Now uses FileSystem API for downloading the STL file
Joost Nieuwenhuijse
parent
3b4e1fd1a6
commit
8b51bd6b68
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@ -8,7 +8,7 @@
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body {
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font: 14px/20px 'Helvetica Neue Light', HelveticaNeue-Light, 'Helvetica Neue', Helvetica, Arial, sans-serif;
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max-width: 800px;
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max-width: 820px;
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margin: 0 auto;
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padding: 10px;
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}
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@ -36,8 +36,12 @@ canvas { cursor: move; }
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</style>
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<script>
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var gProcessor=null;
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// Show all exceptions to the user:
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OpenJsCad.AlertUserOfUncaughtExceptions();
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function onload()
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{
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gProcessor = new OpenJsCad.Processor(document.getElementById("viewer"));
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114
openjscad.js
114
openjscad.js
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@ -329,6 +329,41 @@ OpenJsCad.Processor = function(containerdiv, onchange) {
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this.createElements();
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};
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OpenJsCad.FileSystemApiErrorHandler = function(fileError, operation) {
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var errormap = {
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1: NOT_FOUND_ERR,
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2: SECURITY_ERR,
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3: ABORT_ERR,
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4: NOT_READABLE_ERR,
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5: ENCODING_ERR,
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6: NO_MODIFICATION_ALLOWED_ERR,
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7: INVALID_STATE_ERR,
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8: SYNTAX_ERR,
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9: INVALID_MODIFICATION_ERR,
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10: QUOTA_EXCEEDED_ERR,
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11: TYPE_MISMATCH_ERR,
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12: PATH_EXISTS_ERR,
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};
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var errname;
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if(fileError.code in errormap)
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{
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errname = errormap[fileError.code];
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}
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else
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{
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errname = "Error #"+fileError.code;
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}
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var errtxt = "FileSystem API error: "+operation+" returned error "+errname;
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throw new Error(errtxt);
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};
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OpenJsCad.AlertUserOfUncaughtExceptions = function() {
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window.onerror = function(message, url, line) {
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message = message.replace(/^Uncaught /i, "");
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alert(message+"\n\n("+url+" line "+line+")");
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};
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};
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OpenJsCad.Processor.prototype = {
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createElements: function() {
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while(this.containerdiv.children.length > 0)
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@ -419,12 +454,17 @@ OpenJsCad.Processor.prototype = {
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this.errordiv.style.display = (txt == "")? "none":"block";
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},
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setJsCad: function(script) {
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// script: javascript code
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// filename: optional, the name of the .jscad file
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setJsCad: function(script, filename) {
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if(!filename) filename = "openjscad.jscad";
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filename = filename.replace(/\.jscad$/i, "");
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this.abort();
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this.clearViewer();
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this.setError("");
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this.processing = true;
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this.statusspan.innerHTML = "Processing, please wait...";
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this.filename = filename;
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var that = this;
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this.worker = OpenJsCad.javaScriptToSolidASync(script, function(err, csg) {
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that.processing = false;
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@ -456,7 +496,7 @@ OpenJsCad.Processor.prototype = {
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return this.processing;
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},
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clearStl: function() {
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clearStl1: function() {
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if(this.hasstl)
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{
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this.hasstl = false;
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@ -467,7 +507,7 @@ OpenJsCad.Processor.prototype = {
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}
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},
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generateStl: function() {
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generateStl1: function() {
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this.clearStl();
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if(this.validcsg)
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{
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@ -479,4 +519,72 @@ OpenJsCad.Processor.prototype = {
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if(this.onchange) this.onchange();
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}
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},
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clearStl: function() {
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if(this.hasstl)
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{
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this.hasstl = false;
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if(that.stlDirEntry)
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{
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that.stlDirEntry.removeRecursively();
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that.stlDirEntry=null;
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}
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this.enableItems();
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if(this.onchange) this.onchange();
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}
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},
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generateStl: function() {
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this.clearStl();
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if(this.validcsg)
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{
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var stltxt = this.solid.toStlString();
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window.requestFileSystem = window.requestFileSystem || window.webkitRequestFileSystem;
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window.BlobBuilder = window.BlobBuilder || window.WebKitBlobBuilder || window.MozBlobBuilder;
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if(!window.requestFileSystem)
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{
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throw new Error("Your browser does not support the HTML5 FileSystem API");
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}
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if(!window.BlobBuilder)
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{
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throw new Error("Your browser does not support the HTML5 BlobBuilder API");
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}
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// create a random directory name:
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var dirname = "OpenJsCadStlOutput_"+parseInt(Math.random()*1000000000, 10)+".stl";
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var filename = this.filename+".stl";
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var that = this;
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window.requestFileSystem(TEMPORARY, 20*1024*1024, function(fs){
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fs.root.getDirectory(dirname, {create: true, exclusive: true}, function(dirEntry) {
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that.stlDirEntry = dirEntry;
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dirEntry.getFile(filename, {create: true, exclusive: true}, function(fileEntry) {
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fileEntry.createWriter(function(fileWriter) {
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fileWriter.onwriteend = function(e) {
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that.hasstl = true;
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that.downloadStlLink.href = fileEntry.toURL();
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that.enableItems();
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if(that.onchange) that.onchange();
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};
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fileWriter.onerror = function(e) {
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throw new Error('Write failed: ' + e.toString());
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};
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// Create a new Blob and write it to log.txt.
