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Display the index of the currently active search result in the matches counter of the findbar (issue 6993, bug 1062025)

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For the `PDFFindBar` implementation, similar to the native Firefox findbar, the matches count displayed is now limited to a (hopefully) reasonable value.

*Please note:* In order to enable this feature in the `MOZCENTRAL` version, a follow-up patch will be required once this has landed in `mozilla-central`.
This commit is contained in:
Jonas Jenwald 2018-09-08 14:19:34 +02:00
parent 510f1c84d2
commit c9a2564882
7 changed files with 77 additions and 29 deletions
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35
web/pdf_find_controller.js
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@ -68,7 +68,7 @@ class PDFFindController {
this.pageContents = []; // Stores the text for each page.
this.pageMatches = [];
this.pageMatchesLength = null;
this.matchCount = 0;
this.matchesCountTotal = 0;
this.selected = { // Currently selected match.
pageIdx: -1,
matchIdx: -1,
@ -269,8 +269,9 @@ class PDFFindController {
}
// Update the match count.
if (this.pageMatches[pageIndex].length > 0) {
this.matchCount += this.pageMatches[pageIndex].length;
const pageMatchesCount = this.pageMatches[pageIndex].length;
if (pageMatchesCount > 0) {
this.matchesCountTotal += pageMatchesCount;
this._updateUIResultsCount();
}
}
@ -338,7 +339,7 @@ class PDFFindController {
this.hadMatch = false;
this.resumePageIdx = null;
this.pageMatches = [];
this.matchCount = 0;
this.matchesCountTotal = 0;
this.pageMatchesLength = null;
for (let i = 0; i < numPages; i++) {
@ -475,16 +476,32 @@ class PDFFindController {
}
}
_updateUIResultsCount() {
if (this.onUpdateResultsCount) {
this.onUpdateResultsCount(this.matchCount);
_requestMatchesCount() {
const { pageIdx, matchIdx, } = this.selected;
let current = 0;
if (matchIdx !== -1) {
for (let i = 0; i < pageIdx; i++) {
current += (this.pageMatches[i] && this.pageMatches[i].length) || 0;
}
current += matchIdx + 1;
}
return { current, total: this.matchesCountTotal, };
}
_updateUIResultsCount() {
if (!this.onUpdateResultsCount) {
return;
}
const matchesCount = this._requestMatchesCount();
this.onUpdateResultsCount(matchesCount);
}
_updateUIState(state, previous) {
if (this.onUpdateState) {
this.onUpdateState(state, previous, this.matchCount);
if (!this.onUpdateState) {
return;
}
const matchesCount = this._requestMatchesCount();
this.onUpdateState(state, previous, matchesCount);
}
}