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-rw-r--r--java/src/com/android/inputmethod/accessibility/AccessibleKeyboardViewProxy.java10
-rw-r--r--java/src/com/android/inputmethod/keyboard/Key.java13
-rw-r--r--java/src/com/android/inputmethod/keyboard/KeyboardView.java14
-rw-r--r--java/src/com/android/inputmethod/keyboard/MainKeyboardView.java11
-rw-r--r--java/src/com/android/inputmethod/keyboard/internal/GesturePreviewTrail.java25
-rw-r--r--java/src/com/android/inputmethod/keyboard/internal/KeyboardParams.java4
-rw-r--r--java/src/com/android/inputmethod/keyboard/internal/MoreKeySpec.java27
-rw-r--r--java/src/com/android/inputmethod/keyboard/internal/PreviewPlacerView.java40
-rw-r--r--java/src/com/android/inputmethod/latin/AutoCorrection.java6
-rw-r--r--java/src/com/android/inputmethod/latin/LatinIME.java33
-rw-r--r--java/src/com/android/inputmethod/latin/RichInputConnection.java179
-rw-r--r--java/src/com/android/inputmethod/latin/Suggest.java6
-rw-r--r--java/src/com/android/inputmethod/latin/UserHistoryDictIOUtils.java5
-rw-r--r--java/src/com/android/inputmethod/latin/makedict/BinaryDictInputOutput.java6
14 files changed, 327 insertions, 52 deletions
diff --git a/java/src/com/android/inputmethod/accessibility/AccessibleKeyboardViewProxy.java b/java/src/com/android/inputmethod/accessibility/AccessibleKeyboardViewProxy.java
index 77940c086..01220a58a 100644
--- a/java/src/com/android/inputmethod/accessibility/AccessibleKeyboardViewProxy.java
+++ b/java/src/com/android/inputmethod/accessibility/AccessibleKeyboardViewProxy.java
@@ -105,15 +105,15 @@ public class AccessibleKeyboardViewProxy extends AccessibilityDelegateCompat {
}
/**
- * Receives motion events when touch exploration is turned on in SDK
- * versions ICS and higher.
+ * Intercepts touch events before dispatch when touch exploration is turned
+ * on in ICS and higher.
*
- * @param event The motion event.
+ * @param event The motion event being dispatched.
* @return {@code true} if the event is handled
*/
- public boolean onTouchEvent(MotionEvent event) {
+ public boolean dispatchTouchEvent(MotionEvent event) {
// To avoid accidental key presses during touch exploration, always drop
- // non-hover touch events.
+ // touch events generated by the user.
return false;
}
diff --git a/java/src/com/android/inputmethod/keyboard/Key.java b/java/src/com/android/inputmethod/keyboard/Key.java
index 03c216474..cb120a33e 100644
--- a/java/src/com/android/inputmethod/keyboard/Key.java
+++ b/java/src/com/android/inputmethod/keyboard/Key.java
@@ -52,7 +52,7 @@ import java.util.Locale;
/**
* Class for describing the position and characteristics of a single key in the keyboard.
*/
-public class Key {
+public class Key implements Comparable<Key> {
private static final String TAG = Key.class.getSimpleName();
/**
@@ -410,7 +410,7 @@ public class Key {
});
}
- private boolean equals(final Key o) {
+ private boolean equalsInternal(final Key o) {
if (this == o) return true;
return o.mX == mX
&& o.mY == mY
@@ -428,13 +428,20 @@ public class Key {
}
@Override
+ public int compareTo(Key o) {
+ if (equalsInternal(o)) return 0;
+ if (mHashCode > o.mHashCode) return 1;
+ return -1;
+ }
+
+ @Override
public int hashCode() {
return mHashCode;
}
@Override
public boolean equals(final Object o) {
- return o instanceof Key && equals((Key)o);
+ return o instanceof Key && equalsInternal((Key)o);
}
@Override
diff --git a/java/src/com/android/inputmethod/keyboard/KeyboardView.java b/java/src/com/android/inputmethod/keyboard/KeyboardView.java
index db3a7b1e9..27c3cc3e3 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyboardView.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyboardView.java
@@ -182,7 +182,7 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
private final Region mClipRegion = new Region();
private Bitmap mOffscreenBuffer;
/** The canvas for the above mutable keyboard bitmap */
- private Canvas mOffscreenCanvas;
+ private final Canvas mOffscreenCanvas = new Canvas();
private final Paint mPaint = new Paint();
private final Paint.FontMetrics mFontMetrics = new Paint.FontMetrics();
// This sparse array caches key label text height in pixel indexed by key label text size.
