mirror of
https://github.com/zadam/trilium.git
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672 lines
22 KiB
TypeScript
672 lines
22 KiB
TypeScript
import server from "../services/server.js";
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import attributeService from "../services/attributes.js";
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import hoistedNoteService from "../services/hoisted_note.js";
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import appContext, { type EventData } from "../components/app_context.js";
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import NoteContextAwareWidget from "./note_context_aware_widget.js";
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import linkContextMenuService from "../menus/link_context_menu.js";
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import utils from "../services/utils.js";
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import { t } from "../services/i18n.js";
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import type ForceGraph from "force-graph";
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import type { GraphData, LinkObject, NodeObject } from "force-graph";
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import type FNote from "../entities/fnote.js";
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const esc = utils.escapeHtml;
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const TPL = /*html*/`<div class="note-map-widget">
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<style>
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.note-detail-note-map {
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height: 100%;
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overflow: hidden;
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}
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/* Style Ui Element to Drag Nodes */
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.fixnodes-type-switcher {
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display: flex;
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align-items: center;
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z-index: 10; /* should be below dropdown (note actions) */
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border-radius: .2rem;
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}
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.fixnodes-type-switcher button.toggled {
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background: var(--active-item-background-color);
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color: var(--active-item-text-color);
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}
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/* Start of styling the slider */
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.fixnodes-type-switcher input[type="range"] {
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/* removing default appearance */
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-webkit-appearance: none;
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appearance: none;
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margin-left: 15px;
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width: 150px;
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}
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/* Changing slider tracker */
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.fixnodes-type-switcher input[type="range"]::-webkit-slider-runnable-track {
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height: 4px;
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background-color: var(--main-border-color);
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border-radius: 4px;
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}
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/* Changing Slider Thumb */
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.fixnodes-type-switcher input[type="range"]::-webkit-slider-thumb {
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/* removing default appearance */
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-webkit-appearance: none;
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appearance: none;
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/* creating a custom design */
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height: 15px;
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width: 15px;
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margin-top:-5px;
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background-color: var(--accented-background-color);
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border: 1px solid var(--main-text-color);
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border-radius: 50%;
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}
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.fixnodes-type-switcher input[type="range"]::-moz-range-track {
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background-color: var(--main-border-color);
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border-radius: 4px;
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}
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.fixnodes-type-switcher input[type="range"]::-moz-range-thumb {
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background-color: var(--accented-background-color);
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border-color: var(--main-text-color);
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height: 10px;
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width: 10px;
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}
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/* End of styling the slider */
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</style>
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<div class="btn-group btn-group-sm map-type-switcher content-floating-buttons top-left" role="group">
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<button type="button" class="btn bx bx-network-chart tn-tool-button" title="${t("note-map.button-link-map")}" data-type="link"></button>
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<button type="button" class="btn bx bx-sitemap tn-tool-button" title="${t("note-map.button-tree-map")}" data-type="tree"></button>
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</div>
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<! UI for dragging Notes and link force >
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<div class="btn-group-sm fixnodes-type-switcher content-floating-buttons bottom-left" role="group">
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<button type="button" data-toggle="button" class="btn bx bx-lock-alt tn-tool-button" title="${t("note_map.fix-nodes")}" data-type="moveable"></button>
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<input type="range" class="slider" min="1" title="${t("note_map.link-distance")}" max="100" value="40" >
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</div>
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<div class="style-resolver"></div>
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<div class="note-map-container"></div>
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</div>`;
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type WidgetMode = "type" | "ribbon";
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type MapType = "tree" | "link";
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type Data = GraphData<NodeObject, LinkObject<NodeObject>>;
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interface Node extends NodeObject {
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id: string;
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name: string;
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type: string;
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color: string;
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}
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interface Link extends LinkObject<NodeObject> {
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id: string;
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name: string;
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x: number;
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y: number;
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source: Node;
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target: Node;
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}
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interface NotesAndRelationsData {
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nodes: Node[];
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links: {
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id: string;
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source: string;
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target: string;
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name: string;
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}[];
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}
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// Replace
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interface ResponseLink {
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key: string;
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sourceNoteId: string;
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targetNoteId: string;
