node-inspector-sans-ws
Version:
Web Inspector based nodeJS debugger
965 lines (833 loc) • 34.7 kB
JavaScript
/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @constructor
* @extends {WebInspector.View}
* @param {WebInspector.TimelineModel} model
*/
WebInspector.TimelineOverviewPane = function(model)
{
WebInspector.View.call(this);
this.element.id = "timeline-overview-panel";
this._windowStartTime = 0;
this._windowEndTime = Infinity;
this._eventDividers = [];
this._model = model;
this._topPaneSidebarElement = document.createElement("div");
this._topPaneSidebarElement.id = "timeline-overview-sidebar";
var overviewTreeElement = document.createElement("ol");
overviewTreeElement.className = "sidebar-tree";
this._topPaneSidebarElement.appendChild(overviewTreeElement);
this.element.appendChild(this._topPaneSidebarElement);
var topPaneSidebarTree = new TreeOutline(overviewTreeElement);
this._overviewItems = {};
this._overviewItems[WebInspector.TimelineOverviewPane.Mode.Events] = new WebInspector.SidebarTreeElement("timeline-overview-sidebar-events",
WebInspector.UIString("Events"));
this._overviewItems[WebInspector.TimelineOverviewPane.Mode.Frames] = new WebInspector.SidebarTreeElement("timeline-overview-sidebar-frames",
WebInspector.UIString("Frames"));
this._overviewItems[WebInspector.TimelineOverviewPane.Mode.Memory] = new WebInspector.SidebarTreeElement("timeline-overview-sidebar-memory",
WebInspector.UIString("Memory"));
for (var mode in this._overviewItems) {
var item = this._overviewItems[mode];
item.onselect = this.setMode.bind(this, mode);
topPaneSidebarTree.appendChild(item);
}
this._overviewGrid = new WebInspector.OverviewGrid("timeline");
this.element.appendChild(this._overviewGrid.element);
var separatorElement = document.createElement("div");
separatorElement.id = "timeline-overview-separator";
this.element.appendChild(separatorElement);
this._innerSetMode(WebInspector.TimelineOverviewPane.Mode.Events);
var categories = WebInspector.TimelinePresentationModel.categories();
for (var category in categories)
categories[category].addEventListener(WebInspector.TimelineCategory.Events.VisibilityChanged, this._onCategoryVisibilityChanged, this);
this._overviewCalculator = new WebInspector.TimelineOverviewCalculator();
model.addEventListener(WebInspector.TimelineModel.Events.RecordAdded, this._onRecordAdded, this);
model.addEventListener(WebInspector.TimelineModel.Events.RecordsCleared, this._reset, this);
this._overviewGrid.addEventListener(WebInspector.OverviewGrid.Events.WindowChanged, this._onWindowChanged, this);
}
WebInspector.TimelineOverviewPane.Mode = {
Events: "Events",
Frames: "Frames",
Memory: "Memory"
};
WebInspector.TimelineOverviewPane.Events = {
ModeChanged: "ModeChanged",
WindowChanged: "WindowChanged"
};
WebInspector.TimelineOverviewPane.prototype = {
wasShown: function()
{
this._update();
},
onResize: function()
{
this._update();
},
setMode: function(newMode)
{
if (this._currentMode === newMode)
return;
var windowTimes;
if (this._overviewControl)
windowTimes = this._overviewControl.windowTimes(this.windowLeft(), this.windowRight());
this._innerSetMode(newMode);
this.dispatchEventToListeners(WebInspector.TimelineOverviewPane.Events.ModeChanged, this._currentMode);
if (windowTimes && windowTimes.startTime >= 0)
this.setWindowTimes(windowTimes.startTime, windowTimes.endTime);
this._update();
},
_innerSetMode: function(newMode)
{
var windowTimes;
if (this._overviewControl)
this._overviewControl.detach();
this._currentMode = newMode;
this._overviewControl = this._createOverviewControl();
this._overviewControl.show(this._overviewGrid.element);
