/* JPEGCam v1.0.9 */ /* Webcam library for capturing JPEG images and submitting to a server */ /* Copyright (c) 2008 - 2009 Joseph Huckaby */ /* Licensed under the GNU Lesser Public License */ /* http://www.gnu.org/licenses/lgpl.html */ /** * * SWFObject v2.2 * is released under the MIT License */ /* ******************* */ /* Constructor & Init */ /* ******************* */ var icwebcam; var swfobject; if (icwebcam == undefined) { icwebcam = function (settings) { this.init_icwebcam(settings); }; } icwebcam.prototype.init_icwebcam = function (userSettings) { try { this.customSettings = {}; // A container where developers can place their own settings associated with this instance. this.settings = {}; this.eventQueue = []; this.movieName = "webcam_movie"; // "icwebcam_" + icwebcam.movieCount++; this.movieElement = null; this.ie = !!navigator.userAgent.match(/MSIE/); this.callback = null; // user callback for completed uploads this.hooks = { onLoad: null, onComplete: null, onError: null }; // Setup global control tracking icwebcam.instances[this.movieName] = this; // Load the settings. Load the Flash movie. this.initSettings(userSettings); this.loadSupport(); if (this.swfuploadPreload()) { this.loadFlash(); } } catch (ex) { delete icwebcam.instances[this.movieName]; throw ex; } }; /* *************** */ /* Static Members */ /* *************** */ icwebcam.instances = {}; icwebcam.movieCount = 0; icwebcam.version = "1.0.9"; icwebcam.QUEUE_ERROR = { QUEUE_LIMIT_EXCEEDED : -100, FILE_EXCEEDS_SIZE_LIMIT : -110, ZERO_BYTE_FILE : -120, INVALID_FILETYPE : -130 }; icwebcam.UPLOAD_ERROR = { HTTP_ERROR : -200, MISSING_UPLOAD_URL : -210, IO_ERROR : -220, SECURITY_ERROR : -230, UPLOAD_LIMIT_EXCEEDED : -240, UPLOAD_FAILED : -250, SPECIFIED_FILE_ID_NOT_FOUND : -260, FILE_VALIDATION_FAILED : -270, FILE_CANCELLED : -280, UPLOAD_STOPPED : -290, RESIZE : -300 }; icwebcam.FILE_STATUS = { QUEUED : -1, IN_PROGRESS : -2, ERROR : -3, COMPLETE : -4, CANCELLED : -5 }; icwebcam.UPLOAD_TYPE = { NORMAL : -1, RESIZED : -2 }; icwebcam.BUTTON_ACTION = { SELECT_FILE : -100, SELECT_FILES : -110, START_UPLOAD : -120, NONE : -130 }; icwebcam.RESIZE_ENCODING = { JPEG : -1, PNG : -2 }; // Private: takes a URL, determines if it is relative and converts to an absolute URL // using the current site. Only processes the URL if it can, otherwise returns the URL untouched icwebcam.completeURL = function (url) { try { var path = "", indexSlash = -1; if (typeof(url) !== "string" || url.match(/^https?:\/\//i) || url.match(/^\//) || url === "") { return url; } indexSlash = window.location.pathname.lastIndexOf("/"); if (indexSlash <= 0) { path = "/"; } else { path = window.location.pathname.substr(0, indexSlash) + "/"; } return path + url; } catch (ex) { return url; } }; // Public: assign a new function to onload to use swfobject's domLoad functionality icwebcam.onload = function () {}; /* ******************** */ /* Instance Members */ /* ******************** */ // Private: initSettings ensures that all the // settings are set, getting a default value if one was not assigned. icwebcam.prototype.initSettings = function (userSettings) { this.ensureDefault = function (settingName, defaultValue) { var setting = userSettings[settingName]; if (setting != undefined) { this.settings[settingName] = setting; } else { this.settings[settingName] = defaultValue; } }; // Upload backend settings this.ensureDefault("api_url", "/ic/photobook/uploadjpg.jsp"); this.ensureDefault("requeue_on_error", false); this.ensureDefault("http_success", []); this.ensureDefault("assume_success_timeout", 0); // Flash Settings this.ensureDefault("swf_url", "/ic/images/icwebcam.swf"); this.ensureDefault("prevent_swf_caching", true); this.ensureDefault("quality", 100); this.ensureDefault("shutter_url", "/ic/images/shutter.mp3"); this.ensureDefault("shutter_sound", false); this.ensureDefault("stealth", false); this.ensureDefault("protocol", location.protocol.match(/https/i) ? 'https' : 'http'); // Event Handlers this.settings.return_upload_start_handler = this.returnUploadStart; this.ensureDefault("swfupload_preload_handler", null); this.ensureDefault("swfupload_load_failed_handler", null); this.ensureDefault("swfupload_loaded_handler", null); this.ensureDefault("webcam_placeholder_id", ""); this.ensureDefault("webcam_placeholder", null); this.ensureDefault("width", 320); this.ensureDefault("height", 240); this.ensureDefault("custom_settings", {}); // Other settings this.customSettings = this.settings.custom_settings; // Update the flash url if needed if (!!this.settings.prevent_swf_caching) { this.settings.swf_url = this.settings.swf_url + (this.settings.swf_url.indexOf("?") < 0 ? "?" : "&") + "preventswfcaching=" + new Date().getTime(); } if (!this.settings.preserve_relative_urls) { this.settings.upload_url = icwebcam.completeURL(this.settings.upload_url); this.settings.button_image_url = icwebcam.completeURL(this.settings.button_image_url); } delete this.ensureDefault; }; // Initializes the supported functionality based the Flash Player version, state, and event that occur during initialization icwebcam.prototype.loadSupport = function () { this.support = { loading : swfobject.hasFlashPlayerVersion("9.0.28") }; }; // Private: loadFlash replaces the button_placeholder element with the flash movie. icwebcam.prototype.loadFlash = function () { var targetElement, tempParent, wrapperType, flashHTML, els; if (!this.support.loading) { this.queueEvent("swfupload_load_failed_handler", ["Flash Player doesn't support icwebcam"]); return; } // Make sure an element with the ID we are going to use doesn't already exist if (document.getElementById(this.movieName) !