我正在尝试创建一个强大的拖放事件调度程序。我几乎已经完成了所有内容，但卡在一个元素上：如何拖动项目的副本。
您可以在这里看到当前运行的版本：jsfiddle
我希望能够发生的是：
任何帮助将不胜感激。
另外，这是我当前的代码：
HTML：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Sortable Event Scheduler</title>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,300;1,400;1,500;1,600;1,700;1,800&display=swap" rel="stylesheet">
<link rel="stylesheet" href="css/styles.css">
</head>
<body>
<div class="container">
<div class="column" id="events">
<div class="column-header">Events</div>
<ul class="sortable-list">
<li class="event" data-duration="00:15:00">
<div class="event-title">Welcome</div>
<div class="event-start-time"></div>
<div class="event-duration">Duration: 00:15:00</div>
<div class="event-end-time"></div>
</li>
<li class="event lead-in-event leadin-event" id="leadIn" data-duration="00:01:00" data-event-type="">
<div class="event-title">LeadIn</div>
<div class="event-start-time" style="display: none;"></div>
<div class="event-duration" style="display: none;">Duration: 00:01:00</div>
<div class="event-end-time" style="display: none;"></div>
</li>
<li class="event" data-duration="00:05:10">
<div class="event-title">Film 1</div>
<div class="event-start-time"></div>
<div class="event-duration">Duration: 00:05:10</div>
<div class="event-end-time"></div>
</li>
<li class="event" data-duration="00:09:40">
<div class="event-title">Film 2</div>
<div class="event-start-time"></div>
<div class="event-duration">Duration: 00:09:40</div>
<div class="event-end-time"></div>
</li>
</ul>
</div>
<div class="column" id="friday-screen-1" data-start-time="18:00:00">
<div class="column-header">Friday - Screen 1</div>
<ul class="sortable-list">
<!-- Add events here -->
</ul>
<div class="column-total-duration"></div>
</div>
<div class="column" id="saturday-screen-1" data-start-time="08:30:00">
<div class="column-header">Saturday - Screen 1</div>
<ul class="sortable-list">
<!-- Add events here -->
</ul>
<div class="column-total-duration"></div>
</div>
<div class="column" id="saturday-screen-2" data-start-time="08:30:00">
<div class="column-header">Saturday - Screen 2</div>
<ul class="sortable-list">
<!-- Add events here -->
</ul>
<div class="column-total-duration"></div>
</div>
<div class="column" id="sunday-screen-1" data-start-time="08:30:00">
<div class="column-header">Sunday - Screen 1</div>
<ul class="sortable-list">
<!-- Add events here -->
</ul>
<div class="column-total-duration"></div>
</div>
<div class="column" id="sunday-screen-2" data-start-time="08:30:00">
<div class="column-header">Sunday - Screen 2</div>
<ul class="sortable-list">
<!-- Add events here -->
</ul>
<div class="column-total-duration"></div>
</div>
</div>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui-touch-punch/0.2.3/jquery.ui.touch-punch.min.js"></script>
<script src="js/moment.js"></script>
<script src="js/script.js"></script>
</body>
</html>
CSS:
body {
font-family: 'Open Sans', sans-serif;
font-size: 14px;
}
.container {
display: flex;
justify-content: space-between;
align-items: flex-start;
padding: 20px;
}
.column {
width: calc(16.666% - 10px); /* Equal width for 6 columns with 10px gap */
border: 1px solid #ddd;
padding: 10px;
}
.column-header {
font-weight: bold;
margin-bottom: 10px;
}
.sortable-list {
list-style: none;
padding: 0;
min-height: 50px;
}
.event {
background-color: #3498db;
color: white;
padding: 5px;
margin: 5px 0;
cursor: pointer;
}
.event-duration, .event-start-time, .event-end-time {
font-size: 12px;
}
.event-placeholder {
background-color: #ddd;
height: 20px;
margin: 5px 0;
}
.event-title {
font-weight: bold;
}
.total-duration {
color: #666;
font-size: 12px;
}
JAVASCRIPT:
$(document).ready(function () {
// Call the sort function on page load to alphabetize the Events column
sortEventsInEventsColumn();
$(function() {
$(".sortable-list").sortable({
connectWith: ".sortable-list",
placeholder: "event-placeholder",
receive: function (event, ui) {
var $targetColumn = $(this).closest(".column");
if ($targetColumn.attr("id") !== "events") {
