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Save the history of InputMethodSubtype for reverting the subtype when IME was changed.

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- Re-revert the change https://android-git.corp.google.com/g/#q,78962,n,z
*** If you want to see the diff between reverted change and new change, please see the diff between patch set 1 and the latest patch set

- TODO: Add a public function "switchToLastInputMethod"

Change-Id: Ic85d54b3b68e47a22360acaeb81202a366a34586
This commit is contained in:
satok
2010-11-11 14:58:11 +09:00
parent a6689ddbba
commit 723a27ef3d
2 changed files with 236 additions and 47 deletions
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275
services/java/com/android/server/InputMethodManagerService.java
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@ -116,6 +116,7 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
static final long TIME_TO_RECONNECT = 10*1000;
private static final int NOT_A_SUBTYPE_ID = -1;
private static final String NOT_A_SUBTYPE_ID_STR = String.valueOf(NOT_A_SUBTYPE_ID);
// If IME doesn't support the system locale, the default subtype will be the first defined one.
private static final int DEFAULT_SUBTYPE_ID = 0;
@ -366,9 +367,7 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
if (!doit) {
return true;
}
Settings.Secure.putString(mContext.getContentResolver(),
Settings.Secure.DEFAULT_INPUT_METHOD, "");
resetSelectedInputMethodSubtype();
resetSelectedInputMethodAndSubtypeLocked("");
chooseNewDefaultIMELocked();
return true;
}
@ -425,9 +424,7 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
changed = true;
curIm = null;
Slog.i(TAG, "Unsetting current input method");
Settings.Secure.putString(mContext.getContentResolver(),
Settings.Secure.DEFAULT_INPUT_METHOD, "");
resetSelectedInputMethodSubtype();
resetSelectedInputMethodAndSubtypeLocked("");
}
}
}
@ -510,9 +507,7 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
Slog.i(TAG, "No default found, using " + defIm.getId());
}
if (defIm != null) {
Settings.Secure.putString(mContext.getContentResolver(),
Settings.Secure.DEFAULT_INPUT_METHOD, defIm.getId());
putSelectedInputMethodSubtype(defIm, NOT_A_SUBTYPE_ID);
setSelectedInputMethodAndSubtypeLocked(defIm, NOT_A_SUBTYPE_ID, false);
}
}
@ -994,7 +989,7 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
synchronized (mMethodMap) {
if (mCurMethod != null) {
try {
putSelectedInputMethodSubtype(info, subtypeId);
setSelectedInputMethodAndSubtypeLocked(info, subtypeId, true);
if (mInputShown) {
// If mInputShown is false, there is no IME button on the
// system bar.
@ -1014,13 +1009,13 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
final long ident = Binder.clearCallingIdentity();
try {
mCurMethodId = id;
// Set a subtype to this input method.
// subtypeId the name of a subtype which will be set.
putSelectedInputMethodSubtype(info, subtypeId);
Settings.Secure.putString(mContext.getContentResolver(),
Settings.Secure.DEFAULT_INPUT_METHOD, id);
setSelectedInputMethodAndSubtypeLocked(info, subtypeId, false);
// mCurMethodId should be updated after setSelectedInputMethodAndSubtypeLocked()
// because mCurMethodId is stored as a history in
// setSelectedInputMethodAndSubtypeLocked().
mCurMethodId = id;
if (ActivityManagerNative.isSystemReady()) {
Intent intent = new Intent(Intent.ACTION_INPUT_METHOD_CHANGED);
@ -1487,9 +1482,7 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
}
}
InputMethodInfo imi = enabled.get(i);
Settings.Secure.putString(mContext.getContentResolver(),
Settings.Secure.DEFAULT_INPUT_METHOD, imi.getId());
putSelectedInputMethodSubtype(imi, NOT_A_SUBTYPE_ID);
resetSelectedInputMethodAndSubtypeLocked(imi.getId());
return true;
}
@ -1793,11 +1786,8 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
String selId = Settings.Secure.getString(mContext.getContentResolver(),
Settings.Secure.DEFAULT_INPUT_METHOD);
if (id.equals(selId)) {
Settings.Secure.putString(
mContext.getContentResolver(), Settings.Secure.DEFAULT_INPUT_METHOD,
enabledInputMethodsList.size() > 0
? enabledInputMethodsList.get(0).first : "");
resetSelectedInputMethodSubtype();
resetSelectedInputMethodAndSubtypeLocked(enabledInputMethodsList.size() > 0
? enabledInputMethodsList.get(0).first : "");
}
// Previous state was enabled.
