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| 1 | |
| 2 (function() { | |
| 3 | |
| 4 Polymer('core-overlay',Polymer.mixin({ | |
| 5 | |
| 6 publish: { | |
| 7 /** | |
| 8 * The target element that will be shown when the overlay is | |
| 9 * opened. If unspecified, the core-overlay itself is the target. | |
| 10 * | |
| 11 * @attribute target | |
| 12 * @type Object | |
| 13 * @default the overlay element | |
| 14 */ | |
| 15 target: null, | |
| 16 | |
| 17 | |
| 18 /** | |
| 19 * A `core-overlay`'s size is guaranteed to be | |
| 20 * constrained to the window size. To achieve this, the sizingElement | |
| 21 * is sized with a max-height/width. By default this element is the | |
| 22 * target element, but it can be specifically set to a specific element | |
| 23 * inside the target if that is more appropriate. This is useful, for | |
| 24 * example, when a region inside the overlay should scroll if needed. | |
| 25 * | |
| 26 * @attribute sizingTarget | |
| 27 * @type Object | |
| 28 * @default the target element | |
| 29 */ | |
| 30 sizingTarget: null, | |
| 31 | |
| 32 /** | |
| 33 * Set opened to true to show an overlay and to false to hide it. | |
| 34 * A `core-overlay` may be made initially opened by setting its | |
| 35 * `opened` attribute. | |
| 36 * @attribute opened | |
| 37 * @type boolean | |
| 38 * @default false | |
| 39 */ | |
| 40 opened: false, | |
| 41 | |
| 42 /** | |
| 43 * If true, the overlay has a backdrop darkening the rest of the screen. | |
| 44 * The backdrop element is attached to the document body and may be styled | |
| 45 * with the class `core-overlay-backdrop`. When opened the `core-opened` | |
| 46 * class is applied. | |
| 47 * | |
| 48 * @attribute backdrop | |
| 49 * @type boolean | |
| 50 * @default false | |
| 51 */ | |
| 52 backdrop: false, | |
| 53 | |
| 54 /** | |
| 55 * If true, the overlay is guaranteed to display above page content. | |
| 56 * | |
| 57 * @attribute layered | |
| 58 * @type boolean | |
| 59 * @default false | |
| 60 */ | |
| 61 layered: false, | |
| 62 | |
| 63 /** | |
| 64 * By default an overlay will close automatically if the user | |
| 65 * taps outside it or presses the escape key. Disable this | |
| 66 * behavior by setting the `autoCloseDisabled` property to true. | |
| 67 * @attribute autoCloseDisabled | |
| 68 * @type boolean | |
| 69 * @default false | |
| 70 */ | |
| 71 autoCloseDisabled: false, | |
| 72 | |
| 73 /** | |
| 74 * By default an overlay will focus its target or an element inside | |
| 75 * it with the `autoFocus` attribute. Disable this | |
| 76 * behavior by setting the `autoFocusDisabled` property to true. | |
| 77 * @attribute autoFocusDisabled | |
| 78 * @type boolean | |
| 79 * @default false | |
| 80 */ | |
| 81 autoFocusDisabled: false, | |
| 82 | |
| 83 /** | |
| 84 * This property specifies an attribute on elements that should | |
| 85 * close the overlay on tap. Should not set `closeSelector` if this | |
| 86 * is set. | |
| 87 * | |
| 88 * @attribute closeAttribute | |
| 89 * @type string | |
| 90 * @default "core-overlay-toggle" | |
| 91 */ | |
| 92 closeAttribute: 'core-overlay-toggle', | |
| 93 | |
| 94 /** | |
| 95 * This property specifies a selector matching elements that should | |
| 96 * close the overlay on tap. Should not set `closeAttribute` if this | |
| 97 * is set. | |
| 98 * | |
| 99 * @attribute closeSelector | |
| 100 * @type string | |
| 101 * @default "" | |
| 102 */ | |
| 103 closeSelector: '', | |
| 104 | |
| 105 /** | |
| 106 * The transition property specifies a string which identifies a | |
| 107 * <a href="../core-transition/">`core-transition`</a> element that | |
| 108 * will be used to help the overlay open and close. The default | |
