diff --git a/web_widget_digitized_signature/__openerp__.py b/web_widget_digitized_signature/__openerp__.py index b8fb9770..e2e45e38 100644 --- a/web_widget_digitized_signature/__openerp__.py +++ b/web_widget_digitized_signature/__openerp__.py @@ -13,7 +13,7 @@ { "name": "Web Widget Digitized Signature", - "version": "8.0.1.0.0", + "version": "8.0.2.0.0", "author": "Serpent Consulting Services Pvt. Ltd., " "Odoo Community Association (OCA)", "category": 'web', diff --git a/web_widget_digitized_signature/static/lib/excanvas.js b/web_widget_digitized_signature/static/lib/excanvas.js deleted file mode 100644 index 367764b4..00000000 --- a/web_widget_digitized_signature/static/lib/excanvas.js +++ /dev/null @@ -1,924 +0,0 @@ -// Copyright 2006 Google Inc. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - - -// Known Issues: -// -// * Patterns are not implemented. -// * Radial gradient are not implemented. The VML version of these look very -// different from the canvas one. -// * Clipping paths are not implemented. -// * Coordsize. The width and height attribute have higher priority than the -// width and height style values which isn't correct. -// * Painting mode isn't implemented. -// * Canvas width/height should is using content-box by default. IE in -// Quirks mode will draw the canvas using border-box. Either change your -// doctype to HTML5 -// (http://www.whatwg.org/specs/web-apps/current-work/#the-doctype) -// or use Box Sizing Behavior from WebFX -// (http://webfx.eae.net/dhtml/boxsizing/boxsizing.html) -// * Non uniform scaling does not correctly scale strokes. -// * Optimize. There is always room for speed improvements. - -// Only add this code if we do not already have a canvas implementation -if (!document.createElement('canvas').getContext) { - -(function() { - - // alias some functions to make (compiled) code shorter - var m = Math; - var mr = m.round; - var ms = m.sin; - var mc = m.cos; - var abs = m.abs; - var sqrt = m.sqrt; - - // this is used for sub pixel precision - var Z = 10; - var Z2 = Z / 2; - - /** - * This funtion is assigned to the elements as element.getContext(). - * @this {HTMLElement} - * @return {CanvasRenderingContext2D_} - */ - function getContext() { - return this.context_ || - (this.context_ = new CanvasRenderingContext2D_(this)); - } - - var slice = Array.prototype.slice; - - /** - * Binds a function to an object. The returned function will always use the - * passed in {@code obj} as {@code this}. - * - * Example: - * - * g = bind(f, obj, a, b) - * g(c, d) // will do f.call(obj, a, b, c, d) - * - * @param {Function} f The function to bind the object to - * @param {Object} obj The object that should act as this when the function - * is called - * @param {*} var_args Rest arguments that will be used as the initial - * arguments when the function is called - * @return {Function} A new function that has bound this - */ - function bind(f, obj, var_args) { - var a = slice.call(arguments, 2); - return function() { - return f.apply(obj, a.concat(slice.call(arguments))); - }; - } - - var G_vmlCanvasManager_ = { - init: function(opt_doc) { - if (/MSIE/.test(navigator.userAgent) && !window.opera) { - var doc = opt_doc || document; - // Create a dummy element so that IE will allow canvas elements to be - // recognized. - doc.createElement('canvas'); - doc.attachEvent('onreadystatechange', bind(this.init_, this, doc)); - } - }, - - init_: function(doc) { - // create xmlns - if (!doc.namespaces['g_vml_']) { - doc.namespaces.add('g_vml_', 'urn:schemas-microsoft-com:vml', - '#default#VML'); - - } - if (!doc.namespaces['g_o_']) { - doc.namespaces.add('g_o_', 'urn:schemas-microsoft-com:office:office', - '#default#VML'); - } - - // Setup default CSS. Only add one style sheet per document - if (!doc.styleSheets['ex_canvas_']) { - var ss = doc.createStyleSheet(); - ss.owningElement.id = 'ex_canvas_'; - ss.cssText = 'canvas{display:inline-block;overflow:hidden;' + - // default size is 300x150 in Gecko and Opera - 'text-align:left;width:300px;height:150px}' + - 'g_vml_\\:*{behavior:url(#default#VML)}' + - 'g_o_\\:*{behavior:url(#default#VML)}'; - - } - - // find all canvas elements - var els = doc.getElementsByTagName('canvas'); - for (var i = 0; i < els.length; i++) { - this.initElement(els[i]); - } - }, - - /** - * Public initializes a canvas element so that it can be used as canvas - * element from now on. This is called automatically before the page is - * loaded but if you are creating elements using createElement you need to - * make sure this is called on the element. - * @param {HTMLElement} el The canvas element to initialize. - * @return {HTMLElement} the element that was created. - */ - initElement: function(el) { - if (!el.getContext) { - - el.getContext = getContext; - - // Remove fallback content. There is no way to hide text nodes so we - // just remove all childNodes. We could hide all elements and remove - // text nodes but who really cares about the fallback content. - el.innerHTML = ''; - - // do not use inline function because that will leak memory - el.attachEvent('onpropertychange', onPropertyChange); - el.attachEvent('onresize', onResize); - - var attrs = el.attributes; - if (attrs.width && attrs.width.specified) { - // TODO: use runtimeStyle and coordsize - // el.getContext().setWidth_(attrs.width.nodeValue); - el.style.width = attrs.width.nodeValue + 'px'; - } else { - el.width = el.clientWidth; - } - if (attrs.height && attrs.height.specified) { - // TODO: use runtimeStyle and coordsize - // el.getContext().setHeight_(attrs.height.nodeValue); - el.style.height = attrs.height.nodeValue + 'px'; - } else { - el.height = el.clientHeight; - } - //el.getContext().setCoordsize_() - } - return el; - } - }; - - function onPropertyChange(e) { - var el = e.srcElement; - - switch (e.propertyName) { - case 'width': - el.style.width = el.attributes.width.nodeValue + 'px'; - el.getContext().clearRect(); - break; - case 'height': - el.style.height = el.attributes.height.nodeValue + 'px'; - el.getContext().clearRect(); - break; - } - } - - function onResize(e) { - var el = e.srcElement; - if (el.firstChild) { - el.firstChild.style.width = el.clientWidth + 'px'; - el.firstChild.style.height = el.clientHeight + 'px'; - } - } - - G_vmlCanvasManager_.init(); - - // precompute "00" to "FF" - var dec2hex = []; - for (var i = 0; i < 16; i++) { - for (var j = 0; j < 16; j++) { - dec2hex[i * 16 + j] = i.toString(16) + j.toString(16); - } - } - - function createMatrixIdentity() { - return [ - [1, 0, 0], - [0, 1, 0], - [0, 0, 1] - ]; - } - - function matrixMultiply(m1, m2) { - var result = createMatrixIdentity(); - - for (var x = 0; x < 3; x++) { - for (var y = 0; y < 3; y++) { - var sum = 0; - - for (var z = 0; z < 3; z++) { - sum += m1[x][z] * m2[z][y]; - } - - result[x][y] = sum; - } - } - return result; - } - - function copyState(o1, o2) { - o2.fillStyle = o1.fillStyle; - o2.lineCap = o1.lineCap; - o2.lineJoin = o1.lineJoin; - o2.lineWidth = o1.lineWidth; - o2.miterLimit = o1.miterLimit; - o2.shadowBlur = o1.shadowBlur; - o2.shadowColor = o1.shadowColor; - o2.shadowOffsetX = o1.shadowOffsetX; - o2.shadowOffsetY = o1.shadowOffsetY; - o2.strokeStyle = o1.strokeStyle; - o2.globalAlpha = o1.globalAlpha; - o2.arcScaleX_ = o1.arcScaleX_; - o2.arcScaleY_ = o1.arcScaleY_; - o2.lineScale_ = o1.lineScale_; - } - - function processStyle(styleString) { - var str, alpha = 1; - - styleString = String(styleString); - if (styleString.substring(0, 3) == 'rgb') { - var start = styleString.indexOf('(', 3); - var end = styleString.indexOf(')', start + 1); - var guts = styleString.substring(start + 1, end).split(','); - - str = '#'; - for (var i = 0; i < 3; i++) { - str += dec2hex[Number(guts[i])]; - } - - if (guts.length == 4 && styleString.substr(3, 1) == 'a') { - alpha = guts[3]; - } - } else { - str = styleString; - } - - return {color: str, alpha: alpha}; - } - - function processLineCap(lineCap) { - switch (lineCap) { - case 'butt': - return 'flat'; - case 'round': - return 'round'; - case 'square': - default: - return 'square'; - } - } - - /** - * This class implements CanvasRenderingContext2D interface as described by - * the WHATWG. - * @param {HTMLElement} surfaceElement The element that the 2D context should - * be associated with - */ - function CanvasRenderingContext2D_(surfaceElement) { - this.m_ = createMatrixIdentity(); - - this.mStack_ = []; - this.aStack_ = []; - this.currentPath_ = []; - - // Canvas context properties - this.strokeStyle = '#000'; - this.fillStyle = '#000'; - - this.lineWidth = 1; - this.lineJoin = 'miter'; - this.lineCap = 'butt'; - this.miterLimit = Z * 1; - this.globalAlpha = 1; - this.canvas = surfaceElement; - - var el = surfaceElement.ownerDocument.createElement('div'); - el.style.width = surfaceElement.clientWidth + 'px'; - el.style.height = surfaceElement.clientHeight + 'px'; - el.style.overflow = 'hidden'; - el.style.position = 'absolute'; - surfaceElement.appendChild(el); - - this.element_ = el; - this.arcScaleX_ = 1; - this.arcScaleY_ = 1; - this.lineScale_ = 1; - } - - var contextPrototype = CanvasRenderingContext2D_.prototype; - contextPrototype.clearRect = function() { - this.element_.innerHTML = ''; - }; - - contextPrototype.beginPath = function() { - // TODO: Branch current matrix so that save/restore has no effect - // as per safari docs. - this.currentPath_ = []; - }; - - contextPrototype.moveTo = function(aX, aY) { - var p = this.getCoords_(aX, aY); - this.currentPath_.push({type: 'moveTo', x: p.x, y: p.y}); - this.currentX_ = p.x; - this.currentY_ = p.y; - }; - - contextPrototype.lineTo = function(aX, aY) { - var p = this.getCoords_(aX, aY); - this.currentPath_.push({type: 'lineTo', x: p.x, y: p.y}); - - this.currentX_ = p.x; - this.currentY_ = p.y; - }; - - contextPrototype.bezierCurveTo = function(aCP1x, aCP1y, - aCP2x, aCP2y, - aX, aY) { - var p = this.getCoords_(aX, aY); - var cp1 = this.getCoords_(aCP1x, aCP1y); - var cp2 = this.getCoords_(aCP2x, aCP2y); - bezierCurveTo(this, cp1, cp2, p); - }; - - // Helper function that takes the already fixed cordinates. - function bezierCurveTo(self, cp1, cp2, p) { - self.currentPath_.push({ - type: 'bezierCurveTo', - cp1x: cp1.x, - cp1y: cp1.y, - cp2x: cp2.x, - cp2y: cp2.y, - x: p.x, - y: p.y - }); - self.currentX_ = p.x; - self.currentY_ = p.y; - } - - contextPrototype.quadraticCurveTo = function(aCPx, aCPy, aX, aY) { - // the following is lifted almost directly from - // http://developer.mozilla.org/en/docs/Canvas_tutorial:Drawing_shapes - - var cp = this.getCoords_(aCPx, aCPy); - var p = this.getCoords_(aX, aY); - - var cp1 = { - x: this.currentX_ + 2.0 / 3.0 * (cp.x - this.currentX_), - y: this.currentY_ + 2.0 / 3.0 * (cp.y - this.currentY_) - }; - var cp2 = { - x: cp1.x + (p.x - this.currentX_) / 3.0, - y: cp1.y + (p.y - this.currentY_) / 3.0 - }; - - bezierCurveTo(this, cp1, cp2, p); - }; - - contextPrototype.arc = function(aX, aY, aRadius, - aStartAngle, aEndAngle, aClockwise) { - aRadius *= Z; - var arcType = aClockwise ? 