return true;
@ -1809,22 +1799,56 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
}
}
private void resetSelectedInputMethodSubtype() {
Settings.Secure.putInt(mContext.getContentResolver(),
Settings.Secure.SELECTED_INPUT_METHOD_SUBTYPE, NOT_A_SUBTYPE_ID);
private void saveCurrentInputMethodAndSubtypeToHistory() {
String subtypeId = NOT_A_SUBTYPE_ID_STR;
if (mCurrentSubtype != null) {
subtypeId = String.valueOf(mCurrentSubtype.hashCode());
}
mSettings.addSubtypeToHistory(mCurMethodId, subtypeId);
}
private void putSelectedInputMethodSubtype(InputMethodInfo imi, int subtypeId) {
final ArrayList<InputMethodSubtype> subtypes = imi.getSubtypes();
if (subtypeId >= 0 && subtypeId < subtypes.size()) {
Settings.Secure.putInt(mContext.getContentResolver(),
Settings.Secure.SELECTED_INPUT_METHOD_SUBTYPE,
subtypes.get(subtypeId).hashCode());
mCurrentSubtype = subtypes.get(subtypeId);
} else {
resetSelectedInputMethodSubtype();
private void setSelectedInputMethodAndSubtypeLocked(InputMethodInfo imi, int subtypeId,
boolean setSubtypeOnly) {
// Update the history of InputMethod and Subtype
saveCurrentInputMethodAndSubtypeToHistory();
// Set Subtype here
if (imi == null || subtypeId < 0) {
mSettings.putSelectedSubtype(NOT_A_SUBTYPE_ID);
mCurrentSubtype = null;
} else {
final ArrayList<InputMethodSubtype> subtypes = imi.getSubtypes();
if (subtypeId < subtypes.size()) {
mSettings.putSelectedSubtype(subtypes.get(subtypeId).hashCode());
mCurrentSubtype = subtypes.get(subtypeId);
} else {
mSettings.putSelectedSubtype(NOT_A_SUBTYPE_ID);
mCurrentSubtype = null;
}
}
if (!setSubtypeOnly) {
// Set InputMethod here
mSettings.putSelectedInputMethod(imi != null ? imi.getId() : "");
}
}
private void resetSelectedInputMethodAndSubtypeLocked(String newDefaultIme) {
InputMethodInfo imi = mMethodMap.get(newDefaultIme);
int lastSubtypeId = NOT_A_SUBTYPE_ID;
// newDefaultIme is empty when there is no candidate for the selected IME.
if (imi != null && !TextUtils.isEmpty(newDefaultIme)) {
String subtypeHashCode = mSettings.getLastSubtypeForInputMethodLocked(newDefaultIme);
if (subtypeHashCode != null) {
try {
lastSubtypeId = getSubtypeIdFromHashCode(
imi, Integer.valueOf(subtypeHashCode));
} catch (NumberFormatException e) {
Slog.w(TAG, "HashCode for subtype looks broken: " + subtypeHashCode, e);
}
}
}
setSelectedInputMethodAndSubtypeLocked(imi, lastSubtypeId, false);
}
private int getSelectedInputMethodSubtypeId(String id) {
@ -1832,7 +1856,6 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
if (imi == null) {
return NOT_A_SUBTYPE_ID;
}
ArrayList<InputMethodSubtype> subtypes = imi.getSubtypes();
int subtypeId;
try {
subtypeId = Settings.Secure.getInt(mContext.getContentResolver(),
@ -1840,9 +1863,14 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
} catch (SettingNotFoundException e) {
return NOT_A_SUBTYPE_ID;
}
return getSubtypeIdFromHashCode(imi, subtypeId);
}
private int getSubtypeIdFromHashCode(InputMethodInfo imi, int subtypeHashCode) {
ArrayList<InputMethodSubtype> subtypes = imi.getSubtypes();
for (int i = 0; i < subtypes.size(); ++i) {
InputMethodSubtype ims = subtypes.get(i);
if (subtypeId == ims.hashCode()) {
if (subtypeHashCode == ims.hashCode()) {
return i;
}
}
@ -1922,10 +1950,10 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
// example: ("ime0;subtype0;subtype1;subtype2:ime1:ime2;subtype0")
