uni2work.workflows.visualiser/editor.ts
2023-08-15 04:43:28 +02:00

1180 lines
45 KiB
TypeScript

import * as WF from './workflow.js';
import './forcegraph.js';
import 'https://unpkg.com/force-graph@1.43.0/dist/force-graph.min.js';
//@ts-ignore
import Index from './node_modules/flexsearch/src/index.js'; // 'https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.7.31/dist/flexsearch.bundle.js'
//Theme
var darkMode = false;
export function toggleTheme() {
darkMode = !darkMode;
var menus = [mainMenu, sidePanel, filePanel];
Array.from(document.getElementsByClassName('menuitem')).forEach(item =>
item !== fileMenu &&
Array.from(item.getElementsByClassName('submenu')).forEach(subMenu => menus.push(<HTMLElement>subMenu))
);
Array.from(fileMenu.children).forEach(child => menus.push(<HTMLElement>child));
Array.from((<HTMLElement>document.getElementById('editmenu')).children).forEach(child => menus.push(<HTMLElement>child));
Array.from(contextMenuBg.children).forEach(child => menus.push(<HTMLElement>child));
Array.from(contextMenuEd.children).forEach(child => menus.push(<HTMLElement>child));
Array.from(contextMenuSt.children).forEach(child => menus.push(<HTMLElement>child));
Array.from(document.getElementsByClassName('graph-tooltip')).forEach(tooltip => menus.push(<HTMLElement>tooltip));
var contentHints = [
document.getElementById('filename'),
document.getElementById('sidecontentedge'),
document.getElementById('sidecontentnode')
];
var searchIcon = document.getElementById('search-icon');
if (darkMode) {
menus.forEach(target => {
target?.classList.add('menu-darkmode');
target?.classList.remove('menu-lightmode');
});
contentHints.forEach(hint => {
hint?.classList.add('contenttype-darkmode');
hint?.classList.remove('contenttype-lightmode');
});
searchIcon?.classList.add('search-icon-darkmode');
searchIcon?.classList.remove('search-icon-lightmode');
wfGraph.backgroundColor('black');
} else {
menus.forEach(target => {
target?.classList.add('menu-lightmode');
target?.classList.remove('menu-darkmode');
});
contentHints.forEach(hint => {
hint?.classList.add('contenttype-lightmode');
hint?.classList.remove('contenttype-darkmode');
});
searchIcon?.classList.add('search-icon-lightmode');
searchIcon?.classList.remove('search-icon-darkmode');
wfGraph.backgroundColor('white');
}
}
// Menu bar
const mainMenu = <HTMLElement>document.getElementById('mainmenu');
var selectedMenuItem : HTMLElement | null = null;
Array.from(document.getElementsByClassName('submenu'))
.forEach(subMenu => (<HTMLElement>subMenu).style.top = (mainMenu.offsetHeight + 15).toString());
var lastSubMenu : HTMLElement | null = null;
function positionSubmenuBackdrop() {
if (!lastSubMenu || !submenuBackdrop) return;
var smRect = lastSubMenu.getBoundingClientRect();
submenuBackdrop.style.top = smRect.top.toString();// sideHeading.offsetHeight + parseFloat(smStyle.paddingTop) + parseFloat(shStyle.marginTop) + parseFloat(shStyle.marginBottom);
submenuBackdrop.style.left = smRect.left.toString();
submenuBackdrop.style.width = lastSubMenu.offsetWidth.toString();
submenuBackdrop.style.height = lastSubMenu.offsetHeight.toString();
// var sbStyle = window.getComputedStyle(sideButtons);
// sideContent.style.bottom = sideButtons.offsetHeight + parseFloat(smStyle.paddingBottom) + parseFloat(sbStyle.marginTop) + parseFloat(sbStyle.marginBottom);
// console.log(sideHeading.offsetHeight + shStyle.marginTop + shStyle.marginBottom);
// var width =
}
type FadeDef = {
element: HTMLElement | null,
min?: number,
max?: number,
step?: number
}
/**
*
* @param {HTMLElement} menuitem
*/
function openMenuItem(menuitem: HTMLElement) {
edgeTo = edgeFrom = rightSelection = null;
closeContextMenus(contextMenuEd, contextMenuSt, contextMenuBg);
if (menuitem === selectedMenuItem) {
closeMenuItem();
return;
}
var fadeOuts : FadeDef[] = [];
Array.from(document.getElementsByClassName('selectedmenuitem')).forEach(other => {
other.classList.remove('selectedmenuitem');
Array.from(other.getElementsByClassName('submenu')).forEach(subMenu => fadeOuts.push({element: <HTMLElement>subMenu, min: 0, step: 0.1}));
});
fadeOut(null, ...fadeOuts);
menuitem.classList.add('selectedmenuitem');
var fadeIns : FadeDef[] = [{element: submenuBackdrop, max: 1}];
Array.from(menuitem.getElementsByClassName('submenu')).forEach(subMenu => {
fadeIns.push({element: <HTMLElement>subMenu, max: 1});
lastSubMenu = <HTMLElement>subMenu;
});
fadeIn(positionSubmenuBackdrop, ...fadeIns);
selectedMenuItem = menuitem;
}
function closeContextMenus(...menus: HTMLElement[]) {
var items: FadeDef[] = []
menus.forEach(menu => items.push({element: menu, min: 0, step: 0.1}));
fadeOut(null, ...items);
}
function closeMenuItem() {
if (!selectedMenuItem) return;
selectedMenuItem.classList.remove('selectedmenuitem');
var fadeOuts = [{element: submenuBackdrop, min: 0, step: 0.1}];
Array.from(selectedMenuItem.getElementsByClassName('submenu')).forEach(subMenu => fadeOuts.push({element: <HTMLElement>subMenu, min: 0, step: 0.1}));
