Blame view

bower_components/paper-menu-button/paper-menu-button.html 10.8 KB
73bcce88   luigser   COMPONENTS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
  <!--
  @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-dropdown/iron-dropdown.html">
  <link rel="import" href="../iron-a11y-keys-behavior/iron-a11y-keys-behavior.html">
  <link rel="import" href="../iron-behaviors/iron-control-state.html">
  <link rel="import" href="../paper-material/paper-material.html">
  <link rel="import" href="../paper-styles/default-theme.html">
  <link rel="import" href="../neon-animation/animations/fade-in-animation.html">
  <link rel="import" href="../neon-animation/animations/fade-out-animation.html">
  <link rel="import" href="paper-menu-button-animations.html">
  
  <!--
73bcce88   luigser   COMPONENTS
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
  `paper-menu-button` allows one to compose a designated "trigger" element with
  another element that represents "content", to create a dropdown menu that
  displays the "content" when the "trigger" is clicked.
  
  The child element with the class `dropdown-trigger` will be used as the
  "trigger" element. The child element with the class `dropdown-content` will be
  used as the "content" element.
  
  The `paper-menu-button` is sensitive to its content's `iron-select` events. If
  the "content" element triggers an `iron-select` event, the `paper-menu-button`
  will close automatically.
  
  Example:
  
      <paper-menu-button>
        <paper-icon-button icon="menu" class="dropdown-trigger"></paper-icon-button>
        <paper-menu class="dropdown-content">
          <paper-item>Share</paper-item>
          <paper-item>Settings</paper-item>
          <paper-item>Help</paper-item>
        </paper-menu>
      </paper-menu-button>
  
  ### Styling
  
  The following custom properties and mixins are also available for styling:
  
  Custom property | Description | Default
  ----------------|-------------|----------
  `--paper-menu-button-dropdown-background` | Background color of the paper-menu-button dropdown | `#fff`
  `--paper-menu-button` | Mixin applied to the paper-menu-button | `{}`
  `--paper-menu-button-disabled` | Mixin applied to the paper-menu-button when disabled | `{}`
  `--paper-menu-button-dropdown` | Mixin applied to the paper-menu-button dropdown | `{}`
c5169e0e   Renato De Donato   a new hope
55
  
73bcce88   luigser   COMPONENTS
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
  
  @hero hero.svg
  @demo demo/index.html
  -->
  
  <dom-module id="paper-menu-button">
    <style>
      :host {
        display: inline-block;
        position: relative;
        padding: 8px;
        outline: none;
  
        @apply(--paper-menu-button);
      }
  
      :host([disabled]) {
        cursor: auto;
        color: var(--disabled-text-color);
  
        @apply(--paper-menu-button-disabled);
      }
  
      :host([vertical-align="top"]) paper-material {
        margin-bottom: 20px;
        margin-top: -10px;
        top: 10px;
      }
  
      :host([vertical-align="bottom"]) paper-material {
        bottom: 10px;
        margin-bottom: -10px;
        margin-top: 20px;
      }
  
c5169e0e   Renato De Donato   a new hope
91
      paper-material {
73bcce88   luigser   COMPONENTS
92
93
        border-radius: 2px;
        background-color: var(--paper-menu-button-dropdown-background, --primary-background-color);
c5169e0e   Renato De Donato   a new hope
94
95
  
        @apply(--paper-menu-button-dropdown);
73bcce88   luigser   COMPONENTS
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
      }
    </style>
    <template>
      <div id="trigger" on-tap="open">
        <content select=".dropdown-trigger"></content>
      </div>
      <iron-dropdown
        id="dropdown"
        opened="{{opened}}"
        horizontal-align="[[horizontalAlign]]"
        vertical-align="[[verticalAlign]]"
        horizontal-offset="[[horizontalOffset]]"
        vertical-offset="[[verticalOffset]]"
        open-animation-config="[[openAnimationConfig]]"
        close-animation-config="[[closeAnimationConfig]]"
        no-animations="[[noAnimations]]"
        focus-target="[[_dropdownContent]]">
        <paper-material class="dropdown-content">
          <content id="content" select=".dropdown-content"></content>
        </paper-material>
      </iron-dropdown>
    </template>
  </dom-module>
  <script>
    (function() {
      'use strict';
  
      var PaperMenuButton = Polymer({
        is: 'paper-menu-button',
  
        /**
         * Fired when the dropdown opens.
         *
         * @event paper-dropdown-open
         */
  
        /**
         * Fired when the dropdown closes.
         *
         * @event paper-dropdown-close
         */
  
        behaviors: [
          Polymer.IronA11yKeysBehavior,
          Polymer.IronControlState
        ],
  
        properties: {
  
          /**
           * True if the content is currently displayed.
           */
          opened: {
            type: Boolean,
            value: false,
            notify: true,
            observer: '_openedChanged'
          },
  
          /**
           * The orientation against which to align the menu dropdown
           * horizontally relative to the dropdown trigger.
           */
          horizontalAlign: {
            type: String,
            value: 'left',
            reflectToAttribute: true
          },
  
