openethereum/js/packages/ui/IconCache/iconCache.js
Jaco Greeff 49fdd23d58 Ui 2 move to packages/* (#6113)
* Move secureApi to shell

* Extract isTestnet test

* Use mobx + subscriptions for status

* Re-add status indicator

* Add lerna

* Move intial packages to js/packages

* Move 3rdparty/{email,sms}-verification to correct location

* Move package.json & README to library src

* Move tests for library packages

* Move views & dapps to packages

* Move i18n to root

* Move shell to actual src (main app)

* Remove ~ references

* Change ~ to root (explicit imports)

* Finalise convert of ~

* Move views into dapps as well

* Move dapps to packages/

* Fix references

* Update css

* Update test spec locations

* Update tests

* Case fix

* Skip flakey tests

* Update enzyme

* Skip previously ignored tests

* Allow empty api for hw

* Re-add theme for embed
2017-07-21 15:46:53 +02:00

55 lines
1.5 KiB
JavaScript

// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
import { action, observable } from 'mobx';
import { bytesToHex } from '@parity/api/util/format';
const ZERO = '0x0000000000000000000000000000000000000000000000000000000000000000';
const API_PATH = '/api/content/';
let instance = null;
export default class IconCache {
@observable images = {};
@action add (address, imageOrHash, isImage = false) {
this.images = Object.assign({}, this.images, {
[address]: isImage
? imageOrHash
: IconCache.hashToImage(imageOrHash)
});
}
static hashToImage (_hash) {
const hash = _hash
? bytesToHex(_hash)
: ZERO;
return hash === ZERO
? null
: `${API_PATH}${hash.substr(2)}`;
}
static get (force = false) {
if (!instance || force) {
instance = new IconCache();
}
return instance;
}
}