fadeOut(() => searchResults.style.display = 'none', ...fadeOuts);
selectedMenuItem = null;
}
export function openFileMenu(menuitem: HTMLElement) {
openMenuItem(menuitem);
}
export function openEditMenu(menuitem: HTMLElement) {
openMenuItem(menuitem);
}
export function openViewMenu(menuitem: HTMLElement) {
openMenuItem(menuitem);
}
export function openSettingsMenu(menuitem: HTMLElement) {
openMenuItem(menuitem);
}
export function openAboutMenu(menuitem: HTMLElement) {
openMenuItem(menuitem);
}
function focusSelection() {
if (!selection) return;
var x = 0;
var y = 0;
if (selection.hasOwnProperty('actionData')) {
selection = <WF.WFEdge>selection
x = selection.source.x + (selection.target.x - selection.source.x) / 2;
y = selection.source.y + (selection.target.y - selection.source.y) / 2;
} else {
selection = <WF.WFNode>selection
x = selection.x;
y = selection.y;
}
wfGraph.centerAt(x, y, 400);
wfGraph.zoom(5, 400);
}
export function openSearchMenu(menuitem: HTMLElement) {
if (selectedMenuItem === menuitem) return;
var val = searchInput.value;
if (val === '' || val === null)
while (searchResultList.firstChild)
searchResultList.removeChild(<ChildNode>searchResultList.lastChild);
openMenuItem(menuitem);
}
(<HTMLElement>document.getElementById('filepanel')).style.opacity = '0';
//Search
var nodeIndex = new Index({tokenize: 'forward'});
var actionIndex = new Index({tokenize: 'forward'});
// const searchDocument = new FlexSearch.Document();
// const searchWorker = new FlexSearch.Worker();
const soStates = <HTMLInputElement>document.getElementById('search-option-states');
const soEdges = <HTMLInputElement>document.getElementById('search-option-edges');
export function search(text: string) {
while (searchResultList.firstChild)
searchResultList.removeChild(<ChildNode>searchResultList.lastChild);
var searchStates = soStates.checked;
var searchActions = soEdges.checked
var stateResults = searchStates ? nodeIndex.search(text, searchActions ? 5 : 10) : null;
var actionResults = searchActions ? actionIndex.search(text, searchStates ? 5 : 10) : null;
function defineFocus(div: HTMLDivElement, target: WF.WFNode | WF.WFEdge) {
div.onclick = (_ => {
searchInput.value = '';
closeMenuItem();
select(target);
focusSelection();
});
}
function format(possibleTargets: (WF.WFEdge | WF.WFNode)[], results: string[], heading: string) {
var h = document.createElement('h3');
h.innerHTML = heading;
searchResultList.appendChild(h);
results.forEach(result => {
var target: WF.WFEdge | WF.WFNode | null = null;
possibleTargets.forEach(stateOrEdge => {
if (stateOrEdge.id === result)
target = stateOrEdge;
});
if (!target) return;
var r = document.createElement('div');
var head = document.createElement('div');
head.innerText = (<WF.WFEdge | WF.WFNode>target).name;
head.classList.add('search-result-head');
r.appendChild(head);
var info = document.createElement('div');
if ((<WF.WFEdge | WF.WFNode>target).hasOwnProperty('actionData'))
info.innerText = (<WF.WFEdge>target).source.name + ' → ' + (<WF.WFEdge>target).target.name;
else
info.innerText = (<WF.WFNode>target).stateData.abbreviation;
info.setAttribute('title', info.innerText);
info.classList.add('search-result-info');
r.appendChild(info);
searchResultList.appendChild(r);
defineFocus(r, target);
})
}
searchResultList.style.maxHeight = (parseFloat(searchResults.style.maxHeight) - searchOptions.offsetHeight).toString();
// console.log('maxh', searchResults.style.maxHeight - searchOptions.offsetHeight)
stateResults && format(workflow.states, stateResults, 'States');
actionResults && format(workflow.actions, actionResults, 'Edges');
positionSubmenuBackdrop();
}
export function showSearchResults() {
searchResults.style.display = 'block';
}
export function openFileDisplay() {
deselect();
function callback() {
fileHeading.innerHTML = 'Open Workflow Definition';
var pStyle = window.getComputedStyle(filePanel);
var hStyle = window.getComputedStyle(fileHeading);
fileContent.style.top = (fileHeading.offsetHeight + parseFloat(pStyle.paddingTop) + parseFloat(hStyle.marginTop) + parseFloat(hStyle.marginBottom)).toString();
var bStyle = window.getComputedStyle(fileButtons);
fileContent.style.bottom = (fileButtons.offsetHeight + parseFloat(pStyle.paddingBottom) + parseFloat(bStyle.marginTop) + parseFloat(bStyle.marginBottom)).toString();
}
fadeIn(callback, {element: filePanel, max: 1, step: 0.025}, {element: curtain, max: 0.5, step: 0.025});
closeMenuItem();
}
export function closeFileDisplay() {
var panel = document.getElementById('filepanel');
fadeOut(null, {element: panel, min: 0, step: 0.025}, {element: curtain, min: 0, step: 0.025});
}
function fadeIn(callback: Function | null, ...items: FadeDef[]) {
requestAnimationFrame(() => {
items.forEach(i => i.element && (i.element.style.display = 'block'));
if (callback) callback();
});
function fade() {
var proceed = false;
items.forEach(i => {
if (!i.element || i.max === undefined) return;
