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Diffstat (limited to 'app/src/main/kotlin/com/pitchedapps/frost/web/FrostWebViewCore.kt')
| -rw-r--r-- | app/src/main/kotlin/com/pitchedapps/frost/web/FrostWebViewCore.kt | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/app/src/main/kotlin/com/pitchedapps/frost/web/FrostWebViewCore.kt b/app/src/main/kotlin/com/pitchedapps/frost/web/FrostWebViewCore.kt deleted file mode 100644 index 15383a50..00000000 --- a/app/src/main/kotlin/com/pitchedapps/frost/web/FrostWebViewCore.kt +++ /dev/null @@ -1,203 +0,0 @@ -package com.pitchedapps.frost.web - -import android.animation.ValueAnimator -import android.annotation.SuppressLint -import android.content.Context -import android.support.v4.view.NestedScrollingChild -import android.support.v4.view.NestedScrollingChildHelper -import android.support.v4.view.ViewCompat -import android.util.AttributeSet -import android.view.MotionEvent -import android.view.animation.DecelerateInterpolator -import android.webkit.WebView -import ca.allanwang.kau.utils.circularReveal -import ca.allanwang.kau.utils.fadeIn -import ca.allanwang.kau.utils.fadeOut -import ca.allanwang.kau.utils.isVisible -import com.pitchedapps.frost.facebook.FbItem -import com.pitchedapps.frost.utils.Prefs -import io.reactivex.Scheduler -import io.reactivex.android.schedulers.AndroidSchedulers -import io.reactivex.disposables.Disposable -import io.reactivex.subjects.BehaviorSubject -import io.reactivex.subjects.PublishSubject - -/** - * Created by Allan Wang on 2017-05-29. - * - */ -class FrostWebViewCore @JvmOverloads constructor( - context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0 -) : WebView(context, attrs, defStyleAttr), NestedScrollingChild { - - private val childHelper = NestedScrollingChildHelper(this) - private var lastY: Int = 0 - private val scrollOffset = IntArray(2) - private val scrollConsumed = IntArray(2) - private var nestedOffsetY: Int = 0 - val progressObservable: PublishSubject<Int> // Keeps track of every progress change - val refreshObservable: PublishSubject<Boolean> // Only emits on page loads - val titleObservable: BehaviorSubject<String> // Only emits on different non http titles - - - var baseUrl: String? = null - var baseEnum: FbItem? = null //only viewpager items should pass the base enum - internal lateinit var frostWebClient: FrostWebViewClient - - /** - * Wrapper to the main userAgentString to cache it. - * This decouples it from the UiThread - * - * Note that this defaults to null, but the main purpose is to - * check if we've set our own agent. - * - * A null value may be interpreted as the default value - */ - var userAgentString: String? = null - get() = field - set(value) { - field = value - settings.userAgentString = value - } - - init { - isNestedScrollingEnabled = true - progressObservable = PublishSubject.create<Int>() - refreshObservable = PublishSubject.create<Boolean>() - titleObservable = BehaviorSubject.create<String>() - } - - fun loadUrl(url: String?, animate: Boolean) { - if (url == null) return - registerTransition(animate) - super.loadUrl(url) - } - - fun reload(animate: Boolean) { - registerTransition(animate) - super.reload() - } - - /** - * Hook onto the refresh observable for one cycle - * Animate toggles between the fancy ripple and the basic fade - * The cycle only starts on the first load since there may have been another process when this is registered - */ - fun registerTransition(animate: Boolean) { - var dispose: Disposable? = null - var loading = false - dispose = refreshObservable.subscribeOn(AndroidSchedulers.mainThread()).subscribe { - if (it) { - loading = true - if (isVisible) fadeOut(duration = 