Kiosk TabRotater JetPack

TabRotaterJetPack.js

/*
@author: Andy Edmonds
@url: http://www.uxagile.com
@update: http://uxagile.com/kiosk-tab-rotator-jetpack-for-firefox/
@title: Jetpack Kiosk Tab Rotator
@description: For you information radiator screens
@license: MPL
*/

// TODO
// Auto cancel when user interacts with page
// Provide ability to set delay
// Update state upon pause/resume in jetpack bar
// Latest developments at http://gist.github.com/169784

var tabDelaySeconds = 40;

var interval= false;
var curTab= 0;
var widgetHandle  = false;


jetpack.statusBar.append({
  html: "<span id='cycleStats' style='font-variant:smallcaps;font-size:8px;'><img src='data:image/gif;base64,R0lGODlhEAAQALMAAKWfkNfVycXDtejm4LaypM3Ive/v5+De062pmrm4q/X17+Xi1srIuN/czs/NvqaikyH5BAAHAP8ALAAAAAAQABAAAASE0AlCkr2XCJdEM8YgjmIgJE+hKCA4cMZaAIDKgpIzgMpct6CTbmfwFYBFC2EBMoICh0FDMOg0Hw+GKOFYHBiLBkLEwAoWCwT0wA4gDguBGU1gsNkTuPxxjqvZDghdcXNeCQgUBAVshHxobRsNd419DZaXl3E0XA6dnp8OBAAMpKWmpwwRADs=' width='16' height='16' vspace='2'></span>",
  width: 45,

  onReady: function(widget){
    widgetHandle = widget; 
    $(widget).click(function(){
      cycleInit();
    });
  },
  
});

function cycleInit() {
  if(!interval) {
    jetpack.notifications.show( "Rotating tab to:" + this.curTab ); 
    interval = setInterval( cycle, 1000*tabDelaySeconds );
    //$("#cycleStatus", widgetHandle).html("CYCLING")
    var doc = jetpack.tabs.focused.contentDocument; 
    //doc.addEventListener("mousemove", cancelCycle)
  } else {
    jetpack.notifications.show( "Ending Tab Rotation"); 
	interval = clearInterval(interval);
    //console.log($(widgetHandle));
  }
}


function cycle(){
    var doc = jetpack.tabs.focused.contentDocument; 
    //doc.removeEventListener("mousemove", cancelCycle) 
    if(this.curTab<jetpack.tabs.length  ) {
		this.curTab++;
	} else {
		this.curTab = 0;
	}
    jetpack.notifications.show( "Rotating tab to:" + this.curTab ); 
    jetpack.tabs[curTab].focus();  
  };
  function cancelCycle () {
    interval = clearInterval(interval);
    var doc = jetpack.tabs.focused.contentDocument; 
    //doc.removeEventListener("mousemove", cancelCycle) 
  }