girara_tree_node_t*
cb_document_index_generate(zathura_document_t* document,
cb_document_t* cb_document, zathura_error_t* error)
{
if (document == NULL || cb_document == NULL) {
if (error != NULL) {
*error = ZATHURA_ERROR_INVALID_ARGUMENTS;
}
return NULL;
}
girara_tree_node_t* root = girara_node_new(zathura_index_element_new("ROOT"));
unsigned int page_number = 0;
GIRARA_LIST_FOREACH(cb_document->pages, cb_document_page_meta_t*, iter, page)
{
gchar* markup = g_markup_escape_text(page->file, -1);
zathura_index_element_t* index_element = zathura_index_element_new(markup);
g_free(markup);
if (index_element != NULL) {
zathura_rectangle_t rect = { 0, 0, 0, 0 };
zathura_link_target_t target = { ZATHURA_LINK_DESTINATION_XYZ, NULL,
page_number, -1, -1, -1, -1, 0 };
index_element->link = zathura_link_new(ZATHURA_LINK_GOTO_DEST, rect,
target);
girara_node_append_data(root, index_element);
}
++page_number;
}
GIRARA_LIST_FOREACH_END(cb_document->pages, cb_document_page_meta_t*, iter, page);
return root;
}
girara_tree_node_t*
pdf_document_index_generate(zathura_document_t* document, void* data, zathura_error_t* error)
{
mupdf_document_t* mupdf_document = data;
if (document == NULL || mupdf_document == NULL) {
if (error != NULL) {
*error = ZATHURA_ERROR_INVALID_ARGUMENTS;
}
return NULL;
}
/* get outline */
fz_outline* outline = fz_load_outline(mupdf_document->ctx, mupdf_document->document);
if (outline == NULL) {
if (error != NULL) {
*error = ZATHURA_ERROR_UNKNOWN;
}
return NULL;
}
/* generate index */
girara_tree_node_t* root = girara_node_new(zathura_index_element_new("ROOT"));
build_index(mupdf_document->ctx, mupdf_document->document, outline, root);
/* free outline */
fz_drop_outline(mupdf_document->ctx, outline);
return root;
}
girara_tree_node_t*
djvu_document_index_generate(zathura_document_t* document, djvu_document_t*
djvu_document, zathura_error_t* error)
{
if (document == NULL || djvu_document == NULL) {
if (error != NULL) {
*error = ZATHURA_ERROR_INVALID_ARGUMENTS;
}
return NULL;
}
miniexp_t outline = miniexp_dummy;
while ((outline = ddjvu_document_get_outline(djvu_document->document)) ==
miniexp_dummy) {
handle_messages(djvu_document, true);
}
if (outline == miniexp_dummy) {
return NULL;
}
if (miniexp_consp(outline) == 0 || miniexp_car(outline) != miniexp_symbol("bookmarks")) {
ddjvu_miniexp_release(djvu_document->document, outline);
return NULL;
}
girara_tree_node_t* root = girara_node_new(zathura_index_element_new("ROOT"));
build_index(djvu_document, miniexp_cdr(outline), root);
ddjvu_miniexp_release(djvu_document->document, outline);
return root;
}
static void
build_index(fz_context* ctx, fz_document* document, fz_outline* outline, girara_tree_node_t* root)
{
if (outline == NULL || root == NULL) {
return;
}
while (outline != NULL) {
zathura_index_element_t* index_element = zathura_index_element_new(outline->title);
zathura_link_target_t target = { ZATHURA_LINK_DESTINATION_UNKNOWN, NULL, 0, -1, -1, -1, -1, 0 };
zathura_link_type_t type = ZATHURA_LINK_INVALID;
zathura_rectangle_t rect = { .x1 = 0, .y1 = 0, .x2 = 0, .y2 = 0 };
if (outline->uri == NULL) {
type = ZATHURA_LINK_NONE;
} else if (fz_is_external_link(ctx, outline->uri) == 1) {
if (strstr(outline->uri, "file://") == outline->uri) {
type = ZATHURA_LINK_GOTO_REMOTE;
target.value = outline->uri;
} else {
type = ZATHURA_LINK_URI;
target.value = outline->uri;
}
} else {
float x = 0;
float y = 0;
type = ZATHURA_LINK_GOTO_DEST;
target.destination_type = ZATHURA_LINK_DESTINATION_XYZ;
target.page_number = fz_resolve_link(ctx, document, outline->uri, &x, &y);
target.left = x;
target.top = y;
target.zoom = 0.0;
}
index_element->link = zathura_link_new(type, rect, target);
if (index_element->link == NULL) {
outline = outline->next;
continue;
}
girara_tree_node_t* node = girara_node_append_data(root, index_element);
if (outline->down != NULL) {
build_index(ctx, document, outline->down, node);
}
outline = outline->next;
}
}
static void
build_index(djvu_document_t *djvu_document, miniexp_t expression, girara_tree_node_t* root)
{
if (expression == miniexp_nil || root == NULL) {
return;
}
int fileno = ddjvu_document_get_filenum(djvu_document->document);
int curfile = 0;
while (miniexp_consp(expression) != 0) {
miniexp_t inner = miniexp_car(expression);
if (miniexp_consp(inner)
&& miniexp_consp(miniexp_cdr(inner))
&& miniexp_stringp(miniexp_car(inner))
&& miniexp_stringp(miniexp_car(inner))
) {
const char* name = miniexp_to_str(miniexp_car(inner));
const char* link = miniexp_to_str(miniexp_cadr(inner));
/* TODO: handle other links? */
if (link == NULL || link[0] != '#') {
expression = miniexp_cdr(expression);
continue;
}
zathura_link_type_t type = ZATHURA_LINK_GOTO_DEST;
zathura_rectangle_t rect;
zathura_link_target_t target = { 0 };
target.destination_type = ZATHURA_LINK_DESTINATION_XYZ;
/* Check if link+1 contains a number */
bool number = true;
const size_t linklen = strlen(link);
for (unsigned int k = 1; k < linklen; k++) {
if (!isdigit(link[k])) {
number = false;
break;
}
}
/* if link starts with a number assume it is a number */
if (number == true) {
target.page_number = atoi(link + 1) - 1;
} else {
/* otherwise assume it is an id for a page */
ddjvu_fileinfo_t info;
int f, i;
for (i=0; i < fileno; i++) {
f = (curfile + i) % fileno;
ddjvu_document_get_fileinfo(djvu_document->document, f, &info);
if (info.id != NULL && !strcmp(link+1, info.id)) {
break;
}
}
/* got a page */
if (i < fileno && info.pageno >= 0) {
curfile = (f+1) % fileno;
target.page_number = info.pageno;
} else {
/* give up */
expression = miniexp_cdr(expression);
continue;
}
}
zathura_index_element_t* index_element = zathura_index_element_new(name);
if (index_element == NULL) {
continue;
}
index_element->link = zathura_link_new(type, rect, target);
if (index_element->link == NULL) {
zathura_index_element_free(index_element);
continue;
}
girara_tree_node_t* node = girara_node_append_data(root, index_element);
/* search recursive */
build_index(djvu_document, miniexp_cddr(inner), node);
}
expression = miniexp_cdr(expression);
}
}
