jquery/test/unit/offset.js

559 lines
22 KiB
JavaScript

(function() {
if ( !jQuery.fn.offset ) {
return;
}
var supportsScroll, supportsFixedPosition,
forceScroll = jQuery("<div/>").css({ width: 2000, height: 2000 }),
checkSupport = function() {
// Only run once
checkSupport = false;
var checkFixed = jQuery("<div/>").css({ position: "fixed", top: "20px" }).appendTo("#qunit-fixture");
// Must append to body because #qunit-fixture is hidden and elements inside it don't have a scrollTop
forceScroll.appendTo("body");
window.scrollTo( 200, 200 );
supportsScroll = document.documentElement.scrollTop || document.body.scrollTop;
forceScroll.detach();
supportsFixedPosition = checkFixed[0].offsetTop === 20;
checkFixed.remove();
};
module("offset", { setup: function(){
if ( typeof checkSupport === "function" ) {
checkSupport();
}
// Force a scroll value on the main window to ensure incorrect results
// if offset is using the scroll offset of the parent window
forceScroll.appendTo("body");
window.scrollTo( 1, 1 );
forceScroll.detach();
}, teardown: moduleTeardown });
/*
Closure-compiler will roll static methods off of the jQuery object and so they will
not be passed with the jQuery object across the windows. To differentiate this, the
testIframe callbacks use the "$" symbol to refer to the jQuery object passed from
the iframe window and the "jQuery" symbol is used to access any static methods.
*/
test("empty set", function() {
expect(2);
strictEqual( jQuery().offset(), undefined, "offset() returns undefined for empty set (#11962)" );
strictEqual( jQuery().position(), undefined, "position() returns undefined for empty set (#11962)" );
});
test("object without getBoundingClientRect", function() {
expect(2);
// Simulates a browser without gBCR on elements, we just want to return 0,0
var result = jQuery({ ownerDocument: document }).offset();
equal( result.top, 0, "Check top" );
equal( result.left, 0, "Check left" );
});
test("disconnected node", function() {
expect(2);
var result = jQuery( document.createElement("div") ).offset();
equal( result.top, 0, "Check top" );
equal( result.left, 0, "Check left" );
});
testIframe("offset/absolute", "absolute", function($, iframe) {
expect(4);
var doc = iframe.document,
tests;
// get offset
tests = [
{ "id": "#absolute-1", "top": 1, "left": 1 }
];
jQuery.each( tests, function() {
equal( jQuery( this["id"], doc ).offset().top, this["top"], "jQuery('" + this["id"] + "').offset().top" );
equal( jQuery( this["id"], doc ).offset().left, this["left"], "jQuery('" + this["id"] + "').offset().left" );
});
// get position
tests = [
{ "id": "#absolute-1", "top": 0, "left": 0 }
];
jQuery.each( tests, function() {
equal( jQuery( this["id"], doc ).position().top, this["top"], "jQuery('" + this["id"] + "').position().top" );
equal( jQuery( this["id"], doc ).position().left, this["left"], "jQuery('" + this["id"] + "').position().left" );
});
});
testIframe("offset/absolute", "absolute", function( $ ) {
expect(178);
var tests, offset;
// get offset tests
tests = [
{ "id": "#absolute-1", "top": 1, "left": 1 },
{ "id": "#absolute-1-1", "top": 5, "left": 5 },
{ "id": "#absolute-1-1-1", "top": 9, "left": 9 },
{ "id": "#absolute-2", "top": 20, "left": 20 }
];
jQuery.each( tests, function() {
equal( $( this["id"] ).offset().top, this["top"], "jQuery('" + this["id"] + "').offset().top" );
equal( $( this["id"] ).offset().left, this["left"], "jQuery('" + this["id"] + "').offset().left" );
});
// get position
tests = [
{ "id": "#absolute-1", "top": 0, "left": 0 },
{ "id": "#absolute-1-1", "top": 1, "left": 1 },
