mirror of
https://github.com/mozilla/pdf.js.git
synced 2025-04-26 10:08:06 +02:00
Merge branch 'master' of git://github.com/mozilla/pdf.js.git into textsearch-1
Conflicts: web/viewer.js
This commit is contained in:
notmasteryet
commit
7b479c352c
19 changed files with 1525 additions and 102 deletions
204
src/core.js
204
src/core.js
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@ -306,46 +306,125 @@ var Page = (function PageClosure() {
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}
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},
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getLinks: function pageGetLinks() {
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var links = [];
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var annotations = pageGetAnnotations();
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var i, n = annotations.length;
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for (i = 0; i < n; ++i) {
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if (annotations[i].type != 'Link')
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continue;
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links.push(annotations[i]);
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}
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return links;
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},
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getAnnotations: function pageGetAnnotations() {
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var xref = this.xref;
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function getInheritableProperty(annotation, name) {
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var item = annotation;
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while (item && !item.has(name)) {
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item = xref.fetchIfRef(item.get('Parent'));
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}
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if (!item)
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return null;
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return item.get(name);
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}
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var annotations = xref.fetchIfRef(this.annotations) || [];
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var i, n = annotations.length;
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var links = [];
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var items = [];
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for (i = 0; i < n; ++i) {
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var annotation = xref.fetch(annotations[i]);
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var annotationRef = annotations[i];
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var annotation = xref.fetch(annotationRef);
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if (!isDict(annotation))
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continue;
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var subtype = annotation.get('Subtype');
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if (!isName(subtype) || subtype.name != 'Link')
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if (!isName(subtype))
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continue;
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var rect = annotation.get('Rect');
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var topLeftCorner = this.rotatePoint(rect[0], rect[1]);
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var bottomRightCorner = this.rotatePoint(rect[2], rect[3]);
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var link = {};
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link.x = Math.min(topLeftCorner.x, bottomRightCorner.x);
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link.y = Math.min(topLeftCorner.y, bottomRightCorner.y);
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link.width = Math.abs(topLeftCorner.x - bottomRightCorner.x);
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link.height = Math.abs(topLeftCorner.y - bottomRightCorner.y);
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var a = this.xref.fetchIfRef(annotation.get('A'));
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if (a) {
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switch (a.get('S').name) {
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case 'URI':
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link.url = a.get('URI');
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var item = {};
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item.type = subtype.name;
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item.x = Math.min(topLeftCorner.x, bottomRightCorner.x);
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item.y = Math.min(topLeftCorner.y, bottomRightCorner.y);
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item.width = Math.abs(topLeftCorner.x - bottomRightCorner.x);
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item.height = Math.abs(topLeftCorner.y - bottomRightCorner.y);
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switch (subtype.name) {
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case 'Link':
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var a = this.xref.fetchIfRef(annotation.get('A'));
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if (a) {
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switch (a.get('S').name) {
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case 'URI':
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item.url = a.get('URI');
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break;
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case 'GoTo':
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item.dest = a.get('D');
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break;
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default:
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TODO('other link types');
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}
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} else if (annotation.has('Dest')) {
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// simple destination link
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var dest = annotation.get('Dest');
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item.dest = isName(dest) ? dest.name : dest;
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}
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break;
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case 'Widget':
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var fieldType = getInheritableProperty(annotation, 'FT');
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if (!isName(fieldType))
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break;
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case 'GoTo':
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link.dest = a.get('D');
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break;
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default:
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TODO('other link types');
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}
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} else if (annotation.has('Dest')) {
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// simple destination link
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var dest = annotation.get('Dest');
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link.dest = isName(dest) ? dest.name : dest;
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item.fieldType = fieldType.name;
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// Building the full field name by collecting the field and
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// its ancestors 'T' properties and joining them using '.'.
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var fieldName = [];
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var namedItem = annotation, ref = annotationRef;
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while (namedItem) {
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var parentRef = namedItem.get('Parent');
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var parent = xref.fetchIfRef(parentRef);
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var name = namedItem.get('T');
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if (name)
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fieldName.unshift(stringToPDFString(name));
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else {
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// The field name is absent, that means more than one field
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// with the same name may exist. Replacing the empty name
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// with the '`' plus index in the parent's 'Kids' array.
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// This is not in the PDF spec but necessary to id the
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// the input controls.
