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mirror of https://github.com/mpv-player/mpv synced 2024-12-22 23:02:37 +00:00
mpv/osdep/macosx_events.m
wm4 dcb5800357 osx: fix deadlock on exit with libmpv on OSX
There is explicit code to handle the libmpv case, but it expects that
a dispatch queue is running. This is not necessarily the case. E.g.
edit the simple.c mpv example not to do any playback and to destroy
the mpv handle immediately. It will freeze on exit, because nothing
will release the mpv_handle.

I'm not sure how this should be fixed, so disable it for now in
library mode.
2017-04-19 12:55:44 +02:00

546 lines
15 KiB
Objective-C

/*
* Cocoa Application Event Handling
*
* This file is part of mpv.
*
* mpv 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.
*
* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
*/
// Carbon header is included but Carbon is NOT linked to mpv's binary. This
// file only needs this include to use the keycode definitions in keymap.
#import <Carbon/Carbon.h>
// Media keys definitions
#import <IOKit/hidsystem/ev_keymap.h>
#import <Cocoa/Cocoa.h>
#include "mpv_talloc.h"
#include "input/event.h"
#include "input/input.h"
#include "player/client.h"
#include "input/keycodes.h"
// doesn't make much sense, but needed to access keymap functionality
#include "video/out/vo.h"
#include "osdep/macosx_compat.h"
#import "osdep/macosx_events_objc.h"
#import "osdep/macosx_application_objc.h"
#include "config.h"
@interface EventsResponder ()
{
struct input_ctx *_inputContext;
struct mpv_handle *_ctx;
BOOL _is_application;
NSCondition *_input_lock;
CFMachPortRef _mk_tap_port;
#if HAVE_APPLE_REMOTE
HIDRemote *_remote;
#endif
}
- (BOOL)handleMediaKey:(NSEvent *)event;
- (NSEvent *)handleKey:(NSEvent *)event;
- (BOOL)setMpvHandle:(struct mpv_handle *)ctx;
- (void)readEvents;
- (void)startAppleRemote;
- (void)stopAppleRemote;
- (void)startMediaKeys;
- (void)restartMediaKeys;
- (void)stopMediaKeys;
- (int)mapKeyModifiers:(int)cocoaModifiers;
- (int)keyModifierMask:(NSEvent *)event;
@end
#define NSLeftAlternateKeyMask (0x000020 | NSEventModifierFlagOption)
#define NSRightAlternateKeyMask (0x000040 | NSEventModifierFlagOption)
static bool LeftAltPressed(int mask)
{
return (mask & NSLeftAlternateKeyMask) == NSLeftAlternateKeyMask;
}
static bool RightAltPressed(int mask)
{
return (mask & NSRightAlternateKeyMask) == NSRightAlternateKeyMask;
}
static const struct mp_keymap keymap[] = {
// special keys
{kVK_Return, MP_KEY_ENTER}, {kVK_Escape, MP_KEY_ESC},
{kVK_Delete, MP_KEY_BACKSPACE}, {kVK_Option, MP_KEY_BACKSPACE},
{kVK_Control, MP_KEY_BACKSPACE}, {kVK_Shift, MP_KEY_BACKSPACE},
{kVK_Tab, MP_KEY_TAB},
// cursor keys
{kVK_UpArrow, MP_KEY_UP}, {kVK_DownArrow, MP_KEY_DOWN},
{kVK_LeftArrow, MP_KEY_LEFT}, {kVK_RightArrow, MP_KEY_RIGHT},
// navigation block
{kVK_Help, MP_KEY_INSERT}, {kVK_ForwardDelete, MP_KEY_DELETE},
{kVK_Home, MP_KEY_HOME}, {kVK_End, MP_KEY_END},
{kVK_PageUp, MP_KEY_PAGE_UP}, {kVK_PageDown, MP_KEY_PAGE_DOWN},
// F-keys
{kVK_F1, MP_KEY_F + 1}, {kVK_F2, MP_KEY_F + 2}, {kVK_F3, MP_KEY_F + 3},
{kVK_F4, MP_KEY_F + 4}, {kVK_F5, MP_KEY_F + 5}, {kVK_F6, MP_KEY_F + 6},
{kVK_F7, MP_KEY_F + 7}, {kVK_F8, MP_KEY_F + 8}, {kVK_F9, MP_KEY_F + 9},
{kVK_F10, MP_KEY_F + 10}, {kVK_F11, MP_KEY_F + 11}, {kVK_F12, MP_KEY_F + 12},
// numpad
{kVK_ANSI_KeypadPlus, '+'}, {kVK_ANSI_KeypadMinus, '-'},
