iHealth-app-demo/html/mygl/js/gengduoyiyuan.js

	// 基本信息（包括userAgent、上个页面传递的数据）
var baseInfo = null,
	// 基础环境信息（包括当前webview）
	baseEnv = null;
	
	// 搜索框
var $searchbar = $('.searchbar'),
	// 搜索输入框
	$searchbarInput = $('.searchbar input'),
	// 搜索取消按钮
	$searchCancelBtn = $('.searchbar-cancel'),
	// 搜索框下面悬浮的搜索提示
	$searchSuggest = $('#search_suggest_text'),
	// 搜索结果展示容器
	$searchtResult = $('#search_result'),
	// 搜索无结果时显示
	$noResultWrap = $('#no_result_wrap'),
	$yiyuanList = $('#yiyuan_list');
	
	// 分页查询最后一条记录Id
var lastId = 0,
	// iscroll 滚动条实例
	iscroller;
	
	
// 获取基本信息（包括userAgent、上个页面传递的数据）
var getBaseInfoPromise  = function() {
		// 登录的相关信息
	var userAgent = plus && JSON.parse(plus.storage.getItem("userAgent"))
	return {
		userAgent: userAgent,
		accessData: baseEnv.webview.accessData
	}
},
// 获取基础环境信息
getBaseEnvPromise = function () {
	
	var env = {
		webview: plus&&plus.webview.currentWebview()
	};

	return Promise.resolve().then(function(res) {
		return env;
	});
},
// $el: $('.c-content-warp')
getRowProps = function ($el) {
	var $textEllipsis = $el.find('.j-text-ellipsis'),
		$text = $textEllipsis.eq(0),
		$chart = $text.text('a'),
		enWidth = $chart.width(),
		$chart = $text.text('中'),
		zhWidth = $chart.width(),
		lineHeight = parseFloat($chart.css("lineHeight"), 10),
		rowHeight = $chart.height();
	$chart.text('');
	return {
		chartWidth: {
			zh: zhWidth,
			en: enWidth
		},
		rowHeight: Math.max(rowHeight, lineHeight),
		rowWidth: $el.width()
	};
},
replaceAll = function (text, arr) {
	var html = text;
	if(!arr || !arr.length) return html;
	_.each(arr,function(kw) {
		var reg = new RegExp(kw+"(?!>)","gi");
		html = html.replace(reg,'<em>'+kw+'</em>');
	});
	return html;
},
highlineKeyword = function ($el,searchText) {
	var props = getRowProps($el),
		chartWidth = props.chartWidth,
		rowHeight = props.rowHeight,
		rowWidth = props.rowWidth,
		// 每行显示字符数（以中文字符为标准计算）
		chartNum = Math.floor(rowWidth / chartWidth.zh),
		// 排除指定数量字符所占宽度
		exceptNum = 0,
		// 行数
		rowNum = 1,
		// 预计显示总字符数
		expectedNum = chartNum * rowNum - exceptNum,
		$target = $el.find('.j-text-ellipsis'),
		// 目标文本
		text = $target.attr('data-text').trim(),
		length = text.length,
		// 关键字数组
		kws = searchText&&searchText.trim().replace(/\s+/g," ").split(" ");

	var fidx = 0,preFidx,diff = 0;
	$target.html(replaceAll(text, kws));
	if(Math.floor($target.height() / rowHeight) <= rowNum) {
		return ;
	}
	if(text.length > expectedNum) {
		fidx = text.indexOf(kws[0])+kws[0].length-1;
		diff = fidx - expectedNum + 1;
		preFidx =  fidx;
		diff = (diff<0)?0:diff;
		var preChar = (diff>0)?"...":"";
		$target.html(preChar+replaceAll(text.slice(diff,preFidx+1), kws)+"...");
		while((Math.floor($target.height() / rowHeight) <= rowNum) && (preFidx < length)) {
			preFidx++;
			$target.html(preChar+replaceAll(text.slice(diff,preFidx+1), kws)+"...");
		}
		if(preFidx == length && (Math.floor($target.height() / rowHeight) <= rowNum)) {
			diff = diff>0?(diff - 1):0;
			$target.html(preChar+replaceAll(text.slice(diff,preFidx), kws));
		} else if((Math.floor($target.height() / rowHeight) > rowNum)) {
			$target.html(preChar+replaceAll(text.slice(diff,preFidx), kws)+"...");
		}
	}
},
ellipsisText = function ($elements, searchText) {
	//$el.ellipsis({ row: 2});
	_.each($elements,function(el) {
		highlineKeyword($(el),searchText)
	});
},

