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Unified Diff: perf/dashboard/ui/js/plotter.js

Issue 1654813003: Remove old dead perf dashboard pages and js (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/tools/
Patch Set: Created 4 years, 11 months ago
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Index: perf/dashboard/ui/js/plotter.js
===================================================================
--- perf/dashboard/ui/js/plotter.js (revision 298504)
+++ perf/dashboard/ui/js/plotter.js (working copy)
@@ -1,608 +0,0 @@
-/*
- Copyright (c) 2012 The Chromium Authors. All rights reserved.
- Use of this source code is governed by a BSD-style license that can be
- found in the LICENSE file.
-*/
-
-// Collection of classes used to plot data in a <canvas>. Create a Plotter()
-// to generate a plot.
-
-// Vertical marker for columns.
-function Marker(color) {
- var m = document.createElement("DIV");
- m.setAttribute("class", "plot-cursor");
- m.style.backgroundColor = color;
- m.style.opacity = "0.3";
- m.style.position = "absolute";
- m.style.left = "-2px";
- m.style.top = "-2px";
- m.style.width = "0px";
- m.style.height = "0px";
- return m;
-}
-
-/**
- * Adds commas to |number|.
- *
- * Examples:
- * 1234.56 => "1,234.56"
- * "99999" => "99,999"
- *
- * @param number {string|number} The number to format.
- * @return {string} String representation of |number| with commas every
- * three places.
- */
-function addCommas(number) {
- number += ''; // Convert number to string if not already.
- var numberParts = number.split('.');
- var integralPart = numberParts[0];
- var fractionalPart = numberParts.length > 1 ? '.' + numberParts[1] : '';
- var reThreeDigits = /(\d+)(\d{3})/;
- while (reThreeDigits.test(integralPart)) {
- integralPart = integralPart.replace(reThreeDigits, '$1' + ',' + '$2');
- }
- return integralPart + fractionalPart;
-}
-
-/**
- * HorizontalMarker class
- * Create a horizontal marker at the indicated mouse location.
- * @constructor
- *
- * @param canvasRect {Object} The canvas bounds (in client coords).
- * @param clientY {Number} The vertical mouse click location that spawned
- * the marker, in the client coordinate space.
- * @param yValue {Number} The plotted value corresponding to the clientY
- * click location.
- */
-function HorizontalMarker(canvasRect, clientY, yValue) {
- // Add a horizontal line to the graph.
- var m = document.createElement("DIV");
- m.setAttribute("class", "plot-baseline");
- m.style.backgroundColor = HorizontalMarker.COLOR;
- m.style.opacity = "0.3";
- m.style.position = "absolute";
- m.style.left = canvasRect.offsetLeft;
- var h = HorizontalMarker.HEIGHT;
- m.style.top = (clientY - h/2).toFixed(0) + "px";
- m.style.width = canvasRect.offsetWidth + "px";
- m.style.height = h + "px";
- this.markerDiv_ = m;
-
- this.value = yValue;
-}
-
-HorizontalMarker.HEIGHT = 5;
-HorizontalMarker.COLOR = "rgb(0,100,100)";
-
-// Remove the horizontal line from the graph.
-HorizontalMarker.prototype.remove_ = function() {
- this.markerDiv_.parentNode.removeChild(this.markerDiv_);
-};
-
-
-/**
- * Plotter class
- * @constructor
- *
- * Draws a chart using CANVAS element. Takes array of lines to draw with
- * deviations values for each data sample.
- *
- * @param {Array} clNumbers list of clNumbers for each data sample.
- * @param {Array} plotData list of arrays that represent individual lines.
- * The line itself is an Array of value and stdd.
- * @param {Array} dataDescription list of data description for each line
- * in plotData.
- * @param {string} units name of measurement used to describe plotted data.
- *
- * Example of the plotData:
- * [
- * [line 1 data],
- * [line 2 data]
- * ].
- * Line data looks like [[point one], [point two]].
