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Is it possible to detect a scrollbar release event in GWT?


Is it possible to detect a scrollbar release event in GWT?

By : Scott
Date : November 21 2020, 07:01 PM
should help you out You might be able to do it with a ScrollPanel and implementing your own ScrollHandler. Just use the addScrollHandler() method and you should be able to override whatever functionality you need.
However, I would suggest that you re-think your approach. What you seem to really want is a slider control for time, that kind of looks like a scroll bar. You should check out the Composite class and the Widget Gallery to see if there is some combination of Widgets that would suit what you need more. Failing that, I'd also look at SmartGWT. They have a very extensive library of GUI Widgets available, and you may find something you can use already there.
code :


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How to detect onTouch release event in Android after object is set invisible?

How to detect onTouch release event in Android after object is set invisible?


By : Jithin Thomaz
Date : March 29 2020, 07:55 AM
To fix the issue you can do Here's what I need. , u can try this
code :
  buttonA.setOnTouchListener(new OnTouchListener() {
 @Override
 public boolean onTouch(View v, MotionEvent event) {
    if(event.getAction() == MotionEvent.ACTION_DOWN) {
      YourMethodForButtonBGoesVisible();
      YourMethodForButtonAGoesGone();
    } else if (event.getAction() == MotionEvent.ACTION_UP) {
        YourMethodForButtonAGoesVisible();
        YourMethodForButtonBGoesGone();
    }
    return true;
 }    
});
Detect mousedown/click event on browser's scrollbar

Detect mousedown/click event on browser's scrollbar


By : ayesha afzaal
Date : March 29 2020, 07:55 AM
seems to work fine I suggest capturing the mousedown event and testing for the coordinates. If the coordinates are greater than or equal to the visible document body width, they clicked in the scrollbar area!
code :
$(document).ready(function() {
  $(document).mousedown(function(event) {
    if(event.target === $('html')[0] && event.clientX >= document.documentElement.offsetWidth)
      alert('vertical scrollbar clicked');
  })
})
How to detect right mouse button release event in javascript?

How to detect right mouse button release event in javascript?


By : Jamie Saliga
Date : March 29 2020, 07:55 AM
this will help Looks like you need a combination of disabling the contextmenu (if you can, some browsers don't allow it) and mouseup. Also, it's useful to make whatever the user is clicking not user-selectable (more here) so that repeated clicks don't select text.
This works for me on Chrome, see comments:
code :
// Avoid the context menu popup
window.addEventListener("contextmenu", function(e) {
  e.preventDefault();
}, false);

// Listen for mouseup
window.addEventListener("mouseup", function(e) {
  switch (e.button) {
    case 0: // Primary button ("left")
      speedUp();
      break;
    case 2: // Secondary button ("right")
      speedDown();
      break;
  }
}, false);

// Current speed
var speed = 0;
showSpeed();

// Speed functions
function speedUp() {
  ++speed;
  showSpeed();
}

function speedDown() {
  --speed;
  showSpeed();
}

function showSpeed() {
  document.getElementById("speed").innerHTML = speed;
}
/* From https://stackoverflow.com/questions/826782/how-to-disable-text-selection-highlighting-using-css */
body {
  -webkit-touch-callout: none; /* iOS Safari */
    -webkit-user-select: none; /* Chrome/Safari/Opera */
     -khtml-user-select: none; /* Konqueror */
       -moz-user-select: none; /* Firefox */
        -ms-user-select: none; /* Internet Explorer/Edge */
            user-select: none; /* Non-prefixed version, currently
                                  not supported by any browser */
}
<div>Current speed: <span id="speed">0</span>
</div>
<div>Left-click to speed up</div>
<div>Right-click to slow down</div>
// Avoid the context menu popup
window.addEventListener("contextmenu", function(e) {
  e.preventDefault();
}, false);

// Listen for mousedown
window.addEventListener("mousedown", function(e) {
  handle(e, true);
}, false);

// Listen for mouseup
window.addEventListener("mouseup", function(e) {
  handle(e, false);
}, false);

// Our main handler
function handle(e, down) {
  var id;
  switch (e.button) {
    case 0: // Primary button ("left")
      id = "primary-status";
      break;
    case 2: // Secondary button ("right")
      id = "secondary-status";
      break;
  }
  if (id) {
    document.getElementById(id).innerHTML = down ? "Down" : "Up";
  }
}
/* From https://stackoverflow.com/questions/826782/how-to-disable-text-selection-highlighting-using-css */
body {
  -webkit-touch-callout: none; /* iOS Safari */
    -webkit-user-select: none; /* Chrome/Safari/Opera */
     -khtml-user-select: none; /* Konqueror */
       -moz-user-select: none; /* Firefox */
        -ms-user-select: none; /* Internet Explorer/Edge */
            user-select: none; /* Non-prefixed version, currently
                                  not supported by any browser */
}
<div>
  Primary ("left") mouse button:
  <span id="primary-status">Unknown</span>
</div>
<div>
  Secondary ("right") mouse button:
  <span id="secondary-status">Unknown</span>
</div>
Detect which scrollbar was moved with the wheel event

Detect which scrollbar was moved with the wheel event


By : dmbreaker
Date : March 29 2020, 07:55 AM
I wish this help you The solution below is written in jQuery, but it can be done in plain Javascript equivalent code as well:
code :
$(document).on('DOMMouseScroll mousewheel', context, function(ev) {
    //Do some stuff
    ev.stopPropagation(); //Prevents ancestors of context of handling the event
});
SwipeView detect on release event QML - QT

SwipeView detect on release event QML - QT


By : Akash Jose Kakkaniyi
Date : March 29 2020, 07:55 AM
I hope this helps you . In the very beginning of my QML learning I had a similar problem: I wanted to detect mouse events without interfering with the rest of the application.
It might not be the right solution, maybe it is very bad style or hacky but it works, and might help you.
code :
bool MouseEventListener::childMouseEventFilter(QQuickItem *item, QEvent *event)
{
    emit mouseEventHappend();
    event->ignore(); // Don't know if that is right. I think I should not have it here.
    return QQuickItem::childMouseEventFilter(item, event);
}
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