/*
* Copyright (C) 2014 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 "WKWebViewInternal.h"
#if WK_API_ENABLED
#import "APIFormClient.h"
#import "CompletionHandlerCallChecker.h"
#import "FindClient.h"
#import "LegacySessionStateCoding.h"
#import "NavigationState.h"
#import "RemoteLayerTreeTransaction.h"
#import "RemoteObjectRegistry.h"
#import "RemoteObjectRegistryMessages.h"
#import "UIDelegate.h"
#import "ViewGestureController.h"
#import "ViewSnapshotStore.h"
#import "WKBackForwardListInternal.h"
#import "WKBackForwardListItemInternal.h"
#import "WKBrowsingContextHandleInternal.h"
#import "WKErrorInternal.h"
#import "WKHistoryDelegatePrivate.h"
#import "WKNSData.h"
#import "WKNSURLExtras.h"
#import "WKNavigationDelegate.h"
#import "WKNavigationInternal.h"
#import "WKPreferencesInternal.h"
#import "WKProcessPoolInternal.h"
#import "WKUIDelegate.h"
#import "WKUIDelegatePrivate.h"
#import "WKUserContentControllerInternal.h"
#import "WKWebViewConfigurationInternal.h"
#import "WKWebViewContentProvider.h"
#import "WebBackForwardList.h"
#import "WebCertificateInfo.h"
#import "WebContext.h"
#import "WebFormSubmissionListenerProxy.h"
#import "WebKitSystemInterface.h"
#import "WebPageGroup.h"
#import "WebPageProxy.h"
#import "WebPreferencesKeys.h"
#import "WebProcessProxy.h"
#import "WebSerializedScriptValue.h"
#import "_WKFindDelegate.h"
#import "_WKFormDelegate.h"
#import "_WKRemoteObjectRegistryInternal.h"
#import "_WKSessionStateInternal.h"
#import "_WKVisitedLinkProviderInternal.h"
#import "_WKWebsiteDataStoreInternal.h"
#import <JavaScriptCore/JSContext.h>
#import <JavaScriptCore/JSValue.h>
#import <wtf/HashMap.h>
#import <wtf/NeverDestroyed.h>
#import <wtf/RetainPtr.h>
#if PLATFORM(IOS)
#import "_WKFrameHandleInternal.h"
#import "_WKWebViewPrintFormatter.h"
#import "PrintInfo.h"
#import "ProcessThrottler.h"
#import "RemoteLayerTreeDrawingAreaProxy.h"
#import "WKPDFView.h"
#import "WKScrollView.h"
#import "WKWebViewContentProviderRegistry.h"
#import "WebPageMessages.h"
#import <CoreGraphics/CGFloat.h>
#import <CoreGraphics/CGPDFDocumentPrivate.h>
#import <UIKit/UIApplication.h>
#import <UIKit/UIDevice_Private.h>
#import <UIKit/UIPeripheralHost_Private.h>
#import <UIKit/UIWindow_Private.h>
#import <QuartzCore/CARenderServer.h>
#import <QuartzCore/QuartzCorePrivate.h>
#import <WebCore/InspectorOverlay.h>
@interface UIScrollView (UIScrollViewInternal)
- (void)_adjustForAutomaticKeyboardInfo:(NSDictionary*)info animated:(BOOL)animated lastAdjustment:(CGFloat*)lastAdjustment;
- (BOOL)_isScrollingToTop;
@end
@interface UIPeripheralHost(UIKitInternal)
- (CGFloat)getVerticalOverlapForView:(UIView *)view usingKeyboardInfo:(NSDictionary *)info;
@end
@interface UIView (UIViewInternal)
- (UIViewController *)_viewControllerForAncestor;
@end
@interface UIWindow (UIWindowInternal)
- (BOOL)_isHostedInAnotherProcess;
@end
@interface UIViewController (UIViewControllerInternal)
- (UIViewController *)_rootAncestorViewController;
- (UIViewController *)_viewControllerForSupportedInterfaceOrientations;
@end
enum class DynamicViewportUpdateMode {
NotResizing,
ResizingWithAnimation,
ResizingWithDocumentHidden,
};
#endif
#if PLATFORM(MAC)
#import "WKViewInternal.h"
#import <WebCore/ColorMac.h>
#endif
static HashMap<WebKit::WebPageProxy*, WKWebView *>& pageToViewMap()
{
static NeverDestroyed<HashMap<WebKit::WebPageProxy*, WKWebView *>> map;
return map;
}
WKWebView* fromWebPageProxy(WebKit::WebPageProxy& page)
{
return pageToViewMap().get(&page);
}
@implementation WKWebView {
std::unique_ptr<WebKit::NavigationState> _navigationState;
std::unique_ptr<WebKit::UIDelegate> _uiDelegate;
RetainPtr<_WKRemoteObjectRegistry> _remoteObjectRegistry;
_WKRenderingProgressEvents _observedRenderingProgressEvents;
WebKit::WeakObjCPtr<id <_WKFormDelegate>> _formDelegate;
#if PLATFORM(IOS)
RetainPtr<WKScrollView> _scrollView;
RetainPtr<WKContentView> _contentView;
BOOL _overridesMinimumLayoutSize;
CGSize _minimumLayoutSizeOverride;
BOOL _overridesMinimumLayoutSizeForMinimalUI;
CGSize _minimumLayoutSizeOverrideForMinimalUI;
BOOL _overridesMaximumUnobscuredSize;
CGSize _maximumUnobscuredSizeOverride;
BOOL _usesMinimalUI;
BOOL _needsToNotifyDelegateAboutMinimalUI;
CGRect _inputViewBounds;
CGFloat _viewportMetaTagWidth;
UIEdgeInsets _obscuredInsets;
BOOL _haveSetObscuredInsets;
BOOL _isChangingObscuredInsetsInteractively;
UIInterfaceOrientation _interfaceOrientationOverride;
BOOL _overridesInterfaceOrientation;
BOOL _hasCommittedLoadForMainFrame;
BOOL _needsResetViewStateAfterCommitLoadForMainFrame;
uint64_t _firstPaintAfterCommitLoadTransactionID;
DynamicViewportUpdateMode _dynamicViewportUpdateMode;
CATransform3D _resizeAnimationTransformAdjustments;
uint64_t _resizeAnimationTransformTransactionID;
RetainPtr<UIView> _resizeAnimationView;
CGFloat _lastAdjustmentForScroller;
BOOL _needsToRestoreExposedRect;
WebCore::FloatRect _exposedRectToRestore;
BOOL _needsToRestoreUnobscuredCenter;
WebCore::FloatPoint _unobscuredCenterToRestore;
uint64_t _firstTransactionIDAfterPageRestore;
double _scaleToRestore;
std::unique_ptr<WebKit::ViewGestureController> _gestureController;
BOOL _allowsBackForwardNavigationGestures;
RetainPtr<UIView <WKWebViewContentProvider>> _customContentView;
RetainPtr<UIView> _customContentFixedOverlayView;
WebCore::Color _scrollViewBackgroundColor;
BOOL _delayUpdateVisibleContentRects;
BOOL _hadDelayedUpdateVisibleContentRects;
BOOL _pageIsPrintingToPDF;
RetainPtr<CGPDFDocumentRef> _printedDocument;
#endif
#if PLATFORM(MAC)
RetainPtr<WKView> _wkView;
#endif
}
- (instancetype)initWithFrame:(CGRect)frame
{
return [self initWithFrame:frame configuration:adoptNS([[WKWebViewConfiguration alloc] init]).get()];
}
#if PLATFORM(IOS)
static int32_t deviceOrientationForUIInterfaceOrientation(UIInterfaceOrientation orientation)
{
switch (orientation) {
case UIInterfaceOrientationUnknown:
case UIInterfaceOrientationPortrait:
return 0;
case UIInterfaceOrientationPortraitUpsideDown:
return 180;
case UIInterfaceOrientationLandscapeLeft:
return -90;
case UIInterfaceOrientationLandscapeRight:
return 90;
}
}
static int32_t deviceOrientation()
{
return deviceOrientationForUIInterfaceOrientation([[UIApplication sharedApplication] statusBarOrientation]);
}
#endif
- (instancetype)initWithFrame:(CGRect)frame configuration:(WKWebViewConfiguration *)configuration
{
if (!(self = [super initWithFrame:frame]))
return nil;
_configuration = adoptNS([configuration copy]);
if (WKWebView *relatedWebView = [_configuration _relatedWebView]) {
WKProcessPool *processPool = [_configuration processPool];
WKProcessPool *relatedWebViewProcessPool = [relatedWebView->_configuration processPool];
if (processPool && processPool != relatedWebViewProcessPool)
[NSException raise:NSInvalidArgumentException format:@"Related web view %@ has process pool %@ but configuration specifies a different process pool %@", relatedWebView, relatedWebViewProcessPool, configuration.processPool];
[_configuration setProcessPool:relatedWebViewProcessPool];
}
[_configuration _validate];
CGRect bounds = self.bounds;
WebKit::WebContext& context = *[_configuration processPool]->_context;
WebKit::WebPageConfiguration webPageConfiguration;
webPageConfiguration.preferences = [_configuration preferences]->_preferences.get();
if (WKWebView *relatedWebView = [_configuration _relatedWebView])
webPageConfiguration.relatedPage = relatedWebView->_page.get();
webPageConfiguration.userContentController = [_configuration userContentController]->_userContentControllerProxy.get();
webPageConfiguration.visitedLinkProvider = [_configuration _visitedLinkProvider]->_visitedLinkProvider.get();
webPageConfiguration.session = [_configuration _websiteDataStore]->_session.get();
RefPtr<WebKit::WebPageGroup> pageGroup;
NSString *groupIdentifier = configuration._groupIdentifier;
if (groupIdentifier.length) {
pageGroup = WebKit::WebPageGroup::create(configuration._groupIdentifier);
webPageConfiguration.pageGroup = pageGroup.get();
}
webPageConfiguration.preferenceValues.set(WebKit::WebPreferencesKey::suppressesIncrementalRenderingKey(), WebKit::WebPreferencesStore::Value(!![_configuration suppressesIncrementalRendering]));
#if PLATFORM(IOS)
webPageConfiguration.preferenceValues.set(WebKit::WebPreferencesKey::mediaPlaybackAllowsInlineKey(), WebKit::WebPreferencesStore::Value(!![_configuration allowsInlineMediaPlayback]));
webPageConfiguration.preferenceValues.set(WebKit::WebPreferencesKey::mediaPlaybackRequiresUserGestureKey(), WebKit::WebPreferencesStore::Value(!![_configuration mediaPlaybackRequiresUserAction]));
webPageConfiguration.preferenceValues.set(WebKit::WebPreferencesKey::mediaPlaybackAllowsAirPlayKey(), WebKit::WebPreferencesStore::Value(!![_configuration mediaPlaybackAllowsAirPlay]));
#endif
#if PLATFORM(IOS)
_scrollView = adoptNS([[WKScrollView alloc] initWithFrame:bounds]);
[_scrollView setInternalDelegate:self];
[_scrollView setBouncesZoom:YES];
[self addSubview:_scrollView.get()];
_contentView = adoptNS([[WKContentView alloc] initWithFrame:bounds context:context configuration:WTF::move(webPageConfiguration) webView:self]);
_page = [_contentView page];
_page->setApplicationNameForUserAgent([@"Mobile/" stringByAppendingString:[UIDevice currentDevice].buildVersion]);
_page->setDeviceOrientation(deviceOrientation());
[_contentView layer].anchorPoint = CGPointZero;
[_contentView setFrame:bounds];
[_scrollView addSubview:_contentView.get()];
[_scrollView addSubview:[_contentView unscaledView]];
[self _updateScrollViewBackground];
_viewportMetaTagWidth = -1;
[self _frameOrBoundsChanged];
NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
[center addObserver:self selector:@selector(_keyboardWillChangeFrame:) name:UIKeyboardWillChangeFrameNotification object:nil];
[center addObserver:self selector:@selector(_keyboardDidChangeFrame:) name:UIKeyboardDidChangeFrameNotification object:nil];
[center addObserver:self selector:@selector(_keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
[center addObserver:self selector:@selector(_keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
[center addObserver:self selector:@selector(_windowDidRotate:) name:UIWindowDidRotateNotification object:nil];
[center addObserver:self selector:@selector(_contentSizeCategoryDidChange:) name:UIContentSizeCategoryDidChangeNotification object:nil];
_page->contentSizeCategoryDidChange([self _contentSizeCategory]);
[[_configuration _contentProviderRegistry] addPage:*_page];
#endif
#if PLATFORM(MAC)
_wkView = adoptNS([[WKView alloc] initWithFrame:bounds context:context configuration:WTF::move(webPageConfiguration) webView:self]);
[self addSubview:_wkView.get()];
_page = WebKit::toImpl([_wkView pageRef]);
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 101000
[_wkView _setAutomaticallyAdjustsContentInsets:YES];
#endif
#endif
_page->setBackgroundExtendsBeyondPage(true);
_navigationState = std::make_unique<WebKit::NavigationState>(self);
_page->setPolicyClient(_navigationState->createPolicyClient());
_page->setLoaderClient(_navigationState->createLoaderClient());
_uiDelegate = std::make_unique<WebKit::UIDelegate>(self);
_page->setUIClient(_uiDelegate->createUIClient());
_page->setFindClient(std::make_unique<WebKit::FindClient>(self));
pageToViewMap().add(_page.get(), self);
return self;
}
- (instancetype)initWithCoder:(NSCoder *)coder
{
[self release];
return nil;
}
- (void)dealloc
{
if (_remoteObjectRegistry)
_page->process().context().removeMessageReceiver(Messages::RemoteObjectRegistry::messageReceiverName(), _page->pageID());
_page->close();
[_remoteObjectRegistry _invalidate];
#if PLATFORM(IOS)
[[_configuration _contentProviderRegistry] removePage:*_page];
[[NSNotificationCenter defaultCenter] removeObserver:self];
#endif
pageToViewMap().remove(_page.get());
[super dealloc];
}
- (WKWebViewConfiguration *)configuration
{
return [[_configuration copy] autorelease];
}
- (WKBackForwardList *)backForwardList
{
return wrapper(_page->backForwardList());
}
- (id <WKNavigationDelegate>)navigationDelegate
{
return _navigationState->navigationDelegate().autorelease();
}
- (void)setNavigationDelegate:(id <WKNavigationDelegate>)navigationDelegate
