/**
@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
*/
import"../polymer/polymer-legacy.js";import{IronFitBehavior as e}from"../iron-fit-behavior/iron-fit-behavior.js";import{IronResizableBehavior as t}from"../iron-resizable-behavior/iron-resizable-behavior.js";import{dom as s}from"../polymer/lib/legacy/polymer.dom.js";import{useShadow as o}from"../polymer/lib/utils/settings.js";import{IronFocusablesHelper as i}from"./iron-focusables-helper.js";import{IronOverlayManager as n,IronOverlayManagerClass as r}from"./iron-overlay-manager.js";import{pushScrollLock as l,removeScrollLock as a}from"./iron-scroll-manager.js";export const IronOverlayBehaviorImpl={properties:{opened:{observer:"_openedChanged",type:Boolean,value:!1,notify:!0},canceled:{observer:"_canceledChanged",readOnly:!0,type:Boolean,value:!1},withBackdrop:{observer:"_withBackdropChanged",type:Boolean},noAutoFocus:{type:Boolean,value:!1},noCancelOnEscKey:{type:Boolean,value:!1},noCancelOnOutsideClick:{type:Boolean,value:!1},closingReason:{type:Object},restoreFocusOnClose:{type:Boolean,value:!1},allowClickThrough:{type:Boolean},alwaysOnTop:{type:Boolean},scrollAction:{type:String},_manager:{type:Object,value:n},_focusedChild:{type:Object}},listeners:{"iron-resize":"_onIronResize"},observers:["__updateScrollObservers(isAttached, opened, scrollAction)"],get backdropElement(){return this._manager.backdropElement},get _focusNode(){return this._focusedChild||s(this).querySelector("[autofocus]")||this},get _focusableNodes(){return i.getTabbableNodes(this)},ready:function(){this.__isAnimating=!1,this.__shouldRemoveTabIndex=!1,this.__firstFocusableNode=this.__lastFocusableNode=null,this.__rafs={},this.__restoreFocusNode=null,this.__scrollTop=this.__scrollLeft=null,this.__onCaptureScroll=this.__onCaptureScroll.bind(this),this.__rootNodes=null,this._ensureSetup()},attached:function(){this.opened&&this._openedChanged(this.opened),this._observer=s(this).observeNodes(this._onNodesChange)},detached:function(){for(var e in this._observer&&s(this).unobserveNodes(this._observer),this._observer=null,this.__rafs)null!==this.__rafs[e]&&cancelAnimationFrame(this.__rafs[e]);this.__rafs={},this._manager.removeOverlay(this),this.__isAnimating&&(this.opened?this._finishRenderOpened():(this._applyFocus(),this._finishRenderClosed()))},toggle:function(){this._setCanceled(!1),this.opened=!this.opened},open:function(){this._setCanceled(!1),this.opened=!0},close:function(){this._setCanceled(!1),this.opened=!1},cancel:function(e){this.fire("iron-overlay-canceled",e,{cancelable:!0}).defaultPrevented||(this._setCanceled(!0),this.opened=!1)},invalidateTabbables:function(){this.__firstFocusableNode=this.__lastFocusableNode=null},_ensureSetup:function(){this._overlaySetup||(this._overlaySetup=!0,this.style.outline="none",this.style.display="none")},_openedChanged:function(e){e?this.removeAttribute("aria-hidden"):this.setAttribute("aria-hidden","true"),this.isAttached&&(this.__isAnimating=!0,this.__deraf("__openedChanged",this.__openedChanged))},_canceledChanged:function(){this.closingReason=this.closingReason||{},this.closingReason.canceled=this.canceled},_withBackdropChanged:function(){this.withBackdrop&&!this.hasAttribute("tabindex")?(this.setAttribute("tabindex","-1"),this.__shouldRemoveTabIndex=!0):this.__shouldRemoveTabIndex&&(this.removeAttribute("tabindex"),this.__shouldRemoveTabIndex=!1),this.opened&&this.isAttached&&this._manager.trackBackdrop()},_prepareRenderOpened:function(){this.__restoreFocusNode=this._manager.deepActiveElement,this._preparePositioning(),this.refit(),this._finishPositioning(),this.noAutoFocus&&document.activeElement===this._focusNode&&(this._focusNode.blur(),this.__restoreFocusNode.focus())},_renderOpened:function(){this._finishRenderOpened()},_renderClosed:function(){this._finishRenderClosed()},_finishRenderOpened:function(){this.notifyResize(),this.__isAnimating=!1,this.fire("iron-overlay-opened")},_finishRenderClosed:function(){this.style.display="none",this.style.zIndex="",this.notifyResize(),this.