var newOpacity = (parseFloat(i.element.style.opacity) || 0) + (i.step || 0.05);
if (newOpacity <= i.max) {
i.element.style.opacity = newOpacity.toString();
// console.log(i.max, i.element.style.opacity)
proceed = true;
} else if ((parseFloat(i.element.style.opacity) || 0) > i.max) i.element.style.opacity = i.max.toString();
});
if (proceed) requestAnimationFrame(fade);
}
requestAnimationFrame(fade);
}
function fadeOut(callback: Function | null, ...items: FadeDef[]) {
function fade() {
var proceed = false;
items.forEach(i => {
if (! i.element || i.min === undefined) return;
var newOpacity = (parseFloat(i.element.style.opacity) || 0) - (i.step || 0.05);
if (newOpacity >= i.min) {
i.element.style.opacity = newOpacity.toString();
// console.log(i.max, i.element.style.opacity)
proceed = true;
} else {
if ((parseFloat(i.element.style.opacity) || 0) < i.min) i.element.style.opacity = i.min.toString();
i.element.style.display = 'none';
}
});
if (proceed) requestAnimationFrame(fade);
else if (callback) requestAnimationFrame(<FrameRequestCallback>callback);
}
requestAnimationFrame(fade);
}
type WFResource = {
name: string,
url: string,
description: string
}
// Available workflow definition files
var workflowFiles : WFResource[] = [];
// Workflow data
var workflow : WF.Workflow = new WF.Workflow({
states : [],
actions : []
});
//@ts-ignore
const wfGraph = ForceGraph();
function defineOnClick(item: HTMLElement, url: string, title: string) {
item.onclick = (_ => {
fetch(url)
.then(response => response.json())
.then(data => {
closeFileDisplay();
searchInput.value = '';
while (searchResultList.firstChild)
searchResultList.removeChild(<ChildNode>searchResultList.lastChild);
workflow = new WF.Workflow({
states : data.states,
actions : data.actions
});
nodeIndex = new Index({tokenize: 'forward'});
actionIndex = new Index({tokenize: 'forward'});
prepareWorkflow();
updateGraph();
wfGraph.centerAt(0, 0, 400);
wfGraph.zoom(1, 400);
(<HTMLElement>document.getElementById('filename')).innerText = title;
document.title = title + ' | Editor';
});
});
}
fetch('http://localhost:8080/spaß/index.json')
.then(response => response.json())
.then(data => {
workflowFiles = data;
for (var i = 0; i < workflowFiles.length; i++) {
var item = document.createElement('div');
item.innerHTML = '<h3>' + workflowFiles[i].name + '</h3>' + workflowFiles[i].description;
var url = 'http://localhost:8080/spaß' + workflowFiles[i].url;
defineOnClick(item, url, workflowFiles[i].name);
fileContent.appendChild(item);
}
var url = 'http://localhost:8080/spaß' + workflowFiles[0].url;
return fetch(url);
})
.then((response) => response.json())
.then((data) => {
(<HTMLElement>document.getElementById('filename')).innerText = workflowFiles[0].name;
document.title = workflowFiles[0].name + ' | Editor';
workflow = new WF.Workflow({
states : data.states,
actions : data.actions
});
wfGraph(document.getElementById('graph')).graphData({nodes: workflow.states, links: workflow.actions});
Array.from(document.getElementsByClassName('graph-tooltip')).forEach(tooltip =>
tooltip.classList.add('menu-lightmode')
);
runnn();
});
//Actors of the workflow
var actors: WF.Role[] = [];
const selectedActor = <HTMLSelectElement>document.getElementById('actor');
//Viewers of the workflow
var viewers: (WF.Role | string)[] = [];
const selectedViewer = <HTMLSelectElement>document.getElementById('viewer');
//Actions/States with no explicit viewers
var viewableByAll: (WF.ActionData | WF.StateData)[] = [];
//Possible initiators
var initiators: string[] = [];
//Implicit state from which initial actions can be selected
var initState : WF.WFNode | null = null;
const NO_ACTOR = 'None';
const NO_VIEWER = NO_ACTOR;
//source & target nodes of all currently highlighted actions
var highlightedSources : string[] = [];
var highlightedTargets : string[] = [];
export function selectActor() {
closeContextMenus(contextMenuEd, contextMenuSt, contextMenuBg);
edgeFrom = edgeTo = rightSelection = null;
highlightedSources = [];
highlightedTargets = [];
selectedViewer.value = NO_VIEWER;
workflow.actions.forEach(act => {
if (act.actionData.mode != 'automatic' && act.actionData.actorNames.includes(selectedActor.value)) {
highlightedSources.push(act.source.id);
highlightedTargets.push(act.target.id);
}
});
}
export function selectViewer() {
closeContextMenus(contextMenuEd, contextMenuSt, contextMenuBg);
edgeFrom = edgeTo = rightSelection = null;
highlightedSources = [];
highlightedTargets = [];
selectedActor.value = NO_ACTOR;
workflow.states.forEach(st => {
if (st.stateData.viewerNames.includes(selectedViewer.value)) {
highlightedSources.push(st.id);
}
});
}
var selection : WF.WFNode | WF.WFEdge | null = null; // The currently selected node/edge.
var rightSelection : WF.WFNode | WF.WFEdge | null = null; // The currently right clicked node/edge.
var edgeTo : WF.WFNode | null = null; // Target of an edge to be created.
var edgeFrom : WF.WFNode | null = null; // Start on an edge to be created.
