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469 lines
18 KiB
JavaScript
469 lines
18 KiB
JavaScript
/* -*- Mode: javascript; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Oracle Corporation code.
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*
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* The Initial Developer of the Original Code is
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* Oracle Corporation
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* Portions created by the Initial Developer are Copyright (C) 2004
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Vladimir Vukicevic <vladimir.vukicevic@oracle.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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//
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// calMemoryCalendar.js
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//
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function calMemoryCalendar() {
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this.wrappedJSObject = this;
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this.mObservers = Array();
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this.mItems = { };
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}
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function makeOccurrence(item, start, end)
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{
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var occ = Components.classes["@mozilla.org/calendar/item-occurrence;1"].
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createInstance(Components.interfaces.calIItemOccurrence);
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// XXX poor form
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occ.wrappedJSObject.item = item;
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occ.wrappedJSObject.occurrenceStartDate = start;
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occ.wrappedJSObject.occurrenceEndDate = end;
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return occ;
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}
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// END_OF_TIME needs to be the max value a PRTime can be
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const END_OF_TIME = 0x7fffffffffffffff;
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calMemoryCalendar.prototype = {
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//
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// nsISupports interface
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//
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QueryInterface: function (aIID) {
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if (!aIID.equals(Components.interfaces.nsISupports) &&
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!aIID.equals(Components.interfaces.calICalendar)) {
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throw Components.results.NS_ERROR_NO_INTERFACE;
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}
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return this;
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},
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//
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// nsICalendar interface
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//
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// attribute nsIURI uri;
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mUri: null,
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get uri() { return this.mUri; },
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set uri(aURI) { this.mUri = aURI; },
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// attribute boolean suppressAlarms;
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get suppressAlarms() { return false; },
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set suppressAlarms(aSuppressAlarms) { throw Components.results.NS_ERROR_NOT_IMPLEMENTED; },
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// void addObserver( in calIObserver observer, in unsigned long aItemFilter );
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addObserver: function (aObserver, aItemFilter) {
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for (var i = 0; i < this.mObservers.length; i++) {
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if (this.mObservers[i].observer == aObserver &&
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this.mObservers[i].filter == aItemFilter)
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{
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return;
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}
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}
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this.mObservers.push( {observer: aObserver, filter: aItemFilter} );
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},
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// void removeObserver( in calIObserver observer );
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removeObserver: function (aObserver) {
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var newObservers = Array();
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for (var i = 0; i < this.mObservers.length; i++) {
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if (this.mObservers[i].observer != aObserver)
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newObservers.push(mObservers[i]);
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}
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this.mObservers = newObservers;
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},
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// void addItem( in calIItemBase aItem, in calIOperationListener aListener );
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addItem: function (aItem, aListener) {
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if (aItem.id == null && aItem.isMutable)
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aItem.id = "uuid:" + (new Date()).getTime();
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if (aItem.id == null) {
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if (aListener)
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aListener.onOperationComplete (this,
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Components.results.NS_ERROR_FAILURE,
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aListener.ADD,
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aItem.id,
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"Can't set ID on non-mutable item to addItem");
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return;
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}
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if (this.mItems[aItem.id] != null) {
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// is this an error?
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if (aListener)
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aListener.onOperationComplete (this,
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Components.results.NS_ERROR_FAILURE,
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aListener.ADD,
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aItem.id,
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"ID already exists for addItem");
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return;
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}
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var newItem = aItem.clone();
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newItem.parent = this;
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newItem.generation = 1;
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newItem.makeImmutable();
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this.mItems[newItem.id] = newItem;
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// notify the listener
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if (aListener)
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aListener.onOperationComplete (this,
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Components.results.NS_OK,
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aListener.ADD,
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newItem.id,
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newItem);
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// notify observers
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this.observeAddItem(newItem);
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},
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// void modifyItem( in calIItemBase aItem, in calIOperationListener aListener );
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modifyItem: function (aItem, aListener) {
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if (aItem.id == null ||
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this.mItems[aItem.id] == null)
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{
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// this is definitely an error
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if (aListener)
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aListener.onOperationComplete (this,
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Components.results.NS_ERROR_FAILURE,
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aListener.MODIFY,
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aItem.id,
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"ID for modifyItem doesn't exist, is null, or is from different calendar");
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return;
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}
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var oldItem = this.mItems[aItem.id];
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if (oldItem.generation != aItem.generation) {
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if (aListener)
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aListener.onOperationComplete (this,
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Components.results.NS_ERROR_FAILURE,
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aListener.MODIFY,
