4270 lines
115 KiB
JavaScript
4270 lines
115 KiB
JavaScript
/*!
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* Cropper.js v1.3.5
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* https://github.com/fengyuanchen/cropperjs
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*
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* Copyright (c) 2015-2018 Chen Fengyuan
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* Released under the MIT license
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*
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* Date: 2018-04-15T06:20:44.574Z
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*/
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(function(global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory()
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: typeof define === 'function' && define.amd ? define(factory)
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: (global.Cropper = factory());
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}
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(
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this,
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(function() {
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'use strict';
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var IN_BROWSER = typeof window !== 'undefined';
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var WINDOW = IN_BROWSER ? window : {};
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var NAMESPACE = 'cropper';
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// Actions
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var ACTION_ALL = 'all';
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var ACTION_CROP = 'crop';
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var ACTION_MOVE = 'move';
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var ACTION_ZOOM = 'zoom';
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var ACTION_EAST = 'e';
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var ACTION_WEST = 'w';
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var ACTION_SOUTH = 's';
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var ACTION_NORTH = 'n';
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var ACTION_NORTH_EAST = 'ne';
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var ACTION_NORTH_WEST = 'nw';
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var ACTION_SOUTH_EAST = 'se';
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var ACTION_SOUTH_WEST = 'sw';
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// Classes
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var CLASS_CROP = NAMESPACE + '-crop';
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var CLASS_DISABLED = NAMESPACE + '-disabled';
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var CLASS_HIDDEN = NAMESPACE + '-hidden';
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var CLASS_HIDE = NAMESPACE + '-hide';
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var CLASS_INVISIBLE = NAMESPACE + '-invisible';
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var CLASS_MODAL = NAMESPACE + '-modal';
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var CLASS_MOVE = NAMESPACE + '-move';
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// Data keys
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var DATA_ACTION = NAMESPACE + 'Action';
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var DATA_PREVIEW = NAMESPACE + 'Preview';
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// Drag modes
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var DRAG_MODE_CROP = 'crop';
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var DRAG_MODE_MOVE = 'move';
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var DRAG_MODE_NONE = 'none';
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// Events
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var EVENT_CROP = 'crop';
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var EVENT_CROP_END = 'cropend';
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var EVENT_CROP_MOVE = 'cropmove';
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var EVENT_CROP_START = 'cropstart';
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var EVENT_DBLCLICK = 'dblclick';
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var EVENT_POINTER_DOWN = WINDOW.PointerEvent ? 'pointerdown'
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: 'touchstart mousedown';
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var EVENT_POINTER_MOVE = WINDOW.PointerEvent ? 'pointermove'
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: 'touchmove mousemove';
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var EVENT_POINTER_UP = WINDOW.PointerEvent ? 'pointerup pointercancel'
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: 'touchend touchcancel mouseup';
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var EVENT_READY = 'ready';
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var EVENT_RESIZE = 'resize';
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var EVENT_WHEEL = 'wheel mousewheel DOMMouseScroll';
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var EVENT_ZOOM = 'zoom';
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// RegExps
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var REGEXP_ACTIONS = /^(?:e|w|s|n|se|sw|ne|nw|all|crop|move|zoom)$/;
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var REGEXP_DATA_URL = /^data:/;
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var REGEXP_DATA_URL_JPEG = /^data:image\/jpeg;base64,/;
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var REGEXP_TAG_NAME = /^(?:img|canvas)$/i;
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var DEFAULTS = {
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// Define the view mode of the cropper
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viewMode : 0, // 0, 1, 2, 3
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// Define the dragging mode of the cropper
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dragMode : DRAG_MODE_CROP, // 'crop', 'move' or 'none'
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// Define the aspect ratio of the crop box
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aspectRatio : NaN,
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// An object with the previous cropping result data
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data : null,
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// A selector for adding extra containers to preview
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preview : '',
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// Re-render the cropper when resize the window
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responsive : true,
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// Restore the cropped area after resize the window
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restore : true,
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// Check if the current image is a cross-origin image
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checkCrossOrigin : true,
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// Check the current image's Exif Orientation
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// information
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checkOrientation : true,
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// Show the black modal
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modal : true,
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// Show the dashed lines for guiding
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guides : true,
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// Show the center indicator for guiding
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center : true,
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// Show the white modal to highlight the crop box
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highlight : true,
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// Show the grid background
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background : true,
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// Enable to crop the image automatically when
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// initialize
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autoCrop : true,
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// Define the percentage of automatic cropping area when
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// initializes
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autoCropArea : 0.8,
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// Enable to move the image
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movable : true,
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// Enable to rotate the image
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rotatable : true,
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// Enable to scale the image
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scalable : true,
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// Enable to zoom the image
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zoomable : true,
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// Enable to zoom the image by dragging touch
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zoomOnTouch : true,
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// Enable to zoom the image by wheeling mouse
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zoomOnWheel : true,
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// Define zoom ratio when zoom the image by wheeling
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// mouse
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wheelZoomRatio : 0.1,
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// Enable to move the crop box
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cropBoxMovable : true,
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// Enable to resize the crop box
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cropBoxResizable : true,
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// Toggle drag mode between "crop" and "move" when click
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// twice on the cropper
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toggleDragModeOnDblclick : true,
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// Size limitation
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minCanvasWidth : 0,
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minCanvasHeight : 0,
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minCropBoxWidth : 0,
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minCropBoxHeight : 0,
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minContainerWidth : 200,
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minContainerHeight : 100,
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// Shortcuts of events
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ready : null,
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cropstart : null,
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cropmove : null,
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cropend : null,
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crop : null,
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zoom : null
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};
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var TEMPLATE = '<div class="cropper-container" touch-action="none">'
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+ '<div class="cropper-wrap-box">'
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+ '<div class="cropper-canvas"></div>'
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+ '</div>'
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+ '<div class="cropper-drag-box"></div>'
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+ '<div class="cropper-crop-box">'
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+ '<span class="cropper-view-box"></span>'
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+ '<span class="cropper-dashed dashed-h"></span>'
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+ '<span class="cropper-dashed dashed-v"></span>'
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+ '<span class="cropper-center"></span>'
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+ '<span class="cropper-face"></span>'
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+ '<span class="cropper-line line-e" data-cropper-action="e"></span>'
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+ '<span class="cropper-line line-n" data-cropper-action="n"></span>'
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+ '<span class="cropper-line line-w" data-cropper-action="w"></span>'
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+ '<span class="cropper-line line-s" data-cropper-action="s"></span>'
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+ '<span class="cropper-point point-e" data-cropper-action="e"></span>'
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+ '<span class="cropper-point point-n" data-cropper-action="n"></span>'
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+ '<span class="cropper-point point-w" data-cropper-action="w"></span>'
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+ '<span class="cropper-point point-s" data-cropper-action="s"></span>'
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+ '<span class="cropper-point point-ne" data-cropper-action="ne"></span>'
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+ '<span class="cropper-point point-nw" data-cropper-action="nw"></span>'
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+ '<span class="cropper-point point-sw" data-cropper-action="sw"></span>'
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+ '<span class="cropper-point point-se" data-cropper-action="se"></span>'
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+ '</div>' + '</div>';
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var _typeof = typeof Symbol === "function"
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&& typeof Symbol.iterator === "symbol" ? function(
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obj) {
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return typeof obj;
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} : function(obj) {
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return obj && typeof Symbol === "function"
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&& obj.constructor === Symbol
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&& obj !== Symbol.prototype ? "symbol"
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: typeof obj;
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};
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var classCallCheck = function(instance, Constructor) {
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if (!(instance instanceof Constructor)) {
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throw new TypeError(
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"Cannot call a class as a function");
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}
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};
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var createClass = function() {
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function defineProperties(target, props) {
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for (var i = 0; i < props.length; i++) {
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var descriptor = props[i];
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descriptor.enumerable = descriptor.enumerable || false;
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descriptor.configurable = true;
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if ("value" in descriptor)
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descriptor.writable = true;
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Object.defineProperty(target, descriptor.key,
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descriptor);
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}
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}
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return function(Constructor, protoProps, staticProps) {
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if (protoProps)
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defineProperties(Constructor.prototype,
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protoProps);
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if (staticProps)
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defineProperties(Constructor, staticProps);
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return Constructor;
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};
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}();
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var toConsumableArray = function(arr) {
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if (Array.isArray(arr)) {
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for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++)
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arr2[i] = arr[i];
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return arr2;
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} else {
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return Array.from(arr);
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}
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};
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/**
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* Check if the given value is not a number.
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*/
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var isNaN = Number.isNaN || WINDOW.isNaN;
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/**
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* Check if the given value is a number.
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*
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* @param {*}
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* value - The value to check.
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* @returns {boolean} Returns `true` if the given value is a
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* number, else `false`.
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*/
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function isNumber(value) {
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return typeof value === 'number' && !isNaN(value);
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}
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/**
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* Check if the given value is undefined.
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*
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* @param {*}
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* value - The value to check.
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* @returns {boolean} Returns `true` if the given value is
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* undefined, else `false`.
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*/
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function isUndefined(value) {
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return typeof value === 'undefined';
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}
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/**
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* Check if the given value is an object.
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*
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* @param {*}
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* value - The value to check.
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* @returns {boolean} Returns `true` if the given value is
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* an object, else `false`.
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*/
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function isObject(value) {
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return (typeof value === 'undefined' ? 'undefined'
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: _typeof(value)) === 'object'
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&& value !== null;
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}
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var hasOwnProperty = Object.prototype.hasOwnProperty;
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/**
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* Check if the given value is a plain object.
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*
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* @param {*}
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* value - The value to check.
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* @returns {boolean} Returns `true` if the given value is a
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* plain object, else `false`.
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*/
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function isPlainObject(value) {
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if (!isObject(value)) {
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return false;
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}
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try {
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var _constructor = value.constructor;
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var prototype = _constructor.prototype;
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return _constructor
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&& prototype
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&& hasOwnProperty.call(prototype,
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'isPrototypeOf');
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} catch (e) {
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return false;
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}
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}
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/**
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* Check if the given value is a function.
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*
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* @param {*}
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* value - The value to check.
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* @returns {boolean} Returns `true` if the given value is a
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* function, else `false`.
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*/
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function isFunction(value) {
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return typeof value === 'function';
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}
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/**
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* Iterate the given data.
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*
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* @param {*}
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* data - The data to iterate.
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* @param {Function}
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* callback - The process function for each
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* element.
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* @returns {*} The original data.
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*/
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function forEach(data, callback) {
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if (data && isFunction(callback)) {
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if (Array.isArray(data) || isNumber(data.length) /* array-like */) {
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var length = data.length;
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var i = void 0;
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for (i = 0; i < length; i += 1) {
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if (callback.call(data, data[i], i, data) === false) {
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break;
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}
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}
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} else if (isObject(data)) {
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Object.keys(data).forEach(function(key) {
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callback.call(data, data[key], key, data);
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});
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}
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}
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return data;
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}
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/**
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* Extend the given object.
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*
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* @param {*}
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* obj - The object to be extended.
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* @param {*}
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* args - The rest objects which will be merged
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* to the first object.
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* @returns {Object} The extended object.
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*/
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var assign = Object.assign
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|| function assign(obj) {
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for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1
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: 0), _key = 1; _key < _len; _key++) {
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args[_key - 1] = arguments[_key];
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}
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if (isObject(obj) && args.length > 0) {
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args.forEach(function(arg) {
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if (isObject(arg)) {
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Object.keys(arg).forEach(
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function(key) {
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obj[key] = arg[key];
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});
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}
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});
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}
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return obj;
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};
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var REGEXP_DECIMALS = /\.\d*(?:0|9){12}\d*$/i;
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/**
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* Normalize decimal number. Check out
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* {@link http://0.30000000000000004.com/}
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*
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* @param {number}
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* value - The value to normalize.
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* @param {number}
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* [times=100000000000] - The times for
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* normalizing.
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* @returns {number} Returns the normalized number.
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*/
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function normalizeDecimalNumber(value) {
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var times = arguments.length > 1
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&& arguments[1] !== undefined ? arguments[1]
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: 100000000000;
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return REGEXP_DECIMALS.test(value) ? Math.round(value
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* times)
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/ times : value;
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}
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var REGEXP_SUFFIX = /^(?:width|height|left|top|marginLeft|marginTop)$/;
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/**
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* Apply styles to the given element.
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*
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* @param {Element}
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* element - The target element.
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* @param {Object}
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* styles - The styles for applying.
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*/
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function setStyle(element, styles) {
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var style = element.style;
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forEach(styles,
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function(value, property) {
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if (REGEXP_SUFFIX.test(property)
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&& isNumber(value)) {
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value += 'px';
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}
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style[property] = value;
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});
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}
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/**
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* Check if the given element has a special class.
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|
*
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* @param {Element}
|
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* element - The element to check.
|
|
* @param {string}
|
|
* value - The class to search.
|
|
* @returns {boolean} Returns `true` if the special class
|
|
* was found.
|
|
*/
|
|
function hasClass(element, value) {
|
|
return element.classList ? element.classList
|
|
.contains(value) : element.className
|
|
.indexOf(value) > -1;
|
|
}
|
|
|
|
/**
|
|
* Add classes to the given element.
|
|
*
|
|
* @param {Element}
|
|
* element - The target element.
|
|
* @param {string}
|
|
* value - The classes to be added.
|
|
*/
|
|
function addClass(element, value) {
|
|
if (!value) {
|
|
return;
|
|
}
|
|
|
|
if (isNumber(element.length)) {
|
|
forEach(element, function(elem) {
|
|
addClass(elem, value);
|
|
});
|
|
return;
|
|
}
|
|
|
|
if (element.classList) {
|
|
element.classList.add(value);
|
|
return;
|
|
}
|
|
|
|
var className = element.className.trim();
|
|
|
|
if (!className) {
|
|
element.className = value;
|
|
} else if (className.indexOf(value) < 0) {
|
|
element.className = className + ' ' + value;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Remove classes from the given element.
|
|
*
|
|
* @param {Element}
|
|
* element - The target element.
|
|
* @param {string}
|
|
* value - The classes to be removed.
|
|
*/
|
|
function removeClass(element, value) {
|
|
if (!value) {
|
|
return;
|
|
}
|
|
|
|
if (isNumber(element.length)) {
|
|
forEach(element, function(elem) {
|
|
removeClass(elem, value);
|
|
});
|
|
return;
|
|
}
|
|
|
|
if (element.classList) {
|
|
element.classList.remove(value);
|
|
return;
|
|
}
|
|
|
|
if (element.className.indexOf(value) >= 0) {
|
|
element.className = element.className.replace(
|
|
value, '');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add or remove classes from the given element.
|
|
*
|
|
* @param {Element}
|
|
* element - The target element.
|
|
* @param {string}
|
|
* value - The classes to be toggled.
|
|
* @param {boolean}
|
|
* added - Add only.
|
|
*/
|
|
function toggleClass(element, value, added) {
|
|
if (!value) {
|
|
return;
|
|
}
|
|
|
|
if (isNumber(element.length)) {
|
|
forEach(element, function(elem) {
|
|
toggleClass(elem, value, added);
|
|
});
|
|
return;
|
|
}
|
|
|
|
// IE10-11 doesn't support the second parameter of
|
|
// `classList.toggle`
|
|
if (added) {
|
|
addClass(element, value);
|
|
} else {
|
|
removeClass(element, value);
|
|
}
|
|
}
|
|
|
|
var REGEXP_HYPHENATE = /([a-z\d])([A-Z])/g;
|
|
|
|
/**
|
|
* Transform the given string from camelCase to kebab-case
|
|
*
|
|
* @param {string}
|
|
* value - The value to transform.
|
|
* @returns {string} The transformed value.
|
|
*/
|
|
function hyphenate(value) {
|
|
return value.replace(REGEXP_HYPHENATE, '$1-$2')
|
|
.toLowerCase();
|
|
}
|
|
|
|
/**
|
|
* Get data from the given element.
|
|
*
|
|
* @param {Element}
|
|
* element - The target element.
|
|
* @param {string}
|
|
* name - The data key to get.
|
|
* @returns {string} The data value.
|
|
*/
|
|
function getData(element, name) {
|
|
if (isObject(element[name])) {
|
|
return element[name];
|
|
} else if (element.dataset) {
|
|
return element.dataset[name];
|
|
}
|
|
|
|
return element.getAttribute('data-' + hyphenate(name));
|
|
}
|
|
|
|
/**
|
|
* Set data to the given element.