@@ -365,7 +365,8 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
if (bufferNeedsUpdates || mOffscreenBuffer == null) {
if (maybeAllocateOffscreenBuffer()) {
mInvalidateAllKeys = true;
- maybeCreateOffscreenCanvas();
+ // TODO: Stop using the offscreen canvas even when in software rendering
+ mOffscreenCanvas.setBitmap(mOffscreenBuffer);
}
onDrawKeyboard(mOffscreenCanvas);
}
@@ -394,15 +395,6 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
}
}
- private void maybeCreateOffscreenCanvas() {
- // TODO: Stop using the offscreen canvas even when in software rendering
- if (mOffscreenCanvas != null) {
- mOffscreenCanvas.setBitmap(mOffscreenBuffer);
- } else {
- mOffscreenCanvas = new Canvas(mOffscreenBuffer);
- }
- }
-
private void onDrawKeyboard(final Canvas canvas) {
if (mKeyboard == null) return;
diff --git a/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java b/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java
index f6b66a79e..4ed0f58e1 100644
--- a/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java
+++ b/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java
@@ -661,13 +661,18 @@ public class MainKeyboardView extends KeyboardView implements PointerTracker.Key
}
@Override
+ public boolean dispatchTouchEvent(MotionEvent event) {
+ if (AccessibilityUtils.getInstance().isTouchExplorationEnabled()) {
+ return AccessibleKeyboardViewProxy.getInstance().dispatchTouchEvent(event);
+ }
+ return super.dispatchTouchEvent(event);
+ }
+
+ @Override
public boolean onTouchEvent(final MotionEvent me) {
if (getKeyboard() == null) {
return false;
}
- if (AccessibilityUtils.getInstance().isTouchExplorationEnabled()) {
- return AccessibleKeyboardViewProxy.getInstance().onTouchEvent(me);
- }
return mTouchScreenRegulator.onTouchEvent(me);
}
diff --git a/java/src/com/android/inputmethod/keyboard/internal/GesturePreviewTrail.java b/java/src/com/android/inputmethod/keyboard/internal/GesturePreviewTrail.java
index 95c9572b3..4311fa775 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/GesturePreviewTrail.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/GesturePreviewTrail.java
@@ -17,9 +17,7 @@ package com.android.inputmethod.keyboard.internal;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Paint;
-import android.graphics.PorterDuff;
-import android.graphics.PorterDuffXfermode;
-import android.graphics.Xfermode;
+import android.graphics.Rect;
import android.os.SystemClock;
import com.android.inputmethod.latin.Constants;
@@ -118,17 +116,16 @@ final class GesturePreviewTrail {
/ params.mTrailLingerDuration, 0.0f);
}
- private final static Xfermode PORTER_DUFF_MODE_SRC =
- new PorterDuffXfermode(PorterDuff.Mode.SRC);
-
/**
* Draw gesture preview trail
* @param canvas The canvas to draw the gesture preview trail
* @param paint The paint object to be used to draw the gesture preview trail
+ * @param outBoundsRect the bounding box of this gesture trail drawing
* @param params The drawing parameters of gesture preview trail
* @return true if some gesture preview trails remain to be drawn
*/
- public boolean drawGestureTrail(final Canvas canvas, final Paint paint, final Params params) {
+ public boolean drawGestureTrail(final Canvas canvas, final Paint paint,
+ final Rect outBoundsRect, final Params params) {
final int trailSize = mEventTimes.getLength();
if (trailSize == 0) {
return false;
@@ -149,12 +146,14 @@ final class GesturePreviewTrail {
mTrailStartIndex = startIndex;
if (startIndex < trailSize) {
- int lastX = getXCoordValue(xCoords[startIndex]);
- int lastY = yCoords[startIndex];
paint.setColor(params.mTrailColor);
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeCap(Paint.Cap.ROUND);
- paint.setXfermode(PORTER_DUFF_MODE_SRC);
+ int lastX = getXCoordValue(xCoords[startIndex]);
+ int lastY = yCoords[startIndex];
+ float maxWidth = getWidth(sinceDown - eventTimes[startIndex], params);
+ // Initialize bounds rectangle.
+ outBoundsRect.set(lastX, lastY, lastX, lastY);
for (int i = startIndex + 1; i < trailSize - 1; i++) {
final int x = xCoords[i];
final int y = yCoords[i];
@@ -166,10 +165,16 @@ final class GesturePreviewTrail {
final float width = getWidth(elapsedTime, params);
paint.setStrokeWidth(width);
canvas.drawLine(lastX, lastY, x, y, paint);
+ // Take union for the bounds.
+ outBoundsRect.union(x, y);
+ maxWidth = Math.max(maxWidth, width);
}
lastX = getXCoordValue(x);
lastY = y;
}
+ // Take care of trail line width.
