add getAreaLabels, getAreaIds, setAddress APIs

@@ -78,6 +78,14 @@ function toggleDistItem() {
     }
 }
 
+// 设置请求URL
+function setRequestUrl(config, areaId) {
+    var urlArr = config.url.split(config.resources + '/');
+
+    urlArr[1] = areaId;
+    return urlArr.join(config.resources + '/');
+}
+
 // 重置下一级文本显示和值
 function resetNextLevel(level, config) {
     $('#level_' + level + '_panel').empty()
@@ -88,23 +96,57 @@ function resetNextLevel(level, config) {
                                           .next().val('');
 }
 
+// 选择特定省份，城市，或区县
+function selectDistItem(options) {
+    var level = options.level,                              // 当前级别
+        distElement = options.target,                       // 选择特定项
+        currAreaId = distElement.attr('id').split('_')[1],  // 当前选择areaId
+        distItem = $('#level_' + level + '_panel').prev(),  // 请选择...
+        currPanel = options.panel,                          // 当前区域列表项
+        distItemAreaId = options.distItemAreaId,            // 当前选中areaId
+        config = options.config;
+
+    if (distElement.hasClass('checked')) {
+        // TODO
+        // distElement.removeClass('checked');
+    } else {
+        currPanel.find('span.checked').removeClass('checked').prev().hide();
+        distElement.addClass('checked').prev().show();
+        distItem.find('.indicator-name')
+                .html(distElement.text())
+                .next()
+                .val(currAreaId);
+
+        // 填充下一级
+        if (level < 0) {
+            level = distElement.parents('.items-panel').attr('id').split('_')[1];
+        }
+
+        config.url = setRequestUrl(config, currAreaId);
+
+        // 选择之后关闭当前panel
+        // distItem.trigger('click');
+
+        // 当前点击的和已选择的不同，再渲染下一级目录
+        if (level && distItemAreaId !== currAreaId) {
+            resetNextLevel(level - 1, config);
+            $(config.el).trigger('ca.afterInit', [config, level - 1]);
+        }
+    }
+}
+
 // 获取初始化数据
 function fetchInitialData(evt, config, level) {
-    var distItem,  //  请选择...
-        distItemAreaId = $('.items-indicator .open input').val(),
+    var distItemAreaId = $('.items-indicator .open input').val(),
         ajaxSettings = $.extend({}, config.ajaxSettings, {
             url: config.url
         });
 
     var ulElement = $('<ul/>'),
-        liElement,
-        distElement;
+        liElement;
 
-    var urlArr;
-
-    // 当前选中区域id
-    var currAreaId,
-        currPanel;
+    // 当前选中区域列表
+    var currPanel;
 
     $.ajax(ajaxSettings).done(function(res) {
         // 渲染后台区域信息列表
@@ -130,40 +172,117 @@ function fetchInitialData(evt, config, level) {
 
         // 选择区域
         currPanel.off('click', '.dist-name').on('click', '.dist-name', function() {
-            distElement = $(this);
-            currAreaId = distElement.attr('id').split('_')[1];
-            distItem = $('#level_' + level + '_panel').prev();
+            selectDistItem({
+                level: level,
+                target: $(this),
+                panel: currPanel,
+                distItemAreaId: distItemAreaId,
+                config: config
+            });
+
+            // distElement = $(this);
+            // currAreaId = distElement.attr('id').split('_')[1];
+            // distItem = $('#level_' + level + '_panel').prev();
+
+            // if (distElement.hasClass('checked')) {
+            //     // TODO
+            //     // distElement.removeClass('checked');
+            // } else {
+            //     currPanel.find('span.checked').removeClass('checked').prev().hide();
+            //     distElement.addClass('checked').prev().show();
+            //     distItem.find('.indicator-name')
+            //             .html(distElement.text())
+            //             .next()
+            //             .val(currAreaId);
+
+            //     // 填充下一级
+            //     if (level < 0) {
+            //         level = distElement.parents('.items-panel').attr('id').split('_')[1];
+            //     }
+
+            //     config.url = setRequestUrl(config, currAreaId);
+
+            //     // 选择之后关闭当前panel
+            //     // distItem.trigger('click');
+
+            //     // 当前点击的和已选择的不同，再渲染下一级目录
+            //     if (level && distItemAreaId !== currAreaId) {
+            //         resetNextLevel(level - 1, config);
+            //         $(config.el).trigger('ca.afterInit', [config, level - 1]);
+            //     }
+            // }
+        });
+    }).fail(function() {
+        // 如果出错，将下级所有都重置
+        var from = level;
 
