/*! * Cropper v0.7.8 * https://github.com/fengyuanchen/cropper * * Copyright 2014-2015 Fengyuan Chen * Released under the MIT license */ (function (factory) { if (typeof define === "function" && define.amd) { // AMD. Register as anonymous module. define(["jquery"], factory); } else if (typeof exports === "object") { // Node / CommonJS factory(require("jquery")); } else { // Browser globals. factory(jQuery); } })(function ($) { "use strict"; var $window = $(window), $document = $(document), location = window.location, // Constants TRUE = true, FALSE = false, NULL = null, NAN = NaN, INFINITY = Infinity, STRING_UNDEFINED = "undefined", STRING_DIRECTIVE = "directive", CROPPER_NAMESPACE = ".cropper", // RegExps REGEXP_DIRECTIVES = /^(e|n|w|s|ne|nw|sw|se|all|crop|move|zoom)$/, REGEXP_OPTIONS = /^(x|y|width|height)$/, REGEXP_PROPERTIES = /^(naturalWidth|naturalHeight|width|height|aspectRatio|ratio|rotate)$/, // Classes CLASS_MODAL = "cropper-modal", CLASS_HIDDEN = "cropper-hidden", CLASS_INVISIBLE = "cropper-invisible", CLASS_MOVE = "cropper-move", CLASS_CROP = "cropper-crop", CLASS_DISABLED = "cropper-disabled", // Events EVENT_MOUSE_DOWN = "mousedown touchstart", EVENT_MOUSE_MOVE = "mousemove touchmove", EVENT_MOUSE_UP = "mouseup mouseleave touchend touchleave touchcancel", EVENT_WHEEL = "wheel mousewheel DOMMouseScroll", EVENT_RESIZE = "resize" + CROPPER_NAMESPACE, // Bind to window with namespace EVENT_DBLCLICK = "dblclick", EVENT_BUILD = "build" + CROPPER_NAMESPACE, EVENT_BUILT = "built" + CROPPER_NAMESPACE, EVENT_DRAG_START = "dragstart" + CROPPER_NAMESPACE, EVENT_DRAG_MOVE = "dragmove" + CROPPER_NAMESPACE, EVENT_DRAG_END = "dragend" + CROPPER_NAMESPACE, // Functions isNumber = function (n) { return typeof n === "number"; }, toArray = function (obj, offset) { var args = []; if (isNumber(offset)) { // It's necessary for IE8 args.push(offset); } return args.slice.apply(obj, args); }, // Custom proxy to avoid jQuery's guid proxy = function (fn, context) { var args = toArray(arguments, 2); return function () { return fn.apply(context, args.concat(toArray(arguments))); }; }, addTimestamp = function (url) { var timestamp = "timestamp=" + (new Date()).getTime(); return (url + (url.indexOf("?") === -1 ? "?" : "&") + timestamp); }, // Constructor Cropper = function (element, options) { this.element = element; this.$element = $(element); this.defaults = $.extend({}, Cropper.DEFAULTS, $.isPlainObject(options) ? options : {}); this.$original = NULL; this.ready = FALSE; this.built = FALSE; this.cropped = FALSE; this.rotated = FALSE; this.disabled = FALSE; this.replaced = FALSE; this.init(); }, // Others sqrt = Math.sqrt, min = Math.min, max = Math.max, abs = Math.abs, sin = Math.sin, cos = Math.cos, num = parseFloat; Cropper.prototype = { constructor: Cropper, support: { canvas: $.isFunction($("")[0].getContext) }, init: function () { var defaults = this.defaults; $.each(defaults, function (i, n) { switch (i) { case "aspectRatio": defaults[i] = abs(num(n)) || NAN; // 0 -> NaN break; case "autoCropArea": defaults[i] = abs(num(n)) || 0.8; // 0 | NaN -> 0.8 break; case "minWidth": case "minHeight": defaults[i] = abs(num(n)) || 0; // NaN -> 0 break; case "maxWidth": case "maxHeight": defaults[i] = abs(num(n)) || INFINITY; // 0 | NaN -> Infinity break; // No default } }); // Set default image data this.image = { rotate: 0 }; this.load(); }, load: function () { var _this = this, $this = this.$element, element = this.element, image = this.image, crossOrigin = "", $clone, url; if ($this.is("img")) { url = $this.prop("src"); } else if ($this.is("canvas") && this.support.canvas) { url = element.toDataURL(); } if (!url) { return; } // Reset image rotate degree if (this.replaced) { image.rotate = 0; } if (this.defaults.checkImageOrigin && this.isCrossOriginURL(url)) { crossOrigin = " crossOrigin"; url = addTimestamp(url); // Bust cache (#119, #148) } this.