WIP - Pinpoint - New Page.

third_party/polymer/components/paper-radio-group/paper-radio-group.html

+<!--
+@license
+Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
+This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
+The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
+The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
+Code distributed by Google as part of the polymer project is also
+subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
+-->
+
+<link rel="import" href="../polymer/polymer.html">
+<link rel="import" href="../iron-a11y-keys-behavior/iron-a11y-keys-behavior.html">
+<link rel="import" href="../iron-menu-behavior/iron-menubar-behavior.html">
+<link rel="import" href="../paper-radio-button/paper-radio-button.html">
+
+<!--
+Material design: [Radio button](https://www.google.com/design/spec/components/selection-controls.html#selection-controls-radio-button)
+
+`paper-radio-group` allows user to select at most one radio button from a set.
+Checking one radio button that belongs to a radio group unchecks any
+previously checked radio button within the same group. Use
+`selected` to get or set the selected radio button.
+
+The <paper-radio-buttons> inside the group must have the `name` attribute
+set.
+
+Example:
+
+    <paper-radio-group selected="small">
+      <paper-radio-button name="small">Small</paper-radio-button>
+      <paper-radio-button name="medium">Medium</paper-radio-button>
+      <paper-radio-button name="large">Large</paper-radio-button>
+    </paper-radio-group>
+
+Radio-button-groups can be made optional, and allow zero buttons to be selected:
+
+    <paper-radio-group selected="small" allow-empty-selection>
+      <paper-radio-button name="small">Small</paper-radio-button>
+      <paper-radio-button name="medium">Medium</paper-radio-button>
+      <paper-radio-button name="large">Large</paper-radio-button>
+    </paper-radio-group>
+
+See <a href="paper-radio-button">paper-radio-button</a> for more
+information about `paper-radio-button`.
+
+
+Custom property | Description | Default
+----------------|-------------|----------
+`--paper-radio-group-item-padding` | The padding of the item | `12px`
+
+@group Paper Elements
+@element paper-radio-group
+@hero hero.svg
+@demo demo/index.html
+-->
+
+<dom-module id="paper-radio-group">
+  <template>
+    <style>
+      :host {
+        display: inline-block;
+      }
+
+      :host ::content > * {
+        padding: var(--paper-radio-group-item-padding, 12px);
+      }
+    </style>
+
+    <content id="items" select="*"></content>
+  </template>
+</dom-module>
+
+<script>
+  Polymer({
+    is: 'paper-radio-group',
+
+    behaviors: [
+      Polymer.IronMenubarBehavior
+    ],
+
+    hostAttributes: {
+      role: 'radiogroup',
+      tabindex: 0
+    },
+
+    properties: {
+      /**
+       * Fired when the radio group selection changes.
+       *
+       * @event paper-radio-group-changed
+       */
+
+      /**
+       * Overriden from Polymer.IronSelectableBehavior
+       */
+      attrForSelected: {
+        type: String,
+        value: 'name'
+      },
+
+      /**
+       * Overriden from Polymer.IronSelectableBehavior
+       */
+      selectedAttribute: {
+        type: String,
+        value: 'checked'
+      },
+
+      /**
+       * Overriden from Polymer.IronSelectableBehavior
+       */
+      selectable: {
+        type: String,
+        value: 'paper-radio-button'
+      },
+
+      /**
+       * If true, radio-buttons can be deselected
+       */
+      allowEmptySelection: {
+        type: Boolean,
+        value: false
+      }
+    },
+
+    /**
+     * Selects the given value.
+     */
+    select: function(value) {
+      var newItem = this._valueToItem(value);
+      if (newItem && newItem.hasAttribute('disabled')) {
+        return;
+      }
+
+      if (this.selected) {
+        var oldItem = this._valueToItem(this.selected);
+
+        if (this.selected == value) {
+          // If deselecting is allowed we'll have to apply an empty selection.
+          // Otherwise, we should force the selection to stay and make this
+          // action a no-op.
+          if (this.allowEmptySelection) {
+            value = '';
+          } else {
+            if (oldItem)
+              oldItem.checked = true;
+            return;
+          }
+        }
+
+        if (oldItem)
+          oldItem.checked = false;
+      }
+
+      Polymer.IronSelectableBehavior.select.apply(this, [value]);
+      this.fire('paper-radio-group-changed');
+    },
+
+    _activateFocusedItem: function() {
+      this._itemActivate(this._valueForItem(this.focusedItem), this.focusedItem);
+    },
+
+    _onUpKey: function(event) {
+      this._focusPrevious();
+      event.preventDefault();
+      this._activateFocusedItem();
+    },
+
+    _onDownKey: function(event) {
+      this._focusNext();
+      event.preventDefault();
+      this._activateFocusedItem();
+    },
+
+    _onLeftKey: function(event) {
+      Polymer.IronMenubarBehaviorImpl._onLeftKey.apply(this, arguments);
+      this._activateFocusedItem();
+    },
+
+    _onRightKey: function(event) {
+      Polymer.IronMenubarBehaviorImpl._onRightKey.apply(this, arguments);
+      this._activateFocusedItem();
+    }
+  });
+</script>