+ final int inset = -((int)maxWidth + 1);
+ outBoundsRect.inset(inset, inset);
}
final int newSize = trailSize - startIndex;
diff --git a/java/src/com/android/inputmethod/keyboard/internal/KeyboardParams.java b/java/src/com/android/inputmethod/keyboard/internal/KeyboardParams.java
index ab5d31d42..e6fe50e02 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/KeyboardParams.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/KeyboardParams.java
@@ -24,7 +24,7 @@ import com.android.inputmethod.keyboard.KeyboardId;
import com.android.inputmethod.latin.CollectionUtils;
import java.util.ArrayList;
-import java.util.HashSet;
+import java.util.TreeSet;
public class KeyboardParams {
public KeyboardId mId;
@@ -58,7 +58,7 @@ public class KeyboardParams {
public int GRID_WIDTH;
public int GRID_HEIGHT;
- public final HashSet<Key> mKeys = CollectionUtils.newHashSet();
+ public final TreeSet<Key> mKeys = CollectionUtils.newTreeSet(); // ordered set
public final ArrayList<Key> mShiftKeys = CollectionUtils.newArrayList();
public final ArrayList<Key> mAltCodeKeysWhileTyping = CollectionUtils.newArrayList();
public final KeyboardIconsSet mIconsSet = new KeyboardIconsSet();
diff --git a/java/src/com/android/inputmethod/keyboard/internal/MoreKeySpec.java b/java/src/com/android/inputmethod/keyboard/internal/MoreKeySpec.java
index 5da26543f..550391b49 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/MoreKeySpec.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/MoreKeySpec.java
@@ -16,12 +16,14 @@
package com.android.inputmethod.keyboard.internal;
+import android.text.TextUtils;
+
import com.android.inputmethod.keyboard.Keyboard;
import com.android.inputmethod.latin.StringUtils;
import java.util.Locale;
-public class MoreKeySpec {
+public final class MoreKeySpec {
public final int mCode;
public final String mLabel;
public final String mOutputText;
@@ -47,6 +49,29 @@ public class MoreKeySpec {
}
@Override
+ public int hashCode() {
+ int hashCode = 1;
+ hashCode = 31 + mCode;
+ hashCode = hashCode * 31 + mIconId;
+ hashCode = hashCode * 31 + (mLabel == null ? 0 : mLabel.hashCode());
+ hashCode = hashCode * 31 + (mOutputText == null ? 0 : mOutputText.hashCode());
+ return hashCode;
+ }
+
+ @Override
+ public boolean equals(final Object o) {
+ if (this == o) return true;
+ if (o instanceof MoreKeySpec) {
+ final MoreKeySpec other = (MoreKeySpec)o;
+ return mCode == other.mCode
+ && mIconId == other.mIconId
+ && TextUtils.equals(mLabel, other.mLabel)
+ && TextUtils.equals(mOutputText, other.mOutputText);
+ }
+ return false;
+ }
+
+ @Override
public String toString() {
final String label = (mIconId == KeyboardIconsSet.ICON_UNDEFINED ? mLabel
: KeySpecParser.PREFIX_ICON + KeyboardIconsSet.getIconName(mIconId));
diff --git a/java/src/com/android/inputmethod/keyboard/internal/PreviewPlacerView.java b/java/src/com/android/inputmethod/keyboard/internal/PreviewPlacerView.java
index dbde4ef39..7104e3a12 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/PreviewPlacerView.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/PreviewPlacerView.java
@@ -18,7 +18,9 @@ package com.android.inputmethod.keyboard.internal;
import android.content.Context;
import android.content.res.TypedArray;
+import android.graphics.Bitmap;
import android.graphics.Canvas;
+import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.Align;
import android.graphics.PorterDuff;
@@ -54,6 +56,10 @@ public class PreviewPlacerView extends RelativeLayout {
private final Params mGesturePreviewTrailParams;
private final Paint mGesturePaint;
private boolean mDrawsGesturePreviewTrail;
+ private Bitmap mOffscreenBuffer;
+ private final Canvas mOffscreenCanvas = new Canvas();
+ private final Rect mOffscreenDirtyRect = new Rect();
+ private final Rect mGesturePreviewTrailBoundsRect = new Rect(); // per trail
private final Paint mTextPaint;
private String mGestureFloatingPreviewText;
@@ -154,6 +160,7 @@ public class PreviewPlacerView extends RelativeLayout {
final Paint gesturePaint = new Paint();
gesturePaint.setAntiAlias(true);
+ gesturePaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC));
mGesturePaint = gesturePaint;
final Paint textPaint = new Paint();
@@ -199,10 +206,30 @@ public class PreviewPlacerView extends RelativeLayout {
}
@Override
+ protected void onDetachedFromWindow() {
+ if (mOffscreenBuffer != null) {
+ mOffscreenBuffer.recycle();
+ mOffscreenBuffer = null;
+ }
+ }
+
+ @Override
public void onDraw(final Canvas canvas) {
super.onDraw(canvas);
canvas.translate(mXOrigin, mYOrigin);
if (mDrawsGesturePreviewTrail) {
+ if (mOffscreenBuffer == null) {
+ mOffscreenBuffer = Bitmap.createBitmap(
+ getWidth(), getHeight(), Bitmap.Config.ARGB_8888);
+ mOffscreenCanvas.setBitmap(mOffscreenBuffer);
+ }
+ if (!mOffscreenDirtyRect.isEmpty()) {
+ // Clear previous dirty rectangle.
