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
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const { createSelector } = require("devtools/client/shared/vendor/reselect");
/**
* Gets the total number of bytes representing the cumulated content size of
* a set of requests. Returns 0 for an empty set.
*
* @param {array} items - an array of request items
* @return {number} total bytes of requests
*/
function getContentSizeOfRequests(items) {
if (!items.length) {
return 0;
}
let result = 0;
items.forEach((item) => {
let size = item.attachment.contentSize;
result += (typeof size == "number") ? size : 0;
});
return result;
}
function getTransferredSizeOfRequests(items) {
if (!items.length) {
return 0;
}
let result = 0;
items.forEach((item) => {
let size = item.attachment.transferredSize;
result += (typeof size == "number") ? size : 0;
});
return result;
}
/**
* Gets the total milliseconds for all requests. Returns null for an
* empty set.
*
* @param {array} items - an array of request items
* @return {object} total milliseconds for all requests
*/
function getMillisOfRequests(items) {
if (!items.length) {
return null;
}
const oldest = items.reduce((prev, curr) =>
prev.attachment.startedMillis < curr.attachment.startedMillis ?
prev : curr);
const newest = items.reduce((prev, curr) =>
prev.attachment.startedMillis > curr.attachment.startedMillis ?
prev : curr);
return newest.attachment.endedMillis - oldest.attachment.startedMillis;
}
const getDisplayedRequestsSummary = createSelector(
(state) => state.requests.items,
(requests) => ({
count: requests.length,
contentSize: getContentSizeOfRequests(requests),
transferredSize: getTransferredSizeOfRequests(requests),
millis: getMillisOfRequests(requests),
})
);
function getDisplayedTimingMarker(state, marker) {
let timingMarker = null;
if (state.timingMarkers) {
timingMarker = state.timingMarkers.get(marker);
}
let firstRequestStartedMillis = null;
if (state.requests.items.length) {
firstRequestStartedMillis = state.requests.items[0]
.attachment.firstRequestStartedMillis;
}
if (timingMarker && firstRequestStartedMillis) {
return timingMarker - firstRequestStartedMillis;
} else {
return -1;
}
}
module.exports = {
getDisplayedRequestsSummary,
getDisplayedTimingMarker,
};
|
