problem
*DISCLAIMER:* This description is gonna sound confusing until you read the (simple) error and working cases.
When a subcontext is created using the
url property of a call to
Ti.UI.createWindow(), you cannot assign
this from within the subcontext to
Ti.UI.currentWindow or it will result in a Kroll error. You can however assign a function that returns
this in the subcontext, and then that function can be invoked in the original context to get the subcontext's
this.
I have not tested this on any other platforms.
error case
app.js
var win = Ti.UI.createWindow({ url: 'context.js' }).open();
context.js
Ti.UI.currentWindow.__context = this;
result
[DEBUG] 2014-08-04 15:34:40.449 conty[50898:4e0b] -[KrollContext target]: unrecognized selector sent to instance 0xd336f10
[ERROR] Script Error {
[ERROR] backtrace = "#0 () at :0";
[ERROR] line = 6;
[ERROR] message = "-[KrollContext target]: unrecognized selector sent to instance 0xd336f10";
[ERROR] sourceId = 349233056;
[ERROR] sourceURL = "file:///Users/tlukasavage/Library/Application%20Support/iPhone%20Simulator/7.1/Applications/5EB2D06A-CE21-4B5C-A0B1-CF9BB995DF8C/conty.app/context.js";
[ERROR] }
working case
The working case here is a little longer so as to show not only does it not cause an error in context.js, but also that the context returned from it is able to be used and iterated over when returned to app.js.
app.js
var win = Ti.UI.createWindow({ url: 'context.js' });
win.addEventListener('open', function() {
Ti.API.info(Object.keys(win.__context()));
});
win.open();
context.js
var self = this;
Ti.UI.currentWindow.__context = function() {
return self;
};
result
[INFO] (
[INFO] self,
[INFO] Kroll,
[INFO] setTimeout,
[INFO] setInterval,
[INFO] clearTimeout,
[INFO] clearInterval,
[INFO] require,
[INFO] L,
[INFO] alert,
[INFO] Titanium,
[INFO] Ti,
[INFO] console
[INFO] )
Additional Notes
This is likely related to TIMOB-17449.
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