neighbors.js

import * as Helpers from "../helpers";
import jQuery from "jquery";
import * as Config from "../../config";

export { NodeNeighborOverlay };

/**
 * Displays an overlay showing the neighbors of a node divided by the link type
 * that connects them.
 */
class NodeNeighborOverlay {
    constructor(graph, parentNode, infoOverlay, type = "link") {
        this.graph = graph;
        this.parentNode = parentNode;
        this.infoOverlay = infoOverlay;
        this.type = type;

        this.activeTabNav = null; // The currently selected tab handle
        this.activeTabContent = null; // The currently selected tab content

        this.tabContentPages = {};
        this.tabNavHandles = {};
    }

    /**
     * Creates the visible elements of the overlay.
     * Must be called after the graph has been initialized.
     */
    create() {
        const bottomContainerDiv = Helpers.createDiv(
            "bottom-container",
            this.parentNode
        );
        const coll = Helpers.createDiv(
            "button",
            bottomContainerDiv
        );
        coll.className = "collapsible";
        coll.innerText = "Nachbarn";
        var contentTabs = Helpers.createDiv(
            "content",
            bottomContainerDiv
        );
        coll.addEventListener("click", function() {
            if(contentTabs.style.display === "flex") {
                contentTabs.style.display = "none";
            } else {
                contentTabs.style.display = "flex";
            }
        });
        const colors =
            this.type === "link"
                ? this.graph.edgeColors
                : this.graph.nodeColors;
        for (const [cls, color] of Object.entries(colors)) {
            const collTab = Helpers.createDiv(
                "button",
                contentTabs
            );
            collTab.className = "collapsible";
            collTab.innerText = cls;
            collTab.style.backgroundColor = color;
            collTab.type = cls;
            const collTabContent = Helpers.createDiv(
                "content",
                contentTabs
            );
            collTabContent.innerText = "Example Text";
            collTab.addEventListener("click", function() {
                if(collTabContent.style.display === "flex") {
                    collTabContent.style.display = "none";
                } else {
                    collTabContent.style.display = "flex";
                }
            });
        }
    }

    /**
     * Clears the images from all tab content pages.
     */
    clearTabContentPages() {
        //TODO: Clear all content of content containers
        /*for (const page of Object.values(this.tabContentPages)) {
            jQuery(page).empty();
        }*/
    }

    /**
     * Creates a new image (with link) for the given target node.
     * @param target
     * @returns {HTMLDivElement}
     */
    createReference(target) {
        const linkDiv = document.createElement("div");
        linkDiv.className = "link-img";

        if ("image" in target) {
            const linkImage = document.createElement("img");
            linkImage.src =
                Config.PLUGIN_PATH + "datasets/images/" + target.image;
            linkDiv.appendChild(linkImage);
        }

        if ("name" in target) {
            Helpers.createHTMLElement("p", linkDiv, {
                className: "bottom-container-link-text",
                innerText: target.name,
            });
        }

        jQuery(linkDiv).on("click", () => {
            this.graph.focusOnNode(target);
            this.infoOverlay.updateInfoOverlay(target);
        });
        return linkDiv;
    }

    /**
     * Updates all tabs to have content matching the given node.
     * @param node
     */
    updateTabs(node) {
        //TODO: Write update function to update content container
        /*this.clearTabContentPages();

        for (const link of node.links) {
            const target = link.source == node ? link.target : link.source;
            const reference = this.createReference(target);
            if (this.type === "link") {
                this.tabContentPages[link.type].appendChild(reference);
            } else {
                this.tabContentPages[target.type].appendChild(reference);
            }
        }*/
    }
}