//Utility elements
const curtain = <HTMLElement>document.getElementById('curtain');
const submenuBackdrop = <HTMLElement>document.getElementById('submenu-backdrop');
//Side Panel
const sidePanel = <HTMLElement>document.getElementById('sidepanel');
const sideContent = <HTMLElement>document.getElementById('sidecontent');
const sideHeading = <HTMLElement>document.getElementById('sideheading');
const sideButtons = <HTMLElement>document.getElementById('sidebuttons');
const sideInfoEdge = <HTMLElement>document.getElementById('sidecontentedge');
const sideInfoNode = <HTMLElement>document.getElementById('sidecontentnode');
//File panel
const fileMenuBtn = <HTMLElement>document.getElementById('file-menu-btn');
const fileMenu = <HTMLElement>document.getElementById('filemenu');
const filePanel = <HTMLElement>document.getElementById('filepanel');
const fileHeading = <HTMLElement>document.getElementById('fileheading');
const fileContent = <HTMLElement>document.getElementById('filecontent');
const fileButtons = <HTMLElement>document.getElementById('filebuttons');
//Edit
const editMenuBtn = <HTMLElement>document.getElementById('edit-menu-btn');
//View
const viewMenuBtn = <HTMLElement>document.getElementById('view-menu-btn');
//Settings
const settingsMenuBtn = <HTMLElement>document.getElementById('settings-menu-btn');
//About
const aboutMenuBtn = <HTMLElement>document.getElementById('about-menu-btn');
//Context menus
const contextMenuBg = <HTMLElement>document.getElementById('ctmenubg'); //Click on background
const contextMenuSt = <HTMLElement>document.getElementById('ctmenust'); //Click on state
const contextMenuEd = <HTMLElement>document.getElementById('ctmenued'); //Click on edge
//Search
const searchMenuBtn = <HTMLElement>document.getElementById('search-menu-btn');
const searchContainer = <HTMLElement>document.getElementById('search-container');
const searchInput = <HTMLSelectElement>document.getElementById('search-input');
const searchResults = <HTMLElement>document.getElementById('search-results');
const searchResultList = <HTMLElement>document.getElementById('search-result-list');
const searchOptions = <HTMLElement>document.getElementById('search-options')
// Counters for placeholder IDs of states/actions added via GUI
var stateIdCounter = 0;
var actionIdCounter = 0;
var stateAbbreviations: string[] = [];
var newStateCoords = {'x': 0, 'y': 0}; //Initial coordinates of the next new state
sidePanel.style.top = (mainMenu.offsetHeight + 15).toString();
searchContainer.style.left = (mainMenu.offsetWidth / 2 - searchContainer.offsetWidth / 2).toString();
searchResults.style.left = searchContainer.style.left;
searchResults.style.maxHeight = (0.8 * window.innerHeight).toString();
//Event handlers
curtain.addEventListener('click', _ => closeFileDisplay());
fileMenuBtn.addEventListener('click', function(_) { openFileMenu(this) });
editMenuBtn.addEventListener('click', function(_) { openEditMenu(this) });
viewMenuBtn.addEventListener('click', function(_) { openViewMenu(this) });
settingsMenuBtn.addEventListener('click', function(_) { openSettingsMenu(this) });
aboutMenuBtn.addEventListener('click', function(_) { openAboutMenu(this) });
searchMenuBtn.addEventListener('click', function(_) { openSearchMenu(this) });
searchInput.addEventListener('click', function(_) { showSearchResults() });
searchInput.addEventListener('input', function(_) { search(this.value) });
document.getElementById('search-button')?.addEventListener('click', _ => searchInput.focus());
document.getElementById('open-file')?.addEventListener('click', _ => openFileDisplay());
document.getElementById('actor')?.addEventListener('change', _ => selectActor());
document.getElementById('viewer')?.addEventListener('change', _ => selectViewer());
document.getElementById('theme-toggle')?.addEventListener('click', _ => toggleTheme());
document.getElementById('side-panel-cancel')?.addEventListener('click', _ => deselect());
document.getElementById('side-panel-focus')?.addEventListener('click', _ => focusSelection());
document.getElementById('side-panel-delete')?.addEventListener('click', _ => removeSelection());
document.getElementById('file-panel-cancel')?.addEventListener('click', _ => closeFileDisplay());
document.getElementById('add-state')?.addEventListener('click', _ => addState());
document.getElementById('edge-from')?.addEventListener('click', _ => markEdgeFrom());
document.getElementById('edge-to')?.addEventListener('click', _ => markEdgeTo());
document.getElementById('close-side-panel')?.addEventListener('click', _ => deselect());
document.getElementById('close-file-panel')?.addEventListener('click', _ => closeFileDisplay());
document.querySelectorAll('.edit-item').forEach(elem => elem.addEventListener('click', _ => rightSelect()));
document.querySelectorAll('.delete-item').forEach(elem => elem.addEventListener('click', _ => removeRightSelection()));
/**
* Marks the given item as selected.
* @param {*} item The node or edge to select.
*/
export function select(item: WF.WFEdge | WF.WFNode) {
closeContextMenus(contextMenuEd, contextMenuSt, contextMenuBg);
edgeFrom = edgeTo = rightSelection = null;
selection = selection === item ? null : item;
if (selection === item) {
while (sideContent.firstChild)
sideContent.removeChild(<ChildNode>sideContent.lastChild);
function callback() {
if (item.hasOwnProperty('actionData')) {
sideInfoEdge.style.display = 'block';
sideInfoNode.style.display = 'none';
} else {
sideInfoEdge.style.display = 'none';
sideInfoNode.style.display = 'block';
}
var heading = item.name;
if (heading.length > 90) heading = heading.substring(0, 88) + '...';
sideHeading.innerHTML = heading;
sideHeading.setAttribute('title', item.name);
var data = document.createElement('div');
var content = generatePanelContent(<WF.WFNode | WF.WFEdge>selection);
content.forEach(c => data.appendChild(c));
sideContent.appendChild(data);
var spStyle = window.getComputedStyle(sidePanel);
var shStyle = window.getComputedStyle(sideHeading);
sideContent.style.top = (sideHeading.offsetHeight + parseFloat(spStyle.paddingTop) + parseFloat(shStyle.marginTop) + parseFloat(shStyle.marginBottom)).toString();
var sbStyle = window.getComputedStyle(sideButtons);
sideContent.style.bottom = (sideButtons.offsetHeight + parseFloat(spStyle.paddingBottom) + parseFloat(sbStyle.marginTop) + parseFloat(sbStyle.marginBottom)).toString();
// console.log(sideHeading.offsetHeight + shStyle.marginTop + shStyle.marginBottom);
}
fadeIn(callback, {element: sidePanel, max: 1});
} else {
fadeOut(null, {element: sidePanel, min: 0});
// sidePanel.style.display = 'none';
}
console.log(item);
}
export function deselect() {
fadeOut(null, {element: sidePanel, min: 0});
// sidePanel.style.display = 'none';
selection = null;
}
export function rightSelect() {
if (!rightSelection) return;
select(rightSelection);
}
/**
* Adds a new state to the workflow and auto-selects it.
