275 lines
8.5 KiB
JavaScript
275 lines
8.5 KiB
JavaScript
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$(function() {
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'use strict';
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var console = window.console || { log: function() {} };
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var URL = window.URL || window.webkitURL;
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var $image = $('#image');
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var $download = $('#download');
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var $dataX = $('#dataX');
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var $dataY = $('#dataY');
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var $dataHeight = $('#dataHeight');
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var $dataWidth = $('#dataWidth');
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var $dataRotate = $('#dataRotate');
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var $dataScaleX = $('#dataScaleX');
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var $dataScaleY = $('#dataScaleY');
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var options = {
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aspectRatio: 16 / 9,
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preview: '.img-preview',
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crop: function(e) {
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$dataX.val(Math.round(e.detail.x));
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$dataY.val(Math.round(e.detail.y));
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$dataHeight.val(Math.round(e.detail.height));
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$dataWidth.val(Math.round(e.detail.width));
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$dataRotate.val(e.detail.rotate);
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$dataScaleX.val(e.detail.scaleX);
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$dataScaleY.val(e.detail.scaleY);
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}
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};
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var originalImageURL = $image.attr('src');
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var uploadedImageName = 'cropped.jpg';
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var uploadedImageType = 'image/jpeg';
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var uploadedImageURL;
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// Tooltip
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$('[data-toggle="tooltip"]').tooltip();
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// Cropper
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$image.on({
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ready: function(e) {
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console.log(e.type);
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},
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cropstart: function(e) {
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console.log(e.type, e.detail.action);
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},
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cropmove: function(e) {
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console.log(e.type, e.detail.action);
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},
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cropend: function(e) {
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console.log(e.type, e.detail.action);
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},
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crop: function(e) {
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console.log(e.type);
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},
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zoom: function(e) {
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console.log(e.type, e.detail.ratio);
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}
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}).cropper(options);
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// Buttons
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if (!$.isFunction(document.createElement('canvas').getContext)) {
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$('button[data-method="getCroppedCanvas"]').prop('disabled', true);
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}
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if (typeof document.createElement('cropper').style.transition === 'undefined') {
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$('button[data-method="rotate"]').prop('disabled', true);
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$('button[data-method="scale"]').prop('disabled', true);
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}
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// Download
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if (typeof $download[0].download === 'undefined') {
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$download.addClass('disabled');
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}
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// Options
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$('.docs-toggles').on('change', 'input', function() {
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var $this = $(this);
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var name = $this.attr('name');
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var type = $this.prop('type');
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var cropBoxData;
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var canvasData;
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if (!$image.data('cropper')) {
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return;
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}
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if (type === 'checkbox') {
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options[name] = $this.prop('checked');
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cropBoxData = $image.cropper('getCropBoxData');
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canvasData = $image.cropper('getCanvasData');
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options.ready = function() {
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$image.cropper('setCropBoxData', cropBoxData);
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$image.cropper('setCanvasData', canvasData);
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};
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} else if (type === 'radio') {
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options[name] = $this.val();
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}
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$image.cropper('destroy').cropper(options);
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});
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// Methods
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$('.docs-buttons').on('click', '[data-method]', function() {
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var $this = $(this);
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var data = $this.data();
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var cropper = $image.data('cropper');
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var cropped;
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var $target;
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var result;
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if ($this.prop('disabled') || $this.hasClass('disabled')) {
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return;
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}
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if (cropper && data.method) {
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data = $.extend({}, data); // Clone a new one
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if (typeof data.target !== 'undefined') {
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$target = $(data.target);
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if (typeof data.option === 'undefined') {
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try {
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data.option = JSON.parse($target.val());
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} catch (e) {
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console.log(e.message);
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}
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}
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}
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cropped = cropper.cropped;
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switch (data.method) {
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case 'rotate':
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if (cropped && options.viewMode > 0) {
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$image.cropper('clear');
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}
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break;
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case 'getCroppedCanvas':
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if (uploadedImageType === 'image/jpeg') {
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if (!data.option) {
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data.option = {};
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}
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data.option.fillColor = '#fff';
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}
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break;
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}
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result = $image.cropper(data.method, data.option, data.secondOption);
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switch (data.method) {
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case 'rotate':
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if (cropped && options.viewMode > 0) {
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$image.cropper('crop');
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}
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break;
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case 'scaleX':
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case 'scaleY':
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$(this).data('option', -data.option);
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break;
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case 'getCroppedCanvas':
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if (result) {
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// Bootstrap's Modal
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$('#getCroppedCanvasModal').modal().find('.modal-body').html(result);
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if (!$download.hasClass('disabled')) {
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download.download = uploadedImageName;
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$download.attr('href', result.toDataURL(uploadedImageType));
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}
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}
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break;
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case 'destroy':
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if (uploadedImageURL) {
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URL.revokeObjectURL(uploadedImageURL);
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uploadedImageURL = '';
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$image.attr('src', originalImageURL);
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}
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break;
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}
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if ($.isPlainObject(result) && $target) {
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try {
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$target.val(JSON.stringify(result));
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} catch (e) {
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console.log(e.message);
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}
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}
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}
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});
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// Keyboard
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$(document.body).on('keydown', function(e) {
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if (!$image.data('cropper') || this.scrollTop > 300) {
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return;
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}
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switch (e.which) {
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case 37:
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e.preventDefault();
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$image.cropper('move', -1, 0);
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break;
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case 38:
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e.preventDefault();
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$image.cropper('move', 0, -1);
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break;
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case 39:
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e.preventDefault();
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$image.cropper('move', 1, 0);
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break;
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case 40:
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e.preventDefault();
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$image.cropper('move', 0, 1);
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break;
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}
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});
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// Import image
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var $inputImage = $('#inputImage');
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if (URL) {
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$inputImage.change(function() {
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var files = this.files;
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var file;
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if (!$image.data('cropper')) {
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return;
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}
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if (files && files.length) {
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file = files[0];
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if (/^image\/\w+$/.test(file.type)) {
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uploadedImageName = file.name;
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uploadedImageType = file.type;
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if (uploadedImageURL) {
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URL.revokeObjectURL(uploadedImageURL);
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}
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uploadedImageURL = URL.createObjectURL(file);
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$image.cropper('destroy').attr('src', uploadedImageURL).cropper(options);
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$inputImage.val('');
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} else {
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window.alert('Please choose an image file.');
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}
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}
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});
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} else {
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$inputImage.prop('disabled', true).parent().addClass('disabled');
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}
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});
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