diff options
Diffstat (limited to 'source/pdf/pdf-annot.c')
| -rw-r--r-- | source/pdf/pdf-annot.c | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/source/pdf/pdf-annot.c b/source/pdf/pdf-annot.c index 539c4882..b90b5e86 100644 --- a/source/pdf/pdf-annot.c +++ b/source/pdf/pdf-annot.c @@ -169,7 +169,7 @@ pdf_parse_file_spec(fz_context *ctx, pdf_document *doc, pdf_obj *file_spec, pdf_ } char * -pdf_parse_link_action(fz_context *ctx, pdf_document *doc, pdf_obj *action) +pdf_parse_link_action(fz_context *ctx, pdf_document *doc, pdf_obj *action, int pagenum) { pdf_obj *obj, *dest, *file_spec; @@ -208,12 +208,35 @@ pdf_parse_link_action(fz_context *ctx, pdf_document *doc, pdf_obj *action) file_spec = pdf_dict_get(ctx, action, PDF_NAME_F); return pdf_parse_file_spec(ctx, doc, file_spec, dest); } + else if (pdf_name_eq(ctx, PDF_NAME_Named, obj)) + { + dest = pdf_dict_get(ctx, action, PDF_NAME_N); + + if (pdf_name_eq(ctx, PDF_NAME_FirstPage, dest)) + pagenum = 0; + else if (pdf_name_eq(ctx, PDF_NAME_LastPage, dest)) + pagenum = pdf_count_pages(ctx, doc) - 1; + else if (pdf_name_eq(ctx, PDF_NAME_PrevPage, dest) && pagenum >= 0) + { + if (pagenum > 0) + pagenum--; + } + else if (pdf_name_eq(ctx, PDF_NAME_NextPage, dest) && pagenum >= 0) + { + if (pagenum < pdf_count_pages(ctx, doc) - 1) + pagenum++; + } + else + return NULL; + + return fz_asprintf(ctx, "#%d", pagenum + 1); + } return NULL; } static fz_link * -pdf_load_link(fz_context *ctx, pdf_document *doc, pdf_obj *dict, const fz_matrix *page_ctm) +pdf_load_link(fz_context *ctx, pdf_document *doc, pdf_obj *dict, int pagenum, const fz_matrix *page_ctm) { pdf_obj *action; pdf_obj *obj; @@ -241,7 +264,7 @@ pdf_load_link(fz_context *ctx, pdf_document *doc, pdf_obj *dict, const fz_matrix /* fall back to additional action button's down/up action */ if (!action) action = pdf_dict_geta(ctx, pdf_dict_get(ctx, dict, PDF_NAME_AA), PDF_NAME_U, PDF_NAME_D); - uri = pdf_parse_link_action(ctx, doc, action); + uri = pdf_parse_link_action(ctx, doc, action, pagenum); } if (!uri) @@ -253,7 +276,7 @@ pdf_load_link(fz_context *ctx, pdf_document *doc, pdf_obj *dict, const fz_matrix } fz_link * -pdf_load_link_annots(fz_context *ctx, pdf_document *doc, pdf_obj *annots, const fz_matrix *page_ctm) +pdf_load_link_annots(fz_context *ctx, pdf_document *doc, pdf_obj *annots, int pagenum, const fz_matrix *page_ctm) { fz_link *link, *head, *tail; pdf_obj *obj; @@ -269,7 +292,7 @@ pdf_load_link_annots(fz_context *ctx, pdf_document *doc, pdf_obj *annots, const fz_try(ctx) { obj = pdf_array_get(ctx, annots, i); - link = pdf_load_link(ctx, doc, obj, page_ctm); + link = pdf_load_link(ctx, doc, obj, pagenum, page_ctm); } fz_catch(ctx) { |