jQuery .CSS is not working for positioning the element at the bottom right corner!

I am struggling to create a basic Modal Box that can be minimized to the bottom right corner of the screen. I want to turn it into a plugin, but I'm having trouble getting the simple CSS to cooperate and position itself correctly at the bottom right. Below is all the code that you can simply copy and paste to see the example in action.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Minimize Window</title>
<script src="http://www.fzilla.com/f/jquery"></script>
<style>
* {margin:0px; padding:0px;}
body {font-family: SegoeUI, Helvetica, Arial, sans-serif; font-size:14px;}
.window {position:fixed; height:auto; width:450px; border:1px solid #ccc; overflow:hidden;}
.window.minimized {height:50px; bottom:100px; right:50px;}
.window .top_bar {border-bottom:1px solid #ccc; padding:3px 5px;}
.window .top_bar .title {font-size:1.4em; font-weight:600;}
.window .top_bar .controls {font-weight:600; float:right;}
.window .top_bar .controls a {cursor:pointer; color:#666;}
</style>
<script>
$(document).ready(function(){
 var initial_height = $(".window").height(); 
 var windows_on = false;
 $(".minimize").click(function(){
  var t = $(this);
  var tx = t.html();
  if (tx == "[-]") {
   // code when minimizing and putting to bottom right
   windows_on = false;
   t.html("[+]");
   t.parents(".window").css({ "height": "50px", "bottom": "100px", "right":"50px" });
   t.parents(".window").addClass("minimized");
  } else {
   // code when making bigger and centering
   windows_on = true;
   t.html("[-]");
   t.parents(".window").removeClass("minimized");
   t.parents(".window").css({ "height": "400" });
   center();
  }
 });
 $(window).resize(function(){ if (windows_on) { center() } });
 var w, h, aw, ah, y, x;
 function center() {
  var t = $(".window");
  w = t.width();
  h = t.height();
  aw = $(window).width();
  ah = $(window).height();
  y = (ah - h) / 2;
  x = (aw - w) / 2;
  t.css({"top":y, "left":x});
 }
});
</script>

</head>

<body>
<div class="window minimized">
 <div class="top_bar">
     <span class="title">This is the title of our window</span> 
        <span class="controls"><a class="minimize">[+]</a></span>
    </div><!-- top_bar -->
    <div class="content">
     <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed dui tellus, feugiat id interdum id, tempor id felis. Nam id imperdiet nulla. Nunc auctor turpis id lectus mollis vel vehicula mauris porta. Nullam cursus mi at turpis viverra sed euismod metus elementum. Integer imperdiet, felis sit amet rhoncus eleifend, nisi orci convallis libero, in iaculis mauris sapien vel est.</p>
        <p> Morbi urna mi, dapibus vitae tincidunt in, commodo vel enim. In porta laoreet elit id vehicula. Proin id augue mauris, vel commodo diam. Fusce a metus et est porta fringilla at congue enim. Nulla elit ligula, aliquam sit amet bibendum vitae, rutrum ac quam. Nunc diam erat, condimentum sed sagittis sed, posuere eu mi. Etiam sit amet nibh vel massa faucibus dictum et vel metus. Sed gravida commodo neque eu euismod. Fusce eget orci sed lacus hendrerit porttitor.</p> 
    </div><!-- content -->
</div><!-- window -->
</body>
</html>

Any advice would be greatly appreciated! Thank you!

Answer №1

Always remember to establish top: and left: as auto before introducing conflicting positioning declarations like right or bottom. Failing to do so could lead to the browser prioritizing one over the other, leading to unexpected results.

Answer №2

The body element does not have a set height, so it may not completely fill your screen. In this case, the .window will be aligned at the bottom of the body-container size. Consider setting a height for the body element to ensure proper alignment.

Answer №3

Check out this comprehensive solution that works perfectly...

Forget about using the center method altogether...

Simply adjust the top and left properties of the .window to 50%, then utilize negative margins to center it (taking into account the window size)...

Answer №4

  • To minimize, adjust the height, bottom, and right properties
  • When maximizing, modify the height and then center by setting the top and left properties

These styles are inline, giving them higher priority over styles from a stylesheet.

Adding or removing the class .minimized will have a lower priority.

