Mercurial > hg
view mercurial/templates/static/mercurial.js @ 35566:baca93a47992
hgweb: make different kinds of commits look differently on /graph
Regular hg log -G uses different symbols for some graph nodes, such as commits
that close branches and hidden commits. It also marks the currently checked out
commit with "@". Since hg serve is sometimes used/recommended as a more visual
alternative to CLI, it makes sense to port these features to hgweb.
"graphnode" includes the style of a particular node and also if it's currently
checked out or not, both at the same time. This is different from hg log -G
(which uses templatekw.showgraphnode), where there's only place for one
character, but hgweb doesn't have this limitation, since it uses <canvas> and
not plain text. I'm using one string of 1 or 2 characters in this patch, it's
not the most self-explanatory format, but it's concise, uses the same
characters as hg log -G, and is internal to hgweb (i.e. not used for
json-graph).
I'm more or less fine with how things look visually, but there's still room for
improvement. Feel free to criticise or point me to good-looking graphs of this
kind for inspiration.
author | Anton Shestakov <av6@dwimlabs.net> |
---|---|
date | Tue, 19 Dec 2017 20:41:25 +0800 |
parents | 8b958d21b19d |
children | 45a816361926 |
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// mercurial.js - JavaScript utility functions // // Rendering of branch DAGs on the client side // Display of elapsed time // Show or hide diffstat // // Copyright 2008 Dirkjan Ochtman <dirkjan AT ochtman DOT nl> // Copyright 2006 Alexander Schremmer <alex AT alexanderweb DOT de> // // derived from code written by Scott James Remnant <scott@ubuntu.com> // Copyright 2005 Canonical Ltd. // // This software may be used and distributed according to the terms // of the GNU General Public License, incorporated herein by reference. var colors = [ [ 1.0, 0.0, 0.0 ], [ 1.0, 1.0, 0.0 ], [ 0.0, 1.0, 0.0 ], [ 0.0, 1.0, 1.0 ], [ 0.0, 0.0, 1.0 ], [ 1.0, 0.0, 1.0 ] ]; function Graph() { this.canvas = document.getElementById('graph'); if (window.G_vmlCanvasManager) this.canvas = window.G_vmlCanvasManager.initElement(this.canvas); this.ctx = this.canvas.getContext('2d'); this.ctx.strokeStyle = 'rgb(0, 0, 0)'; this.ctx.fillStyle = 'rgb(0, 0, 0)'; this.bg = [0, 4]; this.cell = [2, 0]; this.columns = 0; } Graph.prototype = { reset: function() { this.bg = [0, 4]; this.cell = [2, 0]; this.columns = 0; }, scale: function(height) { this.bg_height = height; this.box_size = Math.floor(this.bg_height / 1.2); this.cell_height = this.box_size; }, setColor: function(color, bg, fg) { // Set the colour. // // If color is a string, expect an hexadecimal RGB // value and apply it unchanged. If color is a number, // pick a distinct colour based on an internal wheel; // the bg parameter provides the value that should be // assigned to the 'zero' colours and the fg parameter // provides the multiplier that should be applied to // the foreground colours. var s; if(typeof color === "string") { s = "#" + color; } else { //typeof color === "number" color %= colors.length; var red = (colors[color][0] * fg) || bg; var green = (colors[color][1] * fg) || bg; var blue = (colors[color][2] * fg) || bg; red = Math.round(red * 255); green = Math.round(green * 255); blue = Math.round(blue * 255); s = 'rgb(' + red + ', ' + green + ', ' + blue + ')'; } this.ctx.strokeStyle = s; this.ctx.fillStyle = s; return s; }, edge: function(x0, y0, x1, y1, color, width) { this.setColor(color, 0.0, 0.65); if(width >= 0) this.ctx.lineWidth = width; this.ctx.beginPath(); this.ctx.moveTo(x0, y0); this.ctx.lineTo(x1, y1); this.ctx.stroke(); }, graphNodeCurrent: function(x, y, radius) { this.ctx.lineWidth = 2; this.ctx.beginPath(); this.ctx.arc(x, y, radius * 1.75, 0, Math.PI * 2, true); this.ctx.stroke(); }, graphNodeClosing: function(x, y, radius) { this.ctx.fillRect(x - radius, y - 1.5, radius * 2, 3); }, graphNodeUnstable: function(x, y, radius) { var x30 = radius * Math.cos(Math.PI / 6); var y30 = radius * Math.sin(Math.PI / 6); this.ctx.lineWidth = 2; this.ctx.beginPath(); this.ctx.moveTo(x, y - radius); this.ctx.lineTo(x, y + radius); this.ctx.moveTo(x - x30, y - y30); this.ctx.lineTo(x + x30, y + y30); this.ctx.moveTo(x - x30, y + y30); this.ctx.lineTo(x + x30, y - y30); this.ctx.stroke(); }, graphNodeObsolete: function(x, y, radius) { var p45 = radius * Math.cos(Math.PI / 4); this.ctx.lineWidth = 3; this.ctx.beginPath(); this.ctx.moveTo(x - p45, y - p45); this.ctx.lineTo(x + p45, y + p45); this.ctx.moveTo(x - p45, y + p45); this.ctx.lineTo(x + p45, y - p45); this.ctx.stroke(); }, graphNodeNormal: function(x, y, radius) { this.ctx.beginPath(); this.ctx.arc(x, y, radius, 0, Math.PI * 2, true); this.ctx.fill(); }, vertex: function(x, y, radius, color, parity, cur) { this.ctx.save(); this.setColor(color, 0.25, 0.75); if (cur.graphnode[0] === '@') { this.graphNodeCurrent(x, y, radius); } switch (cur.graphnode.substr(-1)) { case '_': this.graphNodeClosing(x, y, radius); break; case '*': this.graphNodeUnstable(x, y, radius); break; case 'x': this.graphNodeObsolete(x, y, radius); break; default: this.graphNodeNormal(x, y, radius); } this.ctx.restore(); var left = (this.bg_height - this.box_size) + (this.columns + 1) * this.box_size; var item = document.querySelector('[data-node="' + cur.node + '"]'); if (item) { item.style.paddingLeft = left + 'px'; } }, render: function(data) { var i, j, cur, line, start, end, color, x, y, x0, y0, x1, y1, column, radius; var cols = 0; for (i = 0; i < data.length; i++) { cur = data[i]; for (j = 0; j < cur.edges.length; j++) { line = cur.edges[j]; cols = Math.max(cols, line[0], line[1]); } } this.canvas.width = (cols + 1) * this.bg_height; this.canvas.height = (data.length + 1) * this.bg_height - 27; for (i = 0; i < data.length; i++) { var parity = i % 2; this.cell[1] += this.bg_height; this.bg[1] += this.bg_height; cur = data[i]; var fold = false; var prevWidth = this.ctx.lineWidth; for (j = 0; j < cur.edges.length; j++) { line = cur.edges[j]; start = line[0]; end = line[1]; color = line[2]; var width = line[3]; if(width < 0) width = prevWidth; var branchcolor = line[4]; if(branchcolor) color = branchcolor; if (end > this.columns || start > this.columns) { this.columns += 1; } if (start === this.columns && start > end) { fold = true; } x0 = this.cell[0] + this.box_size * start + this.box_size / 2; y0 = this.bg[1] - this.bg_height / 2; x1 = this.cell[0] + this.box_size * end + this.box_size / 2; y1 = this.bg[1] + this.bg_height / 2; this.edge(x0, y0, x1, y1, color, width); } this.ctx.lineWidth = prevWidth; // Draw the revision node in the right column column = cur.vertex[0]; color = cur.vertex[1]; radius = this.box_size / 8; x = this.cell[0] + this.box_size * column + this.box_size / 2; y = this.bg[1] - this.bg_height / 2; this.vertex(x, y, radius, color, parity, cur); if (fold) this.columns -= 1; } } }; function process_dates(parentSelector){ // derived from code from mercurial/templatefilter.py var scales = { 'year': 365 * 24 * 60 * 60, 'month': 30 * 24 * 60 * 60, 'week': 7 * 24 * 60 * 60, 'day': 24 * 60 * 60, 'hour': 60 * 60, 'minute': 60, 'second': 1 }; function format(count, string){ var ret = count + ' ' + string; if (count > 1){ ret = ret + 's'; } return ret; } function shortdate(date){ var ret = date.getFullYear() + '-'; // getMonth() gives a 0-11 result var month = date.getMonth() + 1; if (month <= 9){ ret += '0' + month; } else { ret += month; } ret += '-'; var day = date.getDate(); if (day <= 9){ ret += '0' + day; } else { ret += day; } return ret; } function age(datestr){ var now = new Date(); var once = new Date(datestr); if (isNaN(once.getTime())){ // parsing error return datestr; } var delta = Math.floor((now.getTime() - once.getTime()) / 1000); var future = false; if (delta < 0){ future = true; delta = -delta; if (delta > (30 * scales.year)){ return "in the distant future"; } } if (delta > (2 * scales.year)){ return shortdate(once); } for (var unit in scales){ if (!scales.hasOwnProperty(unit)) { continue; } var s = scales[unit]; var n = Math.floor(delta / s); if ((n >= 2) || (s === 1)){ if (future){ return format(n, unit) + ' from now'; } else { return format(n, unit) + ' ago'; } } } } var nodes = document.querySelectorAll((parentSelector || '') + ' .age'); var dateclass = new RegExp('\\bdate\\b'); for (var i=0; i<nodes.length; ++i){ var node = nodes[i]; var classes = node.className; var agevalue = age(node.textContent); if (dateclass.test(classes)){ // We want both: date + (age) node.textContent += ' ('+agevalue+')'; } else { node.title = node.textContent; node.textContent = agevalue; } } } function toggleDiffstat() { var curdetails = document.getElementById('diffstatdetails').style.display; var curexpand = curdetails === 'none' ? 'inline' : 'none'; document.getElementById('diffstatdetails').style.display = curexpand; document.getElementById('diffstatexpand').style.display = curdetails; } function toggleLinewrap() { function getLinewrap() { var nodes = document.getElementsByClassName('sourcelines'); // if there are no such nodes, error is thrown here return nodes[0].classList.contains('wrap'); } function setLinewrap(enable) { var nodes = document.getElementsByClassName('sourcelines'); var i; for (i = 0; i < nodes.length; i++) { if (enable) { nodes[i].classList.add('wrap'); } else { nodes[i].classList.remove('wrap'); } } var links = document.getElementsByClassName('linewraplink'); for (i = 0; i < links.length; i++) { links[i].innerHTML = enable ? 