*/
const DIFF_VERSION = '1.12';
- /** @var int Revision ID or 0 for current */
+ /**
+ * Revision ID for the old revision. 0 for the revision previous to $mNewid, false
+ * if the diff does not have an old revision (e.g. 'oldid=<first revision of page>&diff=prev'),
+ * or the revision does not exist, null if the revision is unsaved.
+ * @var int|false|null
+ */
protected $mOldid;
- /** @var int|string Revision ID or null for current or an alias such as 'next' */
+ /**
+ * Revision ID for the new revision. 0 for the last revision of the current page
+ * (as defined by the request context), false if the revision does not exist, null
+ * if it is unsaved, or an alias such as 'next'.
+ * @var int|string|false|null
+ */
protected $mNewid;
- private $mOldTags;
- private $mNewTags;
-
/**
* Old revision (left pane).
* Allowed to be an unsaved revision, unlikely that's ever needed though.
- * Null when the old revision does not exist; this can happen when using
- * diff=prev on the first revision.
+ * False when the old revision does not exist; this can happen when using
+ * diff=prev on the first revision. Null when the revision should exist but
+ * doesn't (e.g. load failure); loadRevisionData() will return false in that
+ * case. Also null until lazy-loaded. Ignored completely when isContentOverridden
+ * is set.
* Since 1.32 public access is deprecated.
- * @var Revision|null
+ * @var Revision|null|false
*/
protected $mOldRev;
/**
* New revision (right pane).
* Note that this might be an unsaved revision (e.g. for edit preview).
- * Null only in case of load failure; diff methods will just return an error message in that case.
+ * Null in case of load failure; diff methods will just return an error message in that case,
+ * and loadRevisionData() will return false. Also null until lazy-loaded. Ignored completely
+ * when isContentOverridden is set.
* Since 1.32 public access is deprecated.
* @var Revision|null
*/
*/
protected $mNewPage;
+ /**
+ * Change tags of $mOldRev or null if it does not exist / is not saved.
+ * @var string[]|null
+ */
+ private $mOldTags;
+
+ /**
+ * Change tags of $mNewRev or null if it does not exist / is not saved.
+ * @var string[]|null
+ */
+ private $mNewTags;
+
/**
* @var Content|null
* @deprecated since 1.32, content slots are now handled by the corresponding SlotDiffRenderer.
/**
* Get the old and new content objects for all slots.
* This method does not do any permission checks.
- * @return array [ role => [ 'old' => SlotRecord, 'new' => SlotRecord ], ... ]
+ * @return array [ role => [ 'old' => SlotRecord|null, 'new' => SlotRecord|null ], ... ]
*/
protected function getSlotContents() {
if ( $this->isContentOverridden ) {
'new' => $this->mNewContent,
]
];
+ } elseif ( !$this->loadRevisionData() ) {
+ return [];
}
- $oldRev = $this->mOldRev->getRevisionRecord();
- $newRev = $this->mNewRev->getRevisionRecord();
+ $newSlots = $this->mNewRev->getRevisionRecord()->getSlots()->getSlots();
+ if ( $this->mOldRev ) {
+ $oldSlots = $this->mOldRev->getRevisionRecord()->getSlots()->getSlots();
+ } else {
+ $oldSlots = [];
+ }
// The order here will determine the visual order of the diff. The current logic is
- // changed first, then added, then deleted. This is ad hoc and should not be relied on
- // - in the future we may want the ordering to depend on the page type.
- $roles = array_merge( $newRev->getSlotRoles(), $oldRev->getSlotRoles() );
- $oldSlots = $oldRev->getSlots()->getSlots();
- $newSlots = $newRev->getSlots()->getSlots();
+ // slots of the new revision first in natural order, then deleted ones. This is ad hoc
+ // and should not be relied on - in the future we may want the ordering to depend
+ // on the page type.
+ $roles = array_merge( array_keys( $newSlots ), array_keys( $oldSlots ) );
$slots = [];
foreach ( $roles as $role ) {
return $slots;
}
+ public function getTitle() {
+ // T202454 avoid errors when there is no title
+ return parent::getTitle() ?: Title::makeTitle( NS_SPECIAL, 'BadTitle/DifferenceEngine' );
+ }
+
/**
* Set reduced line numbers mode.
* When set, line X is not displayed when X is 1, for example to increase readability and
}
/**
- * @return int
+ * Get the ID of old revision (left pane) of the diff. 0 for the revision
+ * previous to getNewid(), false if the old revision does not exist, null
+ * if it's unsaved.
+ * To get a real revision ID instead of 0, call loadRevisionData() first.
