gitlabhq/vendor/assets/javascripts/branch-graph.js

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!function(){
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var BranchGraph = function(element, options){
this.element = element;
this.options = options;
this.preparedCommits = {};
this.mtime = 0;
this.mspace = 0;
this.parents = {};
this.colors = ["#000"];
this.load();
};
BranchGraph.prototype.load = function(){
$.ajax({
url: this.options.url,
method: 'get',
dataType: 'json',
success: $.proxy(function(data){
$('.loading', this.element).hide();
this.prepareData(data.days, data.commits);
this.buildGraph();
}, this)
});
};
BranchGraph.prototype.prepareData = function(days, commits){
this.days = days;
this.dayCount = days.length;
this.commits = commits;
this.commitCount = commits.length;
this.collectParents();
this.mtime += 4;
this.mspace += 10;
for (var i = 0; i < this.commitCount; i++) {
if (this.commits[i].id in this.parents) {
this.commits[i].isParent = true;
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}
this.preparedCommits[this.commits[i].id] = this.commits[i];
}
this.collectColors();
};
BranchGraph.prototype.collectParents = function(){
for (var i = 0; i < this.commitCount; i++) {
for (var j = 0, jj = this.commits[i].parents.length; j < jj; j++) {
this.parents[this.commits[i].parents[j][0]] = true;
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}
this.mtime = Math.max(this.mtime, this.commits[i].time);
this.mspace = Math.max(this.mspace, this.commits[i].space);
}
};
BranchGraph.prototype.collectColors = function(){
for (var k = 0; k < this.mspace; k++) {
this.colors.push(Raphael.getColor(.8));
// Skipping a few colors in the spectrum to get more contrast between colors
Raphael.getColor();Raphael.getColor();
}
};
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BranchGraph.prototype.buildGraph = function(){
var graphWidth = $(this.element).width()
, ch = this.mspace * 20 + 100
, cw = Math.max(graphWidth, this.mtime * 20 + 260)
, r = Raphael(this.element.get(0), cw, ch)
, top = r.set()
, cuday = 0
, cumonth = ""
, offsetX = 20
, offsetY = 60
, barWidth = Math.max(graphWidth, this.dayCount * 20 + 320)
, scrollLeft = cw;
this.raphael = r;
r.rect(0, 0, barWidth, 20).attr({fill: "#222"});
r.rect(0, 20, barWidth, 20).attr({fill: "#444"});
for (mm = 0; mm < this.dayCount; mm++) {
if(this.days[mm] != null){
if(cuday != this.days[mm][0]){
// Dates
r.text(offsetX + mm * 20, 31, this.days[mm][0]).attr({
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font: "12px Monaco, monospace",
fill: "#DDD"
});
cuday = this.days[mm][0];
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}
if(cumonth != this.days[mm][1]){
// Months
r.text(offsetX + mm * 20, 11, this.days[mm][1]).attr({
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font: "12px Monaco, monospace",
fill: "#EEE"
});
cumonth = this.days[mm][1];
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}
}
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}
for (i = 0; i < this.commitCount; i++) {
var x = offsetX + 20 * this.commits[i].time
, y = offsetY + 10 * this.commits[i].space
, c
, ps;
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// Draw dot
r.circle(x, y, 3).attr({
fill: this.colors[this.commits[i].space],
stroke: "none"
});
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// Draw lines
for (var j = 0, jj = this.commits[i].parents.length; j < jj; j++) {
c = this.preparedCommits[this.commits[i].parents[j][0]];
ps = this.commits[i].parent_spaces[j];
if (c) {
var cx = offsetX + 20 * c.time
, cy = offsetY + 10 * c.space
, psy = offsetY + 10 * ps;
if (c.space == this.commits[i].space && c.space == ps) {
r.path([
"M", x, y,
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"L", cx, cy
]).attr({
stroke: this.colors[c.space],
"stroke-width": 2
});
} else if (c.space < this.commits[i].space) {
r.path([
"M", x - 5, y,
"l-5-2,0,4,5,-2",
"L", x - 10, y,
"L", x - 15, psy,
"L", cx + 5, psy,
"L", cx, cy])
.attr({
stroke: this.colors[this.commits[i].space],
"stroke-width": 2
});
} else {
r.path([
"M", x - 3, y + 6,
"l-4,3,4,2,0,-5",
"L", x - 5, y + 10,
"L", x - 10, psy,
"L", cx + 5, psy,
"L", cx, cy])
.attr({
stroke: this.colors[c.space],
"stroke-width": 2
});
}
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}
}
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if (this.commits[i].refs) {
this.appendLabel(x, y, this.commits[i].refs);
// The main branch is displayed in the center.
