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Fix for loading in HEAD #98

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Fix for loading in HEAD #98

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143 changes: 75 additions & 68 deletions jquery.overscroll.js
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Expand Up @@ -24,75 +24,8 @@
// The key used to bind-instance specific data to an object // The key used to bind-instance specific data to an object
var datakey = 'overscroll'; var datakey = 'overscroll';


// create <body> node if there's not one present (e.g., for test runners)
if (dom.body === null) {
dom.documentElement.appendChild(
dom.createElement('body')
);
}

// runs feature detection for overscroll // runs feature detection for overscroll
var compat = { var compat = null;
animate: (function(){
var fn = global.requestAnimationFrame ||
global.webkitRequestAnimationFrame ||
global.mozRequestAnimationFrame ||
global.oRequestAnimationFrame ||
global.msRequestAnimationFrame ||
function(callback) { wait(callback, 1000/60); };
return function(callback) {
fn.call(global, callback);
};
})(),
overflowScrolling: (function(){
var style = '';
var div = dom.createElement('div');
var prefixes = ['webkit', 'moz', 'o', 'ms'];
dom.body.appendChild(div);
$.each(prefixes, function(i, prefix){
div.style[prefix + 'OverflowScrolling'] = 'touch';
});
div.style.overflowScrolling = 'touch';
var computedStyle = global.getComputedStyle(div);
if (!!computedStyle.overflowScrolling) {
style = 'overflow-scrolling';
} else {
$.each(prefixes, function(i, prefix){
if (!!computedStyle[prefix + 'OverflowScrolling']) {
style = '-' + prefix + '-overflow-scrolling';
}
return !style;
});
}
div.parentNode.removeChild(div);
return style;
})(),
cursor: (function() {
var div = dom.createElement('div');
var prefixes = ['webkit', 'moz'];
var gmail = 'https://mail.google.com/mail/images/2/';
var style = {
grab: 'url('+gmail+'openhand.cur), move',
grabbing: 'url('+gmail+'closedhand.cur), move'
};
dom.body.appendChild(div);
$.each(prefixes, function(i, prefix){
var found, cursor = '-' + prefix + '-grab';
div.style.cursor = cursor;
var computedStyle = global.getComputedStyle(div);
found = computedStyle.cursor === cursor;
if (found) {
style = {
grab: '-' + prefix + '-grab',
grabbing: '-' + prefix + '-grabbing'
};
}
return !found;
});
div.parentNode.removeChild(div);
return style;
})()
};


// These are all the events that could possibly // These are all the events that could possibly
// be used by the plug-in // be used by the plug-in
Expand Down Expand Up @@ -741,6 +674,80 @@
// You can find it's exposure point at the end // You can find it's exposure point at the end
// of this closure // of this closure
function overscroll(options) { function overscroll(options) {
if (!compat) {

// create <body> node if there's not one present (e.g., for test runners)
if (dom.body === null) {
dom.documentElement.appendChild(
dom.createElement('body')
);
}

// runs feature detection for overscroll
compat = {
animate: (function(){
var fn = global.requestAnimationFrame ||
global.webkitRequestAnimationFrame ||
global.mozRequestAnimationFrame ||
global.oRequestAnimationFrame ||
global.msRequestAnimationFrame ||
function(callback) { wait(callback, 1000/60); };
return function(callback) {
fn.call(global, callback);
};
})(),
overflowScrolling: (function(){
var style = '';
var div = dom.createElement('div');
var prefixes = ['webkit', 'moz', 'o', 'ms'];
dom.body.appendChild(div);
$.each(prefixes, function(i, prefix){
div.style[prefix + 'OverflowScrolling'] = 'touch';
});
div.style.overflowScrolling = 'touch';
var computedStyle = global.getComputedStyle(div);
if (!!computedStyle.overflowScrolling) {
style = 'overflow-scrolling';
} else {
$.each(prefixes, function(i, prefix){
if (!!computedStyle[prefix + 'OverflowScrolling']) {
style = '-' + prefix + '-overflow-scrolling';
}
return !style;
});
}
div.parentNode.removeChild(div);
return style;
})(),
cursor: (function() {
var div = dom.createElement('div');
var prefixes = ['webkit', 'moz'];
var gmail = 'https://mail.google.com/mail/images/2/';
var style = {
grab: 'url('+gmail+'openhand.cur), move',
grabbing: 'url('+gmail+'closedhand.cur), move'
};
dom.body.appendChild(div);
$.each(prefixes, function(i, prefix){
var found, cursor = '-' + prefix + '-grab';
div.style.cursor = cursor;
var computedStyle = global.getComputedStyle(div);
found = computedStyle.cursor === cursor;
if (found) {
style = {
grab: '-' + prefix + '-grab',
grabbing: '-' + prefix + '-grabbing'
};
}
return !found;
});
div.parentNode.removeChild(div);
return style;
})()
};
}


return this.removeOverscroll().each(function() { return this.removeOverscroll().each(function() {
setup(this, options); setup(this, options);
}); });
Expand Down