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
|
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
/* exported getKeyboardManager, holdKeyboard, releaseKeyboard */
const { GLib, GnomeDesktop } = imports.gi;
const Main = imports.ui.main;
var DEFAULT_LOCALE = 'en_US';
var DEFAULT_LAYOUT = 'us';
var DEFAULT_VARIANT = '';
let _xkbInfo = null;
function getXkbInfo() {
if (_xkbInfo == null)
_xkbInfo = new GnomeDesktop.XkbInfo();
return _xkbInfo;
}
let _keyboardManager = null;
function getKeyboardManager() {
if (_keyboardManager == null)
_keyboardManager = new KeyboardManager();
return _keyboardManager;
}
function releaseKeyboard() {
if (Main.modalCount > 0)
global.display.unfreeze_keyboard(global.get_current_time());
else
global.display.ungrab_keyboard(global.get_current_time());
}
function holdKeyboard() {
global.display.freeze_keyboard(global.get_current_time());
}
var KeyboardManager = class {
constructor() {
// The XKB protocol doesn't allow for more that 4 layouts in a
// keymap. Wayland doesn't impose this limit and libxkbcommon can
// handle up to 32 layouts but since we need to support X clients
// even as a Wayland compositor, we can't bump this.
this.MAX_LAYOUTS_PER_GROUP = 4;
this._xkbInfo = getXkbInfo();
this._current = null;
this._localeLayoutInfo = this._getLocaleLayout();
this._layoutInfos = {};
this._currentKeymap = null;
}
_applyLayoutGroup(group) {
let options = this._buildOptionsString();
let [layouts, variants] = this._buildGroupStrings(group);
if (this._currentKeymap &&
this._currentKeymap.layouts == layouts &&
this._currentKeymap.variants == variants &&
this._currentKeymap.options == options)
return;
this._currentKeymap = { layouts, variants, options };
global.backend.set_keymap(layouts, variants, options);
}
_applyLayoutGroupIndex(idx) {
global.backend.lock_layout_group(idx);
}
apply(id) {
let info = this._layoutInfos[id];
if (!info)
return;
if (this._current && this._current.group == info.group) {
if (this._current.groupIndex != info.groupIndex)
this._applyLayoutGroupIndex(info.groupIndex);
} else {
this._applyLayoutGroup(info.group);
this._applyLayoutGroupIndex(info.groupIndex);
}
this._current = info;
}
reapply() {
if (!this._current)
return;
this._applyLayoutGroup(this._current.group);
this._applyLayoutGroupIndex(this._current.groupIndex);
}
setUserLayouts(ids) {
this._current = null;
this._layoutInfos = {};
for (let i = 0; i < ids.length; ++i) {
let [found, , , _layout, _variant] = this._xkbInfo.get_layout_info(ids[i]);
if (found)
this._layoutInfos[ids[i]] = { id: ids[i], layout: _layout, variant: _variant };
}
let i = 0;
let group = [];
for (let id in this._layoutInfos) {
// We need to leave one slot on each group free so that we
// can add a layout containing the symbols for the
// language used in UI strings to ensure that toolkits can
// handle mnemonics like Alt+Ф even if the user is
// actually typing in a different layout.
let groupIndex = i % (this.MAX_LAYOUTS_PER_GROUP - 1);
if (groupIndex == 0)
group = [];
let info = this._layoutInfos[id];
group[groupIndex] = info;
info.group = group;
info.groupIndex = groupIndex;
i += 1;
}
}
_getLocaleLayout() {
let locale = GLib.get_language_names()[0];
if (!locale.includes('_'))
locale = DEFAULT_LOCALE;
let [found, , id] = GnomeDesktop.get_input_source_from_locale(locale);
if (!found)
[, , id] = GnomeDesktop.get_input_source_from_locale(DEFAULT_LOCALE);
let _layout, _variant;
[found, , , _layout, _variant] = this._xkbInfo.get_layout_info(id);
if (found)
return { layout: _layout, variant: _variant };
else
return { layout: DEFAULT_LAYOUT, variant: DEFAULT_VARIANT };
}
_buildGroupStrings(_group) {
let group = _group.concat(this._localeLayoutInfo);
let layouts = group.map(g => g.layout).join(',');
let variants = group.map(g => g.variant).join(',');
return [layouts, variants];
}
setKeyboardOptions(options) {
this._xkbOptions = options;
}
_buildOptionsString() {
let options = this._xkbOptions.join(',');
return options;
}
};
|
