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Extract one page after the other and not all pages at once

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Julian Viereck 2012-04-08 16:18:43 -07:00
parent 3c77291013
commit c9fb5637c3
3 changed files with 49 additions and 49 deletions
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31
web/viewer.js
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@ -491,7 +491,7 @@ var PDFView = {
var pdf;
try {
pdf = new PDFJS.PDFDoc(data);
this.pdfDoc = pdf = new PDFJS.PDFDoc(data);
} catch (e) {
this.error('An error occurred while reading the PDF.', e);
}
@ -576,22 +576,18 @@ var PDFView = {
if (pdfTitle)
document.title = pdfTitle + ' - ' + document.title;
// loosing pdf reference here, starting text indexing in 500ms
setTimeout((function loadStartTextExtraction() {
this.startTextExtraction(pdf);
}).bind(this), 500);
delete PDFView.extractedText;
},
startTextExtraction: function pdfViewStartTextExtraction(pdf) {
var searchResults = document.getElementById('searchResults');
searchResults.textContent = '';
pdf.textExtracted = function pdfTextExtracted(index) {
PDFView.extractedText = index;
};
pdf.textExtracted = (function pdfTextExtracted(pageIdx, content) {
this.search();
}).bind(this);
pdf.extractText();
this.pdfDoc = pdf;
},
search: function pdfViewStartSearch() {
@ -604,21 +600,19 @@ var PDFView = {
}
var searchResults = document.getElementById('searchResults');
if (!('extractedText' in PDFView)) {
// not indexed yet, repeat in 1 second
searchResults.textContent = 'Searching...';
setTimeout(this.search.bind(this), 1000);
return;
}
var searchTermsInput = document.getElementById('searchTermsInput');
searchResults.removeAttribute('hidden');
searchResults.textContent = '';
var terms = searchTermsInput.value;
if (!terms)
return;
// simple search: removing spaces and hyphens, then scanning every
terms = terms.replace(/\s-/g, '').toLowerCase();
var index = PDFView.extractedText;
var index = PDFView.pdfDoc.pageText;
var pageFound = false;
for (var i = 0, ii = index.length; i < ii; i++) {
var pageText = index[i].replace(/\s-/g, '').toLowerCase();
@ -708,6 +702,9 @@ var PDFView = {
var searchTermsInput = document.getElementById('searchTermsInput');
searchTermsInput.focus();
// Start text extraction as soon as the search gets displayed.
this.pdfDoc.extractText();
} else {
searchScrollView.setAttribute('hidden', 'true');
searchSwitchButton.removeAttribute('data-selected');