WebVideoFullscreenController.mm [plain text]
/*
* Copyright (C) 2009 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 ENABLE(VIDEO)
#import "WebVideoFullscreenController.h"
#import "WebVideoFullscreenHUDWindowController.h"
#import "WebWindowAnimation.h"
#import <Carbon/Carbon.h>
#import <QTKit/QTKit.h>
#import <WebCore/DisplaySleepDisabler.h>
#import <WebCore/HTMLMediaElement.h>
#import <WebCore/SoftLinking.h>
#import <objc/objc-runtime.h>
#import <wtf/UnusedParam.h>
#if USE(GSTREAMER)
#import <WebCore/GStreamerGWorld.h>
#endif
using namespace WebCore;
SOFT_LINK_FRAMEWORK(QTKit)
SOFT_LINK_CLASS(QTKit, QTMovieLayer)
SOFT_LINK_POINTER(QTKit, QTMovieRateDidChangeNotification, NSString *)
#define QTMovieRateDidChangeNotification getQTMovieRateDidChangeNotification()
@interface WebVideoFullscreenWindow : NSWindow
#ifndef BUILDING_ON_LEOPARD
<NSAnimationDelegate>
#endif
{
SEL _controllerActionOnAnimationEnd;
WebWindowScaleAnimation *_fullscreenAnimation; // (retain)
}
- (void)animateFromRect:(NSRect)startRect toRect:(NSRect)endRect withSubAnimation:(NSAnimation *)subAnimation controllerAction:(SEL)controllerAction;
@end
@interface WebVideoFullscreenController(HUDWindowControllerDelegate) <WebVideoFullscreenHUDWindowControllerDelegate>
- (void)requestExitFullscreenWithAnimation:(BOOL)animation;
- (void)updateMenuAndDockForFullscreen;
- (void)updatePowerAssertions;
@end
@interface NSWindow(IsOnActiveSpaceAdditionForTigerAndLeopard)
- (BOOL)isOnActiveSpace;
@end
@implementation WebVideoFullscreenController
- (id)init
{
// Do not defer window creation, to make sure -windowNumber is created (needed by WebWindowScaleAnimation).
NSWindow *window = [[WebVideoFullscreenWindow alloc] initWithContentRect:NSZeroRect styleMask:NSBorderlessWindowMask backing:NSBackingStoreBuffered defer:NO];
self = [super initWithWindow:window];
[window release];
if (!self)
return nil;
[self windowDidLoad];
return self;
}
- (void)dealloc
{
ASSERT(!_backgroundFullscreenWindow);
ASSERT(!_fadeAnimation);
[[NSNotificationCenter defaultCenter] removeObserver:self];
[super dealloc];
}
- (WebVideoFullscreenWindow *)fullscreenWindow
{
return (WebVideoFullscreenWindow *)[super window];
}
- (void)setupVideoOverlay:(QTMovieLayer*)layer
{
WebVideoFullscreenWindow *window = [self fullscreenWindow];
#if USE(GSTREAMER)
if (_mediaElement && _mediaElement->platformMedia().type == PlatformMedia::GStreamerGWorldType) {
GStreamerGWorld* gstGworld = _mediaElement->platformMedia().media.gstreamerGWorld;
if (gstGworld->enterFullscreen())
[window setContentView:gstGworld->platformVideoWindow()->window()];
}
#else
[[window contentView] setLayer:layer];
[[window contentView] setWantsLayer:YES];
if (_mediaElement && _mediaElement->platformMedia().type == PlatformMedia::QTMovieType)
[layer setMovie:_mediaElement->platformMedia().media.qtMovie];
#endif
}
- (void)windowDidLoad
{
WebVideoFullscreenWindow *window = [self fullscreenWindow];
[window setHasShadow:YES]; // This is nicer with a shadow.
