简介
HTML4有一些对浏览历史的前进后退API的支持如:
window.history.back();
window.history.forward();
window.history.go(-1);
window.history.go(1);
HTML5浏览器新添加了不刷新改变网址地址的API:
var currentState = history.state;
var stateObj = { foo: "bar" };
window.history.pushState(stateObj, "page 2", "bar.html");
这些API构建单页面无刷新网站是十分有帮助的,很可惜他们在老浏览器中无法使用。history.js可以解决这个问题。
History.js优雅地支持所有浏览器的History/State的 API(pushState,replaceState,onPopState)。包括数据,title,replaceState。支持 jQuery,MooTools和Prototype。在HTML5浏览器,它使用原生API,可以直接修改URL,而无需再使用哈希值。对于HTML4 浏览器则使用Hash值进行兼容。
代码示例
(function(window,undefined){ // Bind to StateChange Event History.Adapter.bind(window,'statechange',function(){ // Note: We are using statechange instead of popstate var State = History.getState(); // Note: We are using History.getState() instead of event.state }); // Change our States History.pushState({state:1}, "State 1", "?state=1"); // logs {state:1}, "State 1", "?state=1" History.pushState({state:2}, "State 2", "?state=2"); // logs {state:2}, "State 2", "?state=2" History.replaceState({state:3}, "State 3", "?state=3"); // logs {state:3}, "State 3", "?state=3" History.pushState(null, null, "?state=4"); // logs {}, '', "?state=4" History.back(); // logs {state:3}, "State 3", "?state=3" History.back(); // logs {state:1}, "State 1", "?state=1" History.back(); // logs {}, "Home Page", "?" History.go(2); // logs {state:3}, "State 3", "?state=3" })(window);
效果
当在HTML5浏览器中时地址栏的变化
www.mysite.com www.mysite.com/?state=1 www.mysite.com/?state=2 www.mysite.com/?state=3 www.mysite.com/?state=4 www.mysite.com/?state=3 www.mysite.com/?state=1 www.mysite.com www.mysite.com/?state=3
当在HTML4浏览器中时地址栏的变化
www.mysite.com www.mysite.com/#?state=1&_suid=1 www.mysite.com/#?state=2&_suid=2 www.mysite.com/#?state=3&_suid=3 www.mysite.com/#?state=4 www.mysite.com/#?state=3&_suid=3 www.mysite.com/#?state=1&_suid=1 www.mysite.com www.mysite.com/#?state=3&_suid=3