this._overviewItems[this._currentMode].revealAndSelect(false);
},
/**
* @return {WebInspector.TimelineOverviewBase|null}
*/
_createOverviewControl: function()
{
switch (this._currentMode) {
case WebInspector.TimelineOverviewPane.Mode.Events:
return new WebInspector.TimelineEventOverview(this._model);
case WebInspector.TimelineOverviewPane.Mode.Frames:
return new WebInspector.TimelineFrameOverview(this._model);
case WebInspector.TimelineOverviewPane.Mode.Memory:
return new WebInspector.TimelineMemoryOverview(this._model);
}
throw new Error("Invalid overview mode: " + this._currentMode);
},
_onCategoryVisibilityChanged: function(event)
{
this._overviewControl.categoryVisibilityChanged();
},
_update: function()
{
delete this._refreshTimeout;
this._updateWindow();
this._overviewCalculator.setWindow(this._model.minimumRecordTime(), this._model.maximumRecordTime());
this._overviewCalculator.setDisplayWindow(0, this._overviewGrid.clientWidth());
this._overviewControl.update();
this._overviewGrid.updateDividers(this._overviewCalculator);
this._updateEventDividers();
},
_updateEventDividers: function()
{
var records = this._eventDividers;
this._overviewGrid.removeEventDividers();
var dividers = [];
for (var i = 0; i < records.length; ++i) {
var record = records[i];
var positions = this._overviewCalculator.computeBarGraphPercentages(record);
var dividerPosition = Math.round(positions.start * 10);
if (dividers[dividerPosition])
continue;
var divider = WebInspector.TimelinePresentationModel.createEventDivider(record.type);
divider.style.left = positions.start + "%";
dividers[dividerPosition] = divider;
}
this._overviewGrid.addEventDividers(dividers);
},
/**
* @param {number} width
*/
sidebarResized: function(width)
{
this._overviewGrid.element.style.left = width + "px";
this._topPaneSidebarElement.style.width = width + "px";
this._update();
},
/**
* @param {WebInspector.TimelineFrame} frame
*/
addFrame: function(frame)
{
this._overviewControl.addFrame(frame);
this._scheduleRefresh();
},
/**
* @param {WebInspector.TimelineFrame} frame
*/
zoomToFrame: function(frame)
{
var frameOverview = /** @type WebInspector.TimelineFrameOverview */ (this._overviewControl);
var window = frameOverview.framePosition(frame);
if (!window)
return;
this._overviewGrid.setWindowPosition(window.start, window.end);
},
_onRecordAdded: function(event)
{
var record = event.data;
var eventDividers = this._eventDividers;
function addEventDividers(record)
{
if (WebInspector.TimelinePresentationModel.isEventDivider(record))
eventDividers.push(record);
}
WebInspector.TimelinePresentationModel.forAllRecords([record], addEventDividers);
this._scheduleRefresh();
},
_reset: function()
{
this._windowStartTime = 0;
this._windowEndTime = Infinity;
this._overviewCalculator.reset();
this._overviewGrid.reset();
this._overviewGrid.setResizeEnabled(false);
this._eventDividers = [];
this._overviewGrid.updateDividers(this._overviewCalculator);
this._overviewControl.reset();
this._update();
},
windowStartTime: function()
{
return this._windowStartTime || this._model.minimumRecordTime();
},
windowEndTime: function()
{
return this._windowEndTime < Infinity ? this._windowEndTime : this._model.maximumRecordTime();
},
windowLeft: function()
{
return this._overviewGrid.windowLeft();
},
windowRight: function()
{
return this._overviewGrid.windowRight();
},
_onWindowChanged: function()
{
if (this._ignoreWindowChangedEvent)
return;
var times = this._overviewControl.windowTimes(this.windowLeft(), this.windowRight());
this._windowStartTime = times.startTime;
this._windowEndTime = times.endTime;
