Merge some library UIView code for toolbar

app/src/main/java/org/mozilla/fenix/ext/Int.kt

@@ -5,8 +5,19 @@
 package org.mozilla.fenix.ext
 
 import android.content.Context
+import androidx.annotation.ColorInt
+import androidx.annotation.ColorRes
 import androidx.core.content.ContextCompat
 import org.mozilla.fenix.ThemeManager
 
+/**
+ * Returns the color resource corresponding to the attribute.
+ */
+@ColorRes
 fun Int.getColorIntFromAttr(context: Context): Int = ThemeManager.resolveAttribute(this, context)
+
+/**
+ * Returns the color int corresponding to the attribute.
+ */
+@ColorInt
 fun Int.getColorFromAttr(context: Context): Int = ContextCompat.getColor(context, this.getColorIntFromAttr(context))

app/src/main/java/org/mozilla/fenix/library/LibraryPageUIView.kt

@@ -0,0 +1,74 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.library
+
+import android.graphics.ColorFilter
+import android.graphics.PorterDuff
+import android.graphics.PorterDuffColorFilter
+import android.view.ViewGroup
+import android.widget.ActionMenuView
+import android.widget.ImageButton
+import androidx.annotation.ColorRes
+import androidx.appcompat.view.menu.ActionMenuItemView
+import androidx.appcompat.widget.Toolbar
+import androidx.core.content.ContextCompat
+import androidx.core.view.forEach
+import io.reactivex.Observable
+import io.reactivex.Observer
+import org.mozilla.fenix.R
+import org.mozilla.fenix.ext.asActivity
+import org.mozilla.fenix.mvi.Action
+import org.mozilla.fenix.mvi.Change
+import org.mozilla.fenix.mvi.UIView
+import org.mozilla.fenix.mvi.ViewState
+
+/**
+ * Shared base class for [org.mozilla.fenix.library.bookmarks.BookmarkUIView] and
+ * [org.mozilla.fenix.library.history.HistoryUIView].
+ */
+abstract class LibraryPageUIView<S : ViewState, A : Action, C : Change>(
+    container: ViewGroup,
+    actionEmitter: Observer<A>,
+    changesObservable: Observable<C>
+) : UIView<S, A, C>(container, actionEmitter, changesObservable) {
+
+    protected val context = container.context
+    protected val activity = context?.asActivity()
+
+    /**
+     * Adjust the colors of the [Toolbar] on the top of the screen.
+     */
+    protected fun setToolbarColors(@ColorRes foregroundRes: Int, @ColorRes backgroundRes: Int) {
+        val toolbar = activity?.findViewById<Toolbar>(R.id.navigationToolbar)
+
+        val foreground = ContextCompat.getColor(context, foregroundRes)
+        val background = ContextCompat.getColor(context, backgroundRes)
+
+        toolbar?.apply {
+            setBackgroundColor(background)
+            setTitleTextColor(foreground)
+
+            val colorFilter = PorterDuffColorFilter(foreground, PorterDuff.Mode.SRC_IN)
+
+            overflowIcon?.colorFilter = colorFilter
+            forEach { child ->
+                when (child) {
+                    is ImageButton -> child.drawable.colorFilter = colorFilter
+                    is ActionMenuView -> themeActionMenuView(child, colorFilter)
+                }
+            }
+        }
+    }
+
+    private fun themeActionMenuView(item: ActionMenuView, colorFilter: ColorFilter) {
+        item.forEach { innerChild ->
+            if (innerChild is ActionMenuItemView) {
+                innerChild.compoundDrawables.forEach { drawable ->
+                    item.post { drawable?.colorFilter = colorFilter }
+                }
+            }
+        }
+    }
+}

app/src/main/java/org/mozilla/fenix/library/bookmarks/BookmarkUIView.kt

@@ -4,17 +4,9 @@
 
 package org.mozilla.fenix.library.bookmarks
 
-import android.graphics.PorterDuff.Mode.SRC_IN
-import android.graphics.PorterDuffColorFilter
 import android.view.LayoutInflater
 import android.view.ViewGroup
-import android.widget.ImageButton
 import android.widget.LinearLayout
-import androidx.appcompat.app.AppCompatActivity
-import androidx.appcompat.view.menu.ActionMenuItemView
-import androidx.appcompat.widget.ActionMenuView
-import androidx.appcompat.widget.Toolbar
-import androidx.core.content.ContextCompat
 import io.reactivex.Observable
 import io.reactivex.Observer
 import io.reactivex.functions.Consumer
@@ -23,16 +15,15 @@ import mozilla.appservices.places.BookmarkRoot
 import mozilla.components.concept.storage.BookmarkNode
 import mozilla.components.support.base.feature.BackHandler
 import org.mozilla.fenix.R
-import org.mozilla.fenix.ext.asActivity
 import org.mozilla.fenix.ext.getColorIntFromAttr
-import org.mozilla.fenix.mvi.UIView
+import org.mozilla.fenix.library.LibraryPageUIView
 
