blob: 7bbde5fe3e79bbe7e653c3c766f869e56b3ae3fd [file] [log] [blame]
/*
* Copyright (C) 2018 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)
#import "PlatformUtilities.h"
#import "TestNavigationDelegate.h"
#import "TestWKWebView.h"
#import "UIKitSPI.h"
#import <WebKit/WKWebViewPrivate.h>
#import <wtf/Vector.h>
@interface ScrollViewDelegate : NSObject<UIScrollViewDelegate> {
@public Vector<CGPoint> _contentOffsetHistory;
}
@end
@implementation ScrollViewDelegate
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
auto contentOffset = scrollView.contentOffset;
if (_contentOffsetHistory.isEmpty() || !CGPointEqualToPoint(_contentOffsetHistory.last(), contentOffset))
_contentOffsetHistory.append(contentOffset);
}
@end
@interface AsyncPolicyDelegateForInsetTest : NSObject<WKNavigationDelegate> {
@public bool _navigationComplete;
}
@property (nonatomic, copy) void (^webContentProcessDidTerminate)(WKWebView *);
@end
@implementation AsyncPolicyDelegateForInsetTest
- (void)webView:(WKWebView *)webView didFinishNavigation:(null_unspecified WKNavigation *)navigation
{
_navigationComplete = true;
}
- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler
{
int64_t deferredWaitTime = 100 * NSEC_PER_MSEC;
dispatch_time_t when = dispatch_time(DISPATCH_TIME_NOW, deferredWaitTime);
dispatch_after(when, dispatch_get_main_queue(), ^{
decisionHandler(WKNavigationActionPolicyAllow);
});
}
- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler
{
int64_t deferredWaitTime = 100 * NSEC_PER_MSEC;
dispatch_time_t when = dispatch_time(DISPATCH_TIME_NOW, deferredWaitTime);
dispatch_after(when, dispatch_get_main_queue(), ^{
decisionHandler(WKNavigationResponsePolicyAllow);
});
}
- (void)webViewWebContentProcessDidTerminate:(WKWebView *)webView
{
if (_webContentProcessDidTerminate)
_webContentProcessDidTerminate(webView);
}
@end
namespace TestWebKitAPI {
static const CGFloat viewHeight = 500;
static NSString *veryTallDocumentMarkup = @"<meta name='viewport' content='width=device-width, initial-scale=1'><body style='width: 100%; height: 5000px'>";
static void waitUntilInnerHeightIs(TestWKWebView *webView, CGFloat expectedValue)
{
int tries = 0;
do {
Util::sleep(0.1);
} while ([[webView objectByEvaluatingJavaScript:@"innerHeight"] floatValue] != expectedValue && ++tries <= 100);
}
TEST(ScrollViewInsetTests, InnerHeightWithLargeTopContentInset)
{
auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 320, viewHeight)]);
[webView scrollView].contentInset = UIEdgeInsetsMake(400, 0, 0, 0);
[webView synchronouslyLoadHTMLString:veryTallDocumentMarkup];
[webView stringByEvaluatingJavaScript:@"scrollTo(0, 10)"];
waitUntilInnerHeightIs(webView.get(), viewHeight);
EXPECT_EQ(viewHeight, [[webView objectByEvaluatingJavaScript:@"innerHeight"] floatValue]);
EXPECT_EQ(10, [[webView objectByEvaluatingJavaScript:@"pageYOffset"] floatValue]);
[webView stringByEvaluatingJavaScript:@"scrollBy(0, -10)"];
waitUntilInnerHeightIs(webView.get(), viewHeight);
EXPECT_EQ(viewHeight, [[webView objectByEvaluatingJavaScript:@"innerHeight"] floatValue]);
EXPECT_EQ(0, [[webView objectByEvaluatingJavaScript:@"pageYOffset"] floatValue]);