|
|
*
|
|
* @param {Element}
|
|
* element - The target element.
|
|
* @param {string}
|
|
* name - The data key to set.
|
|
* @param {string}
|
|
* data - The data value.
|
|
*/
|
|
function setData(element, name, data) {
|
|
if (isObject(data)) {
|
|
element[name] = data;
|
|
} else if (element.dataset) {
|
|
element.dataset[name] = data;
|
|
} else {
|
|
element.setAttribute('data-' + hyphenate(name),
|
|
data);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Remove data from the given element.
|
|
*
|
|
* @param {Element}
|
|
* element - The target element.
|
|
* @param {string}
|
|
* name - The data key to remove.
|
|
*/
|
|
function removeData(element, name) {
|
|
if (isObject(element[name])) {
|
|
try {
|
|
delete element[name];
|
|
} catch (e) {
|
|
element[name] = undefined;
|
|
}
|
|
} else if (element.dataset) {
|
|
// #128 Safari not allows to delete dataset property
|
|
try {
|
|
delete element.dataset[name];
|
|
} catch (e) {
|
|
element.dataset[name] = undefined;
|
|
}
|
|
} else {
|
|
element.removeAttribute('data-' + hyphenate(name));
|
|
}
|
|
}
|
|
|
|
var REGEXP_SPACES = /\s\s*/;
|
|
var onceSupported = function() {
|
|
var supported = false;
|
|
|
|
if (IN_BROWSER) {
|
|
var once = false;
|
|
var listener = function listener() {
|
|
};
|
|
var options = Object.defineProperty({}, 'once', {
|
|
get : function get$$1() {
|
|
supported = true;
|
|
return once;
|
|
},
|
|
|
|
/**
|
|
* This setter can fix a `TypeError` in strict
|
|
* mode
|
|
* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Getter_only}
|
|
*
|
|
* @param {boolean}
|
|
* value - The value to set
|
|
*/
|
|
set : function set$$1(value) {
|
|
once = value;
|
|
}
|
|
});
|
|
|
|
WINDOW.addEventListener('test', listener, options);
|
|
WINDOW.removeEventListener('test', listener,
|
|
options);
|
|
}
|
|
|
|
return supported;
|
|
}();
|
|
|
|
/**
|
|
* Remove event listener from the target element.
|
|
*
|
|
* @param {Element}
|
|
* element - The event target.
|
|
* @param {string}
|
|
* type - The event type(s).
|
|
* @param {Function}
|
|
* listener - The event listener.
|
|
* @param {Object}
|
|
* options - The event options.
|
|
*/
|
|
function removeListener(element, type, listener) {
|
|
var options = arguments.length > 3
|
|
&& arguments[3] !== undefined ? arguments[3]
|
|
: {};
|
|
|
|
var handler = listener;
|
|
|
|
type
|
|
.trim()
|
|
.split(REGEXP_SPACES)
|
|
.forEach(
|
|
function(event) {
|
|
if (!onceSupported) {
|
|
var listeners = element.listeners;
|
|
|
|
if (listeners
|
|
&& listeners[event]
|
|
&& listeners[event][listener]) {
|
|
handler = listeners[event][listener];
|
|
delete listeners[event][listener];
|
|
|
|
if (Object
|
|
.keys(listeners[event]).length === 0) {
|
|
delete listeners[event];
|
|
}
|
|
|
|
if (Object.keys(listeners).length === 0) {
|
|
delete element.listeners;
|
|
}
|
|
}
|
|
}
|
|
|
|
element.removeEventListener(event,
|
|
handler, options);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Add event listener to the target element.
|
|
*
|
|
* @param {Element}
|
|
* element - The event target.
|
|
* @param {string}
|
|
* type - The event type(s).
|
|
* @param {Function}
|
|
* listener - The event listener.
|
|
* @param {Object}
|
|
* options - The event options.
|
|
*/
|
|
function addListener(element, type, listener) {
|
|
var options = arguments.length > 3
|
|
&& arguments[3] !== undefined ? arguments[3]
|
|
: {};
|
|
|
|
var _handler = listener;
|
|
|
|
type
|
|
.trim()
|
|
.split(REGEXP_SPACES)
|
|
.forEach(
|
|
function(event) {
|
|
if (options.once && !onceSupported) {
|
|
var _element$listeners = element.listeners, listeners = _element$listeners === undefined ? {}
|
|
: _element$listeners;
|
|
|
|
_handler = function handler() {
|
|
for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
|
|
args[_key2] = arguments[_key2];
|
|
}
|
|
|
|
delete listeners[event][listener];
|
|
element
|
|
.removeEventListener(
|
|
event,
|
|
_handler,
|
|
options);
|
|
listener.apply(element,
|
|
args);
|
|
};
|
|
|
|
if (!listeners[event]) {
|
|
listeners[event] = {};
|
|
}
|
|
|
|
if (listeners[event][listener]) {
|
|
element
|
|
.removeEventListener(
|
|
event,
|
|
listeners[event][listener],
|
|
options);
|
|
}
|
|
|
|
listeners[event][listener] = _handler;
|
|
element.listeners = listeners;
|
|
}
|
|
|
|
element.addEventListener(event,
|
|
_handler, options);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Dispatch event on the target element.
|
|
*
|
|
* @param {Element}
|
|
* element - The event target.
|
|
* @param {string}
|
|
* type - The event type(s).
|
|
* @param {Object}
|
|
* data - The additional event data.
|
|
* @returns {boolean} Indicate if the event is default
|
|
* prevented or not.
|
|
*/
|
|
function dispatchEvent(element, type, data) {
|
|
var event = void 0;
|
|
|
|
// Event and CustomEvent on IE9-11 are global objects,
|
|
// not constructors
|
|
if (isFunction(Event) && isFunction(CustomEvent)) {
|
|
event = new CustomEvent(type, {
|
|
detail : data,
|
|
bubbles : true,
|
|
cancelable : true
|
|
});
|
|
} else {
|
|
event = document.createEvent('CustomEvent');
|
|
event.initCustomEvent(type, true, true, data);
|
|
}
|
|
|
|
return element.dispatchEvent(event);
|
|
}
|
|
|
|
/**
|
|
* Get the offset base on the document.
|
|
*
|
|
* @param {Element}
|
|
* element - The target element.
|
|
* @returns {Object} The offset data.
|
|
*/
|
|
function getOffset(element) {
|
|
var box = element.getBoundingClientRect();
|
|
|
|
return {
|
|
left : box.left
|
|
+ (window.pageXOffset - document.documentElement.clientLeft),
|
|
top : box.top
|
|
+ (window.pageYOffset - document.documentElement.clientTop)
|
|
};
|
|
}
|
|
|
|
var location = WINDOW.location;
|
|
|
|
var REGEXP_ORIGINS = /^(https?:)\/\/([^:/?#]+):?(\d*)/i;
|
|
|
|
/**
|
|
* Check if the given URL is a cross origin URL.
|
|
*
|
|
* @param {string}
|
|
* url - The target URL.
|
|
* @returns {boolean} Returns `true` if the given URL is a
|
|
* cross origin URL, else `false`.
|
|
*/
|
|
function isCrossOriginURL(url) {
|
|
var parts = url.match(REGEXP_ORIGINS);
|
|
|
|
return parts
|
|
&& (parts[1] !== location.protocol
|
|
|| parts[2] !== location.hostname || parts[3] !== location.port);
|
|
}
|
|
|
|
/**
|
|
* Add timestamp to the given URL.
|
|
*
|
|
* @param {string}
|
|
* url - The target URL.
|
|
* @returns {string} The result URL.
|
|
*/
|
|
function addTimestamp(url) {
|
|
var timestamp = 'timestamp=' + new Date().getTime();
|
|
|
|
return url + (url.indexOf('?') === -1 ? '?' : '&')
|
|
+ timestamp;
|
|
}
|
|
|
|
/**
|
|
* Get transforms base on the given object.
|
|
*
|
|
* @param {Object}
|
|
* obj - The target object.
|
|
* @returns {string} A string contains transform values.
|
|
*/
|
|
function getTransforms(_ref) {
|
|
var rotate = _ref.rotate, scaleX = _ref.scaleX, scaleY = _ref.scaleY, translateX = _ref.translateX, translateY = _ref.translateY;
|
|
|
|
var values = [];
|
|
|
|
if (isNumber(translateX) && translateX !== 0) {
|
|
values.push('translateX(' + translateX + 'px)');
|
|
}
|
|
|
|
if (isNumber(translateY) && translateY !== 0) {
|
|
values.push('translateY(' + translateY + 'px)');
|
|
}
|
|
|
|
// Rotate should come first before scale to match
|
|
// orientation transform
|
|
if (isNumber(rotate) && rotate !== 0) {
|
|
values.push('rotate(' + rotate + 'deg)');
|
|
}
|
|
|
|
if (isNumber(scaleX) && scaleX !== 1) {
|
|
values.push('scaleX(' + scaleX + ')');
|
|
}
|
|
|
|
if (isNumber(scaleY) && scaleY !== 1) {
|
|
values.push('scaleY(' + scaleY + ')');
|
|
}
|
|
|
|
var transform = values.length ? values.join(' ')
|
|
: 'none';
|
|
|
|
return {
|
|
WebkitTransform : transform,
|
|
msTransform : transform,
|
|
transform : transform
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Get the max ratio of a group of pointers.
|
|
*
|
|
* @param {string}
|
|
* pointers - The target pointers.
|
|
* @returns {number} The result ratio.
|
|
*/
|
|
function getMaxZoomRatio(pointers) {
|
|
var pointers2 = assign({}, pointers);
|
|
var ratios = [];
|
|
|
|
forEach(pointers, function(pointer, pointerId) {
|
|
delete pointers2[pointerId];
|
|
|
|
forEach(pointers2,
|
|
function(pointer2) {
|
|
var x1 = Math.abs(pointer.startX
|
|
- pointer2.startX);
|
|
var y1 = Math.abs(pointer.startY
|
|
- pointer2.startY);
|
|
var x2 = Math.abs(pointer.endX
|
|
- pointer2.endX);
|
|
var y2 = Math.abs(pointer.endY
|
|
- pointer2.endY);
|
|
var z1 = Math.sqrt(x1 * x1 + y1 * y1);
|
|
var z2 = Math.sqrt(x2 * x2 + y2 * y2);
|
|
var ratio = (z2 - z1) / z1;
|
|
|
|
ratios.push(ratio);
|
|
});
|
|
});
|
|
|
|
ratios.sort(function(a, b) {
|
|
return Math.abs(a) < Math.abs(b);
|
|
});
|
|
|
|
return ratios[0];
|
|
}
|
|
|
|
/**
|
|
* Get a pointer from an event object.
|
|
*
|
|
* @param {Object}
|
|
* event - The target event object.
|
|
* @param {boolean}
|
|
* endOnly - Indicates if only returns the end
|
|
* point coordinate or not.
|
|
* @returns {Object} The result pointer contains start
|
|
* and/or end point coordinates.
|
|
*/
|
|
function getPointer(_ref2, endOnly) {
|
|
var pageX = _ref2.pageX, pageY = _ref2.pageY;
|
|
|
|
var end = {
|
|
endX : pageX,
|
|
endY : pageY
|
|
};
|
|
|
|
return endOnly ? end : assign({
|
|
startX : pageX,
|
|
startY : pageY
|
|
}, end);
|
|
}
|
|
|
|
/**
|
|
* Get the center point coordinate of a group of pointers.
|
|
*
|
|
* @param {Object}
|
|
* pointers - The target pointers.
|
|
* @returns {Object} The center point coordinate.
|
|
*/
|
|
function getPointersCenter(pointers) {
|
|
var pageX = 0;
|
|
var pageY = 0;
|
|
var count = 0;
|
|
|
|
forEach(pointers, function(_ref3) {
|
|
var startX = _ref3.startX, startY = _ref3.startY;
|
|
|
|
pageX += startX;
|
|
pageY += startY;
|
|
count += 1;
|
|
});
|
|
|
|
pageX /= count;
|
|
pageY /= count;
|
|
|
|
return {
|
|
pageX : pageX,
|
|
pageY : pageY
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Check if the given value is a finite number.
|
|
*/
|
|
var isFinite = Number.isFinite || WINDOW.isFinite;
|
|
|
|
/**
|
|
* Get the max sizes in a rectangle under the given aspect
|
|
* ratio.
|
|
*
|
|
* @param {Object}
|
|
* data - The original sizes.
|
|
* @param {string}
|
|
* [type='contain'] - The adjust type.
|
|
* @returns {Object} The result sizes.
|
|
*/
|
|
function getAdjustedSizes(_ref4) // or 'cover'
|
|
{
|
|
var aspectRatio = _ref4.aspectRatio, height = _ref4.height, width = _ref4.width;
|
|
var type = arguments.length > 1
|
|
&& arguments[1] !== undefined ? arguments[1]
|
|
: 'contain';
|
|
|
|
var isValidNumber = function isValidNumber(value) {
|
|
return isFinite(value) && value > 0;
|
|
};
|
|
|
|
if (isValidNumber(width) && isValidNumber(height)) {
|
|
var adjustedWidth = height * aspectRatio;
|
|
|
|
if (type === 'contain' && adjustedWidth > width
|
|
|| type === 'cover'
|
|
&& adjustedWidth < width) {
|
|
height = width / aspectRatio;
|
|
} else {
|
|
width = height * aspectRatio;
|
|
}
|
|
} else if (isValidNumber(width)) {
|
|
height = width / aspectRatio;
|
|
} else if (isValidNumber(height)) {
|
|
width = height * aspectRatio;
|
|
}
|
|
|
|
return {
|
|
width : width,
|
|
height : height
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Get the new sizes of a rectangle after rotated.
|
|
*
|
|
* @param {Object}
|
|
* data - The original sizes.
|
|
* @returns {Object} The result sizes.
|
|
*/
|
|
function getRotatedSizes(_ref5) {
|
|
var width = _ref5.width, height = _ref5.height, degree = _ref5.degree;
|
|
|
|
degree = Math.abs(degree) % 180;
|
|
|
|
if (degree === 90) {
|
|
return {
|
|
width : height,
|
|
height : width
|
|
};
|
|
}
|
|
|
|
var arc = degree % 90 * Math.PI / 180;
|
|
var sinArc = Math.sin(arc);
|
|
var cosArc = Math.cos(arc);
|
|
var newWidth = width * cosArc + height * sinArc;
|
|
var newHeight = width * sinArc + height * cosArc;
|
|
|
|
return degree > 90 ? {
|
|
width : newHeight,
|
|
height : newWidth
|
|
} : {
|
|
width : newWidth,
|
|
height : newHeight
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Get a canvas which drew the given image.
|
|
*
|
|
* @param {HTMLImageElement}
|
|
* image - The image for drawing.
|
|
* @param {Object}
|
|
* imageData - The image data.
|
|
* @param {Object}
|
|
* canvasData - The canvas data.
|
|
* @param {Object}
|
|
* options - The options.
|
|
* @returns {HTMLCanvasElement} The result canvas.
