forked from mirrors/gecko-dev
996 lines
33 KiB
JavaScript
996 lines
33 KiB
JavaScript
/* 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/. */
|
|
|
|
/*eslint-env browser*/
|
|
|
|
import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
|
|
|
|
const lazy = {};
|
|
XPCOMUtils.defineLazyModuleGetters(lazy, {
|
|
AboutWelcomeParent: "resource:///actors/AboutWelcomeParent.jsm",
|
|
ASRouter: "resource://activity-stream/lib/ASRouter.jsm",
|
|
PageEventManager: "resource://activity-stream/lib/PageEventManager.jsm",
|
|
});
|
|
|
|
const TRANSITION_MS = 500;
|
|
const CONTAINER_ID = "root";
|
|
const BUNDLE_SRC =
|
|
"resource://activity-stream/aboutwelcome/aboutwelcome.bundle.js";
|
|
|
|
/**
|
|
* Feature Callout fetches messages relevant to a given source and displays them
|
|
* in the parent page pointing to the element they describe.
|
|
*/
|
|
export class FeatureCallout {
|
|
/**
|
|
* @typedef {Object} FeatureCalloutOptions
|
|
* @property {Window} win window in which messages will be rendered
|
|
* @property {string} prefName name of the pref used to track progress through
|
|
* a given feature tour, e.g. "browser.pdfjs.feature-tour"
|
|
* @property {string} [page] string to pass as the page when requesting
|
|
* messages from ASRouter and sending telemetry. for browser chrome, the
|
|
* string "chrome" is used
|
|
* @property {MozBrowser} [browser] <browser> element responsible for the
|
|
* feature callout. for content pages, this is the browser element that the
|
|
* callout is being shown in. for chrome, this is the active browser
|
|
*/
|
|
|
|
/** @param {FeatureCalloutOptions} options */
|
|
constructor({ win, prefName, page, browser } = {}) {
|
|
this.win = win;
|
|
this.doc = win.document;
|
|
this.browser = browser || this.win.docShell.chromeEventHandler;
|
|
this.config = null;
|
|
this.loadingConfig = false;
|
|
this.message = null;
|
|
this.currentScreen = null;
|
|
this.renderObserver = null;
|
|
this.savedActiveElement = null;
|
|
this.ready = false;
|
|
this._positionListenersRegistered = false;
|
|
this.AWSetup = false;
|
|
this.page = page;
|
|
|
|
XPCOMUtils.defineLazyPreferenceGetter(
|
|
this,
|
|
"featureTourProgress",
|
|
prefName,
|
|
'{"screen":"","complete":true}',
|
|
this._handlePrefChange.bind(this),
|
|
val => JSON.parse(val)
|
|
);
|
|
|
|
XPCOMUtils.defineLazyPreferenceGetter(
|
|
this,
|
|
"cfrFeaturesUserPref",
|
|
"browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features",
|
|
true,
|
|
function(pref, previous, latest) {
|
|
if (latest) {
|
|
this.showFeatureCallout();
|
|
} else {
|
|
this._handlePrefChange();
|
|
}
|
|
}.bind(this)
|
|
);
|
|
this.featureTourProgress; // Load initial value of progress pref
|
|
|
|
// When the window is focused, ensure tour is synced with tours in any other
|
|
// instances of the parent page. This does not apply when the Callout is
|
|
// shown in the browser chrome.
|
|
if (this.page !== "chrome") {
|
|
this.win.addEventListener("visibilitychange", this);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the page event manager and instantiate it if necessary. Only used by
|
|
* _attachPageEventListeners, since we don't want to do this unnecessary work
|
|
* if a message with page event listeners hasn't loaded. Other consumers
|
|
* should use `this._pageEventManager?.property` instead.
|
|
*/
|
|
get _loadPageEventManager() {
|
|
if (!this._pageEventManager) {
|
|
this._pageEventManager = new lazy.PageEventManager(this.doc);
|
|
}
|
|
return this._pageEventManager;
|
|
}
|
|
|
|
_addPositionListeners() {
|
|
if (!this._positionListenersRegistered) {
|
|
this.win.addEventListener("resize", this);
|
|
const parentEl = this.doc.querySelector(
|
|
this.currentScreen?.parent_selector
|
|
);
|
|
parentEl?.addEventListener("toggle", this);
|
|
this._positionListenersRegistered = true;
|
|
}
|
|
}
|
|
|
|
_removePositionListeners() {
|
|
if (this._positionListenersRegistered) {
|
|
this.win.removeEventListener("resize", this);
|
|
const parentEl = this.doc.querySelector(
|
|
this.currentScreen?.parent_selector
|
|
);
|
|
parentEl?.removeEventListener("toggle", this);
|
|
this._positionListenersRegistered = false;
|
|
}
|
|
}
|
|
|
|
async _handlePrefChange() {
|
|
if (this.doc.visibilityState === "hidden" || !this.featureTourProgress) {
|
|
return;
|
|
}
|
|
|
|
// If we have more than one screen, it means that we're
|
|
// displaying a feature tour, and transitions are handled
|
|
// based on the value of a tour progress pref. Otherwise,
|
|
// just show the feature callout.
