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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
var cICL = Ci.calIChangeLog;
export function CalMemoryCalendar() {
this.initProviderBase();
this.initMemoryCalendar();
}
var calMemoryCalendarClassID = Components.ID("{bda0dd7f-0a2f-4fcf-ba08-5517e6fbf133}");
var calMemoryCalendarInterfaces = [
"calICalendar",
"calISchedulingSupport",
"calIOfflineStorage",
"calISyncWriteCalendar",
"calICalendarProvider",
];
CalMemoryCalendar.prototype = {
__proto__: cal.provider.BaseClass.prototype,
classID: calMemoryCalendarClassID,
QueryInterface: cal.generateQI(calMemoryCalendarInterfaces),
classInfo: cal.generateCI({
classID: calMemoryCalendarClassID,
contractID: "@mozilla.org/calendar/calendar;1?type=memory",
classDescription: "Calendar Memory Provider",
interfaces: calMemoryCalendarInterfaces,
}),
mItems: null,
mOfflineFlags: null,
mObservers: null,
mMetaData: null,
initMemoryCalendar() {
this.mObservers = new cal.data.ObserverSet(Ci.calIObserver);
this.mItems = {};
this.mOfflineFlags = {};
this.mMetaData = new Map();
},
//
// calICalendarProvider interface
//
get displayName() {
return cal.l10n.getCalString("memoryName");
},
get shortName() {
return this.displayName;
},
deleteCalendar(calendar, listener) {
calendar = calendar.wrappedJSObject;
calendar.mItems = {};
calendar.mMetaData = new Map();
try {
listener.onDeleteCalendar(calendar, Cr.NS_OK, null);
} catch (ex) {
// Don't bail out if the listener fails
}
},
detectCalendars() {
throw Components.Exception(
"CalMemoryCalendar does not implement detectCalendars",
Cr.NS_ERROR_NOT_IMPLEMENTED
);
},
mRelaxedMode: undefined,
get relaxedMode() {
if (this.mRelaxedMode === undefined) {
this.mRelaxedMode = this.getProperty("relaxedMode");
}
return this.mRelaxedMode;
},
//
// calICalendar interface
//
getProperty(aName) {
switch (aName) {
case "cache.supported":
case "requiresNetwork":
return false;
case "capabilities.priority.supported":
return true;
case "removemodes":
return ["delete"];
}
return this.__proto__.__proto__.getProperty.apply(this, arguments);
},
get supportsScheduling() {
return true;
},
getSchedulingSupport() {
return this;
},
// readonly attribute AUTF8String type;
get type() {
return "memory";
},
// Promise<calIItemBase> addItem(in calIItemBase aItem);
async addItem(aItem) {
const newItem = aItem.clone();
return this.adoptItem(newItem);
},
// Promise<calIItemBase> adoptItem(in calIItemBase aItem);
async adoptItem(aItem) {
if (this.readOnly) {
throw Ci.calIErrors.CAL_IS_READONLY;
}
if (aItem.id == null && aItem.isMutable) {
aItem.id = cal.getUUID();
}
if (aItem.id == null) {
this.notifyOperationComplete(
null,
Cr.NS_ERROR_FAILURE,
Ci.calIOperationListener.ADD,
aItem.id,
"Can't set ID on non-mutable item to addItem"
);
return Promise.reject(
new Components.Exception("Can't set ID on non-mutable item to addItem", Cr.NS_ERROR_FAILURE)
);
}
// memory calendar cannot assume that a new item should not have an ID.
// calCachedCalendar could send over an item with an id.