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name: string;
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}
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interface PostNotesMapResponse {
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notes: string[];
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links: ResponseLink[];
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noteIdToDescendantCountMap: Record<string, number>;
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}
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interface GroupedLink {
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id: string;
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sourceNoteId: string;
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targetNoteId: string;
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names: string[];
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}
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interface CssData {
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fontFamily: string;
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textColor: string;
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mutedTextColor: string;
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}
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export default class NoteMapWidget extends NoteContextAwareWidget {
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private fixNodes: boolean;
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private widgetMode: WidgetMode;
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private mapType?: MapType;
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private cssData!: CssData;
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private themeStyle!: string;
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private $container!: JQuery<HTMLElement>;
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private $styleResolver!: JQuery<HTMLElement>;
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private $fixNodesButton!: JQuery<HTMLElement>;
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graph!: ForceGraph;
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private noteIdToSizeMap!: Record<string, number>;
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private zoomLevel!: number;
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private nodes!: Node[];
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constructor(widgetMode: WidgetMode) {
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super();
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this.fixNodes = false; // needed to save the status of the UI element. Is set later in the code
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this.widgetMode = widgetMode; // 'type' or 'ribbon'
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}
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doRender() {
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this.$widget = $(TPL);
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const documentStyle = window.getComputedStyle(document.documentElement);
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this.themeStyle = documentStyle.getPropertyValue("--theme-style")?.trim();
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this.$container = this.$widget.find(".note-map-container");
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this.$styleResolver = this.$widget.find(".style-resolver");
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this.$fixNodesButton = this.$widget.find(".fixnodes-type-switcher > button");
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new ResizeObserver(() => this.setDimensions()).observe(this.$container[0]);
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this.$widget.find(".map-type-switcher button").on("click", async (e) => {
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const type = $(e.target).closest("button").attr("data-type");
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await attributeService.setLabel(this.noteId ?? "", "mapType", type);
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});
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// Reading the status of the Drag nodes Ui element. Changing it´s color when activated.
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// Reading Force value of the link distance.
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this.$fixNodesButton.on("click", async (event) => {
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this.fixNodes = !this.fixNodes;
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this.$fixNodesButton.toggleClass("toggled", this.fixNodes);
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});
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super.doRender();
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}
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setDimensions() {
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if (!this.graph) {
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// no graph has been even rendered
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return;
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}
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const $parent = this.$widget.parent();
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this.graph
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.height($parent.height() || 0)
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.width($parent.width() || 0);
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}
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async refreshWithNote(note: FNote) {
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this.$widget.show();
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this.cssData = {
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fontFamily: this.$container.css("font-family"),
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textColor: this.rgb2hex(this.$container.css("color")),
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mutedTextColor: this.rgb2hex(this.$styleResolver.css("color"))
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};
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this.mapType = note.getLabelValue("mapType") === "tree" ? "tree" : "link";
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//variables for the hover effekt. We have to save the neighbours of a hovered node in a set. Also we need to save the links as well as the hovered node itself
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let hoverNode: NodeObject | null = null;
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const highlightLinks = new Set();
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const neighbours = new Set();
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const ForceGraph = (await import("force-graph")).default;
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this.graph = new ForceGraph(this.$container[0])
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.width(this.$container.width() || 0)
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.height(this.$container.height() || 0)
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.onZoom((zoom) => this.setZoomLevel(zoom.k))
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.d3AlphaDecay(0.01)
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.d3VelocityDecay(0.08)
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//Code to fixate nodes when dragged
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.onNodeDragEnd((node) => {
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if (this.fixNodes) {
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node.fx = node.x;
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node.fy = node.y;
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} else {
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node.fx = undefined;
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node.fy = undefined;
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}
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})
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//check if hovered and set the hovernode variable, saving the hovered node object into it. Clear links variable everytime you hover. Without clearing links will stay highlighted
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.onNodeHover((node) => {
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hoverNode = node || null;
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highlightLinks.clear();
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})
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// set link width to immitate a highlight effekt. Checking the condition if any links are saved in the previous defined set highlightlinks
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.linkWidth((link) => (highlightLinks.has(link) ? 3 : 0.4))
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.linkColor((link) => (highlightLinks.has(link) ? "white" : this.cssData.mutedTextColor))
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.linkDirectionalArrowLength(4)
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.linkDirectionalArrowRelPos(0.95)
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// main code for highlighting hovered nodes and neighbours. here we "style" the nodes. the nodes are rendered several hundred times per second.