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var bb = new window.BlobBuilder(); // Note: window.WebKitBlobBuilder in Chrome 12.
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bb.append(stltxt);
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fileWriter.write(bb.getBlob());
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},
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function(fileerror){OpenJsCad.FileSystemApiErrorHandler(fileerror, "createWriter");}
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);
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},
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function(fileerror){OpenJsCad.FileSystemApiErrorHandler(fileerror, "getFile('"+filename+"')");}
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);
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},
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function(fileerror){OpenJsCad.FileSystemApiErrorHandler(fileerror, "getDirectory('"+dirname+"')");}
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);
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},
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function(fileerror){OpenJsCad.FileSystemApiErrorHandler(fileerror, "requestFileSystem");}
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);
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}
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},
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};
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@ -8,6 +8,7 @@
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body {
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font: 14px/20px 'Helvetica Neue Light', HelveticaNeue-Light, 'Helvetica Neue', Helvetica, Arial, sans-serif;
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max-width: 820px;
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}
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pre, code, textarea {
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@ -55,19 +56,17 @@ canvas { cursor: move; }
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</style>
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<script>
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var gCurrentFile = null;
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var gCurrentFile = null;
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var gProcessor=null;
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// Show all exceptions to the user:
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OpenJsCad.AlertUserOfUncaughtExceptions();
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function onload()
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{
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try
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{
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gProcessor = new OpenJsCad.Processor(document.getElementById("viewer"));
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setupDragDrop();
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} catch (e) {
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alert(e.toString());
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}
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gProcessor = new OpenJsCad.Processor(document.getElementById("viewer"));
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setupDragDrop();
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}
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function setupDragDrop()
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@ -76,7 +75,7 @@ function setupDragDrop()
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if (window.File && window.FileReader && window.FileList) {
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// Great success! All the File APIs are supported.
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} else {
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alert("Error: Your browser does not fully support the HTML File API");
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throw new Error("Error: Your browser does not fully support the HTML File API");
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}
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var dropZone = document.getElementById('filedropzone');
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dropZone.addEventListener('dragover', function(evt) {
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@ -89,32 +88,27 @@ function setupDragDrop()
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function handleFileSelect(evt)
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{
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try
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evt.stopPropagation();
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evt.preventDefault();
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if(!evt.dataTransfer) throw new Error("Not a datatransfer (1)");
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if(!evt.dataTransfer.files) throw new Error("Not a datatransfer (2)");
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if(evt.dataTransfer.files.length != 1)
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{
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evt.stopPropagation();
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evt.preventDefault();
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if(!evt.dataTransfer) throw new Error("Not a datatransfer (1)");
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if(!evt.dataTransfer.files) throw new Error("Not a datatransfer (2)");
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if(evt.dataTransfer.files.length != 1)
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{
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throw new Error("Please drop a single .jscad file");
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}
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var file = evt.dataTransfer.files[0];
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if(!file.name.match(/\.jscad$/i))
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{
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throw new Error("Please drop a file with .jscad extension");
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}
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if(file.size == 0)
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{
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throw new Error("You have dropped an empty file");
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}
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gCurrentFile = file;
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gPreviousModificationTime = "";
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fileChanged();
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} catch (e) {
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alert(e.toString());
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throw new Error("Please drop a single .jscad file");
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}
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var file = evt.dataTransfer.files[0];
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if(!file.name.match(/\.jscad$/i))
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{
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throw new Error("Please drop a file with .jscad extension");
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}
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if(file.size == 0)
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{
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throw new Error("You have dropped an empty file");
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}
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gCurrentFile = file;
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gPreviousModificationTime = "";
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fileChanged();
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}
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function fileChanged()
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@ -144,33 +138,34 @@ function parseFile()
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var txt = evt.target.result;
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};
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reader.onloadend = function(evt) {
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try
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if (evt.target.readyState == FileReader.DONE)
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{
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if (evt.target.readyState == FileReader.DONE)
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var jscadscript = evt.target.result;
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if(jscadscript == "")
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{
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var jscadscript = evt.target.result;
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if(jscadscript == "")
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if(document.location.toString().match(/^file\:\//i))
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{
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throw new Error("Could not read file. This may be due to security restrictions: in Google Chrome the File API only works if this html page is on a web server. Accessing this page from your hard drive does not work.");
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if(gProcessor) gProcessor.clearViewer();
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throw new Error("Could not read file. You are using a local copy of OpenJsCad; if you are using Chrome, you need to launch it with the following command line option:\n\n--allow-file-access-from-files\n\notherwise the browser will not have access to uploaded files due to security restrictions.");
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}
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else
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{
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if(gProcessor)
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{
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gProcessor.setJsCad(jscadscript);
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}
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}
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{
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throw new Error("Could not read file.");
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}
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}
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else
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{
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throw new Error("Failed to read file");
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if(gProcessor) gProcessor.clearViewer();
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{
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if(gProcessor)
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{
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var filename = gCurrentFile.name;
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filename = filename.replace(/^.*\/([^\/]*)$/, "$1");
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gProcessor.setJsCad(jscadscript, filename);
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}
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}
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}
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catch(e)
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else
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{
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alert(e.toString());
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throw new Error("Failed to read file");
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if(gProcessor) gProcessor.clearViewer();
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}
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};
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reader.readAsText(gCurrentFile, "UTF-8");
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