*/
export function addState() {
var nodeId = stateIdCounter ++;
var x = newStateCoords.x;
var y = newStateCoords.y;
var state : WF.WFNode = { id: 'state_' + nodeId,
x: x,
y: y,
name: 'state_' + nodeId,
fx: x,
fy: y,
val: 5,
stateData: new WF.StateData({ abbreviation: `S${nodeId}`, final: 'false' }) };
workflow.states.push(state);
updateGraph();
select(state);
nodeIndex.add(state.id, state.name);
}
/**
* Adds a new action between two states.
* @param source The source state.
* @param target The target state.
*/
function connect(source: WF.WFNode, target: WF.WFNode) {
let linkId = actionIdCounter ++;
var action : WF.WFEdge = new WF.WFEdge({
id: (linkId).toString(),
source: source,
target: target,
name: 'action_' + linkId,
actionData: {},
nodePairId: ''
});
workflow.actions.push(action);
updateGraph();
select(action);
actionIndex.add(action.id, action.name);
}
export function markEdgeTo() {
edgeTo = <WF.WFNode>rightSelection;
closeContextMenus(contextMenuSt);
// contextMenuSt.style.display = 'none';
}
export function markEdgeFrom() {
edgeFrom = <WF.WFNode>rightSelection;
closeContextMenus(contextMenuSt);
// contextMenuSt.style.display = 'none';
}
export function removeSelection() {
if (selection) {
if (selection.hasOwnProperty('actionData')) removeAction(<WF.WFEdge>selection);
else removeState(<WF.WFNode>selection);
deselect();
edgeFrom = edgeTo = rightSelection = null;
closeContextMenus(contextMenuEd, contextMenuSt, contextMenuBg);
}
}
export function removeRightSelection() {
if (rightSelection) {
if (rightSelection.hasOwnProperty('actionData')) removeAction(<WF.WFEdge>rightSelection);
else removeState(<WF.WFNode>rightSelection);
if (selection === rightSelection) deselect();
edgeFrom = edgeTo = rightSelection = null;
closeContextMenus(contextMenuEd, contextMenuSt, contextMenuBg);
}
}
function generatePanelContent(selection: WF.WFNode | WF.WFEdge) {
var children : HTMLElement[] = [];
var data = selection.hasOwnProperty('stateData') ? (<WF.WFNode>selection).stateData : (<WF.WFEdge>selection).actionData
for (var key in data) {
if (key === 'viewerNames' || key === 'actorNames') continue;
var h = document.createElement('h2');
var heading = document.createTextNode(key.substring(0,1).toUpperCase() + key.substring(1));
h.appendChild(heading);
children.push(h);
var content = data[key as keyof (WF.StateData | WF.ActionData)];
if (content instanceof Array && content.length > 0 && content[0] instanceof WF.Message) {
content.forEach(msg => {
if (msg instanceof WF.Message)
msg.format().forEach(child => children.push(child));
else {
var m = document.createElement('p');
m.innerHTML = msg;
children.push(m);
}
});
} else if (content instanceof WF.Payload) {
content.format().forEach(child => children.push(child));
} else if (content instanceof WF.Roles) {
content.format().forEach(child => children.push(child));
} else {
var p = document.createElement('p');
var text = document.createTextNode((key == 'comment')
? (<any[]>data[key as keyof (WF.StateData |WF.ActionData)]).join(' ')
: JSON.stringify(<any[]>data[key as keyof (WF.StateData |WF.ActionData)]));
p.appendChild(text);
children.push(p);
}
}
return children;
}
/**
* Removes an edge from the workflow.
* @param action The action to remove.
*/
function removeAction(action: WF.WFEdge) {
workflow.actions.splice(workflow.actions.indexOf(action), 1);
actionIndex.remove(action.id);
}
/**
* Removes a state from the workflow.
* @param {*} state The state to remove.
*/
function removeState(state: WF.WFNode) {
workflow.actions
.filter(edge => edge.source === state || edge.target === state)
.forEach(edge => removeAction(edge));
workflow.states.splice(workflow.states.indexOf(state), 1);
var abbreviation = state.stateData && state.stateData.abbreviation;
abbreviation && stateAbbreviations.splice(stateAbbreviations.indexOf(abbreviation), 1);
nodeIndex.remove(state.id);
}
var selfLoops: Map<string, WF.WFEdge[]> = new Map(); // All edges whose targets equal their sources.
var overlappingEdges: Map<string, WF.WFEdge[]> = new Map(); // All edges whose target and source are connected by further.
const selfLoopCurvMin = 0.5; // Minimum curvature of a self loop.
const curvatureMinMax = 0.2; // Minimum/maximum curvature (1 +/- x) of overlapping edges.
/**
* Updates the nodes and edges of the workflow graph.
*/
function updateGraph() {
identifyOverlappingEdges()
computeCurvatures()
wfGraph.graphData({nodes: workflow.states, links: workflow.actions});
}
/**
* Identifies and stores self loops as well as overlapping edges (i.e. multiple edges sharing the
* same source and target).
*/
function identifyOverlappingEdges() {
selfLoops = new Map();
overlappingEdges = new Map();
workflow.actions.forEach(edge => {
var source = typeof(edge.source) === 'string' ? edge.source : edge.source.id;
var target = typeof(edge.target) === 'string' ? edge.target : edge.target.id;
var pre = source <= target ? source : target;
var post = source <= target ? target : source;
edge.nodePairId = pre + '_' + post;
var category = edge.source === edge.target ? selfLoops : overlappingEdges;
if (!category.has(edge.nodePairId)) category.set(edge.nodePairId, []);
(<WF.WFEdge[]>category.get(edge.nodePairId)).push(edge);
});
}
/**
* Computes the curvature of the loops stored in `selfLoops` and overlapping edges
* stored in `overlappingEdges`.
