522 lines
13 KiB
JavaScript
522 lines
13 KiB
JavaScript
/* jshint -W072 */ // Allow several required modules
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define([
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'core/ArrayUtilities',
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'core/EventObject',
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'svg/SVGUtilities',
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'svg/SVGShapes',
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'./components/BaseComponent',
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'./components/Block',
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'./components/Parallel',
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'./components/Marker',
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'./components/AgentCap',
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'./components/AgentHighlight',
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'./components/Connect',
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'./components/Note',
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], (
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array,
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EventObject,
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svg,
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SVGShapes,
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BaseComponent
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) => {
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/* jshint +W072 */
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'use strict';
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function findExtremes(agentInfos, agentNames) {
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let min = null;
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let max = null;
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agentNames.forEach((name) => {
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const info = agentInfos.get(name);
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if(min === null || info.index < min.index) {
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min = info;
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}
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if(max === null || info.index > max.index) {
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max = info;
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}
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});
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return {
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left: min.label,
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right: max.label,
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};
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}
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function makeThemes(themes) {
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if(themes.length === 0) {
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throw new Error('Cannot render without a theme');
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}
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const themeMap = new Map();
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themes.forEach((theme) => {
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themeMap.set(theme.name, theme);
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});
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themeMap.set('', themes[0]);
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return themeMap;
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}
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let globalNamespace = 0;
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function parseNamespace(namespace) {
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if(namespace === null) {
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namespace = 'R' + globalNamespace;
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++ globalNamespace;
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}
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return namespace;
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}
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return class Renderer extends EventObject {
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constructor({
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themes = [],
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namespace = null,
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components = null,
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SVGTextBlockClass = SVGShapes.TextBlock,
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} = {}) {
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super();
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if(components === null) {
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components = BaseComponent.getComponents();
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}
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this.separationStage = this.separationStage.bind(this);
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this.renderStage = this.renderStage.bind(this);
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this.addSeparation = this.addSeparation.bind(this);
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this.addDef = this.addDef.bind(this);
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this.state = {};
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this.width = 0;
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this.height = 0;
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this.themes = makeThemes(themes);
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this.theme = null;
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this.namespace = parseNamespace(namespace);
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this.components = components;
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this.SVGTextBlockClass = SVGTextBlockClass;
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this.knownDefs = new Set();
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this.highlights = new Map();
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this.currentHighlight = -1;
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this.buildStaticElements();
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this.components.forEach((component) => {
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component.makeState(this.state);
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});
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}
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addTheme(theme) {
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this.themes.set(theme.name, theme);
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}
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buildStaticElements() {
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this.base = svg.makeContainer();
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this.defs = svg.make('defs');
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this.mask = svg.make('mask', {
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'id': this.namespace + 'LineMask',
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'maskUnits': 'userSpaceOnUse',
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});
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this.maskReveal = svg.make('rect', {'fill': '#FFFFFF'});
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this.agentLines = svg.make('g', {
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'mask': 'url(#' + this.namespace + 'LineMask)',
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});
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this.blocks = svg.make('g');
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this.sections = svg.make('g');
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this.actionShapes = svg.make('g');
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this.actionLabels = svg.make('g');
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this.base.appendChild(this.defs);
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this.base.appendChild(this.agentLines);
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this.base.appendChild(this.blocks);
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this.base.appendChild(this.sections);
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this.base.appendChild(this.actionShapes);
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this.base.appendChild(this.actionLabels);
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this.title = new this.SVGTextBlockClass(this.base);
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this.sizer = new this.SVGTextBlockClass.SizeTester(this.base);
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}
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addDef(name, generator) {
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const namespacedName = this.namespace + name;
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if(this.knownDefs.has(name)) {
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return namespacedName;
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}
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this.knownDefs.add(name);
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const def = generator();
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def.setAttribute('id', namespacedName);
