gristlabs_grist-core/app/client/ui/OnBoardingPopups.ts

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/**
* Utility to generate a series of onboarding popups. It is used to give users a short description
* of some elements of the UI. The first step is to create the list of messages following the
* `IOnBoardingMsg` interface. Then you have to attach each message to its corresponding element of
* the UI using the `attachOnBoardingMsg' dom method:
*
* Usage:
*
* // create the list of message
* const messages = [{id: 'add-new-btn', buildDom: () => dom('div', 'Adds New button let's you ...')},
* {id: 'share-btn', buildDom: () => ... ];
*
*
* // attach each message to the corresponding element
* dom('div', 'Add New', ..., attachOnBoardingMsg('add-new-btn', {placement: 'right'}));
*
* // start
* startOnBoarding(message, onFinishCB);
*
* Note:
* - this module does UI only, saving which user has already seen the popups has to be handled by
* the caller. Pass an `onFinishCB` to handle when a user dimiss the popups.
*/
import { Disposable, dom, DomElementMethod, makeTestId, styled, svg } from "grainjs";
import { createPopper, Placement, Options as PopperOptions } from '@popperjs/core';
import { pull, range } from "lodash";
import { bigBasicButton, bigPrimaryButton } from "../ui2018/buttons";
import { colors } from "../ui2018/cssVars";
const testId = makeTestId('test-onboarding-');
// Describes an onboarding popup. Each popup is uniquely identified by its id.
export interface IOnBoardingMsg {
// Identifies one message
id: string,
// Build the popup's content
buildDom: () => HTMLElement,
}
export function startOnBoarding(messages: IOnBoardingMsg[], onFinishCB: () => void) {
const ctl = new OnBoardingPopupsCtl(messages, onFinishCB);
ctl.start();
}
// Onboarding popup options.
export interface IOnBoardingPopupOptions {
placement?: Placement;
}
function attachOnBoardingElem(elem: HTMLElement, messageId: string, opts: IOnBoardingPopupOptions) {
const val = {elem, messageId, ...opts};
registry.push(val);
dom.onDisposeElem(elem, () => pull(registry, val));
}
// A dom method that let you attach an boarding message to an element. This causes the onboarding
// message to be shown in a tooltip like popup pointing at this element. More info in the module
// description.
export function attachOnBoardingMsg(messageId: string, opts: IOnBoardingPopupOptions): DomElementMethod {
return (elem) => attachOnBoardingElem(elem, messageId, opts);
}
// Onboarding popup's options.
interface IOnboardingRegistryItem {
// the message id
messageId: string;
// The popper placement, optional.
placement?: Placement,
// the element,
elem: HTMLElement,
}
// List of all registered element
const registry: Array<IOnboardingRegistryItem> = [];
class OnBoardingPopupsCtl extends Disposable {
private _index = -1;
private _openPopupCtl: {close: () => void}|undefined;
private _overlay: HTMLElement;
private _arrowEl = buildArrow();
constructor(private _messages: IOnBoardingMsg[], private _onFinishCB: () => void) {
super();
if (this._messages.length === 0) {
throw new Error('messages should not be an empty list');
}
this.onDispose(() => {
this._openPopupCtl?.close();
});
}
public start(): void {
this._showOverlay();
this._next();
}
private _finish() {
this._onFinishCB();
this.dispose();
}
private _next(): void {
this._index = this._index + 1;
const {id} = this._messages[this._index];
const entry = registry.find((opts) => opts.messageId === id);
if (!entry) { throw new Error(`Missing on-boarding entry for message: ${id}`); }
const {elem, placement} = entry;
// close opened popup if any
this._openPopupCtl?.close();
// Cleanup
function close() {
popper.destroy();
dom.domDispose(content);
content.remove();
}
// Add the content element
const content = this._buildPopupContent();
document.body.appendChild(content);
// Create a popper for positioning the popup content relative to the reference element
const popperOptions: Partial<PopperOptions> = { placement };
const popper = createPopper(elem, content, {
...popperOptions,
modifiers: [{
name: 'arrow',
options: {
element: this._arrowEl,
},
}, {
name: 'offset',
options: {
offset: [-12, 12],
}
}],
});
this._openPopupCtl = {close};
}
private _buildPopupContent() {
return Container(this._arrowEl, ContentWrapper(
this._messages[this._index].buildDom(),
this._buildFooter(),
testId('popup'),
));
}
private _buildFooter() {
const nSteps = this._messages.length;
const isLastStep = this._index === nSteps - 1;
return Footer(
ProgressBar(
range(nSteps).map((i) => Dot(Dot.cls('-done', i > this._index))),
),
Buttons(
bigBasicButton(
'Finish', testId('finish'),
dom.on('click', () => this._finish()),
{style: 'margin-right: 8px;'},
),
bigPrimaryButton(
'Next', testId('next'),
dom.on('click', () => this._next()),
dom.prop('disabled', isLastStep),
),
)
);
}
private _showOverlay() {
document.body.appendChild(this._overlay = Overlay());
this.onDispose(() => {
document.body.removeChild(this._overlay);
dom.domDispose(this._overlay);
});
}
}
function buildArrow() {
return ArrowContainer(
svg('svg', { style: 'width: 14px; height: 36px;' },
svg('path', {'d': 'M 2 16 h 12 v 16 Z'}))
);
}
const Container = styled('div', `
border: 2px solid ${colors.lightGreen};
border-radius: 3px;
z-index: 1000;
max-width: 490px;
position: relative;
background-color: white;
box-shadow: 0 2px 18px 0 rgba(31,37,50,0.31), 0 0 1px 0 rgba(76,86,103,0.24);
`);
function sideSelectorChunk(side: 'top'|'bottom'|'left'|'right') {
return `.${Container.className}[data-popper-placement^=${side}]`;
}
const ArrowContainer = styled('div', `
position: absolute;
& path {
stroke: ${colors.lightGreen};
stroke-width: 2px;
fill: white;
}
${sideSelectorChunk('top')} > & {
bottom: -26px;
}
${sideSelectorChunk('bottom')} > & {
top: -24px;
}
${sideSelectorChunk('right')} > & {
left: -12px;
}
${sideSelectorChunk('left')} > & {
right: -12px;
}
${sideSelectorChunk('top')} svg {
transform: rotate(-90deg);
}
${sideSelectorChunk('bottom')} svg {
transform: rotate(90deg);
}
${sideSelectorChunk('left')} svg {
transform: scalex(-1);
}
`);
const ContentWrapper = styled('div', `
position: relative;
padding: 32px;
background-color: white;
`);
const Footer = styled('div', `
display: flex;
flex-direction: row;
margin-top: 32px;
justify-content: space-between;
`);
const ProgressBar = styled('div', `
display: flex;
flex-direction: row;
`);
const Buttons = styled('div', `
display: flex;
flex-directions: row;
`);
const Dot = styled('div', `
width: 6px;
height: 6px;
border-radius: 3px;
margin-right: 12px;
align-self: center;
background-color: ${colors.lightGreen};
&-done {
background-color: ${colors.darkGrey};
}
`);
const Overlay = styled('div', `
position: fixed;
display: flex;
flex-direction: column;
width: 100%;
height: 100%;
top: 0;
left: 0;
z-index: 999;
overflow-y: auto;
`);