Clean up link destination handling.

All link destinations should be URIs, and a document specific function
can be called to resolve them to actual page numbers.

Outlines have cached page numbers as well as string URIs.

1 files changed, 9 insertions, 0 deletions

diff --git a/include/mupdf/fitz/document.h b/include/mupdf/fitz/document.h
index 7f3c8ece..d8123a00 100644
--- a/include/mupdf/fitz/document.h
+++ b/include/mupdf/fitz/document.h
@@ -32,6 +32,7 @@ typedef int (fz_document_authenticate_password_fn)(fz_context *ctx, fz_document
 typedef int (fz_document_has_permission_fn)(fz_context *ctx, fz_document *doc, fz_permission permission);
 typedef fz_outline *(fz_document_load_outline_fn)(fz_context *ctx, fz_document *doc);
 typedef void (fz_document_layout_fn)(fz_context *ctx, fz_document *doc, float w, float h, float em);
+typedef int (fz_document_resolve_link_fn)(fz_context *ctx, fz_document *doc, const char *uri);
 typedef int (fz_document_count_pages_fn)(fz_context *ctx, fz_document *doc);
 typedef fz_page *(fz_document_load_page_fn)(fz_context *ctx, fz_document *doc, int number);
 typedef int (fz_document_lookup_metadata_fn)(fz_context *ctx, fz_document *doc, const char *key, char *buf, int size);
@@ -87,6 +88,7 @@ struct fz_document_s
 	fz_document_has_permission_fn *has_permission;
 	fz_document_load_outline_fn *load_outline;
 	fz_document_layout_fn *layout;
+	fz_document_resolve_link_fn *resolve_link;
 	fz_document_count_pages_fn *count_pages;
 	fz_document_load_page_fn *load_page;
 	fz_document_lookup_metadata_fn *lookup_metadata;
@@ -210,6 +212,13 @@ void fz_layout_document(fz_context *ctx, fz_document *doc, float w, float h, flo
 int fz_count_pages(fz_context *ctx, fz_document *doc);
 
 /*
+	fz_resolve_link: Resolve an internal link to a page number.
+
+	Returns -1 if the URI cannot be resolved.
+*/
+int fz_resolve_link(fz_context *ctx, fz_document *doc, const char *uri);
+
+/*
 	fz_load_page: Load a page.
 
 	After fz_load_page is it possible to retrieve the size of the