|
|
if (this.config?.screens.length === 1) {
|
|
this.showFeatureCallout();
|
|
return;
|
|
}
|
|
|
|
// If a pref change results from an event in a Spotlight message,
|
|
// reload the page to clear the Spotlight and initialize the
|
|
// feature callout with the next message in the tour.
|
|
if (this.currentScreen == "spotlight") {
|
|
this.win.location.reload();
|
|
return;
|
|
}
|
|
|
|
let prefVal = this.featureTourProgress;
|
|
// End the tour according to the tour progress pref or if the user disabled
|
|
// contextual feature recommendations.
|
|
if (prefVal.complete || !this.cfrFeaturesUserPref) {
|
|
this.endTour();
|
|
this.currentScreen = null;
|
|
} else if (prefVal.screen !== this.currentScreen?.id) {
|
|
this.ready = false;
|
|
const container = this.doc.getElementById(CONTAINER_ID);
|
|
container?.classList.add("hidden");
|
|
this._pageEventManager?.clear();
|
|
// wait for fade out transition
|
|
this.win.setTimeout(async () => {
|
|
await this._loadConfig();
|
|
container?.remove();
|
|
this._removePositionListeners();
|
|
this.doc.querySelector(`[src="${BUNDLE_SRC}"]`)?.remove();
|
|
await this._renderCallout();
|
|
}, TRANSITION_MS);
|
|
}
|
|
}
|
|
|
|
handleEvent(event) {
|
|
switch (event.type) {
|
|
case "focus": {
|
|
let container = this.doc.getElementById(CONTAINER_ID);
|
|
if (!container) {
|
|
return;
|
|
}
|
|
// If focus has fired on the feature callout window itself, or on something
|
|
// contained in that window, ignore it, as we can't possibly place the focus
|
|
// on it after the callout is closd.
|
|
if (
|
|
event.target.id === CONTAINER_ID ||
|
|
(Node.isInstance(event.target) && container.contains(event.target))
|
|
) {
|
|
return;
|
|
}
|
|
// Save this so that if the next focus event is re-entering the popup,
|
|
// then we'll put the focus back here where the user left it once we exit
|
|
// the feature callout series.
|
|
this.savedActiveElement = this.doc.activeElement;
|
|
break;
|
|
}
|
|
|
|
case "keypress": {
|
|
if (event.key !== "Escape") {
|
|
return;
|
|
}
|
|
let container = this.doc.getElementById(CONTAINER_ID);
|
|
if (!container) {
|
|
return;
|
|
}
|
|
let focusedElement =
|
|
this.page === "chrome"
|
|
? Services.focus.focusedElement
|
|
: this.doc.activeElement;
|
|
// If the window has a focused element, let it handle the ESC key instead.
|
|
if (
|
|
!focusedElement ||
|
|
focusedElement === this.doc.body ||
|
|
focusedElement === this.browser ||
|
|
container.contains(focusedElement)
|
|
) {
|
|
this.win.AWSendEventTelemetry?.({
|
|
event: "DISMISS",
|
|
event_context: {
|
|
source: `KEY_${event.key}`,
|
|
page: this.page,
|
|
},
|
|
message_id: this.config?.id.toUpperCase(),
|
|
});
|
|
this._dismiss();
|
|
event.preventDefault();
|
|
}
|
|
break;
|
|
}
|
|
|
|
case "visibilitychange":
|
|
this._handlePrefChange();
|
|
break;
|
|
|
|
case "resize":
|
|
case "toggle":
|
|
this._positionCallout();
|
|
break;
|
|
|
|
default:
|
|
}
|
|
}
|
|
|
|
_addCalloutLinkElements() {
|
|
const addStylesheet = href => {
|
|
if (this.doc.querySelector(`link[href="${href}"]`)) {
|
|
return;
|
|
}
|
|
const link = this.doc.head.appendChild(this.doc.createElement("link"));
|
|
link.rel = "stylesheet";
|
|
link.href = href;
|
|
};
|
|
const addLocalization = hrefs => {
|
|
hrefs.forEach(href => {
|
|
// eslint-disable-next-line no-undef
|
|
this.win.MozXULElement.insertFTLIfNeeded(href);
|
|
});
|
|
};
|
|
|
|
// Update styling to be compatible with about:welcome bundle
|
|
addStylesheet(
|
|
"chrome://activity-stream/content/aboutwelcome/aboutwelcome.css"
|
|
);
|
|
|
|
addLocalization([
|
|
"browser/newtab/onboarding.ftl",
|
|
"browser/spotlight.ftl",
|
|
"branding/brand.ftl",
|
|
"toolkit/branding/brandings.ftl",
|
|
"browser/newtab/asrouter.ftl",
|
|
"browser/featureCallout.ftl",
|
|
]);
|
|
}
|
|
|
|
_createContainer() {
|
|
let parent = this.doc.querySelector(this.currentScreen?.parent_selector);
|
|
// Don't render the callout if the parent element is not present.
