I'm using JFX 11 on Fedora 33 (GNU/Linux) with the Xorg GUI server (v 1.20.11), creating a dialog thus (kotlin):
fun YNdialog (txt : String) : Boolean {
val dlog = Dialog<ButtonType>()
dlog.dialogPane.apply {
contentText = txt
buttonTypes.apply {
add(ButtonType.OK)
add(ButtonType.CANCEL)
}
minWidth = 200.0
minHeight = 100.0
}
dlog.initOwner(theStage.scene.window)
val r = dlog.showAndWait()
return r.isPresent && r.get() == ButtonType.OK
}
This is called from an EventHandler<ActionEvent> associated with a Button:
if (YNdialog("hello world")) ...
There does seem to be a window created. If I remove the initOwner() call, an icon for it appears in the desktop taskbar (KDE), allowing me to do things like move it, but "maximize" and "resize" are greyed out, and the mouse cursor appears to be dragging nothing, ie., it has no width or height.
With the initOwner() it does much the same thing, except it gets no taskbar icon. Also, there is a visible vertical line one or two pixels thick where it should be (centered over the main window). What's more interesting is a second close button appears in the titlebar of the main window:
This is not part of the javafx interface, but I've never seen the window manager (?) do this before.
Occasionally (maybe one in five or ten times) the dialog does appear, and curiously,
the close button there is offset with space for a second one:
When this happens and I can dismiss the dialog window, the second close button on the main window disappears.
Using Alert
Replacing that function, etc. with:
Alert(Alert.AlertType.CONFIRMATION, "hello world").showAndWait()
.filter { res -> res == ButtonType.OK }
.ifPresent { _ -> log.msg("ok!") }
The result is identical to the YNdialog with initOwner().
Am I missing something here? I got all of this pretty much straight from the docs. I have done custom popup windows (instantiated via FXMLLoader) and have not had any problem with that. Does this experience imply the dialog hierarchy is glitchy in this context and I should roll my own?
Related
I have a problem with ModalBottomSheet and it's on my work computer so I can't record it to you right now. So basically, after I give focus to one of my TextFields, my keyboard comes up and pushes all the content upwards so I can see the TextField that I'm writing to. When I'm hiding my keyboard I can see that my ModalBottomSheet hides too, but I never set it to come up.
So if you are familiar with this bug, please let me know your solutions.
My coworker, so he inserted a boolean that checks if keyboard is up or not and if it is, dont put ap modal bottom sheet.
You can use this method until this problem is fixed with an additional update.
You can use LaunchedEffect for this. Here is an example for you.
The important thing here is to disable the ModalBottomSheetDialog when the keyboard is opened and re-enable it half a second after the keyboard is closed.
You can trigger the required function by assigning a value to this variable when the keyboard is turned on, and then changing and checking this value when the keyboard is closed.
/*Change this value to "keyboard_on" when the keyboard is turned on and "keyboard_off" when the keyboard is closed again. You can give different names for different usage areas. That's why we're using a string, not a Boolean.*/
var taskCodeValue = remember { mutableStateOf("keyboard_off") }
var sheetOpener by remember { mutableStateOf(true) }
if (taskCodeValue.value == "keyboard_off"){
LaunchedEffect(taskCodeValue.value == "keyboard_off"){
delay(500)
sheetOpener = true
}
}else {
sheetOpener = false
}
/*
By adding the Scaffold, which includes ModalBottomSheet and other compose
elements, into a box, we enable them to work independently of each other.
*/
Box(modifier = Modifier.fillMaxSize()) {
Scaffold(
content = {}
)
if (sheetOpener){
ModalBottomSheetLayout(
sheetState = sheetState,
sheetContent = {}
) {}
}
}
I have Two Screen A And Screen B
Screen A execute
sharedPrefs.setUserLatLng(CURRENT_LOCATION_LAT_KEY, CURRENT_LOCATION_LNG_KEY, LatLng(location.latitude, location.longitude))
commonViewModel.onLatLngChange(LatLng(location.latitude, location.longitude))
These Two Lines of code in Launch Effect
When a button click in Screen A It navigate to Screen B
Everything works fine.
When I Back press from Screen B.
