LimitLess-admin-panel/assets/js/pages/extension_image_cropper.js

/* ------------------------------------------------------------------------------
*
*  # Image Cropper extension
*
*  Specific JS code additions for extension_image_cropper.html page
*
*  Version: 1.1
*  Latest update: Jul 5, 2016
*
* ---------------------------------------------------------------------------- */

$(function() {


    // Basic setup
    // ------------------------------

    // Default initialization
    $('.crop-basic').cropper();


    // Hidden overlay
    $('.crop-modal').cropper({
        modal: false
    });


    // Fixed position
    $('.crop-not-movable').cropper({
        cropBoxMovable: false,
        data: {
            x: 75,
            y: 50,
            width: 350,
            height: 250
        }
    });


    // Fixed size
    $('.crop-not-resizable').cropper({
        cropBoxResizable: false,
        data: {
            x: 10,
            y: 10,
            width: 300,
            height: 300
        }
    });


    // Disabled autocrop
    $('.crop-auto').cropper({
        autoCrop: false 
    });


    // Disabled drag
    $('.crop-drag').cropper({
        movable: false 
    });


    // 16:9 ratio
    $('.crop-16-9').cropper({
        aspectRatio: 16/9
    });


    // 4:3 ratio
    $('.crop-4-3').cropper({
        aspectRatio: 4/3
    });


    // Minimum zone size
    $('.crop-min').cropper({
        minCropBoxWidth: 150,
        minCropBoxHeight: 150
    });


    // Disabled zoom
    $('.crop-zoomable').cropper({
        zoomable: false
    });


    
    // Demo cropper
    // ------------------------------

    // Define variables
    var $cropper = $(".cropper"),
        $image = $('#demo-cropper-image'),
        $download = $('#download'),
        $dataX = $('#dataX'),
        $dataY = $('#dataY'),
        $dataHeight = $('#dataHeight'),
        $dataWidth = $('#dataWidth'),
        $dataScaleX = $('#dataScaleX'),
        $dataScaleY = $('#dataScaleY'),
        options = {
            aspectRatio: 1,
            preview: '.preview',
            crop: function (e) {
                $dataX.val(Math.round(e.x));
                $dataY.val(Math.round(e.y));
                $dataHeight.val(Math.round(e.height));
                $dataWidth.val(Math.round(e.width));
                $dataScaleX.val(e.scaleX);
                $dataScaleY.val(e.scaleY);
            }
        };

    // Initialize cropper with options
    $cropper.cropper(options);


    //
    // Toolbar
    //

    $('.demo-cropper-toolbar').on('click', '[data-method]', function () {
        var $this = $(this),
            data = $this.data(),
            $target,
            result;

        if ($image.data('cropper') && data.method) {
            data = $.extend({}, data);

            if (typeof data.target !== 'undefined') {
                $target = $(data.target);

                if (typeof data.option === 'undefined') {
                    data.option = JSON.parse($target.val());
                }
            }

            result = $image.cropper(data.method, data.option, data.secondOption);

            switch (data.method) {
                case 'scaleX':
                case 'scaleY':
                    $(this).data('option', -data.option);
                break;

                case 'getCroppedCanvas':
                    if (result) {

                        // Init modal
                        $('#getCroppedCanvasModal').modal().find('.modal-body').html(result);

                        // Download image
                        $download.attr('href', result.toDataURL('image/jpeg'));
                    }
                break;
            }
        }
    });


    //
    // Aspect ratio
    //

    $('.demo-cropper-ratio').on('change', 'input[type=radio]', function () {
        options[$(this).attr('name')] = $(this).val();
        $image.cropper('destroy').cropper(options);
    });


    //
    // Switching modes
    //

    // Crop and clear
    var cropClear = document.querySelector('.clear-crop-switch');
    var cropClearInit = new Switchery(cropClear);
    cropClear.onchange = function() {
        if(cropClear.checked) {

            // Crop mode
            $cropper.cropper('crop');

            // Enable other options
            enableDisableInit.enable();
            destroyCreateInit.enable();
        }
        else {

            // Clear move
            $cropper.cropper('clear');

            // Disable other options
            enableDisableInit.disable();
            destroyCreateInit.disable();
        }
    };

    // Enable and disable
    var enableDisable = document.querySelector('.enable-disable-switch');
    var enableDisableInit = new Switchery(enableDisable);
    enableDisable.onchange = function() {
        if(enableDisable.checked) {

            // Enable cropper
            $cropper.cropper('enable');

            // Enable other options
            cropClearInit.enable();
            destroyCreateInit.enable();
        }
        else {

            // Disable cropper
            $cropper.cropper('disable');

            // Disable other options
            cropClearInit.disable();
            destroyCreateInit.disable();
        }
    };

    // Destroy and create
    var destroyCreate = document.querySelector('.destroy-create-switch');
    var destroyCreateInit = new Switchery(destroyCreate);
    destroyCreate.onchange = function() {
        if(destroyCreate.checked) {

            // Initialize again
            $cropper.cropper({
                aspectRatio: 1,
                preview: ".preview",
                data: {
                    x: 208,
                    y: 22
                }
            });

            // Enable other options
            cropClearInit.enable();
            enableDisableInit.enable();
        }
        else {

            // Destroy cropper
            $cropper.cropper('destroy');
            
            // Disable other options
            cropClearInit.disable();
            enableDisableInit.disable();
        }
    };


    //
    // Methods
    //

    // Get data
    $("#getData").on('click', function() {
        $("#showData1").val(JSON.stringify($cropper.cropper("getData")));
    });

    // Set data
    $("#setData").on('click', function() {
        $cropper.cropper("setData", {
            x: 291,
            y: 86,
            width: 158,
            height: 158
        });

        $("#showData1").val('Image data has been changed');
    });


    // Get container data
    $("#getContainerData").on('click', function() {
        $("#showData2").val(JSON.stringify($cropper.cropper("getContainerData")));
    });

    // Get image data
    $("#getImageData").on('click', function() {
        $("#showData2").val(JSON.stringify($cropper.cropper("getImageData")));
    });


    // Get canvas data
    $("#getCanvasData").on('click', function() {
        $("#showData3").val(JSON.stringify($cropper.cropper("getCanvasData")));
    });

    // Set canvas data
    $("#setCanvasData").on('click', function() {
        $cropper.cropper("setCanvasData", {
            left: -50,
            top: 0,
            width: 750,
            height: 750
        });

        $("#showData3").val('Canvas data has been changed');
    });


    // Get crop box data
    $("#getCropBoxData").on('click', function() {
        $("#showData4").val(JSON.stringify($cropper.cropper("getCropBoxData")));
    });

    // Set crop box data
    $("#setCropBoxData").on('click', function() {
        $cropper.cropper("setCropBoxData", {
            left: 395,
            top: 68,
            width: 183,
            height: 183
        });

        $("#showData4").val('Crop box data has been changed');
    });

});