private static final char INPUT_METHOD_SEPARATER = ':';
private static final char INPUT_METHOD_SUBTYPE_SEPARATER = ';';
private final TextUtils.SimpleStringSplitter mStringColonSplitter =
private final TextUtils.SimpleStringSplitter mInputMethodSplitter =
new TextUtils.SimpleStringSplitter(INPUT_METHOD_SEPARATER);
private final TextUtils.SimpleStringSplitter mStringSemiColonSplitter =
private final TextUtils.SimpleStringSplitter mSubtypeSplitter =
new TextUtils.SimpleStringSplitter(INPUT_METHOD_SUBTYPE_SEPARATER);
private final ContentResolver mResolver;
@ -1988,16 +2016,16 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
if (TextUtils.isEmpty(enabledInputMethodsStr)) {
return imsList;
}
mStringColonSplitter.setString(enabledInputMethodsStr);
while (mStringColonSplitter.hasNext()) {
String nextImsStr = mStringColonSplitter.next();
mStringSemiColonSplitter.setString(nextImsStr);
if (mStringSemiColonSplitter.hasNext()) {
mInputMethodSplitter.setString(enabledInputMethodsStr);
while (mInputMethodSplitter.hasNext()) {
String nextImsStr = mInputMethodSplitter.next();
mSubtypeSplitter.setString(nextImsStr);
if (mSubtypeSplitter.hasNext()) {
ArrayList<String> subtypeHashes = new ArrayList<String>();
// The first element is ime id.
String imeId = mStringSemiColonSplitter.next();
while (mStringSemiColonSplitter.hasNext()) {
subtypeHashes.add(mStringSemiColonSplitter.next());
String imeId = mSubtypeSplitter.next();
while (mSubtypeSplitter.hasNext()) {
subtypeHashes.add(mSubtypeSplitter.next());
}
imsList.add(new Pair<String, ArrayList<String>>(imeId, subtypeHashes));
}
@ -2083,8 +2111,161 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
private String getEnabledInputMethodsStr() {
mEnabledInputMethodsStrCache = Settings.Secure.getString(
mResolver, Settings.Secure.ENABLED_INPUT_METHODS);
if (DEBUG) {
Slog.d(TAG, "getEnabledInputMethodsStr: " + mEnabledInputMethodsStrCache);
}
return mEnabledInputMethodsStrCache;
}
private void saveSubtypeHistory(
List<Pair<String, String>> savedImes, String newImeId, String newSubtypeId) {
StringBuilder builder = new StringBuilder();
boolean isImeAdded = false;
if (!TextUtils.isEmpty(newImeId) && !TextUtils.isEmpty(newSubtypeId)) {
builder.append(newImeId).append(INPUT_METHOD_SUBTYPE_SEPARATER).append(
newSubtypeId);
isImeAdded = true;
}
for (Pair<String, String> ime: savedImes) {
String imeId = ime.first;
String subtypeId = ime.second;
if (TextUtils.isEmpty(subtypeId)) {
subtypeId = NOT_A_SUBTYPE_ID_STR;
}
if (isImeAdded) {
builder.append(INPUT_METHOD_SEPARATER);
} else {
isImeAdded = true;
}
builder.append(imeId).append(INPUT_METHOD_SUBTYPE_SEPARATER).append(
subtypeId);
}
// Remove the last INPUT_METHOD_SEPARATER
putSubtypeHistoryStr(builder.toString());
}
public void addSubtypeToHistory(String imeId, String subtypeId) {
List<Pair<String, String>> subtypeHistory = loadInputMethodAndSubtypeHistoryLocked();
for (Pair<String, String> ime: subtypeHistory) {
if (ime.first.equals(imeId)) {
if (DEBUG) {
Slog.v(TAG, "Subtype found in the history: " + imeId
+ ime.second);
}
// We should break here
subtypeHistory.remove(ime);
break;
}
}
saveSubtypeHistory(subtypeHistory, imeId, subtypeId);
}
private void putSubtypeHistoryStr(String str) {
if (DEBUG) {
Slog.d(TAG, "putSubtypeHistoryStr: " + str);
}
Settings.Secure.putString(
mResolver, Settings.Secure.INPUT_METHODS_SUBTYPE_HISTORY, str);
