document highlights!

1 files changed, 33 insertions, 5 deletions

diff --git a/ide-highlights.c b/ide-highlights.c
index 4246c66..239f4ec 100644
--- a/ide-highlights.c
+++ b/ide-highlights.c
@@ -1,16 +1,29 @@
-void highlights_send_request(Ted *ted, TextBuffer *buffer) {
+static void highlights_clear(Highlights *hls) {
+	arr_clear(hls->highlights);
+}
+
+void highlights_send_request(Ted *ted) {
+	TextBuffer *buffer = ted->active_buffer;
 	Highlights *hls = &ted->highlights;
-	if (!buffer) return;
+	if (!buffer) {
+		highlights_clear(hls);
+		return;
+	}
 	LSP *lsp = buffer_lsp(buffer);
-	if (!lsp) return;
+	if (!lsp) {
+		highlights_clear(hls);
+		return;
+	}
 	LSPDocumentPosition pos = buffer_cursor_pos_as_lsp_document_position(buffer);
 	LSPRequest request = {.type = LSP_REQUEST_HIGHLIGHT};
 	request.data.highlight.position = pos;
 	hls->last_request_id = lsp_send_request(lsp, &request);
+	hls->last_request_lsp = lsp->id;
+	hls->requested_position = pos;
 }
 
 void highlights_close(Ted *ted) {
-	arr_clear(ted->highlights.highlights);
+	highlights_clear(&ted->highlights);
 }
 
 void highlights_process_lsp_response(Ted *ted, LSPResponse *response) {
@@ -28,5 +41,20 @@ void highlights_process_lsp_response(Ted *ted, LSPResponse *response) {
 
 void highlights_frame(Ted *ted) {
 	Highlights *hls = &ted->highlights;
-		
+	TextBuffer *buffer = ted->active_buffer;
+	if (!buffer) {
+		highlights_clear(hls);
+		return;
+	}
+	LSPDocumentPosition pos = buffer_cursor_pos_as_lsp_document_position(buffer);
+	if (!lsp_document_position_eq(pos, hls->requested_position)) {
+		// cursor moved or something. let's resend the request.
+		highlights_clear(hls);
+		highlights_send_request(ted);
+	}
+	
+	arr_foreach_ptr(hls->highlights, LSPHighlight, hl) {
+		ted_highlight_lsp_range(ted, buffer, hl->range);
+	}
+	gl_geometry_draw();
 }