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<b><a href='http://mapbuilder.sourceforge.net'>Community Map Builder</a> 27 Apr 2008</b></em>
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<h2>WebServiceForm.js</h2>
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<h4>Summary</h4>
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No overview generated for 'WebServiceForm.js'<BR/><BR/>
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<b>Class Summary</b>
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</tr>
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<td width="15%"><b><a href="WebServiceForm.html">WebServiceForm</a></b></td>
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<td> </td>
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</table>
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<hr/>
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<!-- ========== METHOD SUMMARY =========== -->
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<!-- ========== END METHOD SUMMARY =========== -->
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<pre class="sourceview"><span class="comment">/*
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Author: Mike Adair mike.adairATccrs.nrcan.gc.ca
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License: LGPL as per: http://www.gnu.org/copyleft/lesser.html
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$Id: WebServiceForm.js 3879 2008-02-27 14:20:29Z gjvoosten $
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*/</span>
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<span class="comment">
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// Ensure this object's dependancies are loaded.</span>
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mapbuilder.loadScript(baseDir+<span class="literal">"/widget/WidgetBaseXSL.js"</span>);
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<span class="comment">//mapbuilder.loadScript(baseDir+"/util/dojo/src/uuid/TimeBasedGenerator.js");</span>
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<span class="comment">/**
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* Widget to display a form for input of parameters to generate a web service
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* request. This JS object handles the form submit via HTTP Get by appending
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* a query string to the form's action URL. The query string is created from
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* all input elements and their values.
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* The target model is then loaded from the URL created.
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* A stylehseet must be specified as a property in config for this widget.
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* See widget/NtsForm.xsl for an example.
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*
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* <span class="attrib">@constructor</span>
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* <span class="attrib">@base</span> WidgetBaseXSL
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* <span class="attrib">@param</span> widgetNode This widget's object node from the configuration document.
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* <span class="attrib">@param</span> model The model that this widget is a view of.
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*/</span>
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<span class="reserved">function</span> WebServiceForm(widgetNode, model) {
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WidgetBaseXSL.apply(<span class="reserved">this</span>,new Array(widgetNode, model));
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<span class="reserved">this</span>.formElements = new Object();
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<span class="comment"> // We might have a request stylesheet to fill for a more complex post</span>
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var requestStylesheet = <span class="reserved">this</span>.getProperty(<span class="literal">"mb:requestStylesheet"</span>);
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<span class="reserved">if</span> (requestStylesheet) {
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<span class="reserved">this</span>.requestStylesheet = new XslProcessor(requestStylesheet, model.namespace);
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}
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<span class="reserved">this</span>.webServiceUrl = <span class="reserved">this</span>.getProperty(<span class="literal">"mb:webServiceUrl"</span>);
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<span class="comment">/**
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* Handles submission of the form (via javascript in an <a> tag)
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*/</span>
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<span class="reserved">this</span>.submitForm = <span class="reserved">function</span>() {
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<span class="reserved">this</span>.webServiceForm = document.getElementById(<span class="reserved">this</span>.formName);
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<span class="reserved">if</span>( <span class="reserved">this</span>.webServiceForm == null ) {
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<span class="comment"> // get it from a user div instead if present</span>
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<span class="reserved">this</span>.webServiceForm = document.getElementById(<span class="literal">"webServiceForm_form"</span>);
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}
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<span class="reserved">if</span>( <span class="reserved">this</span>.webServiceForm == null ) {
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<span class="reserved">return</span>;
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}
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var httpPayload = new Object();
