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Code Issues Releases Wiki Activity

Improve creation of rows in dynamic filtering pane of popup panel

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- Reuse existing rows without first removing them
- New rows appended all at once through DocumentFragment
This commit is contained in:
Raymond Hill 2018-12-29 08:43:44 -05:00
parent 87cf95c04b
commit 09fb3549f3
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GPG Key ID: 25E1490B761470C2
1 changed files with 50 additions and 42 deletions
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92
src/js/popup.js
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@ -75,7 +75,6 @@ let allDomains = {};
let allDomainCount = 0;
let allHostnameRows = [];
let touchedDomainCount = 0;
let rowsToRecycle = uDom();
let cachedPopupHash = '';
// https://github.com/gorhill/uBlock/issues/2550
@ -202,41 +201,6 @@ const rulekeyCompare = function(a, b) {
/******************************************************************************/
const addFirewallRow = function(des) {
let row = rowsToRecycle.pop();
if ( row.length === 0 ) {
row = uDom('#templates > div:nth-of-type(1)').clone();
}
row.attr('data-des', des);
const hnDetails = popupData.hostnameDict[des] || {};
const isDomain = des === hnDetails.domain;
const prettyDomainName = punycode.toUnicode(des);
const isPunycoded = prettyDomainName !== des;
const span = row.nodeAt(0).querySelector('span:first-of-type');
span.classList.toggle(
'isIDN',
isPunycoded && reCyrillicAmbiguous.test(prettyDomainName) === true &&
reCyrillicNonAmbiguous.test(prettyDomainName) === false
);
span.querySelector('span').textContent = prettyDomainName;
span.title = isDomain && isPunycoded ? des : '';
row.toggleClass('isDomain', isDomain)
.toggleClass('isSubDomain', !isDomain)
.toggleClass('allowed', hnDetails.allowCount !== 0)
.toggleClass('blocked', hnDetails.blockCount !== 0)
.toggleClass('totalAllowed', hnDetails.totalAllowCount !== 0)
.toggleClass('totalBlocked', hnDetails.totalBlockCount !== 0);
row.appendTo('#firewallContainer');
return row;
};
/******************************************************************************/
const updateFirewallCell = function(scope, des, type, rule) {
const row = document.querySelector(
`#firewallContainer div[data-des="${des}"][data-type="${type}"]`
@ -337,13 +301,57 @@ const buildAllFirewallRows = function() {
}
dfHotspots.detach();
// Remove and reuse all rows: the order may have changed, we can't just
// reuse them in-place.
rowsToRecycle =
uDom('#firewallContainer > div:nth-of-type(7) ~ div').detach();
// Update incrementally: reuse existing rows if possible.
let rowContainer = document.getElementById('firewallContainer');
let toAppend = document.createDocumentFragment();
let rowTemplate = document.querySelector('#templates > div:nth-of-type(1)');
let row = rowContainer.querySelector('div:nth-of-type(7) + div');
for ( const row of allHostnameRows ) {
addFirewallRow(row);
for ( const des of allHostnameRows ) {
if ( row === null ) {
row = rowTemplate.cloneNode(true);
toAppend.appendChild(row);
}
row.setAttribute('data-des', des);
const hnDetails = popupData.hostnameDict[des] || {};
const isDomain = des === hnDetails.domain;
const prettyDomainName = punycode.toUnicode(des);
const isPunycoded = prettyDomainName !== des;
const span = row.querySelector('span:first-of-type');
span.classList.toggle(
'isIDN',
isPunycoded &&
reCyrillicAmbiguous.test(prettyDomainName) === true &&
reCyrillicNonAmbiguous.test(prettyDomainName) === false
);
span.querySelector('span').textContent = prettyDomainName;
span.title = isDomain && isPunycoded ? des : '';
const classList = row.classList;
classList.toggle('isDomain', isDomain);
classList.toggle('isSubDomain', !isDomain);
classList.toggle('allowed', hnDetails.allowCount !== 0);
classList.toggle('blocked', hnDetails.blockCount !== 0);
classList.toggle('totalAllowed', hnDetails.totalAllowCount !== 0);
classList.toggle('totalBlocked', hnDetails.totalBlockCount !== 0);
row = row.nextElementSibling;
}
// Remove unused trailing rows
if ( row !== null ) {
while ( row.nextElementSibling !== null ) {
rowContainer.removeChild(row.nextElementSibling);
}
rowContainer.removeChild(row);
}
// Add new rows all at once
if ( toAppend.childElementCount !== 0 ) {
rowContainer.appendChild(toAppend);
}
if ( dfPaneBuilt !== true && popupData.advancedUserEnabled ) {