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Update index.js to support worker environment

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This commit is contained in:
Tim Mickel 2016-06-21 14:48:54 -04:00
parent 01aecb3372
commit 783a3688aa
1 changed files with 55 additions and 0 deletions
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55
src/index.js
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@ -4,6 +4,12 @@ var util = require('util');
var Blocks = require('./engine/blocks');
var Runtime = require('./engine/runtime');
/**
* Whether the environment is a WebWorker.
* @const{boolean}
*/
var ENV_WORKER = typeof importScripts === 'function';
/**
* Handles connections between blocks, stage, and extensions.
*
@ -30,6 +36,55 @@ function VirtualMachine () {
);
}
/*
* Worker Handlers
*/
if (ENV_WORKER) {
self.vmInstance = new VirtualMachine();
self.onmessage = function (e) {
var messageData = e.data;
switch (messageData.method) {
case 'start':
self.vmInstance.runtime.start();
break;
case 'greenFlag':
self.vmInstance.runtime.greenFlag();
break;
case 'stopAll':
self.vmInstance.runtime.stopAll();
break;
case 'blockListener':
self.vmInstance.blockListener(messageData.args);
break;
case 'flyoutBlockListener':
self.vmInstance.flyoutBlockListener(messageData.args);
break;
case 'getPlaygroundData':
self.postMessage({
method: 'playgroundData',
blocks: self.vmInstance.blocks,
threads: self.vmInstance.runtime.threads
});
break;
default:
throw 'Unknown method' + messageData.method;
}
};
// Bind runtime's emitted events to postmessages.
self.vmInstance.runtime.on(Runtime.STACK_GLOW_ON, function (id) {
self.postMessage({method: Runtime.STACK_GLOW_ON, id: id});
});
self.vmInstance.runtime.on(Runtime.STACK_GLOW_OFF, function (id) {
self.postMessage({method: Runtime.STACK_GLOW_OFF, id: id});
});
self.vmInstance.runtime.on(Runtime.BLOCK_GLOW_ON, function (id) {
self.postMessage({method: Runtime.BLOCK_GLOW_ON, id: id});
});
self.vmInstance.runtime.on(Runtime.BLOCK_GLOW_OFF, function (id) {
self.postMessage({method: Runtime.BLOCK_GLOW_OFF, id: id});
});
}
/**
* Inherit from EventEmitter
*/