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httpPayload.method = <span class="reserved">this</span>.targetModel.method;
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httpPayload.url = <span class="reserved">this</span>.webServiceUrl;
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<span class="reserved">if</span> (httpPayload.method.toLowerCase() == <span class="literal">"get"</span>) {
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httpPayload.url = <span class="reserved">this</span>.webServiceForm.action + <span class="literal">"?"</span>;
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<span class="reserved">for</span> (var i=0; i<<span class="reserved">this</span>.webServiceForm.elements.length; ++i) {
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var element = <span class="reserved">this</span>.webServiceForm.elements[i];
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webServiceUrl += element.name + <span class="literal">"="</span> + element.value + <span class="literal">"&"</span>;
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<span class="reserved">this</span>.formElements[element.name] = element.value;
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}
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mbDebugMessage(<span class="reserved">this</span>, httpPayload.url);
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<span class="reserved">this</span>.targetModel.newRequest(<span class="reserved">this</span>.targetModel,httpPayload);
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} <span class="reserved">else</span> {
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<span class="comment"> // a post</span>
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<span class="comment"> // put parameters we got in request stylesheet</span>
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<span class="reserved">for</span> (var i=0; i<<span class="reserved">this</span>.webServiceForm.elements.length; ++i) {
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var element = <span class="reserved">this</span>.webServiceForm.elements[i];
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<span class="reserved">this</span>.formElements[element.name] = element.value;
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}
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<span class="reserved">this</span>.requestStylesheet.setParameter(<span class="literal">"resourceName"</span>, <span class="reserved">this</span>.formElements[<span class="literal">"feature"</span>])
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<span class="reserved">this</span>.requestStylesheet.setParameter(<span class="literal">"fromDateField"</span>, <span class="reserved">this</span>.formElements[<span class="literal">"fromDateField"</span>])
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<span class="reserved">this</span>.requestStylesheet.setParameter(<span class="literal">"toDateField"</span>, <span class="reserved">this</span>.formElements[<span class="literal">"toDateField"</span>])
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<span class="comment">
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// <span class="attrib">@TODO</span></span>
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<span class="comment"> // we need a new uuid if we wnat to uniquely identify new layers </span>
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<span class="comment"> // var uuid = dojo_uuid_TimeBasedGenerator.generate();</span>
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var layer = <span class="reserved">this</span>.requestStylesheet.transformNodeToObject(<span class="reserved">this</span>.model.doc);
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<span class="comment"> //layer.childNodes[0].setAttribute("id", uuid)</span>
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<span class="reserved">if</span> (<span class="reserved">this</span>.debug) mbDebugMessage(<span class="reserved">this</span>, <span class="literal">"Transformed: "</span>+ (new XMLSerializer()).serializeToString(layer));
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<span class="comment">
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// extract the GetFeature out</span>
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<span class="reserved">this</span>.namespace = <span class="literal">"xmlns:wmc='http://www.opengis.net/context' xmlns:ows='http://www.opengis.net/ows' xmlns:ogc='http://www.opengis.net/ogc' xmlns:xsl='http://www.w3.org/1999/XSL/Transform' xmlns:xlink='http://www.w3.org/1999/xlink' xmlns:gml='http://www.opengis.net/gml' xmlns:wfs='http://www.opengis.net/wfs'"</span>;
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Sarissa.setXpathNamespaces(layer, <span class="reserved">this</span>.namespace);
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var getFeature = layer.selectSingleNode(<span class="literal">"//wfs:GetFeature"</span>)
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httpPayload.postData = (new XMLSerializer()).serializeToString( getFeature);
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mbDebugMessage(<span class="reserved">this</span>, <span class="literal">"httpPayload.postData:"</span>+ httpPayload.postData);
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<span class="reserved">this</span>.targetModel.wfsFeature = layer.childNodes[0];
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<span class="reserved">if</span> (<span class="reserved">this</span>.debug) mbDebugMessage(<span class="reserved">this</span>, <span class="literal">"wfsFeature = "</span>+ (new XMLSerializer()).serializeToString(<span class="reserved">this</span>.targetModel.wfsFeature));
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<span class="reserved">this</span>.targetModel.newRequest(<span class="reserved">this</span>.targetModel,httpPayload);
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}
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}
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<span class="comment">/**
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* handles keypress events to filter out everything except "enter".
