| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.widget; |
| |
| import com.android.internal.util.ArrayUtils; |
| import com.android.internal.widget.EditableInputConnection; |
| |
| import android.R; |
| import android.app.PendingIntent; |
| import android.app.PendingIntent.CanceledException; |
| import android.content.ClipData; |
| import android.content.ClipData.Item; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.PackageManager; |
| import android.content.res.TypedArray; |
| import android.graphics.Canvas; |
| import android.graphics.Color; |
| import android.graphics.Paint; |
| import android.graphics.Path; |
| import android.graphics.Rect; |
| import android.graphics.RectF; |
| import android.graphics.drawable.Drawable; |
| import android.inputmethodservice.ExtractEditText; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.Message; |
| import android.os.Messenger; |
| import android.os.SystemClock; |
| import android.provider.Settings; |
| import android.text.DynamicLayout; |
| import android.text.Editable; |
| import android.text.InputType; |
| import android.text.Layout; |
| import android.text.ParcelableSpan; |
| import android.text.Selection; |
| import android.text.SpanWatcher; |
| import android.text.Spannable; |
| import android.text.SpannableStringBuilder; |
| import android.text.Spanned; |
| import android.text.StaticLayout; |
| import android.text.TextUtils; |
| import android.text.method.KeyListener; |
| import android.text.method.MetaKeyKeyListener; |
| import android.text.method.MovementMethod; |
| import android.text.method.PasswordTransformationMethod; |
| import android.text.method.WordIterator; |
| import android.text.style.EasyEditSpan; |
| import android.text.style.SuggestionRangeSpan; |
| import android.text.style.SuggestionSpan; |
| import android.text.style.TextAppearanceSpan; |
| import android.text.style.URLSpan; |
| import android.util.DisplayMetrics; |
| import android.util.Log; |
| import android.view.ActionMode; |
| import android.view.ActionMode.Callback; |
| import android.view.DisplayList; |
| import android.view.DragEvent; |
| import android.view.Gravity; |
| import android.view.HardwareCanvas; |
| import android.view.LayoutInflater; |
| import android.view.Menu; |
| import android.view.MenuItem; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.view.View.DragShadowBuilder; |
| import android.view.View.OnClickListener; |
| import android.view.ViewConfiguration; |
| import android.view.ViewGroup; |
| import android.view.ViewGroup.LayoutParams; |
| import android.view.ViewParent; |
| import android.view.ViewTreeObserver; |
| import android.view.WindowManager; |
| import android.view.inputmethod.CorrectionInfo; |
| import android.view.inputmethod.EditorInfo; |
| import android.view.inputmethod.ExtractedText; |
| import android.view.inputmethod.ExtractedTextRequest; |
| import android.view.inputmethod.InputConnection; |
| import android.view.inputmethod.InputMethodManager; |
| import android.widget.AdapterView.OnItemClickListener; |
| import android.widget.TextView.Drawables; |
| import android.widget.TextView.OnEditorActionListener; |
| |
| import java.text.BreakIterator; |
| import java.util.Arrays; |
| import java.util.Comparator; |
| import java.util.HashMap; |
| |
| /** |
| * Helper class used by TextView to handle editable text views. |
| * |
| * @hide |
| */ |
| public class Editor { |
| private static final String TAG = "Editor"; |
| |
| static final int BLINK = 500; |
| private static final float[] TEMP_POSITION = new float[2]; |
| private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20; |
| |
| // Cursor Controllers. |
| InsertionPointCursorController mInsertionPointCursorController; |
| SelectionModifierCursorController mSelectionModifierCursorController; |
| ActionMode mSelectionActionMode; |
| boolean mInsertionControllerEnabled; |
| boolean mSelectionControllerEnabled; |
| |
| // Used to highlight a word when it is corrected by the IME |
| CorrectionHighlighter mCorrectionHighlighter; |
| |
| InputContentType mInputContentType; |
| InputMethodState mInputMethodState; |
| |
| DisplayList[] mTextDisplayLists; |
| |
| boolean mFrozenWithFocus; |
| boolean mSelectionMoved; |
| boolean mTouchFocusSelected; |
| |
| KeyListener mKeyListener; |
| int mInputType = EditorInfo.TYPE_NULL; |
| |
| boolean mDiscardNextActionUp; |
| boolean mIgnoreActionUpEvent; |
| |
| long mShowCursor; |
| Blink mBlink; |
| |
| boolean mCursorVisible = true; |
| boolean mSelectAllOnFocus; |
| boolean mTextIsSelectable; |
| |
| CharSequence mError; |
| boolean mErrorWasChanged; |
| ErrorPopup mErrorPopup; |
| |
| /** |
| * This flag is set if the TextView tries to display an error before it |
| * is attached to the window (so its position is still unknown). |
| * It causes the error to be shown later, when onAttachedToWindow() |
| * is called. |
| */ |
| boolean mShowErrorAfterAttach; |
| |
| boolean mInBatchEditControllers; |
| boolean mShowSoftInputOnFocus = true; |
| boolean mPreserveDetachedSelection; |
| boolean mTemporaryDetach; |
| |
| SuggestionsPopupWindow mSuggestionsPopupWindow; |
| SuggestionRangeSpan mSuggestionRangeSpan; |
| Runnable mShowSuggestionRunnable; |
| |
| final Drawable[] mCursorDrawable = new Drawable[2]; |
| int mCursorCount; // Current number of used mCursorDrawable: 0 (resource=0), 1 or 2 (split) |
| |
| private Drawable mSelectHandleLeft; |
| private Drawable mSelectHandleRight; |
| private Drawable mSelectHandleCenter; |
| |
| // Global listener that detects changes in the global position of the TextView |
| private PositionListener mPositionListener; |
| |
| float mLastDownPositionX, mLastDownPositionY; |
| Callback mCustomSelectionActionModeCallback; |
| |
| // Set when this TextView gained focus with some text selected. Will start selection mode. |
| boolean mCreatedWithASelection; |
| |
| // The span controller helps monitoring the changes to which the Editor needs to react: |
| // - EasyEditSpans, for which we have some UI to display on attach and on hide |
| // - SelectionSpans, for which we need to call updateSelection if an IME is attached |
| private SpanController mSpanController; |
| |
| WordIterator mWordIterator; |
| SpellChecker mSpellChecker; |
| |
| private Rect mTempRect; |
| |
| private TextView mTextView; |
| |
| private final UserDictionaryListener mUserDictionaryListener = new UserDictionaryListener(); |
| |
| Editor(TextView textView) { |
| mTextView = textView; |
| } |
| |
| void onAttachedToWindow() { |
| if (mShowErrorAfterAttach) { |
| showError(); |
| mShowErrorAfterAttach = false; |
| } |
| mTemporaryDetach = false; |
| |
| final ViewTreeObserver observer = mTextView.getViewTreeObserver(); |
| // No need to create the controller. |
| // The get method will add the listener on controller creation. |
| if (mInsertionPointCursorController != null) { |
| observer.addOnTouchModeChangeListener(mInsertionPointCursorController); |
| } |
| if (mSelectionModifierCursorController != null) { |
| mSelectionModifierCursorController.resetTouchOffsets(); |
| observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); |
| } |
| updateSpellCheckSpans(0, mTextView.getText().length(), |
| true /* create the spell checker if needed */); |
| |
| if (mTextView.hasTransientState() && |
| mTextView.getSelectionStart() != mTextView.getSelectionEnd()) { |
| // Since transient state is reference counted make sure it stays matched |
| // with our own calls to it for managing selection. |
| // The action mode callback will set this back again when/if the action mode starts. |
| mTextView.setHasTransientState(false); |
| |
| // We had an active selection from before, start the selection mode. |
| startSelectionActionMode(); |
| } |
| } |
| |
| void onDetachedFromWindow() { |
| if (mError != null) { |
| hideError(); |
| } |
| |
| if (mBlink != null) { |
| mBlink.removeCallbacks(mBlink); |
| } |
| |
| if (mInsertionPointCursorController != null) { |
| mInsertionPointCursorController.onDetached(); |
| } |
| |
| if (mSelectionModifierCursorController != null) { |
| mSelectionModifierCursorController.onDetached(); |
| } |
| |
| if (mShowSuggestionRunnable != null) { |
| mTextView.removeCallbacks(mShowSuggestionRunnable); |
| } |
| |
| invalidateTextDisplayList(); |
| |
| if (mSpellChecker != null) { |
| mSpellChecker.closeSession(); |
| // Forces the creation of a new SpellChecker next time this window is created. |
| // Will handle the cases where the settings has been changed in the meantime. |
| mSpellChecker = null; |
| } |
| |
| mPreserveDetachedSelection = true; |
| hideControllers(); |
| mPreserveDetachedSelection = false; |
| mTemporaryDetach = false; |
| } |
| |
| private void showError() { |
| if (mTextView.getWindowToken() == null) { |
| mShowErrorAfterAttach = true; |
| return; |
| } |
| |
| if (mErrorPopup == null) { |
| LayoutInflater inflater = LayoutInflater.from(mTextView.getContext()); |
| final TextView err = (TextView) inflater.inflate( |
| com.android.internal.R.layout.textview_hint, null); |
| |
| final float scale = mTextView.getResources().getDisplayMetrics().density; |
| mErrorPopup = new ErrorPopup(err, (int)(200 * scale + 0.5f), (int)(50 * scale + 0.5f)); |
| mErrorPopup.setFocusable(false); |
| // The user is entering text, so the input method is needed. We |
| // don't want the popup to be displayed on top of it. |
| mErrorPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); |
| } |
| |
| TextView tv = (TextView) mErrorPopup.getContentView(); |
| chooseSize(mErrorPopup, mError, tv); |
| tv.setText(mError); |
| |
| mErrorPopup.showAsDropDown(mTextView, getErrorX(), getErrorY()); |
| mErrorPopup.fixDirection(mErrorPopup.isAboveAnchor()); |
| } |
| |
| public void setError(CharSequence error, Drawable icon) { |
| mError = TextUtils.stringOrSpannedString(error); |
| mErrorWasChanged = true; |
| |
| if (mError == null) { |
| setErrorIcon(null); |
| if (mErrorPopup != null) { |
| if (mErrorPopup.isShowing()) { |
| mErrorPopup.dismiss(); |
| } |
| |
| mErrorPopup = null; |
| } |
| |
| } else { |
| setErrorIcon(icon); |
| if (mTextView.isFocused()) { |
| showError(); |
| } |
| } |
| } |
| |
| private void setErrorIcon(Drawable icon) { |
| Drawables dr = mTextView.mDrawables; |
| if (dr == null) { |
| mTextView.mDrawables = dr = new Drawables(mTextView.getContext()); |
| } |
| dr.setErrorDrawable(icon, mTextView); |
| |
| mTextView.resetResolvedDrawables(); |
| mTextView.invalidate(); |
| mTextView.requestLayout(); |
| } |
| |
| private void hideError() { |
| if (mErrorPopup != null) { |
| if (mErrorPopup.isShowing()) { |
| mErrorPopup.dismiss(); |
| } |
| } |
| |
| mShowErrorAfterAttach = false; |
| } |
| |
| /** |
| * Returns the X offset to make the pointy top of the error point |
| * at the middle of the error icon. |
| */ |
| private int getErrorX() { |
| /* |
| * The "25" is the distance between the point and the right edge |
| * of the background |
| */ |
| final float scale = mTextView.getResources().getDisplayMetrics().density; |
| |
| final Drawables dr = mTextView.mDrawables; |
| |
| final int layoutDirection = mTextView.getLayoutDirection(); |
| int errorX; |
| int offset; |
| switch (layoutDirection) { |
| default: |
| case View.LAYOUT_DIRECTION_LTR: |
| offset = - (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); |
| errorX = mTextView.getWidth() - mErrorPopup.getWidth() - |
| mTextView.getPaddingRight() + offset; |
| break; |
| case View.LAYOUT_DIRECTION_RTL: |
| offset = (dr != null ? dr.mDrawableSizeLeft : 0) / 2 - (int) (25 * scale + 0.5f); |
| errorX = mTextView.getPaddingLeft() + offset; |
| break; |
| } |
| return errorX; |
| } |
| |
| /** |
| * Returns the Y offset to make the pointy top of the error point |
| * at the bottom of the error icon. |
| */ |
| private int getErrorY() { |
| /* |
| * Compound, not extended, because the icon is not clipped |
| * if the text height is smaller. |
| */ |
| final int compoundPaddingTop = mTextView.getCompoundPaddingTop(); |
| int vspace = mTextView.getBottom() - mTextView.getTop() - |
| mTextView.getCompoundPaddingBottom() - compoundPaddingTop; |
| |
| final Drawables dr = mTextView.mDrawables; |
| |
| final int layoutDirection = mTextView.getLayoutDirection(); |
| int height; |
| switch (layoutDirection) { |
| default: |
| case View.LAYOUT_DIRECTION_LTR: |
| height = (dr != null ? dr.mDrawableHeightRight : 0); |
| break; |
| case View.LAYOUT_DIRECTION_RTL: |
| height = (dr != null ? dr.mDrawableHeightLeft : 0); |
| break; |
| } |
| |
| int icontop = compoundPaddingTop + (vspace - height) / 2; |
| |
| /* |
| * The "2" is the distance between the point and the top edge |
| * of the background. |
| */ |
| final float scale = mTextView.getResources().getDisplayMetrics().density; |
| return icontop + height - mTextView.getHeight() - (int) (2 * scale + 0.5f); |
| } |
| |
| void createInputContentTypeIfNeeded() { |
| if (mInputContentType == null) { |
| mInputContentType = new InputContentType(); |
| } |
| } |
| |
| void createInputMethodStateIfNeeded() { |
| if (mInputMethodState == null) { |
| mInputMethodState = new InputMethodState(); |
| } |
| } |
| |
| boolean isCursorVisible() { |
| // The default value is true, even when there is no associated Editor |
| return mCursorVisible && mTextView.isTextEditable(); |
| } |
| |
| void prepareCursorControllers() { |
| boolean windowSupportsHandles = false; |
| |
| ViewGroup.LayoutParams params = mTextView.getRootView().getLayoutParams(); |
| if (params instanceof WindowManager.LayoutParams) { |
| WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; |
| windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW |
| || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; |
| } |
| |
| boolean enabled = windowSupportsHandles && mTextView.getLayout() != null; |
| mInsertionControllerEnabled = enabled && isCursorVisible(); |
| mSelectionControllerEnabled = enabled && mTextView.textCanBeSelected(); |
| |
| if (!mInsertionControllerEnabled) { |
| hideInsertionPointCursorController(); |
| if (mInsertionPointCursorController != null) { |
| mInsertionPointCursorController.onDetached(); |
| mInsertionPointCursorController = null; |
| } |
| } |
| |
| if (!mSelectionControllerEnabled) { |
| stopSelectionActionMode(); |
| if (mSelectionModifierCursorController != null) { |
| mSelectionModifierCursorController.onDetached(); |
| mSelectionModifierCursorController = null; |
| } |
| } |
| } |
| |
| private void hideInsertionPointCursorController() { |
| if (mInsertionPointCursorController != null) { |
| mInsertionPointCursorController.hide(); |
| } |
| } |
| |
| /** |
| * Hides the insertion controller and stops text selection mode, hiding the selection controller |
| */ |
| void hideControllers() { |
| hideCursorControllers(); |
| hideSpanControllers(); |
| } |
| |
| private void hideSpanControllers() { |
| if (mSpanController != null) { |
| mSpanController.hide(); |
| } |
| } |
| |
| private void hideCursorControllers() { |
| if (mSuggestionsPopupWindow != null && !mSuggestionsPopupWindow.isShowingUp()) { |
| // Should be done before hide insertion point controller since it triggers a show of it |
| mSuggestionsPopupWindow.hide(); |
| } |
| hideInsertionPointCursorController(); |
| stopSelectionActionMode(); |
| } |
| |
| /** |
| * Create new SpellCheckSpans on the modified region. |
| */ |
| private void updateSpellCheckSpans(int start, int end, boolean createSpellChecker) { |
| if (mTextView.isTextEditable() && mTextView.isSuggestionsEnabled() && |
| !(mTextView instanceof ExtractEditText)) { |
| if (mSpellChecker == null && createSpellChecker) { |
| mSpellChecker = new SpellChecker(mTextView); |
| } |
| if (mSpellChecker != null) { |
| mSpellChecker.spellCheck(start, end); |
| } |
| } |
| } |
| |
| void onScreenStateChanged(int screenState) { |
| switch (screenState) { |
| case View.SCREEN_STATE_ON: |
| resumeBlink(); |
| break; |
| case View.SCREEN_STATE_OFF: |
| suspendBlink(); |
| break; |
| } |
| } |
| |
| private void suspendBlink() { |
| if (mBlink != null) { |
| mBlink.cancel(); |
| } |
| } |
| |
| private void resumeBlink() { |
| if (mBlink != null) { |
| mBlink.uncancel(); |
| makeBlink(); |
| } |
| } |
| |
| void adjustInputType(boolean password, boolean passwordInputType, |
| boolean webPasswordInputType, boolean numberPasswordInputType) { |
| // mInputType has been set from inputType, possibly modified by mInputMethod. |
| // Specialize mInputType to [web]password if we have a text class and the original input |
| // type was a password. |
| if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { |
| if (password || passwordInputType) { |
| mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) |
| | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; |
