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(function () {
function updateCoords(c) {
var $element = this.$el;
var factor = this.zoomFactor;
$element.find('input[data-attr="x"]').val(c.x * factor);
$element.find('input[data-attr="y"]').val(c.y * factor);
$element.find('input[data-attr="w"]').val(c.w * factor);
$element.find('input[data-attr="h"]').val(c.h * factor);
}
function inputChange() {
var input = this;
var $el = $(this).closest('div.dcorpbox');
var id = $el.attr('id');
var imgId = id + '-img';
var opts = $el.data('dCropBox');
if (input.files && input.files[0]) {
if (opts.api) {
opts.api.destroy();
}
$el.children('div.container').html(opts.imgTemplate);
var reader = new FileReader();
reader.onload = function (e) {
$el.trigger('beforeLoadFile');
$el.find('input[data-attr="x"]').val('');
var $img = $('#' + imgId);
$img.attr('src', e.target.result);
var img = new Image();
img.onload = function () {
if ((opts.minWidth && img.width < opts.minWidth) ||
(opts.minHeight && img.width < opts.minHeight)) {
alert(opts.toSmallMsg);
return;
}
var factor = img.width / $img.width();
var params = {
onSelect: updateCoords,
};
var selection;
if (opts.minWidth || opts.minHeight) {
var minW = opts.minWidth / factor;
var minH = opts.minHeight / factor;
selection = [0, 0, minW, minH];
params = $.extend({}, params, {
minSize: [minW, minH],
});
}
opts.api = $.Jcrop('#' + imgId, $.extend({}, params, {
aspectRatio: opts.aspectRatio,
}, opts.jcrop || {}));
opts.api.$el = $el;
opts.api.zoomFactor = factor;
if (selection){
opts.api.setSelect(selection);
}
$el.trigger('afterLoadFile');
}
img.src = e.target.result;
}
reader.readAsDataURL(input.files[0]);
}
}
var methods = {
init: function (options) {
return this.each(function () {
var $this = $(this);
var opts = $.extend({}, defaults, options || {});
if (opts.minWidth && opts.minHeight == undefined) {
opts.minHeight = opts.minWidth / opts.aspectRatio;
} else if (opts.minHeight && opts.minWidth == undefined) {
opts.minWidth = opts.minHeight * opts.aspectRatio;
}
if(opts.button){
$(opts.button).click(function (){
methods.selectFile.call($this);
});
}
$this.data('dCropBox', opts);
$this.children(':input.file-input').change(inputChange);
});
},
selectFile: function () {
return this.each(function () {
$(this).children(':input.file-input').trigger('click');
});
}
}
var defaults = {
aspectRatio: 1,
toSmallMsg: 'Image to small',
}
$.fn.dCropBox = function (method) {
if (methods[method]) {
return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
} else if (typeof method === 'object' || !method) {
return methods.init.apply(this, arguments);
} else {
$.error('Method ' + method + ' does not exist on jQuery.dCropBox');
return false;
}
}
})();
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