[webView stringByEvaluatingJavaScript:@"scrollBy(0, 20)"];
waitUntilInnerHeightIs(webView.get(), viewHeight);
EXPECT_EQ(viewHeight, [[webView objectByEvaluatingJavaScript:@"innerHeight"] floatValue]);
EXPECT_EQ(20, [[webView objectByEvaluatingJavaScript:@"pageYOffset"] floatValue]);
}
TEST(ScrollViewInsetTests, InnerHeightWithLargeBottomContentInset)
{
auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 320, viewHeight)]);
[webView scrollView].contentInset = UIEdgeInsetsMake(0, 0, 400, 0);
[webView synchronouslyLoadHTMLString:veryTallDocumentMarkup];
[webView stringByEvaluatingJavaScript:@"scrollTo(0, 10)"];
[webView waitForNextPresentationUpdate];
EXPECT_EQ(viewHeight, [[webView objectByEvaluatingJavaScript:@"innerHeight"] floatValue]);
EXPECT_EQ(10, [[webView objectByEvaluatingJavaScript:@"pageYOffset"] floatValue]);
[webView stringByEvaluatingJavaScript:@"scrollBy(0, -10)"];
[webView waitForNextPresentationUpdate];
EXPECT_EQ(viewHeight, [[webView objectByEvaluatingJavaScript:@"innerHeight"] floatValue]);
EXPECT_EQ(0, [[webView objectByEvaluatingJavaScript:@"pageYOffset"] floatValue]);
[webView stringByEvaluatingJavaScript:@"scrollBy(0, 20)"];
[webView waitForNextPresentationUpdate];
EXPECT_EQ(viewHeight, [[webView objectByEvaluatingJavaScript:@"innerHeight"] floatValue]);
EXPECT_EQ(20, [[webView objectByEvaluatingJavaScript:@"pageYOffset"] floatValue]);
}
TEST(ScrollViewInsetTests, RestoreInitialContentOffsetAfterNavigation)
{
auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 320, viewHeight)]);
[webView scrollView].contentInset = UIEdgeInsetsMake(400, 0, 0, 0);
[webView synchronouslyLoadHTMLString:veryTallDocumentMarkup];
[webView stringByEvaluatingJavaScript:@"scrollTo(0, 1000)"];
[webView waitForNextPresentationUpdate];
CGPoint contentOffsetAfterScrolling = [webView scrollView].contentOffset;
EXPECT_EQ(0, contentOffsetAfterScrolling.x);
EXPECT_EQ(1000, contentOffsetAfterScrolling.y);
[webView synchronouslyLoadHTMLString:@"<body bgcolor='red'>"];
[webView waitForNextPresentationUpdate];
CGPoint contentOffsetAfterNavigation = [webView scrollView].contentOffset;
EXPECT_EQ(0, contentOffsetAfterNavigation.x);
EXPECT_EQ(-400, contentOffsetAfterNavigation.y);
}
TEST(ScrollViewInsetTests, RestoreInitialContentOffsetAfterCrash)
{
auto delegate = adoptNS([[TestNavigationDelegate alloc] init]);
auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 320, viewHeight)]);
[webView scrollView].contentInset = UIEdgeInsetsMake(400, 0, 0, 0);
[webView synchronouslyLoadHTMLString:veryTallDocumentMarkup];
[webView setNavigationDelegate:delegate.get()];
CGPoint initialContentOffset = [webView scrollView].contentOffset;
__block CGPoint contentOffsetAfterCrash = CGPointZero;
__block bool done = false;
[delegate setWebContentProcessDidTerminate:^(WKWebView *webView) {
contentOffsetAfterCrash = webView.scrollView.contentOffset;
done = true;
}];
[webView _killWebContentProcessAndResetState];
Util::run(&done);
EXPECT_EQ(initialContentOffset.x, contentOffsetAfterCrash.x);
EXPECT_EQ(initialContentOffset.y, contentOffsetAfterCrash.y);
