diff options
Diffstat (limited to 'ecomp-sdk/sdk-app/src/main/webapp/static/fusion/raptor/dy3/js/dygraph-utils.js')
-rw-r--r-- | ecomp-sdk/sdk-app/src/main/webapp/static/fusion/raptor/dy3/js/dygraph-utils.js | 1305 |
1 files changed, 0 insertions, 1305 deletions
diff --git a/ecomp-sdk/sdk-app/src/main/webapp/static/fusion/raptor/dy3/js/dygraph-utils.js b/ecomp-sdk/sdk-app/src/main/webapp/static/fusion/raptor/dy3/js/dygraph-utils.js deleted file mode 100644 index 1ec1795d..00000000 --- a/ecomp-sdk/sdk-app/src/main/webapp/static/fusion/raptor/dy3/js/dygraph-utils.js +++ /dev/null @@ -1,1305 +0,0 @@ -/** - * @license - * Copyright 2011 Dan Vanderkam (danvdk@gmail.com) - * MIT-licensed (http://opensource.org/licenses/MIT) - */ - -/** - * @fileoverview This file contains utility functions used by dygraphs. These - * are typically static (i.e. not related to any particular dygraph). Examples - * include date/time formatting functions, basic algorithms (e.g. binary - * search) and generic DOM-manipulation functions. - */ - -/*jshint globalstrict: true */ -/*global Dygraph:false, G_vmlCanvasManager:false, Node:false, printStackTrace: false */ -"use strict"; - -Dygraph.LOG_SCALE = 10; -Dygraph.LN_TEN = Math.log(Dygraph.LOG_SCALE); - -/** - * @private - * @param {number} x - * @return {number} - */ -Dygraph.log10 = function(x) { - return Math.log(x) / Dygraph.LN_TEN; -}; - -// Various logging levels. -Dygraph.DEBUG = 1; -Dygraph.INFO = 2; -Dygraph.WARNING = 3; -Dygraph.ERROR = 3; - -// Set this to log stack traces on warnings, etc. -// This requires stacktrace.js, which is up to you to provide. -// A copy can be found in the dygraphs repo, or at -// https://github.com/eriwen/javascript-stacktrace -Dygraph.LOG_STACK_TRACES = false; - -/** A dotted line stroke pattern. */ -Dygraph.DOTTED_LINE = [2, 2]; -/** A dashed line stroke pattern. */ -Dygraph.DASHED_LINE = [7, 3]; -/** A dot dash stroke pattern. */ -Dygraph.DOT_DASH_LINE = [7, 2, 2, 2]; - -/** - * Log an error on the JS console at the given severity. - * @param {number} severity One of Dygraph.{DEBUG,INFO,WARNING,ERROR} - * @param {string} message The message to log. - * @private - */ -Dygraph.log = function(severity, message) { - var st; - if (typeof(printStackTrace) != 'undefined') { - try { - // Remove uninteresting bits: logging functions and paths. - st = printStackTrace({guess:false}); - while (st[0].indexOf("stacktrace") != -1) { - st.splice(0, 1); - } - - st.splice(0, 2); - for (var i = 0; i < st.length; i++) { - st[i] = st[i].replace(/\([^)]*\/(.*)\)/, '@$1') - .replace(/\@.*\/([^\/]*)/, '@$1') - .replace('[object Object].', ''); - } - var top_msg = st.splice(0, 1)[0]; - message += ' (' + top_msg.replace(/^.*@ ?/, '') + ')'; - } catch(e) { - // Oh well, it was worth a shot! - } - } - - if (typeof(window.console) != 'undefined') { - // In older versions of Firefox, only console.log is defined. - var console = window.console; - var log = function(console, method, msg) { - if (method && typeof(method) == 'function') { - method.call(console, msg); - } else { - console.log(msg); - } - }; - - switch (severity) { - case Dygraph.DEBUG: - log(console, console.debug, 'dygraphs: ' + message); - break; - case Dygraph.INFO: - log(console, console.info, 'dygraphs: ' + message); - break; - case Dygraph.WARNING: - log(console, console.warn, 'dygraphs: ' + message); - break; - case Dygraph.ERROR: - log(console, console.error, 'dygraphs: ' + message); - break; - } - } - - if (Dygraph.LOG_STACK_TRACES) { - window.console.log(st.join('\n')); - } -}; - -/** - * @param {string} message - * @private - */ -Dygraph.info = function(message) { - Dygraph.log(Dygraph.INFO, message); -}; -/** - * @param {string} message - * @private - */ -Dygraph.prototype.info = Dygraph.info; - -/** - * @param {string} message - * @private - */ -Dygraph.warn = function(message) { - Dygraph.log(Dygraph.WARNING, message); -}; -/** - * @param {string} message - * @private - */ -Dygraph.prototype.warn = Dygraph.warn; - -/** - * @param {string} message - */ -Dygraph.error = function(message) { - Dygraph.log(Dygraph.ERROR, message); -}; -/** - * @param {string} message - * @private - */ -Dygraph.prototype.error = Dygraph.error; - -/** - * Return the 2d context for a dygraph canvas. - * - * This method is only exposed for the sake of replacing the function in - * automated tests, e.g. - * - * var oldFunc = Dygraph.getContext(); - * Dygraph.getContext = function(canvas) { - * var realContext = oldFunc(canvas); - * return new Proxy(realContext); - * }; - * @param {!HTMLCanvasElement} canvas - * @return {!CanvasRenderingContext2D} - * @private - */ -Dygraph.getContext = function(canvas) { - return /** @type{!CanvasRenderingContext2D}*/(canvas.getContext("2d")); -}; - -/** - * Add an event handler. This smooths a difference between IE and the rest of - * the world. - * @param { !Element } elem The element to add the event to. - * @param { string } type The type of the event, e.g. 