class AutoCompleteTextBox(TextBox):
def __init__(self):
self.choicesPopup = PopupPanel(True)
self.choices = ListBox()
self.items = SimpleAutoCompletionItems()
self.popupAdded = False
self.visible = False
TextBox.__init__(self)
self.addKeyboardListener(self)
self.choices.addChangeListener(self)
self.setStyleName("AutoCompleteTextBox")
self.choicesPopup.add(self.choices)
self.choicesPopup.addStyleName("AutoCompleteChoices")
self.choices.setStyleName("list")
def setCompletionItems(self, items):
if not items.getCompletionItems:
items = SimpleAutoCompletionItems(items)
self.items = items
def getCompletionItems(self):
return self.items
def onKeyDown(self, arg0, arg1, arg2):
pass
def onKeyPress(self, arg0, arg1, arg2):
pass
def onKeyUp(self, arg0, arg1, arg2):
if arg1 == KeyboardListener.KEY_DOWN:
selectedIndex = self.choices.getSelectedIndex()
selectedIndex += 1
if selectedIndex > self.choices.getItemCount():
selectedIndex = 0
self.choices.setSelectedIndex(selectedIndex)
return
if arg1 == KeyboardListener.KEY_UP:
selectedIndex = self.choices.getSelectedIndex()
selectedIndex -= 1
if selectedIndex < 0:
selectedIndex = self.choices.getItemCount()
self.choices.setSelectedIndex(selectedIndex)
return
if arg1 == KeyboardListener.KEY_ENTER:
if self.visible:
self.complete()
return
if arg1 == KeyboardListener.KEY_ESCAPE:
self.choices.clear()
self.choicesPopup.hide()
self.visible = False
return
text = self.getText()
matches = []
if len(text) > 0:
matches = self.items.getCompletionItems(text)
if len(matches) > 0:
self.choices.clear()
for i in range(len(matches)):
self.choices.addItem(matches[i])
if len(matches) == 1 and matches[0] == text:
self.choicesPopup.hide()
else:
self.choices.setSelectedIndex(0)
self.choices.setVisibleItemCount(len(matches) + 1)
if not self.popupAdded:
RootPanel().add(self.choicesPopup)
self.popupAdded = True
self.choicesPopup.show()
self.visible = True
self.choicesPopup.setPopupPosition(self.getAbsoluteLeft(), self.getAbsoluteTop() + self.getOffsetHeight())
self.choices.setWidth(self.getOffsetWidth() + "px")
else:
self.visible = False
self.choicesPopup.hide()
def onChange(self, arg0):
self.complete()
def onClick(self, arg0):
self.complete()
def complete(self):
if self.choices.getItemCount() > 0:
self.setText(self.choices.getItemText(self.choices.getSelectedIndex()))
self.choices.clear()
self.choicesPopup.hide()
self.setFocus(True)
