[EuiAccordion] Added isDisabled to disable interaction and subdue trigger

src-docs/src/views/accordion/accordion_disabled.tsx

@@ -0,0 +1,41 @@
+import React, { useState } from 'react';
+
+import {
+  EuiAccordion,
+  EuiFieldPassword,
+  EuiFormRow,
+  EuiPanel,
+  useGeneratedHtmlId,
+} from '../../../../src';
+
+export default () => {
+  const [passwordValue, setPasswordValue] = useState('');
+  const disabledAccordionId = useGeneratedHtmlId({
+    prefix: 'disabledAccordion',
+  });
+
+  const isInvalid = passwordValue === '';
+
+  return (
+    <EuiAccordion
+      id={disabledAccordionId}
+      buttonContent="Security settings"
+      isDisabled={isInvalid}
+      initialIsOpen={true}
+    >
+      <EuiPanel color="subdued">
+        <EuiFormRow
+          label="Password"
+          isInvalid={isInvalid}
+          error={['You must enter your password to save these changes.']}
+        >
+          <EuiFieldPassword
+            isInvalid={isInvalid}
+            defaultValue={passwordValue}
+            onChange={(v) => setPasswordValue(v.currentTarget.value)}
+          />
+        </EuiFormRow>
+      </EuiPanel>
+    </EuiAccordion>
+  );
+};

src-docs/src/views/accordion/accordion_example.js

@@ -89,6 +89,9 @@ const accordionIsLoadingSnippet = [
 import AccordionButtonElement from './accordion_buttonElement';
 const accordionButtonElementSource = require('!!raw-loader!./accordion_buttonElement');
 
+import AccordionDisabled from './accordion_disabled';
+const accordionDisabledSource = require('!!raw-loader!./accordion_disabled');
+
 export const AccordionExample = {
   title: 'Accordion',
   intro: (
@@ -314,6 +317,53 @@ export const AccordionExample = {
       snippet: accordionIsLoadingSnippet,
       demo: <AccordionIsLoading />,
     },
+    {
+      title: 'Disabled state',
+      source: [
+        {
+          type: GuideSectionTypes.JS,
+          code: accordionDisabledSource,
+        },
+      ],
+      text: (
+        <>
+          <p>
+            In some cases you might want to prevent the user from closing the{' '}
+            <strong>EuiAccordion</strong>. For example, if a form field is
+            displaying an error, opening the accordion and preventing its
+            closure until the error has been addressed will help the user find
+            and fix the error.
+          </p>
+          <p>
+            The <EuiCode>isDisabled</EuiCode> prop will disable interaction on
+            the button and the arrow. Use it in conjunction with{' '}
+            <EuiCode>initialIsOpen</EuiCode> to achieve the desired effect.
+          </p>
+          <EuiCallOut
+            color="warning"
+            iconType="accessibility"
+            title={
+              <>
+                When disabling the interaction of accordions based on user
+                input, it&apos;s advisable to ensure there is further
+                explanation through the use of help or error text.
+              </>
+            }
+          />
+        </>
+      ),
+      demo: <AccordionDisabled />,
+      props: { EuiAccordion },
+      snippet: `<EuiAccordion
+  id={accordionId5}
+  buttonContent="Clickable title"
+  isDisabled={true}
+  initialIsOpen={true}
+  >
+    <!-- Content to show when expanded -->
+</EuiAccordion>
+`,
+    },
     {
       title: 'When content changes dynamically',
       source: [

src-docs/src/views/accordion/playground.js

@@ -21,6 +21,11 @@ export const accordionConfig = () => {
     type: PropTypes.String,
   };
 
+  propsToUse.buttonElement = {
+    ...propsToUse.buttonElement,
+    defaultValue: 'button',
+  };
+
   propsToUse.id = {
     ...propsToUse.id,
     value: htmlIdGenerator('generated')(),

