好的，所以我有了这个非常酷的以马里奥为主题的媒体播放器，它是由功能非常强大的 jQuery 插件jplayer的定制创建的。
所以，我想给用户选项来选择他或她是否想在网站的背景中自动播放音乐。
我默认将其关闭，因为这应该是一项业务，即使对于常规的非营利性网站，背景音乐也可能非常烦人，尤其是在不清楚如何启动和停止音频的情况下。
无论如何，我正在尝试使用直观的jQuery cookie 插件来设置一个 cookie 。
这是我在单击模式对话框中的按钮时设置的代码：
buttons: {
'Without Music': function() {
$(this).dialog('close');
$.cookie('autoPlay', 'no', { expires: 365 * 10 });
},
'With Music': function() {
$(this).dialog('close');
$.cookie('autoPlay', 'yes', { expires: 365 * 10 });
}
}
现在，我正在运行一个计时器，它每毫秒检查一次（是的，这可以很容易地调整，但我只想要即时结果！）自动播放 cookie 的值，无论是或否：
setInterval(function() {
if ($.cookie('autoPlay') == no) {
displayPlayList();
playListInit(false); // Parameter is a boolean for autoplay.
}
}, 1); // checks every millisecond (i.e. 1/1000 of a second)
// need to do speed tests, and see if fast checking results in bogged down pages, difference between 1 millisecond and even 100-300 are nearly negligible
setInterval(function() {
if ($.cookie('autoPlay') == yes) {
displayPlayList();
playListInit(false); // Parameter is a boolean for autoplay.
}
所以，出于某种原因，当我刷新页面时，选择是后。播放器不会像它应该的那样自动播放。现在，我认为问题可能是我的条件语句的原因。但我不确定..
更新：
这是我的整个新 jplayer.js 文件，其中包括我们需要为这个问题处理的代码：
$(document).ready(function(){
$("#jpId").jPlayer( {
swfPath: "/js"
});
var playItem = 0;
var myPlayList = [
{name:"SMB Overworld",mp3:"/audio/MushroomKingdomSMB.mp3"},
{name:"SMB Underworld",mp3:"/audio/UnderworldSMB.mp3"},
{name:"SMB Underwater",mp3:"/audio/UnderwaterSMB.mp3"},
{name:"SMW Castle",mp3:"/audio/CastleSMW.mp3"}
];
// Local copy of jQuery selectors, for performance.
var jpPlayTime = $("#jplayer_play_time");
var jpTotalTime = $("#jplayer_total_time");
$("#jquery_jplayer").jPlayer({
ready: function() {
displayPlayList();
playListInit(false); // Parameter is a boolean for autoplay.
}
})
.jPlayer("onProgressChange", function(loadPercent, playedPercentRelative, playedPercentAbsolute, playedTime, totalTime) {
jpPlayTime.text($.jPlayer.convertTime(playedTime));
jpTotalTime.text($.jPlayer.convertTime(totalTime));
})
.jPlayer("onSoundComplete", function() {
playListNext();
});
$("#jplayer_previous").click( function() {
playListPrev();
$(this).blur();
return false;
});
$("#jplayer_next").click( function() {
playListNext();
$(this).blur();
return false;
});
function displayPlayList() {
$("#jplayer_playlist ul").empty();
for (i=0; i < myPlayList.length; i++) {
var listItem = (i == myPlayList.length-1) ? "<li class='jplayer_playlist_item_last'>" : "<li>";
listItem += "<a href='#' id='jplayer_playlist_item_"+i+"' tabindex='1'>"+ myPlayList[i].name +"</a></li>";
$("#jplayer_playlist ul").append(listItem);
$("#jplayer_playlist_item_"+i).data( "index", i ).click( function() {
var index = $(this).data("index");
if (playItem != index) {
playListChange( index );
} else {
$("#jquery_jplayer").jPlayer("play");
}
$(this).blur();
return false;
});
}
}
function playListInit(autoplay) {
if(autoplay) {
playListChange( playItem );
} else {
playListConfig( playItem );
}
}
function playListConfig( index ) {
$("#jplayer_playlist_item_"+playItem).removeClass("jplayer_playlist_current").parent().removeClass("jplayer_playlist_current");
$("#jplayer_playlist_item_"+index).addClass("jplayer_playlist_current").parent().addClass("jplayer_playlist_current");
playItem = index;