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this.defs.appendChild(def);
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return namespacedName;
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}
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addSeparation(agentName1, agentName2, dist) {
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const info1 = this.agentInfos.get(agentName1);
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const info2 = this.agentInfos.get(agentName2);
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const d1 = info1.separations.get(agentName2) || 0;
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info1.separations.set(agentName2, Math.max(d1, dist));
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const d2 = info2.separations.get(agentName1) || 0;
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info2.separations.set(agentName1, Math.max(d2, dist));
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}
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separationStage(stage) {
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const agentSpaces = new Map();
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const agentNames = this.visibleAgents.slice();
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const addSpacing = (agentName, {left, right}) => {
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const current = agentSpaces.get(agentName);
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current.left = Math.max(current.left, left);
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current.right = Math.max(current.right, right);
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};
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this.agentInfos.forEach((agentInfo) => {
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const rad = agentInfo.currentRad;
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agentInfo.currentMaxRad = rad;
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agentSpaces.set(agentInfo.label, {left: rad, right: rad});
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});
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const env = {
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theme: this.theme,
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agentInfos: this.agentInfos,
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visibleAgents: this.visibleAgents,
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textSizer: this.sizer,
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addSpacing,
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addSeparation: this.addSeparation,
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components: this.components,
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};
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const component = this.components.get(stage.type);
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if(!component) {
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throw new Error('Unknown component: ' + stage.type);
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}
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component.separationPre(stage, env);
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component.separation(stage, env);
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array.mergeSets(agentNames, this.visibleAgents);
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agentNames.forEach((agentNameR) => {
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const infoR = this.agentInfos.get(agentNameR);
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const sepR = agentSpaces.get(agentNameR);
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infoR.maxRPad = Math.max(infoR.maxRPad, sepR.right);
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infoR.maxLPad = Math.max(infoR.maxLPad, sepR.left);
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agentNames.forEach((agentNameL) => {
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const infoL = this.agentInfos.get(agentNameL);
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if(infoL.index >= infoR.index) {
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return;
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}
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const sepL = agentSpaces.get(agentNameL);
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this.addSeparation(
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agentNameR,
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agentNameL,
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sepR.left + sepL.right + this.theme.agentMargin
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);
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});
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});
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}
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checkAgentRange(agentNames, topY = 0) {
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if(agentNames.length === 0) {
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return topY;
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}
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const {left, right} = findExtremes(this.agentInfos, agentNames);
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const leftX = this.agentInfos.get(left).x;
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const rightX = this.agentInfos.get(right).x;
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let baseY = topY;
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this.agentInfos.forEach((agentInfo) => {
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if(agentInfo.x >= leftX && agentInfo.x <= rightX) {
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baseY = Math.max(baseY, agentInfo.latestY);
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}
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});
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return baseY;
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}
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markAgentRange(agentNames, y) {
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if(agentNames.length === 0) {
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return;
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}
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const {left, right} = findExtremes(this.agentInfos, agentNames);
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const leftX = this.agentInfos.get(left).x;
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const rightX = this.agentInfos.get(right).x;
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this.agentInfos.forEach((agentInfo) => {
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if(agentInfo.x >= leftX && agentInfo.x <= rightX) {
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agentInfo.latestY = y;
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}
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});
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}
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drawAgentLine(agentInfo, toY) {
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if(
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agentInfo.latestYStart === null ||
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toY <= agentInfo.latestYStart
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) {
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return;
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}
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const r = agentInfo.currentRad;
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if(r > 0) {
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this.agentLines.appendChild(svg.make('rect', Object.assign({
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'x': agentInfo.x - r,
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'y': agentInfo.latestYStart,
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'width': r * 2,
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'height': toY - agentInfo.latestYStart,
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'class': 'agent-' + agentInfo.index + '-line',
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}, this.theme.agentLineAttrs)));
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} else {
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this.agentLines.appendChild(svg.make('line', Object.assign({
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'x1': agentInfo.x,
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'y1': agentInfo.latestYStart,
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'x2': agentInfo.x,
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'y2': toY,
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'class': 'agent-' + agentInfo.index + '-line',
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}, this.theme.agentLineAttrs)));
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}
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}
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addHighlightObject(line, o) {
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let list = this.highlights.get(line);
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if(!list) {
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list = [];
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this.highlights.set(line, list);
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}
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list.push(o);