src/components/accordion/__snapshots__/accordion.test.tsx.snap

@@ -8,7 +8,7 @@ exports[`EuiAccordion behavior closes when clicked twice 1`] = `
     class="euiAccordion__triggerWrapper emotion-euiAccordion__triggerWrapper"
   >
     <button
-      aria-controls="18"
+      aria-controls="20"
       aria-expanded="false"
       aria-labelledby="generated-id"
       class="euiButtonIcon euiButtonIcon--text euiButtonIcon--empty euiButtonIcon--xSmall euiAccordion__iconButton emotion-euiAccordion__iconButton"
@@ -23,7 +23,7 @@ exports[`EuiAccordion behavior closes when clicked twice 1`] = `
       />
     </button>
     <button
-      aria-controls="18"
+      aria-controls="20"
       aria-expanded="false"
       class="euiAccordion__button emotion-euiAccordion__button"
       id="generated-id"
@@ -37,7 +37,7 @@ exports[`EuiAccordion behavior closes when clicked twice 1`] = `
   <div
     aria-labelledby="generated-id"
     class="euiAccordion__childWrapper emotion-euiAccordion__childWrapper"
-    id="18"
+    id="20"
     role="region"
     tabindex="-1"
   >
@@ -54,6 +54,62 @@ exports[`EuiAccordion behavior closes when clicked twice 1`] = `
 </div>
 `;
 
+exports[`EuiAccordion behavior does not open when isDisabled 1`] = `
+<div
+  class="euiAccordion"
+>
+  <div
+    class="euiAccordion__triggerWrapper emotion-euiAccordion__triggerWrapper"
+  >
+    <button
+      aria-controls="18"
+      aria-expanded="false"
+      aria-labelledby="generated-id"
+      class="euiButtonIcon euiButtonIcon-isDisabled euiButtonIcon--text euiButtonIcon--empty euiButtonIcon--xSmall euiAccordion__iconButton emotion-euiAccordion__iconButton"
+      disabled=""
+      tabindex="-1"
+      type="button"
+    >
+      <span
+        aria-hidden="true"
+        class="euiButtonIcon__icon"
+        color="inherit"
+        data-euiicon-type="arrowRight"
+      />
+    </button>
+    <button
+      aria-controls="18"
+      aria-expanded="false"
+      class="euiAccordion__button emotion-euiAccordion__button-disabled"
+      disabled=""
+      id="generated-id"
+      type="button"
+    >
+      <span
+        class="euiAccordion__buttonContent"
+      />
+    </button>
+  </div>
+  <div
+    aria-labelledby="generated-id"
+    class="euiAccordion__childWrapper emotion-euiAccordion__childWrapper"
+    id="18"
+    role="region"
+    tabindex="-1"
+  >
+    <div>
+      <div
+        class=" emotion-euiAccordion__children"
+      >
+        <p>
+          You cannot see me.
+        </p>
+      </div>
+    </div>
+  </div>
+</div>
+`;
+
 exports[`EuiAccordion behavior opens when clicked once 1`] = `
 <div
   class="euiAccordion euiAccordion-isOpen"
@@ -62,7 +118,7 @@ exports[`EuiAccordion behavior opens when clicked once 1`] = `
     class="euiAccordion__triggerWrapper emotion-euiAccordion__triggerWrapper"
   >
     <button
-      aria-controls="16"
+      aria-controls="17"
       aria-expanded="true"
       aria-labelledby="generated-id"
       class="euiButtonIcon euiButtonIcon--text euiButtonIcon--empty euiButtonIcon--xSmall euiAccordion__iconButton euiAccordion__iconButton-isOpen emotion-euiAccordion__iconButton-isOpen"
@@ -77,7 +133,7 @@ exports[`EuiAccordion behavior opens when clicked once 1`] = `
       />
     </button>
     <button
-      aria-controls="16"
+      aria-controls="17"
       aria-expanded="true"
       class="euiAccordion__button emotion-euiAccordion__button"
       id="generated-id"
@@ -91,7 +147,7 @@ exports[`EuiAccordion behavior opens when clicked once 1`] = `
   <div
     aria-labelledby="generated-id"
     class="euiAccordion__childWrapper emotion-euiAccordion__childWrapper-isOpen"
-    id="16"
+    id="17"
     role="region"
     tabindex="-1"
   >
@@ -116,7 +172,7 @@ exports[`EuiAccordion behavior opens when div is clicked if element is a div 1`]
     class="euiAccordion__triggerWrapper emotion-euiAccordion__triggerWrapper"
   >
     <button
-      aria-controls="17"
+      aria-controls="19"
       aria-expanded="true"
       aria-labelledby="generated-id"
       class="euiButtonIcon euiButtonIcon--text euiButtonIcon--empty euiButtonIcon--xSmall euiAccordion__iconButton euiAccordion__iconButton-isOpen emotion-euiAccordion__iconButton-isOpen"
@@ -131,7 +187,7 @@ exports[`EuiAccordion behavior opens when div is clicked if element is a div 1`]
       />
     </button>
     <button
-      aria-controls="17"
+      aria-controls="19"
       aria-expanded="true"
       class="euiAccordion__button emotion-euiAccordion__button"
       id="generated-id"
@@ -145,7 +201,7 @@ exports[`EuiAccordion behavior opens when div is clicked if element is a div 1`]
   <div
     aria-labelledby="generated-id"
     class="euiAccordion__childWrapper emotion-euiAccordion__childWrapper-isOpen"
-    id="17"
+    id="19"
     role="region"
     tabindex="-1"
   >
@@ -214,6 +270,58 @@ exports[`EuiAccordion is rendered 1`] = `
 </div>
 `;
 
