protected override void OnKeyDown(KeyEventArgs e)
{
bool markHandled = ValueEditorUtils.GetHandlesCommitKeys(this);
if (e.Key == Key.Return || e.Key == Key.Enter)
{
LostFocusAction savedAction = this.lostFocusAction;
this.lostFocusAction = LostFocusAction.None;
if (savedAction == LostFocusAction.Commit)
{
this.CommitChange();
}
if ((e.KeyboardDevice.Modifiers & ModifierKeys.Shift) == 0)
{
this.OnFinishEditing();
}
e.Handled |= markHandled;
}
else if (e.Key == Key.Escape && this.IsEditing)
{
LostFocusAction savedAction = this.lostFocusAction;
this.lostFocusAction = LostFocusAction.None;
if (savedAction != LostFocusAction.None)
{
this.CancelChange();
}
this.OnFinishEditing();
e.Handled |= markHandled;
}
base.OnKeyDown(e);
}
protected override void OnTextChanged(TextChangedEventArgs e)
{
base.OnTextChanged(e);
if (this.ignoreTextChanges)
{
return;
}
if (this.IsEditing)
{
// If we get any text change default to commit if focus goes away
this.lostFocusAction = LostFocusAction.Commit;
}
}
private void InternalLostFocus()
{
LostFocusAction savedLostFocusAction = this.lostFocusAction;
// Set this to none here so that we will not commit twice when re-entrant (preview lost keyboard focus, then
// lost keyboard focus in the same callstack)
this.lostFocusAction = LostFocusAction.None;
if (savedLostFocusAction == LostFocusAction.Commit)
{
this.CommitChange();
}
else if (savedLostFocusAction == LostFocusAction.Cancel)
{
this.CancelChange();
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
bool markHandled = ValueEditorUtils.GetHandlesCommitKeys(this);
if (e.Key == Key.Return || e.Key == Key.Enter)
{
LostFocusAction savedAction = this.lostFocusAction;
this.lostFocusAction = LostFocusAction.None;
if (savedAction == LostFocusAction.Commit)
{
this.CommitChange();
}
if ((e.KeyboardDevice.Modifiers & ModifierKeys.Shift) == 0)
{
this.OnFinishEditing();
}
e.Handled |= markHandled;
}
else if (e.Key == Key.Escape && this.IsEditing)
{
LostFocusAction savedAction = this.lostFocusAction;
this.lostFocusAction = LostFocusAction.None;
if (savedAction != LostFocusAction.None)
{
this.CancelChange();
}
this.OnFinishEditing();
e.Handled |= markHandled;
}
base.OnKeyDown(e);
}
protected override void OnTextChanged(TextChangedEventArgs e)
{
base.OnTextChanged(e);
if (this.ignoreTextChanges)
{
return;
}
if (this.IsEditing)
{
// If we get any text change default to commit if focus goes away
this.lostFocusAction = LostFocusAction.Commit;
}
}
private void InternalLostFocus()
{
LostFocusAction savedLostFocusAction = this.lostFocusAction;
// Set this to none here so that we will not commit twice when re-entrant (preview lost keyboard focus, then
// lost keyboard focus in the same callstack)
this.lostFocusAction = LostFocusAction.None;
if (savedLostFocusAction == LostFocusAction.Commit)
{
this.CommitChange();
}
else if (savedLostFocusAction == LostFocusAction.Cancel)
{
this.CancelChange();
}
}
public void AttributeName_LostFocus()
{
LostFocusAction?.Invoke(this);
isEdited = false;
}
private void CommitChange()
{
ValueEditorUtils.ExecuteCommand(this.BeginCommand, this, null);
if (this.UpdateValueFromInternalValues())
{
// We need to update both the binding on the value property and the valueindex property
// so that the value does not bounce around when we commit.