{ "id": "#absolute-1-1-1", "top": 1, "left": 1 },
{ "id": "#absolute-2", "top": 19, "left": 19 }
];
jQuery.each( tests, function() {
equal( $( this["id"] ).position().top, this["top"], "jQuery('" + this["id"] + "').position().top" );
equal( $( this["id"] ).position().left, this["left"], "jQuery('" + this["id"] + "').position().left" );
});
// test #5781
offset = $( "#positionTest" ).offset({ "top": 10, "left": 10 }).offset();
equal( offset.top, 10, "Setting offset on element with position absolute but 'auto' values." );
equal( offset.left, 10, "Setting offset on element with position absolute but 'auto' values." );
// set offset
tests = [
{ "id": "#absolute-2", "top": 30, "left": 30 },
{ "id": "#absolute-2", "top": 10, "left": 10 },
{ "id": "#absolute-2", "top": -1, "left": -1 },
{ "id": "#absolute-2", "top": 19, "left": 19 },
{ "id": "#absolute-1-1-1", "top": 15, "left": 15 },
{ "id": "#absolute-1-1-1", "top": 5, "left": 5 },
{ "id": "#absolute-1-1-1", "top": -1, "left": -1 },
{ "id": "#absolute-1-1-1", "top": 9, "left": 9 },
{ "id": "#absolute-1-1", "top": 10, "left": 10 },
{ "id": "#absolute-1-1", "top": 0, "left": 0 },
{ "id": "#absolute-1-1", "top": -1, "left": -1 },
{ "id": "#absolute-1-1", "top": 5, "left": 5 },
{ "id": "#absolute-1", "top": 2, "left": 2 },
{ "id": "#absolute-1", "top": 0, "left": 0 },
{ "id": "#absolute-1", "top": -1, "left": -1 },
{ "id": "#absolute-1", "top": 1, "left": 1 }
];
jQuery.each( tests, function() {
$( this["id"] ).offset({ "top": this["top"], "left": this["left"] });
equal( $( this["id"] ).offset().top, this["top"], "jQuery('" + this["id"] + "').offset({ top: " + this["top"] + " })" );
equal( $( this["id"] ).offset().left, this["left"], "jQuery('" + this["id"] + "').offset({ left: " + this["left"] + " })" );
var top = this["top"], left = this["left"];
$( this["id"] ).offset(function(i, val){
equal( val.top, top, "Verify incoming top position." );
equal( val.left, left, "Verify incoming top position." );
return { "top": top + 1, "left": left + 1 };
});
equal( $( this["id"] ).offset().top, this["top"] + 1, "jQuery('" + this["id"] + "').offset({ top: " + (this["top"] + 1) + " })" );
equal( $( this["id"] ).offset().left, this["left"] + 1, "jQuery('" + this["id"] + "').offset({ left: " + (this["left"] + 1) + " })" );
$( this["id"] )
.offset({ "left": this["left"] + 2 })
.offset({ "top": this["top"] + 2 });
equal( $( this["id"] ).offset().top, this["top"] + 2, "Setting one property at a time." );
equal( $( this["id"] ).offset().left, this["left"] + 2, "Setting one property at a time." );
$( this["id"] ).offset({ "top": this["top"], "left": this["left"], "using": function( props ) {
$( this ).css({
"top": props.top + 1,
"left": props.left + 1
});
}});
equal( $( this["id"] ).offset().top, this["top"] + 1, "jQuery('" + this["id"] + "').offset({ top: " + (this["top"] + 1) + ", using: fn })" );
equal( $( this["id"] ).offset().left, this["left"] + 1, "jQuery('" + this["id"] + "').offset({ left: " + (this["left"] + 1) + ", using: fn })" );
});
});
testIframe("offset/relative", "relative", function( $ ) {
expect(60);
var ie, tests;
// IE is collapsing the top margin of 1px; detect and adjust accordingly
ie = $("#relative-1").offset().top === 6;
// get offset
tests = [
{ "id": "#relative-1", "top": ie ? 6 : 7, "left": 7 },
{ "id": "#relative-1-1", "top": ie ? 13 : 15, "left": 15 },
{ "id": "#relative-2", "top": ie ? 141 : 142, "left": 27 }
];
jQuery.each( tests, function() {
equal( $( this["id"] ).offset().top, this["top"], "jQuery('" + this["id"] + "').offset().top" );