{kVK_ANSI_KeypadMultiply, '*'}, {kVK_ANSI_KeypadDivide, '/'},
{kVK_ANSI_KeypadEnter, MP_KEY_KPENTER},
{kVK_ANSI_KeypadDecimal, MP_KEY_KPDEC},
{kVK_ANSI_Keypad0, MP_KEY_KP0}, {kVK_ANSI_Keypad1, MP_KEY_KP1},
{kVK_ANSI_Keypad2, MP_KEY_KP2}, {kVK_ANSI_Keypad3, MP_KEY_KP3},
{kVK_ANSI_Keypad4, MP_KEY_KP4}, {kVK_ANSI_Keypad5, MP_KEY_KP5},
{kVK_ANSI_Keypad6, MP_KEY_KP6}, {kVK_ANSI_Keypad7, MP_KEY_KP7},
{kVK_ANSI_Keypad8, MP_KEY_KP8}, {kVK_ANSI_Keypad9, MP_KEY_KP9},
{0, 0}
};
static int convert_key(unsigned key, unsigned charcode)
{
int mpkey = lookup_keymap_table(keymap, key);
if (mpkey)
return mpkey;
return charcode;
}
void cocoa_init_apple_remote(void)
{
[[EventsResponder sharedInstance] startAppleRemote];
}
void cocoa_uninit_apple_remote(void)
{
[[EventsResponder sharedInstance] stopAppleRemote];
}
static int mk_code(NSEvent *event)
{
return (([event data1] & 0xFFFF0000) >> 16);
}
static int mk_flags(NSEvent *event)
{
return ([event data1] & 0x0000FFFF);
}
static int mk_down(NSEvent *event)
{
return (((mk_flags(event) & 0xFF00) >> 8)) == 0xA;
}
static CGEventRef tap_event_callback(CGEventTapProxy proxy, CGEventType type,
CGEventRef event, void *ctx)
{
EventsResponder *responder = ctx;
if (type == kCGEventTapDisabledByTimeout) {
// The Mach Port receiving the taps became unresponsive for some
// reason, restart listening on it.
[responder restartMediaKeys];
return event;
}
if (type == kCGEventTapDisabledByUserInput)
return event;
NSEvent *nse = [NSEvent eventWithCGEvent:event];
if ([nse type] != NSEventTypeSystemDefined || [nse subtype] != 8)
// This is not a media key
return event;
if (mk_down(nse) && [responder handleMediaKey:nse]) {
// Handled this event, return nil so that it is removed from the
// global queue.
return nil;
} else {
// Was a media key but we were not interested in it. Leave it in the
// global queue by returning the original event.
return event;
}
}
void cocoa_init_media_keys(void)
{
[[EventsResponder sharedInstance] startMediaKeys];
}
void cocoa_uninit_media_keys(void)
{
[[EventsResponder sharedInstance] stopMediaKeys];
}
void cocoa_put_key(int keycode)
{
[[EventsResponder sharedInstance] putKey:keycode];
}
void cocoa_put_key_event(void *event)
{
[[EventsResponder sharedInstance] handleKey:event];
}
void cocoa_put_key_with_modifiers(int keycode, int modifiers)
{
keycode |= [[EventsResponder sharedInstance] mapKeyModifiers:modifiers];
cocoa_put_key(keycode);
}
void cocoa_set_input_context(struct input_ctx *input_context)
{
[[EventsResponder sharedInstance] setInputContext:input_context];
}
static void wakeup(void *context)
{
[[EventsResponder sharedInstance] readEvents];
}
void cocoa_set_mpv_handle(struct mpv_handle *ctx)
{
if ([[EventsResponder sharedInstance] setMpvHandle:ctx]) {
mpv_observe_property(ctx, 0, "duration", MPV_FORMAT_DOUBLE);
mpv_observe_property(ctx, 0, "time-pos", MPV_FORMAT_DOUBLE);
mpv_observe_property(ctx, 0, "pause", MPV_FORMAT_FLAG);
mpv_set_wakeup_callback(ctx, wakeup, NULL);
}
}
@implementation EventsResponder
+ (EventsResponder *)sharedInstance
{
static EventsResponder *responder = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
responder = [EventsResponder new];
});
return responder;
}
- (id)init
{
self = [super init];
if (self) {
_input_lock = [NSCondition new];
}
return self;
}
- (void)waitForInputContext
{
[_input_lock lock];
