PROSAGA码农传奇-Sahara云大数据-等待图标的长过程块在ExtJS中呈现

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    可能太棘手了，但它确实显示了动画旋转轮，似乎工作得很好：
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   <pre>
    <code>
      internalSetAllColumn: function(column, newValue) {
    column.masterValue = newValue;
    column.header = '<div class="x-grid3-check-col-td loading-indicator">&#160;</div>'; // loading icon
    this.grid.getView().updateHeaders();
    var store = this.grid.getStore();
    var count = store.getCount();
    var step = 5;
    var times = (count / step) >> 0;
    var task = {
        run: function() {
            var last = step * task.taskRunCount;
            var first = last - step;
            if (first <= count) {
                var recs = store.getRange(first, last);
                Ext.each(recs, function(rec) {
                    rec.set(this.dataIndex, newValue);
                }, this);
            }
            if (task.taskRunCount > times) {
                column.renderHeaderCheck();
                this.grid.getView().updateHeaders();
                return false;
            }
        },
        interval: 1,
        scope: this
    };
    Ext.TaskMgr.start(task);
}

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  <div class =“snippet”data-lang =“js”data-hide =“true”data-console =“true”data-babel =“false”>
    <div class =“snippet-code snippet-Currently-hidden”>
       <pre class="snippet-code-js lang-js prettyprint-override">
        <code>
          /*global Ext */

Ext.grid.CheckColumn = function(config){
    Ext.apply(this, config);
    if(!this.id){
        this.id = Ext.id();
    }
    this.headerText = this.headerText || this.header || '&#160;';
    this.renderer = this.renderer.createDelegate(this);
};
Ext.grid.CheckColumn.prototype = {
    init: function(grid) {
        this.grid = grid;
        var column = this.grid.getColumnModel().getColumnById(this.id);
        column.masterValue = false;
        if (this.headerCheck) {
            column.renderHeaderCheck();
        }
        this.grid.on('headerclick', this.onHeaderClick, this);
        this.grid.on('render', function() {
            var view = this.grid.getView();
            view.mainBody.on('mousedown', this.onMouseDown, this);
            view.updateHeaders();
        }, this);
    }
    , dataIndex: ''
    , masterValue: false
    , width: 90
    , fixed: true
    , headerCheck: false
    , enableHeaderControl: true
    , onMouseDown: function(e, t) {
        if (!this.readonly) {
            if (Ext.fly(t).hasClass('x-grid3-cc-' + this.id)) {
                e.stopEvent();
                var editEvent = {};
                editEvent.row = this.grid.getView().findRowIndex(t);
                editEvent.column = this.grid.getColumnModel().findColumnIndex(this.dataIndex);
                editEvent.grid = this.grid;
                editEvent.field = this.dataIndex;
                editEvent.record = this.grid.store.getAt(editEvent.row);
                editEvent.originalValue = editEvent.record.data[this.dataIndex];
                editEvent.value = !editEvent.originalValue;
                editEvent.record.set(editEvent.field, editEvent.value);
                editEvent.grid.fireEvent('afteredit', editEvent);
            }
        }
    },

getCheckedCls: function(v) {
        return v === -1 ? 'x-grid3-check-col-gray' : (v ? 'x-grid3-check-col-on' : 'x-grid3-check-col');
    },

renderHeaderCheck: function() {
        this.header = '<div class="' + this.getCheckedCls(this.masterValue) + '">' + this.headerText + '</div>';
    },

onHeaderClick: function(grid, columnIndex, event) {
        var colModel = grid.getColumnModel();
        var cIndex = colModel.getIndexById(this.id);
        if (cIndex == columnIndex && this.enableHeaderControl !== false && this.headerCheck) {
            var column = colModel.getColumnById(this.id);
            var newValue = !column.masterValue;
            this.internalSetAllColumn(column, newValue);
            colModel.fireEvent("headerchange", colModel, columnIndex, column.header);
            this.grid.getView().updateHeaders();
        }
    },

renderer: function(v, p, record, rowIndex, colIndex, store) {
        p.css += ' x-grid3-check-col-td';
        return '<div class="' + this.getCheckedCls(v) + ' x-grid3-cc-' + this.id + '"> </div>';
    },

internalSetAllColumn: function(column, newValue) {
        column.masterValue = newValue;
        column.header = '<div class="x-grid3-check-col-td loading-indicator">&#160;</div>'; // loading icon
        this.grid.getView().updateHeaders();
        var store = this.grid.getStore();
        var count = store.getCount();
        var step = 5;
        var times = (count / step) >> 0;
        var task = {
            run: function() {
                var last = step * task.taskRunCount;
                var first = last - step;
                if (first <= count) {
                    var recs = store.getRange(first, last);
                    Ext.each(recs, function(rec) {
                        rec.set(this.dataIndex, newValue);
                    }, this);
                }
                if (task.taskRunCount > times) {
                    column.renderHeaderCheck();
                    this.grid.getView().updateHeaders();
                    return false;
                }
            },
            interval: 1,
            scope: this
        };
        Ext.TaskMgr.start(task);
    },

