mediawiki-extensions-Echo/modules/viewmodel/mw.echo.dm.NotificationsModel.js

745 lines
22 KiB
JavaScript

( function ( mw, $ ) {
/**
* Notification view model
*
* @class
* @mixins OO.EventEmitter
*
* @constructor
* @param {mw.echo.dm.NetworkHandler} networkHandler Network handler
* @param {Object} [config] Configuration object
* @cfg {string} [id] Model id, used to refer to the model specifically.
* Falls back to the model's unique source
* @cfg {string} [title=''] An optional title for the model. This is mostly used
* for nested bundled models inside group items.
* @cfg {string|string[]} [type='alert'] Notification type 'alert', 'message'
* or an array [ 'alert', 'message' ]
* @cfg {string} [source='local'] Model source, 'local' or some symbolic name identifying
* the source of the notification items for the network handler.
* @cfg {number} [limit=25] Notification limit
* @cfg {string} [userLang] User language
* @cfg {boolean} [foreign] The model's source is foreign
* @cfg {boolean} [removeReadNotifications=false] Remove read notifications completely. This
* means the model will only contain unread notifications. This is useful for
* cross-wiki bundled notifications.
*/
mw.echo.dm.NotificationsModel = function MwEchoDmNotificationsModel( networkHandler, config ) {
config = config || {};
// Mixin constructor
OO.EventEmitter.call( this );
// Mixin constructor
mw.echo.dm.SortedList.call( this );
this.type = config.type || 'alert';
this.source = config.source || 'local';
this.id = config.id || this.source;
this.title = config.title || '';
this.markingAllAsRead = false;
this.autoMarkReadInProcess = false;
this.removeReadNotifications = !!config.removeReadNotifications;
this.foreign = !!config.foreign;
this.networkHandler = networkHandler;
this.seenTime = mw.config.get( 'wgEchoSeenTime' ) || {};
// Store references to unseen and unread notifications
this.unseenNotifications = new mw.echo.dm.NotificationList();
this.unreadNotifications = new mw.echo.dm.NotificationList();
// Events
this.aggregate( {
seen: 'itemSeen',
read: 'itemRead',
empty: 'itemGroupEmpty',
groupItemRead: 'unreadChange'
} );
this.connect( this, {
itemSeen: 'onItemSeen',
itemRead: 'onItemRead',
itemGroupEmpty: 'onItemGroupEmpty'
} );
this.setSortingCallback( function ( a, b ) {
var diff;
if ( !a.isRead() && b.isRead() ) {
return -1; // Unread items are always above read items
} else if ( a.isRead() && !b.isRead() ) {
return 1;
} else if ( !a.isForeign() && b.isForeign() ) {
return -1;
} else if ( a.isForeign() && !b.isForeign() ) {
return 1;
} else {
// Reverse sorting
diff = Number( b.getTimestamp() ) - Number( a.getTimestamp() );
if ( diff !== 0 ) {
return diff;
}
// Fallback on IDs
return b.getId() - a.getId();
}
} );
};
/* Initialization */
OO.initClass( mw.echo.dm.NotificationsModel );
OO.mixinClass( mw.echo.dm.NotificationsModel, OO.EventEmitter );
OO.mixinClass( mw.echo.dm.NotificationsModel, mw.echo.dm.SortedList );
/* Events */
/**
* @event updateSeenTime
*
* Seen time has been updated
*/
/**
* @event unseenChange
* @param {mw.echo.dm.NotificationItem} items An array of the unseen items
*
* Items' seen status has changed
*/
/**
* @event unreadChange
* @param {mw.echo.dm.NotificationItem} items An array of the unread items
*
* Items' read status has changed
*/
/**
* @event allRead
*
* All items are marked as read
*/
/**
* @event empty
*
* The model is empty
*/
/**
* @event done
* @param {boolean} success The operation is successful
* @param {Object} result The result of the operation. For success, the
* result includes the ids of the items. For failures, the result
* includes the error code from the failed API request
* @param {string[]} [result.ids] An array of notification IDs that were
* fetched from the API. This only appears on success.
* @param {string} [result.errCode] The error code from the API.
* This only appears on failure.
* @param {Object} [result.errObj] The error object from the API.
* This only appears on failure.