| } |
| if (webPasswordInputType) { |
| mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) |
| | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; |
| } |
| } else if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_NUMBER) { |
| if (numberPasswordInputType) { |
| mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) |
| | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; |
| } |
| } |
| } |
| |
| private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { |
| int wid = tv.getPaddingLeft() + tv.getPaddingRight(); |
| int ht = tv.getPaddingTop() + tv.getPaddingBottom(); |
| |
| int defaultWidthInPixels = mTextView.getResources().getDimensionPixelSize( |
| com.android.internal.R.dimen.textview_error_popup_default_width); |
| Layout l = new StaticLayout(text, tv.getPaint(), defaultWidthInPixels, |
| Layout.Alignment.ALIGN_NORMAL, 1, 0, true); |
| float max = 0; |
| for (int i = 0; i < l.getLineCount(); i++) { |
| max = Math.max(max, l.getLineWidth(i)); |
| } |
| |
| /* |
| * Now set the popup size to be big enough for the text plus the border capped |
| * to DEFAULT_MAX_POPUP_WIDTH |
| */ |
| pop.setWidth(wid + (int) Math.ceil(max)); |
| pop.setHeight(ht + l.getHeight()); |
| } |
| |
| void setFrame() { |
| if (mErrorPopup != null) { |
| TextView tv = (TextView) mErrorPopup.getContentView(); |
| chooseSize(mErrorPopup, mError, tv); |
| mErrorPopup.update(mTextView, getErrorX(), getErrorY(), |
| mErrorPopup.getWidth(), mErrorPopup.getHeight()); |
| } |
| } |
| |
| /** |
| * Unlike {@link TextView#textCanBeSelected()}, this method is based on the <i>current</i> state |
| * of the TextView. textCanBeSelected() has to be true (this is one of the conditions to have |
| * a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient. |
| */ |
| private boolean canSelectText() { |
| return hasSelectionController() && mTextView.getText().length() != 0; |
| } |
| |
| /** |
| * It would be better to rely on the input type for everything. A password inputType should have |
| * a password transformation. We should hence use isPasswordInputType instead of this method. |
| * |
| * We should: |
| * - Call setInputType in setKeyListener instead of changing the input type directly (which |
| * would install the correct transformation). |
| * - Refuse the installation of a non-password transformation in setTransformation if the input |
| * type is password. |
| * |
| * However, this is like this for legacy reasons and we cannot break existing apps. This method |
| * is useful since it matches what the user can see (obfuscated text or not). |
| * |
| * @return true if the current transformation method is of the password type. |
| */ |
| private boolean hasPasswordTransformationMethod() { |
| return mTextView.getTransformationMethod() instanceof PasswordTransformationMethod; |
| } |
| |
| /** |
| * Adjusts selection to the word under last touch offset. |
| * Return true if the operation was successfully performed. |
| */ |
| private boolean selectCurrentWord() { |
| if (!canSelectText()) { |
| return false; |
| } |
| |
| if (hasPasswordTransformationMethod()) { |
| // Always select all on a password field. |
| // Cut/copy menu entries are not available for passwords, but being able to select all |
| // is however useful to delete or paste to replace the entire content. |
| return mTextView.selectAllText(); |
| } |
| |
| int inputType = mTextView.getInputType(); |
| int klass = inputType & InputType.TYPE_MASK_CLASS; |
| int variation = inputType & InputType.TYPE_MASK_VARIATION; |
| |
| // Specific text field types: select the entire text for these |
| if (klass == InputType.TYPE_CLASS_NUMBER || |
| klass == InputType.TYPE_CLASS_PHONE || |
| klass == InputType.TYPE_CLASS_DATETIME || |
| variation == InputType.TYPE_TEXT_VARIATION_URI || |
| variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || |
| variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS || |
| variation == InputType.TYPE_TEXT_VARIATION_FILTER) { |
| return mTextView.selectAllText(); |
| } |
| |
| long lastTouchOffsets = getLastTouchOffsets(); |
| final int minOffset = TextUtils.unpackRangeStartFromLong(lastTouchOffsets); |
| final int maxOffset = TextUtils.unpackRangeEndFromLong(lastTouchOffsets); |
| |
| // Safety check in case standard touch event handling has been bypassed |
| if (minOffset < 0 || minOffset >= mTextView.getText().length()) return false; |
| if (maxOffset < 0 || maxOffset >= mTextView.getText().length()) return false; |
| |
| int selectionStart, selectionEnd; |
| |
| // If a URLSpan (web address, email, phone...) is found at that position, select it. |
| URLSpan[] urlSpans = ((Spanned) mTextView.getText()). |
| getSpans(minOffset, maxOffset, URLSpan.class); |
| if (urlSpans.length >= 1) { |
| URLSpan urlSpan = urlSpans[0]; |
| selectionStart = ((Spanned) mTextView.getText()).getSpanStart(urlSpan); |
| selectionEnd = ((Spanned) mTextView.getText()).getSpanEnd(urlSpan); |
| } else { |
| final WordIterator wordIterator = getWordIterator(); |
| wordIterator.setCharSequence(mTextView.getText(), minOffset, maxOffset); |
| |
| selectionStart = wordIterator.getBeginning(minOffset); |
| selectionEnd = wordIterator.getEnd(maxOffset); |
| |
| if (selectionStart == BreakIterator.DONE || selectionEnd == BreakIterator.DONE || |
| selectionStart == selectionEnd) { |
| // Possible when the word iterator does not properly handle the text's language |
| long range = getCharRange(minOffset); |
| selectionStart = TextUtils.unpackRangeStartFromLong(range); |
| selectionEnd = TextUtils.unpackRangeEndFromLong(range); |
| } |
| } |
| |
| Selection.setSelection((Spannable) mTextView.getText(), selectionStart, selectionEnd); |
| return selectionEnd > selectionStart; |
| } |
| |
| void onLocaleChanged() { |
| // Will be re-created on demand in getWordIterator with the proper new locale |
| mWordIterator = null; |
| } |
| |
| /** |
| * @hide |
| */ |
| public WordIterator getWordIterator() { |
| if (mWordIterator == null) { |
| mWordIterator = new WordIterator(mTextView.getTextServicesLocale()); |
| } |
| return mWordIterator; |
| } |
| |
| private long getCharRange(int offset) { |
| final int textLength = mTextView.getText().length(); |
| if (offset + 1 < textLength) { |
| final char currentChar = mTextView.getText().charAt(offset); |
| final char nextChar = mTextView.getText().charAt(offset + 1); |
| if (Character.isSurrogatePair(currentChar, nextChar)) { |
| return TextUtils.packRangeInLong(offset, offset + 2); |
| } |
| } |
| if (offset < textLength) { |
| return TextUtils.packRangeInLong(offset, offset + 1); |
| } |
| if (offset - 2 >= 0) { |
| final char previousChar = mTextView.getText().charAt(offset - 1); |
| final char previousPreviousChar = mTextView.getText().charAt(offset - 2); |
| if (Character.isSurrogatePair(previousPreviousChar, previousChar)) { |
| return TextUtils.packRangeInLong(offset - 2, offset); |
| } |
| } |
| if (offset - 1 >= 0) { |
| return TextUtils.packRangeInLong(offset - 1, offset); |
| } |
| return TextUtils.packRangeInLong(offset, offset); |
| } |
| |
| private boolean touchPositionIsInSelection() { |
| int selectionStart = mTextView.getSelectionStart(); |
| int selectionEnd = mTextView.getSelectionEnd(); |
| |
| if (selectionStart == selectionEnd) { |
| return false; |
| } |
| |
| if (selectionStart > selectionEnd) { |
| int tmp = selectionStart; |
| selectionStart = selectionEnd; |
| selectionEnd = tmp; |
| Selection.setSelection((Spannable) mTextView.getText(), selectionStart, selectionEnd); |
| } |
| |
| SelectionModifierCursorController selectionController = getSelectionController(); |
| int minOffset = selectionController.getMinTouchOffset(); |
| int maxOffset = selectionController.getMaxTouchOffset(); |
| |
| return ((minOffset >= selectionStart) && (maxOffset < selectionEnd)); |
| } |
| |
| private PositionListener getPositionListener() { |
| if (mPositionListener == null) { |
| mPositionListener = new PositionListener(); |
| } |
| return mPositionListener; |
| } |
| |
| private interface TextViewPositionListener { |
| public void updatePosition(int parentPositionX, int parentPositionY, |
| boolean parentPositionChanged, boolean parentScrolled); |
| } |
| |
| private boolean isPositionVisible(int positionX, int positionY) { |
| synchronized (TEMP_POSITION) { |
| final float[] position = TEMP_POSITION; |
| position[0] = positionX; |
| position[1] = positionY; |
| View view = mTextView; |
| |
| while (view != null) { |
| if (view != mTextView) { |
| // Local scroll is already taken into account in positionX/Y |
| position[0] -= view.getScrollX(); |
| position[1] -= view.getScrollY(); |
| } |
| |
| if (position[0] < 0 || position[1] < 0 || |
| position[0] > view.getWidth() || position[1] > view.getHeight()) { |
| return false; |
| } |
| |
| if (!view.getMatrix().isIdentity()) { |
| view.getMatrix().mapPoints(position); |
| } |
| |
| position[0] += view.getLeft(); |
| position[1] += view.getTop(); |
| |
| final ViewParent parent = view.getParent(); |
| if (parent instanceof View) { |
| view = (View) parent; |
| } else { |
| // We've reached the ViewRoot, stop iterating |
| view = null; |
| } |
| } |
| } |
| |
| // We've been able to walk up the view hierarchy and the position was never clipped |
| return true; |
| } |
| |
| private boolean isOffsetVisible(int offset) { |
| Layout layout = mTextView.getLayout(); |
| final int line = layout.getLineForOffset(offset); |
| final int lineBottom = layout.getLineBottom(line); |
| final int primaryHorizontal = (int) layout.getPrimaryHorizontal(offset); |
| return isPositionVisible(primaryHorizontal + mTextView.viewportToContentHorizontalOffset(), |
| lineBottom + mTextView.viewportToContentVerticalOffset()); |
| } |
| |
| /** Returns true if the screen coordinates position (x,y) corresponds to a character displayed |
| * in the view. Returns false when the position is in the empty space of left/right of text. |
| */ |
| private boolean isPositionOnText(float x, float y) { |
| Layout layout = mTextView.getLayout(); |
| if (layout == null) return false; |
| |
| final int line = mTextView.getLineAtCoordinate(y); |
| x = mTextView.convertToLocalHorizontalCoordinate(x); |
| |
| if (x < layout.getLineLeft(line)) return false; |
| if (x > layout.getLineRight(line)) return false; |
| return true; |
| } |
| |
| public boolean performLongClick(boolean handled) { |
| // Long press in empty space moves cursor and shows the Paste affordance if available. |
| if (!handled && !isPositionOnText(mLastDownPositionX, mLastDownPositionY) && |
| mInsertionControllerEnabled) { |
| final int offset = mTextView.getOffsetForPosition(mLastDownPositionX, |
| mLastDownPositionY); |
| stopSelectionActionMode(); |
| Selection.setSelection((Spannable) mTextView.getText(), offset); |
| getInsertionController().showWithActionPopup(); |
| handled = true; |
| } |
| |
| if (!handled && mSelectionActionMode != null) { |
| if (touchPositionIsInSelection()) { |
| // Start a drag |
| final int start = mTextView.getSelectionStart(); |
| final int end = mTextView.getSelectionEnd(); |
| CharSequence selectedText = mTextView.getTransformedText(start, end); |
| ClipData data = ClipData.newPlainText(null, selectedText); |
| DragLocalState localState = new DragLocalState(mTextView, start, end); |
| mTextView.startDrag(data, getTextThumbnailBuilder(selectedText), localState, 0); |
| stopSelectionActionMode(); |
| } else { |
| getSelectionController().hide(); |
| selectCurrentWord(); |
| getSelectionController().show(); |
| } |
| handled = true; |
| } |
| |
| // Start a new selection |
| if (!handled) { |
| handled = startSelectionActionMode(); |
| } |
| |
| return handled; |
| } |
| |
| private long getLastTouchOffsets() { |
| SelectionModifierCursorController selectionController = getSelectionController(); |
| final int minOffset = selectionController.getMinTouchOffset(); |
| final int maxOffset = selectionController.getMaxTouchOffset(); |
| return TextUtils.packRangeInLong(minOffset, maxOffset); |
| } |
| |
| void onFocusChanged(boolean focused, int direction) { |
| mShowCursor = SystemClock.uptimeMillis(); |
| ensureEndedBatchEdit(); |
| |
| if (focused) { |
| int selStart = mTextView.getSelectionStart(); |
| int selEnd = mTextView.getSelectionEnd(); |
| |
| // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection |
| // mode for these, unless there was a specific selection already started. |
| final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && |
| selEnd == mTextView.getText().length(); |
| |
| mCreatedWithASelection = mFrozenWithFocus && mTextView.hasSelection() && |
| !isFocusHighlighted; |
| |
| if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { |
| // If a tap was used to give focus to that view, move cursor at tap position. |
| // Has to be done before onTakeFocus, which can be overloaded. |
| final int lastTapPosition = getLastTapPosition(); |
| if (lastTapPosition >= 0) { |
| Selection.setSelection((Spannable) mTextView.getText(), lastTapPosition); |
| } |
| |
| // Note this may have to be moved out of the Editor class |
| MovementMethod mMovement = mTextView.getMovementMethod(); |
| if (mMovement != null) { |
| mMovement.onTakeFocus(mTextView, (Spannable) mTextView.getText(), direction); |
| } |
| |
| // The DecorView does not have focus when the 'Done' ExtractEditText button is |
| // pressed. Since it is the ViewAncestor's mView, it requests focus before |
| // ExtractEditText clears focus, which gives focus to the ExtractEditText. |
| // This special case ensure that we keep current selection in that case. |
| // It would be better to know why the DecorView does not have focus at that time. |
| if (((mTextView instanceof ExtractEditText) || mSelectionMoved) && |
| selStart >= 0 && selEnd >= 0) { |
| /* |
| * Someone intentionally set the selection, so let them |
| * do whatever it is that they wanted to do instead of |
| * the default on-focus behavior. We reset the selection |
| * here instead of just skipping the onTakeFocus() call |
| * because some movement methods do something other than |
| * just setting the selection in theirs and we still |
| * need to go through that path. |
| */ |
| Selection.setSelection((Spannable) mTextView.getText(), selStart, selEnd); |
| } |
| |
| if (mSelectAllOnFocus) { |
| mTextView.selectAllText(); |
| } |
| |
| mTouchFocusSelected = true; |
| } |
| |
| mFrozenWithFocus = false; |
| mSelectionMoved = false; |
| |
| if (mError != null) { |
| showError(); |
| } |
| |
| makeBlink(); |
| } else { |
| if (mError != null) { |
| hideError(); |
| } |
| // Don't leave us in the middle of a batch edit. |
| mTextView.onEndBatchEdit(); |
| |
| if (mTextView instanceof ExtractEditText) { |
| // terminateTextSelectionMode removes selection, which we want to keep when |
| // ExtractEditText goes out of focus. |
| final int selStart = mTextView.getSelectionStart(); |
| final int selEnd = mTextView.getSelectionEnd(); |
| hideControllers(); |
| Selection.setSelection((Spannable) mTextView.getText(), selStart, selEnd); |
| } else { |
| if (mTemporaryDetach) mPreserveDetachedSelection = true; |
| hideControllers(); |
| if (mTemporaryDetach) mPreserveDetachedSelection = false; |
| downgradeEasyCorrectionSpans(); |
| } |
| |
| // No need to create the controller |
| if (mSelectionModifierCursorController != null) { |
| mSelectionModifierCursorController.resetTouchOffsets(); |
| } |
| } |
| } |
| |
| /** |
| * Downgrades to simple suggestions all the easy correction spans that are not a spell check |
| * span. |
| */ |
| private void downgradeEasyCorrectionSpans() { |
| CharSequence text = mTextView.getText(); |
| if (text instanceof Spannable) { |
| Spannable spannable = (Spannable) text; |
| SuggestionSpan[] suggestionSpans = spannable.getSpans(0, |
| spannable.length(), SuggestionSpan.class); |
| for (int i = 0; i < suggestionSpans.length; i++) { |
| int flags = suggestionSpans[i].getFlags(); |
| if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 |
| && (flags & SuggestionSpan.FLAG_MISSPELLED) == 0) { |
| flags &= ~SuggestionSpan.FLAG_EASY_CORRECT; |
| suggestionSpans[i].setFlags(flags); |
| } |
| } |
| } |
| } |
| |
| void sendOnTextChanged(int start, int after) { |
| updateSpellCheckSpans(start, start + after, false); |
| |
| // Hide the controllers as soon as text is modified (typing, procedural...) |
| // We do not hide the span controllers, since they can be added when a new text is |
| // inserted into the text view (voice IME). |
| hideCursorControllers(); |
| } |
| |
| private int getLastTapPosition() { |
| // No need to create the controller at that point, no last tap position saved |
| if (mSelectionModifierCursorController != null) { |