this.dispatchEventToListeners(WebInspector.TimelineOverviewPane.Events.WindowChanged);
},
/**
* @param {Number} startTime
* @param {Number} endTime
*/
setWindowTimes: function(startTime, endTime)
{
this._windowStartTime = startTime;
this._windowEndTime = endTime;
this._updateWindow();
},
_updateWindow: function()
{
var windowBoundaries = this._overviewControl.windowBoundaries(this._windowStartTime, this._windowEndTime);
this._ignoreWindowChangedEvent = true;
this._overviewGrid.setWindow(windowBoundaries.left, windowBoundaries.right);
this._overviewGrid.setResizeEnabled(this._model.records.length);
this._ignoreWindowChangedEvent = false;
},
_scheduleRefresh: function()
{
if (this._refreshTimeout)
return;
if (!this.isShowing())
return;
this._refreshTimeout = setTimeout(this._update.bind(this), 300);
},
__proto__: WebInspector.View.prototype
}
/**
* @constructor
* @implements {WebInspector.TimelineGrid.Calculator}
*/
WebInspector.TimelineOverviewCalculator = function()
{
}
WebInspector.TimelineOverviewCalculator.prototype = {
/**
* @param {number} time
*/
computePosition: function(time)
{
return (time - this._minimumBoundary) / this.boundarySpan() * this._workingArea + this.paddingLeft;
},
computeBarGraphPercentages: function(record)
{
var start = (WebInspector.TimelineModel.startTimeInSeconds(record) - this._minimumBoundary) / this.boundarySpan() * 100;
var end = (WebInspector.TimelineModel.endTimeInSeconds(record) - this._minimumBoundary) / this.boundarySpan() * 100;
return {start: start, end: end};
},
/**
* @param {number=} minimum
* @param {number=} maximum
*/
setWindow: function(minimum, maximum)
{
this._minimumBoundary = minimum >= 0 ? minimum : undefined;
this._maximumBoundary = maximum >= 0 ? maximum : undefined;
},
/**
* @param {number} paddingLeft
* @param {number} clientWidth
*/
setDisplayWindow: function(paddingLeft, clientWidth)
{
this._workingArea = clientWidth - paddingLeft;
this.paddingLeft = paddingLeft;
},
reset: function()
{
this.setWindow();
},
formatTime: function(value)
{
return Number.secondsToString(value);
},
maximumBoundary: function()
{
return this._maximumBoundary;
},
minimumBoundary: function()
{
return this._minimumBoundary;
},
zeroTime: function()
{
return this._minimumBoundary;
},
boundarySpan: function()
{
return this._maximumBoundary - this._minimumBoundary;
}
}
/**
* @constructor
* @extends {WebInspector.View}
* @param {WebInspector.TimelineModel} model
*/
WebInspector.TimelineOverviewBase = function(model)
{
WebInspector.View.call(this);
this.element.classList.add("fill");
this._model = model;
this._canvas = this.element.createChild("canvas", "fill");
this._context = this._canvas.getContext("2d");
}
WebInspector.TimelineOverviewBase.prototype = {
update: function() { },
reset: function() { },
categoryVisibilityChanged: function() { },
/**
* @param {WebInspector.TimelineFrame} frame
*/
addFrame: function(frame) { },
/**
* @param {number} windowLeft
* @param {number} windowRight
*/
windowTimes: function(windowLeft, windowRight)
{
var absoluteMin = this._model.minimumRecordTime();
var timeSpan = this._model.maximumRecordTime() - absoluteMin;
return {
startTime: absoluteMin + timeSpan * windowLeft,
endTime: absoluteMin + timeSpan * windowRight
};
},
/**
* @param {number} startTime
* @param {number} endTime
*/
windowBoundaries: function(startTime, endTime)
{
var absoluteMin = this._model.minimumRecordTime();
var timeSpan = this._model.maximumRecordTime() - absoluteMin;
var haveRecords = absoluteMin >= 0;
return {
left: haveRecords && startTime ? Math.min((startTime - absoluteMin) / timeSpan, 1) : 0,
right: haveRecords && endTime < Infinity ? (endTime - absoluteMin) / timeSpan : 1
