Jamie Gennis | 66a3768 | 2013-07-15 18:29:18 -0700 | [diff] [blame] | 1 | // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | 'use strict'; |
| 6 | |
| 7 | base.requireStylesheet('tracing.tracks.object_instance_track'); |
| 8 | |
| 9 | base.require('base.sorted_array_utils'); |
Jamie Gennis | 6833e18 | 2013-07-19 14:00:49 -0700 | [diff] [blame^] | 10 | base.require('tracing.tracks.heading_track'); |
Jamie Gennis | 66a3768 | 2013-07-15 18:29:18 -0700 | [diff] [blame] | 11 | base.require('tracing.color_scheme'); |
| 12 | base.require('ui'); |
| 13 | |
| 14 | base.exportTo('tracing.tracks', function() { |
| 15 | |
| 16 | var palette = tracing.getColorPalette(); |
| 17 | var highlightIdBoost = tracing.getColorPaletteHighlightIdBoost(); |
| 18 | |
| 19 | /** |
| 20 | * A track that displays an array of Slice objects. |
| 21 | * @constructor |
Jamie Gennis | 6833e18 | 2013-07-19 14:00:49 -0700 | [diff] [blame^] | 22 | * @extends {HeadingTrack} |
Jamie Gennis | 66a3768 | 2013-07-15 18:29:18 -0700 | [diff] [blame] | 23 | */ |
| 24 | |
| 25 | var ObjectInstanceTrack = ui.define( |
Jamie Gennis | 6833e18 | 2013-07-19 14:00:49 -0700 | [diff] [blame^] | 26 | 'object-instance-track', tracing.tracks.HeadingTrack); |
Jamie Gennis | 66a3768 | 2013-07-15 18:29:18 -0700 | [diff] [blame] | 27 | |
| 28 | ObjectInstanceTrack.prototype = { |
Jamie Gennis | 6833e18 | 2013-07-19 14:00:49 -0700 | [diff] [blame^] | 29 | __proto__: tracing.tracks.HeadingTrack.prototype, |
Jamie Gennis | 66a3768 | 2013-07-15 18:29:18 -0700 | [diff] [blame] | 30 | |
| 31 | decorate: function(viewport) { |
Jamie Gennis | 6833e18 | 2013-07-19 14:00:49 -0700 | [diff] [blame^] | 32 | tracing.tracks.HeadingTrack.prototype.decorate.call(this, viewport); |
Jamie Gennis | 66a3768 | 2013-07-15 18:29:18 -0700 | [diff] [blame] | 33 | this.classList.add('object-instance-track'); |
| 34 | this.objectInstances_ = []; |
| 35 | this.objectSnapshots_ = []; |
| 36 | }, |
| 37 | |
| 38 | get objectInstances() { |
| 39 | return this.objectInstances_; |
| 40 | }, |
| 41 | |
| 42 | set objectInstances(objectInstances) { |
Jamie Gennis | 66a3768 | 2013-07-15 18:29:18 -0700 | [diff] [blame] | 43 | if (!objectInstances || objectInstances.length == 0) { |
| 44 | this.heading = ''; |
| 45 | this.objectInstances_ = []; |
| 46 | this.objectSnapshots_ = []; |
| 47 | return; |
| 48 | } |
| 49 | this.heading = objectInstances[0].typeName; |
| 50 | this.objectInstances_ = objectInstances; |
| 51 | this.objectSnapshots_ = []; |
| 52 | this.objectInstances_.forEach(function(instance) { |
| 53 | this.objectSnapshots_.push.apply( |
| 54 | this.objectSnapshots_, instance.snapshots); |
| 55 | }, this); |
| 56 | }, |
| 57 | |
| 58 | get height() { |
| 59 | return window.getComputedStyle(this).height; |
| 60 | }, |
| 61 | |
| 62 | set height(height) { |
| 63 | this.style.height = height; |
Jamie Gennis | 66a3768 | 2013-07-15 18:29:18 -0700 | [diff] [blame] | 64 | }, |
| 65 | |
| 66 | get snapshotRadiusView() { |
| 67 | return 7 * (window.devicePixelRatio || 1); |
| 68 | }, |
| 69 | |
Jamie Gennis | 6833e18 | 2013-07-19 14:00:49 -0700 | [diff] [blame^] | 70 | draw: function(type, viewLWorld, viewRWorld) { |
| 71 | switch (type) { |
| 72 | case tracing.tracks.DrawType.SLICE: |
| 73 | this.drawSlices_(viewLWorld, viewRWorld); |
