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package ca.allanwang.kau.kpref.activity.items
import android.support.annotation.CallSuper
import android.view.View
import ca.allanwang.kau.R
import ca.allanwang.kau.kpref.activity.GlobalOptions
import ca.allanwang.kau.utils.resolveDrawable
/**
* Created by Allan Wang on 2017-06-05.
*
* Base class for pref setters that include the Shared Preference hooks
*/
abstract class KPrefItemBase<T>(val base: BaseContract<T>) : KPrefItemCore(base) {
open var pref: T
get() = base.getter.invoke()
set(value) {
base.setter.invoke(value)
}
var enabled: Boolean = true
init {
if (base.onClick == null) base.onClick = {
itemView, innerContent, _ ->
defaultOnClick(itemView, innerContent)
}
}
abstract fun defaultOnClick(itemView: View, innerContent: View?): Boolean
@CallSuper
override fun onPostBindView(viewHolder: ViewHolder, textColor: Int?, accentColor: Int?) {
enabled = base.enabler.invoke()
with(viewHolder) {
if (!enabled) container?.background = null
container?.alpha = if (enabled) 1.0f else 0.3f
}
}
override final fun onClick(itemView: View, innerContent: View?): Boolean {
return if (enabled) base.onClick?.invoke(itemView, innerContent, this) ?: false
else base.onDisabledClick?.invoke(itemView, innerContent, this) ?: false
}
override fun unbindView(holder: ViewHolder) {
super.unbindView(holder)
with(holder) {
container?.isEnabled = true
container?.background = itemView.context.resolveDrawable(android.R.attr.selectableItemBackground)
container?.alpha = 1.0f
}
}
override final fun getLayoutRes(): Int = R.layout.kau_preference
/**
* Extension of the core contract
* Since everything that extends the base is an actual preference, there must be a getter and setter
* The rest are optional and will have their defaults
*/
interface BaseContract<T> : CoreContract {
var enabler: () -> Boolean
var onClick: ((itemView: View, innerContent: View?, item: KPrefItemBase<T>) -> Boolean)?
var onDisabledClick: ((itemView: View, innerContent: View?, item: KPrefItemBase<T>) -> Boolean)?
val getter: () -> T
val setter: (value: T) -> Unit
}
/**
* Default implementation of [BaseContract]
*/
class BaseBuilder<T>(globalOptions: GlobalOptions,
titleRes: Int,
override val getter: () -> T,
override val setter: (value: T) -> Unit
) : CoreContract by CoreBuilder(globalOptions, titleRes), BaseContract<T> {
override var enabler: () -> Boolean = { true }
override var onClick: ((itemView: View, innerContent: View?, item: KPrefItemBase<T>) -> Boolean)? = null
override var onDisabledClick: ((itemView: View, innerContent: View?, item: KPrefItemBase<T>) -> Boolean)? = null
}
}
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