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89 lines
2.7 KiB
89 lines
2.7 KiB
8 years ago
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/**
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* 简单的复选下拉框控件, 适用于数据量少的情况
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* 封装了字段处理逻辑
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*
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* Created by GUY on 2015/10/29.
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* @class BI.AbstractValueChooser
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* @extends BI.Widget
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*/
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BI.AbstractValueChooser = BI.inherit(BI.Widget, {
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_const: {
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perPage: 100
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},
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_defaultConfig: function () {
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return BI.extend(BI.AbstractValueChooser.superclass._defaultConfig.apply(this, arguments), {
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items: null,
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itemsCreator: BI.emptyFn,
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cache: true
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});
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},
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_valueFormatter: function (v) {
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var text = v;
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if (BI.isNotNull(this.items)) {
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BI.some(this.items, function (i, item) {
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if (item.value === v) {
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text = item.text;
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return true;
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}
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});
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}
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return text;
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},
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_getItemsByTimes: function (items, times) {
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var res = [];
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for (var i = (times - 1) * this._const.perPage; items[i] && i < times * this._const.perPage; i++) {
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res.push(items[i]);
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}
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return res;
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},
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_hasNextByTimes: function (items, times) {
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return times * this._const.perPage < items.length;
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},
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_itemsCreator: function (options, callback) {
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var self = this, o = this.options;
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if (!o.cache || !this.items) {
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o.itemsCreator({}, function (items) {
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self.items = items;
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call(items);
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});
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} else {
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call(this.items);
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}
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function call(items) {
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var keywords = (options.keywords || []).slice();
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if (options.keyword) {
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keywords.push(options.keyword);
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}
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BI.each(keywords, function (i, kw) {
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var search = BI.Func.getSearchResult(items, kw);
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items = search.matched.concat(search.finded);
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});
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if (options.selectedValues) {//过滤
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var filter = BI.makeObject(options.selectedValues, true);
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items = BI.filter(items, function (i, ob) {
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return !filter[ob.value];
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});
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}
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if (options.type === BI.MultiSelectCombo.REQ_GET_ALL_DATA) {
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callback({
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items: items
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});
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return;
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}
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if (options.type === BI.MultiSelectCombo.REQ_GET_DATA_LENGTH) {
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callback({count: items.length});
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return;
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}
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callback({
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items: self._getItemsByTimes(items, options.times),
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hasNext: self._hasNextByTimes(items, options.times)
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});
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}
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}
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});
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