56 lines
1.5 KiB
JavaScript
56 lines
1.5 KiB
JavaScript
|
/*
|
||
|
|
* Copyright (C) 2019 Alex Yatskov <alex@foosoft.net>
|
||
|
|
* Author: Alex Yatskov <alex@foosoft.net>
|
||
|
|
*
|
||
|
|
* This program 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.
|
||
|
|
*
|
||
|
|
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
class DisplayContext {
|
||
|
|
constructor(type, definitions, context) {
|
||
|
|
this.type = type;
|
||
|
|
this.definitions = definitions;
|
||
|
|
this.context = context;
|
||
|
|
}
|
||
|
|
|
||
|
|
get(key) {
|
||
|
|
return this.context[key];
|
||
|
|
}
|
||
|
|
|
||
|
|
set(key, value) {
|
||
|
|
this.context[key] = value;
|
||
|
|
}
|
||
|
|
|
||
|
|
update(data) {
|
||
|
|
Object.assign(this.context, data);
|
||
|
|
}
|
||
|
|
|
||
|
|
get previous() {
|
||
|
|
return this.context.previous;
|
||
|
|
}
|
||
|
|
|
||
|
|
get next() {
|
||
|
|
return this.context.next;
|
||
|
|
}
|
||
|
|
|
||
|
|
static push(self, type, definitions, context) {
|
||
|
|
const newContext = new DisplayContext(type, definitions, context);
|
||
|
|
if (self !== null) {
|
||
|
|
newContext.update({previous: self});
|
||
|
|
self.update({next: newContext});
|
||
|
|
}
|
||
|
|
return newContext;
|
||
|
|
}
|
||
|
|
}
|