mirror of
https://github.com/Swiftgram/Telegram-iOS.git
synced 2025-09-06 12:43:58 +00:00
465abb1ded
* [License] Simplify the Texture license to be pure Apache 2 (removing ASDK-Licenses) With permission of the Facebook Open Source team, we are simplifying the Texture license so that clients can rely on the Apache 2 terms that most of Texture is already covered by. This means that code originally forked from AsyncDisplayKit will be re-licensed from "BSD 3-clause + PATENTS v2" to Apache 2 without a PATENTS file. After getting confirmation that the updates to these core files look good, we'll propagate this new license header to all files (in this same PR) and get sign-off from all parties before landing. * [License] Update all Texture source files to be pure Apache 2. * Changelog entry for Apache 2 license update. * Revert "[License] Update all Texture source files to be pure Apache 2." This reverts commit ffa0fbbba9717d871dd16c4b07539f2f8208fc2b. * [License] Update all Texture source files to be pure Apache 2, maintaining copyrights. * [License] Update CONTRIBUTING, README, Podspec & Dangerfile.
102 lines
3.1 KiB
Plaintext
102 lines
3.1 KiB
Plaintext
//
|
|
// ASAbsoluteLayoutSpec.mm
|
|
// Texture
|
|
//
|
|
// Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
|
|
// Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc. All rights reserved.
|
|
// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
|
|
#import <AsyncDisplayKit/ASAbsoluteLayoutSpec.h>
|
|
|
|
#import <AsyncDisplayKit/ASLayout.h>
|
|
#import <AsyncDisplayKit/ASLayoutSpec+Subclasses.h>
|
|
#import <AsyncDisplayKit/ASLayoutSpecUtilities.h>
|
|
#import <AsyncDisplayKit/ASLayoutElementStylePrivate.h>
|
|
|
|
#pragma mark - ASAbsoluteLayoutSpec
|
|
|
|
@implementation ASAbsoluteLayoutSpec
|
|
|
|
#pragma mark - Class
|
|
|
|
+ (instancetype)absoluteLayoutSpecWithChildren:(NSArray *)children NS_RETURNS_RETAINED
|
|
{
|
|
return [[self alloc] initWithChildren:children];
|
|
}
|
|
|
|
+ (instancetype)absoluteLayoutSpecWithSizing:(ASAbsoluteLayoutSpecSizing)sizing children:(NSArray<id<ASLayoutElement>> *)children NS_RETURNS_RETAINED
|
|
{
|
|
return [[self alloc] initWithSizing:sizing children:children];
|
|
}
|
|
|
|
#pragma mark - Lifecycle
|
|
|
|
- (instancetype)init
|
|
{
|
|
return [self initWithChildren:nil];
|
|
}
|
|
|
|
- (instancetype)initWithChildren:(NSArray *)children
|
|
{
|
|
return [self initWithSizing:ASAbsoluteLayoutSpecSizingDefault children:children];
|
|
}
|
|
|
|
- (instancetype)initWithSizing:(ASAbsoluteLayoutSpecSizing)sizing children:(NSArray<id<ASLayoutElement>> *)children
|
|
{
|
|
if (!(self = [super init])) {
|
|
return nil;
|
|
}
|
|
|
|
_sizing = sizing;
|
|
self.children = children;
|
|
|
|
return self;
|
|
}
|
|
|
|
#pragma mark - ASLayoutSpec
|
|
|
|
- (ASLayout *)calculateLayoutThatFits:(ASSizeRange)constrainedSize
|
|
{
|
|
CGSize size = {
|
|
ASPointsValidForSize(constrainedSize.max.width) == NO ? ASLayoutElementParentDimensionUndefined : constrainedSize.max.width,
|
|
ASPointsValidForSize(constrainedSize.max.height) == NO ? ASLayoutElementParentDimensionUndefined : constrainedSize.max.height
|
|
};
|
|
|
|
NSArray *children = self.children;
|
|
NSMutableArray *sublayouts = [NSMutableArray arrayWithCapacity:children.count];
|
|
|
|
for (id<ASLayoutElement> child in children) {
|
|
CGPoint layoutPosition = child.style.layoutPosition;
|
|
CGSize autoMaxSize = {
|
|
constrainedSize.max.width - layoutPosition.x,
|
|
constrainedSize.max.height - layoutPosition.y
|
|
};
|
|
|
|
const ASSizeRange childConstraint = ASLayoutElementSizeResolveAutoSize(child.style.size, size, {{0,0}, autoMaxSize});
|
|
|
|
ASLayout *sublayout = [child layoutThatFits:childConstraint parentSize:size];
|
|
sublayout.position = layoutPosition;
|
|
[sublayouts addObject:sublayout];
|
|
}
|
|
|
|
if (_sizing == ASAbsoluteLayoutSpecSizingSizeToFit || isnan(size.width)) {
|
|
size.width = constrainedSize.min.width;
|
|
for (ASLayout *sublayout in sublayouts) {
|
|
size.width = MAX(size.width, sublayout.position.x + sublayout.size.width);
|
|
}
|
|
}
|
|
|
|
if (_sizing == ASAbsoluteLayoutSpecSizingSizeToFit || isnan(size.height)) {
|
|
size.height = constrainedSize.min.height;
|
|
for (ASLayout *sublayout in sublayouts) {
|
|
size.height = MAX(size.height, sublayout.position.y + sublayout.size.height);
|
|
}
|
|
}
|
|
|
|
return [ASLayout layoutWithLayoutElement:self size:ASSizeRangeClamp(constrainedSize, size) sublayouts:sublayouts];
|
|
}
|
|
|
|
@end
|
|
|