| 74 | break; |
| 75 | } |
| 76 | }, |
| 77 | |
| 78 | drawSlices_: function(viewLWorld, viewRWorld) { |
Jamie Gennis | 66a3768 | 2013-07-15 18:29:18 -0700 | [diff] [blame] | 79 | var ctx = this.context(); |
| 80 | var pixelRatio = window.devicePixelRatio || 1; |
| 81 | |
| 82 | var bounds = this.getBoundingClientRect(); |
| 83 | var height = bounds.height * pixelRatio; |
| 84 | var halfHeight = height * 0.5; |
| 85 | var twoPi = Math.PI * 2; |
| 86 | |
| 87 | // Culling parameters. |
| 88 | var vp = this.viewport; |
| 89 | var snapshotRadiusView = this.snapshotRadiusView; |
| 90 | var snapshotRadiusWorld = vp.xViewVectorToWorld(height); |
| 91 | var loI; |
| 92 | |
| 93 | // Begin rendering in world space. |
| 94 | ctx.save(); |
| 95 | vp.applyTransformToCanvas(ctx); |
| 96 | |
| 97 | // Instances |
| 98 | var objectInstances = this.objectInstances_; |
| 99 | var loI = base.findLowIndexInSortedArray( |
| 100 | objectInstances, |
| 101 | function(instance) { |
| 102 | return instance.deletionTs; |
| 103 | }, |
| 104 | viewLWorld); |
| 105 | ctx.globalAlpha = 0.25; |
| 106 | ctx.strokeStyle = 'rgb(0,0,0)'; |
| 107 | for (var i = loI; i < objectInstances.length; ++i) { |
| 108 | var instance = objectInstances[i]; |
| 109 | var x = instance.creationTs; |
| 110 | if (x > viewRWorld) |
| 111 | break; |
| 112 | |
| 113 | var colorId = instance.selected ? |
| 114 | instance.colorId + highlightIdBoost : |
| 115 | instance.colorId; |
| 116 | |
| 117 | var right = instance.deletionTs == Number.MAX_VALUE ? |
| 118 | viewRWorld : instance.deletionTs; |
| 119 | ctx.fillStyle = palette[colorId]; |
| 120 | ctx.fillRect(x, pixelRatio, right - x, height - 2 * pixelRatio); |
| 121 | } |
| 122 | ctx.globalAlpha = 1; |
| 123 | ctx.restore(); |
| 124 | |
| 125 | // Snapshots. Has to run in worldspace because ctx.arc gets transformed. |
| 126 | var objectSnapshots = this.objectSnapshots_; |
| 127 | loI = base.findLowIndexInSortedArray( |
| 128 | objectSnapshots, |
| 129 | function(snapshot) { |
| 130 | return snapshot.ts + |
| 131 | snapshotRadiusWorld; |
| 132 | }, |
| 133 | viewLWorld); |
| 134 | for (var i = loI; i < objectSnapshots.length; ++i) { |
| 135 | var snapshot = objectSnapshots[i]; |
| 136 | var x = snapshot.ts; |
| 137 | if (x - snapshotRadiusWorld > viewRWorld) |
| 138 | break; |
| 139 | var xView = vp.xWorldToView(x); |
| 140 | |
| 141 | var colorId = snapshot.selected ? |
| 142 | snapshot.objectInstance.colorId + highlightIdBoost : |
| 143 | snapshot.objectInstance.colorId; |
| 144 | |
| 145 | ctx.fillStyle = palette[colorId]; |
| 146 | ctx.beginPath(); |
| 147 | ctx.arc(xView, halfHeight, snapshotRadiusView, 0, twoPi); |
| 148 | ctx.fill(); |
| 149 | if (snapshot.selected) { |
| 150 | ctx.lineWidth = 5; |
| 151 | ctx.strokeStyle = 'rgb(100,100,0)'; |
| 152 | ctx.stroke(); |
| 153 | |
| 154 | ctx.beginPath(); |
| 155 | ctx.arc(xView, halfHeight, snapshotRadiusView - 1, 0, twoPi); |
| 156 | ctx.lineWidth = 2; |
| 157 | ctx.strokeStyle = 'rgb(255,255,0)'; |
| 158 | ctx.stroke(); |
| 159 | } else { |
| 160 | ctx.lineWidth = 1; |
| 161 | ctx.strokeStyle = 'rgb(0,0,0)'; |
| 162 | ctx.stroke(); |
| 163 | } |
| 164 | } |
| 165 | ctx.lineWidth = 1; |
| 166 | }, |
| 167 | |
| 168 | addIntersectingItemsInRangeToSelectionInWorldSpace: function( |
