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Replace cal.createAdapter-based calendar observers with explicit calIObserver objects #67

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Replace cal.createAdapter-based calendar observers with explicit calIObserver objects #67

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dc734db
Fix calendar observers on Thunderbird 149 by replacing cal.createAdapter
DeBaschdi Apr 9, 2026
d7acd7d
Adjust JSDoc types
DeBaschdi Apr 16, 2026
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25 changes: 24 additions & 1 deletion calendar/experiments/calendar/parent/ext-calendar-calendars.js
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,29 @@ var { ExtensionUtils: { ExtensionError } } = ChromeUtils.importESModule("resourc

var { cal } = ChromeUtils.importESModule("resource:///modules/calendar/calUtils.sys.mjs");

/**
* Thunderbird >=148 no longer exposes cal.createAdapter(). Build explicit
* calIObserver objects so the vendored calendar experiment keeps working on
* newer release channels as well as ESR.
*
* @param {object} methods
* @returns {calIObserver}
*/
function createCalendarObserver(methods = {}) {
return Object.assign({
QueryInterface: ChromeUtils.generateQI(["calIObserver"]),
onStartBatch() {},
onEndBatch() {},
onLoad() {},
onAddItem() {},
onModifyItem() {},
onDeleteItem() {},
onError() {},
onPropertyChanged() {},
onPropertyDeleting() {},
}, methods);
}

this.calendar_calendars = class extends ExtensionAPI {
getAPI(context) {
const uuid = context.extension.uuid;
Expand Down Expand Up @@ -275,7 +298,7 @@ this.calendar_calendars = class extends ExtensionAPI {
context,
name: "calendar.calendars.onUpdated",
register: fire => {
const observer = cal.createAdapter(Ci.calIObserver, {
const observer = createCalendarObserver({
onPropertyChanged(calendar, name, value, _oldValue) {
const converted = convertCalendar(context.extension, calendar);
switch (name) {
Expand Down
29 changes: 26 additions & 3 deletions calendar/experiments/calendar/parent/ext-calendar-items.js
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,29 @@ var { ExtensionUtils: { ExtensionError } } = ChromeUtils.importESModule("resourc

var { cal } = ChromeUtils.importESModule("resource:///modules/calendar/calUtils.sys.mjs");

/**
* Thunderbird >=148 no longer exposes cal.createAdapter(). Build explicit
* calIObserver objects so the vendored calendar experiment keeps working on
* newer release channels as well as ESR.
*
* @param {object} methods
* @returns {calIObserver}
*/
function createCalendarObserver(methods = {}) {
return Object.assign({
QueryInterface: ChromeUtils.generateQI(["calIObserver"]),
onStartBatch() {},
onEndBatch() {},
onLoad() {},
onAddItem() {},
onModifyItem() {},
onDeleteItem() {},
onError() {},
onPropertyChanged() {},
onPropertyDeleting() {},
}, methods);
}

this.calendar_items = class extends ExtensionAPI {
getAPI(context) {
const uuid = context.extension.uuid;
Expand Down Expand Up @@ -164,7 +187,7 @@ this.calendar_items = class extends ExtensionAPI {
context,
name: "calendar.items.onCreated",
register: (fire, options) => {
const observer = cal.createAdapter(Ci.calIObserver, {
const observer = createCalendarObserver({
onAddItem: item => {
fire.sync(convertItem(item, options, context.extension));
},
Expand All @@ -181,7 +204,7 @@ this.calendar_items = class extends ExtensionAPI {
context,
name: "calendar.items.onUpdated",
register: (fire, options) => {
const observer = cal.createAdapter(Ci.calIObserver, {
const observer = createCalendarObserver({
onModifyItem: (newItem, _oldItem) => {
// TODO calculate changeInfo
const changeInfo = {};
Expand All @@ -200,7 +223,7 @@ this.calendar_items = class extends ExtensionAPI {
context,
name: "calendar.items.onRemoved",
register: fire => {
const observer = cal.createAdapter(Ci.calIObserver, {
const observer = createCalendarObserver({
onDeleteItem: item => {
fire.sync(item.calendar.id, item.id);
},
Expand Down
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