- * And individual points are [value, deviation value]
- */
-function Plotter(clNumbers, plotData, dataDescription, units, resultNode,
- width, height) {
- this.clNumbers_ = clNumbers;
- this.plotData_ = plotData;
- this.dataDescription_ = dataDescription;
- this.dataColors_ = [];
- this.dataIndexByName_ = {};
- this.resultNode_ = resultNode;
- this.units_ = units;
- this.selectedTraces_ = [];
- this.imageCache_ = null;
- this.enableMouseScroll = true;
- this.coordinates = new Coordinates(plotData, width, height);
- if (isNaN(width))
- this.width = this.coordinates.widthMax;
- else
- this.width = width;
-
- this.plotPane_ = null;
-
- // A color palette that's unambigous for normal and color-deficient viewers.
- // Values are (red, green, blue) on a scale of 255.
- // Taken from http://jfly.iam.u-tokyo.ac.jp/html/manuals/pdf/color_blind.pdf
- this.colors = [[0, 114, 178], // blue
- [230, 159, 0], // orange
- [0, 158, 115], // green
- [204, 121, 167], // purplish pink
- [86, 180, 233], // sky blue
- [213, 94, 0], // dark orange
- [0, 0, 0], // black
- [240, 228, 66] // yellow
- ];
-
- var categoryColors = {};
- var colorIndex = 0;
- for (var i = 0; i < this.dataDescription_.length; i++) {
- this.dataIndexByName_[this.dataDescription_[i]] = i;
- var category = this.dataDescription_[i].replace(/-.*/, "");
- if (this.dataDescription_[i].indexOf("ref") == -1) {
- category += "-ref";
- }
- if (!categoryColors[category]) {
- categoryColors[category] = this.makeColor(colorIndex++);
- }
- this.dataColors_[i] = categoryColors[category];
- }
-}
-
-/**
- * Does the actual plotting.
- */
-Plotter.prototype.plot = function() {
- this.canvas_elt_ = this.canvas();
- this.coordinates_div_ = this.coordinates_();
- this.ruler_div_ = this.ruler();
- // marker for the result-point that the mouse is currently over
- this.cursor_div_ = new Marker("rgb(100,80,240)");
- // marker for the result-point for which details are shown
- this.marker_div_ = new Marker("rgb(100,100,100)");
-
- this.plotPane_ = document.createElement('div');
- this.plotPane_.setAttribute('class', 'plot');
- this.plotPane_.setAttribute('style', 'position: relative');
- this.resultNode_.appendChild(this.plotPane_);
- this.plotPane_.appendChild(this.canvas_elt_);
- this.plotPane_.appendChild(this.ruler_div_);
- this.plotPane_.appendChild(this.cursor_div_);
- this.plotPane_.appendChild(this.marker_div_);
-
- this.resultNode_.appendChild(this.coordinates_div_);
- this.attachEventListeners(this.canvas_elt_);
-
- this.redraw();
-
- this.graduation_divs_ = this.graduations();
- for (var i = 0; i < this.graduation_divs_.length; i++)
- this.plotPane_.appendChild(this.graduation_divs_[i]);
-};
-
-/**
- * Redraws the canvas with selected traces highlighted.
- */
-Plotter.prototype.redraw = function() {
- var ctx = this.canvas_elt_.getContext("2d");
- var doDrawImage = this.selectedTraces_.length || this.imageCache_;
- // Drawing all lines can take a few seconds on large graphs, so use a cache.
- // After the initial render, the cache draws quickly on Firefox and Chrome.
- if (!this.imageCache_) {
- // Clear it with white: otherwise canvas will draw on top of existing data.
- ctx.clearRect(0, 0, this.canvas_elt_.width, this.canvas_elt_.height);
- // Draw all data lines.
- for (var i = 0; i < this.plotData_.length; i++)
- this.plotLine_(ctx, this.getDataColor(i), this.plotData_[i]);
- // Here we convert the canvas to an image by making a new Image with
- // src set to the canvas's Data URL.
