button-small) ::slotted(ion-icon[slot="start"]),
+:host(.button-small) ::slotted(ion-spinner[slot="start"]) {
   @include globals.margin-horizontal(null, globals.$ion-space-200);
 }
 
-::slotted(ion-icon[slot="start"]) {
+::slotted(ion-icon[slot="start"]),
+::slotted(ion-spinner[slot="start"]) {
   @include globals.margin-horizontal(null, globals.$ion-space-250);
 }
 
-:host(.button-large) ::slotted(ion-icon[slot="start"]) {
+:host(.button-large) ::slotted(ion-icon[slot="start"]),
+:host(.button-large) ::slotted(ion-spinner[slot="start"]),
+:host(.button-xlarge) ::slotted(ion-icon[slot="start"]),
+:host(.button-xlarge) ::slotted(ion-spinner[slot="start"]) {
   @include globals.margin-horizontal(null, globals.$ion-space-300);
 }
 
-:host(.button-small) ::slotted(ion-icon[slot="end"]) {
+:host(.button-xsmall) ::slotted(ion-icon[slot="end"]),
+:host(.button-xsmall) ::slotted(ion-spinner[slot="end"]),
+:host(.button-small) ::slotted(ion-icon[slot="end"]),
+:host(.button-small) ::slotted(ion-spinner[slot="end"]) {
   @include globals.margin-horizontal(globals.$ion-space-200, null);
 }
 
-::slotted(ion-icon[slot="end"]) {
+::slotted(ion-icon[slot="end"]),
+::slotted(ion-spinner[slot="end"]) {
   @include globals.margin-horizontal(globals.$ion-space-250, null);
 }
 
-:host(.button-large) ::slotted(ion-icon[slot="end"]) {
+:host(.button-large) ::slotted(ion-icon[slot="end"]),
+:host(.button-large) ::slotted(ion-spinner[slot="end"]),
+:host(.button-xlarge) ::slotted(ion-icon[slot="end"]),
+:host(.button-xlarge) ::slotted(ion-spinner[slot="end"]) {
   @include globals.margin-horizontal(globals.$ion-space-300, null);
 }

core/src/components/button/test/spinner/button.e2e.ts

@@ -0,0 +1,14 @@
+import { expect } from '@playwright/test';
+import { configs, test } from '@utils/test/playwright';
+
+configs({ modes: ['ionic-md'], directions: ['ltr'] }).forEach(({ config, screenshot, title }) => {
+  test.describe(title('button: spinner'), () => {
+    test('should not have visual regressions', async ({ page }) => {
+      await page.goto(`/src/components/button/test/spinner`, config);
+
+      await page.setIonViewport();
+
+      await expect(page).toHaveScreenshot(screenshot(`button-spinner`));
+    });
+  });
+});

core/src/components/button/test/spinner/index.html

@@ -0,0 +1,147 @@
+<!DOCTYPE html>
+<html lang="en" dir="ltr">
+  <head>
+    <meta charset="UTF-8" />
+    <title>Button - Spinner</title>
+    <meta
+      name="viewport"
+      content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no"
+    />
+    <link href="../../../../../css/ionic.bundle.css" rel="stylesheet" />
+    <link href="../../../../../scripts/testing/styles.css" rel="stylesheet" />
+    <script src="../../../../../scripts/testing/scripts.js"></script>
+    <script nomodule src="../../../../../dist/ionic/ionic.js"></script>
+    <script type="module" src="../../../../../dist/ionic/ionic.esm.js"></script>
+  </head>
+
+  <body>
+    <ion-app>
+      <ion-header>
+        <ion-toolbar>
+          <ion-title>Button - Spinner</ion-title>
+        </ion-toolbar>
+      </ion-header>
+
+      <ion-content class="ion-padding" id="content" no-bounce>
+        <p>
+          <ion-button>
+            <ion-spinner slot="start"></ion-spinner>
+            Left Spinner
+          </ion-button>
+          <ion-button href="#">
+            <ion-spinner slot="start"></ion-spinner>
+            Left Spinner
+          </ion-button>
+        </p>
+        <p>
+          <ion-button>
+            <ion-spinner name="lines" slot="end"></ion-spinner>
+            Right Spinner
+          </ion-button>
+          <ion-button href="#">
+            <ion-spinner name="lines" slot="end"></ion-spinner>
+            Right Spinner
+          </ion-button>
+        </p>
+        <p>
+          <ion-button>
+            <ion-spinner name="lines-sharp" slot="icon-only"></ion-spinner>
+          </ion-button>
+          <ion-button href="#">
+            <ion-spinner name="lines-sharp" slot="icon-only"></ion-spinner>
+          </ion-button>
+        </p>
+        <p>
+          <ion-button size="large">
+            <ion-spinner name="lines-small" slot="start"></ion-spinner>
+            Left, Large
+          </ion-button>
+          <ion-button size="large" href="#">
+            <ion-spinner name="lines-small" slot="start"></ion-spinner>
+            Left, Large
+          </ion-button>
+        </p>
+        <p>
+          <ion-button size="large">
+            <ion-spinner slot="end"></ion-spinner>
+            Right, Large
+          </ion-button>
+          <ion-button size="large" href="#">
+            <ion-spinner slot="end"></ion-spinner>
+            Right, Large
+          </ion-button>
+        </p>
+        <p>
+          <ion-button size="large">
+            <ion-spinner slot="icon-only"></ion-spinner>
+          </ion-button>
+          <ion-button size="large" href="#">
+            <ion-spinner slot="icon-only"></ion-spinner>
+          </ion-button>
+        </p>
+        <p>
+          <ion-button size="small">
+            <ion-spinner slot="start"></ion-spinner>
+            Left, Small
+          </ion-button>
+          <ion-button size="small" href="#">
+            <ion-spinner slot="start"></ion-spinner>
+            Left, Small
+          </ion-button>
+        </p>
+        <p>
+          <ion-button size="small">
+            <ion-spinner slot="end"></ion-spinner>
+            Right, Small
+          </ion-button>
+          <ion-button size="small" href="#">
+            <ion-spinner slot="end"></ion-spinner>
+            Right, Small
+          </ion-button>
+        </p>
+        <p>
+          <ion-button size="small">
+            <ion-spinner slot="icon-only"></ion-spinner>
+          </ion-button>
+          <ion-button size="small" href="#">
+            <ion-spinner slot="icon-only"></ion-spinner>
+          </ion-button>
+        </p>
+        <p>
+          <ion-button size="xlarge">
+            <ion-spinner slot="start"></ion-spinner>
+            Left, Extra Large
+          </ion-button>
+        </p>
+        <p>
+          <ion-button size="xlarge" href="#">
+            <ion-spinner slot="start"></ion-spinner>
+            Left, Extra Large
+          </ion-button>
+        </p>
+        <p>
+          <ion-button size="xlarge">
+            <ion-spinner slot="end"></ion-spinner>
+            Right, Extra Large
+          </ion-button>
+        </p>
+        <p>
+          <ion-button size="xlarge" href="#">
+            <ion-spinner slot="end"></ion-spinner>
+            Right, Extra Large
+          </ion-button>
+        </p>
+        <p>
+          <ion-button size="xlarge">
+            <ion-spinner slot="icon-only"></ion-spinner>
+          </ion-button>
+        </p>
+        <p>
+          <ion-button size="xlarge" href="#">
+            <ion-spinner slot="icon-only"></ion-spinner>
+          </ion-button>
+        </p>
+      </ion-content>
+    </ion-app>
+  </body>
+</html>

