Sakurai/pdf.js
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Fix table of contents.

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This commit is contained in:
Brendan Dahl 2012-04-04 15:29:50 -07:00
parent 82a95d8bde
commit cee2f73ca9
1 changed files with 13 additions and 17 deletions
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30
src/obj.js
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@ -153,17 +153,16 @@ var Catalog = (function CatalogClosure() {
var obj = this.catDict.get('Outlines'); var obj = this.catDict.get('Outlines');
var root = { items: [] }; var root = { items: [] };
if (isDict(obj)) { if (isDict(obj)) {
var ref = obj.getRaw('First'); obj = obj.getRaw('First');
obj = obj.get('First');
var processed = new RefSet(); var processed = new RefSet();
if (isRef(ref)) { if (isRef(obj)) {
var queue = [{obj: obj, parent: root}]; var queue = [{obj: obj, parent: root}];
// to avoid recursion keeping track of the items // to avoid recursion keeping track of the items
// in the processed dictionary // in the processed dictionary
processed.put(ref); processed.put(obj);
while (queue.length > 0) { while (queue.length > 0) {
var i = queue.shift(); var i = queue.shift();
var outlineDict = i.obj; var outlineDict = xref.fetchIfRef(i.obj);
if (outlineDict === null) if (outlineDict === null)
continue; continue;
if (!outlineDict.has('Title')) if (!outlineDict.has('Title'))
@ -187,17 +186,15 @@ var Catalog = (function CatalogClosure() {
items: [] items: []
}; };
i.parent.items.push(outlineItem); i.parent.items.push(outlineItem);
ref = outlineDict.getRaw('First'); obj = outlineDict.getRaw('First');
if (isRef(ref) && !processed.has(ref)) { if (isRef(obj) && !processed.has(obj)) {
obj = outlineDict.get('First');
queue.push({obj: obj, parent: outlineItem}); queue.push({obj: obj, parent: outlineItem});
processed.put(ref); processed.put(obj);
} }
ref = outlineDict.getRaw('Next'); obj = outlineDict.getRaw('Next');
if (isRef(ref) && !processed.has(ref)) { if (isRef(obj) && !processed.has(obj)) {
obj = outlineDict.get('Next');
queue.push({obj: obj, parent: i.parent}); queue.push({obj: obj, parent: i.parent});
processed.put(ref); processed.put(obj);
} }
} }
} }
@ -236,8 +233,7 @@ var Catalog = (function CatalogClosure() {
} }
}, },
get destinations() { get destinations() {
function fetchDestination(xref, ref) { function fetchDestination(dest) {
var dest = ref;
return isDict(dest) ? dest.get('D') : dest; return isDict(dest) ? dest.get('D') : dest;
} }
@ -254,7 +250,7 @@ var Catalog = (function CatalogClosure() {
obj = nameDictionaryRef; obj = nameDictionaryRef;
obj.forEach(function catalogForEach(key, value) { obj.forEach(function catalogForEach(key, value) {
if (!value) return; if (!value) return;
dests[key] = fetchDestination(xref, value); dests[key] = fetchDestination(value);
}); });
} }
if (nameTreeRef) { if (nameTreeRef) {
@ -278,7 +274,7 @@ var Catalog = (function CatalogClosure() {
} }
var names = obj.get('Names'); var names = obj.get('Names');
for (i = 0, n = names.length; i < n; i += 2) { for (i = 0, n = names.length; i < n; i += 2) {
dests[names[i]] = fetchDestination(xref, names[i + 1]); dests[names[i]] = fetchDestination(xref.fetchIfRef(names[i + 1]));
} }
} }
} }