XH_Digital_Management/static/js/pages/page-croper.js

299 lines
8.5 KiB
JavaScript

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