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.nodeCanvasObject((_node, ctx) => {
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const node = _node as Node;
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if (hoverNode == node) {
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//paint only hovered node
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this.paintNode(node, "#661822", ctx);
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neighbours.clear(); //clearing neighbours or the effect would be maintained after hovering is over
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for (const _link of data.links) {
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const link = _link as unknown as Link;
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//check if node is part of a link in the canvas, if so add it´s neighbours and related links to the previous defined variables to paint the nodes
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if (link.source.id == node.id || link.target.id == node.id) {
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neighbours.add(link.source);
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neighbours.add(link.target);
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highlightLinks.add(link);
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neighbours.delete(node);
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}
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}
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} else if (neighbours.has(node) && hoverNode != null) {
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//paint neighbours
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this.paintNode(node, "#9d6363", ctx);
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} else {
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this.paintNode(node, this.getColorForNode(node), ctx); //paint rest of nodes in canvas
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}
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})
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.nodePointerAreaPaint((node, _, ctx) => this.paintNode(node as Node, this.getColorForNode(node as Node), ctx))
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.nodePointerAreaPaint((node, color, ctx) => {
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if (!node.id) {
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return;
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}
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ctx.fillStyle = color;
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ctx.beginPath();
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if (node.x && node.y) {
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ctx.arc(node.x, node.y, this.noteIdToSizeMap[node.id], 0, 2 * Math.PI, false);
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}
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ctx.fill();
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})
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.nodeLabel((node) => esc((node as Node).name))
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.maxZoom(7)
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.warmupTicks(30)
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.onNodeClick((node) => {
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if (node.id) {
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appContext.tabManager.getActiveContext()?.setNote((node as Node).id);
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}
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})
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.onNodeRightClick((node, e) => {
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if (node.id) {
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linkContextMenuService.openContextMenu((node as Node).id, e);
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}
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});
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if (this.mapType === "link") {
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this.graph
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.linkLabel((l) => `${esc((l as Link).source.name)} - <strong>${esc((l as Link).name)}</strong> - ${esc((l as Link).target.name)}`)
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.linkCanvasObject((link, ctx) => this.paintLink(link as Link, ctx))
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.linkCanvasObjectMode(() => "after");
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}
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const mapRootNoteId = this.getMapRootNoteId();
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const labelValues = (name: string) => this.note?.getLabels(name).map(l => l.value) ?? [];
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const excludeRelations = labelValues("mapExcludeRelation");
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const includeRelations = labelValues("mapIncludeRelation");
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const data = await this.loadNotesAndRelations(mapRootNoteId, excludeRelations, includeRelations);
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const nodeLinkRatio = data.nodes.length / data.links.length;
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const magnifiedRatio = Math.pow(nodeLinkRatio, 1.5);
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const charge = -20 / magnifiedRatio;
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const boundedCharge = Math.min(-3, charge);
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let distancevalue = 40; // default value for the link force of the nodes
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this.$widget.find(".fixnodes-type-switcher input").on("change", async (e) => {
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distancevalue = parseInt(e.target.closest("input")?.value ?? "0");
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this.graph.d3Force("link")?.distance(distancevalue);
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this.renderData(data);
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});
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this.graph.d3Force("center")?.strength(0.2);
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this.graph.d3Force("charge")?.strength(boundedCharge);
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this.graph.d3Force("charge")?.distanceMax(1000);
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this.renderData(data);
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}
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getMapRootNoteId(): string {
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if (this.noteId && this.widgetMode === "ribbon") {
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return this.noteId;
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}
