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Position: Use absolute positioning when getting scrollbar width to avoid reflows of user content. Fixes #9291 - Position - $.position.scrollbarWidth detection causes layout issues.

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This commit is contained in:
Scott González 2013-05-16 06:26:03 -04:00
parent ce73a2688d
commit 1d3b8ff78e
2 changed files with 47 additions and 105 deletions
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150
demos/position/default.html
View File

@ -12,126 +12,68 @@
<script src="../../ui/jquery.ui.position.js"></script>
<link rel="stylesheet" href="../demos.css">
<style>
#parent {
width: 60%;
height: 40px;
margin: 10px auto;
padding: 5px;
border: 1px solid #777;
background-color: #fbca93;
text-align: center;
body {
margin: 0;
padding: 0;
}
.positionable {
position: absolute;
display: block;
right: 0;
bottom: 0;
background-color: #bcd5e6;
text-align: center;
body > div[style*='display'] {
/* Workaround */
/* position: absolute; */
}
#positionable1 {
width: 75px;
height: 75px;
.blue {
background: blue;
float: left;
width: 100px;
}
#positionable2 {
width: 120px;
height: 40px;
.red {
background: red;
float: left;
overflow-y: hidden;
}
select, input {
margin-left: 15px;
.content {
width: 2000px;
height: 400px;
border: 2px solid white;
}
#uiPosition {
width: 100px;
height: 100px;
background: #ccc;
}
</style>
<script>
$(function() {
function position() {
$( ".positionable" ).position({
of: $( "#parent" ),
my: $( "#my_horizontal" ).val() + " " + $( "#my_vertical" ).val(),
at: $( "#at_horizontal" ).val() + " " + $( "#at_vertical" ).val(),
collision: $( "#collision_horizontal" ).val() + " " + $( "#collision_vertical" ).val()
});
}
$( ".positionable" ).css( "opacity", 0.5 );
$( "select, input" ).bind( "click keyup change", position );
$( "#parent" ).draggable({
drag: position
$( "#redBlock" ).css({
width: $( window ).width() - $( "#blueBlock" ).width()
});
$( ".block" ).css({
height: $( window ).height()
});
position();
$( "button" ).on('click', function (e) {
$( "#uiPosition" )
.position({
my: "left top",
at: "left bottom",
of: e.target,
within: $( "#redBlock" ),
collision: "flip"
});
});
});
</script>
</head>
<body>
<div id="parent">
<p>
This is the position parent element.
</p>
</div>
<div class="positionable" id="positionable1">
<p>
to position
</p>
</div>
<div class="positionable" id="positionable2">
<p>
to position 2
</p>
</div>
<div style="padding: 20px; margin-top: 75px;">
position...
<div style="padding-bottom: 20px;">
<b>my:</b>
<select id="my_horizontal">
<option value="left">left</option>
<option value="center">center</option>
<option value="right">right</option>
</select>
<select id="my_vertical">
<option value="top">top</option>
<option value="center">center</option>
<option value="bottom">bottom</option>
</select>
<div class="block blue" id="blueBlock"></div>
<div class="block red" id="redBlock">
<div class="content">
<button>Position</button>
</div>
</div>
<div style="padding-bottom: 20px;">
<b>at:</b>
<select id="at_horizontal">
<option value="left">left</option>
<option value="center">center</option>
<option value="right">right</option>
</select>
<select id="at_vertical">
<option value="top">top</option>
<option value="center">center</option>
<option value="bottom">bottom</option>
</select>
</div>
<div style="padding-bottom: 20px;">
<b>collision:</b>
<select id="collision_horizontal">
<option value="flip">flip</option>
<option value="fit">fit</option>
<option value="flipfit">flipfit</option>
<option value="none">none</option>
</select>
<select id="collision_vertical">
<option value="flip">flip</option>
<option value="fit">fit</option>
<option value="flipfit">flipfit</option>
<option value="none">none</option>
</select>
</div>
</div>
<div class="demo-description">
<p>Use the form controls to configure the positioning, or drag the positioned element to modify its offset.
<br>Drag around the parent element to see collision detection in action.</p>
</div>
<div id="uiPosition"></div>
</body>
</html>

2
ui/jquery.ui.position.js vendored
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@ -70,7 +70,7 @@ $.position = {
return cachedScrollbarWidth;
}
var w1, w2,
div = $( "<div style='display:block;width:50px;height:50px;overflow:hidden;'><div style='height:100px;width:auto;'></div></div>" ),
div = $( "<div style='display:block;position:absolute;width:50px;height:50px;overflow:hidden;'><div style='height:100px;width:auto;'></div></div>" ),
innerDiv = div.children()[0];
$( "body" ).append( div );