| int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset(); |
| if (lastTapPosition >= 0) { |
| // Safety check, should not be possible. |
| if (lastTapPosition > mTextView.getText().length()) { |
| lastTapPosition = mTextView.getText().length(); |
| } |
| return lastTapPosition; |
| } |
| } |
| |
| return -1; |
| } |
| |
| void onWindowFocusChanged(boolean hasWindowFocus) { |
| if (hasWindowFocus) { |
| if (mBlink != null) { |
| mBlink.uncancel(); |
| makeBlink(); |
| } |
| } else { |
| if (mBlink != null) { |
| mBlink.cancel(); |
| } |
| if (mInputContentType != null) { |
| mInputContentType.enterDown = false; |
| } |
| // Order matters! Must be done before onParentLostFocus to rely on isShowingUp |
| hideControllers(); |
| if (mSuggestionsPopupWindow != null) { |
| mSuggestionsPopupWindow.onParentLostFocus(); |
| } |
| |
| // Don't leave us in the middle of a batch edit. Same as in onFocusChanged |
| ensureEndedBatchEdit(); |
| } |
| } |
| |
| void onTouchEvent(MotionEvent event) { |
| if (hasSelectionController()) { |
| getSelectionController().onTouchEvent(event); |
| } |
| |
| if (mShowSuggestionRunnable != null) { |
| mTextView.removeCallbacks(mShowSuggestionRunnable); |
| mShowSuggestionRunnable = null; |
| } |
| |
| if (event.getActionMasked() == MotionEvent.ACTION_DOWN) { |
| mLastDownPositionX = event.getX(); |
| mLastDownPositionY = event.getY(); |
| |
| // Reset this state; it will be re-set if super.onTouchEvent |
| // causes focus to move to the view. |
| mTouchFocusSelected = false; |
| mIgnoreActionUpEvent = false; |
| } |
| } |
| |
| public void beginBatchEdit() { |
| mInBatchEditControllers = true; |
| final InputMethodState ims = mInputMethodState; |
| if (ims != null) { |
| int nesting = ++ims.mBatchEditNesting; |
| if (nesting == 1) { |
| ims.mCursorChanged = false; |
| ims.mChangedDelta = 0; |
| if (ims.mContentChanged) { |
| // We already have a pending change from somewhere else, |
| // so turn this into a full update. |
| ims.mChangedStart = 0; |
| ims.mChangedEnd = mTextView.getText().length(); |
| } else { |
| ims.mChangedStart = EXTRACT_UNKNOWN; |
| ims.mChangedEnd = EXTRACT_UNKNOWN; |
| ims.mContentChanged = false; |
| } |
| mTextView.onBeginBatchEdit(); |
| } |
| } |
| } |
| |
| public void endBatchEdit() { |
| mInBatchEditControllers = false; |
| final InputMethodState ims = mInputMethodState; |
| if (ims != null) { |
| int nesting = --ims.mBatchEditNesting; |
| if (nesting == 0) { |
| finishBatchEdit(ims); |
| } |
| } |
| } |
| |
| void ensureEndedBatchEdit() { |
| final InputMethodState ims = mInputMethodState; |
| if (ims != null && ims.mBatchEditNesting != 0) { |
| ims.mBatchEditNesting = 0; |
| finishBatchEdit(ims); |
| } |
| } |
| |
| void finishBatchEdit(final InputMethodState ims) { |
| mTextView.onEndBatchEdit(); |
| |
| if (ims.mContentChanged || ims.mSelectionModeChanged) { |
| mTextView.updateAfterEdit(); |
| reportExtractedText(); |
| } else if (ims.mCursorChanged) { |
| // Cheesy way to get us to report the current cursor location. |
| mTextView.invalidateCursor(); |
| } |
| // sendUpdateSelection knows to avoid sending if the selection did |
| // not actually change. |
| sendUpdateSelection(); |
| } |
| |
| static final int EXTRACT_NOTHING = -2; |
| static final int EXTRACT_UNKNOWN = -1; |
| |
| boolean extractText(ExtractedTextRequest request, ExtractedText outText) { |
| return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, |
| EXTRACT_UNKNOWN, outText); |
| } |
| |
| private boolean extractTextInternal(ExtractedTextRequest request, |
| int partialStartOffset, int partialEndOffset, int delta, |
| ExtractedText outText) { |
| final CharSequence content = mTextView.getText(); |
| if (content != null) { |
| if (partialStartOffset != EXTRACT_NOTHING) { |
| final int N = content.length(); |
| if (partialStartOffset < 0) { |
| outText.partialStartOffset = outText.partialEndOffset = -1; |
| partialStartOffset = 0; |
| partialEndOffset = N; |
| } else { |
| // Now use the delta to determine the actual amount of text |
| // we need. |
| partialEndOffset += delta; |
| // Adjust offsets to ensure we contain full spans. |
| if (content instanceof Spanned) { |
| Spanned spanned = (Spanned)content; |
| Object[] spans = spanned.getSpans(partialStartOffset, |
| partialEndOffset, ParcelableSpan.class); |
| int i = spans.length; |
| while (i > 0) { |
| i--; |
| int j = spanned.getSpanStart(spans[i]); |
| if (j < partialStartOffset) partialStartOffset = j; |
| j = spanned.getSpanEnd(spans[i]); |
| if (j > partialEndOffset) partialEndOffset = j; |
| } |
| } |
| outText.partialStartOffset = partialStartOffset; |
| outText.partialEndOffset = partialEndOffset - delta; |
| |
| if (partialStartOffset > N) { |
| partialStartOffset = N; |
| } else if (partialStartOffset < 0) { |
| partialStartOffset = 0; |
| } |
| if (partialEndOffset > N) { |
| partialEndOffset = N; |
| } else if (partialEndOffset < 0) { |
| partialEndOffset = 0; |
| } |
| } |
| if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { |
| outText.text = content.subSequence(partialStartOffset, |
| partialEndOffset); |
| } else { |
| outText.text = TextUtils.substring(content, partialStartOffset, |
| partialEndOffset); |
| } |
| } else { |
| outText.partialStartOffset = 0; |
| outText.partialEndOffset = 0; |
| outText.text = ""; |
| } |
| outText.flags = 0; |
| if (MetaKeyKeyListener.getMetaState(content, MetaKeyKeyListener.META_SELECTING) != 0) { |
| outText.flags |= ExtractedText.FLAG_SELECTING; |
| } |
| if (mTextView.isSingleLine()) { |
| outText.flags |= ExtractedText.FLAG_SINGLE_LINE; |
| } |
| outText.startOffset = 0; |
| outText.selectionStart = mTextView.getSelectionStart(); |
| outText.selectionEnd = mTextView.getSelectionEnd(); |
| return true; |
| } |
| return false; |
| } |
| |
| boolean reportExtractedText() { |
| final Editor.InputMethodState ims = mInputMethodState; |
| if (ims != null) { |
| final boolean contentChanged = ims.mContentChanged; |
| if (contentChanged || ims.mSelectionModeChanged) { |
| ims.mContentChanged = false; |
| ims.mSelectionModeChanged = false; |
| final ExtractedTextRequest req = ims.mExtractedTextRequest; |
| if (req != null) { |
| InputMethodManager imm = InputMethodManager.peekInstance(); |
| if (imm != null) { |
| if (TextView.DEBUG_EXTRACT) Log.v(TextView.LOG_TAG, |
| "Retrieving extracted start=" + ims.mChangedStart + |
| " end=" + ims.mChangedEnd + |
| " delta=" + ims.mChangedDelta); |
| if (ims.mChangedStart < 0 && !contentChanged) { |
| ims.mChangedStart = EXTRACT_NOTHING; |
| } |
| if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, |
| ims.mChangedDelta, ims.mExtractedText)) { |
| if (TextView.DEBUG_EXTRACT) Log.v(TextView.LOG_TAG, |
| "Reporting extracted start=" + |
| ims.mExtractedText.partialStartOffset + |
| " end=" + ims.mExtractedText.partialEndOffset + |
| ": " + ims.mExtractedText.text); |
| |
| imm.updateExtractedText(mTextView, req.token, ims.mExtractedText); |
| ims.mChangedStart = EXTRACT_UNKNOWN; |
| ims.mChangedEnd = EXTRACT_UNKNOWN; |
| ims.mChangedDelta = 0; |
| ims.mContentChanged = false; |
| return true; |
| } |
| } |
| } |
| } |
| } |
| return false; |
| } |
| |
| private void sendUpdateSelection() { |
| if (null != mInputMethodState && mInputMethodState.mBatchEditNesting <= 0) { |
| final InputMethodManager imm = InputMethodManager.peekInstance(); |
| if (null != imm) { |
| final int selectionStart = mTextView.getSelectionStart(); |
| final int selectionEnd = mTextView.getSelectionEnd(); |
| int candStart = -1; |
| int candEnd = -1; |
| if (mTextView.getText() instanceof Spannable) { |
| final Spannable sp = (Spannable) mTextView.getText(); |
| candStart = EditableInputConnection.getComposingSpanStart(sp); |
| candEnd = EditableInputConnection.getComposingSpanEnd(sp); |
| } |
| // InputMethodManager#updateSelection skips sending the message if |
| // none of the parameters have changed since the last time we called it. |
| imm.updateSelection(mTextView, |
| selectionStart, selectionEnd, candStart, candEnd); |
| } |
| } |
| } |
| |
| void onDraw(Canvas canvas, Layout layout, Path highlight, Paint highlightPaint, |
| int cursorOffsetVertical) { |
| final int selectionStart = mTextView.getSelectionStart(); |
| final int selectionEnd = mTextView.getSelectionEnd(); |
| |
| final InputMethodState ims = mInputMethodState; |
| if (ims != null && ims.mBatchEditNesting == 0) { |
| InputMethodManager imm = InputMethodManager.peekInstance(); |
| if (imm != null) { |
| if (imm.isActive(mTextView)) { |
| boolean reported = false; |
| if (ims.mContentChanged || ims.mSelectionModeChanged) { |
| // We are in extract mode and the content has changed |
| // in some way... just report complete new text to the |
| // input method. |
| reported = reportExtractedText(); |
| } |
| } |
| |
| if (imm.isWatchingCursor(mTextView) && highlight != null) { |
| highlight.computeBounds(ims.mTmpRectF, true); |
| ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; |
| |
| canvas.getMatrix().mapPoints(ims.mTmpOffset); |
| ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); |
| |
| ims.mTmpRectF.offset(0, cursorOffsetVertical); |
| |
| ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), |
| (int)(ims.mTmpRectF.top + 0.5), |
| (int)(ims.mTmpRectF.right + 0.5), |
| (int)(ims.mTmpRectF.bottom + 0.5)); |
| |
| imm.updateCursor(mTextView, |
| ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, |
| ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); |
| } |
| } |
| } |
| |
| if (mCorrectionHighlighter != null) { |
| mCorrectionHighlighter.draw(canvas, cursorOffsetVertical); |
| } |
| |
| if (highlight != null && selectionStart == selectionEnd && mCursorCount > 0) { |
| drawCursor(canvas, cursorOffsetVertical); |
| // Rely on the drawable entirely, do not draw the cursor line. |
| // Has to be done after the IMM related code above which relies on the highlight. |
| highlight = null; |
| } |
| |
| if (mTextView.canHaveDisplayList() && canvas.isHardwareAccelerated()) { |
| drawHardwareAccelerated(canvas, layout, highlight, highlightPaint, |
| cursorOffsetVertical); |
| } else { |
| layout.draw(canvas, highlight, highlightPaint, cursorOffsetVertical); |
| } |
| } |
| |
| private void drawHardwareAccelerated(Canvas canvas, Layout layout, Path highlight, |
| Paint highlightPaint, int cursorOffsetVertical) { |
| final long lineRange = layout.getLineRangeForDraw(canvas); |
| int firstLine = TextUtils.unpackRangeStartFromLong(lineRange); |
| int lastLine = TextUtils.unpackRangeEndFromLong(lineRange); |
| if (lastLine < 0) return; |
| |
| layout.drawBackground(canvas, highlight, highlightPaint, cursorOffsetVertical, |
| firstLine, lastLine); |
| |
| if (layout instanceof DynamicLayout) { |
| if (mTextDisplayLists == null) { |
| mTextDisplayLists = new DisplayList[ArrayUtils.idealObjectArraySize(0)]; |
| } |
| |
| DynamicLayout dynamicLayout = (DynamicLayout) layout; |
| int[] blockEndLines = dynamicLayout.getBlockEndLines(); |
| int[] blockIndices = dynamicLayout.getBlockIndices(); |
| final int numberOfBlocks = dynamicLayout.getNumberOfBlocks(); |
| final int indexFirstChangedBlock = dynamicLayout.getIndexFirstChangedBlock(); |
| |
| int endOfPreviousBlock = -1; |
| int searchStartIndex = 0; |
| for (int i = 0; i < numberOfBlocks; i++) { |
| int blockEndLine = blockEndLines[i]; |
| int blockIndex = blockIndices[i]; |
| |
| final boolean blockIsInvalid = blockIndex == DynamicLayout.INVALID_BLOCK_INDEX; |
| if (blockIsInvalid) { |
| blockIndex = getAvailableDisplayListIndex(blockIndices, numberOfBlocks, |
| searchStartIndex); |
| // Note how dynamic layout's internal block indices get updated from Editor |
| blockIndices[i] = blockIndex; |
| searchStartIndex = blockIndex + 1; |
| } |
| |
| DisplayList blockDisplayList = mTextDisplayLists[blockIndex]; |
| if (blockDisplayList == null) { |
| blockDisplayList = mTextDisplayLists[blockIndex] = |
| mTextView.getHardwareRenderer().createDisplayList("Text " + blockIndex); |
| } else { |
| if (blockIsInvalid) blockDisplayList.clear(); |
| } |
| |
| final boolean blockDisplayListIsInvalid = !blockDisplayList.isValid(); |
| if (i >= indexFirstChangedBlock || blockDisplayListIsInvalid) { |
| final int blockBeginLine = endOfPreviousBlock + 1; |
| final int top = layout.getLineTop(blockBeginLine); |
| final int bottom = layout.getLineBottom(blockEndLine); |
| int left = 0; |
| int right = mTextView.getWidth(); |
| if (mTextView.getHorizontallyScrolling()) { |
| float min = Float.MAX_VALUE; |
| float max = Float.MIN_VALUE; |
| for (int line = blockBeginLine; line <= blockEndLine; line++) { |
| min = Math.min(min, layout.getLineLeft(line)); |
| max = Math.max(max, layout.getLineRight(line)); |
| } |
| left = (int) min; |
| right = (int) (max + 0.5f); |
| } |
| |
| // Rebuild display list if it is invalid |
| if (blockDisplayListIsInvalid) { |
| final HardwareCanvas hardwareCanvas = blockDisplayList.start( |
| right - left, bottom - top); |
| try { |
| // drawText is always relative to TextView's origin, this translation |
| // brings this range of text back to the top left corner of the viewport |
| hardwareCanvas.translate(-left, -top); |
| layout.drawText(hardwareCanvas, blockBeginLine, blockEndLine); |
| // No need to untranslate, previous context is popped after |
| // drawDisplayList |
| } finally { |
| blockDisplayList.end(); |
| // Same as drawDisplayList below, handled by our TextView's parent |
| blockDisplayList.setClipToBounds(false); |
| } |
| } |
| |
| // Valid disply list whose index is >= indexFirstChangedBlock |
| // only needs to update its drawing location. |
| blockDisplayList.setLeftTopRightBottom(left, top, right, bottom); |
| } |
| |
| ((HardwareCanvas) canvas).drawDisplayList(blockDisplayList, null, |
| 0 /* no child clipping, our TextView parent enforces it */); |
| |
| endOfPreviousBlock = blockEndLine; |
| } |
| |
| dynamicLayout.setIndexFirstChangedBlock(numberOfBlocks); |
| } else { |
| // Boring layout is used for empty and hint text |
| layout.drawText(canvas, firstLine, lastLine); |
| } |
| } |
| |
| private int getAvailableDisplayListIndex(int[] blockIndices, int numberOfBlocks, |
| int searchStartIndex) { |
| int length = mTextDisplayLists.length; |
| for (int i = searchStartIndex; i < length; i++) { |
| boolean blockIndexFound = false; |
| for (int j = 0; j < numberOfBlocks; j++) { |
| if (blockIndices[j] == i) { |
| blockIndexFound = true; |
| break; |
| } |
| } |
| if (blockIndexFound) continue; |
| return i; |
| } |
| |
| // No available index found, the pool has to grow |
| int newSize = ArrayUtils.idealIntArraySize(length + 1); |
| DisplayList[] displayLists = new DisplayList[newSize]; |
| System.arraycopy(mTextDisplayLists, 0, displayLists, 0, length); |
| mTextDisplayLists = displayLists; |
| return length; |
| } |
| |
| private void drawCursor(Canvas canvas, int cursorOffsetVertical) { |
| final boolean translate = cursorOffsetVertical != 0; |
| if (translate) canvas.translate(0, cursorOffsetVertical); |
| for (int i = 0; i < mCursorCount; i++) { |
| mCursorDrawable[i].draw(canvas); |
| } |
| if (translate) canvas.translate(0, -cursorOffsetVertical); |
| } |
| |
| /** |
| * Invalidates all the sub-display lists that overlap the specified character range |
| */ |
| void invalidateTextDisplayList(Layout layout, int start, int end) { |
| if (mTextDisplayLists != null && layout instanceof DynamicLayout) { |
| final int firstLine = layout.getLineForOffset(start); |
| final int lastLine = layout.getLineForOffset(end); |
| |
| DynamicLayout dynamicLayout = (DynamicLayout) layout; |
| int[] blockEndLines = dynamicLayout.getBlockEndLines(); |
| int[] blockIndices = dynamicLayout.getBlockIndices(); |
| final int numberOfBlocks = dynamicLayout.getNumberOfBlocks(); |
| |
| int i = 0; |
| // Skip the blocks before firstLine |
| while (i < numberOfBlocks) { |
| if (blockEndLines[i] >= firstLine) break; |
| i++; |
| } |
| |
| // Invalidate all subsequent blocks until lastLine is passed |
| while (i < numberOfBlocks) { |
| final int blockIndex = blockIndices[i]; |
| if (blockIndex != DynamicLayout.INVALID_BLOCK_INDEX) { |
| mTextDisplayLists[blockIndex].clear(); |
| } |
| if (blockEndLines[i] >= lastLine) break; |
| i++; |
| } |
| } |
| } |
| |
| void invalidateTextDisplayList() { |
| if (mTextDisplayLists != null) { |
| for (int i = 0; i < mTextDisplayLists.length; i++) { |
| if (mTextDisplayLists[i] != null) mTextDisplayLists[i].clear(); |
| } |
| } |
| } |
| |
| void updateCursorsPositions() { |
| if (mTextView.mCursorDrawableRes == 0) { |
| mCursorCount = 0; |
| return; |
| } |
| |
| Layout layout = mTextView.getLayout(); |
| Layout hintLayout = mTextView.getHintLayout(); |
| final int offset = mTextView.getSelectionStart(); |
