class DragDropHtml5FromDesktopExample(VerticalLayout):
def __init__(self):
super(DragDropHtml5FromDesktopExample, self).__init__()
self.addComponent(
Label('Drag text from desktop application or '
'image files from the ' + 'file system to the drop box '
'below (dragging files requires HTML5 capable browser '
'like FF 3.6, Safari or Chrome)'))
dropPane = CssLayout()
dropPane.setWidth('200px')
dropPane.setHeight('200px')
dropPane.addStyleName('image-drop-pane')
dropBox = ImageDropBox(dropPane, self)
dropBox.setSizeUndefined()
panel = Panel(dropBox)
panel.setSizeUndefined()
panel.addStyleName('no-vertical-drag-hints')
panel.addStyleName('no-horizontal-drag-hints')
self.addComponent(panel)
self._progress = ProgressIndicator()
self._progress.setIndeterminate(True)
self._progress.setVisible(False)
self.addComponent(self._progress)
def attach(self):
super(DragDropHtml5FromDesktopExample, self).attach()
# warn the user if the browser does not support file drop
context = self.getApplication().getContext()
if isinstance(context, AbstractWebApplicationContext):
webBrowser = context.getBrowser()
# FF
supportsHtml5FileDrop = (
webBrowser.isFirefox() and
(webBrowser.getBrowserMajorVersion() >= 4)
or (webBrowser.getBrowserMajorVersion() == 3
and webBrowser.getBrowserMinorVersion() >= 6))
if not supportsHtml5FileDrop:
# pretty much all chromes and safaris are new enough
supportsHtml5FileDrop = (
webBrowser.isChrome()
or (webBrowser.isSafari()
and webBrowser.getBrowserMajorVersion() > 4))
if not supportsHtml5FileDrop:
self.getWindow().showNotification(
'Image file drop is '
'only supported on Firefox 3.6 and later. '
'Text can be dropped into the box on other browsers.',
Notification.TYPE_WARNING_MESSAGE)
class DragDropHtml5FromDesktopExample(VerticalLayout):
def __init__(self):
super(DragDropHtml5FromDesktopExample, self).__init__()
self.addComponent(Label('Drag text from desktop application or '
'image files from the ' + 'file system to the drop box '
'below (dragging files requires HTML5 capable browser '
'like FF 3.6, Safari or Chrome)'))
dropPane = CssLayout()
dropPane.setWidth('200px')
dropPane.setHeight('200px')
dropPane.addStyleName('image-drop-pane')
dropBox = ImageDropBox(dropPane, self)
dropBox.setSizeUndefined()
panel = Panel(dropBox)
panel.setSizeUndefined()
panel.addStyleName('no-vertical-drag-hints')
panel.addStyleName('no-horizontal-drag-hints')
self.addComponent(panel)
self._progress = ProgressIndicator()
self._progress.setIndeterminate(True)
self._progress.setVisible(False)
self.addComponent(self._progress)
def attach(self):
super(DragDropHtml5FromDesktopExample, self).attach()
# warn the user if the browser does not support file drop
context = self.getApplication().getContext()
if isinstance(context, AbstractWebApplicationContext):
webBrowser = context.getBrowser()
# FF
supportsHtml5FileDrop = (webBrowser.isFirefox()
and (webBrowser.getBrowserMajorVersion() >= 4)
or (webBrowser.getBrowserMajorVersion() == 3
and webBrowser.getBrowserMinorVersion() >= 6))
if not supportsHtml5FileDrop:
# pretty much all chromes and safaris are new enough
supportsHtml5FileDrop = (webBrowser.isChrome()
or (webBrowser.isSafari()
and webBrowser.getBrowserMajorVersion() > 4))
if not supportsHtml5FileDrop:
self.getWindow().showNotification('Image file drop is '
'only supported on Firefox 3.6 and later. '
'Text can be dropped into the box on other browsers.',
Notification.TYPE_WARNING_MESSAGE)
class UploadWithProgressMonitoringExample(VerticalLayout):
def __init__(self):
super(UploadWithProgressMonitoringExample, self).__init__()
self.setSpacing(True)
self._state = Label()
self._result = Label()
self._fileName = Label()
self._textualProgress = Label()
self._pi = ProgressIndicator()
self._counter = LineBreakCounter()
self._upload = Upload(None, self._counter)
self.addComponent(Label('Upload a file and we\'ll count the number '
'of line break characters (\\n) found in it.'))
