script_share.js

// Handler for the share event
navigator.mozSetMessageHandler("activity", function(activity){
	if(activity.source.name == "share"){
		// obtain the URL from the activity
		var urlToShare = activity.source.data.url;
		if (window.localStorage.length > 1) {
		  var div = document.getElementById('previousHandles');
		  var existingHandlesLabel = document.createElement('p');
		  existingHandlesLabel.id = 'existing-handles-label';
		  existingHandlesLabel.setAttribute('data-l10n-id', 'select-id');
		  div.appendChild(existingHandlesLabel);
		
		  // Add handles to a list
		  var ul = document.createElement('ul');
		  for (var i = 0; i < window.localStorage.length; i++) {
			  var handle = window.localStorage.key(i);
			  var li = document.createElement('li');
			  var linkToPod = document.createElement('a');
		   
			  linkToPod.setAttribute('href', getShareUrl(handle, urlToShare));
			  linkToPod.setAttribute('title', 'Share to my pod!');
			  linkToPod.appendChild(document.createTextNode(handle));
		   
			  li.appendChild(linkToPod);
			  ul.appendChild(li);
		  }
		  div.appendChild(ul);
		} else if (window.localStorage.length == 1){
				//if only one account, share directly to it
				var handle = window.localStorage.key(0);				
				window.location = getShareUrl(handle, urlToShare);
		} else{
				// If no diaspora* account has been defined.
        //TODO: propose for configuration and continue
        alert(navigator.mozL10n.get('configuration-required'));
		}
	}
});

// url to share something
function getShareUrl(handle, content) {
	var splitted = handle.split('@');
	return 'https://' + splitted[1] + '/bookmarklet?title=&url=' +	content;
}