{
_navigationState->setNavigationDelegate(navigationDelegate);
}
- (id <WKUIDelegate>)UIDelegate
{
return _uiDelegate->delegate().autorelease();
}
- (void)setUIDelegate:(id<WKUIDelegate>)UIDelegate
{
_uiDelegate->setDelegate(UIDelegate);
}
- (WKNavigation *)loadRequest:(NSURLRequest *)request
{
uint64_t navigationID = _page->loadRequest(request);
auto navigation = _navigationState->createLoadRequestNavigation(navigationID, request);
return navigation.autorelease();
}
- (WKNavigation *)loadHTMLString:(NSString *)string baseURL:(NSURL *)baseURL
{
uint64_t navigationID = _page->loadHTMLString(string, baseURL.absoluteString);
if (!navigationID)
return nil;
auto navigation = _navigationState->createLoadDataNavigation(navigationID);
return navigation.autorelease();
}
- (WKNavigation *)goToBackForwardListItem:(WKBackForwardListItem *)item
{
uint64_t navigationID = _page->goToBackForwardItem(&item._item);
auto navigation = _navigationState->createBackForwardNavigation(navigationID, item._item);
return navigation.autorelease();
}
- (NSString *)title
{
return _page->pageLoadState().title();
}
- (NSURL *)URL
{
return [NSURL _web_URLWithWTFString:_page->pageLoadState().activeURL()];
}
- (BOOL)isLoading
{
return _page->pageLoadState().isLoading();
}
- (double)estimatedProgress
{
return _page->pageLoadState().estimatedProgress();
}
- (BOOL)hasOnlySecureContent
{
return _page->pageLoadState().hasOnlySecureContent();
}
- (BOOL)canGoBack
{
return _page->pageLoadState().canGoBack();
}
- (BOOL)canGoForward
{
return _page->pageLoadState().canGoForward();
}
- (WKNavigation *)goBack
{
uint64_t navigationID = _page->goBack();
if (!navigationID)
return nil;
ASSERT(_page->backForwardList().currentItem());
auto navigation = _navigationState->createBackForwardNavigation(navigationID, *_page->backForwardList().currentItem());
return navigation.autorelease();
}
- (WKNavigation *)goForward
{
uint64_t navigationID = _page->goForward();
if (!navigationID)
return nil;
ASSERT(_page->backForwardList().currentItem());
auto navigation = _navigationState->createBackForwardNavigation(navigationID, *_page->backForwardList().currentItem());
return navigation.autorelease();
}
- (WKNavigation *)reload
{
uint64_t navigationID = _page->reload(false);
if (!navigationID)
return nil;
auto navigation = _navigationState->createReloadNavigation(navigationID);
return navigation.autorelease();
}
- (WKNavigation *)reloadFromOrigin
{
uint64_t navigationID = _page->reload(true);
if (!navigationID)
return nil;
auto navigation = _navigationState->createReloadNavigation(navigationID);
return navigation.autorelease();
}
- (void)stopLoading
{
_page->stopLoading();
}
static WKErrorCode callbackErrorCode(WebKit::CallbackBase::Error error)
{
switch (error) {
case WebKit::CallbackBase::Error::None:
ASSERT_NOT_REACHED();
return WKErrorUnknown;
case WebKit::CallbackBase::Error::Unknown:
return WKErrorUnknown;
case WebKit::CallbackBase::Error::ProcessExited:
return WKErrorWebContentProcessTerminated;
case WebKit::CallbackBase::Error::OwnerWasInvalidated:
return WKErrorWebViewInvalidated;
}
}
- (void)evaluateJavaScript:(NSString *)javaScriptString completionHandler:(void (^)(id, NSError *))completionHandler
{
auto handler = adoptNS([completionHandler copy]);
_page->runJavaScriptInMainFrame(javaScriptString, [handler](WebKit::WebSerializedScriptValue* serializedScriptValue, WebKit::ScriptValueCallback::Error errorCode) {
if (!handler)
return;
auto completionHandler = (void (^)(id, NSError *))handler.get();
if (errorCode != WebKit::ScriptValueCallback::Error::None) {
auto error = createNSError(callbackErrorCode(errorCode));
if (errorCode == WebKit::ScriptValueCallback::Error::OwnerWasInvalidated) {
// The OwnerWasInvalidated callback is synchronous. We don't want to call the block from within it
// because that can trigger re-entrancy bugs in WebKit.
// FIXME: It would be even better if GenericCallback did this for us.
dispatch_async(dispatch_get_main_queue(), [completionHandler, error] {
completionHandler(nil, error.get());
});
return;
}
completionHandler(nil, error.get());
return;
}
if (!serializedScriptValue) {
completionHandler(nil, createNSError(WKErrorJavaScriptExceptionOccurred).get());
return;
}
auto context = adoptNS([[JSContext alloc] init]);
JSValueRef valueRef = serializedScriptValue->deserialize([context JSGlobalContextRef], 0);
JSValue *value = [JSValue valueWithJSValueRef:valueRef inContext:context.get()];
completionHandler([value toObject], nil);
});
}
#pragma mark iOS-specific methods
#if PLATFORM(IOS)
- (void)setFrame:(CGRect)frame
{
CGRect oldFrame = self.frame;
[super setFrame:frame];
if (!CGSizeEqualToSize(oldFrame.size, frame.size))
[self _frameOrBoundsChanged];
}
- (void)setBounds:(CGRect)bounds
{
CGRect oldBounds = self.bounds;
[super setBounds:bounds];
[_customContentFixedOverlayView setFrame:self.bounds];
if (!CGSizeEqualToSize(oldBounds.size, bounds.size))
[self _frameOrBoundsChanged];
}
- (UIScrollView *)scrollView
{
return _scrollView.get();
}
- (WKBrowsingContextController *)browsingContextController
{
return [_contentView browsingContextController];
}
static inline CGFloat floorToDevicePixel(CGFloat input, float deviceScaleFactor)
{
return CGFloor(input * deviceScaleFactor) / deviceScaleFactor;
}
static CGSize roundScrollViewContentSize(const WebKit::WebPageProxy& page, CGSize contentSize)
{
float deviceScaleFactor = page.deviceScaleFactor();
return CGSizeMake(floorToDevicePixel(contentSize.width, deviceScaleFactor), floorToDevicePixel(contentSize.height, deviceScaleFactor));
}
- (UIView *)_currentContentView
{
return _customContentView ? _customContentView.get() : _contentView.get();
}
- (void)_setHasCustomContentView:(BOOL)pageHasCustomContentView loadedMIMEType:(const WTF::String&)mimeType
{
if (pageHasCustomContentView) {
[_customContentView removeFromSuperview];
[_customContentFixedOverlayView removeFromSuperview];
Class representationClass = [[_configuration _contentProviderRegistry] providerForMIMEType:mimeType];
ASSERT(representationClass);
_customContentView = adoptNS([[representationClass alloc] web_initWithFrame:self.bounds webView:self]);
_customContentFixedOverlayView = adoptNS([[UIView alloc] initWithFrame:self.bounds]);
[_customContentFixedOverlayView setUserInteractionEnabled:NO];
[[_contentView unscaledView] removeFromSuperview];
[_contentView removeFromSuperview];
[_scrollView addSubview:_customContentView.get()];
[self addSubview:_customContentFixedOverlayView.get()];
[_customContentView web_setMinimumSize:self.bounds.size];
[_customContentView web_setFixedOverlayView:_customContentFixedOverlayView.get()];
} else if (_customContentView) {
[_customContentView removeFromSuperview];
_customContentView = nullptr;
[_customContentFixedOverlayView removeFromSuperview];
_customContentFixedOverlayView = nullptr;
[_scrollView addSubview:_contentView.get()];
[_scrollView addSubview:[_contentView unscaledView]];
[_scrollView setContentSize:roundScrollViewContentSize(*_page, [_contentView frame].size)];
[_customContentFixedOverlayView setFrame:self.bounds];
[self addSubview:_customContentFixedOverlayView.get()];
}
}
- (void)_didFinishLoadingDataForCustomContentProviderWithSuggestedFilename:(const String&)suggestedFilename data:(NSData *)data
{
ASSERT(_customContentView);
[_customContentView web_setContentProviderData:data suggestedFilename:suggestedFilename];
}
- (void)_setViewportMetaTagWidth:(float)newWidth
{
_viewportMetaTagWidth = newWidth;
}
- (void)_willInvokeUIScrollViewDelegateCallback
{
_delayUpdateVisibleContentRects = YES;
}
- (void)_didInvokeUIScrollViewDelegateCallback
{
_delayUpdateVisibleContentRects = NO;
if (_hadDelayedUpdateVisibleContentRects) {
_hadDelayedUpdateVisibleContentRects = NO;
[self _updateVisibleContentRects];
}
}
static CGFloat contentZoomScale(WKWebView *webView)
{
CGFloat scale = webView._currentContentView.layer.affineTransform.a;
ASSERT(scale == [webView->_scrollView zoomScale]);
return scale;
}
static WebCore::Color scrollViewBackgroundColor(WKWebView *webView)
{
if (!webView.opaque)
return WebCore::Color::transparent;
WebCore::Color color;
if (webView->_customContentView)
color = [webView->_customContentView backgroundColor].CGColor;
else
color = webView->_page->pageExtendedBackgroundColor();
if (!color.isValid())
color = WebCore::Color::white;
CGFloat zoomScale = contentZoomScale(webView);
CGFloat minimumZoomScale = [webView->_scrollView minimumZoomScale];
if (zoomScale < minimumZoomScale) {
CGFloat slope = 12;
CGFloat opacity = std::max<CGFloat>(1 - slope * (minimumZoomScale - zoomScale), 0);
color = WebCore::colorWithOverrideAlpha(color.rgb(), opacity);
}
return color;
}
- (void)_updateScrollViewBackground
{
WebCore::Color color = scrollViewBackgroundColor(self);
if (_scrollViewBackgroundColor == color)
return;
_scrollViewBackgroundColor = color;
auto uiBackgroundColor = adoptNS([[UIColor alloc] initWithCGColor:cachedCGColor(color, WebCore::ColorSpaceDeviceRGB)]);
[_scrollView setBackgroundColor:uiBackgroundColor.get()];
}
- (void)_setUsesMinimalUI:(BOOL)usesMinimalUI
{
_usesMinimalUI = usesMinimalUI;
_needsToNotifyDelegateAboutMinimalUI = YES;
}
- (BOOL)_usesMinimalUI
{
return _usesMinimalUI;
}
- (CGPoint)_adjustedContentOffset:(CGPoint)point
{
CGPoint result = point;
UIEdgeInsets contentInset = [self _computedContentInset];
result.x -= contentInset.left;
result.y -= contentInset.top;
return result;
}
- (UIEdgeInsets)_computedContentInset
{
if (_haveSetObscuredInsets)
return _obscuredInsets;
return [_scrollView contentInset];
}
- (void)_processDidExit
{
if (!_customContentView && _dynamicViewportUpdateMode != DynamicViewportUpdateMode::NotResizing) {
NSUInteger indexOfResizeAnimationView = [[_scrollView subviews] indexOfObject:_resizeAnimationView.get()];
[_scrollView insertSubview:_contentView.get() atIndex:indexOfResizeAnimationView];
[_scrollView insertSubview:[_contentView unscaledView] atIndex:indexOfResizeAnimationView + 1];
[_resizeAnimationView removeFromSuperview];
_resizeAnimationView = nil;
_resizeAnimationTransformAdjustments = CATransform3DIdentity;
}
[_contentView setFrame:self.bounds];
[_scrollView setBackgroundColor:[UIColor whiteColor]];
[_scrollView setContentOffset:[self _adjustedContentOffset:CGPointZero]];
[_scrollView setZoomScale:1];
_viewportMetaTagWidth = -1;
_hasCommittedLoadForMainFrame = NO;
_needsResetViewStateAfterCommitLoadForMainFrame = NO;
_dynamicViewportUpdateMode = DynamicViewportUpdateMode::NotResizing;
[_contentView setHidden:NO];
_needsToRestoreExposedRect = NO;
_needsToRestoreUnobscuredCenter = NO;
_scrollViewBackgroundColor = WebCore::Color();
_delayUpdateVisibleContentRects = NO;
_hadDelayedUpdateVisibleContentRects = NO;
}
- (void)_didCommitLoadForMainFrame
{
_firstPaintAfterCommitLoadTransactionID = toRemoteLayerTreeDrawingAreaProxy(_page->drawingArea())->nextLayerTreeTransactionID();
_hasCommittedLoadForMainFrame = YES;
_needsResetViewStateAfterCommitLoadForMainFrame = YES;
_usesMinimalUI = NO;
}
static CGPoint contentOffsetBoundedInValidRange(UIScrollView *scrollView, CGPoint contentOffset)
{
UIEdgeInsets contentInsets = scrollView.contentInset;
CGSize contentSize = scrollView.contentSize;
CGSize scrollViewSize = scrollView.bounds.size;
CGFloat maxHorizontalOffset = contentSize.width + contentInsets.right - scrollViewSize.width;
contentOffset.x = std::min(maxHorizontalOffset, contentOffset.x);
contentOffset.x = std::max(-contentInsets.left, contentOffset.x);
CGFloat maxVerticalOffset = contentSize.height + contentInsets.bottom - scrollViewSize.height;
contentOffset.y = std::min(maxVerticalOffset, contentOffset.y);
contentOffset.y = std::max(-contentInsets.top, contentOffset.y);
return contentOffset;
}
static void changeContentOffsetBoundedInValidRange(UIScrollView *scrollView, WebCore::FloatPoint contentOffset)
{
scrollView.contentOffset = contentOffsetBoundedInValidRange(scrollView, contentOffset);
}
// WebCore stores the page scale factor as float instead of double. When we get a scale from WebCore,
// we need to ignore differences that are within a small rounding error on floats.