- var imageDataURL = this.canvas_elt_.toDataURL();
- this.imageCache_ = new Image;
- this.imageCache_.src = imageDataURL;
- }
- if (doDrawImage) {
- // Clear it again so we don't draw on top of the old line.
- ctx.clearRect(0, 0, this.canvas_elt_.width, this.canvas_elt_.height);
- // If we have selections, dim the other traces by first setting low alpha.
- if (this.selectedTraces_.length)
- ctx.globalAlpha = 0.2;
- // Draw the cached image.
- ctx.drawImage(this.imageCache_, 0, 0);
- // Restore the alpha so we can draw selected lines in full opacity.
- ctx.globalAlpha = 1;
- }
- // Now draw all selected traces in order of selection.
- for (var i = 0; i < this.selectedTraces_.length; i++) {
- var index = this.selectedTraces_[i];
- this.plotLine_(ctx, this.getDataColor(index), this.plotData_[index]);
- }
-};
-
-/**
- * Sets the selected state of a given trace.
- * @param {number} trace_index
- * @return {boolean} true if the trace has been selected, false if deselected.
- */
-Plotter.prototype.toggleSelection = function(trace_index) {
- var i = this.selectedTraces_.indexOf(trace_index);
- var ret = (i == -1);
- if (ret)
- this.selectedTraces_.push(trace_index);
- else
- this.selectedTraces_.splice(i, 1);
- this.redraw();
- return ret;
-};
-
-Plotter.prototype.drawDeviationBar_ = function(context, strokeStyles, x,
- y_errLow, y_errHigh) {
- context.strokeStyle = strokeStyles;
- context.lineWidth = 1.0;
- context.beginPath();
- context.moveTo(x, y_errHigh);
- context.lineTo(x, y_errLow);
- context.closePath();
- context.stroke();
-};
-
-Plotter.prototype.plotLine_ = function(ctx, strokeStyles, data) {
- ctx.strokeStyle = strokeStyles;
- ctx.lineWidth = 2.0;
- ctx.beginPath();
- var initial = true;
- var deviationData = [];
- for (var i = 0; i < data.length; i++) {
- var x = this.coordinates.xPoints(i);
- var value = parseFloat(data[i][0]);
- var stdd = parseFloat(data[i][1]);
- var y = 0.0;
- var y_errLow = 0.0;
- var y_errHigh = 0.0;
- if (isNaN(value)) {
- // Re-set 'initial' if we're at a gap in the data.
- initial = true;
- } else {
- y = this.coordinates.yPoints(value);
- // We assume that the stdd will only be NaN (missing) when the value is.
- if (value != 0.0) {
- y_errLow = this.coordinates.yPoints(value - stdd);
- y_errHigh = this.coordinates.yPoints(value + stdd);
- }
- if (initial)
- initial = false;
- else
- ctx.lineTo(x, y);
- }
-
- ctx.moveTo(x, y);
- deviationData.push([x, y_errLow, y_errHigh]);
- }
- ctx.closePath();
- ctx.stroke();
-
- for (var i = 0; i < deviationData.length; i++) {
- this.drawDeviationBar_(ctx, strokeStyles, deviationData[i][0],
- deviationData[i][1], deviationData[i][2]);
- }
-};
-
-Plotter.prototype.attachEventListeners = function(canvas) {
- var self = this;
- if (this.enableMouseScroll) {
- canvas.parentNode.addEventListener(
- "mousewheel", function(evt) { self.onMouseScroll_(evt); }, false);
- canvas.parentNode.addEventListener(
- "DOMMouseScroll", function(evt) { self.onMouseScroll_(evt); }, false);
- }
- canvas.parentNode.addEventListener(
- "mousemove", function(evt) { self.onMouseMove_(evt); }, false);
- this.cursor_div_.addEventListener(
- "click", function(evt) { self.onMouseClick_(evt); }, false);
-};
-
-Plotter.prototype.onMouseScroll_ = function(evt) {
- // Chrome uses wheelDelta and Mozilla uses detail with opposite sign values.
