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// mercurial.js - JavaScript utility functions
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//
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// Rendering of branch DAGs on the client side
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// Display of elapsed time
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// Show or hide diffstat
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//
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// Copyright 2008 Dirkjan Ochtman <dirkjan AT ochtman DOT nl>
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// Copyright 2006 Alexander Schremmer <alex AT alexanderweb DOT de>
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//
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// derived from code written by Scott James Remnant <scott@ubuntu.com>
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// Copyright 2005 Canonical Ltd.
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//
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// This software may be used and distributed according to the terms
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// of the GNU General Public License, incorporated herein by reference.
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var colors = [
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[ 1.0, 0.0, 0.0 ],
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[ 1.0, 1.0, 0.0 ],
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[ 0.0, 1.0, 0.0 ],
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[ 0.0, 1.0, 1.0 ],
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[ 0.0, 0.0, 1.0 ],
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[ 1.0, 0.0, 1.0 ]
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];
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function Graph() {
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this.canvas = document.getElementById('graph');
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this.ctx = this.canvas.getContext('2d');
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this.ctx.strokeStyle = 'rgb(0, 0, 0)';
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this.ctx.fillStyle = 'rgb(0, 0, 0)';
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this.bg = [0, 4];
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this.cell = [2, 0];
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this.columns = 0;
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}
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Graph.prototype = {
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reset: function() {
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this.bg = [0, 4];
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this.cell = [2, 0];
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this.columns = 0;
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},
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scale: function(height) {
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this.bg_height = height;
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this.box_size = Math.floor(this.bg_height / 1.2);
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this.cell_height = this.box_size;
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},
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setColor: function(color, bg, fg) {
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// Set the colour.
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//
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// If color is a string, expect an hexadecimal RGB
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// value and apply it unchanged. If color is a number,
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// pick a distinct colour based on an internal wheel;
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// the bg parameter provides the value that should be
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// assigned to the 'zero' colours and the fg parameter
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// provides the multiplier that should be applied to
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// the foreground colours.
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var s;
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if(typeof color === "string") {
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s = "#" + color;
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} else { //typeof color === "number"
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color %= colors.length;
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var red = (colors[color][0] * fg) || bg;
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var green = (colors[color][1] * fg) || bg;
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var blue = (colors[color][2] * fg) || bg;
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red = Math.round(red * 255);
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green = Math.round(green * 255);
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blue = Math.round(blue * 255);
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s = 'rgb(' + red + ', ' + green + ', ' + blue + ')';
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}
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this.ctx.strokeStyle = s;
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this.ctx.fillStyle = s;
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return s;
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},
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edge: function(x0, y0, x1, y1, color, width) {
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this.setColor(color, 0.0, 0.65);
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if(width >= 0)
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this.ctx.lineWidth = width;
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this.ctx.beginPath();
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this.ctx.moveTo(x0, y0);
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this.ctx.lineTo(x1, y1);
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this.ctx.stroke();
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},
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graphNodeCurrent: function(x, y, radius) {
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this.ctx.lineWidth = 2;
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this.ctx.beginPath();
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this.ctx.arc(x, y, radius * 1.75, 0, Math.PI * 2, true);
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this.ctx.stroke();
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},
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graphNodeClosing: function(x, y, radius) {
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this.ctx.fillRect(x - radius, y - 1.5, radius * 2, 3);
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},
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graphNodeUnstable: function(x, y, radius) {
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var x30 = radius * Math.cos(Math.PI / 6);
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var y30 = radius * Math.sin(Math.PI / 6);
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this.ctx.lineWidth = 2;
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this.ctx.beginPath();
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this.ctx.moveTo(x, y - radius);
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this.ctx.lineTo(x, y + radius);
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this.ctx.moveTo(x - x30, y - y30);
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this.ctx.lineTo(x + x30, y + y30);
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this.ctx.moveTo(x - x30, y + y30);
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this.ctx.lineTo(x + x30, y - y30);
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this.ctx.stroke();
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},
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graphNodeObsolete: function(x, y, radius) {
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var p45 = radius * Math.cos(Math.PI / 4);
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this.ctx.lineWidth = 3;
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this.ctx.beginPath();
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this.ctx.moveTo(x - p45, y - p45);
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this.ctx.lineTo(x + p45, y + p45);
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this.ctx.moveTo(x - p45, y + p45);
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this.ctx.lineTo(x + p45, y - p45);
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this.ctx.stroke();
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},
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graphNodeNormal: function(x, y, radius) {
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this.ctx.beginPath();
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this.ctx.arc(x, y, radius, 0, Math.PI * 2, true);
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this.ctx.fill();
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},
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vertex: function(x, y, radius, color, parity, cur) {
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this.ctx.save();
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this.setColor(color, 0.25, 0.75);
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if (cur.graphnode[0] === '@') {
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this.graphNodeCurrent(x, y, radius);
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}
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switch (cur.graphnode.substr(-1)) {
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case '_':
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this.graphNodeClosing(x, y, radius);
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break;
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case '*':
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this.graphNodeUnstable(x, y, radius);
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break;
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case 'x':
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this.graphNodeObsolete(x, y, radius);
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break;