'click' or 'mousemove'. - * @param { function(Event):(boolean|undefined) } fn The function to call - * on the event. The function takes one parameter: the event object. - * @private - */ -Dygraph.addEvent = function addEvent(elem, type, fn) { - if (elem.addEventListener) { - elem.addEventListener(type, fn, false); - } else { - elem[type+fn] = function(){fn(window.event);}; - elem.attachEvent('on'+type, elem[type+fn]); - } -}; - -/** - * Add an event handler. This event handler is kept until the graph is - * destroyed with a call to graph.destroy(). - * - * @param { !Element } elem The element to add the event to. - * @param { string } type The type of the event, e.g. 'click' or 'mousemove'. - * @param { function(Event):(boolean|undefined) } fn The function to call - * on the event. The function takes one parameter: the event object. - * @private - */ -Dygraph.prototype.addAndTrackEvent = function(elem, type, fn) { - Dygraph.addEvent(elem, type, fn); - this.registeredEvents_.push({ elem : elem, type : type, fn : fn }); -}; - -/** - * Remove an event handler. This smooths a difference between IE and the rest - * of the world. - * @param {!Element} elem The element to add the event to. - * @param {string} type The type of the event, e.g. 'click' or 'mousemove'. - * @param {function(Event):(boolean|undefined)} fn The function to call - * on the event. The function takes one parameter: the event object. - * @private - */ -Dygraph.removeEvent = function(elem, type, fn) { - if (elem.removeEventListener) { - elem.removeEventListener(type, fn, false); - } else { - try { - elem.detachEvent('on'+type, elem[type+fn]); - } catch(e) { - // We only detach event listeners on a "best effort" basis in IE. See: - // http://stackoverflow.com/questions/2553632/detachevent-not-working-with-named-inline-functions - } - elem[type+fn] = null; - } -}; - -Dygraph.prototype.removeTrackedEvents_ = function() { - if (this.registeredEvents_) { - for (var idx = 0; idx < this.registeredEvents_.length; idx++) { - var reg = this.registeredEvents_[idx]; - Dygraph.removeEvent(reg.elem, reg.type, reg.fn); - } - } - - this.registeredEvents_ = []; -}; - -/** - * Cancels further processing of an event. This is useful to prevent default - * browser actions, e.g. highlighting text on a double-click. - * Based on the article at - * http://www.switchonthecode.com/tutorials/javascript-tutorial-the-scroll-wheel - * @param { !Event } e The event whose normal behavior should be canceled. - * @private - */ -Dygraph.cancelEvent = function(e) { - e = e ? e : window.event; - if (e.stopPropagation) { - e.stopPropagation(); - } - if (e.preventDefault) { - e.preventDefault(); - } - e.cancelBubble = true; - e.cancel = true; - e.returnValue = false; - return false; -}; - -/** - * Convert hsv values to an rgb(r,g,b) string. Taken from MochiKit.Color. This - * is used to generate default series colors which are evenly spaced on the - * color wheel. - * @param { number } hue Range is 0.0-1.0. - * @param { number } saturation Range is 0.0-1.0. - * @param { number } value Range is 0.0-1.0. - * @return { string } "rgb(r,g,b)" where r, g and b range from 0-255. - * @private - */ -Dygraph.hsvToRGB = function (hue, saturation, value) { - var red; - var green; - var blue; - if (saturation === 0) { - red = value; - green = value; - blue = value; - } else { - var i = Math.floor(hue * 6); - var f = (hue * 6) - i; - var p = value * (1 - saturation); - var q = value * (1 - (saturation * f)); - var t = value * (1 - (saturation * (1 - f))); - switch (i) { - case 1: red = q; green = value; blue = p; break; - case 2: red = p; green = value; blue = t; break; - case 3: red = p; green = q; blue = value; break; - case 4: red = t; green = p; blue = value; break; - case 5: red = value; green = p; blue = q; break; - case 6: // fall through - case 0: red = value; green = t; blue = p; break; - } - } - red = Math.floor(255 * red + 0.5); - green = Math.floor(255 * green + 0.5); - blue = Math.floor(255 * blue + 0.5); - return 'rgb(' + red + ',' + green + ',' + blue + ')'; -}; - -// The following functions are from quirksmode.org with a modification for Safari from -// http://blog.firetree.net/2005/07/04/javascript-find-position/ -// http://www.quirksmode.org/js/findpos.html -// ... and modifications to support scrolling divs. - -/** - * Find the x-coordinate of the supplied object relative to the left side - * of the page. - * TODO(danvk): change obj type from Node -> !Node - * @param {Node} obj - * @return {number} - * @private - */ -Dygraph.findPosX = function(obj) { - var curleft = 0; - if(obj.offsetParent) { - var copyObj = obj; - while(1) { - // NOTE: the if statement here is for IE8. - var borderLeft = "0"; - if (window.getComputedStyle) { - borderLeft = window.getComputedStyle(copyObj, null).borderLeft || "0"; - } - curleft += parseInt(borderLeft, 10) ; - curleft += copyObj.offsetLeft; - if(!copyObj.offsetParent) { - break; - } - copyObj = copyObj.offsetParent; - } - } else if(obj.x) { - curleft += obj.x; - } - // This handles the case where the object is inside a scrolled div. - while(obj && obj != document.body) { - curleft -= obj.scrollLeft; - obj = obj.parentNode; - } - return curleft; -}; - -/** - * Find the y-coordinate of the supplied object relative to the top of the - * page. - * TODO(danvk): change obj type from Node -> !Node - * TODO(danvk): consolidate with findPosX and return an {x, y} object. - * @param {Node} obj - * @return {number} - * @private - */ -Dygraph.findPosY = function(obj) { - var curtop = 0; - if(obj.offsetParent) { - var copyObj = obj; - while(1) { - // NOTE: the if statement here is for IE8. - var borderTop = "0"; - if (window.getComputedStyle) { - borderTop = window.getComputedStyle(copyObj, null).borderTop || "0"; - } - curtop += parseInt(borderTop, 10) ; - curtop += copyObj.offsetTop; - if(!copyObj.offsetParent) { - break; - } - copyObj = copyObj.offsetParent; - } - } else if(obj.y) { - curtop += obj.y; - } - // This handles the case where the object is inside a scrolled div. - while(obj && obj != document.body) { - curtop -= obj.scrollTop; - obj = obj.parentNode; - } - return curtop; -}; - -/** - * Returns the x-coordinate of the event in a coordinate system where the - * top-left corner of the page (not the window) is (0,0). - * Taken from MochiKit.Signal - * @param {!Event} e - * @return {number} - * @private - */ -Dygraph.pageX = function(e) { - if (e.pageX) { - return (!e.pageX || e.pageX < 0) ? 0 : e.pageX; - } else { - var de = document.documentElement; - var b = document.body; - return e.clientX + - (de.scrollLeft || b.scrollLeft) - - (de.clientLeft || 0); - } -}; - -/** - * Returns the y-coordinate of the event in a coordinate system where the - * top-left corner of the page (not the window) is (0,0). - * Taken from MochiKit.Signal - * @param {!Event} e - * @return {number} - * @private - */ -Dygraph.pageY = function(e) { - if (e.pageY) { - return (!e.pageY || e.pageY < 0) ? 0 : e.pageY; - } else { - var de = document.documentElement; - var b = document.body; - return e.clientY + - (de.scrollTop || b.scrollTop) - - (de.clientTop || 0); - } -}; - -/** - * This returns true unless the parameter is 0, null, undefined or NaN. - * TODO(danvk): rename this function to something like 'isNonZeroNan'. - * - * @param {number} x The number to consider. - * @return {boolean} Whether the number is zero or NaN. - * @private - */ -Dygraph.isOK = function(x) { - return !!x && !isNaN(x); -}; - -/** - * @param { {x:?number,y:?number,yval:?number} } p The point to consider, valid - * points are {x, y} objects - * @param { boolean } allowNaNY Treat point with y=NaN as valid - * @return { boolean } Whether the point has numeric x and y. - * @private - */ -Dygraph.isValidPoint = function(p, allowNaNY) { - if (!p) return false; // null or undefined object - if (p.yval === null) return false; // missing point - if (p.x === null || p.x === undefined) return false; - if (p.y === null || p.y === undefined) return false; - if (isNaN(p.x) || (!allowNaNY && isNaN(p.y))) return false; - return true; -}; - -/** - * Number formatting function which mimicks the behavior of %g in printf, i.e. - * either exponential or fixed format (without trailing 0s) is used depending on - * the length of the generated string. The advantage of this format is that - * there is a predictable upper bound on the resulting string length, - * significant figures are not dropped, and normal numbers are not displayed in - * exponential notation. - * - * NOTE: JavaScript's native toPrecision() is NOT a drop-in replacement for %g. - * It creates strings which are too long for absolute values between 10^-4 and - * 10^-6, e.g. '0.00001' instead of '1e-5'. See tests/number-format.html for - * output examples. - * - * @param {number} x The number to format - * @param {number=} opt_precision The precision to use, default 2. - * @return {string} A string formatted like %g in printf. The max generated - * string length should be precision + 6 (e.g 1.123e+300). - */ -Dygraph.floatFormat = function(x, opt_precision) { - // Avoid invalid precision values; [1, 21] is the valid range. - var p = Math.min(Math.max(1, opt_precision || 2), 21); - - // This is deceptively simple. The actual algorithm comes from: - // - // Max allowed length = p + 4 - // where 4 comes from 'e+n' and '.'. - // - // Length of fixed format = 2 + y + p - // where 2 comes from '0.' and y = # of leading zeroes. - // - // Equating the two and solving for y yields y = 2, or 0.00xxxx which is - // 1.0e-3. - // - // Since the behavior of toPrecision() is identical for larger numbers, we - // don't have to worry about the other bound. - // - // Finally, the argument for toExponential() is the number of trailing digits, - // so we take off 1 for the value before the '.'