|
|
// This means the message was misconfigured, mistargeted, or the
|
|
// content of the parent page is not as expected.
|
|
if (!parent && !this.currentScreen?.content.callout_position_override) {
|
|
if (this.message?.template === "feature_callout") {
|
|
Services.telemetry.recordEvent(
|
|
"messaging_experiments",
|
|
"feature_callout",
|
|
"create_failed",
|
|
`${this.message.id || "no_message"}-${this.currentScreen
|
|
?.parent_selector || "no_current_screen"}`
|
|
);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
let container = this.doc.createElement("div");
|
|
container.classList.add(
|
|
"onboardingContainer",
|
|
"featureCallout",
|
|
"callout-arrow",
|
|
"hidden"
|
|
);
|
|
container.id = CONTAINER_ID;
|
|
// This value is reported as the "page" in about:welcome telemetry
|
|
container.dataset.page = this.page;
|
|
container.setAttribute(
|
|
"aria-describedby",
|
|
`#${CONTAINER_ID} .welcome-text`
|
|
);
|
|
container.tabIndex = 0;
|
|
this.doc.body.prepend(container);
|
|
return container;
|
|
}
|
|
|
|
/**
|
|
* Set callout's position relative to parent element
|
|
*/
|
|
_positionCallout() {
|
|
const container = this.doc.getElementById(CONTAINER_ID);
|
|
const parentEl = this.doc.querySelector(
|
|
this.currentScreen?.parent_selector
|
|
);
|
|
const doc = this.doc;
|
|
// All possible arrow positions
|
|
// If the position contains a dash, the value before the dash
|
|
// refers to which edge of the feature callout the arrow points
|
|
// from. The value after the dash describes where along that edge
|
|
// the arrow sits, with middle as the default.
|
|
const arrowPositions = [
|
|
"top",
|
|
"bottom",
|
|
"end",
|
|
"start",
|
|
"top-end",
|
|
"top-start",
|
|
];
|
|
const arrowPosition = this.currentScreen?.content?.arrow_position || "top";
|
|
// Callout should overlap the parent element by 17px (so the box, not
|
|
// including the arrow, will overlap by 5px)
|
|
const arrowWidth = 12;
|
|
let overlap = 17;
|
|
// If we have no overlap, we send the callout the same number of pixels
|
|
// in the opposite direction
|
|
overlap = this.currentScreen?.content?.noCalloutOverlap
|
|
? overlap * -1
|
|
: overlap;
|
|
overlap -= arrowWidth;
|
|
// Is the document layout right to left?
|
|
const RTL = this.doc.dir === "rtl";
|
|
const customPosition = this.currentScreen?.content
|
|
.callout_position_override;
|
|
|
|
// Early exit if the container doesn't exist,
|
|
// or if we're missing a parent element and don't have a custom callout position
|
|
if (!container || (!parentEl && !customPosition)) {
|
|
return;
|
|
}
|
|
|
|
const getOffset = el => {
|
|
const rect = el.getBoundingClientRect();
|
|
return {
|
|
left: rect.left + this.win.scrollX,
|
|
right: rect.right + this.win.scrollX,
|
|
top: rect.top + this.win.scrollY,
|
|
bottom: rect.bottom + this.win.scrollY,
|
|
};
|
|
};
|
|
|
|
const clearPosition = () => {
|
|
Object.keys(positioners).forEach(position => {
|
|
container.style[position] = "unset";
|
|
});
|
|
arrowPositions.forEach(position => {
|
|
if (container.classList.contains(`arrow-${position}`)) {
|
|
container.classList.remove(`arrow-${position}`);
|
|
}
|
|
if (container.classList.contains(`arrow-inline-${position}`)) {
|
|
container.classList.remove(`arrow-inline-${position}`);
|
|
}
|
|
});
|
|
};
|
|
|
|
const addArrowPositionClassToContainer = finalArrowPosition => {
|
|
let className;
|
|
switch (finalArrowPosition) {
|
|
case "bottom":
|
|
className = "arrow-bottom";
|
|
break;
|
|
case "left":
|
|
className = "arrow-inline-start";
|
|
break;
|
|
case "right":
|
|
className = "arrow-inline-end";
|
|
break;
|
|
case "top-start":
|
|
className = RTL ? "arrow-top-end" : "arrow-top-start";
|
|
break;
|
|
case "top-end":
|
|
className = RTL ? "arrow-top-start" : "arrow-top-end";
|
|
break;
|
|
case "top":
|
|
default:
|
|
className = "arrow-top";
|
|
break;
|
|
}
|
|
|
|
container.classList.add(className);
|
|
};
|
|
|
|
const addValueToPixelValue = (value, pixelValue) => {
|
|
return `${Number(pixelValue.split("px")[0]) + value}px`;
|
|
};
|
|
|
|
const subtractPixelValueFromValue = (pixelValue, value) => {
|
|
return `${value - Number(pixelValue.split("px")[0])}px`;
|
|
};
|
|
|
|
const overridePosition = () => {
|
|
// We override _every_ positioner here, because we want to manually set all
|
|
// container.style.positions in every positioner's "position" function
|
|
// regardless of the actual arrow position
|
|
// Note: We override the position functions with new functions here,
|
|
// but they don't actually get executed until the respective position functions are called
|
|
// and this function is not executed unless the message has a custom position property.