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aItem.id,
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"generation mismatch in modifyItem");
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return;
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}
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var newItem = aItem.clone();
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newItem.generation += 1;
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newItem.makeImmutable();
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this.mItems[newItem.id] = newItem;
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if (aListener)
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aListener.onOperationComplete (this,
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Components.results.NS_OK,
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aListener.MODIFY,
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newItem.id,
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newItem);
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// notify observers
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this.observeModifyItem(oldItem, newItem);
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},
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// void deleteItem( in calIItemBase aItem, in calIOperationListener aListener );
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deleteItem: function (aItem, aListener) {
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if (aItem.id == null || this.mItems[aItem.id] == null) {
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if (aListener)
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aListener.onOperationComplete (this,
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Components.results.NS_ERROR_FAILURE,
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aListener.DELETE,
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aId,
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"ID is null or is from different calendar in deleteItem");
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return;
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}
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var oldItem = this.mItems[aItem.id];
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if (oldItem.generation != aItem.generation) {
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if (aListener)
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aListener.onOperationComplete (this,
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Components.results.NS_ERROR_FAILURE,
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aListener.DELETE,
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aId,
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"generation mismatch in deleteItem");
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return;
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}
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delete this.mItems[aItem.id];
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if (aListener)
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aListener.onOperationComplete (this,
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Components.results.NS_OK,
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aListener.DELETE,
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aId,
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null);
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// notify observers
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observeDeleteItem(oldItem);
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},
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// void getItem( in string id, in calIOperationListener aListener );
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getItem: function (aId, aListener) {
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if (!aListener)
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return;
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if (aId == null ||
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this.mItems[aId] == null) {
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aListener.onOperationComplete(this,
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Components.results.NS_ERROR_FAILURE,
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aListener.GET,
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null,
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"IID doesn't exist for getItem");
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return;
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}
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var item = this.mItems[aId];
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var iid = null;
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if (item.QueryInterface(Components.interfaces.calIEvent)) {
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iid = Components.interfaces.calIEvent;
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} else if (item.QueryInterface(Components.interfaces.calITodo)) {
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iid = Components.interfaces.calITodo;
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} else {
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aListener.onOperationComplete (this,
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Components.results.NS_ERROR_FAILURE,
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aListener.GET,
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aId,
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"Can't deduce item type based on QI");
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return;
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}
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aListener.onGetResult (this,
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Components.results.NS_OK,
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iid,
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null, 1, [item]);
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aListener.onOperationComplete (this,
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Components.results.NS_OK,
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aListener.GET,
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aId,
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null);
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},
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// void getItems( in unsigned long aItemFilter, in unsigned long aCount,
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// in calIDateTime aRangeStart, in calIDateTime aRangeEnd,
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// in calIOperationListener aListener );
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getItems: function (aItemFilter, aCount,
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aRangeStart, aRangeEnd, aListener)
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{
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if (!aListener)
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return;
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const calICalendar = Components.interfaces.calICalendar;
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const calIItemBase = Components.interfaces.calIItemBase;
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const calIEvent = Components.interfaces.calIEvent;
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const calITodo = Components.interfaces.calITodo;
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const calIItemOccurrence = Components.interfaces.calIItemOccurrence;
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const calIRecurrenceInfo = Components.interfaces.calIRecurrenceInfo;
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var itemsFound = Array();
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var startTime = 0;
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var endTime = END_OF_TIME;
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if (aRangeStart)
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startTime = aRangeStart.nativeTime;
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if (aRangeEnd)
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endTime = aRangeEnd.nativeTime;
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//
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// filters
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//
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// item base type
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var itemTypeFilter = null;
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if (aItemFilter & calICalendar.ITEM_FILTER_TYPE_ALL)
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itemTypeFilter = calIItemBase;
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else if (aItemFilter & calICalendar.ITEM_FILTER_TYPE_EVENT)
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itemTypeFilter = calIEvent;
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else if (aItemFilter & calICalendar.ITEM_FILTER_TYPE_TODO)
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itemTypeFilter = calITodo;
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else {
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// bail.
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aListener.onOperationComplete (Components.results.NS_ERROR_FAILURE,
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aListener.GET,
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null,
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"Bad aItemFilter passed to getItems");
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return;
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}
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// completed?
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var itemCompletedFilter = ((aItemFilter & calICalendar.ITEM_FILTER_COMPLETED_YES) != 0);
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var itemNotCompletedFilter = ((aItemFilter & calICalendar.ITEM_FILTER_COMPLETED_NO) != 0);
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// return occurrences?
