diff --git a/display/graph.js b/display/graph.js
index e54a14fe2a058a6bba0f85a87414caf5e048d6d1..e24ce446274231b7828c6eabe3c0286888181cc4 100644
--- a/display/graph.js
+++ b/display/graph.js
@@ -2,7 +2,7 @@ import * as Config from "../config";
import * as Helpers from "./helpers";
import { loadGraphJson } from "../datasets/datasets";
import { NodeInfoOverlay } from "./overlays/nodeinfo";
-import { LinkSelectionOverlay } from "./overlays/linkselection";
+import { FilterOverlay } from "./overlays/filteroverlay";
import * as THREE from "three";
import ForceGraph3D from "3d-force-graph";
@@ -33,9 +33,10 @@ class Graph {
this.idToNode = {};
this.firstTick = true;
- this.infooverlay = null;
+ this.infoOverlay = null;
this.edgeTypeVisibility = {};
+ this.nodeTypeVisibility = {};
this.loadGraph(spaceId);
}
@@ -59,7 +60,7 @@ class Graph {
.linkWidth((link) => this.getLinkWidth(link))
.onNodeClick((node) => {
this.focusOnNode(node);
- this.infooverlay.updateInfoOverlay(node);
+ this.infoOverlay.updateInfoOverlay(node);
})
.onNodeHover((node) => {
this.onNodeHover(node);
@@ -101,9 +102,13 @@ class Graph {
document.addEventListener("fullscreenchange", () => this.resize());
window.addEventListener("resize", () => this.resize());
+ // Initialize visibility states
this.getLinkClasses().forEach(
(item) => (this.edgeTypeVisibility[item] = true)
);
+ this.getNodeClasses().forEach(
+ (item) => (this.nodeTypeVisibility[item] = true)
+ );
this.firstTick = false;
}
}
@@ -150,7 +155,7 @@ class Graph {
this.graph
.graphData()
.nodes.forEach((node) => nodeClasses.push(node.type));
- return [...new Set(nodeClasses)];
+ return [...new Set(nodeClasses)].map((c) => String(c));
}
onNodeHover(node) {
@@ -215,18 +220,39 @@ class Graph {
}
}
- hideLinkType(type) {
- this.edgeTypeVisibility[type] = false;
+ toggleNodeVisibility(type) {
+ if (this.nodeTypeVisibility[type]) {
+ this.hideNodeType(type);
+ } else {
+ this.showNodeType(type);
+ }
+ }
+
+ updateVisibility() {
this.updateGraphData();
+ this.removeFloatingLinks();
this.updateNodeData();
this.removeFloatingNodes();
}
+ hideLinkType(type) {
+ this.edgeTypeVisibility[type] = false;
+ this.updateVisibility();
+ }
+
showLinkType(type) {
this.edgeTypeVisibility[type] = true;
- this.updateGraphData();
- this.updateNodeData();
- this.removeFloatingNodes();
+ this.updateVisibility();
+ }
+
+ hideNodeType(type) {
+ this.nodeTypeVisibility[type] = false;
+ this.updateVisibility();
+ }
+
+ showNodeType(type) {
+ this.nodeTypeVisibility[type] = true;
+ this.updateVisibility();
}
removeFloatingNodes() {
@@ -239,9 +265,25 @@ class Graph {
this.graph.graphData(data);
}
+ removeFloatingLinks() {
+ const gData = this.graph.graphData();
+ const links = gData.links.filter(
+ (link) =>
+ this.nodeTypeVisibility[link.target.type] &
+ this.nodeTypeVisibility[link.source.type]
+ );
+ const data = {
+ nodes: gData.nodes,
+ links: links,
+ };
+ this.graph.graphData(data);
+ }
+
updateGraphData() {
const data = {
- nodes: this.gData.nodes,
+ nodes: this.gData.nodes.filter(
+ (l) => this.nodeTypeVisibility[l.type]
+ ),
links: this.gData.links.filter(
(l) => this.edgeTypeVisibility[l.type]
),
@@ -450,8 +492,10 @@ class Graph {
}
function loadComponents() {
- linkoverlay.create();
- infooverlay.create();
+ filterOverlay.create();
+ infoOverlay.create();
+ filterOverlay.filterChangedCallback = (cls) =>
+ infoOverlay.bottomMenu.toggleTabVisibility(cls);
createFullScreenButton();
}
@@ -471,14 +515,14 @@ function createFullScreenButton() {
sceneNode.appendChild(overlayNode);
}
-var G;
-var linkoverlay;
-var infooverlay;
+let G = null;
+let filterOverlay = null;
+let infoOverlay = null;
// Only execute, if corresponding dom is present
if (document.getElementById("3d-graph") !== null) {
G = new Graph(space_id); // space_id defined globaly through knowledge-space.php
- linkoverlay = new LinkSelectionOverlay(G);
- infooverlay = new NodeInfoOverlay(G);
- G.infooverlay = infooverlay;
+ filterOverlay = new FilterOverlay(G, "node");
+ infoOverlay = new NodeInfoOverlay(G);
+ G.infoOverlay = infoOverlay;
}
diff --git a/display/overlays/linkselection.js b/display/overlays/filteroverlay.js
similarity index 57%
rename from display/overlays/linkselection.js
rename to display/overlays/filteroverlay.js
index fb43bc926aac6c5ff15b311d33dbe8cc716742ea..76db39e8c433dc237899646036cdabf79ba57aba 100644
--- a/display/overlays/linkselection.js
+++ b/display/overlays/filteroverlay.js
@@ -1,19 +1,22 @@
import * as Helpers from "../helpers";
import jQuery from "jquery";
-export { LinkSelectionOverlay };
+export { FilterOverlay };
/**
- * Represents an overlay showing the meaning of different edge colors.
