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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
import WebKit
/// The root class that generates the responder chain with all the available `WKPolicyDecider`s
///
/// The class decides a `WKPolicy` for each type of navigation by asking it to it's managed chain.
class WKPolicyDeciderFactory: WKPolicyDecider {
var nextDecider: WKPolicyDecider?
func policyForNavigation(action: NavigationAction) -> WKPolicy {
guard let nextDecider else { return .cancel }
return nextDecider.policyForNavigation(action: action)
}
func policyForNavigation(response: NavigationResponse) -> WKPolicy {
guard let nextDecider else { return .cancel }
return nextDecider.policyForNavigation(response: response)
}
func policyForPopupNavigation(action: NavigationAction) -> WKPolicy {
nextDecider = popupNavigationResponderChain()
guard let nextDecider else { return .cancel }
return nextDecider.policyForPopupNavigation(action: action)
}
private func popupNavigationResponderChain() -> WKPolicyDecider? {
let appLaunch = AppLaunchPolicyDecider()
let data = DataSchemePolicyDecider(nextDecider: appLaunch)
let http = HTTPSchemePolicyDecider(nextDecider: data)
let local = LocalRequestPolicyDecider(nextDecider: http)
return local
}
}