| 109 * `core-transition-fade` will cause the overlay to fade in and out. | |
| 110 * | |
| 111 * @attribute transition | |
| 112 * @type string | |
| 113 * @default 'core-transition-fade' | |
| 114 */ | |
| 115 transition: 'core-transition-fade' | |
| 116 | |
| 117 }, | |
| 118 | |
| 119 captureEventName: 'tap', | |
| 120 targetListeners: { | |
| 121 'tap': 'tapHandler', | |
| 122 'keydown': 'keydownHandler', | |
| 123 'core-transitionend': 'transitionend' | |
| 124 }, | |
| 125 | |
| 126 attached: function() { | |
| 127 this.resizerAttachedHandler(); | |
| 128 }, | |
| 129 | |
| 130 detached: function() { | |
| 131 this.resizerDetachedHandler(); | |
| 132 }, | |
| 133 | |
| 134 resizerShouldNotify: function() { | |
| 135 return this.opened; | |
| 136 }, | |
| 137 | |
| 138 registerCallback: function(element) { | |
| 139 this.layer = document.createElement('core-overlay-layer'); | |
| 140 this.keyHelper = document.createElement('core-key-helper'); | |
| 141 this.meta = document.createElement('core-transition'); | |
| 142 this.scrim = document.createElement('div'); | |
| 143 this.scrim.className = 'core-overlay-backdrop'; | |
| 144 }, | |
| 145 | |
| 146 ready: function() { | |
| 147 this.target = this.target || this; | |
| 148 // flush to ensure styles are installed before paint | |
| 149 Polymer.flush(); | |
| 150 }, | |
| 151 | |
| 152 /** | |
| 153 * Toggle the opened state of the overlay. | |
| 154 * @method toggle | |
| 155 */ | |
| 156 toggle: function() { | |
| 157 this.opened = !this.opened; | |
| 158 }, | |
| 159 | |
| 160 /** | |
| 161 * Open the overlay. This is equivalent to setting the `opened` | |
| 162 * property to true. | |
| 163 * @method open | |
| 164 */ | |
| 165 open: function() { | |
| 166 this.opened = true; | |
| 167 }, | |
| 168 | |
| 169 /** | |
| 170 * Close the overlay. This is equivalent to setting the `opened` | |
| 171 * property to false. | |
| 172 * @method close | |
| 173 */ | |
| 174 close: function() { | |
| 175 this.opened = false; | |
| 176 }, | |
| 177 | |
| 178 domReady: function() { | |
| 179 this.ensureTargetSetup(); | |
| 180 }, | |
| 181 | |
| 182 targetChanged: function(old) { | |
| 183 if (this.target) { | |
| 184 // really make sure tabIndex is set | |
| 185 if (this.target.tabIndex < 0) { | |
| 186 this.target.tabIndex = -1; | |
| 187 } | |
| 188 this.addElementListenerList(this.target, this.targetListeners); | |
| 189 this.target.style.display = 'none'; | |
| 190 this.target.__overlaySetup = false; | |
| 191 } | |
| 192 if (old) { | |
| 193 this.removeElementListenerList(old, this.targetListeners); | |
| 194 var transition = this.getTransition(); | |
| 195 if (transition) { | |
| 196 transition.teardown(old); | |
| 197 } else { | |
| 198 old.style.position = ''; | |
| 199 old.style.outline = ''; | |
| 200 } | |
| 201 old.style.display = ''; | |
| 202 } | |
| 203 }, | |
| 204 | |
| 205 transitionChanged: function(old) { | |
| 206 if (!this.target) { | |
| 207 return; | |
| 208 } | |
| 209 if (old) { | |
| 210 this.getTransition(old).teardown(this.target); | |
| 211 } | |
| 212 this.target.__overlaySetup = false; | |
| 213 }, | |
| 214 | |
| 215 // NOTE: wait to call this until we're as sure as possible that target | |
| 216 // is styled. | |
| 217 ensureTargetSetup: function() { | |
| 218 if (!this.target || this.target.__overlaySetup) { | |
| 219 return; | |
| 220 } | |
| 221 if (!this.sizingTarget) { | |
| 222 this.sizingTarget = this.target; | |
| 223 } | |
| 224 this.target.__overlaySetup = true; | |
| 225 this.target.style.display = ''; | |
| 226 var transition = this.getTransition(); | |
| 227 if (transition) { | |
| 228 transition.setup(this.target); | |
| 229 } | |
| 230 var style = this.target.style; | |
