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mathias |
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// model that works with Yahoo Search API
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dojo.declare("dojox.grid.data.yahooSearch", dojox.grid.data.dynamic,
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function(inFields, inData) {
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this.rowsPerPage = 20;
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this.fieldNames = [];
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for (var i=0, f; (f=inFields[i]); i++)
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this.fieldNames.push(f.name);
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}, {
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clearData: function() {
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turbo.widgets.TurboGrid.data.dynamic.prototype.clearData.apply(this, arguments);
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},
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// server send / receive
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encodeParam: function(inName, inValue) {
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return turbo.printf('&%s=%s', inName, inValue);
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},
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getParams: function(inParams) {
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var url = this.url;
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url += '?appid=turboajax';
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inParams = inParams || {};
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inParams.output = 'json';
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inParams.results = this.rowsPerPage;
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inParams.query = turbo.$('searchInput').value.replace(/ /g, '+');
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for (var i in inParams)
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if (inParams[i] != undefined)
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url += this.encodeParam(i, inParams[i]);
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return url;
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},
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send: function(inAsync, inParams, inOnReceive, inOnError) {
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var p = this.getParams(inParams);
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dojo.io.bind({
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url: "support/proxy.php",
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method: "post",
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content: {url: p },
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contentType: "application/x-www-form-urlencoded; charset=utf-8",
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mimetype: 'text/json',
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sync: !inAsync,
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load: turbo.bindArgs(this, "receive", inOnReceive, inOnError),
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error: turbo.bindArgs(this, "error", inOnError)
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});
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this.onSend(inParams);
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},
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receive: function(inOnReceive, inOnError, inEvt, inData) {
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try {
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inData = inData.ResultSet;
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inOnReceive(inData);
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this.onReceive(inData);
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} catch(e) {
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if (inOnError)
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inOnError(inData);
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}
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},
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error: function(inOnError, inTyp, inErr) {
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var m = 'io error: ' + inErr.message;
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alert(m);
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if (inOnError)
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inOnError(m);
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},
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fetchRowCount: function(inCallback) {
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this.send(true, inCallback );
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},
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// request data
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requestRows: function(inRowIndex, inCount) {
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inRowIndex = (inRowIndex == undefined ? 0 : inRowIndex);
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var params = {
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start: inRowIndex + 1
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}
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this.send(true, params, turbo.bindArgs(this, this.processRows));
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},
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// server callbacks
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processRows: function(inData) {
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for (var i=0, l=inData.totalResultsReturned, s=inData.firstResultPosition; i<l; i++) {
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this.setRow(inData.Result[i], s - 1 + i);
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}
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// yahoo says 1000 is max results to return
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var c = Math.min(1000, inData.totalResultsAvailable);
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if (this.count != c) {
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this.setRowCount(c);
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this.allChange();
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this.onInitializeData(inData);
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}
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},
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getDatum: function(inRowIndex, inColIndex) {
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var row = this.getRow(inRowIndex);
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var field = this.fields.get(inColIndex);
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return (inColIndex == undefined ? row : (row ? row[field.name] : field.na));
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},
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// events
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onInitializeData: turbo.nop,
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onSend: turbo.nop,
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onReceive: turbo.nop
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});
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// report
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modelChange = function() {
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var n = turbo.$('rowCount');
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if (n)
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n.innerHTML = turbo.printf('about %s row(s)', model.count);
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}
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// some data formatters
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formatLink = function(inData, inRowIndex) {
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if (!inData[0] || !inData[1])
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return ' ';
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return turbo.supplant('<a target="_blank" href="{href}">{text}</a>', {href: inData[0], text: inData[1] });
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};
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formatImage = function(inData, inRowIndex) {
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if (!inData[0] || !inData[1])
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return ' ';
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var o = {
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href: inData[0],
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src: inData[1].Url,
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width: inData[1].Width,
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height: inData[1].Height
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}
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return turbo.supplant('<a href="{href}" target="_blank"><img border=0 src="{src}" width="{width}" height="{height}"></a>', o);
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};
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formatDate = function(inDatum, inRowIndex) {
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if (inDatum == '')
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return ' ';
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var d = new Date(inDatum * 1000);
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return turbo.printf('%s/%s/%s', d.getMonth(), d.getDate(), d.getFullYear());
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};
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formatDimensions = function(inData, inRowIndex) {
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if (!inData[0] || !inData[1])
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return ' ';
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return inData[0] + ' x ' + inData[1];
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}
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