// 初始化“医院”视图列表
initYiYuanViewList = function(data,keyword,isAppend) {
	var html = template("org_li_tmpl", {list: data.list})
	if(isAppend === true) {
		$yiyuanList.append(html)
	} else {
		$yiyuanList.html(html);
	}
	
	ellipsisText($yiyuanList.find('.c-content-warp'),keyword);
},

// 分页查询列表
searchByPaging = function () {
	var kw = $searchbarInput.val();
	// TODO 示例示例搜索参数
	// id: 上次搜索结果列表最后一条记录id，type:6(进行中)，query:搜素关键字，pageSize:每页条数
	var url = "doctor/hospitals",
	params = {id:0,key: kw, type:1, pagesize:15};
	getReqPromise(url,params).then(function(res){
		var data = res;
 		lastId = getLastId(data);
		if(!iscroller) {
			iscroller = initScroller($searchtResult,url,
			function() { // 传递分页参数
				return $.extend({},params,{id:lastId});
			},function(data) {
				lastId = getLastId(data) || lastId;
				
				var kw = $searchbarInput.val();
				initYiYuanViewList(data,kw,true);
				iscroller.refresh();
			});
		}

		if(!data.list || !data.list.length) {
			$searchtResult.hide();
			$noResultWrap.show();
		} else {
			$noResultWrap.hide();
			initYiYuanViewList(data,kw);
		}
		
		iscroller.refresh();
	}).catch(function(e) {
		console && console.error(e)
	});
},
// 滚动条分页实例初始化
initScroller = function($el,url,getData,pullUpAction) {
	var scroller = $el.initScroll({pullDown: false,pullUpAction: function() {
		var data = getData();
		getReqPromise(url,data).then(function(data) {
			if(pullUpAction && $.isFunction(pullUpAction)) {
				pullUpAction(data);
				updatePullUpText(scroller,data.list);
			}
		})
	}});
	
	return scroller;
},
// 获取分页搜索返回的最后一条记录的id
getLastId = function(data) {
	var lastObj = data.list && data.list.length && data.list[data.list.length-1];
	// 最后一条记录
	if(lastObj) {
		return lastObj.id;
	} else {
		return null
	}
},
// 更新分页上拉加载的提示文本
updatePullUpText= function(scroller,list) {
	var $wrap = $(scroller.wrapper),
		$pullupLabel = $wrap.find('.pullUpLabel');
	if(!list || !list.length) {
		$pullupLabel.text('没有更多');
	} else {
		$pullupLabel.text('上拉加载更多');
	}
	scroller.on('refresh',function() {
		
		if(!list || !list.length) {
			$pullupLabel.text('没有更多');
		} else {
			$pullupLabel.text('上拉加载更多');
		}
	});
},
// 绑定页面事件
bindEvents = function () {
	$searchbarInput.on('tap',function() {
		mui.fire(baseEnv.webview.opener(),"focusSearchInput");
		mui.back();
	});
};
// 页面业务处理流程开始
new Promise(function(resolve, reject) {
	// TODO 临时放开
	// resolve(true);
	mui.plusReady(function() {
		// plus已经准备好，可以往下执行
		resolve(true);
	});
}).then(function() {
	
	// 获取基础环境信息
	return getBaseEnvPromise().then(function(env) {
		baseEnv = env;
	}).then(function() {
		// 获取登录医生信息
		baseInfo = getBaseInfoPromise();
		$searchbar.searchBar();
		var keyword = baseInfo.accessData && baseInfo.accessData.keyword;
		if(keyword) {
			$searchbarInput.val(keyword);
			searchByPaging();
			$searchtResult.show();
		} else {
			$searchtResult.hide();
		}
		// 绑定页面事件
		bindEvents();
	})
}).catch(function(e) {
	plus.nativeUI.closeWaiting();
	console && console.error(e);
});

template.helper('getImgUrl', function(str){
    var str = getImgUrl(str);
    if(str == ''){
        str = '../images/hospital_default.png';
    }
    
    return str;
});