*
* The process of fetching notifications from the API has finished
*/
/* Methods */
/**
* Respond to item seen state change
*
* @param {mw.echo.dm.NotificationItem} item Notification item
* @param {boolean} isSeen Notification is seen
* @fires unseenChange
*/
mw.echo.dm.NotificationsModel.prototype.onItemSeen = function ( item, isSeen ) {
var id = item && item.getId(),
unseenItem = id && this.unseenNotifications.getItemById( id );
if ( unseenItem ) {
if ( isSeen ) {
this.unseenNotifications.removeItems( [ unseenItem ] );
} else {
this.unseenNotifications.addItems( [ unseenItem ] );
}
this.emit( 'unseenChange', this.unseenNotifications.getItems() );
}
};
/**
* Respond to item read state change
*
* @param {mw.echo.dm.NotificationItem} item Notification item
* @param {boolean} isRead Notification is read
* @fires unreadChange
*/
mw.echo.dm.NotificationsModel.prototype.onItemRead = function ( item, isRead ) {
var id = item && item.getId(),
unreadItem = id && this.unreadNotifications.getItemById( id );
// Update unread status and emit events
if ( unreadItem ) {
if ( isRead ) {
// We are skipping "mark as read" when the operation is "mark all read"
// because the API takes a single request to mark all notifications
// as read, and we don't need to send multiple individual requests.
if ( !this.markingAllAsRead ) {
this.markItemReadInApi( id );
}
if ( this.removeReadNotifications ) {
// Remove this notification from the model
this.removeItems( [ unreadItem ] );
}
// Remove the item from the counter after all other operations
// finished, since some of the operations check if there are any
// unread notifications to begin with.
this.unreadNotifications.removeItems( [ unreadItem ] );
} else {
this.unreadNotifications.addItems( [ unreadItem ] );
}
this.emit( 'unreadChange', this.unreadNotifications.getItems() );
}
if ( this.unreadNotifications.isEmpty() ) {
this.emit( 'allRead' );
}
if ( !this.countUnreadTalkPageNotifications() ) {
this.emit( 'allTalkRead' );
}
};
/**
* Respond to grouped item being empty
*
* @param {mw.echo.dm.NotificationItem} item Group item
*/
mw.echo.dm.NotificationsModel.prototype.onItemGroupEmpty = function ( item ) {
// TODO: When we have other types of bundles, we should check how to handle
// empty bundles (and bundles with only 1 item left)
// In this case, the notification is a "cross wiki" notification, which
// goes away when it is empty
this.removeItems( [ item ] );
this.emit( 'unreadChange' );
};
/**
* Count the unread messages that originate from the user talk page.
*
* @return {number} Number of unread talk page messages
*/
mw.echo.dm.NotificationsModel.prototype.countUnreadTalkPageNotifications = function () {
var i, len,
talk = 0,
items = this.unreadNotifications.getItems();
for ( i = 0, len = items.length; i < len; i++ ) {
if ( items[ i ].getCategory() === 'edit-user-talk' ) {
talk++;
}
}
return talk;
};
/**
* Get the type of the notifications that this model deals with.
* Notifications types can be 'alert', 'message' or an array of both.
