import java.lang.annotation.Retention;
import java.nio.charset.StandardCharsets;
import java.security.InvalidParameterException;
+import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collections;
+import java.util.Date;
import java.util.HashMap;
import java.util.List;
+import java.util.Locale;
import java.util.WeakHashMap;
+import java.util.concurrent.atomic.AtomicInteger;
/**
* This class provides a system service that manages input methods.
* </p>
*/
private static class StartInputInfo {
+ private static final AtomicInteger sSequenceNumber = new AtomicInteger(0);
+
+ final int mSequenceNumber;
+ final long mTimestamp;
+ final long mWallTime;
@NonNull
final IBinder mImeToken;
+ @NonNull
+ final String mImeId;
+ // @InputMethodClient.StartInputReason
+ final int mStartInputReason;
+ final boolean mRestarting;
@Nullable
final IBinder mTargetWindow;
-
- StartInputInfo(@NonNull IBinder imeToken, @Nullable IBinder targetWindow) {
+ @NonNull
+ final EditorInfo mEditorInfo;
+ final int mTargetWindowSoftInputMode;
+ final int mClientBindSequenceNumber;
+
+ StartInputInfo(@NonNull IBinder imeToken, @NonNull String imeId,
+ /* @InputMethodClient.StartInputReason */ int startInputReason, boolean restarting,
+ @Nullable IBinder targetWindow, @NonNull EditorInfo editorInfo,
+ int targetWindowSoftInputMode, int clientBindSequenceNumber) {
+ mSequenceNumber = sSequenceNumber.getAndIncrement();
+ mTimestamp = SystemClock.uptimeMillis();
+ mWallTime = System.currentTimeMillis();
mImeToken = imeToken;
+ mImeId = imeId;
+ mStartInputReason = startInputReason;
+ mRestarting = restarting;
mTargetWindow = targetWindow;
+ mEditorInfo = editorInfo;
+ mTargetWindowSoftInputMode = targetWindowSoftInputMode;
+ mClientBindSequenceNumber = clientBindSequenceNumber;
}
}
@GuardedBy("mMethodMap")
private final WeakHashMap<IBinder, StartInputInfo> mStartInputMap = new WeakHashMap<>();
+ /**
+ * A ring buffer to store the history of {@link StartInputInfo}.
+ */
+ private static final class StartInputHistory {
+ /**
+ * Entry size for non low-RAM devices.
+ *
+ * <p>TODO: Consider to follow what other system services have been doing to manage
+ * constants (e.g. {@link android.provider.Settings.Global#ACTIVITY_MANAGER_CONSTANTS}).</p>
+ */
+ private final static int ENTRY_SIZE_FOR_HIGH_RAM_DEVICE = 16;
+
+ /**
+ * Entry size for non low-RAM devices.
+ *
+ * <p>TODO: Consider to follow what other system services have been doing to manage
+ * constants (e.g. {@link android.provider.Settings.Global#ACTIVITY_MANAGER_CONSTANTS}).</p>
+ */
+ private final static int ENTRY_SIZE_FOR_LOW_RAM_DEVICE = 5;
+
+ private static int getEntrySize() {
+ if (ActivityManager.isLowRamDeviceStatic()) {
+ return ENTRY_SIZE_FOR_LOW_RAM_DEVICE;
+ } else {
+ return ENTRY_SIZE_FOR_HIGH_RAM_DEVICE;
+ }
+ }
+
+ /**
+ * Backing store for the ring bugger.
+ */
+ private final Entry[] mEntries = new Entry[getEntrySize()];
+
+ /**
+ * An index of {@link #mEntries}, to which next {@link #addEntry(StartInputInfo)} should
+ * write.
+ */
+ private int mNextIndex = 0;
+
+ /**
+ * Recyclable entry to store the information in {@link StartInputInfo}.
+ */
+ private static final class Entry {
+ int mSequenceNumber;
+ long mTimestamp;
+ long mWallTime;
+ @NonNull
+ String mImeTokenString;
+ @NonNull
+ String mImeId;
+ /* @InputMethodClient.StartInputReason */
+ int mStartInputReason;
+ boolean mRestarting;
+ @NonNull
+ String mTargetWindowString;
+ @NonNull
+ EditorInfo mEditorInfo;
+ int mTargetWindowSoftInputMode;
+ int mClientBindSequenceNumber;
+
+ Entry(@NonNull StartInputInfo original) {
+ set(original);
+ }
+
+ void set(@NonNull StartInputInfo original) {
+ mSequenceNumber = original.mSequenceNumber;
+ mTimestamp = original.mTimestamp;
+ mWallTime = original.mWallTime;
+ // Intentionally convert to String so as not to keep a strong reference to a Binder
+ // object.
