osx: initial Touch Bar support

1 files changed, 272 insertions, 0 deletions

diff --git a/osdep/macosx_touchbar.m b/osdep/macosx_touchbar.m
new file mode 100644
index 0000000000..846ce6a933
--- /dev/null
+++ b/osdep/macosx_touchbar.m
@@ -0,0 +1,272 @@
+/*
+ * 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/>.
+ */
+
+#include "player/client.h"
+#import "macosx_touchbar.h"
+
+@implementation TouchBar
+
+@synthesize app = _app;
+@synthesize touchbarItems = _touchbar_items;
+@synthesize duration = _duration;
+@synthesize position = _position;
+
+- (id)init
+{
+    if (self = [super init]) {
+        self.touchbarItems = @{
+            seekBar: [NSMutableDictionary dictionaryWithDictionary:@{
+                @"type": @"slider",
+                @"name": @"Seek Bar",
+                @"cmd":  @"seek %f absolute-percent"
+            }],
+            play: [NSMutableDictionary dictionaryWithDictionary:@{
+                @"type":     @"button",
+                @"name":     @"Play Button",
+                @"cmd":      @"cycle pause",
+                @"image":    [NSImage imageNamed:NSImageNameTouchBarPauseTemplate],
+                @"imageAlt": [NSImage imageNamed:NSImageNameTouchBarPlayTemplate]
+            }],
+            previousItem: [NSMutableDictionary dictionaryWithDictionary:@{
+                @"type":  @"button",
+                @"name":  @"Previous Playlist Item",
+                @"cmd":   @"playlist-prev",
+                @"image": [NSImage imageNamed:NSImageNameTouchBarGoBackTemplate]
+            }],
+            nextItem: [NSMutableDictionary dictionaryWithDictionary:@{
+                @"type":  @"button",
+                @"name":  @"Next Playlist Item",
+                @"cmd":   @"playlist-next",
+                @"image": [NSImage imageNamed:NSImageNameTouchBarGoForwardTemplate]
+            }],
+            previousChapter: [NSMutableDictionary dictionaryWithDictionary:@{
+                @"type":  @"button",
+                @"name":  @"Previous Chapter",
+                @"cmd":   @"add chapter -1",
+                @"image": [NSImage imageNamed:NSImageNameTouchBarSkipBackTemplate]
+            }],
+            nextChapter: [NSMutableDictionary dictionaryWithDictionary:@{
+                @"type":  @"button",
+                @"name":  @"Next Chapter",
+                @"cmd":   @"add chapter 1",
+                @"image": [NSImage imageNamed:NSImageNameTouchBarSkipAheadTemplate]
+            }],
+            cycleAudio: [NSMutableDictionary dictionaryWithDictionary:@{
+                @"type":  @"button",
+                @"name":  @"Cycle Audio",
+                @"cmd":   @"cycle audio",
+                @"image": [NSImage imageNamed:NSImageNameTouchBarAudioInputTemplate]
+            }],
+            cycleSubtitle: [NSMutableDictionary dictionaryWithDictionary:@{
+                @"type":  @"button",
+                @"name":  @"Cycle Subtitle",
+                @"cmd":   @"cycle sub",
+                @"image": [NSImage imageNamed:NSImageNameTouchBarComposeTemplate]
+            }],
+            currentPosition: [NSMutableDictionary dictionaryWithDictionary:@{
+                @"type": @"text",
+                @"name": @"Current Position"
+            }],
+            timeLeft: [NSMutableDictionary dictionaryWithDictionary:@{
+                @"type": @"text",
+                @"name": @"Time Left"
+            }]