'at' : 'wa'; - - var xStart = aX + mc(aStartAngle) * aRadius - Z2; - var yStart = aY + ms(aStartAngle) * aRadius - Z2; - - var xEnd = aX + mc(aEndAngle) * aRadius - Z2; - var yEnd = aY + ms(aEndAngle) * aRadius - Z2; - - // IE won't render arches drawn counter clockwise if xStart == xEnd. - if (xStart == xEnd && !aClockwise) { - xStart += 0.125; // Offset xStart by 1/80 of a pixel. Use something - // that can be represented in binary - } - - var p = this.getCoords_(aX, aY); - var pStart = this.getCoords_(xStart, yStart); - var pEnd = this.getCoords_(xEnd, yEnd); - - this.currentPath_.push({type: arcType, - x: p.x, - y: p.y, - radius: aRadius, - xStart: pStart.x, - yStart: pStart.y, - xEnd: pEnd.x, - yEnd: pEnd.y}); - - }; - - contextPrototype.rect = function(aX, aY, aWidth, aHeight) { - this.moveTo(aX, aY); - this.lineTo(aX + aWidth, aY); - this.lineTo(aX + aWidth, aY + aHeight); - this.lineTo(aX, aY + aHeight); - this.closePath(); - }; - - contextPrototype.strokeRect = function(aX, aY, aWidth, aHeight) { - var oldPath = this.currentPath_; - this.beginPath(); - - this.moveTo(aX, aY); - this.lineTo(aX + aWidth, aY); - this.lineTo(aX + aWidth, aY + aHeight); - this.lineTo(aX, aY + aHeight); - this.closePath(); - this.stroke(); - - this.currentPath_ = oldPath; - }; - - contextPrototype.fillRect = function(aX, aY, aWidth, aHeight) { - var oldPath = this.currentPath_; - this.beginPath(); - - this.moveTo(aX, aY); - this.lineTo(aX + aWidth, aY); - this.lineTo(aX + aWidth, aY + aHeight); - this.lineTo(aX, aY + aHeight); - this.closePath(); - this.fill(); - - this.currentPath_ = oldPath; - }; - - contextPrototype.createLinearGradient = function(aX0, aY0, aX1, aY1) { - var gradient = new CanvasGradient_('gradient'); - gradient.x0_ = aX0; - gradient.y0_ = aY0; - gradient.x1_ = aX1; - gradient.y1_ = aY1; - return gradient; - }; - - contextPrototype.createRadialGradient = function(aX0, aY0, aR0, - aX1, aY1, aR1) { - var gradient = new CanvasGradient_('gradientradial'); - gradient.x0_ = aX0; - gradient.y0_ = aY0; - gradient.r0_ = aR0; - gradient.x1_ = aX1; - gradient.y1_ = aY1; - gradient.r1_ = aR1; - return gradient; - }; - - contextPrototype.drawImage = function(image, var_args) { - var dx, dy, dw, dh, sx, sy, sw, sh; - - // to find the original width we overide the width and height - var oldRuntimeWidth = image.runtimeStyle.width; - var oldRuntimeHeight = image.runtimeStyle.height; - image.runtimeStyle.width = 'auto'; - image.runtimeStyle.height = 'auto'; - - // get the original size - var w = image.width; - var h = image.height; - - // and remove overides - image.runtimeStyle.width = oldRuntimeWidth; - image.runtimeStyle.height = oldRuntimeHeight; - - if (arguments.length == 3) { - dx = arguments[1]; - dy = arguments[2]; - sx = sy = 0; - sw = dw = w; - sh = dh = h; - } else if (arguments.length == 5) { - dx = arguments[1]; - dy = arguments[2]; - dw = arguments[3]; - dh = arguments[4]; - sx = sy = 0; - sw = w; - sh = h; - } else if (arguments.length == 9) { - sx = arguments[1]; - sy = arguments[2]; - sw = arguments[3]; - sh = arguments[4]; - dx = arguments[5]; - dy = arguments[6]; - dw = arguments[7]; - dh = arguments[8]; - } else { - throw Error('Invalid number of arguments'); - } - - var d = this.getCoords_(dx, dy); - - var w2 = sw / 2; - var h2 = sh / 2; - - var vmlStr = []; - - var W = 10; - var H = 10; - - // For some reason that I've now forgotten, using divs didn't work - vmlStr.push(' ' , - '', - ''); - - this.element_.insertAdjacentHTML('BeforeEnd', - vmlStr.join('')); - }; - - contextPrototype.stroke = function(aFill) { - var lineStr = []; - var lineOpen = false; - var a = processStyle(aFill ? this.fillStyle : this.strokeStyle); - var color = a.color; - var opacity = a.alpha * this.globalAlpha; - - var W = 10; - var H = 10; - - lineStr.push(''); - - if (!aFill) { - var lineWidth = this.lineScale_ * this.lineWidth; - - // VML cannot correctly render a line if the width is less than 1px. - // In that case, we dilute the color to make the line look thinner. - if (lineWidth < 1) { - opacity *= lineWidth; - } - - lineStr.push( - '' - ); - } else if (typeof this.fillStyle == 'object') { - var fillStyle = this.fillStyle; - var angle = 0; - var focus = {x: 0, y: 0}; - - // additional offset - var shift = 0; - // scale factor for offset - var expansion = 1; - - if (fillStyle.type_ == 'gradient') { - var x0 = fillStyle.x0_ / this.arcScaleX_; - var y0 = fillStyle.y0_ / this.arcScaleY_; - var x1 = fillStyle.x1_ / this.arcScaleX_; - var y1 = fillStyle.y1_ / this.arcScaleY_; - var p0 = this.getCoords_(x0, y0); - var p1 = this.getCoords_(x1, y1); - var dx = p1.x - p0.x; - var dy = p1.y - p0.y; - angle = Math.atan2(dx, dy) * 180 / Math.PI; - - // The angle should be a non-negative number. - if (angle < 0) { - angle += 360; - } - - // Very small angles produce an unexpected result because they are - // converted to a scientific notation string. - if (angle < 1e-6) { - angle = 0; - } - } else { - var p0 = this.getCoords_(fillStyle.x0_, fillStyle.y0_); - var width = max.x - min.x; - var height = max.y - min.y; - focus = { - x: (p0.x - min.x) / width, - y: (p0.y - min.y) / height - }; - - width /= this.arcScaleX_ * Z; - height /= this.arcScaleY_ * Z; - var dimension = m.max(width, height); - shift = 2 * fillStyle.r0_ / dimension; - expansion = 2 * fillStyle.r1_ / dimension - shift; - } - - // We need to sort the color stops in ascending order by offset, - // otherwise IE won't interpret it correctly. - var stops = fillStyle.colors_; - stops.sort(function(cs1, cs2) { - return cs1.offset - cs2.offset; - }); - - var length = stops.length; - var color1 = stops[0].color; - var color2 = stops[length - 1].color; - var opacity1 = stops[0].alpha * this.globalAlpha; - var opacity2 = stops[length - 1].alpha * this.globalAlpha; - - var colors = []; - for (var i = 0; i < length; i++) { - var stop = stops[i]; - colors.push(stop.offset * expansion + shift + ' ' + stop.color); - } - - // When colors attribute is used, the meanings of opacity and o:opacity2 - // are reversed. - lineStr.push(''); - } else { - lineStr.push(''); - } - - lineStr.push(''); - - this.element_.insertAdjacentHTML('beforeEnd', lineStr.join('')); - }; - - contextPrototype.fill = function() { - this.stroke(true); - } - - contextPrototype.closePath = function() { - this.currentPath_.push({type: 'close'}); - }; - - /** - * @private - */ - contextPrototype.getCoords_ = function(aX, aY) { - var m = this.m_; - return { - x: Z * (aX * m[0][0] + aY * m[1][0] + m[2][0]) - Z2, - y: Z * (aX * m[0][1] + aY * m[1][1] + m[2][1]) - Z2 - } - }; - - contextPrototype.save = function() { - var o = {}; - copyState(this, o); - this.aStack_.push(o); - this.mStack_.push(this.m_); - this.m_ = matrixMultiply(createMatrixIdentity(), this.m_); - }; - - contextPrototype.restore = function() { - copyState(this.aStack_.pop(), this); - this.m_ = this.mStack_.pop(); - }; - - function matrixIsFinite(m) { - for (var j = 0; j < 3; j++) { - for (var k = 0; k < 2; k++) { - if (!isFinite(m[j][k]) || isNaN(m[j][k])) { - return false; - } - } - } - return true; - } - - function setM(ctx, m, updateLineScale) { - if (!matrixIsFinite(m)) { - return; - } - ctx.m_ = m; - - if (updateLineScale) { - // Get the line scale. - // Determinant of this.m_ means how much the area is enlarged by the - // transformation. So its square root can be used as a scale factor - // for width. - var det = m[0][0] * m[1][1] - m[0][1] * m[1][0]; - ctx.lineScale_ = sqrt(abs(det)); - } - } - - contextPrototype.translate = function(aX, aY) { - var m1 = [ - [1, 0, 0], - [0, 1, 0], - [aX, aY, 1] - ]; - - setM(this, matrixMultiply(m1, this.m_), false); - }; - - contextPrototype.rotate = function(aRot) { - var c = mc(aRot); - var s = ms(aRot); - - var m1 = [ - [c, s, 0], - [-s, c, 0], - [0, 0, 1] - ]; - - setM(this, matrixMultiply(m1, this.m_), false); - }; - - contextPrototype.scale = function(aX, aY) { - this.arcScaleX_ *= aX; - this.arcScaleY_ *= aY; - var m1 = [ - [aX, 0, 0], - [0, aY, 0], - [0, 0, 1] - ]; - - setM(this, matrixMultiply(m1, this.m_), true); - }; - - contextPrototype.transform = function(m11, m12, m21, m22, dx, dy) { - var m1 = [ - [m11, m12, 0], - [m21, m22, 0], - [dx, dy, 1] - ]; - - setM(this, matrixMultiply(m1, this.m_), true); - }; - - contextPrototype.setTransform = function(m11, m12, m21, m22, dx, dy) { - var m = [ - [m11, m12, 0], - [m21, m22, 0], - [dx, dy, 1] - ]; - - setM(this, m, true); - }; - - /******** STUBS ********/ - contextPrototype.clip = function() { - // TODO: Implement - }; - - contextPrototype.arcTo = function() { - // TODO: Implement - }; - - contextPrototype.createPattern = function() { - return new CanvasPattern_; - }; - - // Gradient / Pattern Stubs - function CanvasGradient_(aType) { - this.type_ = aType; - this.x0_ = 0; - this.y0_ = 0; - this.r0_ = 0; - this.x1_ = 0; - this.y1_ = 0; - this.r1_ = 0; - this.colors_ = []; - } - - CanvasGradient_.prototype.addColorStop = function(aOffset, aColor) { - aColor = processStyle(aColor); - this.colors_.push({offset: aOffset, - color: aColor.color, - alpha: aColor.alpha}); - }; - - function CanvasPattern_() {} - - // set up externs - G_vmlCanvasManager = G_vmlCanvasManager_; - CanvasRenderingContext2D = CanvasRenderingContext2D_; - CanvasGradient = CanvasGradient_; - CanvasPattern = CanvasPattern_; - -})(); - -} // if diff --git a/web_widget_digitized_signature/static/lib/jSignature/jSignatureCustom.js b/web_widget_digitized_signature/static/lib/jSignature/jSignatureCustom.js new file mode 100644 index 00000000..ae51103d --- /dev/null +++ b/web_widget_digitized_signature/static/lib/jSignature/jSignatureCustom.js @@ -0,0 +1,1457 @@ +/** @preserve +jSignature v2 "${buildDate}" "${commitID}" +Copyright (c) 2012 Willow Systems Corp http://willow-systems.com +Copyright (c) 2010 Brinley Ang http://www.unbolt.net +MIT License + +*/ +;(function() { + +var apinamespace = 'jSignature' + +/** +Allows one to delay certain eventual action by setting up a timer for it and allowing one to delay it +by "kick"ing it. Sorta like "kick the can down the road" + +@public +@class +@param +@returns {Type} +*/ +var KickTimerClass = function(time, callback) { + var timer; + this.kick = function() { + clearTimeout(timer); + timer = setTimeout( + callback + , time + ); + } + this.clear = function() { + clearTimeout(timer); + } + return this; +} + +var PubSubClass = function(context){ + 'use strict' + /* @preserve + ----------------------------------------------------------------------------------------------- + JavaScript PubSub library + 2012 (c) Willow Systems Corp (www.willow-systems.com) + based on Peter Higgins (dante@dojotoolkit.org) + Loosely based on Dojo publish/subscribe API, limited in scope. Rewritten blindly. + Original is (c) Dojo Foundation 2004-2010. Released under either AFL or new BSD, see: + http://dojofoundation.org/license for more information. + ----------------------------------------------------------------------------------------------- + */ + this.topics = {}; + // here we choose what will be "this" for the called events. + // if context is defined, it's context. Else, 'this' is this instance of PubSub + this.context = context ? context : this; + /** + * Allows caller to emit an event and pass arguments to event listeners. + * @public + * @function + * @param topic {String} Name of the channel on which to voice this event + * @param **arguments Any number of arguments you want to pass to the listeners of this event. + */ + this.publish = function(topic, arg1, arg2, etc) { + 'use strict' + if (this.topics[topic]) { + var currentTopic = this.topics[topic] + , args = Array.prototype.slice.call(arguments, 1) + , toremove = [] + , torun = [] + , fn + , i, l + , pair; + + for (i = 0, l = currentTopic.length; i < l; i++) { + pair = currentTopic[i]; // this is a [function, once_flag] array + fn = pair[0]; + if (pair[1] /* 'run once' flag set */){ + pair[0] = function(){}; + toremove.push(i); + } + /* don't call the callback right now, it might decide to add or + * remove subscribers which will wreak havoc on our index-based + * iteration */ + torun.push(fn); + } + for (i = 0, l = toremove.length; i < l; i++) { + currentTopic.splice(toremove[i], 1); + } + for (i = 0, l = torun.length; i < l; i++) { + torun[i].apply(this.context, args); + } + } + } + /** + * Allows listener code to subscribe to channel and be called when data is available + * @public + * @function + * @param topic {String} Name of the channel on which to voice this event + * @param callback {Function} Executable (function pointer) that will be ran when event is voiced on this channel. + * @param once {Boolean} (optional. False by default) Flag indicating if the function is to be triggered only once. + * @returns {Object} A token object that cen be used for unsubscribing. + */ + this.subscribe = function(topic, callback, once) { + 'use strict' + if (!this.topics[topic]) { + this.topics[topic] = [[callback, once]]; + } else { + this.topics[topic].push([callback,once]); + } + return { + "topic": topic, + "callback": callback + }; + }; + /** + * Allows listener code to unsubscribe from a channel + * @public + * @function + * @param token {Object} A token object that was returned by `subscribe` method + */ + this.unsubscribe = function(token) { + if (this.topics[token.topic]) { + var currentTopic = this.topics[token.topic]; + + for (var i = 0, l = currentTopic.length; i < l; i++) { + if (currentTopic[i] && currentTopic[i][0] === token.callback) { + currentTopic.splice(i, 1); + } + } + } + } +} + +/// Returns front, back and "decor" colors derived from element (as jQuery obj) +function getColors($e){ + var tmp + , undef + , frontcolor = $e.css('color') + , backcolor + , e = $e[0]; + + var toOfDOM = false; + while(e && !backcolor && !toOfDOM){ + try{ + tmp = $(e).css('background-color'); + } catch (ex) { + tmp = 'transparent'; + } + if (tmp !== 'transparent' && tmp !== 'rgba(0, 0, 0, 0)'){ + backcolor = tmp; + } + toOfDOM = e.body; + e = e.parentNode; + } + + var rgbaregex = /rgb[a]*\((\d+),\s*(\d+),\s*(\d+)/ // modern browsers + , hexregex = /#([AaBbCcDdEeFf\d]{2})([AaBbCcDdEeFf\d]{2})([AaBbCcDdEeFf\d]{2})/ // IE 8 and less. + , frontcolorcomponents; + + // Decomposing Front color into R, G, B ints + tmp = undef; + tmp = frontcolor.match(rgbaregex); + if (tmp){ + frontcolorcomponents = {'r':parseInt(tmp[1],10),'g':parseInt(tmp[2],10),'b':parseInt(tmp[3],10)}; + } else { + tmp = frontcolor.match(hexregex); + if (tmp) { + frontcolorcomponents = {'r':parseInt(tmp[1],16),'g':parseInt(tmp[2],16),'b':parseInt(tmp[3],16)}; + } + } +// if(!frontcolorcomponents){ +// frontcolorcomponents = {'r':255,'g':255,'b':255} +// } + + var backcolorcomponents + // Decomposing back color into R, G, B ints + if(!backcolor){ + // HIghly unlikely since this means that no background styling was applied to any element from here to top of dom. + // we'll pick up back color from front color + if(frontcolorcomponents){ + if (Math.max.apply(null, [frontcolorcomponents.r, frontcolorcomponents.g, frontcolorcomponents.b]) > 127){ + backcolorcomponents = {'r':0,'g':0,'b':0}; + } else { + backcolorcomponents = {'r':255,'g':255,'b':255}; + } + } else { + // arg!!! front color is in format we don't understand (hsl, named colors) + // Let's just go with white background. + backcolorcomponents = {'r':255,'g':255,'b':255}; + } + } else { + tmp = undef; + tmp = backcolor.match(rgbaregex); + if (tmp){ + backcolorcomponents = {'r':parseInt(tmp[1],10),'g':parseInt(tmp[2],10),'b':parseInt(tmp[3],10)}; + } else { + tmp = backcolor.match(hexregex); + if (tmp) { + backcolorcomponents = {'r':parseInt(tmp[1],16),'g':parseInt(tmp[2],16),'b':parseInt(tmp[3],16)}; + } + } +// if(!backcolorcomponents){ +// backcolorcomponents = {'r':0,'g':0,'b':0} +// } + } + + // Deriving Decor color + // THis is LAZY!!!! Better way would be to use HSL and adjust luminocity. However, that could be an overkill. + + var toRGBfn = function(o){return 'rgb(' + [o.r, o.g, o.b].join(', ') + ')'} + , decorcolorcomponents + , frontcolorbrightness + , adjusted; + + if (frontcolorcomponents && backcolorcomponents){ + var backcolorbrightness = Math.max.apply(null, [frontcolorcomponents.r, frontcolorcomponents.g, frontcolorcomponents.b]); + + frontcolorbrightness = Math.max.apply(null, [backcolorcomponents.r, backcolorcomponents.g, backcolorcomponents.b]); + adjusted = Math.round(frontcolorbrightness + (-1 * (frontcolorbrightness - backcolorbrightness) * 0.75)); // "dimming" the difference between pen and back. + decorcolorcomponents = {'r':adjusted,'g':adjusted,'b':adjusted}; // always shade of gray + } else if (frontcolorcomponents) { + frontcolorbrightness = Math.max.apply(null, [frontcolorcomponents.r, frontcolorcomponents.g, frontcolorcomponents.b]); + var polarity = +1; + if (frontcolorbrightness > 127){ + polarity = -1; + } + // shifting by 25% (64 points on RGB scale) + adjusted = Math.round(frontcolorbrightness + (polarity * 96)); // "dimming" the pen's color by 75% to get decor color. + decorcolorcomponents = {'r':adjusted,'g':adjusted,'b':adjusted}; // always shade of gray + } else { + decorcolorcomponents = {'r':191,'g':191,'b':191}; // always shade of gray + } + + return { + 'color': frontcolor + , 'background-color': backcolorcomponents? toRGBfn(backcolorcomponents) : backcolor + , 'decor-color': toRGBfn(decorcolorcomponents) + }; +} + +function Vector(x,y){ + this.x = x; + this.y = y; + this.reverse = function(){ + return new this.constructor( + this.x * -1 + , this.y * -1 + ); + }; + this._length = null; + this.getLength = function(){ + if (!this._length){ + this._length = Math.sqrt( Math.pow(this.x, 2) + Math.pow(this.y, 2) ); + } + return this._length; + }; + + var polarity = function (e){ + return Math.round(e / Math.abs(e)); + }; + this.resizeTo = function(length){ + // proportionally changes x,y such that the hypotenuse (vector length) is = new length + if (this.x === 0 && this.y === 0){ + this._length = 0; + } else if (this.x === 0){ + this._length = length; + this.y = length * polarity(this.y); + } else if(this.y === 0){ + this._length = length; + this.x = length * polarity(this.x); + } else { + var proportion = Math.abs(this.y / this.x) + , x = Math.sqrt(Math.pow(length, 2) / (1 + Math.pow(proportion, 2))) + , y = proportion * x; + this._length = length; + this.x = x * polarity(this.x); + this.y = y * polarity(this.y); + } + return this; + }; + + /** + * Calculates the angle between 'this' vector and another. + * @public + * @function + * @returns {Number} The angle between the two vectors as measured in PI. + */ + this.angleTo = function(vectorB) { + var divisor = this.getLength() * vectorB.getLength(); + if (divisor === 0) { + return 0; + } else { + // JavaScript floating point math is screwed up. + // because of it, the core of the formula can, on occasion, have values + // over 1.0 and below -1.0. + return Math.acos( + Math.min( + Math.max( + ( this.x * vectorB.x + this.y * vectorB.y ) / divisor + , -1.0 + ) + , 1.0 + ) + ) / Math.PI; + } + }; +} + +function Point(x,y){ + this.x = x; + this.y = y; + + this.getVectorToCoordinates = function (x, y) { + return new Vector(x - this.x, y - this.y); + }; + this.getVectorFromCoordinates = function (x, y) { + return this.getVectorToCoordinates(x, y).reverse(); + }; + this.getVectorToPoint = function (point) { + return new Vector(point.x - this.x, point.y - this.y); + }; + this.getVectorFromPoint = function (point) { + return this.getVectorToPoint(point).reverse(); + }; +} + +/* + * About data structure: + * We don't store / deal with "pictures" this signature capture code captures "vectors" + * + * We don't store bitmaps. We store "strokes" as arrays of arrays. (Actually, arrays of objects containing arrays of coordinates. + * + * Stroke = mousedown + mousemoved * n (+ mouseup but we don't record that as that was the "end / lack of movement" indicator) + * + * Vectors = not classical vectors where numbers indicated shift relative last position. Our vectors are actually coordinates against top left of canvas. + * we could calc the