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phab/webroot/rsrc/js/core/behavior-line-linker.js
3f0bc79e0ab1feature/better-testing

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behavior-line-linker.js
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/**
* @provides javelin-behavior-phabricator-line-linker
* @requires javelin-behavior
* javelin-stratcom
* javelin-dom
* javelin-history
*/
JX.behavior('phabricator-line-linker', function() {
var origin = null;
var target = null;
var root = null;
var editor_link = null;
try {
editor_link = JX.$('editor_link');
} catch (ex) {
// Ignore.
}
function getRowNumber(tr) {
var th = JX.DOM.find(tr, 'th', 'phabricator-source-line');
return +(th.textContent || th.innerText);
}
JX.Stratcom.listen(
'mousedown',
'phabricator-source-line',
function(e) {
if (!e.isNormalMouseEvent()) {
return;
}
origin = e.getNode('tag:tr');
target = origin;
root = e.getNode('phabricator-source');
e.kill();
});
JX.Stratcom.listen(
'click',
'phabricator-source-line',
function(e) {
e.kill();
});
var highlight = function(e) {
if (!origin || e.getNode('phabricator-source') !== root) {
return;
}
target = e.getNode('tag:tr');
var highlighting = false;
var source = null;
var trs = JX.DOM.scry(root, 'tr');
for (var i = 0; i < trs.length; i++) {
if (!highlighting && (trs[i] === origin || trs[i] === target)) {
highlighting = true;
source = trs[i];
}
JX.DOM.alterClass(trs[i], 'phabricator-source-highlight', highlighting);
if (trs[i] === (source === origin ? target : origin)) {
highlighting = false;
}
}
};
JX.Stratcom.listen('mouseover', 'phabricator-source', highlight);
JX.Stratcom.listen(
'mouseup',
null,
function(e) {
if (!origin) {
return;
}
highlight(e);
var o = getRowNumber(origin);
var t = getRowNumber(target);
var lines = (o == t ? o : Math.min(o, t) + '-' + Math.max(o, t));
var th = JX.DOM.find(origin, 'th', 'phabricator-source-line');
var uri = JX.DOM.find(th, 'a').href;
uri = uri.replace(/(.*\$)\d+/, '$1' + lines);
origin = null;
target = null;
e.kill();
JX.History.replace(uri);
if (editor_link.href) {
var editdata = JX.Stratcom.getData(editor_link);
editor_link.href = editdata.link_template.replace('%25l', o);
}
});
});
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