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package app.fedilab.android.peertube.webview;
/* Copyright 2023 Thomas Schneider
*
* This file is a part of Fedilab
*
* This program is free software; you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software Foundation; either version 3 of the
* License, or (at your option) any later version.
*
* Fedilab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*
* You should have received a copy of the GNU General Public License along with Fedilab; if not,
* see <http://www.gnu.org/licenses>. */
import android.app.Activity;
import android.graphics.Bitmap;
import android.media.MediaPlayer;
import android.view.LayoutInflater;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.TextView;
import androidx.appcompat.app.ActionBar;
import androidx.appcompat.app.AppCompatActivity;
import app.fedilab.android.R;
public class MastalabWebChromeClient extends WebChromeClient implements MediaPlayer.OnCompletionListener, MediaPlayer.OnErrorListener {
private final WebView webView;
private final View activityNonVideoView;
private final ViewGroup activityVideoView;
private final ProgressBar pbar;
private final Activity activity;
private FrameLayout videoViewContainer;
private CustomViewCallback videoViewCallback;
private ToggledFullscreenCallback toggledFullscreenCallback;
private boolean isVideoFullscreen;
public MastalabWebChromeClient(Activity activity, WebView webView, FrameLayout activityNonVideoView, ViewGroup activityVideoView) {
this.activity = activity;
this.isVideoFullscreen = false;
this.webView = webView;
this.pbar = activity.findViewById(R.id.progress_bar);
this.activityNonVideoView = activityNonVideoView;
this.activityVideoView = activityVideoView;
}
@Override
public void onProgressChanged(WebView view, int progress) {
if (pbar != null) {
if (progress < 100 && pbar.getVisibility() == ProgressBar.GONE) {
pbar.setVisibility(ProgressBar.VISIBLE);
}
pbar.setProgress(progress);
if (progress == 100) {
pbar.setVisibility(ProgressBar.GONE);
}
}
}
@Override
public Bitmap getDefaultVideoPoster() {
return Bitmap.createBitmap(50, 50, Bitmap.Config.ARGB_8888);
}
@Override
public void onReceivedIcon(WebView view, Bitmap icon) {
super.onReceivedIcon(view, icon);
LayoutInflater mInflater = LayoutInflater.from(activity);
ActionBar actionBar = ((AppCompatActivity) activity).getSupportActionBar();
if (actionBar != null) {
View webview_actionbar = mInflater.inflate(R.layout.webview_actionbar, new LinearLayout(activity), false);
TextView webview_title = webview_actionbar.findViewById(R.id.webview_title);
webview_title.setText(view.getTitle());
ImageView webview_favicon = webview_actionbar.findViewById(R.id.webview_favicon);
if (icon != null)
webview_favicon.setImageBitmap(icon);
actionBar.setCustomView(webview_actionbar);
actionBar.setDisplayShowCustomEnabled(true);
} else {
activity.setTitle(view.getTitle());
}
}
/**
* Set a callback that will be fired when the video starts or finishes displaying using a custom view (typically full-screen)
*
* @param callback A VideoEnabledWebChromeClient.ToggledFullscreenCallback callback
*/
public void setOnToggledFullscreen(ToggledFullscreenCallback callback) {
this.toggledFullscreenCallback = callback;
}
//FULLSCREEN VIDEO
//Code from https://stackoverflow.com/a/16179544/3197259
@Override
public void onShowCustomView(View view, CustomViewCallback callback) {
if (view instanceof FrameLayout) {
if (((AppCompatActivity) activity).getSupportActionBar() != null)
((AppCompatActivity) activity).getSupportActionBar().hide();
// A video wants to be shown
FrameLayout frameLayout = (FrameLayout) view;
View focusedChild = frameLayout.getFocusedChild();
// Save video related variables
isVideoFullscreen = true;
this.videoViewContainer = frameLayout;
this.videoViewCallback = callback;
// Hide the non-video view, add the video view, and show it
activityNonVideoView.setVisibility(View.INVISIBLE);
