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<!DOCTYPE html>
<!--
Copyright (c) 2013 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.
-->
<link rel="import" href="/tracing/ui/tracks/process_memory_dump_track.html">
<link rel="import" href="/tracing/ui/tracks/process_track_base.html">
<link rel="import" href="/tracing/ui/base/draw_helpers.html">
<script>
'use strict';
tr.exportTo('tr.ui.tracks', function() {
var ProcessTrackBase = tr.ui.tracks.ProcessTrackBase;
/**
* @constructor
*/
var ProcessTrack = tr.ui.b.define('process-track', ProcessTrackBase);
ProcessTrack.prototype = {
__proto__: ProcessTrackBase.prototype,
decorate: function(viewport) {
tr.ui.tracks.ProcessTrackBase.prototype.decorate.call(this, viewport);
},
drawTrack: function(type) {
switch (type) {
case tr.ui.tracks.DrawType.INSTANT_EVENT:
if (!this.processBase.instantEvents ||
this.processBase.instantEvents.length === 0)
break;
var ctx = this.context();
var pixelRatio = window.devicePixelRatio || 1;
var bounds = this.getBoundingClientRect();
var canvasBounds = ctx.canvas.getBoundingClientRect();
ctx.save();
ctx.translate(0, pixelRatio * (bounds.top - canvasBounds.top));
var dt = this.viewport.currentDisplayTransform;
var viewLWorld = dt.xViewToWorld(0);
var viewRWorld = dt.xViewToWorld(
bounds.width * pixelRatio);
tr.ui.b.drawInstantSlicesAsLines(
ctx,
this.viewport.currentDisplayTransform,
viewLWorld,
viewRWorld,
bounds.height,
this.processBase.instantEvents,
2);
ctx.restore();
break;
case tr.ui.tracks.DrawType.BACKGROUND:
this.drawBackground_();
// Don't bother recursing further, Process is the only level that
// draws backgrounds.
return;
}
tr.ui.tracks.ContainerTrack.prototype.drawTrack.call(this, type);
},
drawBackground_: function() {
var ctx = this.context();
var canvasBounds = ctx.canvas.getBoundingClientRect();
var pixelRatio = window.devicePixelRatio || 1;
var draw = false;
ctx.fillStyle = '#eee';
for (var i = 0; i < this.children.length; ++i) {
if (!(this.children[i] instanceof tr.ui.tracks.Track) ||
(this.children[i] instanceof tr.ui.tracks.SpacingTrack))
continue;
draw = !draw;
if (!draw)
continue;
var bounds = this.children[i].getBoundingClientRect();
ctx.fillRect(0, pixelRatio * (bounds.top - canvasBounds.top),
ctx.canvas.width, pixelRatio * bounds.height);
}
},
// Process maps to processBase because we derive from ProcessTrackBase.
set process(process) {
this.processBase = process;
},
get process() {
return this.processBase;
},
get eventContainer() {
return this.process;
},
addContainersToTrackMap: function(containerToTrackMap) {
tr.ui.tracks.ProcessTrackBase.prototype.addContainersToTrackMap.apply(
this, arguments);
containerToTrackMap.addContainer(this.process, this);
},
appendMemoryDumpTrack_: function() {
var processMemoryDumps = this.process.memoryDumps;
if (processMemoryDumps.length) {
var pmdt = new tr.ui.tracks.ProcessMemoryDumpTrack(this.viewport_);
pmdt.memoryDumps = processMemoryDumps;
this.appendChild(pmdt);
}
},
addIntersectingEventsInRangeToSelectionInWorldSpace: function(
loWX, hiWX, viewPixWidthWorld, selection) {
function onPickHit(instantEvent) {
selection.push(instantEvent);
}
var instantEventWidth = 2 * viewPixWidthWorld;
tr.b.iterateOverIntersectingIntervals(this.processBase.instantEvents,
function(x) { return x.start; },
function(x) { return x.duration + instantEventWidth; },
loWX, hiWX,
onPickHit.bind(this));
tr.ui.tracks.ContainerTrack.prototype.
addIntersectingEventsInRangeToSelectionInWorldSpace.
apply(this, arguments);
},
addClosestEventToSelection: function(worldX, worldMaxDist, loY, hiY,
selection) {
this.addClosestInstantEventToSelection(this.processBase.instantEvents,
worldX, worldMaxDist, selection);
tr.ui.tracks.ContainerTrack.prototype.addClosestEventToSelection.
apply(this, arguments);
}
};
return {
ProcessTrack: ProcessTrack
};
});
</script>
|
