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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
/* eslint-env browser */
import {accumulateSum, empty} from '../../shared-util/sugar.js';
import {info as hoverableTooltipInfo, repositionCurrentTooltip}
from './hoverable-tooltip.js';
// These don't need to have tooltip events specially added as
// they're implemented with "text with tooltip" components.
export const info = {
id: 'artistExternalLinkTooltipInfo',
tooltips: null,
tooltipRows: null,
settings: {
// This is the maximum distance, in CSS pixels, that the mouse
// can appear to be moving per second while still considered
// "idle". A greater value means higher tolerance for small
// movements.
maximumIdleSpeed: 40,
// Leaving the mouse idle for this amount of time, over a single
// row of the tooltip, will cause a column of supplemental info
// to display.
mouseIdleShowInfoDelay: 1000,
// If none of these tooltips are visible for this amount of time,
// the supplemental info column is hidden. It'll never disappear
// while a tooltip is actually visible.
hideInfoAfterTooltipHiddenDelay: 2250,
},
state: {
// This is shared by all tooltips.
showingTooltipInfo: false,
mouseIdleTimeout: null,
hideInfoTimeout: null,
mouseMovementPositions: [],
mouseMovementTimestamps: [],
},
};
export function getPageReferences() {
info.tooltips =
Array.from(document.getElementsByClassName('contribution-tooltip'));
info.tooltipRows =
info.tooltips.map(tooltip =>
Array.from(tooltip.getElementsByClassName('icon')));
}
export function addInternalListeners() {
hoverableTooltipInfo.event.whenTooltipShows.push(({tooltip}) => {
const {state} = info;
if (info.tooltips.includes(tooltip)) {
clearTimeout(state.hideInfoTimeout);
state.hideInfoTimeout = null;
}
});
hoverableTooltipInfo.event.whenTooltipHides.push(() => {
const {settings, state} = info;
if (state.showingTooltipInfo) {
state.hideInfoTimeout =
setTimeout(() => {
state.hideInfoTimeout = null;
hideArtistExternalLinkTooltipInfo();
}, settings.hideInfoAfterTooltipHiddenDelay);
} else {
clearTimeout(state.mouseIdleTimeout);
state.mouseIdleTimeout = null;
}
});
}
export function addPageListeners() {
for (const tooltip of info.tooltips) {
tooltip.addEventListener('mousemove', domEvent => {
handleArtistExternalLinkTooltipMouseMoved(domEvent);
});
tooltip.addEventListener('mouseout', () => {
const {state} = info;
clearTimeout(state.mouseIdleTimeout);
state.mouseIdleTimeout = null;
});
}
for (const tooltipRow of info.tooltipRows.flat()) {
tooltipRow.addEventListener('mouseover', () => {
const {state} = info;
clearTimeout(state.mouseIdleTimeout);
state.mouseIdleTimeout = null;
});
}
}
function handleArtistExternalLinkTooltipMouseMoved(domEvent) {
const {settings, state} = info;
if (state.showingTooltipInfo) {
return;
}
// Clean out expired mouse movements
const expiryTime = 1000;
if (!empty(state.mouseMovementTimestamps)) {
const firstRecentMovementIndex =
state.mouseMovementTimestamps
.findIndex(value => Date.now() - value <= expiryTime);
if (firstRecentMovementIndex === -1) {
state.mouseMovementTimestamps.splice(0);
state.mouseMovementPositions.splice(0);
} else if (firstRecentMovementIndex > 0) {
state.mouseMovementTimestamps.splice(0, firstRecentMovementIndex - 1);
state.mouseMovementPositions.splice(0, firstRecentMovementIndex - 1);
}
}
state.mouseMovementTimestamps.push(Date.now());
state.mouseMovementPositions.push([domEvent.screenX, domEvent.screenY]);
// We can't really compute speed without having
// at least two data points!
if (state.mouseMovementPositions.length < 2) {
return;
}
const movementTravelDistances =
state.mouseMovementPositions.map((current, index, array) => {
if (index === 0) return 0;
const previous = array[index - 1];
const deltaX = current[0] - previous[0];
const deltaY = current[1] - previous[1];
return Math.sqrt(deltaX ** 2 + deltaY ** 2);
});
const totalTravelDistance =
accumulateSum(movementTravelDistances);
// In seconds rather than milliseconds.
const timeSinceFirstMovement =
(Date.now() - state.mouseMovementTimestamps[0]) / 1000;
const averageSpeed =
Math.floor(totalTravelDistance / timeSinceFirstMovement);
if (averageSpeed > settings.maximumIdleSpeed) {
clearTimeout(state.mouseIdleTimeout);
state.mouseIdleTimeout = null;
}
if (state.mouseIdleTimeout) {
return;
}
state.mouseIdleTimeout =
setTimeout(() => {
state.mouseIdleTimeout = null;
showArtistExternalLinkTooltipInfo();
}, settings.mouseIdleShowInfoDelay);
}
function showArtistExternalLinkTooltipInfo() {
const {state} = info;
state.showingTooltipInfo = true;
for (const tooltip of info.tooltips) {
tooltip.classList.add('show-info');
}
repositionCurrentTooltip();
}
function hideArtistExternalLinkTooltipInfo() {
const {state} = info;
state.showingTooltipInfo = false;
for (const tooltip of info.tooltips) {
tooltip.classList.remove('show-info');
}
}
|
