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Abandon the idea of an Event pool and make Event immutable (B1) 

Change-Id: I750a07c0c564a95ceac734afa873ca3da9626a7f
main
Jean Chalard 2013-01-09 21:08:58 +09:00
parent 8315e8168b
commit ae74b8cf67
3 changed files with 18 additions and 27 deletions
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32
java/src/com/android/inputmethod/event/Event.java
View File

@ -54,39 +54,33 @@ public class Event {
final private static int NOT_A_CODE_POINT = 0;
private int mType; // The type of event - one of the constants above
final private int mType; // The type of event - one of the constants above
// The code point associated with the event, if relevant. This is a unicode code point, and
// has nothing to do with other representations of the key. It is only relevant if this event
// is the right type: COMMITTABLE or DEAD or TOGGLE, but for a mode key like hankaku/zenkaku or
// ctrl, there is no code point associated so this should be NOT_A_CODE_POINT to avoid
// unintentional use of its value when it's not relevant.
private int mCodePoint;
final public int mCodePoint;
static Event obtainEvent() {
// TODO: create an event pool instead
return new Event();
}
public void setDeadEvent(final int codePoint) {
mType = EVENT_DEAD;
// This method is private - to create a new event, use one of the create* utility methods.
private Event(final int type, final int codePoint) {
mType = type;
mCodePoint = codePoint;
}
public void setCommittableEvent(final int codePoint) {
mType = EVENT_COMMITTABLE;
mCodePoint = codePoint;
public static Event createDeadEvent(final int codePoint) {
return new Event(EVENT_DEAD, codePoint);
}
public void setNotHandledEvent() {
mType = EVENT_NOT_HANDLED;
mCodePoint = NOT_A_CODE_POINT; // Just in case
public static Event createCommittableEvent(final int codePoint) {
return new Event(EVENT_COMMITTABLE, codePoint);
}
public static Event createNotHandledEvent() {
return new Event(EVENT_NOT_HANDLED, NOT_A_CODE_POINT);
}
public boolean isCommittable() {
return EVENT_COMMITTABLE == mType;
}
public int getCodePoint() {
return mCodePoint;
}
}

2
java/src/com/android/inputmethod/event/EventInterpreter.java
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@ -107,7 +107,7 @@ public class EventInterpreter {
private boolean onEvent(final Event event) {
if (event.isCommittable()) {
mLatinIme.onCodeInput(event.getCodePoint(),
mLatinIme.onCodeInput(event.mCodePoint,
Constants.EXTERNAL_KEYBOARD_COORDINATE, Constants.EXTERNAL_KEYBOARD_COORDINATE);
return true;
}

11
java/src/com/android/inputmethod/event/HardwareKeyboardEventDecoder.java
View File

@ -38,7 +38,6 @@ public class HardwareKeyboardEventDecoder implements HardwareEventDecoder {
@Override
public Event decodeHardwareKey(final KeyEvent keyEvent) {
final Event event = Event.obtainEvent();
// KeyEvent#getUnicodeChar() does not exactly returns a unicode char, but rather a value
// that includes both the unicode char in the lower 21 bits and flags in the upper bits,
// hence the name "codePointAndFlags". {@see KeyEvent#getUnicodeChar()} for more info.
@ -48,22 +47,20 @@ public class HardwareKeyboardEventDecoder implements HardwareEventDecoder {
// the key for 'A' or Space, but also Backspace or Ctrl or Caps Lock.
final int keyCode = keyEvent.getKeyCode();
if (KeyEvent.KEYCODE_DEL == keyCode) {
event.setCommittableEvent(Constants.CODE_DELETE);
return event;
return Event.createCommittableEvent(Constants.CODE_DELETE);
}
if (keyEvent.isPrintingKey() || KeyEvent.KEYCODE_SPACE == keyCode
|| KeyEvent.KEYCODE_ENTER == keyCode) {
if (0 != (codePointAndFlags & KeyCharacterMap.COMBINING_ACCENT)) {
// A dead key.
event.setDeadEvent(codePointAndFlags & KeyCharacterMap.COMBINING_ACCENT_MASK);
return Event.createDeadEvent(codePointAndFlags & KeyCharacterMap.COMBINING_ACCENT_MASK);
} else {
// A committable character. This should be committed right away, taking into
// account the current state.
event.setCommittableEvent(codePointAndFlags);
return Event.createCommittableEvent(codePointAndFlags);
}
} else {
event.setNotHandledEvent();
return Event.createNotHandledEvent();
}
return event;
}
}