occaecatidicta
Version:
1,019 lines (883 loc) • 39.2 kB
JavaScript
/*
* Copyright (C) 2012 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.Object}
* @implements {WebInspector.TimelinePresentationModel.Filter}
*/
WebInspector.TimelineOverviewPane = function(presentationModel)
{
this.element = document.createElement("div");
this.element.id = "timeline-overview-panel";
this._windowStartTime = 0;
this._windowEndTime = Infinity;
this._presentationModel = presentationModel;
this._topPaneSidebarElement = document.createElement("div");
this._topPaneSidebarElement.id = "timeline-overview-sidebar";
if (WebInspector.experimentsSettings.timelineVerticalOverview.isEnabled()) {
this._overviewModeSelector = new WebInspector.TimelineOverviewModeSelector(this._onOverviewModeChanged.bind(this));
this._overviewModeSelector.addButton(WebInspector.UIString("Show each event category as a horizontal strip in overview"),
"timeline-mode-horizontal-bars", WebInspector.TimelineOverviewPane.Mode.EventsHorizontal);
this._overviewModeSelector.addButton(WebInspector.UIString("Show each event as a vertical bar in overview"),
"timeline-mode-vertical-bars", WebInspector.TimelineOverviewPane.Mode.EventsVertical);
}
var overviewTreeElement = document.createElement("ol");
overviewTreeElement.className = "sidebar-tree";
this._topPaneSidebarElement.appendChild(overviewTreeElement);
this.element.appendChild(this._topPaneSidebarElement);
var topPaneSidebarTree = new TreeOutline(overviewTreeElement);
this._timelinesOverviewItem = new WebInspector.SidebarTreeElement("resources-time-graph-sidebar-item", WebInspector.UIString("Timelines"));
if (this._overviewModeSelector)
this._timelinesOverviewItem.statusElement = this._overviewModeSelector.element;
topPaneSidebarTree.appendChild(this._timelinesOverviewItem);
this._timelinesOverviewItem.revealAndSelect(false);
this._timelinesOverviewItem.onselect = this._showTimelines.bind(this);
this._memoryOverviewItem = new WebInspector.SidebarTreeElement("resources-size-graph-sidebar-item", WebInspector.UIString("Memory"));
topPaneSidebarTree.appendChild(this._memoryOverviewItem);
this._memoryOverviewItem.onselect = this._showMemoryGraph.bind(this);
this._currentMode = WebInspector.TimelineOverviewPane.Mode.EventsHorizontal;
this._overviewContainer = this.element.createChild("div", "fill");
this._overviewContainer.id = "timeline-overview-container";
this._overviewGrid = new WebInspector.TimelineGrid();
this._overviewGrid.element.id = "timeline-overview-grid";
this._overviewGrid.itemsGraphsElement.id = "timeline-overview-timelines";
this._overviewContainer.appendChild(this._overviewGrid.element);
this._heapGraph = new WebInspector.HeapGraph();
this._heapGraph.element.id = "timeline-overview-memory";
this._overviewGrid.element.insertBefore(this._heapGraph.element, this._overviewGrid.itemsGraphsElement);
this._overviewWindow = new WebInspector.TimelineOverviewWindow(this._overviewContainer);
this._overviewWindow.addEventListener(WebInspector.TimelineOverviewWindow.Events.WindowChanged, this._onWindowChanged, this);
this._overviewContainer.appendChild(this._overviewGrid.element);
var separatorElement = document.createElement("div");
separatorElement.id = "timeline-overview-separator";
this.element.appendChild(separatorElement);
this._categoryGraphs = {};
var i = 0;
var categories = this._presentationModel.categories;
for (var category in categories) {
var categoryGraph = new WebInspector.TimelineCategoryGraph(categories[category], i++ % 2);
this._categoryGraphs[category] = categoryGraph;
this._overviewGrid.itemsGraphsElement.appendChild(categoryGraph.graphElement);
categories[category].addEventListener(WebInspector.TimelineCategory.Events.VisibilityChanged, this._onCategoryVisibilityChanged, this);
}
this._overviewGrid.setScrollAndDividerTop(0, 0);
this._overviewCalculator = new WebInspector.TimelineOverviewCalculator();
}
WebInspector.TimelineOverviewPane.MinSelectableSize = 12;
