Commit 1b0d1da6 authored by Sebastian Ramacher's avatar Sebastian Ramacher
Browse files

create index of PDF documents

parent 7d73b15e
......@@ -298,3 +298,28 @@ zathura_page_render(zathura_page_t* page)
return page->document->functions.page_render(page);
}
zathura_index_element_t*
zathura_index_element_new(const char* title)
{
if (!title)
return NULL;
zathura_index_element_t* res = g_malloc0(sizeof(zathura_index_element_t));
if (!res)
return NULL;
res->title = g_strdup(title);
return res;
}
void
zathura_index_element_free(zathura_index_element_t* index)
{
if (!index)
return;
g_free(index->title);
if (index->type == ZATHURA_LINK_EXTERNAL)
g_free(index->target.uri);
g_free(index);
}
......@@ -50,6 +50,17 @@ typedef struct zathura_link_s
} target;
} zathura_link_t;
typedef struct zathura_index_element_s
{
char* title;
zathura_link_type_t type;
union
{
unsigned int page_number;
char* uri;
} target;
} zathura_index_element_t;
typedef enum zathura_form_type_e
{
ZATHURA_FORM_CHECKBOX,
......@@ -113,4 +124,7 @@ zathura_list_t* zathura_page_form_fields_get(zathura_page_t* page);
bool zathura_page_form_fields_free(zathura_list_t* list);
cairo_surface_t* zathura_page_render(zathura_page_t* page);
zathura_index_element_t* zathura_index_element_new(const char* title);
void zathura_index_element_free(zathura_index_element_t* index);
#endif // DOCUMENT_H
......@@ -83,10 +83,76 @@ pdf_document_free(zathura_document_t* document)
return true;
}
static void
build_index(pdf_document_t* pdf, girara_tree_node_t* root, PopplerIndexIter* iter)
{
if (!root || !iter)
return;
do
{
PopplerAction* action = poppler_index_iter_get_action(iter);
if (!action)
continue;
gchar* markup = g_markup_escape_text(action->any.title, -1);
zathura_index_element_t* indexelement = zathura_index_element_new(markup);
if (action->type == POPPLER_ACTION_URI)
{
indexelement->type = ZATHURA_LINK_EXTERNAL;
indexelement->target.uri = g_strdup(action->uri.uri);
}
else if (action->type == POPPLER_ACTION_GOTO_DEST)
{
indexelement->type = ZATHURA_LINK_TO_PAGE;
if (action->goto_dest.dest->type == POPPLER_DEST_NAMED)
{
PopplerDest* dest = poppler_document_find_dest(pdf->document, action->goto_dest.dest->named_dest);
if (dest)
{
indexelement->target.page_number = dest->page_num - 1;
poppler_dest_free(dest);
}
}
else
indexelement->target.page_number = action->goto_dest.dest->page_num - 1;
}
else
{
poppler_action_free(action);
zathura_index_element_free(indexelement);
continue;
}
poppler_action_free(action);
girara_tree_node_t* node = girara_node_append_data(root, indexelement);
PopplerIndexIter* child = poppler_index_iter_get_child(iter);
if (child)
build_index(pdf, node, child);
poppler_index_iter_free(child);
} while (poppler_index_iter_next(iter));
}
girara_tree_node_t*
pdf_document_index_generate(zathura_document_t* document)
{
return NULL;
if (!document || !document->data) {
return NULL;
}
pdf_document_t* pdf_document = (pdf_document_t*) document->data;
PopplerIndexIter* iter = poppler_index_iter_new(pdf_document->document);
if (!iter) {
// XXX: error message?
return NULL;
}
girara_tree_node_t* root = girara_node_new(zathura_index_element_new("ROOT"));
girara_node_set_free_function(root, (girara_free_function_t)zathura_index_element_free);
build_index(pdf_document, root, iter);
poppler_index_iter_free(iter);
return root;
}
bool
......
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