jellyfin-web/dashboard-ui/bower_components/emby-webcomponents/emby-textarea/emby-textarea.js

define(["layoutManager","browser","css!./emby-textarea","registerElement"],function(layoutManager,browser){"use strict";function autoGrow(textarea,maxLines){function reset(){textarea.rows=1,offset=self.getOffset(textarea),self.rows=textarea.rows||1,self.lineHeight=textarea.scrollHeight/self.rows-offset/self.rows,self.maxAllowedHeight=self.lineHeight*maxLines-offset}function autogrowFn(){if((!self.lineHeight||self.lineHeight<=0)&&reset(),self.lineHeight<=0)return textarea.style.overflowY="scroll",textarea.style.height="auto",void(textarea.rows=3);var newHeight=0,hasGrown=!1;textarea.scrollHeight-offset>self.maxAllowedHeight?(textarea.style.overflowY="scroll",newHeight=self.maxAllowedHeight):(textarea.style.overflowY="hidden",textarea.style.height="auto",newHeight=textarea.scrollHeight,hasGrown=!0),textarea.style.height=newHeight+"px"}var self=this;void 0===maxLines&&(maxLines=999),self.getOffset=function(textarea){for(var style=window.getComputedStyle(textarea,null),props=["paddingTop","paddingBottom"],offset=0,i=0;i<props.length;i++)offset+=parseInt(style[props[i]]);return offset};var offset;textarea.addEventListener("input",autogrowFn),textarea.addEventListener("focus",autogrowFn),textarea.addEventListener("valueset",autogrowFn),autogrowFn()}var EmbyTextAreaPrototype=Object.create(HTMLTextAreaElement.prototype),elementId=0,supportsFloatingLabel=!1;if(Object.getOwnPropertyDescriptor&&Object.defineProperty){var descriptor=Object.getOwnPropertyDescriptor(HTMLTextAreaElement.prototype,"value");if(descriptor&&descriptor.configurable){var baseSetMethod=descriptor.set;descriptor.set=function(value){baseSetMethod.call(this,value),this.dispatchEvent(new CustomEvent("valueset",{bubbles:!1,cancelable:!1}))},Object.defineProperty(HTMLTextAreaElement.prototype,"value",descriptor),supportsFloatingLabel=!0}}EmbyTextAreaPrototype.createdCallback=function(){this.id||(this.id="embytextarea"+elementId,elementId++)},EmbyTextAreaPrototype.attachedCallback=function(){if(!this.classList.contains("emby-textarea")){this.rows=1,this.classList.add("emby-textarea");var parentNode=this.parentNode,label=this.ownerDocument.createElement("label");label.innerHTML=this.getAttribute("label")||"",label.classList.add("textareaLabel"),supportsFloatingLabel&&"date"!==this.type||label.classList.add("nofloat"),label.htmlFor=this.id,parentNode.insertBefore(label,this);var div=document.createElement("div");div.classList.add("emby-textarea-selectionbar"),parentNode.insertBefore(div,this.nextSibling),this.addEventListener("focus",function(){label.classList.add("textareaLabelFocused"),label.classList.remove("textareaLabelUnfocused")}),this.addEventListener("blur",function(){label.classList.remove("textareaLabelFocused"),label.classList.add("textareaLabelUnfocused")}),this.label=function(text){label.innerHTML=text},new autoGrow(this)}},document.registerElement("emby-textarea",{prototype:EmbyTextAreaPrototype,extends:"textarea"})});