Ensuring the "X" Button of a jQueryUI Dialog Remains Visible on the Screen

Question

Ensuring the "X" Button of a jQueryUI Dialog Remains Visible on the Screen

Take a look at this CodePen example: https://codepen.io/ChrisVomRhein/pen/yzBwaZ

Upon clicking the button, a dialog containing a large amount of text opens. The following code snippet is responsible for positioning the dialog relative to the button:

$( "#dialog" ).dialog("option", "position", { 
    my: "right top", 
    at: "right top", 
    of: $(this) 
});

This functionality works smoothly for the three buttons located at the top. jQuery ensures that the dialog remains within the visible screen area.

https://i.sstatic.net/RqLQe.jpg

Even when interacting with the top left button, jQuery intelligently adjusts the dialog position to keep it on screen.

https://i.sstatic.net/3B4zc.jpg

However, an issue arises when clicking on one of the bottom-positioned buttons. In this case, jQuery shifts the dialog upward, making it difficult to access the X-button for closing the dialog. In addition, there is no scrollbar displayed.

https://i.sstatic.net/B9Gqo.jpg

Is there a way to instruct jQuery UI to ensure that the X-button always remains within the accessible area of the browser window? Or could there be a fundamental aspect that I am overlooking?

javascript jquery css jquery-ui

Answer 1

Answer №1

If you want to ensure that the dialog box remains smaller than the window size, you can adjust its height using jQuery. Here's an example of how you can achieve this:

$( "#dialog" ).dialog({ autoOpen: false, height: $(window).height()* 0.9 });

In the above code, the height is set based on the window height, but you can modify it to fit within a specific container or any other element as needed. Multiplying the height by 0.9 makes the dialog slightly smaller than the page.

To enable a scroll bar when the content exceeds the dialog size, use the CSS property overflow:auto.

You can view a demonstration of this concept on CodePen.

Edit

After understanding the issue, I made some changes to the code. You can view the updated version on CodePen. In this solution, the dialog size is adjusted dynamically based on the available space above and below the button position:

$(".opener").click(function() {
  //get the button position
  var pos = $(this).position();
  //calculate maximum available height
  var h = Math.max($(window).height()* 0.9 - pos.top, pos.top * 0.9  );
  $( "#dialog" ).dialog({
      position: { 
          my: "right top", 
          at: "left bottom", 
          of: $(this) 
       },
       autoOpen: false, 
       height: h
  });
  $( "#dialog" ).dialog("open");
});

I hope this explanation helps!

Answer 2

If you want to ensure that the dialog box remains smaller than the window size, you can adjust its height using jQuery. Here's an example of how you can achieve this:

$( "#dialog" ).dialog({ autoOpen: false, height: $(window).height()* 0.9 });

In the above code, the height is set based on the window height, but you can modify it to fit within a specific container or any other element as needed. Multiplying the height by 0.9 makes the dialog slightly smaller than the page.

To enable a scroll bar when the content exceeds the dialog size, use the CSS property overflow:auto.

You can view a demonstration of this concept on CodePen.

Edit

After understanding the issue, I made some changes to the code. You can view the updated version on CodePen. In this solution, the dialog size is adjusted dynamically based on the available space above and below the button position:

$(".opener").click(function() {
  //get the button position
  var pos = $(this).position();
  //calculate maximum available height
  var h = Math.max($(window).height()* 0.9 - pos.top, pos.top * 0.9  );
  $( "#dialog" ).dialog({
      position: { 
          my: "right top", 
          at: "left bottom", 
          of: $(this) 
       },
       autoOpen: false, 
       height: h
  });
  $( "#dialog" ).dialog("open");
});

I hope this explanation helps!

Ensuring the "X" Button of a jQueryUI Dialog Remains Visible on the Screen

Answer №1

Edit

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