BackgridSelectDiffCell/backgrid-select-different-column.js at master · xsdlr/BackgridSelectDiffCell · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
(function(root, factory) {

    // CommonJS
    if (typeof exports == "object") {
        module.exports = factory(root,
            require("underscore"),
            require("backgrid"));
    }
    // Browser
    else factory(root, root._, root.Backgrid);

}(this, function(root, _, Backgrid) {

    "use strict";

    var SelectDiffFormatter = Backgrid.SelectDiffFormatter = function() {};
    SelectDiffFormatter.prototype = new Backgrid.CellFormatter();
    _.extend(SelectDiffFormatter.prototype, {

        fromRaw: function(rawValue, model) {
            var result = {};
            if (_.isObject(rawValue)) {
                if (!_.isArray(rawValue.option) || _.isEmpty(rawValue.option)) {
                    rawValue.option = [];
                }
                if (!_.isArray(rawValue.selected) || _.isEmpty(rawValue.selected)) {
                    rawValue.selected = [];
                };
                result.option = rawValue.option;
                result.selected = rawValue.selected;
            } else {
                result.option = result.selected = [];
            }
            return result;
        }
    });

    var SelectDiffCellEditor = Backgrid.Extension.SelectDiffCellEditor = Backgrid.SelectCellEditor.extend({
        render: function() {
            this.$el.empty();

            var model = this.model;
            var rawData = this.formatter.fromRaw(model.get(this.column.get("name")), model);
            var options = rawData.option;
            var selectedKeys = rawData.selected;

            for (var i = 0; i < options.length; i++) {
                var option = options[i];
                var text = option.value;
                var key = option.key;
                this.$el.append(this.template({
                    text: text,
                    value: key,
                    selected: _.indexOf(selectedKeys, key) > -1
                }));
            }

            this.delegateEvents();
            return this;
        },
        save: function(e) {
            var model = this.model;
            var column = this.column;
            var value = this.$el.val();
            var rawData = this.formatter.fromRaw(model.get(this.column.get("name")), model);

            value = _.isArray(value) ? value : value != null ? [value] : [];
            rawData.selected = value;
            model.set(column.get("name"), this.formatter.toRaw(rawData, model));
        }

    });

    /**
     * 渲染每行不同的选择框
     *
     * @return {Backgrid.Cell}
     */
    Backgrid.Extension.SelectDiffCell = Backgrid.SelectCell.extend({

        /** @property */
        editor: SelectDiffCellEditor,

        /** @property */
        delimiter: ', ',

        /** @property */
        formatter: SelectDiffFormatter,

        /**
           Initializer.

           @param {Object} options
           @param {Backbone.Model} options.model
           @param {Backgrid.Column} options.column

           @throws {TypeError} If `optionsValues` is undefined.
        */
        initialize: function(options) {
            Backgrid.SelectCell.__super__.initialize.apply(this, arguments);
            var _model = this.model.get(this.column.get("name"));
            if (_.isObject(_model)) {
                this.multiple = _model.multiple || this.multiple;
            }
            this.listenTo(this.model, "backgrid:edit", function(model, column, cell, editor) {
                if (column.get("name") == this.column.get("name")) {
                    editor.setOptionValues(this.optionValues);

                    editor.setMultiple(this.multiple);
                }
            });
        },

        render: function() {
            this.$el.empty();

            var model = this.model;
            var rawData = this.formatter.fromRaw(model.get(this.column.get("name")), model);
            var options = rawData.option;
            var selectedKeys = rawData.selected;

            var selectedText = [];
            var isSelected = false;
            for (var k = 0; k < selectedKeys.length; k++) {
                var selectedKey = selectedKeys[k];
                for (var i = 0; i < options.length; i++) {
                    var option = options[i];
                    var text = option.value;
                    var key = option.key;

                    if (key == selectedKey) {
                        selectedText.push(text);
                        isSelected = true;
                    }
                }
                if (!this.multiple && isSelected) {
                    break;
                }
            }
            this.$el.append(selectedText.join(this.delimiter));
            this.delegateEvents();
            return this;
        }
    });
}));