third_party/polymer/components-chromium/paper-dropdown-menu/paper-dropdown-menu.html

   1 <!--
   2 Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
   3 This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
   4 The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
   5 The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
   6 Code distributed by Google as part of the polymer project is also
   7 subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
   8 --><!--
   9
  10 `paper-dropdown-menu` works together with `paper-dropdown` and `core-menu` to
  11 implement a drop-down menu. The currently selected item is displayed in the
  12 control. If no item is selected, the `label` is displayed instead.
  13
  14 The child element with the class `dropdown` will be used as the drop-down
  15 menu. It should be a `paper-dropdown` or other overlay element. You should
  16 also provide a `core-selector` or other selector element, such as `core-menu`,
  17 in the drop-down. You should apply the class `menu` to the selector element.
  18
  19 Example:
  20
  21     <paper-dropdown-menu label="Your favorite pastry">
  22         <paper-dropdown class="dropdown">
  23             <core-menu class="menu">
  24                 <paper-item>Croissant</paper-item>
  25                 <paper-item>Donut</paper-item>
  26                 <paper-item>Financier</paper-item>
  27                 <paper-item>Madeleine</paper-item>
  28             </core-menu>
  29         </paper-dropdown>
  30     </paper-dropdown-menu>
  31
  32 This example renders a drop-down menu with 4 options.
  33
  34 @group Paper Elements
  35 @element paper-dropdown-menu
  36 @extends core-dropdown-base
  37 @status unstable
  38 @homepage github.io
  39 --><!--
  40 Fired when an item's selection state is changed. This event is fired both
  41 when an item is selected or deselected. The `isSelected` detail property
  42 contains the selection state.
  43
  44 @event core-select
  45 @param {Object} detail
  46   @param {boolean} detail.isSelected true for selection and false for deselection
  47   @param {Object} detail.item the item element
  48 --><html><head><link href="../polymer/polymer.html" rel="import">
  49
  50 <link href="../core-a11y-keys/core-a11y-keys.html" rel="import">
  51 <link href="../core-dropdown/core-dropdown-base.html" rel="import">
  52 <link href="../core-focusable/core-focusable.html" rel="import">
  53 <link href="../core-icon/core-icon.html" rel="import">
  54 <link href="../core-icons/core-icons.html" rel="import">
  55 <link href="../paper-shadow/paper-shadow.html" rel="import">
  56
  57 <style shim-shadowdom="">
  58   html /deep/ #paper-dropdown-menu-dropdown {
  59     margin: 12px;
  60     overflow: visible;
  61   }
  62
  63   html /deep/ #paper-dropdown-menu-dropdown #menu {
  64     padding: 8px 0;
  65     margin: 0;
  66   }
  67
  68   html /deep/ #paper-dropdown-menu-dropdown .menu-container {
  69     overflow: auto;
  70     max-height: 100%;
  71     max-width: 100%;
  72   }
  73 </style>
  74
  75 </head><body><polymer-element name="paper-dropdown-menu" extends="core-dropdown-base" relative="" layout="" inline="" horizontal="" center="" tabindex="0" assetpath="">
  76 <template>
  77
  78   <style>
  79     :host {
  80       -moz-user-select: none;
  81       -ms-user-select: none;
  82       -webkit-user-select: none;
  83       user-select: none;
  84       cursor: pointer;
  85       padding: 0.5em 0 0.25em;
  86       margin: 0.75em 0;
  87       border-bottom: 1px solid #757575;
  88       outline: none;
  89     }
  90
  91     #label, #arrow {
  92       color: #757575;
  93     }
  94
  95     #label {
  96       overflow: hidden;
  97       white-space: nowrap;
  98       text-overflow: ellipsis;
  99     }
 100   </style>
 101
 102   <core-a11y-keys target="{{}}" keys="enter space" on-keys-pressed="{{toggleOverlay}}"></core-a11y-keys>
 103
 104   <div flex="" auto="" id="label">{{selectedItemLabel || label}}</div>
 105   <core-icon id="arrow" icon="{{opened ? openedIcon : closedIcon}}"></core-icon>
 106
 107   <content></content>
 108
 109 </template>
 110
 111 </polymer-element>
 112 <script charset="utf-8" src="paper-dropdown-menu-extracted.js"></script></body></html>