114 lines
4.1 KiB
Kotlin
114 lines
4.1 KiB
Kotlin
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.fenix.browser
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import android.content.Context
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import android.graphics.Color
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import android.graphics.drawable.ColorDrawable
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import android.view.View
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import androidx.core.graphics.drawable.toDrawable
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import androidx.fragment.app.Fragment
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import androidx.lifecycle.LifecycleCoroutineScope
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import androidx.navigation.NavOptions
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import kotlinx.coroutines.delay
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import kotlinx.coroutines.launch
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import mozilla.components.concept.engine.EngineView
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import org.mozilla.fenix.R
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import org.mozilla.fenix.components.toolbar.ToolbarPosition
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import org.mozilla.fenix.ext.settings
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import java.lang.ref.WeakReference
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/**
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* Handles properly animating the browser engine based on `SHOULD_ANIMATE_FLAG` passed in through
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* nav arguments.
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*/
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class BrowserAnimator(
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private val fragment: WeakReference<Fragment>,
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private val engineView: WeakReference<EngineView>,
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private val swipeRefresh: WeakReference<View>,
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private val viewLifecycleScope: WeakReference<LifecycleCoroutineScope>,
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private val firstContentfulHappened: () -> Boolean
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) {
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private val unwrappedEngineView: EngineView?
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get() = engineView.get()
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private val unwrappedSwipeRefresh: View?
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get() = swipeRefresh.get()
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fun beginAnimateInIfNecessary() {
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if (unwrappedSwipeRefresh?.context?.settings()?.waitToShowPageUntilFirstPaint == true) {
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if (firstContentfulHappened()) {
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viewLifecycleScope.get()?.launch {
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delay(ANIMATION_DELAY)
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unwrappedEngineView?.asView()?.visibility = View.VISIBLE
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unwrappedSwipeRefresh?.background = null
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unwrappedSwipeRefresh?.alpha = 1f
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}
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}
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} else {
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unwrappedSwipeRefresh?.alpha = 1f
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unwrappedEngineView?.asView()?.visibility = View.VISIBLE
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unwrappedSwipeRefresh?.background = null
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}
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}
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/**
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* Makes the swipeRefresh background a screenshot of the engineView in its current state.
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* This allows us to "animate" the engineView.
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*/
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fun captureEngineViewAndDrawStatically(onComplete: () -> Unit) {
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unwrappedEngineView?.asView()?.context.let {
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viewLifecycleScope.get()?.launch {
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// isAdded check is necessary because of a bug in viewLifecycleOwner. See AC#3828
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if (!fragment.isAdded()) {
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return@launch
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}
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unwrappedEngineView?.captureThumbnail { bitmap ->
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if (!fragment.isAdded()) {
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return@captureThumbnail
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}
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unwrappedSwipeRefresh?.apply {
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// If the bitmap is null, the best we can do to reduce the flash is set transparent
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background = bitmap?.toDrawable(context.resources)
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?: ColorDrawable(Color.TRANSPARENT)
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}
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unwrappedEngineView?.asView()?.visibility = View.GONE
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onComplete()
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}
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}
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}
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}
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private fun WeakReference<Fragment>.isAdded(): Boolean {
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val unwrapped = get()
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return unwrapped != null && unwrapped.isAdded
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}
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companion object {
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private const val ANIMATION_DELAY = 100L
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fun getToolbarNavOptions(context: Context): NavOptions {
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val navOptions = NavOptions.Builder()
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when (context.settings().toolbarPosition) {
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ToolbarPosition.TOP -> {
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navOptions.setEnterAnim(R.anim.fade_in)
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navOptions.setExitAnim(R.anim.fade_out)
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}
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ToolbarPosition.BOTTOM -> {
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navOptions.setEnterAnim(R.anim.fade_in_up)
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navOptions.setExitAnim(R.anim.fade_out_down)
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}
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}
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return navOptions.build()
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}
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}
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}
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