Add mojom interface to android for day zero experience

2024-07-17 18:42:12 +05:30
parent 1faf0df73e
commit 9f4ba1428a
8 changed files with 208 additions and 0 deletions
@@ -0,0 +1,80 @@
+/* Copyright (c) 2024 The Brave Authors. All rights reserved.
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+package org.chromium.chrome.browser.day_zero;
+
+import org.jni_zero.JNINamespace;
+import org.jni_zero.NativeMethods;
+
+import org.chromium.content_public.browser.BrowserContextHandle;
+import org.chromium.day_zero.mojom.DayZeroBrowserUiExpt;
+import org.chromium.mojo.bindings.ConnectionErrorHandler;
+import org.chromium.mojo.bindings.Interface;
+import org.chromium.mojo.bindings.Interface.Proxy.Handler;
+import org.chromium.mojo.system.MessagePipeHandle;
+import org.chromium.mojo.system.MojoException;
+import org.chromium.mojo.system.impl.CoreImpl;
+
+/** Helper to interact with native DayZeroBrowserUiExpt. */
+@JNINamespace("day_zero")
+public class DayZeroMojomHelper implements ConnectionErrorHandler {
+    private long mNativeDayZeroBrowserUiExpt;
+    DayZeroBrowserUiExpt mDayZeroBroserUiExptHelper;
+
+    private static final Object sLock = new Object();
+    private static DayZeroMojomHelper sInstance;
+
+    public static DayZeroMojomHelper getInstance(BrowserContextHandle browserContextHandle) {
+        synchronized (sLock) {
+            if (sInstance == null) {
+                sInstance = new DayZeroMojomHelper(browserContextHandle);
+            }
+        }
+        return sInstance;
+    }
+
+    private DayZeroMojomHelper(BrowserContextHandle browserContextHandle) {
+        mNativeDayZeroBrowserUiExpt = DayZeroMojomHelperJni.get().init(browserContextHandle);
+        long nativeHandle =
+                DayZeroMojomHelperJni.get()
+                        .getInterfaceToAndroidHelper(mNativeDayZeroBrowserUiExpt);
+        MessagePipeHandle handle =
+                CoreImpl.getInstance().acquireNativeHandle(nativeHandle).toMessagePipeHandle();
+        mDayZeroBroserUiExptHelper = DayZeroBrowserUiExpt.MANAGER.attachProxy(handle, 0);
+        Handler handler = ((Interface.Proxy) mDayZeroBroserUiExptHelper).getProxyHandler();
+        handler.setErrorHandler(this);
+    }
+
+    private void destroy() {
+        synchronized (sLock) {
+            sInstance = null;
+            if (mNativeDayZeroBrowserUiExpt == 0 && mDayZeroBroserUiExptHelper == null) {
+                return;
+            }
+            mDayZeroBroserUiExptHelper.close();
+            mDayZeroBroserUiExptHelper = null;
+            DayZeroMojomHelperJni.get().destroy(mNativeDayZeroBrowserUiExpt);
+            mNativeDayZeroBrowserUiExpt = 0;
+        }
+    }
+
+    public void isDayZeroExpt(DayZeroBrowserUiExpt.IsDayZeroExpt_Response callback) {
+        mDayZeroBroserUiExptHelper.isDayZeroExpt(callback);
+    }
+
+    @Override
+    public void onConnectionError(MojoException e) {
+        destroy();
+    }
+
+    @NativeMethods
+    public interface Natives {
+        long init(BrowserContextHandle browserContextHandle);
+
+        void destroy(long nativeDayZeroBrowserUiExpt);
+
+        long getInterfaceToAndroidHelper(long nativeDayZeroBrowserUiExpt);
+    }
+}