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-rw-r--r--src/support.js89
1 files changed, 40 insertions, 49 deletions
diff --git a/src/support.js b/src/support.js
index 16ce528f2..65081e40c 100644
--- a/src/support.js
+++ b/src/support.js
@@ -7,20 +7,17 @@ jQuery.support = (function() {
opt,
input,
fragment,
- tds,
- events,
eventName,
i,
isSupported,
- div = document.createElement( "div" ),
- documentElement = document.documentElement;
+ div = document.createElement("div");
// Preliminary tests
- div.setAttribute("className", "t");
- div.innerHTML = " <link/><table></table><a href='/a' style='top:1px;float:left;opacity:.55;'>a</a><input type='checkbox'/>";
+ div.setAttribute( "className", "t" );
+ div.innerHTML = " <link/><table></table><a href='/a' style='top:1px;float:left;opacity:.5;'>a</a><input type='checkbox'/>";
- all = div.getElementsByTagName( "*" );
- a = div.getElementsByTagName( "a" )[ 0 ];
+ all = div.getElementsByTagName("*");
+ a = div.getElementsByTagName("a")[ 0 ];
// Can't get basic test support
if ( !all || !all.length || !a ) {
@@ -28,9 +25,9 @@ jQuery.support = (function() {
}
// First batch of supports tests
- select = document.createElement( "select" );
+ select = document.createElement("select");
opt = select.appendChild( document.createElement("option") );
- input = div.getElementsByTagName( "input" )[ 0 ];
+ input = div.getElementsByTagName("input")[ 0 ];
support = {
// IE strips leading whitespace when .innerHTML is used
@@ -55,7 +52,7 @@ jQuery.support = (function() {
// Make sure that element opacity exists
// (IE uses filter instead)
// Use a regex to work around a WebKit issue. See #5145
- opacity: /^0.55/.test( a.style.opacity ),
+ opacity: /^0.5/.test( a.style.opacity ),
// Verify style float existence
// (IE uses styleFloat instead of cssFloat)
@@ -81,7 +78,7 @@ jQuery.support = (function() {
html5Clone: document.createElement("nav").cloneNode( true ).outerHTML !== "<:nav></:nav>",
// jQuery.support.boxModel DEPRECATED in 1.8 since we don't support Quirks Mode
- boxModel: (document.compatMode === "CSS1Compat"),
+ boxModel: ( document.compatMode === "CSS1Compat" ),
// Will be defined later
submitBubbles: true,
@@ -119,17 +116,17 @@ jQuery.support = (function() {
// bound event handlers (IE does this)
support.noCloneEvent = false;
});
- div.cloneNode( true ).fireEvent( "onclick" );
+ div.cloneNode( true ).fireEvent("onclick");
}
// Check if a radio maintains its value
// after being appended to the DOM
input = document.createElement("input");
input.value = "t";
- input.setAttribute("type", "radio");
+ input.setAttribute( "type", "radio" );
support.radioValue = input.value === "t";
- input.setAttribute("checked", "checked");
+ input.setAttribute( "checked", "checked" );
// #11217 - WebKit loses check when the name is after the checked attribute
input.setAttribute( "name", "t" );
@@ -156,9 +153,9 @@ jQuery.support = (function() {
// to go haywire. See: https://developer.mozilla.org/en/Security/CSP
if ( div.attachEvent ) {
for ( i in {
- submit: 1,
- change: 1,
- focusin: 1
+ submit: true,
+ change: true,
+ focusin: true
}) {
eventName = "on" + i;
isSupported = ( eventName in div );
@@ -170,17 +167,10 @@ jQuery.support = (function() {
}
}
- fragment.removeChild( div );
-
- // Null elements to avoid leaks in IE
- fragment = select = opt = div = input = null;
-
// Run tests that need a body at doc ready
jQuery(function() {
- var container, marginDiv,
+ var container, div, tds, marginDiv,
divReset = "padding:0;margin:0;border:0;display:block;overflow:hidden;",
- conMarginTop = 1,
- boxSizingPrefixes = [ "", "-moz-", "-webkit-", "" ],
body = document.getElementsByTagName("body")[0];
if ( !body ) {
@@ -189,7 +179,7 @@ jQuery.support = (function() {
}
container = document.createElement("div");
- container.style.cssText = "visibility:hidden;border:0;width:0;height:0;position:static;top:0;margin-top:" + conMarginTop + "px";
+ container.style.cssText = "visibility:hidden;border:0;width:0;height:0;position:static;top:0;margin-top:1px";
body.insertBefore( container, body.firstChild );
// Construct the test element
@@ -204,7 +194,7 @@ jQuery.support = (function() {
// hidden; don safety goggles and see bug #4512 for more information).
