d2-ui-components

Components

Dialog Button

A button that opens a modal info dialog when clicked.

import { Icon, IconButton } from "@material-ui/core";
import { DialogButton } from "d2-ui-components";

const MyDialogHandler = () => (
    <DialogButton
        title="Help"
        contents="This is some help message"
        buttonComponent={
            ({ onClick }) => (
                <IconButton tooltip="Help" onClick={onClick}>
                    <Icon color="primary">help</Icon>
                </IconButton>
            )
        }
    />
);

Confirmation Dialog

A wrapper that creates all the logic needed to build a modal dialog.

import { ConfirmationDialog } from "d2-ui-components";

const MyDialog = () => (
    <ConfirmationDialog
        isOpen={this.dialogOpen}
        onSave={this.handleDialogConfirm}
        onCancel={this.handleDialogCancel}
        title={"Delete Instance?"}
        description={"Are you sure you want to delete this instance?"}
        saveText={"Ok"}
    />
);

Date Picker

import { DatePicker } from "d2-ui-components";

const MyDatePicker = () => (
    <DatePicker
        label="Label of the TextInput component"
        value={new Date("2019/01/30")}
        onChange={newValue => console.log(newValue)}
    />
);

Multiple Selector

import { MultipleSelector } from "d2-ui-components";

const MyMultipleSelector = () => (
    <MultiSelector
        d2={d2}
        height={300}
        onChange={values => console.log("New selected values", values)}
        options={[{text: "Option 1", value: "id1"}, {text: "Option 2", value: "id2"}]}
        selected={["id1"]}
        ordered={true}
    />
);

Simple checkbox

Visually similar to material-ui checkbox but much lighter, useful when you have lots of checks in a page.

import { SimpleCheckBox } from "d2-ui-components";

const MySimpleCheckBox = () => (
    <SimpleCheckBox
        checked={true}
        onClick={values => console.log("Checkbox was clicked")}
    />
);

Organisation Units selector

import { OrgUnitsSelector }  from "d2-ui-components";

const MyOrgUnitsSelector = () => (
    <OrgUnitsSelector
        d2={d2}
        onChange={orgUnitsPaths => console.log("Selected orgUnitPaths", orgUnitsPaths)}
        selected={["/ImspTQPwCqd/O6uvpzGd5pu", "/ImspTQPwCqd/PMa2VCrupOd"]}
        levels={[1, 2]}
        rootIds={["ImspTQPwCqd"]}
        listParams={{ maxLevel: 4 }}
    />
);

Snackbar feedback

There should be a unique snackbar for the whole app, so we need to insert a single provider in the main component:

import { SnackbarProvider }  from "d2-ui-components";

const MyAppWithSnackbar = (
    <SnackbarProvider>
        <MyApp />
    </SnackbarProvider>
);

To use it, create a HOC with withSnackbar, add snackbar to your propTypes, and show messages using the functions props.snackbar[.level]. Levels supported: success, error, info, warning.

import { withSnackbar } from "d2-ui-components";
import PropTypes from "prop-types";

const MyComponent = ({name, snackbar}) => (
    <div>
        <a onClick={() => snackbar.success(name)}>Success</a>
        <a onClick={() => snackbar.error(name)}>Error</a>
        <a onClick={() => snackbar.info(name)}>Info</a>
        <a onClick={() => snackbar.warning(name)}>Warning</a>
    </div>
);

MyComponent.propTypes = {
    name: PropTypes.object.isRequired,
    snackbar: PropTypes.object.isRequired,
}

export default withSnackbar(MyComponent);

Loading Mask

There should be a unique loading mask for the whole app, so we need to insert a single provider in the main component:

import { LoadingProvider }  from "d2-ui-components";

const MyAppWithLoadingMask = (
    <LoadingProvider>
        <MyApp />
    </LoadingProvider>
);

To use it, create a HOC with withLoading, add loading to your propTypes, and show the mask using the functions props.loading.show().

import { withLoading } from "d2-ui-components";
import PropTypes from "prop-types";

const MyComponent = ({name, loading}) => (
    <div>
        <a onClick={() => loading.show()}>Show loading mask</a>
        <a onClick={() => loading.show(false)}>Hide loading mask</a>
        <a onClick={() => loading.hide()}>Also hides loading mask</a>
        <a onClick={() => loading.show(true, 'Message', 35)}>Show loading mask with extra information</a>
        <a onClick={() => loading.updateMessage('String')}>Update message</a>
        <a onClick={() => loading.updateProgress(98)}>Update progress</a>
        <a onClick={() => loading.reset()}>Hide and clear message/progress</a>
    </div>
);

MyComponent.propTypes = {
    name: PropTypes.object.isRequired,
    loading: PropTypes.object.isRequired,
}

export default withLoading(MyComponent);

Objects table

Display D2 objects in a table with:

• Sortable columns.
• Filters: By default, it shows a search bar to filter by name, custom filters can be added.
• Details sidebar.
• Configurable context actions.
• Pagination.
• Create button action.

