selectItems, selectAll, and tests

src/lib/template/array-selector.html

@@ -212,6 +212,41 @@
           this.linkPaths('selectedItem', 'items.' + key);
         }
       }
+    },
+
+    /**
+     * Selects the given items.
+     *
+     * @param {array} items Items from `items` array to select
+     */
+    selectItems: function(items) {
+      if (arguments.length > 1 || (typeof items !== 'undefined' && !Array.isArray(items))) {
+        items = Array.from(arguments);
+      }
+      var icol = Polymer.Collection.get(this.items);
+      var key;
+      var skey;
+      var item;
+      if (this.multi) {
+        this.set('selected', items);
+        this._selectedColl = Polymer.Collection.get(this.selected);
+        for (var i=0; i<items; i++) {
+          item = items[i];
+          key = icol.getKey(item);
+          skey = this._selectedColl.getKey(item);
+          this.linkPaths('selected.' + skey, 'items.' + key);
+        }
+      } else if (items.length){
+        this.select(items[0]);
+      }
+    },
+
+    /**
+     * Selects all of the items.
+     *
+     */
+    selectAll: function() {
+      this.selectItems(this.items);
     }
 
   });

test/unit/array-selector.html

@@ -247,6 +247,50 @@
     assert.equal(called, true);
   });
 
+  test('select items', function() {
+    var el = document.querySelector('#multiConfigured');
+    el.clearSelection();
+    // Nothing selected
+    assert.sameMembers(el.selected, []);
+    assert.isFalse(el.isSelected(el.items[0]));
+    assert.isFalse(el.isSelected(el.items[1]));
+    assert.isFalse(el.isSelected(el.items[2]));
+    // Select 0, 2
+    el.selectItems([el.items[0], el.items[2]]);
+    assert.sameMembers(el.selected, [el.items[0], el.items[2]]);
+    assert.isTrue(el.isSelected(el.items[0]));
+    assert.isFalse(el.isSelected(el.items[1]));
+    assert.isTrue(el.isSelected(el.items[2]));
+    el.clearSelection();
+    // Nothing selected
+    assert.sameMembers(el.selected, []);
+    assert.isFalse(el.isSelected(el.items[0]));
+    assert.isFalse(el.isSelected(el.items[1]));
+    assert.isFalse(el.isSelected(el.items[2]));
+    // Select 1, 2
+    el.selectItems(el.items[1], el.items[2]);
+    assert.sameMembers(el.selected, [el.items[1], el.items[2]]);
+    assert.isFalse(el.isSelected(el.items[0]));
+    assert.isTrue(el.isSelected(el.items[1]));
+    assert.isTrue(el.isSelected(el.items[2]));
+  });
+
+  test('select all', function() {
+    var el = document.querySelector('#multiConfigured');
+    el.clearSelection();
+    // Nothing selected
+    assert.sameMembers(el.selected, []);
+    assert.isFalse(el.isSelected(el.items[0]));
+    assert.isFalse(el.isSelected(el.items[1]));
+    assert.isFalse(el.isSelected(el.items[2]));
+    // Select All
+    el.selectAll();
+    assert.sameMembers(el.selected, [el.items[0], el.items[1], el.items[2]]);
+    assert.isTrue(el.isSelected(el.items[0]));
+    assert.isTrue(el.isSelected(el.items[1]));
+    assert.isTrue(el.isSelected(el.items[2]));
+  });
+
 });
 </script>