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Website : rimsha.abasa.com
: / var / canvas / node_modules / chrome-remote-interface / lib /
Filename : api.js
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'use strict';

function arrayToObject(parameters) {
    const keyValue = {};
    parameters.forEach(function (parameter) {
        const name = parameter.name;
        delete parameter.name;
        keyValue[name] = parameter;
    });
    return keyValue;
}

function decorate(to, category, object) {
    to.category = category;
    Object.keys(object).forEach(function (field) {
        // skip the 'name' field as it is part of the function prototype
        if (field === 'name') {
            return;
        }
        // commands and events have parameters whereas types have properties
        if (category === 'type' && field === 'properties' ||
            field === 'parameters') {
            to[field] = arrayToObject(object[field]);
        } else {
            to[field] = object[field];
        }
    });
}

function addCommand(chrome, domainName, command) {
    const handler = function (params, callback) {
        return chrome.send(domainName + '.' + command.name, params, callback);
    };
    decorate(handler, 'command', command);
    chrome[domainName][command.name] = handler;
}

function addEvent(chrome, domainName, event) {
    const eventName = domainName + '.' + event.name;
    const handler = function (handler) {
        if (typeof handler === 'function') {
            chrome.on(eventName, handler);
        } else {
            return new Promise(function (fulfill, reject) {
                chrome.once(eventName, fulfill);
            });
        }
    };
    decorate(handler, 'event', event);
    chrome[domainName][event.name] = handler;
}

function addType(chrome, domainName, type) {
    const help = {};
    decorate(help, 'type', type);
    chrome[domainName][type.id] = help;
}

function prepare(protocol) {
    const chrome = this;
    return new Promise(function (fulfill, reject) {
        // assign the protocol and generate the shorthands
        chrome.protocol = protocol;
        protocol.domains.forEach(function (domain) {
            const domainName = domain.domain;
            chrome[domainName] = {};
            // add commands
            (domain.commands || []).forEach(function (command) {
                addCommand(chrome, domainName, command);
            });
            // add events
            (domain.events || []).forEach(function (event) {
                addEvent(chrome, domainName, event);
            });
            // add types
            (domain.types || []).forEach(function (type) {
                addType(chrome, domainName, type);
            });
        });
        fulfill();
    });
}

module.exports.prepare = prepare;