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default:
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this.graphNodeNormal(x, y, radius);
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}
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this.ctx.restore();
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var left = (this.bg_height - this.box_size) + (this.columns + 1) * this.box_size;
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var item = document.querySelector('[data-node="' + cur.node + '"]');
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if (item) {
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item.style.paddingLeft = left + 'px';
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}
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},
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render: function(data) {
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var i, j, cur, line, start, end, color, x, y, x0, y0, x1, y1, column, radius;
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var cols = 0;
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for (i = 0; i < data.length; i++) {
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cur = data[i];
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for (j = 0; j < cur.edges.length; j++) {
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line = cur.edges[j];
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cols = Math.max(cols, line[0], line[1]);
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}
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}
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this.canvas.width = (cols + 1) * this.bg_height;
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this.canvas.height = (data.length + 1) * this.bg_height - 27;
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for (i = 0; i < data.length; i++) {
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var parity = i % 2;
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this.cell[1] += this.bg_height;
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this.bg[1] += this.bg_height;
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cur = data[i];
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var fold = false;
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var prevWidth = this.ctx.lineWidth;
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for (j = 0; j < cur.edges.length; j++) {
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line = cur.edges[j];
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start = line[0];
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end = line[1];
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color = line[2];
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var width = line[3];
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if(width < 0)
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width = prevWidth;
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var branchcolor = line[4];
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if(branchcolor)
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color = branchcolor;
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if (end > this.columns || start > this.columns) {
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this.columns += 1;
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}
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if (start === this.columns && start > end) {
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fold = true;
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}
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x0 = this.cell[0] + this.box_size * start + this.box_size / 2;
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y0 = this.bg[1] - this.bg_height / 2;
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x1 = this.cell[0] + this.box_size * end + this.box_size / 2;
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y1 = this.bg[1] + this.bg_height / 2;
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this.edge(x0, y0, x1, y1, color, width);
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}
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this.ctx.lineWidth = prevWidth;
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// Draw the revision node in the right column
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column = cur.vertex[0];
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color = cur.vertex[1];
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radius = this.box_size / 8;
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x = this.cell[0] + this.box_size * column + this.box_size / 2;
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y = this.bg[1] - this.bg_height / 2;
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this.vertex(x, y, radius, color, parity, cur);
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if (fold) this.columns -= 1;
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}
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}
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};
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function process_dates(parentSelector){
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// derived from code from mercurial/templatefilter.py
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var scales = {
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'year': 365 * 24 * 60 * 60,
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'month': 30 * 24 * 60 * 60,
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'week': 7 * 24 * 60 * 60,
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'day': 24 * 60 * 60,
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'hour': 60 * 60,
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'minute': 60,
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'second': 1
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};
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function format(count, string){
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var ret = count + ' ' + string;
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if (count > 1){
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ret = ret + 's';
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}
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return ret;
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}
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function shortdate(date){
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var ret = date.getFullYear() + '-';
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// getMonth() gives a 0-11 result
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var month = date.getMonth() + 1;
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if (month <= 9){
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ret += '0' + month;
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} else {
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ret += month;
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}
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ret += '-';
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var day = date.getDate();
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if (day <= 9){
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ret += '0' + day;
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} else {
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ret += day;
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}
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return ret;
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}
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function age(datestr){
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var now = new Date();
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var once = new Date(datestr);
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if (isNaN(once.getTime())){
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// parsing error
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return datestr;
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}
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var delta = Math.floor((now.getTime() - once.getTime()) / 1000);
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var future = false;
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if (delta < 0){
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future = true;
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delta = -delta;
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if (delta > (30 * scales.year)){
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return "in the distant future";
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}
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}
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if (delta > (2 * scales.year)){
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return shortdate(once);
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}
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for (var unit in scales){
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if (!scales.hasOwnProperty(unit)) { continue; }
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var s = scales[unit];
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var n = Math.floor(delta / s);
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if ((n >= 2) || (s === 1)){
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if (future){
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return format(n, unit) + ' from now';
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} else {
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return format(n, unit) + ' ago';
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}
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}
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}
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}
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var nodes = document.querySelectorAll((parentSelector || '') + ' .age');
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var dateclass = new RegExp('\\bdate\\b');
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for (var i=0; i<nodes.length; ++i){
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var node = nodes[i];
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var classes = node.className;
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var agevalue = age(node.textContent);