. - return (Math.abs(x) < 1.0e-3 && x !== 0.0) ? - x.toExponential(p - 1) : x.toPrecision(p); -}; - -/** - * Converts '9' to '09' (useful for dates) - * @param {number} x - * @return {string} - * @private - */ -Dygraph.zeropad = function(x) { - if (x < 10) return "0" + x; else return "" + x; -}; - -/** - * Return a string version of the hours, minutes and seconds portion of a date. - * - * @param {number} date The JavaScript date (ms since epoch) - * @return {string} A time of the form "HH:MM:SS" - * @private - */ -Dygraph.hmsString_ = function(date) { - var zeropad = Dygraph.zeropad; - var d = new Date(date); - if (d.getSeconds()) { - return zeropad(d.getHours()) + ":" + - zeropad(d.getMinutes()) + ":" + - zeropad(d.getSeconds()); - } else { - return zeropad(d.getHours()) + ":" + zeropad(d.getMinutes()); - } -}; - -/** - * Round a number to the specified number of digits past the decimal point. - * @param {number} num The number to round - * @param {number} places The number of decimals to which to round - * @return {number} The rounded number - * @private - */ -Dygraph.round_ = function(num, places) { - var shift = Math.pow(10, places); - return Math.round(num * shift)/shift; -}; - -/** - * Implementation of binary search over an array. - * Currently does not work when val is outside the range of arry's values. - * @param {number} val the value to search for - * @param {Array.<number>} arry is the value over which to search - * @param {number} abs If abs > 0, find the lowest entry greater than val - * If abs < 0, find the highest entry less than val. - * If abs == 0, find the entry that equals val. - * @param {number=} low The first index in arry to consider (optional) - * @param {number=} high The last index in arry to consider (optional) - * @return {number} Index of the element, or -1 if it isn't found. - * @private - */ -Dygraph.binarySearch = function(val, arry, abs, low, high) { - if (low === null || low === undefined || - high === null || high === undefined) { - low = 0; - high = arry.length - 1; - } - if (low > high) { - return -1; - } - if (abs === null || abs === undefined) { - abs = 0; - } - var validIndex = function(idx) { - return idx >= 0 && idx < arry.length; - }; - var mid = parseInt((low + high) / 2, 10); - var element = arry[mid]; - var idx; - if (element == val) { - return mid; - } else if (element > val) { - if (abs > 0) { - // Accept if element > val, but also if prior element < val. - idx = mid - 1; - if (validIndex(idx) && arry[idx] < val) { - return mid; - } - } - return Dygraph.binarySearch(val, arry, abs, low, mid - 1); - } else if (element < val) { - if (abs < 0) { - // Accept if element < val, but also if prior element > val. - idx = mid + 1; - if (validIndex(idx) && arry[idx] > val) { - return mid; - } - } - return Dygraph.binarySearch(val, arry, abs, mid + 1, high); - } - return -1; // can't actually happen, but makes closure compiler happy -}; - -/** - * Parses a date, returning the number of milliseconds since epoch. This can be - * passed in as an xValueParser in the Dygraph constructor. - * TODO(danvk): enumerate formats that this understands. - * - * @param {string} dateStr A date in a variety of possible string formats. - * @return {number} Milliseconds since epoch. - * @private - */ -Dygraph.dateParser = function(dateStr) { - var dateStrSlashed; - var d; - - // Let the system try the format first, with one caveat: - // YYYY-MM-DD[ HH:MM:SS] is interpreted as UTC by a variety of browsers. - // dygraphs displays dates in local time, so this will result in surprising - // inconsistencies. But if you specify "T" or "Z" (i.e. YYYY-MM-DDTHH:MM:SS), - // then you probably know what you're doing, so we'll let you go ahead. - // Issue: http://code.google.com/p/dygraphs/issues/detail?id=255 - if (dateStr.search("-") == -1 || - dateStr.search("T") != -1 || dateStr.search("Z") != -1) { - d = Dygraph.dateStrToMillis(dateStr); - if (d && !isNaN(d)) return d; - } - - if (dateStr.search("-") != -1) { // e.g. '2009-7-12' or '2009-07-12' - dateStrSlashed = dateStr.replace("-", "/", "g"); - while (dateStrSlashed.search("-") != -1) { - dateStrSlashed = dateStrSlashed.replace("-", "/"); - } - d = Dygraph.dateStrToMillis(dateStrSlashed); - } else if (dateStr.length == 8) { // e.g. '20090712' - // TODO(danvk): remove support for this format. It's confusing. - dateStrSlashed = dateStr.substr(0,4) + "/" + dateStr.substr(4,2) + "/" + - dateStr.substr(6,2); - d = Dygraph.dateStrToMillis(dateStrSlashed); - } else { - // Any format that Date.parse will accept, e.g. "2009/07/12" or - // "2009/07/12 12:34:56" - d = Dygraph.dateStrToMillis(dateStr); - } - - if (!d || isNaN(d)) { - Dygraph.error("Couldn't parse " + dateStr + " as a date"); - } - return d; -}; - -/** - * This is identical to JavaScript's built-in Date.parse() method, except that - * it doesn't get replaced with an incompatible method by aggressive JS - * libraries like MooTools or Joomla. - * @param {string} str The date string, e.g. "2011/05/06" - * @return {number} millis since epoch - * @private - */ -Dygraph.dateStrToMillis = function(str) { - return new Date(str).getTime(); -}; - -// These functions are all based on MochiKit. -/** - * Copies all the properties from o to self. - * - * @param {!Object} self - * @param {!Object} o - * @return {!Object} - */ -Dygraph.update = function(self, o) { - if (typeof(o) != 'undefined' && o !