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Increase recalculation performance by additional caching

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This commit is contained in:
Tobias Hößl 2020-06-07 11:44:07 +02:00
parent 18bc495bd8
commit bc3b8be78d
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GPG Key ID: 1D780C7599C2D2A2
1 changed files with 30 additions and 18 deletions
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16
client/src/app/core/ui-services/linenumbering.service.ts
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@ -377,8 +377,11 @@ export class LinenumberingService {
* @returns {LineNumberRange} * @returns {LineNumberRange}
*/ */
public getLineNumberRange(html: string): LineNumberRange { public getLineNumberRange(html: string): LineNumberRange {
const cacheKey = this.djb2hash(html);
let range = this.lineNumberCache.get(cacheKey);
if (!range) {
const fragment = this.htmlToFragment(html); const fragment = this.htmlToFragment(html);
const range = { range = {
from: null, from: null,
to: null to: null
}; };
@ -393,6 +396,8 @@ export class LinenumberingService {
range.to = number + 1; range.to = number + 1;
} }
} }
}
this.lineNumberCache.put(cacheKey, range);
return range; return range;
} }
@ -482,10 +487,17 @@ export class LinenumberingService {
* @return {string[]} * @return {string[]}
*/ */
public splitToParagraphs(html: string): string[] { public splitToParagraphs(html: string): string[] {
const cacheKey = this.djb2hash(html);
let cachedParagraphs = this.lineNumberCache.get(cacheKey);
if (!cachedParagraphs) {
const fragment = this.htmlToFragment(html); const fragment = this.htmlToFragment(html);
return this.splitNodeToParagraphs(fragment).map((node: Element): string => { cachedParagraphs = this.splitNodeToParagraphs(fragment).map((node: Element): string => {
return node.outerHTML; return node.outerHTML;
}); });
this.lineNumberCache.put(cacheKey, cachedParagraphs);
}
return cachedParagraphs;
} }
/** /**