 class BookmarkUIView(
     container: ViewGroup,
     actionEmitter: Observer<BookmarkAction>,
     changesObservable: Observable<BookmarkChange>
 ) :
-    UIView<BookmarkState, BookmarkAction, BookmarkChange>(container, actionEmitter, changesObservable),
+    LibraryPageUIView<BookmarkState, BookmarkAction, BookmarkChange>(container, actionEmitter, changesObservable),
     BackHandler {
 
     var mode: BookmarkState.Mode = BookmarkState.Mode.Normal
@@ -46,8 +37,6 @@ class BookmarkUIView(
         .inflate(R.layout.component_bookmark, container, true) as LinearLayout
 
     private val bookmarkAdapter: BookmarkAdapter
-    private val context = container.context
-    private val activity = context?.asActivity()
 
     init {
         view.bookmark_list.apply {
@@ -87,21 +76,6 @@ class BookmarkUIView(
 
     fun getSelected(): Set<BookmarkNode> = bookmarkAdapter.selected
 
-    private fun setToolbarColors(foreground: Int, background: Int) {
-        val toolbar = activity?.findViewById<Toolbar>(R.id.navigationToolbar)
-        val colorFilter = PorterDuffColorFilter(
-            ContextCompat.getColor(context, foreground), SRC_IN
-        )
-        toolbar?.run {
-            setBackgroundColor(ContextCompat.getColor(context, background))
-            setTitleTextColor(ContextCompat.getColor(context, foreground))
-            themeToolbar(
-                toolbar, foreground,
-                background, colorFilter
-            )
-        }
-    }
-
     private fun setUIForSelectingMode(
         root: BookmarkNode?,
         mode: BookmarkState.Mode.Selecting
@@ -125,62 +99,9 @@ class BookmarkUIView(
     }
 
     private fun setTitle(root: BookmarkNode?) {
-        (activity as? AppCompatActivity)?.title =
-            if (root?.guid in setOf(
-                    BookmarkRoot.Mobile.id,
-                    null
-                )
-            ) {
-                context.getString(R.string.library_bookmarks)
-            } else {
-                root!!.title
-            }
-    }
-
-    private fun themeToolbar(
-        toolbar: Toolbar,
-        textColor: Int,
-        backgroundColor: Int,
-        colorFilter: PorterDuffColorFilter? = null
-    ) {
-        toolbar.setTitleTextColor(ContextCompat.getColor(context!!, textColor))
-        toolbar.setBackgroundColor(ContextCompat.getColor(context, backgroundColor))
-
-        if (colorFilter == null) {
-            return
-        }
-
-        toolbar.overflowIcon?.colorFilter = colorFilter
-        (0 until toolbar.childCount).forEach {
-            when (val item = toolbar.getChildAt(it)) {
-                is ImageButton -> item.drawable.colorFilter = colorFilter
-                is ActionMenuView -> themeActionMenuView(item, colorFilter)
-            }
-        }
-    }
-
-    private fun themeActionMenuView(
-        item: ActionMenuView,
-        colorFilter: PorterDuffColorFilter
-    ) {
-        (0 until item.childCount).forEach {
-            val innerChild = item.getChildAt(it)
-            if (innerChild is ActionMenuItemView) {
-                themeChildren(innerChild, item, colorFilter)
-            }
-        }
-    }
-
-    private fun themeChildren(
-        innerChild: ActionMenuItemView,
-        item: ActionMenuView,
-        colorFilter: PorterDuffColorFilter
-    ) {
-        val drawables = innerChild.compoundDrawables
-        for (k in drawables.indices) {
-            drawables[k]?.let {
-                item.post { innerChild.compoundDrawables[k].colorFilter = colorFilter }
-            }
+        activity?.title = when (root?.guid) {
+            BookmarkRoot.Mobile.id, null -> context.getString(R.string.library_bookmarks)
+            else -> root.title
         }
     }
 }