$clone = ($clone = $("')); $clone.one("load", function () { image.naturalWidth = this.naturalWidth || $clone.width(); image.naturalHeight = this.naturalHeight || $clone.height(); image.aspectRatio = image.naturalWidth / image.naturalHeight; _this.url = url; _this.ready = TRUE; _this.build(); }); // Hide and prepend the clone iamge to the document body (Don't append to). $clone.addClass(CLASS_INVISIBLE).prependTo("body"); }, isCrossOriginURL: function (url) { var parts = url.match(/^(https?:)\/\/([^\:\/\?#]+):?(\d*)/i); if ((parts && (parts[1] !== location.protocol || parts[2] !== location.hostname || parts[3] !== location.port))) { return TRUE; } return FALSE; }, build: function () { var $this = this.$element, defaults = this.defaults, buildEvent, $cropper; if (!this.ready) { return; } if (this.built) { this.unbuild(); } $this.one(EVENT_BUILD, defaults.build); // Only trigger once buildEvent = $.Event(EVENT_BUILD); $this.trigger(buildEvent); if (buildEvent.isDefaultPrevented()) { return; } // Create cropper elements this.$cropper = ($cropper = $(Cropper.TEMPLATE)); // Hide the original image $this.addClass(CLASS_HIDDEN); // Show and prepend the clone iamge to the cropper this.$clone.removeClass(CLASS_INVISIBLE).prependTo($cropper); // Save original image for rotation if (!this.rotated) { this.$original = this.$clone.clone(); // Append the image to document to avoid "NS_ERROR_NOT_AVAILABLE" error on Firefox when call the "drawImage" method. this.$original.addClass(CLASS_HIDDEN).prependTo(this.$cropper); this.originalImage = $.extend({}, this.image); } this.$container = $this.parent(); this.$container.append($cropper); this.$canvas = $cropper.find(".cropper-canvas"); this.$dragger = $cropper.find(".cropper-dragger"); this.$viewer = $cropper.find(".cropper-viewer"); defaults.autoCrop ? (this.cropped = TRUE) : this.$dragger.addClass(CLASS_HIDDEN); defaults.modal && this.$canvas.addClass(CLASS_MODAL); !defaults.dashed && this.$dragger.find(".cropper-dashed").addClass(CLASS_HIDDEN); !defaults.movable && this.$dragger.find(".cropper-face").data(STRING_DIRECTIVE, "move"); !defaults.resizable && this.$dragger.find(".cropper-line, .cropper-point").addClass(CLASS_HIDDEN); this.addListeners(); this.initPreview(); this.built = TRUE; // Set `true` before update defaults.dragCrop && this.setDragMode("crop"); // Set after built this.update(); this.replaced = FALSE; // Reset to `false` after update $this.one(EVENT_BUILT, defaults.built); // Only trigger once $this.trigger(EVENT_BUILT); }, unbuild: function () { if (!this.built) { return; } this.built = FALSE; this.removeListeners(); this.$preview.empty(); this.$preview = NULL; this.$dragger = NULL; this.$canvas = NULL; this.$container = NULL; this.$cropper.remove(); this.$cropper = NULL; }, update: function (data) { this.initContainer(); this.initCropper(); this.initImage(); this.initDragger(); if (data) { this.setData(data, TRUE); this.setDragMode("crop"); } else { this.setData(this.defaults.data); } }, resize: function () { clearTimeout(this.resizing); this.resizing = setTimeout($.proxy(this.update, this, this.getData()), 200); }, preview: function () { var image = this.image, dragger = this.dragger, width = image.width, height = image.height, left = dragger.left - image.left, top = dragger.top - image.top; this.$viewer.find("img").css({ width: width, height: height, marginLeft: -left, marginTop: -top }); this.$preview.each(function () { var $this = $(this), ratio = $this.width() / dragger.width; $this.find("img").css({ width: width * ratio, height: height * ratio, marginLeft: -left * ratio, marginTop: -top * ratio }); }); }, addListeners: function () { var defaults = this.defaults; this.$element.on(EVENT_DRAG_START, defaults.dragstart).on(EVENT_DRAG_MOVE, defaults.dragmove).on(EVENT_DRAG_END, defaults.dragend); this.$cropper.on(EVENT_MOUSE_DOWN, $.proxy(this.dragstart, this)).on(EVENT_DBLCLICK, $.proxy(this.dblclick, this)); if (defaults.zoomable) { this.