- * Offers the ability to toggle certain edge types.
+ * Represents an overlay showing the meaning of different link/node colors.
+ * Offers the ability to toggle certain types.
*/
-class LinkSelectionOverlay {
+class FilterOverlay {
/**
- * Creates the link overlay for a given graph object.
+ * Creates the overlay for a given graph object.
* @param {Graph} graph The graph object.
+ * @param {String} type The selection type. Can be "link" or "node".
*/
- constructor(graph) {
+ constructor(graph, type = "link") {
this.graph = graph;
+ this.type = type;
+ this.filterChangedCallback = (type) => void type;
}
/**
@@ -26,20 +29,23 @@ class LinkSelectionOverlay {
overlayNode.className = "link-overlay";
sceneNode.insertBefore(overlayNode, sceneNode.childNodes[2]);
- const linkClasses = this.graph.getLinkClasses();
+ const classes =
+ this.type === "link"
+ ? this.graph.getLinkClasses()
+ : this.graph.getNodeClasses();
const chars = Math.max.apply(
Math,
- linkClasses.map(function (c) {
+ classes.map(function (c) {
return c.length;
})
);
- for (const link of linkClasses) {
+ for (const link of classes) {
const relation = Helpers.createDiv("relation", overlayNode, {
- edgeType: link, // Attach the link type to the relation div object
+ type: link, // Attach the link type to the relation div object
innerHTML: "<p>" + link + "</p>",
});
- jQuery(relation).click((event) => this.toggleLinkVisibility(event));
+ jQuery(relation).click((event) => this.toggleVisibility(event));
const colorStrip = Helpers.createDiv("rel-container", relation);
colorStrip.style.backgroundColor = this.graph.edgeColors[link];
@@ -52,9 +58,14 @@ class LinkSelectionOverlay {
* Toggles the visibility of certain edge types.
* @param {MouseEvent} event
*/
- toggleLinkVisibility(event) {
+ toggleVisibility(event) {
const target = event.currentTarget;
- this.graph.toggleLinkVisibility(target.edgeType);
+ if (this.type === "link") {
+ this.graph.toggleLinkVisibility(target.type);
+ } else {
+ this.graph.toggleNodeVisibility(target.type);
+ }
+ this.filterChangedCallback(target.type);
if (getComputedStyle(target).opacity == 1.0) {
target.style.opacity = 0.4;
} else {
diff --git a/display/overlays/neighbors.js b/display/overlays/neighbors.js
index d7b253f971ffd0e6c3aa48f2b1acc08f9b710d37..7e641b8d31b4cd06b938ee590d1cca88ea92234f 100644
--- a/display/overlays/neighbors.js
+++ b/display/overlays/neighbors.js
@@ -9,15 +9,17 @@ export { NodeNeighborOverlay };
* that connects them.
