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gecko-dev/toolkit/modules/PopupNotifications.jsm

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JavaScript
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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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
this.EXPORTED_SYMBOLS = ["PopupNotifications"];
var Cc = Components.classes, Ci = Components.interfaces, Cu = Components.utils;
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/PrivateBrowsingUtils.jsm");
Cu.import("resource://gre/modules/Promise.jsm");
const NOTIFICATION_EVENT_DISMISSED = "dismissed";
const NOTIFICATION_EVENT_REMOVED = "removed";
const NOTIFICATION_EVENT_SHOWING = "showing";
const NOTIFICATION_EVENT_SHOWN = "shown";
const NOTIFICATION_EVENT_SWAPPING = "swapping";
const ICON_SELECTOR = ".notification-anchor-icon";
const ICON_ATTRIBUTE_SHOWING = "showing";
const ICON_ANCHOR_ATTRIBUTE = "popupnotificationanchor";
const PREF_SECURITY_DELAY = "security.notification_enable_delay";
// Enumerated values for the POPUP_NOTIFICATION_STATS telemetry histogram.
const TELEMETRY_STAT_OFFERED = 0;
const TELEMETRY_STAT_ACTION_1 = 1;
const TELEMETRY_STAT_ACTION_2 = 2;
const TELEMETRY_STAT_ACTION_3 = 3;
const TELEMETRY_STAT_ACTION_LAST = 4;
const TELEMETRY_STAT_DISMISSAL_CLICK_ELSEWHERE = 5;
const TELEMETRY_STAT_DISMISSAL_LEAVE_PAGE = 6;
const TELEMETRY_STAT_DISMISSAL_CLOSE_BUTTON = 7;
const TELEMETRY_STAT_DISMISSAL_NOT_NOW = 8;
const TELEMETRY_STAT_OPEN_SUBMENU = 10;
const TELEMETRY_STAT_LEARN_MORE = 11;
const TELEMETRY_STAT_REOPENED_OFFSET = 20;
var popupNotificationsMap = new WeakMap();
var gNotificationParents = new WeakMap;
function getAnchorFromBrowser(aBrowser, aAnchorID) {
let attrPrefix = aAnchorID ? aAnchorID.replace("notification-icon", "") : "";
let anchor = aBrowser.getAttribute(attrPrefix + ICON_ANCHOR_ATTRIBUTE) ||
aBrowser[attrPrefix + ICON_ANCHOR_ATTRIBUTE] ||
aBrowser.getAttribute(ICON_ANCHOR_ATTRIBUTE) ||
aBrowser[ICON_ANCHOR_ATTRIBUTE];
if (anchor) {
if (anchor instanceof Ci.nsIDOMXULElement) {
return anchor;
}
return aBrowser.ownerDocument.getElementById(anchor);
}
return null;
}
/**
* Notification object describes a single popup notification.
*
* @see PopupNotifications.show()
*/
function Notification(id, message, anchorID, mainAction, secondaryActions,
browser, owner, options) {
this.id = id;
this.message = message;
this.anchorID = anchorID;
this.mainAction = mainAction;
this.secondaryActions = secondaryActions || [];
this.browser = browser;
this.owner = owner;
this.options = options || {};
this._dismissed = false;
this.wasDismissed = false;
this.recordedTelemetryStats = new Set();
this.isPrivate = PrivateBrowsingUtils.isWindowPrivate(
this.browser.ownerDocument.defaultView);
this.timeCreated = this.owner.window.performance.now();
}
Notification.prototype = {
id: null,
message: null,
anchorID: null,
mainAction: null,
secondaryActions: null,
browser: null,
owner: null,
options: null,
timeShown: null,
/**
* Indicates whether the notification is currently dismissed.
*/
set dismissed(value) {
this._dismissed = value;
if (value) {
// Keep the dismissal into account when recording telemetry.
this.wasDismissed = true;
}
},
get dismissed() {
return this._dismissed;
},
/**
* Removes the notification and updates the popup accordingly if needed.
*/
remove: function Notification_remove() {
this.owner.remove(this);
},
get anchorElement() {
let iconBox = this.owner.iconBox;
let anchorElement = getAnchorFromBrowser(this.browser, this.anchorID);
if (!iconBox)
return anchorElement;
if (!anchorElement && this.anchorID)
anchorElement = iconBox.querySelector("#"+this.anchorID);
// Use a default anchor icon if it's available
if (!anchorElement)
anchorElement = iconBox.querySelector("#default-notification-icon") ||
iconBox;
return anchorElement;
},
reshow: function() {
this.owner._reshowNotifications(this.anchorElement, this.browser);
},
/**
* Adds a value to the specified histogram, that must be keyed by ID.