== null) { this.support.loading = false; this.queueEvent("swfupload_load_failed_handler", ["Element ID already in use"]); return; } // Get the element where we will be placing the flash movie targetElement = document.getElementById(this.settings.webcam_placeholder_id) || this.settings.webcam_placeholder; if (targetElement == undefined) { this.support.loading = false; this.queueEvent("swfupload_load_failed_handler", ["button place holder not found"]); return; } wrapperType = (targetElement.currentStyle && targetElement.currentStyle["display"] || window.getComputedStyle && document.defaultView.getComputedStyle(targetElement, null).getPropertyValue("display")) !== "block" ? "span" : "div"; // Append the container and load the flash tempParent = document.createElement(wrapperType); // flashHTML = this.getFlashHTML(); flashHTML = this.get_html(this.settings.width,this.settings.height,this.settings.width,this.settings.height); try { tempParent.innerHTML = flashHTML; // Using innerHTML is non-standard but the only sensible way to dynamically add Flash in IE (and maybe other browsers) } catch (ex) { this.support.loading = false; this.queueEvent("swfupload_load_failed_handler", ["Exception loading Flash HTML into placeholder"]); return; } // Try to get the movie element immediately if (this.ie) { els = tempParent.getElementsByTagName("object"); } else { els = tempParent.getElementsByTagName("embed"); } if (!els || els.length > 1 || els.length === 0) { this.support.loading = false; this.queueEvent("swfupload_load_failed_handler", ["Unable to find movie after adding to DOM"]); return; } else if (els.length === 1) { this.movieElement = els[0]; } targetElement.parentNode.replaceChild(tempParent.firstChild, targetElement); // Fix IE Flash/Form bug if (window[this.movieName] == undefined) { window[this.movieName] = this.get_movie(); } }; icwebcam.prototype.get_html = function(width, height, server_width, server_height) { // Return HTML for embedding webcam capture movie // Specify pixel width and height (640x480, 320x240, etc.) // Server width and height are optional, and default to movie width/height if (!server_width) server_width = width; if (!server_height) server_height = height; var html = ''; var flashvars = 'shutter_enabled=' + (this.settings.shutter_sound ? 1 : 0) + '&shutter_url=' + escape(this.settings.shutter_url) + '&width=' + width + '&height=' + height + '&server_width=' + server_width + '&server_height=' + server_height; if (this.ie) { html += ''; } else { html += ''; } return html; } // Private: getFlashHTML generates the object tag needed to embed the flash in to the document icwebcam.prototype.getFlashHTML = function (flashVersion) { // Flash Satay object syntax: http://www.alistapart.com/articles/flashsatay return ['', '', '', '', '', '', ''].join(""); }; // Private: getFlashVars builds the parameter string that will be passed // to flash in the flashvars param. icwebcam.prototype.getFlashVars = function () { // Build a string from the post param object var httpSuccessString, paramString; paramString = this.buildParamString(); httpSuccessString = this.settings.http_success.join(","); // Build the parameter string return ["shutter_enabled=", (this.shutter_sound ? 1 : 0), "&shutter_url=", encodeURIComponent(this.settings.shutter_url), "&width=", this.width, "&height=", this.height, "&server_width=", this.server_width, "&server_height=", this.server_height ].join(""); }; // Public: get retrieves the DOM reference to the Flash element added by icwebcam // The element is cached after the first lookup icwebcam.prototype.get_movie = function () { if (this.movieElement == undefined) { this.movieElement = document.getElementById(this.movieName); } if (this.movieElement === null) { throw "Could not find Flash element"; } return this.movieElement; }; // Public: Used to remove a icwebcam instance from the page. This method strives to remove // all references to the SWF, and other objects so memory is properly freed. // Returns true if everything was destroyed. Returns a false if a failure occurs leaving icwebcam in an inconsistant state. // Credits: Major improvements provided by steffen icwebcam.prototype.destroy = function () { var movieElement; try { // Make sure Flash is done before we try to remove it this.cancelUpload(null, false); movieElement = this.cleanUp(); // Remove the icwebcam DOM nodes if (movieElement) { // Remove the Movie Element from the page try { movieElement.parentNode.removeChild(movieElement); } catch (ex) {} } // Remove IE form fix reference window[this.movieName] = null; // Destroy other references icwebcam.instances[this.movieName] = null; delete icwebcam.instances[this.movieName]; this.movieElement = null; this.settings = null; this.customSettings = null; this.eventQueue = null; this.movieName = null; return true; } catch (ex2) { return false; } }; // Private: callFlash handles function calls made to the Flash element. // Calls are made with a setTimeout for some functions to work around // bugs in the ExternalInterface library. icwebcam.prototype.flash_notify = function(type, msg) { // receive notification from flash about event switch (type) { case 'flashLoadComplete': // movie loaded successfully this.loaded = true; this.fire_hook('onLoad'); break; case 'error': // HTTP POST error most likely if (!this.fire_hook('onError', msg)) { alert("JPEGCam Flash Error: " + msg); } break; case 'success': // upload complete, execute user callback function // and pass raw API script results to function this.fire_hook('onComplete', msg.toString()); break; default: // catch-all, just in case alert("jpegcam flash_notify: " + type + ": " + msg); break; } } icwebcam.prototype.callFlash = function (functionName, argumentArray) { var movieElement, returnValue, returnString; argumentArray = argumentArray || []; movieElement = this.get_movie(); // Flash's method if calling ExternalInterface methods (code adapted from MooTools). try { if (movieElement != undefined) { returnString = movieElement.CallFunction('' + __flash__argumentsToXML(argumentArray, 0) + ''); returnValue = eval(returnString); } else { this.debug("Can't call flash because the movie wasn't found."); } } catch (ex) { this.debug("Exception calling flash function '" + functionName + "': " + ex.message); } // Unescape file post param values if (returnValue != undefined && typeof returnValue.post === "object") { returnValue = this.unescapeFilePostParams(returnValue); } return returnValue; }; icwebcam.prototype.set_hook = function(name, callback) { // set callback hook // supported hooks: onLoad, onComplete, onError if (typeof(this.hooks[name]) == 'undefined') return alert("Hook type not supported: " + name); this.hooks[name] = callback; } icwebcam.prototype.fire_hook = function(name, value) { // fire hook callback, passing optional value to it if (this.hooks[name]) { if (typeof(this.hooks[name]) == 'function') { // callback is function reference, call directly this.hooks[name](value); } else if (typeof(this.hooks[name]) == 'array') { // callback is PHP-style object instance method this.hooks[name][0][this.hooks[name][1]](value); } else if (window[this.hooks[name]]) { // callback is global function name window[ this.hooks[name] ](value); } return true; } return false; // no hook defined } /* ***************************** -- Flash control methods -- Your UI should use these to operate icwebcam ***************************** */ icwebcam.prototype.snap = function(url, callback, stealth) { // take snapshot and send to server // specify fully-qualified URL to server API script // and callback function (string or function object) // if (callback) this.set_hook('onComplete', callback); // if (url) this.set_api_url(url); // if (typeof(stealth) != 'undefined') this.set_stealth( stealth ); this.get_movie()._snap( this.settings.api_url, this.settings.quality, this.settings.shutter_sound ? 1 : 0, this.settings.stealth ? 1 : 0 ); } icwebcam.prototype.freeze = function() { // freeze webcam image (capture but do not upload) this.get_movie()._snap('', this.settings.quality, this.settings.shutter_sound ? 1 : 0, 0 ); } icwebcam.prototype.upload = function(url, callback) { // upload image to server after taking snapshot // specify fully-qualified URL to server API script // and callback function (string or function object) // if (callback) this.set_hook('onComplete', callback); // if (url) this.set_api_url(url); this.get_movie()._upload( this.settings.api_url ); } icwebcam.prototype.reset = function() { // reset movie after taking snapshot this.get_movie()._reset(); } icwebcam.prototype.configure = function(panel) { // open flash configuration panel -- specify tab name: // "camera", "privacy", "default", "localStorage", "microphone", "settingsManager" if (!panel) panel = "camera"; this.get_movie()._configure(panel); } /* ******************************* Flash Event Interfaces These functions are used by Flash to trigger the various events. All these functions a Private. Because the ExternalInterface library is buggy the event calls are added to a queue and the queue then executed by a setTimeout. This ensures that events are executed in a determinate order and that the ExternalInterface bugs are avoided. ******************************* */ icwebcam.prototype.queueEvent = function (handlerName, argumentArray) { // Warning: Don't call this.debug inside here or you'll create an infinite loop var self = this; if (argumentArray == undefined) { argumentArray = []; } else if (!