while (!_inputContext)
[_input_lock wait];
[_input_lock unlock];
}
- (void)setInputContext:(struct input_ctx *)ctx;
{
[_input_lock lock];
_inputContext = ctx;
[_input_lock signal];
[_input_lock unlock];
}
- (void)wakeup
{
[_input_lock lock];
if (_inputContext)
mp_input_wakeup(_inputContext);
[_input_lock unlock];
}
- (bool)queueCommand:(char *)cmd
{
bool r = false;
[_input_lock lock];
if (_inputContext) {
mp_cmd_t *cmdt = mp_input_parse_cmd(_inputContext, bstr0(cmd), "");
mp_input_queue_cmd(_inputContext, cmdt);
r = true;
}
[_input_lock unlock];
return r;
}
- (void)putKey:(int)keycode
{
[_input_lock lock];
if (_inputContext)
mp_input_put_key(_inputContext, keycode);
[_input_lock unlock];
}
- (BOOL)useAltGr
{
BOOL r = YES;
[_input_lock lock];
if (_inputContext)
r = mp_input_use_alt_gr(_inputContext);
[_input_lock unlock];
return r;
}
- (void)setIsApplication:(BOOL)isApplication
{
_is_application = isApplication;
}
- (BOOL)setMpvHandle:(struct mpv_handle *)ctx
{
if (_is_application) {
dispatch_sync(dispatch_get_main_queue(), ^{ _ctx = ctx; });
return YES;
} else {
mpv_detach_destroy(ctx);
return NO;
}
}
- (void)readEvents
{
dispatch_async(dispatch_get_main_queue(), ^{
while (_ctx) {
mpv_event *event = mpv_wait_event(_ctx, 0);
if (event->event_id == MPV_EVENT_NONE)
break;
[self processEvent:event];
}
});
}
-(void)processEvent:(struct mpv_event *)event
{
switch (event->event_id) {
case MPV_EVENT_SHUTDOWN: {
mpv_detach_destroy(_ctx);
_ctx = nil;
break;
}
}
if(_is_application) {
[NSApp processEvent:event];
}
}
- (void)startAppleRemote
{
#if HAVE_APPLE_REMOTE
dispatch_async(dispatch_get_main_queue(), ^{
self->_remote = [[HIDRemote alloc] init];
if (self->_remote) {
[self->_remote setDelegate:self];
[self->_remote startRemoteControl:kHIDRemoteModeExclusiveAuto];
}
});
#endif
}
- (void)stopAppleRemote
{
#if HAVE_APPLE_REMOTE
dispatch_async(dispatch_get_main_queue(), ^{
[self->_remote stopRemoteControl];
[self->_remote release];
});
#endif
}
- (void)restartMediaKeys
{
CGEventTapEnable(self->_mk_tap_port, true);
}
- (void)startMediaKeys
{
dispatch_async(dispatch_get_main_queue(), ^{
// Install a Quartz Event Tap. This will notify mpv through the
// returned Mach Port and cause mpv to execute the `tap_event_callback`
// function.
self->_mk_tap_port = CGEventTapCreate(kCGSessionEventTap,
kCGHeadInsertEventTap,
kCGEventTapOptionDefault,
CGEventMaskBit(NX_SYSDEFINED),
tap_event_callback,
self);
assert(self->_mk_tap_port != nil);
NSMachPort *port = (NSMachPort *)self->_mk_tap_port;
[[NSRunLoop mainRunLoop] addPort:port forMode:NSRunLoopCommonModes];
});
}
- (void)stopMediaKeys
{
dispatch_async(dispatch_get_main_queue(), ^{
NSMachPort *port = (NSMachPort *)self->_mk_tap_port;
[[NSRunLoop mainRunLoop] removePort:port forMode:NSRunLoopCommonModes];
CFRelease(self->_mk_tap_port);
self->_mk_tap_port = nil;
});
}
- (BOOL)handleMediaKey:(NSEvent *)event
{
NSDictionary *keymapd = @{
@(NX_KEYTYPE_PLAY): @(MP_KEY_PLAY),
@(NX_KEYTYPE_REWIND): @(MP_KEY_PREV),
@(NX_KEYTYPE_FAST): @(MP_KEY_NEXT),
@(NX_KEYTYPE_PREVIOUS): @(MP_KEY_REWIND),
@(NX_KEYTYPE_NEXT): @(MP_KEY_FORWARD),
};
return [self handleKey:mk_code(event)
withMask:[self keyModifierMask:event]
andMapping:keymapd];
}
- (void)hidRemote:(HIDRemote *)remote
eventWithButton:(HIDRemoteButtonCode)buttonCode
isPressed:(BOOL)isPressed
fromHardwareWithAttributes:(NSMutableDictionary *)attributes