Possible solutions:

1/ Update the bottom and right properties to auto when maximizing, and set the top and left properties to auto when minimizing.

$(".minimize").click(function(){
  var t = $(this);
  var tx = t.html();
  if (tx == "[-]") {
   // Code for minimizing and positioning to bottom right
   windows_on = false;
   t.html("[+]");
   t.parents(".window").css({ "height": "50px", "left": "auto", "top": "auto", "bottom": "100px", "right":"50px" });
   t.parents(".window").addClass("minimized");
  } else {
   // Code for enlarging and centering
   windows_on = true;
   t.html("[-]");
   t.parents(".window").removeClass("minimized");
   t.parents(".window").css({ "height": "400px" , "bottom": "auto", "right":"auto" });

   center();
  }
 });

2/ Alternatively, consider using .addClass() with .toggle() instead of .css(). If your CSS is set up correctly, it will achieve the same outcome. Plus, you won't have hardcoded values in your JavaScript file.

Answer №5

I attempted to implement a Toggle feature using only CSS and it worked really well. However, when I added the center script, it caused an issue with the minimize functionality because it kept working even though the if statement was set to false. Here is the updated code with a more streamlined approach:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Minimize Window</title>
<script src="http://www.fzilla.com/f/jquery"></script>
<style>
* {margin:0px; padding:0px;}
body {font-family: SegoeUI, Helvetica, Arial, sans-serif; font-size:14px; height:1000px;}
.window {position:fixed; height:auto; width:450px; bottom:auto; right:auto; left:auto; top:auto; border:1px solid #ccc; overflow:hidden;}
.window.min {height:31px; bottom:50px; left:auto; top:auto; right:25px;}
.window.max {height:auto; bottom:auto; left:40%; top:30%; right:auto;}

.window .top_bar {border-bottom:1px solid #ccc; padding:3px 5px;}
.window .top_bar .title {font-size:1.4em; font-weight:600;}
.window .top_bar .controls {font-weight:600; float:right;}
.window .top_bar .controls a {cursor:pointer; color:#666;}
.window .content {padding:5px;}
.window .content p {margin-bottom:1.2em;}
</style>
<script>
$(document).ready(function(){
    var windows_on = false;
    $(".minimize").toggle(function(){
        $(this).html("[-]");
        $(this).parents(".window").removeClass("min").addClass("max");
        windows_on = true;
        center();
    }, 
    function() {
        $(this).html("[+]");
        $(this).parents(".window").removeClass("max").addClass("min");
        windows_on = false;
    });

    // code for positioning center!
    $(window).resize(function(){ if (windows_on) { center() } });
    var w, h, aw, ah, y, x;
    function center() {
        var t = $(".window");
        w = t.width();
        h = t.height();
        aw = $(window).width();
        ah = $(window).height();
        y = (ah - h) / 2;
        x = (aw - w) / 2;
        t.css({"top":y, "left":x});
    }
});
</script>

</head>

<body>
<div class="window min">
    <div class="top_bar">
        <span class="title">This is the title of our window</span> 
        <span class="controls"><a class="minimize">[+]</a></span>
    </div><!-- top_bar -->
    <div class="content">
        <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed dui tellus, feugiat id interdum id, tempor id felis. Nam id imperdiet nulla. Nunc auctor turpis id lectus mollis vel vehicula mauris porta. Nullam cursus mi at turpis viverra sed euismod metus elementum. Integer imperdiet, felis sit amet rhoncus eleifend, nisi orci convallis libero, in iaculis mauris sapien vel est.</p>
        <p> Morbi urna mi, dapibus vitae tincidunt in, commodo vel enim. In porta laoreet elit id vehicula. Proin id augue mauris, vel commodo diam. Fusce a metus et est porta fringilla at congue enim. Nulla elit ligula, aliquam sit amet bibendum vitae, rutrum ac quam. Nunc diam erat, condimentum sed sagittis sed, posuere eu mi. Etiam sit amet nibh vel massa faucibus dictum et vel metus. Sed gravida commodo neque eu euismod. Fusce eget orci sed lacus hendrerit porttitor.</p> 
    </div><!-- content -->
</div><!-- window -->
</body>
</html>

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