Index: third_party/flot/jquery.flot.time.js |
diff --git a/third_party/flot/jquery.flot.time.js b/third_party/flot/jquery.flot.time.js |
new file mode 100644 |
index 0000000000000000000000000000000000000000..34c1d121259a2ff18c4b04ec8ed7d773a732670c |
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+++ b/third_party/flot/jquery.flot.time.js |
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+/* Pretty handling of time axes. |
+ |
+Copyright (c) 2007-2014 IOLA and Ole Laursen. |
+Licensed under the MIT license. |
+ |
+Set axis.mode to "time" to enable. See the section "Time series data" in |
+API.txt for details. |
+ |
+*/ |
+ |
+(function($) { |
+ |
+ var options = { |
+ xaxis: { |
+ timezone: null, // "browser" for local to the client or timezone for timezone-js |
+ timeformat: null, // format string to use |
+ twelveHourClock: false, // 12 or 24 time in time mode |
+ monthNames: null // list of names of months |
+ } |
+ }; |
+ |
+ // round to nearby lower multiple of base |
+ |
+ function floorInBase(n, base) { |
+ return base * Math.floor(n / base); |
+ } |
+ |
+ // Returns a string with the date d formatted according to fmt. |
+ // A subset of the Open Group's strftime format is supported. |
+ |
+ function formatDate(d, fmt, monthNames, dayNames) { |
+ |
+ if (typeof d.strftime == "function") { |
+ return d.strftime(fmt); |
+ } |
+ |
+ var leftPad = function(n, pad) { |
+ n = "" + n; |
+ pad = "" + (pad == null ? "0" : pad); |
+ return n.length == 1 ? pad + n : n; |
+ }; |
+ |
+ var r = []; |
+ var escape = false; |
+ var hours = d.getHours(); |
+ var isAM = hours < 12; |
+ |
+ if (monthNames == null) { |
+ monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]; |
+ } |
+ |
+ if (dayNames == null) { |
+ dayNames = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]; |
+ } |
+ |
+ var hours12; |
+ |
+ if (hours > 12) { |
+ hours12 = hours - 12; |
+ } else if (hours == 0) { |
+ hours12 = 12; |
+ } else { |
+ hours12 = hours; |
+ } |
+ |
+ for (var i = 0; i < fmt.length; ++i) { |
+ |
+ var c = fmt.charAt(i); |
+ |
+ if (escape) { |
+ switch (c) { |
+ case 'a': c = "" + dayNames[d.getDay()]; break; |
+ case 'b': c = "" + monthNames[d.getMonth()]; break; |
+ case 'd': c = leftPad(d.getDate()); break; |
+ case 'e': c = leftPad(d.getDate(), " "); break; |
+ case 'h': // For back-compat with 0.7; remove in 1.0 |
+ case 'H': c = leftPad(hours); break; |
+ case 'I': c = leftPad(hours12); break; |
+ case 'l': c = leftPad(hours12, " "); break; |
+ case 'm': c = leftPad(d.getMonth() + 1); break; |
+ case 'M': c = leftPad(d.getMinutes()); break; |
+ // quarters not in Open Group's strftime specification |
+ case 'q': |
+ c = "" + (Math.floor(d.getMonth() / 3) + 1); break; |
+ case 'S': c = leftPad(d.getSeconds()); break; |
+ case 'y': c = leftPad(d.getFullYear() % 100); break; |
+ case 'Y': c = "" + d.getFullYear(); break; |
+ case 'p': c = (isAM) ? ("" + "am") : ("" + "pm"); break; |
+ case 'P': c = (isAM) ? ("" + "AM") : ("" + "PM"); break; |
+ case 'w': c = "" + d.getDay(); break; |
