Created
March 3, 2017 21:01
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8"> | |
<title>Building a router</title> | |
<script> | |
var Router = { | |
routes: [], | |
mode: null, | |
root: '/', | |
config: function(options) { | |
this.mode = options && options.mode && options.mode == 'history' | |
&& !!(history.pushState) ? 'history' : 'hash'; | |
this.root = options && options.root ? '/' + this.clearSlashes(options.root) + '/' : '/'; | |
return this; | |
}, | |
getFragment: function() { | |
var fragment = ''; | |
if(this.mode === 'history') { | |
fragment = this.clearSlashes(decodeURI(location.pathname + location.search)); | |
fragment = fragment.replace(/\?(.*)$/, ''); | |
fragment = this.root != '/' ? fragment.replace(this.root, '') : fragment; | |
} else { | |
var match = window.location.href.match(/#(.*)$/); | |
fragment = match ? match[1] : ''; | |
} | |
return this.clearSlashes(fragment); | |
}, | |
clearSlashes: function(path) { | |
return path.toString().replace(/\/$/, '').replace(/^\//, ''); | |
}, | |
add: function(re, handler) { | |
if(typeof re == 'function') { | |
handler = re; | |
re = ''; | |
} | |
this.routes.push({ re: re, handler: handler}); | |
return this; | |
}, | |
remove: function(param) { | |
for(var i=0, r; i<this.routes.length, r = this.routes[i]; i++) { | |
if(r.handler === param || r.re.toString() === param.toString()) { | |
this.routes.splice(i, 1); | |
return this; | |
} | |
} | |
return this; | |
}, | |
flush: function() { | |
this.routes = []; | |
this.mode = null; | |
this.root = '/'; | |
return this; | |
}, | |
check: function(f) { | |
var fragment = f || this.getFragment(); | |
for(var i=0; i<this.routes.length; i++) { | |
var match = fragment.match(this.routes[i].re); | |
if(match) { | |
match.shift(); | |
this.routes[i].handler.apply({}, match); | |
return this; | |
} | |
} | |
return this; | |
}, | |
listen: function() { | |
var self = this; | |
var current = self.getFragment(); | |
var fn = function() { | |
if(current !== self.getFragment()) { | |
current = self.getFragment(); | |
self.check(current); | |
} | |
} | |
clearInterval(this.interval); | |
this.interval = setInterval(fn, 50); | |
return this; | |
}, | |
navigate: function(path) { | |
path = path ? path : ''; | |
if(this.mode === 'history') { | |
history.pushState(null, null, this.root + this.clearSlashes(path)); | |
} else { | |
window.location.href = window.location.href.replace(/#(.*)$/, '') + '#' + path; | |
} | |
return this; | |
} | |
} | |
// configuration | |
Router.config({ mode: 'history'}); | |
// returning the user to the initial state | |
Router.navigate(); | |
// adding routes | |
Router | |
.add('/home/', function() { | |
console.log('home'); | |
}) | |
.add(/about/, function() { | |
console.log('about'); | |
}) | |
.add(/products\/(.*)\/edit\/(.*)/, function() { | |
console.log('products', arguments); | |
}) | |
.add(function() { | |
console.log('default'); | |
}) | |
.check('/products/12/edit/22').listen(); | |
// forwarding | |
// Router.navigate('/about'); | |
</script> | |
</body> | |
</html> |
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