// (only IE 8 fails this test)
div.innerHTML = "<table><tr><td style='padding:0;margin:0;border:0;display:none'></td><td>t</td></tr></table>";
- tds = div.getElementsByTagName( "td" );
+ tds = div.getElementsByTagName("td");
isSupported = ( tds[ 0 ].offsetHeight === 0 );
tds[ 0 ].style.display = "";
@@ -214,20 +204,27 @@ jQuery.support = (function() {
// (IE <= 8 fail this test)
support.reliableHiddenOffsets = isSupported && ( tds[ 0 ].offsetHeight === 0 );
- // Check if div with explicit width and no margin-right incorrectly
- // gets computed margin-right based on width of container. For more
- // info see bug #3333
- // Fails in WebKit before Feb 2011 nightlies
- // WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
+ // Check box-sizing and margin behavior
+ div.innerHTML = "";
+ div.style.cssText = "box-sizing:border-box;-moz-box-sizing:border-box;-webkit-box-sizing:border-box;padding:1px;border:1px;display:block;width:4px;margin-top:1%;";
+ support.boxSizing = ( div.offsetWidth === 4 );
+ support.doesNotIncludeMarginInBodyOffset = ( body.offsetTop !== 1 );
if ( window.getComputedStyle ) {
- div.innerHTML = "";
- marginDiv = document.createElement( "div" );
+ support.pixelMargin = ( window.getComputedStyle( div, null ) || {} ).marginTop !== "1%";
+ support.boxSizingReliable = ( window.getComputedStyle( div, null ) || { width: "4px" } ).width === "4px";
+
+ // Check if div with explicit width and no margin-right incorrectly
+ // gets computed margin-right based on width of container. For more
+ // info see bug #3333
+ // Fails in WebKit before Feb 2011 nightlies
+ // WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
+ marginDiv = document.createElement("div");
marginDiv.style.cssText = div.style.cssText = divReset;
marginDiv.style.marginRight = marginDiv.style.width = "0";
- div.style.width = "2px";
+ div.style.width = "1px";
div.appendChild( marginDiv );
support.reliableMarginRight =
- ( parseInt( ( window.getComputedStyle( marginDiv, null ) || { marginRight: 0 } ).marginRight, 10 ) || 0 ) === 0;
+ !parseFloat( ( window.getComputedStyle( marginDiv, null ) || {} ).marginRight );
}
if ( typeof div.style.zoom !== "undefined" ) {
@@ -245,24 +242,18 @@ jQuery.support = (function() {
div.style.overflow = "visible";
div.innerHTML = "<div style='width:5px;'></div>";
support.shrinkWrapBlocks = ( div.offsetWidth !== 3 );
- }
- div.style.cssText = boxSizingPrefixes.join("box-sizing:border-box;") + "border:1px;width:4px;padding:1px;display:block;margin-top:1%;";
- support.boxSizing = ( div.offsetWidth === 4 );
- if ( window.getComputedStyle ) {
- support.boxSizingReliable = ( window.getComputedStyle( div, null ) || { width: "4px" } ).width === "4px";
- support.pixelMargin = ( window.getComputedStyle( div, null ) || { marginTop: 0 } ).marginTop !== "1%";
- }
-
- support.doesNotIncludeMarginInBodyOffset = ( body.offsetTop !== conMarginTop );
-
- if ( typeof container.style.zoom !== "undefined" ) {
container.style.zoom = 1;
}
+ // Null elements to avoid leaks in IE
body.removeChild( container );
- marginDiv = div = container = null;
+ container = div = tds = marginDiv = null;
});
+ // Null elements to avoid leaks in IE
+ fragment.removeChild( div );
+ all = a = select = opt = input = fragment = div = null;
+
return support;
})();
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 20:16:44 +0000