template <typename TypeA, typename TypeB>
static inline bool withinEpsilon(TypeA a, TypeB b)
{
return std::abs(a - b) < std::numeric_limits<float>::epsilon();
}
- (void)_didCommitLayerTree:(const WebKit::RemoteLayerTreeTransaction&)layerTreeTransaction
{
if (_customContentView)
return;
if (_dynamicViewportUpdateMode != DynamicViewportUpdateMode::NotResizing) {
if (layerTreeTransaction.transactionID() >= _resizeAnimationTransformTransactionID) {
[_resizeAnimationView layer].sublayerTransform = _resizeAnimationTransformAdjustments;
if (_dynamicViewportUpdateMode == DynamicViewportUpdateMode::ResizingWithDocumentHidden) {
[_contentView setHidden:NO];
[self _endAnimatedResize];
}
}
return;
}
CGSize newContentSize = roundScrollViewContentSize(*_page, [_contentView frame].size);
[_scrollView _setContentSizePreservingContentOffsetDuringRubberband:newContentSize];
[_scrollView setMinimumZoomScale:layerTreeTransaction.minimumScaleFactor()];
[_scrollView setMaximumZoomScale:layerTreeTransaction.maximumScaleFactor()];
[_scrollView setZoomEnabled:layerTreeTransaction.allowsUserScaling()];
if (!layerTreeTransaction.scaleWasSetByUIProcess() && ![_scrollView isZooming] && ![_scrollView isZoomBouncing] && ![_scrollView _isAnimatingZoom])
[_scrollView setZoomScale:layerTreeTransaction.pageScaleFactor()];
[self _updateScrollViewBackground];
if (_gestureController)
_gestureController->setRenderTreeSize(layerTreeTransaction.renderTreeSize());
if (_needsToNotifyDelegateAboutMinimalUI || _needsResetViewStateAfterCommitLoadForMainFrame) {
_needsToNotifyDelegateAboutMinimalUI = NO;
auto delegate = _uiDelegate->delegate();
if ([delegate respondsToSelector:@selector(_webView:usesMinimalUI:)])
[static_cast<id <WKUIDelegatePrivate>>(delegate.get()) _webView:self usesMinimalUI:_usesMinimalUI];
}
if (_needsResetViewStateAfterCommitLoadForMainFrame && layerTreeTransaction.transactionID() >= _firstPaintAfterCommitLoadTransactionID) {
_needsResetViewStateAfterCommitLoadForMainFrame = NO;
[_scrollView setContentOffset:[self _adjustedContentOffset:CGPointZero]];
[self _updateVisibleContentRects];
}
if (_needsToRestoreExposedRect && layerTreeTransaction.transactionID() >= _firstTransactionIDAfterPageRestore) {
_needsToRestoreExposedRect = NO;
if (withinEpsilon(contentZoomScale(self), _scaleToRestore)) {
WebCore::FloatPoint exposedPosition = _exposedRectToRestore.location();
exposedPosition.scale(_scaleToRestore, _scaleToRestore);
changeContentOffsetBoundedInValidRange(_scrollView.get(), exposedPosition);
}
[self _updateVisibleContentRects];
}
if (_needsToRestoreUnobscuredCenter && layerTreeTransaction.transactionID() >= _firstTransactionIDAfterPageRestore) {
_needsToRestoreUnobscuredCenter = NO;
if (withinEpsilon(contentZoomScale(self), _scaleToRestore)) {
CGRect unobscuredRect = UIEdgeInsetsInsetRect(self.bounds, _obscuredInsets);
WebCore::FloatSize unobscuredContentSizeAtNewScale(unobscuredRect.size.width / _scaleToRestore, unobscuredRect.size.height / _scaleToRestore);
WebCore::FloatPoint topLeftInDocumentCoordinate(_unobscuredCenterToRestore.x() - unobscuredContentSizeAtNewScale.width() / 2, _unobscuredCenterToRestore.y() - unobscuredContentSizeAtNewScale.height() / 2);
topLeftInDocumentCoordinate.scale(_scaleToRestore, _scaleToRestore);
topLeftInDocumentCoordinate.moveBy(WebCore::FloatPoint(-_obscuredInsets.left, -_obscuredInsets.top));
changeContentOffsetBoundedInValidRange(_scrollView.get(), topLeftInDocumentCoordinate);
}
[self _updateVisibleContentRects];
}
}
- (void)_dynamicViewportUpdateChangedTargetToScale:(double)newScale position:(CGPoint)newScrollPosition nextValidLayerTreeTransactionID:(uint64_t)nextValidLayerTreeTransactionID
{
if (_dynamicViewportUpdateMode != DynamicViewportUpdateMode::NotResizing) {
CGFloat animatingScaleTarget = [[_resizeAnimationView layer] transform].m11;
double currentTargetScale = animatingScaleTarget * [[_contentView layer] transform].m11;
double scale = newScale / currentTargetScale;
_resizeAnimationTransformAdjustments = CATransform3DMakeScale(scale, scale, 1);
CGPoint newContentOffset = [self _adjustedContentOffset:CGPointMake(newScrollPosition.x * newScale, newScrollPosition.y * newScale)];
CGPoint currentContentOffset = [_scrollView contentOffset];
_resizeAnimationTransformAdjustments.m41 = (currentContentOffset.x - newContentOffset.x) / animatingScaleTarget;
_resizeAnimationTransformAdjustments.m42 = (currentContentOffset.y - newContentOffset.y) / animatingScaleTarget;
_resizeAnimationTransformTransactionID = nextValidLayerTreeTransactionID;
}
}
- (void)_restorePageStateToExposedRect:(WebCore::FloatRect)exposedRect scale:(double)scale
{
if (_dynamicViewportUpdateMode != DynamicViewportUpdateMode::NotResizing)
return;
if (_customContentView)
return;
_needsToRestoreUnobscuredCenter = NO;
_needsToRestoreExposedRect = YES;
_firstTransactionIDAfterPageRestore = toRemoteLayerTreeDrawingAreaProxy(_page->drawingArea())->nextLayerTreeTransactionID();
_exposedRectToRestore = exposedRect;
_scaleToRestore = scale;
}
- (void)_restorePageStateToUnobscuredCenter:(WebCore::FloatPoint)center scale:(double)scale
{
if (_dynamicViewportUpdateMode != DynamicViewportUpdateMode::NotResizing)
return;
if (_customContentView)
return;
_needsToRestoreExposedRect = NO;
_needsToRestoreUnobscuredCenter = YES;
_firstTransactionIDAfterPageRestore = toRemoteLayerTreeDrawingAreaProxy(_page->drawingArea())->nextLayerTreeTransactionID();
_unobscuredCenterToRestore = center;
_scaleToRestore = scale;
}
- (PassRefPtr<WebKit::ViewSnapshot>)_takeViewSnapshot
{
float deviceScale = WKGetScreenScaleFactor();
CGSize snapshotSize = self.bounds.size;
snapshotSize.width *= deviceScale;
snapshotSize.height *= deviceScale;
uint32_t slotID = [WebKit::ViewSnapshotStore::snapshottingContext() createImageSlot:snapshotSize hasAlpha:YES];
if (!slotID)
return nullptr;
CATransform3D transform = CATransform3DMakeScale(deviceScale, deviceScale, 1);
CARenderServerCaptureLayerWithTransform(MACH_PORT_NULL, self.layer.context.contextId, (uint64_t)self.layer, slotID, 0, 0, &transform);
WebCore::IntSize imageSize = WebCore::expandedIntSize(WebCore::FloatSize(snapshotSize));
return WebKit::ViewSnapshot::create(slotID, imageSize, imageSize.width() * imageSize.height() * 4);
}
- (void)_zoomToPoint:(WebCore::FloatPoint)point atScale:(double)scale
{
double maximumZoomDuration = 0.4;
double minimumZoomDuration = 0.1;
double zoomDurationFactor = 0.3;
CGFloat zoomScale = contentZoomScale(self);
CFTimeInterval duration = std::min(fabs(log(zoomScale) - log(scale)) * zoomDurationFactor + minimumZoomDuration, maximumZoomDuration);
if (scale != zoomScale)
_page->willStartUserTriggeredZooming();
[_scrollView _zoomToCenter:point scale:scale duration:duration];
}
- (void)_zoomToRect:(WebCore::FloatRect)targetRect atScale:(double)scale origin:(WebCore::FloatPoint)origin
{
// FIMXE: Some of this could be shared with _scrollToRect.
const double visibleRectScaleChange = contentZoomScale(self) / scale;
const WebCore::FloatRect visibleRect([self convertRect:self.bounds toView:self._currentContentView]);
const WebCore::FloatRect unobscuredRect([self _contentRectForUserInteraction]);
const WebCore::FloatSize topLeftObscuredInsetAfterZoom((unobscuredRect.minXMinYCorner() - visibleRect.minXMinYCorner()) * visibleRectScaleChange);
const WebCore::FloatSize bottomRightObscuredInsetAfterZoom((visibleRect.maxXMaxYCorner() - unobscuredRect.maxXMaxYCorner()) * visibleRectScaleChange);
const WebCore::FloatSize unobscuredRectSizeAfterZoom(unobscuredRect.size() * visibleRectScaleChange);
// Center to the target rect.
WebCore::FloatPoint unobscuredRectLocationAfterZoom = targetRect.location() - (unobscuredRectSizeAfterZoom - targetRect.size()) * 0.5;
// Center to the tap point instead in case the target rect won't fit in a direction.
if (targetRect.width() > unobscuredRectSizeAfterZoom.width())
unobscuredRectLocationAfterZoom.setX(origin.x() - unobscuredRectSizeAfterZoom.width() / 2);
if (targetRect.height() > unobscuredRectSizeAfterZoom.height())
unobscuredRectLocationAfterZoom.setY(origin.y() - unobscuredRectSizeAfterZoom.height() / 2);
// We have computed where we want the unobscured rect to be. Now adjust for the obscuring insets.