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}
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renderStage(stage) {
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this.agentInfos.forEach((agentInfo) => {
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const rad = agentInfo.currentRad;
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agentInfo.currentMaxRad = rad;
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});
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const envPre = {
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theme: this.theme,
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agentInfos: this.agentInfos,
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textSizer: this.sizer,
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state: this.state,
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components: this.components,
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};
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const component = this.components.get(stage.type);
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const result = component.renderPre(stage, envPre);
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const {topShift, agentNames, asynchronousY} =
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BaseComponent.cleanRenderPreResult(result, this.currentY);
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const topY = this.checkAgentRange(agentNames, asynchronousY);
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const eventOut = () => {
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this.trigger('mouseout');
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};
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const makeRegion = (o, stageOverride = null) => {
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if(!o) {
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o = svg.make('g');
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}
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const targetStage = (stageOverride || stage);
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this.addHighlightObject(targetStage.ln, o);
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o.setAttribute('class', 'region');
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o.addEventListener('mouseenter', () => {
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this.trigger('mouseover', [targetStage]);
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});
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o.addEventListener('mouseleave', eventOut);
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o.addEventListener('click', () => {
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this.trigger('click', [targetStage]);
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});
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this.actionLabels.appendChild(o);
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return o;
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};
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const env = {
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topY,
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primaryY: topY + topShift,
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blockLayer: this.blocks,
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sectionLayer: this.sections,
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shapeLayer: this.actionShapes,
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labelLayer: this.actionLabels,
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maskLayer: this.mask,
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theme: this.theme,
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agentInfos: this.agentInfos,
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textSizer: this.sizer,
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SVGTextBlockClass: this.SVGTextBlockClass,
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state: this.state,
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drawAgentLine: (agentName, toY, andStop = false) => {
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const agentInfo = this.agentInfos.get(agentName);
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this.drawAgentLine(agentInfo, toY);
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agentInfo.latestYStart = andStop ? null : toY;
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},
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addDef: this.addDef,
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makeRegion,
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components: this.components,
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};
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const bottomY = Math.max(topY, component.render(stage, env) || 0);
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this.markAgentRange(agentNames, bottomY);
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this.currentY = bottomY;
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}
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positionAgents() {
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// Map guarantees insertion-order iteration
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const orderedInfos = [];
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this.agentInfos.forEach((agentInfo) => {
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let currentX = 0;
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agentInfo.separations.forEach((dist, otherAgent) => {
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const otherAgentInfo = this.agentInfos.get(otherAgent);
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if(otherAgentInfo.index < agentInfo.index) {
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currentX = Math.max(currentX, otherAgentInfo.x + dist);
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}
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});
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agentInfo.x = currentX;
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orderedInfos.push(agentInfo);
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});
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let previousInfo = {x: 0};
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orderedInfos.reverse().forEach((agentInfo) => {
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let currentX = previousInfo.x;
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previousInfo = agentInfo;
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if(!agentInfo.anchorRight) {
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return;
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}
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agentInfo.separations.forEach((dist, otherAgent) => {
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const otherAgentInfo = this.agentInfos.get(otherAgent);
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if(otherAgentInfo.index > agentInfo.index) {
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currentX = Math.min(currentX, otherAgentInfo.x - dist);
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}
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});
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agentInfo.x = currentX;
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});
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this.agentInfos.forEach(({label, x, maxRPad, maxLPad}) => {
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this.minX = Math.min(this.minX, x - maxLPad);
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this.maxX = Math.max(this.maxX, x + maxRPad);
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});
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}
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buildAgentInfos(agents, stages) {
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this.agentInfos = new Map();
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agents.forEach((agent, index) => {
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this.agentInfos.set(agent.name, {
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label: agent.name,
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anchorRight: agent.anchorRight,
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index,
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x: null,
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latestYStart: null,
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currentRad: 0,
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currentMaxRad: 0,
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latestY: 0,
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maxRPad: 0,
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maxLPad: 0,
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separations: new Map(),
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});
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});
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this.visibleAgents = ['[', ']'];
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stages.forEach(this.separationStage);
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this.positionAgents();
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}
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updateBounds(stagesHeight) {
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const cx = (this.minX + this.maxX) / 2;
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const titleY = ((this.title.height > 0) ?