WebInspector.TimelineOverviewPane.WindowScrollSpeedFactor = .3;
WebInspector.TimelineOverviewPane.ResizerOffset = 3.5; // half pixel because offset values are not rounded but ceiled
WebInspector.TimelineOverviewPane.Mode = {
EventsVertical: "EventsVertical",
EventsHorizontal: "EventsHorizontal",
Memory: "Memory"
};
WebInspector.TimelineOverviewPane.Events = {
ModeChanged: "ModeChanged",
WindowChanged: "WindowChanged"
};
WebInspector.TimelineOverviewPane.prototype = {
_showTimelines: function()
{
var newMode = this._overviewModeSelector ? this._overviewModeSelector.value : WebInspector.TimelineOverviewPane.Mode.EventsHorizontal;
if (this._currentMode === newMode)
return;
this._currentMode = newMode;
this._timelinesOverviewItem.revealAndSelect(false);
this._heapGraph.hide();
this._setVerticalOverview(this._currentMode === WebInspector.TimelineOverviewPane.Mode.EventsVertical);
this._overviewGrid.itemsGraphsElement.removeStyleClass("hidden");
this._updateCategoryStrips(this._presentationModel.rootRecord().children);
this.dispatchEventToListeners(WebInspector.TimelineOverviewPane.Events.ModeChanged, this._currentMode);
},
_showMemoryGraph: function()
{
this._currentMode = WebInspector.TimelineOverviewPane.Mode.Memory;
this._setVerticalOverview(false);
this._memoryOverviewItem.revealAndSelect(false);
this._heapGraph.show();
this._heapGraph.update(this._presentationModel.rootRecord().children);
this._overviewGrid.itemsGraphsElement.addStyleClass("hidden");
this.dispatchEventToListeners(WebInspector.TimelineOverviewPane.Events.ModeChanged, this._currentMode);
},
_setVerticalOverview: function(enabled)
{
if (!enabled === !this._verticalOverview)
return;
if (enabled) {
this._verticalOverview = new WebInspector.TimelineVerticalOverview();
this._verticalOverview.show(this._overviewContainer);
this._verticalOverview.update(this._presentationModel.rootRecord().children);
} else {
this._verticalOverview.detach();
this._overviewGrid.itemsGraphsElement.removeStyleClass("hidden");
this._verticalOverview = null;
}
},
_onOverviewModeChanged: function()
{
// If we got this while in memory mode, we postpone actual switch until we get to the events mode.
if (this._currentMode === WebInspector.TimelineOverviewPane.Mode.Memory)
return;
this._showTimelines();
},
_onCategoryVisibilityChanged: function(event)
{
var category = event.data;
this._categoryGraphs[category.name].dimmed = category.hidden;
},
update: function(showShortEvents)
{
this._showShortEvents = showShortEvents;
this._overviewCalculator.reset();
function updateBoundaries(record)
{
this._overviewCalculator.updateBoundaries(record);
return false;
}
var records = this._presentationModel.rootRecord().children;
WebInspector.TimelinePanel.forAllRecords(records, updateBoundaries.bind(this));
if (this._heapGraph.visible) {
this._heapGraph.setSize(this._overviewGrid.element.offsetWidth, 60);
this._heapGraph.update(records);
} else if (this._verticalOverview)
this._verticalOverview.update(records);
else
this._updateCategoryStrips(records);
this._overviewGrid.updateDividers(true, this._overviewCalculator);
},
_updateCategoryStrips: function(records)
{
// Clear summary bars.
var timelines = {};
for (var category in this._presentationModel.categories) {
timelines[category] = [];
this._categoryGraphs[category].clearChunks();
}
// Create sparse arrays with 101 cells each to fill with chunks for a given category.
function markPercentagesForRecord(record)
{
if (!(this._showShortEvents || record.isLong()))
return;
var percentages = this._overviewCalculator.computeBarGraphPercentages(record);
var end = Math.round(percentages.end);
var categoryName = record.category.name;
for (var j = Math.round(percentages.start); j <= end; ++j)
timelines[categoryName][j] = true;
}
WebInspector.TimelinePanel.forAllRecords(records, markPercentagesForRecord.bind(this));
// Convert sparse arrays to continuous segments, render graphs for each.