setAllColumn: function(columnIndex, newValue) {
        var colModel = this.grid.getColumnModel();
        var colId = colModel.getColumnId(columnIndex);
        var column = colModel.getColumnById(colId);
        this.internalSetAllColumn(column, newValue);
        this.grid.getView().updateHeaders();
    }
};

// -----------------------------------------
// End of plugin - Beginning of example code
// -----------------------------------------

var chkColCountry = new Ext.grid.CheckColumn({ dataIndex: 'State.After', width: 50, headerCheck: true });

var dsCountries = new Ext.data.ArrayStore({
            fields: ['Id', 'Name']
            , data: [["US","United States"],["CA","Canada"],["AF","Afghanistan"],["AL","Albania"],["DZ","Algeria"],["DS","American Samoa"],["AD","Andorra"],["AO","Angola"],["AI","Anguilla"],["AQ","Antarctica"],["AG","Antigua and/or Barbuda"],["AR","Argentina"],["AM","Armenia"],["AW","Aruba"],["AU","Australia"],["AT","Austria"],["AZ","Azerbaijan"],["BS","Bahamas"],["BH","Bahrain"],["BD","Bangladesh"],["BB","Barbados"],["BY","Belarus"],["BE","Belgium"],["BZ","Belize"],["BJ","Benin"],["BM","Bermuda"],["BT","Bhutan"],["BO","Bolivia"],["BA","Bosnia and Herzegovina"],["BW","Botswana"],["BV","Bouvet Island"],["BR","Brazil"],["IO","British lndian Ocean Territory"],["BN","Brunei Darussalam"],["BG","Bulgaria"],["BF","Burkina Faso"],["BI","Burundi"],["KH","Cambodia"],["CM","Cameroon"],["CV","Cape Verde"],["KY","Cayman Islands"],["CF","Central African Republic"],["TD","Chad"],["CL","Chile"],["CN","China"],["CX","Christmas Island"],["CC","Cocos (Keeling) Islands"],["CO","Colombia"],["KM","Comoros"],["CG","Congo"],["CK","Cook Islands"],["CR","Costa Rica"],["HR","Croatia (Hrvatska)"],["CU","Cuba"],["CY","Cyprus"],["CZ","Czech Republic"],["DK","Denmark"],["DJ","Djibouti"],["DM","Dominica"],["DO","Dominican Republic"],["TP","East Timor"],["EC","Ecudaor"],["EG","Egypt"],["SV","El Salvador"],["GQ","Equatorial Guinea"],["ER","Eritrea"],["EE","Estonia"],["ET","Ethiopia"],["FK","Falkland Islands (Malvinas)"],["FO","Faroe Islands"],["FJ","Fiji"],["FI","Finland"],["FR","France"],["FX","France, Metropolitan"],["GF","French Guiana"],["PF","French Polynesia"],["TF","French Southern Territories"],["GA","Gabon"],["GM","Gambia"],["GE","Georgia"],["DE","Germany"],["GH","Ghana"],["GI","Gibraltar"],["GR","Greece"],["GL","Greenland"],["GD","Grenada"],["GP","Guadeloupe"],["GU","Guam"],["GT","Guatemala"],["GN","Guinea"],["GW","Guinea-Bissau"],["GY","Guyana"],["HT","Haiti"],["HM","Heard and Mc Donald Islands"],["HN","Honduras"],["HK","Hong Kong"],["HU","Hungary"],["IS","Iceland"],["IN","India"],["ID","Indonesia"],["IR","Iran (Islamic Republic of)"],["IQ","Iraq"],["IE","Ireland"],["IL","Israel"],["IT","Italy"],["CI","Ivory Coast"],["JM","Jamaica"],["JP","Japan"],["JO","Jordan"],["KZ","Kazakhstan"],["KE","Kenya"],["KI","Kiribati"],["KP","Korea, Democratic People's Republic of"],["KR","Korea, Republic of"],["KW","Kuwait"],["KG","Kyrgyzstan"],["LA","Lao People's Democratic Republic"],["LV","Latvia"],["LB","Lebanon"],["LS","Lesotho"],["LR","Liberia"],["LY","Libyan Arab Jamahiriya"],["LI","Liechtenstein"],["LT","Lithuania"],["LU","Luxembourg"],["MO","Macau"],["MK","Macedonia"],["MG","Madagascar"],["MW","Malawi"],["MY","Malaysia"],["MV","Maldives"],["ML","Mali"],["MT","Malta"],["MH","Marshall