Show merge requests in IDE

Closes #45184

9 files changed, 285 insertions, 15 deletions

diff --git a/app/assets/javascripts/ide/components/ide_side_bar.vue b/app/assets/javascripts/ide/components/ide_side_bar.vue
index 3f980203911..e99305d0bc0 100644
--- a/app/assets/javascripts/ide/components/ide_side_bar.vue
+++ b/app/assets/javascripts/ide/components/ide_side_bar.vue
@@ -13,6 +13,7 @@ import CommitSection from './repo_commit_section.vue';
 import CommitForm from './commit_sidebar/form.vue';
 import IdeReview from './ide_review.vue';
 import SuccessMessage from './commit_sidebar/success_message.vue';
+import MergeRequestDropdown from './merge_requests/dropdown.vue';
 import { activityBarViews } from '../constants';
 
 export default {
@@ -32,6 +33,7 @@ export default {
     CommitForm,
     IdeReview,
     SuccessMessage,
+    MergeRequestDropdown,
   },
   data() {
     return {
@@ -46,6 +48,7 @@ export default {
       'changedFiles',
       'stagedFiles',
       'lastCommitMsg',
+      'currentMergeRequestId',
     ]),
     ...mapGetters(['currentProject', 'someUncommitedChanges']),
     showSuccessMessage() {
@@ -88,9 +91,12 @@ export default {
         </div>
       </template>
       <template v-else>
-        <div class="context-header ide-context-header">
+        <div class="context-header ide-context-header dropdown">
           <a
-            :href="currentProject.web_url"
+            href="#"
+            role="button"
+            @click.prevent
+            data-toggle="dropdown"
           >
             <div
               v-if="currentProject.avatar_url"
@@ -114,19 +120,35 @@ export default {
               <div class="sidebar-context-title">
                 {{ currentProject.name }}
               </div>
-              <div
-                class="sidebar-context-title ide-sidebar-branch-title"
-                ref="branchId"
-                v-tooltip
-                :title="branchTooltipTitle"
-              >
-                <icon
-                  name="branch"
-                  css-classes="append-right-5"
-                />{{ currentBranchId }}
+              <div class="d-flex">
+                <div
+                  class="sidebar-context-title ide-sidebar-branch-title"
+                  ref="branchId"
+                  v-tooltip
+                  :title="branchTooltipTitle"
+                >
+                  <icon
+                    name="branch"
+                    css-classes="append-right-5"
+                  />{{ currentBranchId }}
+                </div>
+                <div
+                  v-if="currentMergeRequestId"
+                  class="sidebar-context-title ide-sidebar-branch-title prepend-left-8"
+                >
+                  <icon
+                    name="git-merge"
+                    css-classes="append-right-5"
+                  />!{{ currentMergeRequestId }}
+                </div>
               </div>
             </div>
+            <icon
+              class="ml-auto"
+              name="chevron-down"
+            />
           </a>
+          <merge-request-dropdown />
         </div>
         <div class="multi-file-commit-panel-inner-scroll">
           <component
diff --git a/app/assets/javascripts/ide/components/merge_requests/dropdown.vue b/app/assets/javascripts/ide/components/merge_requests/dropdown.vue
new file mode 100644
index 00000000000..106f66b764a
--- /dev/null
+++ b/app/assets/javascripts/ide/components/merge_requests/dropdown.vue
@@ -0,0 +1,78 @@
+<script>
+import { mapActions, mapState } from 'vuex';
+import Tabs from '../../../vue_shared/components/tabs/tabs';
+import Tab from '../../../vue_shared/components/tabs/tab.vue';
+import List from './list.vue';
+import { scopes } from '../../stores/modules/merge_requests/constants';
+
+export default {
+  components: {
+    Tabs,
+    Tab,
+    List,
+  },
+  data() {
+    return {
+      activeTabIndex: 0,
+    };
+  },
+  computed: {
+    ...mapState('mergeRequests', ['isLoading', 'mergeRequests']),
+    ...mapState(['currentMergeRequestId']),
+    tabScope() {
+      return this.activeTabIndex === 0 ? scopes.createdByMe : scopes.assignedToMe;
+    },
+  },
+  mounted() {
+    this.fetchMergeRequests();
+  },
+  methods: {
+    ...mapActions('mergeRequests', ['fetchMergeRequests', 'setScope']),
+    updateActiveTab(index) {
+      this.activeTabIndex = index;
+
+      this.setScope(this.tabScope);
+      this.fetchMergeRequests();
+    },
+  },
+};
+</script>
+
+<template>
+  <div class="dropdown-menu">
+    <tabs
+      stop-propagation
+      @changed="updateActiveTab"
+    >
+      <tab
+        :title="__('Created by me')"
+        active
+      >
+        <list
