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/*
* Copyright 2018 Allan Wang
*
* 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 ca.allanwang.kau.swipe
import android.app.Activity
import android.graphics.Color
import android.graphics.drawable.ColorDrawable
import android.view.ViewGroup
import ca.allanwang.kau.logging.KL
import java.lang.ref.WeakReference
/**
* Created by Mr.Jude on 2015/8/3.
*
* Updated by Allan Wang on 2017/07/05
*/
internal class SwipeBackPage(activity: Activity) : SwipeBackContractInternal by SwipeBackLayout(activity) {
var activityRef = WeakReference(activity)
var slider: RelativeSlider
/**
* initializing is the equivalent to onCreate
* since that is when the page is created
*/
init {
activity.window.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
activity.window.decorView.setBackgroundColor(Color.TRANSPARENT)
swipeBackLayout.layoutParams =
ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)
slider = RelativeSlider(this)
}
fun onPostCreate() {
handleLayout()
}
override var swipeEnabled: Boolean
get() = swipeBackLayout.swipeEnabled
set(value) {
swipeBackLayout.swipeEnabled = value
handleLayout()
}
private fun handleLayout() {
val activity = activityRef.get()
?: return KL.v { "KauSwipe activity ref gone during handleLayout" }
if (swipeEnabled) swipeBackLayout.attachToActivity(activity)
else swipeBackLayout.removeFromActivity(activity)
}
fun setClosePercent(percent: Float): SwipeBackPage {
swipeBackLayout.scrollThreshold = percent
return this
}
}
internal interface SwipeBackContractInternal : SwipeBackContract {
val swipeBackLayout: SwipeBackLayout
}
interface SwipeBackContract {
/**
* Toggle main touch intercept
* Disabling will remove the swipe back handler
*/
var swipeEnabled: Boolean
/**
* Set the background color for the outside of the page
* This dynamically fades as the page gets closer to exiting
*/
var scrimColor: Int
var edgeSize: Int
/**
* Set the flag for which edge the page is scrolling from
*/
var edgeFlag: Int
/**
* Set the scrolling threshold for wish a page is deemed closing
*/
var scrollThreshold: Float
/**
* Toggle main touch intercept
* Disabling will just ignore touch events, but the handler will remain attached
*/
var disallowIntercept: Boolean
/**
* Set the min velocity of the view drag helper
*/
var minVelocity: Float
/**
* Set the max velocity of the view drag helper
*/
var maxVelocity: Float
/**
* Set the sensitivity of the view drag helper
*/
var sensitivity: Float
/**
* Dynamically change the alpha for the status bar and nav bar
* as the page scrolls
*/
var transitionSystemBars: Boolean
/**
* Sets edge size based on screen size
*/
fun setEdgeSizePercent(swipeEdgePercent: Float)
fun addListener(listener: SwipeListener)
fun removeListener(listener: SwipeListener)
fun hasListener(listener: SwipeListener): Boolean
fun scrollToFinishActivity()
}
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