app/src/main/java/org/mozilla/fenix/library/history/HistoryUIView.kt

@@ -4,16 +4,11 @@
 
 package org.mozilla.fenix.library.history
 
-import android.graphics.PorterDuff.Mode.SRC_IN
-import android.graphics.PorterDuffColorFilter
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.ImageButton
-import androidx.appcompat.app.AppCompatActivity
-import androidx.appcompat.widget.Toolbar
 import androidx.constraintlayout.widget.ConstraintLayout
-import androidx.core.content.ContextCompat
+import androidx.core.view.isVisible
 import androidx.recyclerview.widget.LinearLayoutManager
 import io.reactivex.Observable
 import io.reactivex.Observer
@@ -23,16 +18,15 @@ import kotlinx.android.synthetic.main.component_history.view.*
 import kotlinx.android.synthetic.main.delete_history_button.*
 import mozilla.components.support.base.feature.BackHandler
 import org.mozilla.fenix.R
-import org.mozilla.fenix.ext.asActivity
 import org.mozilla.fenix.ext.getColorIntFromAttr
-import org.mozilla.fenix.mvi.UIView
+import org.mozilla.fenix.library.LibraryPageUIView
 
 class HistoryUIView(
     container: ViewGroup,
     actionEmitter: Observer<HistoryAction>,
     changesObservable: Observable<HistoryChange>
 ) :
-    UIView<HistoryState, HistoryAction, HistoryChange>(container, actionEmitter, changesObservable),
+    LibraryPageUIView<HistoryState, HistoryAction, HistoryChange>(container, actionEmitter, changesObservable),
     BackHandler {
 
     var mode: HistoryState.Mode = HistoryState.Mode.Normal
@@ -40,8 +34,6 @@ class HistoryUIView(
 
     private val historyAdapter: HistoryAdapter
     private var items: List<HistoryItem> = listOf()
-    private val context = container.context
-    private val activity = context?.asActivity()
 
     fun getSelected(): List<HistoryItem> = historyAdapter.selected
 
@@ -77,7 +69,7 @@ class HistoryUIView(
     private fun setUIForSelectingMode(
         mode: HistoryState.Mode.Editing
     ) {
-        (activity as? AppCompatActivity)?.title =
+        activity?.title =
                 context.getString(R.string.history_multi_select_title, mode.selectedItems.size)
         setToolbarColors(
             R.color.white_color,
@@ -86,48 +78,15 @@ class HistoryUIView(
     }
 
     private fun setUIForNormalMode(isEmpty: Boolean) {
-        (activity as? AppCompatActivity)?.title = context.getString(R.string.library_history)
-        delete_history_button?.visibility = if (isEmpty) View.GONE else View.VISIBLE
-        history_empty_view.visibility = if (isEmpty) View.VISIBLE else View.GONE
+        activity?.title = context.getString(R.string.library_history)
+        delete_history_button?.isVisible = !isEmpty
+        history_empty_view.isVisible = isEmpty
         setToolbarColors(
             R.attr.primaryText.getColorIntFromAttr(context!!),
             R.attr.foundation.getColorIntFromAttr(context)
         )
     }
 
-    private fun setToolbarColors(foreground: Int, background: Int) {
-        val toolbar = (activity as AppCompatActivity).findViewById<Toolbar>(R.id.navigationToolbar)
-        val colorFilter = PorterDuffColorFilter(ContextCompat.getColor(context, foreground), SRC_IN)
-        toolbar.setBackgroundColor(ContextCompat.getColor(context, background))
-        toolbar.setTitleTextColor(ContextCompat.getColor(context, foreground))
-
-        themeToolbar(
-            toolbar, foreground,
-            background, colorFilter
-        )
-    }
-
-    private fun themeToolbar(
-        toolbar: androidx.appcompat.widget.Toolbar,
-        textColor: Int,
-        backgroundColor: Int,
-        colorFilter: PorterDuffColorFilter? = null
-    ) {
-        toolbar.setTitleTextColor(ContextCompat.getColor(context!!, textColor))
-        toolbar.setBackgroundColor(ContextCompat.getColor(context, backgroundColor))
-
-        if (colorFilter == null) {
-            return
-        }
-
-        toolbar.overflowIcon?.colorFilter = colorFilter
-        (0 until toolbar.childCount).forEach {
-            when (val item = toolbar.getChildAt(it)) {
-                is ImageButton -> item.drawable.colorFilter = colorFilter
-            }
-        }
-    }
-
     override fun onBackPressed(): Boolean {
         return when (mode) {
             is HistoryState.Mode.Editing -> {