235 lines
10 KiB
Java
235 lines
10 KiB
Java
package app.fedilab.android.webview;
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/* Copyright 2017 Thomas Schneider
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*
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* This file is a part of Fedilab
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* Fedilab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with Fedilab; if not,
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* see <http://www.gnu.org/licenses>. */
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import android.app.Activity;
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import android.graphics.Bitmap;
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import android.media.MediaPlayer;
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import android.view.LayoutInflater;
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import android.view.SurfaceView;
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import android.view.View;
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import android.view.ViewGroup;
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import android.webkit.WebChromeClient;
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import android.webkit.WebView;
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import android.widget.FrameLayout;
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import android.widget.ImageView;
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import android.widget.LinearLayout;
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import android.widget.ProgressBar;
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import android.widget.TextView;
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import androidx.appcompat.app.ActionBar;
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import androidx.appcompat.app.AppCompatActivity;
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import app.fedilab.android.R;
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/**
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* Created by Thomas on 25/06/2017.
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* Custom WebChromeClient
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*/
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public class MastalabWebChromeClient extends WebChromeClient implements MediaPlayer.OnCompletionListener, MediaPlayer.OnErrorListener {
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private FrameLayout videoViewContainer;
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private WebChromeClient.CustomViewCallback videoViewCallback;
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private ToggledFullscreenCallback toggledFullscreenCallback;
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private WebView webView;
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private View activityNonVideoView;
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private ViewGroup activityVideoView;
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private ProgressBar pbar;
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private boolean isVideoFullscreen;
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private Activity activity;
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public MastalabWebChromeClient(Activity activity, WebView webView, FrameLayout activityNonVideoView, ViewGroup activityVideoView) {
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this.activity = activity;
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this.isVideoFullscreen = false;
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this.webView = webView;
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this.pbar = activity.findViewById(R.id.progress_bar);
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this.activityNonVideoView = activityNonVideoView;
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this.activityVideoView = activityVideoView;
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}
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@Override
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public void onProgressChanged(WebView view, int progress) {
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if (pbar != null) {
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if (progress < 100 && pbar.getVisibility() == ProgressBar.GONE) {
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pbar.setVisibility(ProgressBar.VISIBLE);
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}
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pbar.setProgress(progress);
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if (progress == 100) {
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pbar.setVisibility(ProgressBar.GONE);
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}
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}
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}
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@Override
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public Bitmap getDefaultVideoPoster() {
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return Bitmap.createBitmap(50, 50, Bitmap.Config.ARGB_8888);
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}
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@Override
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public void onReceivedIcon(WebView view, Bitmap icon) {
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super.onReceivedIcon(view, icon);
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LayoutInflater mInflater = LayoutInflater.from(activity);
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ActionBar actionBar = ((AppCompatActivity) activity).getSupportActionBar();
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if (actionBar != null) {
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View webview_actionbar = mInflater.inflate(R.layout.webview_actionbar, new LinearLayout(activity), false);
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TextView webview_title = webview_actionbar.findViewById(R.id.webview_title);
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webview_title.setText(view.getTitle());
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ImageView webview_favicon = webview_actionbar.findViewById(R.id.webview_favicon);
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if (icon != null)
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webview_favicon.setImageBitmap(icon);
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actionBar.setCustomView(webview_actionbar);
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actionBar.setDisplayShowCustomEnabled(true);
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} else {
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activity.setTitle(view.getTitle());
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}
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}
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/**
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* Set a callback that will be fired when the video starts or finishes displaying using a custom view (typically full-screen)
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*
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* @param callback A VideoEnabledWebChromeClient.ToggledFullscreenCallback callback
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*/
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public void setOnToggledFullscreen(ToggledFullscreenCallback callback) {
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this.toggledFullscreenCallback = callback;
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}
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//FULLSCREEN VIDEO
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//Code from https://stackoverflow.com/a/16179544/3197259
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@Override
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public void onShowCustomView(View view, WebChromeClient.CustomViewCallback callback) {
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if (view instanceof FrameLayout) {
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if (((AppCompatActivity) activity).getSupportActionBar() != null)
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//noinspection ConstantConditions
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((AppCompatActivity) activity).getSupportActionBar().hide();
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// A video wants to be shown
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FrameLayout frameLayout = (FrameLayout) view;
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View focusedChild = frameLayout.getFocusedChild();
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// Save video related variables
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isVideoFullscreen = true;
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this.videoViewContainer = frameLayout;