+ } |
+ r.push(c); |
+ escape = false; |
+ } else { |
+ if (c == "%") { |
+ escape = true; |
+ } else { |
+ r.push(c); |
+ } |
+ } |
+ } |
+ |
+ return r.join(""); |
+ } |
+ |
+ // To have a consistent view of time-based data independent of which time |
+ // zone the client happens to be in we need a date-like object independent |
+ // of time zones. This is done through a wrapper that only calls the UTC |
+ // versions of the accessor methods. |
+ |
+ function makeUtcWrapper(d) { |
+ |
+ function addProxyMethod(sourceObj, sourceMethod, targetObj, targetMethod) { |
+ sourceObj[sourceMethod] = function() { |
+ return targetObj[targetMethod].apply(targetObj, arguments); |
+ }; |
+ }; |
+ |
+ var utc = { |
+ date: d |
+ }; |
+ |
+ // support strftime, if found |
+ |
+ if (d.strftime != undefined) { |
+ addProxyMethod(utc, "strftime", d, "strftime"); |
+ } |
+ |
+ addProxyMethod(utc, "getTime", d, "getTime"); |
+ addProxyMethod(utc, "setTime", d, "setTime"); |
+ |
+ var props = ["Date", "Day", "FullYear", "Hours", "Milliseconds", "Minutes", "Month", "Seconds"]; |
+ |
+ for (var p = 0; p < props.length; p++) { |
+ addProxyMethod(utc, "get" + props[p], d, "getUTC" + props[p]); |
+ addProxyMethod(utc, "set" + props[p], d, "setUTC" + props[p]); |
+ } |
+ |
+ return utc; |
+ }; |
+ |
+ // select time zone strategy. This returns a date-like object tied to the |
+ // desired timezone |
+ |
+ function dateGenerator(ts, opts) { |
+ if (opts.timezone == "browser") { |
+ return new Date(ts); |
+ } else if (!opts.timezone || opts.timezone == "utc") { |
+ return makeUtcWrapper(new Date(ts)); |
+ } else if (typeof timezoneJS != "undefined" && typeof timezoneJS.Date != "undefined") { |
+ var d = new timezoneJS.Date(); |
+ // timezone-js is fickle, so be sure to set the time zone before |
+ // setting the time. |
+ d.setTimezone(opts.timezone); |
+ d.setTime(ts); |
+ return d; |
+ } else { |
+ return makeUtcWrapper(new Date(ts)); |
+ } |
+ } |
+ |
+ // map of app. size of time units in milliseconds |
+ |
+ var timeUnitSize = { |
+ "second": 1000, |
+ "minute": 60 * 1000, |
+ "hour": 60 * 60 * 1000, |
+ "day": 24 * 60 * 60 * 1000, |
+ "month": 30 * 24 * 60 * 60 * 1000, |
+ "quarter": 3 * 30 * 24 * 60 * 60 * 1000, |
+ "year": 365.2425 * 24 * 60 * 60 * 1000 |
+ }; |
+ |
+ // the allowed tick sizes, after 1 year we use |
+ // an integer algorithm |
+ |
+ var baseSpec = [ |
+ [1, "second"], [2, "second"], [5, "second"], [10, "second"], |
+ [30, "second"], |
+ [1, "minute"], [2, "minute"], [5, "minute"], [10, "minute"], |
+ [30, "minute"], |
+ [1, "hour"], [2, "hour"], [4, "hour"], |
+ [8, "hour"], [12, "hour"], |
+ [1, "day"], [2, "day"], [3, "day"], |
+ [0.25, "month"], [0.5, "month"], [1, "month"], |
+ [2, "month"] |
+ ]; |
+ |
+ // we don't know which variant(s) we'll need yet, but generating both is |
+ // cheap |
+ |
+ var specMonths = baseSpec.concat([[3, "month"], [6, "month"], |
+ [1, "year"]]); |
+ var specQuarters = baseSpec.concat([[1, "quarter"], [2, "quarter"], |
+ [1, "year"]]); |
+ |
