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<!--
This file is a demo of the OpenSearchStore, a simple wrapper to any OpenSearch compliant
search engine.
Note, the simple proxy requires a curl-enabled PHP install
-->
<html>
<head>
<title>Demo of OpenSearchStore</title>
<style type="text/css">
@import "../../../dijit/themes/tundra/tundra.css";
@import "../../../dojo/resources/dojo.css";
@import "../../../dijit/tests/css/dijitTests.css";
@import "./openSearchDemo.css";
</style>
<script type="text/javascript" src="../../../dojo/dojo.js" djConfig="isDebug: true, parseOnLoad: true"></script>
<script type="text/javascript">
dojo.require("dojo.parser");
dojo.require("dijit.form.TextBox");
dojo.require("dijit.form.Button");
dojo.require("dijit.form.FilteringSelect");
dojo.require("dijit.form.CheckBox");
dojo.require("dijit.form.NumberSpinner");
dojo.require("dijit.Tree");
dojo.require("dojox.data.OpenSearchStore");
function init(){
var fViewWidgets = [];
//Set up an onComplete handler for OpenSearchData
function onComplete(items, request){
if(items.length > 0){
var ul = dojo.byId("searchResults");
var test;
var li;
for(var i=0; i<items.length; i++){
li = dojo.doc.createElement("li");
li.innerHTML = openSearchStore.getValue(items[i], "content");
ul.appendChild(li);
}
}
statusWidget.attr('value', "PROCESSING COMPLETE.");
}
//What to do if a search fails...
function onError(error, request){
statusWidget.attr('value', "PROCESSING ERROR.");
}
//Function to invoke the search of the openSearchStore
function invokeSearch(){
var tbody = dojo.byId("searchResults");
while(tbody.childNodes.length){
var node = tbody.childNodes.item(0);
node.parentNode.removeChild(node);
}
var request = {
query: {},
onComplete: onComplete,
onError: onError
};
if(searchTermsWidget){
var searchTerms = searchTermsWidget.attr('value');
if(searchTerms && searchTerms !== ""){
var searchTermsArray = searchTerms.split(" ");
searchTerms = "";
for(var i = 0; i < searchTermsArray.length; i++){
searchTerms = searchTerms + searchTermsArray[i];
if(i < (searchTermsArray.length - 1)){
searchTerms += ","
}
}
request.query.searchTerms = searchTerms;
}
}
if(countWidget){
request.count = countWidget.attr('value');
}
if(statusWidget){
statusWidget.attr('value', "PROCESSING REQUEST");
}
openSearchStore.fetch(request);
}
//Lastly, link up the search event.
dojo.connect(dijit.byId("searchButton"), 'onClick', invokeSearch);
var currentArgs = {url: 'http://intertwingly.net/search/'};
var oldProcess = null;
function setTransform(state){
if(state){
oldProcess = openSearchStore.processItem;
switch(currentArgs.url){
case 'http://intertwingly.net/search/':
openSearchStore.processItem = intertwinglyTransform;
break;
case 'http://www.shutterpoint.com/opensearch.xml':
openSearchStore.processItem = shutterpointTransform;
break;
case 'http://technorati.com/osd.xml':
openSearchStore.processItem = technoratiTransform;
break;
}
}else if(oldProcess !== null){
openSearchStore.processItem = oldProcess;
}
}
dojo.connect(dijit.byId('transformItem'), 'onChange', function(state){
setTransform(state);
});
dojo.connect(dijit.byId('urlSelector'), 'onChange', function(args){
currentArgs = dojo.fromJson(args);
currentArgs.url = 'openSearchProxy.php?osd=true&url='+currentArgs.url;
openSearchStore.close();
openSearchStore = new dojox.data.OpenSearchStore(currentArgs);
if(dijit.byId('transformItem').checked){
setTransform(true);
}
});
var intertwinglyTransform = function(item, attribute){
function removeAll(/*NodeList*/list){
while(list.length) {
var node = list.item(0);
node.parentNode.removeChild(node);
}
}
var content = item.node.getElementsByTagName("content").item(0);
// Remove all blockquote elements
removeAll(content.getElementsByTagName("blockquote"));
// Remove all pre-formatted elements
removeAll(content.getElementsByTagName("pre"));
return openSearchStore._getNodeXml(content, true);
};
var shutterpointTransform = function(item, attribute){
var description = item.node.getElementsByTagName("description").item(0);
var div = dojo.doc.createElement("div");
div.innerHTML = description.childNodes.item(0).nodeValue;
//Of the description children, remove the divs (to only leave the images)
for(var i=0; i<div.childNodes.length; i++){
var node = div.childNodes.item(i);
if(node.tagName.toLowerCase() === "div")
node.parentNode.removeChild(node);
}
return openSearchStore._getNodeXml(div, true);
};
var technoratiTransform = function(item, attribute){
function removeAll(/*NodeList*/list){
while(list.length) {
var node = list.item(0);
node.parentNode.removeChild(node);
}
}
removeAll(item.node.getElementsByTagName("blockquote"));
return item.innerHTML;
};
}
dojo.addOnLoad(init);
</script>
</head>
<body class="tundra">
<h1>DEMO: OpenSearchStore Search</h1>
<hr />
<h3>Description:</h3>
<p>
This simple demo shows how services, such as an OpenSearch compliant search service, can be wrapped by the datastore API. In this demo, you can search public search engines through a simple OpenSearchStore by specifying a series of search terms (separated by spaces) to search on. The results will be displayed below the search box.
</p>
<p>
<b>NOTE: This demo makes use of a simple PHP based proxy script. The proxy script requires cURL support in PHP. Without cURL support, the demo will throw errors.</b>
</p>
<label for="urlSelector">URL of OpenSearchDocument:</label>
<select dojoType="dijit.form.FilteringSelect"
id="urlSelector"
name="urlSelector"
autoComplete="true">
<option value="{url: 'http://intertwingly.net/search/'}">http://intertwingly.net/search/</option>
<option value="{url: 'http://www.shutterpoint.com/opensearch.xml'}">http://www.shutterpoint.com/opensearch.xml</option>
<option value="{url: 'http://technorati.com/osd.xml', itemPath: '.hentry'}">http://technorati.com/osd.xml</option>
</select>
<label for="transformItem">Apply transform function?</label>
<input dojoType="dijit.form.CheckBox"
type="checkbox"
id="transformItem"
name="transformItem">
</input>
<hr />
<label for="status">Status:</label>
<div dojoType="dijit.form.TextBox" maxLength="50" id="status" name="status" jsId="statusWidget" disabled="true"></div>
<label for="searchTerms">Search For:</label>
<div dojoType="dijit.form.TextBox" maxLength="50" id="searchTerms" name="searchTerms" jsId="searchTermsWidget" value="javascript"></div>
<label for="count">Number of Results:</label>
<div id="count"
name="count"
jsId="countWidget"
dojoType="dijit.form.NumberSpinner"
value="20"
constraints="{min:1,max:20}">
</div>
<div dojoType="dijit.form.Button" label="Search" id="searchButton" jsId="searchButtonWidget"></div>
<hr/>
<div dojoType="dojox.data.OpenSearchStore"
url="openSearchProxy.php?osd=true&url=http://intertwingly.net/search/"
jsId="openSearchStore">
</div>
<ul id="searchResults"></ul>
</body>
</html>
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