Joachim Bauch
10 years ago
5 changed files with 381 additions and 150 deletions
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@@ -0,0 +1,251 @@
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/* |
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* Spreed WebRTC. |
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* Copyright (C) 2013-2015 struktur AG |
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* |
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* This file is part of Spreed WebRTC. |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* |
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*/ |
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"use strict"; |
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(function () { |
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var DOCUMENT_TYPE_PRESENTATION = "presentation"; |
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var DOCUMENT_TYPE_SPREADSHEET = "spreadsheet"; |
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var DOCUMENT_TYPE_TEXT = "text"; |
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var nsResolver = function(prefix) { |
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var ns = { |
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'draw': "urn:oasis:names:tc:opendocument:xmlns:drawing:1.0", |
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'presentation': "urn:oasis:names:tc:opendocument:xmlns:presentation:1.0", |
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'text': "urn:oasis:names:tc:opendocument:xmlns:text:1.0", |
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'office': "urn:oasis:names:tc:opendocument:xmlns:office:1.0" |
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}; |
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return ns[prefix] || console.log('prefix [' + prefix + '] unknown.'); |
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} |
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var body = document.getElementsByTagName("body")[0]; |
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var script = document.getElementsByTagName("script")[0]; |
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var PARENT_ORIGIN = script.getAttribute("data-parent-origin"); |
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var WEBODF_URL = script.getAttribute("data-webodf-url"); |
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var container = document.getElementById("container"); |
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var webodfScript = null; |
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var webodf = null; |
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var runtime = null; |
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var ODFCanvas_readFile = function(path, encoding, callback) { |
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if (typeof path === "string") { |
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runtime.orig_readFile.call(runtime, path, encoding, callback); |
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return; |
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} |
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// we're loading typed arrays in the sandbox
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callback(null, new Uint8Array(path)); |
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}; |
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var ODFCanvas_loadXML = function(path, callback) { |
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if (typeof path === "string") { |
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runtime.orig_loadXML.call(runtime, path, callback); |
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return; |
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} |
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// we're loading typed arrays in the sandbox
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console.log("LoadXML", path); |
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var bb = new Blob([new Uint8Array(path)]); |
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var f = new FileReader(); |
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f.onload = function(e) { |
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var parser = new DOMParser(); |
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var doc = parser.parseFromString(e.target.result, "text/xml"); |
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callback(null, doc); |
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}; |
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f.readAsText(bb); |
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}; |
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var WebODFSandbox = function(window) { |
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this.head = document.getElementsByTagName('head')[0]; |
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this.canvasDom = document.getElementById("odfcanvas"); |
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this.window = window; |
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this.canvas = null; |
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this.document_type = null; |
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}; |
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WebODFSandbox.prototype.postMessage = function(type, message) { |
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var msg = {"type": type}; |
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msg[type] = message; |
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this.window.parent.postMessage(msg, PARENT_ORIGIN); |
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}; |
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WebODFSandbox.prototype.openFile = function(source) { |
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if (!webodfScript) { |
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var that = this; |
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webodfScript = document.createElement('script'); |
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webodfScript.type = "text/javascript"; |
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webodfScript.src = WEBODF_URL; |
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webodfScript.onerror = function(evt) { |
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that.postMessage("webodf.error", {"msgid": "loadScriptFailed"}); |
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that.head.removeChild(webodfScript); |
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webodfScript = null; |
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}; |
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webodfScript.onload = function(evt) { |
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console.log("Using webodf.js " + that.window.webodf.Version); |
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webodf = that.window.odf; |
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// monkey-patch IO functions
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runtime = that.window.runtime; |
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runtime.orig_readFile = runtime.readFile; |
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runtime.readFile = ODFCanvas_readFile; |
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runtime.orig_loadXML = runtime.loadXML; |
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runtime.loadXML = ODFCanvas_loadXML; |
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that._doOpenFile(source); |
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}; |
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this.head.appendChild(webodfScript); |
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} else { |
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this._doOpenFile(source); |
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} |
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}; |
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WebODFSandbox.prototype.closeFile = function() { |
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if (this.canvas) { |
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this.canvas.destroy(function() { |
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// ignore callback
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}); |
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this.canvas = null; |
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} |
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}; |
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WebODFSandbox.prototype._doOpenFile = function(source) { |
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this.postMessage("webodf.loading", {"source": source}); |
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if (!this.canvas) { |
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var that = this; |
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this.canvas = new webodf.OdfCanvas(this.canvasDom); |
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this.canvas.addListener("statereadychange", function() { |
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that._odfLoaded(); |
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}); |
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} |
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this.canvas.setZoomLevel(1); |
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this.canvas.load(source); |
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}; |
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WebODFSandbox.prototype._odfLoaded = function() { |
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var odfcontainer = this.canvas.odfContainer(); |
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console.log("ODF loaded", odfcontainer); |
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this.document_type = odfcontainer.getDocumentType(); |
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var pages = []; |
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switch (this.document_type) { |
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case DOCUMENT_TYPE_PRESENTATION: |