+          v-if="activeTabIndex === 0"
+          :is-loading="isLoading"
+          :items="mergeRequests"
+          :current-id="currentMergeRequestId"
+          @search="fetchMergeRequests"
+        />
+      </tab>
+      <tab :title="__('Assigned to me')">
+        <list
+          v-if="activeTabIndex === 1"
+          :is-loading="isLoading"
+          :items="mergeRequests"
+          :current-id="currentMergeRequestId"
+          @search="fetchMergeRequests"
+        />
+      </tab>
+    </tabs>
+  </div>
+</template>
+
+<style scoped>
+.dropdown-menu {
+  width: 400px;
+  padding: 0;
+  max-height: initial !important;
+}
+</style>
diff --git a/app/assets/javascripts/ide/components/merge_requests/item.vue b/app/assets/javascripts/ide/components/merge_requests/item.vue
new file mode 100644
index 00000000000..11eb5c8b31b
--- /dev/null
+++ b/app/assets/javascripts/ide/components/merge_requests/item.vue
@@ -0,0 +1,59 @@
+<script>
+import Icon from '../../../vue_shared/components/icon.vue';
+
+export default {
+  components: {
+    Icon,
+  },
+  props: {
+    item: {
+      type: Object,
+      required: true,
+    },
+    currentId: {
+      type: String,
+      required: true,
+    },
+  },
+  computed: {
+    isActive() {
+      return this.item.iid === parseInt(this.currentId, 10);
+    },
+    pathWithID() {
+      return `${this.item.projectPathWithNamespace}!${this.item.iid}`;
+    },
+  },
+  methods: {
+    clickItem() {
+      this.$emit('click', this.item);
+    },
+  },
+};
+</script>
+
+<template>
+  <button
+    type="button"
+    class="d-flex align-items-center"
+    @click="clickItem"
+  >
+    <span
+      class="d-flex append-right-default"
+      style="min-width: 18px"
+    >
+      <icon
+        v-if="isActive"
+        name="mobile-issue-close"
+        :size="18"
+      />
+    </span>
+    <span>
+      <strong>
+        {{ item.title }}
+      </strong>
+      <span class="d-block mt-1">
+        {{ pathWithID }}
+      </span>
+    </span>
+  </button>
+</template>
diff --git a/app/assets/javascripts/ide/components/merge_requests/list.vue b/app/assets/javascripts/ide/components/merge_requests/list.vue
new file mode 100644
index 00000000000..04b3848f3e2
--- /dev/null
+++ b/app/assets/javascripts/ide/components/merge_requests/list.vue
@@ -0,0 +1,91 @@
+<script>
+import _ from 'underscore';
+import LoadingIcon from '../../../vue_shared/components/loading_icon.vue';
+import Item from './item.vue';
+
+export default {
+  components: {
+    LoadingIcon,
+    Item,
+  },
+  props: {
+    isLoading: {
+      type: Boolean,
+      required: true,
+    },
+    items: {
+      type: Array,
+      required: true,
+    },
+    currentId: {
+      type: String,
+      required: true,
+    },
+  },
+  data() {
+    return {
+      search: '',
+    };
+  },
+  watch: {
+    isLoading() {
+      this.focusSearch();
+    },
+  },
+  methods: {
+    viewMergeRequest(item) {
+      this.$router.push(`/project/${item.projectPathWithNamespace}/merge_requests/${item.iid}`);
+    },
+    searchMergeRequests: _.debounce(function debounceSearch() {
+      this.$emit('search', this.search);
+    }, 250),
+    focusSearch() {
+      if (!this.isLoading) {
+        this.$nextTick(() => {
+          this.$refs.searchInput.focus();
+        });
+      }
+    },
+  },
+};
+</script>
+
+<template>
+  <div>
+    <loading-icon
+      class="mt-3 mb-3"
+      v-if="isLoading"
+      size="2"
+    />
+    <template v-else>
+      <div class="dropdown-input mt-3 pb-3 mb-3 border-bottom">
+        <input
+          type="search"
+          class="dropdown-input-field"
+          placeholder="Search merge requests"
+          v-model="search"
+          @input="searchMergeRequests"
+          ref="searchInput"
+        />
+        <i
+          aria-hidden="true"
+          class="fa fa-search dropdown-input-search"
+        ></i>
+      </div>
+      <div class="dropdown-content">
+        <ul class="mb-3">
+          <li
+            v-for="item in items"
+            :key="item.id"
+          >
+            <item
+              :item="item"
+              :current-id="currentId"
+              @click="viewMergeRequest"
+            />
+          </li>
+        </ul>
+      </div>
+    </template>
+  </div>
+</template>
diff --git a/app/assets/javascripts/ide/stores/modules/merge_requests/actions.js b/app/assets/javascripts/ide/stores/modules/merge_requests/actions.js
index d3050183bd3..2b32c0c0b55 100644
--- a/app/assets/javascripts/ide/stores/modules/merge_requests/actions.js
+++ b/app/assets/javascripts/ide/stores/modules/merge_requests/actions.js
@@ -22,4 +22,6 @@ export const fetchMergeRequests = ({ dispatch, state: { scope, state } }, search
 
