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RestoreScrollPosition.mm
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RestoreScrollPosition.mm
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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.
*/
#import "config.h"
#import "PlatformUtilities.h"
#import "Test.h"
#import "TestWKWebView.h"
#import <WebKit/WKProcessPoolPrivate.h>
#import <WebKit/WKWebViewPrivate.h>
#import <WebKit/_WKProcessPoolConfiguration.h>
namespace TestWebKitAPI {
#if PLATFORM(IOS_FAMILY)
TEST(RestoreScrollPositionTests, RestoreScrollPositionWithLargeContentInset)
{
auto topInset = 1165;
auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 375, 1024)]);
[webView setOverrideSafeAreaInset:UIEdgeInsetsMake(141, 0, 0, 0)];
[webView synchronouslyLoadTestPageNamed:@"simple-tall"];
auto insets = UIEdgeInsetsMake(topInset, 0, 0, 0);
[webView scrollView].contentInset = insets;
[webView _setObscuredInsets:UIEdgeInsetsMake(141, 0, 0, 0)];
[webView scrollView].contentOffset = CGPointMake(0, -topInset);
[webView waitForNextPresentationUpdate];
[webView _overrideLayoutParametersWithMinimumLayoutSize:CGSizeMake(375, 727) maximumUnobscuredSizeOverride:CGSizeMake(375, 727)];
[webView scrollView].contentInset = UIEdgeInsetsMake(1024, 0, 0, 0);
[webView waitForNextPresentationUpdate];
CGPoint contentOffsetAfterScrolling = [webView scrollView].contentOffset;
EXPECT_EQ(-topInset, contentOffsetAfterScrolling.y);
}
TEST(RestoreScrollPositionTests, RestoreScrollPositionDuringResize)
{
auto processPoolConfiguration = adoptNS([[_WKProcessPoolConfiguration alloc] init]);
processPoolConfiguration.get().pageCacheEnabled = NO;
auto processPool = adoptNS([[WKProcessPool alloc] _initWithConfiguration:processPoolConfiguration.get()]);
auto webViewConfiguration = adoptNS([[WKWebViewConfiguration alloc] init]);
[webViewConfiguration setProcessPool:processPool.get()];
auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 500) configuration:webViewConfiguration.get()]);
[webView synchronouslyLoadTestPageNamed:@"simple-tall"];
[webView stringByEvaluatingJavaScript:@"scrollTo(0, 1000)"];
[webView waitForNextPresentationUpdate];
UIEdgeInsets contentInset = [[webView scrollView] adjustedContentInset];
// If this fires you're probably running using the wrong type of simulated device.
ASSERT_UNUSED(contentInset, !contentInset.top);
CGPoint contentOffsetAfterScrolling = [webView scrollView].contentOffset;
EXPECT_EQ(0, contentOffsetAfterScrolling.x);
EXPECT_EQ(1000, contentOffsetAfterScrolling.y);
[webView synchronouslyLoadTestPageNamed:@"simple"];
[webView waitForNextPresentationUpdate];
CGPoint contentOffsetInNewPage = [webView scrollView].contentOffset;
EXPECT_EQ(0, contentOffsetInNewPage.x);
EXPECT_EQ(0, contentOffsetInNewPage.y);
[webView _beginAnimatedResizeWithUpdates:^{
[webView setFrame:CGRectMake(0, 0, [webView frame].size.width + 100, 500)];
}];
[webView synchronouslyGoBack];
TestWebKitAPI::Util::runFor(0.5_s);
[webView _endAnimatedResize];
// Should restore the scroll position.
int timeout = 0;
do {
if (timeout)
TestWebKitAPI::Util::runFor(0.1_s);
} while ([webView scrollView].contentOffset.y != 1000 && ++timeout <= 30);
CGPoint contentOffsetAfterBack = [webView scrollView].contentOffset;
EXPECT_EQ(0, contentOffsetAfterBack.x);
EXPECT_EQ(1000, contentOffsetAfterBack.y);
}
TEST(RestoreScrollPositionTests, RestoreScrollPositionAfterBack)
{
auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 390, 664)]);
[webView synchronouslyLoadTestPageNamed:@"simple-tall"];
[webView _setViewScale:1.15]; // Simulate MobileSafari setting view scale on every didCommitNavigation.
[webView waitForNextPresentationUpdate];
[[webView scrollView] setContentOffset:CGPointMake(0, 1000)];
[webView waitForNextPresentationUpdate];
[webView synchronouslyLoadTestPageNamed:@"simple"];
[webView _setViewScale:1.15];
[webView waitForNextPresentationUpdate];
CGPoint contentOffsetInNewPage = [webView scrollView].contentOffset;
EXPECT_EQ(0, contentOffsetInNewPage.x);
EXPECT_EQ(0, contentOffsetInNewPage.y);
[webView synchronouslyGoBack];
[webView _setViewScale:1.15];
[webView waitForNextPresentationUpdate];
CGPoint contentOffsetAfterBack = [webView scrollView].contentOffset;
EXPECT_EQ(0, contentOffsetAfterBack.x);
EXPECT_TRUE(WTF::areEssentiallyEqual<float>(contentOffsetAfterBack.y, 1000.0f, 1.0f)); // It can be 999.5 but that's OK.
}
#endif
}