NavDeepLinkDslBuilder.kt
/*
* Copyright 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.navigation
@DslMarker
public annotation class NavDeepLinkDsl
/**
* Construct a new [NavDeepLink]
*/
public fun navDeepLink(deepLinkBuilder: NavDeepLinkDslBuilder.() -> Unit): NavDeepLink =
NavDeepLinkDslBuilder().apply(deepLinkBuilder).build()
/**
* DSL for constructing a new [NavDeepLink]
*/
@NavDeepLinkDsl
public class NavDeepLinkDslBuilder {
private val builder = NavDeepLink.Builder()
/**
* The uri pattern of the deep link
*/
public var uriPattern: String? = null
/**
* Intent action for the deep link
*
* @throws IllegalArgumentException if attempting to set to empty.
*/
public var action: String? = null
@Suppress("DocumentExceptions")
set(p) {
if (p != null && p.isEmpty()) {
throw IllegalArgumentException("The NavDeepLink cannot have an empty action.")
}
field = p
}
/**
* MimeType for the deep link
*/
public var mimeType: String? = null
internal fun build() = builder.apply {
check(!(uriPattern == null && action == null && mimeType == null)) {
("The NavDeepLink must have an uri, action, and/or mimeType.")
}
uriPattern?.let { setUriPattern(it) }
action?.let { setAction(it) }
mimeType?.let { setMimeType(it) }
}.build()
}