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/*
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* IMPORTS_START
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* IMPORT TYPE_PREFIX
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* IMPORT raw_storage
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* IMPORT TYPE_NAME
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* IMPORT list_prefixes
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* IMPORT make_lock
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... | ... | |
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* IMPORT unlock
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* IMPORT make_once
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* IMPORT browser
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* IMPORT is_chrome
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* IMPORT observables
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* IMPORTS_END
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*/
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var exports = {};
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/* We're yet to decide how to handle errors... */
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/* Here are some basic wrappers for storage API functions */
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async function get(key)
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{
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try {
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/* Fix for fact that Chrome does not use promises here */
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let promise = is_chrome ?
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new Promise((resolve, reject) =>
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chrome.storage.local.get(key,
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val => resolve(val))) :
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browser.storage.local.get(key);
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return (await promise)[key];
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} catch (e) {
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console.log(e);
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}
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}
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async function set(key, value)
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{
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try {
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return browser.storage.local.set({[key]: value});
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} catch (e) {
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console.log(e);
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}
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}
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async function setn(keys_and_values)
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{
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let obj = Object();
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while (keys_and_values.length > 1) {
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let value = keys_and_values.pop();
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let key = keys_and_values.pop();
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obj[key] = value;
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}
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try {
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return browser.storage.local.set(obj);
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} catch (e) {
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console.log(e);
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}
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}
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async function set_var(name, value)
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{
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return set(TYPE_PREFIX.VAR + name, value);
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}
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async function get_var(name)
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{
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return get(TYPE_PREFIX.VAR + name);
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}
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/*
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* A special case of persisted variable is one that contains list
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* of items.
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*/
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/* A special case of persisted variable is one that contains list of items. */
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async function get_list_var(name)
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{
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let list = await get_var(name);
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let list = await raw_storage.get_var(name);
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return list === undefined ? [] : list;
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}
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... | ... | |
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let map = new Map();
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for (let item of await get_list_var(name))
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map.set(item, await get(prefix + item));
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map.set(item, await raw_storage.get(prefix + item));
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return {map, prefix, name, observable: observables.make(),
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lock: make_lock()};
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... | ... | |
175 |
116 |
}
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176 |
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async function _set_item(item, value, list)
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177 |
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{
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let key = list.prefix + item;
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let old_val = list.map.get(item);
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const key = list.prefix + item;
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const old_val = list.map.get(item);
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const set_obj = {[key]: value};
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if (old_val === undefined) {
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let items = list_items(list);
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const items = list_items(list);
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182 |
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items.push(item);
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await setn([key, value, "_" + list.name, items]);
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} else {
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await set(key, value);
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set_obj["_" + list.name] = items;
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186 |
126 |
}
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187 |
127 |
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list.map.set(item, value)
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|
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await raw_storage.set(set_obj);
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list.map.set(item, value);
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189 |
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let change = {
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const change = {
|
191 |
132 |
prefix : list.prefix,
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192 |
133 |
item,
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193 |
134 |
old_val,
|
... | ... | |
212 |
153 |
}
|
213 |
154 |
async function _remove_item(item, list)
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214 |
155 |
{
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215 |
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let old_val = list.map.get(item);
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|
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const old_val = list.map.get(item);
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216 |
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if (old_val === undefined)
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217 |
158 |
return;
|
218 |
159 |
|
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let key = list.prefix + item;
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220 |
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let items = list_items(list);
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221 |
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let index = items.indexOf(item);
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|
160 |
const items = list_items(list);
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|
161 |
const index = items.indexOf(item);
|
222 |
162 |
items.splice(index, 1);
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223 |
163 |
|
224 |
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await setn([key, undefined, "_" + list.name, items]);
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225 |
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164 |
await raw_storage.set({
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|
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[list.prefix + item]: undefined,
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["_" + list.name]: items
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|
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});
|
226 |
168 |
list.map.delete(item);
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227 |
169 |
|
228 |
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let change = {
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|
170 |
const change = {
|
229 |
171 |
prefix : list.prefix,
|
230 |
172 |
item,
|
231 |
173 |
old_val,
|
... | ... | |
247 |
189 |
}
|
248 |
190 |
async function _replace_item(old_item, new_item, list, new_val=undefined)
|
249 |
191 |
{
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250 |
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let old_val = list.map.get(old_item);
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|
192 |
const old_val = list.map.get(old_item);
|
251 |
193 |
if (new_val === undefined) {
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252 |
194 |
if (old_val === undefined)
|
253 |
195 |
return;
|
254 |
|
new_val = old_val
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|
196 |
new_val = old_val;
|
255 |
197 |
} else if (new_val === old_val && new_item === old_item) {
|
256 |
198 |
return old_val;
|
257 |
199 |
}
|
... | ... | |
261 |
203 |
return old_val;
|
262 |
204 |
}
|
263 |
205 |
|
264 |
|
let new_key = list.prefix + new_item;
|
265 |
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let old_key = list.prefix + old_item;
|
266 |
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let items = list_items(list);
|
267 |
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let index = items.indexOf(old_item);
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|
206 |
const items = list_items(list);
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|
207 |
const index = items.indexOf(old_item);
|
268 |
208 |
items[index] = new_item;
|
269 |
|
await setn([old_key, undefined, new_key, new_val,
|
270 |
|
"_" + list.name, items]);
|
271 |
209 |
|
|
210 |
await raw_storage.set({
|
|
211 |
[list.prefix + old_item]: undefined,
|
|
212 |
[list.prefix + new_item]: new_val,
|
|
213 |
["_" + list.name]: items
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|
214 |
});
|
272 |
215 |
list.map.delete(old_item);
|
273 |
216 |
|
274 |
|
let change = {
|
|
217 |
const change = {
|
275 |
218 |
prefix : list.prefix,
|
276 |
219 |
item : old_item,
|
277 |
220 |
old_val,
|
put simplest, asynchronous local storage operations in a separate file