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Reduce the number of redundant updatetextlayermatches events dispatched when calculating matches in PDFFindController

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Currently `PDFFindController._calculateMatch` is (indirectly) dispatching an `updatetextlayermatches` event for every *single* page of the document. For short documents, such as the `tracemonkey` file, this probably doesn't matter too much, but for documents with a couple of thousand pages it seems unfortunate.

It shouldn't be necessary, in general, to dispatch `updatetextlayermatches` events here, since that's already being taken care of in `PDFFindController._updateMatch` which is always called when a match has been found.
However, when `highlightAll` is set we still need to ensure that pages which finished rendered *before* searching begun are updated correctly.
This commit is contained in:
Jonas Jenwald 2018-10-31 15:54:10 +01:00
parent 42b7bb4751
commit 014b7a3147
1 changed files with 5 additions and 1 deletions
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6
web/pdf_find_controller.js
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@ -345,7 +345,11 @@ class PDFFindController {
this._calculateWordMatch(query, pageIndex, pageContent, entireWord);
}
this._updatePage(pageIndex);
// When `highlightAll` is set, ensure that the matches on previously
// rendered (and still active) pages are correctly highlighted.
if (this._state.highlightAll) {
this._updatePage(pageIndex);
}
if (this._resumePageIdx === pageIndex) {
this._resumePageIdx = null;
this._nextPageMatch();