/*
if (this.mItems[aItem.id] != null) {
if (this.relaxedMode) {
// we possibly want to interact with the user before deleting
delete this.mItems[aItem.id];
} else {
this.notifyOperationComplete(aListener,
Ci.calIErrors.DUPLICATE_ID,
Ci.calIOperationListener.ADD,
aItem.id,
"ID already exists for addItem");
return;
}
}
*/
let parentItem = aItem.parentItem;
if (parentItem != aItem) {
parentItem = parentItem.clone();
parentItem.recurrenceInfo.modifyException(aItem, true);
}
parentItem.calendar = this.superCalendar;
parentItem.makeImmutable();
this.mItems[aItem.id] = parentItem;
// notify observers
this.mObservers.notify("onAddItem", [aItem]);
return aItem;
},
// Promise<calIItemBase> modifyItem(in calIItemBase aNewItem, in calIItemBase aOldItem)
async modifyItem(aNewItem, aOldItem) {
if (this.readOnly) {
throw Ci.calIErrors.CAL_IS_READONLY;
}
if (!aNewItem) {
throw Components.Exception("aNewItem must be set", Cr.NS_ERROR_INVALID_ARG);
}
const reportError = (errStr, errId = Cr.NS_ERROR_FAILURE) => {
this.notifyOperationComplete(
null,
errId,
Ci.calIOperationListener.MODIFY,
aNewItem.id,
errStr
);
return Promise.reject(new Components.Exception(errStr, errId));
};
if (!aNewItem.id) {
// this is definitely an error
return reportError("ID for modifyItem item is null");
}
const modifiedItem = aNewItem.parentItem.clone();
if (aNewItem.parentItem != aNewItem) {
modifiedItem.recurrenceInfo.modifyException(aNewItem, false);
}
// If no old item was passed, then we should overwrite in any case.
// Pick up the old item from our items array and use this as an old item
// later on.
if (!aOldItem) {
aOldItem = this.mItems[aNewItem.id];
}
if (this.relaxedMode) {
// We've already filled in the old item above, if this doesn't exist
// then just take the current item as its old version
if (!aOldItem) {
aOldItem = modifiedItem;
}
aOldItem = aOldItem.parentItem;
} else if (!this.relaxedMode) {
if (!aOldItem || !this.mItems[aNewItem.id]) {
// no old item found? should be using addItem, then.
return reportError(
"ID for modifyItem doesn't exist, is null, or is from different calendar"
);
}
// do the old and new items match?
if (aOldItem.id != modifiedItem.id) {
return reportError("item ID mismatch between old and new items");
}
aOldItem = aOldItem.parentItem;
const storedOldItem = this.mItems[aOldItem.id];
if (!cal.item.compareContent(storedOldItem, aOldItem)) {
return reportError(
"old item mismatch in modifyItem. storedId:" +
storedOldItem.icalComponent +
" old item:" +
aOldItem.icalComponent
);
}
// offline bug
if (aOldItem.generation != storedOldItem.generation) {
return reportError("generation mismatch in modifyItem");
}
if (aOldItem.generation == modifiedItem.generation) {
// has been cloned and modified
// Only take care of incrementing the generation if relaxed mode is
// off. Users of relaxed mode need to take care of this themselves.