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var kids = xref.fetchIfRef(parent.get('Kids'));
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var j, jj;
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for (j = 0, jj = kids.length; j < jj; j++) {
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if (kids[j].num == ref.num && kids[j].gen == ref.gen)
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break;
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}
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fieldName.unshift('`' + j);
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}
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namedItem = parent;
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ref = parentRef;
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}
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item.fullName = fieldName.join('.');
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var alternativeText = stringToPDFString(annotation.get('TU') || '');
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item.alternativeText = alternativeText;
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var da = getInheritableProperty(annotation, 'DA') || '';
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var m = /([\d\.]+)\sTf/.exec(da);
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if (m)
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item.fontSize = parseFloat(m[1]);
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item.textAlignment = getInheritableProperty(annotation, 'Q');
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item.flags = getInheritableProperty(annotation, 'Ff') || 0;
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break;
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case 'Text':
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var content = annotation.get('Contents');
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var title = annotation.get('T');
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item.content = stringToPDFString(content || '');
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item.title = stringToPDFString(title || '');
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item.name = annotation.get('Name').name;
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break;
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default:
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TODO('unimplemented annotation type: ' + subtype.name);
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break;
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}
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links.push(link);
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items.push(item);
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}
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return links;
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return items;
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},
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startRendering: function pageStartRendering(ctx, callback, textLayer) {
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this.ctx = ctx;
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@ -384,6 +463,7 @@ var PDFDocModel = (function PDFDocModelClosure() {
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assertWellFormed(stream.length > 0, 'stream must have data');
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this.stream = stream;
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this.setup();
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this.acroForm = this.xref.fetchIfRef(this.catalog.catDict.get('AcroForm'));
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}
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function find(stream, needle, limit, backwards) {
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@ -479,6 +559,13 @@ var PDFDocModel = (function PDFDocModelClosure() {
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this.startXRef,
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this.mainXRefEntriesOffset);
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this.catalog = new Catalog(this.xref);
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if (this.xref.trailer && this.xref.trailer.has('ID')) {
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var fileID = '';
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this.xref.trailer.get('ID')[0].split('').forEach(function(el) {
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fileID += Number(el.charCodeAt(0)).toString(16);
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});
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this.fileID = fileID;
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}
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},
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get numPages() {
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var linearization = this.linearization;
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@ -486,6 +573,22 @@ var PDFDocModel = (function PDFDocModelClosure() {
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// shadow the prototype getter
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return shadow(this, 'numPages', num);
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},
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getFingerprint: function pdfDocGetFingerprint() {
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if (this.fileID) {
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return this.fileID;
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} else {
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// If we got no fileID, then we generate one,
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// from the first 100 bytes of PDF
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var data = this.stream.bytes.subarray(0, 100);
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var hash = calculateMD5(data, 0, data.length);
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var strHash = '';
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for (var i = 0, length = hash.length; i < length; i++) {
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strHash += Number(hash[i]).toString(16);
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}
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return strHash;
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}
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},
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getPage: function pdfDocGetPage(n) {
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return this.catalog.getPage(n);
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}
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@ -512,7 +615,7 @@ var PDFDoc = (function PDFDocClosure() {
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this.data = data;
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this.stream = stream;
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this.pdf = new PDFDocModel(stream);
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this.fingerprint = this.pdf.getFingerprint();
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this.catalog = this.pdf.catalog;
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this.objs = new PDFObjects();
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@ -531,36 +634,35 @@ var PDFDoc = (function PDFDocClosure() {
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throw 'No PDFJS.workerSrc specified';
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}
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var worker;
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try {
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worker = new Worker(workerSrc);
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} catch (e) {
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// Some versions of FF can't create a worker on localhost, see:
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// https://bugzilla.mozilla.org/show_bug.cgi?id=683280
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globalScope.PDFJS.disableWorker = true;
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this.setupFakeWorker();
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var worker = new Worker(workerSrc);
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var messageHandler = new MessageHandler('main', worker);
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// Tell the worker the file it was created from.
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messageHandler.send('workerSrc', workerSrc);
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messageHandler.on('test', function pdfDocTest(supportTypedArray) {
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if (supportTypedArray) {
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this.worker = worker;
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this.setupMessageHandler(messageHandler);
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} else {
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globalScope.PDFJS.disableWorker = true;
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this.setupFakeWorker();
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}
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}.bind(this));
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var testObj = new Uint8Array(1);
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// Some versions of Opera throw a DATA_CLONE_ERR on
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// serializing the typed array.
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messageHandler.send('test', testObj);
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return;
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}
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var messageHandler = new MessageHandler('main', worker);
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// Tell the worker the file it was created from.
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messageHandler.send('workerSrc', workerSrc);
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messageHandler.on('test', function pdfDocTest(supportTypedArray) {
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if (supportTypedArray) {
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this.worker = worker;
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this.setupMessageHandler(messageHandler);
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} else {
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this.setupFakeWorker();
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}
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}.bind(this));
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var testObj = new Uint8Array(1);
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messageHandler.send('test', testObj);
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} else {
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this.setupFakeWorker();
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} catch (e) {}
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}
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// Either workers are disabled, not supported or have thrown an exception.
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// Thus, we fallback to a faked worker.
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globalScope.PDFJS.disableWorker = true;
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this.setupFakeWorker();
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}
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PDFDoc.prototype = {
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