import{r as registerInstance,c as createEvent,h,g as getElement}from"./index-c948674f.js";var indexCss="taro-textarea-core{display:block;width:300px}taro-textarea-core .auto-height{height:auto}.taro-textarea{display:block;position:relative;border:0;width:100%;height:inherit;-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:auto;line-height:1.5}.taro-textarea:focus{outline:none}";function fixControlledValue(e){return e!==null&&e!==void 0?e:""}var Textarea=function(){function e(e){var t=this;registerInstance(this,e);this.onInput=createEvent(this,"input",7);this.onFocus=createEvent(this,"focus",7);this.onBlur=createEvent(this,"blur",7);this.onChange=createEvent(this,"change",7);this.onLineChange=createEvent(this,"linechange",7);this.handleInput=function(e){e.stopPropagation();t.handleLineChange();var n=e.target.value||"";t.onInput.emit({value:n,cursor:n.length})};this.handleFocus=function(e){e.stopPropagation();t.onFocus.emit({value:e.target.value})};this.handleBlur=function(e){e.stopPropagation();t.onBlur.emit({value:e.target.value})};this.handleChange=function(e){e.stopPropagation();t.onChange.emit({value:e.target.value})};this.handleLineChange=function(){var e=t.getNumberOfLines();if(e!==t.line){t.line=e;t.onLineChange.emit({height:t.textareaRef.clientHeight,lineCount:t.line})}};this.calculateContentHeight=function(e,t){var n=e.style.height,a=e.offsetHeight,i=e.scrollHeight,o=e.style.overflow,r=e.style.minHeight||null;if(a>=i){e.style.minHeight=0;e.style.height=a+t+"px";e.style.overflow="hidden";if(i<e.scrollHeight){while(e.offsetHeight>=e.scrollHeight){e.style.height=(a-=t)+"px"}while(e.offsetHeight<e.scrollHeight){e.style.height=a+++"px"}e.style.height=n;e.style.overflow=o;e.style.minHeight=r;return a}}else{return i}};this.getNumberOfLines=function(){var e=t.textareaRef,n=window.getComputedStyle?window.getComputedStyle(e):e.style,a=parseInt(n.lineHeight,10),i=t.calculateContentHeight(e,a),o=Math.floor(i/a);return o};this.value=undefined;this.placeholder=undefined;this.disabled=false;this.maxlength=140;this.autoFocus=false;this.autoHeight=false;this.name=undefined;this.nativeProps={};this.line=1}e.prototype.focus=function(){this.textareaRef.focus()};e.prototype.componentDidLoad=function(){var e=this;Object.defineProperty(this.el,"value",{get:function(){return e.textareaRef.value},set:function(t){return e.value=t},configurable:true});this.autoFocus&&this.textareaRef.focus()};e.prototype.render=function(){var e=this;var t=this,n=t.value,a=t.placeholder,i=t.disabled,o=t.maxlength,r=t.autoFocus,l=t.autoHeight,s=t.name,u=t.nativeProps,c=t.handleInput,g=t.handleFocus,f=t.handleBlur,p=t.handleChange;var d={};if(l){d.rows=this.line}return h("textarea",Object.assign({ref:function(t){if(t){e.textareaRef=t}},class:"taro-textarea ".concat(l?"auto-height":""),value:fixControlledValue(n),placeholder:a,name:s,disabled:i,maxlength:o,autofocus:r,onInput:c,onFocus:g,onBlur:f,onChange:p},u,d))};Object.defineProperty(e.prototype,"el",{get:function(){return getElement(this)},enumerable:false,configurable:true});return e}();Textarea.style=indexCss;export{Textarea as taro_textarea_core};
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