*/
function computeCurvatures() {
// Self loops
Array.from(selfLoops.keys()).forEach(id => {
var edges = selfLoops.get(id);
if (!edges) {
console.error('Undefined nodePairId: ' + id);
return;
}
for (let i = 0; i < edges.length; i++)
edges[i].curvature = selfLoopCurvMin + i / 10;
});
// Overlapping edges
Array.from(overlappingEdges.keys())
.filter(nodePairId => (<WF.WFEdge[]>overlappingEdges.get(nodePairId)).length > 1)
.forEach(nodePairId => {
var edges = <WF.WFEdge[]>overlappingEdges.get(nodePairId);
var lastIndex = edges.length - 1;
var lastEdge = edges[lastIndex];
lastEdge.curvature = curvatureMinMax;
let delta = 2 * curvatureMinMax / lastIndex;
for (let i = 0; i < lastIndex; i++) {
edges[i].curvature = - curvatureMinMax + i * delta;
if (lastEdge.source !== edges[i].source) edges[i].curvature *= -1;
}
});
}
function prepareWorkflow() {
actors = [];
viewers = [];
viewableByAll = []
initiators = []
highlightedSources = [];
highlightedTargets = [];
stateAbbreviations = [];
stateIdCounter = workflow.states ? workflow.states.length : 0;
actionIdCounter = workflow.states ? workflow.actions.length : 0;
Array.from(selectedActor.options).forEach(option => selectedActor.remove(parseFloat(option.value)));
Array.from(selectedViewer.options).forEach(option => selectedViewer.remove(parseFloat(option.value)));
selectedActor.value = NO_ACTOR;
selectedViewer.value = NO_VIEWER;
//Create search index
workflow.states.forEach(state =>
nodeIndex.add(state.id, state.name)
);
workflow.actions.forEach(action =>
actionIndex.add(action.id, action.name)
);
workflow.actions.forEach(act => act.actionData.actors.roles.forEach(a => {
var includes = false;
actors.forEach(actor => includes = includes || equalRoles(a, actor));
(!includes) && actors.push(a);
act.actionData.actorNames.push(getRoleName(a));
}));
//Prepare actor highlighting
var allActors = document.createElement('option');
allActors.text = NO_ACTOR;
selectedActor.add(allActors);
actors.forEach(actor => {
var option = document.createElement('option');
option.text = getRoleName(actor);
selectedActor.add(option);
});
//Identify all viewers of every action
workflow.actions.forEach(act => {
if (act.actionData.viewers.roles.length === 0) {
viewableByAll.push(act.actionData);
} else {
act.actionData.viewers.roles.forEach(v => {
var includes = false;
viewers.forEach(viewer => includes = includes || equalRoles(v, <WF.Role>viewer));
(!includes) && viewers.push(v);
act.actionData.viewerNames.push(getRoleName(v));
})
}
if (act.actionData.mode === 'initial') {
act.actionData.actorNames.forEach(an => !initiators.includes(an) && initiators.push(an));
}
});
//Identify all viewers of every state
workflow.states.forEach(st => {
if (st.name === '@@INIT') {
initState = st;
} else if (st.stateData.viewers.length() === 0) {
viewableByAll.push(st.stateData);
} else {
st.stateData.viewers.roles.forEach(v => {
var includes = false;
viewers.forEach(viewer => includes = includes || equalRoles(v, <WF.Role>viewer));
(!includes) && viewers.push(v);
st.stateData.viewerNames.push(getRoleName(v));
})
}
});
if (initState)
initState.stateData.viewerNames = initiators;
else
console.error('Failed to determine initial state');
const ALL_VIEW = "Not explicitly specified";
if (viewableByAll.length > 0) {
viewers.push(ALL_VIEW);
var viewerNames : string[] = []
viewers.forEach(viewer => viewerNames.push(getRoleName(viewer)));
viewableByAll.forEach(data => {
data.viewerNames = viewerNames;
});
}
//Prepare viewer highlighting
var allViewers = document.createElement('option');
allViewers.text = NO_VIEWER;
selectedViewer.add(allViewers);
viewers.forEach(viewer => {
var option = document.createElement('option');
option.text = getRoleName(viewer);
selectedViewer.add(option);
});
//Compute abbreviations of the names of all states
workflow.states.forEach(state => {
// var label = node.name.substring(0, 5);
var label = state.name.split(' '); // [node.name.substring(0, 6), node.name.substring(6, 12), node.name.substring(12, 18)];
for (var i = 0; i < label.length; i++) {
if (label[i] === '(') continue; // if the state name contains whitespace after the brace
var isBrace = label[i][0] === '(';
label[i] = label[i].substring(isBrace ? 1 : 0, isBrace ? 2 : 1);
}
var labelString = label.join('').substring(0,6);
var counter = 1;
var len = labelString.length;
while (stateAbbreviations.includes(labelString)) {
labelString = labelString.substring(0,len) + "'" + counter++;
}
stateAbbreviations.push(labelString);
state.stateData.abbreviation = labelString;
});
}
function getRoleName(role: WF.Role | string) {
if (typeof role == 'string') {
return role;
} else if (role instanceof WF.Role) {
return role.name;
} else {
return JSON.stringify(role);
}
}
/**
* Checks if two roles are equal.
* @param role1
* @param role2
* @returns
*/
function equalRoles(role1: WF.Role | WF.RoleFormat, role2: WF.Role | WF.RoleFormat) {
role1 instanceof WF.Role && (role1 = role1.json);
role2 instanceof WF.Role && (role2 = role2.json);
var equal = role1.tag === role2.tag;
if (role1.tag == 'payload-reference') {
equal = equal && (role1['payload-label' as keyof WF.RoleFormat] === role2['payload-label' as keyof WF.RoleFormat]);
} else if (role1.tag == 'user') {
equal = equal && (role1.user === role2.user);
} else if (role1.tag == 'authorized') {
if (!role1.authorized || (role2.tag == 'authorized' && !role2.authorized)) {
console.error("Missing attribute 'authorized' for one of:", role1, role2);
equal = equal && (role1.authorized == role2.authorized)
} else if (!role2.authorized)
equal = false;
else
equal = equal && ((<any[]><unknown>role1.authorized['dnf-terms' as keyof JSON])[0][0].var === (<any[]><unknown>role2.authorized['dnf-terms' as keyof JSON])[0][0].var);
}
return equal;
}
function openContextMenu(x: number, y: number, menu: HTMLElement) {
menu.style.top = (y - 25).toString();
menu.style.left = (x + 20).toString();
fadeIn(null, {element: menu, max: 1, step: 0.1})
// menu.style.display = 'block';
edgeFrom = edgeTo = null;
}
function runnn() {
prepareWorkflow();
const edgeColourDefault = '#999999ff';
const edgeColourSelected = '#000000ff';
const edgeColourSelectedDarkMode = '#ffffffff';
const edgeColourHighlightDefault = '#6ed4d4';
const edgeColourHighlightSelected = 'magenta';
const edgeColourSubtleDefault = '#99999955';
const edgeColourSubtleSelected = '#00000055';
const edgeColourSubtleSelectedDarkMode = '#ffffff55';
const edgeColourMostSubtle = '#99999944';
/**
*
* @param node
* @returns The colour the given node should have.
