mac: add support for drag-and-drop option

DOCS/man/options.rst

@@ -3172,7 +3172,6 @@ Window
     (Windows only) Snap the player window to screen edges.
 
 ``--drag-and-drop=<no|auto|replace|append>``
-    (X11, Wayland and Windows only)
     Controls the default behavior of drag and drop on platforms that support this.
     ``auto`` will obey what the underlying os/platform gives mpv. Typically, holding
     shift during the drag and drop will append the item to the playlist. Otherwise,

osdep/macOS_swift_bridge.h

@@ -27,6 +27,7 @@
 #include "options/m_config.h"
 #include "player/core.h"
 #include "input/input.h"
+#include "input/event.h"
 #include "video/out/win_state.h"
 
 #include "osdep/macosx_application_objc.h"

osdep/macos/mpv_helper.swift

@@ -75,6 +75,20 @@ class MPVHelper {
         return m_config_cache_get_next_changed(optsCachePtr, &property)
     }
 
+    func open(files: [String]) {
+        if opts.drag_and_drop == -2 { return }
+
+        var action = NSEvent.modifierFlags.contains(.shift) ? DND_APPEND : DND_REPLACE
+        if opts.drag_and_drop >= 0  {
+            action = mp_dnd_action(UInt32(opts.drag_and_drop))
+        }
+
+        let filesClean = files.map{ $0.hasPrefix("file:///.file/id=") ? (URL(string: $0)?.path ?? $0) : $0 }
+        var filesPtr = filesClean.map { UnsafeMutablePointer<CChar>(strdup($0)) }
+        mp_event_drop_files(input, Int32(files.count), &filesPtr, action)
+        for charPtr in filesPtr { free(UnsafeMutablePointer(mutating: charPtr)) }
+    }
+
     func setOption(fullscreen: Bool) {
         optsPtr.pointee.fullscreen = fullscreen
         _ = withUnsafeMutableBytes(of: &optsPtr.pointee.fullscreen) { (ptr: UnsafeMutableRawBufferPointer) in

video/out/mac/view.swift

@@ -81,7 +81,7 @@ class View: NSView {
         if types.contains(.fileURL) || types.contains(.URL) {
             if let urls = pb.readObjects(forClasses: [NSURL.self]) as? [URL] {
                 let files = urls.map { $0.absoluteString }
-                EventsResponder.sharedInstance().handleFilesArray(files)
+                mpv?.open(files: files)
                 return true
             }
         } else if types.contains(.string) {
@@ -97,7 +97,7 @@ class View: NSView {
                     filesArray.append(path)
                 }
             }
-            EventsResponder.sharedInstance().handleFilesArray(filesArray)
+            mpv?.open(files: filesArray)
             return true
         }
         return false