From 2b1e7f7dac0fa5d7bb3bdf415cec1b3c67ed77b0 Mon Sep 17 00:00:00 2001
From: GitLab Bot <gitlab-bot@gitlab.com>
Date: Tue, 27 Oct 2020 15:08:39 +0000
Subject: Add latest changes from gitlab-org/gitlab@master

---
 .../javascripts/popovers/components/popovers.vue   | 92 ++++++++++++++++++++++
 app/assets/javascripts/popovers/index.js           | 51 ++++++++++++
 2 files changed, 143 insertions(+)
 create mode 100644 app/assets/javascripts/popovers/components/popovers.vue
 create mode 100644 app/assets/javascripts/popovers/index.js

(limited to 'app/assets/javascripts/popovers')

diff --git a/app/assets/javascripts/popovers/components/popovers.vue b/app/assets/javascripts/popovers/components/popovers.vue
new file mode 100644
index 00000000000..3bb6d284264
--- /dev/null
+++ b/app/assets/javascripts/popovers/components/popovers.vue
@@ -0,0 +1,92 @@
+<script>
+// We can't use v-safe-html here as the popover's title or content might contains SVGs that would
+// be stripped by the directive's sanitizer. Instead, we fallback on v-html and we use GitLab's
+// dompurify config that lets SVGs be rendered properly.
+// Context: https://gitlab.com/gitlab-org/gitlab/-/issues/247207
+/* eslint-disable vue/no-v-html */
+import { GlPopover } from '@gitlab/ui';
+import { sanitize } from '~/lib/dompurify';
+
+const newPopover = element => {
+  const { content, html, placement, title, triggers = 'focus' } = element.dataset;
+
+  return {
+    target: element,
+    content,
+    html,
+    placement,
+    title,
+    triggers,
+  };
+};
+
+export default {
+  components: {
+    GlPopover,
+  },
+  data() {
+    return {
+      popovers: [],
+    };
+  },
+  created() {
+    this.observer = new MutationObserver(mutations => {
+      mutations.forEach(mutation => {
+        mutation.removedNodes.forEach(this.dispose);
+      });
+    });
+  },
+  beforeDestroy() {
+    this.observer.disconnect();
+  },
+  methods: {
+    addPopovers(elements) {
+      const newPopovers = elements.reduce((acc, element) => {
+        if (this.popoverExists(element)) {
+          return acc;
+        }
+        const popover = newPopover(element);
+        this.observe(popover);
+        return [...acc, popover];
+      }, []);
+
+      this.popovers.push(...newPopovers);
+    },
+    observe(popover) {
+      this.observer.observe(popover.target.parentElement, {
+        childList: true,
+      });
+    },
+    dispose(target) {
+      if (!target) {
+        this.popovers = [];
+      } else {
+        const index = this.popovers.findIndex(popover => popover.target === target);
+
+        if (index > -1) {
+          this.popovers.splice(index, 1);
+        }
+      }
+    },
+    popoverExists(element) {
+      return this.popovers.some(popover => popover.target === element);
+    },
+    getSafeHtml(html) {
+      return sanitize(html);
+    },
+  },
+};
+</script>
+
+<template>
+  <div>
+    <gl-popover v-for="(popover, index) in popovers" :key="index" v-bind="popover">
+      <template #title>
+        <span v-if="popover.html" v-html="getSafeHtml(popover.title)"></span>
+        <span v-else>{{ popover.title }}</span>
+      </template>
+      <span v-if="popover.html" v-html="getSafeHtml(popover.content)"></span>
+      <span v-else>{{ popover.content }}</span>
+    </gl-popover>
+  </div>
+</template>
diff --git a/app/assets/javascripts/popovers/index.js b/app/assets/javascripts/popovers/index.js
new file mode 100644
index 00000000000..bfb61f02a3a
--- /dev/null
+++ b/app/assets/javascripts/popovers/index.js
@@ -0,0 +1,51 @@
+import Vue from 'vue';
+import { toArray } from 'lodash';
+import PopoversComponent from './components/popovers.vue';
+
+let app;
+
+const APP_ELEMENT_ID = 'gl-popovers-app';
+
+const getPopoversApp = () => {
+  if (!app) {
+    const container = document.createElement('div');
+    container.setAttribute('id', APP_ELEMENT_ID);
+    document.body.appendChild(container);
+
+    const Popovers = Vue.extend(PopoversComponent);
+    app = new Popovers();
+    app.$mount(`#${APP_ELEMENT_ID}`);
+  }
+
+  return app;
+};
+
+const isPopover = (node, selector) => node.matches && node.matches(selector);
+
+const handlePopoverEvent = (rootTarget, e, selector) => {
+  for (let { target } = e; target && target !== rootTarget; target = target.parentNode) {
+    if (isPopover(target, selector)) {
+      getPopoversApp().addPopovers([target]);
+      break;
+    }
+  }
+};
+
+export const initPopovers = () => {
+  ['mouseenter', 'focus', 'click'].forEach(event => {
+    document.addEventListener(
+      event,
+      e => handlePopoverEvent(document, e, '[data-toggle="popover"]'),
+      true,
+    );
+  });
+
+  return getPopoversApp();
+};
+
+export const dispose = elements => toArray(elements).forEach(getPopoversApp().dispose);
+
+export const destroy = () => {
+  getPopoversApp().$destroy();
+  app = null;
+};
-- 
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