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if (dateclass.test(classes)){
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// We want both: date + (age)
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node.textContent += ' ('+agevalue+')';
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} else {
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node.title = node.textContent;
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node.textContent = agevalue;
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}
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}
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}
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function toggleDiffstat(event) {
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var curdetails = document.getElementById('diffstatdetails').style.display;
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var curexpand = curdetails === 'none' ? 'inline' : 'none';
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document.getElementById('diffstatdetails').style.display = curexpand;
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document.getElementById('diffstatexpand').style.display = curdetails;
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event.preventDefault();
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}
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function toggleLinewrap(event) {
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function getLinewrap() {
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var nodes = document.getElementsByClassName('sourcelines');
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// if there are no such nodes, error is thrown here
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return nodes[0].classList.contains('wrap');
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}
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function setLinewrap(enable) {
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var nodes = document.getElementsByClassName('sourcelines');
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var i;
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for (i = 0; i < nodes.length; i++) {
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if (enable) {
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nodes[i].classList.add('wrap');
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} else {
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nodes[i].classList.remove('wrap');
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}
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}
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var links = document.getElementsByClassName('linewraplink');
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for (i = 0; i < links.length; i++) {
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links[i].innerHTML = enable ? 'on' : 'off';
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}
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}
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setLinewrap(!getLinewrap());
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event.preventDefault();
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}
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function format(str, replacements) {
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return str.replace(/%(\w+)%/g, function(match, p1) {
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return String(replacements[p1]);
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});
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}
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function makeRequest(url, method, onstart, onsuccess, onerror, oncomplete) {
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var xhr = new XMLHttpRequest();
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xhr.onreadystatechange = function() {
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if (xhr.readyState === 4) {
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try {
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if (xhr.status === 200) {
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onsuccess(xhr.responseText);
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} else {
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throw 'server error';
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}
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} catch (e) {
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onerror(e);
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} finally {
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oncomplete();
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}
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}
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};
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xhr.open(method, url);
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xhr.overrideMimeType("text/xhtml; charset=" + document.characterSet.toLowerCase());
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xhr.send();
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onstart();
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return xhr;
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}
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function removeByClassName(className) {
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var nodes = document.getElementsByClassName(className);
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while (nodes.length) {
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nodes[0].parentNode.removeChild(nodes[0]);
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}
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}
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function docFromHTML(html) {
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var doc = document.implementation.createHTMLDocument('');
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doc.documentElement.innerHTML = html;
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return doc;
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}
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function appendFormatHTML(element, formatStr, replacements) {
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element.insertAdjacentHTML('beforeend', format(formatStr, replacements));
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}
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function adoptChildren(from, to) {
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var nodes = from.children;
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var curClass = 'c' + Date.now();
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while (nodes.length) {
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var node = nodes[0];
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node = document.adoptNode(node);
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node.classList.add(curClass);
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to.appendChild(node);
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}
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process_dates('.' + curClass);
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}
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function ajaxScrollInit(urlFormat,
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nextPageVar,
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nextPageVarGet,
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containerSelector,
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messageFormat,
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mode) {
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var updateInitiated = false;
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var container = document.querySelector(containerSelector);
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function scrollHandler() {
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if (updateInitiated) {
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return;
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}
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var scrollHeight = document.documentElement.scrollHeight;
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var clientHeight = document.documentElement.clientHeight;
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var scrollTop = document.body.scrollTop || document.documentElement.scrollTop;
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if (scrollHeight - (scrollTop + clientHeight) < 50) {
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updateInitiated = true;
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removeByClassName('scroll-loading-error');
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container.lastElementChild.classList.add('scroll-separator');
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if (!nextPageVar) {
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var message = {
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'class': 'scroll-loading-info',
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text: 'No more entries'
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};
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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);
|
|
|
graph.reset();
|
|
|
adoptChildren(doc.querySelector('#graphnodes'), container.querySelector('#graphnodes'));
|
|
|
graph.render(data);
|
|
|
} else {
|
|
|
adoptChildren(doc.querySelector(containerSelector), container);
|
|
|
}
|
|
|
|
|
|
nextPageVar = nextPageVarGet(htmlText);
|
|
|
},
|
|
|
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';
|
|
|
}
|
|
|
|
|
|
function addDiffStatToggle() {
|
|
|
var els = document.getElementsByClassName("diffstattoggle");
|
|
|
|
|
|
for (var i = 0; i < els.length; i++) {
|
|
|
els[i].addEventListener("click", toggleDiffstat, false);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
function addLineWrapToggle() {
|
|
|
var els = document.getElementsByClassName("linewraptoggle");
|
|
|
|
|
|
for (var i = 0; i < els.length; i++) {
|
|
|
var nodes = els[i].getElementsByClassName("linewraplink");
|
|
|
|
|
|
for (var j = 0; j < nodes.length; j++) {
|
|
|
nodes[j].addEventListener("click", toggleLinewrap, false);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
document.addEventListener('DOMContentLoaded', function() {
|
|
|
process_dates();
|
|
|
addDiffStatToggle();
|
|
|
addLineWrapToggle();
|
|
|
}, false);
|
|
|
|
