1 files changed, 87 insertions, 15 deletions

diff --git a/ide-document-link.c b/ide-document-link.c
index 9d4803f..2328a6b 100644
--- a/ide-document-link.c
+++ b/ide-document-link.c
@@ -1,11 +1,61 @@
 #include "ted.h"
 
+void document_link_clear(Ted *ted) {
+	DocumentLinks *dl = &ted->document_links;
+	arr_foreach_ptr(dl->links, DocumentLink, l) {
+		free(l->target);
+		free(l->tooltip);
+	}
+	arr_clear(dl->links);
+	dl->requested_document = 0;
+}
+
+static bool document_link_activation_key_down(Ted *ted) {
+	return ted_is_ctrl_down(ted);
+}
+
+
+static Rect document_link_get_rect(Ted *ted, DocumentLink *link) {
+	TextBuffer *buffer = ted->active_buffer;
+	DocumentLinks *dl = &ted->document_links;
+	if (buffer_lsp_document_id(buffer) != dl->requested_document) {
+		return (Rect){0};
+	}
+	
+	vec2 a = buffer_pos_to_pixels(buffer, link->start);
+	vec2 b = buffer_pos_to_pixels(buffer, link->end);
+	if (a.y != b.y) {
+		// multi-line link. let's ignore it because it'd be tough to deal with.
+		return (Rect){0};
+	}
+	
+	if (a.x > b.x) {
+		// swap positions
+		vec2 temp = a;
+		a = b;
+		b = temp;
+	}
+	
+	float y0 = a.y;
+	float char_height = text_font_char_height(buffer_font(buffer));
+	return (Rect) {
+		.pos = {a.x, y0},
+		.size = {b.x - a.x, char_height}
+	};
+}
+
 void document_link_frame(Ted *ted) {
-	DocumentLink *document_link = &ted->document_link;
+	Settings *settings = ted_active_settings(ted);
+	if (!settings->document_links) {
+		document_link_clear(ted);
+		return;
+	}
+	DocumentLinks *dl = &ted->document_links;
 	
-	bool key_down = ted_is_ctrl_down(ted);
+	bool key_down = document_link_activation_key_down(ted);
 	if (!key_down) {
-		ted_cancel_lsp_request(ted, &document_link->last_request);
+		ted_cancel_lsp_request(ted, &dl->last_request);
+		document_link_clear(ted);
 		return;
 	}
 	
@@ -17,38 +67,60 @@ void document_link_frame(Ted *ted) {
 	if (!lsp)
 		return;
 	
-	if (!document_link->last_request.id) {
+	if (!dl->last_request.id) {
 		// send the request
 		LSPRequest request = {.type = LSP_REQUEST_DOCUMENT_LINK};
 		LSPRequestDocumentLink *lnk = &request.data.document_link;
 		lnk->document = buffer_lsp_document_id(buffer);
-		document_link->last_request = lsp_send_request(lsp, &request);
+		dl->last_request = lsp_send_request(lsp, &request);
+		dl->requested_document = lnk->document;
+	}
+	
+	arr_foreach_ptr(dl->links, DocumentLink, l) {
+		Rect r = document_link_get_rect(ted, l);
+		if (rect_contains_point(r, ted->mouse_pos)) {
+			ted->cursor = ted->cursor_hand;
+		}
 	}
 }
 
 void document_link_process_lsp_response(Ted *ted, const LSPResponse *response) {
-	DocumentLink *document_link = &ted->document_link;
+	DocumentLinks *dl = &ted->document_links;
 	if (response->request.type != LSP_REQUEST_DOCUMENT_LINK)
 		return;
-	if (!document_link->last_request.id)
+	if (!dl->last_request.id)
 		return; // request was cancelled
 	
-	bool key_down = ted_is_ctrl_down(ted);
+	bool key_down = document_link_activation_key_down(ted);
 	if (!key_down)
 		return;
 	TextBuffer *buffer = ted->active_buffer;
 	if (!buffer)
 		return;
-	if (buffer_lsp_document_id(buffer) != response->request.data.document_link.document)
+	if (buffer_lsp_document_id(buffer) != dl->requested_document)
 		return; // request was for a different document
 	
 	const LSPResponseDocumentLink *response_data = &response->data.document_link;
 	arr_foreach_ptr(response_data->links, const LSPDocumentLink, link) {
-		BufferPos start = buffer_pos_from_lsp(buffer, link->range.start);
-		BufferPos end = buffer_pos_from_lsp(buffer, link->range.end);
-		printf("%d:%d — %d:%d\t: %s\n",
-			start.line, start.index, end.line, end.index,
-			lsp_response_string(response, link->target));
-		
+		DocumentLink *l = arr_addp(dl->links);
+		l->start = buffer_pos_from_lsp(buffer, link->range.start);
+		l->end = buffer_pos_from_lsp(buffer, link->range.end);
+		l->target = str_dup(lsp_response_string(response, link->target));
+		const char *tooltip = lsp_response_string(response, link->tooltip);
+		l->tooltip = *tooltip ? str_dup(tooltip) : NULL;
+	}
+}
+
+const char *document_link_at_buffer_pos(Ted *ted, BufferPos pos) {
+	DocumentLinks *dl = &ted->document_links;
+	TextBuffer *buffer = ted->active_buffer;
+	if (buffer_lsp_document_id(buffer) != dl->requested_document) {
+		return NULL;
+	}
+
+	arr_foreach_ptr(dl->links, DocumentLink, l) {
+		if (buffer_pos_cmp(pos, l->start) >= 0 && buffer_pos_cmp(pos, l->end) < 0)
+			return l->target;
 	}
+	return NULL;
 }