(argumentArray instanceof Array)) { argumentArray = [argumentArray]; } if (typeof this.settings[handlerName] === "function") { // Queue the event this.eventQueue.push(function () { this.settings[handlerName].apply(this, argumentArray); }); // Execute the next queued event setTimeout(function () { self.executeNextEvent(); }, 0); } else if (this.settings[handlerName] !== null) { throw "Event handler " + handlerName + " is unknown or is not a function"; } }; // Private: Causes the next event in the queue to be executed. Since events are queued using a setTimeout // we must queue them in order to garentee that they are executed in order. icwebcam.prototype.executeNextEvent = function () { // Warning: Don't call this.debug inside here or you'll create an infinite loop var f = this.eventQueue ? this.eventQueue.shift() : null; if (typeof(f) === "function") { f.apply(this); } }; // Private: unescapeFileParams is part of a workaround for a flash bug where objects passed through ExternalInterface cannot have // properties that contain characters that are not valid for JavaScript identifiers. To work around this // the Flash Component escapes the parameter names and we must unescape again before passing them along. icwebcam.prototype.unescapeFilePostParams = function (file) { var reg = /[$]([0-9a-f]{4})/i, unescapedPost = {}, uk, k, match; if (file != undefined) { for (k in file.post) { if (file.post.hasOwnProperty(k)) { uk = k; while ((match = reg.exec(uk)) !== null) { uk = uk.replace(match[0], String.fromCharCode(parseInt("0x" + match[1], 16))); } unescapedPost[uk] = file.post[k]; } } file.post = unescapedPost; } return file; }; // Private: This event is called by icwebcam Init after we've determined what the user's Flash Player supports. // Use the swfupload_preload_handler event setting to execute custom code when icwebcam has loaded. // Return false to prevent icwebcam from loading and allow your script to do something else if your required feature is // not supported icwebcam.prototype.swfuploadPreload = function () { var returnValue; if (typeof this.settings.swfupload_preload_handler === "function") { returnValue = this.settings.swfupload_preload_handler.call(this); } else if (this.settings.swfupload_preload_handler != undefined) { throw "upload_start_handler must be a function"; } // Convert undefined to true so if nothing is returned from the upload_start_handler it is // interpretted as 'true'. if (returnValue === undefined) { returnValue = true; } return !!returnValue; } // Private: This event is called by Flash when it has finished loading. Don't modify this. // Use the swfupload_loaded_handler event setting to execute custom code when icwebcam has loaded. icwebcam.prototype.flashReady = function () { // Check that the movie element is loaded correctly with its ExternalInterface methods defined var movieElement = this.cleanUp(); if (!movieElement) { this.debug("Flash called back ready but the flash movie can't be found."); return; } this.queueEvent("swfupload_loaded_handler"); }; // Private: removes Flash added fuctions to the DOM node to prevent memory leaks in IE. // This function is called by Flash each time the ExternalInterface functions are created. icwebcam.prototype.cleanUp = function () { var key, movieElement = this.get_movie(); // Pro-actively unhook all the Flash functions try { if (movieElement && typeof(movieElement.CallFunction) === "unknown") { // We only want to do this in IE this.debug("Removing Flash functions hooks (this should only run in IE and should prevent memory leaks)"); for (key in movieElement) { try { if (typeof(movieElement[key]) === "function") { movieElement[key] = null; } } catch (ex) { } } } } catch (ex1) { } // Fix Flashes own cleanup code so if the SWF Movie was removed from the page // it doesn't display errors. window["__flash__removeCallback"] = function (instance, name) { try { if (instance) { instance[name] = null; } } catch (flashEx) { } }; return movieElement; }; icwebcam.prototype.uploadComplete = function (file) { file = this.unescapeFilePostParams(file); this.queueEvent("upload_complete_handler", file); }; /* SWFObject v2.2 is released under the MIT License */ swfobject = function(){var D="undefined",r="object",S="Shockwave Flash",W="ShockwaveFlash.ShockwaveFlash",q="application/x-shockwave-flash",R="SWFObjectExprInst",x="onreadystatechange",O=window,j=document,t=navigator,T=false,U=[h],o=[],N=[],I=[],l,Q,E,B,J=false,a=false,n,G,m=true,M=function(){var aa=typeof j.getElementById!=D&&typeof j.getElementsByTagName!=D&&typeof 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