| final int line = layout.getLineForOffset(offset); |
| final int top = layout.getLineTop(line); |
| final int bottom = layout.getLineTop(line + 1); |
| |
| mCursorCount = layout.isLevelBoundary(offset) ? 2 : 1; |
| |
| int middle = bottom; |
| if (mCursorCount == 2) { |
| // Similar to what is done in {@link Layout.#getCursorPath(int, Path, CharSequence)} |
| middle = (top + bottom) >> 1; |
| } |
| |
| boolean clamped = layout.shouldClampCursor(line); |
| updateCursorPosition(0, top, middle, |
| getPrimaryHorizontal(layout, hintLayout, offset, clamped)); |
| |
| if (mCursorCount == 2) { |
| updateCursorPosition(1, middle, bottom, |
| layout.getSecondaryHorizontal(offset, clamped)); |
| } |
| } |
| |
| private float getPrimaryHorizontal(Layout layout, Layout hintLayout, int offset, |
| boolean clamped) { |
| if (TextUtils.isEmpty(layout.getText()) && |
| hintLayout != null && |
| !TextUtils.isEmpty(hintLayout.getText())) { |
| return hintLayout.getPrimaryHorizontal(offset, clamped); |
| } else { |
| return layout.getPrimaryHorizontal(offset, clamped); |
| } |
| } |
| |
| /** |
| * @return true if the selection mode was actually started. |
| */ |
| boolean startSelectionActionMode() { |
| if (mSelectionActionMode != null) { |
| // Selection action mode is already started |
| return false; |
| } |
| |
| if (!canSelectText() || !mTextView.requestFocus()) { |
| Log.w(TextView.LOG_TAG, |
| "TextView does not support text selection. Action mode cancelled."); |
| return false; |
| } |
| |
| if (!mTextView.hasSelection()) { |
| // There may already be a selection on device rotation |
| if (!selectCurrentWord()) { |
| // No word found under cursor or text selection not permitted. |
| return false; |
| } |
| } |
| |
| boolean willExtract = extractedTextModeWillBeStarted(); |
| |
| // Do not start the action mode when extracted text will show up full screen, which would |
| // immediately hide the newly created action bar and would be visually distracting. |
| if (!willExtract) { |
| ActionMode.Callback actionModeCallback = new SelectionActionModeCallback(); |
| mSelectionActionMode = mTextView.startActionMode(actionModeCallback); |
| } |
| |
| final boolean selectionStarted = mSelectionActionMode != null || willExtract; |
| if (selectionStarted && !mTextView.isTextSelectable() && mShowSoftInputOnFocus) { |
| // Show the IME to be able to replace text, except when selecting non editable text. |
| final InputMethodManager imm = InputMethodManager.peekInstance(); |
| if (imm != null) { |
| imm.showSoftInput(mTextView, 0, null); |
| } |
| } |
| |
| return selectionStarted; |
| } |
| |
| private boolean extractedTextModeWillBeStarted() { |
| if (!(mTextView instanceof ExtractEditText)) { |
| final InputMethodManager imm = InputMethodManager.peekInstance(); |
| return imm != null && imm.isFullscreenMode(); |
| } |
| return false; |
| } |
| |
| /** |
| * @return <code>true</code> if the cursor/current selection overlaps a {@link SuggestionSpan}. |
| */ |
| private boolean isCursorInsideSuggestionSpan() { |
| CharSequence text = mTextView.getText(); |
| if (!(text instanceof Spannable)) return false; |
| |
| SuggestionSpan[] suggestionSpans = ((Spannable) text).getSpans( |
| mTextView.getSelectionStart(), mTextView.getSelectionEnd(), SuggestionSpan.class); |
| return (suggestionSpans.length > 0); |
| } |
| |
| /** |
| * @return <code>true</code> if the cursor is inside an {@link SuggestionSpan} with |
| * {@link SuggestionSpan#FLAG_EASY_CORRECT} set. |
| */ |
| private boolean isCursorInsideEasyCorrectionSpan() { |
| Spannable spannable = (Spannable) mTextView.getText(); |
| SuggestionSpan[] suggestionSpans = spannable.getSpans(mTextView.getSelectionStart(), |
| mTextView.getSelectionEnd(), SuggestionSpan.class); |
| for (int i = 0; i < suggestionSpans.length; i++) { |
| if ((suggestionSpans[i].getFlags() & SuggestionSpan.FLAG_EASY_CORRECT) != 0) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| void onTouchUpEvent(MotionEvent event) { |
| boolean selectAllGotFocus = mSelectAllOnFocus && mTextView.didTouchFocusSelect(); |
| hideControllers(); |
| CharSequence text = mTextView.getText(); |
| if (!selectAllGotFocus && text.length() > 0) { |
| // Move cursor |
| final int offset = mTextView.getOffsetForPosition(event.getX(), event.getY()); |
| Selection.setSelection((Spannable) text, offset); |
| if (mSpellChecker != null) { |
| // When the cursor moves, the word that was typed may need spell check |
| mSpellChecker.onSelectionChanged(); |
| } |
| if (!extractedTextModeWillBeStarted()) { |
| if (isCursorInsideEasyCorrectionSpan()) { |
| mShowSuggestionRunnable = new Runnable() { |
| public void run() { |
| showSuggestions(); |
| } |
| }; |
| // removeCallbacks is performed on every touch |
| mTextView.postDelayed(mShowSuggestionRunnable, |
| ViewConfiguration.getDoubleTapTimeout()); |
| } else if (hasInsertionController()) { |
| getInsertionController().show(); |
| } |
| } |
| } |
| } |
| |
| protected void stopSelectionActionMode() { |
| if (mSelectionActionMode != null) { |
| // This will hide the mSelectionModifierCursorController |
| mSelectionActionMode.finish(); |
| } |
| } |
| |
| /** |
| * @return True if this view supports insertion handles. |
| */ |
| boolean hasInsertionController() { |
| return mInsertionControllerEnabled; |
| } |
| |
| /** |
| * @return True if this view supports selection handles. |
| */ |
| boolean hasSelectionController() { |
| return mSelectionControllerEnabled; |
| } |
| |
| InsertionPointCursorController getInsertionController() { |
| if (!mInsertionControllerEnabled) { |
| return null; |
| } |
| |
| if (mInsertionPointCursorController == null) { |
| mInsertionPointCursorController = new InsertionPointCursorController(); |
| |
| final ViewTreeObserver observer = mTextView.getViewTreeObserver(); |
| observer.addOnTouchModeChangeListener(mInsertionPointCursorController); |
| } |
| |
| return mInsertionPointCursorController; |
| } |
| |
| SelectionModifierCursorController getSelectionController() { |
| if (!mSelectionControllerEnabled) { |
| return null; |
| } |
| |
| if (mSelectionModifierCursorController == null) { |
| mSelectionModifierCursorController = new SelectionModifierCursorController(); |
| |
| final ViewTreeObserver observer = mTextView.getViewTreeObserver(); |
| observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); |
| } |
| |
| return mSelectionModifierCursorController; |
| } |
| |
| private void updateCursorPosition(int cursorIndex, int top, int bottom, float horizontal) { |
| if (mCursorDrawable[cursorIndex] == null) |
| mCursorDrawable[cursorIndex] = mTextView.getResources().getDrawable( |
| mTextView.mCursorDrawableRes); |
| |
| if (mTempRect == null) mTempRect = new Rect(); |
| mCursorDrawable[cursorIndex].getPadding(mTempRect); |
| final int width = mCursorDrawable[cursorIndex].getIntrinsicWidth(); |
| horizontal = Math.max(0.5f, horizontal - 0.5f); |
| final int left = (int) (horizontal) - mTempRect.left; |
| mCursorDrawable[cursorIndex].setBounds(left, top - mTempRect.top, left + width, |
| bottom + mTempRect.bottom); |
| } |
| |
| /** |
| * Called by the framework in response to a text auto-correction (such as fixing a typo using a |
| * a dictionnary) from the current input method, provided by it calling |
| * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default |
| * implementation flashes the background of the corrected word to provide feedback to the user. |
| * |
| * @param info The auto correct info about the text that was corrected. |
| */ |
| public void onCommitCorrection(CorrectionInfo info) { |
| if (mCorrectionHighlighter == null) { |
| mCorrectionHighlighter = new CorrectionHighlighter(); |
| } else { |
| mCorrectionHighlighter.invalidate(false); |
| } |
| |
| mCorrectionHighlighter.highlight(info); |
| } |
| |
| void showSuggestions() { |
| if (mSuggestionsPopupWindow == null) { |
| mSuggestionsPopupWindow = new SuggestionsPopupWindow(); |
| } |
| hideControllers(); |
| mSuggestionsPopupWindow.show(); |
| } |
| |
| boolean areSuggestionsShown() { |
| return mSuggestionsPopupWindow != null && mSuggestionsPopupWindow.isShowing(); |
| } |
| |
| void onScrollChanged() { |
| if (mPositionListener != null) { |
| mPositionListener.onScrollChanged(); |
| } |
| } |
| |
| /** |
| * @return True when the TextView isFocused and has a valid zero-length selection (cursor). |
| */ |
| private boolean shouldBlink() { |
| if (!isCursorVisible() || !mTextView.isFocused()) return false; |
| |
| final int start = mTextView.getSelectionStart(); |
| if (start < 0) return false; |
| |
| final int end = mTextView.getSelectionEnd(); |
| if (end < 0) return false; |
| |
| return start == end; |
| } |
| |
| void makeBlink() { |
| if (shouldBlink()) { |
| mShowCursor = SystemClock.uptimeMillis(); |
| if (mBlink == null) mBlink = new Blink(); |
| mBlink.removeCallbacks(mBlink); |
| mBlink.postAtTime(mBlink, mShowCursor + BLINK); |
| } else { |
| if (mBlink != null) mBlink.removeCallbacks(mBlink); |
| } |
| } |
| |
| private class Blink extends Handler implements Runnable { |
| private boolean mCancelled; |
| |
| public void run() { |
| if (mCancelled) { |
| return; |
| } |
| |
| removeCallbacks(Blink.this); |
| |
| if (shouldBlink()) { |
| if (mTextView.getLayout() != null) { |
| mTextView.invalidateCursorPath(); |
| } |
| |
| postAtTime(this, SystemClock.uptimeMillis() + BLINK); |
| } |
| } |
| |
| void cancel() { |
| if (!mCancelled) { |
| removeCallbacks(Blink.this); |
| mCancelled = true; |
| } |
| } |
| |
| void uncancel() { |
| mCancelled = false; |
| } |
| } |
| |
| private DragShadowBuilder getTextThumbnailBuilder(CharSequence text) { |
| TextView shadowView = (TextView) View.inflate(mTextView.getContext(), |
| com.android.internal.R.layout.text_drag_thumbnail, null); |
| |
| if (shadowView == null) { |
| throw new IllegalArgumentException("Unable to inflate text drag thumbnail"); |
| } |
| |
| if (text.length() > DRAG_SHADOW_MAX_TEXT_LENGTH) { |
| text = text.subSequence(0, DRAG_SHADOW_MAX_TEXT_LENGTH); |
| } |
| shadowView.setText(text); |
| shadowView.setTextColor(mTextView.getTextColors()); |
| |
| shadowView.setTextAppearance(mTextView.getContext(), R.styleable.Theme_textAppearanceLarge); |
| shadowView.setGravity(Gravity.CENTER); |
| |
| shadowView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, |
| ViewGroup.LayoutParams.WRAP_CONTENT)); |
| |
| final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); |
| shadowView.measure(size, size); |
| |
| shadowView.layout(0, 0, shadowView.getMeasuredWidth(), shadowView.getMeasuredHeight()); |
| shadowView.invalidate(); |
| return new DragShadowBuilder(shadowView); |
| } |
| |
| private static class DragLocalState { |
| public TextView sourceTextView; |
| public int start, end; |
| |
| public DragLocalState(TextView sourceTextView, int start, int end) { |
| this.sourceTextView = sourceTextView; |
| this.start = start; |
| this.end = end; |
| } |
| } |
| |
| void onDrop(DragEvent event) { |
| StringBuilder content = new StringBuilder(""); |
| ClipData clipData = event.getClipData(); |
| final int itemCount = clipData.getItemCount(); |
| for (int i=0; i < itemCount; i++) { |
| Item item = clipData.getItemAt(i); |
| content.append(item.coerceToStyledText(mTextView.getContext())); |
| } |
| |
| final int offset = mTextView.getOffsetForPosition(event.getX(), event.getY()); |
| |
| Object localState = event.getLocalState(); |
| DragLocalState dragLocalState = null; |
| if (localState instanceof DragLocalState) { |
| dragLocalState = (DragLocalState) localState; |
| } |
| boolean dragDropIntoItself = dragLocalState != null && |
| dragLocalState.sourceTextView == mTextView; |
| |
| if (dragDropIntoItself) { |
| if (offset >= dragLocalState.start && offset < dragLocalState.end) { |
| // A drop inside the original selection discards the drop. |
| return; |
| } |
| } |
| |
| final int originalLength = mTextView.getText().length(); |
| long minMax = mTextView.prepareSpacesAroundPaste(offset, offset, content); |
| int min = TextUtils.unpackRangeStartFromLong(minMax); |
| int max = TextUtils.unpackRangeEndFromLong(minMax); |
| |
| Selection.setSelection((Spannable) mTextView.getText(), max); |
| mTextView.replaceText_internal(min, max, content); |
| |
| if (dragDropIntoItself) { |
| int dragSourceStart = dragLocalState.start; |
| int dragSourceEnd = dragLocalState.end; |
| if (max <= dragSourceStart) { |
| // Inserting text before selection has shifted positions |
| final int shift = mTextView.getText().length() - originalLength; |
| dragSourceStart += shift; |
| dragSourceEnd += shift; |
| } |
| |
| // Delete original selection |
| mTextView.deleteText_internal(dragSourceStart, dragSourceEnd); |
| |
| // Make sure we do not leave two adjacent spaces. |
| final int prevCharIdx = Math.max(0, dragSourceStart - 1); |
| final int nextCharIdx = Math.min(mTextView.getText().length(), dragSourceStart + 1); |
| if (nextCharIdx > prevCharIdx + 1) { |
| CharSequence t = mTextView.getTransformedText(prevCharIdx, nextCharIdx); |
| if (Character.isSpaceChar(t.charAt(0)) && Character.isSpaceChar(t.charAt(1))) { |
| mTextView.deleteText_internal(prevCharIdx, prevCharIdx + 1); |
| } |
| } |
| } |
| } |
| |
| public void addSpanWatchers(Spannable text) { |
| final int textLength = text.length(); |
| |
| if (mKeyListener != null) { |
| text.setSpan(mKeyListener, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); |
| } |
| |
| if (mSpanController == null) { |
| mSpanController = new SpanController(); |
| } |
| text.setSpan(mSpanController, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); |
| } |
| |
| /** |
| * Controls the {@link EasyEditSpan} monitoring when it is added, and when the related |
| * pop-up should be displayed. |
| * Also monitors {@link SelectionSpan} to call back to the attached input method. |
| */ |
| class SpanController implements SpanWatcher { |
| |
| private static final int DISPLAY_TIMEOUT_MS = 3000; // 3 secs |
| |
| private EasyEditPopupWindow mPopupWindow; |
| |
| private Runnable mHidePopup; |
| |
| // This function is pure but inner classes can't have static functions |
| private boolean isNonIntermediateSelectionSpan(final Spannable text, |
| final Object span) { |
| return (Selection.SELECTION_START == span || Selection.SELECTION_END == span) |
| && (text.getSpanFlags(span) & Spanned.SPAN_INTERMEDIATE) == 0; |
| } |
| |
| @Override |
| public void onSpanAdded(Spannable text, Object span, int start, int end) { |
| if (isNonIntermediateSelectionSpan(text, span)) { |
| sendUpdateSelection(); |
| } else if (span instanceof EasyEditSpan) { |
| if (mPopupWindow == null) { |
| mPopupWindow = new EasyEditPopupWindow(); |
| mHidePopup = new Runnable() { |
| @Override |
| public void run() { |
| hide(); |
| } |
| }; |
| } |
| |
| // Make sure there is only at most one EasyEditSpan in the text |
| if (mPopupWindow.mEasyEditSpan != null) { |
| mPopupWindow.mEasyEditSpan.setDeleteEnabled(false); |
| } |
| |
| mPopupWindow.setEasyEditSpan((EasyEditSpan) span); |
| mPopupWindow.setOnDeleteListener(new EasyEditDeleteListener() { |
| @Override |
| public void onDeleteClick(EasyEditSpan span) { |
| Editable editable = (Editable) mTextView.getText(); |
| int start = editable.getSpanStart(span); |
| int end = editable.getSpanEnd(span); |
| if (start >= 0 && end >= 0) { |
| sendEasySpanNotification(EasyEditSpan.TEXT_DELETED, span); |
| mTextView.deleteText_internal(start, end); |
| } |
| editable.removeSpan(span); |
| } |
| }); |
| |
| if (mTextView.getWindowVisibility() != View.VISIBLE) { |
| // The window is not visible yet, ignore the text change. |
| return; |
| } |
| |
| if (mTextView.getLayout() == null) { |
| // The view has not been laid out yet, ignore the text change |
| return; |
| } |
| |
| if (extractedTextModeWillBeStarted()) { |
| // The input is in extract mode. Do not handle the easy edit in |
| // the original TextView, as the ExtractEditText will do |
| return; |
| } |
| |
| mPopupWindow.show(); |
| mTextView.removeCallbacks(mHidePopup); |
| mTextView.postDelayed(mHidePopup, DISPLAY_TIMEOUT_MS); |
| } |
| } |
| |
| @Override |
| public void onSpanRemoved(Spannable text, Object span, int start, int end) { |
| if (isNonIntermediateSelectionSpan(text, span)) { |
| sendUpdateSelection(); |
| } else if (mPopupWindow != null && span == mPopupWindow.mEasyEditSpan) { |
| hide(); |
| } |
| } |
| |
| @Override |
| public void onSpanChanged(Spannable text, Object span, int previousStart, int previousEnd, |
| int newStart, int newEnd) { |
| if (isNonIntermediateSelectionSpan(text, span)) { |
| sendUpdateSelection(); |
| } else if (mPopupWindow != null && span instanceof EasyEditSpan) { |
| EasyEditSpan easyEditSpan = (EasyEditSpan) span; |
