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| 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.g
ithub.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/CONTRI
BUTORS.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/PATEN
TS.txt | |
| 8 --> | |
| 9 | |
| 10 <!-- | |
| 11 `core-header-panel` contains a header section and a content panel section. | |
| 12 | |
| 13 __Important:__ The `core-header-panel` will not display if its parent does not h
ave a height. | |
| 14 | |
| 15 Using [layout attributes](http://www.polymer-project.org/docs/polymer/layout-att
rs.html), you can easily make the `core-header-panel` fill the screen | |
| 16 | |
| 17 <body fullbleed layout vertical> | |
| 18 <core-header-panel flex> | |
| 19 <core-toolbar> | |
| 20 <div>Hello World!</div> | |
| 21 </core-toolbar> | |
| 22 </core-header-panel> | |
| 23 </body> | |
| 24 | |
| 25 or, if you would prefer to do it in CSS, just give `html`, `body`, and `core-hea
der-panel` a height of 100%: | |
| 26 | |
| 27 html, body { | |
| 28 height: 100%; | |
| 29 margin: 0; | |
| 30 } | |
| 31 core-header-panel { | |
| 32 height: 100%; | |
| 33 } | |
| 34 | |
| 35 Special support is provided for scrolling modes when one uses a core-toolbar or
equivalent | |
| 36 for the header section. | |
| 37 | |
| 38 Example: | |
| 39 | |
| 40 <core-header-panel> | |
| 41 <core-toolbar>Header</core-toolbar> | |
| 42 <div>Content goes here...</div> | |
| 43 </core-header-panel> | |
| 44 | |
| 45 If you want to use other than `core-toolbar` for the header, add | |
| 46 `core-header` class to that element. | |
| 47 | |
| 48 Example: | |
| 49 | |
| 50 <core-header-panel> | |
| 51 <div class="core-header">Header</div> | |
| 52 <div>Content goes here...</div> | |
| 53 </core-header-panel> | |
| 54 | |
| 55 To have the content fits to the main area, use `fit` attribute. | |
| 56 | |
| 57 <core-header-panel> | |
| 58 <div class="core-header">standard</div> | |
| 59 <div class="content" fit>content fits 100% below the header</div> | |
| 60 </core-header-panel> | |
| 61 | |
| 62 Use `mode` to control the header and scrolling behavior. | |
| 63 | |
| 64 @group Polymer Core Elements | |
| 65 @element core-header-panel | |
| 66 @homepage github.io | |
| 67 --> | |
| 68 | |
| 69 <link rel="import" href="../polymer/polymer.html"> | |
| 70 | |
| 71 <polymer-element name="core-header-panel"> | |
| 72 <template> | |
| 73 | |
| 74 <link rel="stylesheet" href="core-header-panel.css"> | |
| 75 | |
| 76 <div id="outerContainer" vertical layout> | |
| 77 | |
| 78 <content id="headerContent" select="core-toolbar, .core-header"></content> | |
| 79 | |
| 80 <div id="mainPanel" flex vertical layout> | |
| 81 | |
| 82 <div id="mainContainer" flex?="{{mode !== 'cover'}}"> | |
| 83 <content id="mainContent" select="*"></content> | |
| 84 </div> | |
| 85 | |
| 86 <div id="dropShadow"></div> | |
| 87 | |
| 88 </div> | |
| 89 | |
| 90 </div> | |
| 91 | |
| 92 </template> | |
| 93 <script> | |
| 94 | |
| 95 Polymer('core-header-panel', { | |
| 96 | |
| 97 /** | |
| 98 * Fired when the content has been scrolled. `event.detail.target` returns | |
| 99 * the scrollable element which you can use to access scroll info such as | |
| 100 * `scrollTop`. | |
| 101 * | |
| 102 * <core-header-panel on-scroll="{{scrollHandler}}"> | |
| 103 * ... | |
| 104 * </core-header-panel> | |
| 105 * | |
| 106 * | |
| 107 * scrollHandler: function(event) { | |
| 108 * var scroller = event.detail.target; | |
| 109 * console.log(scroller.scrollTop); | |
| 110 * } | |
| 111 * | |
| 112 * @event scroll | |
| 113 */ | |
| 114 | |
| 115 publish: { | |
| 116 /** | |
| 117 * Controls header and scrolling behavior. Options are | |
| 118 * `standard`, `seamed`, `waterfall`, `waterfall-tall`, `scroll` and | |
| 119 * `cover`. Default is `standard`. | |
| 120 * | |
| 121 * `standard`: The header is a step above the panel. The header will consu
me the | |
| 122 * panel at the point of entry, preventing it from passing through to the | |
| 123 * opposite side. | |
| 124 * | |
| 125 * `seamed`: The header is presented as seamed with the panel. | |
| 126 * | |
| 127 * `waterfall`: Similar to standard mode, but header is initially presente
d as | |
| 128 * seamed with panel, but then separates to form the step. | |
| 129 * | |
| 130 * `waterfall-tall`: The header is initially taller (`tall` class is added
to | |
| 131 * the header). As the user scrolls, the header separates (forming an edg
e) | |
| 132 * while condensing (`tall` class is removed from the header). | |
| 133 * | |
| 134 * `scroll`: The header keeps its seam with the panel, and is pushed off s
creen. | |
| 135 * | |
| 136 * `cover`: The panel covers the whole `core-header-panel` including the | |
