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package ca.allanwang.kau.kpref.activity.items
import androidx.annotation.CallSuper
import android.view.View
import ca.allanwang.kau.kpref.activity.GlobalOptions
import ca.allanwang.kau.kpref.activity.KClick
import ca.allanwang.kau.kpref.activity.R
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>(protected val base: BaseContract<T>) : KPrefItemCore(base) {
open var pref: T
get() = base.getter()
set(value) {
base.setter(value)
}
private var _enabled: Boolean = true
val enabled
get() = _enabled
init {
if (base.onClick == null) base.onClick = { defaultOnClick() }
}
@CallSuper
override fun bindView(holder: ViewHolder, payloads: List<Any>) {
super.bindView(holder, payloads)
_enabled = base.enabler()
with(holder) {
if (!_enabled) container?.background = null
container?.alpha = if (_enabled) 1.0f else 0.3f
}
}
final override fun onClick(itemView: View) {
val kclick = object : KClick<T> {
override val context = itemView.context
override val itemView = itemView
override val innerView: View? by lazy { itemView.findViewById<View>(R.id.kau_pref_inner_content) }
override val item = this@KPrefItemBase
}
if (_enabled) {
val onClick = base.onClick ?: return
kclick.onClick()
} else {
val onClick = base.onDisabledClick ?: return
kclick.onClick()
}
}
abstract fun KClick<T>.defaultOnClick()
override fun unbindView(holder: ViewHolder) {
super.unbindView(holder)
holder.container?.apply {
isEnabled = true
background = holder.itemView.context.resolveDrawable(android.R.attr.selectableItemBackground)
alpha = 1.0f
}
}
final override fun getLayoutRes(): Int = R.layout.kau_pref_core
/**
* 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: (KClick<T>.() -> Unit)?
var onDisabledClick: (KClick<T>.() -> Unit)?
val getter: () -> T
val setter: (value: T) -> Unit
}
/**
* Default implementation of [BaseContract]
*/
class BaseBuilder<T>(globalOptions: GlobalOptions,
titleId: Int,
override val getter: () -> T,
override val setter: (value: T) -> Unit
) : CoreContract by CoreBuilder(globalOptions, titleId), BaseContract<T> {
override var enabler: () -> Boolean = { true }
override var onClick: (KClick<T>.() -> Unit)? = null
override var onDisabledClick: (KClick<T>.() -> Unit)? = null
}
}
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