reverse.js | |
|---|---|
(function ($) {
$.event.reverse = function (name, attributes) {
var bound = $(),
count = 0,
dispatch = $.event.handle || $.event.dispatch;
$.event.special[name] = {
setup: function () { | |
| add and sort the resizers array don't add window because it can't be compared easily | if (this !== window) {
bound.push(this);
$.unique(bound);
} |
| returns false if the window | return this !== window;
},
teardown: function () { |
| we shouldn't have to sort | bound = bound.not(this); |
| returns false if the window | return this !== window;
},
add: function (handleObj) {
var origHandler = handleObj.handler;
handleObj.origHandler = origHandler;
handleObj.handler = function (ev, data) {
var isWindow = this === window;
if (attributes && attributes.handler) {
var result = attributes.handler.apply(this, arguments);
if (result === true) {
return;
}
} |
| if this is the first handler for this event ... | if (count === 0) { |
| prevent others from doing what we are about to do | count++;
var where = data === false ? ev.target : this |
| trigger all this element's handlers | dispatch.call(where, ev, data);
if (ev.isPropagationStopped()) {
count--;
return;
} |
| get all other elements within this element that listen to move and trigger their resize events | var index = bound.index(this),
length = bound.length,
child, sub; |
| if index == -1 it's the window | while (++index < length && (child = bound[index]) && (isWindow || $.contains(where, child))) { |
| call the event | dispatch.call(child, ev, data);
if (ev.isPropagationStopped()) { |
| move index until the item is not in the current child | while (++index < length && (sub = bound[index])) {
if (!$.contains(child, sub)) { |
| set index back one | index--;
break
}
}
}
} |
| prevent others from responding | ev.stopImmediatePropagation();
count--;
} else {
handleObj.origHandler.call(this, ev, data);
}
}
}
}; |
| automatically bind on these | $([document, window]).bind(name, function () {});
return $.event.special[name];
}
return $;
})(jQuery);
|