Today we are going to implement the draggable text using HTML,CSS,JAVASCRIPT
Main thing here is to understand javascript code
- I have written all the explanation with code i.e see comments.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Image Uploader with Draggable Text</title>
<style>
body {
font-family: Arial, sans-serif;
text-align: center;
}
#image-container {
position: relative;
display: inline-block;
margin: 20px;
}
#uploaded-image {
max-width: 100%;
max-height: 400px;
}
#draggable-text {
position: absolute;
top: 50px;
left: 50px;
color: white;
background-color: rgba(0, 0, 0, 0.5);
padding: 5px 10px;
cursor: move;
font-size: 18px;
}
#text-input {
margin-top: 20px;
width: 300px;
padding: 10px;
font-size: 16px;
}
</style>
</head>
<body>
<h1>Image Uploader with Draggable Text</h1>
<!-- Image uploader -->
<input type="file" id="image-input" accept="image/*" /><br /><br />
<!-- Image and draggable text container -->
<div id="image-container">
<img
id="uploaded-image"
src=""
alt="Your uploaded image"
style="display: none"
/>
<div id="draggable-text" draggable="true">Your text here</div>
</div>
<!-- Text input for modifying the text on the image -->
<textarea
id="text-input"
placeholder="Enter text to display on image"
></textarea>
<script>
const imageInput = document.getElementById("image-input");
const uploadedImage = document.getElementById("uploaded-image");
const draggableText = document.getElementById("draggable-text");
const textInput = document.getElementById("text-input");
// Handle image upload
imageInput.addEventListener("change", function (e) {
const file = e.target.files[0]; // files is an array like object but not an array, but somehow we can access the elements of this array like object in a way we access in an array. first index number store first image,second store second and so on.
if (file) {
const reader = new FileReader(); // return a filereader object
reader.onload = function (event) {
uploadedImage.src = event.target.result; // this onload function is called automatically when file reading is complete
uploadedImage.style.display = "block";
};
reader.readAsDataURL(file); // readAsDataURL reads the file
}
});
// Update the draggable text based on textarea input
textInput.addEventListener("input", function () {
draggableText.textContent = textInput.value;
});
// Drag and Drop functionality for the text
let offsetX, offsetY;
draggableText.addEventListener("dragstart", function (e) {
const rect = draggableText.getBoundingClientRect(); // it returns an object which have position of element according to viewport and dimensions
offsetX = e.clientX - rect.left;//e.clientX is mouse dragstart horizontal position and rect.left element current horizontal position.
offsetY = e.clientY - rect.top;//e.clientY is mouse dragstart vertical position and rect.top element current vertical position.
});
document.addEventListener("dragover", function (e) {// without this the dragged element will not be drop.
e.preventDefault();
});
document.addEventListener("drop", function (e) {
e.preventDefault();
const dropX = e.clientX - offsetX;
const dropY = e.clientY - offsetY;
draggableText.style.left = `${dropX}px`;
draggableText.style.top = `${dropY}px`;
});
</script>
</body>
</html>
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