Backport of methods and components added in EBackport of methods and components added in EEE

app/assets/javascripts/lib/utils/text_utility.js

@@ -64,3 +64,12 @@ export const truncate = (string, maxLength) => `${string.substr(0, (maxLength -
 export function capitalizeFirstCharacter(text) {
   return `${text[0].toUpperCase()}${text.slice(1)}`;
 }
+
+/**
+ * Replaces all html tags from a string with the given replacement.
+ *
+ * @param {String} string
+ * @param {*} replace
+ * @returns {String}
+ */
+export const stripeHtml = (string, replace = '') => string.replace(/<[^>]*>/g, replace);

app/assets/javascripts/vue_shared/components/expand_button.vue

+<script>
+  import { __ } from '~/locale';
+  /**
+   * Port of detail_behavior expand button.
+   *
+   * @example
+   * <expand-button>
+   *   <template slot="expanded">
+   *      Text goes here.
+   *    </template>
+   * </expand-button>
+   */
+  export default {
+    name: 'expandButton',
+    data() {
+      return {
+        isCollapsed: true,
+      };
+    },
+    computed: {
+      ariaLabel() {
+        return __('Click to expand text');
+      },
+    },
+    methods: {
+      onClick() {
+        this.isCollapsed = !this.isCollapsed;
+      },
+    },
+  };
+</script>
+<template>
+  <span>
+    <button
+      type="button"
+      v-show="isCollapsed"
+      class="text-expander btn-blank"
+      aria-label="Click to Expand Text"
+      @click="onClick">
+      ...
+    </button>
+    <span v-show="!isCollapsed">
+      <slot name="expanded"></slot>
+    </span>
+  </span>
+</template>

spec/javascripts/lib/utils/text_utility_spec.js

@@ -62,4 +62,14 @@ describe('text_utility', () => {
       expect(textUtils.slugify('João')).toEqual('joão');
     });
   });
+
+  describe('stripeHtml', () => {
+    it('replaces html tag with the default replacement', () => {
+      expect(textUtils.stripeHtml('This is a text with <p>html</p>.')).toEqual('This is a text with html.');
+    });
+
+    it('replaces html tags with the provided replacement', () => {
+      expect(textUtils.stripeHtml('This is a text with <p>html</p>.', ' ')).toEqual('This is a text with  html .');
+    });
+  });
 });

spec/javascripts/vue_shared/components/expand_button_spec.js

+import Vue from 'vue';
+import expandButton from '~/vue_shared/components/expand_button.vue';
+import mountComponent from '../../helpers/vue_mount_component_helper';
+
+describe('expand button', () => {
+  let vm;
+
+  beforeEach(() => {
+    const Component = Vue.extend(expandButton);
+    vm = mountComponent(Component, {
+      slots: {
+        expanded: '<p>Expanded!</p>',
+      },
+    });
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+  });
+
+  it('renders a collpased button', () => {
+    expect(vm.$el.textContent.trim()).toEqual('...');
+  });
+
+  it('hides expander on click', (done) => {
+    vm.$el.querySelector('button').click();
+    vm.$nextTick(() => {
+      expect(vm.$el.querySelector('button').getAttribute('style')).toEqual('display: none;');
+      done();
+    });
+  });
+});