*
* @return {string|string[]} Notifications type
*/
mw.echo.dm.NotificationsModel.prototype.getType = function () {
return this.type;
};
/**
* Get the counter of how many notifications are unseen
*
* @return {number} Number of unseen notifications
*/
mw.echo.dm.NotificationsModel.prototype.getUnseenCount = function () {
return this.unseenNotifications.getNotificationCount();
};
/**
* Get the counter of how many notifications are unread
*
* @return {number} Number of unread notifications
*/
mw.echo.dm.NotificationsModel.prototype.getUnreadCount = function () {
return this.unreadNotifications.getNotificationCount();
};
/**
* Get the counter of how many regular, non bundled notifications are unread
*
* @return {number} Number of non bundled unread notifications
*/
mw.echo.dm.NotificationsModel.prototype.getNonbundledUnreadCount = function () {
var i,
nonBundleItems = 0,
items = this.getItems();
for ( i = 0; i < items.length; i++ ) {
if (
!( items[ i ] instanceof mw.echo.dm.NotificationGroupItem ) &&
!items[ i ].isRead()
) {
nonBundleItems++;
}
}
return nonBundleItems;
};
/**
* Set the system seen time - the last time we've marked notification as seen
*
* @private
* @param {string} Mediawiki seen timestamp in Mediawiki timestamp format
*/
mw.echo.dm.NotificationsModel.prototype.setSeenTime = function ( time ) {
var i,
type = $.isArray( this.type ) ? this.type : [ this.type ];
for ( i = 0; i < type.length; i++ ) {
// Update all types
this.seenTime[ type[ i ] ] = time;
}
};
/**
* Get the system seen time
*
* @param {string} [type] Notification type
* @return {string} Mediawiki seen timestamp in Mediawiki timestamp format
*/
mw.echo.dm.NotificationsModel.prototype.getSeenTime = function ( type ) {
type = type || ( $.isArray( this.type ) ? this.type[ 0 ] : this.type );
return this.seenTime[ type ];
};
/**
* Update the seen timestamp
*
* @param {string|string[]} [type] Notification type
* @return {jQuery.Promise} A promise that resolves with the seen timestamp
* @fires updateSeenTime
*/
mw.echo.dm.NotificationsModel.prototype.updateSeenTime = function ( type ) {
var i, len, promise,
items = this.unseenNotifications.getItems();
type = type || this.type;
// Update the notifications seen status
for ( i = 0, len = items.length; i < len; i++ ) {
items[ i ].toggleSeen( true );
}
this.emit( 'updateSeenTime' );
// Only update seenTime in the API locally
if ( !this.isForeign() ) {
promise = this.getApi().updateSeenTime( type );
} else {
promise = $.Deferred().resolve();
}
return promise
.then( this.setSeenTime.bind( this ) );
};
/**
* Mark all notifications as read
*
* @return {jQuery.Promise} A promise that resolves when all notifications
* were marked as read.
* @fires empty
*/
mw.echo.dm.NotificationsModel.prototype.markAllRead = function () {
var i, len,
items = this.unreadNotifications.getItems(),
length = items.length;
// Skip if this is an automatic "mark as read" and this model is
// external
if ( this.external && this.autoMarkReadInProcess ) {
return $.Deferred().resolve( 0 ).promise();
}
// In some cases our model is empty out of technicalities -- that is,
// we didn't fetch its items yet. In that case, when markAllRead is
// called, we should emit the empty event (that would have been
// emitted if there were items that were then marked as read and removed)
// and return a resolved promise
if ( length === 0 ) {
if ( this.removeReadNotifications ) {
this.emit( 'empty' );
}
return $.Deferred().resolve( 0 ).promise();
}
this.markingAllAsRead = true;
for ( i = 0, len = items.length; i < len; i++ ) {
// Skip items that are external if we are in automatic 'mark all as read'
if ( !items[ i ].isForeign() || !this.autoMarkReadInProcess ) {
items[ i ].toggleRead( true );
items[ i ].toggleSeen( true );
this.unreadNotifications.removeItems( [ items[ i ] ] );
}
}
this.markingAllAsRead = false;
return this.getApi().markAllRead();
};
/**
* Trigger an automatic mark all notifications as read. It's important to mark
* this process as an automatic one, because there are several cases where we
* don't want to mark specific notifications as automatically read (like external
* group items)
*
* @return {jQuery.Promise} A promise that resolves when all notifications
* were marked as read.
* @fires empty
*/
mw.echo.dm.NotificationsModel.prototype.autoMarkAllRead = function () {
var model = this;
this.autoMarkReadInProcess = true;
this.markAllRead()
.then( function () {
model.autoMarkReadInProcess = false;
} );
};
/**
* Update the read status of a notification item in the API
*
* @param {string} itemId Item id
* @return {jQuery.Promise} A promise that resolves when the notifications
* were marked as read.
*/
mw.echo.dm.NotificationsModel.prototype.markItemReadInApi = function ( itemId ) {
if ( !this.unreadNotifications.getItemCount() ) {
return $.Deferred().resolve( 0 ).promise();
}
return this.getApi().markItemRead( itemId );
};
/**
* Update the read status in the API only for the existing items in this model.
* If an item id array is given, those items will be updated. Otherwise, all items
* in the model are updated.
*
* @param {string[]} [itemIds] Array of item ids
* @return {jQuery.Promise} A promise that resolves when the notifications
* were marked as read.
