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Showing popup preview only when IME is in foreground 

Bug: 3100922
Change-Id: Icd59fc3978dc1fccb523a368b0a7d4549fc2db78
main
Tadashi G. Takaoka 2010-10-17 19:10:46 +09:00
parent cd7b7d3e8f
commit 3740a26c21
2 changed files with 28 additions and 10 deletions
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4
java/src/com/android/inputmethod/latin/LatinIME.java
View File

@ -680,6 +680,7 @@ public class LatinIME extends InputMethodService
// If we just entered a text field, maybe it has some old text that requires correction
checkReCorrectionOnStart();
checkTutorial(attribute.privateImeOptions);
inputView.setForeground(true);
if (TRACE) Debug.startMethodTracing("/data/trace/latinime");
}
@ -731,6 +732,9 @@ public class LatinIME extends InputMethodService
@Override
public void onFinishInputView(boolean finishingInput) {
super.onFinishInputView(finishingInput);
LatinKeyboardBaseView inputView = mKeyboardSwitcher.getInputView();
if (inputView != null)
inputView.setForeground(false);
// Remove penging messages related to update suggestions
mHandler.removeMessages(MSG_UPDATE_SUGGESTIONS);
mHandler.removeMessages(MSG_UPDATE_OLD_SUGGESTIONS);

34
java/src/com/android/inputmethod/latin/LatinKeyboardBaseView.java
View File

@ -43,6 +43,7 @@ import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.view.WindowManager;
import android.widget.PopupWindow;
import android.widget.TextView;
@ -184,6 +185,7 @@ public class LatinKeyboardBaseView extends View implements PointerTracker.UIProx
private int mKeyboardVerticalGap;
// Key preview popup
private boolean mInForeground;
private TextView mPreviewText;
private PopupWindow mPreviewPopup;
private int mPreviewTextSizeLarge;
@ -573,7 +575,7 @@ public class LatinKeyboardBaseView extends View implements PointerTracker.UIProx
/**
* Attaches a keyboard to this view. The keyboard can be switched at any time and the
* view will re-layout itself to accommodate the keyboard.
* @see Keyboard
* @see BaseKeyboard
* @see #getKeyboard()
* @param keyboard the keyboard to display in this view
*/
@ -603,7 +605,7 @@ public class LatinKeyboardBaseView extends View implements PointerTracker.UIProx
/**
* Returns the current keyboard being displayed by this view.
* @return the currently attached keyboard
* @see #setKeyboard(Keyboard)
* @see #setKeyboard(BaseKeyboard)
*/
public BaseKeyboard getKeyboard() {
return mKeyboard;
@ -918,6 +920,10 @@ public class LatinKeyboardBaseView extends View implements PointerTracker.UIProx
mDirtyRect.setEmpty();
}
public void setForeground(boolean foreground) {
mInForeground = foreground;
}
// TODO: clean up this method.
private void dismissKeyPreview() {
for (PointerTracker tracker : mPointerTrackers)
@ -951,7 +957,10 @@ public class LatinKeyboardBaseView extends View implements PointerTracker.UIProx
// TODO Must fix popup preview on xlarge layout
private void showKey(final int keyIndex, PointerTracker tracker) {
Key key = tracker.getKey(keyIndex);
if (key == null)
// If keyIndex is invalid or IME is already closed, we must not show key preview.
// Trying to show preview PopupWindow while root window is closed causes
// WindowManager.BadTokenException.
if (key == null || !mInForeground)
return;
// Should not draw number hint icons
if (key.icon != null && key.label == null) {
@ -1012,13 +1021,18 @@ public class LatinKeyboardBaseView extends View implements PointerTracker.UIProx
popupPreviewY += popupHeight;
}
if (mPreviewPopup.isShowing()) {
mPreviewPopup.update(popupPreviewX, popupPreviewY, popupWidth, popupHeight);
} else {
mPreviewPopup.setWidth(popupWidth);
mPreviewPopup.setHeight(popupHeight);
mPreviewPopup.showAtLocation(mMiniKeyboardParent, Gravity.NO_GRAVITY,
popupPreviewX, popupPreviewY);
try {
if (mPreviewPopup.isShowing()) {
mPreviewPopup.update(popupPreviewX, popupPreviewY, popupWidth, popupHeight);
} else {
mPreviewPopup.setWidth(popupWidth);
mPreviewPopup.setHeight(popupHeight);
mPreviewPopup.showAtLocation(mMiniKeyboardParent, Gravity.NO_GRAVITY,
popupPreviewX, popupPreviewY);
}
} catch (WindowManager.BadTokenException e) {
// Swallow the exception which will be happened when IME is already closed.
Log.w(TAG, "LatinIME is already closed when tried showing key preview.");
}
// Record popup preview position to display mini-keyboard later at the same positon
mPopupPreviewDisplayedY = popupPreviewY;