+ * @return int|false|null
*/
public function getOldid() {
$this->loadRevisionIds();
}
/**
- * @return bool|int
+ * Get the ID of new revision (right pane) of the diff. 0 for the current revision,
+ * false if the new revision does not exist, null if it's unsaved.
+ * To get a real revision ID instead of 0, call loadRevisionData() first.
+ * @return int|false|null
*/
public function getNewid() {
$this->loadRevisionIds();
return $difftext;
}
+ /**
+ * Get the diff table body for one slot, without header
+ *
+ * @param string $role
+ * @return string|false
+ */
+ public function getDiffBodyForRole( $role ) {
+ $diffRenderers = $this->getSlotDiffRenderers();
+ if ( !isset( $diffRenderers[$role] ) ) {
+ return false;
+ }
+
+ $slotContents = $this->getSlotContents();
+ $slotDiff = $diffRenderers[$role]->getDiff( $slotContents[$role]['old'],
+ $slotContents[$role]['new'] );
+ if ( !$slotDiff ) {
+ return false;
+ }
+
+ if ( $role !== 'main' ) {
+ // TODO use human-readable role name at least
+ $slotTitle = $role;
+ $slotDiff = $this->getSlotHeader( $slotTitle ) . $slotDiff;
+ }
+
+ return $this->localiseDiff( $slotDiff );
+ }
+
/**
* Get a slot header for inclusion in a diff body (as a table row).
*
$this->mOldContent = $oldRevision ? $oldRevision->getContent( 'main',
RevisionRecord::FOR_THIS_USER, $this->getUser() ) : null;
} else {
- $this->mOldRev = $this->mOldid = $this->mOldPage = null;
+ $this->mOldPage = null;
+ $this->mOldRev = $this->mOldid = false;
}
$this->mNewRev = new Revision( $newRevision );
$this->mNewid = $newRevision->getId();
* @param int $old Revision id, e.g. from URL parameter 'oldid'
* @param int|string $new Revision id or strings 'next' or 'prev', e.g. from URL parameter 'diff'
*
- * @return int[] List of two revision ids, older first, later second.
+ * @return array List of two revision ids, older first, later second.
* Zero signifies invalid argument passed.
* false signifies that there is no previous/next revision ($old is the oldest/newest one).
*/
}
/**
- * Load revision metadata for the specified articles. If newid is 0, then compare
- * the old article in oldid to the current article; if oldid is 0, then
- * compare the current article to the immediately previous one (ignoring the
- * value of newid).
+ * Load revision metadata for the specified revisions. If newid is 0, then compare
+ * the old revision in oldid to the current revision of the current page (as defined
+ * by the request context); if oldid is 0, then compare the revision in newid to the
+ * immediately previous one.
*
* If oldid is false, leave the corresponding revision object set
- * to false. This is impossible via ordinary user input, and is provided for
- * API convenience.
+ * to false. This can happen with 'diff=prev' pointing to a non-existent revision,
+ * and is also used directly by the API.
*
- * @return bool Whether both revisions were loaded successfully.
+ * @return bool Whether both revisions were loaded successfully. Setting mOldRev
+ * to false counts as successful loading.
*/
public function loadRevisionData() {
if ( $this->mRevisionsLoaded ) {
- return $this->isContentOverridden || $this->mNewRev && $this->mOldRev;
+ return $this->isContentOverridden || $this->mNewRev && !is_null( $this->mOldRev );
}
// Whether it succeeds or fails, we don't want to try again
/**
* Load the text of the revisions, as well as revision data.
+ * When the old revision is missing (mOldRev is false), loading mOldContent is not attempted.
*
* @return bool Whether the content of both revisions could be loaded successfully.
+ * (When mOldRev is false, that still counts as a success.)
+ *
*/
public function loadText() {
if ( $this->mTextLoaded == 2 ) {
- return $this->loadRevisionData() && $this->mOldContent && $this->mNewContent;
+ return $this->loadRevisionData() && ( $this->mOldRev === false || $this->mOldContent )
+ && $this->mNewContent;
}
// Whether it succeeds or fails, we don't want to try again
}
}
- if ( $this->mNewRev ) {
- $this->mNewContent = $this->mNewRev->getContent( Revision::FOR_THIS_USER, $this->getUser() );
- Hooks::run( 'DifferenceEngineLoadTextAfterNewContentIsLoaded', [ $this ] );
- if ( $this->mNewContent === null ) {
- return false;
- }
+ $this->mNewContent = $this->mNewRev->getContent( Revision::FOR_THIS_USER, $this->getUser() );
+ Hooks::run( 'DifferenceEngineLoadTextAfterNewContentIsLoaded', [ $this ] );
+ if ( $this->mNewContent === null ) {
+ return false;
}
return true;
dépôts / lhc / web / wiklou.git / commitdiff