# make analyzing start immediatedly when file is selected
self._upload.setImmediate(True)
self._upload.setButtonCaption('Upload File')
self.addComponent(self._upload)
handBrake = CheckBox('Simulate slow server')
handBrake.setValue(True)
self._counter.setSlow(True)
handBrake.setDescription('Sleep for 100ms after each kilobyte to '
'simulate slower processing/bandwidth. This is to show '
'progress indicator even with rather small files.')
handBrake.addListener(HandBrakeListener(self), button.IClickListener)
cancelProcessing = Button('Cancel')
cancelProcessing.addListener(CancelListener(self),
button.IClickListener)
cancelProcessing.setVisible(False)
cancelProcessing.setStyleName('small')
handBrake.setImmediate(True)
self.addComponent(handBrake)
p = Panel('Status')
p.setSizeUndefined()
l = FormLayout()
l.setMargin(True)
p.setContent(l)
stateLayout = HorizontalLayout()
stateLayout.setSpacing(True)
stateLayout.addComponent(self._state)
stateLayout.addComponent(cancelProcessing)
stateLayout.setCaption('Current state')
self._state.setValue('Idle')
l.addComponent(stateLayout)
self._fileName.setCaption('File name')
l.addComponent(self._fileName)
self._result.setCaption('Line breaks counted')
l.addComponent(self._result)
self._pi.setCaption('Progress')
self._pi.setVisible(False)
l.addComponent(self._pi)
self._textualProgress.setVisible(False)
l.addComponent(self._textualProgress)
self.addComponent(p)
self._upload.addListener(StartedListener(self),
upload.IStartedListener)
self._upload.addListener(ProgressListener(self),
upload.IProgressListener)
self._upload.addListener(SucceededListener(self),
upload.ISucceededListener)
self._upload.addListener(FailedListener(self),
upload.IFailedListener)
self._upload.addListener(FinishedListener(self),
upload.IFinishedListener)
class UploadWithProgressMonitoringExample(VerticalLayout):
def __init__(self):
super(UploadWithProgressMonitoringExample, self).__init__()
self.setSpacing(True)
self._state = Label()
self._result = Label()
self._fileName = Label()
self._textualProgress = Label()
self._pi = ProgressIndicator()
self._counter = LineBreakCounter()
self._upload = Upload(None, self._counter)
self.addComponent(
Label('Upload a file and we\'ll count the number '
'of line break characters (\\n) found in it.'))
# make analyzing start immediatedly when file is selected
self._upload.setImmediate(True)
self._upload.setButtonCaption('Upload File')
self.addComponent(self._upload)
handBrake = CheckBox('Simulate slow server')
handBrake.setValue(True)
self._counter.setSlow(True)
handBrake.setDescription(
'Sleep for 100ms after each kilobyte to '
'simulate slower processing/bandwidth. This is to show '
'progress indicator even with rather small files.')
handBrake.addListener(HandBrakeListener(self), button.IClickListener)
cancelProcessing = Button('Cancel')
cancelProcessing.addListener(CancelListener(self),
button.IClickListener)
cancelProcessing.setVisible(False)
cancelProcessing.setStyleName('small')
handBrake.setImmediate(True)
self.addComponent(handBrake)
p = Panel('Status')
p.setSizeUndefined()
l = FormLayout()
l.setMargin(True)
p.setContent(l)
stateLayout = HorizontalLayout()
stateLayout.setSpacing(True)
stateLayout.addComponent(self._state)
stateLayout.addComponent(cancelProcessing)
stateLayout.setCaption('Current state')
self._state.setValue('Idle')
l.addComponent(stateLayout)
self._fileName.setCaption('File name')
l.addComponent(self._fileName)
self._result.setCaption('Line breaks counted')
l.addComponent(self._result)
self._pi.setCaption('Progress')
self._pi.setVisible(False)
l.addComponent(self._pi)
self._textualProgress.setVisible(False)
l.addComponent(self._textualProgress)
self.addComponent(p)
self._upload.addListener(StartedListener(self),
upload.IStartedListener)
self._upload.addListener(ProgressListener(self),
upload.IProgressListener)
self._upload.addListener(SucceededListener(self),
upload.ISucceededListener)
self._upload.addListener(FailedListener(self), upload.IFailedListener)
self._upload.addListener(FinishedListener(self),
upload.IFinishedListener)