| 231 var computed = getComputedStyle(this.target); | |
| 232 if (computed.position === 'static') { | |
| 233 style.position = 'fixed'; | |
| 234 } | |
| 235 style.outline = 'none'; | |
| 236 style.display = 'none'; | |
| 237 }, | |
| 238 | |
| 239 openedChanged: function() { | |
| 240 this.transitioning = true; | |
| 241 this.ensureTargetSetup(); | |
| 242 this.prepareRenderOpened(); | |
| 243 // async here to allow overlay layer to become visible. | |
| 244 this.async(function() { | |
| 245 this.target.style.display = ''; | |
| 246 // force layout to ensure transitions will go | |
| 247 this.target.offsetWidth; | |
| 248 this.renderOpened(); | |
| 249 }); | |
| 250 this.fire('core-overlay-open', this.opened); | |
| 251 }, | |
| 252 | |
| 253 // tasks which must occur before opening; e.g. making the element visible | |
| 254 prepareRenderOpened: function() { | |
| 255 if (this.opened) { | |
| 256 addOverlay(this); | |
| 257 } | |
| 258 this.prepareBackdrop(); | |
| 259 // async so we don't auto-close immediately via a click. | |
| 260 this.async(function() { | |
| 261 if (!this.autoCloseDisabled) { | |
| 262 this.enableElementListener(this.opened, document, | |
| 263 this.captureEventName, 'captureHandler', true); | |
| 264 } | |
| 265 }); | |
| 266 this.enableElementListener(this.opened, window, 'resize', | |
| 267 'resizeHandler'); | |
| 268 | |
| 269 if (this.opened) { | |
| 270 // force layout so SD Polyfill renders | |
| 271 this.target.offsetHeight; | |
| 272 this.discoverDimensions(); | |
| 273 // if we are showing, then take care when positioning | |
| 274 this.preparePositioning(); | |
| 275 this.positionTarget(); | |
| 276 this.updateTargetDimensions(); | |
| 277 this.finishPositioning(); | |
| 278 if (this.layered) { | |
| 279 this.layer.addElement(this.target); | |
| 280 this.layer.opened = this.opened; | |
| 281 } | |
| 282 } | |
| 283 }, | |
| 284 | |
| 285 // tasks which cause the overlay to actually open; typically play an | |
| 286 // animation | |
| 287 renderOpened: function() { | |
| 288 this.notifyResize(); | |
| 289 var transition = this.getTransition(); | |
| 290 if (transition) { | |
| 291 transition.go(this.target, {opened: this.opened}); | |
| 292 } else { | |
| 293 this.transitionend(); | |
| 294 } | |
| 295 this.renderBackdropOpened(); | |
| 296 }, | |
| 297 | |
| 298 // finishing tasks; typically called via a transition | |
| 299 transitionend: function(e) { | |
| 300 // make sure this is our transition event. | |
| 301 if (e && e.target !== this.target) { | |
| 302 return; | |
| 303 } | |
| 304 this.transitioning = false; | |
| 305 if (!this.opened) { | |
| 306 this.resetTargetDimensions(); | |
| 307 this.target.style.display = 'none'; | |
| 308 this.completeBackdrop(); | |
| 309 removeOverlay(this); | |
| 310 if (this.layered) { | |
| 311 if (!currentOverlay()) { | |
| 312 this.layer.opened = this.opened; | |
| 313 } | |
| 314 this.layer.removeElement(this.target); | |
| 315 } | |
| 316 } | |
| 317 this.fire('core-overlay-' + (this.opened ? 'open' : 'close') + | |
| 318 '-completed'); | |
| 319 this.applyFocus(); | |
| 320 }, | |
| 321 | |
| 322 prepareBackdrop: function() { | |
| 323 if (this.backdrop && this.opened) { | |
| 324 if (!this.scrim.parentNode) { | |
| 325 document.body.appendChild(this.scrim); | |
| 326 this.scrim.style.zIndex = currentOverlayZ() - 1; | |
| 327 } | |
| 328 trackBackdrop(this); | |
| 329 } | |
| 330 }, | |
| 331 | |
| 332 renderBackdropOpened: function() { | |
| 333 if (this.backdrop && getBackdrops().length < 2) { | |
| 334 this.scrim.classList.toggle('core-opened', this.opened); | |
| 335 } | |
| 336 }, | |
| 337 | |
| 338 completeBackdrop: function() { | |
| 339 if (this.backdrop) { | |
| 340 trackBackdrop(this); | |
