Merge "Fix app crash if the selection is from reverse direction." into rvc-dev am: 4661207775 (a922f821) · Commits · e / os / android_frameworks_base

core/java/android/widget/SelectionActionModeHelper.java

+55 −18

Original line number	Diff line number	Diff line
		@@ -103,17 +103,44 @@ public final class SelectionActionModeHelper {
		}
		}

		/**
		* Swap the selection index if the start index is greater than end index.
		*
		* @return the swap result, index 0 is the start index and index 1 is the end index.
		*/
		private static int[] sortSelctionIndices(int selectionStart, int selectionEnd) {
		if (selectionStart < selectionEnd) {
		return new int[]{selectionStart, selectionEnd};
		}
		return new int[]{selectionEnd, selectionStart};
		}

		/**
		* The {@link TextView} selection start and end index may not be sorted, this method will swap
		* the {@link TextView} selection index if the start index is greater than end index.
		*
		* @param textView the selected TextView.
		* @return the swap result, index 0 is the start index and index 1 is the end index.
		*/
		private static int[] sortSelctionIndicesFromTextView(TextView textView) {
		int selectionStart = textView.getSelectionStart();
		int selectionEnd = textView.getSelectionEnd();

		return sortSelctionIndices(selectionStart, selectionEnd);
		}

		/**
		* Starts Selection ActionMode.
		*/
		public void startSelectionActionModeAsync(boolean adjustSelection) {
		// Check if the smart selection should run for editable text.
		adjustSelection &= getTextClassificationSettings().isSmartSelectionEnabled();
		int[] sortedSelectionIndices = sortSelctionIndicesFromTextView(mTextView);

		mSelectionTracker.onOriginalSelection(
		getText(mTextView),
		mTextView.getSelectionStart(),
		mTextView.getSelectionEnd(),
		sortedSelectionIndices[0],
		sortedSelectionIndices[1],
		false /isLink/);
		cancelAsyncTask();
		if (skipTextClassification()) {
		@@ -138,12 +165,14 @@ public final class SelectionActionModeHelper {
		* Starts Link ActionMode.
		*/
		public void startLinkActionModeAsync(int start, int end) {
		mSelectionTracker.onOriginalSelection(getText(mTextView), start, end, true /isLink/);
		int[] indexResult = sortSelctionIndices(start, end);
		mSelectionTracker.onOriginalSelection(getText(mTextView), indexResult[0], indexResult[1],
		true /isLink/);
		cancelAsyncTask();
		if (skipTextClassification()) {
		startLinkActionMode(null);
		} else {
		resetTextClassificationHelper(start, end);
		resetTextClassificationHelper(indexResult[0], indexResult[1]);
		mTextClassificationAsyncTask = new TextClassificationAsyncTask(
		mTextView,
		mTextClassificationHelper.getTimeoutDuration(),
		@@ -172,19 +201,23 @@ public final class SelectionActionModeHelper {

		/** Reports a selection action event. */
		public void onSelectionAction(int menuItemId, @Nullable String actionLabel) {
		int[] sortedSelectionIndices = sortSelctionIndicesFromTextView(mTextView);
		mSelectionTracker.onSelectionAction(
		mTextView.getSelectionStart(), mTextView.getSelectionEnd(),
		sortedSelectionIndices[0], sortedSelectionIndices[1],
		getActionType(menuItemId), actionLabel, mTextClassification);
		}

		public void onSelectionDrag() {
		int[] sortedSelectionIndices = sortSelctionIndicesFromTextView(mTextView);
		mSelectionTracker.onSelectionAction(
		mTextView.getSelectionStart(), mTextView.getSelectionEnd(),
		sortedSelectionIndices[0], sortedSelectionIndices[1],
		SelectionEvent.ACTION_DRAG, /* actionLabel= */ null, mTextClassification);
		}

		public void onTextChanged(int start, int end) {
		mSelectionTracker.onTextChanged(start, end, mTextClassification);
		int[] sortedSelectionIndices = sortSelctionIndices(start, end);
		mSelectionTracker.onTextChanged(sortedSelectionIndices[0], sortedSelectionIndices[1],
		mTextClassification);
		}

		public boolean resetSelection(int textIndex) {
		@@ -301,10 +334,10 @@ public final class SelectionActionModeHelper {
		startSelectionActionMode(startSelectionResult);
		};
		// TODO do not trigger the animation if the change included only non-printable characters
		int[] sortedSelectionIndices = sortSelctionIndicesFromTextView(mTextView);
		final boolean didSelectionChange =
		result != null && (mTextView.getSelectionStart() != result.mStart
		\|\| mTextView.getSelectionEnd() != result.mEnd);

		result != null && (sortedSelectionIndices[0] != result.mStart
		\|\| sortedSelectionIndices[1] != result.mEnd);
		if (!didSelectionChange) {
		onAnimationEndCallback.run();
		return;
		@@ -453,16 +486,18 @@ public final class SelectionActionModeHelper {
		if (actionMode != null) {
		actionMode.invalidate();
		}
		final int[] sortedSelectionIndices = sortSelctionIndicesFromTextView(mTextView);
		mSelectionTracker.onSelectionUpdated(
		mTextView.getSelectionStart(), mTextView.getSelectionEnd(), mTextClassification);
		sortedSelectionIndices[0], sortedSelectionIndices[1], mTextClassification);
		mTextClassificationAsyncTask = null;
		}

		private void resetTextClassificationHelper(int selectionStart, int selectionEnd) {
		if (selectionStart < 0 \|\| selectionEnd < 0) {
		// Use selection indices
		selectionStart = mTextView.getSelectionStart();
		selectionEnd = mTextView.getSelectionEnd();
		int[] sortedSelectionIndices = sortSelctionIndicesFromTextView(mTextView);
		selectionStart = sortedSelectionIndices[0];
		selectionEnd = sortedSelectionIndices[1];
		}
		mTextClassificationHelper.init(
		mTextView::getTextClassifier,
		@@ -602,10 +637,11 @@ public final class SelectionActionModeHelper {
		mAllowReset = false;
		boolean selected = editor.selectCurrentWord();
		if (selected) {
		mSelectionStart = editor.getTextView().getSelectionStart();
		mSelectionEnd = editor.getTextView().getSelectionEnd();
		final int[] sortedSelectionIndices = sortSelctionIndicesFromTextView(textView);
		mSelectionStart = sortedSelectionIndices[0];
		mSelectionEnd = sortedSelectionIndices[1];
		mLogger.logSelectionAction(
		textView.getSelectionStart(), textView.getSelectionEnd(),
		sortedSelectionIndices[0], sortedSelectionIndices[1],
		SelectionEvent.ACTION_RESET,
		/* actionLabel= / null, / classification= */ null);
		}
		@@ -1178,8 +1214,9 @@ public final class SelectionActionModeHelper {

		SelectionResult(int start, int end,
		@Nullable TextClassification classification, @Nullable TextSelection selection) {
		mStart = start;
		mEnd = end;
		int[] sortedIndices = sortSelctionIndices(start, end);
		mStart = sortedIndices[0];
		mEnd = sortedIndices[1];
		mClassification = classification;
		mSelection = selection;
		}