| // Copyright (C) 2010 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 com.google.gerrit.client.ui; |
| |
| import com.google.gerrit.client.Gerrit; |
| import com.google.gwtexpui.safehtml.client.FindReplace; |
| import com.google.gwtexpui.safehtml.client.SafeHtml; |
| import com.google.gwtjsonrpc.common.AsyncCallback; |
| import com.google.gwtjsonrpc.common.VoidResult; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| public class CommentLinkProcessor { |
| private List<FindReplace> commentLinks; |
| |
| public CommentLinkProcessor(List<FindReplace> commentLinks) { |
| this.commentLinks = commentLinks; |
| } |
| |
| public SafeHtml apply(SafeHtml buf) { |
| try { |
| return buf.replaceAll(commentLinks); |
| } catch (RuntimeException err) { |
| // One or more of the patterns isn't valid on this browser. |
| // Try to filter the list down and remove the invalid ones. |
| |
| List<FindReplace> safe = new ArrayList<>(commentLinks.size()); |
| |
| List<PatternError> bad = new ArrayList<>(); |
| for (FindReplace r : commentLinks) { |
| try { |
| buf.replaceAll(Collections.singletonList(r)); |
| safe.add(r); |
| } catch (RuntimeException why) { |
| bad.add(new PatternError(r, why.getMessage())); |
| } |
| } |
| |
| if (!bad.isEmpty()) { |
| StringBuilder msg = new StringBuilder(); |
| msg.append("Invalid commentlink pattern(s):"); |
| for (PatternError e : bad) { |
| msg.append("\n"); |
| msg.append("\""); |
| msg.append(e.pattern.pattern().getSource()); |
| msg.append("\": "); |
| msg.append(e.errorMessage); |
| } |
| Gerrit.SYSTEM_SVC.clientError( |
| msg.toString(), |
| new AsyncCallback<VoidResult>() { |
| @Override |
| public void onFailure(Throwable caught) {} |
| |
| @Override |
| public void onSuccess(VoidResult result) {} |
| }); |
| } |
| |
| try { |
| commentLinks = safe; |
| return buf.replaceAll(safe); |
| } catch (RuntimeException err2) { |
| // To heck with it. The patterns passed individually above but |
| // failed as a group? Just render without. |
| // |
| commentLinks = null; |
| return buf; |
| } |
| } |
| } |
| |
| private static class PatternError { |
| FindReplace pattern; |
| String errorMessage; |
| |
| PatternError(FindReplace r, String w) { |
| pattern = r; |
| errorMessage = w; |
| } |
| } |
| } |