| 137 * header. This allows user to style the panel in such a way that the pane
l is | |
| 138 * partially covering the header. | |
| 139 * | |
| 140 * <style> | |
| 141 * core-header-panel[mode=cover]::shadow #mainContainer { | |
| 142 * left: 80px; | |
| 143 * } | |
| 144 * .content { | |
| 145 * margin: 60px 60px 60px 0; | |
| 146 * } | |
| 147 * </style> | |
| 148 * | |
| 149 * <core-header-panel mode="cover"> | |
| 150 * <core-appbar class="tall"> | |
| 151 * <core-icon-button icon="menu"></core-icon-button> | |
| 152 * </core-appbar> | |
| 153 * <div class="content"></div> | |
| 154 * </core-header-panel> | |
| 155 * | |
| 156 * @attribute mode | |
| 157 * @type string | |
| 158 * @default '' | |
| 159 */ | |
| 160 mode: {value: '', reflect: true}, | |
| 161 | |
| 162 /** | |
| 163 * The class used in waterfall-tall mode. Change this if the header | |
| 164 * accepts a different class for toggling height, e.g. "medium-tall" | |
| 165 * | |
| 166 * @attribute tallClass | |
| 167 * @type string | |
| 168 * @default 'tall' | |
| 169 */ | |
| 170 tallClass: 'tall', | |
| 171 | |
| 172 /** | |
| 173 * If true, the drop-shadow is always shown no matter what mode is set to. | |
| 174 * | |
| 175 * @attribute shadow | |
| 176 * @type boolean | |
| 177 * @default false | |
| 178 */ | |
| 179 shadow: false | |
| 180 }, | |
| 181 | |
| 182 animateDuration: 200, | |
| 183 | |
| 184 modeConfigs: { | |
| 185 shadowMode: {'waterfall': 1, 'waterfall-tall': 1}, | |
| 186 noShadow: {'seamed': 1, 'cover': 1, 'scroll': 1}, | |
| 187 tallMode: {'waterfall-tall': 1}, | |
| 188 outerScroll: {'scroll': 1} | |
| 189 }, | |
| 190 | |
| 191 ready: function() { | |
| 192 this.scrollHandler = this.scroll.bind(this); | |
| 193 this.addListener(); | |
| 194 }, | |
| 195 | |
| 196 detached: function() { | |
| 197 this.removeListener(this.mode); | |
| 198 }, | |
| 199 | |
| 200 addListener: function() { | |
| 201 this.scroller.addEventListener('scroll', this.scrollHandler); | |
| 202 }, | |
| 203 | |
| 204 removeListener: function(mode) { | |
| 205 var s = this.getScrollerForMode(mode); | |
| 206 s.removeEventListener('scroll', this.scrollHandler); | |
| 207 }, | |
| 208 | |
| 209 domReady: function() { | |
| 210 this.async('scroll'); | |
| 211 }, | |
| 212 | |
| 213 modeChanged: function(old) { | |
| 214 var header = this.header; | |
| 215 if (header) { | |
| 216 var configs = this.modeConfigs; | |
| 217 // in tallMode it may add tallClass to the header; so do the cleanup | |
| 218 // when mode is changed from tallMode to not tallMode | |
| 219 if (configs.tallMode[old] && !configs.tallMode[this.mode]) { | |
| 220 header.classList.remove(this.tallClass); | |
| 221 this.async(function() { | |
| 222 header.classList.remove('animate'); | |
| 223 }, null, this.animateDuration); | |
| 224 } else { | |
| 225 header.classList.toggle('animate', configs.tallMode[this.mode]); | |
| 226 } | |
| 227 } | |
| 228 if (configs.outerScroll[this.mode] || configs.outerScroll[old]) { | |
| 229 this.removeListener(old); | |
| 230 this.addListener(); | |
| 231 } | |
| 232 this.scroll(); | |
| 233 }, | |
| 234 | |
| 235 get header() { | |
| 236 return this.$.headerContent.getDistributedNodes()[0]; | |
| 237 }, | |
| 238 | |
| 239 getScrollerForMode: function(mode) { | |
| 240 return this.modeConfigs.outerScroll[mode] ? | |
| 241 this.$.outerContainer : this.$.mainContainer; | |
| 242 }, | |
| 243 | |
| 244 /** | |
| 245 * Returns the scrollable element. | |
| 246 * | |
| 247 * @property scroller | |
| 248 * @type Object | |
| 249 */ | |
| 250 get scroller() { | |
| 251 return this.getScrollerForMode(this.mode); | |
| 252 }, | |
| 253 | |
| 254 scroll: function() { | |
| 255 var configs = this.modeConfigs; | |
| 256 var main = this.$.mainContainer; | |
| 257 var header = this.header; | |
| 258 | |
| 259 var sTop = main.scrollTop; | |
| 260 var atTop = sTop === 0; | |
| 261 | |
| 262 this.$.dropShadow.classList.toggle('hidden', !this.shadow && | |
| 263 (atTop && configs.shadowMode[this.mode] || configs.noShadow[this.mode]
)); | |
| 264 | |
| 265 if (header && configs.tallMode[this.mode]) { | |
| 266 header.classList.toggle(this.tallClass, atTop || | |
| 267 header.classList.contains(this.tallClass) && | |
| 268 main.scrollHeight < this.$.outerContainer.offsetHeight); | |
| 269 } | |
| 270 | |
| 271 this.fire('scroll', {target: this.scroller}, this, false); | |
| 272 } | |
| 273 | |
| 274 }); | |
| 275 | |
| 276 </script> | |
| 277 </polymer-element> | |
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Chromium Code Reviews
Issue 786953007:
npm_modules: Fork bower_components into Polymer 0.4.0 and 0.5.0 versions (Closed)
Base URL: https://chromium.googlesource.com/infra/third_party/npm_modules.git@master