classical vectors, but keeping the the actual coordinates allows us (through Math.max / min) + * to calc the size of resulting drawing very quickly. If we want classical vectors later, we can always get them in backend code. + * + * So, the data structure: + * + * var data = [ + * { // stroke starts + * x : [101, 98, 57, 43] // x points + * , y : [1, 23, 65, 87] // y points + * } // stroke ends + * , { // stroke starts + * x : [55, 56, 57, 58] // x points + * , y : [101, 97, 54, 4] // y points + * } // stroke ends + * , { // stroke consisting of just a dot + * x : [53] // x points + * , y : [151] // y points + * } // stroke ends + * ] + * + * we don't care or store stroke width (it's canvas-size-relative), color, shadow values. These can be added / changed on whim post-capture. + * + */ +function DataEngine(storageObject, context, startStrokeFn, addToStrokeFn, endStrokeFn){ + this.data = storageObject; // we expect this to be an instance of Array + this.context = context; + + if (storageObject.length){ + // we have data to render + var numofstrokes = storageObject.length + , stroke + , numofpoints; + + for (var i = 0; i < numofstrokes; i++){ + stroke = storageObject[i]; + numofpoints = stroke.x.length; + startStrokeFn.call(context, stroke); + for(var j = 1; j < numofpoints; j++){ + addToStrokeFn.call(context, stroke, j); + } + endStrokeFn.call(context, stroke); + } + } + + this.changed = function(){}; + + this.startStrokeFn = startStrokeFn; + this.addToStrokeFn = addToStrokeFn; + this.endStrokeFn = endStrokeFn; + + this.inStroke = false; + + this._lastPoint = null; + this._stroke = null; + this.startStroke = function(point){ + if(point && typeof(point.x) == "number" && typeof(point.y) == "number"){ + this._stroke = {'x':[point.x], 'y':[point.y]}; + this.data.push(this._stroke); + this._lastPoint = point; + this.inStroke = true; + // 'this' does not work same inside setTimeout( + var stroke = this._stroke + , fn = this.startStrokeFn + , context = this.context; + setTimeout( + // some IE's don't support passing args per setTimeout API. Have to create closure every time instead. + function() {fn.call(context, stroke)} + , 3 + ); + return point; + } else { + return null; + } + }; + // that "5" at the very end of this if is important to explain. + // we do NOT render links between two captured points (in the middle of the stroke) if the distance is shorter than that number. + // not only do we NOT render it, we also do NOT capture (add) these intermediate points to storage. + // when clustering of these is too tight, it produces noise on the line, which, because of smoothing, makes lines too curvy. + // maybe, later, we can expose this as a configurable setting of some sort. + this.addToStroke = function(point){ + if (this.inStroke && + typeof(point.x) === "number" && + typeof(point.y) === "number" && + // calculates absolute shift in diagonal pixels away from original point + (Math.abs(point.x - this._lastPoint.x) + Math.abs(point.y - this._lastPoint.y)) > 4 + ){ + var positionInStroke = this._stroke.x.length; + this._stroke.x.push(point.x); + this._stroke.y.push(point.y); + this._lastPoint = point; + + var stroke = this._stroke + , fn = this.addToStrokeFn + , context = this.context; + setTimeout( + // some IE's don't support passing args per setTimeout API. Have to create closure every time instead. + function() {fn.call(context, stroke, positionInStroke)} + , 3 + ); + return point; + } else { + return null; + } + }; + this.endStroke = function(){ + var c = this.inStroke; + this.inStroke = false; + this._lastPoint = null; + if (c){ + var stroke = this._stroke + , fn = this.endStrokeFn // 'this' does not work same inside setTimeout( + , context = this.context + , changedfn = this.changed; + setTimeout( + // some IE's don't support passing args per setTimeout API. Have to create closure every time instead. + function(){ + fn.call(context, stroke); + changedfn.call(context); + } + , 3 + ); + return true; + } else { + return null; + } + }; +} + +var basicDot = function(ctx, x, y, size){ + var fillStyle = ctx.fillStyle; + ctx.fillStyle = ctx.strokeStyle; + ctx.fillRect(x + size / -2 , y + size / -2, size, size); + ctx.fillStyle = fillStyle; +} +, basicLine = function(ctx, startx, starty, endx, endy){ + ctx.beginPath(); + ctx.moveTo(startx, starty); + ctx.lineTo(endx, endy); + ctx.closePath(); + ctx.stroke(); +} +, basicCurve = function(ctx, startx, starty, endx, endy, cp1x, cp1y, cp2x, cp2y){ + ctx.beginPath(); + ctx.moveTo(startx, starty); + ctx.bezierCurveTo(cp1x, cp1y, cp2x, cp2y, endx, endy); + ctx.closePath(); + ctx.stroke(); +} +, strokeStartCallback = function(stroke) { + // this = jSignatureClass instance + basicDot(this.canvasContext, stroke.x[0], stroke.y[0], this.settings.lineWidth); +} +, strokeAddCallback = function(stroke, positionInStroke){ + // this = jSignatureClass instance + + // Because we are funky this way, here we draw TWO curves. + // 1. POSSIBLY "this line" - spanning from point right before us, to this latest point. + // 2. POSSIBLY "prior curve" - spanning from "latest point" to the one before it. + + // Why you ask? + // long lines (ones with many pixels between them) do not look good when they are part of a large curvy stroke. + // You know, the jaggedy crocodile spine instead of a pretty, smooth curve. Yuck! + // We want to approximate pretty curves in-place of those ugly lines. + // To approximate a very nice curve we need to know the direction of line before and after. + // Hence, on long lines we actually wait for another point beyond it to come back from + // mousemoved before we draw this curve. + + // So for "prior curve" to be calc'ed we need 4 points + // A, B, C, D (we are on D now, A is 3 points in the past.) + // and 3 lines: + // pre-line (from points A to B), + // this line (from points B to C), (we call it "this" because if it was not yet, it's the only one we can draw for sure.) + // post-line (from points C to D) (even through D point is 'current' we don't know how we can draw it yet) + // + // Well, actually, we don't need to *know* the point A, just the vector A->B + var Cpoint = new Point(stroke.x[positionInStroke-1], stroke.y[positionInStroke-1]) + , Dpoint = new Point(stroke.x[positionInStroke], stroke.y[positionInStroke]) + , CDvector = Cpoint.getVectorToPoint(Dpoint); + + // Again, we have a chance here to draw TWO things: + // BC Curve (only if it's long, because if it was short, it was drawn by previous callback) and + // CD Line (only if it's short) + + // So, let's start with BC curve. + // if there is only 2 points in stroke array, we don't have "history" long enough to have point B, let alone point A. + // Falling through to drawing line CD is proper, as that's the only line we have points for. + if(positionInStroke > 1) { + // we are here when there are at least 3 points in stroke array. + var Bpoint = new Point(stroke.x[positionInStroke-2], stroke.y[positionInStroke-2]) + , BCvector = Bpoint.getVectorToPoint(Cpoint) + , ABvector; + if(BCvector.getLength() > this.lineCurveThreshold){ + // Yey! Pretty curves, here we come! + if(positionInStroke > 2) { + // we are here when at least 4 points in stroke array. + ABvector = (new Point(stroke.x[positionInStroke-3], stroke.y[positionInStroke-3])).getVectorToPoint(Bpoint); + } else { + ABvector = new Vector(0,0); + } + + var minlenfraction = 0.05 + , maxlen = BCvector.getLength() * 0.35 + , ABCangle = BCvector.angleTo(ABvector.reverse()) + , BCDangle = CDvector.angleTo(BCvector.reverse()) + , BCP1vector = new Vector(ABvector.x + BCvector.x, ABvector.y + BCvector.y).resizeTo( + Math.max(minlenfraction, ABCangle) * maxlen + ) + , CCP2vector = (new Vector(BCvector.x + CDvector.x, BCvector.y + CDvector.y)).reverse().resizeTo( + Math.max(minlenfraction, BCDangle) * maxlen + ); + + basicCurve( + this.canvasContext + , Bpoint.x + , Bpoint.y + , Cpoint.x + , Cpoint.y + , Bpoint.x + BCP1vector.x + , Bpoint.y + BCP1vector.y + , Cpoint.x + CCP2vector.x + , Cpoint.y + CCP2vector.y + ); + } + } + if(CDvector.getLength() <= this.lineCurveThreshold){ + basicLine( + this.canvasContext + , Cpoint.x + , Cpoint.y + , Dpoint.x + , Dpoint.y + ); + } +} +, strokeEndCallback = function(stroke){ + // this = jSignatureClass instance + + // Here we tidy up things left unfinished in last strokeAddCallback run. + + // What's POTENTIALLY left unfinished there is the curve between the last points + // in the stroke, if the len of that line is more than lineCurveThreshold + // If the last line was shorter than lineCurveThreshold, it was drawn there, and there + // is nothing for us here to do. + // We can also be called when there is only one point in the stroke (meaning, the + // stroke was just a dot), in which case, again, there is nothing for us to do. + + // So for "this curve" to be calc'ed we need 3 points + // A, B, C + // and 2 lines: + // pre-line (from points A to B), + // this line (from points B to C) + // Well, actually, we don't need to *know* the point A, just the vector A->B + // so, we really need points B, C and AB vector. + var positionInStroke = stroke.x.length - 1; + + if (positionInStroke > 0){ + // there are at least 2 points in the stroke.we are in business. + var Cpoint = new Point(stroke.x[positionInStroke], stroke.y[positionInStroke]) + , Bpoint = new Point(stroke.x[positionInStroke-1], stroke.y[positionInStroke-1]) + , BCvector = Bpoint.getVectorToPoint(Cpoint) + , ABvector; + if (BCvector.getLength() > this.lineCurveThreshold){ + // yep. This one was left undrawn in prior callback. Have to draw it now. + if (positionInStroke > 1){ + // we have at least 3 elems in stroke + ABvector = (new Point(stroke.x[positionInStroke-2], stroke.y[positionInStroke-2])).getVectorToPoint(Bpoint); + var BCP1vector = new Vector(ABvector.x + BCvector.x, ABvector.y + BCvector.y).resizeTo(BCvector.getLength() / 2); + basicCurve( + this.canvasContext + , Bpoint.x + , Bpoint.y + , Cpoint.x + , Cpoint.y + , Bpoint.x + BCP1vector.x + , Bpoint.y + BCP1vector.y + , Cpoint.x + , Cpoint.y + ); + } else { + // Since there is no AB leg, there is no curve to draw. This line is still "long" but no curve. + basicLine( + this.canvasContext + , Bpoint.x + , Bpoint.y + , Cpoint.x + , Cpoint.y + ); + } + } + } +} + + +/* +var getDataStats = function(){ + var strokecnt = strokes.length + , stroke + , pointid + , pointcnt + , x, y + , maxX = Number.NEGATIVE_INFINITY + , maxY = Number.NEGATIVE_INFINITY + , minX = Number.POSITIVE_INFINITY + , minY = Number.POSITIVE_INFINITY + for(strokeid = 0; strokeid < strokecnt; strokeid++){ + stroke = strokes[strokeid] + pointcnt = stroke.length + for(pointid = 0; pointid < pointcnt; pointid++){ + x = stroke.x[pointid] + y = stroke.y[pointid] + if (x > maxX){ + maxX = x + } else if (x < minX) { + minX = x + } + if (y > maxY){ + maxY = y + } else if (y < minY) { + minY = y + } + } + } + return {'maxX': maxX, 'minX': minX, 'maxY': maxY, 'minY': minY} +} +*/ + +function conditionallyLinkCanvasResizeToWindowResize(jSignatureInstance, settingsWidth, apinamespace, globalEvents){ + 'use strict' + if ( settingsWidth === 'ratio' || settingsWidth.split('')[settingsWidth.length - 1] === '%' ) { + + this.eventTokens[apinamespace + '.parentresized'] = globalEvents.subscribe( + apinamespace + '.parentresized' + , (function(eventTokens, $parent, originalParentWidth, sizeRatio){ + 'use strict' + + return function(){ + 'use strict' + + var w = $parent.width(); + if (w !