*/
mw.echo.dm.NotificationsModel.prototype.markExistingItemsReadInApi = function ( itemIds ) {
itemIds = itemIds || this.getAllItemIds();
return this.getApi().markMultipleItemsRead( itemIds );
};
/**
* Get an array of the notification IDs of the items in this model
*
* @return {string[]} Array of notification IDs
*/
mw.echo.dm.NotificationsModel.prototype.getAllItemIds = function () {
var i,
items = this.getItems(),
result = [];
for ( i = 0; i < items.length; i++ ) {
result.push( items[ i ].getId() );
}
return result;
};
/**
* Fetch notifications from the API and update the notifications list.
*
* @param {jQuery.Promise} An existing promise querying the API for notifications.
* This allows us to send an API request external to the DM and have the model
* handle the operation as if it asked for the request itself, updating all that
* needs to be updated and emitting all proper events.
* @return {jQuery.Promise} A promise that resolves with an array of notification IDs
*/
mw.echo.dm.NotificationsModel.prototype.fetchNotifications = function ( apiPromise ) {
var model = this;
// Rebuild the notifications promise either when it is null or when
// it exists in a failed state
return ( apiPromise || this.getApi().fetchNotifications() )
.then(
// Success
function ( result ) {
var notifData, id, t, tlen, s,
notificationModel, types, content,
newNotifData = {},
sources = {},
optionItems = [],
idArray = [],
data = OO.getProp( result.query, 'notifications', model.type ) || { index: [] },
sourceDefinitions = OO.getProp( result.query, 'notifications', 'sources' ) || {};
types = $.isArray( model.type ) ? model.type : [ model.type ];
for ( t = 0, tlen = types.length; t < tlen; t++ ) {
data = OO.getProp( result.query, 'notifications', types[ t ] ) || { list: [] };
for ( id in data.list ) {
notifData = data.list[ id ];
content = notifData[ '*' ] || {};
if ( model.getItemById( id ) ) {
// Skip if we already have the item
// TODO: Instead of skipping, we should consider repopulating
// the item, in case there are any changes that would result
// in repositioning/resorting in the future.
continue;
}
// Collect common data
newNotifData = {
read: !!notifData.read,
seen: !!notifData.read || notifData.timestamp.mw <= model.getSeenTime(),
timestamp: notifData.timestamp.utcmw,
category: notifData.category,
content: {
header: content.header,
body: content.body
},
iconURL: content.iconUrl,
iconType: content.icon,
type: model.getType(),
foreign: model.isForeign(),
source: model.getSource(),
primaryUrl: OO.getProp( content.links, 'primary', 'url' ),
secondaryUrls: OO.getProp( content.links, 'secondary' ) || []
};
if ( notifData.type === 'foreign' ) {
// Define sources
sources = {};
for ( s = 0; s < notifData.sources.length; s++ ) {
sources[ notifData.sources[ s ] ] = sourceDefinitions[ notifData.sources[ s ] ];
}
// Create model
notificationModel = new mw.echo.dm.NotificationGroupItem(
model.networkHandler,
sources,
id,
$.extend( true, {}, newNotifData, {
// This should probably be separated by bundled
// type. Some types don't have read messages, but
// some do
removeReadNotifications: true,
// Override the foreign flag to 'true' for cross-wiki
// notifications.
// For bundles that are not foreign (like regular
// bundles of notifications) this flag should be false
foreign: true,
count: notifData.count
} )
);
} else {
notificationModel = new mw.echo.dm.NotificationItem(
id,
newNotifData
);
}
idArray.push( notifData.id );
optionItems.push( notificationModel );
}
}
// Add to the model
model.addItems( optionItems, 0 );
model.emit( 'done', true, { ids: idArray } );
return idArray;
},
// Failure
function ( errCode, errObj ) {
// TODO: The 'analysis' of which error we are working with should
// be in the network layer of Echo's frontend code
model.emit(
'done',
false,
{
errCode: errCode,
errInfo: errCode === 'http' ?