|
|
|
|
// We're positioning relative to a parent element's bounds,
|
|
// if that parent element exists.
|
|
|
|
for (const position in positioners) {
|
|
positioners[position].position = () => {
|
|
if (customPosition.top) {
|
|
container.style.top = addValueToPixelValue(
|
|
parentEl.getBoundingClientRect().top,
|
|
customPosition.top
|
|
);
|
|
}
|
|
|
|
if (customPosition.left) {
|
|
const leftPosition = addValueToPixelValue(
|
|
parentEl.getBoundingClientRect().left,
|
|
customPosition.left
|
|
);
|
|
|
|
RTL
|
|
? (container.style.right = leftPosition)
|
|
: (container.style.left = leftPosition);
|
|
}
|
|
|
|
if (customPosition.right) {
|
|
const rightPosition = subtractPixelValueFromValue(
|
|
customPosition.right,
|
|
parentEl.getBoundingClientRect().right - container.clientWidth
|
|
);
|
|
|
|
RTL
|
|
? (container.style.right = rightPosition)
|
|
: (container.style.left = rightPosition);
|
|
}
|
|
|
|
if (customPosition.bottom) {
|
|
container.style.top = subtractPixelValueFromValue(
|
|
customPosition.bottom,
|
|
parentEl.getBoundingClientRect().bottom - container.clientHeight
|
|
);
|
|
}
|
|
};
|
|
}
|
|
};
|
|
|
|
const positioners = {
|
|
// availableSpace should be the space between the edge of the page in the assumed direction
|
|
// and the edge of the parent (with the callout being intended to fit between those two edges)
|
|
// while needed space should be the space necessary to fit the callout container
|
|
top: {
|
|
availableSpace() {
|
|
return (
|
|
doc.documentElement.clientHeight -
|
|
getOffset(parentEl).top -
|
|
parentEl.clientHeight
|
|
);
|
|
},
|
|
neededSpace: container.clientHeight - overlap,
|
|
position() {
|
|
// Point to an element above the callout
|
|
let containerTop =
|
|
getOffset(parentEl).top + parentEl.clientHeight - overlap;
|
|
container.style.top = `${Math.max(0, containerTop)}px`;
|
|
alignHorizontally("center");
|
|
},
|
|
},
|
|
bottom: {
|
|
availableSpace() {
|
|
return getOffset(parentEl).top;
|
|
},
|
|
neededSpace: container.clientHeight - overlap,
|
|
position() {
|
|
// Point to an element below the callout
|
|
let containerTop =
|
|
getOffset(parentEl).top - container.clientHeight + overlap;
|
|
container.style.top = `${Math.max(0, containerTop)}px`;
|
|
alignHorizontally("center");
|
|
},
|
|
},
|
|
right: {
|
|
availableSpace() {
|
|
return getOffset(parentEl).left;
|
|
},
|
|
neededSpace: container.clientWidth - overlap,
|
|
position() {
|
|
// Point to an element to the right of the callout
|
|
let containerLeft =
|
|
getOffset(parentEl).left - container.clientWidth + overlap;
|
|
container.style.left = `${Math.max(0, containerLeft)}px`;
|
|
if (container.offsetHeight <= parentEl.offsetHeight) {
|
|
container.style.top = `${getOffset(parentEl).top}px`;
|
|
} else {
|
|
centerVertically();
|
|
}
|
|
},
|
|
},
|
|
left: {
|
|
availableSpace() {
|
|
return doc.documentElement.clientWidth - getOffset(parentEl).right;
|
|
},
|
|
neededSpace: container.clientWidth - overlap,
|
|
position() {
|
|
// Point to an element to the left of the callout
|
|
let containerLeft =
|
|
getOffset(parentEl).left + parentEl.clientWidth - overlap;
|
|
container.style.left = `${Math.max(0, containerLeft)}px`;
|
|
if (container.offsetHeight <= parentEl.offsetHeight) {