[window setLevel:NSPopUpMenuWindowLevel-1];
QTMovieLayer *layer = [[getQTMovieLayerClass() alloc] init];
[self setupVideoOverlay:layer];
[layer release];
#if !USE(GSTREAMER)
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationDidResignActive:) name:NSApplicationDidResignActiveNotification object:NSApp];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationDidChangeScreenParameters:) name:NSApplicationDidChangeScreenParametersNotification object:NSApp];
#endif
}
- (HTMLMediaElement*)mediaElement
{
return _mediaElement.get();
}
- (void)setMediaElement:(HTMLMediaElement*)mediaElement
{
_mediaElement = mediaElement;
if ([self isWindowLoaded]) {
QTMovieLayer *movieLayer = (QTMovieLayer *)[[[self fullscreenWindow] contentView] layer];
ASSERT(movieLayer && [movieLayer isKindOfClass:[getQTMovieLayerClass() class]]);
[self setupVideoOverlay:movieLayer];
#if !USE(GSTREAMER)
ASSERT([movieLayer movie]);
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(rateChanged:)
name:QTMovieRateDidChangeNotification
object:[movieLayer movie]];
#endif
}
}
- (id <WebVideoFullscreenControllerDelegate>)delegate
{
return _delegate;
}
- (void)setDelegate:(id <WebVideoFullscreenControllerDelegate>)delegate
{
_delegate = delegate;
}
- (CGFloat)clearFadeAnimation
{
[_fadeAnimation stopAnimation];
CGFloat previousAlpha = [_fadeAnimation currentAlpha];
[_fadeAnimation setWindow:nil];
[_fadeAnimation release];
_fadeAnimation = nil;
return previousAlpha;
}
- (void)windowDidExitFullscreen
{
#if USE(GSTREAMER)
if (_mediaElement && _mediaElement->platformMedia().type == PlatformMedia::GStreamerGWorldType)
_mediaElement->platformMedia().media.gstreamerGWorld->exitFullscreen();
#endif
[self clearFadeAnimation];
[[self window] close];
[self setWindow:nil];
[self updateMenuAndDockForFullscreen];
[self updatePowerAssertions];
[_hudController setDelegate:nil];
[_hudController release];
_hudController = nil;
[_backgroundFullscreenWindow close];
[_backgroundFullscreenWindow release];
_backgroundFullscreenWindow = nil;
[self autorelease]; // Associated -retain is in -exitFullscreen.
_isEndingFullscreen = NO;
}
- (void)windowDidEnterFullscreen
{
[self clearFadeAnimation];
ASSERT(!_hudController);
_hudController = [[WebVideoFullscreenHUDWindowController alloc] init];
[_hudController setDelegate:self];
[self updateMenuAndDockForFullscreen];
[self updatePowerAssertions];
[NSCursor setHiddenUntilMouseMoves:YES];
// Give the HUD keyboard focus initially
[_hudController fadeWindowIn];
}
- (NSRect)mediaElementRect
{
return _mediaElement->screenRect();
}
- (void)applicationDidResignActive:(NSNotification*)notification
{
UNUSED_PARAM(notification);
// Check to see if the fullscreenWindow is on the active space; this function is available
// on 10.6 and later, so default to YES if the function is not available:
NSWindow* fullscreenWindow = [self fullscreenWindow];
BOOL isOnActiveSpace = ([fullscreenWindow respondsToSelector:@selector(isOnActiveSpace)] ? [fullscreenWindow isOnActiveSpace] : YES);
// Replicate the QuickTime Player (X) behavior when losing active application status:
// Is the fullscreen screen the main screen? (Note: this covers the case where only a
// single screen is available.) Is the fullscreen screen on the current space? IFF so,
// then exit fullscreen mode.
if ([fullscreenWindow screen] == [[NSScreen screens] objectAtIndex:0] && isOnActiveSpace)
[self requestExitFullscreenWithAnimation:NO];
}
// MARK: -
// MARK: Exposed Interface
static void constrainFrameToRatioOfFrame(NSRect *frameToConstrain, const NSRect *frame)
{
// Keep a constrained aspect ratio for the destination window
CGFloat originalRatio = frame->size.width / frame->size.height;
CGFloat newRatio = frameToConstrain->size.width / frameToConstrain->size.height;
if (newRatio > originalRatio) {
CGFloat newWidth = originalRatio * frameToConstrain->size.height;
CGFloat diff = frameToConstrain->size.width - newWidth;
frameToConstrain->size.width = newWidth;