== null) { - for (var k in o) { - if (o.hasOwnProperty(k)) { - self[k] = o[k]; - } - } - } - return self; -}; - -/** - * Copies all the properties from o to self. - * - * @param {!Object} self - * @param {!Object} o - * @return {!Object} - * @private - */ -Dygraph.updateDeep = function (self, o) { - // Taken from http://stackoverflow.com/questions/384286/javascript-isdom-how-do-you-check-if-a-javascript-object-is-a-dom-object - function isNode(o) { - return ( - typeof Node === "object" ? o instanceof Node : - typeof o === "object" && typeof o.nodeType === "number" && typeof o.nodeName==="string" - ); - } - - if (typeof(o) != 'undefined' && o !== null) { - for (var k in o) { - if (o.hasOwnProperty(k)) { - if (o[k] === null) { - self[k] = null; - } else if (Dygraph.isArrayLike(o[k])) { - self[k] = o[k].slice(); - } else if (isNode(o[k])) { - // DOM objects are shallowly-copied. - self[k] = o[k]; - } else if (typeof(o[k]) == 'object') { - if (typeof(self[k]) != 'object' || self[k] === null) { - self[k] = {}; - } - Dygraph.updateDeep(self[k], o[k]); - } else { - self[k] = o[k]; - } - } - } - } - return self; -}; - -/** - * @param {Object} o - * @return {boolean} - * @private - */ -Dygraph.isArrayLike = function(o) { - var typ = typeof(o); - if ( - (typ != 'object' && !(typ == 'function' && - typeof(o.item) == 'function')) || - o === null || - typeof(o.length) != 'number' || - o.nodeType === 3 - ) { - return false; - } - return true; -}; - -/** - * @param {Object} o - * @return {boolean} - * @private - */ -Dygraph.isDateLike = function (o) { - if (typeof(o) != "object" || o === null || - typeof(o.getTime) != 'function') { - return false; - } - return true; -}; - -/** - * Note: this only seems to work for arrays. - * @param {!Array} o - * @return {!Array} - * @private - */ -Dygraph.clone = function(o) { - // TODO(danvk): figure out how MochiKit's version works - var r = []; - for (var i = 0; i < o.length; i++) { - if (Dygraph.isArrayLike(o[i])) { - r.push(Dygraph.clone(o[i])); - } else { - r.push(o[i]); - } - } - return r; -}; - -/** - * Create a new canvas element. This is more complex than a simple - * document.createElement("canvas") because of IE and excanvas. - * - * @return {!HTMLCanvasElement} - * @private - */ -Dygraph.createCanvas = function() { - var canvas = document.createElement("canvas"); - - var isIE = (/MSIE/.test(navigator.userAgent) && !window.opera); - if (isIE && (typeof(G_vmlCanvasManager) != 'undefined')) { - canvas = G_vmlCanvasManager.initElement( - /**@type{!HTMLCanvasElement}*/(canvas)); - } - - return canvas; -}; - -/** - * Checks whether the user is on an Android browser. - * Android does not fully support the <canvas> tag, e.g. w/r/t/ clipping. - * @return {boolean} - * @private - */ -Dygraph.isAndroid = function() { - return (/Android/).test(navigator.userAgent); -}; - - -/** - * TODO(danvk): use @template here when it's better supported for classes. - * @param {!Array} array - * @param {number} start - * @param {number} length - * @param {function(!Array,?):boolean=} predicate - * @constructor - */ -Dygraph.Iterator = function(array, start, length, predicate) { - start = start || 0; - length = length || array.length; - this.hasNext = true; // Use to identify if there's another element. - this.peek = null; // Use for look-ahead - this.start_ = start; - this.array_ = array; - this.predicate_ = predicate; - this.end_ = Math.min(array.length, start + length); - this.nextIdx_ = start - 1; // use -1 so initial advance works. - this.next(); // ignoring result. -}; - -/** - * @return {Object} - */ -Dygraph.Iterator.prototype.next = function() { - if (!this.hasNext) { - return null; - } - var obj = this.peek; - - var nextIdx = this.nextIdx_ + 1; - var found = false; - while (nextIdx < this.end_) { - if (!this.predicate_ || this.predicate_(this.array_, nextIdx)) { - this.peek = this.array_[nextIdx]; - found = true; - break; - } - nextIdx++; - } - this.nextIdx_ = nextIdx; - if (!found) { - this.hasNext = false; - this.peek = null; - } - return obj; -}; - -/** - * Returns a new iterator over array, between indexes start and - * start + length, and only returns entries that pass the accept function - * - * @param {!Array} array the array to iterate over. - * @param {number} start the first index to iterate over, 0 if absent. - * @param {number} length the number of elements in the array to iterate over. - * This, along