]> git.gir.st - VimFx.git/blob - extension/lib/prefs.coffee
Make `<c-q>` in the options able to insert `<escape>`
[VimFx.git] / extension / lib / prefs.coffee
1 ###
2 # Copyright Anton Khodakivskiy 2012, 2013, 2014.
3 # Copyright Simon Lydell 2013, 2014, 2015.
4 #
5 # This file is part of VimFx.
6 #
7 # VimFx is free software: you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation, either version 3 of the License, or
10 # (at your option) any later version.
11 #
12 # VimFx is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
16 #
17 # You should have received a copy of the GNU General Public License
18 # along with VimFx. If not, see <http://www.gnu.org/licenses/>.
19 ###
20
21 defaults = require('./defaults')
22
23 { classes: Cc, interfaces: Ci } = Components
24
25 { prefs } = Services
26
27 branches =
28 addon:
29 user: prefs.getBranch(defaults.BRANCH)
30 default: prefs.getDefaultBranch(defaults.BRANCH)
31 root:
32 user: prefs
33 default: prefs.getDefaultBranch('')
34
35 get = (branch, key) ->
36 return switch branch.getPrefType(key)
37 when branch.PREF_BOOL
38 branch.getBoolPref(key)
39 when branch.PREF_INT
40 branch.getIntPref(key)
41 when branch.PREF_STRING
42 branch.getComplexValue(key, Ci.nsISupportsString).data
43
44 set = (branch, key, value) ->
45 switch typeof value
46 when 'boolean'
47 branch.setBoolPref(key, value)
48 when 'number'
49 branch.setIntPref(key, value) # `value` will be `Math.floor`ed.
50 when 'string'
51 str = Cc['@mozilla.org/supports-string;1']
52 .createInstance(Ci.nsISupportsString)
53 str.data = value
54 branch.setComplexValue(key, Ci.nsISupportsString, str)
55 else
56 if value == null
57 branch.clearUserPref(key)
58 else
59 throw new Error("VimFx: Prefs may only be set to a boolean, number,
60 string or null. Got: #{ typeof value }")
61
62 has = (branch, key) ->
63 branch.prefHasUserValue(key)
64
65 tmp = (branch, pref, temporaryValue, fn) ->
66 previousValue = if has(branch, pref) then get(branch, pref) else null
67 set(branch, pref, temporaryValue)
68 fn()
69 set(branch, pref, previousValue)
70
71 observe = (branch, domain, callback) ->
72 observer = {observe: (branch, topic, changedPref) -> callback(changedPref)}
73 branch.addObserver(domain, observer, false)
74 module.onShutdown(->
75 branch.removeObserver(domain, observer)
76 )
77
78 module.exports =
79 get: get.bind(null, branches.addon.user)
80 set: set.bind(null, branches.addon.user)
81 has: has.bind(null, branches.addon.user)
82 tmp: tmp.bind(null, branches.addon.user)
83 observe: observe.bind(null, branches.addon.user)
84 default:
85 get: get.bind(null, branches.addon.default)
86 set: set.bind(null, branches.addon.default)
87 _init: ->
88 @set(key, value) for key, value of defaults.all_prefs
89 return
90 root:
91 get: get.bind(null, branches.root.user)
92 set: set.bind(null, branches.root.user)
93 has: has.bind(null, branches.root.user)
94 tmp: tmp.bind(null, branches.root.user)
95 default:
96 get: get.bind(null, branches.root.default)
97 set: set.bind(null, branches.root.default)
98 unbound: {get, set, has, tmp, observe}
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