          /**
           * The orientation against which to align the menu dropdown
           * vertically relative to the dropdown trigger.
           */
          verticalAlign: {
            type: String,
            value: 'top',
            reflectToAttribute: true
          },
  
          /**
           * A pixel value that will be added to the position calculated for the
           * given `horizontalAlign`. Use a negative value to offset to the
           * left, or a positive value to offset to the right.
           */
          horizontalOffset: {
            type: Number,
            value: 0,
            notify: true
          },
  
          /**
           * A pixel value that will be added to the position calculated for the
           * given `verticalAlign`. Use a negative value to offset towards the
           * top, or a positive value to offset towards the bottom.
           */
          verticalOffset: {
            type: Number,
            value: 0,
            notify: true
          },
  
          /**
           * Set to true to disable animations when opening and closing the
           * dropdown.
           */
          noAnimations: {
            type: Boolean,
            value: false
          },
  
          /**
           * Set to true to disable automatically closing the dropdown after
           * a selection has been made.
           */
          ignoreSelect: {
            type: Boolean,
            value: false
          },
  
          /**
           * An animation config. If provided, this will be used to animate the
           * opening of the dropdown.
           */
          openAnimationConfig: {
            type: Object,
            value: function() {
              return [{
                name: 'fade-in-animation',
                timing: {
                  delay: 100,
                  duration: 200
                }
              }, {
                name: 'paper-menu-grow-width-animation',
                timing: {
                  delay: 100,
                  duration: 150,
                  easing: PaperMenuButton.ANIMATION_CUBIC_BEZIER
                }
              }, {
                name: 'paper-menu-grow-height-animation',
                timing: {
                  delay: 100,
                  duration: 275,
                  easing: PaperMenuButton.ANIMATION_CUBIC_BEZIER
                }
              }];
            }
          },
  
          /**
           * An animation config. If provided, this will be used to animate the
           * closing of the dropdown.
           */
          closeAnimationConfig: {
            type: Object,
            value: function() {
              return [{
                name: 'fade-out-animation',
                timing: {
                  duration: 150
                }
              }, {
                name: 'paper-menu-shrink-width-animation',
                timing: {
                  delay: 100,
                  duration: 50,
                  easing: PaperMenuButton.ANIMATION_CUBIC_BEZIER
                }
              }, {
                name: 'paper-menu-shrink-height-animation',
                timing: {
                  duration: 200,
                  easing: 'ease-in'
                }
              }];
            }
          },
  
          /**
           * This is the element intended to be bound as the focus target
           * for the `iron-dropdown` contained by `paper-menu-button`.
           */
          _dropdownContent: {
            type: Object
          }
        },
  
        hostAttributes: {
          role: 'group',
          'aria-haspopup': 'true'
        },
  
        listeners: {
          'iron-select': '_onIronSelect'
        },
  
        /**
         * The content element that is contained by the menu button, if any.
         */
        get contentElement() {
          return Polymer.dom(this.$.content).getDistributedNodes()[0];
        },
  
        /**
         * Make the dropdown content appear as an overlay positioned relative
         * to the dropdown trigger.
         */
        open: function() {
          if (this.disabled) {
            return;
          }
  
          this.$.dropdown.open();
        },
  
        /**
         * Hide the dropdown content.
         */
        close: function() {
          this.$.dropdown.close();
        },
  
        /**
         * When an `iron-select` event is received, the dropdown should
         * automatically close on the assumption that a value has been chosen.
         *
         * @param {CustomEvent} event A CustomEvent instance with type
         * set to `"iron-select"`.
         */
        _onIronSelect: function(event) {
          if (!this.ignoreSelect) {
            this.close();
          }
        },
  
        /**
         * When the dropdown opens, the `paper-menu-button` fires `paper-open`.
         * When the dropdown closes, the `paper-menu-button` fires `paper-close`.
         *
         * @param {boolean} opened True if the dropdown is opened, otherwise false.
         * @param {boolean} oldOpened The previous value of `opened`.
         */
        _openedChanged: function(opened, oldOpened) {
          if (opened) {
            // TODO(cdata): Update this when we can measure changes in distributed
            // children in an idiomatic way.
            // We poke this property in case the element has changed. This will
            // cause the focus target for the `iron-dropdown` to be updated as
            // necessary:
            this._dropdownContent = this.contentElement;
            this.fire('paper-dropdown-open');
          } else if (oldOpened != null) {
            this.fire('paper-dropdown-close');
          }
        },
  
        /**
         * If the dropdown is open when disabled becomes true, close the
         * dropdown.
         *
         * @param {boolean} disabled True if disabled, otherwise false.
         */
        _disabledChanged: function(disabled) {
          Polymer.IronControlState._disabledChanged.apply(this, arguments);
          if (disabled && this.opened) {
            this.close();
          }
        }
      });
  
      PaperMenuButton.ANIMATION_CUBIC_BEZIER = 'cubic-bezier(.3,.95,.5,1)';
      PaperMenuButton.MAX_ANIMATION_TIME_MS = 400;
  
      Polymer.PaperMenuButton = PaperMenuButton;
    })();
  </script>