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var itemReturnOccurrences = ((aItemFilter & calICalendar.ITEM_FILTER_CLASS_OCCURRENCES) != 0);
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// if aCount != 0, we don't attempt to sort anything, and
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// instead return the first aCount items that match.
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for (var i in this.mItems) {
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var item = this.mItems[i];
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var itemtoadd = null;
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if (itemTypeFilter && !(item instanceof itemTypeFilter))
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continue;
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var itemStartTime = 0;
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var itemEndTime = 0;
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var tmpitem = item;
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if (item instanceof calIEvent) {
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tmpitem = item.QueryInterface(calIEvent);
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itemStartTime = item.startDate.nativeTime || 0;
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itemEndTime = item.endDate.nativeTime || END_OF_TIME;
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} else if (item instanceof calITodo) {
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// if it's a todo, also filter based on completeness
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if (item.percentComplete == 100 && !itemCompletedFilter)
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continue;
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else if (item.percentComplete < 100 && !itemNotCompletedFilter)
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continue;
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itemEndTime = itemStartTime = item.entryTime.nativeTime || 0;
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} else {
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// XXX unknown item type, wth do we do?
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continue;
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}
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if (itemStartTime <= endTime) {
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// figure out if there are recurrences here we care about
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if (itemReturnOccurrences && item.recurrenceInfo &&
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item.recurrenceInfo.recurType != calIRecurrenceInfo.CAL_RECUR_INVALID)
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{
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// there might be some recurrences here that we need to handle
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var recs = item.recurrenceInfo.getOccurrencesBetween (item, aRangeStart, aRangeEnd, {});
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for (var i = 0; i < recs.length; i++) {
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itemsFound.push(recs[i]);
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}
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} else if (itemEndTime >= startTime) {
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// no occurrences
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if (itemReturnOccurrences)
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itemtoadd = makeOccurrence(item, item.startDate, item.endDate);
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else
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itemtoadd = item;
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itemsFound.push(itemtoadd);
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}
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}
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if (aCount && itemsFound.length >= aCount)
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break;
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}
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aListener.onGetResult (this,
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Components.results.NS_OK,
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itemReturnOccurrences ? calIItemOccurrence : itemTypeFilter,
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null,
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itemsFound.length,
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itemsFound);
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aListener.onOperationComplete (this,
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Components.results.NS_OK,
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aListener.GET,
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null,
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null);
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},
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//
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// Helper functions
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//
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observeBatchChange: function (aNewBatchMode) {
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for (var i = 0; i < this.mObservers.length; i++) {
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if (aNewBatchMode)
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this.mObservers[i].observer.onStartBatch ();
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else
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this.mObservers[i].observer.onEndBatch ();
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}
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},
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observeAddItem: function (aItem) {
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for (var i = 0; i < this.mObservers.length; i++) {
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this.mObservers[i].observer.onAddItem (aItem);
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}
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},
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observeModifyItem: function (aOldItem, aNewItem) {
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for (var i = 0; i < this.mObservers.length; i++)
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this.mObservers[i].observer.onModifyItem (aOldItem, aNewItem);
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},
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observeDeleteItem: function (aDeletedItem) {
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for (var i = 0; i < this.mObservers.length; i++)
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this.mObservers[i].observer.onDeleteItem (aDeletedItem);
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},
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}
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/****
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**** module registration
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****/
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var calMemoryCalendarModule = {
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mCID: Components.ID("{bda0dd7f-0a2f-4fcf-ba08-5517e6fbf133}"),
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mContractID: "@mozilla.org/calendar/calendar;1?type=memory",
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registerSelf: function (compMgr, fileSpec, location, type) {
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compMgr = compMgr.QueryInterface(Components.interfaces.nsIComponentRegistrar);
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compMgr.registerFactoryLocation(this.mCID,
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"Calendar in-memory back-end",
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this.mContractID,
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fileSpec,
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location,
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type);
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},
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getClassObject: function (compMgr, cid, iid) {
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if (!cid.equals(this.mCID))
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throw Components.results.NS_ERROR_NO_INTERFACE;
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if (!iid.equals(Components.interfaces.nsIFactory))
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throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
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return this.mFactory;
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},
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mFactory: {
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createInstance: function (outer, iid) {
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if (outer != null)
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throw Components.results.NS_ERROR_NO_AGGREGATION;
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return (new calMemoryCalendar()).QueryInterface(iid);
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}
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},
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canUnload: function(compMgr) {
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return true;
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}
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};
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function NSGetModule(compMgr, fileSpec) {
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return calMemoryCalendarModule;
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}
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