forked from zhurui/management
32 lines
763 B
JavaScript
32 lines
763 B
JavaScript
|
import Parchment from 'parchment';
|
||
|
|
|
||
|
|
class IdentAttributor extends Parchment.Attributor.Class {
|
||
|
|
add(node, value) {
|
||
|
|
if (value === '+1' || value === '-1') {
|
||
|
|
let indent = this.value(node) || 0;
|
||
|
|
value = (value === '+1' ? (indent + 1) : (indent - 1));
|
||
|
|
}
|
||
|
|
if (value === 0) {
|
||
|
|
this.remove(node);
|
||
|
|
return true;
|
||
|
|
} else {
|
||
|
|
return super.add(node, value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
canAdd(node, value) {
|
||
|
|
return super.canAdd(node, value) || super.canAdd(node, parseInt(value));
|
||
|
|
}
|
||
|
|
|
||
|
|
value(node) {
|
||
|
|
return parseInt(super.value(node)) || undefined; // Don't return NaN
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
let IndentClass = new IdentAttributor('indent', 'ql-indent', {
|
||
|
|
scope: Parchment.Scope.BLOCK,
|
||
|
|
whitelist: [1, 2, 3, 4, 5, 6, 7, 8]
|
||
|
|
});
|
||
|
|
|
||
|
|
export { IndentClass };
|