*/
_recordTelemetry(histogramId, value) {
if (this.isPrivate) {
// The reason why we don't record telemetry in private windows is because
// the available actions can be different from regular mode. The main
// difference is that all of the persistent permission options like
// "Always remember" aren't there, so they really need to be handled
// separately to avoid skewing results. For notifications with the same
// choices, there would be no reason not to record in private windows as
// well, but it's just simpler to use the same check for everything.
return;
}
let histogram = Services.telemetry.getKeyedHistogramById(histogramId);
histogram.add("(all)", value);
histogram.add(this.id, value);
},
/**
* Adds an enumerated value to the POPUP_NOTIFICATION_STATS histogram,
* ensuring that it is recorded at most once for each distinct Notification.
*
* Statistics for reopened notifications are recorded in separate buckets.
*
* @param value
* One of the TELEMETRY_STAT_ constants.
*/
_recordTelemetryStat(value) {
if (this.wasDismissed) {
value += TELEMETRY_STAT_REOPENED_OFFSET;
}
if (!this.recordedTelemetryStats.has(value)) {
this.recordedTelemetryStats.add(value);
this._recordTelemetry("POPUP_NOTIFICATION_STATS", value);
}
},
};
/**
* The PopupNotifications object manages popup notifications for a given browser
* window.
* @param tabbrowser
* window's <xul:tabbrowser/>. Used to observe tab switching events and
* for determining the active browser element.
* @param panel
* The <xul:panel/> element to use for notifications. The panel is
* populated with <popupnotification> children and displayed it as
* needed.
* @param iconBox
* Reference to a container element that should be hidden or
* unhidden when notifications are hidden or shown. It should be the
* parent of anchor elements whose IDs are passed to show().
* It is used as a fallback popup anchor if notifications specify
* invalid or non-existent anchor IDs.
*/
this.PopupNotifications = function PopupNotifications(tabbrowser, panel, iconBox) {
if (!(tabbrowser instanceof Ci.nsIDOMXULElement))
throw "Invalid tabbrowser";
if (iconBox && !(iconBox instanceof Ci.nsIDOMXULElement))
throw "Invalid iconBox";
if (!(panel instanceof Ci.nsIDOMXULElement))
throw "Invalid panel";
this.window = tabbrowser.ownerDocument.defaultView;
this.panel = panel;
this.tabbrowser = tabbrowser;
this.iconBox = iconBox;
this.buttonDelay = Services.prefs.getIntPref(PREF_SECURITY_DELAY);
this.panel.addEventListener("popuphidden", this, true);
this.window.addEventListener("activate", this, true);
if (this.tabbrowser.tabContainer)
this.tabbrowser.tabContainer.addEventListener("TabSelect", this, true);
}
PopupNotifications.prototype = {
window: null,
panel: null,
tabbrowser: null,
_iconBox: null,
set iconBox(iconBox) {
// Remove the listeners on the old iconBox, if needed
if (this._iconBox) {
this._iconBox.removeEventListener("click", this, false);
this._iconBox.removeEventListener("keypress", this, false);
}
this._iconBox = iconBox;
if (iconBox) {
iconBox.addEventListener("click", this, false);
iconBox.addEventListener("keypress", this, false);
}
},
get iconBox() {
return this._iconBox;
},
/**
* Retrieve a Notification object associated with the browser/ID pair.
* @param id
* The Notification ID to search for.
* @param browser
* The browser whose notifications should be searched. If null, the
* currently selected browser's notifications will be searched.
*
* @returns the corresponding Notification object, or null if no such
* notification exists.
*/
getNotification: function PopupNotifications_getNotification(id, browser) {
let n = null;
let notifications = this._getNotificationsForBrowser(browser || this.tabbrowser.selectedBrowser);
notifications.some(x => x.id == id && (n = x));
return n;
},
/**
* Adds a new popup notification.
* @param browser
* The <xul:browser> element associated with the notification. Must not
* be null.
* @param id
* A unique ID that identifies the type of notification (e.g.
* "geolocation"). Only one notification with a given ID can be visible
* at a time. If a notification already exists with the given ID, it
* will be replaced.
* @param message
* The text to be displayed in the notification.
* @param anchorID
* The ID of the element that should be used as this notification
* popup's anchor. May be null, in which case the notification will be
* anchored to the iconBox.
* @param mainAction
* A JavaScript object literal describing the notification button's
* action. If present, it must have the following properties:
* - label (string): the button's label.
* - accessKey (string): the button's accessKey.
* - callback (function): a callback to be invoked when the button is
* pressed.
* - [optional] dismiss (boolean): If this is true, the notification
* will be dismissed instead of removed after running the callback.
* If null, the notification will not have a button, and
* secondaryActions will be ignored.
* @param secondaryActions
* An optional JavaScript array describing the notification's alternate
* actions. The array should contain objects with the same properties
* as mainAction. These are used to populate the notification button's
* dropdown menu.
* @param options
* An options JavaScript object holding additional properties for the
* notification. The following properties are currently supported:
* persistence: An integer. The notification will not automatically
* dismiss for this many page loads.