 export const resetMergeRequests = ({ commit }) => commit(types.RESET_MERGE_REQUESTS);
 
+export const setScope = ({ commit }, scope) => commit(types.SET_SCOPE, scope);
+
 export default () => {};
diff --git a/app/assets/javascripts/ide/stores/modules/merge_requests/mutation_types.js b/app/assets/javascripts/ide/stores/modules/merge_requests/mutation_types.js
index 0badddcbae7..6d163491209 100644
--- a/app/assets/javascripts/ide/stores/modules/merge_requests/mutation_types.js
+++ b/app/assets/javascripts/ide/stores/modules/merge_requests/mutation_types.js
@@ -3,3 +3,5 @@ export const RECEIVE_MERGE_REQUESTS_ERROR = 'RECEIVE_MERGE_REQUESTS_ERROR';
 export const RECEIVE_MERGE_REQUESTS_SUCCESS = 'RECEIVE_MERGE_REQUESTS_SUCCESS';
 
 export const RESET_MERGE_REQUESTS = 'RESET_MERGE_REQUESTS';
+
+export const SET_SCOPE = 'SET_SCOPE';
diff --git a/app/assets/javascripts/ide/stores/modules/merge_requests/mutations.js b/app/assets/javascripts/ide/stores/modules/merge_requests/mutations.js
index 98102a68e08..5c0c502b0d1 100644
--- a/app/assets/javascripts/ide/stores/modules/merge_requests/mutations.js
+++ b/app/assets/javascripts/ide/stores/modules/merge_requests/mutations.js
@@ -23,4 +23,7 @@ export default {
   [types.RESET_MERGE_REQUESTS](state) {
     state.mergeRequests = [];
   },
+  [types.SET_SCOPE](state, scope) {
+    state.scope = scope;
+  },
 };
diff --git a/app/assets/javascripts/ide/stores/modules/merge_requests/state.js b/app/assets/javascripts/ide/stores/modules/merge_requests/state.js
index 2947b686c1c..64ca24b1af6 100644
--- a/app/assets/javascripts/ide/stores/modules/merge_requests/state.js
+++ b/app/assets/javascripts/ide/stores/modules/merge_requests/state.js
@@ -3,6 +3,6 @@ import { scopes, states } from './constants';
 export default () => ({
   isLoading: false,
   mergeRequests: [],
-  scope: scopes.assignedToMe,
+  scope: scopes.createdByMe,
   state: states.opened,
 });
diff --git a/app/assets/javascripts/vue_shared/components/tabs/tabs.js b/app/assets/javascripts/vue_shared/components/tabs/tabs.js
index 4362264caa5..8497c3e851f 100644
--- a/app/assets/javascripts/vue_shared/components/tabs/tabs.js
+++ b/app/assets/javascripts/vue_shared/components/tabs/tabs.js
@@ -1,4 +1,11 @@
 export default {
+  props: {
+    stopPropagation: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
+  },
   data() {
     return {
       currentIndex: 0,
@@ -13,11 +20,17 @@ export default {
       this.tabs = this.$children.filter(child => child.isTab);
       this.currentIndex = this.tabs.findIndex(tab => tab.localActive);
     },
-    setTab(index) {
+    setTab(e, index) {
+      if (this.stopPropagation) {
+        e.stopPropagation();
+      }
+
       this.tabs[this.currentIndex].localActive = false;
       this.tabs[index].localActive = true;
 
       this.currentIndex = index;
+
+      this.$emit('changed', this.currentIndex);
     },
   },
   render(h) {
@@ -36,7 +49,7 @@ export default {
                 href: '#',
               },
               on: {
-                click: () => this.setTab(i),
+                click: e => this.setTab(e, i),
               },
             },
             tab.$slots.title || tab.title,