Add miniPaint as new frontend base

frontend/src/js/actions/reset-layers.js

@@ -0,0 +1,66 @@
+import app from '../app.js';
+import config from '../config.js';
+import { Base_action } from './base.js';
+
+export class Reset_layers_action extends Base_action {
+	/*
+	 * removes all layers
+	 */
+	constructor(auto_insert) {
+		super('reset_layers', 'Reset Layers');
+		this.auto_insert = auto_insert;
+		this.previous_auto_increment = null;
+		this.delete_actions = null;
+		this.insert_action = null;
+	}
+	async do() {
+		super.do();
+		const auto_insert = this.auto_insert;
+		this.previous_auto_increment = app.Layers.auto_increment;
+
+		this.delete_actions = [];
+		for (let i = config.layers.length - 1; i >= 0; i--) {
+			const delete_action = new app.Actions.Delete_layer_action(config.layers[i].id, true);
+			await delete_action.do();
+			this.delete_actions.push(delete_action);
+		}
+		app.Layers.auto_increment = 1;
+
+		if (auto_insert != undefined && auto_insert === true) {
+			const settings = {};
+			this.insert_action = new app.Actions.Insert_layer_action(settings);
+			await this.insert_action.do();
+		}
+
+		app.Layers.render();
+		app.GUI.GUI_layers.render_layers();
+	}
+	async undo() {
+		super.undo();
+		if (this.insert_action) {
+			await this.insert_action.undo();
+			this.insert_action.free();
+			this.insert_action = null;
+		}
+		for (let i = this.delete_actions.length - 1; i >= 0; i--) {
+			await this.delete_actions[i].undo();
+			this.delete_actions[i].free();
+		}
+		app.Layers.auto_increment = this.previous_auto_increment;
+
+		app.Layers.render();
+		app.GUI.GUI_layers.render_layers();
+	}
+	free() {
+		if (this.insert_action) {
+			this.insert_action.free();
+			this.insert_action = null;
+		}
+		if (this.delete_actions) {
+			for (let action of this.delete_actions) {
+				action.free();
+			}
+			this.delete_actions = null;
+		}
+	}
+}