}
},
_resetCanvas: function()
{
this._canvas.width = this.element.clientWidth * window.devicePixelRatio;
this._canvas.height = this.element.clientHeight * window.devicePixelRatio;
},
__proto__: WebInspector.View.prototype
}
/**
* @constructor
* @extends {WebInspector.TimelineOverviewBase}
* @param {WebInspector.TimelineModel} model
*/
WebInspector.TimelineMemoryOverview = function(model)
{
WebInspector.TimelineOverviewBase.call(this, model);
this.element.id = "timeline-overview-memory";
this._maxHeapSizeLabel = this.element.createChild("div", "max memory-graph-label");
this._minHeapSizeLabel = this.element.createChild("div", "min memory-graph-label");
}
WebInspector.TimelineMemoryOverview.prototype = {
update: function()
{
this._resetCanvas();
var records = this._model.records;
if (!records.length)
return;
const lowerOffset = 3;
var maxUsedHeapSize = 0;
var minUsedHeapSize = 100000000000;
var minTime = this._model.minimumRecordTime();
var maxTime = this._model.maximumRecordTime();
WebInspector.TimelinePresentationModel.forAllRecords(records, function(r) {
maxUsedHeapSize = Math.max(maxUsedHeapSize, r.usedHeapSize || maxUsedHeapSize);
minUsedHeapSize = Math.min(minUsedHeapSize, r.usedHeapSize || minUsedHeapSize);
});
minUsedHeapSize = Math.min(minUsedHeapSize, maxUsedHeapSize);
var width = this._canvas.width;
var height = this._canvas.height - lowerOffset;
var xFactor = width / (maxTime - minTime);
var yFactor = height / Math.max(maxUsedHeapSize - minUsedHeapSize, 1);
var histogram = new Array(width);
WebInspector.TimelinePresentationModel.forAllRecords(records, function(r) {
if (!r.usedHeapSize)
return;
var x = Math.round((WebInspector.TimelineModel.endTimeInSeconds(r) - minTime) * xFactor);
var y = Math.round((r.usedHeapSize - minUsedHeapSize) * yFactor);
histogram[x] = Math.max(histogram[x] || 0, y);
});
height++; // +1 so that the border always fit into the canvas area.
var y = 0;
var isFirstPoint = true;
var ctx = this._context;
ctx.beginPath();
ctx.moveTo(0, this._canvas.height);
for (var x = 0; x < histogram.length; x++) {
if (typeof histogram[x] === "undefined")
continue;
if (isFirstPoint) {
isFirstPoint = false;
y = histogram[x];
ctx.lineTo(0, height - y);
}
ctx.lineTo(x, height - y);
y = histogram[x];
ctx.lineTo(x, height - y);
}
ctx.lineTo(width, height - y);
ctx.lineTo(width, this._canvas.height);
ctx.lineTo(0, this._canvas.height);
ctx.closePath();
ctx.lineWidth = 0.5;
ctx.strokeStyle = "rgba(20,0,0,0.8)";
ctx.stroke();
ctx.fillStyle = "rgba(214,225,254, 0.8);";
ctx.fill();
this._maxHeapSizeLabel.textContent = Number.bytesToString(maxUsedHeapSize);
this._minHeapSizeLabel.textContent = Number.bytesToString(minUsedHeapSize);
},
__proto__: WebInspector.TimelineOverviewBase.prototype
}
/**
* @constructor
* @extends {WebInspector.TimelineOverviewBase}
* @param {WebInspector.TimelineModel} model
*/
WebInspector.TimelineEventOverview = function(model)
{
WebInspector.TimelineOverviewBase.call(this, model);
this.element.id = "timeline-overview-events";
this._fillStyles = {};
var categories = WebInspector.TimelinePresentationModel.categories();
for (var category in categories)
this._fillStyles[category] = WebInspector.TimelinePresentationModel.createFillStyleForCategory(this._context, 0, WebInspector.TimelineEventOverview._stripGradientHeight, categories[category]);
this._disabledCategoryFillStyle = WebInspector.TimelinePresentationModel.createFillStyle(this._context, 0, WebInspector.TimelineEventOverview._stripGradientHeight,
"rgb(218, 218, 218)", "rgb(170, 170, 170)", "rgb(143, 143, 143)");
