349 lines
9.9 KiB
JavaScript
349 lines
9.9 KiB
JavaScript
/* eslint-disable func-names, consistent-return */
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import $ from 'jquery';
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import axios from '~/lib/utils/axios_utils';
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import { __ } from '~/locale';
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import Raphael from './raphael';
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export default class BranchGraph {
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constructor(element1, options1) {
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this.element = element1;
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this.options = options1;
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this.scrollTop = this.scrollTop.bind(this);
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this.scrollBottom = this.scrollBottom.bind(this);
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this.scrollRight = this.scrollRight.bind(this);
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this.scrollLeft = this.scrollLeft.bind(this);
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this.scrollUp = this.scrollUp.bind(this);
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this.scrollDown = this.scrollDown.bind(this);
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this.preparedCommits = {};
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this.mtime = 0;
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this.mspace = 0;
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this.parents = {};
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this.colors = ['#000'];
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this.offsetX = 150;
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this.offsetY = 20;
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this.unitTime = 30;
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this.unitSpace = 10;
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this.prev_start = -1;
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this.load();
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}
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load() {
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axios
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.get(this.options.url)
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.then(({ data }) => {
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$('.loading', this.element).hide();
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this.prepareData(data.days, data.commits);
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this.buildGraph();
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})
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.catch(() => __('Error fetching network graph.'));
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}
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prepareData(days, commits) {
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this.days = days;
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this.commits = commits;
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this.collectParents();
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this.graphHeight = $(this.element).height();
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this.graphWidth = $(this.element).width();
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const ch = Math.max(this.graphHeight, this.offsetY + this.unitTime * this.mtime + 150);
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const cw = Math.max(this.graphWidth, this.offsetX + this.unitSpace * this.mspace + 300);
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this.r = Raphael(this.element.get(0), cw, ch);
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this.top = this.r.set();
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this.barHeight = Math.max(this.graphHeight, this.unitTime * this.days.length + 320);
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this.commits = this.commits.reduce((acc, commit) => {
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const updatedCommit = commit;
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if (commit.id in this.parents) {
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updatedCommit.isParent = true;
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}
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acc.push(updatedCommit);
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this.preparedCommits[commit.id] = commit;
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this.markCommit(commit);
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return acc;
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}, []);
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return this.collectColors();
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}
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collectParents() {
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const ref = this.commits;
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const results = [];
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ref.forEach((c) => {
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this.mtime = Math.max(this.mtime, c.time);
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this.mspace = Math.max(this.mspace, c.space);
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const ref1 = c.parents;
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const results1 = [];
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ref1.forEach((p) => {
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this.parents[p[0]] = true;
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results1.push((this.mspace = Math.max(this.mspace, p[1])));
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});
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results.push(results1);
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});
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return results;
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}
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collectColors() {
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let k = 0;
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const results = [];
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while (k < this.mspace) {
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this.colors.push(Raphael.getColor(0.8));
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// Skipping a few colors in the spectrum to get more contrast between colors
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Raphael.getColor();
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Raphael.getColor();
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results.push((k += 1));
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}
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return results;
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}
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buildGraph() {
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let mm = 0;
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let len = 0;
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let cuday = 0;
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let cumonth = '';
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let cuyear = '';
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const { r } = this;
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r.rect(0, 0, 40, this.barHeight).attr({
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fill: '#222',
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});
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r.rect(40, 0, 30, this.barHeight).attr({
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fill: '#444',
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});
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const ref = this.days;
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for (mm = 0, len = ref.length; mm < len; mm += 1) {
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const day = ref[mm];
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if (cuday !== day[0] || cumonth !== day[1] || cuyear !== day[2]) {
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// Dates
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r.text(55, this.offsetY + this.unitTime * mm, day[0]).attr({
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font: '12px Monaco, monospace',
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fill: '#BBB',
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});
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}
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if (cumonth !== day[1] || cuyear !== day[2]) {
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// Months
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r.text(20, this.offsetY + this.unitTime * mm, day[1]).attr({
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font: '12px Monaco, monospace',
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fill: '#EEE',
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});
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}
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[cuday, cumonth, cuyear] = day;
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}
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this.renderPartialGraph();
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return this.bindEvents();
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}
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renderPartialGraph() {
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const isGraphEdge = true;
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let i = 0;
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let start = Math.floor((this.element.scrollTop() - this.offsetY) / this.unitTime) - 10;
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if (start < 0) {
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start = 0;
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}
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let end = start + 40;
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if (this.commits.length < end) {
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end = this.commits.length;
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}
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if (this.prev_start === -1 || Math.abs(this.prev_start - start) > 10 || isGraphEdge) {
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i = start;
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this.prev_start = start;
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while (i < end) {
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const commit = this.commits[i];
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i += 1;
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if (commit.hasDrawn !== true) {
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const x = this.offsetX + this.unitSpace * (this.mspace - commit.space);
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const y = this.offsetY + this.unitTime * commit.time;
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this.drawDot(x, y, commit);
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this.drawLines(x, y, commit);
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this.appendLabel(x, y, commit);
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this.appendAnchor(x, y, commit);
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commit.hasDrawn = true;
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}
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}
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return this.top.toFront();
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}
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}
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bindEvents() {
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const { element } = this;
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return $(element).scroll(() => this.renderPartialGraph());
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}
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scrollDown() {
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this.element.scrollTop(this.element.scrollTop() + 50);
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return this.renderPartialGraph();
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}
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scrollUp() {