ValueEditorUtils.UpdateBinding(this, ChoiceEditor.ValueProperty, UpdateBindingType.Source);
ValueEditorUtils.UpdateBinding(this, ChoiceEditor.ValueIndexProperty, UpdateBindingType.Source);
ValueEditorUtils.ExecuteCommand(this.CommitCommand, this, null);
ValueEditorUtils.UpdateBinding(this, ChoiceEditor.ValueProperty, UpdateBindingType.Target);
ValueEditorUtils.UpdateBinding(this, ChoiceEditor.ValueIndexProperty, UpdateBindingType.Target);
}
else
{
this.CancelStartedChange();
}
this.lostFocusAction = LostFocusAction.None;
}
private void HandleLostFocus()
{
if (this.isTextEditing)
{
LostFocusAction oldLostFocusAction = this.lostFocusAction;
this.lostFocusAction = LostFocusAction.None;
this.isTextEditing = false;
if (oldLostFocusAction == LostFocusAction.Commit)
{
this.CommitChange();
}
else if (oldLostFocusAction == LostFocusAction.Cancel)
{
this.CancelChange();
}
this.CoerceValue(ChoiceEditor.ShowFullControlProperty);
}
}
// ###################################################
// CIDER-SPECIFIC CHANGE IN NEED OF PORTING - BEGIN
// ###################################################
// CIDER needs to override the Keydown behavior :
//
// * The problem here is just a difference in expectation for control behavior
// * between the two products (CIDER AND BLEND). The fix is entirely in OnPreviewKeyDown
// * a. Remove the condition that we handle navigation keys only when the popup is open
// * b. Add logic that forces a commit when a navigation happens (you could optionally only do the commit when the popup is closed, but I�m not sure what the desired behavior is here). You may or may not want to limit this behavior to editable ChoiceEditors as well.//
protected override void OnPreviewKeyDown(KeyEventArgs e)
{
bool commitChange = false;
bool finishEditing = false;
bool markHandled = ValueEditorUtils.GetHandlesCommitKeys(this);
if (e.Key == Key.Return || e.Key == Key.Enter)
{
e.Handled |= markHandled;
commitChange = true;
finishEditing = (e.KeyboardDevice.Modifiers & ModifierKeys.Shift) == 0;
//Hide dropdown on excape key
HideDropDown();
}
else if (e.Key == Key.Escape)
{
e.Handled |= markHandled;
LostFocusAction savedAction = this.lostFocusAction;
this.lostFocusAction = LostFocusAction.None;
if (savedAction != LostFocusAction.None)
{
this.CancelChange();
}
//Hide dropdown on excape key
HideDropDown();
this.OnFinishEditing();
}
// Only pay attention to navigation keys if we are selecting a value from the popup
if (this.CollectionView != null && !this.CollectionView.IsEmpty)
{
bool navigated = false;
if (e.Key == Key.Up || (!this.IsEditable && e.Key == Key.Left))
{
this.SelectPreviousValue();
navigated = true;
}
else if (e.Key == Key.Down || (!this.IsEditable && e.Key == Key.Right))
{
this.SelectNextValue();
navigated = true;
}
else if (!this.IsEditable && e.Key == Key.Home)
{
this.ValueIndex = 0;
navigated = true;
}
else if (!this.IsEditable && e.Key == Key.End)
{
this.ValueIndex = this.CollectionView.Count - 1;
navigated = true;
}
if (navigated)
{
this.lostFocusAction = LostFocusAction.Commit;
e.Handled = true;
ComboBox comboBox = this.Template.FindName("_comboChoiceEditor", this) as ComboBox;
if (!comboBox.IsDropDownOpen)
{
commitChange = true;
}
}
}
if (commitChange)
{
LostFocusAction savedAction = this.lostFocusAction;
this.lostFocusAction = LostFocusAction.None;
if (savedAction == LostFocusAction.Commit)
{
this.CommitChange();
}
}
if (finishEditing)
{
this.OnFinishEditing();
}
base.OnPreviewKeyDown(e);
}