-            if (distElement.hasClass('checked')) {
-                // TODO
-                // distElement.removeClass('checked');
+        while (from >= 0) {
+            resetNextLevel(from, config);
+            from--;
+        }
+    });
+}
+
+// 设置地址
+function setAddress(evt, config, level, areaId) {
+    var ajaxSettings = $.extend({}, config.ajaxSettings, {
+            url: config.url
+        }),
+        liElement,
+        ulElement = $('<ul/>'),
+        currPanel,
+        label,
+        distVal,
+        distItemAreaId = $('.items-indicator .open input').val();
+
+
+    $.ajax(ajaxSettings).done(function(res) {
+        $(res.data).each(function(index, item) {
+            liElement = $('<li/>');
+
+            // 设置目标区域check状态
+            if (item.value === areaId) {
+                label = item.text;
+                distVal = item.value;
+
+                $('<span class="check-icon iconfont" style="display: inline;">&#xe60b;</span>').appendTo(liElement);
+                $('<span/>', {
+                    class: 'dist-name checked',
+                    title: label,
+                    text: label,
+                    id: 'area_' + item.value
+                }).appendTo(liElement);
             } else {
-                currPanel.find('span.checked').removeClass('checked').prev().hide();
-                distElement.addClass('checked').prev().show();
-                distItem.find('.indicator-name')
-                        .html(distElement.text())
-                        .next()
-                        .val(currAreaId);
-
-                // 填充下一级
-                if (level < 0) {
-                    level = distElement.parents('.items-panel').attr('id').split('_')[1];
-                }
-
-                urlArr = config.url.split(config.resources + '/');
-                urlArr[1] = currAreaId;
-                config.url = urlArr.join(config.resources + '/');
-
-                // 选择之后关闭当前panel
-                // distItem.trigger('click');
-
-                // 当前点击的和已选择的不同，再渲染下一级目录
-                if (level && distItemAreaId !== currAreaId) {
-                    resetNextLevel(level - 1, config);
-                    $(config.el).trigger('ca.afterInit', [config, level - 1]);
-                }
+                $('<span class="check-icon iconfont">&#xe60b;</span>').appendTo(liElement);
+                $('<span/>', {
+                    class: 'dist-name',
+                    title: item.text,
+                    text: item.text,
+                    id: 'area_' + item.value
+                }).appendTo(liElement);
             }
+
+            liElement.appendTo(ulElement);
+
+            ulElement.appendTo($(config.el).find('#level_' + level + '_panel').empty().removeClass('empty'));
         });
+
+        // 设置label文本 和 设置areaId
+        currPanel = $('#level_' + level + '_panel');
+        currPanel.prev().find('.indicator-name').text(label)
+                                               .next().val(distVal);
+
+        // 侦听选择
+        currPanel.off('click', '.dist-name').on('click', '.dist-name', function() {
+            selectDistItem({
+                level: level,
+                target: $(this),
+                panel: currPanel,
+                distItemAreaId: distItemAreaId,
+                config: config
+            });
+        });
+
     }).fail(function() {
         // 如果出错，将下级所有都重置
         var from = level;
@@ -185,6 +304,7 @@ function CascadingAddress(options) {
 
     element.on('ca.afterInit', fetchInitialData);
     element.on('click', '.dist-item', toggleDistItem);
+    element.on('ca.setAddr', setAddress);
 
     // 绑定自定义事件处理
     $.each(widget.config, function(key, value) {
@@ -274,6 +394,83 @@ CascadingAddress.prototype.init = function() {
     el.trigger('ca.onCreated');
 };
 
+// 获取地址文本
+CascadingAddress.prototype.getAreaLabels = function() {
+    var el = $(this.config.el),
+        result = [];
+
+    el.find('.indicator-name').each(function() {
+        if ($(this).next().val() !== '') {
+            result.push($(this).text());
+        }
+    });
+
+    return result.join(',');
+};
+
+// 获取地址ID
+CascadingAddress.prototype.getAreaIds = function() {
+    var el = $(this.config.el),
+        result = [],
+        target;
+
+    el.find('input').each(function() {
+        target = $(this);
+        if (target.val() !== '') {
+            result.push($(this).val());
+        }
+    });
+
+    if (result.length) {
+        return result.join(',');
+    } else {
+        return '';
+    }
+};
+
+// 设置区域
+// {
+//     "province": "32",
+//     "city": "3201",
+//     "dist": "320102"
+// }
+CascadingAddress.prototype.setAddress = function(targetAddr) {
+    var key,
+        distIds = ['0'],  // 省份请求areaId=0
+        distLen,
+        cursor,         // 游标
+        currentLevels = $('.items-indicator>li').length,  // 目前存在几级
+        areaId,         // 请求areaId
+        defaultId,      // 设置areaId
+        config = this.config,
+        $el = $(config.el);
+
+    if (typeof targetAddr === 'object') {
+        for (key in targetAddr) {
+            if(targetAddr.hasOwnProperty(key)) {
+                distIds.push(targetAddr[key]);    
+            }
+        }
+
+        // 标识需要渲染几级
+        distLen = distIds.sort().length;
+        cursor = distLen;
+
+        // 最后一个level是0
+        while (distLen > 1) {
+            // 请求从array[0], 判断值从array[1]
+            areaId = distIds[cursor - distLen];
+            defaultId = distIds[cursor - distLen + 1];
+            config.url = setRequestUrl(config, areaId);
+            $el.trigger('ca.setAddr', [config, currentLevels - 1, defaultId]);
+            distLen--;
+            currentLevels--;
+        }
+    } else {
+        console.error('target address must be a json object');
+    }
+};
+
 module.exports = function(options) {
     return new CascadingAddress(options);
 };