equal( $( this["id"] ).offset().left, this["left"], "jQuery('" + this["id"] + "').offset().left" );
});
// get position
tests = [
{ "id": "#relative-1", "top": ie ? 5 : 6, "left": 6 },
{ "id": "#relative-1-1", "top": ie ? 4 : 5, "left": 5 },
{ "id": "#relative-2", "top": ie ? 140 : 141, "left": 26 }
];
jQuery.each( tests, function() {
equal( $( this["id"] ).position().top, this["top"], "jQuery('" + this["id"] + "').position().top" );
equal( $( this["id"] ).position().left, this["left"], "jQuery('" + this["id"] + "').position().left" );
});
// set offset
tests = [
{ "id": "#relative-2", "top": 200, "left": 50 },
{ "id": "#relative-2", "top": 100, "left": 10 },
{ "id": "#relative-2", "top": -5, "left": -5 },
{ "id": "#relative-2", "top": 142, "left": 27 },
{ "id": "#relative-1-1", "top": 100, "left": 100 },
{ "id": "#relative-1-1", "top": 5, "left": 5 },
{ "id": "#relative-1-1", "top": -1, "left": -1 },
{ "id": "#relative-1-1", "top": 15, "left": 15 },
{ "id": "#relative-1", "top": 100, "left": 100 },
{ "id": "#relative-1", "top": 0, "left": 0 },
{ "id": "#relative-1", "top": -1, "left": -1 },
{ "id": "#relative-1", "top": 7, "left": 7 }
];
jQuery.each( tests, function() {
$( this["id"] ).offset({ "top": this["top"], "left": this["left"] });
equal( $( this["id"] ).offset().top, this["top"], "jQuery('" + this["id"] + "').offset({ top: " + this["top"] + " })" );
equal( $( this["id"] ).offset().left, this["left"], "jQuery('" + this["id"] + "').offset({ left: " + this["left"] + " })" );
$( this["id"] ).offset({ "top": this["top"], "left": this["left"], "using": function( props ) {
$( this ).css({
"top": props.top + 1,
"left": props.left + 1
});
}});
equal( $( this["id"] ).offset().top, this["top"] + 1, "jQuery('" + this["id"] + "').offset({ top: " + (this["top"] + 1) + ", using: fn })" );
equal( $( this["id"] ).offset().left, this["left"] + 1, "jQuery('" + this["id"] + "').offset({ left: " + (this["left"] + 1) + ", using: fn })" );
});
});
testIframe("offset/static", "static", function( $ ) {
expect( 80 );
var ie, tests;
// IE is collapsing the top margin of 1px; detect and adjust accordingly
ie = $("#static-1").offset().top === 6;
// get offset
tests = [
{ "id": "#static-1", "top": ie ? 6 : 7, "left": 7 },
{ "id": "#static-1-1", "top": ie ? 13 : 15, "left": 15 },
{ "id": "#static-1-1-1", "top": ie ? 20 : 23, "left": 23 },
{ "id": "#static-2", "top": ie ? 121 : 122, left: 7 }
];
jQuery.each( tests, function() {
equal( $( this["id"] ).offset().top, this["top"], "jQuery('" + this["id"] + "').offset().top" );
equal( $( this["id"] ).offset().left, this["left"], "jQuery('" + this["id"] + "').offset().left" );
});
// get position
tests = [
{ "id": "#static-1", "top": ie ? 5 : 6, "left": 6 },
{ "id": "#static-1-1", "top": ie ? 12 : 14, "left": 14 },
{ "id": "#static-1-1-1", "top": ie ? 19 : 22, "left": 22 },
{ "id": "#static-2", "top": ie ? 120 : 121, "left": 6 }
];
jQuery.each( tests, function() {
equal( $( this["id"] ).position().top, this["top"], "jQuery('" + this["top"] + "').position().top" );
equal( $( this["id"] ).position().left, this["left"], "jQuery('" + this["left"] +"').position().left" );
});
// set offset
tests = [
{ "id": "#static-2", "top": 200, "left": 200 },
{ "id": "#static-2", "top": 100, "left": 100 },
{ "id": "#static-2", "top": -2, "left": -2 },
{ "id": "#static-2", "top": 121, "left": 6 },
{ "id": "#static-1-1-1", "top": 50, "left": 50 },
{ "id": "#static-1-1-1", "top": 10, "left": 10 },
{ "id": "#static-1-1-1", "top": -1, "left": -1 },
{ "id": "#static-1-1-1", "top": 22, "left": 22 },