* timeout: A time in milliseconds. The notification will not
* automatically dismiss before this time.
* persistWhileVisible:
* A boolean. If true, a visible notification will always
* persist across location changes.
* dismissed: Whether the notification should be added as a dismissed
* notification. Dismissed notifications can be activated
* by clicking on their anchorElement.
* eventCallback:
* Callback to be invoked when the notification changes
* state. The callback's first argument is a string
* identifying the state change:
* "dismissed": notification has been dismissed by the
* user (e.g. by clicking away or switching
* tabs)
* "removed": notification has been removed (due to
* location change or user action)
* "showing": notification is about to be shown
* (this can be fired multiple times as
* notifications are dismissed and re-shown)
* If the callback returns true, the notification
* will be dismissed.
* "shown": notification has been shown (this can be fired
* multiple times as notifications are dismissed
* and re-shown)
* "swapping": the docshell of the browser that created
* the notification is about to be swapped to
* another browser. A second parameter contains
* the browser that is receiving the docshell,
* so that the event callback can transfer stuff
* specific to this notification.
* If the callback returns true, the notification
* will be moved to the new browser.
* If the callback isn't implemented, returns false,
* or doesn't return any value, the notification
* will be removed.
* neverShow: Indicate that no popup should be shown for this
* notification. Useful for just showing the anchor icon.
* removeOnDismissal:
* Notifications with this parameter set to true will be
* removed when they would have otherwise been dismissed
* (i.e. any time the popup is closed due to user
* interaction).
* hideNotNow: If true, indicates that the 'Not Now' menuitem should
* not be shown. If 'Not Now' is hidden, it needs to be
* replaced by another 'do nothing' item, so providing at
* least one secondary action is required; and one of the
* actions needs to have the 'dismiss' property set to true.
* popupIconURL:
* A string. URL of the image to be displayed in the popup.
* Normally specified in CSS using list-style-image and the
* .popup-notification-icon[popupid=...] selector.
* learnMoreURL:
* A string URL. Setting this property will make the
* prompt display a "Learn More" link that, when clicked,
* opens the URL in a new tab.
* displayURI:
* The nsIURI of the page the notification came
* from. If present, this will be displayed above the message.
* If the nsIURI represents a file, the path will be displayed,
* otherwise the hostPort will be displayed.
* @returns the Notification object corresponding to the added notification.
*/
show: function PopupNotifications_show(browser, id, message, anchorID,
mainAction, secondaryActions, options) {
function isInvalidAction(a) {
return !a || !(typeof(a.callback) == "function") || !a.label || !a.accessKey;
}
if (!browser)
throw "PopupNotifications_show: invalid browser";
if (!id)
throw "PopupNotifications_show: invalid ID";
if (mainAction && isInvalidAction(mainAction))
throw "PopupNotifications_show: invalid mainAction";
if (secondaryActions && secondaryActions.some(isInvalidAction))
throw "PopupNotifications_show: invalid secondaryActions";
if (options && options.hideNotNow &&
(!secondaryActions || !secondaryActions.length ||
!secondaryActions.concat(mainAction).some(action => action.dismiss)))
throw "PopupNotifications_show: 'Not Now' item hidden without replacement";
let notification = new Notification(id, message, anchorID, mainAction,
secondaryActions, browser, this, options);
if (options && options.dismissed)
notification.dismissed = true;
let existingNotification = this.getNotification(id, browser);
if (existingNotification)
this._remove(existingNotification);
let notifications = this._getNotificationsForBrowser(browser);
notifications.push(notification);
let isActiveBrowser = this._isActiveBrowser(browser);
let fm = Cc["@mozilla.org/focus-manager;1"].getService(Ci.nsIFocusManager);
let isActiveWindow = fm.activeWindow == this.window;
if (isActiveBrowser) {
if (isActiveWindow) {
// show panel now
this._update(notifications, new Set([notification.anchorElement]), true);
} else {
// indicate attention and update the icon if necessary
if (!notification.dismissed) {
this.window.getAttention();
}
this._updateAnchorIcons(notifications, this._getAnchorsForNotifications(
notifications, notification.anchorElement));
this._notify("backgroundShow");
}
} else {
// Notify observers that we're not showing the popup (useful for testing)
this._notify("backgroundShow");
}
return notification;
},
/**
* Returns true if the notification popup is currently being displayed.
*/
get isPanelOpen() {
let panelState = this.panel.state;
return panelState == "showing" || panelState == "open";
},
/**
* Called by the consumer to indicate that a browser's location has changed,
* so that we can update the active notifications accordingly.
