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Opener

Opener is a developer library for overriding link destinations. Handler packages instruct Opener whether to change the URL that’s about to be opened. For examples, refer to the source of LinkOpener and MapsOpener.

All iOS versions since 5.0 are supported, on all devices.

Documentation is available at hbang.github.io/libopener.

Creating an Opener handler

Make sure Opener is already installed on your device.

Theos includes headers and a linkable framework for Opener, so you don’t need to worry about copying files over from your device.

To develop a handler, create a bundle project. You can do this with a Theos makefile similar to this one:

INSTALL_TARGET_PROCESSES = SpringBoard

include $(THEOS)/makefiles/common.mk

BUNDLE_NAME = MyAwesomeHandler
MyAwesomeHandler_FILES = XXXMyAwesomeHandler.m
MyAwesomeHandler_INSTALL_PATH = /Library/Opener
MyAwesomeHandler_EXTRA_FRAMEWORKS = Opener

include $(THEOS_MAKE_PATH)/bundle.mk

A handler class subclasses from HBLOHandler. Here is a simple example:

#import <Opener/Opener.h>

@interface XXXMyAwesomeHandler : HBLOHandler

@end
#import "XXXMyAwesomeHandler.h"

@implementation XXXMyAwesomeHandler

- (instancetype)init {
	self = [super init];

	if (self) {
		self.name = @"My Awesome Handler";
		self.identifier = @"com.example.myawesomehandler";
	}

	return self;
}

- (id)openURL:(NSURL *)url sender:(NSString *)sender {
	if (([url.scheme isEqualToString:@"http"] || [url.scheme isEqualToString:@"https"])
		&& [url.host isEqualToString:@"hbang.ws"]) {
		return [NSURL URLWithString:[NSString stringWithFormat:@"hbang://open%@", url.path]];
	}

	return nil;
}

@end

In this example, URLs being opened that are web pages (http:// or https:// scheme) and have a hostname of hbang.ws will be overridden to open a hypothetical app that supports the hbang:// URI scheme. This means https://hbang.ws/apps/ turns into hbang://open/apps/.

You must also add ws.hbang.libopener to the Depends: list in your control file. If Opener isn’t present on the device, your binaries will fail to load. For example:

Depends: mobilesubstrate, something-else, some-other-package, ws.hbang.libopener (>= 3.1.2)

You should specify the current version of Opener as the minimum requirement, so you can guarantee all features you use are available.

License

Licensed under the Apache License, version 2.0. Refer to LICENSE.md.