|
|
*/
|
|
function getSourceCanvas(image, _ref6, _ref7, _ref8) {
|
|
var imageAspectRatio = _ref6.aspectRatio, imageNaturalWidth = _ref6.naturalWidth, imageNaturalHeight = _ref6.naturalHeight, _ref6$rotate = _ref6.rotate, rotate = _ref6$rotate === undefined ? 0
|
|
: _ref6$rotate, _ref6$scaleX = _ref6.scaleX, scaleX = _ref6$scaleX === undefined ? 1
|
|
: _ref6$scaleX, _ref6$scaleY = _ref6.scaleY, scaleY = _ref6$scaleY === undefined ? 1
|
|
: _ref6$scaleY;
|
|
var aspectRatio = _ref7.aspectRatio, naturalWidth = _ref7.naturalWidth, naturalHeight = _ref7.naturalHeight;
|
|
var _ref8$fillColor = _ref8.fillColor, fillColor = _ref8$fillColor === undefined ? 'transparent'
|
|
: _ref8$fillColor, _ref8$imageSmoothingE = _ref8.imageSmoothingEnabled, imageSmoothingEnabled = _ref8$imageSmoothingE === undefined ? true
|
|
: _ref8$imageSmoothingE, _ref8$imageSmoothingQ = _ref8.imageSmoothingQuality, imageSmoothingQuality = _ref8$imageSmoothingQ === undefined ? 'low'
|
|
: _ref8$imageSmoothingQ, _ref8$maxWidth = _ref8.maxWidth, maxWidth = _ref8$maxWidth === undefined ? Infinity
|
|
: _ref8$maxWidth, _ref8$maxHeight = _ref8.maxHeight, maxHeight = _ref8$maxHeight === undefined ? Infinity
|
|
: _ref8$maxHeight, _ref8$minWidth = _ref8.minWidth, minWidth = _ref8$minWidth === undefined ? 0
|
|
: _ref8$minWidth, _ref8$minHeight = _ref8.minHeight, minHeight = _ref8$minHeight === undefined ? 0
|
|
: _ref8$minHeight;
|
|
|
|
var canvas = document.createElement('canvas');
|
|
var context = canvas.getContext('2d');
|
|
var maxSizes = getAdjustedSizes({
|
|
aspectRatio : aspectRatio,
|
|
width : maxWidth,
|
|
height : maxHeight
|
|
});
|
|
var minSizes = getAdjustedSizes({
|
|
aspectRatio : aspectRatio,
|
|
width : minWidth,
|
|
height : minHeight
|
|
}, 'cover');
|
|
var width = Math.min(maxSizes.width, Math.max(
|
|
minSizes.width, naturalWidth));
|
|
var height = Math.min(maxSizes.height, Math.max(
|
|
minSizes.height, naturalHeight));
|
|
|
|
// Note: should always use image's natural sizes for
|
|
// drawing as
|
|
// imageData.naturalWidth === canvasData.naturalHeight
|
|
// when rotate % 180 === 90
|
|
var destMaxSizes = getAdjustedSizes({
|
|
aspectRatio : imageAspectRatio,
|
|
width : maxWidth,
|
|
height : maxHeight
|
|
});
|
|
var destMinSizes = getAdjustedSizes({
|
|
aspectRatio : imageAspectRatio,
|
|
width : minWidth,
|
|
height : minHeight
|
|
}, 'cover');
|
|
var destWidth = Math.min(destMaxSizes.width, Math.max(
|
|
destMinSizes.width, imageNaturalWidth));
|
|
var destHeight = Math.min(destMaxSizes.height, Math
|
|
.max(destMinSizes.height, imageNaturalHeight));
|
|
var params = [ -destWidth / 2, -destHeight / 2,
|
|
destWidth, destHeight ];
|
|
|
|
canvas.width = normalizeDecimalNumber(width);
|
|
canvas.height = normalizeDecimalNumber(height);
|
|
context.fillStyle = fillColor;
|
|
context.fillRect(0, 0, width, height);
|
|
context.save();
|
|
context.translate(width / 2, height / 2);
|
|
context.rotate(rotate * Math.PI / 180);
|
|
context.scale(scaleX, scaleY);
|
|
context.imageSmoothingEnabled = imageSmoothingEnabled;
|
|
context.imageSmoothingQuality = imageSmoothingQuality;
|
|
context.drawImage
|
|
.apply(
|
|
context,
|
|
[ image ]
|
|
.concat(toConsumableArray(params
|
|
.map(function(param) {
|
|
return Math
|
|
.floor(normalizeDecimalNumber(param));
|
|
}))));
|
|
context.restore();
|
|
return canvas;
|
|
}
|
|
|
|
var fromCharCode = String.fromCharCode;
|
|
|
|
/**
|
|
* Get string from char code in data view.
|
|
*
|
|
* @param {DataView}
|
|
* dataView - The data view for read.
|
|
* @param {number}
|
|
* start - The start index.
|
|
* @param {number}
|
|
* length - The read length.
|
|
* @returns {string} The read result.
|
|
*/
|
|
|
|
function getStringFromCharCode(dataView, start, length) {
|
|
var str = '';
|
|
var i = void 0;
|
|
|
|
length += start;
|
|
|
|
for (i = start; i < length; i += 1) {
|
|
str += fromCharCode(dataView.getUint8(i));
|
|
}
|
|
|
|
return str;
|
|
}
|
|
|
|
var REGEXP_DATA_URL_HEAD = /^data:.*,/;
|
|
|
|
/**
|
|
* Transform Data URL to array buffer.
|
|
*
|
|
* @param {string}
|
|
* dataURL - The Data URL to transform.
|
|
* @returns {ArrayBuffer} The result array buffer.
|
|
*/
|
|
function dataURLToArrayBuffer(dataURL) {
|
|
var base64 = dataURL.replace(REGEXP_DATA_URL_HEAD, '');
|
|
var binary = atob(base64);
|
|
var arrayBuffer = new ArrayBuffer(binary.length);
|
|
var uint8 = new Uint8Array(arrayBuffer);
|
|
|
|
forEach(uint8, function(value, i) {
|
|
uint8[i] = binary.charCodeAt(i);
|
|
});
|
|
|
|
return arrayBuffer;
|
|
}
|
|
|
|
/**
|
|
* Transform array buffer to Data URL.
|
|
*
|
|
* @param {ArrayBuffer}
|
|
* arrayBuffer - The array buffer to transform.
|
|
* @param {string}
|
|
* mimeType - The mime type of the Data URL.
|
|
* @returns {string} The result Data URL.
|
|
*/
|
|
function arrayBufferToDataURL(arrayBuffer, mimeType) {
|
|
var uint8 = new Uint8Array(arrayBuffer);
|
|
var data = '';
|
|
|
|
// TypedArray.prototype.forEach is not supported in some
|
|
// browsers.
|
|
forEach(uint8, function(value) {
|
|
data += fromCharCode(value);
|
|
});
|
|
|
|
return 'data:' + mimeType + ';base64,' + btoa(data);
|
|
}
|
|
|
|
/**
|
|
* Get orientation value from given array buffer.
|
|
*
|
|
* @param {ArrayBuffer}
|
|
* arrayBuffer - The array buffer to read.
|
|
* @returns {number} The read orientation value.
|
|
*/
|
|
function getOrientation(arrayBuffer) {
|
|
var dataView = new DataView(arrayBuffer);
|
|
var orientation = void 0;
|
|
var littleEndian = void 0;
|
|
var app1Start = void 0;
|
|
var ifdStart = void 0;
|
|
|
|
// Only handle JPEG image (start by 0xFFD8)
|
|
if (dataView.getUint8(0) === 0xFF
|
|
&& dataView.getUint8(1) === 0xD8) {
|
|
var length = dataView.byteLength;
|
|
var offset = 2;
|
|
|
|
while (offset < length) {
|
|
if (dataView.getUint8(offset) === 0xFF
|
|
&& dataView.getUint8(offset + 1) === 0xE1) {
|
|
app1Start = offset;
|
|
break;
|
|
}
|
|
|
|
offset += 1;
|
|
}
|
|
}
|
|
|
|
if (app1Start) {
|
|
var exifIDCode = app1Start + 4;
|
|
var tiffOffset = app1Start + 10;
|
|
|
|
if (getStringFromCharCode(dataView, exifIDCode, 4) === 'Exif') {
|
|
var endianness = dataView.getUint16(tiffOffset);
|
|
|
|
littleEndian = endianness === 0x4949;
|
|
|
|
if (littleEndian || endianness === 0x4D4D /* bigEndian */) {
|
|
if (dataView.getUint16(tiffOffset + 2,
|
|
littleEndian) === 0x002A) {
|
|
var firstIFDOffset = dataView
|
|
.getUint32(tiffOffset + 4,
|
|
littleEndian);
|
|
|
|
if (firstIFDOffset >= 0x00000008) {
|
|
ifdStart = tiffOffset
|
|
+ firstIFDOffset;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ifdStart) {
|
|
var _length = dataView.getUint16(ifdStart,
|
|
littleEndian);
|
|
var _offset = void 0;
|
|
var i = void 0;
|
|
|
|
for (i = 0; i < _length; i += 1) {
|
|
_offset = ifdStart + i * 12 + 2;
|
|
|
|
if (dataView.getUint16(_offset, littleEndian) === 0x0112 /* Orientation */) {
|
|
// 8 is the offset of the current tag's
|
|
// value
|
|
_offset += 8;
|
|
|
|
// Get the original orientation value
|
|
orientation = dataView.getUint16(_offset,
|
|
littleEndian);
|
|
|
|
// Override the orientation with its default
|
|
// value
|
|
dataView
|
|
.setUint16(_offset, 1, littleEndian);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return orientation;
|
|
}
|
|
|
|
/**
|
|
* Parse Exif Orientation value.
|
|
*
|
|
* @param {number}
|
|
* orientation - The orientation to parse.
|
|
* @returns {Object} The parsed result.
|
|
*/
|
|
function parseOrientation(orientation) {
|
|
var rotate = 0;
|
|
var scaleX = 1;
|
|
var scaleY = 1;
|
|
|
|
switch (orientation) {
|
|
// Flip horizontal
|
|
case 2:
|
|
scaleX = -1;
|
|
break;
|
|
|
|
// Rotate left 180°
|
|
case 3:
|
|
rotate = -180;
|
|
break;
|
|
|
|
// Flip vertical
|
|
case 4:
|
|
scaleY = -1;
|
|
break;
|
|
|
|
// Flip vertical and rotate right 90°
|
|
case 5:
|
|
rotate = 90;
|
|
scaleY = -1;
|
|
break;
|
|
|
|
// Rotate right 90°
|
|
case 6:
|
|
rotate = 90;
|
|
break;
|
|
|
|
// Flip horizontal and rotate right 90°
|
|
case 7:
|
|
rotate = 90;
|
|
scaleX = -1;
|
|
break;
|
|
|
|
// Rotate left 90°
|
|
case 8:
|
|
rotate = -90;
|
|
break;
|
|
|
|
default:
|
|
}
|
|
|
|
return {
|
|
rotate : rotate,
|
|
scaleX : scaleX,
|
|
scaleY : scaleY
|
|
};
|
|
}
|
|
|
|
var render = {
|
|
render : function render() {
|
|
this.initContainer();
|
|
this.initCanvas();
|
|
this.initCropBox();
|
|
this.renderCanvas();
|
|
|
|
if (this.cropped) {
|
|
this.renderCropBox();
|
|
}
|
|
},
|
|
initContainer : function initContainer() {
|
|
var element = this.element, options = this.options, container = this.container, cropper = this.cropper;
|
|
|
|
addClass(cropper, CLASS_HIDDEN);
|
|
removeClass(element, CLASS_HIDDEN);
|
|
|
|
var containerData = {
|
|
width : Math
|
|
.max(
|
|
container.offsetWidth,
|
|
Number(options.minContainerWidth) || 200),
|
|
height : Math
|
|
.max(
|
|
container.offsetHeight,
|
|
Number(options.minContainerHeight) || 100)
|
|
};
|
|
|
|
this.containerData = containerData;
|
|
|
|
setStyle(cropper, {
|
|
width : containerData.width,
|
|
height : containerData.height
|
|
});
|
|
|
|
addClass(element, CLASS_HIDDEN);
|
|
removeClass(cropper, CLASS_HIDDEN);
|
|
},
|
|
|
|
// Canvas (image wrapper)
|
|
initCanvas : function initCanvas() {
|
|
var containerData = this.containerData, imageData = this.imageData;
|
|
var viewMode = this.options.viewMode;
|
|
|
|
var rotated = Math.abs(imageData.rotate) % 180 === 90;
|
|
var naturalWidth = rotated ? imageData.naturalHeight
|
|
: imageData.naturalWidth;
|
|
var naturalHeight = rotated ? imageData.naturalWidth
|
|
: imageData.naturalHeight;
|
|
var aspectRatio = naturalWidth / naturalHeight;
|
|
var canvasWidth = containerData.width;
|
|
var canvasHeight = containerData.height;
|
|
|
|
if (containerData.height * aspectRatio > containerData.width) {
|
|
if (viewMode === 3) {
|
|
canvasWidth = containerData.height
|
|
* aspectRatio;
|
|
} else {
|
|
canvasHeight = containerData.width
|
|
/ aspectRatio;
|
|
}
|
|
} else if (viewMode === 3) {
|
|
canvasHeight = containerData.width
|
|
/ aspectRatio;
|
|
} else {
|
|
canvasWidth = containerData.height
|
|
* aspectRatio;
|
|
}
|
|
|
|
var canvasData = {
|
|
aspectRatio : aspectRatio,
|
|
naturalWidth : naturalWidth,
|
|
naturalHeight : naturalHeight,
|
|
width : canvasWidth,
|
|
height : canvasHeight
|
|
};
|
|
|
|
canvasData.left = (containerData.width - canvasWidth) / 2;
|
|
canvasData.top = (containerData.height - canvasHeight) / 2;
|
|
canvasData.oldLeft = canvasData.left;
|
|
canvasData.oldTop = canvasData.top;
|
|
|
|
this.canvasData = canvasData;
|
|
this.limited = viewMode === 1 || viewMode === 2;
|
|
this.limitCanvas(true, true);
|
|
this.initialImageData = assign({}, imageData);
|
|
this.initialCanvasData = assign({}, canvasData);
|
|
},
|
|
limitCanvas : function limitCanvas(sizeLimited,
|
|
positionLimited) {
|
|
var options = this.options, containerData = this.containerData, canvasData = this.canvasData, cropBoxData = this.cropBoxData;
|
|
var viewMode = options.viewMode;
|
|
var aspectRatio = canvasData.aspectRatio;
|
|
|
|
var cropped = this.cropped && cropBoxData;
|
|
|
|
if (sizeLimited) {
|
|
var minCanvasWidth = Number(options.minCanvasWidth) || 0;
|
|
var minCanvasHeight = Number(options.minCanvasHeight) || 0;
|
|
|
|
if (viewMode > 1) {
|
|
minCanvasWidth = Math.max(minCanvasWidth,
|
|
containerData.width);
|
|
minCanvasHeight = Math.max(minCanvasHeight,
|
|
containerData.height);
|
|
|
|
if (viewMode === 3) {
|
|
if (minCanvasHeight * aspectRatio > minCanvasWidth) {
|
|
minCanvasWidth = minCanvasHeight
|
|
* aspectRatio;
|
|
} else {
|
|
minCanvasHeight = minCanvasWidth
|
|
/ aspectRatio;
|
|
}
|
|
}
|
|
} else if (viewMode > 0) {
|
|
if (minCanvasWidth) {
|
|
minCanvasWidth = Math
|
|
.max(
|
|
minCanvasWidth,
|
|
cropped ? cropBoxData.width
|
|
: 0);
|
|
} else if (minCanvasHeight) {
|
|
minCanvasHeight = Math.max(
|
|
minCanvasHeight,
|
|
cropped ? cropBoxData.height
|
|
: 0);
|
|
} else if (cropped) {
|
|
minCanvasWidth = cropBoxData.width;
|
|
minCanvasHeight = cropBoxData.height;
|
|
|
|
if (minCanvasHeight * aspectRatio > minCanvasWidth) {
|
|
minCanvasWidth = minCanvasHeight
|
|
* aspectRatio;
|
|
} else {
|
|
minCanvasHeight = minCanvasWidth
|
|
/ aspectRatio;
|
|
}
|
|
}
|
|
}
|
|
|
|
var _getAdjustedSizes = getAdjustedSizes({
|
|
aspectRatio : aspectRatio,
|
|
width : minCanvasWidth,
|
|
height : minCanvasHeight
|
|
});
|
|
|
|
minCanvasWidth = _getAdjustedSizes.width;
|
|
minCanvasHeight = _getAdjustedSizes.height;
|
|
|
|
canvasData.minWidth = minCanvasWidth;
|
|
canvasData.minHeight = minCanvasHeight;
|
|
canvasData.maxWidth = Infinity;
|
|
canvasData.maxHeight = Infinity;
|
|
}
|
|
|
|
if (positionLimited) {
|
|
if (viewMode) {
|
|
var newCanvasLeft = containerData.width
|
|
- canvasData.width;
|
|