*/
class NodeNeighborOverlay {
- constructor(graph, parentNode, infoOverlay) {
+ 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 = {};
}
/**
@@ -38,15 +40,20 @@ class NodeNeighborOverlay {
bottomContainerDiv
);
- for (const [cls, color] of Object.entries(this.graph.edgeColors)) {
+ const colors =
+ this.type === "link"
+ ? this.graph.edgeColors
+ : this.graph.nodeColors;
+ for (const [cls, color] of Object.entries(colors)) {
const navTab = Helpers.createDiv(
"bottom-container-nav-tab",
bottomContainerNavDiv
);
navTab.innerText = cls.slice(0, 3);
navTab.style.backgroundColor = color;
- navTab.edgeType = cls; // Attach the edge type to the DOM object to retrieve it during click events
- jQuery(navTab).click((event) => this.openTab(event));
+ navTab.type = cls; // Attach the edge type to the DOM object to retrieve it during click events
+ jQuery(navTab).click((event) => this.openTabFromEvent(event));
+ this.tabNavHandles[cls] = navTab;
const tabContent = Helpers.createDiv(
"bottom-container-tab-content",
@@ -69,29 +76,58 @@ class NodeNeighborOverlay {
this.activeTabContent.classList.add("active-tab-content");
this.activeTabNav.classList.add("active-tab-nav");
- this.activeTabNav.innerText = this.activeTabNav.edgeType;
+ this.activeTabNav.innerText = this.activeTabNav.type;
}
/**
* Click event handler for the tab headers of the bottom menu.
* @param event
*/
- openTab(event) {
+ openTabFromEvent(event) {
const navTab = event.target;
- const cls = navTab.edgeType;
+ const cls = navTab.type;
+ this.openTab(cls);
+ }
+ openTab(cls) {
this.activeTabNav.classList.remove("active-tab-nav");
this.activeTabNav.innerText = this.activeTabNav.innerText.slice(0, 3);
- navTab.classList.add("active-tab-nav");
- navTab.innerText = cls;
+ this.tabNavHandles[cls].classList.add("active-tab-nav");
+ this.tabNavHandles[cls].innerText = cls;
this.activeTabContent.classList.remove("active-tab-content");
this.tabContentPages[cls].classList.add("active-tab-content");
- this.activeTabNav = navTab;
+ this.activeTabNav = this.tabNavHandles[cls];
this.activeTabContent = this.tabContentPages[cls];
}
+ toggleTabVisibility(cls) {
+ this.tabNavHandles[cls].classList.toggle("bottom-container-nav-tab");
+ this.tabNavHandles[cls].classList.toggle("hidden-tab");
+ this.tabContentPages[cls].classList.toggle(
+ "bottom-container-tab-content"
+ );
+ this.tabContentPages[cls].classList.toggle("hidden-tab");
+
+ // If the tab gets hidden and is the active tab, search for an alternative nav tab to become the new active tab.
+ if (this.tabContentPages[cls].classList.contains("hidden-tab")) {
+ if (this.tabNavHandles[cls].classList.contains("active-tab-nav")) {
+ for (const tab of Object.values(this.tabNavHandles)) {
+ if (!tab.classList.contains("hidden-tab")) {
+ this.openTab(tab.type);
+ break;
+ }
+ }
+ }
+ } else {
+ // If all tabs are hidden, the new tab should become the active tab.
+ if (this.activeTabNav.classList.contains("hidden-tab")) {
+ this.openTab(cls);
+ }
+ }
+ }
+
/**
* Clears the images from all tab content pages.
*/
@@ -134,7 +170,11 @@ class NodeNeighborOverlay {
for (const link of node.links) {
const target = link.source == node ? link.target : link.source;
const reference = this.createReference(target);
- this.tabContentPages[link.type].appendChild(reference);
+ if (this.type === "link") {
+ this.tabContentPages[link.type].appendChild(reference);
+ } else {
+ this.tabContentPages[target.type].appendChild(reference);
+ }
}
}
}
diff --git a/display/overlays/nodeinfo.js b/display/overlays/nodeinfo.js
index 1c97533f8a7dc0b00501c903028df3b276bff40c..e94bba4aeca0096a7906aae460eb4eaadda1bf13 100644
--- a/display/overlays/nodeinfo.js
+++ b/display/overlays/nodeinfo.js
@@ -26,7 +26,12 @@ class NodeInfoOverlay {
create() {
const overlayDiv = this.createOverlayMainDiv();
this.createOverlayElements(overlayDiv);
- this.bottomMenu = new NodeNeighborOverlay(this.graph, overlayDiv, this);
+ this.bottomMenu = new NodeNeighborOverlay(
+ this.graph,
+ overlayDiv,
+ this,
+ "node"
+ );
this.bottomMenu.create();
jQuery("#infoOverlayCloseButton").click(function () {
diff --git a/kg-style.css b/kg-style.css
index 58f0b450ed1cdad72c543cdd46c3be100514c207..6ed2ff89d37aa75b165acc15efa63004795fc34f 100644
--- a/kg-style.css
+++ b/kg-style.css
@@ -169,6 +169,10 @@
align-items: center;
}
+.hidden-tab {
+ display: none;
+}
+
.bottom-container {
position: absolute;
bottom: 0;