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let mapRootNoteId = this.note?.getLabelValue("mapRootNoteId");
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if (mapRootNoteId === "hoisted") {
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mapRootNoteId = hoistedNoteService.getHoistedNoteId();
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} else if (!mapRootNoteId) {
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mapRootNoteId = appContext.tabManager.getActiveContext()?.parentNoteId;
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}
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return mapRootNoteId ?? "";
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}
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getColorForNode(node: Node) {
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if (node.color) {
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return node.color;
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} else if (this.widgetMode === "ribbon" && node.id === this.noteId) {
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return "red"; // subtree root mark as red
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} else {
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return this.generateColorFromString(node.type);
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}
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}
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generateColorFromString(str: string) {
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if (this.themeStyle === "dark") {
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str = `0${str}`; // magic lightning modifier
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}
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let hash = 0;
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for (let i = 0; i < str.length; i++) {
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hash = str.charCodeAt(i) + ((hash << 5) - hash);
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}
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let color = "#";
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for (let i = 0; i < 3; i++) {
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const value = (hash >> (i * 8)) & 0xff;
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color += `00${value.toString(16)}`.substr(-2);
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}
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return color;
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}
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rgb2hex(rgb: string) {
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return `#${(rgb.match(/^rgb\((\d+),\s*(\d+),\s*(\d+)\)$/) || [])
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.slice(1)
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.map((n) => parseInt(n, 10).toString(16).padStart(2, "0"))
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.join("")}`;
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}
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setZoomLevel(level: number) {
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this.zoomLevel = level;
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}
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paintNode(node: Node, color: string, ctx: CanvasRenderingContext2D) {
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const { x, y } = node;
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if (!x || !y) {
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return;
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}
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const size = this.noteIdToSizeMap[node.id];
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ctx.fillStyle = color;
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ctx.beginPath();
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ctx.arc(x, y, size * 0.8, 0, 2 * Math.PI, false);
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ctx.fill();
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const toRender = this.zoomLevel > 2 || (this.zoomLevel > 1 && size > 6) || (this.zoomLevel > 0.3 && size > 10);
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if (!toRender) {
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return;
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}
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ctx.fillStyle = this.cssData.textColor;
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ctx.font = `${size}px ${this.cssData.fontFamily}`;
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ctx.textAlign = "center";
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ctx.textBaseline = "middle";
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let title = node.name;
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if (title.length > 15) {
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title = `${title.substr(0, 15)}...`;
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}
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ctx.fillText(title, x, y + Math.round(size * 1.5));
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}
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paintLink(link: Link, ctx: CanvasRenderingContext2D) {
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if (this.zoomLevel < 5) {
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return;
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}
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ctx.font = `3px ${this.cssData.fontFamily}`;
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ctx.textAlign = "center";
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ctx.textBaseline = "middle";
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ctx.fillStyle = this.cssData.mutedTextColor;
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const { source, target } = link;
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if (typeof source !== "object" || typeof target !== "object") {
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return;
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}
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if (source.x && source.y && target.x && target.y) {
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const x = (source.x + target.x) / 2;
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const y = (source.y + target.y) / 2;
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ctx.save();
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ctx.translate(x, y);
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const deltaY = source.y - target.y;
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const deltaX = source.x - target.x;
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let angle = Math.atan2(deltaY, deltaX);
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let moveY = 2;
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if (angle < -Math.PI / 2 || angle > Math.PI / 2) {
