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Move sliding language switch code to PointerTracker

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This change is hack and temporal.

Big: 4328445
Change-Id: I0b8851e9f05390db20ddaa10f35cff1cc9f016da
This commit is contained in:
Tadashi G. Takaoka 2011-04-22 11:09:48 +09:00
parent c121b5d03e
commit c5c57b506e
6 changed files with 95 additions and 122 deletions
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11
java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
View file

@ -146,11 +146,6 @@ public class KeyboardSwitcher implements SharedPreferences.OnSharedPreferenceCha
// Update the settings key state because number of enabled IMEs could have been changed
mSettingsKeyEnabledInSettings = getSettingsKeyMode(mPrefs, mInputMethodService);
final KeyboardId id = getKeyboardId(attribute, isSymbols);
final Keyboard oldKeyboard = mInputView.getKeyboard();
if (oldKeyboard != null && oldKeyboard.mId.equals(id))
return;
makeSymbolsKeyboardIds(id.mMode, attribute);
mCurrentId = id;
mInputView.setKeyPreviewEnabled(mInputMethodService.getPopupOn());
@ -296,12 +291,6 @@ public class KeyboardSwitcher implements SharedPreferences.OnSharedPreferenceCha
return null;
}
public void keyReleased() {
LatinKeyboard latinKeyboard = getLatinKeyboard();
if (latinKeyboard != null)
latinKeyboard.keyReleased();
}
public boolean isShiftedOrShiftLocked() {
LatinKeyboard latinKeyboard = getLatinKeyboard();
if (latinKeyboard != null)