}
public Pair<String, String> getLastInputMethodAndSubtypeLocked() {
// Gets the first one from the history
return getLastSubtypeForInputMethodLockedInternal(null);
}
public String getLastSubtypeForInputMethodLocked(String imeId) {
Pair<String, String> ime = getLastSubtypeForInputMethodLockedInternal(imeId);
if (ime != null) {
return ime.second;
} else {
return null;
}
}
private Pair<String, String> getLastSubtypeForInputMethodLockedInternal(String imeId) {
List<Pair<String, ArrayList<String>>> enabledImes =
getEnabledInputMethodsAndSubtypeListLocked();
List<Pair<String, String>> subtypeHistory = loadInputMethodAndSubtypeHistoryLocked();
for (Pair<String, String> imeAndSubtype: subtypeHistory) {
final String imeInTheHistory = imeAndSubtype.first;
// If imeId is empty, returns the first IME and subtype in the history
if (TextUtils.isEmpty(imeId) || imeInTheHistory.equals(imeId)) {
final String subtypeInTheHistory = imeAndSubtype.second;
final String subtypeHashCode = getEnabledSubtypeForInputMethodAndSubtypeLocked(
enabledImes, imeInTheHistory, subtypeInTheHistory);
if (!TextUtils.isEmpty(subtypeHashCode)) {
if (DEBUG) {
Slog.d(TAG, "Enabled subtype found in the history:" + subtypeHashCode);
}
return new Pair<String, String>(imeInTheHistory, subtypeHashCode);
}
}
}
if (DEBUG) {
Slog.d(TAG, "No enabled IME found in the history");
}
return null;
}
private String getEnabledSubtypeForInputMethodAndSubtypeLocked(List<Pair<String,
ArrayList<String>>> enabledImes, String imeId, String subtypeHashCode) {
for (Pair<String, ArrayList<String>> enabledIme: enabledImes) {
if (enabledIme.first.equals(imeId)) {
for (String s: enabledIme.second) {
if (s.equals(subtypeHashCode)) {
// If both imeId and subtypeId are enabled, return subtypeId.
return s;
}
}
// If imeId was enabled but subtypeId was disabled.
return NOT_A_SUBTYPE_ID_STR;
}
}
// If both imeId and subtypeId are disabled, return null
return null;
}
private List<Pair<String, String>> loadInputMethodAndSubtypeHistoryLocked() {
ArrayList<Pair<String, String>> imsList = new ArrayList<Pair<String, String>>();
final String subtypeHistoryStr = getSubtypeHistoryStr();
if (TextUtils.isEmpty(subtypeHistoryStr)) {
return imsList;
}
mInputMethodSplitter.setString(subtypeHistoryStr);
while (mInputMethodSplitter.hasNext()) {
String nextImsStr = mInputMethodSplitter.next();
mSubtypeSplitter.setString(nextImsStr);
if (mSubtypeSplitter.hasNext()) {
String subtypeId = NOT_A_SUBTYPE_ID_STR;
// The first element is ime id.
String imeId = mSubtypeSplitter.next();
while (mSubtypeSplitter.hasNext()) {
subtypeId = mSubtypeSplitter.next();
break;
}
imsList.add(new Pair<String, String>(imeId, subtypeId));
}
}
return imsList;
}
private String getSubtypeHistoryStr() {
if (DEBUG) {
Slog.d(TAG, "getSubtypeHistoryStr: " + Settings.Secure.getString(
mResolver, Settings.Secure.INPUT_METHODS_SUBTYPE_HISTORY));
}
return Settings.Secure.getString(
mResolver, Settings.Secure.INPUT_METHODS_SUBTYPE_HISTORY);
}
public void putSelectedInputMethod(String imeId) {
Settings.Secure.putString(mResolver, Settings.Secure.DEFAULT_INPUT_METHOD, imeId);
}
public void putSelectedSubtype(int subtypeId) {
Settings.Secure.putInt(
mResolver, Settings.Secure.SELECTED_INPUT_METHOD_SUBTYPE, subtypeId);
}
}
// ----------------------------------------------------------------------