for (var category in this._presentationModel.categories) {
var timeline = timelines[category];
window.timelineSaved = timeline;
var chunkStart = -1;
for (var j = 0; j < 101; ++j) {
if (timeline[j]) {
if (chunkStart === -1)
chunkStart = j;
} else {
if (chunkStart !== -1) {
this._categoryGraphs[category].addChunk(chunkStart, j);
chunkStart = -1;
}
}
}
if (chunkStart !== -1) {
this._categoryGraphs[category].addChunk(chunkStart, 100);
chunkStart = -1;
}
}
},
updateEventDividers: function(records, dividerConstructor)
{
this._overviewGrid.removeEventDividers();
var dividers = [];
for (var i = 0; i < records.length; ++i) {
var record = records[i];
if (record.type === WebInspector.TimelineModel.RecordType.BeginFrame)
continue;
var positions = this._overviewCalculator.computeBarGraphPercentages(record);
var dividerPosition = Math.round(positions.start * 10);
if (dividers[dividerPosition])
continue;
var divider = dividerConstructor(record);
divider.style.left = positions.start + "%";
dividers[dividerPosition] = divider;
}
this._overviewGrid.addEventDividers(dividers);
},
sidebarResized: function(width)
{
this._overviewContainer.style.left = width + "px";
this._topPaneSidebarElement.style.width = width + "px";
},
reset: function()
{
this._windowStartTime = 0;
this._windowEndTime = Infinity;
this._overviewWindow.reset();
this._overviewCalculator.reset();
this._overviewGrid.updateDividers(true, this._overviewCalculator);
if (this._verticalOverview)
this._verticalOverview.reset();
},
scrollWindow: function(event)
{
this._overviewWindow.scrollWindow(event);
},
/**
* @param {WebInspector.TimelinePresentationModel.Record} record
*/
accept: function(record)
{
return record.endTime >= this._windowStartTime && record.startTime <= this._windowEndTime;
},
windowStartTime: function()
{
return this._windowStartTime || this._presentationModel.minimumRecordTime();
},
windowEndTime: function()
{
return this._windowEndTime < Infinity ? this._windowEndTime : this._presentationModel.maximumRecordTime();
},
windowLeft: function()
{
return this._overviewWindow.windowLeft;
},
windowRight: function()
{
return this._overviewWindow.windowRight;
},
_onWindowChanged: function()
{
if (this._verticalOverview) {
var times = this._verticalOverview.getWindowTimes(this.windowLeft(), this.windowRight());
this._windowStartTime = times.startTime;
this._windowEndTime = times.endTime;
} else {
var absoluteMin = this._presentationModel.minimumRecordTime();
var absoluteMax = this._presentationModel.maximumRecordTime();
this._windowStartTime = absoluteMin + (absoluteMax - absoluteMin) * this.windowLeft();
this._windowEndTime = absoluteMin + (absoluteMax - absoluteMin) * this.windowRight();
}
this.dispatchEventToListeners(WebInspector.TimelineOverviewPane.Events.WindowChanged);
}
}
WebInspector.TimelineOverviewPane.prototype.__proto__ = WebInspector.Object.prototype;
/**
* @constructor
* @extends {WebInspector.Object}
* @param {Element} parentElement
*/
WebInspector.TimelineOverviewWindow = function(parentElement)
{
this._parentElement = parentElement;
this.windowLeft = 0.0;
this.windowRight = 1.0;
this._parentElement.addEventListener("mousedown", this._dragWindow.bind(this), true);
this._parentElement.addEventListener("mousewheel", this.scrollWindow.bind(this), true);
this._parentElement.addEventListener("dblclick", this._resizeWindowMaximum.bind(this), true);
this._overviewWindowElement = document.createElement("div");
this._overviewWindowElement.className = "timeline-overview-window";
parentElement.appendChild(this._overviewWindowElement);
this._overviewWindowBordersElement = document.createElement("div");
this._overviewWindowBordersElement.className = "timeline-overview-window-rulers";
parentElement.appendChild(this._overviewWindowBordersElement);
var overviewDividersBackground = document.createElement("div");
overviewDividersBackground.className = "timeline-overview-dividers-background";
parentElement.appendChild(overviewDividersBackground);
