Extensibility: discussion list params

Also give the root controller the name of the current route so they can
easily route back to it

js/forum/src/components/discussion-list.js

@@ -16,19 +16,30 @@ export default class DiscussionList extends Component {
     this.loading = m.prop(true);
     this.moreResults = m.prop(false);
     this.discussions = m.prop([]);
-    this.sort = m.prop(this.props.sort || 'recent');
-    this.sortOptions = m.prop([
-      {key: 'recent', value: 'Recent', sort: 'recent'},
-      {key: 'replies', value: 'Replies', sort: '-replies'},
-      {key: 'newest', value: 'Newest', sort: '-created'},
-      {key: 'oldest', value: 'Oldest', sort: 'created'}
-    ]);
 
     this.refresh();
 
     app.session.on('loggedIn', this.loggedInHandler = this.refresh.bind(this))
   }
 
+  params() {
+    var params = {};
+    for (var i in this.props.params) {
+      params[i] = this.props.params[i];
+    }
+    params.sort = this.sortMap()[params.sort];
+    return params;
+  }
+
+  sortMap() {
+    return {
+      recent: 'recent',
+      replies: '-replies',
+      newest: '-created',
+      oldest: 'created'
+    };
+  }
+
   refresh() {
     m.startComputation();
     this.loading(true);
@@ -42,26 +53,16 @@ export default class DiscussionList extends Component {
   }
 
   terminalPostType() {
-    return ['newest', 'oldest'].indexOf(this.sort()) !== -1 ? 'start' : 'last'
+    return ['newest', 'oldest'].indexOf(this.props.sort) !== -1 ? 'start' : 'last'
   }
 
   countType() {
-    return this.sort() === 'replies' ? 'replies' : 'unread';
+    return this.props.sort === 'replies' ? 'replies' : 'unread';
   }
 
   loadResults(start) {
-    var self = this;
+    var params = this.params();
-
+    params.start = start;
-    var sort = this.sortOptions()[0].sort;
-    this.sortOptions().some(function(option) {
-      if (option.key === self.sort()) {
-        sort = option.sort;
-        return true;
-      }
-    });
-
-    var params = {sort, start};
-
     return app.store.find('discussions', params);
   }
 
@@ -97,10 +98,10 @@ export default class DiscussionList extends Component {
   view() {
     return m('div', [
       m('ul.discussions-list', [
-        this.discussions().map(function(discussion) {
+        this.discussions().map(discussion => {
           var startUser = discussion.startUser()
           var isUnread = discussion.isUnread()
-          var displayUnread = this.props.countType !== 'replies' && isUnread
+          var displayUnread = this.countType() !== 'replies' && isUnread
           var jumpTo = Math.min(discussion.lastPostNumber(), (discussion.readNumber() || 0) + 1)
 
           var controls = discussion.controls(this).toArray();
@@ -135,7 +136,7 @@ export default class DiscussionList extends Component {
               m('span.label', displayUnread ? 'unread' : 'replies')
             ])
           ])
-        }.bind(this))
+        })
       ]),
       this.loading()
         ? LoadingIndicator.component()
@@ -159,7 +160,7 @@ export default class DiscussionList extends Component {
     items.add('terminalPost',
       TerminalPost.component({
         discussion,
-        lastPost: this.props.terminalPostType !== 'start'
+        lastPost: this.terminalPostType() !== 'start'
       })
     );
 

js/forum/src/components/index-page.js

@@ -18,15 +18,17 @@ export default class IndexPage extends Component {
   constructor(props) {
     super(props);
 
+    var params = this.params();
     if (app.cache.discussionList) {
-      if (app.cache.discussionList.props.sort !== m.route.param('sort')) {
+      Object.keys(params).some(key => {
+        if (app.cache.discussionList.props.params[key] !== params[key]) {
           app.cache.discussionList = null;
+          return true;
         }
+      });
     }
     if (!app.cache.discussionList) {
-      app.cache.discussionList = new DiscussionList({
+      app.cache.discussionList = new DiscussionList({params});
-        sort: m.route.param('sort')
-      });
     }
 
     app.history.push('index');
@@ -34,10 +36,34 @@ export default class IndexPage extends Component {
     app.composer.minimize();
   }
 
+  /**
+    Params that stick between filter changes
+   */
+  stickyParams() {
+    return {
+      sort: m.route.param('sort'),
+      show: m.route.param('show'),
+      q: m.route.param('q')
+    }
+  }
+
+  /**
+    Params which are passed to the DiscussionList
+   */
+  params() {
+    var params = this.stickyParams();
+    params.filter = m.route.param('filter');
+    return params;
+  }
+
   reorder(sort) {
-    var filter = m.route.param('filter') || '';
+    var params = this.params();
-    var params = sort !== 'recent' ? {sort} : {};
+    if (sort === 'recent') {
-    m.route(app.route('index.filter', {filter}, params));
+      delete params.sort;
+    } else {
+      params.sort = sort;
+    }
+    m.route(app.route(this.props.routeName, params));
   }
 
   /**
@@ -47,6 +73,11 @@ export default class IndexPage extends Component {
     @return void
    */
   view() {
+    var sortOptions = {};
+    for (var i in app.cache.discussionList.sortMap()) {
+      sortOptions[i] = i.substr(0, 1).toUpperCase()+i.substr(1);
+    }
+
     return m('div.index-area', {config: this.onload.bind(this)}, [
       WelcomeHero.component(),
       m('div.container', [
@@ -57,8 +88,8 @@ export default class IndexPage extends Component {
           m('div.index-toolbar', [
             m('div.index-toolbar-view', [
               SelectInput.component({
-                options: app.cache.discussionList.sortOptions(),
+                options: sortOptions,
-                value: app.cache.discussionList.sort(),
+                value: m.route.param('sort'),
                 onchange: this.reorder.bind(this)
               }),
             ]),

js/lib/components/select-input.js

@@ -5,7 +5,7 @@ export default class SelectInput extends Component {
   view(ctrl) {
     return m('span.select-input', [
       m('select.form-control', {onchange: m.withAttr('value', this.props.onchange.bind(ctrl)), value: this.props.value}, [
-        this.props.options.map(function(option) { return m('option', {value: option.key}, option.value) })
+        Object.keys(this.props.options).map(key => m('option', {value: key}, this.props.options[key]))
       ]),
       icon('sort')
     ])

js/lib/utils/map-routes.js

@@ -1,6 +1,7 @@
 export default function mapRoutes(routes) {
   var map = {};
   for (var r in routes) {
+    routes[r][1].props.routeName = r;
     map[routes[r][0]] = routes[r][1];
   }
   return map;