Custom code for JetFormBuilder, designed to allow users to crop images.

gistfile1.txt

UPDATED :
A new functionality for generating unique filenames for each cropped image 


1. I've developed a new custom code for JetFormBuilder, designed to allow users to crop images. 
I'm excited to share it with the group, making it accessible to most members here.

2. To begin, you'll need to create four fields: two media fields and two hidden fields. It's convenient to use the same 
field names across these, so there's no need to modify the custom code.

3. An important aspect I didn’t cover in the video is setting the media field as the post thumbnail and configuring 
the gallery field as a Meta field. This is done in the 'Post Submit Actions' under 'Insert/Update Post' in the FIELDS MAP section.

4. I have included CSS custom code in the provided link to help you style and customize the media field

5. Lastly, it’s crucial to enable CSRF protection for enhanced security.

If you want to see the video, visit the Crocoblock community group in Facebook.


CSS code:
/* Style and customize the media field */
.jet-form-builder__field-wrap.jet-form-builder-file-upload {
    border-radius: 10px !important;
    border-style: dashed !important;
    border-width: 2px !important;
    border-color: #69727d !important;
    padding: 10px !important;
}




Custom code ( PHP snippet, all in one )


function enqueue_cropperjs_scripts() {
    wp_enqueue_script('jquery');
    wp_enqueue_script('cropperjs', 'https://cdnjs.cloudflare.com/ajax/libs/cropperjs/1.5.9/cropper.min.js', array('jquery'), '1.5.9', true);
    wp_enqueue_style('cropperjs-css', 'https://cdnjs.cloudflare.com/ajax/libs/cropperjs/1.5.9/cropper.min.css', array(), '1.5.9', 'all');
}

add_action('wp_enqueue_scripts', 'enqueue_cropperjs_scripts');

function add_custom_cropperjs_javascript() {
    ?>
    <script type="text/javascript">
        jQuery(document).ready(function($) {
            var croppers = {};
            var galleryCroppers = [];
            var maxGalleryFiles = 2; // Maximum files allowed for gallery_field
            var maxMediaFiles = 1; // Maximum files allowed for media_field_upload

            function generateUniqueFilename(prefix) {
                var timestamp = new Date().getTime();
                var randomNum = Math.floor(Math.random() * 1000);
                return prefix + '_' + timestamp + '_' + randomNum + '.jpg';
            }

            function setupCropper(fieldId, previewIdBase, buttonName) {
                $('#' + fieldId).change(function(event) {
                    var files = event.target.files;
                    var fileCount = (fieldId === 'gallery_field') ? galleryCroppers.length : (croppers[fieldId] ? 1 : 0);

                    if ((fieldId === 'gallery_field' && fileCount + files.length > maxGalleryFiles) ||
                        (fieldId === 'media_field_upload' && fileCount + files.length > maxMediaFiles)) {
                        alert('You can only upload a maximum of ' + (fieldId === 'gallery_field' ? maxGalleryFiles : maxMediaFiles) + ' image(s).');
                        this.value = ''; // Clear the selected files
                        return; // Stop further execution
                    }

                    var imageContainer = $('#' + fieldId).siblings('.image-container');
                    if (imageContainer.length === 0) {
                        imageContainer = $('<div class="image-container"></div>'); // Create a container for all images
                        $('#' + fieldId).after(imageContainer); // Append the container after the input field
                    }

                    $.each(files, function(index, file) {
                        if (!file.type.match('image.*')) {
                            alert('Invalid file type. Please select an image.');
                            return true;
                        }

                        var fileReader = new FileReader();
                        var previewId = previewIdBase + fileCount + index;

                        fileReader.onload = function(e) {
                            var imagePreview = $('<img id="' + previewId + '" class="gallery-image">');
                            imagePreview.attr('src', e.target.result);

                            var imagePreviewContainer = $('<div class="gallery-image-container"></div>');
                            imagePreviewContainer.append(imagePreview);
                            imageContainer.append(imagePreviewContainer);

                            imagePreview.show();