|
|
container.style.top = `${getOffset(parentEl).top}px`;
|
|
} else {
|
|
centerVertically();
|
|
}
|
|
},
|
|
},
|
|
"top-start": {
|
|
availableSpace() {
|
|
doc.documentElement.clientHeight -
|
|
getOffset(parentEl).top -
|
|
parentEl.clientHeight;
|
|
},
|
|
neededSpace: container.clientHeight - overlap,
|
|
position() {
|
|
// Point to an element above and at the start of the callout
|
|
let containerTop =
|
|
getOffset(parentEl).top + parentEl.clientHeight - overlap;
|
|
container.style.top = `${Math.max(
|
|
container.clientHeight - overlap,
|
|
containerTop
|
|
)}px`;
|
|
alignHorizontally("start");
|
|
},
|
|
},
|
|
"top-end": {
|
|
availableSpace() {
|
|
doc.documentElement.clientHeight -
|
|
getOffset(parentEl).top -
|
|
parentEl.clientHeight;
|
|
},
|
|
neededSpace: container.clientHeight - overlap,
|
|
position() {
|
|
// Point to an element above and at the end of the callout
|
|
let containerTop =
|
|
getOffset(parentEl).top + parentEl.clientHeight - overlap;
|
|
container.style.top = `${Math.max(
|
|
container.clientHeight - overlap,
|
|
containerTop
|
|
)}px`;
|
|
alignHorizontally("end");
|
|
},
|
|
},
|
|
};
|
|
|
|
const calloutFits = position => {
|
|
// Does callout element fit in this position relative
|
|
// to the parent element without going off screen?
|
|
|
|
// Only consider which edge of the callout the arrow points from,
|
|
// not the alignment of the arrow along the edge of the callout
|
|
let edgePosition = position.split("-")[0];
|
|
return (
|
|
positioners[edgePosition].availableSpace() >
|
|
positioners[edgePosition].neededSpace
|
|
);
|
|
};
|
|
|
|
const choosePosition = () => {
|
|
let position = arrowPosition;
|
|
if (!arrowPositions.includes(position)) {
|
|
// Configured arrow position is not valid
|
|
return false;
|
|
}
|
|
if (["start", "end"].includes(position)) {
|
|
// position here is referencing the direction that the callout container
|
|
// is pointing to, and therefore should be the _opposite_ side of the arrow
|
|
// eg. if arrow is at the "end" in LTR layouts, the container is pointing
|
|
// at an element to the right of itself, while in RTL layouts it is pointing to the left of itself
|
|
position = RTL ^ (position === "start") ? "left" : "right";
|
|
}
|
|
// If we're overriding the position, we don't need to sort for available space
|
|
if (customPosition || calloutFits(position)) {
|
|
return position;
|
|
}
|
|
let sortedPositions = Object.keys(positioners)
|
|
.filter(p => p !== position)
|
|
.filter(calloutFits)
|
|
.sort((a, b) => {
|
|
return (
|
|
positioners[b].availableSpace() - positioners[b].neededSpace >
|
|
positioners[a].availableSpace() - positioners[a].neededSpace
|
|
);
|
|
});
|
|
// If the callout doesn't fit in any position, use the configured one.
|
|
// The callout will be adjusted to overlap the parent element so that
|
|
// the former doesn't go off screen.
|
|
return sortedPositions[0] || position;
|
|
};
|
|
|
|
const centerVertically = () => {
|
|
let topOffset = (container.offsetHeight - parentEl.offsetHeight) / 2;
|
|
container.style.top = `${getOffset(parentEl).top - topOffset}px`;
|
|
};
|
|
|
|
/**
|
|
* Horizontally align a top/bottom-positioned callout according to the
|
|
* passed position.
