Revision 261548ff
Added by koszko about 2 years ago
common/storage_client.js | ||
---|---|---|
5 | 5 |
* Redistribution terms are gathered in the `copyright' file. |
6 | 6 |
*/ |
7 | 7 |
|
8 |
"use strict"; |
|
9 |
|
|
10 |
(() => { |
|
11 |
const CONNECTION_TYPE = window.CONNECTION_TYPE; |
|
12 |
const TYPE_PREFIX = window.TYPE_PREFIX; |
|
13 |
const list_prefixes = window.list_prefixes; |
|
14 |
const make_once = window.make_once; |
|
15 |
const browser = window.browser; |
|
16 |
|
|
17 |
var call_id = 0; |
|
18 |
var port; |
|
19 |
var calls_waiting = new Map(); |
|
20 |
|
|
21 |
function set_call_callback(resolve, reject, func, args) |
|
22 |
{ |
|
23 |
port.postMessage([call_id, func, args]); |
|
24 |
calls_waiting.set(call_id++, [resolve, reject]); |
|
25 |
} |
|
26 |
|
|
27 |
async function remote_call(func, args) |
|
28 |
{ |
|
29 |
return new Promise((resolve, reject) => |
|
30 |
set_call_callback(resolve, reject, func, args)); |
|
31 |
} |
|
32 |
|
|
33 |
function handle_message(message) |
|
34 |
{ |
|
35 |
let callbacks = calls_waiting.get(message.call_id); |
|
36 |
if (callbacks === undefined) { |
|
37 |
handle_change(message); |
|
38 |
return; |
|
39 |
} |
|
40 |
|
|
41 |
let [resolve, reject] = callbacks; |
|
42 |
calls_waiting.delete(message.call_id); |
|
43 |
if (message.error !== undefined) |
|
44 |
setTimeout(reject, 0, message.error); |
|
45 |
else |
|
46 |
setTimeout(resolve, 0, message.result); |
|
47 |
} |
|
48 |
|
|
49 |
function list(name, prefix) |
|
50 |
{ |
|
51 |
return {prefix, name, listeners : new Set()}; |
|
52 |
} |
|
53 |
|
|
54 |
var scripts = list("scripts", TYPE_PREFIX.SCRIPT); |
|
55 |
var bags = list("bags", TYPE_PREFIX.BAG); |
|
56 |
var pages = list("pages", TYPE_PREFIX.PAGE); |
|
57 |
|
|
58 |
const list_by_prefix = { |
|
59 |
[TYPE_PREFIX.SCRIPT] : scripts, |
|
60 |
[TYPE_PREFIX.BAG] : bags, |
|
61 |
[TYPE_PREFIX.PAGE] : pages |
|
62 |
}; |
|
63 |
|
|
64 |
var resolve_init; |
|
65 |
|
|
66 |
function handle_first_message(message) |
|
67 |
{ |
|
68 |
for (let prefix of Object.keys(message)) |
|
69 |
list_by_prefix[prefix].map = new Map(message[prefix]); |
|
70 |
|
|
71 |
port.onMessage.removeListener(handle_first_message); |
|
72 |
port.onMessage.addListener(handle_message); |
|
73 |
|
|
74 |
resolve_init(); |
|
75 |
} |
|
76 |
|
|
77 |
function handle_change(change) |
|
78 |
{ |
|
79 |
let list = list_by_prefix[change.prefix]; |
|
80 |
|
|
81 |
if (change.new_val === undefined) |
|
82 |
list.map.delete(change.item); |
|
83 |
else |
|
84 |
list.map.set(change.item, change.new_val); |
|
85 |
|
|
86 |
for (let listener_callback of list.listeners) |
|
87 |
listener_callback(change); |
|
88 |
} |
|
89 |
|
|
90 |
var exports = {}; |
|
91 |
|
|
92 |
function start_connection(resolve) |
|
93 |
{ |
|
94 |
resolve_init = resolve; |
|
95 |
port = browser.runtime.connect({name : CONNECTION_TYPE.REMOTE_STORAGE}); |
|
96 |
port.onMessage.addListener(handle_first_message); |
|
97 |
} |
|
98 |
|
|
99 |
async function init() { |
|
100 |
await new Promise((resolve, reject) => start_connection(resolve)); |
|
101 |
return exports; |
|
102 |
} |
|
103 |
|
|
104 |
for (let call_name of ["set", "remove", "replace", "clear"]) |
|
105 |
exports [call_name] = (...args) => remote_call(call_name, args); |
|
106 |
|
|
107 |
// TODO: Much of the code below is copy-pasted from /background/storage.mjs. |
|
108 |
// This should later be refactored into a separate module |
|
109 |
// to avoid duplication. |
|
110 |
|
|
111 |
/* |
|
112 |
* Facilitate listening to changes |
|
113 |
*/ |
|
114 |
|
|
115 |
exports.add_change_listener = function (cb, prefixes=list_prefixes) |
|
116 |
{ |
|
117 |
if (typeof(prefixes) === "string") |
|
118 |
prefixes = [prefixes]; |
|