{ "id": "#static-1-1", "top": 25, "left": 25 },
{ "id": "#static-1-1", "top": 10, "left": 10 },
{ "id": "#static-1-1", "top": -3, "left": -3 },
{ "id": "#static-1-1", "top": 14, "left": 14 },
{ "id": "#static-1", "top": 30, "left": 30 },
{ "id": "#static-1", "top": 2, "left": 2 },
{ "id": "#static-1", "top": -2, "left": -2 },
{ "id": "#static-1", "top": 7, "left": 7 }
];
jQuery.each( tests, function() {
$( this["id"] ).offset({ "top": this["top"], "left": this["left"] });
equal( $( this["id"] ).offset().top, this["top"], "jQuery('" + this["id"] + "').offset({ top: " + this["top"] + " })" );
equal( $( this["id"] ).offset().left, this["left"], "jQuery('" + this["id"] + "').offset({ left: " + this["left"] + " })" );
$( this["id"] ).offset({ "top": this["top"], "left": this["left"], "using": function( props ) {
$( this ).css({
"top": props.top + 1,
"left": props.left + 1
});
}});
equal( $( this["id"] ).offset().top, this["top"] + 1, "jQuery('" + this["id"] + "').offset({ top: " + (this["top"] + 1) + ", using: fn })" );
equal( $( this["id"] ).offset().left, this["left"] + 1, "jQuery('" + this["id"] + "').offset({ left: " + (this["left"] + 1) + ", using: fn })" );
});
});
testIframe("offset/fixed", "fixed", function( $ ) {
expect(34);
var ie, tests, $noTopLeft;
// IE is collapsing the top margin of 1px; detect and adjust accordingly
ie = $("#fixed-1").position().top === 2;
tests = [
{
"id": "#fixed-1",
"offsetTop": 1001,
"offsetLeft": 1001,
"positionTop": ie ? 2 : 0,
"positionLeft": ie ? 2 : 0
},
{
"id": "#fixed-2",
"offsetTop": 1021,
"offsetLeft": 1021,
"positionTop": ie ? 22 : 20,
"positionLeft": ie ? 22 : 20
}
];
jQuery.each( tests, function() {
if ( !window.supportsScroll ) {
ok( true, "Browser doesn't support scroll position." );
ok( true, "Browser doesn't support scroll position." );
ok( true, "Browser doesn't support scroll position." );
ok( true, "Browser doesn't support scroll position." );
} else if ( window.supportsFixedPosition ) {
equal( $( this["id"] ).offset().top, this["offsetTop"], "jQuery('" + this["id"] + "').offset().top" );
equal( $( this["id"] ).position().top, this["positionTop"], "jQuery('" + this["id"] + "').position().top" );
equal( $( this["id"] ).offset().left, this["offsetLeft"], "jQuery('" + this["id"] + "').offset().left" );
equal( $( this["id"] ).position().left, this["positionLeft"], "jQuery('" + this["id"] + "').position().left" );
} else {
// need to have same number of assertions
ok( true, "Fixed position is not supported" );
ok( true, "Fixed position is not supported" );
ok( true, "Fixed position is not supported" );
ok( true, "Fixed position is not supported" );
}
});
tests = [
{ "id": "#fixed-1", "top": 100, "left": 100 },
{ "id": "#fixed-1", "top": 0, "left": 0 },
{ "id": "#fixed-1", "top": -4, "left": -4 },
{ "id": "#fixed-2", "top": 200, "left": 200 },
{ "id": "#fixed-2", "top": 0, "left": 0 },
{ "id": "#fixed-2", "top": -5, "left": -5 }
];
jQuery.each( tests, function() {
if ( window.supportsFixedPosition ) {
$( this["id"] ).offset({ "top": this["top"], "left": this["left"] });
equal( $( this["id"] ).offset().top, this["top"], "jQuery('" + this["id"] + "').offset({ top: " + this["top"] + " })" );
equal( $( this["id"] ).offset().left, this["left"], "jQuery('" + this["id"] + "').offset({ left: " + this["left"] + " })" );
$( this["id"] ).offset({ "top": this["top"], "left": this["left"], "using": function( props ) {
$( this ).css({
"top": props.top + 1,
"left": props.left + 1
});
}});
