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test_yahoo_images.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>dojox.Grid - Image Search Test</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"></meta>
<style>
@import "../_grid/Grid.css";
body {
font-size: 0.9em;
font-family: Geneva, Arial, Helvetica, sans-serif;
}
.grid {
height: 30em;
width: 51em;
border: 1px solid silver;
}
#info {
width: 700px;
}
</style>
<script type="text/javascript" src="../../../dojo/dojo.js" djConfig="isDebug:false, parseOnLoad: true"></script>
<script type="text/javascript">
dojo.require("dojox.grid.Grid");
dojo.require("dojox.grid._data.model");
dojo.require("dojo.parser");
</script>
<script type="text/javascript" src="yahooSearch.js"></script>
<script type="text/javascript">
// model fields
imageFields = [
{ name: 'Title', na: '' },
{ name: 'Thumbnail', na: ''},
{ name: 'Summary', na: '' },
{ name: 'Url', na: '' },
{ name: 'FileSize', na: ''},
{ name: 'Height', na: ''},
{ name: 'Width', na: ''}
];
// create data model
var model = new dojox.grid.data.yahooSearch(imageFields, null, "searchInput");
model.url = 'http://search.yahooapis.com/ImageSearchService/V1/imageSearch';
model.observer(this);
// report some model send/receive status
model.onSend = function(inParams) {
dojo.byId('sendInfo').innerHTML = dojo.string.substitute('Request rows ${0} to ${1}.&nbsp&nbsp;', [inParams.start, inParams.start + inParams.results -1]);
}
model.onReceive = function(inData) {
dojo.byId('receiveInfo').innerHTML = dojo.string.substitute('Receive rows ${0} to ${1}.&nbsp&nbsp;', [inData.firstResultPosition, inData.firstResultPosition + inData.totalResultsReturned-1]);
}
// Define grid structure
// remove the height from the header image cell / row cells have a default height so there's less adjustment when thumb comes in.
beforeImageRow = function(inRowIndex, inSubRows) {
inSubRows[0].hidden = (inRowIndex == -1);
}
var imageLayout = [
{ onBeforeRow: beforeImageRow,
cells: [
[ { name: 'Image', cellStyles: "height: 100px;", styles: "text-align: center;", width: 12, field: 3, extraField: 1, formatter: formatImage },
{ name: 'Image', cellStyles: "height: 100px;", styles: "text-align: center;", width: 12, field: 3, extraField: 1, formatter: formatImage },
{ name: 'Image', cellStyles: "height: 100px;", styles: "text-align: center;", width: 12, field: 3, extraField: 1, formatter: formatImage },
{ name: 'Image', cellStyles: "height: 100px;", styles: "text-align: center;", width: 12, field: 3, extraField: 1, formatter: formatImage }
]
]}
];
// Create grid subclass to function as we need to display images only.
// adds indirection between model row and grid row.
dojo.declare("dojox.ImageGrid", dojox.Grid, {
postCreate: function() {
this.inherited(arguments);
this.modelDatumChange = this.modelRowChange;
this.colCount = this.layout.cells.length;
},
getDataRowIndex: function(inCell, inRowIndex) {
var r = inCell.index + Math.floor(inRowIndex * this.colCount);
return r;
},
// called in cell context
get: function(inRowIndex) {
var r = this.grid.getDataRowIndex(this, inRowIndex);
return dojox.Grid.prototype.get.call(this, r);
},
modelAllChange: function(){
this.rowCount = Math.ceil(this.model.getRowCount() / this.colCount);
this.updateRowCount(this.rowCount);
},
modelRowChange: function(inData, inRowIndex) {
if (inRowIndex % this.colCount == this.colCount - 1 || inRowIndex == this.model.count - 1)
this.updateRow(Math.floor(inRowIndex / this.colCount));
}
});
getCellData = function(inCell, inRowIndex, inField) {
var m = inCell.grid.model, r = inCell.grid.getDataRowIndex(inCell, inRowIndex);
return m.getDatum(r, inField);
}
// execute search
doSearch = function() {
model.clearData();
model.setRowCount(0);
grid.render();
grid.resize();
model.requestRows();
}
keypress = function(e) {
if (e.keyCode == dojo.keys.ENTER)
doSearch();
}
dojo.addOnLoad(function() {
dojo.connect(dojo.byId("searchInput"), "keypress", keypress);
doSearch();
});
</script>
</head>
<body>
<div style="font-weight: bold; padding-bottom: 0.25em;">dojox.Grid - Image Search Test</div>
<input id="searchInput" type="text" value="apple">&nbsp;&nbsp;
<button onclick="doSearch()">Search</button><br>
<br>
<div jsId="grid" class="grid" structure="imageLayout" dojoType="dojox.ImageGrid" model="model"></div>
<br>
<div id="info">
<div id="rowCount" style="float: left"></div>
<div style="float: right">
<div id="sendInfo" style="text-align: right"></div>
<div id="receiveInfo" style="text-align: right"></div>
</div>
</div>
<br /><br />
<p>Note: requires PHP for proxy.</p>
</body>
</html>

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