119 |
|
|
120 |
for (let prefix of prefixes) |
|
121 |
list_by_prefix[prefix].listeners.add(cb); |
|
122 |
} |
|
123 |
|
|
124 |
exports.remove_change_listener = function (cb, prefixes=list_prefixes) |
|
125 |
{ |
|
126 |
if (typeof(prefixes) === "string") |
|
127 |
prefixes = [prefixes]; |
|
128 |
|
|
129 |
for (let prefix of prefixes) |
|
130 |
list_by_prefix[prefix].listeners.delete(cb); |
|
131 |
} |
|
132 |
|
|
133 |
/* Prepare some hepler functions to get elements of a list */ |
|
134 |
|
|
135 |
function list_items_it(list, with_values=false) |
|
136 |
{ |
|
137 |
return with_values ? list.map.entries() : list.map.keys(); |
|
138 |
} |
|
139 |
|
|
140 |
function list_entries_it(list) |
|
141 |
{ |
|
142 |
return list_items_it(list, true); |
|
143 |
} |
|
144 |
|
|
145 |
function list_items(list, with_values=false) |
|
146 |
{ |
|
147 |
let array = []; |
|
148 |
|
|
149 |
for (let item of list_items_it(list, with_values)) |
|
150 |
array.push(item); |
|
151 |
|
|
152 |
return array; |
|
153 |
} |
|
154 |
|
|
155 |
function list_entries(list) |
|
156 |
{ |
|
157 |
return list_items(list, true); |
|
158 |
} |
|
159 |
|
|
160 |
exports.get = function (prefix, item) |
|
161 |
{ |
|
162 |
return list_by_prefix[prefix].map.get(item); |
|
163 |
} |
|
164 |
|
|
165 |
exports.get_all_names = function (prefix) |
|
166 |
{ |
|
167 |
return list_items(list_by_prefix[prefix]); |
|
168 |
} |
|
169 |
|
|
170 |
exports.get_all_names_it = function (prefix) |
|
171 |
{ |
|
172 |
return list_items_it(list_by_prefix[prefix]); |
|
173 |
} |
|
174 |
|
|
175 |
exports.get_all = function (prefix) |
|
176 |
{ |
|
177 |
return list_entries(list_by_prefix[prefix]); |
|
178 |
} |
|
8 |
/* |
|
9 |
* IMPORTS_START |
|
10 |
* IMPORT CONNECTION_TYPE |
|
11 |
* IMPORT TYPE_PREFIX |
|
12 |
* IMPORT list_prefixes |
|
13 |
* IMPORT make_once |
|
14 |
* IMPORT browser |
|
15 |
* IMPORTS_END |
|
16 |
*/ |
|
179 | 17 |
|
180 |
exports.get_all_it = function (prefix) |
|
181 |
{ |
|
182 |
return list_entries_it(list_by_prefix[prefix]); |
|
183 |
} |
|
18 |
var call_id = 0; |
|
19 |
var port; |
|
20 |
var calls_waiting = new Map(); |
|
21 |
|
|
22 |
function set_call_callback(resolve, reject, func, args) |
|
23 |
{ |
|
24 |
port.postMessage([call_id, func, args]); |
|
25 |
calls_waiting.set(call_id++, [resolve, reject]); |
|
26 |
} |
|
27 |
|
|
28 |
async function remote_call(func, args) |
|
29 |
{ |
|
30 |
return new Promise((resolve, reject) => |
|
31 |
set_call_callback(resolve, reject, func, args)); |
|
32 |
} |
|
33 |
|
|
34 |
function handle_message(message) |
|
35 |
{ |
|
36 |
let callbacks = calls_waiting.get(message.call_id); |
|
37 |
if (callbacks === undefined) { |
|
38 |
handle_change(message); |
|
39 |
return; |
|
40 |
} |
|
41 |
|
|
42 |
let [resolve, reject] = callbacks; |
|
43 |
calls_waiting.delete(message.call_id); |
|
44 |
if (message.error !== undefined) |
|
45 |
setTimeout(reject, 0, message.error); |
|
46 |
else |
|
47 |
setTimeout(resolve, 0, message.result); |
|
48 |
} |
|
49 |
|
|
50 |
function list(name, prefix) |
|
51 |
{ |
|
52 |
return {prefix, name, listeners : new Set()}; |
|
53 |
} |
|
54 |
|
|
55 |
var scripts = list("scripts", TYPE_PREFIX.SCRIPT); |
|
56 |
var bags = list("bags", TYPE_PREFIX.BAG); |
|
57 |
var pages = list("pages", TYPE_PREFIX.PAGE); |
|
58 |
|
|
59 |
const list_by_prefix = { |
|
60 |
[TYPE_PREFIX.SCRIPT] : scripts, |
|
61 |
[TYPE_PREFIX.BAG] : bags, |
|
62 |
[TYPE_PREFIX.PAGE] : pages |
|
63 |
}; |
|
64 |
|
|
65 |
var resolve_init; |
|
66 |
|
|
67 |
function handle_first_message(message) |
|
68 |
{ |
|
69 |
for (let prefix of Object.keys(message)) |
|
70 |
list_by_prefix[prefix].map = new Map(message[prefix]); |
|
71 |
|
|
72 |
port.onMessage.removeListener(handle_first_message); |