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* Pressing the "enter" key will trigger a form submit
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* <span class="attrib">@param</span> event the event object passed in for Mozilla; IE uses window.event
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*/</span>
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<span class="reserved">this</span>.handleKeyPress = <span class="reserved">function</span>(event) {
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var keycode;
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var target;
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<span class="reserved">if</span> (event){
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<span class="comment"> //Mozilla</span>
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keycode=event.which;
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target=event.currentTarget;
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}<span class="reserved">else</span>{
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<span class="comment"> //IE</span>
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keycode=window.event.keyCode;
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target=window.event.srcElement.form;
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}
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<span class="reserved">if</span> (keycode == 13) { //enter key
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target.parentWidget.submitForm();
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<span class="reserved">return</span> false;
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}
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}
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<span class="comment">/**
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* Refreshes the form onblur handlers when this widget is painted.
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* <span class="attrib">@param</span> objRef Pointer to this object.
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*/</span>
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<span class="reserved">this</span>.postPaint = <span class="reserved">function</span>(objRef) {
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objRef.webServiceForm = document.getElementById(objRef.formName);
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<span class="reserved">if</span>( <span class="reserved">this</span>.webServiceForm == null ) {
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<span class="comment"> // get it from a user div instead if present</span>
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<span class="reserved">this</span>.webServiceForm = document.getElementById(<span class="literal">"webServiceForm_form"</span>);
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}
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objRef.webServiceForm.parentWidget = objRef;
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objRef.webServiceForm.onkeypress = objRef.handleKeyPress;
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<span class="comment"> //objRef.WebServiceForm.onsubmit = objRef.submitForm;</span>
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<span class="comment"> //objRef.WebServiceForm.mapsheet.onblur = objRef.setMapsheet;</span>
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}
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<span class="comment">
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//set some properties for the form output</span>
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<span class="reserved">this</span>.formName = <span class="literal">"WebServiceForm_"</span> + mbIds.getId();
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<span class="reserved">this</span>.stylesheet.setParameter(<span class="literal">"formName"</span>, <span class="reserved">this</span>.formName);
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<span class="comment">/**
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* Sets value for form elements
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* <span class="attrib">@param</span> objRef Pointer to this object.
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*/</span>
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<span class="reserved">this</span>.prePaint = <span class="reserved">function</span>(objRef) {
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<span class="reserved">for</span> (var elementName in objRef.formElements) {
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objRef.stylesheet.setParameter(elementName, objRef.formElements[elementName]);
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}
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}
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<span class="comment">/**
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* Setup the listener for AOI changes to be used in filter if necessary
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*/</span>
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<span class="reserved">this</span>.setAoiParameters = <span class="reserved">function</span>(objRef,bbox) {
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<span class="reserved">if</span> (objRef.model) {
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var featureSRS = null;
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var containerSRS = objRef.model.getSRS();
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objRef.requestStylesheet.setParameter(<span class="literal">"bBoxMinX"</span>, bbox[0][0] );
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objRef.requestStylesheet.setParameter(<span class="literal">"bBoxMinY"</span>, bbox[1][1] );
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objRef.requestStylesheet.setParameter(<span class="literal">"bBoxMaxX"</span>, bbox[1][0] );
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objRef.requestStylesheet.setParameter(<span class="literal">"bBoxMaxY"</span>, bbox[0][1] );
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objRef.requestStylesheet.setParameter(<span class="literal">"srs"</span>, containerSRS );
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objRef.requestStylesheet.setParameter(<span class="literal">"width"</span>, objRef.model.getWindowWidth() );
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objRef.requestStylesheet.setParameter(<span class="literal">"height"</span>, objRef.model.getWindowHeight() );
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}
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}
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<span class="reserved">this</span>.init = <span class="reserved">function</span>(objRef) {
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<span class="reserved">if</span> (objRef.model) {
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objRef.model.addListener(<span class="literal">"aoi"</span>, objRef.setAoiParameters, objRef);
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<span class="comment"> //TBD: another one for bbox</span>
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}
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}
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<span class="reserved">this</span>.model.addListener(<span class="literal">"init"</span>, <span class="reserved">this</span>.init, <span class="reserved">this</span>);
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}
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</pre>
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<hr>
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<!-- ========== START OF NAVBAR ========== -->
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<a name="navbar_top"><!-- --></a>
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<table border="0" width="100%" cellpadding="1" cellspacing="0">
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