quyse/flaw

function h$flaw_js_init(callback) {
    // asyncronously pass control to callback, so document's body can be loaded
    setTimeout(callback, 0);
}

// read field using vendor prefix if needed
function h$flaw_js_vendor_fixup_read(object, field) {
    var r = object[field];
    if(r === undefined) {
        var Field = field[0].toUpperCase() + field.substr(1);
        r = object["webkit" + Field] || object["moz" + Field] || object["o" + Field] || object["ms" + Field];
    }
    return r;
}

// fixup object's method using vendor prefix if needed
function h$flaw_js_vendor_fixup_method(object, method) {
    if(!object[method]) {
        object[method] = h$flaw_js_vendor_fixup_read(object, method);
    }
}

// fixup object's event using vendor prefix if needed
function h$flaw_js_vendor_fixup_addEventListener(object, event, listener, options) {
    object.addEventListener((("on" + event) in object) ? event
        : (("onwebkit" + event) in object) ? ("webkit" + event)
        : (("onmoz" + event) in object) ? ("moz" + event)
        : (("ono" + event) in object) ? ("o" + event)
        : (("ms" + event) in object) ? ("ms" + event)
        : event, listener, options);
}

// get params map from URL
function h$flaw_js_get_url_params() {
    var pieces = window.location.search.substr(1).split('&');
    var keyValues = {};
    for(var i = 0; i < pieces.length; ++i) {
        var keyValue = pieces[i].split('=');
        keyValues[decodeURIComponent(keyValue[0])] = decodeURIComponent(keyValue[1]);
    }
    return keyValues;
}

function h$flaw_js_blob_to_array_buffer(blob, callback) {
    var reader = new FileReader();
    reader.addEventListener("loadend", function() {
        callback(reader.result);
    });
    reader.readAsArrayBuffer(blob);
}

function h$flaw_js_load_url(url, callback) {
    var xhr = new XMLHttpRequest();
    xhr.open('GET', url, true);
    xhr.responseType = 'arraybuffer';
    xhr.onload = function(e) {
        callback(this.status == 200 ? this.response : new ArrayBuffer(0));
    };
    xhr.send();
}

function h$flaw_js_object_url(mime, object) {
    return URL.createObjectURL(new Blob([object], {
        type: mime
    }));
}