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qrcodejs
kopia lustrzana https://github.com/viljoviitanen/qrcodejs
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Store off reference to this for use with callbacks 

Had forgotten to save of reference to this so that callbacks would have
a reference to the original instance.
refactoring
David Clarke 2013-05-26 17:32:44 -07:00
rodzic 0a85290fb2
commit fb63f65bf6
1 zmienionych plików z 32 dodań i 31 usunięć
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63
qrcode.js
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@ -203,37 +203,38 @@ var QRCode;
* @param {Function} fFail Occurs if it doesn't support Data URI
*/
function _safeSetDataURI(fSuccess, fFail) {
this._fFail = fFail;
this._fSuccess = fSuccess;
// Check it just once
if (this._bSupportDataURI === null) {
var el = document.createElement("img");
var fOnError = function () {
this._bSupportDataURI = false;
if (this._fFail) {
_fFail.call(this);
}
};
var fOnSuccess = function () {
this._bSupportDataURI = true;
if (this._fSuccess) {
_fSuccess.call(this);
}
};
el.onabort = fOnError;
el.onerror = fOnError;
el.onload = fOnSuccess;
el.src = "data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="; // the Image contains 1px data.
return;
} else if (this._bSupportDataURI === true && this._fSuccess) {
_fSuccess.call(this);
} else if (this._bSupportDataURI === false && this._fFail) {
_fFail.call(this);
}
var self = this;
self._fFail = fFail;
self._fSuccess = fSuccess;
// Check it just once
if (self._bSupportDataURI === null) {
var el = document.createElement("img");
var fOnError = function() {
self._bSupportDataURI = false;
if (self._fFail) {
_fFail.call(self);
}
};
var fOnSuccess = function() {
self._bSupportDataURI = true;
if (self._fSuccess) {
self._fSuccess.call(self);
}
};
el.onabort = fOnError;
el.onerror = fOnError;
el.onload = fOnSuccess;
el.src = "data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="; // the Image contains 1px data.
return;
} else if (self._bSupportDataURI === true && self._fSuccess) {
self._fSuccess.call(self);
} else if (self._bSupportDataURI === false && self._fFail) {
self._fFail.call(self);
}
};
/**