core/src/components/button/test/theme-ionic/index.html

@@ -52,6 +52,14 @@ <h4>Preview options</h4>
             <ion-select-option value="outline">Outline</ion-select-option>
             <ion-select-option value="clear">Clear</ion-select-option>
           </ion-select>
+
+          <ion-select id="select-color" justify="space-between" interface="alert" label="Color" placeholder="">
+            <ion-select-option value="">default</ion-select-option>
+            <ion-select-option value="primary">Primary</ion-select-option>
+            <ion-select-option value="success">Success</ion-select-option>
+            <ion-select-option value="warning">Warning</ion-select-option>
+            <ion-select-option value="neutral">Neutral</ion-select-option>
+          </ion-select>
         </p>
 
         <div id="screenshot-wrapper" class="ion-margin-top">
@@ -86,31 +94,63 @@ <h4>Preview</h4>
             </ion-button>
           </p>
 
+          <p>
+            <ion-button theme="ionic">
+              Button
+              <ion-spinner slot="end" name="lines-small" />
+            </ion-button>
+            <ion-button theme="ionic">
+              <ion-spinner slot="icon-only" name="lines-small"></ion-spinner>
+            </ion-button>
+          </p>
+          <p>
+            <ion-button theme="ionic">
+              Button
+              <ion-spinner slot="start" name="lines-small" />
+            </ion-button>
+          </p>
+
           <h4 class="ion-margin-top">States</h4>
 
           <p>
             <ion-button theme="ionic">Default</ion-button>
+            <ion-button theme="ionic">
+              Button
+              <ion-spinner slot="end" name="lines-small" />
+            </ion-button>
             <ion-button theme="ionic">
               <ion-icon slot="icon-only" name="rocket"></ion-icon>
             </ion-button>
           </p>
 
           <p>
             <ion-button theme="ionic" class="ion-activated">Activated</ion-button>
+            <ion-button theme="ionic" class="ion-activated">
+              Button
+              <ion-spinner slot="end" name="lines-small" />
+            </ion-button>
             <ion-button theme="ionic" class="ion-activated">
               <ion-icon slot="icon-only" name="rocket"></ion-icon>
             </ion-button>
           </p>
 
           <p>
             <ion-button theme="ionic" class="ion-focused">Focused</ion-button>
+            <ion-button theme="ionic" class="ion-focused">
+              Button
+              <ion-spinner slot="end" name="lines-small" />
+            </ion-button>
             <ion-button theme="ionic" class="ion-focused ion-margin-start">
               <ion-icon slot="icon-only" name="rocket"></ion-icon>
             </ion-button>
           </p>
 
           <p>
             <ion-button theme="ionic" disabled="true">Disabled</ion-button>
+            <ion-button theme="ionic" disabled="true">
+              Button
+              <ion-spinner slot="end" name="lines-small" />
+            </ion-button>
             <ion-button theme="ionic" disabled="true">
               <ion-icon slot="icon-only" name="rocket"></ion-icon>
             </ion-button>
@@ -150,6 +190,13 @@ <h4 class="ion-margin-top">States</h4>
           updateAttr(el, 'fill', e.detail.value);
         }
       });
+
+      const selectColor = document.getElementById('select-color');
+      selectColor.addEventListener('ionChange', (e) => {
+        for (const el of listOfBtns) {
+          updateAttr(el, 'color', e.detail.value);
+        }
+      });
     </script>
   </body>
 </html>