$cropper.on(EVENT_WHEEL, $.proxy(this.wheel, this)); } if (defaults.multiple) { this.$cropper.on(EVENT_MOUSE_MOVE, $.proxy(this.dragmove, this)).on(EVENT_MOUSE_UP, $.proxy(this.dragend, this)); } else { $document.on(EVENT_MOUSE_MOVE, (this._dragmove = proxy(this.dragmove, this))).on(EVENT_MOUSE_UP, (this._dragend = proxy(this.dragend, this))); } $window.on(EVENT_RESIZE, (this._resize = proxy(this.resize, this))); }, removeListeners: function () { var defaults = this.defaults; this.$element.off(EVENT_DRAG_START, defaults.dragstart).off(EVENT_DRAG_MOVE, defaults.dragmove).off(EVENT_DRAG_END, defaults.dragend); this.$cropper.off(EVENT_MOUSE_DOWN, this.dragstart).off(EVENT_DBLCLICK, this.dblclick); if (defaults.zoomable) { this.$cropper.off(EVENT_WHEEL, this.wheel); } if (defaults.multiple) { this.$cropper.off(EVENT_MOUSE_MOVE, this.dragmove).off(EVENT_MOUSE_UP, this.dragend); } else { $document.off(EVENT_MOUSE_MOVE, this._dragmove).off(EVENT_MOUSE_UP, this._dragend); } $window.off(EVENT_RESIZE, this._resize); }, initPreview: function () { var img = ''; this.$preview = $(this.defaults.preview); this.$viewer.html(img); this.$preview.html(img).find("img").css("cssText", "min-width:0!important;min-height:0!important;max-width:none!important;max-height:none!important;"); }, initContainer: function () { var $container = this.$container, defaults = this.defaults; this.container = { width: max($container.width(), defaults.minContainerWidth), height: max($container.height(), defaults.minContainerHeight) }; }, initCropper: function () { var container = this.container, image = this.image, cropper; if (((image.naturalWidth * container.height / image.naturalHeight) - container.width) >= 0) { cropper = { width: container.width, height: container.width / image.aspectRatio, left: 0 }; cropper.top = (container.height - cropper.height) / 2; } else { cropper = { width: container.height * image.aspectRatio, height: container.height, top: 0 }; cropper.left = (container.width - cropper.width) / 2; } this.$cropper.css({ width: cropper.width, height: cropper.height, left: cropper.left, top: cropper.top }); this.cropper = cropper; }, initImage: function () { var image = this.image, cropper = this.cropper, defaultImage = { _width: cropper.width, _height: cropper.height, width: cropper.width, height: cropper.height, left: 0, top: 0, ratio: cropper.width / image.naturalWidth }; this.defaultImage = $.extend({}, image, defaultImage); if (image._width !== cropper.width || image._height !== cropper.height) { $.extend(image, defaultImage); } else { image = $.extend({}, defaultImage, image); // Reset image ratio if (this.replaced) { image.ratio = defaultImage.ratio; } } this.image = image; this.renderImage(); }, renderImage: function (mode) { var image = this.image; if (mode === "zoom") { image.left -= (image.width - image.oldWidth) / 2; image.top -= (image.height - image.oldHeight) / 2; } image.left = min(max(image.left, image._width - image.width), 0); image.top = min(max(image.top, image._height - image.height), 0); this.$clone.css({ width: image.width, height: image.height, marginLeft: image.left, marginTop: image.top }); if (mode) { this.defaults.done(this.getData()); this.preview(); } }, initDragger: function () { var defaults = this.defaults, cropper = this.cropper, // If not set, use the original aspect ratio of the image. aspectRatio = defaults.aspectRatio || this.image.aspectRatio, ratio = this.image.ratio, autoCropDragger, dragger; if (((cropper.height * aspectRatio) - cropper.width) >= 0) { dragger = { height: cropper.width / aspectRatio, width: cropper.width, left: 0, top: (cropper.height - (cropper.width / aspectRatio)) / 2, maxWidth: cropper.width, maxHeight: cropper.width / aspectRatio }; } else { dragger = { height: cropper.height, width: cropper.height * aspectRatio, left: (cropper.width - (cropper.height * aspectRatio)) / 2, top: 0, maxWidth: cropper.height * aspectRatio, maxHeight: cropper.height }; } dragger.minWidth = 0; dragger.minHeight = 0; if (defaults.aspectRatio) { if (isFinite(defaults.maxWidth)) { dragger.maxWidth = min(dragger.maxWidth, defaults.maxWidth * ratio); dragger.maxHeight = dragger.maxWidth / aspectRatio; } else if (isFinite(defaults.maxHeight)) { dragger.maxHeight = min(dragger.maxHeight, defaults.maxHeight * ratio); dragger.maxWidth = dragger.maxHeight * aspectRatio; } if (defaults.minWidth > 0) { dragger.minWidth = max(0, defaults.minWidth * ratio); dragger.minHeight = dragger.minWidth / aspectRatio; } else if (defaults.minHeight > 0) { dragger.minHeight = max(0, defaults.minHeight * ratio); dragger.minWidth = dragger.minHeight * aspectRatio; } } else { dragger.maxWidth = min(dragger.maxWidth, defaults.maxWidth * ratio); dragger.maxHeight = min(dragger.maxHeight, defaults.maxHeight * ratio); dragger.minWidth = max(0, defaults.minWidth * ratio); dragger.minHeight = max(0, defaults.minHeight * ratio); } // minWidth can't be greater than maxWidth, and minHeight too. dragger.minWidth = min(dragger.maxWidth, dragger.minWidth); dragger.minHeight = min(dragger.maxHeight, dragger.minHeight); // Center the dragger by default autoCropDragger = $.extend({}, dragger); // The width of auto crop area must large than minWidth, and the height too. (#164) autoCropDragger.width = max(dragger.minWidth, dragger.width * defaults.autoCropArea); autoCropDragger.height = max(dragger.minHeight, dragger.height * defaults.autoCropArea); autoCropDragger.left = (cropper.width - autoCropDragger.width) / 2; autoCropDragger.top = (cropper.height - autoCropDragger.height) / 2; autoCropDragger.oldLeft = dragger.oldLeft = dragger.left; autoCropDragger.oldTop = dragger.oldTop = dragger.top; this.autoCropDragger = autoCropDragger; this.defaultDragger = $.extend({}, dragger); this.dragger = dragger; }, renderDragger: function () { var dragger = this.dragger, cropper = this.cropper; if (dragger.width > dragger.maxWidth) { dragger.width = dragger.maxWidth; dragger.left = dragger.oldLeft; } else if (dragger.width < dragger.minWidth) { dragger.width = dragger.minWidth; dragger.left = dragger.oldLeft; } if (dragger.height > dragger.maxHeight) { dragger.height = dragger.maxHeight; dragger.top = dragger.oldTop; } else if (dragger.height < dragger.minHeight) { dragger.height = dragger.minHeight; dragger.top = dragger.oldTop; } dragger.left = min(max(dragger.left, 0), cropper.width - dragger.width); dragger.top = min(max(dragger.top, 0), cropper.height - dragger.height); dragger.oldLeft = dragger.left; dragger.oldTop = dragger.top; // Re-render the dragger this.dragger = dragger; if (!this.disabled) { this.defaults.done(this.getData()); } this.$dragger.css({ width: dragger.width, height: dragger.height, left: dragger.left, top: dragger.top }); this.preview(); }, reset: function (deep) { if (!this.cropped || this.disabled) { return; } if (deep) { this.defaults.data = {}; } this.image = $.extend({}, this.defaultImage); this.renderImage(); this.dragger = $.extend({}, this.defaultDragger); this.setData(this.defaults.data); }, clear: function () { if (!this.cropped || this.disabled) { return; } this.cropped = FALSE; this.setData({ x: 0, y: 0, width: 0, height: 0 }); this.$canvas.removeClass(CLASS_MODAL); this.$dragger.addClass(CLASS_HIDDEN); }, destroy: function () { var $this = this.$element; if (!this.ready) { this.$clone.off("load").remove(); } this.unbuild(); $this.removeClass(CLASS_HIDDEN).removeData("cropper"); if (this.rotated) { $this.attr("src", this.$original.attr("src")); } }, replace: function (url, /*INTERNAL*/ rotated) { var _this = this, $this = this.$element, element = this.element, context; if (!this.disabled && url && url !== this.url && url !