== originalParentWidth) { + + // UNsubscribing this particular instance of signature pad only. + // there is a separate `eventTokens` per each instance of signature pad + for (var key in eventTokens){ + if (eventTokens.hasOwnProperty(key)) { + globalEvents.unsubscribe(eventTokens[key]); + delete eventTokens[key]; + } + } + + var settings = jSignatureInstance.settings; + jSignatureInstance.$parent.children().remove(); + for (var key in jSignatureInstance){ + if (jSignatureInstance.hasOwnProperty(key)) { + delete jSignatureInstance[key]; + } + } + + // scale data to new signature pad size + settings.data = (function(data, scale){ + var newData = []; + var o, i, l, j, m, stroke; + for ( i = 0, l = data.length; i < l; i++) { + stroke = data[i]; + + o = {'x':[],'y':[]}; + + for ( j = 0, m = stroke.x.length; j < m; j++) { + o.x.push(stroke.x[j] * scale); + o.y.push(stroke.y[j] * scale); + } + + newData.push(o); + } + return newData; + })( + settings.data + , w * 1.0 / originalParentWidth + ) + + $parent[apinamespace](settings); + } + } + })( + this.eventTokens + , this.$parent + , this.$parent.width() + , this.canvas.width * 1.0 / this.canvas.height + ) + ) + } +}; + + +function jSignatureClass(parent, options, instanceExtensions) { + + var $parent = this.$parent = $(parent) + , eventTokens = this.eventTokens = {} + , events = this.events = new PubSubClass(this) + , globalEvents = $.fn[apinamespace]('globalEvents') + , settings = { + 'width' : 'ratio' + ,'height' : 'ratio' + ,'sizeRatio': 4 // only used when height = 'ratio' + ,'color' : '#000' + ,'background-color': '#fff' + ,'decor-color': '#eee' + ,'lineWidth' : 0 + ,'minFatFingerCompensation' : -10 + ,'showUndoButton': false + ,'readOnly': false + ,'data': [] + }; + + $.extend(settings, getColors($parent)); + if (options) { + $.extend(settings, options); + } + this.settings = settings; + + for (var extensionName in instanceExtensions){ + if (instanceExtensions.hasOwnProperty(extensionName)) { + instanceExtensions[extensionName].call(this, extensionName); + } + } + + this.events.publish(apinamespace+'.initializing'); + + // these, when enabled, will hover above the sig area. Hence we append them to DOM before canvas. + this.$controlbarUpper = (function(){ + var controlbarstyle = 'padding:0 !important; margin:0 !important;'+ + 'width: 100% !important; height: 0 !important; -ms-touch-action: none;'+ + 'margin-top:-1em !important; margin-bottom:1em !important;'; + return $('
').appendTo($parent); + })(); + + this.isCanvasEmulator = false; // will be flipped by initializer when needed. + var canvas = this.canvas = this.initializeCanvas(settings) + , $canvas = $(canvas); + + this.$controlbarLower = (function(){ + var controlbarstyle = 'padding:0 !important; margin:0 !important;'+ + 'width: 100% !important; height: 0 !important; -ms-touch-action: none;'+ + 'margin-top:-1.5em !important; margin-bottom:1.5em !important; position: relative;'; + return $('
').appendTo($parent); + })(); + + this.canvasContext = canvas.getContext("2d"); + + // Most of our exposed API will be looking for this: + $canvas.data(apinamespace + '.this', this); + + settings.lineWidth = (function(defaultLineWidth, canvasWidth){ + if (!defaultLineWidth){ + return Math.max( + Math.round(canvasWidth / 400) /*+1 pixel for every extra 300px of width.*/ + , 2 /* minimum line width */ + ); + } else { + return defaultLineWidth; + } + })(settings.lineWidth, canvas.width); + + this.lineCurveThreshold = settings.lineWidth * 3; + + // Add custom class if defined + if(settings.cssclass && $.trim(settings.cssclass) != "") { + $canvas.addClass(settings.cssclass); + } + + // used for shifting the drawing point up on touch devices, so one can see the drawing above the finger. + this.fatFingerCompensation = 0; + + var movementHandlers = (function(jSignatureInstance) { + + //================================ + // mouse down, move, up handlers: + + // shifts - adjustment values in viewport pixels drived from position of canvas on the page + var shiftX + , shiftY + , setStartValues = function(){ + var tos = $(jSignatureInstance.canvas).offset() + shiftX = tos.left * -1 + shiftY = tos.top * -1 + } + , getPointFromEvent = function(e) { + var firstEvent = (e.changedTouches && e.changedTouches.length > 0 ? e.changedTouches[0] : e); + // All devices i tried report correct coordinates in pageX,Y + // Android Chrome 2.3.x, 3.1, 3.2., Opera Mobile, safari iOS 4.x, + // Windows: Chrome, FF, IE9, Safari + // None of that scroll shift calc vs screenXY other sigs do is needed. + // ... oh, yeah, the "fatFinger.." is for tablets so that people see what they draw. + return new Point( + Math.round(firstEvent.pageX + shiftX) + , Math.round(firstEvent.pageY + shiftY) + jSignatureInstance.fatFingerCompensation + ); + } + , timer = new KickTimerClass( + 750 + , function() { jSignatureInstance.dataEngine.endStroke(); } + ); + + this.drawEndHandler = function(e) { + if (!jSignatureInstance.settings.readOnly) { + try { e.preventDefault(); } catch (ex) {} + timer.clear(); + jSignatureInstance.dataEngine.endStroke(); + } + }; + this.drawStartHandler = function(e) { + if (!jSignatureInstance.settings.readOnly) { + e.preventDefault(); + // for performance we cache the offsets + // we recalc these only at the beginning the stroke + setStartValues(); + jSignatureInstance.dataEngine.startStroke( getPointFromEvent(e) ); + timer.kick(); + } + }; + this.drawMoveHandler = function(e) { + if (!jSignatureInstance.settings.readOnly) { + e.preventDefault(); + if (!jSignatureInstance.dataEngine.inStroke){ + return; + } + jSignatureInstance.dataEngine.addToStroke( getPointFromEvent(e) ); + timer.kick(); + } + }; + + return this; + + }).call( {}, this ) + + // + //================================ + + ;(function(drawEndHandler, drawStartHandler, drawMoveHandler) { + var canvas = this.canvas + , $canvas = $(canvas) + , undef; + if (this.isCanvasEmulator){ + $canvas.bind('mousemove.'+apinamespace, drawMoveHandler); + $canvas.bind('mouseup.'+apinamespace, drawEndHandler); + $canvas.bind('mousedown.'+apinamespace, drawStartHandler); + } else { + canvas.ontouchstart = function(e) { + canvas.onmousedown = canvas.onmouseup = canvas.onmousemove = undef; + + this.fatFingerCompensation = ( + settings.minFatFingerCompensation && + settings.lineWidth * -3 > settings.minFatFingerCompensation + ) ? settings.lineWidth * -3 : settings.minFatFingerCompensation; + + drawStartHandler(e); + + canvas.ontouchend = drawEndHandler; + canvas.ontouchstart = drawStartHandler; + canvas.ontouchmove = drawMoveHandler; + }; + canvas.onmousedown = function(e) { + canvas.ontouchstart = canvas.ontouchend = canvas.ontouchmove = undef; + + drawStartHandler(e); + + canvas.onmousedown = drawStartHandler; + canvas.onmouseup = drawEndHandler; + canvas.onmousemove = drawMoveHandler; + } + if (window.navigator.msPointerEnabled) { + canvas.onmspointerdown = drawStartHandler; + canvas.onmspointerup = drawEndHandler; + canvas.onmspointermove = drawMoveHandler; + } + } + }).call( + this + , movementHandlers.drawEndHandler + , movementHandlers.drawStartHandler + , movementHandlers.drawMoveHandler + ) + + //========================================= + // various event handlers + + // on mouseout + mouseup canvas did not know that mouseUP fired. Continued to draw despite mouse UP. + // it is bettr than + // $canvas.bind('mouseout', drawEndHandler) + // because we don't want to break the stroke where user accidentally gets ouside and wants to get back in quickly. + eventTokens[apinamespace + '.windowmouseup'] = globalEvents.subscribe( + apinamespace + '.windowmouseup' + , movementHandlers.drawEndHandler + ); + + this.events.publish(apinamespace+'.attachingEventHandlers'); + + // If we have proportional width, we sign up to events broadcasting "window resized" and checking if + // parent's width changed. If so, we (1) extract settings + data from current signature pad, + // (2) remove signature pad from parent, and (3) reinit new signature pad at new size with same settings, (rescaled) data. + conditionallyLinkCanvasResizeToWindowResize.call( + this + , this + , settings.width.toString(10) + , apinamespace, globalEvents + ); + + // end of event handlers. + // =============================== + + this.resetCanvas(settings.data); + + // resetCanvas renders the data on the screen and fires ONE "change" event + // if there is data. If you have controls that rely on "change" firing + // attach them to something that runs before this.resetCanvas, like + // apinamespace+'.attachingEventHandlers' that fires a bit higher. + this.events.publish(apinamespace+'.initialized'); + + return this; +} // end of initBase + +//========================================================================= +// jSignatureClass's methods and supporting fn's + +jSignatureClass.prototype.resetCanvas = function(data, dontClear){ + var canvas = this.canvas + , settings = this.settings + , ctx = this.canvasContext + , isCanvasEmulator = this.isCanvasEmulator + , cw = canvas.width + , ch = canvas.height; + + // preparing colors, drawing area + if (!dontClear){ + ctx.clearRect(0, 0, cw + 30, ch + 30); + } + + ctx.shadowColor = ctx.fillStyle = settings['background-color'] + if (isCanvasEmulator){ + // FLashCanvas fills with Black by default, covering up the parent div's background + // hence we refill + ctx.fillRect(0,0,cw + 30, ch + 30); + } + + ctx.lineWidth = Math.ceil(parseInt(settings.lineWidth, 10)); + ctx.lineCap = ctx.lineJoin = "round"; + + // signature line + if (null != settings['decor-color']) { + ctx.strokeStyle = settings['decor-color']; + ctx.shadowOffsetX = 0; + ctx.shadowOffsetY = 0; + var lineoffset = Math.round( ch / 5 ); + basicLine(ctx, lineoffset * 1.5, ch - lineoffset, cw - (lineoffset * 1.5), ch - lineoffset); + } + ctx.strokeStyle = settings.color; + + if (!isCanvasEmulator){ + ctx.shadowColor = ctx.strokeStyle; + ctx.shadowOffsetX = ctx.lineWidth * 0.5; + ctx.shadowOffsetY = ctx.lineWidth * -0.6; + ctx.shadowBlur = 0; + } + + // setting up new dataEngine + + if (!data) { data = []; } + + var dataEngine = this.dataEngine = new DataEngine( + data + , this + , strokeStartCallback + , strokeAddCallback + , strokeEndCallback + ); + + settings.data = data; // onwindowresize handler uses it, i think. + $(canvas).data(apinamespace+'.data', data) + .data(apinamespace+'.settings', settings); + + // we fire "change" event on every change in data. + // setting this up: + dataEngine.changed = (function(target, events, apinamespace) { + 'use strict' + return function() { + events.publish(apinamespace+'.change'); + target.trigger('change'); + } + })(this.