this._leftResizeElement = document.createElement("div");
this._leftResizeElement.className = "timeline-window-resizer";
this._leftResizeElement.style.left = 0;
parentElement.appendChild(this._leftResizeElement);
this._rightResizeElement = document.createElement("div");
this._rightResizeElement.className = "timeline-window-resizer timeline-window-resizer-right";
this._rightResizeElement.style.right = 0;
parentElement.appendChild(this._rightResizeElement);
}
WebInspector.TimelineOverviewWindow.Events = {
WindowChanged: "WindowChanged"
}
WebInspector.TimelineOverviewWindow.prototype = {
reset: function()
{
this.windowLeft = 0.0;
this.windowRight = 1.0;
this._overviewWindowElement.style.left = "0%";
this._overviewWindowElement.style.width = "100%";
this._overviewWindowBordersElement.style.left = "0%";
this._overviewWindowBordersElement.style.right = "0%";
this._leftResizeElement.style.left = "0%";
this._rightResizeElement.style.left = "100%";
},
_resizeWindow: function(resizeElement, event)
{
WebInspector.elementDragStart(resizeElement, this._windowResizeDragging.bind(this, resizeElement), this._endWindowDragging.bind(this), event, "ew-resize");
},
_windowResizeDragging: function(resizeElement, event)
{
if (resizeElement === this._leftResizeElement)
this._resizeWindowLeft(event.pageX - this._parentElement.offsetLeft);
else
this._resizeWindowRight(event.pageX - this._parentElement.offsetLeft);
event.preventDefault();
},
_dragWindow: function(event)
{
var node = event.target;
while (node) {
if (node.hasStyleClass("resources-dividers-label-bar")) {
WebInspector.elementDragStart(this._overviewWindowElement, this._windowDragging.bind(this, event.pageX,
this._leftResizeElement.offsetLeft + WebInspector.TimelineOverviewPane.ResizerOffset, this._rightResizeElement.offsetLeft + WebInspector.TimelineOverviewPane.ResizerOffset), this._endWindowDragging.bind(this), event, "ew-resize");
break;
} else if (node === this._parentElement) {
var position = event.pageX - this._parentElement.offsetLeft;
this._overviewWindowSelector = new WebInspector.TimelineOverviewPane.WindowSelector(this._parentElement, position);
WebInspector.elementDragStart(null, this._windowSelectorDragging.bind(this), this._endWindowSelectorDragging.bind(this), event, "ew-resize");
break;
} else if (node === this._leftResizeElement || node === this._rightResizeElement) {
this._resizeWindow(node, event);
break;
}
node = node.parentNode;
}
},
_windowSelectorDragging: function(event)
{
this._overviewWindowSelector._updatePosition(event.pageX - this._parentElement.offsetLeft);
event.preventDefault();
},
_endWindowSelectorDragging: function(event)
{
WebInspector.elementDragEnd(event);
var window = this._overviewWindowSelector._close(event.pageX - this._parentElement.offsetLeft);
delete this._overviewWindowSelector;
if (window.end - window.start < WebInspector.TimelineOverviewPane.MinSelectableSize) {
if (this._parentElement.clientWidth - window.end > WebInspector.TimelineOverviewPane.MinSelectableSize)
window.end = window.start + WebInspector.TimelineOverviewPane.MinSelectableSize;
else
window.start = window.end - WebInspector.TimelineOverviewPane.MinSelectableSize;
}
this._setWindowPosition(window.start, window.end);
},
_windowDragging: function(startX, windowLeft, windowRight, event)
{
var delta = event.pageX - startX;
var start = windowLeft + delta;
var end = windowRight + delta;
var windowSize = windowRight - windowLeft;
if (start < 0) {
start = 0;
end = windowSize;
}
if (end > this._parentElement.clientWidth) {
end = this._parentElement.clientWidth;
start = end - windowSize;
}
this._setWindowPosition(start, end);
event.preventDefault();
},
_resizeWindowLeft: function(start)
{
// Glue to edge.
if (start < 10)
start = 0;
else if (start > this._rightResizeElement.offsetLeft - 4)
start = this._rightResizeElement.offsetLeft - 4;
this._setWindowPosition(start, null);
},
_resizeWindowRight: function(end)
{
// Glue to edge.
