diff options
Diffstat (limited to 'themes/base/htdocs/luci-static/resources/xhr.js')
| -rw-r--r-- | themes/base/htdocs/luci-static/resources/xhr.js | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/themes/base/htdocs/luci-static/resources/xhr.js b/themes/base/htdocs/luci-static/resources/xhr.js deleted file mode 100644 index 701c12ac19..0000000000 --- a/themes/base/htdocs/luci-static/resources/xhr.js +++ /dev/null @@ -1,241 +0,0 @@ -/* - * xhr.js - XMLHttpRequest helper class - * (c) 2008-2010 Jo-Philipp Wich - */ - -XHR = function() -{ - this.reinit = function() - { - if (window.XMLHttpRequest) { - this._xmlHttp = new XMLHttpRequest(); - } - else if (window.ActiveXObject) { - this._xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); - } - else { - alert("xhr.js: XMLHttpRequest is not supported by this browser!"); - } - } - - this.busy = function() { - if (!this._xmlHttp) - return false; - - switch (this._xmlHttp.readyState) - { - case 1: - case 2: - case 3: - return true; - - default: - return false; - } - } - - this.abort = function() { - if (this.busy()) - this._xmlHttp.abort(); - } - - this.get = function(url,data,callback) - { - this.reinit(); - - var xhr = this._xmlHttp; - var code = this._encode(data); - - url = location.protocol + '//' + location.host + url; - - if (code) - if (url.substr(url.length-1,1) == '&') - url += code; - else - url += '?' + code; - - xhr.open('GET', url, true); - - xhr.onreadystatechange = function() - { - if (xhr.readyState == 4) { - var json = null; - if (xhr.getResponseHeader("Content-Type") == "application/json") { - try { - json = eval('(' + xhr.responseText + ')'); - } - catch(e) { - json = null; - } - } - - callback(xhr, json); - } - } - - xhr.send(null); - } - - this.post = function(url,data,callback) - { - this.reinit(); - - var xhr = this._xmlHttp; - var code = this._encode(data); - - xhr.onreadystatechange = function() - { - if (xhr.readyState == 4) - callback(xhr); - } - - xhr.open('POST', url, true); - xhr.setRequestHeader('Content-type', 'application/x-www-form-urlencoded'); - xhr.setRequestHeader('Content-length', code.length); - xhr.setRequestHeader('Connection', 'close'); - xhr.send(code); - } - - this.cancel = function() - { - this._xmlHttp.onreadystatechange = function(){}; - this._xmlHttp.abort(); - } - - this.send_form = function(form,callback,extra_values) - { - var code = ''; - - for (var i = 0; i < form.elements.length; i++) - { - var e = form.elements[i]; - - if (e.options) - { - code += (code ? '&' : '') + - form.elements[i].name + '=' + encodeURIComponent( - e.options[e.selectedIndex].value - ); - } - else if (e.length) - { - for (var j = 0; j < e.length; j++) - if (e[j].name) { - code += (code ? '&' : '') + - e[j].name + '=' + encodeURIComponent(e[j].value); - } - } - else - { - code += (code ? '&' : '') + - e.name + '=' + encodeURIComponent(e.value); - } - } - - if (typeof extra_values == 'object') - for (var key in extra_values) - code += (code ? '&' : '') + - key + '=' + encodeURIComponent(extra_values[key]); - - return( - (form.method == 'get') - ? this.get(form.getAttribute('action'), code, callback) - : this.post(form.getAttribute('action'), code, callback) - ); - } - - this._encode = function(obj) - { - obj = obj ? obj : { }; - obj['_'] = Math.random(); - - if (typeof obj == 'object') - { - var code = ''; - var self = this; - - for (var k in obj) - code += (code ? '&' : '') + - k + '=' + encodeURIComponent(obj[k]); - - return code; - } - - return obj; - } -} - -XHR.get = function(url, data, callback) -{ - (new XHR()).get(url, data, callback); -} - -XHR.poll = function(interval, url, data, callback) -{ - if (isNaN(interval) || interval < 1) - interval = 5; - - if (!XHR._q) - { - XHR._t = 0; - XHR._q = [ ]; - XHR._r = function() { - for (var i = 0, e = XHR._q[0]; i < XHR._q.length; e = XHR._q[++i]) - { - if (!(XHR._t % e.interval) && !e.xhr.busy()) - e.xhr.get(e.url, e.data, e.callback); - } - - XHR._t++; - }; - } - - XHR._q.push({ - interval: interval, - callback: callback, - url: url, - data: data, - xhr: new XHR() - }); - - XHR.run(); -} - -XHR.halt = function() -{ - if (XHR._i) - { - /* show & set poll indicator */ - try { - document.getElementById('xhr_poll_status').style.display = ''; - document.getElementById('xhr_poll_status_on').style.display = 'none'; - document.getElementById('xhr_poll_status_off').style.display = ''; - } catch(e) { } - - window.clearInterval(XHR._i); - XHR._i = null; - } -} - -XHR.run = function() -{ - if (XHR._r && !XHR._i) - { - /* show & set poll indicator */ - try { - document.getElementById('xhr_poll_status').style.display = ''; - document.getElementById('xhr_poll_status_on').style.display = ''; - document.getElementById('xhr_poll_status_off').style.display = 'none'; - } catch(e) { } - - /* kick first round manually to prevent one second lag when setting up - * the poll interval */ - XHR._r(); - XHR._i = window.setInterval(XHR._r, 1000); - } -} - -XHR.running = function() -{ - return !!(XHR._r && XHR._i); -} |