Whenever you want to update the objects table, pass a different key prop (i.e new Date()), as you would do with any other React component.

const columns = [
    { name: "displayName", text: i18n.t("Name"), sortable: true },
    { name: "publicAccess", text: i18n.t("Public access"), sortable: true },
    { name: "lastUpdated", text: i18n.t("Last updated"), sortable: true },
];

const detailsFields = [
    { name: "displayName", text: i18n.t("Name") },
    { name: "code", text: i18n.t("Code") },
    { name: "href", text: i18n.t("API link") },
];

const actions = [
    {
        name: "details",
        text: i18n.t("Details"),
        multiple: false,
        type: "details",
    },
    {
        name: "delete",
        text: i18n.t("Delete"),
        multiple: true,
    },
];

const CustomFilters = (
    <Checkbox ... />
);

const MyObjectsTable = () => (
    <ObjectsTable
        d2={d2}
        model={d2.models.dataSet}
        columns={columns}
        detailsFields={detailsFields}
        pageSize={20}
        initialSorting={["displayName", "asc"]}
        actions={actions}
        onButtonClick={() => console.log("Floating button clicked")}
        buttonLabel={someString || <SomeComponent >}
        list={list} // list(d2, filters, pagination) -> {pager, objects}
        customFiltersComponent={CustomFilters}
        customFilters={{key1: "value1", key2: "value2}}
        onSelectionChange={objectIds => console.log(objectIds)}
        hideSearchBox={false}
    />
);

Wizard

Display a Step by Step customizable wizard

const getStepsBaseInfo = [
    {
        key: "general-info",
        label: "General info",
        component: GeneralInfoStep,
        validationKeys: ["name"],
        description: "Description for a wizard step",
        help: "Help text",
    },
    {
        key: "summary",
        label: "Summary",
        component: SaveStep,
        validationKeys: [],
        description: undefined,
        help: undefined,
    },
];

onStepChangeRequest = async currentStep => {
    return getValidationMessages(
        currentStep.validationKeys
    );
};

const MyWizard = props => {
    const steps = getStepsBaseInfo.map(step => ({
        ...step,
        props: {
            onCancel: () => console.log("User wants to cancel the wizard!"),
        },
    }));

    const urlHash = props.location.hash.slice(1);
    const stepExists = steps.find(step => step.key === urlHash);
    const firstStepKey = steps.map(step => step.key)[0];
    const initialStepKey = stepExists ? urlHash : firstStepKey;
    const lastClickableStepIndex = props.isEdit ? steps.length - 1 : 0;

    return (
        <Wizard
            useSnackFeedback={true}
            onStepChangeRequest={onStepChangeRequest}
            initialStepKey={initialStepKey}
            lastClickableStepIndex={lastClickableStepIndex}
            steps={steps}
        />
    );
};

Setup

$ yarn install

Run tests, linter and prettier:

$ yarn code-quality

To publish a new package to npmjs:

$ yarn build && yarn publish build/

i18n

• Import i18n from utils module (import i18n from "../utils/i18n";) then use it: i18n.t("Some literal"). This uses @dhis2/i18n infrastructure with namespace d2-ui-components.

• Do not call i18n.t("Some literal") on module or class level, only within functions. At that point, the locale is not yet selected, and you'll get always the default English translations.

Update an existing language

$ yarn update-po
# ... add/edit translations in po files ...
$ yarn localize

Create a new language

$ cp i18n/en.pot i18n/es.po
# ... add translations to i18n/es.po ...
$ yarn localize

Local development with applications

In d2-ui-components:

yarn build-babel --watch

node_modules/.bin/watch 'cp -av build/* ../path-to-application/node_modules/d2-ui-components/' build/

In the application:

./node_modules/react-scripts/config/webpackDevServer.config.js

// @remove-on-eject-begin
/**
 * Copyright (c) 2015-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
// @remove-on-eject-end
'use strict';

const errorOverlayMiddleware = require('react-dev-utils/errorOverlayMiddleware');
const evalSourceMapMiddleware = require('react-dev-utils/evalSourceMapMiddleware');
const noopServiceWorkerMiddleware = require('react-dev-utils/noopServiceWorkerMiddleware');
//const ignoredFiles = require('react-dev-utils/ignoredFiles');
const path = require('path');
const paths = require('./paths');
const fs = require('fs');

const protocol = process.env.HTTPS === 'true' ? 'https' : 'http';
const host = process.env.HOST || '0.0.0.0';