$("#jquery_jplayer").jPlayer("setFile", myPlayList[playItem].mp3, myPlayList[playItem].ogg);
}
function playListChange( index ) {
playListConfig( index );
$("#jquery_jplayer").jPlayer("play");
}
function playListNext() {
var index = (playItem+1 < myPlayList.length) ? playItem+1 : 0;
playListChange( index );
}
function playListPrev() {
var index = (playItem-1 >= 0) ? playItem-1 : myPlayList.length-1;
playListChange( index );
}
$('#text_music').click(function() {
$('#jplayer').slideToggle(500);
});
$("#player").bind( "clickoutside", function(event){
if($('#jplayer').is(':visible')) {
$('#jplayer').slideToggle(500);
}
});
setInterval(function() {
if($('a#jplayer_playlist_item_0').hasClass('jplayer_playlist_current')) {
$("#bg_3, #bg_4, #map_4, #sprites_4, #platforms_4, #bg_5, #bg_6, #map_6, #sprites_6, #bg_7, #bg_8, #map_8, #sprites_8, #behindsprites_8").hide();
$("#bg_1, #bg_2, #map_2, #sprites_2").show();
};
if($('a#jplayer_playlist_item_1').hasClass('jplayer_playlist_current')) {
$("#bg_1, #bg_2, #map_2, #sprites_2, #bg_5, #bg_6, #map_6, #sprites_6, #bg_7, #bg_8, #map_8, #sprites_8, #behindsprites_8").hide();
$("#bg_3, #bg_4, #map_4, #sprites_4, #platforms_4").show();
};
if($('a#jplayer_playlist_item_2').hasClass('jplayer_playlist_current')) {
$("#bg_1, #bg_2, #map_2, #sprites_2, #bg_3, #bg_4, #map_4, #sprites_4, #platforms_4, #bg_7, #bg_8, #map_8, #sprites_8, #behindsprites_8").hide();
$("#bg_5, #bg_6, #map_6, #sprites_6").show();
};
if($('a#jplayer_playlist_item_3').hasClass('jplayer_playlist_current')) {
$("#bg_1, #bg_2, #map_2, #sprites_2, #bg_3, #bg_4, #map_4, #sprites_4, #platforms_4, #bg_5, #bg_6, #map_6, #sprites_6").hide();
$("#bg_7, #bg_8, #map_8, #sprites_8, #behindsprites_8").show();
};
}, 1); // checks every millisecond (i.e. 1/1000 of a second)
// need to do speed tests, and see if fast checking results in bogged down pages, difference between 1 millisecond and even 100-300 are nearly negligible
setInterval(function() {
if ($.cookie('autoPlay') === 'no') {
displayPlayList();
playListInit(false); // Parameter is a boolean for autoplay.
}
}, 1); // checks every millisecond (i.e. 1/1000 of a second)
// need to do speed tests, and see if fast checking results in bogged down pages, difference between 1 millisecond and even 100-300 are nearly negligible
setInterval(function() {
if ($.cookie('autoPlay') === 'yes') {
displayPlayList();
playListInit(true); // Parameter is a boolean for autoplay.
}
}, 1); // checks every millisecond (i.e. 1/1000 of a second)
// need to do speed tests, and see if fast checking results in bogged down pages, difference between 1 millisecond and even 100-300 are nearly negligible
/*
$('#jquery_jplayer')
playListInit(true)
*/
$('#infobutton').click(function() {
$('#music_descrip').dialog('open');
} );
$('#music_descrip').dialog({
title: '<img src="/images/text/text_mario_planet_jukebox.png" id="text_mario_planet_jukebox"/>',
autoOpen: false,
height: 375,
width: 500,
modal: true,
resizable: false,
buttons: {
'Without Music': function() {
$(this).dialog('close');
$.cookie('autoPlay', 'no', { expires: 365 * 10 });
},
'With Music': function() {
$(this).dialog('close');
$.cookie('autoPlay', 'yes', { expires: 365 * 10 });
}
}
});
});
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它似乎仍然有同样的问题.. 我正在努力解决它，但如果您在我之前发现错误，请告诉我！:)