with start, defines a slice of the array, and so length - * doesn't imply the number of elements in the iterator when accept doesn't - * always accept all values. array.length when absent. - * @param {function(?):boolean=} opt_predicate a function that takes - * parameters array and idx, which returns true when the element should be - * returned. If omitted, all elements are accepted. - * @private - */ -Dygraph.createIterator = function(array, start, length, opt_predicate) { - return new Dygraph.Iterator(array, start, length, opt_predicate); -}; - -// Shim layer with setTimeout fallback. -// From: http://paulirish.com/2011/requestanimationframe-for-smart-animating/ -// Should be called with the window context: -// Dygraph.requestAnimFrame.call(window, function() {}) -Dygraph.requestAnimFrame = (function() { - return window.requestAnimationFrame || - window.webkitRequestAnimationFrame || - window.mozRequestAnimationFrame || - window.oRequestAnimationFrame || - window.msRequestAnimationFrame || - function (callback) { - window.setTimeout(callback, 1000 / 60); - }; -})(); - -/** - * Call a function at most maxFrames times at an attempted interval of - * framePeriodInMillis, then call a cleanup function once. repeatFn is called - * once immediately, then at most (maxFrames - 1) times asynchronously. If - * maxFrames==1, then cleanup_fn() is also called synchronously. This function - * is used to sequence animation. - * @param {function(number)} repeatFn Called repeatedly -- takes the frame - * number (from 0 to maxFrames-1) as an argument. - * @param {number} maxFrames The max number of times to call repeatFn - * @param {number} framePeriodInMillis Max requested time between frames. - * @param {function()} cleanupFn A function to call after all repeatFn calls. - * @private - */ -Dygraph.repeatAndCleanup = function(repeatFn, maxFrames, framePeriodInMillis, - cleanupFn) { - var frameNumber = 0; - var previousFrameNumber; - var startTime = new Date().getTime(); - repeatFn(frameNumber); - if (maxFrames == 1) { - cleanupFn(); - return; - } - var maxFrameArg = maxFrames - 1; - - (function loop() { - if (frameNumber >= maxFrames) return; - Dygraph.requestAnimFrame.call(window, function() { - // Determine which frame to draw based on the delay so far. Will skip - // frames if necessary. - var currentTime = new Date().getTime(); - var delayInMillis = currentTime - startTime; - previousFrameNumber = frameNumber; - frameNumber = Math.floor(delayInMillis / framePeriodInMillis); - var frameDelta = frameNumber - previousFrameNumber; - // If we predict that the subsequent repeatFn call will overshoot our - // total frame target, so our last call will cause a stutter, then jump to - // the last call immediately. If we're going to cause a stutter, better - // to do it faster than slower. - var predictOvershootStutter = (frameNumber + frameDelta) > maxFrameArg; - if (predictOvershootStutter || (frameNumber >= maxFrameArg)) { - repeatFn(maxFrameArg); // Ensure final call with maxFrameArg. - cleanupFn(); - } else { - if (frameDelta !== 0) { // Don't call repeatFn with duplicate frames. - repeatFn(frameNumber); - } - loop(); - } - }); - })(); -}; - -/** - * This function will scan the option list and determine if they - * require us to recalculate the pixel positions of each point. - * @param {!Array.<string>} labels a list of options to check. - * @param {!Object} attrs - * @return {boolean} true if the graph needs new points else false. - * @private - */ -Dygraph.isPixelChangingOptionList = function(labels, attrs) { - // A whitelist of options that do not change pixel positions. - var pixelSafeOptions = { - 'annotationClickHandler': true, - 'annotationDblClickHandler': true, - 'annotationMouseOutHandler': true, - 'annotationMouseOverHandler': true, - 'axisLabelColor': true, - 'axisLineColor': true, - 'axisLineWidth': true, - 'clickCallback': true, - 'digitsAfterDecimal': true, - 'drawCallback': true, - 'drawHighlightPointCallback': true, - 'drawPoints': true, - 'drawPointCallback': true, - 'drawXGrid': true, - 'drawYGrid': true, - 'fillAlpha': true, - 'gridLineColor': true, - 'gridLineWidth': true, - 'hideOverlayOnMouseOut': true, - 'highlightCallback': true, - 'highlightCircleSize': true, - 'interactionModel': true, - 'isZoomedIgnoreProgrammaticZoom': true, - 'labelsDiv': true, - 'labelsDivStyles': true, - 'labelsDivWidth': true, - 'labelsKMB': true, - 'labelsKMG2': true, - 'labelsSeparateLines': true, - 'labelsShowZeroValues': true, - 'legend': true, - 'maxNumberWidth': true, - 'panEdgeFraction': true, - 'pixelsPerYLabel': true, - 'pointClickCallback': true, - 'pointSize': true, - 'rangeSelectorPlotFillColor': true, - 'rangeSelectorPlotStrokeColor': true, - 'showLabelsOnHighlight': true, - 'showRoller': true, - 'sigFigs': true, - 'strokeWidth': true, - 'underlayCallback': true, - 'unhighlightCallback': true, - 'xAxisLabelFormatter': true, - 