+ mGesturePaint.setColor(Color.TRANSPARENT);
+ mGesturePaint.setStyle(Paint.Style.FILL);
+ mOffscreenCanvas.drawRect(mOffscreenDirtyRect, mGesturePaint);
+ mOffscreenDirtyRect.setEmpty();
+ }
boolean needsUpdatingGesturePreviewTrail = false;
synchronized (mGesturePreviewTrails) {
// Trails count == fingers count that have ever been active.
@@ -210,10 +237,18 @@ public class PreviewPlacerView extends RelativeLayout {
for (int index = 0; index < trailsCount; index++) {
final GesturePreviewTrail trail = mGesturePreviewTrails.valueAt(index);
needsUpdatingGesturePreviewTrail |=
- trail.drawGestureTrail(canvas, mGesturePaint,
- mGesturePreviewTrailParams);
+ trail.drawGestureTrail(mOffscreenCanvas, mGesturePaint,
+ mGesturePreviewTrailBoundsRect, mGesturePreviewTrailParams);
+ // {@link #mGesturePreviewTrailBoundsRect} has bounding box of the trail.
+ mOffscreenDirtyRect.union(mGesturePreviewTrailBoundsRect);
}
}
+ if (!mOffscreenDirtyRect.isEmpty()) {
+ canvas.drawBitmap(mOffscreenBuffer, mOffscreenDirtyRect, mOffscreenDirtyRect,
+ mGesturePaint);
+ // Note: Defer clearing the dirty rectangle here because we will get cleared
+ // rectangle on the canvas.
+ }
if (needsUpdatingGesturePreviewTrail) {
mDrawingHandler.postUpdateGestureTrailPreview();
}
@@ -263,7 +298,6 @@ public class PreviewPlacerView extends RelativeLayout {
final float round = mGestureFloatingPreviewRoundRadius;
paint.setColor(mGestureFloatingPreviewColor);
canvas.drawRoundRect(rectangle, round, round, paint);
-
// Paint the text preview
paint.setColor(mGestureFloatingPreviewTextColor);
final float textX = rectX + hPad + textWidth / 2.0f;
diff --git a/java/src/com/android/inputmethod/latin/AutoCorrection.java b/java/src/com/android/inputmethod/latin/AutoCorrection.java
index 01ba30077..f425e360a 100644
--- a/java/src/com/android/inputmethod/latin/AutoCorrection.java
+++ b/java/src/com/android/inputmethod/latin/AutoCorrection.java
@@ -73,11 +73,11 @@ public class AutoCorrection {
return maxFreq;
}
- // Returns true if this isn't in any dictionary.
- public static boolean isNotAWord(
+ // Returns true if this is in any of the dictionaries.
+ public static boolean isInTheDictionary(
final ConcurrentHashMap<String, Dictionary> dictionaries,
final CharSequence word, final boolean ignoreCase) {
- return !isValidWord(dictionaries, word, ignoreCase);
+ return isValidWord(dictionaries, word, ignoreCase);
}
public static boolean suggestionExceedsAutoCorrectionThreshold(SuggestedWordInfo suggestion,
diff --git a/java/src/com/android/inputmethod/latin/LatinIME.java b/java/src/com/android/inputmethod/latin/LatinIME.java
index 96c6d6f98..78c65e0c7 100644
--- a/java/src/com/android/inputmethod/latin/LatinIME.java
+++ b/java/src/com/android/inputmethod/latin/LatinIME.java
@@ -733,6 +733,8 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
mainKeyboardView.setGesturePreviewMode(mCurrentSettings.mGesturePreviewTrailEnabled,
mCurrentSettings.mGestureFloatingPreviewTextEnabled);
+ mConnection.resetCachesUponCursorMove(mLastSelectionStart);
+
if (TRACE) Debug.startMethodTracing("/data/trace/latinime");
}
@@ -839,7 +841,7 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
mSpaceState = SPACE_STATE_NONE;
if ((!mWordComposer.isComposingWord()) || selectionChanged || noComposingSpan) {
- resetEntireInputState();
+ resetEntireInputState(newSelStart);
}
mHandler.postUpdateShiftState();
@@ -1043,14 +1045,14 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
// This will reset the whole input state to the starting state. It will clear
// the composing word, reset the last composed word, tell the inputconnection about it.