*/
locationChange: function PopupNotifications_locationChange(aBrowser) {
if (!aBrowser)
throw "PopupNotifications_locationChange: invalid browser";
let notifications = this._getNotificationsForBrowser(aBrowser);
notifications = notifications.filter(function (notification) {
// The persistWhileVisible option allows an open notification to persist
// across location changes
if (notification.options.persistWhileVisible &&
this.isPanelOpen) {
if ("persistence" in notification.options &&
notification.options.persistence)
notification.options.persistence--;
return true;
}
// The persistence option allows a notification to persist across multiple
// page loads
if ("persistence" in notification.options &&
notification.options.persistence) {
notification.options.persistence--;
return true;
}
// The timeout option allows a notification to persist until a certain time
if ("timeout" in notification.options &&
Date.now() <= notification.options.timeout) {
return true;
}
this._fireCallback(notification, NOTIFICATION_EVENT_REMOVED);
return false;
}, this);
this._setNotificationsForBrowser(aBrowser, notifications);
if (this._isActiveBrowser(aBrowser)) {
// get the anchor element if the browser has defined one so it will
// _update will handle both the tabs iconBox and non-tab permission
// anchors.
this._update(notifications, this._getAnchorsForNotifications(notifications,
getAnchorFromBrowser(aBrowser)));
}
},
/**
* Removes a Notification.
* @param notification
* The Notification object to remove.
*/
remove: function PopupNotifications_remove(notification) {
this._remove(notification);
if (this._isActiveBrowser(notification.browser)) {
let notifications = this._getNotificationsForBrowser(notification.browser);
this._update(notifications);
}
},
handleEvent: function (aEvent) {
switch (aEvent.type) {
case "popuphidden":
this._onPopupHidden(aEvent);
break;
case "activate":
case "TabSelect":
let self = this;
// This is where we could detect if the panel is dismissed if the page
// was switched. Unfortunately, the user usually has clicked elsewhere
// at this point so this value only gets recorded for programmatic
// reasons, like the "Learn More" link being clicked and resulting in a
// tab switch.
this.nextDismissReason = TELEMETRY_STAT_DISMISSAL_LEAVE_PAGE;
// setTimeout(..., 0) needed, otherwise openPopup from "activate" event
// handler results in the popup being hidden again for some reason...
this.window.setTimeout(function () {
self._update();
}, 0);
break;
case "click":
case "keypress":
this._onIconBoxCommand(aEvent);
break;
}
},
////////////////////////////////////////////////////////////////////////////////
// Utility methods
////////////////////////////////////////////////////////////////////////////////
_ignoreDismissal: null,
_currentAnchorElement: null,
/**
* Gets notifications for the currently selected browser.
*/
get _currentNotifications() {
return this.tabbrowser.selectedBrowser ? this._getNotificationsForBrowser(this.tabbrowser.selectedBrowser) : [];
},
_remove: function PopupNotifications_removeHelper(notification) {
// This notification may already be removed, in which case let's just fail
// silently.
let notifications = this._getNotificationsForBrowser(notification.browser);
if (!notifications)
return;
var index = notifications.indexOf(notification);
if (index == -1)
return;
if (this._isActiveBrowser(notification.browser))
notification.anchorElement.removeAttribute(ICON_ATTRIBUTE_SHOWING);
// remove the notification
notifications.splice(index, 1);
this._fireCallback(notification, NOTIFICATION_EVENT_REMOVED);
},
/**
* Dismisses the notification without removing it.
*/
_dismiss: function PopupNotifications_dismiss(telemetryReason) {
if (telemetryReason) {
this.nextDismissReason = telemetryReason;
}
let browser = this.panel.firstChild &&
this.panel.firstChild.notification.browser;
this.panel.hidePopup();
if (browser)
browser.focus();
},
/**
* Hides the notification popup.
*/
_hidePanel: function PopupNotifications_hide() {
if (this.panel.state == "closed") {
return Promise.resolve();
}
if (this._ignoreDismissal) {
return this._ignoreDismissal.promise;
}
let deferred = Promise.defer();
this._ignoreDismissal = deferred;
this.panel.hidePopup();
return deferred.promise;
},
/**
* Removes all notifications from the notification popup.
*/
_clearPanel: function () {
let popupnotification;
while ((popupnotification = this.panel.lastChild)) {
this.panel.removeChild(popupnotification);
// If this notification was provided by the chrome document rather than
// created ad hoc, move it back to where we got it from.
let originalParent = gNotificationParents.get(popupnotification);
if (originalParent) {
popupnotification.notification = null;
// Remove nodes dynamically added to the notification's menu button
// in _refreshPanel.
let contentNode = popupnotification.lastChild;
while (contentNode) {
let previousSibling = contentNode.previousSibling;
if (contentNode.nodeName == "menuitem" ||
contentNode.nodeName == "menuseparator")
popupnotification.removeChild(contentNode);
contentNode = previousSibling;
}
// Re-hide the notification such that it isn't rendered in the chrome
// document. _refreshPanel will unhide it again when needed.
