clickable-json/lib/utils/selectOnFocus.js

Interactive JSON and JSON CRDT viewer and editor

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.selectOnFocus = void 0;
const selectOnFocus = (input) => {
    const value = input.value;
    const length = value.length;
    // Nicely select short strings. Always select very short strings, for
    // a bit longer strings check if there are any spaces or newlines. The
    // characters should allow to select UUIDs.
    if (length && length < 40) {
        setTimeout(() => {
            if (value[0] === '"' && value[length - 1] === '"') {
                if (length < 17 || (value.indexOf('\n') === -1 && value.indexOf(' ') === -1)) {
                    input.setSelectionRange(1, length - 1, 'forward');
                }
            }
            else if (value === 'null')
                input.setSelectionRange(0, 4, 'forward');
            else {
                try {
                    switch (typeof JSON.parse(value)) {
                        case 'number':
                        case 'boolean': {
                            input.setSelectionRange(0, length, 'forward');
                            break;
                        }
                    }
                }
                catch (_a) { }
            }
        }, 155);
    }
    if (value[0] === '"' && value[length - 1] === '"') {
        input.setSelectionRange(length - 1, length - 1);
    }
};
exports.selectOnFocus = selectOnFocus;
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