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(-this.theme.titleMargin - this.title.height) : 0
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);
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this.title.set({x: cx, y: titleY});
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const halfTitleWidth = this.title.width / 2;
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const margin = this.theme.outerMargin;
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const x0 = Math.min(this.minX, cx - halfTitleWidth) - margin;
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const x1 = Math.max(this.maxX, cx + halfTitleWidth) + margin;
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const y0 = titleY - margin;
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const y1 = stagesHeight + margin;
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this.maskReveal.setAttribute('x', x0);
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this.maskReveal.setAttribute('y', y0);
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this.maskReveal.setAttribute('width', x1 - x0);
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this.maskReveal.setAttribute('height', y1 - y0);
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this.base.setAttribute('viewBox', (
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x0 + ' ' + y0 + ' ' +
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(x1 - x0) + ' ' + (y1 - y0)
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));
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this.width = (x1 - x0);
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this.height = (y1 - y0);
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}
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_reset() {
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this.knownDefs.clear();
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this.highlights.clear();
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this.currentHighlight = -1;
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svg.empty(this.defs);
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svg.empty(this.mask);
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svg.empty(this.agentLines);
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svg.empty(this.blocks);
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svg.empty(this.sections);
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svg.empty(this.actionShapes);
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svg.empty(this.actionLabels);
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this.mask.appendChild(this.maskReveal);
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this.defs.appendChild(this.mask);
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this.components.forEach((component) => {
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component.resetState(this.state);
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});
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}
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setHighlight(line = null) {
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if(line === null || !this.highlights.has(line)) {
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line = -1;
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}
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if(this.currentHighlight === line) {
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return;
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}
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if(this.currentHighlight !== -1) {
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this.highlights.get(this.currentHighlight).forEach((o) => {
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o.setAttribute('class', 'region');
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});
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}
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if(line !== -1) {
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this.highlights.get(line).forEach((o) => {
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o.setAttribute('class', 'region focus');
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});
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}
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this.currentHighlight = line;
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}
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render(sequence) {
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const prevHighlight = this.currentHighlight;
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this._reset();
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const themeName = sequence.meta.theme;
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this.theme = this.themes.get(themeName);
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if(!this.theme) {
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this.theme = this.themes.get('');
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}
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this.title.set({
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attrs: this.theme.titleAttrs,
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text: sequence.meta.title,
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});
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this.minX = 0;
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this.maxX = 0;
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this.buildAgentInfos(sequence.agents, sequence.stages);
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this.currentY = 0;
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sequence.stages.forEach(this.renderStage);
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const bottomY = this.checkAgentRange(['[', ']'], this.currentY);
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const stagesHeight = Math.max(bottomY - this.theme.actionMargin, 0);
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this.updateBounds(stagesHeight);
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this.sizer.resetCache();
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this.sizer.detach();
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this.setHighlight(prevHighlight);
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}
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getThemeNames() {
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return (Array.from(this.themes.keys())
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.filter((name) => (name !== ''))
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);
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}
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getThemes() {
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return this.getThemeNames().map((name) => this.themes.get(name));
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}
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getAgentX(name) {
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return this.agentInfos.get(name).x;
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}
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svg() {
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return this.base;
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}
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};
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});
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