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perf(spellcheck): Limit misspellings to 15, recycle nodes

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This commit is contained in:
Ben Gotow 2016-05-17 18:48:01 -07:00
parent 045177b38d
commit 15ef74e0e2
1 changed files with 20 additions and 5 deletions
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25
internal_packages/composer-spellcheck/lib/spellcheck-composer-extension.es6
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@ -1,5 +1,21 @@
import {DOMUtils, ComposerExtension, NylasSpellchecker} from 'nylas-exports';
const recycled = [];
function getSpellingNodeForText(text) {
let node = recycled.pop();
if (!node) {
node = document.createElement('spelling');
node.classList.add('misspelled');
}
node.textContent = text;
return node;
}
function recycleSpellingNode(node) {
recycled.push(node);
}
export default class SpellcheckComposerExtension extends ComposerExtension {
static onContentChanged({editor}) {
@ -71,6 +87,7 @@ export default class SpellcheckComposerExtension extends ComposerExtension {
while (node.firstChild) {
node.parentNode.insertBefore(node.firstChild, node);
}
recycleSpellingNode(node);
node.parentNode.removeChild(node);
}
});
@ -97,7 +114,7 @@ export default class SpellcheckComposerExtension extends ComposerExtension {
while (true) {
const node = nodeList.shift();
if ((node === undefined) || (nodeMisspellingsFound > 30)) {
if ((node === undefined) || (nodeMisspellingsFound > 15)) {
break;
}
@ -106,7 +123,7 @@ export default class SpellcheckComposerExtension extends ComposerExtension {
while (true) {
const match = nodeWordRegexp.exec(nodeContent);
if ((match === null) || (nodeMisspellingsFound > 30)) {
if ((match === null) || (nodeMisspellingsFound > 15)) {
break;
}
@ -120,9 +137,7 @@ export default class SpellcheckComposerExtension extends ComposerExtension {
const matchNode = (match.index === 0) ? node : node.splitText(match.index);
const afterMatchNode = matchNode.splitText(match[0].length);
const spellingSpan = document.createElement('spelling');
spellingSpan.classList.add('misspelled');
spellingSpan.innerText = match[0];
const spellingSpan = getSpellingNodeForText(match[0]);
matchNode.parentNode.replaceChild(spellingSpan, matchNode);
for (const prop of ['anchor', 'focus']) {