[vte/wip/fedora-0-64: 5/10] Test the scroll-speed property

[Christian Persch <chpe src gnome org>]

commit 902500b29a9469ea5d6ebd8b5a29a3a0a15f517f
Author: Debarshi Ray <debarshir gnome org>
Date:   Mon Mar 22 19:02:31 2021 +0100

    Test the scroll-speed property
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1103380

 bindings/vala/app.vala | 4 ++++
 src/app/app.cc         | 4 ++++
 2 files changed, 8 insertions(+)
---
diff --git a/bindings/vala/app.vala b/bindings/vala/app.vala
index 025f971b..51b5d641 100644
--- a/bindings/vala/app.vala
+++ b/bindings/vala/app.vala
@@ -335,6 +335,7 @@ class Window : Gtk.ApplicationWindow
     terminal.set_rewrap_on_resize(!Options.no_rewrap);
     terminal.set_scroll_on_output(false);
     terminal.set_scroll_on_keystroke(true);
+    terminal.set_scroll_speed(Options.scroll_speed);
     terminal.set_scrollback_lines(Options.scrollback_lines);
 
     /* Style */
@@ -857,6 +858,7 @@ class App : Gtk.Application
     public static bool object_notifications = false;
     public static string? output_filename = null;
     public static bool reverse = false;
+    public static uint scroll_speed = 0;
     public static int scrollback_lines = 512;
     public static int transparency_percent = 0;
     public static bool version = false;
@@ -1050,6 +1052,8 @@ class App : Gtk.Application
         "Save terminal contents to file at exit", null },
       { "reverse", 0, 0, OptionArg.NONE, ref reverse,
         "Reverse foreground/background colors", null },
+      { "scroll-speed", 0, 0, OptionArg.INT, ref scroll_speed,
+        "Specify the scroll speed", null },
       { "scrollback-lines", 'n', 0, OptionArg.INT, ref scrollback_lines,
         "Specify the number of scrollback-lines", null },
       { "transparent", 'T', 0, OptionArg.INT, ref transparency_percent,
diff --git a/src/app/app.cc b/src/app/app.cc
index 73810251..90421730 100644
--- a/src/app/app.cc
+++ b/src/app/app.cc
@@ -116,6 +116,7 @@ public:
         int verbosity{0};
         double cell_height_scale{1.0};
         double cell_width_scale{1.0};
+        unsigned int scroll_speed{0};
         VteCursorBlinkMode cursor_blink_mode{VTE_CURSOR_BLINK_SYSTEM};
         VteCursorShape cursor_shape{VTE_CURSOR_SHAPE_BLOCK};
         VteTextBlinkMode text_blink_mode{VTE_TEXT_BLINK_ALWAYS};
@@ -590,6 +591,8 @@ public:
                           "Reverse foreground/background colors", nullptr },
                         { "require-systemd-scope", 0, 0, G_OPTION_ARG_NONE, &require_systemd_scope,
                           "Require use of a systemd user scope", nullptr },
+                        { "scroll-speed", 0, 0, G_OPTION_ARG_INT, &scroll_speed,
+                          "Specify the scroll speed", nullptr },
                         { "scrollback-lines", 'n', 0, G_OPTION_ARG_INT, &scrollback_lines,
                           "Specify the number of scrollback-lines (-1 for infinite)", nullptr },
                         { "transparent", 'T', 0, G_OPTION_ARG_INT, &transparency_percent,
@@ -2157,6 +2160,7 @@ vteapp_window_constructed(GObject *object)
         vte_terminal_set_rewrap_on_resize(window->terminal, !options.no_rewrap);
         vte_terminal_set_scroll_on_output(window->terminal, false);
         vte_terminal_set_scroll_on_keystroke(window->terminal, true);
+        vte_terminal_set_scroll_speed(window->terminal, options.scroll_speed);
         vte_terminal_set_scrollback_lines(window->terminal, options.scrollback_lines);
         vte_terminal_set_text_blink_mode(window->terminal, options.text_blink_mode);