| author |
Chris Eldredge <chris.eldredge@gmail.com> |
| date |
Tue, 02 Oct 2012 15:21:18 +0100 |
| parents |
299ff954bfa8 |
| children |
(none) |
// 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 (navigator.userAgent.indexOf('MSIE') >= 0) 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.cur = [0, 0];
this.line_width = 3;
this.bg = [0, 4];
this.cell = [2, 0];
this.columns = 0;
this.revlink = '';
this.scale = function(height) {
this.bg_height = height;
this.box_size = Math.floor(this.bg_height / 1.2);
this.cell_height = this.box_size;
}
function colorPart(num) {
num *= 255
num = num < 0 ? 0 : num;
num = num > 255 ? 255 : num;
var digits = Math.round(num).toString(16);
if (num < 16) {
return '0' + digits;
} else {
return digits;
}
}
this.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;
}
this.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();
}
this.render = function(data) {
var backgrounds = '';
var nodedata = '';
for (var i in data) {
var parity = i % 2;
this.cell[1] += this.bg_height;
this.bg[1] += this.bg_height;
var cur = data[i];
var node = cur[1];
var edges = cur[2];
var fold = false;
var prevWidth = this.ctx.lineWidth;
for (var j in edges) {
line = 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) {
var 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 = node[0]
color = node[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;
var add = this.vertex(x, y, color, parity, cur);
backgrounds += add[0];
nodedata += add[1];
if (fold) this.columns -= 1;
}
document.getElementById('nodebgs').innerHTML += backgrounds;
document.getElementById('graphnodes').innerHTML += nodedata;
}
}
process_dates = (function(document, RegExp, Math, isNaN, Date, _false, _true){
// 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 (unit in scales){
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';
}
}
}
}
return function(){
var nodes = document.getElementsByTagName('*');
var ageclass = new RegExp('\\bage\\b');
var dateclass = new RegExp('\\bdate\\b');
for (var i=0; i<nodes.length; ++i){
var node = nodes[i];
var classes = node.className;
if (ageclass.test(classes)){
var agevalue = age(node.textContent);
if (dateclass.test(classes)){
// We want both: date + (age)
node.textContent += ' ('+agevalue+')';
} else {
node.textContent = agevalue;
}
}
}
}
})(document, RegExp, Math, isNaN, Date, false, true)
function showDiffstat() {
document.getElementById('diffstatdetails').style.display = 'inline';
document.getElementById('diffstatexpand').style.display = 'none';
}
function hideDiffstat() {
document.getElementById('diffstatdetails').style.display = 'none';
document.getElementById('diffstatexpand').style.display = 'inline';
}