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equalToSuperviewSafeAreaLayoutGuide, lessThanOrEqualToSuperviewSafeAreaLayoutGuide and greaterThanOrEqualToSuperviewSafeAreaLayoutGuide #792

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31 changes: 29 additions & 2 deletions Sources/ConstraintMakerRelatable.swift
Original file line number Diff line number Diff line change
Expand Up @@ -86,7 +86,16 @@ public class ConstraintMakerRelatable {
}
return self.relatedTo(other, relation: .equal, file: file, line: line)
}


@available(iOS 11.0, tvOS 11.0, macOS 11.0, *)
@discardableResult
public func equalToSuperviewSafeAreaLayoutGuide(_ file: String = #file, _ line: UInt = #line) -> ConstraintMakerEditable {
guard let other = self.description.item.superview?.safeAreaLayoutGuide else {
fatalError("Expected superview but found nil when attempting make constraint `equalToSuperviewSafeAreaLayoutGuide`.")
}
return self.relatedTo(other, relation: .equal, file: file, line: line)
}

@discardableResult
public func lessThanOrEqualTo(_ other: ConstraintRelatableTarget, _ file: String = #file, _ line: UInt = #line) -> ConstraintMakerEditable {
return self.relatedTo(other, relation: .lessThanOrEqual, file: file, line: line)
Expand All @@ -99,7 +108,16 @@ public class ConstraintMakerRelatable {
}
return self.relatedTo(other, relation: .lessThanOrEqual, file: file, line: line)
}


@available(iOS 11.0, tvOS 11.0, macOS 11.0, *)
@discardableResult
public func lessThanOrEqualToSuperviewSafeAreaLayoutGuide(_ file: String = #file, _ line: UInt = #line) -> ConstraintMakerEditable {
guard let other = self.description.item.superview?.safeAreaLayoutGuide else {
fatalError("Expected superview but found nil when attempting make constraint `lessThanOrEqualToSuperviewSafeAreaLayoutGuide`.")
}
return self.relatedTo(other, relation: .lessThanOrEqual, file: file, line: line)
}

@discardableResult
public func greaterThanOrEqualTo(_ other: ConstraintRelatableTarget, _ file: String = #file, line: UInt = #line) -> ConstraintMakerEditable {
return self.relatedTo(other, relation: .greaterThanOrEqual, file: file, line: line)
Expand All @@ -112,4 +130,13 @@ public class ConstraintMakerRelatable {
}
return self.relatedTo(other, relation: .greaterThanOrEqual, file: file, line: line)
}

@available(iOS 11.0, tvOS 11.0, macOS 11.0, *)
@discardableResult
public func greaterThanOrEqualToSuperviewSafeAreaLayoutGuide(_ file: String = #file, line: UInt = #line) -> ConstraintMakerEditable {
guard let other = self.description.item.superview?.safeAreaLayoutGuide else {
fatalError("Expected superview but found nil when attempting make constraint `greaterThanOrEqualToSuperviewSafeAreaLayoutGuide`.")
}
return self.relatedTo(other, relation: .greaterThanOrEqual, file: file, line: line)
}
}
34 changes: 34 additions & 0 deletions Tests/SnapKitTests/Tests.swift
Original file line number Diff line number Diff line change
Expand Up @@ -768,4 +768,38 @@ class SnapKitTests: XCTestCase {
let higherPriority: ConstraintPriority = ConstraintPriority.high.advanced(by: 1)
XCTAssertEqual(higherPriority.value, highPriority.value + 1)
}

@available(iOS 11.0, tvOS 11.0, macOS 11.0, *)
func testSafeAreaLayoutGuide() {
let v1 = View()
self.container.addSubview(v1)

v1.snp.makeConstraints { make in
make.verticalEdges.equalToSuperviewSafeAreaLayoutGuide()
make.leading.lessThanOrEqualToSuperviewSafeAreaLayoutGuide()
make.trailing.greaterThanOrEqualToSuperviewSafeAreaLayoutGuide()
}

XCTAssertEqual(container.snp_constraints.count, 4, "Should have 4 constraints installed")
XCTAssertNotNil(container.constraints.first {
$0.firstAttribute == .leading &&
$0.secondAttribute == .leading &&
$0.relation == .lessThanOrEqual
})
XCTAssertNotNil(container.constraints.first {
$0.firstAttribute == .trailing &&
$0.secondAttribute == .trailing &&
$0.relation == .greaterThanOrEqual
})
XCTAssertNotNil(container.constraints.first {
$0.firstAttribute == .top &&
$0.secondAttribute == .top &&
$0.relation == .equal
})
XCTAssertNotNil(container.constraints.first {
$0.firstAttribute == .bottom &&
$0.secondAttribute == .bottom &&
$0.relation == .equal
})
}
}