Enhancement/fragment interface (#564)

* Begin fragment interfaces and themable contracts

* Prepare swiperefresh interface

* Snapshot

* Add compilable version

* Revamp once more

* Finalize layouts

* Cleanup

1 files changed, 103 insertions, 0 deletions

diff --git a/app/src/main/kotlin/com/pitchedapps/frost/views/FrostRecyclerView.kt b/app/src/main/kotlin/com/pitchedapps/frost/views/FrostRecyclerView.kt
new file mode 100644
index 00000000..436f8b00
--- /dev/null
+++ b/app/src/main/kotlin/com/pitchedapps/frost/views/FrostRecyclerView.kt
@@ -0,0 +1,103 @@
+package com.pitchedapps.frost.views
+
+import android.content.Context
+import android.support.v7.widget.RecyclerView
+import android.util.AttributeSet
+import android.view.View
+import com.pitchedapps.frost.contracts.FrostContentContainer
+import com.pitchedapps.frost.contracts.FrostContentCore
+import com.pitchedapps.frost.contracts.FrostContentParent
+import com.pitchedapps.frost.fragments.RecyclerContentContract
+import com.pitchedapps.frost.utils.L
+import java.lang.ref.WeakReference
+
+/**
+ * Created by Allan Wang on 2017-05-29.
+ *
+ */
+class FrostRecyclerView @JvmOverloads constructor(
+        context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0
+) : RecyclerView(context, attrs, defStyleAttr),
+        FrostContentCore {
+
+    override fun reload(animate: Boolean) = reloadBase(animate)
+
+    override lateinit var parent: FrostContentParent
+
+    override val currentUrl: String
+        get() = parent.baseUrl
+
+    lateinit var recyclerContract: WeakReference<RecyclerContentContract>
+
+    override fun bind(container: FrostContentContainer): View {
+        if (container !is RecyclerContentContract)
+            throw IllegalStateException("FrostRecyclerView must bind to a container that is a RecyclerContentContract")
+        this.recyclerContract = WeakReference(container)
+        container.bind(this)
+        return this
+    }
+
+    init {
+        isNestedScrollingEnabled = true
+    }
+
+    override fun reloadBase(animate: Boolean) {
+        val contract = recyclerContract.get()
+        if (contract == null) {
+            L.eThrow("Attempted to reload with invalid contract")
+            return
+        }
+        contract.reload({ parent.progressObservable.onNext(it) }) {
+            parent.progressObservable.onNext(100)
+            parent.refreshObservable.onNext(false)
+        }
+    }
+
+    override fun clearHistory() {
+        // intentionally blank
+    }
+
+    override fun destroy() {
+        // todo see if any
+    }
+
+    override fun onBackPressed() = false
+
+    /**
+     * If webview is already at the top, refresh
+     * Otherwise scroll to top
+     */
+    override fun onTabClicked() {
+        if (scrollY < 5) reloadBase(true)
+        else scrollToTop()
+    }
+
+    private fun scrollToTop() {
+        stopScroll()
+        smoothScrollToPosition(0)
+    }
+
+    override var active: Boolean = true
+        set(value) {
+            if (field == value) return
+            field = value
+            // todo
+        }
+
+    override fun reloadTheme() {
+        reloadThemeSelf()
+    }
+
+    override fun reloadThemeSelf() {
+        reload(false) // todo see if there's a better solution
+    }
+
+    override fun reloadTextSize() {
+        reloadTextSizeSelf()
+    }
+
+    override fun reloadTextSizeSelf() {
+        // todo
+    }
+
+}
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