<header>
  <h2 class="title">drag (HTML Event)</h2>
  <p class="description">Спрацьовує, коли користувач перетягує елемент на веб-сторінці.</p>
</header>
<main>
  <div class="result">
    <div class="task-container">
      <div id="taskList" class="task-list">
        <h3>Завдання</h3>
        <div class="task-item" draggable="true">Задача 1</div>
        <div class="task-item" draggable="true">Задача 2</div>
        <div class="task-item" draggable="true">Задача 3</div>
      </div>
      <div id="inProgress" class="task-list">
        <h3>В процесі</h3>
      </div>
      <div id="completed" class="task-list">
        <h3>Виконано</h3>
      </div>
    </div>
    <button id="clearButton">Очистити "Виконано"</button>
  </div>
</main>

body {
  font-size: 16px;
  line-height: 1.5;
  font-family: monospace;
}

header {
  background-color: #f1f1f1;
  margin-bottom: 25px;
  padding: 15px;
  -webkit-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  -moz-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
}

header h2.title {
  padding-bottom: 15px;
  border-bottom: 1px solid #999;
}

header p.description {
  font-style: italic;
  color: #222;
}

.result {
  background-color: #f8f8f8;
  padding: 15px;
  -webkit-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  -moz-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
}

.task-container {
  display: flex;
  justify-content: space-between;
}

.task-list {
  width: 30%;
  padding: 10px;
  border: 2px dashed #007bff;
  min-height: 200px;
}

.task-list h3 {
  text-align: center;
}

.task-item {
  padding: 10px;
  margin: 5px 0;
  background-color: #e0e0e0;
  cursor: move;
}

.task-item:hover {
  background-color: #d0d0d0;
}

button {
  margin-top: 15px;
  padding: 10px 20px;
  background-color: #e74c3c;
  color: white;
  border: none;
  cursor: pointer;
  font-size: 16px;
}

button:hover {
  background-color: #c0392b;
}

document.addEventListener('DOMContentLoaded', function() {
  const tasks = document.querySelectorAll('.task-item');
  const taskLists = document.querySelectorAll('.task-list');
  const clearButton = document.getElementById('clearButton');

  tasks.forEach(task => {
    task.addEventListener('dragstart', function(event) {
      event.dataTransfer.setData('text/plain', event.target.id);
      event.dataTransfer.setData('taskContent', event.target.textContent);
    });
  });

  taskLists.forEach(list => {
    list.addEventListener('dragover', function(event) {
      event.preventDefault();
      list.style.backgroundColor = '#f0f0f0';
    });

    list.addEventListener('dragleave', function() {
      list.style.backgroundColor = '#ffffff';
    });

    list.addEventListener('drop', function(event) {
      event.preventDefault();
      list.style.backgroundColor = '#ffffff';
      const taskContent = event.dataTransfer.getData('taskContent');
      const newTask = document.createElement('div');
      newTask.textContent = taskContent;
      newTask.className = 'task-item';
      newTask.setAttribute('draggable', 'true');
      list.appendChild(newTask);
      
      newTask.addEventListener('dragstart', function(event) {
        event.dataTransfer.setData('text/plain', event.target.id);
        event.dataTransfer.setData('taskContent', event.target.textContent);
      });
    });
  });

  clearButton.addEventListener('click', function() {
    const completedList = document.getElementById('completed');
    completedList.innerHTML = '<h3>Виконано</h3>';
  });
});

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.