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1 | <?php |
2 | /** |
3 | * Mutable version of RevisionSlots, for constructing a new revision. |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 2 of the License, or |
8 | * (at your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | * GNU General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License along |
16 | * with this program; if not, write to the Free Software Foundation, Inc., |
17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
18 | * http://www.gnu.org/copyleft/gpl.html |
19 | * |
20 | * @file |
21 | */ |
22 | |
23 | namespace MediaWiki\Revision; |
24 | |
25 | use Content; |
26 | |
27 | /** |
28 | * Mutable version of RevisionSlots, for constructing a new revision. |
29 | * |
30 | * @since 1.31 |
31 | * @since 1.32 Renamed from MediaWiki\Storage\MutableRevisionSlots |
32 | */ |
33 | class MutableRevisionSlots extends RevisionSlots { |
34 | /** |
35 | * @var callable|null |
36 | */ |
37 | private $resetCallback; |
38 | |
39 | /** |
40 | * Constructs a MutableRevisionSlots that inherits from the given |
41 | * list of slots. |
42 | * |
43 | * @param SlotRecord[] $slots |
44 | * @param callable|null $resetCallback Callback to be triggered whenever slots change. |
45 | * Signature: function ( MutableRevisionSlots ): void. |
46 | * |
47 | * @return MutableRevisionSlots |
48 | */ |
49 | public static function newFromParentRevisionSlots( |
50 | array $slots, |
51 | ?callable $resetCallback = null |
52 | ) { |
53 | $inherited = []; |
54 | foreach ( $slots as $slot ) { |
55 | $role = $slot->getRole(); |
56 | $inherited[$role] = SlotRecord::newInherited( $slot ); |
57 | } |
58 | |
59 | return new MutableRevisionSlots( $inherited, $resetCallback ); |
60 | } |
61 | |
62 | /** |
63 | * @param SlotRecord[] $slots An array of SlotRecords. |
64 | * @param callable|null $resetCallback Callback to be triggered whenever slots change. |
65 | * Signature: function ( MutableRevisionSlots ): void. |
66 | */ |
67 | public function __construct( array $slots = [], ?callable $resetCallback = null ) { |
68 | // @phan-suppress-next-line PhanTypeInvalidCallableArraySize |
69 | parent::__construct( $slots ); |
70 | $this->resetCallback = $resetCallback; |
71 | } |
72 | |
73 | /** |
74 | * Sets the given slot. |
75 | * If a slot with the same role is already present, it is replaced. |
76 | * |
77 | * @param SlotRecord $slot |
78 | */ |
79 | public function setSlot( SlotRecord $slot ) { |
80 | if ( !is_array( $this->slots ) ) { |
81 | $this->getSlots(); // initialize $this->slots |
82 | } |
83 | |
84 | $role = $slot->getRole(); |
85 | $this->slots[$role] = $slot; |
86 | $this->triggerResetCallback(); |
87 | } |
88 | |
89 | /** |
90 | * Sets the given slot to an inherited version of $slot. |
91 | * If a slot with the same role is already present, it is replaced. |
92 | * |
93 | * @param SlotRecord $slot |
94 | */ |
95 | public function inheritSlot( SlotRecord $slot ) { |
96 | $this->setSlot( SlotRecord::newInherited( $slot ) ); |
97 | } |
98 | |
99 | /** |
100 | * Sets the content for the slot with the given role. |
101 | * If a slot with the same role is already present, it is replaced. |
102 | * |
103 | * @param string $role |
104 | * @param Content $content |
105 | */ |
106 | public function setContent( $role, Content $content ) { |
107 | $slot = SlotRecord::newUnsaved( $role, $content ); |
108 | $this->setSlot( $slot ); |
109 | } |
110 | |
111 | /** |
112 | * Remove the slot for the given role, discontinue the corresponding stream. |
113 | * |
114 | * @param string $role |
115 | */ |
116 | public function removeSlot( $role ) { |
117 | if ( !is_array( $this->slots ) ) { |
118 | $this->getSlots(); // initialize $this->slots |
119 | } |
120 | |
121 | unset( $this->slots[$role] ); |
122 | $this->triggerResetCallback(); |
123 | } |
124 | |
125 | /** |
126 | * Trigger the reset callback supplied to the constructor, if any. |
127 | */ |
128 | private function triggerResetCallback() { |
129 | if ( $this->resetCallback ) { |
130 | ( $this->resetCallback )( $this ); |
131 | } |
132 | } |
133 | |
134 | } |