__isAnimating=!1,this.fire("iron-overlay-closed",this.closingReason)},_preparePositioning:function(){this.style.transition=this.style.webkitTransition="none",this.style.transform=this.style.webkitTransform="none",this.style.display=""},_finishPositioning:function(){this.style.display="none",this.scrollTop=this.scrollTop,this.style.transition=this.style.webkitTransition="",this.style.transform=this.style.webkitTransform="",this.style.display="",this.scrollTop=this.scrollTop},_applyFocus:function(){if(this.opened)this.noAutoFocus||this._focusNode.focus();else{if(this.restoreFocusOnClose&&this.__restoreFocusNode){var e=this._manager.deepActiveElement;(e===document.body||composedContains(this,e))&&this.__restoreFocusNode.focus()}this.__restoreFocusNode=null,this._focusNode.blur(),this._focusedChild=null}},_onCaptureClick:function(e){this.noCancelOnOutsideClick||this.cancel(e)},_onCaptureFocus:function(e){if(this.withBackdrop){var t=s(e).path;-1===t.indexOf(this)?(e.stopPropagation(),this._applyFocus()):this._focusedChild=t[0]}},_onCaptureEsc:function(e){this.noCancelOnEscKey||this.cancel(e)},_onCaptureTab:function(e){if(this.withBackdrop){this.__ensureFirstLastFocusables();var t=e.shiftKey,s=t?this.__firstFocusableNode:this.__lastFocusableNode,o=t?this.__lastFocusableNode:this.__firstFocusableNode,i=!1;if(s===o)i=!0;else{var n=this._manager.deepActiveElement;i=n===s||n===this}i&&(e.preventDefault(),this._focusedChild=o,this._applyFocus())}},_onIronResize:function(){this.opened&&!this.__isAnimating&&this.__deraf("refit",this.refit)},_onNodesChange:function(){this.opened&&!this.__isAnimating&&(this.invalidateTabbables(),this.notifyResize())},__ensureFirstLastFocusables:function(){var e=this._focusableNodes;this.__firstFocusableNode=e[0],this.__lastFocusableNode=e[e.length-1]},__openedChanged:function(){this.opened?(this._prepareRenderOpened(),this._manager.addOverlay(this),this._applyFocus(),this._renderOpened()):(this._manager.removeOverlay(this),this._applyFocus(),this._renderClosed())},__deraf:function(e,t){var s=this.__rafs;null!==s[e]&&cancelAnimationFrame(s[e]),s[e]=requestAnimationFrame(function nextAnimationFrame(){s[e]=null,t.call(this)}.bind(this))},__updateScrollObservers:function(e,t,s){e&&t&&this.__isValidScrollAction(s)?("lock"===s&&(this.__saveScrollPosition(),l(this)),this.__addScrollListeners()):(a(this),this.__removeScrollListeners())},__addScrollListeners:function(){if(!this.__rootNodes){if(this.__rootNodes=[],o)for(var e=this;e;)e.nodeType===Node.DOCUMENT_FRAGMENT_NODE&&e.host&&this.__rootNodes.push(e),e=e.host||e.assignedSlot||e.parentNode;this.__rootNodes.push(document)}this.__rootNodes.forEach((function(e){e.addEventListener("scroll",this.__onCaptureScroll,{capture:!0,passive:!0})}),this)},__removeScrollListeners:function(){this.__rootNodes&&this.__rootNodes.forEach((function(e){e.removeEventListener("scroll",this.__onCaptureScroll,{capture:!0,passive:!0})}),this),this.isAttached||(this.__rootNodes=null)},__isValidScrollAction:function(e){return"lock"===e||"refit"===e||"cancel"===e},__onCaptureScroll:function(e){if(!(this.__isAnimating||s(e).path.indexOf(this)>=0))switch(this.scrollAction){case"lock":this.__restoreScrollPosition();break;case"refit":this.__deraf("refit",this.refit);break;case"cancel":this.cancel(e)}},__saveScrollPosition:function(){document.scrollingElement?(this.__scrollTop=document.scrollingElement.scrollTop,this.__scrollLeft=document.scrollingElement.scrollLeft):(this.__scrollTop=Math.max(document.documentElement.scrollTop,document.body.scrollTop),this.__scrollLeft=Math.max(document.documentElement.scrollLeft,document.body.scrollLeft))},__restoreScrollPosition:function(){document.scrollingElement?(document.scrollingElement.scrollTop=this.__scrollTop,document.scrollingElement.scrollLeft=this.__scrollLeft):(document.documentElement.scrollTop=document.body.scrollTop=this.__scrollTop,document.documentElement.scrollLeft=document.body.scrollLeft=this.__scrollLeft)}};const composedContains=(e,t)=>{for(let o=t;o;o=(s=o).assignedSlot||s.parentNode||s.host)if(o===e)return!0;var s;return!1};export const IronOverlayBehavior=[e,t,IronOverlayBehaviorImpl];