|
73 |
port.onMessage.addListener(handle_message); |
|
74 |
|
|
75 |
resolve_init(); |
|
76 |
} |
|
77 |
|
|
78 |
function handle_change(change) |
|
79 |
{ |
|
80 |
let list = list_by_prefix[change.prefix]; |
|
81 |
|
|
82 |
if (change.new_val === undefined) |
|
83 |
list.map.delete(change.item); |
|
84 |
else |
|
85 |
list.map.set(change.item, change.new_val); |
|
86 |
|
|
87 |
for (let listener_callback of list.listeners) |
|
88 |
listener_callback(change); |
|
89 |
} |
|
90 |
|
|
91 |
var exports = {}; |
|
92 |
|
|
93 |
function start_connection(resolve) |
|
94 |
{ |
|
95 |
resolve_init = resolve; |
|
96 |
port = browser.runtime.connect({name : CONNECTION_TYPE.REMOTE_STORAGE}); |
|
97 |
port.onMessage.addListener(handle_first_message); |
|
98 |
} |
|
99 |
|
|
100 |
async function init() { |
|
101 |
await new Promise((resolve, reject) => start_connection(resolve)); |
|
102 |
return exports; |
|
103 |
} |
|
104 |
|
|
105 |
for (let call_name of ["set", "remove", "replace", "clear"]) |
|
106 |
exports [call_name] = (...args) => remote_call(call_name, args); |
|
107 |
|
|
108 |
// TODO: Much of the code below is copy-pasted from /background/storage.mjs. |
|
109 |
// This should later be refactored into a separate module |
|
110 |
// to avoid duplication. |
|
111 |
|
|
112 |
/* |
|
113 |
* Facilitate listening to changes |
|
114 |
*/ |
|
184 | 115 |
|
185 |
window.get_storage = make_once(init); |
|
186 |
})(); |
|
116 |
exports.add_change_listener = function (cb, prefixes=list_prefixes) |
|
117 |
{ |
|
118 |
if (typeof(prefixes) === "string") |
|
119 |
prefixes = [prefixes]; |
|
120 |
|
|
121 |
for (let prefix of prefixes) |
|
122 |
list_by_prefix[prefix].listeners.add(cb); |
|
123 |
} |
|
124 |
|
|
125 |
exports.remove_change_listener = function (cb, prefixes=list_prefixes) |
|
126 |
{ |
|
127 |
if (typeof(prefixes) === "string") |
|
128 |
prefixes = [prefixes]; |
|
129 |
|
|
130 |
for (let prefix of prefixes) |
|
131 |
list_by_prefix[prefix].listeners.delete(cb); |
|
132 |
} |
|
133 |
|
|
134 |
/* Prepare some hepler functions to get elements of a list */ |
|
135 |
|
|
136 |
function list_items_it(list, with_values=false) |
|
137 |
{ |
|
138 |
return with_values ? list.map.entries() : list.map.keys(); |
|
139 |
} |
|
140 |
|
|
141 |
function list_entries_it(list) |
|
142 |
{ |
|
143 |
return list_items_it(list, true); |
|
144 |
} |
|
145 |
|
|
146 |
function list_items(list, with_values=false) |
|
147 |
{ |
|
148 |
let array = []; |
|
149 |
|
|
150 |
for (let item of list_items_it(list, with_values)) |
|
151 |
array.push(item); |
|
152 |
|
|
153 |
return array; |
|
154 |
} |
|
155 |
|
|
156 |
function list_entries(list) |
|
157 |
{ |
|
158 |
return list_items(list, true); |
|
159 |
} |
|
160 |
|
|
161 |
exports.get = function (prefix, item) |
|
162 |
{ |
|
163 |
return list_by_prefix[prefix].map.get(item); |
|
164 |
} |
|
165 |
|
|
166 |
exports.get_all_names = function (prefix) |
|
167 |
{ |
|
168 |
return list_items(list_by_prefix[prefix]); |
|
169 |
} |
|
170 |
|
|
171 |
exports.get_all_names_it = function (prefix) |
|
172 |
{ |
|
173 |
return list_items_it(list_by_prefix[prefix]); |
|
174 |
} |
|
175 |
|
|
176 |
exports.get_all = function (prefix) |
|
177 |
{ |
|
178 |
return list_entries(list_by_prefix[prefix]); |
|
179 |
} |
|
180 |
|
|
181 |
exports.get_all_it = function (prefix) |
|
182 |
{ |
|
183 |
return list_entries_it(list_by_prefix[prefix]); |
|
184 |
} |
|
185 |
|
|
186 |
const get_remote_storage = make_once(init); |
|
187 |
|
|
188 |
/* |
|
189 |
* EXPORTS_START |
|
190 |
* EXPORT get_remote_storage |
|
191 |
* EXPORTS_END |
|
192 |
*/ |
Also available in: Unified diff
emply an sh-based build system; make some changes to blocking