From f5fce953308e544d3ded4f3052dde8bc3157571f Mon Sep 17 00:00:00 2001
From: Dave Davenport <DaveDavenport@users.noreply.github.com>
Date: Wed, 20 Apr 2022 23:24:52 +0200
Subject: [PATCH] [#1079]:  Option to hide listview elements when not filtered
 (#1622)

* [listview] Optional don't show elements when not filtered (#1079)

* [Listview] Fix auto-complete error.
---
 include/widgets/listview.h |  7 +++++++
 source/view.c              |  3 +++
 source/widgets/listview.c  | 15 +++++++++++++++
 3 files changed, 25 insertions(+)

diff --git a/include/widgets/listview.h b/include/widgets/listview.h
index 8653f05e..3a10436e 100644
--- a/include/widgets/listview.h
+++ b/include/widgets/listview.h
@@ -267,6 +267,13 @@ void listview_toggle_ellipsizing(listview *lv);
  */
 
 void listview_set_ellipsize_start(listview *lv);
+
+/**
+ * @param lv Handler to the listview object.
+ * @param filtered boolean indicating if list is filtered.
+ *
+ */
+void listview_set_filtered ( listview *lv, gboolean filtered );
 /** @} */
 
 #endif // ROFI_LISTVIEW_H
diff --git a/source/view.c b/source/view.c
index 6aa9504f..b1e267e8 100644
--- a/source/view.c
+++ b/source/view.c
@@ -1134,6 +1134,8 @@ static gboolean rofi_view_refilter_real(RofiViewState *state) {
   }
   TICK_N("Filter tokenize");
   if (state->text && strlen(state->text->text) > 0) {
+
+    listview_set_filtered(state->list_view, TRUE);
     unsigned int j = 0;
     gchar *pattern = mode_preprocess_input(state->sw, state->text->text);
     glong plen = pattern ? g_utf8_strlen(pattern, -1) : 0;
@@ -1199,6 +1201,7 @@ static gboolean rofi_view_refilter_real(RofiViewState *state) {
     state->filtered_lines = j;
     g_free(pattern);
   } else {
+    listview_set_filtered(state->list_view, FALSE);
     for (unsigned int i = 0; i < state->num_lines; i++) {
       state->line_map[i] = i;
     }
diff --git a/source/widgets/listview.c b/source/widgets/listview.c
index 7e07341c..ef57972a 100644
--- a/source/widgets/listview.c
+++ b/source/widgets/listview.c
@@ -98,6 +98,9 @@ struct _listview {
   unsigned int dynamic;
   unsigned int eh;
   unsigned int reverse;
+  gboolean require_input;
+  gboolean filtered;
+
   gboolean cycle;
   gboolean multi_select;
 
@@ -559,6 +562,9 @@ void listview_set_num_elements(listview *lv, unsigned int rows) {
   }
   TICK_N("listview_set_num_elements");
   lv->req_elements = rows;
+  if ( lv->require_input && !lv->filtered ) {
+    lv->req_elements = 0;
+  }
   listview_set_selected(lv, lv->selected);
   TICK_N("Set selected");
   listview_recompute_elements(lv);
@@ -748,6 +754,8 @@ listview *listview_create(widget *parent, const char *name,
   lv->fixed_columns =
       rofi_theme_get_boolean(WIDGET(lv), "fixed-columns", FALSE);
 
+  lv->require_input =
+      rofi_theme_get_boolean(WIDGET(lv), "require-input", FALSE);
   lv->type = rofi_theme_get_orientation(WIDGET(lv), "layout",
                                         ROFI_ORIENTATION_VERTICAL);
   if (lv->type == LISTVIEW) {
@@ -1081,3 +1089,10 @@ void listview_toggle_ellipsizing(listview *lv) {
     }
   }
 }
+
+void listview_set_filtered ( listview *lv, gboolean filtered )
+{
+  if ( lv ) {
+    lv->filtered = filtered;
+  }
+}