{
if (!isPressed) return;
NSDictionary *keymapd = @{
@(kHIDRemoteButtonCodePlay): @(MP_AR_PLAY),
@(kHIDRemoteButtonCodePlayHold): @(MP_AR_PLAY_HOLD),
@(kHIDRemoteButtonCodeCenter): @(MP_AR_CENTER),
@(kHIDRemoteButtonCodeCenterHold): @(MP_AR_CENTER_HOLD),
@(kHIDRemoteButtonCodeLeft): @(MP_AR_PREV),
@(kHIDRemoteButtonCodeLeftHold): @(MP_AR_PREV_HOLD),
@(kHIDRemoteButtonCodeRight): @(MP_AR_NEXT),
@(kHIDRemoteButtonCodeRightHold): @(MP_AR_NEXT_HOLD),
@(kHIDRemoteButtonCodeMenu): @(MP_AR_MENU),
@(kHIDRemoteButtonCodeMenuHold): @(MP_AR_MENU_HOLD),
@(kHIDRemoteButtonCodeUp): @(MP_AR_VUP),
@(kHIDRemoteButtonCodeUpHold): @(MP_AR_VUP_HOLD),
@(kHIDRemoteButtonCodeDown): @(MP_AR_VDOWN),
@(kHIDRemoteButtonCodeDownHold): @(MP_AR_VDOWN_HOLD),
};
[self handleKey:buttonCode withMask:0 andMapping:keymapd];
}
- (int)mapKeyModifiers:(int)cocoaModifiers
{
int mask = 0;
if (cocoaModifiers & NSEventModifierFlagShift)
mask |= MP_KEY_MODIFIER_SHIFT;
if (cocoaModifiers & NSEventModifierFlagControl)
mask |= MP_KEY_MODIFIER_CTRL;
if (LeftAltPressed(cocoaModifiers) ||
(RightAltPressed(cocoaModifiers) && ![self useAltGr]))
mask |= MP_KEY_MODIFIER_ALT;
if (cocoaModifiers & NSEventModifierFlagCommand)
mask |= MP_KEY_MODIFIER_META;
return mask;
}
- (int)mapTypeModifiers:(NSEventType)type
{
NSDictionary *map = @{
@(NSEventTypeKeyDown) : @(MP_KEY_STATE_DOWN),
@(NSEventTypeKeyUp) : @(MP_KEY_STATE_UP),
};
return [map[@(type)] intValue];
}
- (int)keyModifierMask:(NSEvent *)event
{
return [self mapKeyModifiers:[event modifierFlags]] |
[self mapTypeModifiers:[event type]];
}
-(BOOL)handleMPKey:(int)key withMask:(int)mask
{
if (key > 0) {
cocoa_put_key(key | mask);
if (mask & MP_KEY_STATE_UP)
cocoa_put_key(MP_INPUT_RELEASE_ALL);
return YES;
} else {
return NO;
}
}
-(BOOL)handleKey:(int)key withMask:(int)mask andMapping:(NSDictionary *)mapping
{
int mpkey = [mapping[@(key)] intValue];
return [self handleMPKey:mpkey withMask:mask];
}
- (NSEvent*)handleKey:(NSEvent *)event
{
if ([event isARepeat]) return nil;
NSString *chars;
if ([self useAltGr] && RightAltPressed([event modifierFlags])) {
chars = [event characters];
} else {
chars = [event charactersIgnoringModifiers];
}
struct bstr t = bstr0([chars UTF8String]);
int key = convert_key([event keyCode], bstr_decode_utf8(t, &t));
if (key > -1)
[self handleMPKey:key withMask:[self keyModifierMask:event]];
return nil;
}
- (bool)processKeyEvent:(NSEvent *)event
{
if (event.type == NSEventTypeKeyDown || event.type == NSEventTypeKeyUp){
if (![[NSApp mainMenu] performKeyEquivalent:event])
[self handleKey:event];
return true;
}
return false;
}
- (void)handleFilesArray:(NSArray *)files
{
enum mp_dnd_action action = [NSEvent modifierFlags] &
NSEventModifierFlagShift ? DND_APPEND : DND_REPLACE;
size_t num_files = [files count];
char **files_utf8 = talloc_array(NULL, char*, num_files);
[files enumerateObjectsUsingBlock:^(NSString *p, NSUInteger i, BOOL *_){
if ([p hasPrefix:@"file:///.file/id="])
p = [[NSURL URLWithString:p] path];
char *filename = (char *)[p UTF8String];
size_t bytes = [p lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
files_utf8[i] = talloc_memdup(files_utf8, filename, bytes + 1);
}];
[_input_lock lock];
if (_inputContext)
mp_event_drop_files(_inputContext, num_files, files_utf8, action);
[_input_lock unlock];
talloc_free(files_utf8);
}
@end