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| 'use strict';
|
| /*!
| * Canvas - PDFStream
| */
|
| var Readable = require('stream').Readable;
| var util = require('util');
|
| var PDFStream = module.exports = function PDFStream(canvas, options) {
| if (!(this instanceof PDFStream)) {
| throw new TypeError("Class constructors cannot be invoked without 'new'");
| }
|
| Readable.call(this);
|
| this.canvas = canvas;
| this.options = options;
| };
|
| util.inherits(PDFStream, Readable);
|
| function noop() {}
|
| PDFStream.prototype._read = function _read() {
| // For now we're not controlling the c++ code's data emission, so we only
| // call canvas.streamPDFSync once and let it emit data at will.
| this._read = noop;
| var self = this;
| self.canvas.streamPDFSync(function(err, chunk, len){
| if (err) {
| self.emit('error', err);
| } else if (len) {
| self.push(chunk);
| } else {
| self.push(null);
| }
| }, this.options);
| };
|
|