var newCanvasTop = containerData.height
|
|
- canvasData.height;
|
|
|
|
canvasData.minLeft = Math.min(0,
|
|
newCanvasLeft);
|
|
canvasData.minTop = Math.min(0,
|
|
newCanvasTop);
|
|
canvasData.maxLeft = Math.max(0,
|
|
newCanvasLeft);
|
|
canvasData.maxTop = Math.max(0,
|
|
newCanvasTop);
|
|
|
|
if (cropped && this.limited) {
|
|
canvasData.minLeft = Math
|
|
.min(
|
|
cropBoxData.left,
|
|
cropBoxData.left
|
|
+ (cropBoxData.width - canvasData.width));
|
|
canvasData.minTop = Math
|
|
.min(
|
|
cropBoxData.top,
|
|
cropBoxData.top
|
|
+ (cropBoxData.height - canvasData.height));
|
|
canvasData.maxLeft = cropBoxData.left;
|
|
canvasData.maxTop = cropBoxData.top;
|
|
|
|
if (viewMode === 2) {
|
|
if (canvasData.width >= containerData.width) {
|
|
canvasData.minLeft = Math.min(
|
|
0, newCanvasLeft);
|
|
canvasData.maxLeft = Math.max(
|
|
0, newCanvasLeft);
|
|
}
|
|
|
|
if (canvasData.height >= containerData.height) {
|
|
canvasData.minTop = Math.min(0,
|
|
newCanvasTop);
|
|
canvasData.maxTop = Math.max(0,
|
|
newCanvasTop);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
canvasData.minLeft = -canvasData.width;
|
|
canvasData.minTop = -canvasData.height;
|
|
canvasData.maxLeft = containerData.width;
|
|
canvasData.maxTop = containerData.height;
|
|
}
|
|
}
|
|
},
|
|
renderCanvas : function renderCanvas(changed,
|
|
transformed) {
|
|
var canvasData = this.canvasData, imageData = this.imageData;
|
|
|
|
if (transformed) {
|
|
var _getRotatedSizes = getRotatedSizes({
|
|
width : imageData.naturalWidth
|
|
* Math.abs(imageData.scaleX || 1),
|
|
height : imageData.naturalHeight
|
|
* Math.abs(imageData.scaleY || 1),
|
|
degree : imageData.rotate || 0
|
|
}), naturalWidth = _getRotatedSizes.width, naturalHeight = _getRotatedSizes.height;
|
|
|
|
var width = canvasData.width
|
|
* (naturalWidth / canvasData.naturalWidth);
|
|
var height = canvasData.height
|
|
* (naturalHeight / canvasData.naturalHeight);
|
|
|
|
canvasData.left -= (width - canvasData.width) / 2;
|
|
canvasData.top -= (height - canvasData.height) / 2;
|
|
canvasData.width = width;
|
|
canvasData.height = height;
|
|
canvasData.aspectRatio = naturalWidth
|
|
/ naturalHeight;
|
|
canvasData.naturalWidth = naturalWidth;
|
|
canvasData.naturalHeight = naturalHeight;
|
|
this.limitCanvas(true, false);
|
|
}
|
|
|
|
if (canvasData.width > canvasData.maxWidth
|
|
|| canvasData.width < canvasData.minWidth) {
|
|
canvasData.left = canvasData.oldLeft;
|
|
}
|
|
|
|
if (canvasData.height > canvasData.maxHeight
|
|
|| canvasData.height < canvasData.minHeight) {
|
|
canvasData.top = canvasData.oldTop;
|
|
}
|
|
|
|
canvasData.width = Math.min(Math.max(
|
|
canvasData.width, canvasData.minWidth),
|
|
canvasData.maxWidth);
|
|
canvasData.height = Math.min(Math.max(
|
|
canvasData.height, canvasData.minHeight),
|
|
canvasData.maxHeight);
|
|
|
|
this.limitCanvas(false, true);
|
|
|
|
canvasData.left = Math.min(Math.max(
|
|
canvasData.left, canvasData.minLeft),
|
|
canvasData.maxLeft);
|
|
canvasData.top = Math.min(Math.max(canvasData.top,
|
|
canvasData.minTop), canvasData.maxTop);
|
|
canvasData.oldLeft = canvasData.left;
|
|
canvasData.oldTop = canvasData.top;
|
|
|
|
setStyle(this.canvas, assign({
|
|
width : canvasData.width,
|
|
height : canvasData.height
|
|
}, getTransforms({
|
|
translateX : canvasData.left,
|
|
translateY : canvasData.top
|
|
})));
|
|
|
|
this.renderImage(changed);
|
|
|
|
if (this.cropped && this.limited) {
|
|
this.limitCropBox(true, true);
|
|
}
|
|
},
|
|
renderImage : function renderImage(changed) {
|
|
var canvasData = this.canvasData, imageData = this.imageData;
|
|
|
|
var width = imageData.naturalWidth
|
|
* (canvasData.width / canvasData.naturalWidth);
|
|
var height = imageData.naturalHeight
|
|
* (canvasData.height / canvasData.naturalHeight);
|
|
|
|
assign(imageData, {
|
|
width : width,
|
|
height : height,
|
|
left : (canvasData.width - width) / 2,
|
|
top : (canvasData.height - height) / 2
|
|
});
|
|
setStyle(this.image, assign({
|
|
width : imageData.width,
|
|
height : imageData.height
|
|
}, getTransforms(assign({
|
|
translateX : imageData.left,
|
|
translateY : imageData.top
|
|
}, imageData))));
|
|
|
|
if (changed) {
|
|
this.output();
|
|
}
|
|
},
|
|
initCropBox : function initCropBox() {
|
|
var options = this.options, canvasData = this.canvasData;
|
|
var aspectRatio = options.aspectRatio;
|
|
|
|
var autoCropArea = Number(options.autoCropArea) || 0.8;
|
|
var cropBoxData = {
|
|
width : canvasData.width,
|
|
height : canvasData.height
|
|
};
|
|
|
|
if (aspectRatio) {
|
|
if (canvasData.height * aspectRatio > canvasData.width) {
|
|
cropBoxData.height = cropBoxData.width
|
|
/ aspectRatio;
|
|
} else {
|
|
cropBoxData.width = cropBoxData.height
|
|
* aspectRatio;
|
|
}
|
|
}
|
|
|
|
this.cropBoxData = cropBoxData;
|
|
this.limitCropBox(true, true);
|
|
|
|
// Initialize auto crop area
|
|
cropBoxData.width = Math.min(Math.max(
|
|
cropBoxData.width, cropBoxData.minWidth),
|
|
cropBoxData.maxWidth);
|
|
cropBoxData.height = Math.min(Math.max(
|
|
cropBoxData.height, cropBoxData.minHeight),
|
|
cropBoxData.maxHeight);
|
|
|
|
// The width/height of auto crop area must large
|
|
// than "minWidth/Height"
|
|
cropBoxData.width = Math.max(cropBoxData.minWidth,
|
|
cropBoxData.width * autoCropArea);
|
|
cropBoxData.height = Math.max(
|
|
cropBoxData.minHeight, cropBoxData.height
|
|
* autoCropArea);
|
|
cropBoxData.left = canvasData.left
|
|
+ (canvasData.width - cropBoxData.width)
|
|
/ 2;
|
|
cropBoxData.top = canvasData.top
|
|
+ (canvasData.height - cropBoxData.height)
|
|
/ 2;
|
|
cropBoxData.oldLeft = cropBoxData.left;
|
|
cropBoxData.oldTop = cropBoxData.top;
|
|
|
|
this.initialCropBoxData = assign({}, cropBoxData);
|
|
},
|
|
limitCropBox : function limitCropBox(sizeLimited,
|
|
positionLimited) {
|
|
var options = this.options, containerData = this.containerData, canvasData = this.canvasData, cropBoxData = this.cropBoxData, limited = this.limited;
|
|
var aspectRatio = options.aspectRatio;
|
|
|
|
if (sizeLimited) {
|
|
var minCropBoxWidth = Number(options.minCropBoxWidth) || 0;
|
|
var minCropBoxHeight = Number(options.minCropBoxHeight) || 0;
|
|
var maxCropBoxWidth = Math.min(
|
|
containerData.width,
|
|
limited ? canvasData.width
|
|
: containerData.width);
|
|
var maxCropBoxHeight = Math.min(
|
|
containerData.height,
|
|
limited ? canvasData.height
|
|
: containerData.height);
|
|
|
|
// The min/maxCropBoxWidth/Height must be less
|
|
// than container's width/height
|
|
minCropBoxWidth = Math.min(minCropBoxWidth,
|
|
containerData.width);
|
|
minCropBoxHeight = Math.min(minCropBoxHeight,
|
|
containerData.height);
|
|
|
|
if (aspectRatio) {
|
|
if (minCropBoxWidth && minCropBoxHeight) {
|
|
if (minCropBoxHeight * aspectRatio > minCropBoxWidth) {
|
|
minCropBoxHeight = minCropBoxWidth
|
|
/ aspectRatio;
|
|
} else {
|
|
minCropBoxWidth = minCropBoxHeight
|
|
* aspectRatio;
|
|
}
|
|
} else if (minCropBoxWidth) {
|
|
minCropBoxHeight = minCropBoxWidth
|
|
/ aspectRatio;
|
|
} else if (minCropBoxHeight) {
|
|
minCropBoxWidth = minCropBoxHeight
|
|
* aspectRatio;
|
|
}
|
|
|
|
if (maxCropBoxHeight * aspectRatio > maxCropBoxWidth) {
|
|
maxCropBoxHeight = maxCropBoxWidth
|
|
/ aspectRatio;
|
|
} else {
|
|
maxCropBoxWidth = maxCropBoxHeight
|
|
* aspectRatio;
|
|
}
|
|
}
|
|
|
|
// The minWidth/Height must be less than
|
|
// maxWidth/Height
|
|
cropBoxData.minWidth = Math.min(
|
|
minCropBoxWidth, maxCropBoxWidth);
|
|
cropBoxData.minHeight = Math.min(
|
|
minCropBoxHeight, maxCropBoxHeight);
|
|
cropBoxData.maxWidth = maxCropBoxWidth;
|
|
cropBoxData.maxHeight = maxCropBoxHeight;
|
|
}
|
|
|
|
if (positionLimited) {
|
|
if (limited) {
|
|
cropBoxData.minLeft = Math.max(0,
|
|
canvasData.left);
|
|
cropBoxData.minTop = Math.max(0,
|
|
canvasData.top);
|
|
cropBoxData.maxLeft = Math.min(
|
|
containerData.width,
|
|
canvasData.left + canvasData.width)
|
|
- cropBoxData.width;
|
|
cropBoxData.maxTop = Math.min(
|
|
containerData.height,
|
|
canvasData.top + canvasData.height)
|
|
- cropBoxData.height;
|
|
} else {
|
|
cropBoxData.minLeft = 0;
|
|
cropBoxData.minTop = 0;
|
|
cropBoxData.maxLeft = containerData.width
|
|
- cropBoxData.width;
|
|
cropBoxData.maxTop = containerData.height
|
|
- cropBoxData.height;
|
|
}
|
|
}
|
|
},
|
|
renderCropBox : function renderCropBox() {
|
|
var options = this.options, containerData = this.containerData, cropBoxData = this.cropBoxData;
|
|
|
|
if (cropBoxData.width > cropBoxData.maxWidth
|
|
|| cropBoxData.width < cropBoxData.minWidth) {
|
|
cropBoxData.left = cropBoxData.oldLeft;
|
|
}
|
|
|
|
if (cropBoxData.height > cropBoxData.maxHeight
|
|
|| cropBoxData.height < cropBoxData.minHeight) {
|
|
cropBoxData.top = cropBoxData.oldTop;
|
|
}
|
|
|
|
cropBoxData.width = Math.min(Math.max(
|
|
cropBoxData.width, cropBoxData.minWidth),
|
|
cropBoxData.maxWidth);
|
|
cropBoxData.height = Math.min(Math.max(
|
|
cropBoxData.height, cropBoxData.minHeight),
|
|
cropBoxData.maxHeight);
|
|
|
|
this.limitCropBox(false, true);
|
|
|
|
cropBoxData.left = Math.min(Math.max(
|
|
cropBoxData.left, cropBoxData.minLeft),
|
|
cropBoxData.maxLeft);
|
|
cropBoxData.top = Math.min(Math.max(
|
|
cropBoxData.top, cropBoxData.minTop),
|
|
cropBoxData.maxTop);
|
|
cropBoxData.oldLeft = cropBoxData.left;
|
|
cropBoxData.oldTop = cropBoxData.top;
|
|
|
|
if (options.movable && options.cropBoxMovable) {
|
|
// Turn to move the canvas when the crop box is
|
|
// equal to the container
|
|
setData(
|
|
this.face,
|
|
DATA_ACTION,
|
|
cropBoxData.width >= containerData.width
|
|
&& cropBoxData.height >= containerData.height ? ACTION_MOVE
|
|
: ACTION_ALL);
|
|
}
|
|
|
|
setStyle(this.cropBox, assign({
|
|
width : cropBoxData.width,
|
|
height : cropBoxData.height
|
|
}, getTransforms({
|
|
translateX : cropBoxData.left,
|
|
translateY : cropBoxData.top
|
|
})));
|
|
|
|
if (this.cropped && this.limited) {
|
|
this.limitCanvas(true, true);
|
|
}
|
|
|
|
if (!this.disabled) {
|
|
this.output();
|
|
}
|
|
},
|
|
output : function output() {
|
|
this.preview();
|
|
dispatchEvent(this.element, EVENT_CROP, this
|
|
.getData());
|
|
}
|
|
};
|
|
|
|
var preview = {
|
|
initPreview : function initPreview() {
|
|
var crossOrigin = this.crossOrigin;
|
|
var preview = this.options.preview;
|
|
|
|
var url = crossOrigin ? this.crossOriginUrl
|
|
: this.url;
|
|
var image = document.createElement('img');
|
|
|
|
if (crossOrigin) {
|
|
image.crossOrigin = crossOrigin;
|
|
}
|
|
|
|
image.src = url;
|
|
this.viewBox.appendChild(image);
|
|
this.viewBoxImage = image;
|
|
|
|
if (!preview) {
|
|
return;
|
|
}
|
|
|
|
var previews = preview;
|
|
|
|
if (typeof preview === 'string') {
|
|
previews = this.element.ownerDocument
|
|
.querySelectorAll(preview);
|
|
} else if (preview.querySelector) {
|
|
previews = [ preview ];
|
|
}
|
|
|
|
this.previews = previews;
|
|
|
|
forEach(previews, function(el) {
|
|
var img = document.createElement('img');
|
|
|
|
// Save the original size for recover
|
|
setData(el, DATA_PREVIEW, {
|
|
width : el.offsetWidth,
|
|
height : el.offsetHeight,
|
|
html : el.innerHTML
|
|
});
|
|
|
|
if (crossOrigin) {
|
|
img.crossOrigin = crossOrigin;
|
|
}
|
|
|
|
img.src = url;
|
|
|
|
/**
|
|
* Override img element styles Add
|
|
* `display:block` to avoid margin top issue Add
|
|
* `height:auto` to override `height` attribute
|
|
* on IE8 (Occur only when margin-top <=
|
|
* -height)
|
|
*/
|
|
img.style.cssText = 'display:block;'
|
|
+ 'width:100%;' + 'height:auto;'
|
|
+ 'min-width:0!important;'
|
|
+ 'min-height:0!important;'
|
|
+ 'max-width:none!important;'
|
|
+ 'max-height:none!important;'
|
|
+ 'image-orientation:0deg!important;"';
|
|
|
|
el.innerHTML = '';
|
|
el.appendChild(img);
|
|
});
|
|
},
|
|
resetPreview : function resetPreview() {
|
|
forEach(this.previews, function(element) {
|
|
var data = getData(element, DATA_PREVIEW);
|
|
|
|
setStyle(element, {
|
|
width : data.width,
|
|
height : data.height
|
|
});
|
|
|
|
element.innerHTML = data.html;
|
|
removeData(element, DATA_PREVIEW);
|
|
});
|
|
},
|
|
preview : function preview() {
|
|
var imageData = this.imageData, canvasData = this.canvasData, cropBoxData = this.cropBoxData;
|
|
var cropBoxWidth = cropBoxData.width, cropBoxHeight = cropBoxData.height;
|
|
var width = imageData.width, height = imageData.height;
|
|
|
|
var left = cropBoxData.left - canvasData.left
|
|
- imageData.left;
|
|
var top = cropBoxData.top - canvasData.top
|
|
- imageData.top;
|
|
|
|
if (!this.cropped || this.disabled) {
|
|
return;
|
|
}
|
|
|
|
setStyle(this.viewBoxImage, assign({
|
|
width : width,
|
|
height : height
|
|
}, getTransforms(assign({
|
|
translateX : -left,
|
|
translateY : -top
|
|
}, imageData))));
|
|
|
|
forEach(
|
|
this.previews,
|
|
function(element) {
|
|
var data = getData(element,
