iapt-platform
/
mint
kopia lustrzana https://github.com/iapt-platform/mint.git


			
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							<!--键入[[显示术语下拉菜单-->
<html>
	<body>
		<style>
			.text_input>.textarea{
				padding: 5px;
				font-family: inherit;
				width: 100%;
				height: 100px;
				resize: vertical;
				font-size: 14px;
				line-height: 1;
				border: 1px solid #ddd;
				white-space: pre-wrap;
				word-break: break-all;
				z-index: 1;
				resize: vertical;
			}
			.text_input>.text_shadow{
				position: absolute;
				width: 100%;
				visibility: hidden;
			}
			.text_input .cursor{
				position: absolute;
				border-left: 1px solid #000;
			}
			.text_input>.menu{
				width: 200px;
				height:300px;
				background-color: aqua;
				box-shadow: #000;
				position:absolute;
				display: none;
				z-index: 100;
			}
			.text_input>.menu ul{
				list-style-type: none;
				margin: 0;
				padding: 0;
			}
			.text_input>.menu ul li{
				cursor: pointer;
			}
			.text_input>.menu ul li:hover{
				background-color: wheat;
			}
			.text_input>.menu .focus{
				color:red;
			}
			.term_at_menu_input{
				height:1em;
				border: 1px solid gray;
			}
			.text_input{
				width:100%;
				position: relative;
			}
		</style>

<h2>术语输入测试</h2>
<div id="kk" style="width:50%;"></div>

<h2>术语输入测试</h2>
<div id="mm" style="width:60%;"></div>


<script>
	var menuFocusIndex=0;
	var term_data=["amanussa","anadhiṭṭhita","anantarāya","anissaṭṭha","aniyata","antaravāsaka"];
	var term_input_text ;
	var term_input="";
	document.querySelector("#kk").innerHTML = term_render_text_input("test1 http://aa.org/?book=1&para=1");
	document.querySelector("#mm").innerHTML =  term_render_text_input("test1 http://aa.org/?book=1&para=1");
	function term_render_text_input(text){
		let html ="";
		html += '<div class="text_input" >';
		html += '<div class="menu"></div>';
		html += '<div class="textarea text_shadow"></div>';
		html += '<textarea class="textarea tran_sent_textarea" onfocus="text_input_textarea_focuse(this)">';
		html += text;
		html += '</textarea> ';
		html += '</div>';
		return html;
	}
	function term_set_word_list_data(el){
		term_data=["amanussa","anadhiṭṭhita","anantarāya","anissaṭṭha","aniyata","antaravāsaka"];
	}
	function text_input_textarea_focuse(el){
		term_set_word_list_data(el);
		term_input_text = el;
		term_input_text.onresize = function(){
			term_input_text.parentElement.querySelector(".text_shadow").style.height=term_input_text.style.height;
		}
		term_input_text.onkeydown = function (e) {
		term_input_text.style.height = term_input_text.parentElement.querySelector(".text_shadow").scrollHeight
		let menu = term_input_text.parentElement.querySelector('.menu');
		switch (e.key) {
			case "ArrowDown"://down arrow
				if(menu.style.display=="block"){
					menuFocusIndex++;
					if(menuFocusIndex>5){
						menuFocusIndex=5;
					}
					menu.innerHTML=TermAtRenderMenu({focus:menuFocusIndex});
					return false;					
				}
				break;
			case "ArrowUp"://up arrow
				if(menu.style.display=="block"){
					menuFocusIndex--;
					if(menuFocusIndex<0){
						menuFocusIndex=0;
					}
					menu.innerHTML=TermAtRenderMenu({focus:menuFocusIndex});
					return false;					
				}
			break;
			case "Enter":
				if(menu.style.display=="block"){
					term_insert(term_data[menuFocusIndex]);
					return false;
				}
				/*
				else{
					if(!e.shiftKey){
						return false;
					}
				}*/
				
				break;
			case "Escape":
				break;
			case "ArrowLeft":
				if(menu.style.display=="block"){
					return false;
				}
				break;
			case "ArrowRight":
				if(menu.style.display=="block"){
					return false;
				}
				break;
			case "Backspace":
				if(menu.style.display=="block"){
					if(term_input.length>0){
						term_input = term_input.slice(0,-1);
						menu.innerHTML=TermAtRenderMenu({focus:menuFocusIndex});						
					}
					return false;
				}
				break;
			default:
				if(menu.style.display=="block"){
					term_input += e.key;
					menu.innerHTML=TermAtRenderMenu({focus:menuFocusIndex});
					return false;