EXPECT_EQ(0, initialContentOffset.x);
EXPECT_EQ(-400, initialContentOffset.y);
}
TEST(ScrollViewInsetTests, RestoreInitialContentOffsetAfterCrashWithAsyncPolicyDelegates)
{
auto delegate = adoptNS([[AsyncPolicyDelegateForInsetTest alloc] init]);
auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 320, viewHeight)]);
[webView scrollView].contentInset = UIEdgeInsetsMake(400, 0, 0, 0);
[webView setNavigationDelegate:delegate.get()];
delegate->_navigationComplete = false;
NSURL *testResourceURL = [[[NSBundle mainBundle] bundleURL] URLByAppendingPathComponent:@"TestWebKitAPI.resources"];
[webView loadHTMLString:veryTallDocumentMarkup baseURL:testResourceURL];
Util::run(&delegate->_navigationComplete);
__block bool presentationUpdateHappened = false;
[webView _doAfterNextPresentationUpdate:^{
presentationUpdateHappened = true;
}];
TestWebKitAPI::Util::run(&presentationUpdateHappened);
CGPoint initialContentOffset = [webView scrollView].contentOffset;
__block CGPoint contentOffsetAfterCrash = CGPointZero;
__block bool done = false;
[delegate setWebContentProcessDidTerminate:^(WKWebView *webView) {
contentOffsetAfterCrash = webView.scrollView.contentOffset;
done = true;
}];
[webView _killWebContentProcessAndResetState];
Util::run(&done);
EXPECT_EQ(initialContentOffset.x, contentOffsetAfterCrash.x);
EXPECT_EQ(initialContentOffset.y, contentOffsetAfterCrash.y);
EXPECT_EQ(0, initialContentOffset.x);
EXPECT_EQ(-400, initialContentOffset.y);
}
TEST(ScrollViewInsetTests, ChangeInsetWithoutAutomaticAdjustmentWhileWebProcessIsUnresponsive)
{
constexpr CGFloat initialTopInset = 100;
constexpr CGFloat updatedTopInset = 70;
auto scrollViewDelegate = adoptNS([[ScrollViewDelegate alloc] init]);
auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 800, 600)]);
[webView scrollView].scrollEnabled = NO;
[webView scrollView].delegate = scrollViewDelegate.get();
[webView _setObscuredInsets:UIEdgeInsetsMake(initialTopInset, 0, 0, 0)];
[webView scrollView].contentInset = UIEdgeInsetsMake(initialTopInset, 0, 0, 0);
[webView synchronouslyLoadTestPageNamed:@"overflow-hidden"];
UIWindow *window = [webView window];
[webView evaluateJavaScript:@"setBodyHeight(2000); hangFor(500)" completionHandler:nil];
[webView removeFromSuperview];
__block bool done = false;
dispatch_async(dispatch_get_main_queue(), ^{
[window addSubview:webView.get()];
[webView _setObscuredInsets:UIEdgeInsetsMake(updatedTopInset, 0, 0, 0)];
[[webView scrollView] _setAutomaticContentOffsetAdjustmentEnabled:NO];
[webView scrollView].contentInset = UIEdgeInsetsMake(updatedTopInset, 0, 0, 0);
[[webView scrollView] _setAutomaticContentOffsetAdjustmentEnabled:YES];
done = true;
});
TestWebKitAPI::Util::run(&done);
[webView waitForNextPresentationUpdate];
EXPECT_EQ(2U, scrollViewDelegate->_contentOffsetHistory.size());
EXPECT_EQ(-100, scrollViewDelegate->_contentOffsetHistory.first().y);
EXPECT_EQ(-70, scrollViewDelegate->_contentOffsetHistory.last().y);
EXPECT_EQ(0, [[webView stringByEvaluatingJavaScript:@"document.scrollingElement.scrollTop"] intValue]);
}
} // namespace TestWebKitAPI
#endif // PLATFORM(IOS_FAMILY)