equal( $( this["id"] ).offset().top, this["top"] + 1, "jQuery('" + this["id"] + "').offset({ top: " + (this["top"] + 1) + ", using: fn })" );
equal( $( this["id"] ).offset().left, this["left"] + 1, "jQuery('" + this["id"] + "').offset({ left: " + (this["left"] + 1) + ", using: fn })" );
} else {
// need to have same number of assertions
ok( true, "Fixed position is not supported" );
ok( true, "Fixed position is not supported" );
ok( true, "Fixed position is not supported" );
ok( true, "Fixed position is not supported" );
}
});
// Bug 8316
$noTopLeft = $("#fixed-no-top-left");
if ( window.supportsFixedPosition ) {
equal( $noTopLeft.offset().top, 1007, "Check offset top for fixed element with no top set" );
equal( $noTopLeft.offset().left, 1007, "Check offset left for fixed element with no left set" );
} else {
// need to have same number of assertions
ok( true, "Fixed position is not supported" );
ok( true, "Fixed position is not supported" );
}
});
testIframe("offset/table", "table", function( $ ) {
expect(4);
equal( $("#table-1").offset().top, 6, "jQuery('#table-1').offset().top" );
equal( $("#table-1").offset().left, 6, "jQuery('#table-1').offset().left" );
equal( $("#th-1").offset().top, 10, "jQuery('#th-1').offset().top" );
equal( $("#th-1").offset().left, 10, "jQuery('#th-1').offset().left" );
});
testIframe("offset/scroll", "scroll", function( $, win ) {
expect(24);
// If we're going to bastardize the tests, let's just DO it
var ie = /msie [678]/i.test( navigator.userAgent );
if ( ie ) {
ok( true, "TestSwarm's iframe has hosed this test in oldIE, we surrender" );
} else {
equal( $("#scroll-1").offset().top, 7, "jQuery('#scroll-1').offset().top" );
}
equal( $("#scroll-1").offset().left, 7, "jQuery('#scroll-1').offset().left" );
if ( ie ) {
ok( true, "TestSwarm's iframe has hosed this test in oldIE, we surrender" );
} else {
equal( $("#scroll-1-1").offset().top, 11, "jQuery('#scroll-1-1').offset().top" );
}
equal( $("#scroll-1-1").offset().left, 11, "jQuery('#scroll-1-1').offset().left" );
// scroll offset tests .scrollTop/Left
equal( $("#scroll-1").scrollTop(), 5, "jQuery('#scroll-1').scrollTop()" );
equal( $("#scroll-1").scrollLeft(), 5, "jQuery('#scroll-1').scrollLeft()" );
equal( $("#scroll-1-1").scrollTop(), 0, "jQuery('#scroll-1-1').scrollTop()" );
equal( $("#scroll-1-1").scrollLeft(), 0, "jQuery('#scroll-1-1').scrollLeft()" );
// scroll method chaining
equal( $("#scroll-1").scrollTop(undefined).scrollTop(), 5, ".scrollTop(undefined) is chainable (#5571)" );
equal( $("#scroll-1").scrollLeft(undefined).scrollLeft(), 5, ".scrollLeft(undefined) is chainable (#5571)" );
win.name = "test";
if ( !window.supportsScroll ) {
ok( true, "Browser doesn't support scroll position." );
ok( true, "Browser doesn't support scroll position." );
ok( true, "Browser doesn't support scroll position." );
ok( true, "Browser doesn't support scroll position." );
} else {
equal( $(win).scrollTop(), 1000, "jQuery(window).scrollTop()" );
equal( $(win).scrollLeft(), 1000, "jQuery(window).scrollLeft()" );
equal( $(win.document).scrollTop(), 1000, "jQuery(document).scrollTop()" );
equal( $(win.document).scrollLeft(), 1000, "jQuery(document).scrollLeft()" );
}
// test jQuery using parent window/document
// jQuery reference here is in the iframe
window.scrollTo(0,0);
equal( $(window).scrollTop(), 0, "jQuery(window).scrollTop() other window" );
equal( $(window).scrollLeft(), 0, "jQuery(window).scrollLeft() other window" );
equal( $(document).scrollTop(), 0, "jQuery(window).scrollTop() other document" );
equal( $(document).scrollLeft(), 0, "jQuery(window).scrollLeft() other document" );