popupnotification.hidden = true;
originalParent.appendChild(popupnotification);
}
}
},
_refreshPanel: function PopupNotifications_refreshPanel(notificationsToShow) {
this._clearPanel();
const XUL_NS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
notificationsToShow.forEach(function (n) {
let doc = this.window.document;
// Append "-notification" to the ID to try to avoid ID conflicts with other stuff
// in the document.
let popupnotificationID = n.id + "-notification";
// If the chrome document provides a popupnotification with this id, use
// that. Otherwise create it ad-hoc.
let popupnotification = doc.getElementById(popupnotificationID);
if (popupnotification)
gNotificationParents.set(popupnotification, popupnotification.parentNode);
else
popupnotification = doc.createElementNS(XUL_NS, "popupnotification");
popupnotification.setAttribute("label", n.message);
popupnotification.setAttribute("id", popupnotificationID);
popupnotification.setAttribute("popupid", n.id);
popupnotification.setAttribute("closebuttoncommand", `PopupNotifications._dismiss(${TELEMETRY_STAT_DISMISSAL_CLOSE_BUTTON});`);
if (n.mainAction) {
popupnotification.setAttribute("buttonlabel", n.mainAction.label);
popupnotification.setAttribute("buttonaccesskey", n.mainAction.accessKey);
popupnotification.setAttribute("buttoncommand", "PopupNotifications._onButtonEvent(event, 'buttoncommand');");
popupnotification.setAttribute("buttonpopupshown", "PopupNotifications._onButtonEvent(event, 'buttonpopupshown');");
popupnotification.setAttribute("learnmoreclick", "PopupNotifications._onButtonEvent(event, 'learnmoreclick');");
popupnotification.setAttribute("menucommand", "PopupNotifications._onMenuCommand(event);");
popupnotification.setAttribute("closeitemcommand", `PopupNotifications._dismiss(${TELEMETRY_STAT_DISMISSAL_NOT_NOW});event.stopPropagation();`);
} else {
popupnotification.removeAttribute("buttonlabel");
popupnotification.removeAttribute("buttonaccesskey");
popupnotification.removeAttribute("buttoncommand");
popupnotification.removeAttribute("buttonpopupshown");
popupnotification.removeAttribute("learnmoreclick");
popupnotification.removeAttribute("menucommand");
popupnotification.removeAttribute("closeitemcommand");
}
if (n.options.popupIconURL)
popupnotification.setAttribute("icon", n.options.popupIconURL);
if (n.options.learnMoreURL)
popupnotification.setAttribute("learnmoreurl", n.options.learnMoreURL);
else
popupnotification.removeAttribute("learnmoreurl");
if (n.options.displayURI) {
let uri;
try {
if (n.options.displayURI instanceof Ci.nsIFileURL) {
uri = n.options.displayURI.path;
} else {
uri = n.options.displayURI.hostPort;
}
popupnotification.setAttribute("origin", uri);
} catch (e) {
Cu.reportError(e);
popupnotification.removeAttribute("origin");
}
} else
popupnotification.removeAttribute("origin");
popupnotification.notification = n;
if (n.secondaryActions) {
let telemetryStatId = TELEMETRY_STAT_ACTION_2;
n.secondaryActions.forEach(function (a) {
let item = doc.createElementNS(XUL_NS, "menuitem");
item.setAttribute("label", a.label);
item.setAttribute("accesskey", a.accessKey);
item.notification = n;
item.action = a;
popupnotification.appendChild(item);
// We can only record a limited number of actions in telemetry. If
// there are more, the latest are all recorded in the last bucket.
item.action.telemetryStatId = telemetryStatId;
if (telemetryStatId < TELEMETRY_STAT_ACTION_LAST) {
telemetryStatId++;
}
}, this);
if (n.options.hideNotNow) {
popupnotification.setAttribute("hidenotnow", "true");
}
else if (n.secondaryActions.length) {
let closeItemSeparator = doc.createElementNS(XUL_NS, "menuseparator");
popupnotification.appendChild(closeItemSeparator);
}
}
this.panel.appendChild(popupnotification);
// The popupnotification may be hidden if we got it from the chrome
// document rather than creating it ad hoc.
popupnotification.hidden = false;
}, this);
},
_showPanel: function PopupNotifications_showPanel(notificationsToShow, anchorElement) {
this.panel.hidden = false;
notificationsToShow = notificationsToShow.filter(n => {
let dismiss = this._fireCallback(n, NOTIFICATION_EVENT_SHOWING);
if (dismiss)
n.dismissed = true;
return !dismiss;
});
if (!notificationsToShow.length)
return;
this._refreshPanel(notificationsToShow);
if (this.isPanelOpen && this._currentAnchorElement == anchorElement) {
notificationsToShow.forEach(function (n) {
this._fireCallback(n, NOTIFICATION_EVENT_SHOWN);
}, this);
return;
}
// If the panel is already open but we're changing anchors, we need to hide
// it first. Otherwise it can appear in the wrong spot. (_hidePanel is
// safe to call even if the panel is already hidden.)