99
java/src/com/android/inputmethod/keyboard/LatinKeyboard.java
View file

@ -56,17 +56,15 @@ public class LatinKeyboard extends Keyboard {
private final Key mSpaceKey;
private final Drawable mSpaceIcon;
private final Drawable mSpacePreviewIcon;
private final int[] mSpaceKeyIndexArray;
private final int mSpaceKeyIndex;
private final Drawable mSpaceAutoCorrectionIndicator;
private final Drawable mButtonArrowLeftIcon;
private final Drawable mButtonArrowRightIcon;
private final int mSpacebarTextColor;
private final int mSpacebarTextShadowColor;
private final int mSpacebarVerticalCorrection;
private float mSpacebarTextFadeFactor = 0.0f;
private int mSpaceDragStartX;
private int mSpaceDragLastDiff;
private boolean mCurrentlyInSpace;
private final int mSpacebarLanguageSwitchThreshold;
private int mSpacebarLanguageSwitchDiff;
private SlidingLocaleDrawable mSlidingLocaleIcon;
private final HashMap<Integer, SoftReference<BitmapDrawable>> mSpaceDrawableCache =
new HashMap<Integer, SoftReference<BitmapDrawable>>();
@ -115,7 +113,7 @@ public class LatinKeyboard extends Keyboard {
mSpaceKey = (spaceKeyIndex >= 0) ? keys.get(spaceKeyIndex) : null;
mSpaceIcon = (mSpaceKey != null) ? mSpaceKey.getIcon() : null;
mSpacePreviewIcon = (mSpaceKey != null) ? mSpaceKey.getPreviewIcon() : null;
mSpaceKeyIndexArray = new int[] { spaceKeyIndex };
mSpaceKeyIndex = spaceKeyIndex;
mShortcutKey = (shortcutKeyIndex >= 0) ? keys.get(shortcutKeyIndex) : null;
mEnabledShortcutIcon = (mShortcutKey != null) ? mShortcutKey.getIcon() : null;
@ -133,8 +131,8 @@ public class LatinKeyboard extends Keyboard {
mSpaceAutoCorrectionIndicator = res.getDrawable(R.drawable.sym_keyboard_space_led);
mButtonArrowLeftIcon = res.getDrawable(R.drawable.sym_keyboard_language_arrows_left);
mButtonArrowRightIcon = res.getDrawable(R.drawable.sym_keyboard_language_arrows_right);
mSpacebarVerticalCorrection = res.getDimensionPixelOffset(
R.dimen.spacebar_vertical_correction);
// The threshold is "key width" x 1.5
mSpacebarLanguageSwitchThreshold = (getMostCommonKeyWidth() * 3) / 2;
}
public void setSpacebarTextFadeFactor(float fadeFactor, LatinKeyboardView view) {
@ -325,7 +323,10 @@ public class LatinKeyboard extends Keyboard {
return buffer;
}
private void updateLocaleDrag(int diff) {
public void updateSpacebarPreviewIcon(int diff) {
if (mSpacebarLanguageSwitchDiff == diff)
return;
mSpacebarLanguageSwitchDiff = diff;
if (mSlidingLocaleIcon == null) {
final int width = Math.max(mSpaceKey.mWidth,
(int)(getMinWidth() * SPACEBAR_POPUP_MIN_RATIO));
@ -333,7 +334,6 @@ public class LatinKeyboard extends Keyboard {
mSlidingLocaleIcon =
new SlidingLocaleDrawable(mContext, mSpacePreviewIcon, width, height);
mSlidingLocaleIcon.setBounds(0, 0, width, height);
mSpaceKey.setPreviewIcon(mSlidingLocaleIcon);
}
mSlidingLocaleIcon.setDiff(diff);
if (Math.abs(diff) == Integer.MAX_VALUE) {
@ -344,85 +344,44 @@ public class LatinKeyboard extends Keyboard {
mSpaceKey.getPreviewIcon().invalidateSelf();
}
// This method is called when "popup on keypress" is off.
public boolean shouldTriggerSpacebarSlidingLanguageSwitch(int diff) {
return Math.abs(diff) > mSpacebarLanguageSwitchThreshold;
}
/**
* Return true if spacebar needs showing preview even when "popup on keypress" is off.
* @param keyIndex index of the pressing key
* @return true if spacebar needs showing preview
*/
@Override
public boolean needSpacebarPreview(int keyIndex) {
// This method is called when "popup on keypress" is off.
if (!mSubtypeSwitcher.useSpacebarLanguageSwitcher())
return false;
// Dismiss key preview.
if (keyIndex == KeyDetector.NOT_A_KEY)
return true;
// Key is not a spacebar.
if (keyIndex != mSpaceKeyIndexArray[0])
if (keyIndex != mSpaceKeyIndex)
return false;
// The language switcher will be displayed only when the dragging distance is greater
// than average key width of this keyboard.
return Math.abs(mSpaceDragLastDiff) > getMostCommonKeyWidth();
// than the threshold.
return shouldTriggerSpacebarSlidingLanguageSwitch(mSpacebarLanguageSwitchDiff);
}
public int getLanguageChangeDirection() {
if (mSpaceKey == null || SubtypeSwitcher.getInstance().getEnabledKeyboardLocaleCount() <= 1
|| Math.abs(mSpaceDragLastDiff) < getMostCommonKeyWidth() * SPACEBAR_DRAG_WIDTH) {
if (mSpaceKey == null || mSubtypeSwitcher.getEnabledKeyboardLocaleCount() <= 1 || Math.abs(
mSpacebarLanguageSwitchDiff) < getMostCommonKeyWidth() * SPACEBAR_DRAG_WIDTH) {
return 0; // No change
}
return mSpaceDragLastDiff > 0 ? 1 : -1;
}
public void keyReleased() {
mCurrentlyInSpace = false;
mSpaceDragLastDiff = 0;
if (mSpaceKey != null) {
updateLocaleDrag(Integer.MAX_VALUE);
}
}
/**
* Does the magic of locking the touch gesture into the spacebar when
* switching input languages.
*/
@Override
public boolean isInside(Key key, int pointX, int pointY) {
int x = pointX;
int y = pointY;
final int code = key.mCode;
if (code == CODE_SPACE) {
y += mSpacebarVerticalCorrection;
if (SubtypeSwitcher.getInstance().useSpacebarLanguageSwitcher()
&& SubtypeSwitcher.getInstance().getEnabledKeyboardLocaleCount() > 1) {
if (mCurrentlyInSpace) {
int diff = x - mSpaceDragStartX;
if (Math.abs(diff - mSpaceDragLastDiff) > 0) {
updateLocaleDrag(diff);
}
mSpaceDragLastDiff = diff;
return true;
} else {
boolean isOnSpace = key.isOnKey(x, y);
if (isOnSpace) {
mCurrentlyInSpace = true;
mSpaceDragStartX = x;
updateLocaleDrag(0);
}
return isOnSpace;
}
}
}
// Lock into the spacebar
if (mCurrentlyInSpace) return false;
return key.isOnKey(x, y);
return mSpacebarLanguageSwitchDiff > 0 ? 1 : -1;
}
@Override
public int[] getNearestKeys(int x, int y) {
if (mCurrentlyInSpace) {
return mSpaceKeyIndexArray;
} else {
// Avoid dead pixels at edges of the keyboard
return super.getNearestKeys(Math.max(0, Math.min(x, getMinWidth() - 1)),
Math.max(0, Math.min(y, getHeight() - 1)));
}
// Avoid dead pixels at edges of the keyboard
return super.getNearestKeys(Math.max(0, Math.min(x, getMinWidth() - 1)),
Math.max(0, Math.min(y, getHeight() - 1)));
}
private static int getTextSizeFromTheme(Theme theme, int style, int defValue) {

