Create BGMMusic.m

BGMApp/BGMApp/Music Players/BGMMusic.m

@@ -0,0 +1,108 @@
+// This file is part of Background Music.
+//
+// Background Music is free software: you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation, either version 2 of the
+// License, or (at your option) any later version.
+//
+// Background Music is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Background Music. If not, see <http://www.gnu.org/licenses/>.
+
+//
+//  BGMMusic.m
+//  BGMApp
+//
+//  Copyright © 2016-2019 Kyle Neideck, theLMGN
+//
+
+// Self Include
+#import "BGMMusic.h"
+
+// Auto-generated Scripting Bridge header
+#import "Music.h"
+
+// Local Includes
+#import "BGMScriptingBridge.h"
+
+// PublicUtility Includes
+#import "CADebugMacros.h"
+
+
+#pragma clang assume_nonnull begin
+
+@implementation BGMMusic {
+    BGMScriptingBridge* scriptingBridge;
+}
+
++ (NSUUID*) sharedMusicPlayerID {
+    NSUUID* __nullable musicPlayerID = [[NSUUID alloc] initWithUUIDString:@"7B62B5BF-CF90-4938-84E3-F16DEDC3F608"];
+    NSAssert(musicPlayerID, @"BGMMusic::sharedMusicPlayerID: !musicPlayerID");
+    return (NSUUID*)musicPlayerID;
+}
+
+- (instancetype) init {
+    if ((self = [super initWithMusicPlayerID:[BGMMusic sharedMusicPlayerID]
+                                        name:@"Music"
+                                    bundleID:@"com.apple.Music"])) {
+        scriptingBridge = [[BGMScriptingBridge alloc] initWithMusicPlayer:self];
+    }
+    
+    return self;
+}
+
+- (MusicApplication* __nullable) Music {
+    return (MusicApplication*)scriptingBridge.application;
+}
+
+- (void) wasSelected {
+    [super wasSelected];
+    [scriptingBridge ensurePermission];
+}
+
+- (BOOL) isRunning {
+    return self.Music.running;
+}
+
+// isPlaying and isPaused check self.running first just in case Music is closed but self.Music hasn't become
+// nil yet. In that case, reading self.Music.playerState could make Scripting Bridge open Music.
+
+- (BOOL) isPlaying {
+    return self.running && (self.Music.playerState == MusicEPlSPlaying);
+}
+
+- (BOOL) isPaused {
+    return self.running && (self.Music.playerState == MusicEPlSPaused);
+}
+
+- (BOOL) pause {
+    // isPlaying checks isRunning, so we don't need to check it here and waste an Apple event
+    BOOL wasPlaying = self.playing;
+    
+    if (wasPlaying) {
+        DebugMsg("BGMMusic::pause: Pausing Music");
+        [self.Music pause];
+    }
+    
+    return wasPlaying;
+}
+
+- (BOOL) unpause {
+    // isPaused checks isRunning, so we don't need to check it here and waste an Apple event
+    BOOL wasPaused = self.paused;
+    
+    if (wasPaused) {
+        DebugMsg("BGMMusic::unpause: Unpausing Music");
+        [self.Music playpause];
+    }
+    
+    return wasPaused;
+}
+
+@end
+
+#pragma clang assume_nonnull end