|
|
* @param {string} [position = "start"] <"start"|"end"|"center">
|
|
*/
|
|
const alignHorizontally = position => {
|
|
switch (position) {
|
|
case "center": {
|
|
let sideOffset = (parentEl.clientWidth - container.clientWidth) / 2;
|
|
let containerSide = RTL
|
|
? doc.documentElement.clientWidth -
|
|
getOffset(parentEl).right +
|
|
sideOffset
|
|
: getOffset(parentEl).left + sideOffset;
|
|
container.style[RTL ? "right" : "left"] = `${Math.max(
|
|
containerSide,
|
|
0
|
|
)}px`;
|
|
break;
|
|
}
|
|
default: {
|
|
let containerSide =
|
|
RTL ^ (position === "end")
|
|
? parentEl.getBoundingClientRect().left +
|
|
parentEl.clientWidth -
|
|
container.clientWidth
|
|
: parentEl.getBoundingClientRect().left;
|
|
container.style.left = `${Math.max(containerSide, 0)}px`;
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
clearPosition(container);
|
|
|
|
if (customPosition) {
|
|
overridePosition();
|
|
}
|
|
|
|
let finalPosition = choosePosition();
|
|
if (finalPosition) {
|
|
positioners[finalPosition].position();
|
|
addArrowPositionClassToContainer(finalPosition);
|
|
}
|
|
|
|
container.classList.remove("hidden");
|
|
}
|
|
|
|
/** Expose top level functions expected by the aboutwelcome bundle. */
|
|
_setupWindowFunctions() {
|
|
if (this.AWSetup) {
|
|
return;
|
|
}
|
|
const AWParent = new lazy.AboutWelcomeParent();
|
|
this.win.addEventListener("unload", () => {
|
|
AWParent.didDestroy();
|
|
});
|
|
const receive = name => data =>
|
|
AWParent.onContentMessage(`AWPage:${name}`, data, this.doc);
|
|
this.win.AWGetFeatureConfig = () => this.config;
|
|
this.win.AWGetSelectedTheme = receive("GET_SELECTED_THEME");
|
|
// Do not send telemetry if message config sets metrics as 'block'.
|
|
if (this.config?.metrics !== "block") {
|
|
this.win.AWSendEventTelemetry = receive("TELEMETRY_EVENT");
|
|
}
|
|
this.win.AWSendToDeviceEmailsSupported = receive(
|
|
"SEND_TO_DEVICE_EMAILS_SUPPORTED"
|
|
);
|
|
this.win.AWSendToParent = (name, data) => receive(name)(data);
|
|
this.win.AWFinish = () => {
|
|
this.endTour();
|
|
};
|
|
this.AWSetup = true;
|
|
}
|
|
|
|
/** Clean up the functions defined above. */
|
|
_clearWindowFunctions() {
|
|
const windowFuncs = [
|
|
"AWGetFeatureConfig",
|
|
"AWGetSelectedTheme",
|
|
"AWSendEventTelemetry",
|
|
"AWSendToDeviceEmailsSupported",
|
|
"AWSendToParent",
|
|
"AWFinish",
|
|
];
|
|
windowFuncs.forEach(func => delete this.win[func]);
|
|
}
|
|
|
|
endTour(skipFadeOut = false) {
|
|
// We don't want focus events that happen during teardown to affect
|
|
// this.savedActiveElement
|
|
this.win.removeEventListener("focus", this, {
|
|
capture: true,
|
|
passive: true,
|
|
});
|
|
this.win.removeEventListener("keypress", this, { capture: true });
|
|
this._pageEventManager?.clear();
|
|
|
|
// We're deleting featureTourProgress here to ensure that the
|
|
// reference is freed for garbage collection. This prevents errors
|
|
// caused by lingering instances when instantiating and removing
|
|
// multiple feature tour instances in succession.
|
|
delete this.featureTourProgress;
|
|
this.ready = false;
|
|
// wait for fade out transition
|
|
let container = this.doc.getElementById(CONTAINER_ID);
|
|
container?.classList.add("hidden");
|
|
this._clearWindowFunctions();
|
|
this.win.setTimeout(
|
|
() => {
|
|
container?.remove();
|
|
this.renderObserver?.disconnect();
|
|
this._removePositionListeners();
|
|
this.doc.querySelector(`[src="${BUNDLE_SRC}"]`)?.remove();
|
|
// Put the focus back to the last place the user focused outside of the
|
|
// featureCallout windows.
|
|
if (this.savedActiveElement) {
|
|
this.savedActiveElement.focus({ focusVisible: true });
|
|
}
|
|
},
|
|
skipFadeOut ? 0 : TRANSITION_MS
|
|
);
|
|
}
|
|
|
|
_dismiss() {
|
|
let action = this.currentScreen?.content.dismiss_button?.action;
|
|
if (action?.type) {
|
|
this.win.AWSendToParent("SPECIAL_ACTION", action);
|
|
} else {
|
|
this.endTour();
|
|
}
|
|
}
|
|
|
|
async _addScriptsAndRender() {
|
|
const reactSrc = "resource://activity-stream/vendor/react.js";
|
|
const domSrc = "resource://activity-stream/vendor/react-dom.js";
|
|
// Add React script
|
|
const getReactReady = async () => {
|
|
return new Promise(resolve => {
|
|
let reactScript = this.doc.createElement("script");
|
|
reactScript.src = reactSrc;
|
|
this.doc.head.appendChild(reactScript);
|
|
reactScript.addEventListener("load", resolve);
|
|
});
|
|
};
|
|
// Add ReactDom script
|
|
const getDomReady = async () => {
|
|
return new Promise(resolve => {
|
|
let domScript = this.doc.createElement("script");
|
|
domScript.src = domSrc;
|
|
this.doc.head.appendChild(domScript);
|
|
domScript.addEventListener("load", resolve);
|
|
});
|
|
};
|
|
// Load React, then React Dom
|
|
if (!this.doc.querySelector(`[src="${reactSrc}"]`)) {
|
|
await getReactReady();
|
|
}
|
|
if (!this.doc.querySelector(`[src="${domSrc}"]`)) {
|
|
await getDomReady();
|
|
}
|
|
// Load the bundle to render the content as configured.
