deac/OpenJsCad
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Now uses FileSystem API for downloading the STL file

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This commit is contained in:
Joost Nieuwenhuijse 2012-02-13 18:19:37 +01:00
parent 3b4e1fd1a6
commit 8b51bd6b68
3 changed files with 161 additions and 54 deletions
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95
processfile.html
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@ -8,6 +8,7 @@
body {
font: 14px/20px 'Helvetica Neue Light', HelveticaNeue-Light, 'Helvetica Neue', Helvetica, Arial, sans-serif;
max-width: 820px;
}
pre, code, textarea {
@ -55,19 +56,17 @@ canvas { cursor: move; }
</style>
<script>
var gCurrentFile = null;
var gCurrentFile = null;
var gProcessor=null;
// Show all exceptions to the user:
OpenJsCad.AlertUserOfUncaughtExceptions();
function onload()
{
try
{
gProcessor = new OpenJsCad.Processor(document.getElementById("viewer"));
setupDragDrop();
} catch (e) {
alert(e.toString());
}
gProcessor = new OpenJsCad.Processor(document.getElementById("viewer"));
setupDragDrop();
}
function setupDragDrop()
@ -76,7 +75,7 @@ function setupDragDrop()
if (window.File && window.FileReader && window.FileList) {
// Great success! All the File APIs are supported.
} else {
alert("Error: Your browser does not fully support the HTML File API");
throw new Error("Error: Your browser does not fully support the HTML File API");
}
var dropZone = document.getElementById('filedropzone');
dropZone.addEventListener('dragover', function(evt) {
@ -89,32 +88,27 @@ function setupDragDrop()
function handleFileSelect(evt)
{
try
evt.stopPropagation();
evt.preventDefault();
if(!evt.dataTransfer) throw new Error("Not a datatransfer (1)");
if(!evt.dataTransfer.files) throw new Error("Not a datatransfer (2)");
if(evt.dataTransfer.files.length != 1)
{
evt.stopPropagation();
evt.preventDefault();
if(!evt.dataTransfer) throw new Error("Not a datatransfer (1)");
if(!evt.dataTransfer.files) throw new Error("Not a datatransfer (2)");
if(evt.dataTransfer.files.length != 1)
{
throw new Error("Please drop a single .jscad file");
}
var file = evt.dataTransfer.files[0];
if(!file.name.match(/\.jscad$/i))
{
throw new Error("Please drop a file with .jscad extension");
}
if(file.size == 0)
{
throw new Error("You have dropped an empty file");
}
gCurrentFile = file;
gPreviousModificationTime = "";
fileChanged();
} catch (e) {
alert(e.toString());
throw new Error("Please drop a single .jscad file");
}
var file = evt.dataTransfer.files[0];
if(!file.name.match(/\.jscad$/i))
{
throw new Error("Please drop a file with .jscad extension");
}
if(file.size == 0)
{
throw new Error("You have dropped an empty file");
}
gCurrentFile = file;
gPreviousModificationTime = "";
fileChanged();
}
function fileChanged()
@ -144,33 +138,34 @@ function parseFile()
var txt = evt.target.result;
};
reader.onloadend = function(evt) {
try
if (evt.target.readyState == FileReader.DONE)
{
if (evt.target.readyState == FileReader.DONE)
var jscadscript = evt.target.result;
if(jscadscript == "")
{
var jscadscript = evt.target.result;
if(jscadscript == "")
if(document.location.toString().match(/^file\:\//i))
{
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.");
if(gProcessor) gProcessor.clearViewer();
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.");
}
else
{
if(gProcessor)
{
gProcessor.setJsCad(jscadscript);
}
}
{
throw new Error("Could not read file.");
}
}
else
{
throw new Error("Failed to read file");
if(gProcessor) gProcessor.clearViewer();
{
if(gProcessor)
{
var filename = gCurrentFile.name;
filename = filename.replace(/^.*\/([^\/]*)$/, "$1");
gProcessor.setJsCad(jscadscript, filename);
}
}
}
catch(e)
else
{
alert(e.toString());
throw new Error("Failed to read file");
if(gProcessor) gProcessor.clearViewer();
}
};
reader.readAsText(gCurrentFile, "UTF-8");