Add scrollback hotkeys

This offers a few additional hotkeys that can be used in combination
with scrollback. None of these are used by default yet.

This implements the following bindings:
 - ScrollPageUp: Scroll exactly one screen height up
 - ScrollPageDown: Scroll exactly one screen height down
 - ScrollToTop: Scroll as far up as possible
 - ScrollToBottom: Scroll as far down as possible

This fixes #1151.

1 files changed, 16 insertions, 0 deletions

diff --git a/src/term/mod.rs b/src/term/mod.rs
index 8d378247..8f9fee1b 100644
--- a/src/term/mod.rs
+++ b/src/term/mod.rs
@@ -830,6 +830,22 @@ impl Term {
 
     pub fn reset_scroll(&mut self) {
         self.grid.reset_scroll_display();
+        self.dirty = true;
+    }
+
+    pub fn scroll_to_top(&mut self) {
+        self.grid.scroll_to_top();
+        self.dirty = true;
+    }
+
+    pub fn scroll_page_up(&mut self) {
+        self.grid.scroll_page_up();
+        self.dirty = true;
+    }
+
+    pub fn scroll_page_down(&mut self) {
+        self.grid.scroll_page_down();
+        self.dirty = true;
     }
 
     #[inline]