| 341 if (getBackdrops().length === 0) { | |
| 342 this.scrim.parentNode.removeChild(this.scrim); | |
| 343 } | |
| 344 } | |
| 345 }, | |
| 346 | |
| 347 preparePositioning: function() { | |
| 348 this.target.style.transition = this.target.style.webkitTransition = 'none'
; | |
| 349 this.target.style.transform = this.target.style.webkitTransform = 'none'; | |
| 350 this.target.style.display = ''; | |
| 351 }, | |
| 352 | |
| 353 discoverDimensions: function() { | |
| 354 if (this.dimensions) { | |
| 355 return; | |
| 356 } | |
| 357 var target = getComputedStyle(this.target); | |
| 358 var sizer = getComputedStyle(this.sizingTarget); | |
| 359 this.dimensions = { | |
| 360 position: { | |
| 361 v: target.top !== 'auto' ? 'top' : (target.bottom !== 'auto' ? | |
| 362 'bottom' : null), | |
| 363 h: target.left !== 'auto' ? 'left' : (target.right !== 'auto' ? | |
| 364 'right' : null), | |
| 365 css: target.position | |
| 366 }, | |
| 367 size: { | |
| 368 v: sizer.maxHeight !== 'none', | |
| 369 h: sizer.maxWidth !== 'none' | |
| 370 }, | |
| 371 margin: { | |
| 372 top: parseInt(target.marginTop) || 0, | |
| 373 right: parseInt(target.marginRight) || 0, | |
| 374 bottom: parseInt(target.marginBottom) || 0, | |
| 375 left: parseInt(target.marginLeft) || 0 | |
| 376 } | |
| 377 }; | |
| 378 }, | |
| 379 | |
| 380 finishPositioning: function(target) { | |
| 381 this.target.style.display = 'none'; | |
| 382 this.target.style.transform = this.target.style.webkitTransform = ''; | |
| 383 // force layout to avoid application of transform | |
| 384 this.target.offsetWidth; | |
| 385 this.target.style.transition = this.target.style.webkitTransition = ''; | |
| 386 }, | |
| 387 | |
| 388 getTransition: function(name) { | |
| 389 return this.meta.byId(name || this.transition); | |
| 390 }, | |
| 391 | |
| 392 getFocusNode: function() { | |
| 393 return this.target.querySelector('[autofocus]') || this.target; | |
| 394 }, | |
| 395 | |
| 396 applyFocus: function() { | |
| 397 var focusNode = this.getFocusNode(); | |
| 398 if (this.opened) { | |
| 399 if (!this.autoFocusDisabled) { | |
| 400 focusNode.focus(); | |
| 401 } | |
| 402 } else { | |
| 403 focusNode.blur(); | |
| 404 if (currentOverlay() == this) { | |
| 405 console.warn('Current core-overlay is attempting to focus itself as ne
xt! (bug)'); | |
| 406 } else { | |
| 407 focusOverlay(); | |
| 408 } | |
| 409 } | |
| 410 }, | |
| 411 | |
| 412 positionTarget: function() { | |
| 413 // fire positioning event | |
| 414 this.fire('core-overlay-position', {target: this.target, | |
| 415 sizingTarget: this.sizingTarget, opened: this.opened}); | |
| 416 if (!this.dimensions.position.v) { | |
| 417 this.target.style.top = '0px'; | |
| 418 } | |
| 419 if (!this.dimensions.position.h) { | |
| 420 this.target.style.left = '0px'; | |
| 421 } | |
| 422 }, | |
| 423 | |
| 424 updateTargetDimensions: function() { | |
| 425 this.sizeTarget(); | |
| 426 this.repositionTarget(); | |
| 427 }, | |
| 428 | |
| 429 sizeTarget: function() { | |
| 430 this.sizingTarget.style.boxSizing = 'border-box'; | |
| 431 var dims = this.dimensions; | |
| 432 var rect = this.target.getBoundingClientRect(); | |
| 433 if (!dims.size.v) { | |
| 434 this.sizeDimension(rect, dims.position.v, 'top', 'bottom', 'Height'); | |
| 435 } | |
| 436 if (!dims.size.h) { | |
| 437 this.sizeDimension(rect, dims.position.h, 'left', 'right', 'Width'); | |
| 438 } | |
| 439 }, | |
| 440 | |
| 441 sizeDimension: function(rect, positionedBy, start, end, extent) { | |
| 442 var dims = this.dimensions; | |
| 443 var flip = (positionedBy === end); | |
| 444 var m = flip ? start : end; | |
| 445 var ws = window['inner' + extent]; | |
| 446 var o = dims.margin[m] + (flip ? ws - rect[end] : | |
| 447 rect[start]); | |