200L) - } else if (loading) { - dispose?.dispose() - if (animate && Prefs.animate) circularReveal(offset = WEB_LOAD_DELAY) - else fadeIn(duration = 100L) - } - } - } - - fun loadBaseUrl(animate: Boolean = true) { - loadUrl(baseUrl, animate) - } - - fun addTitleListener(subscriber: (title: String) -> Unit, scheduler: Scheduler = AndroidSchedulers.mainThread()): Disposable - = titleObservable.observeOn(scheduler).subscribe(subscriber) - - /** - * Handle nested scrolling against SwipeRecyclerView - * Courtesy of takahirom - * - * https://github.com/takahirom/webview-in-coordinatorlayout/blob/master/app/src/main/java/com/github/takahirom/webview_in_coodinator_layout/NestedWebView.java - */ - @SuppressLint("ClickableViewAccessibility") - override fun onTouchEvent(ev: MotionEvent): Boolean { - val event = MotionEvent.obtain(ev) - val action = event.action - if (action == MotionEvent.ACTION_DOWN) - nestedOffsetY = 0 - val eventY = event.y.toInt() - event.offsetLocation(0f, nestedOffsetY.toFloat()) - val returnValue: Boolean - when (action) { - MotionEvent.ACTION_MOVE -> { - var deltaY = lastY - eventY - // NestedPreScroll - if (dispatchNestedPreScroll(0, deltaY, scrollConsumed, scrollOffset)) { - deltaY -= scrollConsumed[1] - event.offsetLocation(0f, -scrollOffset[1].toFloat()) - nestedOffsetY += scrollOffset[1] - } - lastY = eventY - scrollOffset[1] - returnValue = super.onTouchEvent(event) - // NestedScroll - if (dispatchNestedScroll(0, scrollOffset[1], 0, deltaY, scrollOffset)) { - event.offsetLocation(0f, scrollOffset[1].toFloat()) - nestedOffsetY += scrollOffset[1] - lastY -= scrollOffset[1] - } - } - MotionEvent.ACTION_DOWN -> { - returnValue = super.onTouchEvent(event) - lastY = eventY - startNestedScroll(ViewCompat.SCROLL_AXIS_VERTICAL) - } - MotionEvent.ACTION_UP, MotionEvent.ACTION_CANCEL -> { - returnValue = super.onTouchEvent(event) - stopNestedScroll() - } - else -> return false - } - return returnValue - } - - /** - * If webview is already at the top, refresh - * Otherwise scroll to top - */ - fun scrollOrRefresh() { - if (scrollY < 5) loadBaseUrl() - else scrollToTop() - } - - fun scrollToTop() { - flingScroll(0, 0) // stop fling - if (scrollY > 10000) { - scrollTo(0, 0) - } else { - ValueAnimator.ofInt(scrollY, 0).apply { - duration = Math.min(scrollY, 500).toLong() - interpolator = DecelerateInterpolator() - addUpdateListener { scrollY = it.animatedValue as Int } - start() - } - } - } - - // Nested Scroll implements - override fun setNestedScrollingEnabled(enabled: Boolean) { - childHelper.isNestedScrollingEnabled = enabled - } - - override fun isNestedScrollingEnabled() = childHelper.isNestedScrollingEnabled - - override fun startNestedScroll(axes: Int) = childHelper.startNestedScroll(axes) - - override fun stopNestedScroll() = childHelper.stopNestedScroll() - - override fun hasNestedScrollingParent() = childHelper.hasNestedScrollingParent() - - override fun dispatchNestedScroll(dxConsumed: Int, dyConsumed: Int, dxUnconsumed: Int, dyUnconsumed: Int, offsetInWindow: IntArray?) - = childHelper.dispatchNestedScroll(dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed, offsetInWindow) - - override fun dispatchNestedPreScroll(dx: Int, dy: Int, consumed: IntArray?, offsetInWindow: IntArray?) - = childHelper.dispatchNestedPreScroll(dx, dy, consumed, offsetInWindow) - - override fun dispatchNestedFling(velocityX: Float, velocityY: Float, consumed: Boolean) - = childHelper.dispatchNestedFling(velocityX, velocityY, consumed) - - override fun dispatchNestedPreFling(velocityX: Float, velocityY: Float) - = childHelper.dispatchNestedPreFling(velocityX, velocityY) - -}
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