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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.base; | 5 package org.chromium.base; |
6 | 6 |
7 import android.content.Context; | 7 import android.content.Context; |
8 import android.content.SharedPreferences; | 8 import android.content.SharedPreferences; |
9 import android.preference.PreferenceManager; | 9 import android.preference.PreferenceManager; |
10 | 10 |
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47 * | 47 * |
48 * This should be called exactly once early on during startup, before native
is loaded and | 48 * This should be called exactly once early on during startup, before native
is loaded and |
49 * before any other clients make use of the application context through this
class. | 49 * before any other clients make use of the application context through this
class. |
50 * | 50 * |
51 * @param appContext The application context. | 51 * @param appContext The application context. |
52 */ | 52 */ |
53 public static void initApplicationContext(Context appContext) { | 53 public static void initApplicationContext(Context appContext) { |
54 // Conceding that occasionally in tests, native is loaded before the bro
wser process is | 54 // Conceding that occasionally in tests, native is loaded before the bro
wser process is |
55 // started, in which case the browser process re-sets the application co
ntext. | 55 // started, in which case the browser process re-sets the application co
ntext. |
56 if (sApplicationContext != null && sApplicationContext != appContext) { | 56 if (sApplicationContext != null && sApplicationContext != appContext) { |
57 // For webview, sometimes the client app overrides getApplicationCon
text in a poor way | 57 throw new RuntimeException("Attempting to set multiple global applic
ation contexts."); |
58 // and fails to make it idempotent. We cannot crash in this scenario
, so we ignore new | |
59 // assignments and assume that the first initialized context is the
right application | |
60 // object. See http://crbug.com/637389. | |
61 // TODO(wnwen): Add runtime exception back once the underlying issue
in LibraryLoader is | |
62 // fixed. | |
63 Log.d(TAG, "Multiple contexts detected, ignoring new application con
text."); | |
64 return; | |
65 } | 58 } |
66 initJavaSideApplicationContext(appContext); | 59 initJavaSideApplicationContext(appContext); |
67 } | 60 } |
68 | 61 |
69 /** | 62 /** |
70 * Initialize the native Android application context to be the same as the j
ava counter-part. | 63 * Initialize the native Android application context to be the same as the j
ava counter-part. |
71 */ | 64 */ |
72 public static void initApplicationContextForNative() { | 65 public static void initApplicationContextForNative() { |
73 if (sApplicationContext == null) { | 66 if (sApplicationContext == null) { |
74 throw new RuntimeException("Cannot have native global application co
ntext be null."); | 67 throw new RuntimeException("Cannot have native global application co
ntext be null."); |
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111 | 104 |
112 private static void initJavaSideApplicationContext(Context appContext) { | 105 private static void initJavaSideApplicationContext(Context appContext) { |
113 if (appContext == null) { | 106 if (appContext == null) { |
114 throw new RuntimeException("Global application context cannot be set
to null."); | 107 throw new RuntimeException("Global application context cannot be set
to null."); |
115 } | 108 } |
116 sApplicationContext = appContext; | 109 sApplicationContext = appContext; |
117 } | 110 } |
118 | 111 |
119 private static native void nativeInitNativeSideApplicationContext(Context ap
pContext); | 112 private static native void nativeInitNativeSideApplicationContext(Context ap
pContext); |
120 } | 113 } |
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