if (end > this._parentElement.clientWidth - 10)
end = this._parentElement.clientWidth;
else if (end < this._leftResizeElement.offsetLeft + WebInspector.TimelineOverviewPane.MinSelectableSize)
end = this._leftResizeElement.offsetLeft + WebInspector.TimelineOverviewPane.MinSelectableSize;
this._setWindowPosition(null, end);
},
_resizeWindowMaximum: function()
{
this._setWindowPosition(0, this._parentElement.clientWidth);
},
_setWindowPosition: function(start, end)
{
var clientWidth = this._parentElement.clientWidth;
const rulerAdjustment = 1 / clientWidth;
if (typeof start === "number") {
this.windowLeft = start / clientWidth;
this._leftResizeElement.style.left = this.windowLeft * 100 + "%";
this._overviewWindowElement.style.left = this.windowLeft * 100 + "%";
this._overviewWindowBordersElement.style.left = (this.windowLeft - rulerAdjustment) * 100 + "%";
}
if (typeof end === "number") {
this.windowRight = end / clientWidth;
this._rightResizeElement.style.left = this.windowRight * 100 + "%";
}
this._overviewWindowElement.style.width = (this.windowRight - this.windowLeft) * 100 + "%";
this._overviewWindowBordersElement.style.right = (1 - this.windowRight + 2 * rulerAdjustment) * 100 + "%";
this.dispatchEventToListeners(WebInspector.TimelineOverviewWindow.Events.WindowChanged);
},
_endWindowDragging: function(event)
{
WebInspector.elementDragEnd(event);
},
scrollWindow: function(event)
{
if (typeof event.wheelDeltaX === "number" && event.wheelDeltaX !== 0) {
this._windowDragging(event.pageX + Math.round(event.wheelDeltaX * WebInspector.TimelineOverviewPane.WindowScrollSpeedFactor),
this._leftResizeElement.offsetLeft + WebInspector.TimelineOverviewPane.ResizerOffset,
this._rightResizeElement.offsetLeft + WebInspector.TimelineOverviewPane.ResizerOffset,
event);
}
}
}
WebInspector.TimelineOverviewWindow.prototype.__proto__ = WebInspector.Object.prototype;
/**
* @constructor
*/
WebInspector.TimelineOverviewCalculator = function()
{
}
WebInspector.TimelineOverviewCalculator.prototype = {
computeBarGraphPercentages: function(record)
{
var start = (record.startTime - this.minimumBoundary) / this.boundarySpan * 100;
var end = (record.endTime - this.minimumBoundary) / this.boundarySpan * 100;
return {start: start, end: end};
},
reset: function()
{
delete this.minimumBoundary;
delete this.maximumBoundary;
},
updateBoundaries: function(record)
{
var result = false;
if (typeof this.minimumBoundary === "undefined" || record.startTime < this.minimumBoundary) {
this.minimumBoundary = record.startTime;
result = true;
}
if (typeof this.maximumBoundary === "undefined" || record.endTime > this.maximumBoundary) {
this.maximumBoundary = record.endTime;
result = true;
}
return result;
},
get boundarySpan()
{
return this.maximumBoundary - this.minimumBoundary;
},
formatTime: function(value)
{
return Number.secondsToString(value);
}
}
/**
* @constructor
*/
WebInspector.TimelineCategoryGraph = function(category, isEven)
{
this._category = category;
this._graphElement = document.createElement("div");
this._graphElement.className = "timeline-graph-side timeline-overview-graph-side" + (isEven ? " even" : "");
this._barAreaElement = document.createElement("div");
this._barAreaElement.className = "timeline-graph-bar-area timeline-category-" + category.name;
this._graphElement.appendChild(this._barAreaElement);
}
WebInspector.TimelineCategoryGraph.prototype = {
get graphElement()
{
return this._graphElement;
},
addChunk: function(start, end)
{
var chunk = document.createElement("div");
chunk.className = "timeline-graph-bar";
this._barAreaElement.appendChild(chunk);
chunk.style.setProperty("left", start + "%");
chunk.style.setProperty("width", (end - start) + "%");
},
clearChunks: function()
{
this._barAreaElement.removeChildren();
},
set dimmed(dimmed)
{
if (dimmed)
this._barAreaElement.removeStyleClass("timeline-category-" + this._category.name);
else
