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Position: Expose target and element dimensions to allow further customization, like calculating the angle between the two elements

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This commit is contained in:
Jörn Zaefferer 2012-04-13 16:05:29 +02:00
parent cb67eb535c
commit a5fc9eb7db
3 changed files with 126 additions and 8 deletions
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4
tests/visual/position/position_feedback.html
View File

@ -13,9 +13,9 @@
<script type="text/javascript">
$(function() {
function using( position, feedback ) {
$(this).offset( position );
$(this).text(feedback.horizontal + " " + feedback.vertical + " " + feedback.important)
$(this)
.offset( position )
.text( feedback.horizontal + " " + feedback.vertical + " " + feedback.important )
.removeClass( "left right top bottom center middle vertical horizontal" )
.addClass( feedback.horizontal )
.addClass( feedback.vertical )

105
tests/visual/position/position_feedback_rotate.html Normal file
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@ -0,0 +1,105 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Position Visual Test: Default</title>
<link rel="stylesheet" href="../visual.css" type="text/css" />
<link rel="stylesheet" href="../../../themes/base/jquery.ui.all.css" type="text/css" title="ui-theme" />
<script type="text/javascript" src="../../../jquery-1.7.2.js"></script>
<script type="text/javascript" src="../../../ui/jquery.ui.core.js"></script>
<script type="text/javascript" src="../../../ui/jquery.ui.widget.js"></script>
<script type="text/javascript" src="../../../ui/jquery.ui.position.js"></script>
<script type="text/javascript" src="../../../ui/jquery.ui.menu.js"></script>
<script type="text/javascript">
$(function() {
function using( position, feedback ) {
var angleRad = Math.atan2( feedback.target.top + feedback.target.height / 2 - feedback.element.top - feedback.element.height / 2, feedback.target.left + feedback.target.width / 2 - feedback.element.left - feedback.element.width / 2 ) * 180 / Math.PI;
var angle = (Math.round( angleRad * 100) / 100 );
$(this)
.offset( position )
.text( feedback.horizontal + " " + feedback.vertical + " " + feedback.important + " " + angle + "°" )
.css({
"-webkit-transform": "rotate(" + angle + "deg)",
"-moz-transform": "rotate(" + angle + "deg)",
"-ms-transform": "rotate(" + angle + "deg)",
"-o-transform": "rotate(" + angle + "deg)",
"transform": "rotate(" + angle + "deg)"
});
}
var target = $("#target").position({
my: "center",
at: "center",
of: window
});
var element = $(".element");
$.each([
"center top-100",
"right+25 top-50",
"right+75 top",
"right+75 center",
"right+75 bottom",
"right+25 bottom+50",
"center bottom+100",
"left-25 bottom+50",
"left-75 bottom",
"left-75 center",
"left-75 top",
"left-25 top-50"
], function(index, direction) {
element.clone().insertAfter(target).position({
my: "center",
at: direction,
of: target,
using: using
})
});
var targetOffset = target.offset();
var oppositeElement = element.clone().width(50).appendTo('body');
var leftElement = element.clone().width(50).height(150).appendTo('body');
var rightElement = element.clone().height(150).width(150).appendTo('body');
element.width(150);
$(document).on( "mousemove", function(event) {
var base = {
my: "left top",
at: "left top",
of: target,
using: using
}
element.position( $.extend({
offset: (event.pageX - targetOffset.left) + " " + (event.pageY - targetOffset.top)
}, base));
oppositeElement.position( $.extend({
offset: (-1 * (event.pageX - targetOffset.left)) + " " + (-1 * (event.pageY - targetOffset.top))
}, base));
leftElement.position( $.extend({
offset: (-0.9 * (event.pageX - targetOffset.left)) + " " + (0.9 * (event.pageY - targetOffset.top))
}, base));
rightElement.position( $.extend({
offset: (0.9 * (event.pageX - targetOffset.left)) + " " + (-0.9 * (event.pageY - targetOffset.top))
}, base));
});
});
</script>
<style>
#target, .element {
position: absolute;
border: 1px solid black;
border-radius: 5px;
width: 75px;
height: 25px;
padding: 5px;
}
#target {
height: 75px;
}
</style>
</head>
<body>
<div id="target">all around me</div>
<div class="element"></div>
</body>
</html>

17
ui/jquery.ui.position.js vendored
View File

@ -241,9 +241,22 @@ $.fn.position = function( options ) {
top = targetOffset.top - props.top,
bottom = (targetOffset.top + targetHeight) - (props.top + elemHeight),
feedback = {
target: {
element: target,
left: targetOffset.left,
top: targetOffset.top,
width: targetWidth,
height: targetHeight
},
element: {
element: elem,
left: props.left,
top: props.top,
width: elemWidth,
height: elemHeight
},
horizontal: right < 0 ? "left" : left > 0 ? "right" : "center",
vertical: bottom < 0 ? "top" : top > 0 ? "bottom" : "middle",
target: target
vertical: bottom < 0 ? "top" : top > 0 ? "bottom" : "middle"
},
max = Math.max,
abs = Math.abs;