- private void resetEntireInputState() {
+ private void resetEntireInputState(final int newCursorPosition) {
resetComposingState(true /* alsoResetLastComposedWord */);
if (mCurrentSettings.mBigramPredictionEnabled) {
clearSuggestionStrip();
} else {
setSuggestionStrip(mCurrentSettings.mSuggestPuncList, false);
}
- mConnection.finishComposingText();
+ mConnection.resetCachesUponCursorMove(newCursorPosition);
}
private void resetComposingState(final boolean alsoResetLastComposedWord) {
@@ -1220,7 +1222,7 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
}
}
- private void sendUpDownEnterOrBackspace(final int code) {
+ private void sendDownUpKeyEventForBackwardCompatibility(final int code) {
final long eventTime = SystemClock.uptimeMillis();
mConnection.sendKeyEvent(new KeyEvent(eventTime, eventTime,
KeyEvent.ACTION_DOWN, code, 0, 0, KeyCharacterMap.VIRTUAL_KEYBOARD, 0,
@@ -1234,7 +1236,7 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
// TODO: Remove this special handling of digit letters.
// For backward compatibility. See {@link InputMethodService#sendKeyChar(char)}.
if (code >= '0' && code <= '9') {
- super.sendKeyChar((char)code);
+ sendDownUpKeyEventForBackwardCompatibility(code - '0' + KeyEvent.KEYCODE_0);
if (ProductionFlag.IS_EXPERIMENTAL) {
ResearchLogger.latinIME_sendKeyCodePoint(code);
}
@@ -1249,7 +1251,7 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
// a hardware keyboard event on pressing enter or delete. This is bad for many
// reasons (there are race conditions with commits) but some applications are
// relying on this behavior so we continue to support it for older apps.
- sendUpDownEnterOrBackspace(KeyEvent.KEYCODE_ENTER);
+ sendDownUpKeyEventForBackwardCompatibility(KeyEvent.KEYCODE_ENTER);
} else {
final String text = new String(new int[] { code }, 0, 1);
mConnection.commitText(text, text.length());
@@ -1525,7 +1527,7 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
// a hardware keyboard event on pressing enter or delete. This is bad for many
// reasons (there are race conditions with commits) but some applications are
// relying on this behavior so we continue to support it for older apps.
- sendUpDownEnterOrBackspace(KeyEvent.KEYCODE_DEL);
+ sendDownUpKeyEventForBackwardCompatibility(KeyEvent.KEYCODE_DEL);
} else {
mConnection.deleteSurroundingText(1, 0);
}
@@ -1862,7 +1864,11 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
separatorString);
if (!typedWord.equals(autoCorrection)) {
// This will make the correction flash for a short while as a visual clue
- // to the user that auto-correction happened.
+ // to the user that auto-correction happened. It has no other effect; in particular
+ // note that this won't affect the text inside the text field AT ALL: it only makes
+ // the segment of text starting at the supplied index and running for the length
+ // of the auto-correction flash. At this moment, the "typedWord" argument is
+ // ignored by TextView.
mConnection.commitCorrection(
new CorrectionInfo(mLastSelectionEnd - typedWord.length(),
typedWord, autoCorrection));
@@ -2229,6 +2235,17 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
dialog.show();
}
+ public void debugDumpStateAndCrashWithException(final String context) {
+ final StringBuilder s = new StringBuilder();
+ s.append("Target application : ").append(mTargetApplicationInfo.name)
+ .append("\nPackage : ").append(mTargetApplicationInfo.packageName)
+ .append("\nTarget app sdk version : ")
+ .append(mTargetApplicationInfo.targetSdkVersion)
+ .append("\nAttributes : ").append(mCurrentSettings.getInputAttributesDebugString())
+ .append("\nContext : ").append(context);
+ throw new RuntimeException(s.toString());
+ }
+
@Override
protected void dump(FileDescriptor fd, PrintWriter fout, String[] args) {
super.dump(fd, fout, args);
diff --git a/java/src/com/android/inputmethod/latin/RichInputConnection.java b/java/src/com/android/inputmethod/latin/RichInputConnection.java
index 41e59e92d..37e1dbb69 100644
--- a/java/src/com/android/inputmethod/latin/RichInputConnection.java
+++ b/java/src/com/android/inputmethod/latin/RichInputConnection.java
@@ -33,16 +33,47 @@ import com.android.inputmethod.research.ResearchLogger;
import java.util.regex.Pattern;
/**
- * Wrapper for InputConnection to simplify interaction
+ * Enrichment class for InputConnection to simplify interaction and add functionality.
+ *
+ * This class serves as a wrapper to be able to simply add hooks to any calls to the underlying
+ * InputConnection. It also keeps track of a number of things to avoid having to call upon IPC
+ * all the time to find out what text is in the buffer, when we need it to determine caps mode
+ * for example.
*/
public class RichInputConnection {
private static final String TAG = RichInputConnection.class.getSimpleName();
private static final boolean DBG = false;
+ private static final boolean DEBUG_PREVIOUS_TEXT = false;
// Provision for a long word pair and a separator
private static final int LOOKBACK_CHARACTER_NUM = BinaryDictionary.MAX_WORD_LENGTH * 2 + 1;
private static final Pattern spaceRegex = Pattern.compile("\\s+");
private static final int INVALID_CURSOR_POSITION = -1;
+ /**
+ * This variable contains the value LatinIME thinks the cursor position should be at now.