this._disabledCategoryBorderStyle = "rgb(143, 143, 143)";
}
/** @const */
WebInspector.TimelineEventOverview._numberOfStrips = 3;
/** @const */
WebInspector.TimelineEventOverview._stripGradientHeight = 120;
WebInspector.TimelineEventOverview.prototype = {
update: function()
{
this._resetCanvas();
var stripHeight = Math.round(this._canvas.height / WebInspector.TimelineEventOverview._numberOfStrips);
var timeOffset = this._model.minimumRecordTime();
var timeSpan = this._model.maximumRecordTime() - timeOffset;
var scale = this._canvas.width / timeSpan;
var lastBarByGroup = [];
this._context.fillStyle = "rgba(0, 0, 0, 0.05)";
for (var i = 1; i < WebInspector.TimelineEventOverview._numberOfStrips; i += 2)
this._context.fillRect(0.5, i * stripHeight + 0.5, this._canvas.width, stripHeight);
function appendRecord(record)
{
if (record.type === WebInspector.TimelineModel.RecordType.BeginFrame)
return;
var recordStart = Math.floor((WebInspector.TimelineModel.startTimeInSeconds(record) - timeOffset) * scale);
var recordEnd = Math.ceil((WebInspector.TimelineModel.endTimeInSeconds(record) - timeOffset) * scale);
var category = WebInspector.TimelinePresentationModel.categoryForRecord(record);
if (category.overviewStripGroupIndex < 0)
return;
var bar = lastBarByGroup[category.overviewStripGroupIndex];
// This bar may be merged with previous -- so just adjust the previous bar.
const barsMergeThreshold = 2;
if (bar && bar.category === category && bar.end + barsMergeThreshold >= recordStart) {
if (recordEnd > bar.end)
bar.end = recordEnd;
return;
}
if (bar)
this._renderBar(bar.start, bar.end, stripHeight, bar.category);
lastBarByGroup[category.overviewStripGroupIndex] = { start: recordStart, end: recordEnd, category: category };
}
WebInspector.TimelinePresentationModel.forAllRecords(this._model.records, appendRecord.bind(this));
for (var i = 0; i < lastBarByGroup.length; ++i) {
if (lastBarByGroup[i])
this._renderBar(lastBarByGroup[i].start, lastBarByGroup[i].end, stripHeight, lastBarByGroup[i].category);
}
},
categoryVisibilityChanged: function()
{
this.update();
},
/**
* @param {number} begin
* @param {number} end
* @param {number} height
* @param {WebInspector.TimelineCategory} category
*/
_renderBar: function(begin, end, height, category)
{
const stripPadding = 4 * window.devicePixelRatio;
const innerStripHeight = height - 2 * stripPadding;
var x = begin + 0.5;
var y = category.overviewStripGroupIndex * height + stripPadding + 0.5;
var width = Math.max(end - begin, 1);
this._context.save();
this._context.translate(x, y);
this._context.scale(1, innerStripHeight / WebInspector.TimelineEventOverview._stripGradientHeight);
this._context.fillStyle = category.hidden ? this._disabledCategoryFillStyle : this._fillStyles[category.name];
this._context.fillRect(0, 0, width, WebInspector.TimelineEventOverview._stripGradientHeight);
this._context.strokeStyle = category.hidden ? this._disabledCategoryBorderStyle : category.borderColor;
this._context.strokeRect(0, 0, width, WebInspector.TimelineEventOverview._stripGradientHeight);
this._context.restore();
},
__proto__: WebInspector.TimelineOverviewBase.prototype
}
/**
* @constructor
* @extends {WebInspector.TimelineOverviewBase}
* @param {WebInspector.TimelineModel} model
*/
WebInspector.TimelineFrameOverview = function(model)
{
WebInspector.TimelineOverviewBase.call(this, model);
this.element.id = "timeline-overview-frames";
this.reset();
this._outerPadding = 4 * window.devicePixelRatio;
this._maxInnerBarWidth = 10 * window.devicePixelRatio;
// The below two are really computed by update() -- but let's have something so that windowTimes() is happy.