Screen A execute above mention two lines of code. I want to prevent that execution when back press from Screen B
You can save a flag which will indicate if this side effect was already processed, like this:
var userLatLngUpdated by rememberSaveable { mutableStateOf(false) }
if (!userLatLngUpdated) {
LaunchedEffect(Unit) {
// your code
userLatLngUpdated = true
}
}
I’m not sure if I am referring to this correctly, but when I use the word “UnMaximize”, I’m referring to:
When you click on the green button which is third on the top left of a
Chrome Window, it Maximizes the Window. When I use the word
“UnMaximize” above, I’m referring to the behavior that clicks that
button again so that it is no longer in full screen.
(By the way, what is the correct word for this in MacOS Terminology?)
I enjoy using the Easy Move+Resize App. While it can move Windows around, unfortunately, it has no effect on windows that are Maximized. Fortunately, the code is available on Github.
I’m curious if anyone can point me how to UnMaximize a Window using the Accessibility API
Does anyone what is the UnMaximize equivalent to kAXCloseButtonAttribute
I’m using MacOs 10.12 if that helps.
I’m grateful to #Willeke - Willeke for pointing me in the correct direction.
As mentioned in my question, I was looking at the code of the Easy Move+Resize App on GitHub. The problem with this code/app is that it does not work for Windows that are currently Maximized i.e. it tries to move these Windows, but it cannot, because they are fixed. (Note: This only has use and is relevant in a multi-monitor setup.) This app works correctly for Windows that are not Maximized.
Here, I am trying to add code that would UnMaximize a window in order to move it, and then Maximize it again after it has been moved. Obviously, the code below is in the context of this app, but I’m sure would be useful to users in other contexts.
I first added a wasMaximized property to EMRMoveResize.h
//EMRMoveResize.h
#property bool wasMaximized;
Next, I moved to EMRAppDelegate.m where the actual Event Callback code is. It should be noted that we are only concerned with moving i.e. only concerned with the Left Mouse Button. (This app uses the Right Mouse Button for resizing, which is not relavent when the Window has been maximized.) So, we are only concerned with kCGEventLeftMouseDown, kCGEventLeftMouseDragged and finally with kCGEventLeftMouseUp. In pseudo code, I have done something like:
If (LeftMouseDown) {
Find out if Window is Maximized
If (Window is Maximized) {
set the wasMaximized property
Click FullScreen Button to UnMaximize the Window in Order to Move it
}
The Window is now UnMaximized would now move as other windows in the LeftMouseDragged event, which I have not made any changes to. Finally,
If(LeftMouseUp) {
If(wasMaximized value was set) {
Click FullScreen Button again to Maximize the Window (Since it started out as Maximized)
Reset the wasMaximized property
}
}
Now for the snippets of code changes to EMRAppDelegate.m
if (type == kCGEventLeftMouseDown
|| type == kCGEventRightMouseDown) {
//..
//Skipped Unchanged Code
//..
//Find out if Window is Maximized
CFTypeRef TypeRef = nil;
if (AXUIElementCopyAttributeValue((AXUIElementRef)_clickedWindow, CFSTR("AXFullScreen"), &TypeRef)) {
if(Debug) NSLog(#"Could not get wasMaximized Value");
} else {
[moveResize setWasMaximized: CFBooleanGetValue(TypeRef)];
if(Debug) NSLog(CFBooleanGetValue(TypeRef) ? #"Updated Maximized to True" : #"Updated Maximized to False");
}
//Click FullScreen Button to UnMaximize the Window in Order to Move it
if([moveResize wasMaximized]) {
AXUIElementRef buttonRef = nil;
AXUIElementCopyAttributeValue(_clickedWindow, kAXFullScreenButtonAttribute, (CFTypeRef*)&buttonRef);
if(Debug) NSLog(#"buttonRef: %p", buttonRef);
AXUIElementPerformAction(buttonRef, kAXPressAction);
CFRelease(buttonRef);
}
//..
//Skipped Unchanged Code
//..
}
if (type == kCGEventLeftMouseUp
|| type == kCGEventRightMouseUp) {
//..
//Skipped Unchanged Code
//..
//Click FullScreen Button again to Maximize the Window (Since it started out as Maximized)
AXUIElementRef _clickedWindow = [moveResize window];
if([moveResize wasMaximized]) {
AXUIElementRef buttonRef = nil;
AXUIElementCopyAttributeValue(_clickedWindow, kAXFullScreenButtonAttribute, (CFTypeRef*)&buttonRef);
if(Debug) NSLog(#"buttonRef: %p", buttonRef);
AXUIElementPerformAction(buttonRef, kAXPressAction);
CFRelease(buttonRef);
[moveResize setWasMaximized: false];
}
//..