+        };
+    }
+    return self;
+}
+
+-(void)processEvent:(struct mpv_event *)event
+{
+    switch (event->event_id) {
+    case MPV_EVENT_END_FILE: {
+        self.position = 0;
+        self.duration = 0;
+        break;
+    }
+    case MPV_EVENT_PROPERTY_CHANGE: {
+        [self handlePropertyChange:(mpv_event_property *)event->data];
+        break;
+    }
+    }
+}
+
+-(void)handlePropertyChange:(struct mpv_event_property *)property
+{
+    NSString *name = [NSString stringWithUTF8String:property->name];
+    mpv_format format = property->format;
+
+    if ([name isEqualToString:@"time-pos"] && format == MPV_FORMAT_DOUBLE) {
+        self.position = *(double *)property->data;
+        self.position = self.position < 0 ? 0 : self.position;
+        [self updateTouchBarTimeItems];
+    } else if ([name isEqualToString:@"duration"] && format == MPV_FORMAT_DOUBLE) {
+        self.duration = *(double *)property->data;
+        [self updateTouchBarTimeItems];
+    } else if ([name isEqualToString:@"pause"] && format == MPV_FORMAT_FLAG) {
+        NSButton *playButton = self.touchbarItems[play][@"view"];
+        if (*(int *)property->data) {
+            playButton.image = self.touchbarItems[play][@"imageAlt"];
+        } else {
+            playButton.image = self.touchbarItems[play][@"image"];
+        }
+    }
+}
+
+- (nullable NSTouchBarItem *)touchBar:(NSTouchBar *)touchBar
+                makeItemForIdentifier:(NSTouchBarItemIdentifier)identifier
+{
+    if ([self.touchbarItems[identifier][@"type"] isEqualToString:@"slider"]) {
+        NSSliderTouchBarItem *tbItem = [[NSSliderTouchBarItem alloc] initWithIdentifier:identifier];
+        tbItem.slider.minValue = 0.0f;
+        tbItem.slider.maxValue = 100.0f;
+        tbItem.target = self;
+        tbItem.action = @selector(seekbarChanged:);
+        tbItem.customizationLabel = self.touchbarItems[identifier][@"name"];
+        [self.touchbarItems[identifier] setObject:tbItem.slider forKey:@"view"];
+        return tbItem;
+    } else if ([self.touchbarItems[identifier][@"type"] isEqualToString:@"button"]) {
+        NSCustomTouchBarItem *tbItem = [[NSCustomTouchBarItem alloc] initWithIdentifier:identifier];
+        NSImage *tbImage = self.touchbarItems[identifier][@"image"];
+        NSButton *tbButton = [NSButton buttonWithImage:tbImage target:self action:@selector(buttonAction:)];
+        tbItem.view = tbButton;
+        tbItem.customizationLabel = self.touchbarItems[identifier][@"name"];
+        [self.touchbarItems[identifier] setObject:tbButton forKey:@"view"];
+        return tbItem;
+    } else if ([self.touchbarItems[identifier][@"type"] isEqualToString:@"text"]) {
+        NSCustomTouchBarItem *tbItem = [[NSCustomTouchBarItem alloc] initWithIdentifier:identifier];
+        NSTextField *tbText = [NSTextField labelWithString:@"0:00"];
+        tbText.alignment = NSTextAlignmentCenter;
+        tbItem.view = tbText;
+        tbItem.customizationLabel = self.touchbarItems[identifier][@"name"];
+        [self.touchbarItems[identifier] setObject:tbText forKey:@"view"];
+        return tbItem;
+    }
+
+    return nil;
+}
+
+- (NSString *)formatTime:(int)time
+{
+    int seconds = time % 60;
+    int minutes = (time / 60) % 60;
+    int hours = time / (60 * 60);
+
+    NSString *stime = hours > 0 ? [NSString stringWithFormat:@"%d:", hours] : @"";
+    stime = (stime.length > 0 || minutes > 9) ?
