90 lines
2.3 KiB
Text
90 lines
2.3 KiB
Text
// NowPlayingBridge.mm
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#import "NowPlayingBridge.h"
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#import <Foundation/Foundation.h>
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#import <dispatch/dispatch.h>
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#import <objc/runtime.h>
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typedef void (*MRMediaRemoteGetNowPlayingInfoFunction)(
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dispatch_queue_t queue, void (^handler)(NSDictionary *information));
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@implementation NowPlayingBridge
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+ (NSDictionary *)currentPlayingMetadata {
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wold-style-cast"
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CFURLRef ref = (__bridge CFURLRef)
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[NSURL fileURLWithPath:
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@"/System/Library/PrivateFrameworks/MediaRemote.framework"];
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#pragma clang diagnostic pop
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CFBundleRef bundle = CFBundleCreate(kCFAllocatorDefault, ref);
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if (!bundle) {
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NSLog(@"Failed to load MediaRemote framework");
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return nil;
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}
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wold-style-cast"
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MRMediaRemoteGetNowPlayingInfoFunction MRMediaRemoteGetNowPlayingInfo =
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(MRMediaRemoteGetNowPlayingInfoFunction)CFBundleGetFunctionPointerForName(
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bundle, CFSTR("MRMediaRemoteGetNowPlayingInfo"));
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#pragma clang diagnostic pop
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if (!MRMediaRemoteGetNowPlayingInfo) {
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NSLog(@"Failed to get function pointer for MRMediaRemoteGetNowPlayingInfo");
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CFRelease(bundle);
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return nil;
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}
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__block NSDictionary *nowPlayingInfo = nil;
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dispatch_semaphore_t semaphore = dispatch_semaphore_create(0);
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MRMediaRemoteGetNowPlayingInfo(
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dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0),
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^(NSDictionary *information) {
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nowPlayingInfo = [information copy];
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dispatch_semaphore_signal(semaphore);
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});
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dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
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CFRelease(bundle);
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return nowPlayingInfo;
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}
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@end
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extern "C" {
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const char *getCurrentPlayingTitle() {
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NSDictionary *metadata = [NowPlayingBridge currentPlayingMetadata];
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if (metadata == nil) {
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return nullptr;
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}
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NSString *title =
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[metadata objectForKey:@"kMRMediaRemoteNowPlayingInfoTitle"];
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if (title) {
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return strdup([title UTF8String]);
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}
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return nullptr;
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}
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const char *getCurrentPlayingArtist() {
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NSDictionary *metadata = [NowPlayingBridge currentPlayingMetadata];
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if (metadata == nil) {
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return nullptr;
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}
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NSString *artist =
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[metadata objectForKey:@"kMRMediaRemoteNowPlayingInfoArtist"];
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if (artist) {
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return strdup([artist UTF8String]);
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}
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return nullptr;
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}
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}
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