public void setFileInput(IFileInput input) {
if (fileInput != null) {
fileInput.asWidget().removeFromParent();
}
fileInput = input;
fileInput.addChangeHandler(onFileInputChanged);
fileInput.setText(
fileInput instanceof IDragAndDropFileInput
? i18nStrs.uploaderDrop()
: i18nStrs.uploaderBrowse());
fileInput.setEnabled(enabled);
setFileInputSize(DEFAULT_FILEINPUT_SIZE);
assignNewNameToFileInput();
uploadForm.add(fileInput.asWidget());
}
/** Change the fileInput name, because the server uses it as an uniq identifier. */
protected void assignNewNameToFileInput() {
String fileInputName = (fileInputPrefix + "-" + Math.random()).replaceAll("\\.", "");
if (multiple) {
fileInputName += MULTI_SUFFIX;
}
fileInput.setName(fileInputName);
}
/* (non-Javadoc)
* @see gwtupload.client.IUploader#setValidExtensions(java.lang.String[])
*/
public void setValidExtensions(String... extensions) {
this.validExtensions = new ArrayList<String>();
validExtensionsMsg = "";
if (extensions == null || extensions.length == 0) {
return;
}
List<String> v = new ArrayList<String>();
String accept = "";
for (String ext : extensions) {
if (ext == null) {
continue;
}
if (ext.contains("/")) {
accept += (accept.isEmpty() ? "" : ",") + ext;
continue;
}
if (!ext.startsWith(".")) ext = "." + ext;
accept += (accept.isEmpty() ? "" : ",") + ext;
validExtensionsMsg += (validExtensionsMsg.isEmpty() ? "" : ",") + ext;
ext = ext.replaceAll("\\.", "\\\\.");
ext = ".+" + ext;
validExtensions.add(ext);
}
fileInput.setAccept(accept);
}
/* (non-Javadoc)
* @see gwtupload.client.IUploader#setI18Constants(gwtupload.client.I18nUploadConstants)
*/
public void setI18Constants(UploaderConstants strs) {
this.i18nStrs = strs;
fileInput.setText(
fileInput instanceof IDragAndDropFileInput
? i18nStrs.uploaderDrop()
: i18nStrs.uploaderBrowse());
statusWidget.setI18Constants(strs);
}
public boolean anyFileIsRepeated(boolean checkOnlyUploadedFiles) {
if (!multiple && avoidRepeatedFiles) {
for (String s : fileInput.getFilenames()) {
if (fileDone.contains(s) || (!checkOnlyUploadedFiles && fileUploading.contains(s)))
return true;
}
}
return false;
}
public void onResponseReceived(Request request, Response response) {
String text = response.getText();
String url = null;
Document document = null;
String bpath = "<" + TAG_BLOBSTORE_PATH + ">";
String sbpath = "</" + TAG_BLOBSTORE_PATH + ">";
if (text.contains(bpath)) {
try {
document = XMLParser.parse(text);
url = Utils.getXmlNodeValue(document, TAG_BLOBSTORE_PATH);
} catch (Exception e) {
cancelUpload(
i18nStrs.uploaderBlobstoreError() + "\n>>>\n" + e.getMessage() + "\n>>>>\n" + e);
return;
}
if (url == null) {
url =
text.replaceAll("[\r\n]+", "")
.replaceAll("^.*" + bpath + "\\s*", "")
.replaceAll("\\s*" + sbpath + ".*$", "");
}
}
if (url != null && url.length() > 0 && !"null".equalsIgnoreCase(url)) {
if (session.getServletPath().startsWith("http")) {
url = session.getServletPath().replaceFirst("(https?://[^/]+).*", "$1") + url;
}
uploadForm.setAction(url);
} else {
uploadForm.setAction(session.getServletPath());
}
removeHiddens();
if (document != null) {
String name = Utils.getXmlNodeValue(document, TAG_BLOBSTORE_NAME);
if (name != null) {
fileInput.setName(name);
}
NodeList list = document.getElementsByTagName(TAG_BLOBSTORE_PARAM);
for (int i = 0; i < list.getLength(); i++) {
Node node = list.item(i);
String value = Utils.getXmlNodeValue(node);
if (value != null) {
Node attribute = node.getAttributes().getNamedItem(ATTR_BLOBSTORE_PARAM_NAME);
if (attribute != null) {
String paramName = attribute.getNodeValue();
if (paramName != null) {
addHidden(paramName, value);
}
}
}
}
}
receivedBlobPath = true;
uploadForm.submit();
}
/* (non-Javadoc)
* @see gwtupload.client.IUpdateable#update()
*/
public void update() {
if (waitingForResponse) {
return;
}
waitingForResponse = true;
session.sendRequest(
"get_status",
onStatusReceivedCallback,
"filename=" + fileInput.getName().replace(MULTI_SUFFIX, ""),
"c=" + requestsCounter++);
}
/**
* Sends a request to the server in order to get the blobstore path. When the response with the
* session comes, it submits the form.
*/
private void sendAjaxRequestToGetBlobstorePath() throws RequestException {
session.sendRequest(
"blobstore",
onBlobstoreReceivedCallback,
PARAM_BLOBSTORE
+ "=true&"
+ PARAM_NAME
+ "="
+ getInputName()
+ "&"
+ PARAM_FILENAME
+ "="
+ fileInput.getFilename());
}
/**
* Called when the uploader detects that the upload process has finished: - in the case of submit
* complete. - in the case of error talking with the server.
*/
private void uploadFinished() {
removeFromQueue();
finished = true;
uploading = false;
updateStatusTimer.cancel();
statusWidget.setVisible(false);
if (successful) {
if (avoidRepeatedFiles) {
fileDone.addAll(fileInput.getFilenames());
statusWidget.setStatus(IUploadStatus.Status.SUCCESS);
} else {
statusWidget.setStatus(IUploadStatus.Status.SUCCESS);
}
} else if (canceled) {
statusWidget.setStatus(IUploadStatus.Status.CANCELED);
} else {
statusWidget.setStatus(IUploadStatus.Status.ERROR);
}
onFinishUpload();
reatachIframe(uploadForm.getElement().getAttribute("target"));
}
/* (non-Javadoc)
* @see gwtupload.client.IUploader#setFileInputSize(int)
*/
public void setFileInputSize(int length) {
fileInput.setLength(length);
}
/* (non-Javadoc)
* @see gwtupload.client.IUploader#setEnabled(boolean)
*/
public void setEnabled(boolean b) {
enabled = b;
if (fileInput != null) {
fileInput.setEnabled(b);
}
}
public String getInputName() {
return fileInput.getName().replace(MULTI_SUFFIX, "");
}
/* (non-Javadoc)
* @see gwtupload.client.IUploader#getFileNames()
*/
public List<String> getFileNames() {
return fileInput.getFilenames();
}
/* (non-Javadoc)
* @see gwtupload.client.IUploader#getFileName()
*/
public String getFileName() {
return fileInput.getFilename();
}
/** Remove all widget from the form. */
public void clear() {
uploadForm.clear();
uploadForm.add(fileInput.asWidget());
}
public void setMultipleSelection(boolean b) {
multiple = b;
fileInput.enableMultiple(b);
}