+ * This is a few steps in advance of what the TextView thinks it is, because TextView will
+ * only know after the IPC calls gets through.
+ */
+ private int mCurrentCursorPosition = INVALID_CURSOR_POSITION; // in chars, not code points
+ /**
+ * This contains the committed text immediately preceding the cursor and the composing
+ * text if any. It is refreshed when the cursor moves by calling upon the TextView.
+ */
+ private StringBuilder mCommittedTextBeforeComposingText = new StringBuilder();
+ /**
+ * This contains the currently composing text, as LatinIME thinks the TextView is seeing it.
+ */
+ private StringBuilder mComposingText = new StringBuilder();
+ /**
+ * This is a one-character string containing the character after the cursor. Since LatinIME
+ * never touches it directly, it's never modified by any means other than re-reading from the
+ * TextView when the cursor position is changed by the user.
+ */
+ private CharSequence mCharAfterTheCursor = "";
+ // A hint on how many characters to cache from the TextView. A good value of this is given by
+ // how many characters we need to be able to almost always find the caps mode.
+ private static final int DEFAULT_TEXT_CACHE_SIZE = 100;
+
private final InputMethodService mParent;
InputConnection mIC;
int mNestLevel;
@@ -52,6 +83,37 @@ public class RichInputConnection {
mNestLevel = 0;
}
+ private void checkConsistencyForDebug() {
+ final ExtractedTextRequest r = new ExtractedTextRequest();
+ r.hintMaxChars = 0;
+ r.hintMaxLines = 0;
+ r.token = 1;
+ r.flags = 0;
+ final ExtractedText et = mIC.getExtractedText(r, 0);
+ final CharSequence beforeCursor = getTextBeforeCursor(DEFAULT_TEXT_CACHE_SIZE, 0);
+ final StringBuilder internal = new StringBuilder().append(mCommittedTextBeforeComposingText)
+ .append(mComposingText);
+ if (null == et || null == beforeCursor) return;
+ final int actualLength = Math.min(beforeCursor.length(), internal.length());
+ if (internal.length() > actualLength) {
+ internal.delete(0, internal.length() - actualLength);
+ }
+ final String reference = (beforeCursor.length() <= actualLength) ? beforeCursor.toString()
+ : beforeCursor.subSequence(beforeCursor.length() - actualLength,
+ beforeCursor.length()).toString();
+ if (et.selectionStart != mCurrentCursorPosition
+ || !(reference.equals(internal.toString()))) {
+ final String context = "Expected cursor position = " + mCurrentCursorPosition
+ + "\nActual cursor position = " + et.selectionStart
+ + "\nExpected text = " + internal.length() + " " + internal
+ + "\nActual text = " + reference.length() + " " + reference;
+ ((LatinIME)mParent).debugDumpStateAndCrashWithException(context);
+ } else {
+ Log.e(TAG, Utils.getStackTrace(2));
+ Log.e(TAG, "Exp <> Actual : " + mCurrentCursorPosition + " <> " + et.selectionStart);
+ }
+ }
+
public void beginBatchEdit() {
if (++mNestLevel == 1) {
mIC = mParent.getCurrentInputConnection();
@@ -65,12 +127,30 @@ public class RichInputConnection {
Log.e(TAG, "Nest level too deep : " + mNestLevel);
}
}
+ checkBatchEdit();
+ if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
}
+
public void endBatchEdit() {
if (mNestLevel <= 0) Log.e(TAG, "Batch edit not in progress!"); // TODO: exception instead
if (--mNestLevel == 0 && null != mIC) {
mIC.endBatchEdit();
}
+ if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
+ }
+
+ public void resetCachesUponCursorMove(final int newCursorPosition) {
+ mCurrentCursorPosition = newCursorPosition;
+ mComposingText.setLength(0);
+ mCommittedTextBeforeComposingText.setLength(0);
+ mCommittedTextBeforeComposingText.append(getTextBeforeCursor(DEFAULT_TEXT_CACHE_SIZE, 0));
+ mCharAfterTheCursor = getTextAfterCursor(1, 0);
+ if (null != mIC) {
+ mIC.finishComposingText();
+ if (ProductionFlag.IS_EXPERIMENTAL) {
+ ResearchLogger.richInputConnection_finishComposingText();
+ }
+ }
}
private void checkBatchEdit() {
@@ -83,6 +163,10 @@ public class RichInputConnection {
public void finishComposingText() {
checkBatchEdit();
+ if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
+ mCommittedTextBeforeComposingText.append(mComposingText);
+ mCurrentCursorPosition += mComposingText.length();
+ mComposingText.setLength(0);
if (null != mIC) {
mIC.finishComposingText();
if (ProductionFlag.IS_EXPERIMENTAL) {
@@ -93,6 +177,10 @@ public class RichInputConnection {
public void commitText(final CharSequence text, final int i) {
