-
-
Notifications
You must be signed in to change notification settings - Fork 3.2k
/
runningSessions.tsx
214 lines (189 loc) · 4.85 KB
/
runningSessions.tsx
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
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.
import React from 'react';
import { VDomRenderer, VDomModel } from '@jupyterlab/apputils';
import {
ServiceManager,
Kernel,
TerminalSession,
TerminalManager,
SessionManager
} from '@jupyterlab/services';
import { GroupItem, IconItem, interactiveItem, TextItem } from '..';
/**
* Half spacing between subitems in a status item.
*/
const HALF_SPACING = 4;
/**
* A pure functional component for rendering kernel and terminal sessions.
*
* @param props: the props for the component.
*
* @returns a tsx component for the running sessions.
*/
function RunningSessionsComponent(
props: RunningSessionsComponent.IProps
): React.ReactElement<RunningSessionsComponent.IProps> {
return (
<GroupItem spacing={HALF_SPACING} onClick={props.handleClick}>
<GroupItem spacing={HALF_SPACING}>
<TextItem source={props.terminals} />
<IconItem source={'jp-StatusItem-terminal'} />
</GroupItem>
<GroupItem spacing={HALF_SPACING}>
<TextItem source={props.kernels} />
<IconItem source={'jp-StatusItem-kernel'} />
</GroupItem>
</GroupItem>
);
}
/**
* A namepsace for RunningSessionsComponents statics.
*/
namespace RunningSessionsComponent {
/**
* The props for rendering the RunningSessionsComponent.
*/
export interface IProps {
/**
* A click handler for the component. By defult this is used
* to activate the running sessions side panel.
*/
handleClick: () => void;
/**
* The number of running kernels.
*/
kernels: number;
/**
* The number of active terminal sessions.
*/
terminals: number;
}
}
/**
* A VDomRenderer for a RunningSessions status item.
*/
export class RunningSessions extends VDomRenderer<RunningSessions.Model> {
/**
* Create a new RunningSessions widget.
*/
constructor(opts: RunningSessions.IOptions) {
super();
this._serviceManager = opts.serviceManager;
this._handleClick = opts.onClick;
this._serviceManager.sessions.runningChanged.connect(
this._onKernelsRunningChanged,
this
);
this._serviceManager.terminals.runningChanged.connect(
this._onTerminalsRunningChanged,
this
);
this.model = new RunningSessions.Model();
this.addClass(interactiveItem);
}
/**
* Render the running sessions widget.
*/
render() {
if (!this.model) {
return null;
}
this.title.caption = `${this.model.terminals} Terminals, ${
this.model!.kernels
} Kernels`;
return (
<RunningSessionsComponent
kernels={this.model.kernels}
terminals={this.model.terminals}
handleClick={this._handleClick}
/>
);
}
/**
* Dispose of the status item.
*/
dispose() {
super.dispose();
this._serviceManager.sessions.runningChanged.disconnect(
this._onKernelsRunningChanged,
this
);
this._serviceManager.terminals.runningChanged.disconnect(
this._onTerminalsRunningChanged,
this
);
}
/**
* Set the number of model kernels when the list changes.
*/
private _onKernelsRunningChanged(
manager: SessionManager,
kernels: Kernel.IModel[]
): void {
this.model!.kernels = kernels.length;
}
/**
* Set the number of model terminal sessions when the list changes.
*/
private _onTerminalsRunningChanged(
manager: TerminalManager,
terminals: TerminalSession.IModel[]
): void {
this.model!.terminals = terminals.length;
}
private _handleClick: () => void;
private _serviceManager: ServiceManager;
}
/**
* A namespace for RunninSessions statics.
*/
export namespace RunningSessions {
/**
* A VDomModel for the RunninSessions status item.
*/
export class Model extends VDomModel {
/**
* The number of active kernels.
*/
get kernels(): number {
return this._kernels;
}
set kernels(kernels: number) {
const oldKernels = this._kernels;
this._kernels = kernels;
if (oldKernels !== this._kernels) {
this.stateChanged.emit(void 0);
}
}
/**
* The number of active terminal sessions.
*/
get terminals(): number {
return this._terminals;
}
set terminals(terminals: number) {
const oldTerminals = this._terminals;
this._terminals = terminals;
if (oldTerminals !== this._terminals) {
this.stateChanged.emit(void 0);
}
}
private _terminals: number = 0;
private _kernels: number = 0;
}
/**
* Options for creating a RunningSessions item.
*/
export interface IOptions {
/**
* The application service manager.
*/
serviceManager: ServiceManager;
/**
* A click handler for the item. By defult this is used
* to activate the running sessions side panel.
*/
onClick: () => void;
}
}