- var zoom = evt.wheelDelta ? evt.wheelDelta : -evt.detail;
- zoom = zoom < 0 ? -1 : 1;
- // Zoom less if the shift key is held.
- if (evt.shiftKey)
- zoom /= 10;
-
- var obj = this.canvas_elt_;
- var offsetTop = 0;
- do {
- offsetTop += obj.offsetTop;
- } while (obj = obj.offsetParent);
- var positionY = evt.clientY + document.body.scrollTop - offsetTop;
- var yValue = this.coordinates.yValue(positionY);
- var yTopToMouse = this.coordinates.yMaxValue - (this.coordinates.yMaxValue +
- yValue) / 2;
- var yBottomToMouse = (yValue + this.coordinates.yMinValue) / 2 -
- this.coordinates.yMinValue;
-
- this.coordinates.yMinValue += yBottomToMouse * zoom;
- this.coordinates.yMaxValue -= yTopToMouse * zoom;
- this.imageCache_ = null;
- if(this.horizontal_marker_) {
- this.horizontal_marker_.remove_();
- this.horizontal_marker_ = null;
- }
- for (var i = 0; i < this.graduation_divs_.length; i++)
- this.plotPane_.removeChild(this.graduation_divs_[i]);
- this.graduation_divs_ = this.graduations();
- for (var i = 0; i < this.graduation_divs_.length; i++)
- this.plotPane_.appendChild(this.graduation_divs_[i]);
- this.redraw();
-};
-
-Plotter.prototype.updateRuler_ = function(evt) {
- var r = this.ruler_div_;
- var obj = this.canvas_elt_;
- var offsetTop = 0;
- do {
- offsetTop += obj.offsetTop;
- } while (obj = obj.offsetParent);
- r.style.left = this.canvas_elt_.offsetLeft + "px";
- r.style.top = this.canvas_elt_.offsetTop + "px";
- r.style.width = this.canvas_elt_.offsetWidth + "px";
- var h = evt.clientY + document.body.scrollTop - offsetTop;
- if (h > this.canvas_elt_.offsetHeight)
- h = this.canvas_elt_.offsetHeight;
- r.style.height = h + "px";
-};
-
-Plotter.prototype.updateCursor_ = function() {
- var c = this.cursor_div_;
- c.style.top = this.canvas_elt_.offsetTop + "px";
- c.style.height = this.canvas_elt_.offsetHeight + "px";
- var w = this.canvas_elt_.offsetWidth / this.clNumbers_.length;
- var x = (this.canvas_elt_.offsetLeft + w * this.current_index_).toFixed(0);
- c.style.left = x + "px";
- c.style.width = w + "px";
-};
-
-Plotter.prototype.chromiumCLNumber_ = function(index) {
- // CL number entries are either revisions or objects of the form
- // {chromium: revision, webkit: revision}
- return this.clNumbers_[index].chromium || this.clNumbers_[index];
-};
-
-Plotter.prototype.onMouseMove_ = function(evt) {
- var obj = this.canvas_elt_;
- var offsetTop = 0;
- var offsetLeft = 0;
- do {
- offsetTop += obj.offsetTop;
- offsetLeft += obj.offsetLeft;
- } while (obj = obj.offsetParent);
-
- var canvas = evt.currentTarget.firstChild;
- var positionX = evt.clientX + document.body.scrollLeft - offsetLeft;
- var positionY = evt.clientY + document.body.scrollTop - offsetTop;
-
- this.current_index_ = this.coordinates.dataSampleIndex(positionX);
- var yValue = this.coordinates.yValue(positionY);
-
- var html = "";
- if (!isNaN(this.chromiumCLNumber_(0)))
- html = "r";
- html += this.chromiumCLNumber_(this.current_index_);
- var webkitCLNumber = this.clNumbers_[this.current_index_].webkit;
- if (webkitCLNumber) {
- html += ", webkit ";
- if (!isNaN(webkitCLNumber))
- html += "r";
- html += webkitCLNumber;
- }
-
- html += ": " +
- addCommas(this.plotData_[0][this.current_index_][0].toFixed(2)) +
- " " + this.units_ + " +/- " +
- addCommas(this.plotData_[0][this.current_index_][1].toFixed(2)) +
- " " + addCommas(yValue.toFixed(2)) + " " + this.units_;
-
- this.coordinates_td_.innerHTML = html;
-
- // If there is a horizontal marker, also display deltas relative to it.