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this.element.scrollTop(this.element.scrollTop() - 50);
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return this.renderPartialGraph();
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}
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scrollLeft() {
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this.element.scrollLeft(this.element.scrollLeft() - 50);
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return this.renderPartialGraph();
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}
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scrollRight() {
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this.element.scrollLeft(this.element.scrollLeft() + 50);
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return this.renderPartialGraph();
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}
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scrollBottom() {
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return this.element.scrollTop(this.element.find('svg').height());
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}
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scrollTop() {
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return this.element.scrollTop(0);
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}
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appendLabel(x, y, commit) {
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if (!commit.refs) {
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return;
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}
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const { r } = this;
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let shortrefs = commit.refs;
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// Truncate if longer than 15 chars
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if (shortrefs.length > 17) {
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shortrefs = `${shortrefs.substr(0, 15)}…`;
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}
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const text = r.text(x + 4, y, shortrefs).attr({
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'text-anchor': 'start',
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font: '10px Monaco, monospace',
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fill: '#FFF',
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title: commit.refs,
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});
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const textbox = text.getBBox();
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// Create rectangle based on the size of the textbox
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const rect = r.rect(x, y - 7, textbox.width + 5, textbox.height + 5, 4).attr({
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fill: '#000',
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'fill-opacity': 0.5,
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stroke: 'none',
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});
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// Generate the triangle right of the tag box
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r.path(['M', x - 5, y, 'L', x - 15, y - 4, 'L', x - 15, y + 4, 'Z']).attr({
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fill: '#000',
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'fill-opacity': 0.5,
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stroke: 'none',
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});
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const label = r.set(rect, text);
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label.transform(['t', -rect.getBBox().width - 15, 0]);
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// Set text to front
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return text.toFront();
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}
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appendAnchor(x, y, commit) {
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const { r, top, options } = this;
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r.circle(x, y, 10)
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.attr({
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fill: '#000',
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opacity: 0,
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cursor: 'pointer',
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})
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.click(() => window.open(options.commit_url.replace('%s', commit.id), '_blank'))
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.hover(
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function () {
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this.tooltip = r.commitTooltip(x + 5, y, commit);
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top.push(this.tooltip.insertBefore(this));
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return this.tooltip.toFront();
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},
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function () {
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top.remove(this.tooltip);
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return this.tooltip && this.tooltip.remove() && delete this.tooltip;
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},
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);
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}
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drawDot(x, y, commit) {
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const { r } = this;
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r.circle(x, y, 3).attr({
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fill: this.colors[commit.space],
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stroke: 'none',
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});
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const avatarBoxX = this.offsetX + this.unitSpace * this.mspace + 10;
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const avatarBoxY = y - 10;
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r.rect(avatarBoxX, avatarBoxY, 20, 20).attr({
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stroke: this.colors[commit.space],
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'stroke-width': 2,
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});
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r.image(commit.author.icon, avatarBoxX, avatarBoxY, 20, 20);
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return r
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.text(this.offsetX + this.unitSpace * this.mspace + 35, y, commit.message.split('\n')[0])
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.attr({
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fill: 'currentColor',
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class: 'gl-text-body',
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'text-anchor': 'start',
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font: '14px Monaco, monospace',
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});
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}
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drawLines(x, y, commit) {
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let i = 0;
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let len = 0;
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let arrow = '';
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let offset = [];
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let color = [];
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const { r } = this;
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const ref = commit.parents;
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const results = [];
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for (i = 0, len = ref.length; i < len; i += 1) {
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const parent = ref[i];
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const parentCommit = this.preparedCommits[parent[0]];
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const parentY = this.offsetY + this.unitTime * parentCommit.time;
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const parentX1 = this.offsetX + this.unitSpace * (this.mspace - parentCommit.space);
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const parentX2 = this.offsetX + this.unitSpace * (this.mspace - parent[1]);
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// Set line color
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if (parentCommit.space <= commit.space) {
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color = this.colors[commit.space];
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} else {
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color = this.colors[parentCommit.space];
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}
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// Build line shape
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if (parent[1] === commit.space) {
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offset = [0, 5];
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arrow = 'l-2,5,4,0,-2,-5,0,5';
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} else if (parent[1] < commit.space) {
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offset = [3, 3];
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arrow = 'l5,0,-2,4,-3,-4,4,2';
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} else {
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offset = [-3, 3];
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arrow = 'l-5,0,2,4,3,-4,-4,2';
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}
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// Start point
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const route = ['M', x + offset[0], y + offset[1]];
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// Add arrow if not first parent
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if (i > 0) {
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route.push(arrow);
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}
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// Circumvent if overlap
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if (commit.space !== parentCommit.space || commit.space !== parent[1]) {
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route.push('L', parentX2, y + 10, 'L', parentX2, parentY - 5);
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}
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// End point
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route.push('L', parentX1, parentY);
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results.push(
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r.path(route).attr({
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stroke: color,
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'stroke-width': 2,
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}),
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);
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}
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return results;
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}
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markCommit(commit) {
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if (commit.id === this.options.commit_id) {
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const { r } = this;
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const x = this.offsetX + this.unitSpace * (this.mspace - commit.space);
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const y = this.offsetY + this.unitTime * commit.time;
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r.path(['M', x + 5, y, 'L', x + 15, y + 4, 'L', x + 15, y - 4, 'Z']).attr({
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fill: '#000',
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'fill-opacity': 0.5,
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stroke: 'none',
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});
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// Displayed in the center
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return this.element.scrollTop(y - this.graphHeight / 2);
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}
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}
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}
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