From 8c3ea7b556833024f919105d03dfe182dfcd73cf Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <noreply@madoka.volgo-balt.ru>
Date: Tue, 31 Oct 2017 13:37:31 +0300
Subject: offline: implement fullscreen video player for article view

---
 org.fox.ttrss/src/main/AndroidManifest.xml         |   1 +
 .../fox/ttrss/offline/OfflineArticleFragment.java  | 145 ++++++++++++++++++---
 .../fox/ttrss/offline/OfflineDetailActivity.java   |   8 ++
 3 files changed, 139 insertions(+), 15 deletions(-)

diff --git a/org.fox.ttrss/src/main/AndroidManifest.xml b/org.fox.ttrss/src/main/AndroidManifest.xml
index a8d91f93..da67d2fa 100755
--- a/org.fox.ttrss/src/main/AndroidManifest.xml
+++ b/org.fox.ttrss/src/main/AndroidManifest.xml
@@ -78,6 +78,7 @@
         </activity>
         <activity
             android:name=".offline.OfflineDetailActivity"
+            android:configChanges="keyboardHidden|orientation|screenSize"
             android:label="@string/app_name" >
         </activity>
         <activity
diff --git a/org.fox.ttrss/src/main/java/org/fox/ttrss/offline/OfflineArticleFragment.java b/org.fox.ttrss/src/main/java/org/fox/ttrss/offline/OfflineArticleFragment.java
index eb5e1f81..0b4b979b 100755
--- a/org.fox.ttrss/src/main/java/org/fox/ttrss/offline/OfflineArticleFragment.java
+++ b/org.fox.ttrss/src/main/java/org/fox/ttrss/offline/OfflineArticleFragment.java
@@ -6,6 +6,7 @@ import android.content.SharedPreferences;
 import android.database.Cursor;
 import android.graphics.Color;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
 import android.provider.BaseColumns;
@@ -20,16 +21,19 @@ import android.view.MenuItem;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
+import android.webkit.WebChromeClient;
 import android.webkit.WebSettings;
 import android.webkit.WebView;
 import android.webkit.WebView.HitTestResult;
 import android.webkit.WebViewClient;
+import android.widget.FrameLayout;
 import android.widget.ImageView;
 import android.widget.ScrollView;
 import android.widget.TextView;
 
 import com.shamanland.fab.ShowHideOnScroll;
 
+import org.fox.ttrss.ArticleFragment;
 import org.fox.ttrss.CommonActivity;
 import org.fox.ttrss.R;
 import org.fox.ttrss.util.ImageCacheService;
@@ -52,13 +56,80 @@ public class OfflineArticleFragment extends Fragment {
 	private SharedPreferences m_prefs;
 	private int m_articleId;
 	private boolean m_isCat = false; // FIXME use
+	private WebView m_web;
 	private Cursor m_cursor;
-	private OfflineActivity m_activity;
+	private OfflineDetailActivity m_activity;
+
+	protected View m_customView;
+	protected FrameLayout m_customViewContainer;
+	protected View m_contentView;
+	protected FSVideoChromeClient m_chromeClient;
+	protected View m_fab;
 	
 	public void initialize(int articleId) {
 		m_articleId = articleId;
 	}
 
+	private class FSVideoChromeClient extends WebChromeClient {
+		//protected View m_videoChildView;
+
+		private CustomViewCallback m_callback;
+
+		public FSVideoChromeClient(View container) {
+			super();
+
+		}
+
+		@Override
+		public void onShowCustomView(View view, CustomViewCallback callback) {
+			m_activity.getSupportActionBar().hide();
+
+			// if a view already exists then immediately terminate the new one
+			if (m_customView != null) {
+				callback.onCustomViewHidden();
+				return;
+			}
+			m_customView = view;
+			m_contentView.setVisibility(View.GONE);
+
+			m_customViewContainer.setVisibility(View.VISIBLE);
+			m_customViewContainer.addView(view);
+
+			if (m_fab != null) m_fab.setVisibility(View.GONE);
+
+			m_activity.showSidebar(false);
+
+			m_callback = callback;
+		}
+
+		@Override
+		public void onHideCustomView() {
+			super.onHideCustomView();
+
+			m_activity.getSupportActionBar().show();
+
+			if (m_customView == null)
+				return;
+
+			m_contentView.setVisibility(View.VISIBLE);
+			m_customViewContainer.setVisibility(View.GONE);
+
+			// Hide the custom view.
+			m_customView.setVisibility(View.GONE);
+
+			// Remove the custom view from its container.
+			m_customViewContainer.removeView(m_customView);
+			m_callback.onCustomViewHidden();
+
+			if (m_fab != null && m_prefs.getBoolean("enable_article_fab", true))
+				m_fab.setVisibility(View.VISIBLE);
+
+			m_customView = null;
+
+			m_activity.showSidebar(true);
+		}
+	}
+
 	@Override
 	public boolean onContextItemSelected(MenuItem item) {
 		/* AdapterContextMenuInfo info = (AdapterContextMenuInfo) item
@@ -134,6 +205,9 @@ public class OfflineArticleFragment extends Fragment {
 		m_cursor.moveToFirst();
 		
 		if (m_cursor.isFirst()) {
+			m_contentView = view.findViewById(R.id.article_scrollview);
+			m_customViewContainer = (FrameLayout) view.findViewById(R.id.article_fullscreen_video);
+
             final String link = m_cursor.getString(m_cursor.getColumnIndex("link"));
 