== $this.attr("src")) { if (!rotated) { this.rotated = FALSE; this.replaced = TRUE; } if ($this.is("img")) { $this.attr("src", url); this.load(); } else if ($this.is("canvas") && this.support.canvas) { context = element.getContext("2d"); $('').one("load", function () { element.width = this.width; element.height = this.height; context.clearRect(0, 0, element.width, element.height); context.drawImage(this, 0, 0); _this.load(); }); } } }, setData: function (data, /*INTERNAL*/ once) { var cropper = this.cropper, dragger = this.dragger, image = this.image, aspectRatio = this.defaults.aspectRatio; if (!this.built || this.disabled || typeof data === STRING_UNDEFINED) { return; } if (data === NULL || $.isEmptyObject(data)) { dragger = $.extend({}, this.autoCropDragger); } if ($.isPlainObject(data) && !$.isEmptyObject(data)) { if (!once) { this.defaults.data = data; } data = this.transformData(data); if (isNumber(data.x) && data.x <= cropper.width - image.left) { dragger.left = data.x + image.left; } if (isNumber(data.y) && data.y <= cropper.height - image.top) { dragger.top = data.y + image.top; } if (aspectRatio) { if (isNumber(data.width) && data.width <= dragger.maxWidth && data.width >= dragger.minWidth) { dragger.width = data.width; dragger.height = dragger.width / aspectRatio; } else if (isNumber(data.height) && data.height <= dragger.maxHeight && data.height >= dragger.minHeight) { dragger.height = data.height; dragger.width = dragger.height * aspectRatio; } } else { if (isNumber(data.width) && data.width <= dragger.maxWidth && data.width >= dragger.minWidth) { dragger.width = data.width; } if (isNumber(data.height) && data.height <= dragger.maxHeight && data.height >= dragger.minHeight) { dragger.height = data.height; } } } this.dragger = dragger; this.renderDragger(); }, getData: function (rounded) { var dragger = this.dragger, image = this.image, data = {}; if (this.built) { data = { x: dragger.left - image.left, y: dragger.top - image.top, width: dragger.width, height: dragger.height }; data = this.transformData(data, TRUE, rounded); } return data; }, transformData: function (data, reversed, rounded) { var ratio = this.image.ratio, result = {}; $.each(data, function (i, n) { n = num(n); if (REGEXP_OPTIONS.test(i) && !isNaN(n)) { result[i] = reversed ? (rounded ? Math.round(n / ratio) : n / ratio) : n * ratio; } }); return result; }, setAspectRatio: function (aspectRatio) { var freeRatio = aspectRatio === "auto"; if (this.disabled) { return; } aspectRatio = num(aspectRatio); if (freeRatio || (!isNaN(aspectRatio) && aspectRatio > 0)) { this.defaults.aspectRatio = freeRatio ? NAN : aspectRatio; if (this.built) { this.initDragger(); this.renderDragger(); this.setData(this.defaults.data); // Reset to initial state } } }, getImageData: function () { var data = {}; if (this.ready) { $.each(this.image, function (name, value) { if (REGEXP_PROPERTIES.test(name)) { data[name] = value; } }); } return data; }, getDataURL: function (options, type, quality) { var canvas = $("")[0], data = this.getData(), dataURL = "", context; if (!$.isPlainObject(options)) { quality = type; type = options; options = {}; } options = $.extend({ width: data.width, height: data.height }, options); if (this.cropped && this.support.canvas) { canvas.width = options.width; canvas.height = options.height; context = canvas.getContext("2d"); if (type === "image/jpeg") { context.fillStyle = "#fff"; context.fillRect(0, 0, options.width, options.height); } context.drawImage(this.$clone[0], data.x, data.y, data.width, data.height, 0, 0, options.width, options.height); dataURL = canvas.toDataURL(type, quality); } return dataURL; }, setDragMode: function (mode) { var $canvas = this.$canvas, defaults = this.defaults, cropable = FALSE, movable = FALSE; if (!this.built || this.disabled) { return; } switch (mode) { case "crop": if (defaults.dragCrop) { cropable = TRUE; $canvas.data(STRING_DIRECTIVE, mode); } break; case "move": movable = TRUE; $canvas.data(STRING_DIRECTIVE, mode); break; default: $canvas.removeData(STRING_DIRECTIVE); } $canvas.toggleClass(CLASS_CROP, cropable).toggleClass(CLASS_MOVE, movable); }, enable: function () { if (this.built) { this.disabled = FALSE; this.