pdfjsbot
8 years ago
17 changed files with 475 additions and 127 deletions
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@ -0,0 +1,164 @@ |
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/* Copyright 2017 Mozilla Foundation |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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'use strict'; |
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|
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function xmlEncode(s) { |
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var i = 0, |
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ch; |
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s = String(s); |
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while (i < s.length && (ch = s[i]) !== '&' && ch !== '<' && ch !== '\"' && ch !== '\n' && ch !== '\r' && ch !== '\t') { |
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i++; |
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} |
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if (i >= s.length) { |
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return s; |
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} |
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var buf = s.substring(0, i); |
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while (i < s.length) { |
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ch = s[i++]; |
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switch (ch) { |
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case '&': |
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buf += '&'; |
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break; |
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case '<': |
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buf += '<'; |
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break; |
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case '\"': |
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buf += '"'; |
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break; |
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case '\n': |
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buf += '
'; |
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break; |
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case '\r': |
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buf += '
'; |
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break; |
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case '\t': |
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buf += '	'; |
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break; |
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default: |
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buf += ch; |
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break; |
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} |
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} |
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return buf; |
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} |
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function DOMElement(name) { |
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this.nodeName = name; |
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this.childNodes = []; |
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this.attributes = {}; |
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this.textContent = ''; |
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if (name === 'style') { |
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this.sheet = { |
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cssRules: [], |
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insertRule: function insertRule(rule) { |
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this.cssRules.push(rule); |
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} |
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}; |
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} |
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} |
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DOMElement.prototype = { |
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getAttributeNS: function DOMElement_getAttributeNS(NS, name) { |
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return name in this.attributes ? this.attributes[name] : null; |
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}, |
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setAttributeNS: function DOMElement_setAttributeNS(NS, name, value) { |
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value = value || ''; |
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value = xmlEncode(value); |
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this.attributes[name] = value; |
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}, |
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appendChild: function DOMElement_appendChild(element) { |
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var childNodes = this.childNodes; |
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if (childNodes.indexOf(element) === -1) { |
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childNodes.push(element); |
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} |
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}, |
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toString: function DOMElement_toString() { |
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var buf = []; |
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buf.push('<' + this.nodeName); |
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if (this.nodeName === 'svg:svg') { |
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buf.push(' xmlns:xlink="http://www.w3.org/1999/xlink"' + ' xmlns:svg="http://www.w3.org/2000/svg"'); |
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} |
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for (var i in this.attributes) { |
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buf.push(' ' + i + '="' + xmlEncode(this.attributes[i]) + '"'); |
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} |
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buf.push('>'); |
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if (this.nodeName === 'svg:tspan' || this.nodeName === 'svg:style') { |
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buf.push(xmlEncode(this.textContent)); |
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} else { |
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this.childNodes.forEach(function (childNode) { |
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buf.push(childNode.toString()); |
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}); |
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} |
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buf.push('</' + this.nodeName + '>'); |
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return buf.join(''); |
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}, |
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cloneNode: function DOMElement_cloneNode() { |
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var newNode = new DOMElement(this.nodeName); |
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newNode.childNodes = this.childNodes; |
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newNode.attributes = this.attributes; |
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newNode.textContent = this.textContent; |
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return newNode; |
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} |
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}; |
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var document = { |
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childNodes: [], |
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get currentScript() { |
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return { src: '' }; |
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}, |
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get documentElement() { |
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return this; |
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}, |
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createElementNS: function createElementNS(NS, element) { |
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var elObject = new DOMElement(element); |
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return elObject; |
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}, |
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createElement: function createElement(element) { |
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return this.createElementNS('', element); |
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}, |
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getElementsByTagName: function getElementsByTagName(element) { |
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if (element === 'head') { |
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return [this.head || (this.head = new DOMElement('head'))]; |
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} |
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return []; |
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} |
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}; |
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function Image() { |
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this._src = null; |
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this.onload = null; |
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} |
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Image.prototype = { |
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get src() { |
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return this._src; |
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}, |
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set src(value) { |