this._actualPadding = 5 * window.devicePixelRatio;
this._actualOuterBarWidth = this._maxInnerBarWidth + this._actualPadding;
this._fillStyles = {};
var categories = WebInspector.TimelinePresentationModel.categories();
for (var category in categories)
this._fillStyles[category] = WebInspector.TimelinePresentationModel.createFillStyleForCategory(this._context, this._maxInnerBarWidth, 0, categories[category]);
}
WebInspector.TimelineFrameOverview.prototype = {
reset: function()
{
this._recordsPerBar = 1;
/** @type {!Array.<{startTime:number, endTime:number}>} */
this._barTimes = [];
this._frames = [];
},
update: function()
{
const minBarWidth = 4 * window.devicePixelRatio;
this._resetCanvas();
this._framesPerBar = Math.max(1, this._frames.length * minBarWidth / this._canvas.width);
this._barTimes = [];
var visibleFrames = this._aggregateFrames(this._framesPerBar);
const paddingTop = 4 * window.devicePixelRatio;
// Optimize appearance for 30fps. However, if at least half frames won't fit at this scale,
// fall back to using autoscale.
const targetFPS = 30;
var fullBarLength = 1.0 / targetFPS;
if (fullBarLength < this._medianFrameLength)
fullBarLength = Math.min(this._medianFrameLength * 2, this._maxFrameLength);
var scale = (this._canvas.height - paddingTop) / fullBarLength;
this._renderBars(visibleFrames, scale);
},
/**
* @param {WebInspector.TimelineFrame} frame
*/
addFrame: function(frame)
{
this._frames.push(frame);
},
framePosition: function(frame)
{
var frameNumber = this._frames.indexOf(frame);
if (frameNumber < 0)
return;
var barNumber = Math.floor(frameNumber / this._framesPerBar);
var firstBar = this._framesPerBar > 1 ? barNumber : Math.max(barNumber - 1, 0);
var lastBar = this._framesPerBar > 1 ? barNumber : Math.min(barNumber + 1, this._barTimes.length - 1);
return {
start: Math.ceil(this._barNumberToScreenPosition(firstBar) - this._actualPadding / 2),
end: Math.floor(this._barNumberToScreenPosition(lastBar + 1) - this._actualPadding / 2)
}
},
/**
* @param {number} framesPerBar
*/
_aggregateFrames: function(framesPerBar)
{
var visibleFrames = [];
var durations = [];
this._maxFrameLength = 0;
for (var barNumber = 0, currentFrame = 0; currentFrame < this._frames.length; ++barNumber) {
var barStartTime = this._frames[currentFrame].startTime;
var longestFrame = null;
for (var lastFrame = Math.min(Math.floor((barNumber + 1) * framesPerBar), this._frames.length);
currentFrame < lastFrame; ++currentFrame) {
if (!longestFrame || longestFrame.duration < this._frames[currentFrame].duration)
longestFrame = this._frames[currentFrame];
}
var barEndTime = this._frames[currentFrame - 1].endTime;
if (longestFrame) {
this._maxFrameLength = Math.max(this._maxFrameLength, longestFrame.duration);
visibleFrames.push(longestFrame);
this._barTimes.push({ startTime: barStartTime, endTime: barEndTime });
durations.push(longestFrame.duration);
}
}
this._medianFrameLength = durations.qselect(Math.floor(durations.length / 2));
return visibleFrames;
},
/**
* @param {Array.<WebInspector.TimelineFrame>} frames
* @param {number} scale
*/
_renderBars: function(frames, scale)
{
const maxPadding = 5 * window.devicePixelRatio;
this._actualOuterBarWidth = Math.min((this._canvas.width - 2 * this._outerPadding) / frames.length, this._maxInnerBarWidth + maxPadding);
