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Call the main app's scheme twice.

Once to launch the app and again with `launchedAtLogin`.
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1 parent 584f4cf commit 126d5ecd352c7af19fb4690627c39a9019f3f043 @kgn committed Apr 23, 2012
Showing with 8 additions and 0 deletions.
  1. +6 −0 LaunchAtLoginHelper/LLHAppDelegate.m
  2. +2 −0 readme.md
@@ -12,8 +12,14 @@
@implementation LLHAppDelegate
- (void)applicationDidFinishLaunching:(NSNotification *)notification{
+ // Call the scheme to launch the app
NSString *scheme = [NSString stringWithFormat:@"%@://", LLURLScheme];
[[NSWorkspace sharedWorkspace] openURL:[NSURL URLWithString:scheme]];
+
+ // Call the app again this time with `launchedAtLogin` so it knows how it was launched
+ NSString *schemeLaunchedAtLogin =
+ [NSString stringWithFormat:@"%@://launchedAtLogin", LLURLScheme];
+ [[NSWorkspace sharedWorkspace] openURL:[NSURL URLWithString:schemeLaunchedAtLogin]];
[NSApp terminate:self];
}
View
@@ -2,6 +2,8 @@ When creating a sandboxed app `LSSharedFileListInsertItemURL` can no longer be u
A lot of research was put into this helper app. For example [Apple's docs](http://developer.apple.com/library/mac/#documentation/Security/Conceptual/AppSandboxDesignGuide/DesigningYourSandbox/DesigningYourSandbox.html#//apple_ref/doc/uid/TP40011183-CH4-SW3) state that `LSRegisterURL` should be used to register the helper app, however this never seemed to work and after further digging it turns out this is a [typo in the docs](https://devforums.apple.com/message/647212#647212). Many examples I found online used `NSWorkspace launchApplication:` to launch the main app, however this was blocked by sandboxing so a url scheme is used instead.
+**LaunchAtLoginHelper** calls the main app's scheme twice, once to launchg the app and then again with `launchedAtLogin` so the main app can know if it has been launched at login. For example [Play by Play](http://playbyplayapp.com) uses this to hide the app if it was launched at login.
+
This project contains a [sample app](https://github.com/kgn/LaunchAtLoginHelper/tree/master/LaunchAtLoginSample) to demonstrate how the main app should be configured and how to setup a checkbox to enable and disable launching at login.
# How to use

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