multiple_buttons.js

// more or less a note to myself ...
//
// This is an example for displaying a (say) PDF print button (id = submit4) only, if a particular 
// button out of a set of multiple button is pressed
//
// requires jQuery 

// originally there was some more stuff in the Attendees object 
Attendees = {};

// handling the pdf button
Attendees.pdf = {
	// the PDF button (respectively the div in which it lives) is not displayed, only in case 
	// a navigation button with id = a2 is clicked
	pdf_button_is_not_visible: function() {
		// if we want to display the the PDF button (decided by a PHP script), first we set it 
                // to display none
		if($('submit4')) {
			$('submit4').style.display = 'none';
		};		
		
		// if the navigation button id = a2 is clicked, we display the PDF button. This means 
                // we display the div area and the logic in the PHP script decides if the PDF button shall 
                // be displayed at all. active_tab is a hidden field where the status of the actual 
                // navigation button is stored
		if($('active_tab').value == 'a2') {
			this.display_pdf_button();
		};
	},
	// shows the PDF button div
	display_pdf_button: function() {
		if($('submit4')) {
			$('submit4').style.display = 'inline';
		};
	},
	// For all the multiple navigation buttons, we register an EventHandler for the "click" event.  
        // The callback is the pdf_button_is_not_visible form above. It manages if the button shall be       
        // displayed
	add_event_handler: function() {
		var that = this;
		for(var i = 1; i < 8; ++i) {
			if(jQuery('#a' + i)) {
				jQuery('#a' + i).bind('click', function() {
					that.pdf_button_is_not_visible();
				});
			}	
		}
	},
	// calls the action to print the pdf in the controller  
	printpdf: function(id, uid, aid) {
		location.href = '/event/attendees/printpdfhotel/id/' + id + '/uid/' + uid + '/aid/' + aid;
	}
};