*/
function getNodeColour(node: WF.WFNode) {
var standard = (selectedActor.value === NO_ACTOR && selectedViewer.value === NO_VIEWER)
|| highlightedSources.includes(node.id) || highlightedTargets.includes(node.id)
var alpha = standard ? 'ff' : '55';
var isSelected = selection === node || rightSelection === node;
if (node.stateData && node.stateData.final !== 'false' && node.stateData.final !== '') {
if (node.stateData.final === 'true' || node.stateData.final === 'ok') {
return (isSelected ? '#3ac713' : '#31a810') + alpha;
} else if (node.stateData.final === 'not-ok') {
return (isSelected ? '#ec4e7b' : '#e7215a') + alpha;
} else {
return (isSelected ? '#ffbc15' : '#eeaa00') + alpha;
}
} else if (node.name === '@@INIT') {
return (isSelected ? '#ffbc15' : '#eeaa00') + alpha;
} else {
return (isSelected ? '#538cd9' : '#3679d2') + alpha;
}
}
function isHighlightedActorEdge(edge: WF.WFEdge) {
var data = edge.actionData;
var isActor = data.mode != 'automatic' && data.actorNames.includes(selectedActor.value);
var isActorAuto = data.mode == 'automatic' && highlightedTargets.includes(edge.source.id);
return isActor || isActorAuto;
}
function isHighlightedViewerEdge(edge: WF.WFEdge) {
var data = edge.actionData;
return data.viewerNames.includes(selectedViewer.value);
}
function getEdgeColour(edge: WF.WFEdge) {
var isSelected = selection === edge || rightSelection === edge;
if (isHighlightedActorEdge(edge)) {
return isSelected ? edgeColourHighlightSelected : edgeColourHighlightDefault;
} else if (selectedViewer.value !== NO_VIEWER && !isHighlightedViewerEdge(edge)) {
return isSelected ? edgeColourSubtleDefault : edgeColourMostSubtle;
} else if (selectedActor.value !== NO_ACTOR) {
return isSelected ? (darkMode ? edgeColourSubtleSelectedDarkMode : edgeColourSubtleSelected)
: edgeColourSubtleDefault;
} else {
return isSelected ? (darkMode ? edgeColourSelectedDarkMode : edgeColourSelected)
: edgeColourDefault;
}
}
wfGraph
.linkDirectionalArrowLength(4)
.linkDirectionalArrowRelPos(1)
.linkColor(getEdgeColour)
.linkCurvature('curvature')
.linkCanvasObjectMode(() => 'after')
.linkCanvasObject((edge: WF.WFEdge, context: CanvasRenderingContext2D) => {
const MAX_FONT_SIZE = 4;
const LABEL_NODE_MARGIN = wfGraph.nodeRelSize() * edge.source.val * 1.5;
const source = edge.source;
const target = edge.target;
const curvature = edge.curvature;
var textPos = (source === target)
? {x: source.x, y: source.y}
: { x: source.x + (target.x - source.x) / 2,
y: source.y + (target.y - source.y) / 2 };
const edgeVector = {x: target.x - source.x, y: target.y - source.y};
if (source !== target) {
var evLength = Math.sqrt(Math.pow(edgeVector.x, 2) + Math.pow(edgeVector.y, 2));
var perpendicular = {x: edgeVector.x, y: (-Math.pow(edgeVector.x, 2) / edgeVector.y)};
var pLength = Math.sqrt(Math.pow(perpendicular.x, 2) + Math.pow(perpendicular.y, 2));
perpendicular.x = perpendicular.x / pLength;
perpendicular.y = perpendicular.y / pLength;
var fromSource = {x: source.x + perpendicular.x, y: source.y + perpendicular.y};
// If source would cycle around target in clockwise direction, would fromSource point into this direction?
// If not, the perpendicular vector must be flipped in order to ensure that the label is displayed on the
// intended curved edge.