|
|
DATA_PREVIEW);
|
|
var originalWidth = data.width;
|
|
var originalHeight = data.height;
|
|
var newWidth = originalWidth;
|
|
var newHeight = originalHeight;
|
|
var ratio = 1;
|
|
|
|
if (cropBoxWidth) {
|
|
ratio = originalWidth
|
|
/ cropBoxWidth;
|
|
newHeight = cropBoxHeight * ratio;
|
|
}
|
|
|
|
if (cropBoxHeight
|
|
&& newHeight > originalHeight) {
|
|
ratio = originalHeight
|
|
/ cropBoxHeight;
|
|
newWidth = cropBoxWidth * ratio;
|
|
newHeight = originalHeight;
|
|
}
|
|
|
|
setStyle(element, {
|
|
width : newWidth,
|
|
height : newHeight
|
|
});
|
|
|
|
setStyle(
|
|
element
|
|
.getElementsByTagName('img')[0],
|
|
assign({
|
|
width : width * ratio,
|
|
height : height * ratio
|
|
}, getTransforms(assign({
|
|
translateX : -left * ratio,
|
|
translateY : -top * ratio
|
|
}, imageData))));
|
|
});
|
|
}
|
|
};
|
|
|
|
var events = {
|
|
bind : function bind() {
|
|
var element = this.element, options = this.options, cropper = this.cropper;
|
|
|
|
if (isFunction(options.cropstart)) {
|
|
addListener(element, EVENT_CROP_START,
|
|
options.cropstart);
|
|
}
|
|
|
|
if (isFunction(options.cropmove)) {
|
|
addListener(element, EVENT_CROP_MOVE,
|
|
options.cropmove);
|
|
}
|
|
|
|
if (isFunction(options.cropend)) {
|
|
addListener(element, EVENT_CROP_END,
|
|
options.cropend);
|
|
}
|
|
|
|
if (isFunction(options.crop)) {
|
|
addListener(element, EVENT_CROP, options.crop);
|
|
}
|
|
|
|
if (isFunction(options.zoom)) {
|
|
addListener(element, EVENT_ZOOM, options.zoom);
|
|
}
|
|
|
|
addListener(cropper, EVENT_POINTER_DOWN,
|
|
this.onCropStart = this.cropStart
|
|
.bind(this));
|
|
|
|
if (options.zoomable && options.zoomOnWheel) {
|
|
addListener(cropper, EVENT_WHEEL,
|
|
this.onWheel = this.wheel.bind(this));
|
|
}
|
|
|
|
if (options.toggleDragModeOnDblclick) {
|
|
addListener(cropper, EVENT_DBLCLICK,
|
|
this.onDblclick = this.dblclick
|
|
.bind(this));
|
|
}
|
|
|
|
addListener(element.ownerDocument,
|
|
EVENT_POINTER_MOVE,
|
|
this.onCropMove = this.cropMove.bind(this));
|
|
addListener(element.ownerDocument,
|
|
EVENT_POINTER_UP,
|
|
this.onCropEnd = this.cropEnd.bind(this));
|
|
|
|
if (options.responsive) {
|
|
addListener(window, EVENT_RESIZE,
|
|
this.onResize = this.resize.bind(this));
|
|
}
|
|
},
|
|
unbind : function unbind() {
|
|
var element = this.element, options = this.options, cropper = this.cropper;
|
|
|
|
if (isFunction(options.cropstart)) {
|
|
removeListener(element, EVENT_CROP_START,
|
|
options.cropstart);
|
|
}
|
|
|
|
if (isFunction(options.cropmove)) {
|
|
removeListener(element, EVENT_CROP_MOVE,
|
|
options.cropmove);
|
|
}
|
|
|
|
if (isFunction(options.cropend)) {
|
|
removeListener(element, EVENT_CROP_END,
|
|
options.cropend);
|
|
}
|
|
|
|
if (isFunction(options.crop)) {
|
|
removeListener(element, EVENT_CROP,
|
|
options.crop);
|
|
}
|
|
|
|
if (isFunction(options.zoom)) {
|
|
removeListener(element, EVENT_ZOOM,
|
|
options.zoom);
|
|
}
|
|
|
|
removeListener(cropper, EVENT_POINTER_DOWN,
|
|
this.onCropStart);
|
|
|
|
if (options.zoomable && options.zoomOnWheel) {
|
|
removeListener(cropper, EVENT_WHEEL,
|
|
this.onWheel);
|
|
}
|
|
|
|
if (options.toggleDragModeOnDblclick) {
|
|
removeListener(cropper, EVENT_DBLCLICK,
|
|
this.onDblclick);
|
|
}
|
|
|
|
removeListener(element.ownerDocument,
|
|
EVENT_POINTER_MOVE, this.onCropMove);
|
|
removeListener(element.ownerDocument,
|
|
EVENT_POINTER_UP, this.onCropEnd);
|
|
|
|
if (options.responsive) {
|
|
removeListener(window, EVENT_RESIZE,
|
|
this.onResize);
|
|
}
|
|
}
|
|
};
|
|
|
|
var handlers = {
|
|
resize : function resize() {
|
|
var options = this.options, container = this.container, containerData = this.containerData;
|
|
|
|
var minContainerWidth = Number(options.minContainerWidth) || 200;
|
|
var minContainerHeight = Number(options.minContainerHeight) || 100;
|
|
|
|
if (this.disabled
|
|
|| containerData.width <= minContainerWidth
|
|
|| containerData.height <= minContainerHeight) {
|
|
return;
|
|
}
|
|
|
|
var ratio = container.offsetWidth
|
|
/ containerData.width;
|
|
|
|
// Resize when width changed or height changed
|
|
if (ratio !== 1
|
|
|| container.offsetHeight !== containerData.height) {
|
|
var canvasData = void 0;
|
|
var cropBoxData = void 0;
|
|
|
|
if (options.restore) {
|
|
canvasData = this.getCanvasData();
|
|
cropBoxData = this.getCropBoxData();
|
|
}
|
|
|
|
this.render();
|
|
|
|
if (options.restore) {
|
|
this.setCanvasData(forEach(canvasData,
|
|
function(n, i) {
|
|
canvasData[i] = n * ratio;
|
|
}));
|
|
this.setCropBoxData(forEach(cropBoxData,
|
|
function(n, i) {
|
|
cropBoxData[i] = n * ratio;
|
|
}));
|
|
}
|
|
}
|
|
},
|
|
dblclick : function dblclick() {
|
|
if (this.disabled
|
|
|| this.options.dragMode === DRAG_MODE_NONE) {
|
|
return;
|
|
}
|
|
|
|
this
|
|
.setDragMode(hasClass(this.dragBox,
|
|
CLASS_CROP) ? DRAG_MODE_MOVE
|
|
: DRAG_MODE_CROP);
|
|
},
|
|
wheel : function wheel(e) {
|
|
var _this = this;
|
|
|
|
var ratio = Number(this.options.wheelZoomRatio) || 0.1;
|
|
var delta = 1;
|
|
|
|
if (this.disabled) {
|
|
return;
|
|
}
|
|
|
|
e.preventDefault();
|
|
|
|
// Limit wheel speed to prevent zoom too fast (#21)
|
|
if (this.wheeling) {
|
|
return;
|
|
}
|
|
|
|
this.wheeling = true;
|
|
|
|
setTimeout(function() {
|
|
_this.wheeling = false;
|
|
}, 50);
|
|
|
|
if (e.deltaY) {
|
|
delta = e.deltaY > 0 ? 1 : -1;
|
|
} else if (e.wheelDelta) {
|
|
delta = -e.wheelDelta / 120;
|
|
} else if (e.detail) {
|
|
delta = e.detail > 0 ? 1 : -1;
|
|
}
|
|
|
|
this.zoom(-delta * ratio, e);
|
|
},
|
|
cropStart : function cropStart(e) {
|
|
if (this.disabled) {
|
|
return;
|
|
}
|
|
|
|
var options = this.options, pointers = this.pointers;
|
|
|
|
var action = void 0;
|
|
|
|
if (e.changedTouches) {
|
|
// Handle touch event
|
|
forEach(
|
|
e.changedTouches,
|
|
function(touch) {
|
|
pointers[touch.identifier] = getPointer(touch);
|
|
});
|
|
} else {
|
|
// Handle mouse event and pointer event
|
|
pointers[e.pointerId || 0] = getPointer(e);
|
|
}
|
|
|
|
if (Object.keys(pointers).length > 1
|
|
&& options.zoomable && options.zoomOnTouch) {
|
|
action = ACTION_ZOOM;
|
|
} else {
|
|
action = getData(e.target, DATA_ACTION);
|
|
}
|
|
|
|
if (!REGEXP_ACTIONS.test(action)) {
|
|
return;
|
|
}
|
|
|
|
if (dispatchEvent(this.element, EVENT_CROP_START, {
|
|
originalEvent : e,
|
|
action : action
|
|
}) === false) {
|
|
return;
|
|
}
|
|
|
|
e.preventDefault();
|
|
|
|
this.action = action;
|
|
this.cropping = false;
|
|
|
|
if (action === ACTION_CROP) {
|
|
this.cropping = true;
|
|
addClass(this.dragBox, CLASS_MODAL);
|
|
}
|
|
},
|
|
cropMove : function cropMove(e) {
|
|
var action = this.action;
|
|
|
|
if (this.disabled || !action) {
|
|
return;
|
|
}
|
|
|
|
var pointers = this.pointers;
|
|
|
|
e.preventDefault();
|
|
|
|
if (dispatchEvent(this.element, EVENT_CROP_MOVE, {
|
|
originalEvent : e,
|
|
action : action
|
|
}) === false) {
|
|
return;
|
|
}
|
|
|
|
if (e.changedTouches) {
|
|
forEach(e.changedTouches, function(touch) {
|
|
assign(pointers[touch.identifier],
|
|
getPointer(touch, true));
|
|
});
|
|
} else {
|
|
assign(pointers[e.pointerId || 0], getPointer(
|
|
e, true));
|
|
}
|
|
|
|
this.change(e);
|
|
},
|
|
cropEnd : function cropEnd(e) {
|
|
if (this.disabled) {
|
|
return;
|
|
}
|
|
|
|
var action = this.action, pointers = this.pointers;
|
|
|
|
if (e.changedTouches) {
|
|
forEach(e.changedTouches, function(touch) {
|
|
delete pointers[touch.identifier];
|
|
});
|
|
} else {
|
|
delete pointers[e.pointerId || 0];
|
|
}
|
|
|
|
if (!action) {
|
|
return;
|
|
}
|
|
|
|
e.preventDefault();
|
|
|
|
if (!Object.keys(pointers).length) {
|
|
this.action = '';
|
|
}
|
|
|
|
if (this.cropping) {
|
|
this.cropping = false;
|
|
toggleClass(this.dragBox, CLASS_MODAL,
|
|
this.cropped && this.options.modal);
|
|
}
|
|
|
|
dispatchEvent(this.element, EVENT_CROP_END, {
|
|
originalEvent : e,
|
|
action : action
|
|
});
|
|
}
|
|
};
|
|
|
|
var change = {
|
|
change : function change(e) {
|
|
var options = this.options, canvasData = this.canvasData, containerData = this.containerData, cropBoxData = this.cropBoxData, pointers = this.pointers;
|
|
var action = this.action;
|
|
var aspectRatio = options.aspectRatio;
|
|
var left = cropBoxData.left, top = cropBoxData.top, width = cropBoxData.width, height = cropBoxData.height;
|
|
|
|
var right = left + width;
|
|
var bottom = top + height;
|
|
var minLeft = 0;
|
|
var minTop = 0;
|
|
var maxWidth = containerData.width;
|
|
var maxHeight = containerData.height;
|
|
var renderable = true;
|
|
var offset = void 0;
|
|
|
|
// Locking aspect ratio in "free mode" by holding
|
|
// shift key
|
|
if (!aspectRatio && e.shiftKey) {
|
|
aspectRatio = width && height ? width / height
|
|
: 1;
|
|
}
|
|
|
|
if (this.limited) {
|
|
minLeft = cropBoxData.minLeft;
|
|
minTop = cropBoxData.minTop;
|
|
|
|
maxWidth = minLeft
|
|
+ Math.min(containerData.width,
|
|
canvasData.width,
|
|
canvasData.left
|
|
+ canvasData.width);
|
|
maxHeight = minTop
|
|
+ Math.min(containerData.height,
|
|
canvasData.height,
|
|
canvasData.top
|
|
+ canvasData.height);
|
|
}
|
|
|
|
var pointer = pointers[Object.keys(pointers)[0]];
|
|
var range = {
|
|
x : pointer.endX - pointer.startX,
|
|
y : pointer.endY - pointer.startY
|
|
};
|
|
var check = function check(side) {
|
|
switch (side) {
|
|
case ACTION_EAST:
|
|
if (right + range.x > maxWidth) {
|
|
range.x = maxWidth - right;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_WEST:
|
|
if (left + range.x < minLeft) {
|
|
range.x = minLeft - left;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_NORTH:
|
|
if (top + range.y < minTop) {
|
|
range.y = minTop - top;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_SOUTH:
|
|
if (bottom + range.y > maxHeight) {
|
|
range.y = maxHeight - bottom;
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
}
|
|
};
|
|
|
|
switch (action) {
|
|
// Move crop box
|
|
case ACTION_ALL:
|
|
left += range.x;
|
|
top += range.y;
|
|
break;
|
|
|
|
// Resize crop box
|
|
case ACTION_EAST:
|
|
if (range.x >= 0
|
|
&& (right >= maxWidth || aspectRatio
|
|
&& (top <= minTop || bottom >= maxHeight))) {
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
check(ACTION_EAST);
|
|
width += range.x;
|
|
|
|
if (aspectRatio) {
|
|
height = width / aspectRatio;
|
|
top -= range.x / aspectRatio / 2;
|
|
}
|
|
|
|
if (width < 0) {
|
|
action = ACTION_WEST;
|
|
width = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_NORTH:
|
|
if (range.y <= 0
|
|
&& (top <= minTop || aspectRatio
|
|
&& (left <= minLeft || right >= maxWidth))) {
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
check(ACTION_NORTH);
|
|
height -= range.y;
|
|
top += range.y;
|
|
|
|
if (aspectRatio) {
|
|
width = height * aspectRatio;
|
|
left += range.y * aspectRatio / 2;
|
|
}
|
|
|
|
if (height < 0) {
|
|
action = ACTION_SOUTH;
|
|
height = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_WEST:
|
|
if (range.x <= 0
|
|
&& (left <= minLeft || aspectRatio
|
|
&& (top <= minTop || bottom >= maxHeight))) {
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
check(ACTION_WEST);
|
|
width -= range.x;
|
|
left += range.x;
|
|
|
|
if (aspectRatio) {
|
|
height = width / aspectRatio;
|
|
top += range.x / aspectRatio / 2;
|
|
}
|
|
|
|
if (width < 0) {
|
|
action = ACTION_EAST;
|
|
width = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_SOUTH:
|
|
if (range.y >= 0
|
|
&& (bottom >= maxHeight || aspectRatio
|
|
&& (left <= minLeft || right >= maxWidth))) {
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
check(ACTION_SOUTH);
|
|
height += range.y;
|
|
|
|
if (aspectRatio) {
|
|
width = height * aspectRatio;
|
|
left -= range.y * aspectRatio / 2;
|
|
}
|
|
|
|
if (height < 0) {
|
|
action = ACTION_NORTH;
|
|
height = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_NORTH_EAST:
|
|
if (aspectRatio) {
|
|
if (range.y <= 0
|
|
&& (top <= minTop || right >= maxWidth)) {
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
check(ACTION_NORTH);
|
|
height -= range.y;
|
|
top += range.y;
|
|
width = height * aspectRatio;
|
|
} else {
|
|
check(ACTION_NORTH);
|
|
check(ACTION_EAST);
|
|
|
|
if (range.x >= 0) {
|
|
if (right < maxWidth) {
|
|
width += range.x;
|
|
} else if (range.y <= 0
|
|
&& top <= minTop) {
|
|
renderable = false;
|
|
}
|
|
} else {
|
|
width += range.x;
|
|
}
|
|
|
|
if (range.y <= 0) {
|
|
if (top > minTop) {
|
|
height -= range.y;
|
|
top += range.y;
|
|
}
|
|
} else {
|
|
height -= range.y;
|
|
top += range.y;
|
|
}
|
|
}
|
|
|
|
if (width < 0 && height < 0) {
|
|
action = ACTION_SOUTH_WEST;
|
|
height = 0;
|
|
width = 0;
|
|
} else if (width < 0) {
|
|
action = ACTION_NORTH_WEST;
|
|
width = 0;
|
|
} else if (height < 0) {
|
|
action = ACTION_SOUTH_EAST;
|
|
height = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_NORTH_WEST:
