blob: 698add75b42c535a3a91170984c82e641ba2eeb0 [file] [log] [blame]
/*
* Copyright (C) 2012 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "config.h"
#if (PLATFORM(IOS_FAMILY) || (PLATFORM(MAC) && ENABLE(VIDEO_PRESENTATION_MODE))) && ENABLE(VIDEO)
#import "TextTrackRepresentationCocoa.h"
#import "FloatRect.h"
#import "GraphicsContextCG.h"
#import "IntRect.h"
#if PLATFORM(IOS_FAMILY)
#import "WebCoreThread.h"
#import "WebCoreThreadRun.h"
#endif
#import <pal/spi/cocoa/QuartzCoreSPI.h>
@interface WebCoreTextTrackRepresentationCocoaHelper : NSObject <CALayerDelegate> {
WebCore::TextTrackRepresentationCocoa* _parent;
}
- (id)initWithParent:(WebCore::TextTrackRepresentationCocoa*)parent;
@property (assign) WebCore::TextTrackRepresentationCocoa* parent;
@end
@implementation WebCoreTextTrackRepresentationCocoaHelper
- (id)initWithParent:(WebCore::TextTrackRepresentationCocoa*)parent
{
if (!(self = [super init]))
return nil;
self.parent = parent;
return self;
}
- (void)dealloc
{
self.parent = nullptr;
[super dealloc];
}
- (void)setParent:(WebCore::TextTrackRepresentationCocoa*)parent
{
if (_parent)
[_parent->platformLayer() removeObserver:self forKeyPath:@"bounds"];
_parent = parent;
if (_parent)
[_parent->platformLayer() addObserver:self forKeyPath:@"bounds" options:0 context:0];
}
- (WebCore::TextTrackRepresentationCocoa*)parent
{
return _parent;
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
UNUSED_PARAM(change);
UNUSED_PARAM(context);
#if PLATFORM(IOS_FAMILY)
WebThreadRun(^{
if (_parent && [keyPath isEqual:@"bounds"] && object == _parent->platformLayer())
_parent->client().textTrackRepresentationBoundsChanged(_parent->bounds());
});
#else
if (_parent && [keyPath isEqual:@"bounds"] && object == _parent->platformLayer())
_parent->boundsChanged();
#endif
}
- (id)actionForLayer:(CALayer *)layer forKey:(NSString *)event
{
UNUSED_PARAM(layer);
UNUSED_PARAM(event);
// Returning a NSNull from this delegate method disables all implicit CALayer actions.
return [NSNull null];
}
@end
namespace WebCore {
std::unique_ptr<TextTrackRepresentation> TextTrackRepresentation::create(TextTrackRepresentationClient& client)
{
return makeUnique<TextTrackRepresentationCocoa>(client);
}
TextTrackRepresentationCocoa::TextTrackRepresentationCocoa(TextTrackRepresentationClient& client)
: m_client(client)
, m_layer(adoptNS([[CALayer alloc] init]))
, m_delegate(adoptNS([[WebCoreTextTrackRepresentationCocoaHelper alloc] initWithParent:this]))
{
[m_layer setDelegate:m_delegate.get()];
[m_layer setContentsGravity:kCAGravityBottom];
[m_layer setName:@"TextTrackRepresentation"];
}
TextTrackRepresentationCocoa::~TextTrackRepresentationCocoa()
{
[m_layer setDelegate:nil];
[m_delegate setParent:nullptr];
}
void TextTrackRepresentationCocoa::update()
{
if (auto representation = m_client.createTextTrackRepresentationImage())
[m_layer setContents:(__bridge id)representation->nativeImage()->platformImage().get()];
}
void TextTrackRepresentationCocoa::setContentScale(float scale)
{
[m_layer setContentsScale:scale];
}
void TextTrackRepresentationCocoa::setHidden(bool hidden) const
{
[m_layer setHidden:hidden];
}
IntRect TextTrackRepresentationCocoa::bounds() const
{
return enclosingIntRect(FloatRect([m_layer bounds]));
}
void TextTrackRepresentationCocoa::boundsChanged()
{
callOnMainThread([weakThis = WeakPtr { *this }] {
if (weakThis)
weakThis->client().textTrackRepresentationBoundsChanged(weakThis->bounds());
});
}
} // namespace WebCore
#endif // (PLATFORM(IOS_FAMILY) || (PLATFORM(MAC) && ENABLE(VIDEO_PRESENTATION_MODE))) && ENABLE(VIDEO)