| sendEasySpanNotification(EasyEditSpan.TEXT_MODIFIED, easyEditSpan); |
| text.removeSpan(easyEditSpan); |
| } |
| } |
| |
| public void hide() { |
| if (mPopupWindow != null) { |
| mPopupWindow.hide(); |
| mTextView.removeCallbacks(mHidePopup); |
| } |
| } |
| |
| private void sendEasySpanNotification(int textChangedType, EasyEditSpan span) { |
| try { |
| PendingIntent pendingIntent = span.getPendingIntent(); |
| if (pendingIntent != null) { |
| Intent intent = new Intent(); |
| intent.putExtra(EasyEditSpan.EXTRA_TEXT_CHANGED_TYPE, textChangedType); |
| pendingIntent.send(mTextView.getContext(), 0, intent); |
| } |
| } catch (CanceledException e) { |
| // This should not happen, as we should try to send the intent only once. |
| Log.w(TAG, "PendingIntent for notification cannot be sent", e); |
| } |
| } |
| } |
| |
| /** |
| * Listens for the delete event triggered by {@link EasyEditPopupWindow}. |
| */ |
| private interface EasyEditDeleteListener { |
| |
| /** |
| * Clicks the delete pop-up. |
| */ |
| void onDeleteClick(EasyEditSpan span); |
| } |
| |
| /** |
| * Displays the actions associated to an {@link EasyEditSpan}. The pop-up is controlled |
| * by {@link EasyEditSpanController}. |
| */ |
| private class EasyEditPopupWindow extends PinnedPopupWindow |
| implements OnClickListener { |
| private static final int POPUP_TEXT_LAYOUT = |
| com.android.internal.R.layout.text_edit_action_popup_text; |
| private TextView mDeleteTextView; |
| private EasyEditSpan mEasyEditSpan; |
| private EasyEditDeleteListener mOnDeleteListener; |
| |
| @Override |
| protected void createPopupWindow() { |
| mPopupWindow = new PopupWindow(mTextView.getContext(), null, |
| com.android.internal.R.attr.textSelectHandleWindowStyle); |
| mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); |
| mPopupWindow.setClippingEnabled(true); |
| } |
| |
| @Override |
| protected void initContentView() { |
| LinearLayout linearLayout = new LinearLayout(mTextView.getContext()); |
| linearLayout.setOrientation(LinearLayout.HORIZONTAL); |
| mContentView = linearLayout; |
| mContentView.setBackgroundResource( |
| com.android.internal.R.drawable.text_edit_side_paste_window); |
| |
| LayoutInflater inflater = (LayoutInflater)mTextView.getContext(). |
| getSystemService(Context.LAYOUT_INFLATER_SERVICE); |
| |
| LayoutParams wrapContent = new LayoutParams( |
| ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); |
| |
| mDeleteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); |
| mDeleteTextView.setLayoutParams(wrapContent); |
| mDeleteTextView.setText(com.android.internal.R.string.delete); |
| mDeleteTextView.setOnClickListener(this); |
| mContentView.addView(mDeleteTextView); |
| } |
| |
| public void setEasyEditSpan(EasyEditSpan easyEditSpan) { |
| mEasyEditSpan = easyEditSpan; |
| } |
| |
| private void setOnDeleteListener(EasyEditDeleteListener listener) { |
| mOnDeleteListener = listener; |
| } |
| |
| @Override |
| public void onClick(View view) { |
| if (view == mDeleteTextView |
| && mEasyEditSpan != null && mEasyEditSpan.isDeleteEnabled() |
| && mOnDeleteListener != null) { |
| mOnDeleteListener.onDeleteClick(mEasyEditSpan); |
| } |
| } |
| |
| @Override |
| public void hide() { |
| if (mEasyEditSpan != null) { |
| mEasyEditSpan.setDeleteEnabled(false); |
| } |
| mOnDeleteListener = null; |
| super.hide(); |
| } |
| |
| @Override |
| protected int getTextOffset() { |
| // Place the pop-up at the end of the span |
| Editable editable = (Editable) mTextView.getText(); |
| return editable.getSpanEnd(mEasyEditSpan); |
| } |
| |
| @Override |
| protected int getVerticalLocalPosition(int line) { |
| return mTextView.getLayout().getLineBottom(line); |
| } |
| |
| @Override |
| protected int clipVertically(int positionY) { |
| // As we display the pop-up below the span, no vertical clipping is required. |
| return positionY; |
| } |
| } |
| |
| private class PositionListener implements ViewTreeObserver.OnPreDrawListener { |
| // 3 handles |
| // 3 ActionPopup [replace, suggestion, easyedit] (suggestionsPopup first hides the others) |
| private final int MAXIMUM_NUMBER_OF_LISTENERS = 6; |
| private TextViewPositionListener[] mPositionListeners = |
| new TextViewPositionListener[MAXIMUM_NUMBER_OF_LISTENERS]; |
| private boolean mCanMove[] = new boolean[MAXIMUM_NUMBER_OF_LISTENERS]; |
| private boolean mPositionHasChanged = true; |
| // Absolute position of the TextView with respect to its parent window |
| private int mPositionX, mPositionY; |
| private int mNumberOfListeners; |
| private boolean mScrollHasChanged; |
| final int[] mTempCoords = new int[2]; |
| |
| public void addSubscriber(TextViewPositionListener positionListener, boolean canMove) { |
| if (mNumberOfListeners == 0) { |
| updatePosition(); |
| ViewTreeObserver vto = mTextView.getViewTreeObserver(); |
| vto.addOnPreDrawListener(this); |
| } |
| |
| int emptySlotIndex = -1; |
| for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { |
| TextViewPositionListener listener = mPositionListeners[i]; |
| if (listener == positionListener) { |
| return; |
| } else if (emptySlotIndex < 0 && listener == null) { |
| emptySlotIndex = i; |
| } |
| } |
| |
| mPositionListeners[emptySlotIndex] = positionListener; |
| mCanMove[emptySlotIndex] = canMove; |
| mNumberOfListeners++; |
| } |
| |
| public void removeSubscriber(TextViewPositionListener positionListener) { |
| for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { |
| if (mPositionListeners[i] == positionListener) { |
| mPositionListeners[i] = null; |
| mNumberOfListeners--; |
| break; |
| } |
| } |
| |
| if (mNumberOfListeners == 0) { |
| ViewTreeObserver vto = mTextView.getViewTreeObserver(); |
| vto.removeOnPreDrawListener(this); |
| } |
| } |
| |
| public int getPositionX() { |
| return mPositionX; |
| } |
| |
| public int getPositionY() { |
| return mPositionY; |
| } |
| |
| @Override |
| public boolean onPreDraw() { |
| updatePosition(); |
| |
| for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { |
| if (mPositionHasChanged || mScrollHasChanged || mCanMove[i]) { |
| TextViewPositionListener positionListener = mPositionListeners[i]; |
| if (positionListener != null) { |
| positionListener.updatePosition(mPositionX, mPositionY, |
| mPositionHasChanged, mScrollHasChanged); |
| } |
| } |
| } |
| |
| mScrollHasChanged = false; |
| return true; |
| } |
| |
| private void updatePosition() { |
| mTextView.getLocationInWindow(mTempCoords); |
| |
| mPositionHasChanged = mTempCoords[0] != mPositionX || mTempCoords[1] != mPositionY; |
| |
| mPositionX = mTempCoords[0]; |
| mPositionY = mTempCoords[1]; |
| } |
| |
| public void onScrollChanged() { |
| mScrollHasChanged = true; |
| } |
| } |
| |
| private abstract class PinnedPopupWindow implements TextViewPositionListener { |
| protected PopupWindow mPopupWindow; |
| protected ViewGroup mContentView; |
| int mPositionX, mPositionY; |
| |
| protected abstract void createPopupWindow(); |
| protected abstract void initContentView(); |
| protected abstract int getTextOffset(); |
| protected abstract int getVerticalLocalPosition(int line); |
| protected abstract int clipVertically(int positionY); |
| |
| public PinnedPopupWindow() { |
| createPopupWindow(); |
| |
| mPopupWindow.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); |
| mPopupWindow.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); |
| mPopupWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); |
| |
| initContentView(); |
| |
| LayoutParams wrapContent = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, |
| ViewGroup.LayoutParams.WRAP_CONTENT); |
| mContentView.setLayoutParams(wrapContent); |
| |
| mPopupWindow.setContentView(mContentView); |
| } |
| |
| public void show() { |
| getPositionListener().addSubscriber(this, false /* offset is fixed */); |
| |
| computeLocalPosition(); |
| |
| final PositionListener positionListener = getPositionListener(); |
| updatePosition(positionListener.getPositionX(), positionListener.getPositionY()); |
| } |
| |
| protected void measureContent() { |
| final DisplayMetrics displayMetrics = mTextView.getResources().getDisplayMetrics(); |
| mContentView.measure( |
| View.MeasureSpec.makeMeasureSpec(displayMetrics.widthPixels, |
| View.MeasureSpec.AT_MOST), |
| View.MeasureSpec.makeMeasureSpec(displayMetrics.heightPixels, |
| View.MeasureSpec.AT_MOST)); |
| } |
| |
| /* The popup window will be horizontally centered on the getTextOffset() and vertically |
| * positioned according to viewportToContentHorizontalOffset. |
| * |
| * This method assumes that mContentView has properly been measured from its content. */ |
| private void computeLocalPosition() { |
| measureContent(); |
| final int width = mContentView.getMeasuredWidth(); |
| final int offset = getTextOffset(); |
| mPositionX = (int) (mTextView.getLayout().getPrimaryHorizontal(offset) - width / 2.0f); |
| mPositionX += mTextView.viewportToContentHorizontalOffset(); |
| |
| final int line = mTextView.getLayout().getLineForOffset(offset); |
| mPositionY = getVerticalLocalPosition(line); |
| mPositionY += mTextView.viewportToContentVerticalOffset(); |
| } |
| |
| private void updatePosition(int parentPositionX, int parentPositionY) { |
| int positionX = parentPositionX + mPositionX; |
| int positionY = parentPositionY + mPositionY; |
| |
| positionY = clipVertically(positionY); |
| |
| // Horizontal clipping |
| final DisplayMetrics displayMetrics = mTextView.getResources().getDisplayMetrics(); |
| final int width = mContentView.getMeasuredWidth(); |
| positionX = Math.min(displayMetrics.widthPixels - width, positionX); |
| positionX = Math.max(0, positionX); |
| |
| if (isShowing()) { |
| mPopupWindow.update(positionX, positionY, -1, -1); |
| } else { |
| mPopupWindow.showAtLocation(mTextView, Gravity.NO_GRAVITY, |
| positionX, positionY); |
| } |
| } |
| |
| public void hide() { |
| mPopupWindow.dismiss(); |
| getPositionListener().removeSubscriber(this); |
| } |
| |
| @Override |
| public void updatePosition(int parentPositionX, int parentPositionY, |
| boolean parentPositionChanged, boolean parentScrolled) { |
| // Either parentPositionChanged or parentScrolled is true, check if still visible |
| if (isShowing() && isOffsetVisible(getTextOffset())) { |
| if (parentScrolled) computeLocalPosition(); |
| updatePosition(parentPositionX, parentPositionY); |
| } else { |
| hide(); |
| } |
| } |
| |
| public boolean isShowing() { |
| return mPopupWindow.isShowing(); |
| } |
| } |
| |
| private class SuggestionsPopupWindow extends PinnedPopupWindow implements OnItemClickListener { |
| private static final int MAX_NUMBER_SUGGESTIONS = SuggestionSpan.SUGGESTIONS_MAX_SIZE; |
| private static final int ADD_TO_DICTIONARY = -1; |
| private static final int DELETE_TEXT = -2; |
| private SuggestionInfo[] mSuggestionInfos; |
| private int mNumberOfSuggestions; |
| private boolean mCursorWasVisibleBeforeSuggestions; |
| private boolean mIsShowingUp = false; |
| private SuggestionAdapter mSuggestionsAdapter; |
| private final Comparator<SuggestionSpan> mSuggestionSpanComparator; |
| private final HashMap<SuggestionSpan, Integer> mSpansLengths; |
| |
| private class CustomPopupWindow extends PopupWindow { |
| public CustomPopupWindow(Context context, int defStyle) { |
| super(context, null, defStyle); |
| } |
| |
| @Override |
| public void dismiss() { |
| super.dismiss(); |
| |
| getPositionListener().removeSubscriber(SuggestionsPopupWindow.this); |
| |
| // Safe cast since show() checks that mTextView.getText() is an Editable |
| ((Spannable) mTextView.getText()).removeSpan(mSuggestionRangeSpan); |
| |
| mTextView.setCursorVisible(mCursorWasVisibleBeforeSuggestions); |
| if (hasInsertionController()) { |
| getInsertionController().show(); |
| } |
| } |
| } |
| |
| public SuggestionsPopupWindow() { |
| mCursorWasVisibleBeforeSuggestions = mCursorVisible; |
| mSuggestionSpanComparator = new SuggestionSpanComparator(); |
| mSpansLengths = new HashMap<SuggestionSpan, Integer>(); |
| } |
| |
| @Override |
| protected void createPopupWindow() { |
| mPopupWindow = new CustomPopupWindow(mTextView.getContext(), |
| com.android.internal.R.attr.textSuggestionsWindowStyle); |
| mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); |
| mPopupWindow.setFocusable(true); |
| mPopupWindow.setClippingEnabled(false); |
| } |
| |
| @Override |
| protected void initContentView() { |
| ListView listView = new ListView(mTextView.getContext()); |
| mSuggestionsAdapter = new SuggestionAdapter(); |
| listView.setAdapter(mSuggestionsAdapter); |
| listView.setOnItemClickListener(this); |
| mContentView = listView; |
| |
| // Inflate the suggestion items once and for all. + 2 for add to dictionary and delete |
| mSuggestionInfos = new SuggestionInfo[MAX_NUMBER_SUGGESTIONS + 2]; |
| for (int i = 0; i < mSuggestionInfos.length; i++) { |
| mSuggestionInfos[i] = new SuggestionInfo(); |
| } |
| } |
| |
| public boolean isShowingUp() { |
| return mIsShowingUp; |
| } |
| |
| public void onParentLostFocus() { |
| mIsShowingUp = false; |
| } |
| |
| private class SuggestionInfo { |
| int suggestionStart, suggestionEnd; // range of actual suggestion within text |
| SuggestionSpan suggestionSpan; // the SuggestionSpan that this TextView represents |
| int suggestionIndex; // the index of this suggestion inside suggestionSpan |
| SpannableStringBuilder text = new SpannableStringBuilder(); |
| TextAppearanceSpan highlightSpan = new TextAppearanceSpan(mTextView.getContext(), |
| android.R.style.TextAppearance_SuggestionHighlight); |
| } |
| |
| private class SuggestionAdapter extends BaseAdapter { |
| private LayoutInflater mInflater = (LayoutInflater) mTextView.getContext(). |
| getSystemService(Context.LAYOUT_INFLATER_SERVICE); |
| |
| @Override |
| public int getCount() { |
| return mNumberOfSuggestions; |
| } |
| |
| @Override |
| public Object getItem(int position) { |
| return mSuggestionInfos[position]; |
| } |
| |
| @Override |
| public long getItemId(int position) { |
| return position; |
| } |
| |
| @Override |
| public View getView(int position, View convertView, ViewGroup parent) { |
| TextView textView = (TextView) convertView; |
| |
| if (textView == null) { |
| textView = (TextView) mInflater.inflate(mTextView.mTextEditSuggestionItemLayout, |
| parent, false); |
| } |
| |
| final SuggestionInfo suggestionInfo = mSuggestionInfos[position]; |
| textView.setText(suggestionInfo.text); |
| |
| if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY || |
| suggestionInfo.suggestionIndex == DELETE_TEXT) { |
| textView.setBackgroundColor(Color.TRANSPARENT); |
| } else { |
| textView.setBackgroundColor(Color.WHITE); |
| } |
| |
| return textView; |
| } |
| } |
| |
| private class SuggestionSpanComparator implements Comparator<SuggestionSpan> { |
| public int compare(SuggestionSpan span1, SuggestionSpan span2) { |
| final int flag1 = span1.getFlags(); |
| final int flag2 = span2.getFlags(); |
| if (flag1 != flag2) { |
| // The order here should match what is used in updateDrawState |
| final boolean easy1 = (flag1 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; |
| final boolean easy2 = (flag2 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; |
| final boolean misspelled1 = (flag1 & SuggestionSpan.FLAG_MISSPELLED) != 0; |
| final boolean misspelled2 = (flag2 & SuggestionSpan.FLAG_MISSPELLED) != 0; |
| if (easy1 && !misspelled1) return -1; |
| if (easy2 && !misspelled2) return 1; |
| if (misspelled1) return -1; |
| if (misspelled2) return 1; |
| } |
| |
| return mSpansLengths.get(span1).intValue() - mSpansLengths.get(span2).intValue(); |
| } |
| } |
| |
| /** |
| * Returns the suggestion spans that cover the current cursor position. The suggestion |
| * spans are sorted according to the length of text that they are attached to. |
| */ |
| private SuggestionSpan[] getSuggestionSpans() { |
| int pos = mTextView.getSelectionStart(); |
| Spannable spannable = (Spannable) mTextView.getText(); |
| SuggestionSpan[] suggestionSpans = spannable.getSpans(pos, pos, SuggestionSpan.class); |
| |
| mSpansLengths.clear(); |
| for (SuggestionSpan suggestionSpan : suggestionSpans) { |
| int start = spannable.getSpanStart(suggestionSpan); |
| int end = spannable.getSpanEnd(suggestionSpan); |
| mSpansLengths.put(suggestionSpan, Integer.valueOf(end - start)); |
| } |
| |
| // The suggestions are sorted according to their types (easy correction first, then |
| // misspelled) and to the length of the text that they cover (shorter first). |
| Arrays.sort(suggestionSpans, mSuggestionSpanComparator); |
| return suggestionSpans; |
| } |
| |
| @Override |
| public void show() { |
| if (!(mTextView.getText() instanceof Editable)) return; |
| |
| if (updateSuggestions()) { |
