| /* |
| * Copyright 2010 Google Inc. |
| * |
| * 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 com.google.gwt.i18n.shared; |
| |
| import com.google.gwt.i18n.client.HasDirection.Direction; |
| import com.google.gwt.safehtml.shared.SafeHtml; |
| |
| /** |
| * Interface for direction estimators. |
| */ |
| public abstract class DirectionEstimator { |
| |
| /** |
| * Estimates the direction of a plain-text string. |
| * |
| * @param str The string to check. |
| * @return {@code str}'s estimated direction. |
| */ |
| public abstract Direction estimateDirection(String str); |
| |
| /** |
| * Estimates the direction of a string. |
| * |
| * @param str The string to check. |
| * @param isHtml Whether {@code str} is HTML / HTML-escaped. {@code false} |
| * means that {@code str} is plain-text. |
| * @return {@code str}'s estimated direction. |
| */ |
| public Direction estimateDirection(String str, boolean isHtml) { |
| return estimateDirection(BidiUtils.get().stripHtmlIfNeeded(str, isHtml)); |
| } |
| |
| /** |
| * Estimates the direction of a SafeHtml. |
| * |
| * @param html The string to check. |
| * @return {@code html}'s estimated direction. |
| */ |
| public Direction estimateDirection(SafeHtml html) { |
| return estimateDirection(BidiUtils.get().stripHtmlIfNeeded(html.asString(), |
| true)); |
| } |
| } |