Jetformbuilder customize the Choose File and drag-and-drop of images

gistfile1.txt

UPDATED: 04.11.2024
Copy the following HTML code and create a HTML snippet using your snippet plugins. 
Paste the code into the plugin and save it.

Don't forget to add MIME types (image formats), for example, PNG and JPEG, in the media field where it shows 'Allow MIME types.
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<style>
/* Custom styles for the file upload field */
.jet-form-builder__field-wrap.jet-form-builder-file-upload {
    background: #ecf6ff !important;
    border: 3px dashed #c7d4e1 !important;
    padding: 20px !important;
    text-align: center;
    position: relative;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    border-radius: 6px !important;
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

/* Styles for the image upload */
.jet-form-builder-file-upload__file img {
    display: block;
    width: 100%;
    height: 100% !important;
    padding: 0;
    margin: 0;
    -o-object-fit: cover;
    object-fit: cover;
    -o-object-position: center center;
    object-position: center center;
    border-radius: 6px !important;
    box-shadow: 0 0 30px -8px rgba(0, 0, 0, 0.24) !important;
}

/* Styles for image content */
.jet-form-builder-file-upload__content {
    min-height: auto !important;
}

/* Styles for the custom "Choose File" and "File Uploaded" buttons */
.addfile {
    padding: 10px 20px;
    background-color: #0037fd !important;
    color: #ffffff !important;
    border: none !important;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 6px;
    margin-top: 10px;
}

.addfile:hover {
    background-color: #000000 !important;
    color: #ffffff !important;
}

/* Styles for the label that shows file upload status */
.labeladdfile {
    padding: 6px 12px;
    background-color: transparent;
    color: #000000 !important;
    font-size: 12px;
    font-weight: 400;
    display: block;
    margin-top: 10px;
    border-radius: 6px;
}

/* Class added when files are uploaded */
.files-uploaded {
    background-color: #09b872 !important; 
    padding: 6px 12px;
    color: #ffffff !important;
    border-radius: 6px;
}

/* Hide the default file input visually */
.jet-form-builder-file-upload__input {
    display: none;
}

/* Drag and drop hover effect */
.jet-form-builder__field-wrap.jet-form-builder-file-upload.dragover {
    border-color: #0037fd !important;
    background: rgba(0, 55, 253, 0.1) !important;
}

/* New styles for drag and drop text and icon */
.drag-drop-text {
    font-size: 30px;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: opacity 0.3s ease, height 0.3s ease;
    height: auto;
}

.drag-drop-text.hidden {
    opacity: 0;
    height: 0;
    overflow: hidden;
}

.drag-drop-text .icon {
    font-size: 24px;
    margin-bottom: 10px;
}

.allowed-mime-types {
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
    transition: opacity 0.3s ease, height 0.3s ease;
    height: auto;
}

.allowed-mime-types.hidden {
    opacity: 0;
    height: 0;
    overflow: hidden;
}

.allowed-mime-types .formats {
    font-weight: bold;
}

.or-text {
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
    transition: opacity 0.3s ease, height 0.3s ease;
    height: auto;
}

.or-text.hidden {
    opacity: 0;
    height: 0;
    overflow: hidden;
}

/* Responsive adjustments */
@media (max-width: 767px) {
    .addfile, .labeladdfile {
        padding: 8px 16px;
        font-size: 12px;
    }
}

@media (max-width: 1024px) {
    .addfile, .labeladdfile {
        padding: 8px 16px;
        font-size: 12px;
    }
}
</style>

<script>
document.addEventListener('DOMContentLoaded', function() {
    const { addAction } = window.JetPlugins.hooks;

    addAction('jet.fb.input.makeReactive', 'set-upload-labels', function(input) {
        if (!input?.nodes?.length || !input.nodes[0].classList.contains('jet-form-builder-file-upload__input')) {
            return;
        }

        const $ = jQuery;
        const upload = $(input.nodes[0]);
        const fields = $(input.nodes[0].closest('.jet-form-builder-file-upload__fields'));

        // Extract allowed MIME types from the input element and format them
        let mimeTypes = upload.attr('accept').split(',').map(type => type.split('/')[1].trim());

        if (!fields.find('.addfile').length) {
            fields.prepend(`
                <div class="drag-drop-text">
                    <i class="fas fa-file-upload icon"></i>
                    Drag and drop your files here
                </div>
                <div class="allowed-mime-types">Files supported: <span class="formats">${mimeTypes.join(', ')}</span></div>
                <div class="or-text">OR</div>
            `);
            fields.append(`<input type="button" class="addfile" value="Choose File"/>`);
            fields.append(`<div class="labeladdfile"></div>`);
        }

        const labelAdd = fields.find('.labeladdfile');
        const buttonAdd = fields.find('.addfile');
        const dragDropText = fields.find('.drag-drop-text');
        const allowedMimeText = fields.find('.allowed-mime-types');
        const orText = fields.find('.or-text');

