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Merge pull request #10 from csthenry/dev
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| function hasClass(el, cls) { | ||
| if (!el || !cls) return false | ||
| if (cls.indexOf(' ') !== -1) throw new Error('className should not contain space.') | ||
| if (el.classList) { | ||
| return el.classList.contains(cls) | ||
| } else { | ||
| return (' ' + el.className + ' ').indexOf(' ' + cls + ' ') > -1 | ||
| } | ||
| } | ||
|
|
||
| function addClass(el, cls) { | ||
| if (!el) return | ||
| var curClass = el.className | ||
| var classes = (cls || '').split(' ') | ||
|
|
||
| for (var i = 0, j = classes.length; i < j; i++) { | ||
| var clsName = classes[i] | ||
| if (!clsName) continue | ||
|
|
||
| if (el.classList) { | ||
| el.classList.add(clsName) | ||
| } else if (!hasClass(el, clsName)) { | ||
| curClass += ' ' + clsName | ||
| } | ||
| } | ||
| if (!el.classList) { | ||
| el.setAttribute('class', curClass) | ||
| } | ||
| } | ||
|
|
||
| function removeClass(el, cls) { | ||
| if (!el || !cls) return | ||
| var classes = cls.split(' ') | ||
| var curClass = ' ' + el.className + ' ' | ||
|
|
||
| for (var i = 0, j = classes.length; i < j; i++) { | ||
| var clsName = classes[i] | ||
| if (!clsName) continue | ||
|
|
||
| if (el.classList) { | ||
| el.classList.remove(clsName) | ||
| } else if (hasClass(el, clsName)) { | ||
| curClass = curClass.replace(' ' + clsName + ' ', ' ') | ||
| } | ||
| } | ||
| if (!el.classList) { | ||
| el.setAttribute('class', trim(curClass)) | ||
| } | ||
| } | ||
|
|
||
| module.exports = { | ||
| hasClass, | ||
| addClass, | ||
| removeClass, | ||
| } |
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