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
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);
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。
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();
```
Kotlin/JS (React)的解决方案:
import org.w3c.dom.events.Event
import kotlin.browser.document
import kotlin.browser.window
...
override fun componentDidMount() {
window.history.pushState(null, document.title, window.location.href)
window.addEventListener("popstate", actionHandler)
}
...
val actionHandler: (Event?) -> Unit = {
window.history.pushState(
null,
document.title,
window.location.href
)
// add your actions here
}
我能够使用这篇文章中的一些答案和其他人让它在IE和Chrome/Edge中工作。历史。IE11中不支持pushState。
if (history.pushState) {
//Chrome and modern browsers
history.pushState(null, document.title, location.href);
window.addEventListener('popstate', function (event) {
history.pushState(null, document.title, location.href);
});
}
else {
//IE
history.forward();
}
<input style="display:none" id="__pageLoaded" value=""/>
$(document).ready(function () {
if ($("#__pageLoaded").val() != 1) {
$("#__pageLoaded").val(1);
} else {
shared.isBackLoad = true;
$("#__pageLoaded").val(1);
// Call any function that handles your back event
}
});
上面的代码对我有用。在移动浏览器上,当用户单击后退按钮时,我们希望恢复页面状态与他上次访问时相同。