1 files changed, 85 insertions, 0 deletions
diff --git a/core/src/main/kotlin/ca/allanwang/kau/kpref/items/KPrefItemBase.kt b/core/src/main/kotlin/ca/allanwang/kau/kpref/items/KPrefItemBase.kt
new file mode 100644
index 0000000..bb0f0a3
--- /dev/null
+++ b/core/src/main/kotlin/ca/allanwang/kau/kpref/items/KPrefItemBase.kt
@@ -0,0 +1,85 @@
+package ca.allanwang.kau.kpref.items
+
+import android.support.annotation.CallSuper
+import android.view.View
+import ca.allanwang.kau.R
+import ca.allanwang.kau.kpref.CoreAttributeContract
+import ca.allanwang.kau.kpref.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
+    }
+
+}
+\ No newline at end of file