this._actualPadding = Math.min(Math.floor(this._actualOuterBarWidth / 3), maxPadding);
var barWidth = this._actualOuterBarWidth - this._actualPadding;
for (var i = 0; i < frames.length; ++i)
this._renderBar(this._barNumberToScreenPosition(i), barWidth, frames[i], scale);
this._drawFPSMarks(scale);
},
/**
* @param {number} n
*/
_barNumberToScreenPosition: function(n)
{
return this._outerPadding + this._actualOuterBarWidth * n;
},
/**
* @param {number} scale
*/
_drawFPSMarks: function(scale)
{
const fpsMarks = [30, 60];
this._context.save();
this._context.beginPath();
this._context.font = (10 * window.devicePixelRatio) + "px " + window.getComputedStyle(this.element, null).getPropertyValue("font-family");
this._context.textAlign = "right";
this._context.textBaseline = "alphabetic";
const labelPadding = 4 * window.devicePixelRatio;
const baselineHeight = 3 * window.devicePixelRatio;
var lineHeight = 12 * window.devicePixelRatio;
var labelTopMargin = 0;
var labelOffsetY = 0; // Labels are going to be under their grid lines.
for (var i = 0; i < fpsMarks.length; ++i) {
var fps = fpsMarks[i];
// Draw lines one pixel above they need to be, so 60pfs line does not cross most of the frames tops.
var y = this._canvas.height - Math.floor(1.0 / fps * scale) - 0.5;
var label = WebInspector.UIString("%d\u2009fps", fps);
var labelWidth = this._context.measureText(label).width + 2 * labelPadding;
var labelX = this._canvas.width;
if (!i && labelTopMargin < y - lineHeight)
labelOffsetY = -lineHeight; // Labels are going to be over their grid lines.
var labelY = y + labelOffsetY;
if (labelY < labelTopMargin || labelY + lineHeight > this._canvas.height)
break; // No space for the label, so no line as well.
this._context.moveTo(0, y);
this._context.lineTo(this._canvas.width, y);
this._context.fillStyle = "rgba(255, 255, 255, 0.5)";
this._context.fillRect(labelX - labelWidth, labelY, labelWidth, lineHeight);
this._context.fillStyle = "black";
this._context.fillText(label, labelX - labelPadding, labelY + lineHeight - baselineHeight);
labelTopMargin = labelY + lineHeight;
}
this._context.strokeStyle = "rgba(128, 128, 128, 0.5)";
this._context.stroke();
this._context.restore();
},
_renderBar: function(left, width, frame, scale)
{
var categories = Object.keys(WebInspector.TimelinePresentationModel.categories());
if (!categories.length)
return;
var x = Math.floor(left) + 0.5;
width = Math.floor(width);
for (var i = 0, bottomOffset = this._canvas.height; i < categories.length; ++i) {
var category = categories[i];
var duration = frame.timeByCategory[category];
if (!duration)
continue;
var height = duration * scale;
var y = Math.floor(bottomOffset - height) + 0.5;
this._context.save();
this._context.translate(x, 0);
this._context.scale(width / this._maxInnerBarWidth, 1);
this._context.fillStyle = this._fillStyles[category];
this._context.fillRect(0, y, this._maxInnerBarWidth, Math.floor(height));
this._context.strokeStyle = WebInspector.TimelinePresentationModel.categories()[category].borderColor;
this._context.beginPath();
this._context.moveTo(0, y);
this._context.lineTo(this._maxInnerBarWidth, y);
this._context.stroke();
this._context.restore();
bottomOffset -= height - 1;
}
// Draw a contour for the total frame time.