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container.className += " showonepage"; |
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pages = odfcontainer.rootElement.getElementsByTagNameNS(nsResolver('draw'), 'page'); |
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break; |
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default: |
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container.className = this.canvasDom.className.replace(/(?:^|\s)showonepage(?!\S)/g, ""); |
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break; |
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} |
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var numPages = Math.max(1, pages.length); |
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this.postMessage("webodf.loaded", {"url": odfcontainer.getUrl(), "type": this.document_type, "numPages": numPages}); |
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}; |
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WebODFSandbox.prototype.showPage = function(page) { |
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this.canvas.showPage(page); |
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this.redrawPage(); |
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}; |
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WebODFSandbox.prototype.redrawPage = function() { |
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if (this.canvas) { |
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switch (this.document_type) { |
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case DOCUMENT_TYPE_PRESENTATION: |
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this.canvas.fitToContainingElement(container.offsetWidth, container.offsetHeight); |
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break; |
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default: |
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this.canvas.fitToWidth(container.offsetWidth); |
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break; |
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} |
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} |
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}; |
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var sandbox = new WebODFSandbox(window); |
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window.addEventListener("message", function(event) { |
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if (event.origin !== PARENT_ORIGIN) { |
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// only accept messages from spreed-webrtc
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return; |
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} |
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var msg = event.data; |
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var data = msg[msg.type] || {}; |
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switch (msg.type) { |
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case "openFile": |
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sandbox.openFile(data.source); |
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break; |
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case "closeFile": |
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sandbox.closeFile(); |
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break; |
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case "showPage": |
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sandbox.showPage(data.page); |
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break; |
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case "redrawPage": |
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sandbox.redrawPage(); |
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break; |
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default: |
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console.log("Unknown message received", event); |
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break; |
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} |
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}, false); |
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document.addEventListener("keyup", function(event) { |
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sandbox.postMessage("webodf.keyUp", {"key": event.keyCode}); |
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event.preventDefault(); |
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}); |
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window.addEventListener("resize", function() { |
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sandbox.redrawPage(); |
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}); |
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var toggleFullscreen = function(elem) { |
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var fullScreenElement = document.fullscreenElement || document.msFullscreenElement || document.mozFullScreenElement || document.webkitFullscreenElement || document.webkitCurrentFullScreenElement; |
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if (fullScreenElement) { |
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if (document.exitFullscreen) { |
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document.exitFullscreen(); |
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} else if (document.webkitExitFullscreen) { |
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document.webkitExitFullscreen(); |
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} else if (document.mozCancelFullScreen) { |
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document.mozCancelFullScreen(); |
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} else if (document.msExitFullscreen) { |
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document.msExitFullscreen(); |
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} |
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} else { |
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if (elem.requestFullscreen) { |
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elem.requestFullscreen(); |
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} else if (elem.webkitRequestFullscreen) { |
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elem.webkitRequestFullscreen(); |
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} else if (elem.mozRequestFullScreen) { |
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elem.mozRequestFullScreen(); |
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} else if (elem.msRequestFullscreen) { |
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elem.msRequestFullscreen(); |
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} |
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} |
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}; |
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container.addEventListener("dblclick", function(event) { |
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toggleFullscreen(container); |
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}); |
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console.log("WebODF sandbox ready."); |
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sandbox.postMessage("ready", {"ready": true}); |
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})(); |
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@ -0,0 +1,39 @@
@@ -0,0 +1,39 @@
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<!DOCTYPE html> |
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<html> |
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<head> |
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<title>WebODF Sandbox</title> |
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<style type="text/css"> |
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html, body { |
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height:100%; |
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} |
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body { |
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margin:0; |
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padding:0; |
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max-width:100%; |
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max-height:100%; |
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} |
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#container { |
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height:100%; |
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width:100%; |
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overflow-x:hidden; |
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overflow-y:auto; |
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} |
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#container.showonepage { |
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overflow:hidden; |
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text-align:center; |
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} |
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#odfcanvas { |
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cursor:default; |
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user-select:none; |
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-webkit-user-select:none; |
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-moz-user-select:none; |
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} |
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</style> |
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</head> |
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<body> |
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<div id="container"> |
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<div id="odfcanvas"></div> |
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</div> |
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<script src="__WEBODF_SANDBOX_JS_URL__" data-parent-origin="__PARENT_ORIGIN__" data-webodf-url="__WEBODF_URL__"></script> |
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</body> |
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</html> |
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