CSS Domain.
var CSS = {
setStylesheetText : function (msg) {
if (!msg || !msg.params || !msg.params.text || !msg.params.url) {
return;
}
var i,
node;
var head = document.getElementsByTagName('head')[0];
// create an style element to replace the one loaded with <link>
var s = document.createElement('style');
s.type = 'text/css';
s.appendChild(document.createTextNode(msg.params.text));
for (i = 0; i < document.styleSheets.length; i++) {
node = document.styleSheets[i];
if (node.ownerNode.id === msg.params.url) {
head.insertBefore(s, node.ownerNode); // insert the style element here
// now can remove the style element previously created (if any)
node.ownerNode.parentNode.removeChild(node.ownerNode);
} else if (node.href === msg.params.url && !node.disabled) {
// if the link element to change
head.insertBefore(s, node.ownerNode); // insert the style element here
node.disabled = true;
i++; // since we have just inserted a stylesheet
}
}
s.id = msg.params.url;
},Manage messaging between Editor and Browser at the protocol layer.
Handle messages that arrives through the current transport and dispatch them
to subscribers. Subscribers are handlers that implements remote commands/functions.
Property 'method' of messages body is used as the 'key' to identify message types.
Provide a 'send' operation that allows remote commands sending messages to the Editor.
var MessageBroker = {