$cropper.removeClass(CLASS_DISABLED); } }, disable: function () { if (this.built) { this.disabled = TRUE; this.$cropper.addClass(CLASS_DISABLED); } }, rotate: function (degree) { var image = this.image; degree = num(degree) || 0; if (!this.built || degree === 0 || this.disabled || !this.defaults.rotatable || !this.support.canvas) { return; } this.rotated = TRUE; degree = (image.rotate = (image.rotate + degree) % 360); // replace with "true" to prevent to override the original image this.replace(this.getRotatedDataURL(degree), true); }, getRotatedDataURL: function (degree) { var canvas = $("")[0], context = canvas.getContext("2d"), arc = degree * Math.PI / 180, deg = abs(degree) % 180, acuteAngle = deg > 90 ? (180 - deg) : deg, acuteAngleArc = acuteAngle * Math.PI / 180, originalImage = this.originalImage, naturalWidth = originalImage.naturalWidth, naturalHeight = originalImage.naturalHeight, width = abs(naturalWidth * cos(acuteAngleArc) + naturalHeight * sin(acuteAngleArc)), height = abs(naturalWidth * sin(acuteAngleArc) + naturalHeight * cos(acuteAngleArc)); canvas.width = width; canvas.height = height; context.save(); context.translate(width / 2, height / 2); context.rotate(arc); context.drawImage(this.$original[0], -naturalWidth / 2, -naturalHeight / 2, naturalWidth, naturalHeight); context.restore(); return canvas.toDataURL(); }, zoom: function (delta) { var image = this.image, width, height, range; delta = num(delta); if (!this.built || !delta || this.disabled || !this.defaults.zoomable) { return; } width = image.width * (1 + delta); height = image.height * (1 + delta); range = width / image._width; if (range > 10) { return; } if (range < 1) { width = image._width; height = image._height; } if (range <= 1) { this.setDragMode("crop"); } else { this.setDragMode("move"); } image.oldWidth = image.width; image.oldHeight = image.height; image.width = width; image.height = height; image.ratio = image.width / image.naturalWidth; this.renderImage("zoom"); }, dblclick: function () { if (this.disabled) { return; } if (this.$canvas.hasClass(CLASS_CROP)) { this.setDragMode("move"); } else { this.setDragMode("crop"); } }, wheel: function (event) { var e = event.originalEvent, delta = 1; if (this.disabled) { return; } event.preventDefault(); 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 * 0.1); }, dragstart: function (event) { var touches = event.originalEvent.touches, e = event, directive, dragStartEvent, touchesLength; if (this.disabled) { return; } if (touches) { touchesLength = touches.length; if (touchesLength > 1) { if (this.defaults.zoomable && touchesLength === 2) { e = touches[1]; this.startX2 = e.pageX; this.startY2 = e.pageY; directive = "zoom"; } else { return; } } e = touches[0]; } directive = directive || $(e.target).data(STRING_DIRECTIVE); if (REGEXP_DIRECTIVES.test(directive)) { event.preventDefault(); dragStartEvent = $.Event(EVENT_DRAG_START); this.$element.trigger(dragStartEvent); if (dragStartEvent.isDefaultPrevented()) { return; } this.directive = directive; this.cropping = FALSE; this.startX = e.pageX; this.startY = e.pageY; if (directive === "crop") { this.cropping = TRUE; this.$canvas.addClass(CLASS_MODAL); } } }, dragmove: function (event) { var touches = event.originalEvent.touches, e = event, dragMoveEvent, touchesLength; if (this.disabled) { return; } if (touches) { touchesLength = touches.length; if (touchesLength > 1) { if (this.defaults.zoomable && touchesLength === 2) { e = touches[1]; this.endX2 = e.pageX; this.endY2 = e.pageY; } else { return; } } e = touches[0]; } if (this.directive) { event.preventDefault(); dragMoveEvent = $.Event(EVENT_DRAG_MOVE); this.