+ mImeTokenString = String.valueOf(original.mImeToken);
+ mImeId = original.mImeId;
+ mStartInputReason = original.mStartInputReason;
+ mRestarting = original.mRestarting;
+ // Intentionally convert to String so as not to keep a strong reference to a Binder
+ // object.
+ mTargetWindowString = String.valueOf(original.mTargetWindow);
+ mEditorInfo = original.mEditorInfo;
+ mTargetWindowSoftInputMode = original.mTargetWindowSoftInputMode;
+ mClientBindSequenceNumber = original.mClientBindSequenceNumber;
+ }
+ }
+
+ /**
+ * Add a new entry and discard the oldest entry as needed.
+ * @param info {@lin StartInputInfo} to be added.
+ */
+ void addEntry(@NonNull StartInputInfo info) {
+ final int index = mNextIndex;
+ if (mEntries[index] == null) {
+ mEntries[index] = new Entry(info);
+ } else {
+ mEntries[index].set(info);
+ }
+ mNextIndex = (mNextIndex + 1) % mEntries.length;
+ }
+
+ void dump(@NonNull PrintWriter pw, @NonNull String prefix) {
+ final SimpleDateFormat dataFormat =
+ new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS", Locale.US);
+
+ for (int i = 0; i < mEntries.length; ++i) {
+ final Entry entry = mEntries[(i + mNextIndex) % mEntries.length];
+ if (entry == null) {
+ continue;
+ }
+ pw.print(prefix);
+ pw.println("StartInput #" + entry.mSequenceNumber + ":");
+
+ pw.print(prefix);
+ pw.println(" time=" + dataFormat.format(new Date(entry.mWallTime))
+ + " (timestamp=" + entry.mTimestamp + ")"
+ + " reason="
+ + InputMethodClient.getStartInputReason(entry.mStartInputReason)
+ + " restarting=" + entry.mRestarting);
+
+ pw.print(prefix);
+ pw.println(" imeToken=" + entry.mImeTokenString + " [" + entry.mImeId + "]");
+
+ pw.print(prefix);
+ pw.println(" targetWin=" + entry.mTargetWindowString
+ + " [" + entry.mEditorInfo.packageName + "]"
+ + " clientBindSeq=" + entry.mClientBindSequenceNumber);
+
+ pw.print(prefix);
+ pw.println(" softInputMode=" + InputMethodClient.softInputModeToString(
+ entry.mTargetWindowSoftInputMode));
+
+ pw.print(prefix);
+ pw.println(" inputType=0x" + Integer.toHexString(entry.mEditorInfo.inputType)
+ + " imeOptions=0x" + Integer.toHexString(entry.mEditorInfo.imeOptions)
+ + " fieldId=0x" + Integer.toHexString(entry.mEditorInfo.fieldId)
+ + " fieldName=" + entry.mEditorInfo.fieldName
+ + " actionId=" + entry.mEditorInfo.actionId
+ + " actionLabel=" + entry.mEditorInfo.actionLabel);
+ }
+ }
+ }
+
+ @GuardedBy("mMethodMap")
+ @NonNull
+ private final StartInputHistory mStartInputHistory = new StartInputHistory();
+
class SettingsObserver extends ContentObserver {
int mUserId;
boolean mRegistered = false;
}
final Binder startInputToken = new Binder();
- final StartInputInfo info = new StartInputInfo(mCurToken, mCurFocusedWindow);
+ final StartInputInfo info = new StartInputInfo(mCurToken, mCurId, startInputReason,
+ !initial, mCurFocusedWindow, mCurAttribute, mCurFocusedWindowSoftInputMode,
+ mCurSeq);
mStartInputMap.put(startInputToken, info);
+ mStartInputHistory.addEntry(info);
final SessionState session = mCurClient.curSession;
executeOrSendMessage(session.method, mCaller.obtainMessageIIOOOO(
mSwitchingController.dump(p);
p.println(" mSettings:");
mSettings.dumpLocked(p, " ");
+
+ p.println(" mStartInputHistory:");
+ mStartInputHistory.dump(pw, " ");
}
p.println(" ");
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