| 448 var offset = 'offset' + extent; | |
| 449 var o2 = this.target[offset] - this.sizingTarget[offset]; | |
| 450 this.sizingTarget.style['max' + extent] = (ws - o - o2) + 'px'; | |
| 451 }, | |
| 452 | |
| 453 // vertically and horizontally center if not positioned | |
| 454 repositionTarget: function() { | |
| 455 // only center if position fixed. | |
| 456 if (this.dimensions.position.css !== 'fixed') { | |
| 457 return; | |
| 458 } | |
| 459 if (!this.dimensions.position.v) { | |
| 460 var t = (window.innerHeight - this.target.offsetHeight) / 2; | |
| 461 t -= this.dimensions.margin.top; | |
| 462 this.target.style.top = t + 'px'; | |
| 463 } | |
| 464 | |
| 465 if (!this.dimensions.position.h) { | |
| 466 var l = (window.innerWidth - this.target.offsetWidth) / 2; | |
| 467 l -= this.dimensions.margin.left; | |
| 468 this.target.style.left = l + 'px'; | |
| 469 } | |
| 470 }, | |
| 471 | |
| 472 resetTargetDimensions: function() { | |
| 473 if (!this.dimensions || !this.dimensions.size.v) { | |
| 474 this.sizingTarget.style.maxHeight = ''; | |
| 475 this.target.style.top = ''; | |
| 476 } | |
| 477 if (!this.dimensions || !this.dimensions.size.h) { | |
| 478 this.sizingTarget.style.maxWidth = ''; | |
| 479 this.target.style.left = ''; | |
| 480 } | |
| 481 this.dimensions = null; | |
| 482 }, | |
| 483 | |
| 484 tapHandler: function(e) { | |
| 485 // closeSelector takes precedence since closeAttribute has a default non-n
ull value. | |
| 486 if (e.target && | |
| 487 (this.closeSelector && e.target.matches(this.closeSelector)) || | |
| 488 (this.closeAttribute && e.target.hasAttribute(this.closeAttribute))) { | |
| 489 this.toggle(); | |
| 490 } else { | |
| 491 if (this.autoCloseJob) { | |
| 492 this.autoCloseJob.stop(); | |
| 493 this.autoCloseJob = null; | |
| 494 } | |
| 495 } | |
| 496 }, | |
| 497 | |
| 498 // We use the traditional approach of capturing events on document | |
| 499 // to to determine if the overlay needs to close. However, due to | |
| 500 // ShadowDOM event retargeting, the event target is not useful. Instead | |
| 501 // of using it, we attempt to close asynchronously and prevent the close | |
| 502 // if a tap event is immediately heard on the target. | |
| 503 // TODO(sorvell): This approach will not work with modal. For | |
| 504 // this we need a scrim. | |
| 505 captureHandler: function(e) { | |
| 506 if (!this.autoCloseDisabled && (currentOverlay() == this)) { | |
| 507 this.autoCloseJob = this.job(this.autoCloseJob, function() { | |
| 508 this.close(); | |
| 509 }); | |
| 510 } | |
| 511 }, | |
| 512 | |
| 513 keydownHandler: function(e) { | |
| 514 if (!this.autoCloseDisabled && (e.keyCode == this.keyHelper.ESCAPE_KEY)) { | |
| 515 this.close(); | |
| 516 e.stopPropagation(); | |
| 517 } | |
| 518 }, | |
| 519 | |
| 520 /** | |
| 521 * Extensions of core-overlay should implement the `resizeHandler` | |
| 522 * method to adjust the size and position of the overlay when the | |
| 523 * browser window resizes. | |
| 524 * @method resizeHandler | |
| 525 */ | |
| 526 resizeHandler: function() { | |
| 527 this.updateTargetDimensions(); | |
| 528 }, | |
| 529 | |
| 530 // TODO(sorvell): these utility methods should not be here. | |
| 531 addElementListenerList: function(node, events) { | |
| 532 for (var i in events) { | |
| 533 this.addElementListener(node, i, events[i]); | |
| 534 } | |
| 535 }, | |
| 536 | |
| 537 removeElementListenerList: function(node, events) { | |
| 538 for (var i in events) { | |
| 539 this.removeElementListener(node, i, events[i]); | |
| 540 } | |
| 541 }, | |
| 542 | |
| 543 enableElementListener: function(enable, node, event, methodName, capture) { | |
| 544 if (enable) { | |
| 545 this.addElementListener(node, event, methodName, capture); | |
