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Side by Side Diff: content/public/android/java/src/org/chromium/content/browser/input/ChromiumBaseInputConnection.java

Issue 1278593004: Introduce ThreadedInputConnection behind a switch (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: handles render crash and navigation Created 4 years, 10 months ago
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1 // Copyright 2016 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 package org.chromium.content.browser.input;
6
7 import android.os.Handler;
8 import android.os.Looper;
9 import android.view.KeyEvent;
10 import android.view.View;
11 import android.view.inputmethod.EditorInfo;
12 import android.view.inputmethod.InputConnection;
13
14 import org.chromium.base.VisibleForTesting;
15
16 import java.util.concurrent.Callable;
17 import java.util.concurrent.FutureTask;
18 import java.util.concurrent.TimeUnit;
19
20 /**
21 * An interface to help switch between AdapterInputConnection and ChromiumInputC onnection.
22 */
23 public interface ChromiumBaseInputConnection extends InputConnection {
24
25 /**
26 * A class to post, run some runnable or callable on the given handler.
27 */
28 public static class ThreadManager {
29 private final Handler mHandler;
Ted C 2016/02/02 23:14:42 why not just pass a Handler. This class seems lik
Changwan Ryu 2016/02/11 16:21:07 You're right. Removed.
30
31 public ThreadManager(Handler handler) {
32 mHandler = handler;
33 }
34
35 public Handler getHandler() {
36 return mHandler;
37 }
38
39 public boolean runningOnThisThread() {
40 return mHandler.getLooper() == Looper.myLooper();
41 }
42
43 public void post(Runnable runnable) {
44 mHandler.post(runnable);
45 }
46
47 public <T> T runBlockingForTesting(Callable<T> c) throws Exception {
48 if (runningOnThisThread()) {
49 return c.call();
50 } else {
51 FutureTask<T> task = new FutureTask<T>(c);
52 mHandler.post(task);
53 return task.get(5, TimeUnit.SECONDS);
54 }
55 }
56 }
57
58 /**
59 * A factory class to create or reuse ChromiumBaseInputConnection.
60 */
61 public interface Factory {
62 ChromiumBaseInputConnection initializeAndGet(View view, ImeAdapter imeAd apter,
63 int inputType, int inputFlags, EditorInfo outAttrs);
64
65 @VisibleForTesting
66 ThreadManager getThreadManager();
67 }
68
69 /**
70 * Updates the internal representation of the text being edited and its sele ction and
71 * composition properties.
72 *
73 * @param text The String contents of the field being edited.
74 * @param selectionStart The character offset of the selection start, or the caret position if
75 * there is no selection.
76 * @param selectionEnd The character offset of the selection end, or the car et position if there
77 * is no selection.
78 * @param compositionStart The character offset of the composition start, or -1 if there is no
79 * composition.
80 * @param compositionEnd The character offset of the composition end, or -1 if there is no
81 * selection.
82 * @param isNonImeChange True when the update was caused by non-IME (e.g. Ja vascript).
83 */
84 void updateStateOnUiThread(String text, int selectionStart, int selectionEnd ,
85 int compositionStart, int compositionEnd, boolean singleLine, boolea n isNonImeChange);
86
87 /**
88 * Send key event on UI thread.
89 * @param event A key event.
90 */
91 boolean sendKeyEventOnUiThread(KeyEvent event);
92
93 /**
94 * Call this when restartInput() is called.
95 */
96 void onRestartInputOnUiThread();
97
98 /**
99 * @return The thread manager for this InputConnection.
100 */
101 @VisibleForTesting
102 ThreadManager getThreadManager();
103
104 /**
105 * Move cursor to the end of the current selection.
106 */
107 void moveCursorToSelectionEndOnUiThread();
108
109 /**
110 * Unblock thread function if needed, e.g. we found that we will
111 * never get state update.
112 */
113 void unblockOnUiThread();
114 }
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