let promise = this._hidePanel().then(() => {
// If the anchor element is hidden or null, use the tab as the anchor. We
// only ever show notifications for the current browser, so we can just use
// the current tab.
let selectedTab = this.tabbrowser.selectedTab;
if (anchorElement) {
let bo = anchorElement.boxObject;
if (bo.height == 0 && bo.width == 0)
anchorElement = selectedTab; // hidden
} else {
anchorElement = selectedTab; // null
}
this._currentAnchorElement = anchorElement;
// On OS X and Linux we need a different panel arrow color for
// click-to-play plugins, so copy the popupid and use css.
this.panel.setAttribute("popupid", this.panel.firstChild.getAttribute("popupid"));
notificationsToShow.forEach(function (n) {
// Record that the notification was actually displayed on screen.
// Notifications that were opened a second time or that were originally
// shown with "options.dismissed" will be recorded in a separate bucket.
n._recordTelemetryStat(TELEMETRY_STAT_OFFERED);
// Remember the time the notification was shown for the security delay.
n.timeShown = this.window.performance.now();
}, this);
// Unless the panel closing is triggered by a specific known code path,
// the next reason will be that the user clicked elsewhere.
this.nextDismissReason = TELEMETRY_STAT_DISMISSAL_CLICK_ELSEWHERE;
this.panel.openPopup(anchorElement, "bottomcenter topleft");
notificationsToShow.forEach(function (n) {
this._fireCallback(n, NOTIFICATION_EVENT_SHOWN);
}, this);
// This notification is used by tests to know when all the processing
// required to display the panel has happened.
this.panel.dispatchEvent(new this.window.CustomEvent("Shown"));
});
},
/**
* Updates the notification state in response to window activation or tab
* selection changes.
*
* @param notifications an array of Notification instances. if null,
* notifications will be retrieved off the current
* browser tab
* @param anchors is a XUL element or a Set of XUL elements that the
* notifications panel(s) will be anchored to.
* @param dismissShowing if true, dismiss any currently visible notifications
* if there are no notifications to show. Otherwise,
* currently displayed notifications will be left alone.
*/
_update: function PopupNotifications_update(notifications, anchors = new Set(), dismissShowing = false) {
if (anchors instanceof Ci.nsIDOMXULElement)
anchors = new Set([anchors]);
if (!notifications)
notifications = this._currentNotifications;
let haveNotifications = notifications.length > 0;
if (!anchors.size && haveNotifications)
anchors = this._getAnchorsForNotifications(notifications);
let useIconBox = !!this.iconBox;
if (useIconBox && anchors.size) {
for (let anchor of anchors) {
if (anchor.parentNode == this.iconBox)
continue;
useIconBox = false;
break;
}
}
// Filter out notifications that have been dismissed.
let notificationsToShow = notifications.filter(function (n) {
return !n.dismissed && !n.options.neverShow;
});
if (useIconBox) {
// Hide icons of the previous tab.
this._hideIcons();
}
if (haveNotifications) {
// Also filter out notifications that are for a different anchor.
notificationsToShow = notificationsToShow.filter(function (n) {
return anchors.has(n.anchorElement);
});
if (useIconBox) {
this._showIcons(notifications);
this.iconBox.hidden = false;
// Make sure that panels can only be attached to anchors of shown
// notifications inside an iconBox.
anchors = this._getAnchorsForNotifications(notificationsToShow);
} else if (anchors.size) {
this._updateAnchorIcons(notifications, anchors);
}
}
if (notificationsToShow.length > 0) {
for (let anchorElement of anchors) {
this._showPanel(notificationsToShow, anchorElement);
break;
}
} else {
// Notify observers that we're not showing the popup (useful for testing)
this._notify("updateNotShowing");
// Close the panel if there are no notifications to show.
// When called from PopupNotifications.show() we should never close the
// panel, however. It may just be adding a dismissed notification, in
// which case we want to continue showing any existing notifications.
if (!dismissShowing)
this._dismiss();
// Only hide the iconBox if we actually have no notifications (as opposed
// to not having any showable notifications)
if (!haveNotifications) {
if (useIconBox) {
this.iconBox.hidden = true;
} else if (anchors.size) {
for (let anchorElement of anchors)
anchorElement.removeAttribute(ICON_ATTRIBUTE_SHOWING);
}
}
}
},
_updateAnchorIcons: function PopupNotifications_updateAnchorIcons(notifications,
anchorElements) {
for (let anchorElement of anchorElements) {
anchorElement.setAttribute(ICON_ATTRIBUTE_SHOWING, "true");
// Use the anchorID as a class along with the default icon class as a
// fallback if anchorID is not defined in CSS. We always use the first
// notifications icon, so in the case of multiple notifications we'll
// only use the default icon.
if (anchorElement.classList.contains("notification-anchor-icon")) {
// remove previous icon classes
let className = anchorElement.className.replace(/([-\w]+-notification-icon\s?)/g,"")
if (notifications.length > 0) {
// Find the first notification this anchor used for.
