您如何确定地检测用户是否在浏览器中按下了后退按钮?
如何使用#URL系统在单页web应用程序中强制使用页面内返回按钮?
为什么浏览器的后退按钮不触发它们自己的事件!?
您如何确定地检测用户是否在浏览器中按下了后退按钮?
如何使用#URL系统在单页web应用程序中强制使用页面内返回按钮?
为什么浏览器的后退按钮不触发它们自己的事件!?
当前回答
只有重新定义API(更改对象' history '的方法),才能实现成熟的组件。 我将分享刚才写的课程。 在Chrome和Mozilla上测试 仅支持HTML5和ECMAScript5-6
class HistoryNavigation {
static init()
{
if(HistoryNavigation.is_init===true){
return;
}
HistoryNavigation.is_init=true;
let history_stack=[];
let n=0;
let current_state={timestamp:Date.now()+n};
n++;
let init_HNState;
if(history.state!==null){
current_state=history.state.HNState;
history_stack=history.state.HNState.history_stack;
init_HNState=history.state.HNState;
} else {
init_HNState={timestamp:current_state.timestamp,history_stack};
}
let listenerPushState=function(params){
params=Object.assign({state:null},params);
params.state=params.state!==null?Object.assign({},params.state):{};
let h_state={ timestamp:Date.now()+n};
n++;
let key = history_stack.indexOf(current_state.timestamp);
key=key+1;
history_stack.splice(key);
history_stack.push(h_state.timestamp);
h_state.history_stack=history_stack;
params.state.HNState=h_state;
current_state=h_state;
return params;
};
let listenerReplaceState=function(params){
params=Object.assign({state:null},params);
params.state=params.state!==null?Object.assign({},params.state):null;
let h_state=Object.assign({},current_state);
h_state.history_stack=history_stack;
params.state.HNState=h_state;
return params;
};
let desc=Object.getOwnPropertyDescriptors(History.prototype);
delete desc.constructor;
Object.defineProperties(History.prototype,{
replaceState:Object.assign({},desc.replaceState,{
value:function(state,title,url){
let params={state,title,url};
HistoryNavigation.dispatchEvent('history.state.replace',params);
params=Object.assign({state,title,url},params);
params=listenerReplaceState(params);
desc.replaceState.value.call(this,params.state,params.title,params.url);
}
}),
pushState:Object.assign({},desc.pushState,{
value:function(state,title,url){
let params={state,title,url};
HistoryNavigation.dispatchEvent('history.state.push',params);
params=Object.assign({state,title,url},params);
params=listenerPushState(params);
return desc.pushState.value.call(this, params.state, params.title, params.url);
}
})
});
HistoryNavigation.addEventListener('popstate',function(event){
let HNState;
if(event.state==null){
HNState=init_HNState;
} else {
HNState=event.state.HNState;
}
let key_prev=history_stack.indexOf(current_state.timestamp);
let key_state=history_stack.indexOf(HNState.timestamp);
let delta=key_state-key_prev;
let params={delta,event,state:Object.assign({},event.state)};
delete params.state.HNState;
HNState.history_stack=history_stack;
if(event.state!==null){
event.state.HNState=HNState;
}
current_state=HNState;
HistoryNavigation.dispatchEvent('history.go',params);
});
}
static addEventListener(...arg)
{
window.addEventListener(...arg);
}
static removeEventListener(...arg)
{
window.removeEventListener(...arg);
}
static dispatchEvent(event,params)
{
if(!(event instanceof Event)){
event=new Event(event,{cancelable:true});
}
event.params=params;
window.dispatchEvent(event);
};
}
HistoryNavigation.init();
// exemple
HistoryNavigation.addEventListener('popstate',function(event){
console.log('Will not start because they blocked the work');
});
HistoryNavigation.addEventListener('history.go',function(event){
