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/*
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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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$Id$
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*/
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// Ensure this object's dependancies are loaded.
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mapbuilder.loadScript(baseDir+"/widget/WidgetBaseXSL.js");
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/**
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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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* @constructor
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* @base WidgetBase
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* @param widgetNode This widget's object node from the configuration document.
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* @param model The model that this widget is a view of.
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*/
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function OWSCatSearchForm(widgetNode, model) {
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WidgetBaseXSL.apply(this, new Array(widgetNode, model));
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this.filter = Sarissa.getDomDocument();
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this.filter.async = false;
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this.filter.load("OWSCatResourceFilter.xml");
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this.filter.setProperty("SelectionLanguage", "XPath");
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/**
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* Refreshes the form onblur handlers when this widget is painted.
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* @param objRef Pointer to this CurorTrack object.
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*/
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this.postPaint = function(objRef) {
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objRef.searchForm = document.getElementById(objRef.formName);
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objRef.searchForm.parentWidget = objRef;
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objRef.searchForm.westCoord.onblur = objRef.setAoi;
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objRef.searchForm.northCoord.onblur = objRef.setAoi;
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objRef.searchForm.eastCoord.onblur = objRef.setAoi;
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objRef.searchForm.southCoord.onblur = objRef.setAoi;
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objRef.searchForm.westCoord.model = objRef.model;
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objRef.searchForm.northCoord.model = objRef.model;
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objRef.searchForm.eastCoord.model = objRef.model;
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objRef.searchForm.southCoord.model = objRef.model;
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objRef.searchForm.onkeypress = objRef.handleKeyPress;
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objRef.searchForm.onsubmit = objRef.submitForm;
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//objRef.searchForm.mapsheet.onblur = objRef.setMapsheet;
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}
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/**
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* Output the AOI coordinates to the associated form input elements. This
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* method is registered as an AOI listener on the context doc.
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* @param objRef Pointer to this searchForm object.
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*/
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this.displayAoiCoords = function(objRef) {
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//objRef.searchForm = document.getElementById(objRef.formName);
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var aoi = objRef.model.getParam("aoi");
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objRef.searchForm.westCoord.value = aoi[0][0];
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objRef.searchForm.northCoord.value = aoi[0][1];
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objRef.searchForm.eastCoord.value = aoi[1][0];
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objRef.searchForm.southCoord.value = aoi[1][1];
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}
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this.model.addListener('aoi', this.displayAoiCoords, this);
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/**
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* Handles user input from the form element. This is an onblur handler for
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* the input elements.
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*/
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this.setAoi = function() {
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var aoi = this.model.getParam("aoi");
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if (aoi) {
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var ul = aoi[0];
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var lr = aoi[1];
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switch(this.name) {
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case 'westCoord':
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ul[0] = this.value;
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break;
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case 'northCoord':
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ul[1] = this.value;
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break;
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case 'eastCoord':
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lr[0] = this.value;
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break;
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case 'southCoord':
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lr[1] = this.value;
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break;
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}
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this.model.setParam("aoi",new Array(ul,lr) );
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}
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}
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/**
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* Change the AOI coordinates from select box choice of prefined locations
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* @param bbox the bbox value of the location keyword chosen
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*/
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this.setLocation = function(bbox) {
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var bboxArray = new Array();
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bboxArray = bbox.split(",");
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var ul = new Array(parseFloat(bboxArray[0]),parseFloat(bboxArray[2]));
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var lr = new Array(parseFloat(bboxArray[1]),parseFloat(bboxArray[3]));
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this.model.setParam("aoi",new Array(ul,lr));
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//convert this.model XY to latlong
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//convert latlong to targetmodel XY
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//extent.setAoi takes XY as input
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//this.targetModel.setParam("aoi", new Array(ul,lr));
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//this.targetModel.setParam("mouseup",this);
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}
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/**
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* Handles submission of the form (via javascript in an <a> tag)
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*/
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this.submitForm = function() {
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var thisWidget = this.parentWidget;
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thisWidget.createFilter(thisWidget);
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thisWidget.targetModel.setParam("wfs_GetFeature","service_resources");
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return false;
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}
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/**
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* creates the filter expression
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*/
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this.createFilter = function(objRef) {
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objRef.searchForm = document.getElementById(objRef.formName);
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var filter = config.objects["filterExpression"]; //TBD get this ID from config
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var aoi = this.model.getParam("aoi");
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var bboxStr = "";
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if (aoi) {
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bboxStr = aoi[0][0]+","+aoi[1][1]+" "+aoi[1][0]+","+aoi[0][1];
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} else {
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var bbox = this.model.getBoundingBox();
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bboxStr = bbox[0]+","+bbox[1]+" "+bbox[2]+","+bbox[3];
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}
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filter.setXpathValue(filter,"/Filter/And/BBOX/Box/coordinates",bboxStr);
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var keywords = "*"+objRef.searchForm.keywords.value+"*";
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filter.setXpathValue(filter,"/Filter/And/Or/Or/PropertyIsLike[PropertyName='title']/Literal",keywords);
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filter.setXpathValue(filter,"/Filter/And/Or/Or/PropertyIsLike[PropertyName='abstract']/Literal",keywords);
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filter.setXpathValue(filter,"/Filter/And/Or/PropertyIsLike[PropertyName='keywords']/Literal",keywords);
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}
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/**
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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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* @param event the event object passed in for Mozilla; IE uses window.event
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*/
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this.handleKeyPress = function(event) {
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var keycode;
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var target;
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if (event){
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//Mozilla
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keycode=event.which;
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target=event.currentTarget;
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}else{
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//IE
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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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if (keycode == 13) { //enter key
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return true;
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}
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}
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var RUC_Window=null;
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this.openRucWindow = function( rucType ) {
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if ( RUC_Window == null || RUC_Window.closed ) {
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var baseUrl;
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var params;
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switch(rucType) {
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case "placename":
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baseURL = "/rucs/placeName.html?language=" + config.lang + "&formName=" + this.formName;
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params = "width=290,height=480,scrollbars=0,toolbar=0,location=0,directories=0,status=0,menubar=0,resizable=0";
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break;
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case "postalCode":
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baseURL = "/rucs/postalCode.html?language=" + config.lang + "&formName=" + this.formName;
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params = "width=280,height=180,scrollbars=0,toolbar=0,location=0,directories=0,status=0,menubar=0,resizable=0";
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break;
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default:
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alert("unkown RUC type");
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break;
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}
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RUC_Window = open( baseURL, "RUCWindow", params );
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}
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RUC_Window.focus();
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return false;
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}
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function RUC_closeRUCWindow() {
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if ( RUC_Window != null && !RUC_Window.closed ) {
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RUC_Window.close();
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}
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}
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//set some properties for the form output
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this.formName = "WebServiceForm_" + mbIds.getId();
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this.stylesheet.setParameter("formName", this.formName);
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}
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/**
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*/
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SetAoiCoords = function(aoiBox) {
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config.objects.mainMap.setParam("aoi",aoiBox );
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}
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