|
|
if (aspectRatio) {
|
|
if (range.y <= 0
|
|
&& (top <= minTop || left <= minLeft)) {
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
check(ACTION_NORTH);
|
|
height -= range.y;
|
|
top += range.y;
|
|
width = height * aspectRatio;
|
|
left += range.y * aspectRatio;
|
|
} else {
|
|
check(ACTION_NORTH);
|
|
check(ACTION_WEST);
|
|
|
|
if (range.x <= 0) {
|
|
if (left > minLeft) {
|
|
width -= range.x;
|
|
left += range.x;
|
|
} else if (range.y <= 0
|
|
&& top <= minTop) {
|
|
renderable = false;
|
|
}
|
|
} else {
|
|
width -= range.x;
|
|
left += range.x;
|
|
}
|
|
|
|
if (range.y <= 0) {
|
|
if (top > minTop) {
|
|
height -= range.y;
|
|
top += range.y;
|
|
}
|
|
} else {
|
|
height -= range.y;
|
|
top += range.y;
|
|
}
|
|
}
|
|
|
|
if (width < 0 && height < 0) {
|
|
action = ACTION_SOUTH_EAST;
|
|
height = 0;
|
|
width = 0;
|
|
} else if (width < 0) {
|
|
action = ACTION_NORTH_EAST;
|
|
width = 0;
|
|
} else if (height < 0) {
|
|
action = ACTION_SOUTH_WEST;
|
|
height = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_SOUTH_WEST:
|
|
if (aspectRatio) {
|
|
if (range.x <= 0
|
|
&& (left <= minLeft || bottom >= maxHeight)) {
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
check(ACTION_WEST);
|
|
width -= range.x;
|
|
left += range.x;
|
|
height = width / aspectRatio;
|
|
} else {
|
|
check(ACTION_SOUTH);
|
|
check(ACTION_WEST);
|
|
|
|
if (range.x <= 0) {
|
|
if (left > minLeft) {
|
|
width -= range.x;
|
|
left += range.x;
|
|
} else if (range.y >= 0
|
|
&& bottom >= maxHeight) {
|
|
renderable = false;
|
|
}
|
|
} else {
|
|
width -= range.x;
|
|
left += range.x;
|
|
}
|
|
|
|
if (range.y >= 0) {
|
|
if (bottom < maxHeight) {
|
|
height += range.y;
|
|
}
|
|
} else {
|
|
height += range.y;
|
|
}
|
|
}
|
|
|
|
if (width < 0 && height < 0) {
|
|
action = ACTION_NORTH_EAST;
|
|
height = 0;
|
|
width = 0;
|
|
} else if (width < 0) {
|
|
action = ACTION_SOUTH_EAST;
|
|
width = 0;
|
|
} else if (height < 0) {
|
|
action = ACTION_NORTH_WEST;
|
|
height = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
case ACTION_SOUTH_EAST:
|
|
if (aspectRatio) {
|
|
if (range.x >= 0
|
|
&& (right >= maxWidth || bottom >= maxHeight)) {
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
check(ACTION_EAST);
|
|
width += range.x;
|
|
height = width / aspectRatio;
|
|
} else {
|
|
check(ACTION_SOUTH);
|
|
check(ACTION_EAST);
|
|
|
|
if (range.x >= 0) {
|
|
if (right < maxWidth) {
|
|
width += range.x;
|
|
} else if (range.y >= 0
|
|
&& bottom >= maxHeight) {
|
|
renderable = false;
|
|
}
|
|
} else {
|
|
width += range.x;
|
|
}
|
|
|
|
if (range.y >= 0) {
|
|
if (bottom < maxHeight) {
|
|
height += range.y;
|
|
}
|
|
} else {
|
|
height += range.y;
|
|
}
|
|
}
|
|
|
|
if (width < 0 && height < 0) {
|
|
action = ACTION_NORTH_WEST;
|
|
height = 0;
|
|
width = 0;
|
|
} else if (width < 0) {
|
|
action = ACTION_SOUTH_WEST;
|
|
width = 0;
|
|
} else if (height < 0) {
|
|
action = ACTION_NORTH_EAST;
|
|
height = 0;
|
|
}
|
|
|
|
break;
|
|
|
|
// Move canvas
|
|
case ACTION_MOVE:
|
|
this.move(range.x, range.y);
|
|
renderable = false;
|
|
break;
|
|
|
|
// Zoom canvas
|
|
case ACTION_ZOOM:
|
|
this.zoom(getMaxZoomRatio(pointers), e);
|
|
renderable = false;
|
|
break;
|
|
|
|
// Create crop box
|
|
case ACTION_CROP:
|
|
if (!range.x || !range.y) {
|
|
renderable = false;
|
|
break;
|
|
}
|
|
|
|
offset = getOffset(this.cropper);
|
|
left = pointer.startX - offset.left;
|
|
top = pointer.startY - offset.top;
|
|
width = cropBoxData.minWidth;
|
|
height = cropBoxData.minHeight;
|
|
|
|
if (range.x > 0) {
|
|
action = range.y > 0 ? ACTION_SOUTH_EAST
|
|
: ACTION_NORTH_EAST;
|
|
} else if (range.x < 0) {
|
|
left -= width;
|
|
action = range.y > 0 ? ACTION_SOUTH_WEST
|
|
: ACTION_NORTH_WEST;
|
|
}
|
|
|
|
if (range.y < 0) {
|
|
top -= height;
|
|
}
|
|
|
|
// Show the crop box if is hidden
|
|
if (!this.cropped) {
|
|
removeClass(this.cropBox, CLASS_HIDDEN);
|
|
this.cropped = true;
|
|
|
|
if (this.limited) {
|
|
this.limitCropBox(true, true);
|
|
}
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
}
|
|
|
|
if (renderable) {
|
|
cropBoxData.width = width;
|
|
cropBoxData.height = height;
|
|
cropBoxData.left = left;
|
|
cropBoxData.top = top;
|
|
this.action = action;
|
|
this.renderCropBox();
|
|
}
|
|
|
|
// Override
|
|
forEach(pointers, function(p) {
|
|
p.startX = p.endX;
|
|
p.startY = p.endY;
|
|
});
|
|
}
|
|
};
|
|
|
|
var methods = {
|
|
// Show the crop box manually
|
|
crop : function crop() {
|
|
if (this.ready && !this.cropped && !this.disabled) {
|
|
this.cropped = true;
|
|
this.limitCropBox(true, true);
|
|
|
|
if (this.options.modal) {
|
|
addClass(this.dragBox, CLASS_MODAL);
|
|
}
|
|
|
|
removeClass(this.cropBox, CLASS_HIDDEN);
|
|
this.setCropBoxData(this.initialCropBoxData);
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
// Reset the image and crop box to their initial states
|
|
reset : function reset() {
|
|
if (this.ready && !this.disabled) {
|
|
this.imageData = assign({},
|
|
this.initialImageData);
|
|
this.canvasData = assign({},
|
|
this.initialCanvasData);
|
|
this.cropBoxData = assign({},
|
|
this.initialCropBoxData);
|
|
this.renderCanvas();
|
|
|
|
if (this.cropped) {
|
|
this.renderCropBox();
|
|
}
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
// Clear the crop box
|
|
clear : function clear() {
|
|
if (this.cropped && !this.disabled) {
|
|
assign(this.cropBoxData, {
|
|
left : 0,
|
|
top : 0,
|
|
width : 0,
|
|
height : 0
|
|
});
|
|
|
|
this.cropped = false;
|
|
this.renderCropBox();
|
|
this.limitCanvas(true, true);
|
|
|
|
// Render canvas after crop box rendered
|
|
this.renderCanvas();
|
|
removeClass(this.dragBox, CLASS_MODAL);
|
|
addClass(this.cropBox, CLASS_HIDDEN);
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Replace the image's src and rebuild the cropper
|
|
*
|
|
* @param {string}
|
|
* url - The new URL.
|
|
* @param {boolean}
|
|
* [hasSameSize] - Indicate if the new image
|
|
* has the same size as the old one.
|
|
* @returns {Cropper} this
|
|
*/
|
|
replace : function replace(url) {
|
|
var hasSameSize = arguments.length > 1
|
|
&& arguments[1] !== undefined ? arguments[1]
|
|
: false;
|
|
|
|
if (!this.disabled && url) {
|
|
if (this.isImg) {
|
|
this.element.src = url;
|
|
}
|
|
|
|
if (hasSameSize) {
|
|
this.url = url;
|
|
this.image.src = url;
|
|
|
|
if (this.ready) {
|
|
this.viewBoxImage.src = url;
|
|
|
|
forEach(
|
|
this.previews,
|
|
function(element) {
|
|
element
|
|
.getElementsByTagName('img')[0].src = url;
|
|
});
|
|
}
|
|
} else {
|
|
if (this.isImg) {
|
|
this.replaced = true;
|
|
}
|
|
|
|
this.options.data = null;
|
|
this.uncreate();
|
|
this.load(url);
|
|
}
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
// Enable (unfreeze) the cropper
|
|
enable : function enable() {
|
|
if (this.ready && this.disabled) {
|
|
this.disabled = false;
|
|
removeClass(this.cropper, CLASS_DISABLED);
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
// Disable (freeze) the cropper
|
|
disable : function disable() {
|
|
if (this.ready && !this.disabled) {
|
|
this.disabled = true;
|
|
addClass(this.cropper, CLASS_DISABLED);
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Destroy the cropper and remove the instance from the
|
|
* image
|
|
*
|
|
* @returns {Cropper} this
|
|
*/
|
|
destroy : function destroy() {
|
|
var element = this.element;
|
|
|
|
if (!getData(element, NAMESPACE)) {
|
|
return this;
|
|
}
|
|
|
|
if (this.isImg && this.replaced) {
|
|
element.src = this.originalUrl;
|
|
}
|
|
|
|
this.uncreate();
|
|
removeData(element, NAMESPACE);
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Move the canvas with relative offsets
|
|
*
|
|
* @param {number}
|
|
* offsetX - The relative offset distance on
|
|
* the x-axis.
|
|
* @param {number}
|
|
* [offsetY=offsetX] - The relative offset
|
|
* distance on the y-axis.
|
|
* @returns {Cropper} this
|
|
*/
|
|
move : function move(offsetX) {
|
|
var offsetY = arguments.length > 1
|
|
&& arguments[1] !== undefined ? arguments[1]
|
|
: offsetX;
|
|
var _canvasData = this.canvasData, left = _canvasData.left, top = _canvasData.top;
|
|
|
|
return this.moveTo(isUndefined(offsetX) ? offsetX
|
|
: left + Number(offsetX),
|
|
isUndefined(offsetY) ? offsetY : top
|
|
+ Number(offsetY));
|
|
},
|
|
|
|
/**
|
|
* Move the canvas to an absolute point
|
|
*
|
|
* @param {number}
|
|
* x - The x-axis coordinate.
|
|
* @param {number}
|
|
* [y=x] - The y-axis coordinate.
|
|
* @returns {Cropper} this
|
|
*/
|
|
moveTo : function moveTo(x) {
|
|
var y = arguments.length > 1
|
|
&& arguments[1] !== undefined ? arguments[1]
|
|
: x;
|
|
var canvasData = this.canvasData;
|
|
|
|
var changed = false;
|
|
|
|
x = Number(x);
|
|
y = Number(y);
|
|
|
|
if (this.ready && !this.disabled
|
|
&& this.options.movable) {
|
|
if (isNumber(x)) {
|
|
canvasData.left = x;
|
|
changed = true;
|
|
}
|
|
|
|
if (isNumber(y)) {
|
|
canvasData.top = y;
|
|
changed = true;
|
|
}
|
|
|
|
if (changed) {
|
|
this.renderCanvas(true);
|
|
}
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Zoom the canvas with a relative ratio
|
|
*
|
|
* @param {number}
|
|
* ratio - The target ratio.
|
|
* @param {Event}
|
|
* _originalEvent - The original event if
|
|
* any.
|
|
* @returns {Cropper} this
|
|
*/
|
|
zoom : function zoom(ratio, _originalEvent) {
|
|
var canvasData = this.canvasData;
|
|
|
|
ratio = Number(ratio);
|
|
|
|
if (ratio < 0) {
|
|
ratio = 1 / (1 - ratio);
|
|
} else {
|
|
ratio = 1 + ratio;
|
|
}
|
|
|
|
return this.zoomTo(canvasData.width * ratio
|
|
/ canvasData.naturalWidth, null,
|
|
_originalEvent);
|
|
},
|
|
|
|
/**
|
|
* Zoom the canvas to an absolute ratio
|
|
*
|
|
* @param {number}
|
|
* ratio - The target ratio.
|
|
* @param {Object}
|
|
* pivot - The zoom pivot point coordinate.
|
|
* @param {Event}
|
|
* _originalEvent - The original event if
|
|
* any.
|
|
* @returns {Cropper} this
|
|
*/
|
|
zoomTo : function zoomTo(ratio, pivot, _originalEvent) {
|
|
var options = this.options, canvasData = this.canvasData;
|
|
var width = canvasData.width, height = canvasData.height, naturalWidth = canvasData.naturalWidth, naturalHeight = canvasData.naturalHeight;
|
|
|
|
ratio = Number(ratio);
|
|
|
|
if (ratio >= 0 && this.ready && !this.disabled
|
|
&& options.zoomable) {
|
|
var newWidth = naturalWidth * ratio;
|
|
var newHeight = naturalHeight * ratio;
|
|
|
|
if (dispatchEvent(this.element, EVENT_ZOOM, {
|
|
originalEvent : _originalEvent,
|
|
oldRatio : width / naturalWidth,
|
|
ratio : newWidth / naturalWidth
|
|
}) === false) {
|
|
return this;
|
|
}
|
|
|
|
if (_originalEvent) {
|
|
var pointers = this.pointers;
|
|
|
|
var offset = getOffset(this.cropper);
|
|
var center = pointers
|
|
&& Object.keys(pointers).length ? getPointersCenter(pointers)
|
|
: {
|
|
pageX : _originalEvent.pageX,
|
|
pageY : _originalEvent.pageY
|
|
};
|
|
|
|
// Zoom from the triggering point of the
|
|
// event
|
|
canvasData.left -= (newWidth - width)
|
|
* ((center.pageX - offset.left - canvasData.left) / width);
|
|
canvasData.top -= (newHeight - height)
|
|
* ((center.pageY - offset.top - canvasData.top) / height);
|
|
} else if (isPlainObject(pivot)
|
|
&& isNumber(pivot.x)
|
|
&& isNumber(pivot.y)) {
|
|
canvasData.left -= (newWidth - width)
|
|
* ((pivot.x - canvasData.left) / width);
|
|
canvasData.top -= (newHeight - height)
|
|
* ((pivot.y - canvasData.top) / height);
|
|
} else {
|
|
// Zoom from the center of the canvas
|
|
canvasData.left -= (newWidth - width) / 2;
|
|
canvasData.top -= (newHeight - height) / 2;
|
|
}
|
|
|
|
canvasData.width = newWidth;
|
|
canvasData.height = newHeight;
|
|
this.renderCanvas(true);
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Rotate the canvas with a relative degree
|
|
*
|
|
* @param {number}
|
|
* degree - The rotate degree.
|
|
* @returns {Cropper} this
|
|
*/
|
|
rotate : function rotate(degree) {
|
|
return this.rotateTo((this.imageData.rotate || 0)
|
|
+ Number(degree));
|
|
},
|
|
|
|
/**
|
|
* Rotate the canvas to an absolute degree
|
|
*
|
|
* @param {number}
|
|
* degree - The rotate degree.
|
|
* @returns {Cropper} this
|
|
*/
|
|
rotateTo : function rotateTo(degree) {
|
|
degree = Number(degree);
|
|
|
|
if (isNumber(degree) && this.ready
|
|
&& !this.disabled && this.options.rotatable) {
|
|
this.imageData.rotate = degree % 360;
|
|
this.renderCanvas(true, true);
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Scale the image on the x-axis.
|
|
*
|
|
* @param {number}
|
|
* scaleX - The scale ratio on the x-axis.
|
|
* @returns {Cropper} this
|
|
*/
|
|
scaleX : function scaleX(_scaleX) {
|
|
var scaleY = this.imageData.scaleY;
|
|
|
|
return this.scale(_scaleX,
|
|
isNumber(scaleY) ? scaleY : 1);
|
|
},
|
|
|
|
/**
|
|
* Scale the image on the y-axis.
