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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
import Foundation
public enum AddressToolbarBorderPosition {
case bottom
case top
}
public protocol ToolbarManager {
/// Determines whether a border on top/bottom of the address toolbar should be displayed
func shouldDisplayAddressBorder(borderPosition: AddressToolbarBorderPosition,
toolbarPosition: AddressToolbarPosition,
isPrivate: Bool,
scrollY: Int) -> Bool
/// Determines whether a border on top of the navigation toolbar should be displayed
func shouldDisplayNavigationBorder(toolbarPosition: AddressToolbarPosition) -> Bool
}
public class DefaultToolbarManager: ToolbarManager {
public init() {}
public func shouldDisplayAddressBorder(borderPosition: AddressToolbarBorderPosition,
toolbarPosition: AddressToolbarPosition,
isPrivate: Bool,
scrollY: Int) -> Bool {
// display the top border if
// - the toolbar is displayed at the bottom
// display the bottom border if
// - the toolbar is displayed at the top and the website was scrolled
// - we are in private mode
if borderPosition == .top {
return toolbarPosition == .bottom
} else {
return (toolbarPosition == .top && scrollY > 0) || isPrivate
}
}
public func shouldDisplayNavigationBorder(toolbarPosition: AddressToolbarPosition) -> Bool {
return toolbarPosition == .top
}
}