content.js

//content script, this one interfaces with the page, as opposed to Pouch
//
//content scripts are run in an isolated environment, 
//so we can fool around however we want with globals and such

var runtimeOrExtension = chrome.runtime && chrome.runtime.sendMessage ? 'runtime' : 'extension';

var contentport = chrome[runtimeOrExtension].connect({name: "page"});

chrome[runtimeOrExtension].onConnect.addListener(function(port){
  port.onMessage.addListener(function(message){
    switch (message.command){
      case 'getcheckbox':
        var name = message.name || '_';
        var checkboxes = $(':checkbox');
        var arr = $.makeArray(checkboxes);
        var vals = $.map(arr, function(elem, index){
          return elem.checked;
        });
        contentport.postMessage({name: name, vals: vals, type: "content"});
        break;
      case 'setcheckbox':
        var name = message.name || '_';
        var checkboxes = $(':checkbox');
        var data = message.data;
        var arr = $.makeArray(checkboxes);
        var vals = message.data.vals;
        for (var i = 0; i < arr.length; i++){
          arr[i].checked = data.vals[i];
        }
        contentport.postMessage({name: name, vals: vals});
        break;
      default:
        break;
    }
  });
});