$parent, this.events, apinamespace); + // let's trigger change on all data reloads + dataEngine.changed(); + + // import filters will be passing this back as indication of "we rendered" + return true; +}; + +function initializeCanvasEmulator(canvas){ + if (canvas.getContext){ + return false; + } else { + // for cases when jSignature, FlashCanvas is inserted + // from one window into another (child iframe) + // 'window' and 'FlashCanvas' may be stuck behind + // in that other parent window. + // we need to find it + var window = canvas.ownerDocument.parentWindow; + var FC = window.FlashCanvas ? + canvas.ownerDocument.parentWindow.FlashCanvas : + ( + typeof FlashCanvas === "undefined" ? + undefined : + FlashCanvas + ); + + if (FC) { + canvas = FC.initElement(canvas); + + var zoom = 1; + // FlashCanvas uses flash which has this annoying habit of NOT scaling with page zoom. + // It matches pixel-to-pixel to screen instead. + // Since we are targeting ONLY IE 7, 8 with FlashCanvas, we will test the zoom only the IE8, IE7 way + if (window && window.screen && window.screen.deviceXDPI && window.screen.logicalXDPI){ + zoom = window.screen.deviceXDPI * 1.0 / window.screen.logicalXDPI; + } + if (zoom !== 1){ + try { + // We effectively abuse the brokenness of FlashCanvas and force the flash rendering surface to + // occupy larger pixel dimensions than the wrapping, scaled up DIV and Canvas elems. + $(canvas).children('object').get(0).resize(Math.ceil(canvas.width * zoom), Math.ceil(canvas.height * zoom)); + // And by applying "scale" transformation we can talk "browser pixels" to FlashCanvas + // and have it translate the "browser pixels" to "screen pixels" + canvas.getContext('2d').scale(zoom, zoom); + // Note to self: don't reuse Canvas element. Repeated "scale" are cumulative. + } catch (ex) {} + } + return true; + } else { + throw new Error("Canvas element does not support 2d context. jSignature cannot proceed."); + } + } + +} + +jSignatureClass.prototype.initializeCanvas = function(settings) { + // =========== + // Init + Sizing code + + var canvas = document.createElement('canvas') + , $canvas = $(canvas); + + // We cannot work with circular dependency + if (settings.width === settings.height && settings.height === 'ratio') { + settings.width = '100%'; + } + + $canvas.css( + 'margin' + , 0 + ).css( + 'padding' + , 0 + ).css( + 'border' + , 'none' + ).css( + 'height' + , settings.height === 'ratio' || !settings.height ? 1 : settings.height.toString(10) + ).css( + 'width' + , settings.width === 'ratio' || !settings.width ? 1 : settings.width.toString(10) + ).css( + '-ms-touch-action' + , 'none' + ).css( + 'background-color', + settings['background-color'] + ); + + $canvas.appendTo(this.$parent); + + // we could not do this until canvas is rendered (appended to DOM) + if (settings.height === 'ratio') { + $canvas.css( + 'height' + , Math.round( $canvas.width() / settings.sizeRatio ) + ); + } else if (settings.width === 'ratio') { + $canvas.css( + 'width' + , Math.round( $canvas.height() * settings.sizeRatio ) + ); + } + + $canvas.addClass(apinamespace); + + // canvas's drawing area resolution is independent from canvas's size. + // pixels are just scaled up or down when internal resolution does not + // match external size. So... + + canvas.width = $canvas.width(); + canvas.height = $canvas.height(); + + // Special case Sizing code + + this.isCanvasEmulator = initializeCanvasEmulator(canvas); + + // End of Sizing Code + // =========== + + // normally select preventer would be short, but + // Canvas emulator on IE does NOT provide value for Event. Hence this convoluted line. + canvas.onselectstart = function(e){if(e && e.preventDefault){e.preventDefault()}; if(e && e.stopPropagation){e.stopPropagation()}; return false;}; + + return canvas; +} + + +var GlobalJSignatureObjectInitializer = function(window){ + + var globalEvents = new PubSubClass(); + + // common "window resized" event listener. + // jSignature instances will subscribe to this chanel. + // to resize themselves when needed. + ;(function(globalEvents, apinamespace, $, window){ + 'use strict' + + var resizetimer + , runner = function(){ + globalEvents.publish( + apinamespace + '.parentresized' + ) + }; + + // jSignature knows how to resize its content when its parent is resized + // window resize is the only way we can catch resize events though... + $(window).bind('resize.'+apinamespace, function(){ + if (resizetimer) { + clearTimeout(resizetimer); + } + resizetimer = setTimeout( + runner + , 500 + ); + }) + // when mouse exists canvas element and "up"s outside, we cannot catch it with + // callbacks attached to canvas. This catches it outside. + .bind('mouseup.'+apinamespace, function(e){ + globalEvents.publish( + apinamespace + '.windowmouseup' + ) + }); + + })(globalEvents, apinamespace, $, window) + + var jSignatureInstanceExtensions = { + /* + 'exampleExtension':function(extensionName){ + // we are called very early in instance's life. + // right after the settings are resolved and + // jSignatureInstance.events is created + // and right before first ("jSignature.initializing") event is called. + // You don't really need to manupilate + // jSignatureInstance directly, just attach + // a bunch of events to jSignatureInstance.events + // (look at the source of jSignatureClass to see when these fire) + // and your special pieces of code will attach by themselves. + + // this function runs every time a new instance is set up. + // this means every var you create will live only for one instance + // unless you attach it to something outside, like "window." + // and pick it up later from there. + + // when globalEvents' events fire, 'this' is globalEvents object + // when jSignatureInstance's events fire, 'this' is jSignatureInstance + + // Here, + // this = is new jSignatureClass's instance. + + // The way you COULD approch setting this up is: + // if you have multistep set up, attach event to "jSignature.initializing" + // that attaches other events to be fired further lower the init stream. + // Or, if you know for sure you rely on only one jSignatureInstance's event, + // just attach to it directly + + this.events.subscribe( + // name of the event + apinamespace + '.initializing' + // event handlers, can pass args too, but in majority of cases, + // 'this' which is jSignatureClass object instance pointer is enough to get by. + , function(){ + if (this.settings.hasOwnProperty('non-existent setting category?')) { + console.log(extensionName + ' is here') + } + } + ) + } + */ + }; + + var exportplugins = { + 'default':function(data){return this.toDataURL()} + , 'native':function(data){return data} + , 'image':function(data){ + /*this = canvas elem */ + var imagestring = this.toDataURL(); + + if (typeof imagestring === 'string' && + imagestring.length > 4 && + imagestring.slice(0,5) === 'data:' && + imagestring.indexOf(',') !== -1){ + + var splitterpos = imagestring.indexOf(','); + + return [ + imagestring.slice(5, splitterpos) + , imagestring.substr(splitterpos + 1) + ]; + } + return []; + } + }; + + // will be part of "importplugins" + function _renderImageOnCanvas( data, formattype, rerendercallable ) { + 'use strict' + // #1. Do NOT rely on this. No worky on IE + // (url max len + lack of base64 decoder + possibly other issues) + // #2. This does NOT affect what is captured as "signature" as far as vector data is + // concerned. This is treated same as "signature line" - i.e. completely ignored + // the only time you see imported image data exported is if you export as image. + + // we do NOT call rerendercallable here (unlike in other import plugins) + // because importing image does absolutely nothing to the underlying vector data storage + // This could be a way to "import" old signatures stored as images + // This could also be a way to import extra decor into signature area. + + var img = new Image() + // this = Canvas DOM elem. Not jQuery object. Not Canvas's parent div. + , c = this; + + img.onload = function () { + var ctx = c.getContext("2d"); + var oldShadowColor = ctx.shadowColor; + ctx.shadowColor = "transparent"; + ctx.drawImage( + img, 0, 0 + , ( img.width < c.width) ? img.width : c.width + , ( img.height < c.height) ? img.height : c.height + ); + ctx.shadowColor = oldShadowColor; + }; + + img.src = 'data:' + formattype + ',' + data; + } + + var importplugins = { + 'native':function(data, formattype, rerendercallable){ + // we expect data as Array of objects of arrays here - whatever 'default' EXPORT plugin spits out. + // returning Truthy to indicate we are good, all updated. + rerendercallable( data ); + } + , 'image': _renderImageOnCanvas + , 'image/png;base64': _renderImageOnCanvas + , 'image/jpeg;base64': _renderImageOnCanvas + , 'image/jpg;base64': _renderImageOnCanvas + }; + + function _clearDrawingArea( data, dontClear ) { + this.find('canvas.'+apinamespace) + .add(this.filter('canvas.'