static void do_links(fz_link *link, int xofs, int yofs)
{
fz_rect r;
float x, y;
x = ui.x;
y = ui.y;
xofs -= page_tex.x;
yofs -= page_tex.y;
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
while (link)
{
r = link->rect;
fz_transform_rect(&r, &page_ctm);
if (x >= xofs + r.x0 && x < xofs + r.x1 && y >= yofs + r.y0 && y < yofs + r.y1)
{
ui.hot = link;
if (!ui.active && ui.down)
ui.active = link;
}
if (ui.hot == link || showlinks)
{
if (ui.active == link && ui.hot == link)
glColor4f(0, 0, 1, 0.4f);
else if (ui.hot == link)
glColor4f(0, 0, 1, 0.2f);
else
glColor4f(0, 0, 1, 0.1f);
glRectf(xofs + r.x0, yofs + r.y0, xofs + r.x1, yofs + r.y1);
}
if (ui.active == link && !ui.down)
{
if (ui.hot == link)
{
if (fz_is_external_link(ctx, link->uri))
open_browser(link->uri);
else
{
jump_to_page(fz_resolve_link(ctx, doc, link->uri, NULL, NULL));
ui_needs_update = 1;
}
}
}
link = link->next;
}
glDisable(GL_BLEND);
}
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;
}
}
char *
pdf_parse_link_action(fz_context *ctx, pdf_document *doc, pdf_obj *action, int pagenum)
{
pdf_obj *obj, *dest, *file_spec;
if (!action)
return NULL;
obj = pdf_dict_get(ctx, action, PDF_NAME_S);
if (pdf_name_eq(ctx, PDF_NAME_GoTo, obj))
{
dest = pdf_dict_get(ctx, action, PDF_NAME_D);
return pdf_parse_link_dest(ctx, doc, dest);
}
else if (pdf_name_eq(ctx, PDF_NAME_URI, obj))
{
/* URI entries are ASCII strings */
const char *uri = pdf_to_str_buf(ctx, pdf_dict_get(ctx, action, PDF_NAME_URI));
if (!fz_is_external_link(ctx, uri))
{
pdf_obj *uri_base_obj = pdf_dict_getp(ctx, pdf_trailer(ctx, doc), "Root/URI/Base");
const char *uri_base = uri_base_obj ? pdf_to_str_buf(ctx, uri_base_obj) : "file://";
char *new_uri = fz_malloc(ctx, strlen(uri_base) + strlen(uri) + 1);
strcpy(new_uri, uri_base);
strcat(new_uri, uri);
return new_uri;
}
return fz_strdup(ctx, uri);
}
else if (pdf_name_eq(ctx, PDF_NAME_Launch, obj))
{
file_spec = pdf_dict_get(ctx, action, PDF_NAME_F);
return pdf_parse_file_spec(ctx, doc, file_spec, NULL);
}
else if (pdf_name_eq(ctx, PDF_NAME_GoToR, obj))
{
dest = pdf_dict_get(ctx, action, PDF_NAME_D);
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;
}
