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/*
* Copyright (C) 2019 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 WK_HAVE_C_SPI
#import "PlatformUtilities.h"
#import "TestWKWebView.h"
#import <WebKit/WKWebViewConfigurationPrivate.h>
#import <WebKit/WKWebViewPrivateForTesting.h>
static void waitUntilBufferingPolicyIsEqualTo(WKWebView* webView, const char* expected)
{
NSString* observed;
int tries = 0;
do {
observed = [webView stringByEvaluatingJavaScript:@"window.internals.elementBufferingPolicy(document.querySelector('video'))"];
if ([observed isEqualToString:@(expected)])
break;
TestWebKitAPI::Util::sleep(0.1);
} while (++tries <= 100);
EXPECT_WK_STREQ(expected, observed);
}
TEST(WebKit, MediaBufferingPolicy)
{
auto configuration = adoptNS([[WKWebViewConfiguration alloc] init]);
auto context = adoptWK(TestWebKitAPI::Util::createContextForInjectedBundleTest("InternalsInjectedBundleTest"));
configuration.get().processPool = (WKProcessPool *)context.get();
configuration.get()._mediaDataLoadsAutomatically = YES;
configuration.get().mediaTypesRequiringUserActionForPlayback = WKAudiovisualMediaTypeNone;
auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:NSMakeRect(0, 0, 300, 300) configuration:configuration.get() addToWindow:YES]);
__block bool isPlaying = false;
[webView performAfterReceivingMessage:@"playing" action:^() { isPlaying = true; }];
[webView synchronouslyLoadTestPageNamed:@"video-with-audio"];
TestWebKitAPI::Util::run(&isPlaying);
waitUntilBufferingPolicyIsEqualTo(webView.get(), "Default");
[webView stringByEvaluatingJavaScript:@"document.querySelector('video').pause()"];
// Suspending the process also forces a memory warning, which should purge whatever possible ASAP.
[webView _processWillSuspendImminentlyForTesting];
waitUntilBufferingPolicyIsEqualTo(webView.get(), "PurgeResources");
// And should switch back to default when buffering is allowed.
[webView _processDidResumeForTesting];
waitUntilBufferingPolicyIsEqualTo(webView.get(), "Default");
// All resources should be marked as purgeable when the document is hidden.
#if PLATFORM(MAC)
[webView.get().window setIsVisible:NO];
#else
webView.get().window.hidden = YES;
#endif
waitUntilBufferingPolicyIsEqualTo(webView.get(), "MakeResourcesPurgeable");
#if PLATFORM(MAC)
[webView.get().window setIsVisible:YES];
#else
webView.get().window.hidden = NO;
#endif
// Policy should go back to default when playback starts.
isPlaying = false;
[webView stringByEvaluatingJavaScript:@"go()"];
TestWebKitAPI::Util::run(&isPlaying);
waitUntilBufferingPolicyIsEqualTo(webView.get(), "Default");
}
#endif // WK_HAVE_C_SPI