$element.trigger(dragMoveEvent); if (dragMoveEvent.isDefaultPrevented()) { return; } this.endX = e.pageX; this.endY = e.pageY; this.dragging(); } }, dragend: function (event) { var dragEndEvent; if (this.disabled) { return; } if (this.directive) { event.preventDefault(); dragEndEvent = $.Event(EVENT_DRAG_END); this.$element.trigger(dragEndEvent); if (dragEndEvent.isDefaultPrevented()) { return; } if (this.cropping) { this.cropping = FALSE; this.$canvas.toggleClass(CLASS_MODAL, this.cropped && this.defaults.modal); } this.directive = ""; } }, dragging: function () { var directive = this.directive, image = this.image, cropper = this.cropper, maxWidth = cropper.width, maxHeight = cropper.height, dragger = this.dragger, width = dragger.width, height = dragger.height, left = dragger.left, top = dragger.top, right = left + width, bottom = top + height, renderable = TRUE, aspectRatio = this.defaults.aspectRatio, range = { x: this.endX - this.startX, y: this.endY - this.startY }, offset; if (aspectRatio) { range.X = range.y * aspectRatio; range.Y = range.x / aspectRatio; } switch (directive) { // Move dragger case "all": left += range.x; top += range.y; break; // Resize dragger case "e": if (range.x >= 0 && (right >= maxWidth || aspectRatio && (top <= 0 || bottom >= maxHeight))) { renderable = FALSE; break; } width += range.x; if (aspectRatio) { height = width / aspectRatio; top -= range.Y / 2; } if (width < 0) { directive = "w"; width = 0; } break; case "n": if (range.y <= 0 && (top <= 0 || aspectRatio && (left <= 0 || right >= maxWidth))) { renderable = FALSE; break; } height -= range.y; top += range.y; if (aspectRatio) { width = height * aspectRatio; left += range.X / 2; } if (height < 0) { directive = "s"; height = 0; } break; case "w": if (range.x <= 0 && (left <= 0 || aspectRatio && (top <= 0 || bottom >= maxHeight))) { renderable = FALSE; break; } width -= range.x; left += range.x; if (aspectRatio) { height = width / aspectRatio; top += range.Y / 2; } if (width < 0) { directive = "e"; width = 0; } break; case "s": if (range.y >= 0 && (bottom >= maxHeight || aspectRatio && (left <= 0 || right >= maxWidth))) { renderable = FALSE; break; } height += range.y; if (aspectRatio) { width = height * aspectRatio; left -= range.X / 2; } if (height < 0) { directive = "n"; height = 0; } break; case "ne": if (aspectRatio) { if (range.y <= 0 && (top <= 0 || right >= maxWidth)) { renderable = FALSE; break; } height -= range.y; top += range.y; width = height * aspectRatio; } else { if (range.x >= 0) { if (right < maxWidth) { width += range.x; } else if (range.y <= 0 && top <= 0) { renderable = FALSE; } } else { width += range.x; } if (range.y <= 0) { if (top > 0) { height -= range.y; top += range.y; } } else { height -= range.y; top += range.y; } } if (width < 0 && height < 0) { directive = "sw"; height = 0; width = 0; } else if (width < 0) { directive = "nw"; width = 0; } else if (height < 0) { directive = "se"; height = 0; } break; case "nw": if (aspectRatio) { if (range.y <= 0 && (top <= 0 || left <= 0)) { renderable = FALSE; break; } height -= range.y; top += range.y; width = height * aspectRatio; left += range.X; } else { if (range.x <= 0) { if (left > 0) { width -= range.x; left += range.x; } else if (range.y <= 0 && top <= 0) { renderable = FALSE; } } else { width -= range.x; left += range.x; } if (range.y <= 0) { if (top > 0) { height -= range.y; top += range.y; } } else { height -= range.y; top += range.y; } } if (width < 0 && height < 0) { directive = "se"; height = 0; width = 0; } else if (width < 0) { directive = "ne"; width = 0; } else if (height < 0) { directive = "sw"; height = 0; } break; case "sw": if (aspectRatio) { if (range.x <= 0 && (left <= 0 || bottom >= maxHeight)) { renderable = FALSE; break; } width -= range.x; left += range.x; height = width / aspectRatio; } else { if (range.x <= 0) { if (left > 0) { 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) { directive = "ne"; height = 0; width = 0; } else if (width < 0) { directive = "se"; width = 0; } else if (height < 0) { directive = "nw"; height = 0; } break; case "se": if (aspectRatio) { if (range.x >= 0 && (right >= maxWidth || bottom >= maxHeight)) { renderable = FALSE; break; } width += range.x; height = width / aspectRatio; } else { 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) { directive = "nw"; height = 0; width = 0; } else if (width < 0) { directive = "sw"; width = 0; } else if (height < 0) { directive = "ne"; height = 0; } break; // Move image case "move": image.left += range.x; image.top += range.y; this.renderImage("move"); renderable = FALSE; break; // Scale image case "zoom": this.zoom(function (x, y, x1, y1, x2, y2) { return (sqrt(x2 * x2 + y2 * y2) - sqrt(x1 * x1 + y1 * y1)) / sqrt(x * x + y * y); }( image.width, image.height, abs(this.startX - this.startX2), abs(this.startY - this.startY2), abs(this.endX - this.endX2), abs(this.endY - this.endY2) )); this.endX2 = this.startX2; this.endY2 = this.startY2; renderable = FALSE; break; // Crop image case "crop": if (range.x && range.y) { offset = this.$cropper.offset(); left = this.startX - offset.left; top = this.startY - offset.top; width = dragger.minWidth; height = dragger.minHeight; if (range.x > 0) { if (range.y > 0) { directive = "se"; } else { directive = "ne"; top -= height; } } else { if (range.y > 0) { directive = "sw"; left -= width; } else { directive = "nw"; left -= width; top -= height; } } // Show the dragger if is hidden if (!this.cropped) { this.cropped = TRUE; this.$dragger.removeClass(CLASS_HIDDEN); } } break; // No default } if (renderable) { dragger.width = width; dragger.height = height; dragger.left = left; dragger.top = top; this.directive = directive; this.renderDragger(); } // Override this.startX = this.endX; this.startY = this.endY; } }; // Use the string compressor: Strmin (https://github.com/fengyuanchen/strmin) Cropper.TEMPLATE = (function (source, words) { words = words.split(","); return source.replace(/\d+/g, function (i) { return words[i]; }); })('<0 6="5-container"><0 6="5-canvas"><0 6="5-dragger"><1 6="5-viewer"><1 6="5-8 8-h"><1 6="5-8 8-v"><1 6="5-face" 3-2="all"><1 6="5-7 7-e" 3-2="e"><1 6="5-7 7-n" 3-2="n"><1 6="5-7 7-w" 3-2="w"><1 6="5-7 7-s" 3-2="s"><1 6="5-4 4-e" 3-2="e"><1 6="5-4 4-n" 3-2="n"><1 6="5-4 4-w" 3-2="w"><1 6="5-4 4-s" 3-2="s"><1 6="5-4 4-ne" 3-2="ne"><1 6="5-4 4-nw" 3-2="nw"><1 6="5-4 4-sw" 3-2="sw"><1 6="5-4 4-se" 3-2="se">', "div,span,directive,data,point,cropper,class,line,dashed"); /* Template source:
*/ Cropper.DEFAULTS = { // Basic aspectRatio: "auto", autoCropArea: 0.8, // 80% data: { // x: 0, // y: 0, // width: 300, // height: 150 }, done: $.noop, preview: "", // Toggles multiple: FALSE, autoCrop: TRUE, dragCrop: TRUE, dashed: TRUE, modal: TRUE, movable: TRUE, resizable: TRUE, zoomable: TRUE, rotatable: TRUE, checkImageOrigin: TRUE, // Dimensions minWidth: 0, minHeight: 0, maxWidth: INFINITY, maxHeight: INFINITY, minContainerWidth: 300, minContainerHeight: 150, // Events build: NULL, built: NULL, dragstart: NULL, dragmove: NULL, dragend: NULL }; Cropper.setDefaults = function (options) { $.extend(Cropper.DEFAULTS, options); }; // Save the other cropper Cropper.other = $.fn.cropper; // Register as jQuery plugin $.fn.cropper = function (options) { var args = toArray(arguments, 1), result; this.each(function () { var $this = $(this), data = $this.data("cropper"), fn; if (!data) { $this.data("cropper", (data = new Cropper(this, options))); } if (typeof options === "string" && $.isFunction((fn = data[options]))) { result = fn.apply(data, args); } }); return (typeof result !== STRING_UNDEFINED ? result : this); }; $.fn.cropper.Constructor = Cropper; $.fn.cropper.setDefaults = Cropper.setDefaults; // No conflict $.fn.cropper.noConflict = function () { $.fn.cropper = Cropper.other; return this; }; });