| mCursorWasVisibleBeforeSuggestions = mCursorVisible; |
| mTextView.setCursorVisible(false); |
| mIsShowingUp = true; |
| super.show(); |
| } |
| } |
| |
| @Override |
| protected void measureContent() { |
| final DisplayMetrics displayMetrics = mTextView.getResources().getDisplayMetrics(); |
| final int horizontalMeasure = View.MeasureSpec.makeMeasureSpec( |
| displayMetrics.widthPixels, View.MeasureSpec.AT_MOST); |
| final int verticalMeasure = View.MeasureSpec.makeMeasureSpec( |
| displayMetrics.heightPixels, View.MeasureSpec.AT_MOST); |
| |
| int width = 0; |
| View view = null; |
| for (int i = 0; i < mNumberOfSuggestions; i++) { |
| view = mSuggestionsAdapter.getView(i, view, mContentView); |
| view.getLayoutParams().width = LayoutParams.WRAP_CONTENT; |
| view.measure(horizontalMeasure, verticalMeasure); |
| width = Math.max(width, view.getMeasuredWidth()); |
| } |
| |
| // Enforce the width based on actual text widths |
| mContentView.measure( |
| View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY), |
| verticalMeasure); |
| |
| Drawable popupBackground = mPopupWindow.getBackground(); |
| if (popupBackground != null) { |
| if (mTempRect == null) mTempRect = new Rect(); |
| popupBackground.getPadding(mTempRect); |
| width += mTempRect.left + mTempRect.right; |
| } |
| mPopupWindow.setWidth(width); |
| } |
| |
| @Override |
| protected int getTextOffset() { |
| return mTextView.getSelectionStart(); |
| } |
| |
| @Override |
| protected int getVerticalLocalPosition(int line) { |
| return mTextView.getLayout().getLineBottom(line); |
| } |
| |
| @Override |
| protected int clipVertically(int positionY) { |
| final int height = mContentView.getMeasuredHeight(); |
| final DisplayMetrics displayMetrics = mTextView.getResources().getDisplayMetrics(); |
| return Math.min(positionY, displayMetrics.heightPixels - height); |
| } |
| |
| @Override |
| public void hide() { |
| super.hide(); |
| } |
| |
| private boolean updateSuggestions() { |
| Spannable spannable = (Spannable) mTextView.getText(); |
| SuggestionSpan[] suggestionSpans = getSuggestionSpans(); |
| |
| final int nbSpans = suggestionSpans.length; |
| // Suggestions are shown after a delay: the underlying spans may have been removed |
| if (nbSpans == 0) return false; |
| |
| mNumberOfSuggestions = 0; |
| int spanUnionStart = mTextView.getText().length(); |
| int spanUnionEnd = 0; |
| |
| SuggestionSpan misspelledSpan = null; |
| int underlineColor = 0; |
| |
| for (int spanIndex = 0; spanIndex < nbSpans; spanIndex++) { |
| SuggestionSpan suggestionSpan = suggestionSpans[spanIndex]; |
| final int spanStart = spannable.getSpanStart(suggestionSpan); |
| final int spanEnd = spannable.getSpanEnd(suggestionSpan); |
| spanUnionStart = Math.min(spanStart, spanUnionStart); |
| spanUnionEnd = Math.max(spanEnd, spanUnionEnd); |
| |
| if ((suggestionSpan.getFlags() & SuggestionSpan.FLAG_MISSPELLED) != 0) { |
| misspelledSpan = suggestionSpan; |
| } |
| |
| // The first span dictates the background color of the highlighted text |
| if (spanIndex == 0) underlineColor = suggestionSpan.getUnderlineColor(); |
| |
| String[] suggestions = suggestionSpan.getSuggestions(); |
| int nbSuggestions = suggestions.length; |
| for (int suggestionIndex = 0; suggestionIndex < nbSuggestions; suggestionIndex++) { |
| String suggestion = suggestions[suggestionIndex]; |
| |
| boolean suggestionIsDuplicate = false; |
| for (int i = 0; i < mNumberOfSuggestions; i++) { |
| if (mSuggestionInfos[i].text.toString().equals(suggestion)) { |
| SuggestionSpan otherSuggestionSpan = mSuggestionInfos[i].suggestionSpan; |
| final int otherSpanStart = spannable.getSpanStart(otherSuggestionSpan); |
| final int otherSpanEnd = spannable.getSpanEnd(otherSuggestionSpan); |
| if (spanStart == otherSpanStart && spanEnd == otherSpanEnd) { |
| suggestionIsDuplicate = true; |
| break; |
| } |
| } |
| } |
| |
| if (!suggestionIsDuplicate) { |
| SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; |
| suggestionInfo.suggestionSpan = suggestionSpan; |
| suggestionInfo.suggestionIndex = suggestionIndex; |
| suggestionInfo.text.replace(0, suggestionInfo.text.length(), suggestion); |
| |
| mNumberOfSuggestions++; |
| |
| if (mNumberOfSuggestions == MAX_NUMBER_SUGGESTIONS) { |
| // Also end outer for loop |
| spanIndex = nbSpans; |
| break; |
| } |
| } |
| } |
| } |
| |
| for (int i = 0; i < mNumberOfSuggestions; i++) { |
| highlightTextDifferences(mSuggestionInfos[i], spanUnionStart, spanUnionEnd); |
| } |
| |
| // Add "Add to dictionary" item if there is a span with the misspelled flag |
| if (misspelledSpan != null) { |
| final int misspelledStart = spannable.getSpanStart(misspelledSpan); |
| final int misspelledEnd = spannable.getSpanEnd(misspelledSpan); |
| if (misspelledStart >= 0 && misspelledEnd > misspelledStart) { |
| SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; |
| suggestionInfo.suggestionSpan = misspelledSpan; |
| suggestionInfo.suggestionIndex = ADD_TO_DICTIONARY; |
| suggestionInfo.text.replace(0, suggestionInfo.text.length(), mTextView. |
| getContext().getString(com.android.internal.R.string.addToDictionary)); |
| suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, |
| Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); |
| |
| mNumberOfSuggestions++; |
| } |
| } |
| |
| // Delete item |
| SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; |
| suggestionInfo.suggestionSpan = null; |
| suggestionInfo.suggestionIndex = DELETE_TEXT; |
| suggestionInfo.text.replace(0, suggestionInfo.text.length(), |
| mTextView.getContext().getString(com.android.internal.R.string.deleteText)); |
| suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, |
| Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); |
| mNumberOfSuggestions++; |
| |
| if (mSuggestionRangeSpan == null) mSuggestionRangeSpan = new SuggestionRangeSpan(); |
| if (underlineColor == 0) { |
| // Fallback on the default highlight color when the first span does not provide one |
| mSuggestionRangeSpan.setBackgroundColor(mTextView.mHighlightColor); |
| } else { |
| final float BACKGROUND_TRANSPARENCY = 0.4f; |
| final int newAlpha = (int) (Color.alpha(underlineColor) * BACKGROUND_TRANSPARENCY); |
| mSuggestionRangeSpan.setBackgroundColor( |
| (underlineColor & 0x00FFFFFF) + (newAlpha << 24)); |
| } |
| spannable.setSpan(mSuggestionRangeSpan, spanUnionStart, spanUnionEnd, |
| Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); |
| |
| mSuggestionsAdapter.notifyDataSetChanged(); |
| return true; |
| } |
| |
| private void highlightTextDifferences(SuggestionInfo suggestionInfo, int unionStart, |
| int unionEnd) { |
| final Spannable text = (Spannable) mTextView.getText(); |
| final int spanStart = text.getSpanStart(suggestionInfo.suggestionSpan); |
| final int spanEnd = text.getSpanEnd(suggestionInfo.suggestionSpan); |
| |
| // Adjust the start/end of the suggestion span |
| suggestionInfo.suggestionStart = spanStart - unionStart; |
| suggestionInfo.suggestionEnd = suggestionInfo.suggestionStart |
| + suggestionInfo.text.length(); |
| |
| suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, |
| suggestionInfo.text.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); |
| |
| // Add the text before and after the span. |
| final String textAsString = text.toString(); |
| suggestionInfo.text.insert(0, textAsString.substring(unionStart, spanStart)); |
| suggestionInfo.text.append(textAsString.substring(spanEnd, unionEnd)); |
| } |
| |
| @Override |
| public void onItemClick(AdapterView<?> parent, View view, int position, long id) { |
| Editable editable = (Editable) mTextView.getText(); |
| SuggestionInfo suggestionInfo = mSuggestionInfos[position]; |
| |
| if (suggestionInfo.suggestionIndex == DELETE_TEXT) { |
| final int spanUnionStart = editable.getSpanStart(mSuggestionRangeSpan); |
| int spanUnionEnd = editable.getSpanEnd(mSuggestionRangeSpan); |
| if (spanUnionStart >= 0 && spanUnionEnd > spanUnionStart) { |
| // Do not leave two adjacent spaces after deletion, or one at beginning of text |
| if (spanUnionEnd < editable.length() && |
| Character.isSpaceChar(editable.charAt(spanUnionEnd)) && |
| (spanUnionStart == 0 || |
| Character.isSpaceChar(editable.charAt(spanUnionStart - 1)))) { |
| spanUnionEnd = spanUnionEnd + 1; |
| } |
| mTextView.deleteText_internal(spanUnionStart, spanUnionEnd); |
| } |
| hide(); |
| return; |
| } |
| |
| final int spanStart = editable.getSpanStart(suggestionInfo.suggestionSpan); |
| final int spanEnd = editable.getSpanEnd(suggestionInfo.suggestionSpan); |
| if (spanStart < 0 || spanEnd <= spanStart) { |
| // Span has been removed |
| hide(); |
| return; |
| } |
| |
| final String originalText = editable.toString().substring(spanStart, spanEnd); |
| |
| if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) { |
| Intent intent = new Intent(Settings.ACTION_USER_DICTIONARY_INSERT); |
| intent.putExtra("word", originalText); |
| intent.putExtra("locale", mTextView.getTextServicesLocale().toString()); |
| // Put a listener to replace the original text with a word which the user |
| // modified in a user dictionary dialog. |
| mUserDictionaryListener.waitForUserDictionaryAdded( |
| mTextView, originalText, spanStart, spanEnd); |
| intent.putExtra("listener", new Messenger(mUserDictionaryListener)); |
| intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK); |
| mTextView.getContext().startActivity(intent); |
| // There is no way to know if the word was indeed added. Re-check. |
| // TODO The ExtractEditText should remove the span in the original text instead |
| editable.removeSpan(suggestionInfo.suggestionSpan); |
| Selection.setSelection(editable, spanEnd); |
| updateSpellCheckSpans(spanStart, spanEnd, false); |
| } else { |
| // SuggestionSpans are removed by replace: save them before |
| SuggestionSpan[] suggestionSpans = editable.getSpans(spanStart, spanEnd, |
| SuggestionSpan.class); |
| final int length = suggestionSpans.length; |
| int[] suggestionSpansStarts = new int[length]; |
| int[] suggestionSpansEnds = new int[length]; |
| int[] suggestionSpansFlags = new int[length]; |
| for (int i = 0; i < length; i++) { |
| final SuggestionSpan suggestionSpan = suggestionSpans[i]; |
| suggestionSpansStarts[i] = editable.getSpanStart(suggestionSpan); |
| suggestionSpansEnds[i] = editable.getSpanEnd(suggestionSpan); |
| suggestionSpansFlags[i] = editable.getSpanFlags(suggestionSpan); |
| |
| // Remove potential misspelled flags |
| int suggestionSpanFlags = suggestionSpan.getFlags(); |
| if ((suggestionSpanFlags & SuggestionSpan.FLAG_MISSPELLED) > 0) { |
| suggestionSpanFlags &= ~SuggestionSpan.FLAG_MISSPELLED; |
| suggestionSpanFlags &= ~SuggestionSpan.FLAG_EASY_CORRECT; |
| suggestionSpan.setFlags(suggestionSpanFlags); |
| } |
| } |
| |
| final int suggestionStart = suggestionInfo.suggestionStart; |
| final int suggestionEnd = suggestionInfo.suggestionEnd; |
| final String suggestion = suggestionInfo.text.subSequence( |
| suggestionStart, suggestionEnd).toString(); |
| mTextView.replaceText_internal(spanStart, spanEnd, suggestion); |
| |
| // Notify source IME of the suggestion pick. Do this before |
| // swaping texts. |
| suggestionInfo.suggestionSpan.notifySelection( |
| mTextView.getContext(), originalText, suggestionInfo.suggestionIndex); |
| |
| // Swap text content between actual text and Suggestion span |
| String[] suggestions = suggestionInfo.suggestionSpan.getSuggestions(); |
| suggestions[suggestionInfo.suggestionIndex] = originalText; |
| |
| // Restore previous SuggestionSpans |
| final int lengthDifference = suggestion.length() - (spanEnd - spanStart); |
| for (int i = 0; i < length; i++) { |
| // Only spans that include the modified region make sense after replacement |
| // Spans partially included in the replaced region are removed, there is no |
| // way to assign them a valid range after replacement |
| if (suggestionSpansStarts[i] <= spanStart && |
| suggestionSpansEnds[i] >= spanEnd) { |
| mTextView.setSpan_internal(suggestionSpans[i], suggestionSpansStarts[i], |
| suggestionSpansEnds[i] + lengthDifference, suggestionSpansFlags[i]); |
| } |
| } |
| |
| // Move cursor at the end of the replaced word |
| final int newCursorPosition = spanEnd + lengthDifference; |
| mTextView.setCursorPosition_internal(newCursorPosition, newCursorPosition); |
| } |
| |
| hide(); |
| } |
| } |
| |
| /** |
| * An ActionMode Callback class that is used to provide actions while in text selection mode. |
| * |
| * The default callback provides a subset of Select All, Cut, Copy and Paste actions, depending |
| * on which of these this TextView supports. |
| */ |
| private class SelectionActionModeCallback implements ActionMode.Callback { |
| |
| @Override |
| public boolean onCreateActionMode(ActionMode mode, Menu menu) { |
| TypedArray styledAttributes = mTextView.getContext().obtainStyledAttributes( |
| com.android.internal.R.styleable.SelectionModeDrawables); |
| |
| mode.setTitle(mTextView.getContext().getString( |
| com.android.internal.R.string.textSelectionCABTitle)); |
| mode.setSubtitle(null); |
| mode.setTitleOptionalHint(true); |
| |
| menu.add(0, TextView.ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). |
| setIcon(styledAttributes.getResourceId( |
| R.styleable.SelectionModeDrawables_actionModeSelectAllDrawable, 0)). |
| setAlphabeticShortcut('a'). |
| setShowAsAction( |
| MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); |
| |
| if (mTextView.canCut()) { |
| menu.add(0, TextView.ID_CUT, 0, com.android.internal.R.string.cut). |
| setIcon(styledAttributes.getResourceId( |
| R.styleable.SelectionModeDrawables_actionModeCutDrawable, 0)). |
| setAlphabeticShortcut('x'). |
| setShowAsAction( |
| MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); |
| } |
| |
| if (mTextView.canCopy()) { |
| menu.add(0, TextView.ID_COPY, 0, com.android.internal.R.string.copy). |
| setIcon(styledAttributes.getResourceId( |
| R.styleable.SelectionModeDrawables_actionModeCopyDrawable, 0)). |
| setAlphabeticShortcut('c'). |
| setShowAsAction( |
| MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); |
| } |
| |
| if (mTextView.canPaste()) { |
| menu.add(0, TextView.ID_PASTE, 0, com.android.internal.R.string.paste). |
| setIcon(styledAttributes.getResourceId( |
| R.styleable.SelectionModeDrawables_actionModePasteDrawable, 0)). |
| setAlphabeticShortcut('v'). |
| setShowAsAction( |
| MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); |
| } |
| |
| styledAttributes.recycle(); |
| |
| if (mCustomSelectionActionModeCallback != null) { |
| if (!mCustomSelectionActionModeCallback.onCreateActionMode(mode, menu)) { |
| // The custom mode can choose to cancel the action mode |
| return false; |
| } |
| } |
| |
| if (menu.hasVisibleItems() || mode.getCustomView() != null) { |
| getSelectionController().show(); |
| mTextView.setHasTransientState(true); |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| public boolean onPrepareActionMode(ActionMode mode, Menu menu) { |
| if (mCustomSelectionActionModeCallback != null) { |
| return mCustomSelectionActionModeCallback.onPrepareActionMode(mode, menu); |
| } |
| return true; |
| } |
| |
| @Override |
| public boolean onActionItemClicked(ActionMode mode, MenuItem item) { |
| if (mCustomSelectionActionModeCallback != null && |
| mCustomSelectionActionModeCallback.onActionItemClicked(mode, item)) { |
| return true; |
| } |
| return mTextView.onTextContextMenuItem(item.getItemId()); |
| } |
| |
| @Override |
| public void onDestroyActionMode(ActionMode mode) { |
| if (mCustomSelectionActionModeCallback != null) { |
| mCustomSelectionActionModeCallback.onDestroyActionMode(mode); |
| } |
| |
| /* |
| * If we're ending this mode because we're detaching from a window, |
| * we still have selection state to preserve. Don't clear it, we'll |
| * bring back the selection mode when (if) we get reattached. |
| */ |
| if (!mPreserveDetachedSelection) { |
| Selection.setSelection((Spannable) mTextView.getText(), |
| mTextView.getSelectionEnd()); |
| mTextView.setHasTransientState(false); |
| } |
| |
| if (mSelectionModifierCursorController != null) { |
| mSelectionModifierCursorController.hide(); |
| } |
| |
| mSelectionActionMode = null; |
| } |
| } |
| |
| private class ActionPopupWindow extends PinnedPopupWindow implements OnClickListener { |
| private static final int POPUP_TEXT_LAYOUT = |
| com.android.internal.R.layout.text_edit_action_popup_text; |
| private TextView mPasteTextView; |
| private TextView mReplaceTextView; |
| |
| @Override |
| protected void createPopupWindow() { |
| mPopupWindow = new PopupWindow(mTextView.getContext(), null, |
| com.android.internal.R.attr.textSelectHandleWindowStyle); |
| mPopupWindow.setClippingEnabled(true); |
| } |
| |
| @Override |
