當用戶按下瀏覽器的后退按鈕時關閉Jquery對話框

Question

我有這個問題，當使用按下瀏覽器的后退按鈕時，Jquery UI對話框不會關閉。 我環顧四周尋找答案，我發現了onhashchange事件，我無法使用，因為我打開的頁面在對話框打開時沒有發送httprequest，所以后退按鈕也不會發送新的請求。

任何人都可以幫我解釋為什么在對話框打開時它不發送httprequest？ 如何關閉后退按鈕上的對話框？

謝謝

以下是我的JavaScript代碼。

// Functions to open VM popups
    function openVMDialog(vmId) {
        fetch.Ajax(vmDetailUrl + '?vmId=' + vmId, beforeDialogSend, onDialogSuccess, onDialogError);
        // Not using pushState on browsers that don't support pushState (IE<10), pjax can fail gracefully without $.support.pjax check
        // but IE causes pjax to scroll to top. Check support.pjax here to prevent that from happening on IE.
        if ($.support.pjax) {
            @Model.AccountId.HasValue.ToString().ToLower()
            ? window.history.pushState(null, null, indexUrl + "&vmId=" + vmId )
            : window.history.pushState(null, null, "?vmId=" + vmId);
        }

    };
    function beforeDialogSend() {
        $("#popup").html('<div class="loader"><img src="@Links.Content.loader_gif" alt="loader" /></loader>').dialog('open');
    };
    function onDialogSuccess(data) {
        $("#popup").html(data).hide().fadeIn(1000).dialog({position: 'center'});
    };
    function onDialogError() {
        $("#popup").html('<p class="loader">Uh oh! A <em>Server Error</em> Occurred</p>');
    };

    function openDialogRestrictions(vmId) {
        // Disable background scroll when dialog is open
        if ($(document).height() > $(window).height()) {
            var scrollTop = ($('html').scrollTop()) ? $('html').scrollTop() : $('body').scrollTop();
            $('html').addClass('disableScroll').css('top',-scrollTop);
        }
        //Click anywhere to close
        jQuery('.ui-widget-overlay').bind('click', function() {
            jQuery('#popup').dialog('close');
        })
        setGifVisibility("live-gif", false);
    };

    function closeDialogRestrictions() {
        // Enable background scroll when dialog is close
        var scrollTop = parseInt($('html').css('top'));
        $('html').removeClass('disableScroll');
        $('html,body').scrollTop(-scrollTop);
        if ($.support.pjax) window.history.pushState(null, null, indexUrl);
        setGifVisibility("live-gif", true);
    };

    $(document).ready(function() {

        // Prevent pjax from scrolling to top.
        if ($.support.pjax) $.pjax.defaults.scrollTo = false;

        // Dialog settings for VMs
        $("#popup").dialog({
            autoOpen: false,
            position: 'center',
            width: 450,
            maxHeight: 600,
            minHeight: 450,
            resizable: false,
            draggable: false,
            closeOnEscape: true,
            modal: true,
            closeText: null,
            show: { effect: "clip", duration: 300 },
            hide: { effect: "clip", duration: 300 },
            dialogClass: 'fixed-dialog',
            open: openDialogRestrictions,
            close: closeDialogRestrictions
        });

        setHeight();
        loadContent();

        if (@Model.VMId.HasValue.ToString().ToLower()) openVMDialog(@Model.VMId);

        // Refreshes the page every 1 minute
        setInterval(loadContent, 60000);
    });

Answer 1

嘗試這個

假設單擊popup-btn ，將顯示彈出面板 。

要采取的行動

1. 單擊“ 打開彈出窗口面板”鏈接。
   將顯示紅色彈出面板
2. 單擊瀏覽器后退按鈕 。
   紅色彈出面板將消失

 <style> .popup-panel { display:none; width:100px; height:100px; background:red; } </style> <a class="popup-btn" style="cursor:pointer;color:blue">Open Popup Panel</a> <div class="popup-panel"></div> <script src="http://code.jquery.com/jquery-2.1.4.min.js"></script> <script> $(document).ready(function(){ $(".popup-btn").click(function () { location.hash = "popup"; $(".popup-panel").show(); }); }); $(window).bind('hashchange', function () { if (location.hash == null || location.hash == "") { $(".popup-panel").hide(); } }); </script> 

Answer 2

嘗試這個

<script language="javascript">
$(document).ready(function () {
        $( window ).unload(function() {
          //alert( "Bye now!" );
            jQuery('#popup').dialog('close');
         });
});
</script>