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angle += Math.PI;
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moveY = -2;
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}
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ctx.rotate(angle);
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ctx.fillText(link.name, 0, moveY);
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}
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ctx.restore();
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}
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async loadNotesAndRelations(mapRootNoteId: string, excludeRelations: string[], includeRelations: string[]): Promise<NotesAndRelationsData> {
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const resp = await server.post<PostNotesMapResponse>(`note-map/${mapRootNoteId}/${this.mapType}`, {
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excludeRelations, includeRelations
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});
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this.calculateNodeSizes(resp);
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const links = this.getGroupedLinks(resp.links);
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this.nodes = resp.notes.map(([noteId, title, type, color]) => ({
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id: noteId,
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name: title,
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type: type,
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color: color
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}));
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return {
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nodes: this.nodes,
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links: links.map((link) => ({
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id: `${link.sourceNoteId}-${link.targetNoteId}`,
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source: link.sourceNoteId,
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target: link.targetNoteId,
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name: link.names.join(", ")
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}))
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};
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}
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getGroupedLinks(links: ResponseLink[]): GroupedLink[] {
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const linksGroupedBySourceTarget: Record<string, GroupedLink> = {};
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|
||
for (const link of links) {
|
||
const key = `${link.sourceNoteId}-${link.targetNoteId}`;
|
||
|
||
if (key in linksGroupedBySourceTarget) {
|
||
if (!linksGroupedBySourceTarget[key].names.includes(link.name)) {
|
||
linksGroupedBySourceTarget[key].names.push(link.name);
|
||
}
|
||
} else {
|
||
linksGroupedBySourceTarget[key] = {
|
||
id: key,
|
||
sourceNoteId: link.sourceNoteId,
|
||
targetNoteId: link.targetNoteId,
|
||
names: [link.name]
|
||
};
|
||
}
|
||
}
|
||
|
||
return Object.values(linksGroupedBySourceTarget);
|
||
}
|
||
|
||
calculateNodeSizes(resp: PostNotesMapResponse) {
|
||
this.noteIdToSizeMap = {};
|
||
|
||
if (this.mapType === "tree") {
|
||
const { noteIdToDescendantCountMap } = resp;
|
||
|
||
for (const noteId in noteIdToDescendantCountMap) {
|
||
this.noteIdToSizeMap[noteId] = 4;
|
||
|
||
const count = noteIdToDescendantCountMap[noteId];
|
||
|
||
if (count > 0) {
|
||
this.noteIdToSizeMap[noteId] += 1 + Math.round(Math.log(count) / Math.log(1.5));
|
||
}
|
||
}
|
||
} else if (this.mapType === "link") {
|
||
const noteIdToLinkCount: Record<string, number> = {};
|
||
|
||
for (const link of resp.links) {
|
||
noteIdToLinkCount[link.targetNoteId] = 1 + (noteIdToLinkCount[link.targetNoteId] || 0);
|
||
}
|
||
|
||
for (const [noteId] of resp.notes) {
|
||
this.noteIdToSizeMap[noteId] = 4;
|
||
|
||
if (noteId in noteIdToLinkCount) {
|
||
this.noteIdToSizeMap[noteId] += Math.min(Math.pow(noteIdToLinkCount[noteId], 0.5), 15);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
renderData(data: Data) {
|
||
this.graph.graphData(data);
|
||
|
||
if (this.widgetMode === "ribbon" && this.note?.type !== "search") {
|
||
setTimeout(() => {
|
||
this.setDimensions();
|
||
|
||
const subGraphNoteIds = this.getSubGraphConnectedToCurrentNote(data);
|
||
|
||
this.graph.zoomToFit(400, 50, (node) => subGraphNoteIds.has(node.id));
|
||
|
||
if (subGraphNoteIds.size < 30) {
|
||
this.graph.d3VelocityDecay(0.4);
|
||
}
|
||
}, 1000);
|
||
} else {
|
||
if (data.nodes.length > 1) {
|
||
setTimeout(() => {
|
||
this.setDimensions();
|
||
|
||
const noteIdsWithLinks = this.getNoteIdsWithLinks(data);
|
||
|
||
if (noteIdsWithLinks.size > 0) {
|
||
this.graph.zoomToFit(400, 30, (node) => noteIdsWithLinks.has(node.id ?? ""));
|
||
}
|
||
|
||
if (noteIdsWithLinks.size < 30) {
|
||
this.graph.d3VelocityDecay(0.4);
|
||
}
|
||
}, 1000);
|
||
}
|
||
}
|
||
}
|
||
|
||
getNoteIdsWithLinks(data: Data) {
|
||
const noteIds = new Set<string | number>();
|
||
|
||
for (const link of data.links) {
|
||
if (typeof link.source === "object" && link.source.id) {
|
||
noteIds.add(link.source.id);
|
||
}
|
||
if (typeof link.target === "object" && link.target.id) {
|
||
noteIds.add(link.target.id);
|
||
}
|
||
}
|
||
|
||
return noteIds;
|
||
}
|
||
|
||
getSubGraphConnectedToCurrentNote(data: Data) {
|
||
function getGroupedLinks(links: LinkObject<NodeObject>[], type: "source" | "target") {
|
||
const map: Record<string | number, LinkObject<NodeObject>[]> = {};
|
||
|
||
for (const link of links) {
|
||
if (typeof link[type] !== "object") {
|
||
continue;
|
||
}
|
||
|
||
const key = link[type].id;
|
||
if (key) {
|
||
map[key] = map[key] || [];
|
||
map[key].push(link);
|
||
}
|
||
}
|
||
|
||
return map;
|
||
}
|
||
|
||
const linksBySource = getGroupedLinks(data.links, "source");
|
||
const linksByTarget = getGroupedLinks(data.links, "target");
|
||
|
||
const subGraphNoteIds = new Set();
|
||
|
||
function traverseGraph(noteId?: string | number) {
|
||
if (!noteId || subGraphNoteIds.has(noteId)) {
|
||
return;
|
||
}
|
||
|
||
subGraphNoteIds.add(noteId);
|
||
|
||
for (const link of linksBySource[noteId] || []) {
|
||
if (typeof link.target === "object") {
|
||
traverseGraph(link.target?.id);
|
||
}
|
||
}
|
||
|
||
for (const link of linksByTarget[noteId] || []) {
|
||
if (typeof link.source === "object") {
|
||
traverseGraph(link.source?.id);
|
||
}
|
||
}
|
||
}
|
||
|
||
traverseGraph(this.noteId);
|
||
return subGraphNoteIds;
|
||
}
|
||
|
||
cleanup() {
|
||
this.$container.html("");
|
||
}
|
||
|
||
entitiesReloadedEvent({ loadResults }: EventData<"entitiesReloaded">) {
|
||
if (loadResults.getAttributeRows(this.componentId)
|
||
.find((attr) => attr.type === "label" && ["mapType", "mapRootNoteId"].includes(attr.name || "") && attributeService.isAffecting(attr, this.note))) {
|
||
this.refresh();
|
||
}
|
||
}
|
||
}
|