| 169 | loWX, hiWX, viewPixWidthWorld, selection) { |
| 170 | var that = this; |
| 171 | |
| 172 | // Pick snapshots first. |
| 173 | var foundSnapshot = false; |
| 174 | function onSnapshotHit(snapshot) { |
| 175 | selection.addObjectSnapshot(that, snapshot); |
| 176 | foundSnapshot = true; |
| 177 | } |
| 178 | var snapshotRadiusView = this.snapshotRadiusView; |
| 179 | var snapshotRadiusWorld = viewPixWidthWorld * snapshotRadiusView; |
| 180 | base.iterateOverIntersectingIntervals( |
| 181 | this.objectSnapshots_, |
| 182 | function(x) { return x.ts - snapshotRadiusWorld; }, |
| 183 | function(x) { return 2 * snapshotRadiusWorld; }, |
| 184 | loWX, hiWX, |
| 185 | onSnapshotHit); |
| 186 | if (foundSnapshot) |
| 187 | return; |
| 188 | |
| 189 | // Try picking instances. |
| 190 | function onInstanceHit(instance) { |
| 191 | selection.addObjectInstance(that, instance); |
| 192 | } |
| 193 | base.iterateOverIntersectingIntervals( |
| 194 | this.objectInstances_, |
| 195 | function(x) { return x.creationTs; }, |
| 196 | function(x) { return x.deletionTs - x.creationTs; }, |
| 197 | loWX, hiWX, |
| 198 | onInstanceHit); |
| 199 | }, |
| 200 | |
| 201 | /** |
| 202 | * Add the item to the left or right of the provided hit, if any, to the |
| 203 | * selection. |
| 204 | * @param {slice} The current slice. |
| 205 | * @param {Number} offset Number of slices away from the hit to look. |
| 206 | * @param {Selection} selection The selection to add a hit to, |
| 207 | * if found. |
| 208 | * @return {boolean} Whether a hit was found. |
| 209 | * @private |
| 210 | */ |
| 211 | addItemNearToProvidedHitToSelection: function(hit, offset, selection) { |
| 212 | if (hit instanceof tracing.SelectionObjectSnapshotHit) { |
| 213 | var index = this.objectSnapshots_.indexOf(hit.objectSnapshot); |
| 214 | var newIndex = index + offset; |
| 215 | if (newIndex >= 0 && newIndex < this.objectSnapshots_.length) { |
| 216 | selection.addObjectSnapshot(this, this.objectSnapshots_[newIndex]); |
| 217 | return true; |
| 218 | } |
| 219 | } else if (hit instanceof tracing.SelectionObjectInstanceHit) { |
| 220 | var index = this.objectInstances_.indexOf(hit.objectInstance); |
| 221 | var newIndex = index + offset; |
| 222 | if (newIndex >= 0 && newIndex < this.objectInstances_.length) { |
| 223 | selection.addObjectInstance(this, this.objectInstances_[newIndex]); |
| 224 | return true; |
| 225 | } |
| 226 | } else { |
| 227 | throw new Error('Unrecognized hit'); |
| 228 | } |
| 229 | return false; |
| 230 | }, |
| 231 | |
| 232 | addAllObjectsMatchingFilterToSelection: function(filter, selection) { |
| 233 | } |
| 234 | }; |
| 235 | |
| 236 | ObjectInstanceTrack.typeNameToTrackConstructorMap = {}; |
| 237 | ObjectInstanceTrack.register = function(typeName, constructor) { |
| 238 | if (ObjectInstanceTrack.typeNameToTrackConstructorMap[typeName]) |
| 239 | throw new Error('Handler already registered for ' + typeName); |
| 240 | ObjectInstanceTrack.typeNameToTrackConstructorMap[typeName] = |
| 241 | constructor; |
| 242 | }; |
| 243 | |
| 244 | ObjectInstanceTrack.getTrackConstructor = function(typeName) { |
| 245 | return ObjectInstanceTrack.typeNameToTrackConstructorMap[typeName]; |
| 246 | }; |
| 247 | |
| 248 | return { |
| 249 | ObjectInstanceTrack: ObjectInstanceTrack |
| 250 | }; |
| 251 | }); |