let notification = notifications[0];
for (let n of notifications) {
if (n.anchorElement == anchorElement) {
notification = n;
break;
}
}
// With this notification we can better approximate the most fitting
// style.
className = notification.anchorID + " " + className;
}
anchorElement.className = className;
}
}
},
_showIcons: function PopupNotifications_showIcons(aCurrentNotifications) {
for (let notification of aCurrentNotifications) {
let anchorElm = notification.anchorElement;
if (anchorElm) {
anchorElm.setAttribute(ICON_ATTRIBUTE_SHOWING, "true");
}
}
},
_hideIcons: function PopupNotifications_hideIcons() {
let icons = this.iconBox.querySelectorAll(ICON_SELECTOR);
for (let icon of icons) {
icon.removeAttribute(ICON_ATTRIBUTE_SHOWING);
}
},
/**
* Gets and sets notifications for the browser.
*/
_getNotificationsForBrowser: function PopupNotifications_getNotifications(browser) {
let notifications = popupNotificationsMap.get(browser);
if (!notifications) {
// Initialize the WeakMap for the browser so callers can reference/manipulate the array.
notifications = [];
popupNotificationsMap.set(browser, notifications);
}
return notifications;
},
_setNotificationsForBrowser: function PopupNotifications_setNotifications(browser, notifications) {
popupNotificationsMap.set(browser, notifications);
return notifications;
},
_getAnchorsForNotifications: function PopupNotifications_getAnchorsForNotifications(notifications, defaultAnchor) {
let anchors = new Set();
for (let notification of notifications) {
if (notification.anchorElement)
anchors.add(notification.anchorElement)
}
if (defaultAnchor && !anchors.size)
anchors.add(defaultAnchor);
return anchors;
},
_isActiveBrowser: function (browser) {
// Note: This helper only exists, because in e10s builds,
// we can't access the docShell of a browser from chrome.
return browser.docShell
? browser.docShell.isActive
: (this.window.gBrowser.selectedBrowser == browser);
},
_onIconBoxCommand: function PopupNotifications_onIconBoxCommand(event) {
// Left click, space or enter only
let type = event.type;
if (type == "click" && event.button != 0)
return;
if (type == "keypress" &&
!(event.charCode == Ci.nsIDOMKeyEvent.DOM_VK_SPACE ||
event.keyCode == Ci.nsIDOMKeyEvent.DOM_VK_RETURN))
return;
if (this._currentNotifications.length == 0)
return;
// Get the anchor that is the immediate child of the icon box
let anchor = event.target;
while (anchor && anchor.parentNode != this.iconBox)
anchor = anchor.parentNode;
if (!anchor) {
return;
}
// If the panel is not closed, and the anchor is different, immediately mark all
// active notifications for the previous anchor as dismissed
if (this.panel.state != "closed" && anchor != this._currentAnchorElement) {
this._dismissOrRemoveCurrentNotifications();
}
// Ensure we move focus into the panel because it's opened through user interaction:
this.panel.removeAttribute("noautofocus", "true");
this._reshowNotifications(anchor);
},
_reshowNotifications: function PopupNotifications_reshowNotifications(anchor, browser) {
// Mark notifications anchored to this anchor as un-dismissed
let notifications = this._getNotificationsForBrowser(browser || this.tabbrowser.selectedBrowser);
notifications.forEach(function (n) {
if (n.anchorElement == anchor)
n.dismissed = false;
});
// ...and then show them.
this._update(notifications, anchor);
},
_swapBrowserNotifications: function PopupNotifications_swapBrowserNoficications(ourBrowser, otherBrowser) {
// When swaping browser docshells (e.g. dragging tab to new window) we need
// to update our notification map.
let ourNotifications = this._getNotificationsForBrowser(ourBrowser);
let other = otherBrowser.ownerDocument.defaultView.PopupNotifications;
if (!other) {
if (ourNotifications.length > 0)
Cu.reportError("unable to swap notifications: otherBrowser doesn't support notifications");
return;
}
let otherNotifications = other._getNotificationsForBrowser(otherBrowser);
if (ourNotifications.length < 1 && otherNotifications.length < 1) {
// No notification to swap.