| protected void initContentView() { |
| LinearLayout linearLayout = new LinearLayout(mTextView.getContext()); |
| linearLayout.setOrientation(LinearLayout.HORIZONTAL); |
| mContentView = linearLayout; |
| mContentView.setBackgroundResource( |
| com.android.internal.R.drawable.text_edit_paste_window); |
| |
| LayoutInflater inflater = (LayoutInflater) mTextView.getContext(). |
| getSystemService(Context.LAYOUT_INFLATER_SERVICE); |
| |
| LayoutParams wrapContent = new LayoutParams( |
| ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); |
| |
| mPasteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); |
| mPasteTextView.setLayoutParams(wrapContent); |
| mContentView.addView(mPasteTextView); |
| mPasteTextView.setText(com.android.internal.R.string.paste); |
| mPasteTextView.setOnClickListener(this); |
| |
| mReplaceTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); |
| mReplaceTextView.setLayoutParams(wrapContent); |
| mContentView.addView(mReplaceTextView); |
| mReplaceTextView.setText(com.android.internal.R.string.replace); |
| mReplaceTextView.setOnClickListener(this); |
| } |
| |
| @Override |
| public void show() { |
| boolean canPaste = mTextView.canPaste(); |
| boolean canSuggest = mTextView.isSuggestionsEnabled() && isCursorInsideSuggestionSpan(); |
| mPasteTextView.setVisibility(canPaste ? View.VISIBLE : View.GONE); |
| mReplaceTextView.setVisibility(canSuggest ? View.VISIBLE : View.GONE); |
| |
| if (!canPaste && !canSuggest) return; |
| |
| super.show(); |
| } |
| |
| @Override |
| public void onClick(View view) { |
| if (view == mPasteTextView && mTextView.canPaste()) { |
| mTextView.onTextContextMenuItem(TextView.ID_PASTE); |
| hide(); |
| } else if (view == mReplaceTextView) { |
| int middle = (mTextView.getSelectionStart() + mTextView.getSelectionEnd()) / 2; |
| stopSelectionActionMode(); |
| Selection.setSelection((Spannable) mTextView.getText(), middle); |
| showSuggestions(); |
| } |
| } |
| |
| @Override |
| protected int getTextOffset() { |
| return (mTextView.getSelectionStart() + mTextView.getSelectionEnd()) / 2; |
| } |
| |
| @Override |
| protected int getVerticalLocalPosition(int line) { |
| return mTextView.getLayout().getLineTop(line) - mContentView.getMeasuredHeight(); |
| } |
| |
| @Override |
| protected int clipVertically(int positionY) { |
| if (positionY < 0) { |
| final int offset = getTextOffset(); |
| final Layout layout = mTextView.getLayout(); |
| final int line = layout.getLineForOffset(offset); |
| positionY += layout.getLineBottom(line) - layout.getLineTop(line); |
| positionY += mContentView.getMeasuredHeight(); |
| |
| // Assumes insertion and selection handles share the same height |
| final Drawable handle = mTextView.getResources().getDrawable( |
| mTextView.mTextSelectHandleRes); |
| positionY += handle.getIntrinsicHeight(); |
| } |
| |
| return positionY; |
| } |
| } |
| |
| private abstract class HandleView extends View implements TextViewPositionListener { |
| protected Drawable mDrawable; |
| protected Drawable mDrawableLtr; |
| protected Drawable mDrawableRtl; |
| private final PopupWindow mContainer; |
| // Position with respect to the parent TextView |
| private int mPositionX, mPositionY; |
| private boolean mIsDragging; |
| // Offset from touch position to mPosition |
| private float mTouchToWindowOffsetX, mTouchToWindowOffsetY; |
| protected int mHotspotX; |
| // Offsets the hotspot point up, so that cursor is not hidden by the finger when moving up |
| private float mTouchOffsetY; |
| // Where the touch position should be on the handle to ensure a maximum cursor visibility |
| private float mIdealVerticalOffset; |
| // Parent's (TextView) previous position in window |
| private int mLastParentX, mLastParentY; |
| // Transient action popup window for Paste and Replace actions |
| protected ActionPopupWindow mActionPopupWindow; |
| // Previous text character offset |
| private int mPreviousOffset = -1; |
| // Previous text character offset |
| private boolean mPositionHasChanged = true; |
| // Used to delay the appearance of the action popup window |
| private Runnable mActionPopupShower; |
| |
| public HandleView(Drawable drawableLtr, Drawable drawableRtl) { |
| super(mTextView.getContext()); |
| mContainer = new PopupWindow(mTextView.getContext(), null, |
| com.android.internal.R.attr.textSelectHandleWindowStyle); |
| mContainer.setSplitTouchEnabled(true); |
| mContainer.setClippingEnabled(false); |
| mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); |
| mContainer.setContentView(this); |
| |
| mDrawableLtr = drawableLtr; |
| mDrawableRtl = drawableRtl; |
| |
| updateDrawable(); |
| |
| final int handleHeight = mDrawable.getIntrinsicHeight(); |
| mTouchOffsetY = -0.3f * handleHeight; |
| mIdealVerticalOffset = 0.7f * handleHeight; |
| } |
| |
| protected void updateDrawable() { |
| final int offset = getCurrentCursorOffset(); |
| final boolean isRtlCharAtOffset = mTextView.getLayout().isRtlCharAt(offset); |
| mDrawable = isRtlCharAtOffset ? mDrawableRtl : mDrawableLtr; |
| mHotspotX = getHotspotX(mDrawable, isRtlCharAtOffset); |
| } |
| |
| protected abstract int getHotspotX(Drawable drawable, boolean isRtlRun); |
| |
| // Touch-up filter: number of previous positions remembered |
| private static final int HISTORY_SIZE = 5; |
| private static final int TOUCH_UP_FILTER_DELAY_AFTER = 150; |
| private static final int TOUCH_UP_FILTER_DELAY_BEFORE = 350; |
| private final long[] mPreviousOffsetsTimes = new long[HISTORY_SIZE]; |
| private final int[] mPreviousOffsets = new int[HISTORY_SIZE]; |
| private int mPreviousOffsetIndex = 0; |
| private int mNumberPreviousOffsets = 0; |
| |
| private void startTouchUpFilter(int offset) { |
| mNumberPreviousOffsets = 0; |
| addPositionToTouchUpFilter(offset); |
| } |
| |
| private void addPositionToTouchUpFilter(int offset) { |
| mPreviousOffsetIndex = (mPreviousOffsetIndex + 1) % HISTORY_SIZE; |
| mPreviousOffsets[mPreviousOffsetIndex] = offset; |
| mPreviousOffsetsTimes[mPreviousOffsetIndex] = SystemClock.uptimeMillis(); |
| mNumberPreviousOffsets++; |
| } |
| |
| private void filterOnTouchUp() { |
| final long now = SystemClock.uptimeMillis(); |
| int i = 0; |
| int index = mPreviousOffsetIndex; |
| final int iMax = Math.min(mNumberPreviousOffsets, HISTORY_SIZE); |
| while (i < iMax && (now - mPreviousOffsetsTimes[index]) < TOUCH_UP_FILTER_DELAY_AFTER) { |
| i++; |
| index = (mPreviousOffsetIndex - i + HISTORY_SIZE) % HISTORY_SIZE; |
| } |
| |
| if (i > 0 && i < iMax && |
| (now - mPreviousOffsetsTimes[index]) > TOUCH_UP_FILTER_DELAY_BEFORE) { |
| positionAtCursorOffset(mPreviousOffsets[index], false); |
| } |
| } |
| |
| public boolean offsetHasBeenChanged() { |
| return mNumberPreviousOffsets > 1; |
| } |
| |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| setMeasuredDimension(mDrawable.getIntrinsicWidth(), mDrawable.getIntrinsicHeight()); |
| } |
| |
| public void show() { |
| if (isShowing()) return; |
| |
| getPositionListener().addSubscriber(this, true /* local position may change */); |
| |
| // Make sure the offset is always considered new, even when focusing at same position |
| mPreviousOffset = -1; |
| positionAtCursorOffset(getCurrentCursorOffset(), false); |
| |
| hideActionPopupWindow(); |
| } |
| |
| protected void dismiss() { |
| mIsDragging = false; |
| mContainer.dismiss(); |
| onDetached(); |
| } |
| |
| public void hide() { |
| dismiss(); |
| |
| getPositionListener().removeSubscriber(this); |
| } |
| |
| void showActionPopupWindow(int delay) { |
| if (mActionPopupWindow == null) { |
| mActionPopupWindow = new ActionPopupWindow(); |
| } |
| if (mActionPopupShower == null) { |
| mActionPopupShower = new Runnable() { |
| public void run() { |
| mActionPopupWindow.show(); |
| } |
| }; |
| } else { |
| mTextView.removeCallbacks(mActionPopupShower); |
| } |
| mTextView.postDelayed(mActionPopupShower, delay); |
| } |
| |
| protected void hideActionPopupWindow() { |
| if (mActionPopupShower != null) { |
| mTextView.removeCallbacks(mActionPopupShower); |
| } |
| if (mActionPopupWindow != null) { |
| mActionPopupWindow.hide(); |
| } |
| } |
| |
| public boolean isShowing() { |
| return mContainer.isShowing(); |
| } |
| |
| private boolean isVisible() { |
| // Always show a dragging handle. |
| if (mIsDragging) { |
| return true; |
| } |
| |
| if (mTextView.isInBatchEditMode()) { |
| return false; |
| } |
| |
| return isPositionVisible(mPositionX + mHotspotX, mPositionY); |
| } |
| |
| public abstract int getCurrentCursorOffset(); |
| |
| protected abstract void updateSelection(int offset); |
| |
| public abstract void updatePosition(float x, float y); |
| |
| protected void positionAtCursorOffset(int offset, boolean parentScrolled) { |
| // A HandleView relies on the layout, which may be nulled by external methods |
| Layout layout = mTextView.getLayout(); |
| if (layout == null) { |
| // Will update controllers' state, hiding them and stopping selection mode if needed |
| prepareCursorControllers(); |
| return; |
| } |
| |
| boolean offsetChanged = offset != mPreviousOffset; |
| if (offsetChanged || parentScrolled) { |
| if (offsetChanged) { |
| updateSelection(offset); |
| addPositionToTouchUpFilter(offset); |
| } |
| final int line = layout.getLineForOffset(offset); |
| |
| mPositionX = (int) (layout.getPrimaryHorizontal(offset) - 0.5f - mHotspotX); |
| mPositionY = layout.getLineBottom(line); |
| |
| // Take TextView's padding and scroll into account. |
| mPositionX += mTextView.viewportToContentHorizontalOffset(); |
| mPositionY += mTextView.viewportToContentVerticalOffset(); |
| |
| mPreviousOffset = offset; |
| mPositionHasChanged = true; |
| } |
| } |
| |
| public void updatePosition(int parentPositionX, int parentPositionY, |
| boolean parentPositionChanged, boolean parentScrolled) { |
| positionAtCursorOffset(getCurrentCursorOffset(), parentScrolled); |
| if (parentPositionChanged || mPositionHasChanged) { |
| if (mIsDragging) { |
| // Update touchToWindow offset in case of parent scrolling while dragging |
| if (parentPositionX != mLastParentX || parentPositionY != mLastParentY) { |
| mTouchToWindowOffsetX += parentPositionX - mLastParentX; |
| mTouchToWindowOffsetY += parentPositionY - mLastParentY; |
| mLastParentX = parentPositionX; |
| mLastParentY = parentPositionY; |
| } |
| |
| onHandleMoved(); |
| } |
| |
| if (isVisible()) { |
| final int positionX = parentPositionX + mPositionX; |
| final int positionY = parentPositionY + mPositionY; |
| if (isShowing()) { |
| mContainer.update(positionX, positionY, -1, -1); |
| } else { |
| mContainer.showAtLocation(mTextView, Gravity.NO_GRAVITY, |
| positionX, positionY); |
| } |
| } else { |
| if (isShowing()) { |
| dismiss(); |
| } |
| } |
| |
| mPositionHasChanged = false; |
| } |
| } |
| |
| @Override |
| protected void onDraw(Canvas c) { |
| mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); |
| mDrawable.draw(c); |
| } |
| |
| @Override |
| public boolean onTouchEvent(MotionEvent ev) { |
| switch (ev.getActionMasked()) { |
| case MotionEvent.ACTION_DOWN: { |
| startTouchUpFilter(getCurrentCursorOffset()); |
| mTouchToWindowOffsetX = ev.getRawX() - mPositionX; |
| mTouchToWindowOffsetY = ev.getRawY() - mPositionY; |
| |
| final PositionListener positionListener = getPositionListener(); |
| mLastParentX = positionListener.getPositionX(); |
| mLastParentY = positionListener.getPositionY(); |
| mIsDragging = true; |
| break; |
| } |
| |
| case MotionEvent.ACTION_MOVE: { |
| final float rawX = ev.getRawX(); |
| final float rawY = ev.getRawY(); |
| |
| // Vertical hysteresis: vertical down movement tends to snap to ideal offset |
| final float previousVerticalOffset = mTouchToWindowOffsetY - mLastParentY; |
| final float currentVerticalOffset = rawY - mPositionY - mLastParentY; |
| float newVerticalOffset; |
| if (previousVerticalOffset < mIdealVerticalOffset) { |
| newVerticalOffset = Math.min(currentVerticalOffset, mIdealVerticalOffset); |
| newVerticalOffset = Math.max(newVerticalOffset, previousVerticalOffset); |
| } else { |
| newVerticalOffset = Math.max(currentVerticalOffset, mIdealVerticalOffset); |
| newVerticalOffset = Math.min(newVerticalOffset, previousVerticalOffset); |
| } |
| mTouchToWindowOffsetY = newVerticalOffset + mLastParentY; |
| |
| final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; |
| final float newPosY = rawY - mTouchToWindowOffsetY + mTouchOffsetY; |
| |
| updatePosition(newPosX, newPosY); |
| break; |
| } |
| |
| case MotionEvent.ACTION_UP: |
| filterOnTouchUp(); |
| mIsDragging = false; |
| break; |
| |
| case MotionEvent.ACTION_CANCEL: |
| mIsDragging = false; |
| break; |
| } |
| return true; |
| } |
| |
| public boolean isDragging() { |
| return mIsDragging; |
| } |
| |
| void onHandleMoved() { |
| hideActionPopupWindow(); |
| } |
| |
| public void onDetached() { |
| hideActionPopupWindow(); |
| } |
| } |
| |
| private class InsertionHandleView extends HandleView { |
| private static final int DELAY_BEFORE_HANDLE_FADES_OUT = 4000; |
| private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; // seconds |
| |
| // Used to detect taps on the insertion handle, which will affect the ActionPopupWindow |
| private float mDownPositionX, mDownPositionY; |
| private Runnable mHider; |
| |
| public InsertionHandleView(Drawable drawable) { |
| super(drawable, drawable); |
| } |
| |
| @Override |
| public void show() { |
| super.show(); |
| |
| final long durationSinceCutOrCopy = |
| SystemClock.uptimeMillis() - TextView.LAST_CUT_OR_COPY_TIME; |
| if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) { |
| showActionPopupWindow(0); |
| } |
| |
| hideAfterDelay(); |
| } |
| |
| public void showWithActionPopup() { |
| show(); |
| showActionPopupWindow(0); |
| } |
| |
| private void hideAfterDelay() { |
| if (mHider == null) { |
| mHider = new Runnable() { |
| public void run() { |
| hide(); |
| } |
| }; |
| } else { |
| removeHiderCallback(); |
| } |
| mTextView.postDelayed(mHider, DELAY_BEFORE_HANDLE_FADES_OUT); |
| } |
| |
| private void removeHiderCallback() { |
| if (mHider != null) { |
| mTextView.removeCallbacks(mHider); |
| } |
| } |
| |
| @Override |
| protected int getHotspotX(Drawable drawable, boolean isRtlRun) { |
| return drawable.getIntrinsicWidth() / 2; |
| } |
| |
| @Override |
| public boolean onTouchEvent(MotionEvent ev) { |
| final boolean result = super.onTouchEvent(ev); |
| |
| switch (ev.getActionMasked()) { |
| case MotionEvent.ACTION_DOWN: |
| mDownPositionX = ev.getRawX(); |
| mDownPositionY = ev.getRawY(); |
| break; |
| |
| case MotionEvent.ACTION_UP: |
| if (!offsetHasBeenChanged()) { |
| final float deltaX = mDownPositionX - ev.getRawX(); |
| final float deltaY = mDownPositionY - ev.getRawY(); |
| final float distanceSquared = deltaX * deltaX + deltaY * deltaY; |
| |
| final ViewConfiguration viewConfiguration = ViewConfiguration.get( |
| mTextView.getContext()); |
| final int touchSlop = viewConfiguration.getScaledTouchSlop(); |
| |
| if (distanceSquared < touchSlop * touchSlop) { |
| if (mActionPopupWindow != null && mActionPopupWindow.isShowing()) { |
| // Tapping on the handle dismisses the displayed action popup |
| mActionPopupWindow.hide(); |
| } else { |
| showWithActionPopup(); |
| } |
| } |
| } |
| hideAfterDelay(); |
| break; |
| |
| case MotionEvent.ACTION_CANCEL: |
| hideAfterDelay(); |
| break; |
| |
| default: |
| break; |
| } |
| |
| return result; |
| } |
| |
| @Override |
| public int getCurrentCursorOffset() { |
| return mTextView.getSelectionStart(); |
| } |
| |
| @Override |
| public void updateSelection(int offset) { |
| Selection.setSelection((Spannable) mTextView.getText(), offset); |
| } |
| |
| @Override |
| public void updatePosition(float x, float y) { |
| positionAtCursorOffset(mTextView.getOffsetForPosition(x, y), false); |
| } |
| |
| @Override |
| void onHandleMoved() { |
| super.onHandleMoved(); |
| removeHiderCallback(); |
| } |
| |
| @Override |
| public void onDetached() { |
| super.onDetached(); |
| removeHiderCallback(); |
| } |
| } |
| |
| private class SelectionStartHandleView extends HandleView { |
| |
| public SelectionStartHandleView(Drawable drawableLtr, Drawable drawableRtl) { |
| super(drawableLtr, drawableRtl); |
| } |
| |
| @Override |
| protected int getHotspotX(Drawable drawable, boolean isRtlRun) { |
| if (isRtlRun) { |
| return drawable.getIntrinsicWidth() / 4; |
| } else { |
| return (drawable.getIntrinsicWidth() * 3) / 4; |
| } |
| } |
| |
| @Override |
| public int getCurrentCursorOffset() { |
| return mTextView.getSelectionStart(); |
| } |
| |
| @Override |
| public void updateSelection(int offset) { |
| Selection.setSelection((Spannable) mTextView.getText(), offset, |
| mTextView.getSelectionEnd()); |
| updateDrawable(); |