modifiedItem.generation += 1;
}
}
modifiedItem.makeImmutable();
this.mItems[modifiedItem.id] = modifiedItem;
this.notifyOperationComplete(
null,
Cr.NS_OK,
Ci.calIOperationListener.MODIFY,
modifiedItem.id,
modifiedItem
);
// notify observers
this.mObservers.notify("onModifyItem", [modifiedItem, aOldItem]);
return modifiedItem;
},
// Promise<void> deleteItem(in calIItemBase item);
async deleteItem(item) {
const onError = async (message, exception) => {
this.notifyOperationComplete(
null,
exception,
Ci.calIOperationListener.DELETE,
item.id,
message
);
return Promise.reject(new Components.Exception(message, exception));
};
if (this.readOnly) {
return onError("Calendar is readonly", Ci.calIErrors.CAL_IS_READONLY);
}
if (item.id == null) {
return onError("ID is null in deleteItem", Cr.NS_ERROR_FAILURE);
}
let oldItem;
if (this.relaxedMode) {
oldItem = item;
} else {
oldItem = this.mItems[item.id];
if (oldItem.generation != item.generation) {
return onError("generation mismatch in deleteItem", Cr.NS_ERROR_FAILURE);
}
}
delete this.mItems[item.id];
this.mMetaData.delete(item.id);
this.notifyOperationComplete(null, Cr.NS_OK, Ci.calIOperationListener.DELETE, item.id, item);
// notify observers
this.mObservers.notify("onDeleteItem", [oldItem]);
return null;
},
// Promise<calIItemBase|null> getItem(in string id);
async getItem(aId) {
return this.mItems[aId] || null;
},
// ReadableStream<calIItemBase> getItems(in unsigned long itemFilter,
// in unsigned long count,
// in calIDateTime rangeStart,
// in calIDateTime rangeEnd)
getItems(itemFilter, count, rangeStart, rangeEnd) {
const calICalendar = Ci.calICalendar;
let itemsFound = [];
//
// filters
//
let wantUnrespondedInvitations =
(itemFilter & calICalendar.ITEM_FILTER_REQUEST_NEEDS_ACTION) != 0;
let superCal;
try {
superCal = this.superCalendar.QueryInterface(Ci.calISchedulingSupport);
} catch (exc) {
wantUnrespondedInvitations = false;
}
function checkUnrespondedInvitation(item) {
const att = superCal.getInvitedAttendee(item);
return att && att.participationStatus == "NEEDS-ACTION";
}
// item base type
const wantEvents = (itemFilter & calICalendar.ITEM_FILTER_TYPE_EVENT) != 0;
const wantTodos = (itemFilter & calICalendar.ITEM_FILTER_TYPE_TODO) != 0;
if (!wantEvents && !wantTodos) {
// bail.
return CalReadableStreamFactory.createEmptyReadableStream();
}
// completed?
const itemCompletedFilter = (itemFilter & calICalendar.ITEM_FILTER_COMPLETED_YES) != 0;
const itemNotCompletedFilter = (itemFilter & calICalendar.ITEM_FILTER_COMPLETED_NO) != 0;
function checkCompleted(item) {
item.QueryInterface(Ci.calITodo);
return item.isCompleted ? itemCompletedFilter : itemNotCompletedFilter;
}
// return occurrences?
const itemReturnOccurrences = (itemFilter & calICalendar.ITEM_FILTER_CLASS_OCCURRENCES) != 0;
rangeStart = cal.dtz.ensureDateTime(rangeStart);
rangeEnd = cal.dtz.ensureDateTime(rangeEnd);
let startTime = -9223372036854775000;
if (rangeStart) {
startTime = rangeStart.nativeTime;
}
let requestedFlag = 0;
if ((itemFilter & calICalendar.ITEM_FILTER_OFFLINE_CREATED) != 0) {
requestedFlag = cICL.OFFLINE_FLAG_CREATED_RECORD;
} else if ((itemFilter & calICalendar.ITEM_FILTER_OFFLINE_MODIFIED) != 0) {
requestedFlag = cICL.OFFLINE_FLAG_MODIFIED_RECORD;
} else if ((itemFilter & calICalendar.ITEM_FILTER_OFFLINE_DELETED) != 0) {
requestedFlag = cICL.OFFLINE_FLAG_DELETED_RECORD;
}
const matchOffline = function (itemFlag, reqFlag) {
// Same as storage calendar sql query. For comparison:
// reqFlag is :offline_journal (parameter),
// itemFlag is offline_journal (field value)
// ...