mw.msg( 'echo-api-failure-cross-wiki' ) :
OO.getProp( errObj, 'error', 'info' )
} );
}
);
};
/**
* Update the unread and unseen tracking lists when we add items
*
* @param {mw.echo.dm.NotificationItem[]} items Items to add
*/
mw.echo.dm.NotificationsModel.prototype.addItems = function ( items ) {
var i, len;
for ( i = 0, len = items.length; i < len; i++ ) {
if ( !items[ i ].isRead() ) {
this.unreadNotifications.addItems( [ items[ i ] ] );
}
if ( !items[ i ].isSeen() ) {
this.unseenNotifications.addItems( [ items[ i ] ] );
}
}
// Parent
mw.echo.dm.SortedList.prototype.addItems.call( this, items );
};
/**
* Update the unread and unseen tracking lists when we remove items
*
* @param {mw.echo.dm.NotificationItem[]} items Items to remove
* @param {number} index Index to add items at
*/
mw.echo.dm.NotificationsModel.prototype.removeItems = function ( items ) {
var i, len;
for ( i = 0, len = items.length; i < len; i++ ) {
this.unreadNotifications.removeItems( [ items[ i ] ] );
this.unseenNotifications.removeItems( [ items[ i ] ] );
}
// Parent
mw.echo.dm.SortedList.prototype.removeItems.call( this, items );
if ( this.isEmpty() ) {
this.emit( 'empty' );
}
};
/**
* Update the unread and unseen tracking lists when we clear items
*/
mw.echo.dm.NotificationsModel.prototype.clearItems = function () {
this.unreadNotifications.clearItems();
this.unseenNotifications.clearItems();
// Parent
mw.echo.dm.SortedList.prototype.clearItems.call( this );
this.emit( 'empty' );
};
/**
* Query the API for unread count of the notifications in this model
*
* @return {jQuery.Promise} jQuery promise that's resolved when the unread count is fetched
* and the badge label is updated.
*/
mw.echo.dm.NotificationsModel.prototype.fetchUnreadCountFromApi = function () {
return this.getApi().fetchUnreadCount();
};
/**
* Check whether the model is fetching notifications from the API
*
* @return {boolean} The model is in the process of fetching from the API
*/
mw.echo.dm.NotificationsModel.prototype.isFetchingNotifications = function () {
return this.getApi().isFetchingNotifications();
};
/**
* Check whether the model has an api error state flagged
*
* @return {boolean} The model is in api error state
*/
mw.echo.dm.NotificationsModel.prototype.isFetchingErrorState = function () {
return this.getApi().isFetchingErrorState();
};
/**
* Return the fetch notifications promise
* @return {jQuery.Promise} Promise that is resolved when notifications were
* fetched from the API.
*/
mw.echo.dm.NotificationsModel.prototype.getFetchNotificationPromise = function () {
return this.getApi().getFetchNotificationPromise();
};
/**
* Get the timestamp of the latest unread item
*
* @return {mw.echo.dm.APIHandler} API handler
*/
mw.echo.dm.NotificationsModel.prototype.getTimestamp = function () {
var items = this.getItems();
// This is a sorted list, so the top (first) item is also the 'latest'
// item for this purpose.
return items[ 0 ] && items[ 0 ].getTimestamp();
};
/**
* Get the API handler associated with this model's source
*
* @return {mw.echo.dm.APIHandler} API handler
*/
mw.echo.dm.NotificationsModel.prototype.getApi = function () {
return this.networkHandler.getApiHandler( this.source );
};
/**
* Get the network handler
*
* @return {mw.echo.dm.NetworkHandler} Network handler
*/
mw.echo.dm.NotificationsModel.prototype.getNetworkHandler = function () {
return this.networkHandler;
};
/**
* Get the source this model is associated with
*
* @return {string} Symbolic name for the APIHandler source
*/
mw.echo.dm.NotificationsModel.prototype.getSource = function () {
return this.source;
};
/**
* Get the title of this model
*
* @return {string} Title
*/
mw.echo.dm.NotificationsModel.prototype.getTitle = function () {
return this.title;
};
/**
* Get the id of this model
*
* @return {string} id
*/
mw.echo.dm.NotificationsModel.prototype.getId = function () {
return this.id;
};
/**
* This model is foreign
*
* @return {boolean} Model is foreign
*/
mw.echo.dm.NotificationsModel.prototype.isForeign = function () {
return this.foreign;
};
} )( mediaWiki, jQuery );