@c8y/ngx-components/esm2022/core/dynamic-forms/i18n/translate.extension.mjs

Angular modules for Cumulocity IoT applications

import { combineLatest, isObservable, of } from 'rxjs';
import { map } from 'rxjs/operators';
import { gettext } from '../../i18n';
export class TranslateExtension {
    constructor(translate, parser) {
        this.translate = translate;
        this.parser = parser;
    }
    prePopulate(field) {
        const to = field.props || {};
        if (!to.label || to._translated) {
            return;
        }
        to._translated = true;
        field.expressions = {
            ...(field.expressions || {}),
            'props.label': to.label ? this.translate.stream(to.label) : to.label,
            'props.description': to.description ? this.translate.stream(to.description) : to.description,
            'props.placeholder': to.placeholder
                ? combineLatest([
                    this.translate.stream(to.placeholder),
                    this.translate.stream(gettext('e.g. {{ example }}')),
                    of(Boolean(to.removeExempliGratia))
                ]).pipe(map(([placeholder, expression, exempliGratia]) => !exempliGratia
                    ? this.parser.interpolate(expression, { example: placeholder })
                    : placeholder))
                : to.placeholder,
            'props.options': (isObservable(to.options) ? to.options : of(to.options)).pipe(map((options) => (options || []).map(option => ({
                ...option,
                label: this.translate.instant(option.label)
            }))))
        };
    }
}
export function registerTranslateExtension(translate, parser) {
    return {
        extensions: [
            {
                name: 'translate',
                extension: new TranslateExtension(translate, parser)
            }
        ]
    };
}
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