        upload.css('display', 'none');
        
        buttonAdd.click(function() {
            upload.trigger('click');
        });
        
        input.value.watch(function() {
            const fileCount = this.current.length;
            const fileText = fileCount > 0 ? `Uploaded files (${fileCount})` : '';
            buttonAdd.val(fileCount > 0 ? 'File Uploaded' : 'Choose File');
            labelAdd.html(fileText);
            labelAdd.toggleClass('files-uploaded', fileCount > 0);
            if (fileCount > 0) {
                dragDropText.addClass('hidden');
                allowedMimeText.addClass('hidden');
                orText.addClass('hidden');
            } else {
                dragDropText.removeClass('hidden');
                allowedMimeText.removeClass('hidden');
                orText.removeClass('hidden');
            }
        });

        const fieldWrap = fields.closest('.jet-form-builder__field-wrap.jet-form-builder-file-upload');

        fieldWrap.on('dragover', function(event) {
            event.preventDefault();
            event.stopPropagation();
            fieldWrap.addClass('dragover');
            dragDropText.addClass('hidden');
            allowedMimeText.addClass('hidden');
            orText.addClass('hidden');
        });

        fieldWrap.on('dragleave', function(event) {
            event.preventDefault();
            event.stopPropagation();
            fieldWrap.removeClass('dragover');
            if (input.value.get().length === 0) {
                dragDropText.removeClass('hidden');
                allowedMimeText.removeClass('hidden');
                orText.removeClass('hidden');
            }
        });

        fieldWrap.on('drop', function(event) {
            event.preventDefault();
            event.stopPropagation();
            fieldWrap.removeClass('dragover');
            const files = event.originalEvent.dataTransfer.files;

            // Set files to the input, trigger change event, and handle validation
            upload[0].files = files;
            const eventChange = new Event('change', { bubbles: true });
            upload[0].dispatchEvent(eventChange);

            setTimeout(() => {
                const errorMessage = $('.jet-form-builder-row.field-has-error .error-message').text().trim();
                if (errorMessage) {
                    alert(errorMessage);
                    window.location.reload();  // Reload the page when "Ok" is clicked
                    resetFileInput();  // Reset the UI if an error occurs
                }
            }, 100); // Slight delay to allow the backend to update the error message
        });

        upload.on('change', function() {
            const files = upload[0].files;
            if (!validateFiles(files)) {
                showErrorMessage();
                resetFileInput();  // Reset the UI if an error occurs
            }
        });

        function validateFiles(files) {
            const maxFileSize = 2 * 1024 * 1024;
            const maxFileCount = 2;
            let valid = true;

            if (files.length > maxFileCount) {
                valid = false;
            } else {
                Array.from(files).forEach(file => {
                    if (file.size > maxFileSize) {
                        valid = false;
                    }
                });
            }

            return valid;
        }

        function showErrorMessage() {
            const errorMessage = $('.jet-form-builder-row.field-has-error .error-message').text().trim();
            if (errorMessage) {
                alert(errorMessage);
                window.location.reload();  // Reload the page when "Ok" is clicked
            }
        }

        function resetFileInput() {
            upload.val('');               // Clear the file input
            labelAdd.html('');            // Clear label text
            buttonAdd.val('Choose File'); // Reset button to "Choose File"
            labelAdd.removeClass('files-uploaded');
            dragDropText.removeClass('hidden'); // Show drag-drop text
            allowedMimeText.removeClass('hidden');
            orText.removeClass('hidden');
            $('.jet-form-builder-file-upload__file').remove(); // Remove any displayed files
            input.value.set([]);          // Reset input value to empty
        }
    });
});
</script>

Thanks so much @Qubadi, I really appreciate your work. I'm finding your snippets super helpful and inspirational! You should be on Crocoblock's payroll 😉

U welcome :)

To information: We have included a feature that enables the display of a pop-up message in the event that the maximum file upload limit has been reached. The system will show a popup in case you try to upload more files than the allowable file count set by the backend (limited currently to 2 files) is dragged and dropped or the 'Choose File' button is used. This makes it easier to manage the limitations, as it applies to both means of upload.

Hello friendly people

I write from Lisbon (Portugal) and just stopped by to say that you are fantastic, your "codes" are a valuable help. I share what someone already said here, you should get help (€€€) from Crocoblock. True public knowledge sharing service. Big Hug Mário Freiria

Hello friendly people

I write from Lisbon (Portugal) and just stopped by to say that you are fantastic, your "codes" are a valuable help. I share what someone already said here, you should get help (€€€) from Crocoblock. True public knowledge sharing service. Big Hug Mário Freiria

Happy to hear that my codes are helpful. I create my codes completely for free, and I work independently. Follow us here—I’ll be sharing new codes and updating existing ones as I’m home and have time.