以下是破解的过程:
- 点击音符符号
- 点击展开/折叠全部
- 点击音符符号
- 点击展开/折叠全部
- 再次点击展开/折叠全部
请注意,即使在函数中的逻辑表明所有面板都关闭且应该打开,音符符号仍然不会重新打开。为什么?我做错了什么?
HTML:
<button class="btn btn-default btn-sm btn-exp" id="expandAllFormats">Expand/Collapse All</button>
<div class="panel-group checkbox-group" id="accordionFormat" role="tablist" aria-multiselectable="true">
<div class="panel panel-default">
<div class="panel-heading" role="tab">
<h4 class="panel-title">
<a id="accordionformatText" role="button" data-toggle="collapse" data-parent="#accordionFormat" href="#formatText">
<i class="fa fa-chevron-circle-right" aria-hidden="true"></i> Text
</a>
</h4>
</div>
<div id="formatText" class="panel-collapse collapse" role="tabpanel">
<div class="panel-body">ALPHA</div>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading" role="tab">
<h4 class="panel-title">
<a id="accordionformatArt" class="collapsed" role="button" data-toggle="collapse" data-parent="#accordionFormat" href="#formatArt">
<i class="fa fa-chevron-circle-right" aria-hidden="true"></i> Art
</a>
</h4>
</div>
<div id="formatArt" class="panel-collapse collapse" aria-expanded="false" role="tabpanel">
<div class="panel-body">BETA</div>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading" role="tab">
<h4 class="panel-title">
<a id="accordionformatAudio" class="collapsed" role="button" data-toggle="collapse" data-parent="#accordionFormat" href="#formatAudio">
<i class="fa fa-chevron-circle-right" aria-hidden="true"></i> Audio
</a>
</h4>
</div>
<div id="formatAudio" class="panel-collapse collapse" role="tabpanel">
<div class="panel-body">GAMMA</div>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading" role="tab">
<h4 class="panel-title">
<a id="accordionformatNotation" class="collapsed" role="button" data-toggle="collapse" data-parent="#accordionFormat" href="#formatNotation">
<i class="fa fa-chevron-circle-right" aria-hidden="true"></i> Music Notation
</a>
</h4>
</div>
<div id="formatNotation" class="panel-collapse collapse" role="tabpanel">
<div class="panel-body">DELTA</div>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading" role="tab">
<h4 class="panel-title">
<a id="accordionformatVideo" class="collapsed" role="button" data-toggle="collapse" data-parent="#accordionFormat" href="#formatVideo">
<i class="fa fa-chevron-circle-right" aria-hidden="true"></i> Video
</a>
</h4>
</div>
<div id="formatVideo" class="panel-collapse collapse" role="tabpanel">
<div class="panel-body">EPSILON</div>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading" role="tab">
<h4 class="panel-title">
<a id="accordionformatInteractive" class="collapsed" role="button" data-toggle="collapse" data-parent="#accordionFormat" href="#formatInteractive">
<i class="fa fa-chevron-circle-right" aria-hidden="true"></i> Digital Interactive
</a>
</h4>
</div>
<div id="formatInteractive" class="panel-collapse collapse" role="tabpanel">
<div class="panel-body">ZETA</div>
</div>
</div>
</div>
JS:
var toggleFormat = false;
$('#expandAllFormats').on('click', function(e) {
e.preventDefault();
console.log(toggleFormat);
$("#accordionFormat .panel-collapse").each(function(index, value){
if (toggleFormat){
if($(this).hasClass('in')){
$(this).collapse('toggle');
console.log("This panel is open. it will be closed");
} else {
console.log("This panel is closed. it will stay closed");
}
} else {
if(!$(this).hasClass('in')){
$(this).collapse('toggle');
console.log("This panel is closed. it will be open");
} else {
console.log("This panel is open. it will stay open");
}
}
});
toggleFormat = toggleFormat ? false : true;
});