| dojo.require("dojo.io.script") |
| dojo.require("dojox.rpc.Service"); |
| |
| // model that works with Yahoo Search API |
| dojo.declare("dojox.grid.data.yahooSearch", dojox.grid.data.Dynamic, { |
| constructor: function(inFields, inData, inSearchNode){ |
| this.rowsPerPage = 20; |
| this.searchNode = inSearchNode; |
| this.fieldNames = dojo.map(inFields, "return item.name;"); |
| this.yahoo = new dojox.rpc.Service( |
| dojo.moduleUrl("dojox.rpc.SMDLibrary", "yahoo.smd") |
| ); |
| }, |
| // server send / receive |
| send: function(inAsync, inParams, inOnReceive, inOnError){ |
| var d = this.yahoo.imageSearch( |
| dojo.mixin({ |
| results: this.rowsPerPage, |
| query: this.getQuery() |
| }, inParams) |
| ); |
| d.addCallbacks( |
| dojo.hitch(this, "receive", inOnReceive, inOnError), |
| dojo.hitch(this, "error", inOnError) |
| ); |
| this.onSend(inParams); |
| return d; |
| }, |
| receive: function(inOnReceive, inOnError, inData){ |
| try{ |
| inData = inData.ResultSet; |
| inOnReceive(inData); |
| this.onReceive(inData); |
| }catch(e){ |
| if(inOnError){ |
| inOnError(inData); |
| } |
| } |
| }, |
| error: function(inOnError, inErr) { |
| var m = 'io error: ' + inErr.message; |
| alert(m); |
| if (inOnError) |
| inOnError(m); |
| }, |
| encodeParam: function(inName, inValue) { |
| return dojo.string.substitute('&${0}=${1}', [inName, inValue]); |
| }, |
| getQuery: function(){ |
| return dojo.byId(this.searchNode).value.replace(/ /g, '+'); |
| }, |
| fetchRowCount: function(inCallback){ |
| this.send(true, inCallback); |
| }, |
| // request data |
| requestRows: function(inRowIndex, inCount){ |
| inRowIndex = (inRowIndex == undefined ? 0 : inRowIndex); |
| var params = { |
| start: inRowIndex + 1 |
| } |
| this.send(true, params, dojo.hitch(this, this.processRows)); |
| }, |
| // server callbacks |
| processRows: function(inData){ |
| for(var i=0, l=inData.totalResultsReturned, s=inData.firstResultPosition; i<l; i++){ |
| this.setRow(inData.Result[i], s - 1 + i); |
| } |
| // yahoo says 1000 is max results to return |
| var c = Math.min(1000, inData.totalResultsAvailable); |
| if(this.count != c){ |
| this.setRowCount(c); |
| this.allChange(); |
| this.onInitializeData(inData); |
| } |
| }, |
| getDatum: function(inRowIndex, inColIndex){ |
| var row = this.getRow(inRowIndex); |
| var field = this.fields.get(inColIndex); |
| return (inColIndex == undefined ? row : (row ? row[field.name] : field.na)); |
| }, |
| // events |
| onInitializeData: function(){ }, |
| onSend: function(){ }, |
| onReceive: function(){ } |
| }); |
| |
| // report |
| modelChange = function(){ |
| var n = dojo.byId('rowCount'); |
| if(n){ |
| n.innerHTML = dojo.string.substitute('about ${0} row(s)', [model.count]); |
| } |
| } |
| |
| |
| // some data formatters |
| getCellData = function(inCell, inRowIndex, inField){ |
| var m = inCell.grid.model; |
| return m.getDatum(inRowIndex, inField); |
| } |
| |
| formatLink = function(inData, inRowIndex){ |
| if(!inData){ return ' '; } |
| var text = getCellData(this, inRowIndex, this.extraField); |
| return dojo.string.substitute( |
| '<a target="_blank" href="${href}">${text}</a>', |
| { href: inData, text: text } |
| ); |
| }; |
| |
| formatImage = function(inData, inRowIndex){ |
| if(!inData){ return ' '; } |
| var info = getCellData(this, inRowIndex, this.extraField); |
| var o = { |
| href: inData, |
| src: info.Url, |
| width: info.Width, |
| height: info.Height |
| } |
| return dojo.string.substitute( |
| '<a href="${href}" target="_blank"><img border=0 src="${src}" width="${width}" height="${height}"></a>', o); |
| }; |
| |
| formatDate = function(inDatum, inRowIndex){ |
| if(!inDatum){ return ' '; } |
| var d = new Date(inDatum * 1000); |
| return dojo.string.substitute( |
| "${0}/${1}/${2}", |
| [ d.getMonth()+1, d.getDate(), d.getFullYear() ] |
| ); |
| }; |
| |
| formatDimensions = function(inData, inRowIndex){ |
| if(!inData){ return ' '; } |
| var w = inData, h = getCellData(this, inRowIndex, this.extraField); |
| return w + ' x ' + h; |
| } |
