mediawiki-extensions-Discus.../modules/controller.js

380 lines
12 KiB
JavaScript

'use strict';
var
$pageContainer,
Parser = require( './Parser.js' ),
ThreadItem = require( './ThreadItem.js' ),
logger = require( './logger.js' ),
pageDataCache = {};
mw.messages.set( require( './controller/contLangMessages.json' ) );
function getApi() {
return new mw.Api( {
parameters: {
formatversion: 2,
uselang: mw.config.get( 'wgUserLanguage' )
}
} );
}
function highlight( comment ) {
var padding = 5,
// $container must be position:relative/absolute
$container = OO.ui.getDefaultOverlay(),
containerRect = $container[ 0 ].getBoundingClientRect(),
rect = RangeFix.getBoundingClientRect( comment.getNativeRange() ),
$highlight = $( '<div>' ).addClass( 'dt-init-highlight' );
$highlight.css( {
top: rect.top - containerRect.top - padding,
left: rect.left - containerRect.left - padding,
width: rect.width + ( padding * 2 ),
height: rect.height + ( padding * 2 )
} );
$container.prepend( $highlight );
OO.ui.Element.static.scrollIntoView( $highlight[ 0 ], { padding: { top: 10, bottom: 10 } } ).then( function () {
setTimeout( function () {
$highlight.addClass( 'dt-init-highlight-fade' );
setTimeout( function () {
$highlight.remove();
}, 500 );
}, 500 );
} );
}
/**
* Get various pieces of page metadata.
*
* This method caches responses. If you call it again with the same parameters, you'll get the exact
* same Promise object, and no API request will be made.
*
* @param {string} pageName Page title
* @param {number} oldId Revision ID
* @return {jQuery.Promise}
*/
function getPageData( pageName, oldId ) {
var lintPromise, transcludedFromPromise, veMetadataPromise,
api = getApi();
pageDataCache[ pageName ] = pageDataCache[ pageName ] || {};
if ( pageDataCache[ pageName ][ oldId ] ) {
return pageDataCache[ pageName ][ oldId ];
}
if ( oldId ) {
lintPromise = api.get( {
action: 'query',
list: 'linterrors',
lntcategories: 'fostered',
lntlimit: 1,
lnttitle: pageName
} ).then( function ( response ) {
return OO.getProp( response, 'query', 'linterrors' ) || [];
} );
transcludedFromPromise = api.get( {
action: 'discussiontools',
paction: 'transcludedfrom',
page: pageName,
oldid: oldId
} ).then( function ( response ) {
return OO.getProp( response, 'discussiontools' ) || {};
} );
} else {
lintPromise = $.Deferred().resolve( [] ).promise();
transcludedFromPromise = $.Deferred().resolve( {} ).promise();
}
veMetadataPromise = api.get( {
action: 'visualeditor',
paction: 'metadata',
page: pageName
} ).then( function ( response ) {
return OO.getProp( response, 'visualeditor' ) || [];
} );
pageDataCache[ pageName ][ oldId ] = $.when( lintPromise, transcludedFromPromise, veMetadataPromise )
.then( function ( linterrors, transcludedfrom, metadata ) {
return {
linterrors: linterrors,
transcludedfrom: transcludedfrom,
metadata: metadata
};
}, function () {
// Clear on failure
pageDataCache[ pageName ][ oldId ] = null;
// Let caller handle the error
return $.Deferred().rejectWith( this, arguments );
} );
return pageDataCache[ pageName ][ oldId ];
}
/**
* Check if a given comment on a page can be replied to
*
* @param {string} pageName Page title
* @param {number} oldId Revision ID
* @param {string} commentId Comment ID
* @return {jQuery.Promise} Resolves with the pageName+oldId if the comment appears on the page.
* Rejects with error data if the comment is transcluded, or there are lint errors on the page.
