1. #1
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    Jul 2011
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    Question Cannot add listener to Map. Please help!

    Cannot add listener to Map. Please help!


    After solving my problem with the markers I got another problem. This time, I can't add a listener (using either on or addListenermethods) after creating the panel with the map.
    Any help would be much appreciated. Here's the code:
    Code:
    Ext.setup({
    ...
    onReady: function() {
    
    
        var TopBar, Tabs, MapHome, Viewport, Homecard, Nearbycard, updateNearby;
    
    
        /* 
         *      HOME
         */
        var markersHome = [];
        MapHome = new Ext.Map({
            id: "maphome",
            title: 'Map',
            useCurrentLocation: true,
            listeners: {
                centerchange: function(comp, map){
                    deleteOverlays(markersHome); //defined on another file
                    addMarker(markersHome,map.center); //defined on another file
                    showOverlays(markersHome,map); //defined on another file
                }
           },
            mapOptions : {
                mapTypeControl : false,
                navigationControl : false,
                streetViewControl : false,
                backgroundColor: 'transparent',
                disableDoubleClickZoom: true,
                zoom: 17,
                draggable: false,
                keyboardShortcuts: false,
                scrollwheel: false,
                mapTypeId: google.maps.MapTypeId.HYBRID
           }
        });
    
    
    
    
        Homecard = new Ext.Panel({
            title: "home",
            id: "homecard",
            iconCls: "home",
            items: [MapHome]
        });
    
    
        /* 
         *      NEARBY
         */
        Nearby = new Ext.List({
            scroll: 'vertical',
            height: '100%',
            styleHtml: true,
            store: new Ext.data.Store({
                model: 'Places', //defined on another file
                sorters: 'title',
                data: []
            }),
            itemTpl:['<div class="nearby-item" id="{id}">',
                        '<img alt="{title}" src="{imageUrl}" />',
                        '<h2>{title}</h2>',
                        '<p>{excerpt}</p>',
                    '</div>']
        });
    
    
        Nearbycard = new Ext.Panel({
            fullscreen: true,
            iconCls: "list",
            title: "nearby",
            id: "nearbycard",
            items: [Nearby]
        });
    
    
        updateNearby = function() {
            console.log('updating!'); //debug purposes
            }
        MapHome.on('locationupdate',updateNearby); // <-- Here is the problem
    
    
    
    
    
    
        /*
         *      MAIN
         */
    
    
        TopBar = new Ext.Toolbar({
            dock: 'top',
            xtype: "toolbar",
            title: "<img class='titleLogo' src='css/images/logo.png' />",
            items: [
    
    
                { xtype: 'spacer' },
                {
                    iconCls: 'settings9',
                    iconMask: true,
                    text: 'options'
                }
            ]
        });
    
    
        Tabs = new Ext.TabPanel({
            id: 'tabs',
            //fullscreen:true,
            dock: 'bottom',
            flex: 1,
            tabBar: {
                dock: 'bottom',
                layout: {
                    pack: 'center'
                }
            },
            items: [ Homecard, Nearbycard ]
        });
    
    
        Viewport = new Ext.Panel({
            fullscreen:true,
            layout:{type:'vbox',align: 'stretch'},
            ui:'dark',
            items: [TopBar,Tabs],
        });
     }
    });

    I keep getting this error on the line with the MapHome.on code:

    Uncaught TypeError: Cannot read property 'element' of undefined

  2. #2
    Sencha User
    Join Date
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    Default RESOLVED

    RESOLVED


    Fixed it. I had an error defining the variables. Code above is now correct.

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