'xTicker': true, - 'xValueFormatter': true, - 'yAxisLabelFormatter': true, - 'yValueFormatter': true, - 'zoomCallback': true - }; - - // Assume that we do not require new points. - // This will change to true if we actually do need new points. - var requiresNewPoints = false; - - // Create a dictionary of series names for faster lookup. - // If there are no labels, then the dictionary stays empty. - var seriesNamesDictionary = { }; - if (labels) { - for (var i = 1; i < labels.length; i++) { - seriesNamesDictionary[labels[i]] = true; - } - } - - // Iterate through the list of updated options. - for (var property in attrs) { - // Break early if we already know we need new points from a previous option. - if (requiresNewPoints) { - break; - } - if (attrs.hasOwnProperty(property)) { - // Find out of this field is actually a series specific options list. - if (seriesNamesDictionary[property]) { - // This property value is a list of options for this series. - // If any of these sub properties are not pixel safe, set the flag. - for (var subProperty in attrs[property]) { - // Break early if we already know we need new points from a previous option. - if (requiresNewPoints) { - break; - } - if (attrs[property].hasOwnProperty(subProperty) && !pixelSafeOptions[subProperty]) { - requiresNewPoints = true; - } - } - // If this was not a series specific option list, check if its a pixel changing property. - } else if (!pixelSafeOptions[property]) { - requiresNewPoints = true; - } - } - } - - return requiresNewPoints; -}; - -/** - * Compares two arrays to see if they are equal. If either parameter is not an - * array it will return false. Does a shallow compare - * Dygraph.compareArrays([[1,2], [3, 4]], [[1,2], [3,4]]) === false. - * @param {!Array.<T>} array1 first array - * @param {!Array.<T>} array2 second array - * @return {boolean} True if both parameters are arrays, and contents are equal. - * @template T - */ -Dygraph.compareArrays = function(array1, array2) { - if (!Dygraph.isArrayLike(array1) || !Dygraph.isArrayLike(array2)) { - return false; - } - if (array1.length !== array2.length) { - return false; - } - for (var i = 0; i < array1.length; i++) { - if (array1[i] !== array2[i]) { - return false; - } - } - return true; -}; - -/** - * @param {!CanvasRenderingContext2D} ctx the canvas context - * @param {number} sides the number of sides in the shape. - * @param {number} radius the radius of the image. - * @param {number} cx center x coordate - * @param {number} cy center y coordinate - * @param {number=} rotationRadians the shift of the initial angle, in radians. - * @param {number=} delta the angle shift for each line. If missing, creates a - * regular polygon. - * @private - */ -Dygraph.regularShape_ = function( - ctx, sides, radius, cx, cy, rotationRadians, delta) { - rotationRadians = rotationRadians || 0; - delta = delta || Math.PI * 2 / sides; - - ctx.beginPath(); - var initialAngle = rotationRadians; - var angle = initialAngle; - - var computeCoordinates = function() { - var x = cx + (Math.sin(angle) * radius); - var y = cy + (-Math.cos(angle) * radius); - return [x, y]; - }; - - var initialCoordinates = computeCoordinates(); - var x = initialCoordinates[0]; - var y = initialCoordinates[1]; - ctx.moveTo(x, y); - - for (var idx = 0; idx < sides; idx++) { - angle = (idx == sides - 1) ? initialAngle : (angle + delta); - var coords = computeCoordinates(); - ctx.lineTo(coords[0], coords[1]); - } - ctx.fill(); - ctx.stroke(); -}; - -/** - * TODO(danvk): be more specific on the return type. - * @param {number} sides - * @param {number=} rotationRadians - * @param {number=} delta - * @return {Function} - * @private - */ -Dygraph.shapeFunction_ = function(sides, rotationRadians, delta) { - return function(g, name, ctx, cx, cy, color, radius) { - ctx.strokeStyle = color; - ctx.fillStyle = "white"; - Dygraph.regularShape_(ctx, sides, radius, cx, cy, rotationRadians, delta); - }; -}; - -Dygraph.Circles = { - DEFAULT : function(g, name, ctx, canvasx, canvasy, color, radius) { - ctx.beginPath(); - ctx.fillStyle = color; - ctx.arc(canvasx, canvasy, radius, 0, 2 * Math.PI, false); - ctx.fill(); - }, - TRIANGLE : Dygraph.shapeFunction_(3), - SQUARE : Dygraph.shapeFunction_(4, Math.PI / 4), - DIAMOND : Dygraph.shapeFunction_(4), - PENTAGON : Dygraph.shapeFunction_(5), - HEXAGON : Dygraph.shapeFunction_(6), - CIRCLE : function(g, name, ctx, cx, cy, color, radius) { - ctx.beginPath(); - ctx.strokeStyle = color; - ctx.fillStyle = "white"; - ctx.arc(cx, cy, radius, 0, 2 * Math.PI, false); - ctx.fill(); - ctx.stroke(); - }, - STAR : Dygraph.shapeFunction_(5, 0, 4 * Math.PI / 5), - PLUS : function(g, name, ctx, cx, cy, color, radius) { - ctx.strokeStyle = color; - - ctx.beginPath(); - ctx.moveTo(cx + radius, cy); - ctx.lineTo(cx - radius, cy); - ctx.closePath(); - ctx.stroke(); - - ctx.beginPath(); - ctx.moveTo(cx, cy + radius); - ctx.lineTo(cx, cy - radius); - ctx.closePath(); - ctx.stroke(); - }, - EX : function(g, name, ctx, cx, cy, color, radius) { - ctx.strokeStyle = color; - - ctx.beginPath(); - ctx.moveTo(cx + radius, cy + radius); - ctx.lineTo(cx - radius, cy - radius); - ctx.closePath(); - ctx.stroke(); - - ctx.beginPath(); - ctx.moveTo(cx + radius, cy - radius); - ctx.lineTo(cx - radius, cy + radius); - ctx.closePath(); - ctx.stroke(); - } -}; - -/** - * To create a "drag" interaction, you typically register a mousedown event - * handler on the element where the drag begins. In that handler, you register a - * mouseup handler on the window to determine when the mouse is released, - * wherever that release happens. This works well, except when the user releases - * the mouse over an off-domain iframe. In that case, the mouseup event is - * handled by the iframe and never bubbles up to the window handler. - * - * To deal with this issue, we cover iframes with high z-index divs to make sure - * they don't capture mouseup. - * - * Usage: - * element.addEventListener('mousedown', function() { - * var tarper = new Dygraph.IFrameTarp(); - * tarper.cover(); - * var mouseUpHandler = function() { - * ... - * window.removeEventListener(mouseUpHandler); - * tarper.uncover(); - * }; - * window.addEventListener('mouseup', mouseUpHandler); - * }; - * - * @constructor - */ -Dygraph.IFrameTarp = function() { - /** @type {Array.<!HTMLDivElement>} */ - this.tarps = []; -}; - -/** - * Find all the iframes in the document and cover them with high z-index - * transparent divs. - */ -Dygraph.IFrameTarp.prototype.cover = function() { - var iframes = document.getElementsByTagName("iframe"); - for (var i = 0; i < iframes.length; i++) { - var iframe = iframes[i]; - var x = Dygraph.findPosX(iframe), - y = Dygraph.findPosY(iframe), - width = iframe.offsetWidth, - height = iframe.offsetHeight; - - var div = document.createElement("div"); - div.style.position = "absolute"; - div.style.left = x + 'px'; - div.style.top = y + 'px'; - div.style.width = width + 'px'; - div.style.height = height + 'px'; - div.style.zIndex = 999; - document.body.appendChild(div); - this.tarps.push(div); - } -}; - -/** - * Remove all the iframe covers. You should call this in a mouseup handler. - */ -Dygraph.IFrameTarp.prototype.uncover = function() { - for (var i = 0; i < this.tarps.length; i++) { - this.tarps[i].parentNode.removeChild(this.tarps[i]); - } - this.tarps = []; -}; - -/** - * Determine whether |data| is delimited by CR, CRLF, LF, LFCR. - * @param {string} data - * @return {?string} the delimiter that was detected (or null on failure). - */ -Dygraph.detectLineDelimiter = function(data) { - for (var i = 0; i < data.length; i++) { - var code = data.charAt(i); - if (code === '\r') { - // Might actually be "\r\n". - if (((i + 1) < data.length) && (data.charAt(i + 1) === '\n')) { - return '\r\n'; - } - return code; - } - if (code === '\n') { - // Might actually be "\n\r". - if (((i + 1) < data.length) && (data.charAt(i + 1) === '\r')) { - return '\n\r'; - } - return code; - } - } - - return null; -}; - -/** - * Is one node contained by another? - * @param {Node} containee The contained node. - * @param {Node} container The container node. - * @return {boolean} Whether containee is inside (or equal to) container. - * @private - */ -Dygraph.isNodeContainedBy = function(containee, container) { - if (container === null || containee === null) { - return false; - } - var containeeNode = /** @type {Node} */ (containee); - while (containeeNode && containeeNode !== container) { - containeeNode = containeeNode.parentNode; - } - return (containeeNode === container); -}; - - -// This masks some numeric issues in older versions of Firefox, -// where 1.0/Math.pow(10,2) != Math.pow(10,-2). -/** @type {function(number,number):number} */ -Dygraph.pow = function(base, exp) { - if (exp < 0) { - return 1.0 / Math.pow(base, -exp); - } - return Math.pow(base, exp); -}; - -// For Dygraph.setDateSameTZ, below. -Dygraph.dateSetters = { - ms: Date.prototype.setMilliseconds, - s: Date.prototype.setSeconds, - m: Date.prototype.setMinutes, - h: Date.prototype.setHours -}; - -/** - * This is like calling d.setSeconds(), d.setMinutes(), etc, except that it - * adjusts for time zone changes to keep the date/time parts consistent. - * - * For example, d.getSeconds(), d.getMinutes() and d.getHours() will all be - * the same before/after you call setDateSameTZ(d, {ms: 0}). The same is not - * true if you call d.setMilliseconds(0). - * - * @type {function(!Date, Object.<number>)} - */ -Dygraph.setDateSameTZ = function(d, parts) { - var tz = d.getTimezoneOffset(); - for (var k in parts) { - if (!parts.hasOwnProperty(k)) continue; - var setter = Dygraph.dateSetters[k]; - if (!setter) throw "Invalid setter: " + k; - setter.call(d, parts[k]); - if (d.getTimezoneOffset() != tz) { - d.setTime(d.getTime() + (tz - d.getTimezoneOffset()) * 60 * 1000); - } - } -}; |