this._barAreaElement.addStyleClass("timeline-category-" + this._category.name);
}
}
/**
* @constructor
*/
WebInspector.TimelineOverviewPane.WindowSelector = function(parent, position)
{
this._startPosition = position;
this._width = parent.offsetWidth;
this._windowSelector = document.createElement("div");
this._windowSelector.className = "timeline-window-selector";
this._windowSelector.style.left = this._startPosition + "px";
this._windowSelector.style.right = this._width - this._startPosition + + "px";
parent.appendChild(this._windowSelector);
}
WebInspector.TimelineOverviewPane.WindowSelector.prototype = {
_createSelectorElement: function(parent, left, width, height)
{
var selectorElement = document.createElement("div");
selectorElement.className = "timeline-window-selector";
selectorElement.style.left = left + "px";
selectorElement.style.width = width + "px";
selectorElement.style.top = "0px";
selectorElement.style.height = height + "px";
parent.appendChild(selectorElement);
return selectorElement;
},
_close: function(position)
{
position = Math.max(0, Math.min(position, this._width));
this._windowSelector.parentNode.removeChild(this._windowSelector);
return this._startPosition < position ? {start: this._startPosition, end: position} : {start: position, end: this._startPosition};
},
_updatePosition: function(position)
{
position = Math.max(0, Math.min(position, this._width));
if (position < this._startPosition) {
this._windowSelector.style.left = position + "px";
this._windowSelector.style.right = this._width - this._startPosition + "px";
} else {
this._windowSelector.style.left = this._startPosition + "px";
this._windowSelector.style.right = this._width - position + "px";
}
}
}
/**
* @constructor
*/
WebInspector.HeapGraph = function() {
this._canvas = document.createElement("canvas");
this._maxHeapSizeLabel = document.createElement("div");
this._maxHeapSizeLabel.addStyleClass("max");
this._maxHeapSizeLabel.addStyleClass("memory-graph-label");
this._minHeapSizeLabel = document.createElement("div");
this._minHeapSizeLabel.addStyleClass("min");
this._minHeapSizeLabel.addStyleClass("memory-graph-label");
this._element = document.createElement("div");
this._element.addStyleClass("hidden");
this._element.appendChild(this._canvas);
this._element.appendChild(this._maxHeapSizeLabel);
this._element.appendChild(this._minHeapSizeLabel);
}
WebInspector.HeapGraph.prototype = {
get element() {
// return this._canvas;
return this._element;
},
get visible() {
return !this.element.hasStyleClass("hidden");
},
show: function() {
this.element.removeStyleClass("hidden");
},
hide: function() {
this.element.addStyleClass("hidden");
},
setSize: function(w, h) {
this._canvas.width = w;
this._canvas.height = h - 5;
},
update: function(records)
{
if (!records.length)
return;
const lowerOffset = 3;
var maxUsedHeapSize = 0;
var minUsedHeapSize = 100000000000;
var minTime;
var maxTime;
WebInspector.TimelinePanel.forAllRecords(records, function(r) {
maxUsedHeapSize = Math.max(maxUsedHeapSize, r.usedHeapSize || maxUsedHeapSize);
minUsedHeapSize = Math.min(minUsedHeapSize, r.usedHeapSize || minUsedHeapSize);
if (typeof minTime === "undefined" || r.startTime < minTime)
minTime = r.startTime;
if (typeof maxTime === "undefined" || r.endTime > maxTime)
maxTime = r.endTime;
});
minUsedHeapSize = Math.min(minUsedHeapSize, maxUsedHeapSize);
var width = this._canvas.width;
var height = this._canvas.height - lowerOffset;
var xFactor = width / (maxTime - minTime);
var yFactor = height / (maxUsedHeapSize - minUsedHeapSize);
var histogram = new Array(width);
WebInspector.TimelinePanel.forAllRecords(records, function(r) {
if (!r.usedHeapSize)
return;
var x = Math.round((r.endTime - minTime) * xFactor);
var y = Math.round((r.usedHeapSize - minUsedHeapSize) * yFactor);
histogram[x] = Math.max(histogram[x] || 0, y);
});
var ctx = this._canvas.getContext("2d");
this._clear(ctx);
// +1 so that the border always fit into the canvas area.