checkBatchEdit();
+ if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
+ mCommittedTextBeforeComposingText.append(text);
+ mCurrentCursorPosition += text.length() - mComposingText.length();
+ mComposingText.setLength(0);
if (null != mIC) {
mIC.commitText(text, i);
if (ProductionFlag.IS_EXPERIMENTAL) {
@@ -121,12 +209,28 @@ public class RichInputConnection {
public void deleteSurroundingText(final int i, final int j) {
checkBatchEdit();
+ final int remainingChars = mComposingText.length() - i;
+ if (remainingChars >= 0) {
+ mComposingText.setLength(remainingChars);
+ } else {
+ mComposingText.setLength(0);
+ // Never cut under 0
+ final int len = Math.max(mCommittedTextBeforeComposingText.length()
+ + remainingChars, 0);
+ mCommittedTextBeforeComposingText.setLength(len);
+ }
+ if (mCurrentCursorPosition > i) {
+ mCurrentCursorPosition -= i;
+ } else {
+ mCurrentCursorPosition = 0;
+ }
if (null != mIC) {
mIC.deleteSurroundingText(i, j);
if (ProductionFlag.IS_EXPERIMENTAL) {
ResearchLogger.richInputConnection_deleteSurroundingText(i, j);
}
}
+ if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
}
public void performEditorAction(final int actionId) {
@@ -141,6 +245,44 @@ public class RichInputConnection {
public void sendKeyEvent(final KeyEvent keyEvent) {
checkBatchEdit();
+ if (keyEvent.getAction() == KeyEvent.ACTION_DOWN) {
+ if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
+ // This method is only called for enter or backspace when speaking to old
+ // applications (target SDK <= 15), or for digits.
+ // When talking to new applications we never use this method because it's inherently
+ // racy and has unpredictable results, but for backward compatibility we continue
+ // sending the key events for only Enter and Backspace because some applications
+ // mistakenly catch them to do some stuff.
+ switch (keyEvent.getKeyCode()) {
+ case KeyEvent.KEYCODE_ENTER:
+ mCommittedTextBeforeComposingText.append("\n");
+ mCurrentCursorPosition += 1;
+ break;
+ case KeyEvent.KEYCODE_DEL:
+ if (0 == mComposingText.length()) {
+ if (mCommittedTextBeforeComposingText.length() > 0) {
+ mCommittedTextBeforeComposingText.delete(
+ mCommittedTextBeforeComposingText.length() - 1,
+ mCommittedTextBeforeComposingText.length());
+ }
+ } else {
+ mComposingText.delete(mComposingText.length() - 1, mComposingText.length());
+ }
+ if (mCurrentCursorPosition > 0) mCurrentCursorPosition -= 1;
+ break;
+ case KeyEvent.KEYCODE_UNKNOWN:
+ if (null != keyEvent.getCharacters()) {
+ mCommittedTextBeforeComposingText.append(keyEvent.getCharacters());
+ mCurrentCursorPosition += keyEvent.getCharacters().length();
+ }
+ break;
+ default:
+ final String text = new String(new int[] { keyEvent.getUnicodeChar() }, 0, 1);
+ mCommittedTextBeforeComposingText.append(text);
+ mCurrentCursorPosition += text.length();
+ break;
+ }
+ }
if (null != mIC) {
mIC.sendKeyEvent(keyEvent);
if (ProductionFlag.IS_EXPERIMENTAL) {
@@ -151,48 +293,83 @@ public class RichInputConnection {
public void setComposingText(final CharSequence text, final int i) {
checkBatchEdit();
+ if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
+ mCurrentCursorPosition += text.length() - mComposingText.length();
+ mComposingText.setLength(0);
+ mComposingText.append(text);
+ // TODO: support values of i != 1. At this time, this is never called with i != 1.
if (null != mIC) {
mIC.setComposingText(text, i);
if (ProductionFlag.IS_EXPERIMENTAL) {
ResearchLogger.richInputConnection_setComposingText(text, i);
}
}
+ if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
}
public void setSelection(final int from, final int to) {
checkBatchEdit();
+ if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
if (null != mIC) {
mIC.setSelection(from, to);
if (ProductionFlag.IS_EXPERIMENTAL) {
ResearchLogger.richInputConnection_setSelection(from, to);
}
}
+ mCurrentCursorPosition = from;
+ mCommittedTextBeforeComposingText.setLength(0);
+ mCommittedTextBeforeComposingText.append(getTextBeforeCursor(DEFAULT_TEXT_CACHE_SIZE, 0));
}
public void commitCorrection(final CorrectionInfo correctionInfo) {
checkBatchEdit();
+ if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
+ // This has no effect on the text field and does not change its content. It only makes
+ // TextView flash the text for a second based on indices contained in the argument.
