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git-subtree-dir: submodules/AsyncDisplayKit git-subtree-mainline: d06f423e0ed3df1fed9bd10d79ee312a9179b632 git-subtree-split: 02bedc12816e251ad71777f9d2578329b6d2bef6
99 lines
2.6 KiB
Plaintext
99 lines
2.6 KiB
Plaintext
//
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// ASTipsWindow.mm
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// Texture
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//
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// Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
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// Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc. All rights reserved.
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// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
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//
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#import <AsyncDisplayKit/ASTipsWindow.h>
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#if AS_ENABLE_TIPS
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#import <AsyncDisplayKit/ASDisplayNodeTipState.h>
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#import <AsyncDisplayKit/ASTipNode.h>
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#import <AsyncDisplayKit/ASTip.h>
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#import <AsyncDisplayKit/AsyncDisplayKit+Tips.h>
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@interface ASTipsWindow ()
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@property (nonatomic, readonly) ASDisplayNode *node;
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@end
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@implementation ASTipsWindow
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- (instancetype)initWithFrame:(CGRect)frame
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{
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if (self = [super initWithFrame:frame]) {
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/**
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* UIKit throws an exception if you don't add a root view controller to a window,
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* but if the window isn't key, then it doesn't manage the root view controller correctly!
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*
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* So we set a dummy root view controller and hide it.
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*/
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self.rootViewController = [UIViewController new];
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self.rootViewController.view.hidden = YES;
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_node = [[ASDisplayNode alloc] init];
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[self addSubnode:_node];
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self.windowLevel = UIWindowLevelNormal + 1;
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self.opaque = NO;
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}
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return self;
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}
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- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
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{
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UIView *result = [super hitTest:point withEvent:event];
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// Ignore touches unless they hit one of my node's subnodes
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if (result == _node.view) {
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return nil;
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}
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return result;
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}
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- (void)setMainWindow:(UIWindow *)mainWindow
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{
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_mainWindow = mainWindow;
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for (ASDisplayNode *node in _node.subnodes) {
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[node removeFromSupernode];
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}
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}
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- (void)didTapTipNode:(ASTipNode *)tipNode
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{
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ASDisplayNode.tipDisplayBlock(tipNode.tip.node, tipNode.tip.text);
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}
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- (void)layoutSubviews
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{
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[super layoutSubviews];
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_node.frame = self.bounds;
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// Ensure the main window is laid out first.
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[self.mainWindow layoutIfNeeded];
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NSMutableSet *tipNodesToRemove = [NSMutableSet setWithArray:_node.subnodes];
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for (ASDisplayNodeTipState *tipState in [_nodeToTipStates objectEnumerator]) {
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ASDisplayNode *node = tipState.node;
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ASTipNode *tipNode = tipState.tipNode;
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[tipNodesToRemove removeObject:tipNode];
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CGRect rect = node.bounds;
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rect = [node.view convertRect:rect toView:nil];
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rect = [self convertRect:rect fromView:nil];
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tipNode.frame = rect;
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if (tipNode.supernode != _node) {
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[_node addSubnode:tipNode];
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}
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}
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// Clean up any tip nodes whose target nodes have disappeared.
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for (ASTipNode *tipNode in tipNodesToRemove) {
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[tipNode removeFromSupernode];
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}
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}
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@end
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#endif // AS_ENABLE_TIPS
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