Add UI to filter fuzzes based on tags.

res/imp/9/select-status-sk.html

+<!--
+  The res/common/js/common.js file must be included before this file.
+
+  This in an HTML Import-able file that contains the definition
+  of the following elements:
+
+    <select-status-sk>
+
+  This element adds a clear button and a selected-values binding to a select element.
+
+  To use this file import it:
+
+    <link href="/res/imp/select-status-sk.html" rel="import" />
+
+  Usage:
+
+    <select-status-sk></select-status-sk>
+
+  Properties:
+    target - String.  The unique id of the select element that should be attached to.
+    selected-values - Array of Strings.  The selected values.
+    no-button - Boolean.  Suppress the clear button.
+
+  Methods:
+    None.
+
+  Events:
+    None.
+-->
+<dom-module id="select-status-sk">
+  <template>
+    <button id="clear" on-click="clearSelections" hidden$="{{noButton}}">Clear</button>
+  </template>
+
+  <script>
+    Polymer({
+      is: 'select-status-sk',
+
+      properties: {
+        noButton: {
+          type: Boolean,
+          value: false,
+        },
+        target: {
+          type: String,
+          value: null,
+        },
+        selectedValues: {
+          type: Array,
+          notify: true,
+          observer: "applySelection"
+          // no default value here to allow parent to supply the value from another binding.
+        },
+      },
+
+      attached: function() {
+        this.select = $$$('#' + this.target);
+        this.select.addEventListener('change', this._updateSelection.bind(this));
+      },
+
+      // applySelection handles input from the parent element via the binding,
+      // updating the select element to mirror the selection.
+      applySelection: function(selection) {
+        if (!selection) {
+          return;
+        }
+        $$('option', this.select).forEach(function(option) {
+          option.selected = (selection.indexOf(option.value) != -1);
+        }, this);
+      },
+
+      // _updateSelection handles input from the user on the select element.
+      _updateSelection: function() {
+        var selected = [];
+        $$('option', this.select).forEach(function(option) {
+          if (option.selected) {
+            selected.push(option.value);
+          }
+        }, this);
+        // This is just an array of values, so we don't need to use this.push/this.splice
+        // In fact, such methods do not properly update the host.
+        this.set("selectedValues", selected);
+      },
+
+      clearSelections: function() {
+        $$('option', this.select).forEach(function (elem) {
+          elem.selected = false;
+        });
+        this._updateSelection();
+      },
+
+    });
+  </script>
+</dom-module>