").html(settings.androidPostUnsupportedMessageHtml).dialog(settings.dialogOptions);
+ } else {
+ alert(settings.androidPostUnsupportedMessageHtml);
+ }
+
+ return deferred.reject();
+ }
+
+ var $preparingDialog = null;
+
+ var internalCallbacks = {
+
+ onPrepare: function (url) {
+
+ //wire up a jquery dialog to display the preparing message if specified
+ if (settings.preparingMessageHtml) {
+
+ $preparingDialog = $("
").html(settings.preparingMessageHtml).dialog(settings.dialogOptions);
+
+ } else if (settings.prepareCallback) {
+
+ settings.prepareCallback(url);
+
+ }
+
+ },
+
+ onSuccess: function (url) {
+
+ //remove the perparing message if it was specified
+ if ($preparingDialog) {
+ $preparingDialog.dialog('close');
+ };
+
+ settings.successCallback(url);
+
+ deferred.resolve(url);
+ },
+
+ onFail: function (responseHtml, url) {
+
+ //remove the perparing message if it was specified
+ if ($preparingDialog) {
+ $preparingDialog.dialog('close');
+ };
+
+ //wire up a jquery dialog to display the fail message if specified
+ if (settings.failMessageHtml) {
+ $("
").html(settings.failMessageHtml).dialog(settings.dialogOptions);
+ }
+
+ settings.failCallback(responseHtml, url);
+
+ deferred.reject(responseHtml, url);
+ }
+ };
+
+ internalCallbacks.onPrepare(fileUrl);
+
+ //make settings.data a param string if it exists and isn't already
+ if (settings.data !== null && typeof settings.data !== "string") {
+ settings.data = $.param(settings.data);
+ }
+
+
+ var $iframe,
+ downloadWindow,
+ formDoc,
+ $form;
+
+ if (httpMethodUpper === "GET") {
+
+ if (settings.data !== null) {
+ //need to merge any fileUrl params with the data object
+
+ var qsStart = fileUrl.indexOf('?');
+
+ if (qsStart !== -1) {
+ //we have a querystring in the url
+
+ if (fileUrl.substring(fileUrl.length - 1) !== "&") {
+ fileUrl = fileUrl + "&";
+ }
+ } else {
+
+ fileUrl = fileUrl + "?";
+ }
+
+ fileUrl = fileUrl + settings.data;
+ }
+
+ if (isIos || isAndroid) {
+
+ downloadWindow = window.open(fileUrl);
+ downloadWindow.document.title = settings.popupWindowTitle;
+ window.focus();
+
+ } else if (isOtherMobileBrowser) {
+
+ window.location(fileUrl);
+
+ } else {
+
+ //create a temporary iframe that is used to request the fileUrl as a GET request
+ $iframe = $("").appendTo("body");
+ formDoc = getiframeDocument($iframe);
+ }
+
+ formDoc.write("" + settings.popupWindowTitle + "");
+ $form = $(formDoc).find('form');
+ }
+
+ $form.submit();
+ }
+
+
+ //check if the file download has completed every checkInterval ms
+ setTimeout(checkFileDownloadComplete, settings.checkInterval);
+
+
+ function checkFileDownloadComplete() {
+
+ //has the cookie been written due to a file download occuring?
+ if (document.cookie.indexOf(settings.cookieName + "=" + settings.cookieValue) != -1) {
+
+ //execute specified callback
+ internalCallbacks.onSuccess(fileUrl);
+
+ //remove the cookie and iframe
+ document.cookie = settings.cookieName + "=; expires=" + new Date(1000).toUTCString() + "; path=" + settings.cookiePath;
+
+ cleanUp(false);
+
+ return;
+ }
+
+ //has an error occured?
+ //if neither containers exist below then the file download is occuring on the current window
+ if (downloadWindow || $iframe) {
+
+ //has an error occured?
+ try {
+
+ var formDoc = downloadWindow ? downloadWindow.document : getiframeDocument($iframe);
+
+ if (formDoc && formDoc.body != null && formDoc.body.innerHTML.length) {
+
+ var isFailure = true;
+
+ if ($form && $form.length) {
+ var $contents = $(formDoc.body).contents().first();
+
+ if ($contents.length && $contents[0] === $form[0]) {
+ isFailure = false;
+ }
+ }
+
+ if (isFailure) {
+ internalCallbacks.onFail(formDoc.body.innerHTML, fileUrl);
+
+ cleanUp(true);
+
+ return;
+ }
+ }
+ }
+ catch (err) {
+
+ //500 error less than IE9
+ internalCallbacks.onFail('', fileUrl);
+
+ cleanUp(true);
+
+ return;
+ }
+ }
+
+
+ //keep checking...
+ setTimeout(checkFileDownloadComplete, settings.checkInterval);
+ }
+
+ //gets an iframes document in a cross browser compatible manner
+ function getiframeDocument($iframe) {
+ var iframeDoc = $iframe[0].contentWindow || $iframe[0].contentDocument;
+ if (iframeDoc.document) {
+ iframeDoc = iframeDoc.document;
+ }
+ return iframeDoc;
+ }
+
+ function cleanUp(isFailure) {
+
+ setTimeout(function() {
+
+ if (downloadWindow) {
+
+ if (isAndroid) {
+ downloadWindow.close();
+ }
+
+ if (isIos) {
+ downloadWindow.focus(); //ios safari bug doesn't allow a window to be closed unless it is focused
+ if (isFailure) {
+ downloadWindow.close();
+ }
+ }
+ }
+
+ //iframe cleanup appears to randomly cause the download to fail
+ //not doing it seems better than failure...
+ //if ($iframe) {
+ // $iframe.remove();
+ //}
+
+ }, 0);
+ }
+
+
+ function htmlSpecialCharsEntityEncode(str) {
+ return str.replace(htmlSpecialCharsRegEx, function(match) {
+ return '&' + htmlSpecialCharsPlaceHolders[match];
+ });
+ }
+
+ return deferred.promise();
+ }
+});
+
+})(jQuery, this);
+
+ 
+ 
+
+
+