gitlab-org--gitlab-foss/app/assets/javascripts/line_highlighter.js

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JavaScript
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2016-07-24 16:45:11 -04:00
/*= require jquery.scrollTo */
(function() {
var bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
this.LineHighlighter = (function() {
LineHighlighter.prototype.highlightClass = 'hll';
LineHighlighter.prototype._hash = '';
function LineHighlighter(hash) {
var range;
if (hash == null) {
hash = location.hash;
}
this.setHash = bind(this.setHash, this);
this.highlightLine = bind(this.highlightLine, this);
this.clickHandler = bind(this.clickHandler, this);
this._hash = hash;
this.bindEvents();
if (hash !== '') {
range = this.hashToRange(hash);
if (range[0]) {
this.highlightRange(range);
$.scrollTo("#L" + range[0], {
offset: -150
});
}
}
}
LineHighlighter.prototype.bindEvents = function() {
$('#blob-content-holder').on('mousedown', 'a[data-line-number]', this.clickHandler);
return $('#blob-content-holder').on('click', 'a[data-line-number]', function(event) {
return event.preventDefault();
});
};
LineHighlighter.prototype.clickHandler = function(event) {
var current, lineNumber, range;
event.preventDefault();
this.clearHighlight();
lineNumber = $(event.target).closest('a').data('line-number');
current = this.hashToRange(this._hash);
if (!(current[0] && event.shiftKey)) {
this.setHash(lineNumber);
return this.highlightLine(lineNumber);
} else if (event.shiftKey) {
if (lineNumber < current[0]) {
range = [lineNumber, current[0]];
} else {
range = [current[0], lineNumber];
}
this.setHash(range[0], range[1]);
return this.highlightRange(range);
}
};
LineHighlighter.prototype.clearHighlight = function() {
return $("." + this.highlightClass).removeClass(this.highlightClass);
};
LineHighlighter.prototype.hashToRange = function(hash) {
var first, last, matches;
matches = hash.match(/^#?L(\d+)(?:-(\d+))?$/);
if (matches && matches.length) {
first = parseInt(matches[1]);
last = matches[2] ? parseInt(matches[2]) : null;
return [first, last];
} else {
return [null, null];
}
};
LineHighlighter.prototype.highlightLine = function(lineNumber) {
return $("#LC" + lineNumber).addClass(this.highlightClass);
};
LineHighlighter.prototype.highlightRange = function(range) {
var i, lineNumber, ref, ref1, results;
if (range[1]) {
results = [];
for (lineNumber = i = ref = range[0], ref1 = range[1]; ref <= ref1 ? i <= ref1 : i >= ref1; lineNumber = ref <= ref1 ? ++i : --i) {
results.push(this.highlightLine(lineNumber));
}
return results;
} else {
return this.highlightLine(range[0]);
}
};
LineHighlighter.prototype.setHash = function(firstLineNumber, lastLineNumber) {
var hash;
if (lastLineNumber) {
hash = "#L" + firstLineNumber + "-" + lastLineNumber;
} else {
hash = "#L" + firstLineNumber;
}
this._hash = hash;
return this.__setLocationHash__(hash);
};
LineHighlighter.prototype.__setLocationHash__ = function(value) {
return history.pushState({
turbolinks: false,
url: value
}, document.title, value);
};
return LineHighlighter;
})();
}).call(this);