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