- if (this.horizontal_marker_) {
- var baseline = this.horizontal_marker_.value;
- var delta = yValue - baseline;
- var fraction = delta / baseline; // allow division by 0
-
- var deltaStr = (delta >= 0 ? "+" : "") + delta.toFixed(0) + " " +
- this.units_;
- var percentStr = (fraction >= 0 ? "+" : "") +
- (fraction * 100).toFixed(3) + "%";
-
- this.baseline_deltas_td_.innerHTML = deltaStr + ": " + percentStr;
- }
-
- this.updateRuler_(evt);
- this.updateCursor_();
-};
-
-Plotter.incrementNumericCLNumber = function(value) {
- if (isNaN(value))
- return value;
- return value + 1;
-};
-
-Plotter.prototype.onMouseClick_ = function(evt) {
- // Shift-click controls the horizontal reference line.
- if (evt.shiftKey) {
- if (this.horizontal_marker_) {
- this.horizontal_marker_.remove_();
- }
- var obj = this.canvas_elt_;
- var offsetTop = 0;
- do {
- offsetTop += obj.offsetTop;
- } while (obj = obj.offsetParent);
- var canvasY = evt.clientY + document.body.scrollTop - offsetTop;
- this.horizontal_marker_ = new HorizontalMarker(
- this.canvas_elt_, evt.clientY + document.body.scrollTop - offsetTop,
- this.coordinates.yValue(canvasY));
-
- // Insert before cursor node, otherwise it catches clicks.
- this.cursor_div_.parentNode.insertBefore(
- this.horizontal_marker_.markerDiv_, this.cursor_div_);
- } else {
- var index = this.current_index_;
- var m = this.marker_div_;
- var c = this.cursor_div_;
- m.style.top = c.style.top;
- m.style.left = c.style.left;
- m.style.width = c.style.width;
- m.style.height = c.style.height;
- if ("onclick" in this) {
- var this_x = this.clNumbers_[index];
- // TODO(tonyg): When the clNumber is not numeric, the range includes one
- // too many revisions on the starting side.
- var prev_x = this_x;
- if (index > 0) {
- prev_x_source = this.clNumbers_[index-1];
- if (typeof prev_x_source == 'object') {
- prev_x = {};
- for (var key in prev_x_source) {
- prev_x[key] = Plotter.incrementNumericCLNumber(prev_x_source[key]);
- }
- } else {
- prev_x = Plotter.incrementNumericCLNumber(prev_x_source);
- }
- }
- this.onclick(prev_x, this_x);
- }
- }
-};
-
-Plotter.prototype.canvas = function() {
- var canvas = document.createElement("CANVAS");
- canvas.setAttribute("class", "plot");
- canvas.setAttribute("width", this.coordinates.widthMax);
- canvas.setAttribute("height", this.coordinates.heightMax);
- canvas.plotter = this;
- return canvas;
-};
-
-Plotter.prototype.ruler = function() {
- var ruler = document.createElement("DIV");
- ruler.setAttribute("class", "plot-ruler");
- ruler.style.borderBottom = "1px dotted black";
- ruler.style.position = "absolute";
- ruler.style.left = "-2px";
- ruler.style.top = "-2px";
- ruler.style.width = "0px";
- ruler.style.height = "0px";
- return ruler;
-};
-
-Plotter.prototype.graduations = function() {
- // Don't allow a graduation in the bottom 5% of the chart
- // or the number label would overflow the chart bounds.