// Recalculate start and end times for the entire column
recalculateColumnTimes($targetColumn);
// Update total duration for the target column
updateTotalDuration($targetColumn);
} else {
// Clear start and end times for the dragged event item
updateEventTimes(ui.item, "", "");
}
// Sort events in the Events column
sortEventsInEventsColumn();
},
update: function (event, ui) {
var $targetColumn = $(this).closest(".column");
if ($targetColumn.attr("id") !== "events") {
// Recalculate start and end times for the entire column
recalculateColumnTimes($targetColumn);
// Update total duration for the target column
updateTotalDuration($targetColumn);
} else {
// Clear start and end times for the moved event item
updateEventTimes(ui.item, "", "");
}
// Sort events in the Events column
sortEventsInEventsColumn();
},
remove: function (event, ui) {
var $sourceColumn = $(this).closest(".column");
if ($sourceColumn.attr("id") !== "events") {
// Recalculate start and end times for the entire column
recalculateColumnTimes($sourceColumn);
// Update total duration for the source column
updateTotalDuration($sourceColumn);
}
// Sort events in the Events column
sortEventsInEventsColumn();
}
}).disableSelection();
});
function recalculateColumnTimes($column) {
var $events = $column.find(".event");
var startTime = $column.data("start-time");
$events.each(function (index) {
var $event = $(this);
var duration = $event.data("duration");
var endTime = calculateEndTime(startTime, duration);
// Update start and end times for the event
updateEventTimes($event, "Start: " + formatTimeAMPM(startTime), "End: " + formatTimeAMPM(endTime));
// Update startTime for the next event
startTime = endTime;
});
}
function updateEventTimes($event, startTime, endTime) {
$event.find(".event-start-time").text(startTime);
$event.find(".event-end-time").text(endTime);
}
function calculateEndTime(startTime, duration) {
var start = moment(startTime, "HH:mm:ss");
var dur = moment.duration(duration);
var end = start.clone().add(dur);
return end.format("HH:mm:ss");
}
function formatTimeAMPM(time) {
return moment(time, "HH:mm:ss").format("h:mm:ss A");
}
function sortEventsInEventsColumn() {
var $eventsColumn = $("#events");
var $eventList = $eventsColumn.find(".sortable-list");
var events = $eventList.children(".event").get();
events.sort(function (a, b) {
var titleA = $(a).find(".event-title").text();
var titleB = $(b).find(".event-title").text();
// Move the "LeadIn" event to the top of the list
if (titleA === "LeadIn") {
return -1; // "LeadIn" comes before other events
} else if (titleB === "LeadIn") {
return 1; // Other events come after "LeadIn"
}
// Sort other events alphabetically
return titleA.localeCompare(titleB);
});
$.each(events, function (index, event) {
$eventList.append(event);
});
}
function updateTotalDuration($column) {
var $eventList = $column.find(".sortable-list");
var totalDuration = moment.duration();
$eventList.find(".event").each(function () {
var duration = moment.duration($(this).data("duration"));
totalDuration.add(duration);
});
var formattedTotalDuration = formatDuration(totalDuration);
$column.find(".column-total-duration").text("Total Duration: " + formattedTotalDuration);
}
function formatDuration(duration) {
var hours = duration.hours();
var minutes = duration.minutes();
return hours + "h " + minutes + "m";
}
});
灵感来自 https://jqueryui.com/draggable/#sortable（结合排序和拖动的示例）：jsFiddle
$(".sortable-list").sortable({
connectWith: ".sortable-list",
placeholder: "event-placeholder",
items: "> :not('#leadIn')",
receive: function (event, ui) {
var $targetColumn = $(this).closest(".column");
if (ui.item.hasClass("lead-in-event")) {
if ($targetColumn.attr("id") === "events") {
ui.item.remove();
} else {
ui.item.siblings(".lead-in-event").remove();
}
}
$("#leadIn").draggable({
connectToSortable: ".column:not(#events) .sortable-list:not(:has(.lead-in-event))",
helper: "clone"
});
未定义将 LeadIn 事件从屏幕列拖动到已包含 LeadIn 事件的另一个屏幕列时会发生什么。此实现从源屏幕列中删除了 LeadIn 事件。
注意：此实现不会尝试更新时间簿记代码。