|
|
this.doc.querySelector(`[src="${BUNDLE_SRC}"]`)?.remove();
|
|
let bundleScript = this.doc.createElement("script");
|
|
bundleScript.src = BUNDLE_SRC;
|
|
this.doc.head.appendChild(bundleScript);
|
|
}
|
|
|
|
_observeRender(container) {
|
|
this.renderObserver?.observe(container, { childList: true });
|
|
}
|
|
|
|
/**
|
|
* Request a message from ASRouter, targeting the `browser` and `page` values
|
|
* passed to the constructor. The message content is stored in this.config,
|
|
* which is returned by AWGetFeatureConfig. The aboutwelcome bundle will use
|
|
* that function to get the content. It will only be called when the bundle
|
|
* loads, so the bundle must be reloaded for a new message to be rendered.
|
|
* @returns {Promise<boolean>} true if a message is loaded, false if not.
|
|
*/
|
|
async _loadConfig() {
|
|
if (this.loadingConfig) {
|
|
return false;
|
|
}
|
|
this.loadingConfig = true;
|
|
await lazy.ASRouter.waitForInitialized;
|
|
let result = await lazy.ASRouter.sendTriggerMessage({
|
|
browser: this.browser,
|
|
// triggerId and triggerContext
|
|
id: "featureCalloutCheck",
|
|
context: { source: this.page },
|
|
});
|
|
this.message = result.message;
|
|
this.loadingConfig = false;
|
|
|
|
if (result.message.template !== "feature_callout") {
|
|
// If another message type, like a Spotlight modal, is included
|
|
// in the tour, save the template name as the current screen.
|
|
this.currentScreen = result.message.template;
|
|
return false;
|
|
}
|
|
|
|
this.config = result.message.content;
|
|
|
|
let newScreen = this.config?.screens?.[this.config?.startScreen || 0];
|
|
if (newScreen?.id === this.currentScreen?.id) {
|
|
return false;
|
|
}
|
|
|
|
// Only add an impression if we actually have a message to impress
|
|
if (Object.keys(result.message).length) {
|
|
lazy.ASRouter.addImpression(result.message);
|
|
}
|
|
|
|
this.currentScreen = newScreen;
|
|
return true;
|
|
}
|
|
|
|
async _renderCallout() {
|
|
let container = this._createContainer();
|
|
if (container) {
|
|
// This results in rendering the Feature Callout
|
|
await this._addScriptsAndRender();
|
|
this._observeRender(container);
|
|
this._addPositionListeners();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* For each member of the screen's page_event_listeners array, add a listener.
|
|
* @param {Array<PageEventListener>} listeners An array of listeners to set up
|
|
*
|
|
* @typedef {Object} PageEventListener
|
|
* @property {PageEventListenerParams} params Event listener parameters
|
|
* @property {PageEventListenerAction} action Sent when the event fires
|
|
*
|
|
* @typedef {Object} PageEventListenerParams See PageEventManager.jsm
|
|
* @property {String} type Event type string e.g. `click`
|
|
* @property {String} selectors Target selector, e.g. `tag.class, #id[attr]`
|
|
* @property {PageEventListenerOptions} [options] addEventListener options
|
|
*
|
|
* @typedef {Object} PageEventListenerOptions
|
|
* @property {Boolean} [capture] Use event capturing phase?
|
|
* @property {Boolean} [once] Remove listener after first event?
|
|
* @property {Boolean} [preventDefault] Prevent default action?
|
|
*
|
|
* @typedef {Object} PageEventListenerAction Action sent to AboutWelcomeParent
|
|
* @property {String} [type] Action type, e.g. `OPEN_URL`
|
|
* @property {Object} [data] Extra data, properties depend on action type
|
|
* @property {Boolean} [dismiss] Dismiss screen after performing action?