'on' : 'off'; } } setLinewrap(!getLinewrap()); } function format(str, replacements) { return str.replace(/%(\w+)%/g, function(match, p1) { return String(replacements[p1]); }); } function makeRequest(url, method, onstart, onsuccess, onerror, oncomplete) { var xhr = new XMLHttpRequest(); xhr.onreadystatechange = function() { if (xhr.readyState === 4) { try { if (xhr.status === 200) { onsuccess(xhr.responseText); } else { throw 'server error'; } } catch (e) { onerror(e); } finally { oncomplete(); } } }; xhr.open(method, url); xhr.overrideMimeType("text/xhtml; charset=" + document.characterSet.toLowerCase()); xhr.send(); onstart(); return xhr; } function removeByClassName(className) { var nodes = document.getElementsByClassName(className); while (nodes.length) { nodes[0].parentNode.removeChild(nodes[0]); } } function docFromHTML(html) { var doc = document.implementation.createHTMLDocument(''); doc.documentElement.innerHTML = html; return doc; } function appendFormatHTML(element, formatStr, replacements) { element.insertAdjacentHTML('beforeend', format(formatStr, replacements)); } function adoptChildren(from, to) { var nodes = from.children; var curClass = 'c' + Date.now(); while (nodes.length) { var node = nodes[0]; node = document.adoptNode(node); node.classList.add(curClass); to.appendChild(node); } process_dates('.' + curClass); } function ajaxScrollInit(urlFormat, nextPageVar, nextPageVarGet, containerSelector, messageFormat, mode) { var updateInitiated = false; var container = document.querySelector(containerSelector); function scrollHandler() { if (updateInitiated) { return; } var scrollHeight = document.documentElement.scrollHeight; var clientHeight = document.documentElement.clientHeight; var scrollTop = document.body.scrollTop || document.documentElement.scrollTop; if (scrollHeight - (scrollTop + clientHeight) < 50) { updateInitiated = true; removeByClassName('scroll-loading-error'); container.lastElementChild.classList.add('scroll-separator'); if (!nextPageVar) { var message = { 'class': 'scroll-loading-info', text: 'No more entries' }; appendFormatHTML(container, messageFormat, message); return; } makeRequest( format(urlFormat, {next: nextPageVar}), 'GET', function onstart() { var message = { 'class': 'scroll-loading', text: 'Loading...' }; appendFormatHTML(container, messageFormat, message); }, function onsuccess(htmlText) { var doc = docFromHTML(htmlText); if (mode === 'graph') { var graph = window.graph; var dataStr = htmlText.match(/^\s*var data = (.*);$/m)[1]; var data = JSON.parse(dataStr); if (data.length < nextPageVar) { nextPageVar = undefined; } graph.reset(); adoptChildren(doc.querySelector('#graphnodes'), container.querySelector('#graphnodes')); graph.render(data); } else { adoptChildren(doc.querySelector(containerSelector), container); } nextPageVar = nextPageVarGet(htmlText, nextPageVar); }, function onerror(errorText) { var message = { 'class': 'scroll-loading-error', text: 'Error: ' + errorText }; appendFormatHTML(container, messageFormat, message); }, function oncomplete() { removeByClassName('scroll-loading'); updateInitiated = false; scrollHandler(); } ); } } window.addEventListener('scroll', scrollHandler); window.addEventListener('resize', scrollHandler); scrollHandler(); } function renderDiffOptsForm() { // We use URLSearchParams for query string manipulation. Old browsers don't // support this API. if (!("URLSearchParams" in window)) { return; } var form = document.getElementById("diffopts-form"); var KEYS = [ "ignorews", "ignorewsamount", "ignorewseol", "ignoreblanklines", ]; var urlParams = new window.URLSearchParams(window.location.search); function updateAndRefresh(e) { var checkbox = e.target; var name = checkbox.id.substr(0, checkbox.id.indexOf("-")); urlParams.set(name, checkbox.checked ? "1" : "0"); window.location.search = urlParams.toString(); } var allChecked = form.getAttribute("data-ignorews") === "1"; for (var i = 0; i < KEYS.length; i++) { var key = KEYS[i]; var checkbox = document.getElementById(key + "-checkbox"); if (!checkbox) { continue; } var currentValue = form.getAttribute("data-" + key); checkbox.checked = currentValue !== "0"; // ignorews implies ignorewsamount and ignorewseol. if (allChecked && (key === "ignorewsamount" || key === "ignorewseol")) { checkbox.checked = true; checkbox.disabled = true; } checkbox.addEventListener("change", updateAndRefresh, false); } form.style.display = 'block'; } document.addEventListener('DOMContentLoaded', function() { process_dates(); }, false);