+exports[`EuiAccordion isDisabled is rendered 1`] = `
+<div
+  class="euiAccordion"
+>
+  <div
+    class="euiAccordion__triggerWrapper emotion-euiAccordion__triggerWrapper"
+  >
+    <button
+      aria-controls="16"
+      aria-expanded="false"
+      aria-labelledby="generated-id"
+      class="euiButtonIcon euiButtonIcon-isDisabled euiButtonIcon--text euiButtonIcon--empty euiButtonIcon--xSmall euiAccordion__iconButton emotion-euiAccordion__iconButton"
+      disabled=""
+      tabindex="-1"
+      type="button"
+    >
+      <span
+        aria-hidden="true"
+        class="euiButtonIcon__icon"
+        color="inherit"
+        data-euiicon-type="arrowRight"
+      />
+    </button>
+    <button
+      aria-controls="16"
+      aria-expanded="false"
+      class="euiAccordion__button emotion-euiAccordion__button-disabled"
+      disabled=""
+      id="generated-id"
+      type="button"
+    >
+      <span
+        class="euiAccordion__buttonContent"
+      />
+    </button>
+  </div>
+  <div
+    aria-labelledby="generated-id"
+    class="euiAccordion__childWrapper emotion-euiAccordion__childWrapper"
+    id="16"
+    role="region"
+    tabindex="-1"
+  >
+    <div>
+      <div
+        class=" emotion-euiAccordion__children"
+      />
+    </div>
+  </div>
+</div>
+`;
+
 exports[`EuiAccordion props arrowDisplay none is rendered 1`] = `
 <div
   class="euiAccordion"

src/components/accordion/accordion.styles.ts

@@ -28,6 +28,17 @@ export const euiAccordionButtonStyles = (euiThemeContext: UseEuiTheme) => {
         text-decoration: underline;
       }
     `,
+
+    // Triggering button needs separate `disabled` key because the element that renders may not support `:disabled`;
+    // Hover pseudo selector for specificity
+    disabled: css`
+      &,
+      &:hover {
+        cursor: not-allowed;
+        color: ${euiTheme.colors.disabledText};
+        text-decoration: none;
+      }
+    `,
   };
 };
 

src/components/accordion/accordion.test.tsx

@@ -188,6 +188,14 @@ describe('EuiAccordion', () => {
     });
   });
 
+  describe('isDisabled', () => {
+    it('is rendered', () => {
+      const component = render(<EuiAccordion id={getId()} isDisabled />);
+
+      expect(component).toMatchSnapshot();
+    });
+  });
+
   describe('behavior', () => {
     it('opens when clicked once', () => {
       const component = mount(
@@ -201,6 +209,18 @@ describe('EuiAccordion', () => {
       expect(component.render()).toMatchSnapshot();
     });
 
+    it('does not open when isDisabled', () => {
+      const component = mount(
+        <EuiAccordion id={getId()} isDisabled>
+          <p>You cannot see me.</p>
+        </EuiAccordion>
+      );
+
+      component.find('button').at(0).simulate('click');
+
+      expect(component.render()).toMatchSnapshot();
+    });
+
     it('opens when div is clicked if element is a div', () => {
       const component = mount(
         <EuiAccordion id={getId()} element="div">