frameToConstrain->origin.x += diff / 2;
} else {
CGFloat newHeight = frameToConstrain->size.width / originalRatio;
CGFloat diff = frameToConstrain->size.height - newHeight;
frameToConstrain->size.height = newHeight;
frameToConstrain->origin.y += diff / 2;
}
}
static NSWindow *createBackgroundFullscreenWindow(NSRect frame, int level)
{
NSWindow *window = [[NSWindow alloc] initWithContentRect:frame styleMask:NSBorderlessWindowMask backing:NSBackingStoreBuffered defer:NO];
[window setOpaque:YES];
[window setBackgroundColor:[NSColor blackColor]];
[window setLevel:level];
[window setReleasedWhenClosed:NO];
return window;
}
- (void)setupFadeAnimationIfNeededAndFadeIn:(BOOL)fadeIn
{
CGFloat initialAlpha = fadeIn ? 0 : 1;
if (_fadeAnimation) {
// Make sure we support queuing animation if the previous one isn't over yet
initialAlpha = [self clearFadeAnimation];
}
if (!_forceDisableAnimation)
_fadeAnimation = [[WebWindowFadeAnimation alloc] initWithDuration:0.2 window:_backgroundFullscreenWindow initialAlpha:initialAlpha finalAlpha:fadeIn ? 1 : 0];
}
- (void)enterFullscreen:(NSScreen *)screen
{
if (!screen)
screen = [NSScreen mainScreen];
NSRect frame = [self mediaElementRect];
NSRect endFrame = [screen frame];
constrainFrameToRatioOfFrame(&endFrame, &frame);
// Create a black window if needed
if (!_backgroundFullscreenWindow)
_backgroundFullscreenWindow = createBackgroundFullscreenWindow([screen frame], [[self window] level]-1);
else
[_backgroundFullscreenWindow setFrame:[screen frame] display:NO];
[self setupFadeAnimationIfNeededAndFadeIn:YES];
if (_forceDisableAnimation) {
// This will disable scale animation
frame = NSZeroRect;
}
[[self fullscreenWindow] animateFromRect:frame toRect:endFrame withSubAnimation:_fadeAnimation controllerAction:@selector(windowDidEnterFullscreen)];
[_backgroundFullscreenWindow orderWindow:NSWindowBelow relativeTo:[[self fullscreenWindow] windowNumber]];
}
- (void)exitFullscreen
{
if (_isEndingFullscreen)
return;
_isEndingFullscreen = YES;
[_hudController closeWindow];
NSRect endFrame = [self mediaElementRect];
[self setupFadeAnimationIfNeededAndFadeIn:NO];
if (_forceDisableAnimation) {
// This will disable scale animation
endFrame = NSZeroRect;
}
// We have to retain ourselves because we want to be alive for the end of the animation.
// If our owner releases us we could crash if this is not the case.
// Balanced in windowDidExitFullscreen
[self retain];
[[self fullscreenWindow] animateFromRect:[[self window] frame] toRect:endFrame withSubAnimation:_fadeAnimation controllerAction:@selector(windowDidExitFullscreen)];
}
- (void)applicationDidChangeScreenParameters:(NSNotification*)notification
{
UNUSED_PARAM(notification);
// The user may have changed the main screen by moving the menu bar, or they may have changed
// the Dock's size or location, or they may have changed the fullscreen screen's dimensions.
// Update our presentation parameters, and ensure that the full screen window occupies the
// entire screen:
[self updateMenuAndDockForFullscreen];
[[self window] setFrame:[[[self window] screen] frame] display:YES];
}
- (void)updateMenuAndDockForFullscreen
{
// NSApplicationPresentationOptions is available on > 10.6 only:
#ifndef BUILDING_ON_LEOPARD
NSApplicationPresentationOptions options = NSApplicationPresentationDefault;
NSScreen* fullscreenScreen = [[self window] screen];
if (!_isEndingFullscreen) {
// Auto-hide the menu bar if the fullscreenScreen contains the menu bar:
// NOTE: if the fullscreenScreen contains the menu bar but not the dock, we must still
// auto-hide the dock, or an exception will be thrown.
if ([[NSScreen screens] objectAtIndex:0] == fullscreenScreen)
options |= (NSApplicationPresentationAutoHideMenuBar | NSApplicationPresentationAutoHideDock);
// Check if the current screen contains the dock by comparing the screen's frame to its
// visibleFrame; if a dock is present, the visibleFrame will differ. If the current screen
// contains the dock, hide it.
