/*
 * Copyright (C) 2017 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.
 */

#include "config.h"

#if PLATFORM(MAC)

#import "PlatformUtilities.h"
#import "PlatformWebView.h"
#import "Test.h"
#import "TestWKWebView.h"
#import <JavaScriptCore/JavaScriptCore.h>
#import <WebKit/WKPagePrivateMac.h>
#import <WebKit/WKPreferencesPrivate.h>
#import <WebKit/WKSerializedScriptValue.h>
#import <WebKit/WKUIDelegatePrivate.h>
#import <WebKit/WKURLCF.h>
#import <WebKit/WKView.h>
#import <WebKit/WKViewPrivate.h>
#import <WebKit/WKWebViewConfigurationPrivate.h>
#import <WebKit/WKWebViewPrivate.h>
#import <wtf/RetainPtr.h>
#import <wtf/Seconds.h>

static bool receivedLoadedMessage;

static bool hasVideoInPictureInPictureValue;
static bool hasVideoInPictureInPictureCalled;

static bool onLoadCompleted = false;
static bool fetchOnLoadedCompletedDone = false;

static void onLoadedCompletedCallback(WKSerializedScriptValueRef serializedResultValue, WKErrorRef error, void*)
{
    EXPECT_NULL(error);
    
    JSGlobalContextRef scriptContext = JSGlobalContextCreate(0);
    
    JSValueRef resultValue = WKSerializedScriptValueDeserialize(serializedResultValue, scriptContext, 0);
    EXPECT_TRUE(JSValueIsBoolean(scriptContext, resultValue));
    
    fetchOnLoadedCompletedDone = true;
    onLoadCompleted = JSValueToBoolean(scriptContext, resultValue);
    
    JSGlobalContextRelease(scriptContext);
}

static void waitUntilOnLoadIsCompleted(WKPageRef page)
{
    onLoadCompleted = false;
    while (!onLoadCompleted) {
        fetchOnLoadedCompletedDone = false;
        WKPageRunJavaScriptInMainFrame(page, TestWebKitAPI::Util::toWK("window.onloadcompleted !== undefined").get(), 0, onLoadedCompletedCallback);
        TestWebKitAPI::Util::run(&fetchOnLoadedCompletedDone);
    }
}

static void didFinishNavigation(WKPageRef, WKNavigationRef, WKTypeRef, const void*)
{
    receivedLoadedMessage = true;
}

static void hasVideoInPictureInPictureDidChange(WKPageRef, bool hasVideoInPictureInPicture, const void* context)
{
    hasVideoInPictureInPictureValue = hasVideoInPictureInPicture;
    hasVideoInPictureInPictureCalled = true;
}

@interface PictureInPictureUIDelegate : NSObject <WKUIDelegate, WKScriptMessageHandler>
@end

@implementation PictureInPictureUIDelegate

- (void)_webView:(WKWebView *)webView hasVideoInPictureInPictureDidChange:(BOOL)hasVideoInPictureInPicture
{
    hasVideoInPictureInPictureValue = hasVideoInPictureInPicture;
    hasVideoInPictureInPictureCalled = true;
}

- (void)userContentController:(WKUserContentController *)userContentController didReceiveScriptMessage:(WKScriptMessage *)message
{
    NSString *bodyString = (NSString *)[message body];
    if ([bodyString isEqualToString:@"load"])
        receivedLoadedMessage = true;
}
@end

namespace TestWebKitAPI {
    
TEST(PictureInPicture, WKUIDelegate)
{
    RetainPtr<WKWebViewConfiguration> configuration = adoptNS([[WKWebViewConfiguration alloc] init]);
    RetainPtr<WKWebView> webView = adoptNS([[WKWebView alloc] initWithFrame:NSMakeRect(0, 0, 640, 480) configuration:configuration.get()]);
    [configuration preferences]._fullScreenEnabled = YES;
    [configuration preferences]._allowsPictureInPictureMediaPlayback = YES;
    RetainPtr<PictureInPictureUIDelegate> handler = adoptNS([[PictureInPictureUIDelegate alloc] init]);
    [[configuration userContentController] addScriptMessageHandler:handler.get() name:@"pictureInPictureChangeHandler"];
    [webView setUIDelegate:handler.get()];

#if HAVE(TOUCH_BAR)
    [webView _forceRequestCandidates];
#endif

    RetainPtr<NSWindow> window = adoptNS([[NSWindow alloc] initWithContentRect:[webView frame] styleMask:NSWindowStyleMaskBorderless backing:NSBackingStoreBuffered defer:NO]);
    [[window contentView] addSubview:webView.get()];
    [window makeKeyAndOrderFront:nil];

    NSURLRequest *request = [NSURLRequest requestWithURL:[[NSBundle mainBundle] URLForResource:@"PictureInPictureDelegate" withExtension:@"html" subdirectory:@"TestWebKitAPI.resources"]];

    receivedLoadedMessage = false;
    
    [webView loadRequest:request];
    TestWebKitAPI::Util::run(&receivedLoadedMessage);

    hasVideoInPictureInPictureValue = false;
    hasVideoInPictureInPictureCalled = false;

#if HAVE(TOUCH_BAR) && ENABLE(WEB_PLAYBACK_CONTROLS_MANAGER)
    while (![webView _canTogglePictureInPicture])
        [[NSRunLoop currentRunLoop] runUntilDate:[NSDate dateWithTimeIntervalSinceNow:0.05]];

    ASSERT_FALSE([webView _isPictureInPictureActive]);
    [webView _togglePictureInPicture];
#else
    NSEvent *event = [NSEvent mouseEventWithType:NSEventTypeLeftMouseDown location:NSMakePoint(5, 5) modifierFlags:0 timestamp:0 windowNumber:window.get().windowNumber context:0 eventNumber:0 clickCount:0 pressure:0];
    [webView mouseDown:event];
#endif