26
java/src/com/android/inputmethod/keyboard/LatinKeyboardView.java
View file

@ -68,11 +68,6 @@ public class LatinKeyboardView extends KeyboardView {
@Override
public void setKeyboard(Keyboard newKeyboard) {
final LatinKeyboard oldKeyboard = getLatinKeyboard();
if (oldKeyboard != null) {
// Reset old keyboard state before switching to new keyboard.
oldKeyboard.keyReleased();
}
super.setKeyboard(newKeyboard);
// One-seventh of the keyboard width seems like a reasonable threshold
mJumpThresholdSquare = newKeyboard.getMinWidth() / 7;
@ -216,8 +211,7 @@ public class LatinKeyboardView extends KeyboardView {
@Override
public boolean onTouchEvent(MotionEvent me) {
LatinKeyboard keyboard = getLatinKeyboard();
if (keyboard == null) return true;
if (getLatinKeyboard() == null) return true;
// If there was a sudden jump, return without processing the actual motion event.
if (handleSuddenJump(me)) {
@ -226,24 +220,6 @@ public class LatinKeyboardView extends KeyboardView {
return true;
}
// Reset any bounding box controls in the keyboard
if (me.getAction() == MotionEvent.ACTION_DOWN) {
keyboard.keyReleased();
}
if (me.getAction() == MotionEvent.ACTION_UP) {
int languageDirection = keyboard.getLanguageChangeDirection();
if (languageDirection != 0) {
getOnKeyboardActionListener().onCodeInput(
languageDirection == 1
? LatinKeyboard.CODE_NEXT_LANGUAGE : LatinKeyboard.CODE_PREV_LANGUAGE,
null, mLastX, mLastY);
me.setAction(MotionEvent.ACTION_CANCEL);
keyboard.keyReleased();
return super.onTouchEvent(me);
}
}
return super.onTouchEvent(me);
}

