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| 1 | +<?php |
| 2 | + |
| 3 | +/* |
| 4 | + * Copyright 2011 Facebook, Inc. |
| 5 | + * |
| 6 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | + * you may not use this file except in compliance with the License. |
| 8 | + * You may obtain a copy of the License at |
| 9 | + * |
| 10 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | + * |
| 12 | + * Unless required by applicable law or agreed to in writing, software |
| 13 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | + * See the License for the specific language governing permissions and |
| 16 | + * limitations under the License. |
| 17 | + */ |
| 18 | + |
| 19 | +/** |
| 20 | + * @group markup |
| 21 | + */ |
| 22 | +abstract class PhabricatorRemarkupRuleObjectHandle |
| 23 | + extends PhutilRemarkupRule { |
| 24 | + |
| 25 | + const KEY_RULE_HANDLE = 'rule.handle'; |
| 26 | + |
| 27 | + abstract protected function getObjectNamePrefix(); |
| 28 | + abstract protected function loadObjectPHID($id); |
| 29 | + |
| 30 | + public function apply($text) { |
| 31 | + $prefix = $this->getObjectNamePrefix(); |
| 32 | + return preg_replace_callback( |
| 33 | + "@\B{{$prefix}(\d+)}\B@", |
| 34 | + array($this, 'markupObjectHandle'), |
| 35 | + $text); |
| 36 | + } |
| 37 | + |
| 38 | + private function markupObjectHandle($matches) { |
| 39 | + // TODO: These are single gets but should be okay for now, they're behind |
| 40 | + // the cache. |
| 41 | + $phid = $this->loadObjectPHID($matches[1]); |
| 42 | + if (!$phid) { |
| 43 | + return $matches[0]; |
| 44 | + } |
| 45 | + |
| 46 | + $engine = $this->getEngine(); |
| 47 | + $token = $engine->storeText(''); |
| 48 | + |
| 49 | + $metadata_key = self::KEY_RULE_HANDLE; |
| 50 | + $metadata = $engine->getTextMetadata($metadata_key, array()); |
| 51 | + if (empty($metadata[$phid])) { |
| 52 | + $metadata[$phid] = array(); |
| 53 | + } |
| 54 | + $metadata[$phid][] = $token; |
| 55 | + $engine->setTextMetadata($metadata_key, $metadata); |
| 56 | + |
| 57 | + return $token; |
| 58 | + } |
| 59 | + |
| 60 | + public function didMarkupText() { |
| 61 | + $engine = $this->getEngine(); |
| 62 | + |
| 63 | + $metadata_key = self::KEY_RULE_HANDLE; |
| 64 | + $metadata = $engine->getTextMetadata($metadata_key, array()); |
| 65 | + if (empty($metadata)) { |
| 66 | + return; |
| 67 | + } |
| 68 | + |
| 69 | + $handles = id(new PhabricatorObjectHandleData(array_keys($metadata))) |
| 70 | + ->loadHandles(); |
| 71 | + |
| 72 | + foreach ($metadata as $phid => $tokens) { |
| 73 | + $link = $handles[$phid]->renderLink(); |
| 74 | + foreach ($tokens as $token) { |
| 75 | + $engine->overwriteStoredText($token, $link); |
| 76 | + } |
| 77 | + } |
| 78 | + |
| 79 | + $engine->setTextMetadata($metadata_key, array()); |
| 80 | + } |
| 81 | + |
| 82 | +} |
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