+apinamespace)) + .data(apinamespace+'.this').resetCanvas( data, dontClear ); + return this; + } + + function _setDrawingData( data, formattype ) { + var undef; + + if (formattype === undef && typeof data === 'string' && data.substr(0,5) === 'data:') { + formattype = data.slice(5).split(',')[0]; + // 5 chars of "data:" + mimetype len + 1 "," char = all skipped. + data = data.slice(6 + formattype.length); + if (formattype === data) { + return; + } + } + + var $canvas = this.find('canvas.'+apinamespace).add(this.filter('canvas.'+apinamespace)); + + if (!importplugins.hasOwnProperty(formattype)) { + throw new Error(apinamespace + " is unable to find import plugin with for format '"+ String(formattype) +"'"); + } else if ($canvas.length !== 0) { + importplugins[formattype].call( + $canvas[0] + , data + , formattype + , (function(jSignatureInstance){ + return function(){ return jSignatureInstance.resetCanvas.apply(jSignatureInstance, arguments) } + })($canvas.data(apinamespace+'.this')) + ); + } + + return this; + } + + var elementIsOrphan = function(e){ + var topOfDOM = false; + e = e.parentNode; + while (e && !topOfDOM){ + topOfDOM = e.body; + e = e.parentNode; + } + return !topOfDOM; + } + + //These are exposed as methods under $obj.jSignature('methodname', *args) + var plugins = {'export':exportplugins, 'import':importplugins, 'instance': jSignatureInstanceExtensions} + , methods = { + 'init' : function( options ) { + return this.each( function() { + if (!elementIsOrphan(this)) { + new jSignatureClass(this, options, jSignatureInstanceExtensions); + } + }) + } + , 'getSettings' : function() { + return this.find('canvas.'+apinamespace) + .add(this.filter('canvas.'+apinamespace)) + .data(apinamespace+'.this').settings; + } + , 'isModified' : function() { + return this.find('canvas.'+apinamespace) + .add(this.filter('canvas.'+apinamespace)) + .data(apinamespace+'.this') + .dataEngine + ._stroke !== null; + } + , 'updateSetting' : function(param, val, forFuture) { + var $canvas = this.find('canvas.'+apinamespace) + .add(this.filter('canvas.'+apinamespace)) + .data(apinamespace+'.this'); + $canvas.settings[param] = val; + $canvas.resetCanvas(( forFuture ? null : $canvas.settings.data ), true); + return $canvas.settings[param]; + } + // around since v1 + , 'clear' : _clearDrawingArea + // was mistakenly introduced instead of 'clear' in v2 + , 'reset' : _clearDrawingArea + , 'addPlugin' : function(pluginType, pluginName, callable){ + if (plugins.hasOwnProperty(pluginType)){ + plugins[pluginType][pluginName] = callable; + } + return this; + } + , 'listPlugins' : function(pluginType){ + var answer = []; + if (plugins.hasOwnProperty(pluginType)){ + var o = plugins[pluginType]; + for (var k in o){ + if (o.hasOwnProperty(k)){ + answer.push(k); + } + } + } + return answer; + } + , 'getData' : function( formattype ) { + var undef, $canvas=this.find('canvas.'+apinamespace).add(this.filter('canvas.'+apinamespace)); + if (formattype === undef) { + formattype = 'default'; + } + if ($canvas.length !== 0 && exportplugins.hasOwnProperty(formattype)){ + return exportplugins[formattype].call( + $canvas.get(0) // canvas dom elem + , $canvas.data(apinamespace+'.data') // raw signature data as array of objects of arrays + , $canvas.data(apinamespace+'.settings') + ); + } + } + // around since v1. Took only one arg - data-url-formatted string with (likely png of) signature image + , 'importData' : _setDrawingData + // was mistakenly introduced instead of 'importData' in v2 + , 'setData' : _setDrawingData + // this is one and same instance for all jSignature. + , 'globalEvents' : function(){return globalEvents} + , 'disable' : function() { + this.find("input").attr("disabled", 1); + this.find('canvas.'+apinamespace) + .addClass("disabled") + .data(apinamespace+'.this') + .settings + .readOnly=true; + } + , 'enable' : function() { + this.find("input").removeAttr("disabled"); + this.find('canvas.'+apinamespace) + .removeClass("disabled") + .data(apinamespace+'.this') + .settings + .readOnly=false; + } + // there will be a separate one for each jSignature instance. + , 'events' : function() { + return this.find('canvas.'+apinamespace) + .add(this.filter('canvas.'+apinamespace)) + .data(apinamespace+'.this').events; + } + } // end of methods declaration. + + $.fn[apinamespace] = function(method) { + 'use strict' + if ( !method || typeof method === 'object' ) { + return methods.init.apply( this, arguments ); + } else if ( typeof method === 'string' && methods[method] ) { + return methods[method].apply( this, Array.prototype.slice.call( arguments, 1 )); + } else { + $.error( 'Method ' + String(method) + ' does not exist on jQuery.' + apinamespace ); + } + } + +} // end of GlobalJSignatureObjectInitializer + +GlobalJSignatureObjectInitializer(window) + +})(); diff --git a/web_widget_digitized_signature/static/lib/jquery.signature.js b/web_widget_digitized_signature/static/lib/jquery.signature.js deleted file mode 100644 index 5d8be9e0..00000000 --- a/web_widget_digitized_signature/static/lib/jquery.signature.js +++ /dev/null @@ -1,246 +0,0 @@ - -(function($) { // Hide scope, no $ conflict - -var signatureOverrides = { - - // Global defaults for signature - options: { - background: '#ffffff', // Colour of the background - color: '#000000', // Colour of the signature - thickness: 2, // Thickness of the lines - guideline: false, // Add a guide line or not? - guidelineColor: '#a0a0a0', // Guide line colour - guidelineOffset: 50, // Guide line offset from the bottom - guidelineIndent: 10, // Guide line indent from the edges - notAvailable: 'Your browser doesn\'t support signing', // Error message when no canvas - syncField: null, // Selector for synchronised text field - change: null, // Callback when signature changed - width: 170, - height: 50 - }, - - /* Initialise a new signature area. */ - _create: function() { - - - this.element.addClass(this.widgetFullName || this.widgetBaseClass); - try { - this.canvas = $('' + '' + '')[0]; - this.element.prepend(this.canvas); - this.element.find('img').remove(); - this.ctx = this.canvas.getContext('2d'); - } - catch (e) { - $(this.canvas).remove(); - this.resize = true; - this.canvas = document.createElement('canvas'); - this.canvas.setAttribute('width', this.element.width()); - this.canvas.setAttribute('height', this.element.height()); - this.canvas.innerHTML = this.options.notAvailable; - this.element.append(this.canvas); - if (G_vmlCanvasManager) { // Requires excanvas.js - G_vmlCanvasManager.initElement(this.canvas); - } - this.ctx = this.canvas.getContext('2d'); - } - this._refresh(true); - this._mouseInit(); - }, - - /* Refresh the appearance of the signature area. - @param init (boolean, internal) true if initialising */ - _refresh: function(init) { - if (this.resize) { - var parent = $(this.canvas); - $('div', this.canvas).css({width: parent.width(), height: parent.height()}); - } - this.ctx.fillStyle = this.options.background; - this.ctx.strokeStyle = this.options.color; - this.ctx.lineWidth = this.options.thickness; - this.ctx.lineCap = 'round'; - this.ctx.lineJoin = 'round'; - this.clear(init); - }, - - /* Clear the signature area. - @param init (boolean, internal) true if initialising */ - clear: function(init) { - this.ctx.fillRect(0, 0, this.element.width(), this.element.height()); - if (this.options.guideline) { - this.ctx.save(); - this.ctx.strokeStyle = this.options.guidelineColor; - this.ctx.lineWidth = 1; - this.ctx.beginPath(); - this.ctx.moveTo(this.options.guidelineIndent, - this.element.height() - this.options.guidelineOffset); - this.ctx.lineTo(this.element.width() - this.options.guidelineIndent, - this.element.height() - this.options.guidelineOffset); - this.ctx.stroke(); - this.ctx.restore(); - } - this.lines = []; - if (!init) { - this._changed(); - } - }, - - /* Synchronise changes and trigger change event. - @param event (Event) the triggering event */ - _changed: function(event) { - if (this.options.syncField) { - $(this.options.syncField).val(this.toJSON()); - } - this._trigger('change', event, {}); - }, - - /* Custom options handling. - @param options (object) the new option values */ - _setOptions: function(options) { - if (this._superApply) { - this._superApply(arguments); // Base widget handling - } - else { - $.Widget.prototype._setOptions.apply(this, arguments); // Base widget handling - } - this._refresh(); - }, - - /* Determine if dragging can start. - @param event (Event) the triggering mouse event - @return (boolean) true if allowed, false if not */ - _mouseCapture: function(event) { - return !this.options.disabled; - }, - - /* Start a new line. - @param event (Event) the triggering mouse event */ - _mouseStart: function(event) { - this.offset = this.element.offset(); - this.offset.left -= document.documentElement.scrollLeft || document.body.scrollLeft; - this.offset.top -= document.documentElement.scrollTop || document.body.scrollTop; - this.lastPoint = [this._round(event.clientX - this.offset.left), - this._round(event.clientY - this.offset.top)]; - this.curLine = [this.lastPoint]; - this.lines.push(this.curLine); - }, - - /* Track the mouse. - @param event (Event) the triggering mouse event */ - _mouseDrag: function(event) { - var point = [this._round(event.clientX - this.offset.left), - this._round(event.clientY - this.offset.top)]; - this.curLine.push(point); - this.ctx.beginPath(); - this.ctx.moveTo(this.lastPoint[0], this.lastPoint[1]); - this.ctx.lineTo(point[0], point[1]); - this.ctx.stroke(); - this.lastPoint = point; - }, - - /* End a line. - @param event (Event) the triggering mouse event */ - _mouseStop: function(event) { - this.lastPoint = null; - this.curLine = null; - this._changed(event); - }, - - /* Round to two decimal points. - @param value (number) the value to round - @return (number) the rounded value */ - _round: function(value) { - return Math.round(value * 100) / 100; - }, - - /* Convert the captured lines to JSON text. - @return (string) the JSON text version of the lines */ - toJSON: function() { - return '{"lines":[' + $.map(this.lines, function(line) { - return '[' + $.map(line, function(point) { - return '[' + point + ']'; - }) + ']'; - }) + ']}'; - }, - - /* Convert the captured lines to SVG text. - @return (string) the SVG text version of the lines */ - toSVG: function() { - return '\n\n' + - '\n' + - ' \n' + - ' \n' + - ' \n'+ - $.map(this.lines, function(line) { - return ' \n'; - }).join('') + - ' \n \n\n'; - }, - - /* Draw a signature from its JSON description. - @param sigJSON (object) object with attribute lines - being an array of arrays of points or - (string) text version of the JSON */ - draw: function(sigJSON) { - this.clear(true); - if (typeof sigJSON === 'string') { - sigJSON = $.parseJSON(sigJSON); - } - this.lines = sigJSON.lines || []; - var ctx = this.ctx; - $.each(this.lines, function() { - ctx.beginPath(); - $.each(this, function(i) { - ctx[i === 0 ? 