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d0ba092a77
* Convert the codebase to Objective-C++ throughout. One language is better than two. * Put it back * Fix linker * Point explicitly to updated Weaver to unblock build * Revert "Point explicitly to updated Weaver to unblock build" This reverts commit fdc25296e8794d4e6e56c35f5fe6da2be3f71dbc. * Revert "Fix linker" This reverts commit 7be25f91519b8497ef42de79f115bcfbdb965c39. * Add in the frameworks * no message * Address spec lint warnings * Fix tvos build * Put that back * Address Michael's review * Add comment to kick CI
65 lines
2.4 KiB
Plaintext
65 lines
2.4 KiB
Plaintext
//
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// ASScrollDirection.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/ASScrollDirection.h>
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const ASScrollDirection ASScrollDirectionHorizontalDirections = ASScrollDirectionLeft | ASScrollDirectionRight;
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const ASScrollDirection ASScrollDirectionVerticalDirections = ASScrollDirectionUp | ASScrollDirectionDown;
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BOOL ASScrollDirectionContainsVerticalDirection(ASScrollDirection scrollDirection) {
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return (scrollDirection & ASScrollDirectionVerticalDirections) != 0;
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}
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BOOL ASScrollDirectionContainsHorizontalDirection(ASScrollDirection scrollDirection) {
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return (scrollDirection & ASScrollDirectionHorizontalDirections) != 0;
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}
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BOOL ASScrollDirectionContainsRight(ASScrollDirection scrollDirection) {
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return (scrollDirection & ASScrollDirectionRight) != 0;
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}
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BOOL ASScrollDirectionContainsLeft(ASScrollDirection scrollDirection) {
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return (scrollDirection & ASScrollDirectionLeft) != 0;
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}
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BOOL ASScrollDirectionContainsUp(ASScrollDirection scrollDirection) {
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return (scrollDirection & ASScrollDirectionUp) != 0;
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}
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BOOL ASScrollDirectionContainsDown(ASScrollDirection scrollDirection) {
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return (scrollDirection & ASScrollDirectionDown) != 0;
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}
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ASScrollDirection ASScrollDirectionInvertHorizontally(ASScrollDirection scrollDirection) {
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if (scrollDirection == ASScrollDirectionRight) {
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return ASScrollDirectionLeft;
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} else if (scrollDirection == ASScrollDirectionLeft) {
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return ASScrollDirectionRight;
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}
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return scrollDirection;
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}
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ASScrollDirection ASScrollDirectionInvertVertically(ASScrollDirection scrollDirection) {
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if (scrollDirection == ASScrollDirectionUp) {
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return ASScrollDirectionDown;
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} else if (scrollDirection == ASScrollDirectionDown) {
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return ASScrollDirectionUp;
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}
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return scrollDirection;
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}
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ASScrollDirection ASScrollDirectionApplyTransform(ASScrollDirection scrollDirection, CGAffineTransform transform) {
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if ((transform.a < 0) && ASScrollDirectionContainsHorizontalDirection(scrollDirection)) {
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return ASScrollDirectionInvertHorizontally(scrollDirection);
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} else if ((transform.d < 0) && ASScrollDirectionContainsVerticalDirection(scrollDirection)) {
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return ASScrollDirectionInvertVertically(scrollDirection);
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}
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return scrollDirection;
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}
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