| } |
| |
| @Override |
| public void updatePosition(float x, float y) { |
| int offset = mTextView.getOffsetForPosition(x, y); |
| |
| // Handles can not cross and selection is at least one character |
| final int selectionEnd = mTextView.getSelectionEnd(); |
| if (offset >= selectionEnd) offset = Math.max(0, selectionEnd - 1); |
| |
| positionAtCursorOffset(offset, false); |
| } |
| |
| public ActionPopupWindow getActionPopupWindow() { |
| return mActionPopupWindow; |
| } |
| } |
| |
| private class SelectionEndHandleView extends HandleView { |
| |
| public SelectionEndHandleView(Drawable drawableLtr, Drawable drawableRtl) { |
| super(drawableLtr, drawableRtl); |
| } |
| |
| @Override |
| protected int getHotspotX(Drawable drawable, boolean isRtlRun) { |
| if (isRtlRun) { |
| return (drawable.getIntrinsicWidth() * 3) / 4; |
| } else { |
| return drawable.getIntrinsicWidth() / 4; |
| } |
| } |
| |
| @Override |
| public int getCurrentCursorOffset() { |
| return mTextView.getSelectionEnd(); |
| } |
| |
| @Override |
| public void updateSelection(int offset) { |
| Selection.setSelection((Spannable) mTextView.getText(), |
| mTextView.getSelectionStart(), offset); |
| updateDrawable(); |
| } |
| |
| @Override |
| public void updatePosition(float x, float y) { |
| int offset = mTextView.getOffsetForPosition(x, y); |
| |
| // Handles can not cross and selection is at least one character |
| final int selectionStart = mTextView.getSelectionStart(); |
| if (offset <= selectionStart) { |
| offset = Math.min(selectionStart + 1, mTextView.getText().length()); |
| } |
| |
| positionAtCursorOffset(offset, false); |
| } |
| |
| public void setActionPopupWindow(ActionPopupWindow actionPopupWindow) { |
| mActionPopupWindow = actionPopupWindow; |
| } |
| } |
| |
| /** |
| * A CursorController instance can be used to control a cursor in the text. |
| */ |
| private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener { |
| /** |
| * Makes the cursor controller visible on screen. |
| * See also {@link #hide()}. |
| */ |
| public void show(); |
| |
| /** |
| * Hide the cursor controller from screen. |
| * See also {@link #show()}. |
| */ |
| public void hide(); |
| |
| /** |
| * Called when the view is detached from window. Perform house keeping task, such as |
| * stopping Runnable thread that would otherwise keep a reference on the context, thus |
| * preventing the activity from being recycled. |
| */ |
| public void onDetached(); |
| } |
| |
| private class InsertionPointCursorController implements CursorController { |
| private InsertionHandleView mHandle; |
| |
| public void show() { |
| getHandle().show(); |
| } |
| |
| public void showWithActionPopup() { |
| getHandle().showWithActionPopup(); |
| } |
| |
| public void hide() { |
| if (mHandle != null) { |
| mHandle.hide(); |
| } |
| } |
| |
| public void onTouchModeChanged(boolean isInTouchMode) { |
| if (!isInTouchMode) { |
| hide(); |
| } |
| } |
| |
| private InsertionHandleView getHandle() { |
| if (mSelectHandleCenter == null) { |
| mSelectHandleCenter = mTextView.getResources().getDrawable( |
| mTextView.mTextSelectHandleRes); |
| } |
| if (mHandle == null) { |
| mHandle = new InsertionHandleView(mSelectHandleCenter); |
| } |
| return mHandle; |
| } |
| |
| @Override |
| public void onDetached() { |
| final ViewTreeObserver observer = mTextView.getViewTreeObserver(); |
| observer.removeOnTouchModeChangeListener(this); |
| |
| if (mHandle != null) mHandle.onDetached(); |
| } |
| } |
| |
| class SelectionModifierCursorController implements CursorController { |
| private static final int DELAY_BEFORE_REPLACE_ACTION = 200; // milliseconds |
| // The cursor controller handles, lazily created when shown. |
| private SelectionStartHandleView mStartHandle; |
| private SelectionEndHandleView mEndHandle; |
| // The offsets of that last touch down event. Remembered to start selection there. |
| private int mMinTouchOffset, mMaxTouchOffset; |
| |
| // Double tap detection |
| private long mPreviousTapUpTime = 0; |
| private float mDownPositionX, mDownPositionY; |
| private boolean mGestureStayedInTapRegion; |
| |
| SelectionModifierCursorController() { |
| resetTouchOffsets(); |
| } |
| |
| public void show() { |
| if (mTextView.isInBatchEditMode()) { |
| return; |
| } |
| initDrawables(); |
| initHandles(); |
| hideInsertionPointCursorController(); |
| } |
| |
| private void initDrawables() { |
| if (mSelectHandleLeft == null) { |
| mSelectHandleLeft = mTextView.getContext().getResources().getDrawable( |
| mTextView.mTextSelectHandleLeftRes); |
| } |
| if (mSelectHandleRight == null) { |
| mSelectHandleRight = mTextView.getContext().getResources().getDrawable( |
| mTextView.mTextSelectHandleRightRes); |
| } |
| } |
| |
| private void initHandles() { |
| // Lazy object creation has to be done before updatePosition() is called. |
| if (mStartHandle == null) { |
| mStartHandle = new SelectionStartHandleView(mSelectHandleLeft, mSelectHandleRight); |
| } |
| if (mEndHandle == null) { |
| mEndHandle = new SelectionEndHandleView(mSelectHandleRight, mSelectHandleLeft); |
| } |
| |
| mStartHandle.show(); |
| mEndHandle.show(); |
| |
| // Make sure both left and right handles share the same ActionPopupWindow (so that |
| // moving any of the handles hides the action popup). |
| mStartHandle.showActionPopupWindow(DELAY_BEFORE_REPLACE_ACTION); |
| mEndHandle.setActionPopupWindow(mStartHandle.getActionPopupWindow()); |
| |
| hideInsertionPointCursorController(); |
| } |
| |
| public void hide() { |
| if (mStartHandle != null) mStartHandle.hide(); |
| if (mEndHandle != null) mEndHandle.hide(); |
| } |
| |
| public void onTouchEvent(MotionEvent event) { |
| // This is done even when the View does not have focus, so that long presses can start |
| // selection and tap can move cursor from this tap position. |
| switch (event.getActionMasked()) { |
| case MotionEvent.ACTION_DOWN: |
| final float x = event.getX(); |
| final float y = event.getY(); |
| |
| // Remember finger down position, to be able to start selection from there |
| mMinTouchOffset = mMaxTouchOffset = mTextView.getOffsetForPosition(x, y); |
| |
| // Double tap detection |
| if (mGestureStayedInTapRegion) { |
| long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; |
| if (duration <= ViewConfiguration.getDoubleTapTimeout()) { |
| final float deltaX = x - mDownPositionX; |
| final float deltaY = y - mDownPositionY; |
| final float distanceSquared = deltaX * deltaX + deltaY * deltaY; |
| |
| ViewConfiguration viewConfiguration = ViewConfiguration.get( |
| mTextView.getContext()); |
| int doubleTapSlop = viewConfiguration.getScaledDoubleTapSlop(); |
| boolean stayedInArea = distanceSquared < doubleTapSlop * doubleTapSlop; |
| |
| if (stayedInArea && isPositionOnText(x, y)) { |
| startSelectionActionMode(); |
| mDiscardNextActionUp = true; |
| } |
| } |
| } |
| |
| mDownPositionX = x; |
| mDownPositionY = y; |
| mGestureStayedInTapRegion = true; |
| break; |
| |
| case MotionEvent.ACTION_POINTER_DOWN: |
| case MotionEvent.ACTION_POINTER_UP: |
| // Handle multi-point gestures. Keep min and max offset positions. |
| // Only activated for devices that correctly handle multi-touch. |
| if (mTextView.getContext().getPackageManager().hasSystemFeature( |
| PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { |
| updateMinAndMaxOffsets(event); |
| } |
| break; |
| |
| case MotionEvent.ACTION_MOVE: |
| if (mGestureStayedInTapRegion) { |
| final float deltaX = event.getX() - mDownPositionX; |
| final float deltaY = event.getY() - mDownPositionY; |
| final float distanceSquared = deltaX * deltaX + deltaY * deltaY; |
| |
| final ViewConfiguration viewConfiguration = ViewConfiguration.get( |
| mTextView.getContext()); |
| int doubleTapTouchSlop = viewConfiguration.getScaledDoubleTapTouchSlop(); |
| |
| if (distanceSquared > doubleTapTouchSlop * doubleTapTouchSlop) { |
| mGestureStayedInTapRegion = false; |
| } |
| } |
| break; |
| |
| case MotionEvent.ACTION_UP: |
| mPreviousTapUpTime = SystemClock.uptimeMillis(); |
| break; |
| } |
| } |
| |
| /** |
| * @param event |
| */ |
| private void updateMinAndMaxOffsets(MotionEvent event) { |
| int pointerCount = event.getPointerCount(); |
| for (int index = 0; index < pointerCount; index++) { |
| int offset = mTextView.getOffsetForPosition(event.getX(index), event.getY(index)); |
| if (offset < mMinTouchOffset) mMinTouchOffset = offset; |
| if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; |
| } |
| } |
| |
| public int getMinTouchOffset() { |
| return mMinTouchOffset; |
| } |
| |
| public int getMaxTouchOffset() { |
| return mMaxTouchOffset; |
| } |
| |
| public void resetTouchOffsets() { |
| mMinTouchOffset = mMaxTouchOffset = -1; |
| } |
| |
| /** |
| * @return true iff this controller is currently used to move the selection start. |
| */ |
| public boolean isSelectionStartDragged() { |
| return mStartHandle != null && mStartHandle.isDragging(); |
| } |
| |
| public void onTouchModeChanged(boolean isInTouchMode) { |
| if (!isInTouchMode) { |
| hide(); |
| } |
| } |
| |
| @Override |
| public void onDetached() { |
| final ViewTreeObserver observer = mTextView.getViewTreeObserver(); |
| observer.removeOnTouchModeChangeListener(this); |
| |
| if (mStartHandle != null) mStartHandle.onDetached(); |
| if (mEndHandle != null) mEndHandle.onDetached(); |
| } |
| } |
| |
| private class CorrectionHighlighter { |
| private final Path mPath = new Path(); |
| private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); |
| private int mStart, mEnd; |
| private long mFadingStartTime; |
| private RectF mTempRectF; |
| private final static int FADE_OUT_DURATION = 400; |
| |
| public CorrectionHighlighter() { |
| mPaint.setCompatibilityScaling(mTextView.getResources().getCompatibilityInfo(). |
| applicationScale); |
| mPaint.setStyle(Paint.Style.FILL); |
| } |
| |
| public void highlight(CorrectionInfo info) { |
| mStart = info.getOffset(); |
| mEnd = mStart + info.getNewText().length(); |
| mFadingStartTime = SystemClock.uptimeMillis(); |
| |
| if (mStart < 0 || mEnd < 0) { |
| stopAnimation(); |
| } |
| } |
| |
| public void draw(Canvas canvas, int cursorOffsetVertical) { |
| if (updatePath() && updatePaint()) { |
| if (cursorOffsetVertical != 0) { |
| canvas.translate(0, cursorOffsetVertical); |
| } |
| |
| canvas.drawPath(mPath, mPaint); |
| |
| if (cursorOffsetVertical != 0) { |
| canvas.translate(0, -cursorOffsetVertical); |
| } |
| invalidate(true); // TODO invalidate cursor region only |
| } else { |
| stopAnimation(); |
| invalidate(false); // TODO invalidate cursor region only |
| } |
| } |
| |
| private boolean updatePaint() { |
| final long duration = SystemClock.uptimeMillis() - mFadingStartTime; |
| if (duration > FADE_OUT_DURATION) return false; |
| |
| final float coef = 1.0f - (float) duration / FADE_OUT_DURATION; |
| final int highlightColorAlpha = Color.alpha(mTextView.mHighlightColor); |
| final int color = (mTextView.mHighlightColor & 0x00FFFFFF) + |
| ((int) (highlightColorAlpha * coef) << 24); |
| mPaint.setColor(color); |
| return true; |
| } |
| |
| private boolean updatePath() { |
| final Layout layout = mTextView.getLayout(); |
| if (layout == null) return false; |
| |
| // Update in case text is edited while the animation is run |
| final int length = mTextView.getText().length(); |
| int start = Math.min(length, mStart); |
| int end = Math.min(length, mEnd); |
| |
| mPath.reset(); |
| layout.getSelectionPath(start, end, mPath); |
| return true; |
| } |
| |
| private void invalidate(boolean delayed) { |
| if (mTextView.getLayout() == null) return; |
| |
| if (mTempRectF == null) mTempRectF = new RectF(); |
| mPath.computeBounds(mTempRectF, false); |
| |
| int left = mTextView.getCompoundPaddingLeft(); |
| int top = mTextView.getExtendedPaddingTop() + mTextView.getVerticalOffset(true); |
| |
| if (delayed) { |
| mTextView.postInvalidateOnAnimation( |
| left + (int) mTempRectF.left, top + (int) mTempRectF.top, |
| left + (int) mTempRectF.right, top + (int) mTempRectF.bottom); |
| } else { |
| mTextView.postInvalidate((int) mTempRectF.left, (int) mTempRectF.top, |
| (int) mTempRectF.right, (int) mTempRectF.bottom); |
| } |
| } |
| |
| private void stopAnimation() { |
| Editor.this.mCorrectionHighlighter = null; |
| } |
| } |
| |
| private static class ErrorPopup extends PopupWindow { |
| private boolean mAbove = false; |
| private final TextView mView; |
| private int mPopupInlineErrorBackgroundId = 0; |
| private int mPopupInlineErrorAboveBackgroundId = 0; |
| |
| ErrorPopup(TextView v, int width, int height) { |
| super(v, width, height); |
| mView = v; |
| // Make sure the TextView has a background set as it will be used the first time it is |
| // shown and positioned. Initialized with below background, which should have |
| // dimensions identical to the above version for this to work (and is more likely). |
| mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, |
| com.android.internal.R.styleable.Theme_errorMessageBackground); |
| mView.setBackgroundResource(mPopupInlineErrorBackgroundId); |
| } |
| |
| void fixDirection(boolean above) { |
| mAbove = above; |
| |
| if (above) { |
| mPopupInlineErrorAboveBackgroundId = |
| getResourceId(mPopupInlineErrorAboveBackgroundId, |
| com.android.internal.R.styleable.Theme_errorMessageAboveBackground); |
| } else { |
| mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, |
| com.android.internal.R.styleable.Theme_errorMessageBackground); |
| } |
| |
| mView.setBackgroundResource(above ? mPopupInlineErrorAboveBackgroundId : |
| mPopupInlineErrorBackgroundId); |
| } |
| |
| private int getResourceId(int currentId, int index) { |
| if (currentId == 0) { |
| TypedArray styledAttributes = mView.getContext().obtainStyledAttributes( |
| R.styleable.Theme); |
| currentId = styledAttributes.getResourceId(index, 0); |
| styledAttributes.recycle(); |
| } |
| return currentId; |
| } |
| |
| @Override |
| public void update(int x, int y, int w, int h, boolean force) { |
| super.update(x, y, w, h, force); |
| |
| boolean above = isAboveAnchor(); |
| if (above != mAbove) { |
| fixDirection(above); |
| } |
| } |
| } |
| |
| static class InputContentType { |
| int imeOptions = EditorInfo.IME_NULL; |
| String privateImeOptions; |
| CharSequence imeActionLabel; |
| int imeActionId; |
| Bundle extras; |
| OnEditorActionListener onEditorActionListener; |
| boolean enterDown; |
| } |
| |
| static class InputMethodState { |
| Rect mCursorRectInWindow = new Rect(); |
| RectF mTmpRectF = new RectF(); |
| float[] mTmpOffset = new float[2]; |
| ExtractedTextRequest mExtractedTextRequest; |
| final ExtractedText mExtractedText = new ExtractedText(); |
| int mBatchEditNesting; |
| boolean mCursorChanged; |
| boolean mSelectionModeChanged; |
| boolean mContentChanged; |
| int mChangedStart, mChangedEnd, mChangedDelta; |
| } |
| |
| /** |
| * @hide |
| */ |
| public static class UserDictionaryListener extends Handler { |
| public TextView mTextView; |
| public String mOriginalWord; |
| public int mWordStart; |
| public int mWordEnd; |
| |
| public void waitForUserDictionaryAdded( |
| TextView tv, String originalWord, int spanStart, int spanEnd) { |
| mTextView = tv; |
| mOriginalWord = originalWord; |
| mWordStart = spanStart; |
| mWordEnd = spanEnd; |
| } |
| |
| @Override |
| public void handleMessage(Message msg) { |
| switch(msg.what) { |
| case 0: /* CODE_WORD_ADDED */ |
| case 2: /* CODE_ALREADY_PRESENT */ |
| if (!(msg.obj instanceof Bundle)) { |
| Log.w(TAG, "Illegal message. Abort handling onUserDictionaryAdded."); |
| return; |
| } |
| final Bundle bundle = (Bundle)msg.obj; |
| final String originalWord = bundle.getString("originalWord"); |
| final String addedWord = bundle.getString("word"); |
| onUserDictionaryAdded(originalWord, addedWord); |
| return; |
| default: |
| return; |
| } |
| } |
| |
| private void onUserDictionaryAdded(String originalWord, String addedWord) { |
| if (TextUtils.isEmpty(mOriginalWord) || TextUtils.isEmpty(addedWord)) { |
| return; |
| } |
| if (mWordStart < 0 || mWordEnd >= mTextView.length()) { |
| return; |
| } |
| if (!mOriginalWord.equals(originalWord)) { |
| return; |
| } |
| if (originalWord.equals(addedWord)) { |
| return; |
| } |
| final Editable editable = (Editable) mTextView.getText(); |
| final String currentWord = editable.toString().substring(mWordStart, mWordEnd); |
| if (!currentWord.equals(originalWord)) { |
| return; |
| } |
| mTextView.replaceText_internal(mWordStart, mWordEnd, addedWord); |
| // Move cursor at the end of the replaced word |
| final int newCursorPosition = mWordStart + addedWord.length(); |
| mTextView.setCursorPosition_internal(newCursorPosition, newCursorPosition); |
| } |
| } |
| } |