@e280/quay/x/logic/group.js

File-browser and outliner UI for the web

import { sub } from "@e280/stz";
import { signal } from "@benev/slate";
import { Dropzone } from "./aspects/dropzone.js";
import { TreeTrail } from "./aspects/tree-trail.js";
export class Group {
    config;
    trail;
    dropzone = new Dropzone(this);
    searchText = signal("");
    selectedFilter = signal("");
    selectedSort = signal("");
    on = {
        newFolder: sub(),
        move: sub(),
        delete: sub(),
        rename: sub(),
        upload: sub(),
        search: sub(),
        refresh: sub(),
    };
    constructor(config) {
        this.config = config;
        this.selectedFilter.value = config.defaultFilter;
        this.selectedSort.value = config.defaultSort;
        this.trail = new TreeTrail(config.root);
    }
    get permissions() {
        return this.config.permissions;
    }
    getFilterFn(filterKey) {
        return this.config.filters.get(filterKey) ?? (() => true);
    }
    getSearchFn(searchText) {
        const terms = searchText.trim().toLowerCase().split(/\s+/);
        return item => this.config.search(terms, item);
    }
    getSortFn(sortKey) {
        return this.config.sorts?.get(sortKey) ?? (() => 0);
    }
    sort(items) {
        const sortFn = this.getSortFn(this.selectedSort.value);
        return [...items].sort(sortFn);
    }
    matches(item) {
        const filterFn = this.getFilterFn(this.selectedFilter.value);
        const searchFn = this.getSearchFn(this.searchText.value);
        return filterFn(item) && searchFn(item);
    }
    move(item, target) {
        if (!this.permissions(item).move)
            throw new Error("move permission not granted");
        item.detach();
        target.attach(item);
        this.on.move.pub({ item, target });
    }
    delete(item) {
        if (!this.permissions(item).delete)
            throw new Error("delete permission not granted");
        item.destroy();
        this.on.delete.pub({ item });
    }
    rename(item, newName) {
        if (!this.permissions(item).rename)
            throw new Error("rename permission not granted");
        this.on.rename.pub({ item, newName });
    }
    upload(files, folder) {
        if (!this.permissions(folder).upload)
            throw new Error("upload permission not granted");
        this.on.upload.pub({ files, target: folder });
    }
    addFolder(parent) {
        if (!this.permissions(parent).newFolder)
            throw new Error("add folder permission not granted");
        this.on.newFolder.pub({ parent });
    }
    components = () => this.components;
}
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