             NotifyingScrollView scrollView = (NotifyingScrollView) view.findViewById(R.id.article_scrollview);
@@ -237,14 +311,14 @@ public class OfflineArticleFragment extends Fragment {
 				note.setVisibility(View.GONE);
 			}
 			
-			final WebView web = (WebView)view.findViewById(R.id.article_content);
+			m_web = (WebView)view.findViewById(R.id.article_content);
 			
-			if (web != null) {
+			if (m_web != null) {
 				if (CommonActivity.THEME_DARK.equals(m_prefs.getString("theme", CommonActivity.THEME_DEFAULT))) {
-					web.setBackgroundColor(Color.BLACK);
+					m_web.setBackgroundColor(Color.BLACK);
 				}
 
-				web.setWebViewClient(new WebViewClient() {
+				m_web.setWebViewClient(new WebViewClient() {
 					@Override
 					public boolean shouldOverrideUrlLoading(WebView view, String url) {
 						try {
@@ -259,15 +333,15 @@ public class OfflineArticleFragment extends Fragment {
 						return false;
 					} });
 
-				web.setOnLongClickListener(new View.OnLongClickListener() {
+				m_web.setOnLongClickListener(new View.OnLongClickListener() {
                     @Override
                     public boolean onLongClick(View v) {
                         HitTestResult result = ((WebView) v).getHitTestResult();
 
                         if (result != null && (result.getType() == HitTestResult.IMAGE_TYPE || result.getType() == HitTestResult.SRC_IMAGE_ANCHOR_TYPE)) {
-                            registerForContextMenu(web);
-                            m_activity.openContextMenu(web);
-                            unregisterForContextMenu(web);
+                            registerForContextMenu(m_web);
+                            m_activity.openContextMenu(m_web);
+                            unregisterForContextMenu(m_web);
                             return true;
                         } else {
                             return false;
@@ -278,16 +352,25 @@ public class OfflineArticleFragment extends Fragment {
                 // prevent flicker in ics
                 if (!m_prefs.getBoolean("webview_hardware_accel", true)) {
                     if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) {
-                        web.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
+						m_web.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
                     }
                 }
 
                 String content;
                 String cssOverride = "";
 
-                WebSettings ws = web.getSettings();
+                WebSettings ws = m_web.getSettings();
                 ws.setSupportZoom(false);
 
+				if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+					ws.setJavaScriptEnabled(true);
+
+					m_chromeClient = new FSVideoChromeClient(getView());
+					m_web.setWebChromeClient(m_chromeClient);
+
+					ws.setMediaPlaybackRequiresUserGesture(false);
+				}
+
 				// we need to show "insecure" file:// urls
 				if (m_prefs.getBoolean("offline_image_cache_enabled", false)) {
 					ws.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
@@ -372,8 +455,8 @@ public class OfflineArticleFragment extends Fragment {
 					} catch (MalformedURLException e) {
 						//
 					}
-					
-					web.loadDataWithBaseURL(baseUrl, content, "text/html", "utf-8", null);
+
+					m_web.loadDataWithBaseURL(baseUrl, content, "text/html", "utf-8", null);
 				} catch (RuntimeException e) {					
 					e.printStackTrace();
 				}
@@ -423,13 +506,45 @@ public class OfflineArticleFragment extends Fragment {
 		return view;    	
 	}
 
+	@Override
+	public void onPause() {
+		super.onPause();
+
+		if (m_web != null) m_web.onPause();
+	}
+
+	public boolean inCustomView() {
+		return (m_customView != null);
+	}
+
 	@Override
 	public void onDestroy() {
 		super.onDestroy();	
 		
 		m_cursor.close();
 	}
-	
+
+	public void hideCustomView() {
+		if (m_chromeClient != null) {
+			m_chromeClient.onHideCustomView();
+		}
+	}
+
+	@Override
+	public void onResume() {
+		super.onResume();
+
+		if (m_web != null) m_web.onResume();
+	}
+
+	@Override
+	public void onStop() {
+		super.onStop();
+
+		if (inCustomView()) {
+			hideCustomView();
+		}
+	}
 	@Override
 	public void onSaveInstanceState (Bundle out) {		
 		super.onSaveInstanceState(out);
@@ -443,7 +558,7 @@ public class OfflineArticleFragment extends Fragment {
 		
 		m_prefs = PreferenceManager.getDefaultSharedPreferences(getActivity().getApplicationContext());
 
-		m_activity = (OfflineActivity) activity;
+		m_activity = (OfflineDetailActivity) activity;
 		
 	}
 }
diff --git a/org.fox.ttrss/src/main/java/org/fox/ttrss/offline/OfflineDetailActivity.java b/org.fox.ttrss/src/main/java/org/fox/ttrss/offline/OfflineDetailActivity.java
index 4b484566..99fb83a4 100644
--- a/org.fox.ttrss/src/main/java/org/fox/ttrss/offline/OfflineDetailActivity.java
+++ b/org.fox.ttrss/src/main/java/org/fox/ttrss/offline/OfflineDetailActivity.java
@@ -218,4 +218,12 @@ public class OfflineDetailActivity extends OfflineActivity implements OfflineHea
 		}
 
 	}
+
+	public void showSidebar(boolean show) {
+		if (!isSmallScreen() && !isPortrait()) {
+			findViewById(R.id.headlines_fragment).setVisibility(show ? View.VISIBLE : View.GONE);
+			invalidateOptionsMenu();
+		}
+	}
+
 }
-- 
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