64
java/src/com/android/inputmethod/keyboard/PointerTracker.java
View file

@ -19,6 +19,7 @@ package com.android.inputmethod.keyboard;
import com.android.inputmethod.keyboard.KeyboardView.UIHandler;
import com.android.inputmethod.latin.LatinImeLogger;
import com.android.inputmethod.latin.R;
import com.android.inputmethod.latin.SubtypeSwitcher;
import android.content.res.Resources;
import android.util.Log;
@ -90,6 +91,12 @@ public class PointerTracker {
// ignore modifier key if true
private boolean mIgnoreModifierKey;
// TODO: Remove these hacking variables
// true if this pointer is in sliding language switch
private boolean mIsInSlidingLanguageSwitch;
private int mSpaceKeyIndex;
private final SubtypeSwitcher mSubtypeSwitcher;
// Empty {@link KeyboardActionListener}
private static final KeyboardActionListener EMPTY_LISTENER = new KeyboardActionListener() {
@Override
@ -129,6 +136,7 @@ public class PointerTracker {
R.dimen.config_touch_noise_threshold_distance);
mTouchNoiseThresholdDistanceSquared = (int)(
touchNoiseThresholdDistance * touchNoiseThresholdDistance);
mSubtypeSwitcher = SubtypeSwitcher.getInstance();
}
public void setOnKeyboardActionListener(KeyboardActionListener listener) {
@ -338,6 +346,7 @@ public class PointerTracker {
mKeyAlreadyProcessed = false;
mIsRepeatableKey = false;
mIsInSlidingKeyInput = false;
mIsInSlidingLanguageSwitch = false;
mIgnoreModifierKey = false;
if (isValidKeyIndex(keyIndex)) {
// This onPress call may have changed keyboard layout. Those cases are detected at
@ -374,6 +383,12 @@ public class PointerTracker {
return;
final PointerTrackerKeyState keyState = mKeyState;
// TODO: Remove this hacking code
if (mIsInSlidingLanguageSwitch) {
((LatinKeyboard)mKeyboard).updateSpacebarPreviewIcon(x - keyState.getKeyX());
showKeyPreview(mSpaceKeyIndex);
return;
}
final int lastX = keyState.getLastX();
final int lastY = keyState.getLastY();
final int oldKeyIndex = keyState.getKeyIndex();
@ -428,11 +443,25 @@ public class PointerTracker {
dismissKeyPreview();
setReleasedKeyGraphics(oldKeyIndex);
}
return;
}
} else if (mKeyboard.needSpacebarPreview(keyIndex)) {
// Display spacebar slide language switcher.
showKeyPreview(keyIndex);
}
// TODO: Remove this hack code
else if (isSpaceKey(keyIndex) && !mIsInSlidingLanguageSwitch
&& mKeyboard instanceof LatinKeyboard) {
final LatinKeyboard keyboard = ((LatinKeyboard)mKeyboard);
if (mSubtypeSwitcher.useSpacebarLanguageSwitcher()
&& mSubtypeSwitcher.getEnabledKeyboardLocaleCount() > 1) {
final int diff = x - keyState.getKeyX();
if (keyboard.shouldTriggerSpacebarSlidingLanguageSwitch(diff)) {
// Detect start sliding language switch.
mIsInSlidingLanguageSwitch = true;
mSpaceKeyIndex = keyIndex;
keyboard.updateSpacebarPreviewIcon(diff);
// Display spacebar slide language switcher.
showKeyPreview(keyIndex);
queue.releaseAllPointersExcept(this, eventTime, true);
}
}
}
} else {
if (oldKey != null && isMajorEnoughMoveToBeOnNewKey(x, y, keyIndex)) {
@ -447,7 +476,6 @@ public class PointerTracker {
} else {
mKeyAlreadyProcessed = true;
dismissKeyPreview();
return;
}
}
}
@ -462,7 +490,7 @@ public class PointerTracker {
if (isModifier()) {
// Before processing an up event of modifier key, all pointers already being
// tracked should be released.
queue.releaseAllPointersExcept(this, eventTime);
queue.releaseAllPointersExcept(this, eventTime, true);
} else {
queue.releaseAllPointersOlderThan(this, eventTime);
}
@ -474,8 +502,10 @@ public class PointerTracker {
// Let this pointer tracker know that one of newer-than-this pointer trackers got an up event.
// This pointer tracker needs to keep the key top graphics "pressed", but needs to get a
// "virtual" up event.
public void onPhantomUpEvent(int x, int y, long eventTime) {
onUpEventInternal(x, y, eventTime, false);
public void onPhantomUpEvent(int x, int y, long eventTime, boolean updateReleasedKeyGraphics) {
if (DEBUG_EVENT)
printTouchEvent("onPhntEvent:", x, y, eventTime);
onUpEventInternal(x, y, eventTime, updateReleasedKeyGraphics);
mKeyAlreadyProcessed = true;
}
@ -500,6 +530,20 @@ public class PointerTracker {
setReleasedKeyGraphics(keyIndex);
if (mKeyAlreadyProcessed)
return;
// TODO: Remove this hacking code
if (mIsInSlidingLanguageSwitch) {
setReleasedKeyGraphics(mSpaceKeyIndex);
final int languageDir = ((LatinKeyboard)mKeyboard).getLanguageChangeDirection();
if (languageDir != 0) {
final int code = (languageDir == 1)
? LatinKeyboard.CODE_NEXT_LANGUAGE : LatinKeyboard.CODE_PREV_LANGUAGE;
// This will change keyboard layout.
mListener.onCodeInput(code, new int[] {code}, keyX, keyY);
}
((LatinKeyboard)mKeyboard).updateSpacebarPreviewIcon(0);
mIsInSlidingLanguageSwitch = false;
return;
}
if (!mIsRepeatableKey) {
detectAndSendKey(keyIndex, keyX, keyY);
}
@ -515,8 +559,10 @@ public class PointerTracker {
if (DEBUG_EVENT)
printTouchEvent("onCancelEvt:", x, y, eventTime);
if (queue != null)
if (queue != null) {
queue.releaseAllPointersExcept(this, eventTime, true);
queue.remove(this);
}
onCancelEventInternal();
}