var y0 = Math.floor(this._canvas.height - frame.duration * scale) + 0.5;
var y1 = this._canvas.height + 0.5;
this._context.strokeStyle = "rgba(90, 90, 90, 0.3)";
this._context.beginPath();
this._context.moveTo(x, y1);
this._context.lineTo(x, y0);
this._context.lineTo(x + width, y0);
this._context.lineTo(x + width, y1);
this._context.stroke();
},
/**
* @param {number} windowLeft
* @param {number} windowRight
*/
windowTimes: function(windowLeft, windowRight)
{
if (!this._barTimes.length)
return WebInspector.TimelineOverviewBase.prototype.windowTimes.call(this, windowLeft, windowRight);
var windowSpan = this._canvas.width;
var leftOffset = windowLeft * windowSpan - this._outerPadding + this._actualPadding;
var rightOffset = windowRight * windowSpan - this._outerPadding;
var firstBar = Math.floor(Math.max(leftOffset, 0) / this._actualOuterBarWidth);
var lastBar = Math.min(Math.floor(rightOffset / this._actualOuterBarWidth), this._barTimes.length - 1);
if (firstBar >= this._barTimes.length)
return {startTime: Infinity, endTime: Infinity};
const snapToRightTolerancePixels = 3;
return {
startTime: this._barTimes[firstBar].startTime,
endTime: (rightOffset + snapToRightTolerancePixels > windowSpan) || (lastBar >= this._barTimes.length) ? Infinity : this._barTimes[lastBar].endTime
}
},
/**
* @param {number} startTime
* @param {number} endTime
*/
windowBoundaries: function(startTime, endTime)
{
/**
* @param {number} time
* @param {{startTime:number, endTime:number}} barTime
* @return {number}
*/
function barStartComparator(time, barTime)
{
return time - barTime.startTime;
}
/**
* @param {number} time
* @param {{startTime:number, endTime:number}} barTime
* @return {number}
*/
function barEndComparator(time, barTime)
{
// We need a frame where time is in [barTime.startTime, barTime.endTime), so exclude exact matches against endTime.
if (time === barTime.endTime)
return 1;
return time - barTime.endTime;
}
return {
left: this._windowBoundaryFromTime(startTime, barEndComparator),
right: this._windowBoundaryFromTime(endTime, barStartComparator)
}
},
/**
* @param {number} time
* @param {function(number, {startTime:number, endTime:number}):number} comparator
*/
_windowBoundaryFromTime: function(time, comparator)
{
if (time === Infinity)
return 1;
var index = this._firstBarAfter(time, comparator);
if (!index)
return 0;
return (this._barNumberToScreenPosition(index) - this._actualPadding / 2) / this._canvas.width;
},
/**
* @param {number} time
* @param {function(number, {startTime:number, endTime:number}):number} comparator
*/
_firstBarAfter: function(time, comparator)
{
return insertionIndexForObjectInListSortedByFunction(time, this._barTimes, comparator);
},
__proto__: WebInspector.TimelineOverviewBase.prototype
}
/**
* @param {WebInspector.TimelineOverviewPane} pane
* @constructor
* @implements {WebInspector.TimelinePresentationModel.Filter}
*/
WebInspector.TimelineWindowFilter = function(pane)
{
this._pane = pane;
}
WebInspector.TimelineWindowFilter.prototype = {
/**
* @param {!WebInspector.TimelinePresentationModel.Record} record
* @return {boolean}
*/
accept: function(record)
{
return record.lastChildEndTime >= this._pane._windowStartTime && record.startTime <= this._pane._windowEndTime;
}
}