    TestWebKitAPI::Util::run(&hasVideoInPictureInPictureCalled);
    ASSERT_TRUE(hasVideoInPictureInPictureValue);

    // Wait for PIPAgent to launch, or it won't call -pipDidClose: callback.
    [[NSRunLoop currentRunLoop] runUntilDate:[NSDate dateWithTimeIntervalSinceNow:1]];

#if HAVE(TOUCH_BAR) && ENABLE(WEB_PLAYBACK_CONTROLS_MANAGER)
    ASSERT_TRUE([webView _isPictureInPictureActive]);
    ASSERT_TRUE([webView _canTogglePictureInPicture]);
#endif

    hasVideoInPictureInPictureCalled = false;

#if HAVE(TOUCH_BAR) && ENABLE(WEB_PLAYBACK_CONTROLS_MANAGER)
    [webView _togglePictureInPicture];
#else
    [webView mouseDown:event];
#endif

    TestWebKitAPI::Util::run(&hasVideoInPictureInPictureCalled);
    ASSERT_FALSE(hasVideoInPictureInPictureValue);
}

#if HAVE(TOUCH_BAR)

TEST(PictureInPicture, AudioCannotTogglePictureInPicture)
{
    RetainPtr<WKWebViewConfiguration> configuration = adoptNS([[WKWebViewConfiguration alloc] init]);
    RetainPtr<TestWKWebView> webView = adoptNS([[TestWKWebView alloc] initWithFrame:NSMakeRect(0, 0, 400, 54) configuration:configuration.get()]);
    [configuration preferences]._fullScreenEnabled = YES;
    [configuration preferences]._allowsPictureInPictureMediaPlayback = YES;
    RetainPtr<PictureInPictureUIDelegate> handler = adoptNS([[PictureInPictureUIDelegate alloc] init]);
    [[configuration userContentController] addScriptMessageHandler:handler.get() name:@"pictureInPictureChangeHandler"];
    [webView setUIDelegate:handler.get()];
    [webView _forceRequestCandidates];

    RetainPtr<NSWindow> window = adoptNS([[NSWindow alloc] initWithContentRect:[webView frame] styleMask:NSWindowStyleMaskBorderless backing:NSBackingStoreBuffered defer:NO]);
    [[window contentView] addSubview:webView.get()];
    [window makeKeyAndOrderFront:nil];

    [webView synchronouslyLoadTestPageNamed:@"audio-with-controls"];
    [webView evaluateJavaScript:@"play()" completionHandler:nil];

    [[NSRunLoop currentRunLoop] runUntilDate:[NSDate dateWithTimeIntervalSinceNow:1]];
    ASSERT_FALSE([webView _canTogglePictureInPicture]);
}

#endif // HAVE(TOUCH_BAR)

TEST(PictureInPicture, WKPageUIClient)
{
    WKRetainPtr<WKContextRef> context = adoptWK(WKContextCreateWithConfiguration(nullptr));
    WKRetainPtr<WKPageGroupRef> pageGroup = adoptWK(WKPageGroupCreateWithIdentifier(Util::toWK("PictureInPicture").get()));
    WKPreferencesRef preferences = WKPageGroupGetPreferences(pageGroup.get());
    WKPreferencesSetFullScreenEnabled(preferences, true);
    WKPreferencesSetAllowsPictureInPictureMediaPlayback(preferences, true);
    
    PlatformWebView webView(context.get(), pageGroup.get());
    
    WKPageUIClientV10 uiClient;
    memset(&uiClient, 0, sizeof(uiClient));
    uiClient.base.version = 10;
    uiClient.base.clientInfo = NULL;
    uiClient.hasVideoInPictureInPictureDidChange = hasVideoInPictureInPictureDidChange;
    WKPageSetPageUIClient(webView.page(), &uiClient.base);
    
    WKPageNavigationClientV0 loaderClient;
    memset(&loaderClient, 0 , sizeof(loaderClient));
    loaderClient.base.version = 0;
    loaderClient.didFinishNavigation = didFinishNavigation;
    WKPageSetPageNavigationClient(webView.page(), &loaderClient.base);
    
    RetainPtr<NSWindow> window = adoptNS([[NSWindow alloc] initWithContentRect:NSMakeRect(0, 0, 100, 100) styleMask:NSBorderlessWindowMask backing:NSBackingStoreBuffered defer:NO]);
    [window.get() makeKeyAndOrderFront:nil];
    [window.get().contentView addSubview:webView.platformView()];
    
    receivedLoadedMessage = false;
    WKRetainPtr<WKURLRef> url = adoptWK(Util::createURLForResource("PictureInPictureDelegate", "html"));
    WKPageLoadURL(webView.page(), url.get());
    TestWebKitAPI::Util::run(&receivedLoadedMessage);
    waitUntilOnLoadIsCompleted(webView.page());
    
    hasVideoInPictureInPictureValue = false;
    hasVideoInPictureInPictureCalled = false;
    webView.simulateButtonClick(kWKEventMouseButtonLeftButton, 5, 5, 0);
    TestWebKitAPI::Util::run(&hasVideoInPictureInPictureCalled);
    ASSERT_TRUE(hasVideoInPictureInPictureValue);
    
    sleep(1_s); // Wait for PIPAgent to launch, or it won't call -pipDidClose: callback.
    
    hasVideoInPictureInPictureCalled = false;
    webView.simulateButtonClick(kWKEventMouseButtonLeftButton, 5, 5, 0);
    TestWebKitAPI::Util::run(&hasVideoInPictureInPictureCalled);
    ASSERT_FALSE(hasVideoInPictureInPictureValue);
}

} // namespace TestWebKitAPI

#endif