// Tests scrollTop/Left with empty jquery objects
notEqual( $().scrollTop(100), null, "jQuery().scrollTop(100) testing setter on empty jquery object" );
notEqual( $().scrollLeft(100), null, "jQuery().scrollLeft(100) testing setter on empty jquery object" );
notEqual( $().scrollTop(null), null, "jQuery().scrollTop(null) testing setter on empty jquery object" );
notEqual( $().scrollLeft(null), null, "jQuery().scrollLeft(null) testing setter on empty jquery object" );
strictEqual( $().scrollTop(), null, "jQuery().scrollTop(100) testing setter on empty jquery object" );
strictEqual( $().scrollLeft(), null, "jQuery().scrollLeft(100) testing setter on empty jquery object" );
});
testIframe("offset/body", "body", function( $ ) {
expect(4);
equal( $("body").offset().top, 1, "jQuery('#body').offset().top" );
equal( $("body").offset().left, 1, "jQuery('#body').offset().left" );
equal( $("#firstElement").position().left, 5, "$('#firstElement').position().left" );
equal( $("#firstElement").position().top, 5, "$('#firstElement').position().top" );
});
test("chaining", function() {
expect(3);
var coords = { "top": 1, "left": 1 };
equal( jQuery("#absolute-1").offset(coords).selector, "#absolute-1", "offset(coords) returns jQuery object" );
equal( jQuery("#non-existent").offset(coords).selector, "#non-existent", "offset(coords) with empty jQuery set returns jQuery object" );
equal( jQuery("#absolute-1").offset(undefined).selector, "#absolute-1", "offset(undefined) returns jQuery object (#5571)" );
});
test("offsetParent", function(){
expect(13);
var body, header, div, area;
body = jQuery("body").offsetParent();
equal( body.length, 1, "Only one offsetParent found." );
equal( body[0], document.documentElement, "The html element is the offsetParent of the body." );
header = jQuery("#qunit").offsetParent();
equal( header.length, 1, "Only one offsetParent found." );
equal( header[0], document.documentElement, "The html element is the offsetParent of #qunit." );
div = jQuery("#nothiddendivchild").offsetParent();
equal( div.length, 1, "Only one offsetParent found." );
equal( div[0], document.getElementById("qunit-fixture"), "The #qunit-fixture is the offsetParent of #nothiddendivchild." );
jQuery("#nothiddendiv").css("position", "relative");
div = jQuery("#nothiddendivchild").offsetParent();
equal( div.length, 1, "Only one offsetParent found." );
equal( div[0], jQuery("#nothiddendiv")[0], "The div is the offsetParent." );
div = jQuery("body, #nothiddendivchild").offsetParent();
equal( div.length, 2, "Two offsetParent found." );
equal( div[0], document.documentElement, "The html element is the offsetParent of the body." );
equal( div[1], jQuery("#nothiddendiv")[0], "The div is the offsetParent." );
area = jQuery("#imgmap area").offsetParent();
equal( area[0], document.documentElement, "The html element is the offsetParent of the body." );
div = jQuery("<div>").css({ "position": "absolute" }).appendTo("body");
equal( div.offsetParent()[0], document.documentElement, "Absolutely positioned div returns html as offset parent, see #12139" );
div.remove();
});
test("fractions (see #7730 and #7885)", function() {
expect(2);
jQuery("body").append("<div id='fractions'/>");
var result,
expected = { "top": 1000, "left": 1000 },
div = jQuery("#fractions");
div.css({
"position": "absolute",
"left": "1000.7432222px",
"top": "1000.532325px",
"width": 100,
"height": 100
});
div.offset(expected);
result = div.offset();
equal( result.top, expected.top, "Check top" );
equal( result.left, expected.left, "Check left" );
div.remove();
});
})();