return;
}
otherNotifications = otherNotifications.filter(n => {
if (this._fireCallback(n, NOTIFICATION_EVENT_SWAPPING, ourBrowser)) {
n.browser = ourBrowser;
n.owner = this;
return true;
}
other._fireCallback(n, NOTIFICATION_EVENT_REMOVED);
return false;
});
ourNotifications = ourNotifications.filter(n => {
if (this._fireCallback(n, NOTIFICATION_EVENT_SWAPPING, otherBrowser)) {
n.browser = otherBrowser;
n.owner = other;
return true;
}
this._fireCallback(n, NOTIFICATION_EVENT_REMOVED);
return false;
});
this._setNotificationsForBrowser(otherBrowser, ourNotifications);
other._setNotificationsForBrowser(ourBrowser, otherNotifications);
if (otherNotifications.length > 0)
this._update(otherNotifications);
if (ourNotifications.length > 0)
other._update(ourNotifications);
},
_fireCallback: function PopupNotifications_fireCallback(n, event, ...args) {
try {
if (n.options.eventCallback)
return n.options.eventCallback.call(n, event, ...args);
} catch (error) {
Cu.reportError(error);
}
return undefined;
},
_onPopupHidden: function PopupNotifications_onPopupHidden(event) {
if (event.target != this.panel || this._ignoreDismissal) {
if (this._ignoreDismissal) {
this._ignoreDismissal.resolve();
this._ignoreDismissal = null;
}
return;
}
// Ensure that when the panel comes up without user interaction,
// we don't autofocus it.
this.panel.setAttribute("noautofocus", "true");
this._dismissOrRemoveCurrentNotifications();
this._clearPanel();
this._update();
},
_dismissOrRemoveCurrentNotifications: function() {
let browser = this.panel.firstChild &&
this.panel.firstChild.notification.browser;
if (!browser)
return;
let notifications = this._getNotificationsForBrowser(browser);
// Mark notifications as dismissed and call dismissal callbacks
Array.forEach(this.panel.childNodes, function (nEl) {
let notificationObj = nEl.notification;
// Never call a dismissal handler on a notification that's been removed.
if (notifications.indexOf(notificationObj) == -1)
return;
// Record the time of the first notification dismissal if the main action
// was not triggered in the meantime.
let timeSinceShown = this.window.performance.now() - notificationObj.timeShown;
if (!notificationObj.wasDismissed &&
!notificationObj.recordedTelemetryMainAction) {
notificationObj._recordTelemetry("POPUP_NOTIFICATION_DISMISSAL_MS",
timeSinceShown);
}
notificationObj._recordTelemetryStat(this.nextDismissReason);
// Do not mark the notification as dismissed or fire NOTIFICATION_EVENT_DISMISSED
// if the notification is removed.
if (notificationObj.options.removeOnDismissal) {
this._remove(notificationObj);
} else {
notificationObj.dismissed = true;
this._fireCallback(notificationObj, NOTIFICATION_EVENT_DISMISSED);
}
}, this);
},
_onButtonEvent(event, type) {
// Need to find the associated notification object, which is a bit tricky
// since it isn't associated with the button directly - this is kind of
// gross and very dependent on the structure of the popupnotification
// binding's content.
let target = event.originalTarget;
let notificationEl;
let parent = target;
while (parent && (parent = target.ownerDocument.getBindingParent(parent)))
notificationEl = parent;
if (!notificationEl)
throw "PopupNotifications._onButtonEvent: couldn't find notification element";
if (!notificationEl.notification)
throw "PopupNotifications._onButtonEvent: couldn't find notification";
let notification = notificationEl.notification;
if (type == "buttonpopupshown") {
notification._recordTelemetryStat(TELEMETRY_STAT_OPEN_SUBMENU);
return;
}
if (type == "learnmoreclick") {
notification._recordTelemetryStat(TELEMETRY_STAT_LEARN_MORE);
return;
}
// Record the total timing of the main action since the notification was
// created, even if the notification was dismissed in the meantime.
let timeSinceCreated = this.window.performance.now() - notification.timeCreated;
if (!notification.recordedTelemetryMainAction) {
notification.recordedTelemetryMainAction = true;
notification._recordTelemetry("POPUP_NOTIFICATION_MAIN_ACTION_MS",
timeSinceCreated);
}
let timeSinceShown = this.window.performance.now() - notification.timeShown;
if (timeSinceShown < this.buttonDelay) {
Services.console.logStringMessage("PopupNotifications._onButtonEvent: " +
"Button click happened before the security delay: " +
timeSinceShown + "ms");
return;
}
notification._recordTelemetryStat(TELEMETRY_STAT_ACTION_1);
try {
notification.mainAction.callback.call();
} catch(error) {
Cu.reportError(error);
}
if (notification.mainAction.dismiss) {
this._dismiss();
return;
}
this._remove(notification);
this._update();
},
_onMenuCommand: function PopupNotifications_onMenuCommand(event) {
let target = event.originalTarget;
if (!target.action || !target.notification)
throw "menucommand target has no associated action/notification";
event.stopPropagation();
target.notification._recordTelemetryStat(target.action.telemetryStatId);
try {
target.action.callback.call();
} catch(error) {
Cu.reportError(error);
}
if (target.action.dismiss) {
this._dismiss();
return;
}
this._remove(target.notification);
this._update();
},
_notify: function PopupNotifications_notify(topic) {
Services.obs.notifyObservers(null, "PopupNotifications-" + topic, "");
},
};
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