|
|
*/
|
|
_attachPageEventListeners(listeners) {
|
|
listeners?.forEach(({ params, action }) =>
|
|
this._loadPageEventManager[params.options?.once ? "once" : "on"](
|
|
params,
|
|
event => {
|
|
this._handlePageEventAction(action, event);
|
|
if (params.options?.preventDefault) {
|
|
event.preventDefault?.();
|
|
}
|
|
}
|
|
)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Perform an action in response to a page event.
|
|
* @param {PageEventListenerAction} action
|
|
* @param {Event} event Triggering event
|
|
*/
|
|
_handlePageEventAction(action, event) {
|
|
const page = this.page;
|
|
const message_id = this.config?.id.toUpperCase();
|
|
const source = this._getUniqueElementIdentifier(event.target);
|
|
this.win.AWSendEventTelemetry?.({
|
|
event: "PAGE_EVENT",
|
|
event_context: {
|
|
action: action.type ?? (action.dismiss ? "DISMISS" : ""),
|
|
reason: event.type?.toUpperCase(),
|
|
source,
|
|
page,
|
|
},
|
|
message_id,
|
|
});
|
|
if (action.type) {
|
|
this.win.AWSendToParent("SPECIAL_ACTION", action);
|
|
}
|
|
if (action.dismiss) {
|
|
this.win.AWSendEventTelemetry?.({
|
|
event: "DISMISS",
|
|
event_context: { source: `PAGE_EVENT:${source}`, page },
|
|
message_id,
|
|
});
|
|
this._dismiss();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* For a given element, calculate a unique string that identifies it.
|
|
* @param {Element} target Element to calculate the selector for
|
|
* @returns {String} Computed event target selector, e.g. `button#next`
|
|
*/
|
|
_getUniqueElementIdentifier(target) {
|
|
let source;
|
|
if (Element.isInstance(target)) {
|
|
source = target.localName;
|
|
if (target.className) {
|
|
source += `.${[...target.classList].join(".")}`;
|
|
}
|
|
if (target.id) {
|
|
source += `#${target.id}`;
|
|
}
|
|
if (target.attributes.length) {
|
|
source += `${[...target.attributes]
|
|
.filter(attr => ["is", "role", "open"].includes(attr.name))
|
|
.map(attr => `[${attr.name}="${attr.value}"]`)
|
|
.join("")}`;
|
|
}
|
|
if (this.doc.querySelectorAll(source).length > 1) {
|
|
let uniqueAncestor = target.closest(`[id]:not(:scope, :root, body)`);
|
|
if (uniqueAncestor) {
|
|
source = `${this._getUniqueElementIdentifier(
|
|
uniqueAncestor
|
|
)} > ${source}`;
|
|
}
|
|
}
|
|
}
|
|
return source;
|
|
}
|
|
|
|
async showFeatureCallout() {
|
|
let updated = await this._loadConfig();
|
|
|
|
if (!updated || !this.config?.screens?.length) {
|
|
return;
|
|
}
|
|
|
|
this.renderObserver = new this.win.MutationObserver(() => {
|
|
// Check if the Feature Callout screen has loaded for the first time
|
|
if (!this.ready && this.doc.querySelector(`#${CONTAINER_ID} .screen`)) {
|
|
// Once the screen element is added to the DOM, wait for the
|
|
// animation frame after next to ensure that _positionCallout
|
|
// has access to the rendered screen with the correct height
|
|
this.win.requestAnimationFrame(() => {
|
|
this.win.requestAnimationFrame(() => {
|
|
this.ready = true;
|
|
this._attachPageEventListeners(
|
|
this.currentScreen?.content?.page_event_listeners
|
|
);
|
|
this.win.addEventListener("keypress", this, { capture: true });
|
|
this._positionCallout();
|
|
let container = this.doc.getElementById(CONTAINER_ID);
|
|
container.focus();
|
|
this.win.addEventListener("focus", this, {
|
|
capture: true, // get the event before retargeting
|
|
passive: true,
|
|
});
|
|
});
|
|
});
|
|
}
|
|
});
|
|
|
|
this._pageEventManager?.clear();
|
|
this.ready = false;
|
|
const container = this.doc.getElementById(CONTAINER_ID);
|
|
container?.remove();
|
|
|
|
// If user has disabled CFR, don't show any callouts. But make sure we load
|
|
// the necessary stylesheets first, since re-enabling CFR should allow
|
|
// callouts to be shown without needing to reload. In the future this could
|
|
// allow adding a CTA to disable recommendations with a label like "Don't show
|
|
// these again" (or potentially a toggle to re-enable them).
|
|
if (!this.cfrFeaturesUserPref) {
|
|
this.currentScreen = null;
|
|
return;
|
|
}
|
|
|
|
this._addCalloutLinkElements();
|
|
this._setupWindowFunctions();
|
|
await this._renderCallout();
|
|
}
|
|
}
|