- var yMin = this.coordinates.yMinValue + .05 * this.coordinates.yValueRange();
- var yRange = this.coordinates.yMaxValue - yMin;
-
- // Use the largest scale that fits 3 or more graduations.
- // We allow scales of [...,500, 250, 100, 50, 25, 10,...].
- var scale = 5000000000;
- while (scale) {
- if (Math.floor(yRange / scale) > 2) break; // 5s
- scale /= 2;
- if (Math.floor(yRange / scale) > 2) break; // 2.5s
- scale /= 2.5;
- if (Math.floor(yRange / scale) > 2) break; // 1s
- scale /= 2;
- }
-
- var graduationPosition = yMin + (scale - yMin % scale);
- var graduationDivs = [];
- while (graduationPosition < this.coordinates.yMaxValue) {
- var graduation = document.createElement("DIV");
- var canvasPosition = this.coordinates.yPoints(graduationPosition);
- graduation.style.borderTop = "1px dashed rgba(0,0,0,.08)";
- graduation.style.position = "absolute";
- graduation.style.left = this.canvas_elt_.offsetLeft + "px";
- graduation.style.top = canvasPosition + this.canvas_elt_.offsetTop + "px";
- graduation.style.width =
- this.canvas_elt_.offsetWidth - 4 + "px";
- graduation.style.paddingLeft = "4px";
- graduation.style.color = "rgba(0,0,0,.4)";
- graduation.style.fontSize = "9px";
- graduation.style.paddingTop = "0";
- graduation.style.zIndex = "-1";
- graduation.innerHTML = addCommas(graduationPosition);
- graduationDivs.push(graduation);
- graduationPosition += scale;
- }
- return graduationDivs;
-};
-
-Plotter.prototype.coordinates_ = function() {
- var coordinatesDiv = document.createElement("DIV");
- var fontSize = Math.max(0.8, this.width / 400 * 0.75);
- fontSize = Math.min(1.0, fontSize);
-
- var table = document.createElement("table");
- coordinatesDiv.appendChild(table);
- table.style.cssText = "border=0; width=100%; font-size:" + fontSize + "em;";
- var tr = document.createElement("tr");
- table.appendChild(tr);
- var td = document.createElement("td");
- tr.appendChild(td);
- td.className = "legend";
- td.innerHTML = "Legend: ";
-
- for (var i = 0; i < this.dataDescription_.length; i++) {
- if (i > 0)
- td.appendChild(document.createTextNode(", "));
- var legendItem = document.createElement("a");
- td.appendChild(legendItem);
- legendItem.className = "legend_item";
- legendItem.href = "#";
- legendItem.style.cssText = "text-decoration: none; color: " +
- this.getDataColor(i);
- var obj = this;
- legendItem.onclick = (
- function(){
- var index = i;
- return function() {
- this.style.fontWeight = (obj.toggleSelection(index)) ?
- "bold" : "normal";
- return false;
- };
- })();
- legendItem.innerHTML = this.dataDescription_[i];
- }
-
- this.coordinates_td_ = document.createElement("td");
- this.coordinates_td_.innerHTML = "<i>move mouse over graph</i>";
- tr.appendChild(this.coordinates_td_);
-
- this.baseline_deltas_td_ = document.createElement("td");
- this.baseline_deltas_td_.style.color = HorizontalMarker.COLOR;
- tr.appendChild(this.baseline_deltas_td_);
-
- return coordinatesDiv;
-};
-
-Plotter.prototype.makeColor = function(i) {
- var index = i % this.colors.length;
- return "rgb(" + this.colors[index][0] + "," +
- this.colors[index][1] + "," +
- this.colors[index][2] + ")";
-};
-
-Plotter.prototype.getDataColor = function(i) {
- if (this.dataColors_[i]) {
- return this.dataColors_[i];
- } else {
- return this.makeColor(i);
- }
-};
-
-Plotter.prototype.log = function(val) {
- document.getElementById('log').appendChild(
- document.createTextNode(val + '\n'));
-};
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