+ function init(plot) { |
+ plot.hooks.processOptions.push(function (plot, options) { |
+ $.each(plot.getAxes(), function(axisName, axis) { |
+ |
+ var opts = axis.options; |
+ |
+ if (opts.mode == "time") { |
+ axis.tickGenerator = function(axis) { |
+ |
+ var ticks = []; |
+ var d = dateGenerator(axis.min, opts); |
+ var minSize = 0; |
+ |
+ // make quarter use a possibility if quarters are |
+ // mentioned in either of these options |
+ |
+ var spec = (opts.tickSize && opts.tickSize[1] === |
+ "quarter") || |
+ (opts.minTickSize && opts.minTickSize[1] === |
+ "quarter") ? specQuarters : specMonths; |
+ |
+ if (opts.minTickSize != null) { |
+ if (typeof opts.tickSize == "number") { |
+ minSize = opts.tickSize; |
+ } else { |
+ minSize = opts.minTickSize[0] * timeUnitSize[opts.minTickSize[1]]; |
+ } |
+ } |
+ |
+ for (var i = 0; i < spec.length - 1; ++i) { |
+ if (axis.delta < (spec[i][0] * timeUnitSize[spec[i][1]] |
+ + spec[i + 1][0] * timeUnitSize[spec[i + 1][1]]) / 2 |
+ && spec[i][0] * timeUnitSize[spec[i][1]] >= minSize) { |
+ break; |
+ } |
+ } |
+ |
+ var size = spec[i][0]; |
+ var unit = spec[i][1]; |
+ |
+ // special-case the possibility of several years |
+ |
+ if (unit == "year") { |
+ |
+ // if given a minTickSize in years, just use it, |
+ // ensuring that it's an integer |
+ |
+ if (opts.minTickSize != null && opts.minTickSize[1] == "year") { |
+ size = Math.floor(opts.minTickSize[0]); |
+ } else { |
+ |
+ var magn = Math.pow(10, Math.floor(Math.log(axis.delta / timeUnitSize.year) / Math.LN10)); |
+ var norm = (axis.delta / timeUnitSize.year) / magn; |
+ |
+ if (norm < 1.5) { |
+ size = 1; |
+ } else if (norm < 3) { |
+ size = 2; |
+ } else if (norm < 7.5) { |
+ size = 5; |
+ } else { |
+ size = 10; |
+ } |
+ |
+ size *= magn; |
+ } |
+ |
+ // minimum size for years is 1 |
+ |
+ if (size < 1) { |
+ size = 1; |
+ } |
+ } |
+ |
+ axis.tickSize = opts.tickSize || [size, unit]; |
+ var tickSize = axis.tickSize[0]; |
+ unit = axis.tickSize[1]; |
+ |
+ var step = tickSize * timeUnitSize[unit]; |
+ |
+ if (unit == "second") { |
+ d.setSeconds(floorInBase(d.getSeconds(), tickSize)); |
+ } else if (unit == "minute") { |
+ d.setMinutes(floorInBase(d.getMinutes(), tickSize)); |
+ } else if (unit == "hour") { |
+ d.setHours(floorInBase(d.getHours(), tickSize)); |
+ } else if (unit == "month") { |
+ d.setMonth(floorInBase(d.getMonth(), tickSize)); |
+ } else if (unit == "quarter") { |
+ d.setMonth(3 * floorInBase(d.getMonth() / 3, |
+ tickSize)); |
+ } else if (unit == "year") { |
+ d.setFullYear(floorInBase(d.getFullYear(), tickSize)); |
+ } |
+ |
+ // reset smaller components |
+ |
+ d.setMilliseconds(0); |
+ |
+ if (step >= timeUnitSize.minute) { |
+ d.setSeconds(0); |
+ } |
+ if (step >= timeUnitSize.hour) { |
+ d.setMinutes(0); |
+ } |
+ if (step >= timeUnitSize.day) { |
+ d.setHours(0); |
+ } |
+ if (step >= timeUnitSize.day * 4) { |
+ d.setDate(1); |
+ } |
+ if (step >= timeUnitSize.month * 2) { |
+ d.setMonth(floorInBase(d.getMonth(), 3)); |
+ } |
+ if (step >= timeUnitSize.quarter * 2) { |