WebCore::FloatRect visibleRectAfterZoom(unobscuredRectLocationAfterZoom, unobscuredRectSizeAfterZoom);
visibleRectAfterZoom.move(-topLeftObscuredInsetAfterZoom);
visibleRectAfterZoom.expand(topLeftObscuredInsetAfterZoom + bottomRightObscuredInsetAfterZoom);
[self _zoomToPoint:visibleRectAfterZoom.center() atScale:scale];
}
static WebCore::FloatPoint constrainContentOffset(WebCore::FloatPoint contentOffset, WebCore::FloatSize contentSize, WebCore::FloatSize unobscuredContentSize)
{
WebCore::FloatSize maximumContentOffset = contentSize - unobscuredContentSize;
contentOffset = contentOffset.shrunkTo(WebCore::FloatPoint(maximumContentOffset.width(), maximumContentOffset.height()));
contentOffset = contentOffset.expandedTo(WebCore::FloatPoint());
return contentOffset;
}
- (void)_scrollToContentOffset:(WebCore::FloatPoint)contentOffsetInPageCoordinates
{
if (_dynamicViewportUpdateMode != DynamicViewportUpdateMode::NotResizing)
return;
WebCore::FloatPoint scaledOffset = contentOffsetInPageCoordinates;
CGFloat zoomScale = contentZoomScale(self);
scaledOffset.scale(zoomScale, zoomScale);
CGPoint contentOffsetInScrollViewCoordinates = [self _adjustedContentOffset:scaledOffset];
contentOffsetInScrollViewCoordinates = contentOffsetBoundedInValidRange(_scrollView.get(), contentOffsetInScrollViewCoordinates);
[_scrollView _stopScrollingAndZoomingAnimations];
if (!CGPointEqualToPoint(contentOffsetInScrollViewCoordinates, [_scrollView contentOffset]))
[_scrollView setContentOffset:contentOffsetInScrollViewCoordinates];
else {
// If we haven't changed anything, there would not be any VisibleContentRect update sent to the content.
// The WebProcess would keep the invalid contentOffset as its scroll position.
// To synchronize the WebProcess with what is on screen, we send the VisibleContentRect again.
_page->resendLastVisibleContentRects();
}
}
- (BOOL)_scrollToRect:(WebCore::FloatRect)targetRect origin:(WebCore::FloatPoint)origin minimumScrollDistance:(float)minimumScrollDistance
{
WebCore::FloatRect unobscuredContentRect([self _contentRectForUserInteraction]);
WebCore::FloatPoint unobscuredContentOffset = unobscuredContentRect.location();
WebCore::FloatSize contentSize([self._currentContentView bounds].size);
// Center the target rect in the scroll view.
// If the target doesn't fit in the scroll view, center on the gesture location instead.
WebCore::FloatPoint newUnobscuredContentOffset;
if (targetRect.width() <= unobscuredContentRect.width())
newUnobscuredContentOffset.setX(targetRect.x() - (unobscuredContentRect.width() - targetRect.width()) / 2);
else
newUnobscuredContentOffset.setX(origin.x() - unobscuredContentRect.width() / 2);
if (targetRect.height() <= unobscuredContentRect.height())
newUnobscuredContentOffset.setY(targetRect.y() - (unobscuredContentRect.height() - targetRect.height()) / 2);
else
newUnobscuredContentOffset.setY(origin.y() - unobscuredContentRect.height() / 2);
newUnobscuredContentOffset = constrainContentOffset(newUnobscuredContentOffset, contentSize, unobscuredContentRect.size());
if (unobscuredContentOffset == newUnobscuredContentOffset) {
if (targetRect.width() > unobscuredContentRect.width())
newUnobscuredContentOffset.setX(origin.x() - unobscuredContentRect.width() / 2);
if (targetRect.height() > unobscuredContentRect.height())
newUnobscuredContentOffset.setY(origin.y() - unobscuredContentRect.height() / 2);
newUnobscuredContentOffset = constrainContentOffset(newUnobscuredContentOffset, contentSize, unobscuredContentRect.size());
}
WebCore::FloatSize scrollViewOffsetDelta = newUnobscuredContentOffset - unobscuredContentOffset;
scrollViewOffsetDelta.scale(contentZoomScale(self));
float scrollDistance = scrollViewOffsetDelta.diagonalLength();
if (scrollDistance < minimumScrollDistance)
return false;
[_scrollView setContentOffset:([_scrollView contentOffset] + scrollViewOffsetDelta) animated:YES];
return true;
}
- (void)_zoomOutWithOrigin:(WebCore::FloatPoint)origin
{
[self _zoomToPoint:origin atScale:[_scrollView minimumZoomScale]];
}
// focusedElementRect and selectionRect are both in document coordinates.
- (void)_zoomToFocusRect:(WebCore::FloatRect)focusedElementRectInDocumentCoordinates selectionRect:(WebCore::FloatRect)selectionRectInDocumentCoordinates fontSize:(float)fontSize minimumScale:(double)minimumScale maximumScale:(double)maximumScale allowScaling:(BOOL)allowScaling forceScroll:(BOOL)forceScroll
{
const double WKWebViewStandardFontSize = 16;
const double kMinimumHeightToShowContentAboveKeyboard = 106;
const CFTimeInterval UIWebFormAnimationDuration = 0.25;
const double CaretOffsetFromWindowEdge = 20;
// Zoom around the element's bounding frame. We use a "standard" size to determine the proper frame.
double scale = allowScaling ? std::min(std::max(WKWebViewStandardFontSize / fontSize, minimumScale), maximumScale) : contentZoomScale(self);
CGFloat documentWidth = [_contentView bounds].size.width;
scale = CGRound(documentWidth * scale) / documentWidth;
UIWindow *window = [_scrollView window];
WebCore::FloatRect focusedElementRectInNewScale = focusedElementRectInDocumentCoordinates;
focusedElementRectInNewScale.scale(scale);
focusedElementRectInNewScale.moveBy([_contentView frame].origin);
// Find the portion of the view that is visible on the screen.
UIViewController *topViewController = [[[_scrollView _viewControllerForAncestor] _rootAncestorViewController] _viewControllerForSupportedInterfaceOrientations];
UIView *fullScreenView = topViewController.view;
if (!fullScreenView)
fullScreenView = window;
CGRect unobscuredScrollViewRectInWebViewCoordinates = UIEdgeInsetsInsetRect([self bounds], _obscuredInsets);
CGRect visibleScrollViewBoundsInWebViewCoordinates = CGRectIntersection(unobscuredScrollViewRectInWebViewCoordinates, [fullScreenView convertRect:[fullScreenView bounds] toView:self]);
CGRect formAssistantFrameInWebViewCoordinates = [window convertRect:_inputViewBounds toView:self];
CGRect intersectionBetweenScrollViewAndFormAssistant = CGRectIntersection(visibleScrollViewBoundsInWebViewCoordinates, formAssistantFrameInWebViewCoordinates);
CGSize visibleSize = visibleScrollViewBoundsInWebViewCoordinates.size;
CGFloat visibleOffsetFromTop = 0;
if (!CGRectIsEmpty(intersectionBetweenScrollViewAndFormAssistant)) {
CGFloat heightVisibleAboveFormAssistant = CGRectGetMinY(intersectionBetweenScrollViewAndFormAssistant) - CGRectGetMinY(visibleScrollViewBoundsInWebViewCoordinates);
CGFloat heightVisibleBelowFormAssistant = CGRectGetMaxY(visibleScrollViewBoundsInWebViewCoordinates) - CGRectGetMaxY(intersectionBetweenScrollViewAndFormAssistant);
if (heightVisibleAboveFormAssistant >= kMinimumHeightToShowContentAboveKeyboard || heightVisibleBelowFormAssistant < heightVisibleAboveFormAssistant)
visibleSize.height = heightVisibleAboveFormAssistant;
else {
visibleSize.height = heightVisibleBelowFormAssistant;
visibleOffsetFromTop = CGRectGetMaxY(intersectionBetweenScrollViewAndFormAssistant) - CGRectGetMinY(visibleScrollViewBoundsInWebViewCoordinates);
}
}
BOOL selectionRectIsNotNull = !selectionRectInDocumentCoordinates.isZero();
if (!forceScroll) {
CGRect currentlyVisibleRegionInWebViewCoordinates;
currentlyVisibleRegionInWebViewCoordinates.origin = unobscuredScrollViewRectInWebViewCoordinates.origin;
currentlyVisibleRegionInWebViewCoordinates.origin.y += visibleOffsetFromTop;
currentlyVisibleRegionInWebViewCoordinates.size = visibleSize;
// Don't bother scrolling if the entire node is already visible, whether or not we got a selectionRect.
if (CGRectContainsRect(currentlyVisibleRegionInWebViewCoordinates, [self convertRect:focusedElementRectInDocumentCoordinates fromView:_contentView.get()]))
return;
// Don't bother scrolling if we have a valid selectionRect and it is already visible.
if (selectionRectIsNotNull && CGRectContainsRect(currentlyVisibleRegionInWebViewCoordinates, [self convertRect:selectionRectInDocumentCoordinates fromView:_contentView.get()]))
return;
}
// We want to zoom to the left/top corner of the DOM node, with as much spacing on all sides as we
// can get based on the visible area after zooming (workingFrame). The spacing in either dimension is half the
// difference between the size of the DOM node and the size of the visible frame.
CGFloat horizontalSpaceInWebViewCoordinates = std::max((visibleSize.width - focusedElementRectInNewScale.width()) / 2.0, 0.0);
CGFloat verticalSpaceInWebViewCoordinates = std::max((visibleSize.height - focusedElementRectInNewScale.height()) / 2.0, 0.0);
CGPoint topLeft;
topLeft.x = focusedElementRectInNewScale.x() - horizontalSpaceInWebViewCoordinates;
topLeft.y = focusedElementRectInNewScale.y() - verticalSpaceInWebViewCoordinates - visibleOffsetFromTop;
CGFloat minimumAllowableHorizontalOffsetInWebViewCoordinates = -INFINITY;
CGFloat minimumAllowableVerticalOffsetInWebViewCoordinates = -INFINITY;
if (selectionRectIsNotNull) {
WebCore::FloatRect selectionRectInNewScale = selectionRectInDocumentCoordinates;
selectionRectInNewScale.scale(scale);
selectionRectInNewScale.moveBy([_contentView frame].origin);
minimumAllowableHorizontalOffsetInWebViewCoordinates = CGRectGetMaxX(selectionRectInNewScale) + CaretOffsetFromWindowEdge - visibleSize.width;
minimumAllowableVerticalOffsetInWebViewCoordinates = CGRectGetMaxY(selectionRectInNewScale) + CaretOffsetFromWindowEdge - visibleSize.height - visibleOffsetFromTop;
}
WebCore::FloatRect documentBoundsInNewScale = [_contentView bounds];
documentBoundsInNewScale.scale(scale);
documentBoundsInNewScale.moveBy([_contentView frame].origin);
// Constrain the left edge in document coordinates so that:
// - it isn't so small that the scrollVisibleRect isn't visible on the screen
// - it isn't so great that the document's right edge is less than the right edge of the screen
if (selectionRectIsNotNull && topLeft.x < minimumAllowableHorizontalOffsetInWebViewCoordinates)
topLeft.x = minimumAllowableHorizontalOffsetInWebViewCoordinates;
else {
CGFloat maximumAllowableHorizontalOffset = CGRectGetMaxX(documentBoundsInNewScale) - visibleSize.width;
if (topLeft.x > maximumAllowableHorizontalOffset)
topLeft.x = maximumAllowableHorizontalOffset;
}
// Constrain the top edge in document coordinates so that:
// - it isn't so small that the scrollVisibleRect isn't visible on the screen
// - it isn't so great that the document's bottom edge is higher than the top of the form assistant
if (selectionRectIsNotNull && topLeft.y < minimumAllowableVerticalOffsetInWebViewCoordinates)
topLeft.y = minimumAllowableVerticalOffsetInWebViewCoordinates;
else {
CGFloat maximumAllowableVerticalOffset = CGRectGetMaxY(documentBoundsInNewScale) - visibleSize.height;
if (topLeft.y > maximumAllowableVerticalOffset)
topLeft.y = maximumAllowableVerticalOffset;
}
WebCore::FloatPoint newCenter = CGPointMake(topLeft.x + unobscuredScrollViewRectInWebViewCoordinates.size.width / 2.0, topLeft.y + unobscuredScrollViewRectInWebViewCoordinates.size.height / 2.0);
if (scale != contentZoomScale(self))
_page->willStartUserTriggeredZooming();
// The newCenter has been computed in the new scale, but _zoomToCenter expected the center to be in the original scale.