height = height + 1;
ctx.beginPath();
var initialY = 0;
for (var k = 0; k < histogram.length; k++) {
if (histogram[k]) {
initialY = histogram[k];
break;
}
}
ctx.moveTo(0, height - initialY);
for (var x = 0; x < histogram.length; x++) {
if (!histogram[x])
continue;
ctx.lineTo(x, height - histogram[x]);
}
ctx.lineWidth = 0.5;
ctx.strokeStyle = "rgba(20,0,0,0.8)";
ctx.stroke();
ctx.fillStyle = "rgba(214,225,254, 0.8);";
ctx.lineTo(width, 60);
ctx.lineTo(0, 60);
ctx.lineTo(0, height - initialY);
ctx.fill();
ctx.closePath();
this._maxHeapSizeLabel.textContent = Number.bytesToString(maxUsedHeapSize);
this._minHeapSizeLabel.textContent = Number.bytesToString(minUsedHeapSize);
},
_clear: function(ctx) {
ctx.fillStyle = "rgba(255,255,255,0.8)";
ctx.fillRect(0, 0, this._canvas.width, this._canvas.height);
},
}
/**
* @constructor
* @extends {WebInspector.View}
*/
WebInspector.TimelineVerticalOverview = function() {
WebInspector.View.call(this);
this.element = document.createElement("div");
this.element.className = "timeline-vertical-overview-bars fill";
this.reset();
}
WebInspector.TimelineVerticalOverview.prototype = {
reset: function()
{
this._recordsPerBar = 1;
this._frameMode = false;
this._barTimes = [];
this._longestBarTime = 0;
},
update: function(allRecords)
{
var records = [];
var frameCount = 0;
for (var i = 0; i < allRecords.length; ++i) {
var record = allRecords[i];
if (record.category.hidden)
continue;
if (record.type === WebInspector.TimelineModel.RecordType.BeginFrame || (frameCount && (i + 1 === records.length)))
++frameCount;
records.push(record);
}
// If we have frames, aggregate by frames; otherwise, just show top-level records.
var recordCount = frameCount || records.length;
const minBarWidth = 4;
this._recordsPerBar = Math.max(1, recordCount * minBarWidth / this.element.clientWidth);
var numberOfBars = Math.ceil(recordCount / this._recordsPerBar);
this._barTimes = [];
this._longestBarTime = 0;
this.element.removeChildren();
var padding = this.element.createChild("div", "padding");
var statistics = frameCount ? this._aggregateFrames(records, numberOfBars) : this._aggregateRecords(records, numberOfBars);
const paddingTop = 4;
var scale = (this.element.clientHeight - paddingTop) / this._longestBarTime;
for (var i = 0; i < statistics.length; ++i)
this.element.insertBefore(this._buildBar(statistics[i], scale), padding);
},
_aggregateFrames: function(records, numberOfBars)
{
var statistics = [];
for (var barNumber = 0, currentRecord = 0, currentFrame = 0;
barNumber < numberOfBars && currentRecord < records.length; ++barNumber) {
var lastFrame = Math.floor((barNumber + 1) * this._recordsPerBar);
var barStartTime = records[currentRecord].startTime;
var longestFrameStatistics;
var longestFrameTime = 0;
for (; currentFrame < lastFrame && currentRecord < records.length; ++currentFrame) {
if (records[currentRecord].type === WebInspector.TimelineModel.RecordType.BeginFrame)
currentRecord++;
var frameStatistics = {};
var frameInfo = this._aggregateFrameStatistics(records, currentRecord, frameStatistics);
currentRecord += frameInfo.recordCount;
if (frameInfo.totalTime > longestFrameTime) {
longestFrameStatistics = frameStatistics;
longestFrameTime = frameInfo.totalTime;
}
}
var barEndTime = records[currentRecord - 1].endTime;
if (longestFrameStatistics) {
this._longestBarTime = Math.max(this._longestBarTime, longestFrameTime);
statistics.push(longestFrameStatistics);
this._barTimes.push({ startTime: barStartTime, endTime: barEndTime });
}
}
return statistics;
},
_aggregateFrameStatistics: function(records, startIndex, statistics)
{
var totalTime = 0;
for (var index = startIndex; index < records.length; ++index) {
var record = records[index];
if (record.type === WebInspector.TimelineModel.RecordType.BeginFrame)
break;
var categories = Object.keys(record.aggregatedStats);
for (var i = 0; i < categories.length; ++i) {