// AND (:offline_journal IS NULL
// AND (offline_journal IS NULL
// OR offline_journal != ${cICL.OFFLINE_FLAG_DELETED_RECORD}))
// OR offline_journal == :offline_journal
return (
(!reqFlag && (!itemFlag || itemFlag != cICL.OFFLINE_FLAG_DELETED_RECORD)) ||
itemFlag == reqFlag
);
};
const self = this;
return CalReadableStreamFactory.createBoundedReadableStream(
count,
CalReadableStreamFactory.defaultQueueSize,
{
async start(controller) {
return new Promise(resolve => {
cal.iterate.forEach(
self.mItems,
([, item]) => {
const isEvent_ = item.isEvent();
if (isEvent_) {
if (!wantEvents) {
return cal.iterate.forEach.CONTINUE;
}
} else if (!wantTodos) {
return cal.iterate.forEach.CONTINUE;
}
const hasItemFlag = item.id in self.mOfflineFlags;
const itemFlag = hasItemFlag ? self.mOfflineFlags[item.id] : 0;
// If the offline flag doesn't match, skip the item
if (!matchOffline(itemFlag, requestedFlag)) {
return cal.iterate.forEach.CONTINUE;
}
if (itemReturnOccurrences && item.recurrenceInfo) {
if (item.recurrenceInfo.recurrenceEndDate < startTime) {
return cal.iterate.forEach.CONTINUE;
}
let startDate = rangeStart;
if (!rangeStart && item.isTodo()) {
startDate = item.entryDate;
}
let occurrences = item.recurrenceInfo.getOccurrences(
startDate,
rangeEnd,
count ? count - itemsFound.length : 0
);
if (wantUnrespondedInvitations) {
occurrences = occurrences.filter(checkUnrespondedInvitation);
}
if (!isEvent_) {
occurrences = occurrences.filter(checkCompleted);
}
itemsFound = itemsFound.concat(occurrences);
} else if (
(!wantUnrespondedInvitations || checkUnrespondedInvitation(item)) &&
(isEvent_ || checkCompleted(item)) &&
cal.item.checkIfInRange(item, rangeStart, rangeEnd)
) {
// This needs fixing for recurring items, e.g. DTSTART of parent may occur before rangeStart.
itemsFound.push(item);
}
if (controller.maxTotalItemsReached) {
return cal.iterate.forEach.BREAK;
}
return cal.iterate.forEach.CONTINUE;
},
() => {
controller.enqueue(itemsFound);
controller.close();
resolve();
}
);
});
},
}
);
},
//
// calIOfflineStorage interface
//
async addOfflineItem(aItem) {
this.mOfflineFlags[aItem.id] = cICL.OFFLINE_FLAG_CREATED_RECORD;
},
async modifyOfflineItem(aItem) {
const oldFlag = this.mOfflineFlags[aItem.id];
if (
oldFlag != cICL.OFFLINE_FLAG_CREATED_RECORD &&
oldFlag != cICL.OFFLINE_FLAG_DELETED_RECORD
) {
this.mOfflineFlags[aItem.id] = cICL.OFFLINE_FLAG_MODIFIED_RECORD;
}
this.notifyOperationComplete(null, Cr.NS_OK, Ci.calIOperationListener.MODIFY, aItem.id, aItem);
return aItem;
},
async deleteOfflineItem(aItem) {
const oldFlag = this.mOfflineFlags[aItem.id];
if (oldFlag == cICL.OFFLINE_FLAG_CREATED_RECORD) {
delete this.mItems[aItem.id];
delete this.mOfflineFlags[aItem.id];
} else {
this.mOfflineFlags[aItem.id] = cICL.OFFLINE_FLAG_DELETED_RECORD;
}
// notify observers
this.observers.notify("onDeleteItem", [aItem]);
},
async getItemOfflineFlag(aItem) {
return aItem && aItem.id in this.mOfflineFlags ? this.mOfflineFlags[aItem.id] : null;
},
async resetItemOfflineFlag(aItem) {
delete this.mOfflineFlags[aItem.id];
},
//
// calISyncWriteCalendar interface
//
setMetaData(id, value) {
this.mMetaData.set(id, value);
},
deleteMetaData(id) {
this.mMetaData.delete(id);
},
getMetaData(id) {
return this.mMetaData.get(id);
},
getAllMetaDataIds() {
return [...this.mMetaData.keys()];
},
getAllMetaDataValues() {
return [...this.mMetaData.values()];
},
};