1 files changed, 126 insertions, 0 deletions
diff --git a/comm/calendar/base/content/dialogs/calendar-event-dialog-timezone.js b/comm/calendar/base/content/dialogs/calendar-event-dialog-timezone.js
new file mode 100644
index 0000000000..620932dda3
--- /dev/null
+++ b/comm/calendar/base/content/dialogs/calendar-event-dialog-timezone.js
@@ -0,0 +1,126 @@
+/* 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
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* global addMenuItem */ // From  ../calendar-ui-utils.js
+
+var { cal } = ChromeUtils.import("resource:///modules/calendar/calUtils.jsm");
+
+window.addEventListener("load", onLoad);
+
+/**
+ * Sets up the timezone dialog from the window arguments, also setting up all
+ * dialog controls from the window's dates.
+ */
+function onLoad() {
+  let args = window.arguments[0];
+  window.time = args.time;
+  window.onAcceptCallback = args.onOk;
+
+  let menulist = document.getElementById("timezone-menulist");
+  let tzMenuPopup = document.getElementById("timezone-menupopup");
+
+  // floating and UTC (if supported) at the top:
+  if (args.calendar.getProperty("capabilities.timezones.floating.supported") !== false) {
+    addMenuItem(tzMenuPopup, cal.dtz.floating.displayName, cal.dtz.floating.tzid);
+  }
+  if (args.calendar.getProperty("capabilities.timezones.UTC.supported") !== false) {
+    addMenuItem(tzMenuPopup, cal.dtz.UTC.displayName, cal.dtz.UTC.tzid);
+  }
+
+  let tzids = {};
+  let displayNames = [];
+  for (let timezoneId of cal.timezoneService.timezoneIds) {
+    let timezone = cal.timezoneService.getTimezone(timezoneId);
+    if (timezone && !timezone.isFloating && !timezone.isUTC) {
+      let displayName = timezone.displayName;
+      displayNames.push(displayName);
+      tzids[displayName] = timezone.tzid;
+    }
+  }
+  // the display names need to be sorted
+  displayNames.sort((a, b) => a.localeCompare(b));
+  for (let i = 0; i < displayNames.length; ++i) {
+    let displayName = displayNames[i];
+    addMenuItem(tzMenuPopup, displayName, tzids[displayName]);
+  }
+
+  let index = findTimezone(window.time.timezone);
+  if (index < 0) {
+    index = findTimezone(cal.dtz.defaultTimezone);
+    if (index < 0) {
+      index = 0;
+    }
+  }
+
+  menulist = document.getElementById("timezone-menulist");
+  menulist.selectedIndex = index;
+
+  updateTimezone();
+
+  opener.setCursor("auto");
+}
+
+/**
+ * Find the index of the timezone menuitem corresponding to the given timezone.
+ *
+ * @param timezone      The calITimezone to look for.
+ * @returns The index of the childnode below "timezone-menulist"
+ */
+function findTimezone(timezone) {
+  let tzid = timezone.tzid;
+  let menulist = document.getElementById("timezone-menulist");
+  let numChilds = menulist.children[0].children.length;
+  for (let i = 0; i < numChilds; i++) {
+    let menuitem = menulist.children[0].children[i];
+    if (menuitem.getAttribute("value") == tzid) {
+      return i;
+    }
+  }
+  return -1;
+}
+
+/**
+ * Handler function to call when the timezone selection has changed. Updates the
+ * timezone-time field and the timezone-stack.
+ */
+function updateTimezone() {
+  let menulist = document.getElementById("timezone-menulist");
+  let menuitem = menulist.selectedItem;
+  let timezone = cal.timezoneService.getTimezone(menuitem.getAttribute("value"));
+
+  // convert the date/time to the currently selected timezone
+  // and display the result in the appropriate control.
+  // before feeding the date/time value into the control we need
+  // to set the timezone to 'floating' in order to avoid the
+  // automatic conversion back into the OS timezone.
+  let datetime = document.getElementById("timezone-time");
+  let time = window.time.getInTimezone(timezone);
+  time.timezone = cal.dtz.floating;
+  datetime.value = cal.dtz.dateTimeToJsDate(time);
+
+  // don't highlight any timezone in the map by default
+  let standardTZOffset = "none";
+  if (timezone.isUTC) {
+    standardTZOffset = "+0000";
+  } else if (!timezone.isFloating) {
+    let standard = timezone.icalComponent.getFirstSubcomponent("STANDARD");
+    // any reason why valueAsIcalString is used instead of plain value? xxx todo: ask mickey
+    standardTZOffset = standard.getFirstProperty("TZOFFSETTO").valueAsIcalString;
+  }
+
+  let image = document.getElementById("highlighter");
+  image.setAttribute("tzid", standardTZOffset);
+}
+
+/**
+ * Handler function to be called when the accept button is pressed.
+ */
+document.addEventListener("dialogaccept", () => {
+  let menulist = document.getElementById("timezone-menulist");
+  let menuitem = menulist.selectedItem;
+  let timezoneString = menuitem.getAttribute("value");
+  let timezone = cal.timezoneService.getTimezone(timezoneString);
+  let datetime = window.time.getInTimezone(timezone);
+  window.onAcceptCallback(datetime);
+});