'moveTo' : 'lineTo'](this[0], this[1]); - }); - ctx.stroke(); - }); - this._changed(); - }, - - /* Determine whether or not any drawing has occurred. - @return (boolean) true if not signed, false if signed */ - isEmpty: function() { - return this.lines.length === 0; - }, - - /* Remove the signature functionality. */ - _destroy: function() { - this.element.removeClass(this.widgetFullName || this.widgetBaseClass); - $(this.canvas).remove(); - this.canvas = this.ctx = this.lines = null; - this._mouseDestroy(); - } -}; - -if (!$.Widget.prototype._destroy) { - $.extend(signatureOverrides, { - /* Remove the signature functionality. */ - destroy: function() { - this._destroy(); - $.Widget.prototype.destroy.call(this); // Base widget handling - } - }); -} - -if($.Widget.prototype._getCreateOptions === $.noop) { - $.extend(signatureOverrides, { - /* Restore the metadata functionality. */ - _getCreateOptions: function() { - return $.metadata && $.metadata.get(this.element[0])[this.widgetName]; - } - }); -} - -/* Signature capture and display. - Depends on jquery.ui.widget, jquery.ui.mouse. */ -$.widget('kbw.signature', $.ui.mouse, signatureOverrides); - -// Make some things more accessible -$.kbw.signature.options = $.kbw.signature.prototype.options; - -})(jQuery); diff --git a/web_widget_digitized_signature/static/src/css/jquery.signature.css b/web_widget_digitized_signature/static/src/css/jquery.signature.css deleted file mode 100644 index 5952cf50..00000000 --- a/web_widget_digitized_signature/static/src/css/jquery.signature.css +++ /dev/null @@ -1,5 +0,0 @@ -/* Styles for signature plugin v1.1.0. */ -.kbw-signature { - display: inline-block; - border: 1px solid #a0a0a0; -} diff --git a/web_widget_digitized_signature/static/src/js/digital_sign.js b/web_widget_digitized_signature/static/src/js/digital_sign.js old mode 100644 new mode 100755 index c3e70aaa..b657cf7f --- a/web_widget_digitized_signature/static/src/js/digital_sign.js +++ b/web_widget_digitized_signature/static/src/js/digital_sign.js @@ -7,6 +7,35 @@ openerp.web_widget_digitized_signature = function(instance) { instance.web.form.widgets.add('signature', 'instance.web.form.FieldSignature'); instance.web.form.FieldSignature = instance.web.form.FieldBinaryImage.extend({ template: 'FieldSignature', + placeholder: "/web/static/src/img/placeholder.png", + initialize_content: function() { + this._super(); + this.$el.find("#signature").empty().jSignature({'decor-color' : '#D1D0CE', 'color': '#000', 'background-color': '#fff'}); + this.$el.find("#signature").attr({"tabindex": "0",'height':"100"}); + this.empty_sign = this.$el.find("#signature").jSignature("getData",'image'); + this.$el.find('#sign_clean').click(this.on_clear_sign); + this.$el.find('.save_sign').click(this.on_save_sign); + }, + on_clear_sign: function() { + if (this.get('value') !== false) { + this.binary_value = false; + this.internal_set_value(false); + } + $(this.$el[0]).find(".signature > canvas").remove() + $(this.$el[0]).find(".signature").attr("tabindex", "0"); + $(this.$el[0]).find(".signature").jSignature(); + $(this.$el[0]).find(".signature").focus() + return false; + }, + on_save_sign: function(value_) { + var self = this; + var val; + var signature = self.$el.find("#signature").jSignature("getData",'image'); + var is_empty = signature ? self.empty_sign[1] == signature[1] : false; + if(! is_empty && signature[1]){ + self.set('value',signature[1]) + } + }, render_value: function() { var self = this; var url; @@ -14,16 +43,6 @@ openerp.web_widget_digitized_signature = function(instance) { url = 'data:image/png;base64,' + this.get('value'); }else if (this.get('value')) { var id = JSON.stringify(this.view.datarecord.id || null); - self.digita_dataset = new instance.web.DataSetSearch(self, self.view.model, {}, []); - self.digita_dataset.read_slice(['id', self.name], {'domain': [['id', '=', id]]}).then(function(records){ - _.each(records,function(record){ - if(record[self.name]){ - images[self.name] = record[self.name] - }else{ - images[self.name] = "" - } - }) - }) var field = this.name; if (this.options.preview_image) field = this.options.preview_image; @@ -33,93 +52,60 @@ openerp.web_widget_digitized_signature = function(instance) { field: field, t: (new Date().getTime()), }); + }else if(! this.get('value')){ + $(this.$el[0]).find(".signature > canvas").remove(); + var sign_options = {'decor-color' : '#D1D0CE', 'color': '#000', 'background-color': '#fff'}; + + if ('width' in self.node.attrs){ + sign_options.width = self.node.attrs.width; + } + if ('height' in self.node.attrs){ + sign_options.height = self.node.attrs.height; + } + this.$el.find("#signature").empty().jSignature(sign_options); + this.$el.find("#signature").attr({"tabindex": "0",'height':"100"}); }else { - images[self.name] = "" url = this.placeholder; - self.set('value',images[self.name]) } - var $img = $(QWeb.render("FieldBinaryImage-img", { widget: this, url: url })); - this.$el.find('img').remove(); - var sign_options = {}; - if ('width' in self.node.attrs){ - sign_options.width = self.node.attrs.width; - } - if ('height' in self.node.attrs){ - sign_options.height = self.node.attrs.height; - } - var actual_mode = this.view.get("actual_mode"); - if(actual_mode !== 'edit' && actual_mode !== 'create'){ + if(this.view.get("actual_mode") == 'view'){ + var $img = $(QWeb.render("FieldBinaryImage-img", { widget: this, url: url })); + this.$el.find('> img').remove(); + this.$el.find("#signature").hide(); this.$el.prepend($img); - }else if(actual_mode == 'edit' || actual_mode == 'create'){ - if( actual_mode == 'create'){ - images = {}; - } + $img.load(function() { + if (! self.options.size) + return; + $img.css("max-width", "" + self.options.size[0] + "px"); + $img.css("max-height", "" + self.options.size[1] + "px"); + $img.css("margin-left", "" + (self.options.size[0] - $img.width()) / 2 + "px"); + $img.css("margin-top", "" + (self.options.size[1] - $img.height()) / 2 + "px"); + }); + $img.on('error', function() { + $img.attr('src', self.placeholder); + instance.webclient.notification.warn(_t("Image"), _t("Could not display the selected image.")); + }); + }else if(this.view.get("actual_mode") == 'edit' || this.view.get("actual_mode") == 'create'){ this.$el.find('> img').remove(); - this.$el.find('> canvas').remove(); - if(! this.get('value')){ - this.$el.find('> img').remove(); - this.$el.find(".signature").signature(sign_options); - }else if(this.get('value')){ - this.$el.prepend($img); - } - } - this.$el.find('.clear_sign').click(function(){ - self.$el.find('> img').remove(); - images[self.name] = "" - self.$el.find(".signature").show(); - self.$el.find(".signature").signature('clear'); - }); - $('.save_sign').click(function(){ - var val - if(self.$el.find(".signature").hasClass( "kbw-signature" ) && ! self.$el.find(".signature").signature('isEmpty')){ - self.$el.find(".signature").hide(); - val = self.$el.find(".signature > canvas")[0].toDataURL(); - images[self.name] = val.split(',')[1] - var $img = $(QWeb.render("FieldBinaryImage-signature", { widget: self, url: val })); - self.$el.find('> img').remove(); - self.$el.prepend($img); - self.set('value',val.split(',')[1]) - var id = JSON.stringify(self.view.datarecord.id || null); - var field = self.name; - url = self.session.url('/web/binary/image', { - model: self.view.dataset.model, - id: id, - field: field, - t: (new Date().getTime()), + if(this.get('value')){ + var id = JSON.stringify(this.view.datarecord.id || null); + var field = this.name; + if (this.options.preview_image) + field = this.options.preview_image; + new instance.web.Model(this.view.dataset.model).call("read", [this.view.datarecord.id, [field]]).done(function(data) { + if(data){ + var field_desc = _.values(_.pick(data, field)); + $(self.$el[0]).find(".signature").jSignature('reset'); + $(self.$el[0]).find(".signature").jSignature("setData", 'data:image/png;base64,'+field_desc[0]); + } }); - }else{ - var id = JSON.stringify(self.view.datarecord.id || null); - var field = self.name; - if (self.options.preview_image) - field = self.options.preview_image; - url = self.session.url('/web/binary/image', { - model: self.view.dataset.model, - id: id, - field: field, - t: (new Date().getTime()), - }); - var $img = $(QWeb.render("FieldBinaryImage-signature", { widget: self, url: url })); - self.$el.find('> img').remove(); } - }); - $img.load(function() { - if (! self.options.size) - return; - $img.css("max-width", "" + self.options.size[0] + "px"); - $img.css("max-height", "" + self.options.size[1] + "px"); - $img.css("margin-left", "" + (self.options.size[0] - $img.width()) / 2 + "px"); - $img.css("margin-top", "" + (self.options.size[1] - $img.height()) / 2 + "px"); - }); - $img.on('error', function() { - $img.attr('src', self.placeholder); - instance.webclient.notification.warn(_t("Image"), _t("Could not display the selected image.")); - }); + } }, }); - instance.web.FormView.include({ - save: function() { - $('.save_sign').click(); - return this._super.apply(this, arguments); - }, - }) + instance.web.FormView.include({ + save: function() { + this.$el.find('.save_sign').click(); + return this._super.apply(this, arguments); + }, + }) } diff --git a/web_widget_digitized_signature/static/src/xml/digital_sign.xml b/web_widget_digitized_signature/static/src/xml/digital_sign.xml old mode 100644 new mode 100755 index 96f0e6da..bb471593 --- a/web_widget_digitized_signature/static/src/xml/digital_sign.xml +++ b/web_widget_digitized_signature/static/src/xml/digital_sign.xml @@ -1,18 +1,23 @@ -
-

- - +
+
+
+ Clear + +
+ Draw your signature +
+
- - + + diff --git a/web_widget_digitized_signature/views/we_digital_sign_view.xml b/web_widget_digitized_signature/views/we_digital_sign_view.xml index 79254574..aef0163e 100644 --- a/web_widget_digitized_signature/views/we_digital_sign_view.xml +++ b/web_widget_digitized_signature/views/we_digital_sign_view.xml @@ -3,9 +3,7 @@