|
|
*
|
|
* @param {number}
|
|
* scaleY - The scale ratio on the y-axis.
|
|
* @returns {Cropper} this
|
|
*/
|
|
scaleY : function scaleY(_scaleY) {
|
|
var scaleX = this.imageData.scaleX;
|
|
|
|
return this.scale(isNumber(scaleX) ? scaleX : 1,
|
|
_scaleY);
|
|
},
|
|
|
|
/**
|
|
* Scale the image
|
|
*
|
|
* @param {number}
|
|
* scaleX - The scale ratio on the x-axis.
|
|
* @param {number}
|
|
* [scaleY=scaleX] - The scale ratio on the
|
|
* y-axis.
|
|
* @returns {Cropper} this
|
|
*/
|
|
scale : function scale(scaleX) {
|
|
var scaleY = arguments.length > 1
|
|
&& arguments[1] !== undefined ? arguments[1]
|
|
: scaleX;
|
|
var imageData = this.imageData;
|
|
|
|
var transformed = false;
|
|
|
|
scaleX = Number(scaleX);
|
|
scaleY = Number(scaleY);
|
|
|
|
if (this.ready && !this.disabled
|
|
&& this.options.scalable) {
|
|
if (isNumber(scaleX)) {
|
|
imageData.scaleX = scaleX;
|
|
transformed = true;
|
|
}
|
|
|
|
if (isNumber(scaleY)) {
|
|
imageData.scaleY = scaleY;
|
|
transformed = true;
|
|
}
|
|
|
|
if (transformed) {
|
|
this.renderCanvas(true, true);
|
|
}
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Get the cropped area position and size data (base on
|
|
* the original image)
|
|
*
|
|
* @param {boolean}
|
|
* [rounded=false] - Indicate if round the
|
|
* data values or not.
|
|
* @returns {Object} The result cropped data.
|
|
*/
|
|
getData : function getData$$1() {
|
|
var rounded = arguments.length > 0
|
|
&& arguments[0] !== undefined ? arguments[0]
|
|
: false;
|
|
var options = this.options, imageData = this.imageData, canvasData = this.canvasData, cropBoxData = this.cropBoxData;
|
|
|
|
var data = void 0;
|
|
|
|
if (this.ready && this.cropped) {
|
|
data = {
|
|
x : cropBoxData.left - canvasData.left,
|
|
y : cropBoxData.top - canvasData.top,
|
|
width : cropBoxData.width,
|
|
height : cropBoxData.height
|
|
};
|
|
|
|
var ratio = imageData.width
|
|
/ imageData.naturalWidth;
|
|
|
|
forEach(data, function(n, i) {
|
|
n /= ratio;
|
|
data[i] = rounded ? Math.round(n) : n;
|
|
});
|
|
} else {
|
|
data = {
|
|
x : 0,
|
|
y : 0,
|
|
width : 0,
|
|
height : 0
|
|
};
|
|
}
|
|
|
|
if (options.rotatable) {
|
|
data.rotate = imageData.rotate || 0;
|
|
}
|
|
|
|
if (options.scalable) {
|
|
data.scaleX = imageData.scaleX || 1;
|
|
data.scaleY = imageData.scaleY || 1;
|
|
}
|
|
|
|
return data;
|
|
},
|
|
|
|
/**
|
|
* Set the cropped area position and size with new data
|
|
*
|
|
* @param {Object}
|
|
* data - The new data.
|
|
* @returns {Cropper} this
|
|
*/
|
|
setData : function setData$$1(data) {
|
|
var options = this.options, imageData = this.imageData, canvasData = this.canvasData;
|
|
|
|
var cropBoxData = {};
|
|
|
|
if (this.ready && !this.disabled
|
|
&& isPlainObject(data)) {
|
|
var transformed = false;
|
|
|
|
if (options.rotatable) {
|
|
if (isNumber(data.rotate)
|
|
&& data.rotate !== imageData.rotate) {
|
|
imageData.rotate = data.rotate;
|
|
transformed = true;
|
|
}
|
|
}
|
|
|
|
if (options.scalable) {
|
|
if (isNumber(data.scaleX)
|
|
&& data.scaleX !== imageData.scaleX) {
|
|
imageData.scaleX = data.scaleX;
|
|
transformed = true;
|
|
}
|
|
|
|
if (isNumber(data.scaleY)
|
|
&& data.scaleY !== imageData.scaleY) {
|
|
imageData.scaleY = data.scaleY;
|
|
transformed = true;
|
|
}
|
|
}
|
|
|
|
if (transformed) {
|
|
this.renderCanvas(true, true);
|
|
}
|
|
|
|
var ratio = imageData.width
|
|
/ imageData.naturalWidth;
|
|
|
|
if (isNumber(data.x)) {
|
|
cropBoxData.left = data.x * ratio
|
|
+ canvasData.left;
|
|
}
|
|
|
|
if (isNumber(data.y)) {
|
|
cropBoxData.top = data.y * ratio
|
|
+ canvasData.top;
|
|
}
|
|
|
|
if (isNumber(data.width)) {
|
|
cropBoxData.width = data.width * ratio;
|
|
}
|
|
|
|
if (isNumber(data.height)) {
|
|
cropBoxData.height = data.height * ratio;
|
|
}
|
|
|
|
this.setCropBoxData(cropBoxData);
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Get the container size data.
|
|
*
|
|
* @returns {Object} The result container data.
|
|
*/
|
|
getContainerData : function getContainerData() {
|
|
return this.ready ? assign({}, this.containerData)
|
|
: {};
|
|
},
|
|
|
|
/**
|
|
* Get the image position and size data.
|
|
*
|
|
* @returns {Object} The result image data.
|
|
*/
|
|
getImageData : function getImageData() {
|
|
return this.sized ? assign({}, this.imageData) : {};
|
|
},
|
|
|
|
/**
|
|
* Get the canvas position and size data.
|
|
*
|
|
* @returns {Object} The result canvas data.
|
|
*/
|
|
getCanvasData : function getCanvasData() {
|
|
var canvasData = this.canvasData;
|
|
|
|
var data = {};
|
|
|
|
if (this.ready) {
|
|
forEach([ 'left', 'top', 'width', 'height',
|
|
'naturalWidth', 'naturalHeight' ],
|
|
function(n) {
|
|
data[n] = canvasData[n];
|
|
});
|
|
}
|
|
|
|
return data;
|
|
},
|
|
|
|
/**
|
|
* Set the canvas position and size with new data.
|
|
*
|
|
* @param {Object}
|
|
* data - The new canvas data.
|
|
* @returns {Cropper} this
|
|
*/
|
|
setCanvasData : function setCanvasData(data) {
|
|
var canvasData = this.canvasData;
|
|
var aspectRatio = canvasData.aspectRatio;
|
|
|
|
if (this.ready && !this.disabled
|
|
&& isPlainObject(data)) {
|
|
if (isNumber(data.left)) {
|
|
canvasData.left = data.left;
|
|
}
|
|
|
|
if (isNumber(data.top)) {
|
|
canvasData.top = data.top;
|
|
}
|
|
|
|
if (isNumber(data.width)) {
|
|
canvasData.width = data.width;
|
|
canvasData.height = data.width
|
|
/ aspectRatio;
|
|
} else if (isNumber(data.height)) {
|
|
canvasData.height = data.height;
|
|
canvasData.width = data.height
|
|
* aspectRatio;
|
|
}
|
|
|
|
this.renderCanvas(true);
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Get the crop box position and size data.
|
|
*
|
|
* @returns {Object} The result crop box data.
|
|
*/
|
|
getCropBoxData : function getCropBoxData() {
|
|
var cropBoxData = this.cropBoxData;
|
|
|
|
var data = void 0;
|
|
|
|
if (this.ready && this.cropped) {
|
|
data = {
|
|
left : cropBoxData.left,
|
|
top : cropBoxData.top,
|
|
width : cropBoxData.width,
|
|
height : cropBoxData.height
|
|
};
|
|
}
|
|
|
|
return data || {};
|
|
},
|
|
|
|
/**
|
|
* Set the crop box position and size with new data.
|
|
*
|
|
* @param {Object}
|
|
* data - The new crop box data.
|
|
* @returns {Cropper} this
|
|
*/
|
|
setCropBoxData : function setCropBoxData(data) {
|
|
var cropBoxData = this.cropBoxData;
|
|
var aspectRatio = this.options.aspectRatio;
|
|
|
|
var widthChanged = void 0;
|
|
var heightChanged = void 0;
|
|
|
|
if (this.ready && this.cropped && !this.disabled
|
|
&& isPlainObject(data)) {
|
|
if (isNumber(data.left)) {
|
|
cropBoxData.left = data.left;
|
|
}
|
|
|
|
if (isNumber(data.top)) {
|
|
cropBoxData.top = data.top;
|
|
}
|
|
|
|
if (isNumber(data.width)
|
|
&& data.width !== cropBoxData.width) {
|
|
widthChanged = true;
|
|
cropBoxData.width = data.width;
|
|
}
|
|
|
|
if (isNumber(data.height)
|
|
&& data.height !== cropBoxData.height) {
|
|
heightChanged = true;
|
|
cropBoxData.height = data.height;
|
|
}
|
|
|
|
if (aspectRatio) {
|
|
if (widthChanged) {
|
|
cropBoxData.height = cropBoxData.width
|
|
/ aspectRatio;
|
|
} else if (heightChanged) {
|
|
cropBoxData.width = cropBoxData.height
|
|
* aspectRatio;
|
|
}
|
|
}
|
|
|
|
this.renderCropBox();
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Get a canvas drawn the cropped image.
|
|
*
|
|
* @param {Object}
|
|
* [options={}] - The config options.
|
|
* @returns {HTMLCanvasElement} - The result canvas.
|
|
*/
|
|
getCroppedCanvas : function getCroppedCanvas() {
|
|
var options = arguments.length > 0
|
|
&& arguments[0] !== undefined ? arguments[0]
|
|
: {};
|
|
|
|
if (!this.ready || !window.HTMLCanvasElement) {
|
|
return null;
|
|
}
|
|
|
|
var canvasData = this.canvasData;
|
|
|
|
var source = getSourceCanvas(this.image,
|
|
this.imageData, canvasData, options);
|
|
|
|
// Returns the source canvas if it is not cropped.
|
|
if (!this.cropped) {
|
|
return source;
|
|
}
|
|
|
|
var _getData = this.getData(), initialX = _getData.x, initialY = _getData.y, initialWidth = _getData.width, initialHeight = _getData.height;
|
|
|
|
var ratio = source.width
|
|
/ Math.floor(canvasData.naturalWidth);
|
|
|
|
if (ratio !== 1) {
|
|
initialX *= ratio;
|
|
initialY *= ratio;
|
|
initialWidth *= ratio;
|
|
initialHeight *= ratio;
|
|
}
|
|
|
|
var aspectRatio = initialWidth / initialHeight;
|
|
var maxSizes = getAdjustedSizes({
|
|
aspectRatio : aspectRatio,
|
|
width : options.maxWidth || Infinity,
|
|
height : options.maxHeight || Infinity
|
|
});
|
|
var minSizes = getAdjustedSizes({
|
|
aspectRatio : aspectRatio,
|
|
width : options.minWidth || 0,
|
|
height : options.minHeight || 0
|
|
}, 'cover');
|
|
|
|
var _getAdjustedSizes = getAdjustedSizes({
|
|
aspectRatio : aspectRatio,
|
|
width : options.width
|
|
|| (ratio !== 1 ? source.width
|
|
: initialWidth),
|
|
height : options.height
|
|
|| (ratio !== 1 ? source.height
|
|
: initialHeight)
|
|
}), width = _getAdjustedSizes.width, height = _getAdjustedSizes.height;
|
|
|
|
width = Math.min(maxSizes.width, Math.max(
|
|
minSizes.width, width));
|
|
height = Math.min(maxSizes.height, Math.max(
|
|
minSizes.height, height));
|
|
|
|
var canvas = document.createElement('canvas');
|
|
var context = canvas.getContext('2d');
|
|
|
|
canvas.width = normalizeDecimalNumber(width);
|
|
canvas.height = normalizeDecimalNumber(height);
|
|
|
|
context.fillStyle = options.fillColor
|
|
|| 'transparent';
|
|
context.fillRect(0, 0, width, height);
|
|
|
|
var _options$imageSmoothi = options.imageSmoothingEnabled, imageSmoothingEnabled = _options$imageSmoothi === undefined ? true
|
|
: _options$imageSmoothi, imageSmoothingQuality = options.imageSmoothingQuality;
|
|
|
|
context.imageSmoothingEnabled = imageSmoothingEnabled;
|
|
|
|
if (imageSmoothingQuality) {
|
|
context.imageSmoothingQuality = imageSmoothingQuality;
|
|
}
|
|
|
|
// https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D.drawImage
|
|
var sourceWidth = source.width;
|
|
var sourceHeight = source.height;
|
|
|
|
// Source canvas parameters
|
|
var srcX = initialX;
|
|
var srcY = initialY;
|
|
var srcWidth = void 0;
|
|
var srcHeight = void 0;
|
|
|
|
// Destination canvas parameters
|
|
var dstX = void 0;
|
|
var dstY = void 0;
|
|
var dstWidth = void 0;
|
|
var dstHeight = void 0;
|
|
|
|
if (srcX <= -initialWidth || srcX > sourceWidth) {
|
|
srcX = 0;
|
|
srcWidth = 0;
|
|
dstX = 0;
|
|
dstWidth = 0;
|
|
} else if (srcX <= 0) {
|
|
dstX = -srcX;
|
|
srcX = 0;
|
|
srcWidth = Math.min(sourceWidth, initialWidth
|
|
+ srcX);
|
|
dstWidth = srcWidth;
|
|
} else if (srcX <= sourceWidth) {
|
|
dstX = 0;
|
|
srcWidth = Math.min(initialWidth, sourceWidth
|
|
- srcX);
|
|
dstWidth = srcWidth;
|
|
}
|
|
|
|
if (srcWidth <= 0 || srcY <= -initialHeight
|
|
|| srcY > sourceHeight) {
|
|
srcY = 0;
|
|
srcHeight = 0;
|
|
dstY = 0;
|
|
dstHeight = 0;
|
|
} else if (srcY <= 0) {
|
|
dstY = -srcY;
|
|
srcY = 0;
|
|
srcHeight = Math.min(sourceHeight,
|
|
initialHeight + srcY);
|
|
dstHeight = srcHeight;
|
|
} else if (srcY <= sourceHeight) {
|
|
dstY = 0;
|
|
srcHeight = Math.min(initialHeight,
|
|
sourceHeight - srcY);
|
|
dstHeight = srcHeight;
|
|
}
|
|
|
|
var params = [ srcX, srcY, srcWidth, srcHeight ];
|
|
|
|
// Avoid "IndexSizeError"
|
|
if (dstWidth > 0 && dstHeight > 0) {
|
|
var scale = width / initialWidth;
|
|
|
|
params.push(dstX * scale, dstY * scale,
|
|
dstWidth * scale, dstHeight * scale);
|
|
}
|
|
|
|
// All the numerical parameters should be integer
|
|
// for `drawImage`
|
|
// https://github.com/fengyuanchen/cropper/issues/476
|
|
context.drawImage
|
|
.apply(
|
|
context,
|
|
[ source ]
|
|
.concat(toConsumableArray(params
|
|
.map(function(param) {
|
|
return Math
|
|
.floor(normalizeDecimalNumber(param));
|
|
}))));
|
|
|
|
return canvas;
|
|
},
|
|
|
|
/**
|
|
* Change the aspect ratio of the crop box.
|
|
*
|
|
* @param {number}
|
|
* aspectRatio - The new aspect ratio.
|
|
* @returns {Cropper} this
|
|
*/
|
|
setAspectRatio : function setAspectRatio(aspectRatio) {
|
|
var options = this.options;
|
|
|
|
if (!this.disabled && !isUndefined(aspectRatio)) {
|
|
// 0 -> NaN
|
|
options.aspectRatio = Math.max(0, aspectRatio)
|
|
|| NaN;
|
|
|
|
if (this.ready) {
|
|
this.initCropBox();
|
|
|
|
if (this.cropped) {
|
|
this.renderCropBox();
|
|
}
|
|
}
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Change the drag mode.
|
|
*
|
|
* @param {string}
|
|
* mode - The new drag mode.
