Support diving into one status in a conversation

src/components/conversation/conversation.js

@@ -2,6 +2,17 @@ import { reduce, filter, findIndex, clone, get } from 'lodash'
 import Status from '../status/status.vue'
 import ThreadTree from '../thread_tree/thread_tree.vue'
 
+import { library } from '@fortawesome/fontawesome-svg-core'
+import {
+  faAngleDoubleDown,
+  faAngleDoubleLeft
+} from '@fortawesome/free-solid-svg-icons'
+
+library.add(
+  faAngleDoubleDown,
+  faAngleDoubleLeft
+)
+
 // const debug = console.log
 const debug = () => {}
 
@@ -41,7 +52,8 @@ const conversation = {
       highlight: null,
       expanded: false,
       threadDisplayStatusObject: {}, // id => 'showing' | 'hidden'
-      statusContentPropertiesObject: {}
+      statusContentPropertiesObject: {},
+      diveRoot: null
     }
   },
   props: [
@@ -195,6 +207,18 @@ const conversation = {
       debug("toplevel =", topLevel)
       return topLevel
     },
+    showingTopLevel () {
+      if (this.diveRoot) {
+        return [this.conversation.filter(k => this.diveRoot === k.id)[0]]
+      }
+      return this.topLevel
+    },
+    diveDepth () {
+      return this.diveRoot ? this.depths[this.diveRoot] : 0
+    },
+    diveMode () {
+      return !!this.diveRoot
+    },
     replies () {
       let i = 1
       // eslint-disable-next-line camelcase
@@ -359,6 +383,12 @@ const conversation = {
     },
     toggleStatusContentProperty (id, name) {
       this.setStatusContentProperty(id, name, !this.statusContentProperties[id][name])
+    },
+    diveIntoStatus (id) {
+      this.diveRoot = id
+    },
+    undive () {
+      this.diveRoot = null
     }
   }
 }

src/components/conversation/conversation.vue

@@ -18,9 +18,22 @@
         {{ $t('timeline.collapse') }}
       </button>
     </div>
+    <div
+      v-if="diveMode"
+      class="conversation-undive-box"
+    >
+      <i18n
+        path="status.show_all_conversation"
+        tag="button"
+        class="button-unstyled -link"
+        @click.prevent="undive"
+      >
+        <FAIcon icon="angle-double-left" />
+      </i18n>
+    </div>
     <div v-if="isTreeView">
       <thread-tree
-        v-for="status in topLevel"
+        v-for="status in showingTopLevel"
         :key="status.id"
         ref="statusComponent"
         :depth="0"
@@ -47,6 +60,7 @@
         :status-content-properties="statusContentProperties"
         :set-status-content-property="setStatusContentProperty"
         :toggle-status-content-property="toggleStatusContentProperty"
+        :dive="diveIntoStatus"
       />
     </div>
     <div v-if="isLinearView">
@@ -65,6 +79,16 @@
         :in-profile="inProfile"
         :profile-user-id="profileUserId"
         class="conversation-status status-fadein panel-body"
+
+        :toggle-thread-display="toggleThreadDisplay"
+        :thread-display-status="threadDisplayStatus"
+        :show-thread-recursively="showThreadRecursively"
+        :total-reply-count="totalReplyCount"
+        :total-reply-depth="totalReplyDepth"
+        :status-content-properties="statusContentProperties"
+        :set-status-content-property="setStatusContentProperty"
+        :toggle-status-content-property="toggleStatusContentProperty"
+
         @goto="setHighlight"
         @toggleExpanded="toggleExpanded"
       />
@@ -82,6 +106,10 @@
 @import '../../_variables.scss';
 
 .Conversation {
+  .conversation-undive-box {
+    padding: 1em;
+  }
+  .conversation-undive-box,
   .conversation-status {
     border-bottom-width: 1px;
     border-bottom-style: solid;

src/components/status/status.js

@@ -36,8 +36,9 @@ import {
   faEyeSlash,
   faEye,
   faThumbtack,
-  faAngleDoubleUp,
+  faChevronUp,
-  faAngleDoubleDown
+  faChevronDown,
+  faAngleDoubleRight
 } from '@fortawesome/free-solid-svg-icons'
 
 library.add(
@@ -55,8 +56,9 @@ library.add(
   faEyeSlash,
   faEye,
   faThumbtack,
-  faAngleDoubleUp,
+  faChevronUp,
-  faAngleDoubleDown
+  faChevronDown,
+  faAngleDoubleRight
 )
 
 const Status = {
@@ -103,7 +105,8 @@ const Status = {
     'controlledExpandingSubject',
     'controlledToggleExpandingSubject',
     'controlledShowingLongSubject',
-    'controlledToggleShowingLongSubject'
+    'controlledToggleShowingLongSubject',
+    'dive'
   ],
   data () {
     return {

src/components/status/status.vue

@@ -229,7 +229,19 @@
                   <FAIcon
                     fixed-width
                     class="fa-scale-110"
-                    :icon="threadShowing ? 'angle-double-up' : 'angle-double-down'"
+                    :icon="threadShowing ? 'chevron-up' : 'chevron-down'"
+                  />
+                </button>
+                <button
+                  v-if="dive"
+                  class="button-unstyled"
+                  :title="$t('status.show_only_conversation_under_this')"
+                  @click.prevent="dive"
+                >
+                  <FAIcon
+                    fixed-width
+                    class="fa-scale-110"
+                    :icon="'angle-double-right'"
                   />
                 </button>
               </span>

src/components/thread_tree/thread_tree.js

@@ -31,7 +31,8 @@ const ThreadTree = {
     totalReplyDepth: Object,
     statusContentProperties: Object,
     setStatusContentProperty: Function,
-    toggleStatusContentProperty: Function
+    toggleStatusContentProperty: Function,
+    dive: Function
   },
   computed: {
     reverseLookupTable () {

src/components/thread_tree/thread_tree.vue

@@ -24,6 +24,7 @@
       :controlled-toggle-showing-tall="() => toggleCurrentProp('ShowingTall')"
       :controlled-toggle-expanding-subject="() => toggleCurrentProp('expandingSubject')"
       :controlled-toggle-showing-long-subject="() => toggleCurrentProp('showingLongSubject')"
+      :dive="dive ? () => dive(status.id) : undefined"
 
       @goto="setHighlight"
       @toggleExpanded="toggleExpanded"
@@ -60,18 +61,24 @@
         :status-content-properties="statusContentProperties"
         :set-status-content-property="setStatusContentProperty"
         :toggle-status-content-property="toggleStatusContentProperty"
+        :dive="dive"
       />
     </div>
     <div
       v-if="currentReplies.length && !threadShowing"
       class="thread-tree-replies thread-tree-replies-hidden"
     >
-      <button
+      <i18n
+        tag="button"
+        path="status.thread_show_full_with_icon"
         class="button-unstyled -link thread-tree-show-replies-button"
-        @click="showThreadRecursively(status.id)"
+        @click.prevent="showThreadRecursively(status.id)"
       >
+        <FAIcon place="icon" icon="angle-double-down" />
+        <span place="text">
           {{ $tc('status.thread_show_full', totalReplyCount[status.id], { numStatus: totalReplyCount[status.id], depth: totalReplyDepth[status.id] }) }}
-      </button>
+        </span>
+      </i18n>
     </div>
   </div>
 </template>