| 546 } else { | |
| 547 this.removeElementListener(node, event, methodName, capture); | |
| 548 } | |
| 549 }, | |
| 550 | |
| 551 addElementListener: function(node, event, methodName, capture) { | |
| 552 var fn = this._makeBoundListener(methodName); | |
| 553 if (node && fn) { | |
| 554 Polymer.addEventListener(node, event, fn, capture); | |
| 555 } | |
| 556 }, | |
| 557 | |
| 558 removeElementListener: function(node, event, methodName, capture) { | |
| 559 var fn = this._makeBoundListener(methodName); | |
| 560 if (node && fn) { | |
| 561 Polymer.removeEventListener(node, event, fn, capture); | |
| 562 } | |
| 563 }, | |
| 564 | |
| 565 _makeBoundListener: function(methodName) { | |
| 566 var self = this, method = this[methodName]; | |
| 567 if (!method) { | |
| 568 return; | |
| 569 } | |
| 570 var bound = '_bound' + methodName; | |
| 571 if (!this[bound]) { | |
| 572 this[bound] = function(e) { | |
| 573 method.call(self, e); | |
| 574 }; | |
| 575 } | |
| 576 return this[bound]; | |
| 577 } | |
| 578 | |
| 579 }, Polymer.CoreResizer)); | |
| 580 | |
| 581 // TODO(sorvell): This should be an element with private state so it can | |
| 582 // be independent of overlay. | |
| 583 // track overlays for z-index and focus managemant | |
| 584 var overlays = []; | |
| 585 function addOverlay(overlay) { | |
| 586 var z0 = currentOverlayZ(); | |
| 587 overlays.push(overlay); | |
| 588 var z1 = currentOverlayZ(); | |
| 589 if (z1 <= z0) { | |
| 590 applyOverlayZ(overlay, z0); | |
| 591 } | |
| 592 } | |
| 593 | |
| 594 function removeOverlay(overlay) { | |
| 595 var i = overlays.indexOf(overlay); | |
| 596 if (i >= 0) { | |
| 597 overlays.splice(i, 1); | |
| 598 setZ(overlay, ''); | |
| 599 } | |
| 600 } | |
| 601 | |
| 602 function applyOverlayZ(overlay, aboveZ) { | |
| 603 setZ(overlay.target, aboveZ + 2); | |
| 604 } | |
| 605 | |
| 606 function setZ(element, z) { | |
| 607 element.style.zIndex = z; | |
| 608 } | |
| 609 | |
| 610 function currentOverlay() { | |
| 611 return overlays[overlays.length-1]; | |
| 612 } | |
| 613 | |
| 614 var DEFAULT_Z = 10; | |
| 615 | |
| 616 function currentOverlayZ() { | |
| 617 var z; | |
| 618 var current = currentOverlay(); | |
| 619 if (current) { | |
| 620 var z1 = window.getComputedStyle(current.target).zIndex; | |
| 621 if (!isNaN(z1)) { | |
| 622 z = Number(z1); | |
| 623 } | |
| 624 } | |
| 625 return z || DEFAULT_Z; | |
| 626 } | |
| 627 | |
| 628 function focusOverlay() { | |
| 629 var current = currentOverlay(); | |
| 630 // We have to be careful to focus the next overlay _after_ any current | |
| 631 // transitions are complete (due to the state being toggled prior to the | |
| 632 // transition). Otherwise, we risk infinite recursion when a transitioning | |
| 633 // (closed) overlay becomes the current overlay. | |
| 634 // | |
| 635 // NOTE: We make the assumption that any overlay that completes a transition | |
| 636 // will call into focusOverlay to kick the process back off. Currently: | |
| 637 // transitionend -> applyFocus -> focusOverlay. | |
| 638 if (current && !current.transitioning) { | |
| 639 current.applyFocus(); | |
| 640 } | |
| 641 } | |
| 642 | |
| 643 var backdrops = []; | |
| 644 function trackBackdrop(element) { | |
| 645 if (element.opened) { | |
| 646 backdrops.push(element); | |
| 647 } else { | |
| 648 var i = backdrops.indexOf(element); | |
| 649 if (i >= 0) { | |
| 650 backdrops.splice(i, 1); | |
| 651 } | |
| 652 } | |
| 653 } | |
| 654 | |
| 655 function getBackdrops() { | |
| 656 return backdrops; | |
| 657 } | |
| 658 })(); | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1215543002:
Remove Polymer 0.5. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master