if (null != mIC) {
mIC.commitCorrection(correctionInfo);
if (ProductionFlag.IS_EXPERIMENTAL) {
ResearchLogger.richInputConnection_commitCorrection(correctionInfo);
}
}
+ if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
}
public void commitCompletion(final CompletionInfo completionInfo) {
checkBatchEdit();
+ if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
+ final CharSequence text = completionInfo.getText();
+ mCommittedTextBeforeComposingText.append(text);
+ mCurrentCursorPosition += text.length() - mComposingText.length();
+ mComposingText.setLength(0);
if (null != mIC) {
mIC.commitCompletion(completionInfo);
if (ProductionFlag.IS_EXPERIMENTAL) {
ResearchLogger.richInputConnection_commitCompletion(completionInfo);
}
}
+ if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
}
public CharSequence getNthPreviousWord(final String sentenceSeperators, final int n) {
mIC = mParent.getCurrentInputConnection();
if (null == mIC) return null;
final CharSequence prev = mIC.getTextBeforeCursor(LOOKBACK_CHARACTER_NUM, 0);
+ if (DEBUG_PREVIOUS_TEXT && null != prev) {
+ final int checkLength = LOOKBACK_CHARACTER_NUM - 1;
+ final String reference = prev.length() <= checkLength ? prev.toString()
+ : prev.subSequence(prev.length() - checkLength, prev.length()).toString();
+ final StringBuilder internal = new StringBuilder()
+ .append(mCommittedTextBeforeComposingText).append(mComposingText);
+ if (internal.length() > checkLength) {
+ internal.delete(0, internal.length() - checkLength);
+ if (!(reference.equals(internal.toString()))) {
+ final String context =
+ "Expected text = " + internal + "\nActual text = " + reference;
+ ((LatinIME)mParent).debugDumpStateAndCrashWithException(context);
+ }
+ }
+ }
return getNthPreviousWord(prev, sentenceSeperators, n);
}
diff --git a/java/src/com/android/inputmethod/latin/Suggest.java b/java/src/com/android/inputmethod/latin/Suggest.java
index 51ed09604..f922bc9e0 100644
--- a/java/src/com/android/inputmethod/latin/Suggest.java
+++ b/java/src/com/android/inputmethod/latin/Suggest.java
@@ -214,10 +214,12 @@ public class Suggest {
whitelistedWord = suggestionsSet.first().mWord;
}
+ // The word can be auto-corrected if it has a whitelist entry that is not itself,
+ // or if it's a 2+ characters non-word (i.e. it's not in the dictionary).
final boolean allowsToBeAutoCorrected = (null != whitelistedWord
&& !whitelistedWord.equals(consideredWord))
- || AutoCorrection.isNotAWord(mDictionaries, consideredWord,
- wordComposer.isFirstCharCapitalized());
+ || (consideredWord.length() > 1 && !AutoCorrection.isInTheDictionary(mDictionaries,
+ consideredWord, wordComposer.isFirstCharCapitalized()));
final boolean hasAutoCorrection;
// TODO: using isCorrectionEnabled here is not very good. It's probably useless, because
diff --git a/java/src/com/android/inputmethod/latin/UserHistoryDictIOUtils.java b/java/src/com/android/inputmethod/latin/UserHistoryDictIOUtils.java
index d6fa66131..1f5f1f7e6 100644
--- a/java/src/com/android/inputmethod/latin/UserHistoryDictIOUtils.java
+++ b/java/src/com/android/inputmethod/latin/UserHistoryDictIOUtils.java
@@ -91,6 +91,11 @@ public class UserHistoryDictIOUtils {
public void position(int position) {
mPosition = position;
}
+
+ @Override
+ public void put(final byte b) {
+ mBuffer[mPosition++] = b;
+ }
}
/**
diff --git a/java/src/com/android/inputmethod/latin/makedict/BinaryDictInputOutput.java b/java/src/com/android/inputmethod/latin/makedict/BinaryDictInputOutput.java
index 6775144de..fbcb5eacc 100644
--- a/java/src/com/android/inputmethod/latin/makedict/BinaryDictInputOutput.java
+++ b/java/src/com/android/inputmethod/latin/makedict/BinaryDictInputOutput.java
@@ -232,6 +232,7 @@ public class BinaryDictInputOutput {
public int readInt();
public int position();
public void position(int newPosition);
+ public void put(final byte b);
}
public static final class ByteBufferWrapper implements FusionDictionaryBufferInterface {
@@ -271,6 +272,11 @@ public class BinaryDictInputOutput {
public void position(int newPos) {
mBuffer.position(newPos);
}
+
+ @Override
+ public void put(final byte b) {
+ mBuffer.put(b);
+ }
}
/**