const ignoredFiles = function (appSrc) {
      const regexp = new RegExp(
        `^(?!${escape(
          path.normalize(appSrc + '/').replace(/[\\]+/g, '/')
        )}).+/node_modules/(?!d2-ui-components)`,
        'g'
      );
      console.log({regexp})
      return regexp;
    };


module.exports = function(proxy, allowedHost) {
  return {
    // WebpackDevServer 2.4.3 introduced a security fix that prevents remote
    // websites from potentially accessing local content through DNS rebinding:
    // https://github.com/webpack/webpack-dev-server/issues/887
    // https://medium.com/webpack/webpack-dev-server-middleware-security-issues-1489d950874a
    // However, it made several existing use cases such as development in cloud
    // environment or subdomains in development significantly more complicated:
    // https://github.com/facebook/create-react-app/issues/2271
    // https://github.com/facebook/create-react-app/issues/2233
    // While we're investigating better solutions, for now we will take a
    // compromise. Since our WDS configuration only serves files in the `public`
    // folder we won't consider accessing them a vulnerability. However, if you
    // use the `proxy` feature, it gets more dangerous because it can expose
    // remote code execution vulnerabilities in backends like Django and Rails.
    // So we will disable the host check normally, but enable it if you have
    // specified the `proxy` setting. Finally, we let you override it if you
    // really know what you're doing with a special environment variable.
    disableHostCheck:
      !proxy || process.env.DANGEROUSLY_DISABLE_HOST_CHECK === 'true',
    // Enable gzip compression of generated files.
    compress: true,
    // Silence WebpackDevServer's own logs since they're generally not useful.
    // It will still show compile warnings and errors with this setting.
    clientLogLevel: 'none',
    // By default WebpackDevServer serves physical files from current directory
    // in addition to all the virtual build products that it serves from memory.
    // This is confusing because those files won’t automatically be available in
    // production build folder unless we copy them. However, copying the whole
    // project directory is dangerous because we may expose sensitive files.
    // Instead, we establish a convention that only files in `public` directory
    // get served. Our build script will copy `public` into the `build` folder.
    // In `index.html`, you can get URL of `public` folder with %PUBLIC_URL%:
    // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
    // In JavaScript code, you can access it with `process.env.PUBLIC_URL`.
    // Note that we only recommend to use `public` folder as an escape hatch
    // for files like `favicon.ico`, `manifest.json`, and libraries that are
    // for some reason broken when imported through Webpack. If you just want to
    // use an image, put it in `src` and `import` it from JavaScript instead.
    contentBase: paths.appPublic,
    // By default files from `contentBase` will not trigger a page reload.
    watchContentBase: true,
    // Enable hot reloading server. It will provide /sockjs-node/ endpoint
    // for the WebpackDevServer client so it can learn when the files were
    // updated. The WebpackDevServer client is included as an entry point
    // in the Webpack development configuration. Note that only changes
    // to CSS are currently hot reloaded. JS changes will refresh the browser.
    hot: true,
    // It is important to tell WebpackDevServer to use the same "root" path
    // as we specified in the config. In development, we always serve from /.
    publicPath: '/',
    // WebpackDevServer is noisy by default so we emit custom message instead
    // by listening to the compiler events with `compiler.hooks[...].tap` calls above.
    quiet: true,
    // Reportedly, this avoids CPU overload on some systems.
    // https://github.com/facebook/create-react-app/issues/293
    // src/node_modules is not ignored to support absolute imports
    // https://github.com/facebook/create-react-app/issues/1065
    watchOptions: {
      ignored: ignoredFiles(paths.appSrc),
    },
    // Enable HTTPS if the HTTPS environment variable is set to 'true'
    https: protocol === 'https',
    host,
    overlay: false,
    historyApiFallback: {
      // Paths with dots should still use the history fallback.
      // See https://github.com/facebook/create-react-app/issues/387.
      disableDotRule: true,
    },
    public: allowedHost,
    proxy,
    before(app, server) {
      if (fs.existsSync(paths.proxySetup)) {
        // This registers user provided middleware for proxy reasons
        require(paths.proxySetup)(app);
      }

      // This lets us fetch source contents from webpack for the error overlay
      app.use(evalSourceMapMiddleware(server));
      // This lets us open files from the runtime error overlay.
      app.use(errorOverlayMiddleware());

      // This service worker file is effectively a 'no-op' that will reset any
      // previous service worker registered for the same host:port combination.
      // We do this in development to avoid hitting the production cache if
      // it used the same host and port.
      // https://github.com/facebook/create-react-app/issues/2272#issuecomment-302832432
      app.use(noopServiceWorkerMiddleware());
    },
  };
};