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Add Support module and added support for attachEvent.

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Note that attachEvent support is currently useless until $ works in Internet Explorer.
This commit is contained in:
Nate B 2011-06-30 17:53:50 -06:00
parent fae6542845
commit 2c307ddb3b
2 changed files with 116 additions and 25 deletions
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12
README.md
View File

@ -14,6 +14,17 @@ Browser support: IE9+, Latest versions of Firefox, Chrome, Safari, Opera
## Modules: ## ## Modules: ##
**Support**: Provides browser feature detection
properties:
* attachEvent:
True if `attachEvent` is supported
* addEventListener:
True if `addEventListener` is supported
* querySelector:
True if `querySelectorAll` is supported
**Ajax**: simple, jQuery-like ajax functions **Ajax**: simple, jQuery-like ajax functions
functions: functions:
@ -60,6 +71,7 @@ Browser support: IE9+, Latest versions of Firefox, Chrome, Safari, Opera
**Event**: wrapper for applying events to DOM objects **Event**: wrapper for applying events to DOM objects
*Depends on the `Support` module*
functions: functions:

131
kis.js
View File

@ -1,16 +1,19 @@
/** /**
Kis JS Keep It Simple JS Library Kis JS Keep It Simple JS Library
Copyright Timothy J. Warren Copyright Timothy J. Warren
License Public Domain License Public Domain
Version 0.1.0 Version 0.1.0
*/ */
(function (){ (function (){
"use strict"; "use strict";
// Property name for expandos on DOM objects
var kis_expando = "KIS_0_1_0";
//Browser requirements check //Browser requirements check
if (typeof document.querySelectorAll !== "function" || typeof window.addEventListener !== "function") if (!document.querySelectorAll)
{ {
return; return;
} }
@ -19,7 +22,7 @@
$_ = {}; $_ = {};
window.$_ = window.$_ || $_; $_ = window.$_ = window.$_ || $_;
/** /**
* $ * $
@ -35,6 +38,23 @@
window.$ = $; window.$ = $;
/**
* Support
*
* Module for browser feature detection
*/
(function (){
var support = {
attachEvent: typeof window.attachEvent === "function",
addEventListener: typeof window.addEventListener === "function",
querySelector: typeof document.querySelectorAll === "function"
};
$_.support = support;
}());
/** /**
* Ajax * Ajax
* *
@ -108,12 +128,12 @@
} }
}; };
window.$_.get = function (url, data, callback) $_.get = function (url, data, callback)
{ {
ajax._do(url, data, callback, false); ajax._do(url, data, callback, false);
}; };
window.$_.post = function (url, data, callback) $_.post = function (url, data, callback)
{ {
ajax._do(url, data, callback, true); ajax._do(url, data, callback, true);
}; };
@ -126,7 +146,7 @@
*/ */
(function (){ (function (){
window.$_.hb = (history.pushState) ? false : true; $_.hb = (history.pushState) ? false : true;
var qs = { var qs = {
parse: function (hb) parse: function (hb)
@ -207,7 +227,7 @@
} }
}; };
window.$_.qs = qs; $_.qs = qs;
}()); }());
@ -249,33 +269,92 @@
} }
}; };
window.$_.store = store; $_.store = store;
}()); }());
/** /**
* Event object * Event object
* *
* Event api wrapper * Event api wrapper
* Requires Support module
*/ */
(function (){ (function (){
var attach, remove, add_remove, e; var attach, remove, add_remove, e, support;
attach = function (sel, event, callback) support = $_.support;
{
if (typeof sel.addEventListener === "function")
{
sel.addEventListener(event, callback, false);
}
};
remove = function (sel, event, callback) // Define the proper attach and remove functions
// based on browser support
if(support.addEventListener)
{ {
if (typeof sel.removeEventListener === "function") attach = function (sel, event, callback)
{ {
sel.removeEventListener(event, callback, false); if (typeof sel.addEventListener === "function")
} {
}; sel.addEventListener(event, callback, false);
}
};
remove = function (sel, event, callback)
{
if (typeof sel.removeEventListener === "function")
{
sel.removeEventListener(event, callback, false);
}
};
}
else if(support.attachEvent)
{
attach = function (sel, event, callback)
{
function listener () {
// Internet Explorer fails to correctly set the 'this' object
// for event listeners, so we need to set it ourselves.
callback.apply(sel, arguments);
}
if (typeof sel.attachEvent === "function")
{
remove(sel, event, callback); // Make sure we don't have duplicate listeners
sel.attachEvent("on" + event, listener);
// Store our listener so we can remove it later
// TODO: Fix memory leak in IE6/7 with event listeners
var expando = sel[kis_expando] = sel[kis_expando] || {};
expando.listeners = expando.listeners || {};
expando.listeners[event] = expando.listeners[event] || [];
expando.listeners[event].push({
callback: callback,
listener: listener
});
}
};
remove = function (sel, event, callback)
{
if(typeof typeof sel.detachEvent === "function")
{
var expando = sel[kis_expando];
if (expando && expando.listeners
&& expando.listeners[event])
{
var listeners = expando.listeners[event];
for (var i=0; i<listeners.length; i++)
{
if (listeners[i].callback === callback)
{
sel.detachEvent("on" + event, listeners[i].listener);
listeners.splice(i, 1);
if(listeners.length === 0)
{
delete expando.listeners[event];
}
return;
}
}
}
}
};
}
add_remove = function (sel, event, callback, add) add_remove = function (sel, event, callback, add)
{ {
@ -335,7 +414,7 @@
} }
}; };
window.$_.event = e; $_.event = e;
}()); }());
@ -616,7 +695,7 @@
} }
}; };
window.$_.dom = d; $_.dom = d;
}()); }());
}()); }());