*/
function checkCommentOnPage( pageName, oldId, commentId ) {
return getPageData( pageName, oldId )
.then( function ( response ) {
var isTranscludedFrom, transcludedErrMsg, mwTitle, follow,
lintType,
lintErrors = response.linterrors,
transcludedFrom = response.transcludedfrom;
isTranscludedFrom = transcludedFrom[ commentId ];
if ( isTranscludedFrom === undefined ) {
// The comment wasn't found when generating the "transcludedfrom" data,
// so we don't know where the reply should be posted. Just give up.
return $.Deferred().reject( 'discussiontools-commentid-notfound-transcludedfrom', { errors: [ {
code: 'discussiontools-commentid-notfound-transcludedfrom',
html: mw.message( 'discussiontools-error-comment-disappeared' ).parse()
} ] } ).promise();
} else if ( isTranscludedFrom ) {
mwTitle = isTranscludedFrom === true ? null : mw.Title.newFromText( isTranscludedFrom );
// If this refers to a template rather than a subpage, we never want to edit it
follow = mwTitle && mwTitle.getNamespaceId() !== mw.config.get( 'wgNamespaceIds' ).template;
if ( follow ) {
transcludedErrMsg = mw.message(
'discussiontools-error-comment-is-transcluded-title',
mwTitle.getPrefixedText()
).parse();
} else {
transcludedErrMsg = mw.message(
'discussiontools-error-comment-is-transcluded',
// eslint-disable-next-line no-jquery/no-global-selector
$( '#ca-edit' ).text()
).parse();
}
return $.Deferred().reject( 'comment-is-transcluded', { errors: [ {
data: {
transcludedFrom: isTranscludedFrom,
follow: follow
},
code: 'comment-is-transcluded',
html: transcludedErrMsg
} ] } ).promise();
}
if ( lintErrors.length ) {
// We currently only request the first error
lintType = lintErrors[ 0 ].category;
return $.Deferred().reject( 'lint', { errors: [ {
code: 'lint',
html: mw.message( 'discussiontools-error-lint',
'https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Lint_errors/' + lintType,
'https://www.mediawiki.org/wiki/Special:MyLanguage/Help_talk:Lint_errors/' + lintType,
mw.util.getUrl( pageName, { action: 'edit', lintid: lintErrors[ 0 ].lintId } ) ).parse()
} ] } ).promise();
}
return {
pageName: pageName,
oldId: oldId
};
} );
}
function getCheckboxesPromise( pageName, oldId ) {
return getPageData(
pageName,
oldId
).then( function ( pageData ) {
var data = pageData.metadata,
checkboxesDef = {};
mw.messages.set( data.checkboxesMessages );
// Only show the watch checkbox for now
if ( 'wpWatchthis' in data.checkboxesDef ) {
checkboxesDef.wpWatchthis = data.checkboxesDef.wpWatchthis;
}
// targetLoader was loaded by getPageData
return mw.libs.ve.targetLoader.createCheckboxFields( checkboxesDef );
// TODO: createCheckboxField doesn't make links in the label open in a new
// window as that method currently lives in ve.utils
} );
}
function init( $container, state ) {
var parser, pageThreads,
repliedToComment,
i, hash, comment, commentNodes, newId,
// Loads later to avoid circular dependency
CommentController = require( './CommentController.js' ),
threadItemsById = {},
threadItems = [];
$pageContainer = $container;
parser = new Parser( $pageContainer[ 0 ] );
pageThreads = [];
commentNodes = $pageContainer[ 0 ].querySelectorAll( '[data-mw-comment]' );
threadItems.length = commentNodes.length;
// The page can be served from the HTTP cache (Varnish), containing data-mw-comment generated
// by an older version of our PHP code. Code below must be able to handle that.
// See CommentFormatter::addReplyLinks() in PHP.
// Iterate over commentNodes backwards so replies are always deserialized before their parents.
for ( i = commentNodes.length - 1; i >= 0; i-- ) {
hash = JSON.parse( commentNodes[ i ].getAttribute( 'data-mw-comment' ) );
comment = ThreadItem.static.newFromJSON( hash, threadItemsById );
threadItemsById[ comment.id ] = comment;
if ( comment.type === 'comment' ) {
// eslint-disable-next-line no-new
new CommentController( $pageContainer, $( commentNodes[ i ] ), comment );
} else {
// Use unshift as we are in a backwards loop
pageThreads.unshift( comment );
}
threadItems[ i ] = comment;
}
// Recalculate legacy IDs
parser.threadItemsById = {};
// In the forward order this time, as the IDs for indistinguishable comments depend on it
for ( i = 0; i < threadItems.length; i++ ) {
comment = threadItems[ i ];
newId = parser.computeId( comment );
parser.threadItemsById[ newId ] = comment;
if ( newId !== comment.id ) {
comment.id = newId;
threadItemsById[ newId ] = comment;
}
}
// For debugging (now unused in the code)
mw.dt.pageThreads = pageThreads;
if ( state.repliedTo ) {
// Find the comment we replied to, then highlight the last reply
repliedToComment = threadItemsById[ state.repliedTo ];
highlight( repliedToComment.replies[ repliedToComment.replies.length - 1 ] );
}
// Preload page metadata.
