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Side by Side Diff: android_webview/java/src/org/chromium/android_webview/PlatformServiceBridge.java

Issue 2800833003: Revert of Android: Remove GetApplicationContext part 2 (Closed)
Patch Set: Created 3 years, 8 months ago
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1 // Copyright 2015 The Chromium Authors. All rights reserved. 1 // Copyright 2015 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 package org.chromium.android_webview; 5 package org.chromium.android_webview;
6 6
7 import android.content.Context; 7 import android.content.Context;
8 import android.webkit.ValueCallback; 8 import android.webkit.ValueCallback;
9 9
10 import org.chromium.base.ContextUtils;
11 import org.chromium.base.Log; 10 import org.chromium.base.Log;
12 import org.chromium.base.ThreadUtils; 11 import org.chromium.base.ThreadUtils;
13 12
14 import java.lang.reflect.InvocationTargetException; 13 import java.lang.reflect.InvocationTargetException;
15 14
16 /** 15 /**
17 * This class manages platform-specific services. (i.e. Google Services) The pla tform 16 * This class manages platform-specific services. (i.e. Google Services) The pla tform
18 * should extend this class and use this base class to fetch their specialized v ersion. 17 * should extend this class and use this base class to fetch their specialized v ersion.
19 */ 18 */
20 public class PlatformServiceBridge { 19 public class PlatformServiceBridge {
21 private static final String TAG = "PlatformServiceBrid-"; 20 private static final String TAG = "PlatformServiceBrid-";
22 private static final String PLATFORM_SERVICE_BRIDGE = 21 private static final String PLATFORM_SERVICE_BRIDGE =
23 "com.android.webview.chromium.PlatformServiceBridgeGoogle"; 22 "com.android.webview.chromium.PlatformServiceBridgeGoogle";
24 23
25 // Only written by getOrCreateInstance on the UI thread (aside from injectIn stance, for 24 // Only written by getOrCreateInstance on the UI thread (aside from injectIn stance, for
26 // testing), but read by getInstance on arbitrary threads. 25 // testing), but read by getInstance on arbitrary threads.
27 private static volatile PlatformServiceBridge sInstance; 26 private static volatile PlatformServiceBridge sInstance;
28 27
29 protected PlatformServiceBridge() {} 28 protected PlatformServiceBridge() {}
30 29
31 public static PlatformServiceBridge getOrCreateInstance() { 30 public static PlatformServiceBridge getOrCreateInstance(Context context) {
32 // Just to avoid race conditions on sInstance - nothing special about th e UI thread. 31 // Just to avoid race conditions on sInstance - nothing special about th e UI thread.
33 ThreadUtils.assertOnUiThread(); 32 ThreadUtils.assertOnUiThread();
34 33
35 if (sInstance != null) return sInstance; 34 if (sInstance != null) return sInstance;
36 35
37 // Try to get a specialized service bridge. 36 // Try to get a specialized service bridge.
38 try { 37 try {
39 Class<?> cls = Class.forName(PLATFORM_SERVICE_BRIDGE); 38 Class<?> cls = Class.forName(PLATFORM_SERVICE_BRIDGE);
40 sInstance = (PlatformServiceBridge) cls.getDeclaredConstructor(Conte xt.class) 39 sInstance = (PlatformServiceBridge) cls.getDeclaredConstructor(Conte xt.class)
41 .newInstance(ContextUtils.getApplicationContext( )); 40 .newInstance(context);
42 return sInstance; 41 return sInstance;
43 } catch (ClassNotFoundException e) { 42 } catch (ClassNotFoundException e) {
44 // This is not an error; it just means this device doesn't have spec ialized 43 // This is not an error; it just means this device doesn't have spec ialized
45 // services. 44 // services.
46 } catch (IllegalAccessException | IllegalArgumentException | Instantiati onException 45 } catch (IllegalAccessException | IllegalArgumentException | Instantiati onException
47 | NoSuchMethodException e) { 46 | NoSuchMethodException e) {
48 Log.e(TAG, "Failed to get " + PLATFORM_SERVICE_BRIDGE + ": " + e); 47 Log.e(TAG, "Failed to get " + PLATFORM_SERVICE_BRIDGE + ": " + e);
49 } catch (InvocationTargetException e) { 48 } catch (InvocationTargetException e) {
50 Log.e(TAG, "Failed invocation to get " + PLATFORM_SERVICE_BRIDGE + " :", e.getCause()); 49 Log.e(TAG, "Failed invocation to get " + PLATFORM_SERVICE_BRIDGE + " :", e.getCause());
51 } 50 }
(...skipping 28 matching lines...) Expand all
80 // because of any technical limitation) we require that "queryMetricsSetting " and "callback" 79 // because of any technical limitation) we require that "queryMetricsSetting " and "callback"
81 // both get called on WebView's UI thread. 80 // both get called on WebView's UI thread.
82 public void queryMetricsSetting(ValueCallback<Boolean> callback) { 81 public void queryMetricsSetting(ValueCallback<Boolean> callback) {
83 ThreadUtils.assertOnUiThread(); 82 ThreadUtils.assertOnUiThread();
84 callback.onReceiveValue(false); 83 callback.onReceiveValue(false);
85 } 84 }
86 85
87 // Takes an uncompressed, serialized UMA proto and logs it via a platform-sp ecific mechanism. 86 // Takes an uncompressed, serialized UMA proto and logs it via a platform-sp ecific mechanism.
88 public void logMetrics(byte[] data) {} 87 public void logMetrics(byte[] data) {}
89 } 88 }
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