activityVideoView.addView(videoViewContainer, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
activityVideoView.setVisibility(View.VISIBLE);
if (focusedChild instanceof android.widget.VideoView) {
// android.widget.VideoView (typically API level <11)
android.widget.VideoView videoView = (android.widget.VideoView) focusedChild;
// Handle all the required events
videoView.setOnCompletionListener(this);
videoView.setOnErrorListener(this);
} else {
// Other classes, including:
// - android.webkit.HTML5VideoFullScreen$VideoSurfaceView, which inherits from android.view.SurfaceView (typically API level 11-18)
// - android.webkit.HTML5VideoFullScreen$VideoTextureView, which inherits from android.view.TextureView (typically API level 11-18)
// - com.android.org.chromium.content.browser.ContentVideoView$VideoSurfaceView, which inherits from android.view.SurfaceView (typically API level 19+)
// Handle HTML5 video ended event only if the class is a SurfaceView
// Test case: TextureView of Sony Xperia T API level 16 doesn't work fullscreen when loading the javascript below
if (webView != null && webView.getSettings().getJavaScriptEnabled() && focusedChild instanceof SurfaceView) {
// Run javascript code that detects the video end and notifies the Javascript interface
String js = "javascript:";
js += "var _ytrp_html5_video_last;";
js += "var _ytrp_html5_video = document.getElementsByTagName('video')[0];";
js += "if (_ytrp_html5_video != undefined && _ytrp_html5_video != _ytrp_html5_video_last) {";
{
js += "_ytrp_html5_video_last = _ytrp_html5_video;";
js += "function _ytrp_html5_video_ended() {";
{
js += "_VideoEnabledWebView.notifyVideoEnd();"; // Must match Javascript interface name and method of VideoEnableWebView
}
js += "}";
js += "_ytrp_html5_video.addEventListener('ended', _ytrp_html5_video_ended);";
}
js += "}";
webView.loadUrl(js);
}
}
// Notify full-screen change
if (toggledFullscreenCallback != null) {
toggledFullscreenCallback.toggledFullscreen(true);
}
}
}
// Available in API level 14+, deprecated in API level 18+
@Override
@SuppressWarnings("deprecation")
public void onShowCustomView(View view, int requestedOrientation, CustomViewCallback callback) {
onShowCustomView(view, callback);
}
@Override
public void onHideCustomView() {
if (((AppCompatActivity) activity).getSupportActionBar() != null)
((AppCompatActivity) activity).getSupportActionBar().show();
// This method should be manually called on video end in all cases because it's not always called automatically.
// This method must be manually called on back key press (from this class' onBackPressed() method).
if (isVideoFullscreen) {
// Hide the video view, remove it, and show the non-video view
activityVideoView.setVisibility(View.INVISIBLE);
activityVideoView.removeView(videoViewContainer);
activityNonVideoView.setVisibility(View.VISIBLE);
// Call back (only in API level <19, because in API level 19+ with chromium webview it crashes)
if (videoViewCallback != null && !videoViewCallback.getClass().getName().contains(".chromium.")) {
videoViewCallback.onCustomViewHidden();
}
// Reset video related variables
isVideoFullscreen = false;
videoViewContainer = null;
videoViewCallback = null;
// Notify full-screen change
if (toggledFullscreenCallback != null) {
toggledFullscreenCallback.toggledFullscreen(false);
}
}
}
// Video will start loading
@Override
public View getVideoLoadingProgressView() {
return super.getVideoLoadingProgressView();
}
// Video finished playing, only called in the case of android.widget.VideoView (typically API level <11)
@Override
public void onCompletion(MediaPlayer mp) {
onHideCustomView();
}
// Error while playing video, only called in the case of android.widget.VideoView (typically API level <11)
@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
return false; // By returning false, onCompletion() will be called
}
public interface ToggledFullscreenCallback {
void toggledFullscreen(boolean fullscreen);
}
}
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