65 lines
1.7 KiB
JavaScript
65 lines
1.7 KiB
JavaScript
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- /
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/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
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"use strict";
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importScripts("console.js");
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importScripts("../pdf.js");
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importScripts("../fonts.js");
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importScripts("../glyphlist.js")
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function fontDataToString(font) {
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// Doing postMessage on objects make them lose their "shape". This adds the
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// "shape" for all required objects agains, such that the encoding works as
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// expected.
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var fontFileDict = new Dict();
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fontFileDict.map = font.file.dict.map;
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var fontFile = new Stream(font.file.bytes, font.file.start, font.file.end - font.file.start, fontFileDict);
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font.file = new FlateStream(fontFile);
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// This will encode the font.
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var fontObj = new Font(font.name, font.file, font.properties);
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// Create string that is used for css later.
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var str = "";
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var data = fontObj.data;
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var length = data.length;
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for (var j = 0; j < length; j++)
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str += String.fromCharCode(data[j]);
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return {
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str: str,
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encoding: font.properties.encoding
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}
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}
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/**
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* Functions to handle data sent by the MainThread.
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*/
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var actionHandler = {
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"fonts": function(data) {
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var fontData;
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var result = {};
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for (var i = 0; i < data.length; i++) {
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fontData = data[i];
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result[fontData.name] = fontDataToString(fontData);
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}
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postMessage({
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action: "fonts",
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data: result
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})
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},
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}
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// Listen to the MainThread for data and call actionHandler on it.
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this.onmessage = function(event) {
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var data = event.data;
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if (data.action in actionHandler) {
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actionHandler[data.action].call(this, data.data);
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} else {
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throw "Unkown action from worker: " + data.action;
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}
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} |