From 4e763be6ec84fe411860ef6f466de6cc39b0d56b Mon Sep 17 00:00:00 2001
From: Daniel Dominguez <danielfromarg@gmail.com>
Date: Wed, 20 Jun 2018 17:39:29 -0300
Subject: [PATCH] Add Java module to keep the screen awake when needed.

---
 app/src/page/file/view.js                     |  6 +++
 .../browser/reactmodules/UtilityModule.java   | 51 +++++++++++++++++++
 .../reactpackages/LbryReactPackage.java       |  4 +-
 3 files changed, 60 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/io/lbry/browser/reactmodules/UtilityModule.java

diff --git a/app/src/page/file/view.js b/app/src/page/file/view.js
index 00f6944..f063e64 100644
--- a/app/src/page/file/view.js
+++ b/app/src/page/file/view.js
@@ -56,6 +56,9 @@ class FilePage extends React.PureComponent {
     if (NativeModules.Mixpanel) {
       NativeModules.Mixpanel.track('Open File Page', { Uri: uri });
     }
+    if (NativeModules.UtilityModule) {
+      NativeModules.UtilityModule.keepAwakeOn();
+    }
   }
 
   componentDidUpdate() {
@@ -125,6 +128,9 @@ class FilePage extends React.PureComponent {
     StatusBar.setHidden(false);
     if (NativeModules.ScreenOrientation) {
       NativeModules.ScreenOrientation.unlockOrientation();
+    }    
+    if (NativeModules.UtilityModule) {
+      NativeModules.UtilityModule.keepAwakeOff();
     }
   }
 
diff --git a/src/main/java/io/lbry/browser/reactmodules/UtilityModule.java b/src/main/java/io/lbry/browser/reactmodules/UtilityModule.java
new file mode 100644
index 0000000..083d8c8
--- /dev/null
+++ b/src/main/java/io/lbry/browser/reactmodules/UtilityModule.java
@@ -0,0 +1,51 @@
+package io.lbry.browser.reactmodules;
+
+import android.app.Activity;
+import android.content.Context;
+import android.view.WindowManager;
+
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.bridge.ReactContextBaseJavaModule;
+import com.facebook.react.bridge.ReactMethod;
+
+public class UtilityModule extends ReactContextBaseJavaModule {
+    private Context context;
+
+    public UtilityModule(ReactApplicationContext reactContext) {
+        super(reactContext);
+        this.context = reactContext;
+    }
+
+    @Override
+    public String getName() {
+        return "UtilityModule";
+    }
+
+    @ReactMethod
+    public void keepAwakeOn() {
+      final Activity activity = getCurrentActivity();
+
+      if (activity != null) {
+        activity.runOnUiThread(new Runnable() {
+          @Override
+          public void run() {
+            activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+          }
+        });
+      }
+    }
+
+    @ReactMethod
+    public void keepAwakeOff() {
+      final Activity activity = getCurrentActivity();
+
+      if (activity != null) {
+        activity.runOnUiThread(new Runnable() {
+          @Override
+          public void run() {
+            activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+          }
+        });
+      }
+    }
+}
diff --git a/src/main/java/io/lbry/browser/reactpackages/LbryReactPackage.java b/src/main/java/io/lbry/browser/reactpackages/LbryReactPackage.java
index 6fa4c9f..a1c7eba 100644
--- a/src/main/java/io/lbry/browser/reactpackages/LbryReactPackage.java
+++ b/src/main/java/io/lbry/browser/reactpackages/LbryReactPackage.java
@@ -11,6 +11,7 @@ import io.lbry.browser.reactmodules.FirstRunModule;
 import io.lbry.browser.reactmodules.MixpanelModule;
 import io.lbry.browser.reactmodules.ScreenOrientationModule;
 import io.lbry.browser.reactmodules.VersionInfoModule;
+import io.lbry.browser.reactmodules.UtilityModule;;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -31,8 +32,9 @@ public class LbryReactPackage implements ReactPackage {
         modules.add(new FirstRunModule(reactContext));
         modules.add(new MixpanelModule(reactContext));
         modules.add(new ScreenOrientationModule(reactContext));
+        modules.add(new UtilityModule(reactContext));
         modules.add(new VersionInfoModule(reactContext));
 
         return modules;
     }
-}
\ No newline at end of file
+}