+ d.setMonth(floorInBase(d.getMonth(), 6)); |
+ } |
+ if (step >= timeUnitSize.year) { |
+ d.setMonth(0); |
+ } |
+ |
+ var carry = 0; |
+ var v = Number.NaN; |
+ var prev; |
+ |
+ do { |
+ |
+ prev = v; |
+ v = d.getTime(); |
+ ticks.push(v); |
+ |
+ if (unit == "month" || unit == "quarter") { |
+ if (tickSize < 1) { |
+ |
+ // a bit complicated - we'll divide the |
+ // month/quarter up but we need to take |
+ // care of fractions so we don't end up in |
+ // the middle of a day |
+ |
+ d.setDate(1); |
+ var start = d.getTime(); |
+ d.setMonth(d.getMonth() + |
+ (unit == "quarter" ? 3 : 1)); |
+ var end = d.getTime(); |
+ d.setTime(v + carry * timeUnitSize.hour + (end - start) * tickSize); |
+ carry = d.getHours(); |
+ d.setHours(0); |
+ } else { |
+ d.setMonth(d.getMonth() + |
+ tickSize * (unit == "quarter" ? 3 : 1)); |
+ } |
+ } else if (unit == "year") { |
+ d.setFullYear(d.getFullYear() + tickSize); |
+ } else { |
+ d.setTime(v + step); |
+ } |
+ } while (v < axis.max && v != prev); |
+ |
+ return ticks; |
+ }; |
+ |
+ axis.tickFormatter = function (v, axis) { |
+ |
+ var d = dateGenerator(v, axis.options); |
+ |
+ // first check global format |
+ |
+ if (opts.timeformat != null) { |
+ return formatDate(d, opts.timeformat, opts.monthNames, opts.dayNames); |
+ } |
+ |
+ // possibly use quarters if quarters are mentioned in |
+ // any of these places |
+ |
+ var useQuarters = (axis.options.tickSize && |
+ axis.options.tickSize[1] == "quarter") || |
+ (axis.options.minTickSize && |
+ axis.options.minTickSize[1] == "quarter"); |
+ |
+ var t = axis.tickSize[0] * timeUnitSize[axis.tickSize[1]]; |
+ var span = axis.max - axis.min; |
+ var suffix = (opts.twelveHourClock) ? " %p" : ""; |
+ var hourCode = (opts.twelveHourClock) ? "%I" : "%H"; |
+ var fmt; |
+ |
+ if (t < timeUnitSize.minute) { |
+ fmt = hourCode + ":%M:%S" + suffix; |
+ } else if (t < timeUnitSize.day) { |
+ if (span < 2 * timeUnitSize.day) { |
+ fmt = hourCode + ":%M" + suffix; |
+ } else { |
+ fmt = "%b %d " + hourCode + ":%M" + suffix; |
+ } |
+ } else if (t < timeUnitSize.month) { |
+ fmt = "%b %d"; |
+ } else if ((useQuarters && t < timeUnitSize.quarter) || |
+ (!useQuarters && t < timeUnitSize.year)) { |
+ if (span < timeUnitSize.year) { |
+ fmt = "%b"; |
+ } else { |
+ fmt = "%b %Y"; |
+ } |
+ } else if (useQuarters && t < timeUnitSize.year) { |
+ if (span < timeUnitSize.year) { |
+ fmt = "Q%q"; |
+ } else { |
+ fmt = "Q%q %Y"; |
+ } |
+ } else { |
+ fmt = "%Y"; |
+ } |
+ |
+ var rt = formatDate(d, fmt, opts.monthNames, opts.dayNames); |
+ |
+ return rt; |
+ }; |
+ } |
+ }); |
+ }); |
+ } |
+ |
+ $.plot.plugins.push({ |
+ init: init, |
+ options: options, |
+ name: 'time', |
+ version: '1.0' |
+ }); |
+ |
+ // Time-axis support used to be in Flot core, which exposed the |
+ // formatDate function on the plot object. Various plugins depend |
+ // on the function, so we need to re-expose it here. |
+ |
+ $.plot.formatDate = formatDate; |
+ $.plot.dateGenerator = dateGenerator; |
+ |
+})(jQuery); |