scratchfoundation/paper.js
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Support running of PaperScript .pjs files.

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This commit is contained in:
Jonathan Puckey 2011-08-13 18:26:43 +02:00
parent 0f7406f7f4
commit 25cb4a7dd1
1 changed files with 26 additions and 6 deletions
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32
src/loadNode.js
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@ -1,18 +1,28 @@
var context = require('vm').createContext({
var fs = require('fs'),
vm = require('vm'),
path = require('path');
// Create the context within which we will run the source files:
var context = vm.createContext({
options: {
server: true,
version: 'dev'
},
// Node Canvas library: https://github.com/learnboost/node-canvas
Canvas: require('canvas'),
// Copy over global variables:
console: console,
require: require,
__dirname: __dirname,
__filename: __filename,
// Used to load and run source files within the same context:
include: function(uri) {
var source = require('fs').readFileSync(__dirname + '/' + uri);
// For relative includes, we save the current directory and then add
// the uri directory to __dirname:
var source = fs.readFileSync(path.resolve(__dirname, uri), 'utf8');
// For relative includes, we save the current directory and then
// add the uri directory to __dirname:
var oldDirname = __dirname;
__dirname = __dirname + '/' + uri.replace(/[^/]+$/, '');
require('vm').runInContext(source, context, uri);
__dirname = path.resolve(__dirname, path.dirname(uri));
vm.runInContext(source, context, uri);
__dirname = oldDirname;
}
});
@ -28,4 +38,14 @@ context.Base.each(context, function(val, key) {
});
context.PaperScope.prototype['Canvas'] = context.Canvas;
require.extensions['.pjs'] = function(module, uri) {
var source = context.PaperScript.compile(fs.readFileSync(uri, 'utf8'));
var envVars = 'var __dirname = \'' + path.dirname(uri) + '\';' +
'var __filename = \'' + uri + '\';';
vm.runInContext(envVars, context);
var scope = new context.PaperScope();
context.PaperScript.evaluate(source, scope);
module.exports = scope;
};
module.exports = new context.PaperScope();