newCenter.scale(1 / scale, 1 / scale);
[_scrollView _zoomToCenter:newCenter
scale:scale
duration:UIWebFormAnimationDuration
force:YES];
}
- (BOOL)_zoomToRect:(WebCore::FloatRect)targetRect withOrigin:(WebCore::FloatPoint)origin fitEntireRect:(BOOL)fitEntireRect minimumScale:(double)minimumScale maximumScale:(double)maximumScale minimumScrollDistance:(float)minimumScrollDistance
{
const float maximumScaleFactorDeltaForPanScroll = 0.02;
double currentScale = contentZoomScale(self);
WebCore::FloatSize unobscuredContentSize([self _contentRectForUserInteraction].size);
double horizontalScale = unobscuredContentSize.width() * currentScale / targetRect.width();
double verticalScale = unobscuredContentSize.height() * currentScale / targetRect.height();
horizontalScale = std::min(std::max(horizontalScale, minimumScale), maximumScale);
verticalScale = std::min(std::max(verticalScale, minimumScale), maximumScale);
double targetScale = fitEntireRect ? std::min(horizontalScale, verticalScale) : horizontalScale;
if (fabs(targetScale - currentScale) < maximumScaleFactorDeltaForPanScroll) {
if ([self _scrollToRect:targetRect origin:origin minimumScrollDistance:minimumScrollDistance])
return true;
} else if (targetScale != currentScale) {
[self _zoomToRect:targetRect atScale:targetScale origin:origin];
return true;
}
return false;
}
- (void)didMoveToWindow
{
_page->viewStateDidChange(WebCore::ViewState::IsInWindow);
}
- (void)setOpaque:(BOOL)opaque
{
BOOL oldOpaque = self.opaque;
[super setOpaque:opaque];
[_contentView setOpaque:opaque];
if (oldOpaque == opaque)
return;
_page->setDrawsBackground(opaque);
[self _updateScrollViewBackground];
}
- (void)setBackgroundColor:(UIColor *)backgroundColor
{
[super setBackgroundColor:backgroundColor];
[_contentView setBackgroundColor:backgroundColor];
}
#pragma mark - UIScrollViewDelegate
- (BOOL)usesStandardContentView
{
return !_customContentView;
}
- (CGSize)scrollView:(UIScrollView*)scrollView contentSizeForZoomScale:(CGFloat)scale withProposedSize:(CGSize)proposedSize
{
return roundScrollViewContentSize(*_page, proposedSize);
}
- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView
{
ASSERT(_scrollView == scrollView);
if (_customContentView)
return _customContentView.get();
return _contentView.get();
}
- (void)scrollViewWillBeginZooming:(UIScrollView *)scrollView withView:(UIView *)view
{
if (![self usesStandardContentView])
return;
if (scrollView.pinchGestureRecognizer.state == UIGestureRecognizerStateBegan) {
_page->willStartUserTriggeredZooming();
[_contentView scrollViewWillStartPanOrPinchGesture];
}
[_contentView willStartZoomOrScroll];
}
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
if (![self usesStandardContentView])
return;
if (scrollView.panGestureRecognizer.state == UIGestureRecognizerStateBegan)
[_contentView scrollViewWillStartPanOrPinchGesture];
[_contentView willStartZoomOrScroll];
}
- (void)_didFinishScrolling
{
if (![self usesStandardContentView])
return;
[self _updateVisibleContentRects];
[_contentView didFinishScrolling];
}
- (void)scrollViewWillEndDragging:(UIScrollView *)scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint *)targetContentOffset
{
// Work around <rdar://problem/16374753> by avoiding deceleration while
// zooming. We'll animate to the right place once the zoom finishes.
if ([scrollView isZooming])
*targetContentOffset = [scrollView contentOffset];
}
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
{
// If we're decelerating, scroll offset will be updated when scrollViewDidFinishDecelerating: is called.
if (!decelerate)
[self _didFinishScrolling];
}
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
[self _didFinishScrolling];
}
- (void)scrollViewDidScrollToTop:(UIScrollView *)scrollView
{
[self _didFinishScrolling];
}
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
if (![self usesStandardContentView])
[_customContentView scrollViewDidScroll:(UIScrollView *)scrollView];
[self _updateVisibleContentRects];
}
- (void)scrollViewDidZoom:(UIScrollView *)scrollView
{
[self _updateScrollViewBackground];
[self _updateVisibleContentRects];
}
- (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(CGFloat)scale
{
ASSERT(scrollView == _scrollView);
[self _updateVisibleContentRects];
[_contentView didZoomToScale:scale];
}
- (void)_frameOrBoundsChanged
{
CGRect bounds = self.bounds;
[_scrollView setFrame:bounds];
if (_dynamicViewportUpdateMode == DynamicViewportUpdateMode::NotResizing) {
if (!_overridesMinimumLayoutSize)
_page->setViewportConfigurationMinimumLayoutSize(WebCore::FloatSize(bounds.size));
if (!_overridesMinimumLayoutSizeForMinimalUI)
_page->setViewportConfigurationMinimumLayoutSizeForMinimalUI(WebCore::FloatSize(bounds.size));
if (!_overridesMaximumUnobscuredSize)
_page->setMaximumUnobscuredSize(WebCore::FloatSize(bounds.size));
if (WebKit::DrawingAreaProxy* drawingArea = _page->drawingArea())
drawingArea->setSize(WebCore::IntSize(bounds.size), WebCore::IntSize(), WebCore::IntSize());
}
[_customContentView web_setMinimumSize:bounds.size];
[self _updateVisibleContentRects];
}
// Unobscured content rect where the user can interact. When the keyboard is up, this should be the area above or bellow the keyboard, wherever there is enough space.
- (CGRect)_contentRectForUserInteraction
{
// FIXME: handle split keyboard.
UIEdgeInsets obscuredInsets = _obscuredInsets;
obscuredInsets.bottom = std::max(_obscuredInsets.bottom, _inputViewBounds.size.height);
CGRect unobscuredRect = UIEdgeInsetsInsetRect(self.bounds, obscuredInsets);
return [self convertRect:unobscuredRect toView:self._currentContentView];
}
- (void)_updateVisibleContentRects
{
if (![self usesStandardContentView]) {
[_customContentView web_computedContentInsetDidChange];
return;
}
if (_delayUpdateVisibleContentRects) {
_hadDelayedUpdateVisibleContentRects = YES;
return;
}
if (_dynamicViewportUpdateMode != DynamicViewportUpdateMode::NotResizing)
return;
if (_needsResetViewStateAfterCommitLoadForMainFrame)
return;
CGRect fullViewRect = self.bounds;
CGRect visibleRectInContentCoordinates = [self convertRect:fullViewRect toView:_contentView.get()];
CGRect unobscuredRect = UIEdgeInsetsInsetRect(fullViewRect, [self _computedContentInset]);
CGRect unobscuredRectInContentCoordinates = [self convertRect:unobscuredRect toView:_contentView.get()];
CGFloat scaleFactor = contentZoomScale(self);
BOOL isStableState = !(_isChangingObscuredInsetsInteractively || [_scrollView isDragging] || [_scrollView isDecelerating] || [_scrollView isZooming] || [_scrollView isZoomBouncing] || [_scrollView _isAnimatingZoom] || [_scrollView _isScrollingToTop]);
[_contentView didUpdateVisibleRect:visibleRectInContentCoordinates
unobscuredRect:unobscuredRectInContentCoordinates
unobscuredRectInScrollViewCoordinates:unobscuredRect
scale:scaleFactor minimumScale:[_scrollView minimumZoomScale]
inStableState:isStableState isChangingObscuredInsetsInteractively:_isChangingObscuredInsetsInteractively];
}
- (void)_keyboardChangedWithInfo:(NSDictionary *)keyboardInfo adjustScrollView:(BOOL)adjustScrollView
{
NSValue *endFrameValue = [keyboardInfo objectForKey:UIKeyboardFrameEndUserInfoKey];
if (!endFrameValue)
return;
// The keyboard rect is always in screen coordinates. In the view services case the window does not
// have the interface orientation rotation transformation; its host does. So, it makes no sense to
// clip the keyboard rect against its screen.
if ([[self window] _isHostedInAnotherProcess])
_inputViewBounds = [self.window convertRect:[endFrameValue CGRectValue] fromWindow:nil];
else
_inputViewBounds = [self.window convertRect:CGRectIntersection([endFrameValue CGRectValue], self.window.screen.bounds) fromWindow:nil];
[self _updateVisibleContentRects];
if (adjustScrollView)
[_scrollView _adjustForAutomaticKeyboardInfo:keyboardInfo animated:YES lastAdjustment:&_lastAdjustmentForScroller];
}
- (void)_keyboardWillChangeFrame:(NSNotification *)notification
{
if ([_contentView isAssistingNode])
[self _keyboardChangedWithInfo:notification.userInfo adjustScrollView:YES];
}
- (void)_keyboardDidChangeFrame:(NSNotification *)notification
{
[self _keyboardChangedWithInfo:notification.userInfo adjustScrollView:NO];
}
- (void)_keyboardWillShow:(NSNotification *)notification
{
if ([_contentView isAssistingNode])
[self _keyboardChangedWithInfo:notification.userInfo adjustScrollView:YES];
}
- (void)_keyboardWillHide:(NSNotification *)notification
{
// Ignore keyboard will hide notifications sent during rotation. They're just there for
// backwards compatibility reasons and processing the will hide notification would
// temporarily screw up the the unobscured view area.
if ([[UIPeripheralHost sharedInstance] rotationState])
return;
[self _keyboardChangedWithInfo:notification.userInfo adjustScrollView:YES];
}
- (void)_windowDidRotate:(NSNotification *)notification
{
if (!_overridesInterfaceOrientation)
_page->setDeviceOrientation(deviceOrientation());
}
- (void)_contentSizeCategoryDidChange:(NSNotification *)notification
{
_page->contentSizeCategoryDidChange([self _contentSizeCategory]);
}
- (NSString *)_contentSizeCategory
{
return [[UIApplication sharedApplication] preferredContentSizeCategory];
}
- (void)setAllowsBackForwardNavigationGestures:(BOOL)allowsBackForwardNavigationGestures
{
if (_allowsBackForwardNavigationGestures == allowsBackForwardNavigationGestures)
return;
_allowsBackForwardNavigationGestures = allowsBackForwardNavigationGestures;
if (allowsBackForwardNavigationGestures) {
if (!_gestureController) {
_gestureController = std::make_unique<WebKit::ViewGestureController>(*_page);
_gestureController->installSwipeHandler(self, [self scrollView]);
_gestureController->setAlternateBackForwardListSourceView([_configuration _alternateWebViewForNavigationGestures]);
}
} else
_gestureController = nullptr;
_page->setShouldRecordNavigationSnapshots(allowsBackForwardNavigationGestures);
}
- (BOOL)allowsBackForwardNavigationGestures
{
return _allowsBackForwardNavigationGestures;
}
#endif
#pragma mark OS X-specific methods
#if PLATFORM(MAC)
- (void)resizeSubviewsWithOldSize:(NSSize)oldSize
{
[_wkView setFrame:self.bounds];
}
- (void)setAllowsBackForwardNavigationGestures:(BOOL)allowsBackForwardNavigationGestures
{
[_wkView setAllowsBackForwardNavigationGestures:allowsBackForwardNavigationGestures];
}
- (BOOL)allowsBackForwardNavigationGestures
{
return [_wkView allowsBackForwardNavigationGestures];
}
- (void)setAllowsMagnification:(BOOL)allowsMagnification
{
[_wkView setAllowsMagnification:allowsMagnification];
}
- (BOOL)allowsMagnification
{
return [_wkView allowsMagnification];
}
- (void)setMagnification:(CGFloat)magnification
{
[_wkView setMagnification:magnification];
}
- (CGFloat)magnification
{
return [_wkView magnification];
}
- (void)setMagnification:(CGFloat)magnification centeredAtPoint:(CGPoint)point
{
[_wkView setMagnification:magnification centeredAtPoint:NSPointFromCGPoint(point)];
}
#endif
@end
@implementation WKWebView (WKPrivate)
- (_WKRemoteObjectRegistry *)_remoteObjectRegistry
{
if (!_remoteObjectRegistry) {
_remoteObjectRegistry = adoptNS([[_WKRemoteObjectRegistry alloc] _initWithMessageSender:*_page]);
_page->process().context().addMessageReceiver(Messages::RemoteObjectRegistry::messageReceiverName(), _page->pageID(), [_remoteObjectRegistry remoteObjectRegistry]);
}
return _remoteObjectRegistry.get();
}
- (WKBrowsingContextHandle *)_handle
{
return [[[WKBrowsingContextHandle alloc] _initWithPageID:_page->pageID()] autorelease];
}
- (_WKRenderingProgressEvents)_observedRenderingProgressEvents
{
return _observedRenderingProgressEvents;
}
- (id <WKHistoryDelegatePrivate>)_historyDelegate
{
return _navigationState->historyDelegate().autorelease();
}
- (void)_setHistoryDelegate:(id <WKHistoryDelegatePrivate>)historyDelegate
{
_navigationState->setHistoryDelegate(historyDelegate);
}
- (NSURL *)_unreachableURL
{
return [NSURL _web_URLWithWTFString:_page->pageLoadState().unreachableURL()];
}
- (void)_loadAlternateHTMLString:(NSString *)string baseURL:(NSURL *)baseURL forUnreachableURL:(NSURL *)unreachableURL
{
_page->loadAlternateHTMLString(string, [baseURL _web_originalDataAsWTFString], [unreachableURL _web_originalDataAsWTFString]);
}
- (NSArray *)_certificateChain
{
if (WebKit::WebFrameProxy* mainFrame = _page->mainFrame())
return mainFrame->certificateInfo() ? (NSArray *)mainFrame->certificateInfo()->certificateInfo().certificateChain() : nil;
return nil;
}
- (NSURL *)_committedURL
{
return [NSURL _web_URLWithWTFString:_page->pageLoadState().url()];
}
- (NSString *)_MIMEType
{
if (_page->mainFrame())
return _page->mainFrame()->mimeType();
return nil;
}
- (NSString *)_applicationNameForUserAgent
{
return _page->applicationNameForUserAgent();
}
- (void)_setApplicationNameForUserAgent:(NSString *)applicationNameForUserAgent
{
_page->setApplicationNameForUserAgent(applicationNameForUserAgent);
}
- (NSString *)_customUserAgent
{
return _page->customUserAgent();
}
- (void)_setCustomUserAgent:(NSString *)_customUserAgent
{
_page->setCustomUserAgent(_customUserAgent);
}
- (pid_t)_webProcessIdentifier
{
return _page->isValid() ? _page->processIdentifier() : 0;
}
- (void)_killWebContentProcess
{
if (!_page->isValid())
return;
_page->process().terminate();
}
#if PLATFORM(IOS)
static WebCore::FloatSize activeMinimumLayoutSize(WKWebView *webView, const CGRect& bounds)
{
return WebCore::FloatSize(webView->_overridesMinimumLayoutSize ? webView->_minimumLayoutSizeOverride : bounds.size);
}
static WebCore::FloatSize activeMinimumLayoutSizeForMinimalUI(WKWebView *webView, WebCore::FloatSize minimumLayoutSize)
{
return webView->_overridesMinimumLayoutSizeForMinimalUI ? WebCore::FloatSize(webView->_minimumLayoutSizeOverrideForMinimalUI) : minimumLayoutSize;
}
static WebCore::FloatSize activeMaximumUnobscuredSize(WKWebView *webView, const CGRect& bounds)
{
return WebCore::FloatSize(webView->_overridesMaximumUnobscuredSize ? webView->_maximumUnobscuredSizeOverride : bounds.size);
}
static int32_t activeOrientation(WKWebView *webView)
{
return webView->_overridesInterfaceOrientation ? deviceOrientationForUIInterfaceOrientation(webView->_interfaceOrientationOverride) : webView->_page->deviceOrientation();
}
#endif
- (void)_didRelaunchProcess
{
#if PLATFORM(IOS)
CGRect bounds = self.bounds;
WebCore::FloatSize minimalLayoutSize = activeMinimumLayoutSize(self, bounds);
_page->setViewportConfigurationMinimumLayoutSize(minimalLayoutSize);
_page->setViewportConfigurationMinimumLayoutSizeForMinimalUI(activeMinimumLayoutSizeForMinimalUI(self, minimalLayoutSize));
_page->setMaximumUnobscuredSize(activeMaximumUnobscuredSize(self, bounds));
#endif
}
- (NSData *)_sessionStateData
{
WebKit::SessionState sessionState = _page->sessionState();
// FIXME: This should not use the legacy session state encoder.
return [wrapper(*WebKit::encodeLegacySessionState(sessionState).release().leakRef()) autorelease];
}
- (_WKSessionState *)_sessionState
{
return adoptNS([[_WKSessionState alloc] _initWithSessionState:_page->sessionState()]).autorelease();
}
- (void)_restoreFromSessionStateData:(NSData *)sessionStateData
{
// FIXME: This should not use the legacy session state decoder.
WebKit::SessionState sessionState;
if (!WebKit::decodeLegacySessionState(static_cast<const uint8_t*>(sessionStateData.bytes), sessionStateData.length, sessionState))
return;
if (uint64_t navigationID = _page->restoreFromSessionState(WTF::move(sessionState), true)) {
// FIXME: This is not necessarily always a reload navigation.
_navigationState->createReloadNavigation(navigationID);
}
}
- (WKNavigation *)_restoreSessionState:(_WKSessionState *)sessionState andNavigate:(BOOL)navigate
{
if (uint64_t navigationID = _page->restoreFromSessionState(sessionState->_sessionState, navigate)) {
// FIXME: This is not necessarily always a reload navigation.
return _navigationState->createReloadNavigation(navigationID).autorelease();
}
return nil;
}
- (void)_close
{
_page->close();
}
- (BOOL)_allowsRemoteInspection
{
#if ENABLE(REMOTE_INSPECTOR)
return _page->allowsRemoteInspection();
#else
return NO;
#endif
}
- (void)_setAllowsRemoteInspection:(BOOL)allow
{
#if ENABLE(REMOTE_INSPECTOR)
_page->setAllowsRemoteInspection(allow);
#endif
}
- (BOOL)_addsVisitedLinks
{
return _page->addsVisitedLinks();
}
- (void)_setAddsVisitedLinks:(BOOL)addsVisitedLinks
{
_page->setAddsVisitedLinks(addsVisitedLinks);
}
- (BOOL)_networkRequestsInProgress
{
return _page->pageLoadState().networkRequestsInProgress();
}
static inline WebCore::LayoutMilestones layoutMilestones(_WKRenderingProgressEvents events)
{
WebCore::LayoutMilestones milestones = 0;
if (events & _WKRenderingProgressEventFirstLayout)
milestones |= WebCore::DidFirstLayout;
if (events & _WKRenderingProgressEventFirstPaintWithSignificantArea)
milestones |= WebCore::DidHitRelevantRepaintedObjectsAreaThreshold;
return milestones;
}
- (void)_setObservedRenderingProgressEvents:(_WKRenderingProgressEvents)observedRenderingProgressEvents
{
_observedRenderingProgressEvents = observedRenderingProgressEvents;
_page->listenForLayoutMilestones(layoutMilestones(observedRenderingProgressEvents));
}
- (void)_getMainResourceDataWithCompletionHandler:(void (^)(NSData *, NSError *))completionHandler
{
auto handler = adoptNS([completionHandler copy]);
_page->getMainResourceDataOfFrame(_page->mainFrame(), [handler](API::Data* data, WebKit::CallbackBase::Error error) {
void (^completionHandlerBlock)(NSData *, NSError *) = (void (^)(NSData *, NSError *))handler.get();
if (error != WebKit::CallbackBase::Error::None) {
// FIXME: Pipe a proper error in from the WebPageProxy.
RetainPtr<NSError> error = adoptNS([[NSError alloc] init]);
completionHandlerBlock(nil, error.get());
} else
completionHandlerBlock(wrapper(*data), nil);
});
}
- (void)_getWebArchiveDataWithCompletionHandler:(void (^)(NSData *, NSError *))completionHandler
{
auto handler = adoptNS([completionHandler copy]);
_page->getWebArchiveOfFrame(_page->mainFrame(), [handler](API::Data* data, WebKit::CallbackBase::Error error) {
void (^completionHandlerBlock)(NSData *, NSError *) = (void (^)(NSData *, NSError *))handler.get();
if (error != WebKit::CallbackBase::Error::None) {
// FIXME: Pipe a proper error in from the WebPageProxy.
RetainPtr<NSError> error = adoptNS([[NSError alloc] init]);
completionHandlerBlock(nil, error.get());
} else
completionHandlerBlock(wrapper(*data), nil);
});
}
- (_WKPaginationMode)_paginationMode
{
switch (_page->paginationMode()) {
case WebCore::Pagination::Unpaginated:
return _WKPaginationModeUnpaginated;
case WebCore::Pagination::LeftToRightPaginated:
return _WKPaginationModeLeftToRight;
case WebCore::Pagination::RightToLeftPaginated:
return _WKPaginationModeRightToLeft;
case WebCore::Pagination::TopToBottomPaginated:
return _WKPaginationModeTopToBottom;
case WebCore::Pagination::BottomToTopPaginated:
return _WKPaginationModeBottomToTop;
}
ASSERT_NOT_REACHED();
return _WKPaginationModeUnpaginated;
}
- (void)_setPaginationMode:(_WKPaginationMode)paginationMode
{
WebCore::Pagination::Mode mode;
switch (paginationMode) {
case _WKPaginationModeUnpaginated:
mode = WebCore::Pagination::Unpaginated;
break;
case _WKPaginationModeLeftToRight:
mode = WebCore::Pagination::LeftToRightPaginated;
break;
case _WKPaginationModeRightToLeft:
mode = WebCore::Pagination::RightToLeftPaginated;
break;
case _WKPaginationModeTopToBottom:
mode = WebCore::Pagination::TopToBottomPaginated;
break;
case _WKPaginationModeBottomToTop:
mode = WebCore::Pagination::BottomToTopPaginated;
break;
default:
return;
}
_page->setPaginationMode(mode);
}
- (BOOL)_paginationBehavesLikeColumns
{
return _page->paginationBehavesLikeColumns();
}
- (void)_setPaginationBehavesLikeColumns:(BOOL)behavesLikeColumns
{
_page->setPaginationBehavesLikeColumns(behavesLikeColumns);
}
- (CGFloat)_pageLength
{
return _page->pageLength();
}
- (void)_setPageLength:(CGFloat)pageLength
{
_page->setPageLength(pageLength);
}
- (CGFloat)_gapBetweenPages
{
return _page->gapBetweenPages();
}
- (void)_setGapBetweenPages:(CGFloat)gapBetweenPages
{
_page->setGapBetweenPages(gapBetweenPages);
}
- (NSUInteger)_pageCount
{
return _page->pageCount();
}
- (BOOL)_supportsTextZoom
{
return _page->supportsTextZoom();
}
- (double)_textZoomFactor
{
return _page->textZoomFactor();
}
- (void)_setTextZoomFactor:(double)zoomFactor
{
_page->setTextZoomFactor(zoomFactor);
}
- (double)_pageZoomFactor
{
return _page->pageZoomFactor();
}
- (void)_setPageZoomFactor:(double)zoomFactor
{
_page->setPageZoomFactor(zoomFactor);
}
- (id <_WKFindDelegate>)_findDelegate
{
return [static_cast<WebKit::FindClient&>(_page->findClient()).delegate().leakRef() autorelease];
}
- (void)_setFindDelegate:(id<_WKFindDelegate>)findDelegate
{
static_cast<WebKit::FindClient&>(_page->findClient()).setDelegate(findDelegate);
}
static inline WebKit::FindOptions toFindOptions(_WKFindOptions wkFindOptions)
{
unsigned findOptions = 0;
if (wkFindOptions & _WKFindOptionsCaseInsensitive)
findOptions |= WebKit::FindOptionsCaseInsensitive;
if (wkFindOptions & _WKFindOptionsAtWordStarts)
findOptions |= WebKit::FindOptionsAtWordStarts;
if (wkFindOptions & _WKFindOptionsTreatMedialCapitalAsWordStart)
findOptions |= WebKit::FindOptionsTreatMedialCapitalAsWordStart;
if (wkFindOptions & _WKFindOptionsBackwards)
findOptions |= WebKit::FindOptionsBackwards;
if (wkFindOptions & _WKFindOptionsWrapAround)
findOptions |= WebKit::FindOptionsWrapAround;
if (wkFindOptions & _WKFindOptionsShowOverlay)
findOptions |= WebKit::FindOptionsShowOverlay;
if (wkFindOptions & _WKFindOptionsShowFindIndicator)
findOptions |= WebKit::FindOptionsShowFindIndicator;
if (wkFindOptions & _WKFindOptionsShowHighlight)
findOptions |= WebKit::FindOptionsShowHighlight;
if (wkFindOptions & _WKFindOptionsDetermineMatchIndex)
findOptions |= WebKit::FindOptionsDetermineMatchIndex;
return static_cast<WebKit::FindOptions>(findOptions);
}
- (void)_countStringMatches:(NSString *)string options:(_WKFindOptions)options maxCount:(NSUInteger)maxCount
{
_page->countStringMatches(string, toFindOptions(options), maxCount);
}
- (void)_findString:(NSString *)string options:(_WKFindOptions)options maxCount:(NSUInteger)maxCount
{
_page->findString(string, toFindOptions(options), maxCount);
}
- (void)_hideFindUI
{
_page->hideFindUI();
}
- (id <_WKFormDelegate>)_formDelegate
{
return _formDelegate.getAutoreleased();
}
- (void)_setFormDelegate:(id <_WKFormDelegate>)formDelegate
{
_formDelegate = formDelegate;
class FormClient : public API::FormClient {
public:
explicit FormClient(WKWebView *webView)
: m_webView(webView)
{
}
virtual ~FormClient() { }
virtual bool willSubmitForm(WebKit::WebPageProxy*, WebKit::WebFrameProxy*, WebKit::WebFrameProxy* sourceFrame, const Vector<std::pair<WTF::String, WTF::String>>& textFieldValues, API::Object* userData, WebKit::WebFormSubmissionListenerProxy* listener) override
{
if (userData && userData->type() != API::Object::Type::Data) {
ASSERT(!userData || userData->type() == API::Object::Type::Data);
m_webView->_page->process().connection()->markCurrentlyDispatchedMessageAsInvalid();
return false;
}
auto formDelegate = m_webView->_formDelegate.get();
if (![formDelegate respondsToSelector:@selector(_webView:willSubmitFormValues:userObject:submissionHandler:)])
return false;
auto valueMap = adoptNS([[NSMutableDictionary alloc] initWithCapacity:textFieldValues.size()]);
for (const auto& pair : textFieldValues)
[valueMap setObject:pair.second forKey:pair.first];
NSObject <NSSecureCoding> *userObject = nil;
if (API::Data* data = static_cast<API::Data*>(userData)) {
auto nsData = adoptNS([[NSData alloc] initWithBytesNoCopy:const_cast<void*>(static_cast<const void*>(data->bytes())) length:data->size() freeWhenDone:NO]);
auto unarchiver = adoptNS([[NSKeyedUnarchiver alloc] initForReadingWithData:nsData.get()]);
[unarchiver setRequiresSecureCoding:YES];
@try {
userObject = [unarchiver decodeObjectOfClass:[NSObject class] forKey:@"userObject"];
} @catch (NSException *exception) {
LOG_ERROR("Failed to decode user data: %@", exception);
}
}
RefPtr<WebKit::CompletionHandlerCallChecker> checker = WebKit::CompletionHandlerCallChecker::create(formDelegate.get(), @selector(_webView:willSubmitFormValues:userObject:submissionHandler:));
[formDelegate _webView:m_webView willSubmitFormValues:valueMap.get() userObject:userObject submissionHandler:[listener, checker] {
checker->didCallCompletionHandler();
listener->continueSubmission();
}];
return true;
}
private:
WKWebView *m_webView;
};
if (formDelegate)
_page->setFormClient(std::make_unique<FormClient>(self));
else
_page->setFormClient(nullptr);
}
- (BOOL)_isDisplayingStandaloneImageDocument
{
if (auto* mainFrame = _page->mainFrame())
return mainFrame->isDisplayingStandaloneImageDocument();
return NO;
}
- (BOOL)_isShowingNavigationGestureSnapshot
{
return _page->isShowingNavigationGestureSnapshot();
}
#pragma mark iOS-specific methods
#if PLATFORM(IOS)
- (CGSize)_minimumLayoutSizeOverride
{
ASSERT(_overridesMinimumLayoutSize);
return _minimumLayoutSizeOverride;
}
- (void)_setMinimumLayoutSizeOverride:(CGSize)minimumLayoutSizeOverride
{
_overridesMinimumLayoutSize = YES;
if (CGSizeEqualToSize(_minimumLayoutSizeOverride, minimumLayoutSizeOverride))
return;
_minimumLayoutSizeOverride = minimumLayoutSizeOverride;
if (_dynamicViewportUpdateMode == DynamicViewportUpdateMode::NotResizing)
_page->setViewportConfigurationMinimumLayoutSize(WebCore::FloatSize(minimumLayoutSizeOverride));
}
- (CGSize)_minimumLayoutSizeOverrideForMinimalUI
{
ASSERT(_overridesMinimumLayoutSizeForMinimalUI);
return _minimumLayoutSizeOverrideForMinimalUI;
}
- (void)_setMinimumLayoutSizeOverrideForMinimalUI:(CGSize)size
{
_overridesMinimumLayoutSizeForMinimalUI = YES;
if (CGSizeEqualToSize(_minimumLayoutSizeOverrideForMinimalUI, size))
return;
_minimumLayoutSizeOverrideForMinimalUI = size;
if (_dynamicViewportUpdateMode == DynamicViewportUpdateMode::NotResizing)
_page->setViewportConfigurationMinimumLayoutSizeForMinimalUI(WebCore::FloatSize(size));
}
- (UIEdgeInsets)_obscuredInsets
{
return _obscuredInsets;
}
- (void)_setObscuredInsets:(UIEdgeInsets)obscuredInsets
{
ASSERT(obscuredInsets.top >= 0);
ASSERT(obscuredInsets.left >= 0);
ASSERT(obscuredInsets.bottom >= 0);
ASSERT(obscuredInsets.right >= 0);
_haveSetObscuredInsets = YES;
if (UIEdgeInsetsEqualToEdgeInsets(_obscuredInsets, obscuredInsets))
return;
_obscuredInsets = obscuredInsets;
[self _updateVisibleContentRects];
}
- (void)_setInterfaceOrientationOverride:(UIInterfaceOrientation)interfaceOrientation
{
if (!_overridesInterfaceOrientation)
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIWindowDidRotateNotification object:nil];
_overridesInterfaceOrientation = YES;
if (interfaceOrientation == _interfaceOrientationOverride)
return;
_interfaceOrientationOverride = interfaceOrientation;
if (_dynamicViewportUpdateMode == DynamicViewportUpdateMode::NotResizing)
_page->setDeviceOrientation(deviceOrientationForUIInterfaceOrientation(_interfaceOrientationOverride));
}
- (UIInterfaceOrientation)_interfaceOrientationOverride
{
ASSERT(_overridesInterfaceOrientation);
return _interfaceOrientationOverride;
}
- (CGSize)_maximumUnobscuredSizeOverride
{
ASSERT(_overridesMaximumUnobscuredSize);
return _maximumUnobscuredSizeOverride;
}
- (void)_setMaximumUnobscuredSizeOverride:(CGSize)size
{
ASSERT(size.width <= self.bounds.size.width && size.height <= self.bounds.size.height);
_overridesMaximumUnobscuredSize = YES;
if (CGSizeEqualToSize(_maximumUnobscuredSizeOverride, size))
return;
_maximumUnobscuredSizeOverride = size;
if (_dynamicViewportUpdateMode == DynamicViewportUpdateMode::NotResizing)
_page->setMaximumUnobscuredSize(WebCore::FloatSize(size));
}
- (void)_setBackgroundExtendsBeyondPage:(BOOL)backgroundExtends
{
_page->setBackgroundExtendsBeyondPage(backgroundExtends);
}
- (BOOL)_backgroundExtendsBeyondPage
{
return _page->backgroundExtendsBeyondPage();
}
- (void)_beginInteractiveObscuredInsetsChange
{
ASSERT(!_isChangingObscuredInsetsInteractively);
_isChangingObscuredInsetsInteractively = YES;
}
- (void)_endInteractiveObscuredInsetsChange
{
ASSERT(_isChangingObscuredInsetsInteractively);
_isChangingObscuredInsetsInteractively = NO;
[self _updateVisibleContentRects];
}
- (void)_beginAnimatedResizeWithUpdates:(void (^)(void))updateBlock
{
if (_customContentView || !_hasCommittedLoadForMainFrame) {
updateBlock();
return;
}
_dynamicViewportUpdateMode = DynamicViewportUpdateMode::ResizingWithAnimation;
CGRect oldBounds = self.bounds;
WebCore::FloatSize oldMinimumLayoutSize = activeMinimumLayoutSize(self, oldBounds);
WebCore::FloatSize oldMinimumLayoutSizeForMinimalUI = activeMinimumLayoutSizeForMinimalUI(self, oldMinimumLayoutSize);
WebCore::FloatSize oldMaximumUnobscuredSize = activeMaximumUnobscuredSize(self, oldBounds);
int32_t oldOrientation = activeOrientation(self);
UIEdgeInsets oldObscuredInsets = _obscuredInsets;
WebCore::FloatRect oldUnobscuredContentRect = _page->unobscuredContentRect();
updateBlock();
CGRect newBounds = self.bounds;
WebCore::FloatSize newMinimumLayoutSize = activeMinimumLayoutSize(self, newBounds);
WebCore::FloatSize newMinimumLayoutSizeForMinimalUI = activeMinimumLayoutSizeForMinimalUI(self, newMinimumLayoutSize);
WebCore::FloatSize newMaximumUnobscuredSize = activeMaximumUnobscuredSize(self, newBounds);
int32_t newOrientation = activeOrientation(self);
UIEdgeInsets newObscuredInsets = _obscuredInsets;
if (CGRectEqualToRect(oldBounds, newBounds)
&& oldMinimumLayoutSize == newMinimumLayoutSize
&& oldMinimumLayoutSizeForMinimalUI == newMinimumLayoutSizeForMinimalUI
&& oldMaximumUnobscuredSize == newMaximumUnobscuredSize
&& oldOrientation == newOrientation
&& UIEdgeInsetsEqualToEdgeInsets(oldObscuredInsets, newObscuredInsets)) {
_dynamicViewportUpdateMode = DynamicViewportUpdateMode::NotResizing;
[self _updateVisibleContentRects];
return;
}
_resizeAnimationTransformAdjustments = CATransform3DIdentity;
NSUInteger indexOfContentView = [[_scrollView subviews] indexOfObject:_contentView.get()];
_resizeAnimationView = adoptNS([[UIView alloc] init]);
[_scrollView insertSubview:_resizeAnimationView.get() atIndex:indexOfContentView];
[_resizeAnimationView addSubview:_contentView.get()];
[_resizeAnimationView addSubview:[_contentView unscaledView]];
CGSize contentSizeInContentViewCoordinates = [_contentView bounds].size;
[_scrollView setMinimumZoomScale:std::min(newMinimumLayoutSize.width() / contentSizeInContentViewCoordinates.width, [_scrollView minimumZoomScale])];
[_scrollView setMaximumZoomScale:std::max(newMinimumLayoutSize.width() / contentSizeInContentViewCoordinates.width, [_scrollView maximumZoomScale])];
// Compute the new scale to keep the current content width in the scrollview.
CGFloat oldWebViewWidthInContentViewCoordinates = oldUnobscuredContentRect.width();
CGFloat visibleContentViewWidthInContentCoordinates = std::min(contentSizeInContentViewCoordinates.width, oldWebViewWidthInContentViewCoordinates);
CGFloat targetScale = newMinimumLayoutSize.width() / visibleContentViewWidthInContentCoordinates;
CGFloat resizeAnimationViewAnimationScale = targetScale / contentZoomScale(self);
[_resizeAnimationView setTransform:CGAffineTransformMakeScale(resizeAnimationViewAnimationScale, resizeAnimationViewAnimationScale)];
// Compute a new position to keep the content centered.
CGPoint originalContentCenter = oldUnobscuredContentRect.center();
CGPoint originalContentCenterInSelfCoordinates = [self convertPoint:originalContentCenter fromView:_contentView.get()];
CGRect futureUnobscuredRectInSelfCoordinates = UIEdgeInsetsInsetRect(newBounds, _obscuredInsets);
CGPoint futureUnobscuredRectCenterInSelfCoordinates = CGPointMake(futureUnobscuredRectInSelfCoordinates.origin.x + futureUnobscuredRectInSelfCoordinates.size.width / 2, futureUnobscuredRectInSelfCoordinates.origin.y + futureUnobscuredRectInSelfCoordinates.size.height / 2);
CGPoint originalContentOffset = [_scrollView contentOffset];
CGPoint contentOffset = originalContentOffset;
contentOffset.x += (originalContentCenterInSelfCoordinates.x - futureUnobscuredRectCenterInSelfCoordinates.x);
contentOffset.y += (originalContentCenterInSelfCoordinates.y - futureUnobscuredRectCenterInSelfCoordinates.y);
// Limit the new offset within the scrollview, we do not want to rubber band programmatically.
CGSize futureContentSizeInSelfCoordinates = CGSizeMake(contentSizeInContentViewCoordinates.width * targetScale, contentSizeInContentViewCoordinates.height * targetScale);
CGFloat maxHorizontalOffset = futureContentSizeInSelfCoordinates.width - newBounds.size.width + _obscuredInsets.right;
contentOffset.x = std::min(contentOffset.x, maxHorizontalOffset);
CGFloat maxVerticalOffset = futureContentSizeInSelfCoordinates.height - newBounds.size.height + _obscuredInsets.bottom;
contentOffset.y = std::min(contentOffset.y, maxVerticalOffset);
contentOffset.x = std::max(contentOffset.x, -_obscuredInsets.left);
contentOffset.y = std::max(contentOffset.y, -_obscuredInsets.top);
// Make the top/bottom edges "sticky" within 1 pixel.
if (oldUnobscuredContentRect.maxY() > contentSizeInContentViewCoordinates.height - 1)
contentOffset.y = maxVerticalOffset;
if (oldUnobscuredContentRect.y() < 1)
contentOffset.y = -_obscuredInsets.top;
// FIXME: if we have content centered after double tap to zoom, we should also try to keep that rect in view.
[_scrollView setContentSize:roundScrollViewContentSize(*_page, futureContentSizeInSelfCoordinates)];
[_scrollView setContentOffset:contentOffset];
CGRect visibleRectInContentCoordinates = [self convertRect:newBounds toView:_contentView.get()];
CGRect unobscuredRectInContentCoordinates = [self convertRect:futureUnobscuredRectInSelfCoordinates toView:_contentView.get()];
_page->dynamicViewportSizeUpdate(newMinimumLayoutSize, newMinimumLayoutSizeForMinimalUI, newMaximumUnobscuredSize, visibleRectInContentCoordinates, unobscuredRectInContentCoordinates, futureUnobscuredRectInSelfCoordinates, targetScale, newOrientation);
if (WebKit::DrawingAreaProxy* drawingArea = _page->drawingArea())
drawingArea->setSize(WebCore::IntSize(newBounds.size), WebCore::IntSize(), WebCore::IntSize());
}
- (void)_endAnimatedResize
{
if (_dynamicViewportUpdateMode == DynamicViewportUpdateMode::NotResizing)
return;
_page->synchronizeDynamicViewportUpdate();
NSUInteger indexOfResizeAnimationView = [[_scrollView subviews] indexOfObject:_resizeAnimationView.get()];
[_scrollView insertSubview:_contentView.get() atIndex:indexOfResizeAnimationView];
[_scrollView insertSubview:[_contentView unscaledView] atIndex:indexOfResizeAnimationView + 1];
CALayer *contentViewLayer = [_contentView layer];
CGFloat adjustmentScale = _resizeAnimationTransformAdjustments.m11;
contentViewLayer.sublayerTransform = CATransform3DIdentity;
CGFloat animatingScaleTarget = [[_resizeAnimationView layer] transform].m11;
CALayer *contentLayer = [_contentView layer];
CATransform3D contentLayerTransform = contentLayer.transform;
CGFloat currentScale = [[_resizeAnimationView layer] transform].m11 * contentLayerTransform.m11;
// We cannot use [UIScrollView setZoomScale:] directly because the UIScrollView delegate would get a callback with
// an invalid contentOffset. The real content offset is only set below.
// Since there is no public API for setting both the zoomScale and the contentOffset, we set the zoomScale manually
// on the zoom layer and then only change the contentOffset.
CGFloat adjustedScale = adjustmentScale * currentScale;
contentLayerTransform.m11 = adjustedScale;
contentLayerTransform.m22 = adjustedScale;
contentLayer.transform = contentLayerTransform;
CGPoint currentScrollOffset = [_scrollView contentOffset];
double horizontalScrollAdjustement = _resizeAnimationTransformAdjustments.m41 * animatingScaleTarget;
double verticalScrollAdjustment = _resizeAnimationTransformAdjustments.m42 * animatingScaleTarget;
[_scrollView setContentSize:roundScrollViewContentSize(*_page, [_contentView frame].size)];
[_scrollView setContentOffset:CGPointMake(currentScrollOffset.x - horizontalScrollAdjustement, currentScrollOffset.y - verticalScrollAdjustment)];
[_resizeAnimationView removeFromSuperview];
_resizeAnimationView = nil;
_resizeAnimationTransformAdjustments = CATransform3DIdentity;
_dynamicViewportUpdateMode = DynamicViewportUpdateMode::NotResizing;
[_contentView setHidden:NO];
[self _updateVisibleContentRects];
}
- (void)_resizeWhileHidingContentWithUpdates:(void (^)(void))updateBlock
{
[self _beginAnimatedResizeWithUpdates:updateBlock];
if (_dynamicViewportUpdateMode == DynamicViewportUpdateMode::ResizingWithAnimation) {
[_contentView setHidden:YES];
_dynamicViewportUpdateMode = DynamicViewportUpdateMode::ResizingWithDocumentHidden;
}
}
- (void)_setOverlaidAccessoryViewsInset:(CGSize)inset
{
[_customContentView web_setOverlaidAccessoryViewsInset:inset];
}
- (void)_snapshotRect:(CGRect)rectInViewCoordinates intoImageOfWidth:(CGFloat)imageWidth completionHandler:(void(^)(CGImageRef))completionHandler
{
CGRect snapshotRectInContentCoordinates = [self convertRect:rectInViewCoordinates toView:_contentView.get()];
CGFloat imageHeight = imageWidth / snapshotRectInContentCoordinates.size.width * snapshotRectInContentCoordinates.size.height;
CGSize imageSize = CGSizeMake(imageWidth, imageHeight);
void(^copiedCompletionHandler)(CGImageRef) = [completionHandler copy];
_page->takeSnapshot(WebCore::enclosingIntRect(snapshotRectInContentCoordinates), WebCore::expandedIntSize(WebCore::FloatSize(imageSize)), WebKit::SnapshotOptionsExcludeDeviceScaleFactor, [=](const WebKit::ShareableBitmap::Handle& imageHandle, WebKit::CallbackBase::Error) {
if (imageHandle.isNull()) {
copiedCompletionHandler(nullptr);
[copiedCompletionHandler release];
return;
}
RefPtr<WebKit::ShareableBitmap> bitmap = WebKit::ShareableBitmap::create(imageHandle, WebKit::SharedMemory::ReadOnly);
if (!bitmap) {
copiedCompletionHandler(nullptr);
[copiedCompletionHandler release];
return;
}
RetainPtr<CGImageRef> cgImage;
cgImage = bitmap->makeCGImage();
copiedCompletionHandler(cgImage.get());
[copiedCompletionHandler release];
});
}
- (void)_overrideLayoutParametersWithMinimumLayoutSize:(CGSize)minimumLayoutSize minimumLayoutSizeForMinimalUI:(CGSize)minimumLayoutSizeForMinimalUI maximumUnobscuredSizeOverride:(CGSize)maximumUnobscuredSizeOverride
{
// FIXME: After Safari is updated to use this function instead of setting the parameters separately, we should remove
// the individual setters and send a single message to send everything at once to the WebProcess.
self._minimumLayoutSizeOverride = minimumLayoutSize;
self._minimumLayoutSizeOverrideForMinimalUI = minimumLayoutSizeForMinimalUI;
self._maximumUnobscuredSizeOverride = maximumUnobscuredSizeOverride;
}
- (UIView *)_viewForFindUI
{
return [self viewForZoomingInScrollView:[self scrollView]];
}
- (BOOL)_isDisplayingPDF
{
return [_customContentView isKindOfClass:[WKPDFView class]];
}
- (NSData *)_dataForDisplayedPDF
{
if (![self _isDisplayingPDF])
return nil;
CGPDFDocumentRef pdfDocument = [(WKPDFView *)_customContentView pdfDocument];
return [(NSData *)CGDataProviderCopyData(CGPDFDocumentGetDataProvider(pdfDocument)) autorelease];
}
- (NSString *)_suggestedFilenameForDisplayedPDF
{
if (![self _isDisplayingPDF])
return nil;
return [(WKPDFView *)_customContentView.get() suggestedFilename];
}
- (CGFloat)_viewportMetaTagWidth
{
return _viewportMetaTagWidth;
}
- (_WKWebViewPrintFormatter *)_webViewPrintFormatter
{
UIViewPrintFormatter *viewPrintFormatter = self.viewPrintFormatter;
ASSERT([viewPrintFormatter isKindOfClass:[_WKWebViewPrintFormatter class]]);
return (_WKWebViewPrintFormatter *)viewPrintFormatter;
}
#else
#pragma mark - OS X-specific methods
- (NSColor *)_pageExtendedBackgroundColor
{
WebCore::Color color = _page->pageExtendedBackgroundColor();
if (!color.isValid())
return nil;
return nsColor(color);
}
- (BOOL)_drawsTransparentBackground
{
return _page->drawsTransparentBackground();
}
- (void)_setDrawsTransparentBackground:(BOOL)drawsTransparentBackground
{
_page->setDrawsTransparentBackground(drawsTransparentBackground);
}
- (void)_setTopContentInset:(CGFloat)contentInset
{
[_wkView _setTopContentInset:contentInset];
}
- (CGFloat)_topContentInset
{
return [_wkView _topContentInset];
}
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 101000
- (void)_setAutomaticallyAdjustsContentInsets:(BOOL)automaticallyAdjustsContentInsets
{
[_wkView _setAutomaticallyAdjustsContentInsets:automaticallyAdjustsContentInsets];
}
- (BOOL)_automaticallyAdjustsContentInsets
{
return [_wkView _automaticallyAdjustsContentInsets];
}
#endif
#endif
@end
#if !TARGET_OS_IPHONE
@implementation WKWebView (WKIBActions)
- (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)item
{
SEL action = item.action;
if (action == @selector(goBack:))
return !!_page->backForwardList().backItem();
if (action == @selector(goForward:))
return !!_page->backForwardList().forwardItem();
if (action == @selector(stopLoading:)) {
// FIXME: Return no if we're stopped.
return YES;
}
if (action == @selector(reload:) || action == @selector(reloadFromOrigin:)) {
// FIXME: Return no if we're loading.
return YES;
}
return NO;
}
- (IBAction)goBack:(id)sender
{
[self goBack];
}
- (IBAction)goForward:(id)sender
{
[self goForward];
}
- (IBAction)reload:(id)sender
{
[self reload];
}
- (IBAction)reloadFromOrigin:(id)sender
{
[self reloadFromOrigin];
}
- (IBAction)stopLoading:(id)sender
{
_page->stopLoading();
}
@end
#endif
#if PLATFORM(IOS)
@implementation WKWebView (_WKWebViewPrintFormatter)
- (Class)_printFormatterClass
{
return [_WKWebViewPrintFormatter class];
}
- (NSInteger)_computePageCountAndStartDrawingToPDFForFrame:(_WKFrameHandle *)frame printInfo:(const WebKit::PrintInfo&)printInfo firstPage:(uint32_t)firstPage computedTotalScaleFactor:(double&)totalScaleFactor
{
if ([self _isDisplayingPDF])
return CGPDFDocumentGetNumberOfPages([(WKPDFView *)_customContentView pdfDocument]);
_pageIsPrintingToPDF = YES;
Vector<WebCore::IntRect> pageRects;
uint64_t frameID = frame ? frame._frameID : _page->mainFrame()->frameID();
if (!_page->sendSync(Messages::WebPage::ComputePagesForPrintingAndStartDrawingToPDF(frameID, printInfo, firstPage), Messages::WebPage::ComputePagesForPrintingAndStartDrawingToPDF::Reply(pageRects, totalScaleFactor)))
return 0;
return pageRects.size();
}
- (void)_endPrinting
{
_pageIsPrintingToPDF = NO;
_printedDocument = nullptr;
_page->send(Messages::WebPage::EndPrinting());
}
// FIXME: milliseconds::max() overflows when converted to nanoseconds, causing condition_variable::wait_for() to believe
// a timeout occurred on any spurious wakeup. Use nanoseconds::max() (converted to ms) to avoid this. We should perhaps
// change waitForAndDispatchImmediately() to take nanoseconds to avoid this issue.
static constexpr std::chrono::milliseconds didFinishLoadingTimeout = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::nanoseconds::max());
- (CGPDFDocumentRef)_printedDocument
{
if ([self _isDisplayingPDF]) {
ASSERT(!_pageIsPrintingToPDF);
return [(WKPDFView *)_customContentView pdfDocument];
}
if (_pageIsPrintingToPDF) {
if (!_page->process().connection()->waitForAndDispatchImmediately<Messages::WebPageProxy::DidFinishDrawingPagesToPDF>(_page->pageID(), didFinishLoadingTimeout)) {
ASSERT_NOT_REACHED();
return nullptr;
}
ASSERT(!_pageIsPrintingToPDF);
}
return _printedDocument.get();
}
- (void)_setPrintedDocument:(CGPDFDocumentRef)printedDocument
{
if (!_pageIsPrintingToPDF)
return;
ASSERT(![self _isDisplayingPDF]);
_printedDocument = printedDocument;
_pageIsPrintingToPDF = NO;
}
@end
#endif
#endif // WK_API_ENABLED