forked from cerc-io/plugeth
58 lines
1.9 KiB
JavaScript
58 lines
1.9 KiB
JavaScript
/*
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This file is part of ethereum.js.
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ethereum.js is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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ethereum.js is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file qt.js
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* @authors:
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* Jeffrey Wilcke <jeff@ethdev.com>
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* Marek Kotewicz <marek@ethdev.com>
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* @date 2014
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*/
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/**
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* QtProvider object prototype is implementing 'provider protocol'
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* Should be used inside ethereum browser. It's compatible with cpp and go clients.
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* It uses navigator.qt object to pass the messages to native bindings
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*/
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var QtProvider = function() {
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this.handlers = [];
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var self = this;
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navigator.qt.onmessage = function (message) {
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self.handlers.forEach(function (handler) {
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handler.call(self, JSON.parse(message.data));
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});
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};
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};
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/// Prototype object method
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/// Should be called when we want to send single api request to native bindings
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/// Asynchronous
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/// Response will be received by navigator.qt.onmessage method and passed to handlers
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/// @param payload is inner message object
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QtProvider.prototype.send = function(payload) {
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navigator.qt.postMessage(JSON.stringify(payload));
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};
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/// Prototype object property
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/// Should be used to set message handlers for this provider
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Object.defineProperty(QtProvider.prototype, "onmessage", {
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set: function(handler) {
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this.handlers.push(handler);
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}
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});
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module.exports = QtProvider;
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