Gnome SHELL Generic Monitor

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Root/README.md

1Introduction
2------------
3
4This GNOME Shell Extension aims to display information to center box. Using DBUS protocol, any application can add or remove text and icons in the upper bar, right after date & clock.
5
6
7Installation
8------------
9
10Install it from https://extensions.gnome.org/extension/2826/generic-monitor/
11
12OR
13
14Create a symbolic link from your _.local_ directory and enable extension
15
16 ln -s $PWD/generic-monitor@gnome-shell-extensions/ ~/.local/share/gnome-shell/extensions/
17 gnome-extensions enable generic-monitor@gnome-shell-extensions
18
19Restart GNOME
20
21
22DBUS protocol
23-------------
24
25All functions read JSON formatted parameters
26
27 notify():
28 {
29 "group": "groupname",
30 "items": [
31 {
32 "name" : "",
33 "box" : ["left"|"center"|"right"], // Optional : center by default
34 "text" : <text_object>, // Optional
35 "icon" : <icon_object>, // Optional
36 "popup" : <popup_object>, // Optional
37 <signals_description>, // Optional
38 }, ...
39 ]
40 }
41 }
42
43 deleteItems():
44 {
45 "items": ["<itemName>@<groupName>", ...]
46 }
47
48 deleteGroups():
49 {
50 "groups": ["<groupName>", ...]
51 }
52
53 openPopup():
54 {
55 "item": "<itemName>@<groupName>"
56 }
57
58 closePopup():
59 {
60 "item": "<itemName>@<groupName>"
61 }
62
63 togglePopup():
64 {
65 "item": "<itemName>@<groupName>"
66 }
67
68
69DBUS object
70===========
71
72<text_object> is defined as :
73 "text" : {
74 "name" : "" // Optional, used with popup nested element
75 <signals_description>, // Optional, used with popup nested element
76 "text" : "Text to be displayed",
77 "style" : "CSS style to be applied", // Optional
78 }
79
80<icon_object> is defined as :
81 "icon" : {
82 "path" : "Icon path",
83 "style" : "CSS style to be applied", // Optional
84 }
85
86<picture_object> is defined as :
87 "picture" : {
88 "name" : "" // Optional, used with popup nested element
89 <signals_description>, // Optional, used with popup nested element
90 "path" : "Icon path",
91 "width" : XXX, // Optional : Force width in pixels, can be -1 for defaut value
92 "height" : XXX, // Optional : Force height in pixels, can be -1 for defaut value
93 }
94
95<popup_object is defuned as :
96 "popup" : {
97 "items": [<text_objects> and/or <picture_objects>]
98 }
99
100
101Signals description
102===================
103
104Signals can be :
105
106 "on-click" : ["signal"|"delete"|"open-popup"|"close-popup"|"toggle-popup"]
107 "on-dblclick" : ["signal"|"delete"|"open-popup"|"close-popup"|"toggle-popup"]
108 "on-rightclick" : ["signal"|"delete"|"open-popup"|"close-popup"|"toggle-popup"]
109 "on-rightdblclick" : ["signal"|"delete"|"open-popup"|"close-popup"|"toggle-popup"]
110 "on-enter" : ["signal"|"delete"|"open-popup"|"close-popup"|"toggle-popup"]
111 "on-leave" : ["signal"|"delete"|"open-popup"|"close-popup"|"toggle-popup"]
112 "on-scroll" : ["signal"|"delete"|"open-popup"|"close-popup"|"toggle-popup"]
113
114Targets :
115
116 * signal : Emit a signal to desktop application
117 * delete : Delete item
118 * open-popup : Open the popup if there is one
119 * close-popup : Close the popup if there is one
120 * toggle-popup : Toggle (open/close) the popup if there is one
121
122
123Signal names emit when action "signal" is specified :
124
125 * onClick
126 * onDblClick
127 * onRightClick
128 * onRightDblClick
129 * onEnter
130 * onLeave
131 * onScrollUp
132 * onScrollDown
133
134Each signal is sent with one parameter : "<itemName>@<groupName>"
135For popup nested elements, parameter is "<nestedName>@<itemName>@<groupName>"
136where nestedName can be empty if not defined by user
137
138Other signals are available when extension is activated/deactivated :
139
140 * onActivate
141 * onDeactivate
142
143
144Example
145-------
146
147You can test it with command line :
148
149 gdbus call --session --dest org.gnome.Shell --object-path /com/soutade/GenericMonitor --method com.soutade.GenericMonitor.notify '{"group":"new","items":[{"name":"first","on-click":"toggle-popup","text":{"text":"Hello","style":"color:green"},"popup":{"items":[{"picture":{"path":"/tmp/cat.jpg"}}]}}]}'
150
151 gdbus call --session --dest org.gnome.Shell --object-path /com/soutade/GenericMonitor --method com.soutade.GenericMonitor.deleteGroups '{"groups":["new"]}'
152
153Python examples are available @ https://indefero.soutade.fr/p/genericmonitor/source/tree/master/examples
154
155
156Development
157-----------
158
159After doing code update, you can test it within a nested window. In other cases you have to restart GNOME.
160
161 dbus-run-session -- gnome-shell --nested [--wayland]
162
163To see log & errors :
164
165 journalctl /usr/bin/gnome-shell
166
167
168Licence
169-------
170
171GNU GPL 3

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