From d683cae6ffe644a9f63eea6cf3b7e59d2bde617b Mon Sep 17 00:00:00 2001
From: Allan Wang <me@allanwang.ca>
Date: Thu, 21 Dec 2017 02:16:34 -0500
Subject: Enhancement/fragment interface (#564)

* Begin fragment interfaces and themable contracts

* Prepare swiperefresh interface

* Snapshot

* Add compilable version

* Revamp once more

* Finalize layouts

* Cleanup
---
 .../frost/fragments/FragmentContract.kt            | 92 ++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 app/src/main/kotlin/com/pitchedapps/frost/fragments/FragmentContract.kt

(limited to 'app/src/main/kotlin/com/pitchedapps/frost/fragments/FragmentContract.kt')

diff --git a/app/src/main/kotlin/com/pitchedapps/frost/fragments/FragmentContract.kt b/app/src/main/kotlin/com/pitchedapps/frost/fragments/FragmentContract.kt
new file mode 100644
index 00000000..62b1de33
--- /dev/null
+++ b/app/src/main/kotlin/com/pitchedapps/frost/fragments/FragmentContract.kt
@@ -0,0 +1,92 @@
+package com.pitchedapps.frost.fragments
+
+import android.content.Context
+import com.pitchedapps.frost.contracts.FrostContentContainer
+import com.pitchedapps.frost.contracts.FrostContentCore
+import com.pitchedapps.frost.contracts.FrostContentParent
+import com.pitchedapps.frost.contracts.MainActivityContract
+import com.pitchedapps.frost.views.FrostRecyclerView
+import io.reactivex.disposables.Disposable
+
+/**
+ * Created by Allan Wang on 2017-11-07.
+ */
+
+interface FragmentContract : FrostContentContainer {
+
+    val content: FrostContentParent?
+
+    /**
+     * Helper to retrieve the core from [content]
+     */
+    val core: FrostContentCore?
+        get() = content?.core
+
+    /**
+     * Specifies position in Activity's viewpager
+     */
+    val position: Int
+
+    /**
+     * Specifies whether if current load
+     * will be fragment's first load
+     *
+     * Defaults to true
+     */
+    var firstLoad: Boolean
+
+    /**
+     * Called when the fragment is first visible
+     * Typically, if [firstLoad] is true,
+     * the fragment should call [reload] and make [firstLoad] false
+     */
+    fun firstLoadRequest()
+
+    /**
+     * Single callable action to be executed upon creation
+     * Note that this call is not guaranteed
+     */
+    fun post(action: (fragment: FragmentContract) -> Unit)
+
+    /**
+     * Call whenever a fragment is attached so that it may listen
+     * to activity emissions
+     */
+    fun attachMainObservable(contract: MainActivityContract): Disposable
+
+    /**
+     * Load custom layout to container
+     */
+    fun innerView(context: Context): FrostContentCore
+
+    /**
+     * Call when fragment is detached so that any existing
+     * observable is disposed
+     */
+    fun detachMainObservable()
+
+    /*
+     * -----------------------------------------
+     * Delegates
+     * -----------------------------------------
+     */
+
+    fun onBackPressed(): Boolean
+
+    fun onTabClick()
+
+
+}
+
+interface RecyclerContentContract {
+
+    fun bind(recyclerView: FrostRecyclerView)
+
+    /**
+     * Completely handle data reloading
+     * Optional progress emission update
+     * Callback returns [true] for success, [false] otherwise
+     */
+    fun reload(progress: (Int) -> Unit, callback: (Boolean) -> Unit)
+
+}
\ No newline at end of file
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