				}
				break;
		}
	}
		term_input_text.onkeyup = function (e) {
			let value = term_input_text.value
			let selectionStart = term_input_text.selectionStart
			let str1 = value.slice(0, selectionStart)
			let str2 = value.slice(selectionStart)
			let textNode1 = document.createTextNode(str1)
			let textNode2 = document.createTextNode(str2)
			let cursor = document.createElement('span')
			cursor.innerHTML = '&nbsp;'
			cursor.setAttribute('class','cursor')
			let mirror = term_input_text.parentElement.querySelector('.text_shadow')
			mirror.innerHTML = ''
			mirror.appendChild(textNode1)
			mirror.appendChild(cursor)
			mirror.appendChild(textNode2)
			let menu = term_input_text.parentElement.querySelector('.menu');	
			if(str1.slice(-2)=="[[" && menu.style.display!="block"){
				menuFocusIndex=0;
				menu.innerHTML=TermAtRenderMenu({focus:0});
				menu.style.display="block";
				menu.style.top=cursor.offsetTop+14;
				menu.style.left=cursor.offsetLeft;
			}

			if(e.key=="Escape"){
				term_at_menu_hide();
			}
			
			console.log(e);
			console.log(cursor.offsetLeft,cursor.offsetTop)
	}
	
	}

	function term_at_menu_hide(){
		let menu = term_input_text.parentElement.querySelector('.menu');
		menu.style.display="none";
		term_input="";
	}
	function term_insert(strTerm){
		let value = term_input_text.value;
		let selectionStart = term_input_text.selectionStart;
		let str1 = value.slice(0, selectionStart)
		let str2 = value.slice(selectionStart);
		//TODO 光标会跑到最下面
		term_input_text.value = str1+strTerm+"]]"+str2;
		term_at_menu_hide();
	}
	function TermAtRenderMenu(params) {
		
		let html="";
		html +="<div class='term_at_menu_input'>"+term_input+"|</div>";
		html +="<ul class='term_at_menu_ul'>";
		let index=0;
		let focusIndex = params.focus%term_data.length;
		for (const it of term_data) {
			if(term_input=="" || it.indexOf(term_input)!=-1){
				html +="<li ";
				if(focusIndex==index){
					html +="class='focus' "
				}
				html += "onclick=\"term_insert('"+it+"')\" ";
				index++;
				html +=">"+index+ ". "+it+"<li>";
			}

		}
		return html;
	}
	
	/*
	// element:  t.refs.textarea
function getCaretPosition(element) {
  let left;
  let top;
  if (document.selection) {
    element.focus();
    const range = document.selection.createRange();
    left = range.boundingLeft + element.scrollLeft;
    top = range.boundingTop + element.scrollTop;
  } else {
    const SHADOWEDITOR = '__shadow_editor__';
    const SHADOWEDITORTEXT = '__shadow_editor_text__';
    const SHADOWEDITORCARET = '__shadow_editor_caret__';
    const shadowEditor = element[SHADOWEDITOR] || document.createElement('div');
    const shadowEditorCaret = element[SHADOWEDITORCARET] || document.createElement('span');
    const shadowEditorText = element[SHADOWEDITORTEXT] || document.createElement('span');
    let focusOffset = { left: 0, top: 0 };
    if (!element[SHADOWEDITOR]) {
      // add shadpw element to element's cache
      element[SHADOWEDITOR] = shadowEditor;
      element[SHADOWEDITORCARET] = shadowEditorCaret;
      element[SHADOWEDITORTEXT] = shadowEditorText;
      // append shadow to document body
      shadowEditor.appendChild(shadowEditorText);
      shadowEditor.appendChild(shadowEditorCaret);
      document.body.appendChild(shadowEditor);
      // set shadow element's style
      const style = shadowEditor.style;
      const computed = window.getComputedStyle ? getComputedStyle(element) : element.currentStyle;  // currentStyle for IE < 9

      if (element.nodeName != 'INPUT') {
        // only for textarea
        style.whiteSpace = 'pre-wrap';
        style.wordWrap = 'break-word';
      } else {
        style.whiteSpace = 'nowrap';
      }

      style.position = 'absolute';
      style.overflow = 'hidden';
      style.visibility = 'hidden';
      properties.forEach((prop) => {
        style[prop] = computed[prop];
      });

      shadowEditorCaret.textContent = '|';
      shadowEditorCaret.style.cssText = 'display:inline-block;width:0;overflow:hidden;word-wrap:break-word;word-break:break-all;';
    }
    const offset = getElementOffset(element);
    shadowEditor.style.top = `${offset.top}px`;
    shadowEditor.style.left = `${offset.left}px`;
    const index = element.selectionEnd;
    const SHADOWEDITORCONTENT = element.value.substring(0, index);
    shadowEditorText.textContent = SHADOWEDITORCONTENT;

    shadowEditorCaret.style.display = 'inline-block';
    try { focusOffset = getElementOffset(shadowEditorCaret); } catch (e) { }
    shadowEditorCaret.style.display = 'none';
    left = focusOffset.left - element.scrollLeft;
    top = focusOffset.top - element.scrollTop;
    const winOffset = getScrollOffset();
    left -= winOffset.x;
    top -= winOffset.y;
  }
  return {
    left,
    top,
  };
}
	*/

	/*
如果你只是想获得输入框中光标的 offset 的话, 你可以用从 At.js 剥离出来的 jQuery 插件: Caret.js

可以是用AT-JS jquery插件来实现你需要的效果：

下载地址：

http://pan.baidu.com/share/link?shareid=495943&uk=386708086

使用方法：

$("input[name=message]").atWho("@",{
tpl: "<li id='${uid}' data-value='${name}'>${name} <small>${spacenote}</small></li>",
'data':friend_list
});
评论
但是如果你想做，你题目描述的东西的话，还是建议用插件。 这里有一个不错的jquery插件： http://ichord.github.io/At.js/

评论

	*/
</script>

	</body>
</html>