// TODO: Isn't this too early to load it? We will only need it if the user tries replying...
getPageData(
mw.config.get( 'wgRelevantPageName' ),
mw.config.get( 'wgCurRevisionId' )
);
}
function update( data, comment, pageName, replyWidget ) {
var watch,
api = getApi(),
pageUpdated = $.Deferred();
// We posted a new comment, clear the cache, because wgCurRevisionId will not change if we posted
// to a transcluded page (T266275)
pageDataCache[ mw.config.get( 'wgRelevantPageName' ) ][ mw.config.get( 'wgCurRevisionId' ) ] = null;
replyWidget.teardown();
// TODO: Tell controller to teardown all other open widgets
// Update page state
if ( pageName === mw.config.get( 'wgRelevantPageName' ) ) {
// We can use the result from the VisualEditor API
$pageContainer.html( data.content );
mw.config.set( {
wgCurRevisionId: data.newrevid,
wgRevisionId: data.newrevid
} );
mw.config.set( data.jsconfigvars );
// Note: VE API merges 'modules' and 'modulestyles'
mw.loader.load( data.modules );
// TODO update categories, displaytitle, lastmodified
// (see ve.init.mw.DesktopArticleTarget.prototype.replacePageContent)
pageUpdated.resolve();
} else {
// We saved to another page, we must purge and then fetch the current page
api.post( {
action: 'purge',
titles: mw.config.get( 'wgRelevantPageName' )
} ).then( function () {
return api.get( {
action: 'parse',
// HACK: 'useskin' triggers a different code path that runs our OutputPageBeforeHTML hook,
// adding our reply links in the HTML (T266195)
useskin: mw.config.get( 'skin' ),
uselang: mw.config.get( 'wgUserLanguage' ),
// HACK: Always display reply links afterwards, ignoring preferences etc., in case this was
// a page view with reply links forced with ?dtenable=1 or otherwise
dtenable: '1',
prop: [ 'text', 'modules', 'jsconfigvars' ],
page: mw.config.get( 'wgRelevantPageName' )
} );
} ).then( function ( parseResp ) {
$pageContainer.html( parseResp.parse.text );
mw.config.set( parseResp.parse.jsconfigvars );
mw.loader.load( parseResp.parse.modulestyles );
mw.loader.load( parseResp.parse.modules );
// TODO update categories, displaytitle, lastmodified
// We may not be able to use prop=displaytitle without making changes in the action=parse API,
// VE API has some confusing code that changes the HTML escaping on it before returning???
pageUpdated.resolve();
} ).catch( function () {
// We saved the reply, but couldn't purge or fetch the updated page. Seems difficult to
// explain this problem. Redirect to the page where the user can at least see their reply…
window.location = mw.util.getUrl( pageName );
} );
}
// User logged in if module loaded.
if ( mw.loader.getState( 'mediawiki.page.watch.ajax' ) === 'ready' ) {
watch = require( 'mediawiki.page.watch.ajax' );
watch.updateWatchLink(
// eslint-disable-next-line no-jquery/no-global-selector
$( '#ca-watch a, #ca-unwatch a' ),
data.watched ? 'unwatch' : 'watch',
'idle',
data.watchlistexpiry
);
}
pageUpdated.then( function () {
// Re-initialize and highlight the new reply.
mw.dt.initState.repliedTo = comment.id;
// We need our init code to run after everyone else's handlers for this hook,
// so that all changes to the page layout have been completed (e.g. collapsible elements),
// and we can measure things and display the highlight in the right place.
mw.hook( 'wikipage.content' ).remove( mw.dt.init );
mw.hook( 'wikipage.content' ).fire( $pageContainer );
// The hooks have "memory" so calling add() after fire() actually fires the handler,
// and calling add() before fire() would actually fire it twice.
mw.hook( 'wikipage.content' ).add( mw.dt.init );
logger( {
action: 'saveSuccess',
// eslint-disable-next-line camelcase
revision_id: data.newrevid
} );
} );
}
module.exports = {
init: init,
update: update,
checkCommentOnPage: checkCommentOnPage,
getCheckboxesPromise: getCheckboxesPromise,
getApi: getApi
};