|
|
* @returns {Cropper} this
|
|
*/
|
|
setDragMode : function setDragMode(mode) {
|
|
var options = this.options, dragBox = this.dragBox, face = this.face;
|
|
|
|
if (this.ready && !this.disabled) {
|
|
var croppable = mode === DRAG_MODE_CROP;
|
|
var movable = options.movable
|
|
&& mode === DRAG_MODE_MOVE;
|
|
|
|
mode = croppable || movable ? mode
|
|
: DRAG_MODE_NONE;
|
|
|
|
options.dragMode = mode;
|
|
setData(dragBox, DATA_ACTION, mode);
|
|
toggleClass(dragBox, CLASS_CROP, croppable);
|
|
toggleClass(dragBox, CLASS_MOVE, movable);
|
|
|
|
if (!options.cropBoxMovable) {
|
|
// Sync drag mode to crop box when it is not
|
|
// movable
|
|
setData(face, DATA_ACTION, mode);
|
|
toggleClass(face, CLASS_CROP, croppable);
|
|
toggleClass(face, CLASS_MOVE, movable);
|
|
}
|
|
}
|
|
|
|
return this;
|
|
}
|
|
};
|
|
|
|
var AnotherCropper = WINDOW.Cropper;
|
|
|
|
var Cropper = function() {
|
|
/**
|
|
* Create a new Cropper.
|
|
*
|
|
* @param {Element}
|
|
* element - The target element for cropping.
|
|
* @param {Object}
|
|
* [options={}] - The configuration options.
|
|
*/
|
|
function Cropper(element) {
|
|
var options = arguments.length > 1
|
|
&& arguments[1] !== undefined ? arguments[1]
|
|
: {};
|
|
classCallCheck(this, Cropper);
|
|
|
|
if (!element
|
|
|| !REGEXP_TAG_NAME.test(element.tagName)) {
|
|
throw new Error(
|
|
'The first argument is required and must be an <img> or <canvas> element.');
|
|
}
|
|
|
|
this.element = element;
|
|
this.options = assign({}, DEFAULTS,
|
|
isPlainObject(options) && options);
|
|
this.cropped = false;
|
|
this.disabled = false;
|
|
this.pointers = {};
|
|
this.ready = false;
|
|
this.reloading = false;
|
|
this.replaced = false;
|
|
this.sized = false;
|
|
this.sizing = false;
|
|
this.init();
|
|
}
|
|
|
|
createClass(
|
|
Cropper,
|
|
[
|
|
{
|
|
key : 'init',
|
|
value : function init() {
|
|
var element = this.element;
|
|
|
|
var tagName = element.tagName
|
|
.toLowerCase();
|
|
var url = void 0;
|
|
|
|
if (getData(element, NAMESPACE)) {
|
|
return;
|
|
}
|
|
|
|
setData(element, NAMESPACE,
|
|
this);
|
|
|
|
if (tagName === 'img') {
|
|
this.isImg = true;
|
|
|
|
// e.g.: "img/picture.jpg"
|
|
url = element
|
|
.getAttribute('src')
|
|
|| '';
|
|
this.originalUrl = url;
|
|
|
|
// Stop when it's a blank
|
|
// image
|
|
if (!url) {
|
|
return;
|
|
}
|
|
|
|
// e.g.:
|
|
// "http://example.com/img/picture.jpg"
|
|
url = element.src;
|
|
} else if (tagName === 'canvas'
|
|
&& window.HTMLCanvasElement) {
|
|
url = element.toDataURL();
|
|
}
|
|
|
|
this.load(url);
|
|
}
|
|
},
|
|
{
|
|
key : 'load',
|
|
value : function load(url) {
|
|
var _this = this;
|
|
|
|
if (!url) {
|
|
return;
|
|
}
|
|
|
|
this.url = url;
|
|
this.imageData = {};
|
|
|
|
var element = this.element, options = this.options;
|
|
|
|
if (!options.checkOrientation
|
|
|| !window.ArrayBuffer) {
|
|
this.clone();
|
|
return;
|
|
}
|
|
|
|
// XMLHttpRequest disallows to
|
|
// open a Data URL in some
|
|
// browsers like IE11 and Safari
|
|
if (REGEXP_DATA_URL.test(url)) {
|
|
if (REGEXP_DATA_URL_JPEG
|
|
.test(url)) {
|
|
this
|
|
.read(dataURLToArrayBuffer(url));
|
|
} else {
|
|
this.clone();
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
var xhr = new XMLHttpRequest();
|
|
|
|
this.reloading = true;
|
|
this.xhr = xhr;
|
|
|
|
var done = function done() {
|
|
_this.reloading = false;
|
|
_this.xhr = null;
|
|
};
|
|
|
|
xhr.ontimeout = done;
|
|
xhr.onabort = done;
|
|
xhr.onerror = function() {
|
|
done();
|
|
_this.clone();
|
|
};
|
|
|
|
xhr.onload = function() {
|
|
done();
|
|
_this.read(xhr.response);
|
|
};
|
|
|
|
// Bust cache when there is a
|
|
// "crossOrigin" property
|
|
if (options.checkCrossOrigin
|
|
&& isCrossOriginURL(url)
|
|
&& element.crossOrigin) {
|
|
url = addTimestamp(url);
|
|
}
|
|
|
|
xhr.open('get', url);
|
|
xhr.responseType = 'arraybuffer';
|
|
xhr.withCredentials = element.crossOrigin === 'use-credentials';
|
|
xhr.send();
|
|
}
|
|
},
|
|
{
|
|
key : 'read',
|
|
value : function read(arrayBuffer) {
|
|
var options = this.options, imageData = this.imageData;
|
|
|
|
var orientation = getOrientation(arrayBuffer);
|
|
var rotate = 0;
|
|
var scaleX = 1;
|
|
var scaleY = 1;
|
|
|
|
if (orientation > 1) {
|
|
this.url = arrayBufferToDataURL(
|
|
arrayBuffer,
|
|
'image/jpeg');
|
|
|
|
var _parseOrientation = parseOrientation(orientation);
|
|
|
|
rotate = _parseOrientation.rotate;
|
|
scaleX = _parseOrientation.scaleX;
|
|
scaleY = _parseOrientation.scaleY;
|
|
}
|
|
|
|
if (options.rotatable) {
|
|
imageData.rotate = rotate;
|
|
}
|
|
|
|
if (options.scalable) {
|
|
imageData.scaleX = scaleX;
|
|
imageData.scaleY = scaleY;
|
|
}
|
|
|
|
this.clone();
|
|
}
|
|
},
|
|
{
|
|
key : 'clone',
|
|
value : function clone() {
|
|
var element = this.element, url = this.url;
|
|
|
|
var crossOrigin = void 0;
|
|
var crossOriginUrl = void 0;
|
|
|
|
if (this.options.checkCrossOrigin
|
|
&& isCrossOriginURL(url)) {
|
|
crossOrigin = element.crossOrigin;
|
|
|
|
if (crossOrigin) {
|
|
crossOriginUrl = url;
|
|
} else {
|
|
crossOrigin = 'anonymous';
|
|
|
|
// Bust cache when there
|
|
// is not a
|
|
// "crossOrigin"
|
|
// property
|
|
crossOriginUrl = addTimestamp(url);
|
|
}
|
|
}
|
|
|
|
this.crossOrigin = crossOrigin;
|
|
this.crossOriginUrl = crossOriginUrl;
|
|
|
|
var image = document
|
|
.createElement('img');
|
|
|
|
if (crossOrigin) {
|
|
image.crossOrigin = crossOrigin;
|
|
}
|
|
|
|
image.src = crossOriginUrl
|
|
|| url;
|
|
this.image = image;
|
|
image.onload = this.start
|
|
.bind(this);
|
|
image.onerror = this.stop
|
|
.bind(this);
|
|
addClass(image, CLASS_HIDE);
|
|
element.parentNode
|
|
.insertBefore(
|
|
image,
|
|
element.nextSibling);
|
|
}
|
|
},
|
|
{
|
|
key : 'start',
|
|
value : function start() {
|
|
var _this2 = this;
|
|
|
|
var image = this.isImg ? this.element
|
|
: this.image;
|
|
|
|
image.onload = null;
|
|
image.onerror = null;
|
|
this.sizing = true;
|
|
|
|
var IS_SAFARI = WINDOW.navigator
|
|
&& /(Macintosh|iPhone|iPod|iPad).*AppleWebKit/i
|
|
.test(WINDOW.navigator.userAgent);
|
|
var done = function done(
|
|
naturalWidth,
|
|
naturalHeight) {
|
|
assign(
|
|
_this2.imageData,
|
|
{
|
|
naturalWidth : naturalWidth,
|
|
naturalHeight : naturalHeight,
|
|
aspectRatio : naturalWidth
|
|
/ naturalHeight
|
|
});
|
|
_this2.sizing = false;
|
|
_this2.sized = true;
|
|
_this2.build();
|
|
};
|
|
|
|
// Modern browsers (except Safari)
|
|
if (image.naturalWidth
|
|
&& !IS_SAFARI) {
|
|
done(image.naturalWidth,
|
|
image.naturalHeight);
|
|
return;
|
|
}
|
|
|
|
var sizingImage = document
|
|
.createElement('img');
|
|
var body = document.body
|
|
|| document.documentElement;
|
|
|
|
this.sizingImage = sizingImage;
|
|
|
|
sizingImage.onload = function() {
|
|
done(sizingImage.width,
|
|
sizingImage.height);
|
|
|
|
if (!IS_SAFARI) {
|
|
body
|
|
.removeChild(sizingImage);
|
|
}
|
|
};
|
|
|
|
sizingImage.src = image.src;
|
|
|
|
// iOS Safari will convert the image automatically
|
|
// with its orientation once append it into DOM (#279)
|
|
if (!IS_SAFARI) {
|
|
sizingImage.style.cssText = 'left:0;'
|
|
+ 'max-height:none!important;'
|
|
+ 'max-width:none!important;'
|
|
+ 'min-height:0!important;'
|
|
+ 'min-width:0!important;'
|
|
+ 'opacity:0;'
|
|
+ 'position:absolute;'
|
|
+ 'top:0;'
|
|
+ 'z-index:-1;';
|
|
body
|
|
.appendChild(sizingImage);
|
|
}
|
|
}
|
|
},
|
|
{
|
|
key : 'stop',
|
|
value : function stop() {
|
|
var image = this.image;
|
|
|
|
image.onload = null;
|
|
image.onerror = null;
|
|
image.parentNode
|
|
.removeChild(image);
|
|
this.image = null;
|
|
}
|
|
},
|
|
{
|
|
key : 'build',
|
|
value : function build() {
|
|
if (!this.sized || this.ready) {
|
|
return;
|
|
}
|
|
|
|
var element = this.element, options = this.options, image = this.image;
|
|
|
|
// Create cropper elements
|
|
|
|
var container = element.parentNode;
|
|
var template = document
|
|
.createElement('div');
|
|
|
|
template.innerHTML = TEMPLATE;
|
|
|
|
var cropper = template
|
|
.querySelector('.'
|
|
+ NAMESPACE
|
|
+ '-container');
|
|
var canvas = cropper
|
|
.querySelector('.'
|
|
+ NAMESPACE
|
|
+ '-canvas');
|
|
var dragBox = cropper
|
|
.querySelector('.'
|
|
+ NAMESPACE
|
|
+ '-drag-box');
|
|
var cropBox = cropper
|
|
.querySelector('.'
|
|
+ NAMESPACE
|
|
+ '-crop-box');
|
|
var face = cropBox
|
|
.querySelector('.'
|
|
+ NAMESPACE
|
|
+ '-face');
|
|
|
|
this.container = container;
|
|
this.cropper = cropper;
|
|
this.canvas = canvas;
|
|
this.dragBox = dragBox;
|
|
this.cropBox = cropBox;
|
|
this.viewBox = cropper
|
|
.querySelector('.'
|
|
+ NAMESPACE
|
|
+ '-view-box');
|
|
this.face = face;
|
|
|
|
canvas.appendChild(image);
|
|
|
|
// Hide the original image
|
|
addClass(element, CLASS_HIDDEN);
|
|
|
|
// Inserts the cropper after to the current image
|
|
container.insertBefore(cropper,
|
|
element.nextSibling);
|
|
|
|
// Show the image if is hidden
|
|
if (!this.isImg) {
|
|
removeClass(image,
|
|
CLASS_HIDE);
|
|
}
|
|
|
|
this.initPreview();
|
|
this.bind();
|
|
|
|
options.aspectRatio = Math.max(
|
|
0, options.aspectRatio)
|
|
|| NaN;
|
|
options.viewMode = Math
|
|
.max(
|
|
0,
|
|
Math
|
|
.min(
|
|
3,
|
|
Math
|
|
.round(options.viewMode))) || 0;
|
|
|
|
addClass(cropBox, CLASS_HIDDEN);
|
|
|
|
if (!options.guides) {
|
|
addClass(
|
|
cropBox
|
|
.getElementsByClassName(NAMESPACE
|
|
+ '-dashed'),
|
|
CLASS_HIDDEN);
|
|
}
|
|
|
|
if (!options.center) {
|
|
addClass(
|
|
cropBox
|
|
.getElementsByClassName(NAMESPACE
|
|
+ '-center'),
|
|
CLASS_HIDDEN);
|
|
}
|
|
|
|
if (options.background) {
|
|
addClass(cropper, NAMESPACE
|
|
+ '-bg');
|
|
}
|
|
|
|
if (!options.highlight) {
|
|
addClass(face,
|
|
CLASS_INVISIBLE);
|
|
}
|
|
|
|
if (options.cropBoxMovable) {
|
|
addClass(face, CLASS_MOVE);
|
|
setData(face, DATA_ACTION,
|
|
ACTION_ALL);
|
|
}
|
|
|
|
if (!options.cropBoxResizable) {
|
|
addClass(
|
|
cropBox
|
|
.getElementsByClassName(NAMESPACE
|
|
+ '-line'),
|
|
CLASS_HIDDEN);
|
|
addClass(
|
|
cropBox
|
|
.getElementsByClassName(NAMESPACE
|
|
+ '-point'),
|
|
CLASS_HIDDEN);
|
|
}
|
|
|
|
this.render();
|
|
this.ready = true;
|
|
this
|
|
.setDragMode(options.dragMode);
|
|
|
|
if (options.autoCrop) {
|
|
this.crop();
|
|
}
|
|
|
|
this.setData(options.data);
|
|
|
|
if (isFunction(options.ready)) {
|
|
addListener(element,
|
|
EVENT_READY,
|
|
options.ready, {
|
|
once : true
|
|
});
|
|
}
|
|
|
|
dispatchEvent(element,
|
|
EVENT_READY);
|
|
}
|
|
},
|
|
{
|
|
key : 'unbuild',
|
|
value : function unbuild() {
|
|
if (!this.ready) {
|
|
return;
|
|
}
|
|
|
|
this.ready = false;
|
|
this.unbind();
|
|
this.resetPreview();
|
|
this.cropper.parentNode
|
|
.removeChild(this.cropper);
|
|
removeClass(this.element,
|
|
CLASS_HIDDEN);
|
|
}
|
|
},
|
|
{
|
|
key : 'uncreate',
|
|
value : function uncreate() {
|
|
if (this.ready) {
|
|
this.unbuild();
|
|
this.ready = false;
|
|
this.cropped = false;
|
|
} else if (this.sizing) {
|
|
this.sizingImage.onload = null;
|
|
this.sizing = false;
|
|
this.sized = false;
|
|
} else if (this.reloading) {
|
|
this.xhr.abort();
|
|
} else if (this.image) {
|
|
this.stop();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the no conflict cropper class.
|
|
* @returns {Cropper} The cropper class.
|
|
*/
|
|
|
|
} ],
|
|
[
|
|
{
|
|
key : 'noConflict',
|
|
value : function noConflict() {
|
|
window.Cropper = AnotherCropper;
|
|
return Cropper;
|
|
}
|
|
|
|
/**
|
|
* Change the default options.
|
|
* @param {Object} options - The new default options.
|
|
*/
|
|
|
|
},
|
|
{
|
|
key : 'setDefaults',
|
|
value : function setDefaults(
|
|
options) {
|
|
assign(DEFAULTS,
|
|
isPlainObject(options)
|
|
&& options);
|
|
}
|
|
} ]);
|
|
return Cropper;
|
|
}();
|
|
|
|
assign(Cropper.prototype, render, preview, events,
|
|
handlers, change, methods);
|
|
|
|
return Cropper;
|
|
|
|
})));
|