var isClockwise = (source.x < target.x && fromSource.y > source.y) ||
(source.x > target.x && fromSource.y < source.y) ||
(source.x === target.x && ((source.y < target.y && fromSource.x < source.x) ||
source.y > target.y && fromSource.x > source.x));
var offset = 0.5 * evLength * (isClockwise ? -curvature : curvature);
textPos = {x: textPos.x + perpendicular.x * offset, y: textPos.y + perpendicular.y * offset};
} else if (edge.__controlPoints) { // Position label relative to the Bezier control points of the self loop
edgeVector.x = edge.__controlPoints[2] - edge.__controlPoints[0];
edgeVector.y = edge.__controlPoints[3] - edge.__controlPoints[1];
var ctrlCenter = {x: edge.__controlPoints[0] + (edge.__controlPoints[2] - edge.__controlPoints[0]) / 2,
y: edge.__controlPoints[1] + (edge.__controlPoints[3] - edge.__controlPoints[1]) / 2};
var fromSource = {x: ctrlCenter.x - source.x, y: ctrlCenter.y - source.y};
var fromSrcLen = Math.sqrt(Math.pow(fromSource.x, 2) + Math.pow(fromSource.y, 2));
fromSource.x /= fromSrcLen;
fromSource.y /= fromSrcLen;
// The distance of the control point is 70 * curvature. Slightly more than half of it is appropriate here:
textPos = {x: source.x + fromSource.x * 37 * curvature, y: source.y + fromSource.y * 37 * curvature};
}
const maxTextLength = (source !== target) ? Math.sqrt(Math.pow(edgeVector.x, 2) + Math.pow(edgeVector.y, 2)) - LABEL_NODE_MARGIN
: 1.5 * Math.sqrt(4 * source.val + 100 * curvature);
var textAngle = Math.atan2(edgeVector.y, edgeVector.x);
// maintain label vertical orientation for legibility
if (textAngle > Math.PI / 2) textAngle = -(Math.PI - textAngle);
if (textAngle < -Math.PI / 2) textAngle = -(-Math.PI - textAngle);
var label = edge.name;
// estimate fontSize to fit in link length
//context.font = '1px Sans-Serif';
const fontSize = MAX_FONT_SIZE;// Math.min(MAX_FONT_SIZE, maxTextLength / context.measureText(label).width);
context.font = `${fontSize}px Inter`;
var textLen = context.measureText(label).width;
if (textLen > maxTextLength) {
var allowedLen = maxTextLength * (label.length / textLen);
label = label.substring(0, allowedLen);
if (label !== edge.name) label += '...';
textLen = context.measureText(label).width;
}
const bckgDimensions = [textLen, fontSize] as const;
// draw text label (with background rect)
context.save();
context.translate(textPos.x, textPos.y);
context.rotate(textAngle);
context.fillStyle = darkMode ? 'rgba(0, 0, 0, 0.8)' : 'rgba(255, 255, 255, 0.8)';
context.fillRect(- bckgDimensions[0] / 2, - bckgDimensions[1] / 2, ...bckgDimensions);
context.textAlign = 'center';
context.textBaseline = 'middle';
context.fillStyle = getEdgeColour(edge);
context.fillText(label, 0, 0);
context.restore();
})
.linkLineDash((edge: WF.WFEdge) => edge.actionData.mode == 'automatic' && [2, 3]) //[dash, gap]
.linkWidth((edge: WF.WFEdge) => ((edge === selection || edge === rightSelection) ? 2 : 0) + ((isHighlightedActorEdge(edge) || isHighlightedViewerEdge(edge)) ? 4 : 1))
.linkDirectionalParticles(2)
.linkDirectionalParticleColor(() => darkMode ? '#ffffff55' : '#00000055')
.linkDirectionalParticleWidth((edge: WF.WFEdge) => (isHighlightedActorEdge(edge)) ? 3 : 0)
.nodeCanvasObject((node: WF.WFNode, ctx: CanvasRenderingContext2D) => {
ctx.fillStyle = getNodeColour(node);
ctx.beginPath();
ctx.arc(node.x, node.y, 2*node.val, 0, 2 * Math.PI, false);
ctx.fill();
if (node === selection || node === rightSelection) {
ctx.strokeStyle = darkMode ? 'white' : 'black';
ctx.lineWidth = 1;
ctx.setLineDash([1, 2]);
ctx.lineCap = 'round';
ctx.stroke();
}
if (! (node.stateData && node.stateData.abbreviation)) return;
ctx.fillStyle = 'white';
ctx.font = '4px Inter';
ctx.textAlign = 'center';
ctx.textBaseline = 'middle';
ctx.fillText(node.stateData.abbreviation, node.x, node.y);
})
.onNodeDragEnd((node: WF.WFNode) => {
node.fx = node.x;
node.fy = node.y;
})
.onNodeClick((node: WF.WFNode, _: Event) => {
if (edgeFrom) {
connect(edgeFrom, node);
edgeFrom = null;
} else if (edgeTo) {
connect(node, edgeTo);
edgeTo = null;
} else select(node);
closeMenuItem();
})
.onNodeRightClick((node: WF.WFNode, event: { layerX: number, layerY: number }) => {
openContextMenu(event.layerX, event.layerY, contextMenuSt);
closeContextMenus(contextMenuBg, contextMenuEd);
// contextMenuBg.style.display = contextMenuEd.style.display = 'none';
rightSelection = node;
closeMenuItem();
})
.onLinkClick((edge: WF.WFEdge, _: Event) => {
select(edge);
closeMenuItem();
})
.onLinkRightClick((edge: WF.WFEdge, event: { layerX: number, layerY: number }) => {
openContextMenu(event.layerX, event.layerY, contextMenuEd);
closeContextMenus(contextMenuBg, contextMenuSt);
// contextMenuBg.style.display = contextMenuSt.style.display = 'none';
rightSelection = edge;
closeMenuItem()
})
.onBackgroundClick((_: Event) => {
closeContextMenus(contextMenuEd, contextMenuSt, contextMenuBg);
deselect();
edgeFrom = edgeTo = rightSelection = null;
closeMenuItem();
})
.onBackgroundRightClick((event: { layerX: number, layerY: number }) => {
newStateCoords = wfGraph.screen2GraphCoords(event.layerX, event.layerY);
openContextMenu(event.layerX, event.layerY, contextMenuBg);
closeContextMenus(contextMenuEd, contextMenuSt);
// contextMenuEd.style.display = contextMenuSt.style.display = 'none';
edgeFrom = edgeTo = rightSelection = null;
closeMenuItem();
})
.autoPauseRedraw(false);
updateGraph();
}
//Keyboard commands
document.addEventListener('keydown', e => {
console.log(e.ctrlKey, e.key);
if (e.key === 'Escape') {
closeContextMenus(contextMenuEd, contextMenuSt, contextMenuBg);
closeMenuItem();
closeFileDisplay();
deselect();
rightSelection = null;
searchInput.blur();
} else if (!e.ctrlKey) return;
switch (e.key) {
case 'f':
e.preventDefault();
searchInput.focus();
openSearchMenu(<HTMLElement>searchContainer.parentElement);
break;
case 'o':
e.preventDefault();
openFileDisplay();
default:
break;
}
})