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/*
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License: LGPL as per: http://www.gnu.org/copyleft/lesser.html
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$Id: Button.js 3052 2007-08-01 21:25:21Z ahocevar $
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*/
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// Ensure this object's dependancies are loaded.
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mapbuilder.loadScript(baseDir+"/widget/ButtonBase.js");
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/**
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* Generic Button object. Set the <action> property in config for
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* the controller method to be called when selected
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* @base ButtonBase
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* @author Andreas Hocevar andreas.hocevarATgmail.com
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* @param widgetNode The tool node from the Config XML file.
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* @param model The ButtonBar widget.
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*/
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function Button(widgetNode, model) {
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ButtonBase.apply(this, new Array(widgetNode, model));
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/**
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* default css cursor to use when the button is selected
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*/
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this.cursor = 'default';
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/**
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* Creates the OpenLayers control for this button.
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* This method will be called by ButtonBase when
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* MapPaneOL is ready to have buttons added.
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* The control should be defined in this method.
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* @type function
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* @param objRef reference to this object.
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* @return class (not instance!) of the OL control.
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*/
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this.createControl = function(objRef) {
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var Control = OpenLayers.Class( OpenLayers.Control, {
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CLASS_NAME: 'mbControl.'+objRef.id,
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type: (objRef.buttonType == 'RadioButton') ? OpenLayers.Control.TYPE_TOOL : OpenLayers.Control.TYPE_BUTTON,
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// for button type
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trigger: function() {
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eval('config.objects.'+objRef.action);
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},
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// for tool type (RadioButton)
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activate: function() {
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eval('config.objects.'+objRef.action);
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this.active = true;
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return true;
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}
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});
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return Control;
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}
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/**
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* Optional method to instantiate the control. If a
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* subclass provides this method, it will be used instead
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* of just callint new Control() in the superclass.
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* This is needed when a control has to be instantiated
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* with parameters.
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* @type OpenLayers.Control
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* @param objRef reference to this object.
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* @param {OpenLayers.Control} Control to instantiate
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* @return instance of the OL control
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*/
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this.instantiateControl = function(objRef, Control) {
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// return OpenLayers.Control instance
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return new Control();
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}
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}
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