9
java/src/com/android/inputmethod/keyboard/PointerTrackerQueue.java
View file

@ -35,21 +35,22 @@ public class PointerTrackerQueue {
if (t.isModifier()) {
oldestPos++;
} else {
t.onPhantomUpEvent(t.getLastX(), t.getLastY(), eventTime);
t.onPhantomUpEvent(t.getLastX(), t.getLastY(), eventTime, false);
queue.remove(oldestPos);
}
}
}
public void releaseAllPointers(long eventTime) {
releaseAllPointersExcept(null, eventTime);
releaseAllPointersExcept(null, eventTime, true);
}
public void releaseAllPointersExcept(PointerTracker tracker, long eventTime) {
public void releaseAllPointersExcept(PointerTracker tracker, long eventTime,
boolean updateReleasedKeyGraphics) {
for (PointerTracker t : mQueue) {
if (t == tracker)
continue;
t.onPhantomUpEvent(t.getLastX(), t.getLastY(), eventTime);
t.onPhantomUpEvent(t.getLastX(), t.getLastY(), eventTime, updateReleasedKeyGraphics);
}
mQueue.clear();
if (tracker != null)

8
java/src/com/android/inputmethod/latin/LatinIME.java
View file

@ -359,11 +359,14 @@ public class LatinIME extends InputMethodServiceCompatWrapper implements Keyboar
final LatinKeyboardView inputView = mKeyboardSwitcher.getInputView();
if (inputView != null) {
final LatinKeyboard keyboard = mKeyboardSwitcher.getLatinKeyboard();
// The language is always displayed when the delay is negative.
final boolean needsToDisplayLanguage = localeChanged
|| mConfigDelayBeforeFadeoutLanguageOnSpacebar < 0;
// The language is never displayed when the delay is zero.
if (mConfigDelayBeforeFadeoutLanguageOnSpacebar != 0)
inputView.setSpacebarTextFadeFactor(localeChanged ? 1.0f
inputView.setSpacebarTextFadeFactor(needsToDisplayLanguage ? 1.0f
: mConfigFinalFadeoutFactorOfLanguageOnSpacebar, keyboard);
// The language is always displayed when the delay is negative.
// The fadeout animation will start when the delay is positive.
if (localeChanged && mConfigDelayBeforeFadeoutLanguageOnSpacebar > 0) {
sendMessageDelayed(obtainMessage(MSG_FADEOUT_LANGUAGE_ON_SPACEBAR, keyboard),
mConfigDelayBeforeFadeoutLanguageOnSpacebar);
@ -2058,7 +2061,6 @@ public class LatinIME extends InputMethodServiceCompatWrapper implements Keyboar
public void onRelease(int primaryCode, boolean withSliding) {
KeyboardSwitcher switcher = mKeyboardSwitcher;
// Reset any drag flags in the keyboard
switcher.keyReleased();
final boolean distinctMultiTouch = switcher.hasDistinctMultitouch();
if (distinctMultiTouch && primaryCode == Keyboard.CODE_SHIFT) {
switcher.onReleaseShift(withSliding);