//Skipped Unchanged Code
//..
}
This worked for me. But I'm not an expert in Objective C or MacOS, so if you feel something can be improved, feel free to edit this post.
I try to implement a custom ContextMenu in a LongListSelector.
I'm not using the ContextMenu from Microsoft.Phone.Controls.Toolkit, it's basically the same as in the Rowi App:
(source: hiddenpineapple.com)
Approach 1
My list item toggles a VisualState on hold and an overlay is shown with controls in it.
The problem
I can't find a way to go back to the default state when the user clicks outside of the list item (as in the default ContextMenu).
Approach 2
I've implemented a custom template for the toolkit ContextMenu which looks exactly the same. I had to move its margin top to -itemHeight, as by default it is below the item.
The problem
The problem with this solution is, that it automatically closes itself when opening and I couldn't figure out how to avoid this.
Another problem was that it didn't work well with TiltEffect.IsTiltEnabled from the Toolkit (visual problems).
I need your help
Any suggestions on how to get this working?
Answer
Thanks to Cheese, now I know how to properly close the menu when the user clicks outside.
His suggestion was to get the coordinates of a Tap event on the current page, and check if it's inside the menu. When not, close the menu.
So I added a Tap listener to the page when the menu opens, and removed it when the menu closes. From the page listener I got the event coordinates and could check if it's inside the control which holds the menu (same size and position). I received the position of the control with Point leftUpperPoint = control.TransformToVisual(page).Transform(new Point(0, 0)) and the rightLowerPoint by adding the ActualWidth and ActualHeight.
But then I realized:
Why should I even calculate if the tap is inside the menu? I always want to close the menu when the user taps anywhere on the screen. If it's outside, yes. If it's on a menu button, yes.
Another modification I made was to listen for MouseLeftButtonDown instead of Tap as it also triggers when the user swipes.
So I removed this code and came up with the following:
private void ToggleMenu(object sender, System.Windows.Input.GestureEventArgs e)
{
PhoneApplicationFrame frame = ((PhoneApplicationFrame)Application.Current.RootVisual);
VisualState state = this.States.CurrentState;
if (state == null || state.Name == "DefaultState")
{
frame.MouseLeftButtonDown += MouseDownDelegate;
this.State = "MenuState";
}
else
{
frame.MouseLeftButtonDown -= MouseDownDelegate;
this.State = "DefaultState";
}
}
private void MouseDownDelegate(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
ToggleMenu(sender, null);
}
This works perfectly!
Thanks to Cheese for the hint.
Something like this by #denniscode http://dotnet.dzone.com/articles/rowi-show-tap-menu
Approach 1 problem
The best solution would be:
Get the menus coordinates, when user makes a tap - you check are tap coordinates on menu or not, if not - dissmiss - simple.
Approach 2 problem
I guess you had some button in a corner and when you tapped on it - nothing happened? And when you dissmissed the Tilt all worked. It seems that tilt works faster than a click, so, tilt changes the button coordinates, and device thiks you have missed/or dragged off
You can use what #ScottIsAFool suggested and maybe create another Dependency Property on your TapMenu control of type UIElement named CloseWhenTappedElement and automatically listen for Tap events inside your control once set. For example
<Grid x:Name="TapArea"/>
<TapMenu CloseWhenTappedElement="{Binding ElementName=TapArea"}/>
I need to show a virtual keyboard when the user selects an input text field in a webpage. This code runs on an set top box.
I am extending the QWebView, which is creating a new keyboard widget as a child.
WebView::WebView(QWidget* parent = 0): QWebView(parent)
{
WebPage *page = new WebPage(this);
this->m_keyboard = new widgetKeyBoard(this, Qt::Window|Qt::CustomizeWindowHint);
this->m_keyboard->createKeyboard();
this->m_keyboard->hide();
connect(this, SIGNAL(launchVirtualKB(WebView *) ), SLOT(launchKeyboard(WebView *)));
}
The widgetKeyBoard is made up of QGridLayout with many children QKeyPushButton.
When I do a show of keyboard, I see the whole keyboard drawn briefly and then overwritten 30% of the keyboard from the below web page (overwritten near the input field). I tried to have my own repaint for webview and mainwindow, but still see that someone else is overwriting.
What could be causing such an issue. I am using QT4.8.