Islands"],["MQ","Martinique"],["MR","Mauritania"],["MU","Mauritius"],["TY","Mayotte"],["MX","Mexico"],["FM","Micronesia, Federated States of"],["MD","Moldova, Republic of"],["MC","Monaco"],["MN","Mongolia"],["MS","Montserrat"],["MA","Morocco"],["MZ","Mozambique"],["MM","Myanmar"],["NA","Namibia"],["NR","Nauru"],["NP","Nepal"],["NL","Netherlands"],["AN","Netherlands Antilles"],["NC","New Caledonia"],["NZ","New Zealand"],["NI","Nicaragua"],["NE","Niger"],["NG","Nigeria"],["NU","Niue"],["NF","Norfork Island"],["MP","Northern Mariana Islands"],["NO","Norway"],["OM","Oman"],["PK","Pakistan"],["PW","Palau"],["PA","Panama"],["PG","Papua New Guinea"],["PY","Paraguay"],["PE","Peru"],["PH","Philippines"],["PN","Pitcairn"],["PL","Poland"],["PT","Portugal"],["PR","Puerto Rico"],["QA","Qatar"],["RE","Reunion"],["RO","Romania"],["RU","Russian Federation"],["RW","Rwanda"],["KN","Saint Kitts and Nevis"],["LC","Saint Lucia"],["VC","Saint Vincent and the Grenadines"],["WS","Samoa"],["SM","San Marino"],["ST","Sao Tome and Principe"],["SA","Saudi Arabia"],["SN","Senegal"],["SC","Seychelles"],["SL","Sierra Leone"],["SG","Singapore"],["SK","Slovakia"],["SI","Slovenia"],["SB","Solomon Islands"],["SO","Somalia"],["ZA","South Africa"],["GS","South Georgia South Sandwich Islands"],["ES","Spain"],["LK","Sri Lanka"],["SH","St. Helena"],["PM","St. Pierre and Miquelon"],["SD","Sudan"],["SR","Suriname"],["SJ","Svalbarn and Jan Mayen Islands"],["SZ","Swaziland"],["SE","Sweden"],["CH","Switzerland"],["SY","Syrian Arab Republic"],["TW","Taiwan"],["TJ","Tajikistan"],["TZ","Tanzania, United Republic of"],["TH","Thailand"],["TG","Togo"],["TK","Tokelau"],["TO","Tonga"],["TT","Trinidad and Tobago"],["TN","Tunisia"],["TR","Turkey"],["TM","Turkmenistan"],["TC","Turks and Caicos Islands"],["TV","Tuvalu"],["UG","Uganda"],["UA","Ukraine"],["AE","United Arab Emirates"],["GB","United Kingdom"],["UM","United States minor outlying islands"],["UY","Uruguay"],["UZ","Uzbekistan"],["VU","Vanuatu"],["VA","Vatican City State"],["VE","Venezuela"],["VN","Vietnam"],["VG","Virigan Islands (British)"],["VI","Virgin Islands (U.S.)"],["WF","Wallis and Futuna Islands"],["EH","Western Sahara"],["YE","Yemen"],["YU","Yugoslavia"],["ZR","Zaire"],["ZM","Zambia"],["ZW","Zimbabwe"]]
            , autoLoad: false
        });

var cmCountry = new Ext.grid.ColumnModel([
            chkColCountry
            , { id: 'Id', header: 'Id', dataIndex: 'Id', width: 40 }
            , { id: 'Name', header: 'CountryName', dataIndex: 'Name', width: 460 }
            , { id: 'After', header: 'After', dataIndex: 'State.After', hidden: true }
        ]);

var grdCountries = new Ext.grid.GridPanel({
            store: dsCountries
            , cm: cmCountry
            , plugins: chkColCountry
            , enableHdMenu: false
        });

var win = new Ext.Window({
          layout: 'fit'
          , height: 190
          , width: 600
          , items: [grdCountries]
        });
        win.show();
        </code>
      </pre>
       <pre class="snippet-code-html lang-html prettyprint-override">
        <code>
          <link href="//cdnjs.cloudflare.com/ajax/libs/extjs/3.4.1-1/resources/css/ext-all.css" rel="stylesheet"/>
<script src="//cdnjs.cloudflare.com/ajax/libs/extjs/3.4.1-1/adapter/ext/ext-base.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/extjs/3.4.1-1/ext-all.js"></script>
        </code>
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