The next step in building the mapping application is creating the Visualforce page that displays the map and the corresponding list of accounts. The Visualforce page defines a panel for the Google Maps object, creates a group sub-panel to display the list of accounts, and uses JavaScript to retrieve the account addresses and populate the map with color-coded markers based on the customer's priority. The JavaScript sets up the map object by performing the following logic:
It's good practice to place any JavaScript code within a static resource, in case it needs to be referenced in multiple locations. Create a static resource named MobileListView:
function addLoadEvent(func) { var oldonload = window.onload; if (typeof window.onload != 'function') { window.onload = func; } else { window.onload = function() { oldonload(); func(); } } } addLoadEvent( function() { if (GBrowserIsCompatible()) { var my_geocoder = new GClientGeocoder(); var map = new GMap2(document.getElementById("map")); var TC = new GMapTypeControl(); var bottomRight = new GControlPosition(G_ANCHOR_BOTTOM_RIGHT, new GSize(10,10)); var mCount =0; map.addControl(new GSmallMapControl()); // Small arrows map.addControl(TC, bottomRight); // Map type buttons function LTrim( value ) { var re = /\s*((\S+\s*)*)/; return value.replace(re, "$1"); } function RTrim( value ) { var re = /((\s*\S+)*)\s*/; return value.replace(re, "$1"); } // Remove leading and ending whitespaces function trim( value ) { return LTrim(RTrim(value)); } function doAddLocationToMap(SiteName, Street, City, State, Zip, typ) { var addr = Street + ", " + City + ", " + State + " " + Zip; my_geocoder.getLatLng (addr, function(point) { if (point) { var mTag = ''; var myIcon = new GIcon(G_DEFAULT_ICON); if(typ == 'self') { mTag = "<b>" + SiteName + "</b>" + "<br>" + City ; myIcon.image = "http://maps.google.com/mapfiles/arrow.png"; myIcon.iconSize=new GSize(32,32); } else { if(typ == 'acct') { mCount ++; var priAr = SiteName.split(":"); var compName = priAr[0]; // company name var pri = trim(priAr[1]); // priority var acctId = priAr[2]; //account id var index = ""; var imgName = "marker"; // default marker image var color = ""; mTag = "<b>" + compName + "</b>" + "<br>" + "Priority: " + pri + "<br>" + City ; // Set up marker colors based on priority if (pri == 'Medium') color="Yellow"; else if (pri == 'High') color="Red"; else if (pri == 'Low') color="Green"; if(mCount>10){ // use default marker myIcon.image = "http://maps.google.com/mapfiles/marker.png"; } else { // use custom marker 1-10 index = String(mCount); imgName = imgName + color + index + ".png"; myIcon.image = "{!URLFOR($Resource.markers, 'markers/" + imgName + "')}"; } document.getElementById(acctId).src = myIcon.image; myIcon.iconSize=new GSize(20,34); } } myIcon.shadowSize=new GSize(56,32); myIcon.iconAnchor=new GPoint(16,32); myIcon.infoWindowAnchor=new GPoint(16,0); markerOptions2 = { icon:myIcon }; var marker = new GMarker(point, markerOptions2); map.setCenter(point, 8); map.addOverlay(marker); // Set up listener action to show info on click event GEvent.addListener(marker, "click", function() { marker.openInfoWindowHtml(mTag); }) ; } } ); } //Get accts and draw address var arAllStr = ''; arAllStr = '{!AddrArStr}'; // Get all address recs var arLi = arAllStr.split("~::~"); // Split on line break delim for (var i = 0; i < arLi.length-1; i++) { var arLiStr =arLi[i]; var arCols =arLiStr.split("~:~"); //Split to get columns if(arCols[1].length >0) doAddLocationToMap(arCols[0],arCols[1],arCols[2], arCols[3],arCols[4],'acct'); } //Get user address and draw doAddLocationToMap('{!$User.FirstName} {!$User.LastName}' +' (Me)','{!$User.Street}','{!$User.City}',' {!$User.State}','{!$User.PostalCode}','self'); } } );
The following code defines the landing page of our mapping application:
<apex:page controller="mapController" showHeader="false"> <apex:composition template="iuivf" /> <script src="{!myKey}" type="text/javascript"> </script> <apex:includeScript value="{!$Resource.MobileListView}"/> <ul title="Accounts" selected="true" id="home" > <!-- Draw user name at top of panel --> <li class="group"> User: {!$User.FirstName} {!$User.LastName} </li> <!-- Create panel for Google Maps object --> <div class="panel" style="padding: 10px;" > <div id="map" style="width: 300px; height: 300px;"> </div> </div> <!-- Create group sub-panel to display list --> <li class="group">Accounts</li> <!-- Draw accounts, one per row --> <apex:repeat value="{!MyAccts}" var="p" > <li> <a href="accountDetail?id={!p.Id}" > <img id="{!p.Id}" src="http://maps.google.com/mapfiles/marker.png"/> {!p.Name} </a> </li> </apex:repeat> </ul> </apex:page>
The markup in our page uses the <apex:composition> component to reference a template. The template leverages the iUI framework, which lets us apply iPhone-like styling to our page. The iUI framework is included from the $Resource.IUI static resource. By defining a template, we can easily apply the same styling to all of the Visualforce pages we create for the iPhone platform.
The following markup defines the iuivf page used as the template:
<!-- * Page definition: iuivf * Visualforce template for iUI includes needed for * using the iui framework <http://code.google.com/p/iui/> * in any Visualforce page. --> <apex:page> <meta name="viewport" content="width=320; initial-scale=1.0; maximum-scale=1.0; user scalable=0;"/> <apex:includeScript value="{!URLFOR($Resource.IUI, 'iui-0.13/iui/iui.js')}" /> <apex:styleSheet value="{!URLFOR($Resource.IUI, 'iui-0.13/iui/iui.css')}" /> <style> #home { position: relative; top: 0px; } </style> </apex:page>
Note the following about the template: