| /* |
| * Copyright (C) 2020 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 "WKScrollViewMac.h" |
| |
| #if PLATFORM(MAC) |
| |
| #import <wtf/WeakObjCPtr.h> |
| |
| @implementation WKScrollView { |
| WeakObjCPtr<id <WKScrollViewDelegate>> _delegate; |
| } |
| |
| + (BOOL)isCompatibleWithResponsiveScrolling |
| { |
| return NO; |
| } |
| |
| - (instancetype)initWithFrame:(NSRect)frame |
| { |
| self = [super initWithFrame:frame]; |
| if (!self) |
| return nil; |
| |
| self.allowsMagnification = YES; |
| self.minMagnification = 1; // Matches ViewGestureController. |
| self.maxMagnification = 3; |
| |
| [self.contentView setPostsBoundsChangedNotifications:YES]; |
| [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(boundsDidChange:) name:NSViewBoundsDidChangeNotification object:self.contentView]; |
| return self; |
| } |
| |
| - (void)dealloc |
| { |
| [[NSNotificationCenter defaultCenter] removeObserver:self]; |
| [super dealloc]; |
| } |
| |
| - (id <WKScrollViewDelegate>)delegate |
| { |
| return _delegate.getAutoreleased(); |
| } |
| |
| - (void)setDelegate:(id <WKScrollViewDelegate>)delegate |
| { |
| _delegate = delegate; |
| } |
| |
| - (CGPoint)contentOffset |
| { |
| return self.contentView.bounds.origin; |
| } |
| |
| - (void)boundsDidChange:(NSNotification *)notification |
| { |
| auto retainedDelegate = _delegate.get(); |
| if (retainedDelegate) |
| [retainedDelegate scrollViewDidScroll:self]; |
| } |
| |
| - (void)setContentInsets:(NSEdgeInsets)insets |
| { |
| BOOL insetsChanged = !NSEdgeInsetsEqual(insets, self.contentInsets); |
| [super setContentInsets:insets]; |
| if (insetsChanged) { |
| auto retainedDelegate = _delegate.get(); |
| if (retainedDelegate) |
| [retainedDelegate scrollViewContentInsetsDidChange:self]; |
| } |
| } |
| |
| @end |
| |
| #endif // PLATFORM(MAC) |