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var Module = {
preRun: [],
postRun: [
function() {
init_drag_and_drop();
},
],
print: (function() {
return function(text) {
text = Array.prototype.slice.call(arguments).join(' ');
console.log(text);
};
})(),
printErr: function(text) {
text = Array.prototype.slice.call(arguments).join(' ');
console.error(text);
},
canvas: (function() {
var canvas = document.getElementById('canvas');
canvas.addEventListener("webglcontextlost", function(e) { alert('FIXME: WebGL context lost, please reload the page'); e.preventDefault(); }, false);
return canvas;
})(),
setStatus: function(text) {
console.log("status: " + text);
},
monitorRunDependencies: function(left) {
console.log("monitor run deps: " + left);
},
};
window.onerror = function(event) {
console.log("onerror: " + event);
};
function id(id) {
return document.getElementById(id);
}
/* drag'n'drop support to load local files into emulators */
function init_drag_and_drop() {
// add a drag'n'drop handler to the WebGL canvas
id('canvas').addEventListener('dragenter', load_dragenter, false);
id('canvas').addEventListener('dragleave', load_dragleave, false);
id('canvas').addEventListener('dragover', load_dragover, false);
id('canvas').addEventListener('drop', load_drop, false);
}
function load_dragenter(e) {
e.stopPropagation();
e.preventDefault();
}
function load_dragleave(e) {
e.stopPropagation();
e.preventDefault();
}
function load_dragover(e) {
e.stopPropagation();
e.preventDefault();
}
function load_drop(e) {
e.stopPropagation();
e.preventDefault();
load_file(e.dataTransfer.files);
}
function load_file(files) {
if (files.length > 0) {
let file = files[0];
console.log('--- load file:');
console.log(' name: ' + file.name);
console.log(' type: ' + file.type);
console.log(' size: ' + file.size);
// load the file content (ignore big files)
if (file.size < 256000) {
let reader = new FileReader();
reader.onload = function(loadEvent) {
console.log('file loaded!')
let content = loadEvent.target.result;
if (content) {
console.log('content length: ' + content.byteLength);
let uint8Array = new Uint8Array(content);
let res = Module.ccall('emsc_loadfile', // C function name
'int',
['array', 'number'], // name, data, size
[uint8Array, uint8Array.length]);
if (res == 0) {
console.warn('emsc_loadfile() failed!');
}
}
else {
console.warn('load result empty!');
}
};
reader.readAsArrayBuffer(file);
}
else {
console.warn('ignoring dropped file because it is too big')
}
}
}