Skip to content

Introduce .ext.regMessageListener(source_window, message_handler) to … #10

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Introduce .ext.regMessageListener(source_window, message_handler) to … #10

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
63 changes: 49 additions & 14 deletions src/js/ext/ext.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -111,6 +111,7 @@ var NULL = null,
inline_handler_timer_id = 0,
err_msgs = [],
unload_handlers = [],
message_handlers = [],

render_params, render_conf, ie_old_attach, w3c_old_attach, ie_old_detach, w3c_old_detach;

Expand Down Expand Up @@ -491,19 +492,30 @@ var NULL = null,

dom.evtCncl(evt);

if (str && src && src == top) {
msg_params = ParamHash(str,NULL,NULL,TRUE,TRUE);
msg_guid = msg_params.guid;
msg_obj = msg_params.msg;
if (guid == msg_guid && msg_obj && typeof msg_obj == OBJ) {
try {
/** @ignore */
setTimeout(function()
{
_receive_msg(msg_obj, evt);
msg_params = evt = msg_guid = msg_obj = NULL;
},1);
} catch (e) { }
if (str && src) {
if (src == top) {
msg_params = ParamHash(str,NULL,NULL,TRUE,TRUE);
msg_guid = msg_params.guid;
msg_obj = msg_params.msg;
if (guid == msg_guid && msg_obj && typeof msg_obj == OBJ) {
try {
/** @ignore */
setTimeout(function()
{
_receive_msg(msg_obj, evt);
msg_params = evt = msg_guid = msg_obj = NULL;
},1);
} catch (e) { }
}
} else if ((src != top) && (src != parent) && (src != window)) {
/* foreign message - if ext code registered a listener for the message's source window, pass it along safely: */
for (var i = 0; i < message_handlers.length; i++) {
if (message_handlers[i][0] == src) {
try {
message_handlers[i][1](evt);
} catch (e) { }
}
}
}
}
}
Expand Down Expand Up @@ -1553,6 +1565,28 @@ var NULL = null,
return win_has_focus || document.hasFocus();
}

/**
* Allow external code loaded into the SafeFrame to safely register a postMessage HTML5 listener.
* This enables external code to listen for messages in the SafeFrame from any parent child IFRAME
* it may install. We don't let external code directly attach message listeners as we don't want
* to risk parent pages leveraging postMessage from accidently leaking messages to SafeFrame'd
* external code.
*
* @name $sf.ext.regMessageListener
* @public
* @static
* @function
* @param {Object} source_window The content window object that will send our SafeFrame messages that ext code wants to listen to (other than our publisher/parent). This cannot be window (the SafeFrame itself) nor parent or top - if it is it will be ignored.
* @param {Function} message_handler The callback function that will be called with the message received by the SafeFrame when the message is an "ext" message.
*
*/
function regMessageListener(source_window, message_handler)
{
if ((source_window == window) || (source_window == parent) || (source_window == top))
return;
message_handlers.push([source_window, message_handler]);
}

/**
* Return whether or not a particular feature is supported, or an object containing
* key/value pairs denoting all features and whether or not they are supported
Expand Down Expand Up @@ -1614,7 +1648,8 @@ var NULL = null,
cookie: cookie,
message: message,
inViewPercentage: inViewPercentage,
winHasFocus: winHasFocus
winHasFocus: winHasFocus,
regMessageListener: regMessageListener
}, sf, TRUE);

// QUESTION - IS this just leftover?
Expand Down