+        [NSString stringWithFormat:@"%@%02d:", stime, minutes] :
+        [NSString stringWithFormat:@"%d:", minutes];
+    stime = [NSString stringWithFormat:@"%@%02d", stime, seconds];
+
+    return stime;
+}
+
+- (void)removeConstraintForIdentifier:(NSTouchBarItemIdentifier)identifier
+{
+    NSTextField *field = self.touchbarItems[identifier][@"view"];
+    [field removeConstraint:self.touchbarItems[identifier][@"constrain"]];
+}
+
+- (void)applyConstraintFromString:(NSString *)string
+                    forIdentifier:(NSTouchBarItemIdentifier)identifier
+{
+    NSTextField *field = self.touchbarItems[identifier][@"view"];
+    if (field) {
+        NSString *fString = [[string componentsSeparatedByCharactersInSet:
+            [NSCharacterSet decimalDigitCharacterSet]] componentsJoinedByString:@"0"];
+        NSTextField *textField = [NSTextField labelWithString:fString];
+        NSSize size = [textField frame].size;
+
+        NSLayoutConstraint *con =
+            [NSLayoutConstraint constraintWithItem:field
+                                         attribute:NSLayoutAttributeWidth
+                                         relatedBy:NSLayoutRelationEqual
+                                            toItem:nil
+                                         attribute:NSLayoutAttributeNotAnAttribute
+                                        multiplier:1.0
+                                          constant:(int)ceil(size.width*1.1)];
+        [field addConstraint:con];
+        [self.touchbarItems[identifier] setObject:con forKey:@"constrain"];
+    }
+}
+
+- (void)updateTouchBarTimeItemConstrains
+{
+    [self removeConstraintForIdentifier:currentPosition];
+    [self removeConstraintForIdentifier:timeLeft];
+
+    if (self.duration <= 0) {
+        [self applyConstraintFromString:[self formatTime:self.position]
+                          forIdentifier:currentPosition];
+    } else {
+        NSString *durFormat = [self formatTime:self.duration];
+
+        [self applyConstraintFromString:durFormat forIdentifier:currentPosition];
+        [self applyConstraintFromString:[NSString stringWithFormat:@"-%@", durFormat]
+                          forIdentifier:timeLeft];
+    }
+}
+
+- (void)updateTouchBarTimeItems
+{
+    NSSlider *seekSlider = self.touchbarItems[seekBar][@"view"];
+    NSTextField *curPosItem = self.touchbarItems[currentPosition][@"view"];
+    NSTextField *timeLeftItem = self.touchbarItems[timeLeft][@"view"];
+
+    if (self.duration <= 0) {
+        seekSlider.enabled = NO;
+        seekSlider.doubleValue = 0;
+        timeLeftItem.stringValue = @"";
+    }
+    else {
+        seekSlider.enabled = YES;
+        if (!seekSlider.highlighted)
+            seekSlider.doubleValue = (self.position/self.duration)*100;
+        int left = (int)(floor(self.duration)-floor(self.position));
+        NSString *leftFormat = [self formatTime:left];
+        timeLeftItem.stringValue = [NSString stringWithFormat:@"-%@", leftFormat];
+    }
+    NSString *posFormat = [self formatTime:(int)floor(self.position)];
+    curPosItem.stringValue = posFormat;
+
+    [self updateTouchBarTimeItemConstrains];
+}
+
+- (NSString *)getIdentifierFromView:(id)view
+{
+    NSString *identifier;
+    for (identifier in self.touchbarItems)
+        if([self.touchbarItems[identifier][@"view"] isEqual:view])
+            break;
+    return identifier;
+}
+
+- (void)buttonAction:(NSButton *)sender
+{
+    NSString *identifier = [self getIdentifierFromView:sender];
+    [self.app queueCommand:(char *)[self.touchbarItems[identifier][@"cmd"] UTF8String]];
+}
+
+- (void)seekbarChanged:(NSSliderTouchBarItem *)sender
+{
+    NSString *identifier = [self getIdentifierFromView:sender.slider];
+    NSString *seek = [NSString stringWithFormat:
+        self.touchbarItems[identifier][@"cmd"], sender.slider.doubleValue];
+    [self.app queueCommand:(char *)[seek UTF8String]];
+}
+
+@end