else if (!NSEqualRects([fullscreenScreen frame], [fullscreenScreen visibleFrame]))
options |= NSApplicationPresentationAutoHideDock;
}
if ([NSApp respondsToSelector:@selector(setPresentationOptions:)])
[NSApp setPresentationOptions:options];
else
#endif
SetSystemUIMode(_isEndingFullscreen ? kUIModeNormal : kUIModeAllHidden, 0);
}
- (void)updatePowerAssertions
{
float rate = 0;
if (_mediaElement && _mediaElement->platformMedia().type == PlatformMedia::QTMovieType)
rate = [_mediaElement->platformMedia().media.qtMovie rate];
if (rate && !_isEndingFullscreen) {
if (!_displaySleepDisabler)
_displaySleepDisabler = DisplaySleepDisabler::create("com.apple.WebCore - Fullscreen video");
} else
_displaySleepDisabler = nullptr;
}
// MARK: -
// MARK: Window callback
- (void)_requestExit
{
if (_mediaElement)
_mediaElement->exitFullscreen();
_forceDisableAnimation = NO;
}
- (void)requestExitFullscreenWithAnimation:(BOOL)animation
{
if (_isEndingFullscreen)
return;
_forceDisableAnimation = !animation;
[self performSelector:@selector(_requestExit) withObject:nil afterDelay:0];
}
- (void)requestExitFullscreen
{
[self requestExitFullscreenWithAnimation:YES];
}
- (void)fadeHUDIn
{
[_hudController fadeWindowIn];
}
// MARK: -
// MARK: QTMovie callbacks
- (void)rateChanged:(NSNotification *)unusedNotification
{
UNUSED_PARAM(unusedNotification);
[_hudController updateRate];
[self updatePowerAssertions];
}
@end
@implementation WebVideoFullscreenWindow
- (id)initWithContentRect:(NSRect)contentRect styleMask:(NSUInteger)aStyle backing:(NSBackingStoreType)bufferingType defer:(BOOL)flag
{
UNUSED_PARAM(aStyle);
self = [super initWithContentRect:contentRect styleMask:NSBorderlessWindowMask backing:bufferingType defer:flag];
if (!self)
return nil;
[self setOpaque:NO];
[self setBackgroundColor:[NSColor clearColor]];
[self setIgnoresMouseEvents:NO];
[self setAcceptsMouseMovedEvents:YES];
return self;
}
- (void)dealloc
{
ASSERT(!_fullscreenAnimation);
[super dealloc];
}
- (BOOL)resignFirstResponder
{
return NO;
}
- (BOOL)canBecomeKeyWindow
{
return NO;
}
- (void)mouseDown:(NSEvent *)theEvent
{
UNUSED_PARAM(theEvent);
}
- (void)cancelOperation:(id)sender
{
UNUSED_PARAM(sender);
[[self windowController] requestExitFullscreen];
}
- (void)animatedResizeDidEnd
{
// Call our windowController.
if (_controllerActionOnAnimationEnd)
[[self windowController] performSelector:_controllerActionOnAnimationEnd];
_controllerActionOnAnimationEnd = NULL;
}
//
// This function will animate a change of frame rectangle
// We support queuing animation, that means that we'll correctly
// interrupt the running animation, and queue the next one.
//
- (void)animateFromRect:(NSRect)startRect toRect:(NSRect)endRect withSubAnimation:(NSAnimation *)subAnimation controllerAction:(SEL)controllerAction
{
_controllerActionOnAnimationEnd = controllerAction;
BOOL wasAnimating = NO;
if (_fullscreenAnimation) {
wasAnimating = YES;
// Interrupt any running animation.
[_fullscreenAnimation stopAnimation];
// Save the current rect to ensure a smooth transition.
startRect = [_fullscreenAnimation currentFrame];
[_fullscreenAnimation release];
_fullscreenAnimation = nil;
}
if (NSIsEmptyRect(startRect) || NSIsEmptyRect(endRect)) {
// Fakely end the subanimation.
[subAnimation setCurrentProgress:1];
// And remove the weak link to the window.
[subAnimation stopAnimation];
[self setFrame:endRect display:NO];
[self makeKeyAndOrderFront:self];
[self animatedResizeDidEnd];
return;
}
if (!wasAnimating) {
// We'll downscale the window during the animation based on the higher resolution rect
BOOL higherResolutionIsEndRect = startRect.size.width < endRect.size.width && startRect.size.height < endRect.size.height;
[self setFrame:higherResolutionIsEndRect ? endRect : startRect display:NO];
}
ASSERT(!_fullscreenAnimation);
_fullscreenAnimation = [[WebWindowScaleAnimation alloc] initWithHintedDuration:0.2 window:self initalFrame:startRect finalFrame:endRect];
[_fullscreenAnimation setSubAnimation:subAnimation];
[_fullscreenAnimation setDelegate:self];
// Make sure the animation has scaled the window before showing it.
[_fullscreenAnimation setCurrentProgress:0];
[self makeKeyAndOrderFront:self];
[_fullscreenAnimation startAnimation];
}
- (void)animationDidEnd:(NSAnimation *)animation
{
if (![NSThread isMainThread]) {
[self performSelectorOnMainThread:@selector(animationDidEnd:) withObject:animation waitUntilDone:NO];
return;
}
if (animation != _fullscreenAnimation)
return;
// The animation is not really over and was interrupted
// Don't send completion events.
if ([animation currentProgress] < 1.0)
return;
// Ensure that animation (and subanimation) don't keep
// the weak reference to the window ivar that may be destroyed from
// now on.
[_fullscreenAnimation setWindow:nil];
[_fullscreenAnimation autorelease];
_fullscreenAnimation = nil;
[self animatedResizeDidEnd];
}
- (void)mouseMoved:(NSEvent *)theEvent
{
UNUSED_PARAM(theEvent);
[[self windowController] fadeHUDIn];
}
@end
#endif /* ENABLE(VIDEO) */