re = new RegExp('(^| )' + this.options.ref + '( |$)');
if (this.commits[i].refs.match(re)) {
scrollLeft = x - graphWidth / 2;
}
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}
this.appendAnchor(top, this.commits[i], x, y);
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}
top.toFront();
this.element.scrollLeft(scrollLeft);
this.bindEvents();
};
BranchGraph.prototype.bindEvents = function(){
var drag = {}
, element = this.element;
var dragger = function(event){
element.scrollLeft(drag.sl - (event.clientX - drag.x));
element.scrollTop(drag.st - (event.clientY - drag.y));
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};
element.on({
mousedown: function (event) {
drag = {
x: event.clientX,
y: event.clientY,
st: element.scrollTop(),
sl: element.scrollLeft()
};
$(window).on('mousemove', dragger);
}
});
$(window).on({
mouseup: function(){
//bars.animate({opacity: 0}, 300);
$(window).off('mousemove', dragger);
},
keydown: function(event){
if(event.keyCode == 37){
// left
element.scrollLeft( element.scrollLeft() - 50);
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}
if(event.keyCode == 38){
// top
element.scrollTop( element.scrollTop() - 50);
}
if(event.keyCode == 39){
// right
element.scrollLeft( element.scrollLeft() + 50);
}
if(event.keyCode == 40){
// bottom
element.scrollTop( element.scrollTop() + 50);
}
}
});
};
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BranchGraph.prototype.appendLabel = function(x, y, refs){
var r = this.raphael
, shortrefs = refs
, text, textbox, rect;
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if (shortrefs.length > 17){
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// Truncate if longer than 15 chars
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shortrefs = shortrefs.substr(0,15) + "…";
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}
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text = r.text(x+5, y+8 + 10, shortrefs).attr({
font: "10px Monaco, monospace",
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fill: "#FFF",
title: refs
});
textbox = text.getBBox();
text.transform([
't', textbox.height/-4, textbox.width/2 + 5,
'r90'
]);
// Create rectangle based on the size of the textbox
rect = r.rect(x, y, textbox.width + 15, textbox.height + 5, 4).attr({
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"fill": "#000",
"fill-opacity": .7,
"stroke": "none"
});
triangle = r.path([
'M', x, y + 5,
'L', x + 4, y + 15,
'L', x - 4, y + 15,
'Z'
]).attr({
"fill": "#000",
"fill-opacity": .7,
"stroke": "none"
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});
// Rotate and reposition rectangle over text
rect.transform([
'r', 90, x, y,
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't', 15, -9
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]);
// Set text to front
text.toFront();
};
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BranchGraph.prototype.appendAnchor = function(top, commit, x, y) {
var r = this.raphael
, options = this.options
, anchor;
anchor = r.circle(x, y, 10).attr({
fill: "#000",
opacity: 0,
cursor: "pointer"
})
.click(function(){
window.open(options.commit_url.replace('%s', commit.id), '_blank');
})
.hover(function(){
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this.tooltip = r.commitTooltip(x, y + 5, commit);
top.push(this.tooltip.insertBefore(this));
}, function(){
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this.tooltip && this.tooltip.remove() && delete this.tooltip;
});
top.push(anchor);
};
this.BranchGraph = BranchGraph;
}(this);
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Raphael.fn.commitTooltip = function(x, y, commit){
var nameText, idText, messageText
, boxWidth = 300
, boxHeight = 200;
nameText = this.text(x, y + 10, commit.author.name);
idText = this.text(x, y + 35, commit.id);
messageText = this.text(x, y + 50, commit.message);
textSet = this.set(nameText, idText, messageText).attr({
"text-anchor": "start",
"font": "12px Monaco, monospace"
});
nameText.attr({
"font": "14px Arial",
"font-weight": "bold"
});
idText.attr({
"fill": "#AAA"
});
textWrap(messageText, boxWidth - 50);
var rect = this.rect(x - 10, y - 10, boxWidth, 100, 4).attr({
"fill": "#FFF",
"stroke": "#000",
"stroke-linecap": "round",
"stroke-width": 2
});
var tooltip = this.set(rect, textSet);
rect.attr({
"height" : tooltip.getBBox().height + 10,
"width" : tooltip.getBBox().width + 10
});
tooltip.transform([
't', 20, 20
]);
return tooltip;
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};
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function textWrap(t, width) {
var content = t.attr("text");
var abc = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
t.attr({
"text" : abc
});
var letterWidth = t.getBBox().width / abc.length;
t.attr({
"text" : content
});
var words = content.split(" ");
var x = 0, s = [];
for ( var i = 0; i < words.length; i++) {
var l = words[i].length;
if (x + (l * letterWidth) > width) {
s.push("\n");
x = 0;
}
x += l * letterWidth;
s.push(words[i] + " ");
}
t.attr({
"text" : s.join("")
});
var b = t.getBBox()
, h = Math.abs(b.y2) - Math.abs(b.y) + 1;
t.attr({
"y": b.y + h
});
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}