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this._src = value; |
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if (this.onload) { |
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this.onload(); |
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} |
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} |
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}; |
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exports.document = document; |
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exports.Image = Image; |
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var exported_symbols = Object.keys(exports); |
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exports.setStubs = function (namespace) { |
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exported_symbols.forEach(function (key) { |
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console.assert(!(key in namespace), 'property should not be set: ' + key); |
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namespace[key] = exports[key]; |
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}); |
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}; |
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exports.unsetStubs = function (namespace) { |
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exported_symbols.forEach(function (key) { |
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console.assert(key in namespace, 'property should be set: ' + key); |
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delete namespace[key]; |
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}); |
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}; |
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@ -0,0 +1,118 @@ |
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/* Copyright 2017 Mozilla Foundation |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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'use strict'; |
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var _util = require('../../shared/util'); |
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var _domstubs = require('../../examples/node/domstubs'); |
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var _test_utils = require('./test_utils'); |
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var _api = require('../../display/api'); |
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var _svg = require('../../display/svg'); |
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function withZlib(isZlibRequired, callback) { |
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if (isZlibRequired) { |
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if (!(0, _util.isNodeJS)()) { |
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throw new Error('zlib test can only be run in Node.js'); |
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} |
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return callback(); |
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} |
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if (!(0, _util.isNodeJS)()) { |
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return callback(); |
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} |
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var zlib = require('zlib'); |
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var deflateSync = zlib.deflateSync; |
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zlib.deflateSync = function () { |
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throw new Error('zlib.deflateSync is explicitly disabled for testing.'); |
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}; |
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try { |
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return callback(); |
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} finally { |
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zlib.deflateSync = deflateSync; |
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} |
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} |
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describe('SVGGraphics', function () { |
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var loadingTask; |
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var page; |
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beforeAll(function (done) { |
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loadingTask = (0, _api.getDocument)((0, _test_utils.buildGetDocumentParams)('xobject-image.pdf', { nativeImageDecoderSupport: _util.NativeImageDecoding.DISPLAY })); |
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loadingTask.promise.then(function (doc) { |
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doc.getPage(1).then(function (firstPage) { |
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page = firstPage; |
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done(); |
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}); |
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}); |
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}); |
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afterAll(function (done) { |
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loadingTask.destroy().then(done); |
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}); |
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describe('paintImageXObject', function () { |
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function getSVGImage() { |
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var svgGfx; |
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return page.getOperatorList().then(function (opList) { |
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var forceDataSchema = true; |
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svgGfx = new _svg.SVGGraphics(page.commonObjs, page.objs, forceDataSchema); |
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return svgGfx.loadDependencies(opList); |
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}).then(function () { |
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var svgImg; |
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var elementContainer = { |
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appendChild: function appendChild(element) { |
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svgImg = element; |
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} |
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}; |
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var xobjectObjId = { |
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ref: 4, |
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gen: 0 |
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}; |
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if ((0, _util.isNodeJS)()) { |
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(0, _domstubs.setStubs)(global); |
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} |
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try { |
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svgGfx.paintImageXObject(xobjectObjId, elementContainer); |
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} finally { |
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if ((0, _util.isNodeJS)()) { |
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(0, _domstubs.unsetStubs)(global); |
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} |
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} |
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return svgImg; |
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}); |
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} |
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it('should produce a reasonably small svg:image', function () { |
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if (!(0, _util.isNodeJS)()) { |
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pending('zlib.deflateSync is not supported in non-Node environments.'); |
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} |
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withZlib(true, getSVGImage).then(function (svgImg) { |
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expect(svgImg.nodeName).toBe('svg:image'); |
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expect(svgImg.getAttribute('width')).toBe('200px'); |
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expect(svgImg.getAttribute('height')).toBe('100px'); |
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var imgUrl = svgImg.getAttribute('xlink:href'); |
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expect(imgUrl).toMatch(/^data:image\/png;base64,/); |
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expect(imgUrl.length).toBeLessThan(367); |
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}); |
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}); |
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it('should produce a svg:image even if zlib is unavailable', function () { |
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withZlib(false, getSVGImage).then(function (svgImg) { |
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expect(svgImg.nodeName).toBe('svg:image'); |
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expect(svgImg.getAttribute('width')).toBe('200px'); |
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expect(svgImg.getAttribute('height')).toBe('100px'); |
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var imgUrl = svgImg.getAttribute('xlink:href'); |
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expect(imgUrl).toMatch(/^data:image\/png;base64,/); |
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expect(imgUrl.length).toBe(80247); |
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}); |
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}); |
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}); |
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}); |
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