This repository has been archived by the owner on Oct 8, 2021. It is now read-only.
/
jquery.mobile.support.js
186 lines (155 loc) · 6.21 KB
/
jquery.mobile.support.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
//>>excludeStart("jqmBuildExclude", pragmas.jqmBuildExclude);
//>>description: Assorted tests to qualify browsers by detecting features
//>>label: Support Tests
//>>group: Core
define( [ "jquery", "./jquery.mobile.core", "./jquery.mobile.media", "./jquery.mobile.support.orientation" ], function( $ ) {
//>>excludeEnd("jqmBuildExclude");
(function( $, undefined ) {
var fakeBody = $( "<body>" ).prependTo( "html" ),
fbCSS = fakeBody[ 0 ].style,
vendors = [ "Webkit", "Moz", "O" ],
webos = "palmGetResource" in window, //only used to rule out scrollTop
opera = window.opera,
operamini = window.operamini && ({}).toString.call( window.operamini ) === "[object OperaMini]",
bb = window.blackberry; //only used to rule out box shadow, as it's filled opaque on BB
// thx Modernizr
function propExists( prop ) {
var uc_prop = prop.charAt( 0 ).toUpperCase() + prop.substr( 1 ),
props = ( prop + " " + vendors.join( uc_prop + " " ) + uc_prop ).split( " " );
for ( var v in props ) {
if ( fbCSS[ props[ v ] ] !== undefined ) {
return true;
}
}
}
function validStyle( prop, value, check_vend ) {
var div = document.createElement( 'div' ),
uc = function( txt ) {
return txt.charAt( 0 ).toUpperCase() + txt.substr( 1 );
},
vend_pref = function( vend ) {
return "-" + vend.charAt( 0 ).toLowerCase() + vend.substr( 1 ) + "-";
},
check_style = function( vend ) {
var vend_prop = vend_pref( vend ) + prop + ": " + value + ";",
uc_vend = uc( vend ),
propStyle = uc_vend + uc( prop );
div.setAttribute( "style", vend_prop );
if ( !!div.style[ propStyle ] ) {
ret = true;
}
},
check_vends = check_vend ? [ check_vend ] : vendors,
ret;
for( var i = 0; i < check_vends.length; i++ ) {
check_style( check_vends[i] );
}
return !!ret;
}
// Thanks to Modernizr src for this test idea. `perspective` check is limited to Moz to prevent a false positive for 3D transforms on Android.
function transform3dTest() {
var prop = "transform-3d";
return validStyle( 'perspective', '10px', 'moz' ) || $.mobile.media( "(-" + vendors.join( "-" + prop + "),(-" ) + "-" + prop + "),(" + prop + ")" );
}
// Test for dynamic-updating base tag support ( allows us to avoid href,src attr rewriting )
function baseTagTest() {
var fauxBase = location.protocol + "//" + location.host + location.pathname + "ui-dir/",
base = $( "head base" ),
fauxEle = null,
href = "",
link, rebase;
if ( !base.length ) {
base = fauxEle = $( "<base>", { "href": fauxBase }).appendTo( "head" );
} else {
href = base.attr( "href" );
}
link = $( "<a href='testurl' />" ).prependTo( fakeBody );
rebase = link[ 0 ].href;
base[ 0 ].href = href || location.pathname;
if ( fauxEle ) {
fauxEle.remove();
}
return rebase.indexOf( fauxBase ) === 0;
}
// Thanks Modernizr
function cssPointerEventsTest() {
var element = document.createElement( 'x' ),
documentElement = document.documentElement,
getComputedStyle = window.getComputedStyle,
supports;
if ( !( 'pointerEvents' in element.style ) ) {
return false;
}
element.style.pointerEvents = 'auto';
element.style.pointerEvents = 'x';
documentElement.appendChild( element );
supports = getComputedStyle &&
getComputedStyle( element, '' ).pointerEvents === 'auto';
documentElement.removeChild( element );
return !!supports;
}
// non-UA-based IE version check by James Padolsey, modified by jdalton - from http://gist.github.com/527683
// allows for inclusion of IE 6+, including Windows Mobile 7
$.extend( $.mobile, { browser: {} } );
$.mobile.browser.ie = (function() {
var v = 3,
div = document.createElement( "div" ),
a = div.all || [];
do {
div.innerHTML = "<!--[if gt IE " + ( ++v ) + "]><br><![endif]-->";
} while( a[0] );
return v > 4 ? v : !v;
})();
$.extend( $.support, {
cssTransitions: "WebKitTransitionEvent" in window || validStyle( 'transition', 'height 100ms linear' ) && !opera,
pushState: "pushState" in history && "replaceState" in history,
mediaquery: $.mobile.media( "only all" ),
cssPseudoElement: !!propExists( "content" ),
touchOverflow: !!propExists( "overflowScrolling" ),
cssTransform3d: transform3dTest(),
boxShadow: !!propExists( "boxShadow" ) && !bb,
scrollTop: ( "pageXOffset" in window || "scrollTop" in document.documentElement || "scrollTop" in fakeBody[ 0 ] ) && !webos && !operamini,
dynamicBaseTag: baseTagTest(),
cssPointerEvents: cssPointerEventsTest()
});
fakeBody.remove();
// $.mobile.ajaxBlacklist is used to override ajaxEnabled on platforms that have known conflicts with hash history updates (BB5, Symbian)
// or that generally work better browsing in regular http for full page refreshes (Opera Mini)
// Note: This detection below is used as a last resort.
// We recommend only using these detection methods when all other more reliable/forward-looking approaches are not possible
var nokiaLTE7_3 = (function() {
var ua = window.navigator.userAgent;
//The following is an attempt to match Nokia browsers that are running Symbian/s60, with webkit, version 7.3 or older
return ua.indexOf( "Nokia" ) > -1 &&
( ua.indexOf( "Symbian/3" ) > -1 || ua.indexOf( "Series60/5" ) > -1 ) &&
ua.indexOf( "AppleWebKit" ) > -1 &&
ua.match( /(BrowserNG|NokiaBrowser)\/7\.[0-3]/ );
})();
// Support conditions that must be met in order to proceed
// default enhanced qualifications are media query support OR IE 7+
$.mobile.gradeA = function() {
return $.support.mediaquery || $.mobile.browser.ie && $.mobile.browser.ie >= 7;
};
$.mobile.ajaxBlacklist =
// BlackBerry browsers, pre-webkit
window.blackberry && !window.WebKitPoint ||
// Opera Mini
operamini ||
// Symbian webkits pre 7.3
nokiaLTE7_3;
// Lastly, this workaround is the only way we've found so far to get pre 7.3 Symbian webkit devices
// to render the stylesheets when they're referenced before this script, as we'd recommend doing.
// This simply reappends the CSS in place, which for some reason makes it apply
if ( nokiaLTE7_3 ) {
$(function() {
$( "head link[rel='stylesheet']" ).attr( "rel", "alternate stylesheet" ).attr( "rel", "stylesheet" );
});
}
// For ruling out shadows via css
if ( !$.support.boxShadow ) {
$( "html" ).addClass( "ui-mobile-nosupport-boxshadow" );
}
})( jQuery );
//>>excludeStart("jqmBuildExclude", pragmas.jqmBuildExclude);
});
//>>excludeEnd("jqmBuildExclude");