                            if (fieldId === 'gallery_field') {
                                galleryCroppers.push(new Cropper(imagePreview[0], {
                                    aspectRatio: 600 / 400,
                                    viewMode: 1
                                }));
                            } else if (fieldId === 'media_field_upload') {
                                if (croppers[fieldId]) {
                                    croppers[fieldId].destroy();
                                }
                                croppers[fieldId] = new Cropper(imagePreview[0], {
                                    aspectRatio: 1,
                                    viewMode: 1
                                });
                            }
                        };

                        fileReader.readAsDataURL(file);
                    });

                    $('input[name="' + buttonName + '"]').attr('type', 'button').val('Crop Images').show();
                });
            }

            setupCropper('media_field_upload', 'mediaImagePreview', 'crop_button');
            setupCropper('gallery_field', 'galleryImagePreview', 'crop_button_gallery');

            $(document).on('click', 'input[name="crop_button"]', function() {
                if (croppers['media_field_upload']) {
                    croppers['media_field_upload'].getCroppedCanvas({
                        width: 300,
                        height: 300
                    }).toBlob(function(blob) {
                        var uniqueFilename = generateUniqueFilename('croppedImage');
                        var newFile = new File([blob], uniqueFilename, {type: 'image/jpeg'});
                        var dataTransfer = new DataTransfer();
                        dataTransfer.items.add(newFile);
                        $('#media_field_upload')[0].files = dataTransfer.files;
                    }, 'image/jpeg');
                }
                $(this).hide();
            });

            $(document).on('click', 'input[name="crop_button_gallery"]', function() {
                var dataTransfer = new DataTransfer();
                $.each(galleryCroppers, function(index, cropper) {
                    if (cropper) {
                        cropper.getCroppedCanvas({
                            width: 600,
                            height: 400
                        }).toBlob(function(blob) {
                            var uniqueFilename = generateUniqueFilename('croppedGalleryImage_' + index);
                            var newFile = new File([blob], uniqueFilename, {type: 'image/jpeg'});
                            dataTransfer.items.add(newFile);

                            if (index === galleryCroppers.length - 1) {
                                $('#gallery_field')[0].files = dataTransfer.files;
                            }
                        }, 'image/jpeg');
                    }
                });
                $(this).hide();
            });
        });
    </script>
    <?php
}

add_action('wp_footer', 'add_custom_cropperjs_javascript');

Hi Qubadi!
Very useful code! I really need that feature.
But I find it needs two more critical adjustments:
1- It's important that the Cropper will one the new photos being added and NOT also the preset photos. It destroy already cropped images.
2-In order to re-crop an image, it will be good to have icon on the preview image (like the remove icon) that will trigger cropper ONLY on that image.

For 2, I started with this:
// Add edit icon to already added files $('.jet-form-builder-file-upload__file').each(function(index, element) { var fileName = $(this).find('.jet-form-builder-file-upload__value').val().split('/').pop(); var editIcon = $('<div class="edit-icon" data-file-name="' + fileName + '"><i class="fa fa-pencil"></i></div>'); $(this).append(editIcon); });

But i got no idea how to make the edit icon to trigger the cropper only on the relevant image.

Hope you can help with this.

liranop

Hello

I will add your request to my list. Thank u

Hi, can you please list the name of the 4 fields. I can not figure out the name for those 2 hidden fields by the script.
Thanks in advance.

Edit:
If someone else needs to know:
Those hidden fields are for the crop button names.
crop_button
crop_button_gallery
Below the image upload for the button to show up after an image is selected.

This script does a force crop where the script below does an optional crop. I need the force crop. As the author states below, the other script is better, I will play around with it, but for now this script is working for me.

Thanks for the movie, but I can not watch it without a Facebook account...

Thanks for the script, as I have been looking for this for a while!

Hi, can you please list the name of the 4 fields. I can not figure out the name for those 2 hidden fields by the script. Thanks in advance.

Hello
High recommend u to use the new one, with new update and functionality: https://gist.github.com/Qubadi/b918070aaf15f1e48b0b2ad9baeeb117

U can watch the short video here too: https://www.facebook.com/groups/CrocoblockCommunity/permalink/8671587339599277/?mibextid=rS40aB7S9Ucbxw6v