var category = categories[i];
var value = statistics[category] || 0;
value += record.aggregatedStats[category];
totalTime += record.aggregatedStats[category];
statistics[category] = value;
}
}
return {
totalTime: totalTime,
recordCount: index - startIndex
}
},
_aggregateRecords: function(records, numberOfBars)
{
var statistics = [];
for (var barNumber = 0, currentRecord = 0; barNumber < numberOfBars && currentRecord < records.length; ++barNumber) {
var barStartTime = records[currentRecord].startTime;
var longestRecord = records[currentRecord];
var lastIndex = Math.min(Math.floor((barNumber + 1) * this._recordsPerBar), records.length);
for (++currentRecord; currentRecord < lastIndex; ++currentRecord) {
var record = records[currentRecord];
if (longestRecord.endTime - longestRecord.startTime < record.endTime - record.startTime)
longestRecord = record;
}
var barEndTime = records[currentRecord - 1].endTime;
statistics.push(longestRecord.aggregatedStats);
this._longestBarTime = Math.max(this._longestBarTime, longestRecord.endTime - longestRecord.startTime);
this._barTimes.push({ startTime: barStartTime, endTime: barEndTime });
}
return statistics;
},
_buildBar: function(statistics, scale)
{
var outer = document.createElement("div");
outer.className = "timeline-bar-vertical";
var categories = Object.keys(statistics);
for (var i = 0; i < categories.length; ++i) {
var category = categories[i];
var duration = statistics[category];
if (!duration)
continue;
var bar = outer.createChild("div", "timeline-" + category);
bar.style.height = (statistics[category] * scale) + "px";
}
return outer;
},
getWindowTimes: function(windowLeft, windowRight)
{
var windowSpan = this.element.clientWidth
var leftOffset = windowLeft * windowSpan;
var rightOffset = windowRight * windowSpan;
var bars = this.element.children;
var offset0 = bars[0] ? bars[0].offsetLeft : 4;
var barWidth = 9;
if (bars.length > 2) {
var offset1 = bars[bars.length - 2].offsetLeft;
barWidth = (offset1 - offset0) / (bars.length - 2);
}
var firstBar = Math.floor(Math.max(leftOffset - offset0, 0) / barWidth);
var lastBar = Math.min(Math.ceil((rightOffset - offset0 - 2) / barWidth), this._barTimes.length - 1);
const snapToRightTolerancePixels = 3;
return {
startTime: firstBar >= this._barTimes.length ? Infinity : this._barTimes[firstBar].startTime,
endTime: rightOffset + snapToRightTolerancePixels > windowSpan ? Infinity : this._barTimes[lastBar].endTime
}
}
}
WebInspector.TimelineVerticalOverview.prototype.__proto__ = WebInspector.View.prototype;
/**
* @constructor
*/
WebInspector.TimelineOverviewModeSelector = function(selectCallback)
{
this.element = document.createElement("div");
this.element.className = "timeline-overview-mode-selector";
this._selectCallback = selectCallback;
this._buttons = [];
this.element.addEventListener("click", this._onClick.bind(this), false);
}
WebInspector.TimelineOverviewModeSelector.prototype = {
addButton: function(tooltip, className, value)
{
var button = this._createButton(tooltip, className, value);
this.element.appendChild(button);
this._buttons.push(button);
if (this._buttons.length === 1)
this._select(button, true);
},
get value()
{
return this._value;
},
_createButton: function(tooltip, className, value)
{
var button = document.createElement("button");
button.createChild("div", "glyph");
button.createChild("div", "glyph shadow");
button.className = className;
button.title = tooltip;
button.value = value;
return button;
},
_select: function(button, selected)
{
if (selected) {
button.addStyleClass("toggled");
this._value = button.value;
} else
button.removeStyleClass("toggled");
},
_onClick: function(event)
{
var button = event.target.enclosingNodeOrSelfWithNodeName("button");
if (!button)
return;
for (var i = 0; i < this._buttons.length; ++i)
this._select(this._buttons[i], this._buttons[i] === button);
this._selectCallback(button.value);
}
}