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this.videoViewCallback = callback;
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// Hide the non-video view, add the video view, and show it
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activityNonVideoView.setVisibility(View.INVISIBLE);
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activityVideoView.addView(videoViewContainer, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
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activityVideoView.setVisibility(View.VISIBLE);
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if (focusedChild instanceof android.widget.VideoView) {
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// android.widget.VideoView (typically API level <11)
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android.widget.VideoView videoView = (android.widget.VideoView) focusedChild;
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// Handle all the required events
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videoView.setOnCompletionListener(this);
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videoView.setOnErrorListener(this);
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} else {
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// Other classes, including:
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// - android.webkit.HTML5VideoFullScreen$VideoSurfaceView, which inherits from android.view.SurfaceView (typically API level 11-18)
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// - android.webkit.HTML5VideoFullScreen$VideoTextureView, which inherits from android.view.TextureView (typically API level 11-18)
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// - com.android.org.chromium.content.browser.ContentVideoView$VideoSurfaceView, which inherits from android.view.SurfaceView (typically API level 19+)
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// Handle HTML5 video ended event only if the class is a SurfaceView
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// Test case: TextureView of Sony Xperia T API level 16 doesn't work fullscreen when loading the javascript below
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if (webView != null && webView.getSettings().getJavaScriptEnabled() && focusedChild instanceof SurfaceView) {
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// Run javascript code that detects the video end and notifies the Javascript interface
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String js = "javascript:";
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js += "var _ytrp_html5_video_last;";
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js += "var _ytrp_html5_video = document.getElementsByTagName('video')[0];";
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js += "if (_ytrp_html5_video != undefined && _ytrp_html5_video != _ytrp_html5_video_last) {";
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{
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js += "_ytrp_html5_video_last = _ytrp_html5_video;";
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js += "function _ytrp_html5_video_ended() {";
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{
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js += "_VideoEnabledWebView.notifyVideoEnd();"; // Must match Javascript interface name and method of VideoEnableWebView
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}
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js += "}";
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js += "_ytrp_html5_video.addEventListener('ended', _ytrp_html5_video_ended);";
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}
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js += "}";
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webView.loadUrl(js);
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}
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}
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// Notify full-screen change
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if (toggledFullscreenCallback != null) {
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toggledFullscreenCallback.toggledFullscreen(true);
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}
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}
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}
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// Available in API level 14+, deprecated in API level 18+
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@Override
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@SuppressWarnings("deprecation")
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public void onShowCustomView(View view, int requestedOrientation, WebChromeClient.CustomViewCallback callback) {
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onShowCustomView(view, callback);
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}
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@Override
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public void onHideCustomView() {
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if (((AppCompatActivity) activity).getSupportActionBar() != null)
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//noinspection ConstantConditions
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((AppCompatActivity) activity).getSupportActionBar().show();
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// This method should be manually called on video end in all cases because it's not always called automatically.
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// This method must be manually called on back key press (from this class' onBackPressed() method).
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if (isVideoFullscreen) {
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// Hide the video view, remove it, and show the non-video view
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activityVideoView.setVisibility(View.INVISIBLE);
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activityVideoView.removeView(videoViewContainer);
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activityNonVideoView.setVisibility(View.VISIBLE);
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// Call back (only in API level <19, because in API level 19+ with chromium webview it crashes)
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if (videoViewCallback != null && !videoViewCallback.getClass().getName().contains(".chromium.")) {
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videoViewCallback.onCustomViewHidden();
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}
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// Reset video related variables
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isVideoFullscreen = false;
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videoViewContainer = null;
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videoViewCallback = null;
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// Notify full-screen change
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if (toggledFullscreenCallback != null) {
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toggledFullscreenCallback.toggledFullscreen(false);
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}
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}
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}
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// Video will start loading
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@Override
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public View getVideoLoadingProgressView() {
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return super.getVideoLoadingProgressView();
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}
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// Video finished playing, only called in the case of android.widget.VideoView (typically API level <11)
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@Override
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public void onCompletion(MediaPlayer mp) {
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onHideCustomView();
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}
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// Error while playing video, only called in the case of android.widget.VideoView (typically API level <11)
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@Override
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public boolean onError(MediaPlayer mp, int what, int extra) {
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return false; // By returning false, onCompletion() will be called
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}
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public interface ToggledFullscreenCallback {
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void toggledFullscreen(boolean fullscreen);
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}
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}
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