1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import {FocusEvent, SelectRelatedEvent, ToolTipEvent} from '../events.mjs';
import {CSSColor} from '../helper.mjs';
import {DOM, V8CustomElement} from '../helper.mjs';
DOM.defineCustomElement(
'./view/map-panel/map-transitions',
(templateText) => class MapTransitions extends V8CustomElement {
_timeline;
_map;
_edgeToColor = new Map();
_selectedLogEntries;
_displayedMapsInTree;
_toggleSubtreeHandler = this._handleToggleSubtree.bind(this);
_mapClickHandler = this._handleMapClick.bind(this);
_mapDoubleClickHandler = this._handleMapDoubleClick.bind(this);
_mouseoverMapHandler = this._handleMouseoverMap.bind(this);
constructor() {
super(templateText);
this.currentNode = this.transitionView;
}
get transitionView() {
return this.$('#transitionView');
}
set timeline(timeline) {
this._timeline = timeline;
this._edgeToColor.clear();
timeline.getBreakdown().forEach(breakdown => {
this._edgeToColor.set(breakdown.key, CSSColor.at(breakdown.id));
});
}
set selectedLogEntries(list) {
this._selectedLogEntries = list;
this.update();
}
_update() {
this.transitionView.style.display = 'none';
DOM.removeAllChildren(this.transitionView);
if (this._selectedLogEntries.length == 0) return;
this._displayedMapsInTree = new Set();
// Limit view to 200 maps for performance reasons.
this._selectedLogEntries.slice(0, 200).forEach(
(map) => this._addMapAndParentTransitions(map));
this._displayedMapsInTree = undefined;
this.transitionView.style.display = '';
}
_addMapAndParentTransitions(map) {
if (map === undefined) return;
if (this._displayedMapsInTree.has(map)) return;
this._displayedMapsInTree.add(map);
this.currentNode = this.transitionView;
let parents = map.getParents();
if (parents.length > 0) {
this._addTransitionTo(parents.pop());
parents.reverse().forEach((each) => this._addTransitionTo(each));
}
let mapNode = this._addSubtransitions(map);
// Mark and show the selected map.
mapNode.classList.add('selected');
if (this.selectedMap == map) {
setTimeout(
() => mapNode.scrollIntoView({
behavior: 'smooth',
block: 'nearest',
inline: 'nearest',
}),
1);
}
}
_addSubtransitions(map) {
let mapNode = this._addTransitionTo(map);
// Draw outgoing linear transition line.
let current = map;
while (current.children.length == 1) {
current = current.children[0].to;
this._addTransitionTo(current);
}
return mapNode;
}
_addTransitionEdge(map) {
let classes = ['transitionEdge'];
let edge = DOM.div(classes);
edge.style.backgroundColor = this._edgeToColor.get(map.edge.type);
let labelNode = DOM.div('transitionLabel');
labelNode.innerText = map.edge.toString();
edge.appendChild(labelNode);
return edge;
}
_addTransitionTo(map) {
// transition[ transitions[ transition[...], transition[...], ...]];
this._displayedMapsInTree?.add(map);
let transition = DOM.div('transition');
if (map.isDeprecated()) transition.classList.add('deprecated');
if (map.edge) {
transition.appendChild(this._addTransitionEdge(map));
}
let mapNode = this._addMapNode(map);
transition.appendChild(mapNode);
let subtree = DOM.div('transitions');
transition.appendChild(subtree);
this.currentNode.appendChild(transition);
this.currentNode = subtree;
return mapNode;
}
_addMapNode(map) {
let node = DOM.div('map');
if (map.edge)
node.style.backgroundColor = this._edgeToColor.get(map.edge.type);
node.map = map;
node.onclick = this._mapClickHandler
node.ondblclick = this._mapDoubleClickHandler
node.onmouseover = this._mouseoverMapHandler
if (map.children.length > 1) {
node.innerText = map.children.length;
const showSubtree = DOM.div('showSubtransitions');
showSubtree.onclick = this._toggleSubtreeHandler
node.appendChild(showSubtree);
}
else if (map.children.length == 0) {
node.innerHTML = '●';
}
this.currentNode.appendChild(node);
return node;
}
_handleMapClick(event) {
const map = event.currentTarget.map;
this.dispatchEvent(new FocusEvent(map));
}
_handleMapDoubleClick(event) {
this.dispatchEvent(new SelectRelatedEvent(event.currentTarget.map));
}
_handleMouseoverMap(event) {
this.dispatchEvent(new ToolTipEvent(
event.currentTarget.map.toStringLong(), event.currentTarget));
}
_handleToggleSubtree(event) {
event.preventDefault();
const node = event.currentTarget.parentElement;
let map = node.map;
event.target.classList.toggle('opened');
let transitionsNode = node.parentElement.querySelector('.transitions');
let subtransitionNodes = transitionsNode.children;
if (subtransitionNodes.length <= 1) {
// Add subtransitions except the one that's already shown.
let visibleTransitionMap = subtransitionNodes.length == 1 ?
transitionsNode.querySelector('.map').map :
undefined;
map.children.forEach((edge) => {
if (edge.to != visibleTransitionMap) {
this.currentNode = transitionsNode;
this._addSubtransitions(edge.to);
}
});
} else {
// remove all but the first (currently selected) subtransition
for (let i = subtransitionNodes.length - 1; i > 0; i--) {
transitionsNode.removeChild(subtransitionNodes[i]);
}
}
return false;
}
});
|
