FIX: improves uncategorized support for category-select-box

app/assets/javascripts/discourse/components/category-select-box.js.es6

@@ -7,6 +7,8 @@ import Category from "discourse/models/category";
 export default SelectBoxComponent.extend({
   classNames: ["category-select-box"],
 
+  selectBoxRowComponent: "category-select-box/category-select-box-row",
+
   textKey: "name",
 
   filterable: true,

app/assets/javascripts/discourse/components/category-select-box/category-select-box-row.js.es6

@@ -0,0 +1,13 @@
+import computed from 'ember-addons/ember-computed-decorators';
+import SelectBoxRowComponent from "discourse/components/select-box/select-box-row";
+import Category from "discourse/models/category";
+
+export default SelectBoxRowComponent.extend({
+  classNameBindings: ["isUncategorized"],
+
+  @computed("content")
+  isUncategorized(content) {
+    const category = Category.findById(content.id);
+    return category.get("isUncategorizedCategory");
+  }
+});

app/assets/javascripts/discourse/components/select-box/select-box-header.js.es6

@@ -5,29 +5,16 @@ export default Ember.Component.extend({
 
   classNameBindings: ["focused:is-focused"],
 
-  showClearButton: false,
-
   didReceiveAttrs() {
     this._super();
 
     this._setCaretIcon();
   },
 
-  @computed("clearable", "selectedId")
-  showClearButton(clearable, selectedId) {
-    return clearable === true && !Ember.isNone(selectedId);
-  },
-
   click() {
     this.sendAction("onToggle");
   },
 
-  actions: {
-    clearSelection() {
-      this.sendAction("onClearSelection");
-    }
-  },
-
   _setCaretIcon() {
     if(this.get("expanded")) {
       this.set("caretIcon", this.get("caretUpIcon"));

app/assets/javascripts/discourse/templates/components/select-box.hbs

@@ -13,9 +13,7 @@
   caretUpIcon=caretUpIcon
   caretDownIcon=caretDownIcon
   onToggle=(action "onToggle")
-  onClearSelection=(action "onClearSelection")
   icon=icon
-  clearable=clearable
   expanded=expanded
   value=value
 }}

app/assets/javascripts/discourse/templates/components/select-box/select-box-header.hbs

@@ -6,10 +6,4 @@
   {{text}}
 </span>
 
-{{#if showClearButton}}
-  <button class="btn btn-primary clear-selection" {{action "clearSelection" bubbles=false}}>
-    {{d-icon "times"}}
-  </button>
-{{/if}}
-
 {{d-icon caretIcon class="caret-icon"}}

app/assets/stylesheets/common/components/category-select-box.scss

@@ -8,6 +8,12 @@
         -ms-flex-direction: column;
             flex-direction: column;
 
+    &.is-uncategorized {
+      .topic-count {
+        display: none;
+      }
+    }
+
     .topic-count {
       font-size: 11px;
       color: $primary;

app/assets/stylesheets/common/components/select-box.scss

@@ -91,18 +91,6 @@
       -webkit-box-shadow: $tertiary 0px 0px 6px 0px;
               box-shadow: $tertiary 0px 0px 6px 0px;
     }
-
-    .clear-selection {
-      margin: 0 5px;
-      padding: 0;
-      outline: none;
-
-      .d-icon {
-        margin: 0;
-        padding-left: 10px;
-        padding-right: 10px;
-      }
-    }
   }
 
   .select-box-body {