event.params.event.stopImmediatePropagation();// blocked popstate listeners
console.log(event.params);
// back or forward - see event.params.delta
});
HistoryNavigation.addEventListener('history.state.push',function(event){
console.log(event);
});
HistoryNavigation.addEventListener('history.state.replace',function(event){
console.log(event);
});
history.pushState({h:'hello'},'','');
history.pushState({h:'hello2'},'','');
history.pushState({h:'hello3'},'','');
history.back();
```
其他回答
该文档。鼠标悬停不适用于IE和FireFox。 但是我试过了:
$(document).ready(function () {
setInterval(function () {
var $sample = $("body");
if ($sample.is(":hover")) {
window.innerDocClick = true;
} else {
window.innerDocClick = false;
}
});
});
window.onhashchange = function () {
if (window.innerDocClick) {
//Your own in-page mechanism triggered the hash change
} else {
//Browser back or forward button was pressed
}
};
这适用于Chrome和IE,而不是FireFox。仍在努力完善FireFox。任何检测浏览器后退/前进按钮点击的简单方法都是受欢迎的,尤其是在JQuery中,也包括AngularJS或纯Javascript。
我尝试了上面的方法,但是没有一个对我有效。这是解决方案
if(window.event)
{
if(window.event.clientX < 40 && window.event.clientY < 0)
{
alert("Browser back button is clicked...");
}
else
{
alert("Browser refresh button is clicked...");
}
}
详情请参考http://www.codeproject.com/Articles/696526/Solution-to-Browser-Back-Button-Click-Event-Handli
以下是我的看法。假设是,当URL更改但检测到文档内没有单击时,它是浏览器返回(是的,或向前)。用户点击2秒后重置,使其在通过Ajax加载内容的页面上工作:
(function(window, $) {
var anyClick, consoleLog, debug, delay;
delay = function(sec, func) {
return setTimeout(func, sec * 1000);
};
debug = true;
anyClick = false;
consoleLog = function(type, message) {
if (debug) {
return console[type](message);
}
};
$(window.document).click(function() {
anyClick = true;
consoleLog("info", "clicked");
return delay(2, function() {
consoleLog("info", "reset click state");
return anyClick = false;
});
});
return window.addEventListener("popstate", function(e) {
if (anyClick !== true) {
consoleLog("info", "Back clicked");
return window.dataLayer.push({
event: 'analyticsEvent',
eventCategory: 'test',
eventAction: 'test'
});
}
});
})(window, jQuery);
浏览器会发出popstate事件,如果你通过你的应用程序调用导航
window.history.pushState({},'','/to')
如果您手动在地址栏中输入地址并单击后退按钮,popstate事件将不会被触发。
如果你用这个简化的功能在应用中导航
const navigate = (to) => {
window.history.pushState({}, ",", to);
};
这样就可以了
const handlePopstate = () => {
console.log("popped");
};
window.addEventListener("popstate", handlePopstate);
正在寻找这个问题的解决方案,并根据这里的一些答案和History.pushState()和WindowEventHandlers.onpopstate的MDN Web文档页面,将一个简单的骨架测试html放在一起。
下面的HTML和JavaScript很容易复制、粘贴和测试。
使用后退和前进浏览器按钮,快捷键,添加对URL的更改(这在某些情况下很重要)。
简单到可以向现有代码中添加关键点,并且应该是可扩展的。
<html>
<body>
<div id="p1">Option 1</div>
<div id="p2">Option 2</div>
<div id="p3">Option 3</div>
<div id="p4">Option 4</div>
<div id="c"></div>
<script>
var chg={
set:function(str){
var d=document.getElementById("c");
d.textContent=str;
},
go:function(e){
var s={"p":this.id};
chg.set(s.p);
hstry.add(s);
}
};
var hstry={
add:function(s){
var u=new URL(window.location);
u.searchParams.set("x",s.p);
window.history.pushState(s,"",u);
},
adjust:function(state){
if(state.p){
chg.set(state.p);
}
}
};
window.onpopstate=function(e){
console.log("popstate, e.state:["+ JSON.stringify(e.state) +"]");
hstry.adjust(e.state);
}
window.onload=function(){
var i,d,a=["p1","p2","p3","p4"];
for(i=0;i<a.length;i++){
d=document.getElementById(a[i]);
d.addEventListener("click",chg.go,false);
}
}
</script>
</body>
</html>