Add find shortcut in browser.

src/Window.zig

@@ -14,6 +14,7 @@ const gobject = @import("gobject");
 const gtk = @import("gtk");
 const vt = @import("ghostty-vt");
 
+const Browser = @import("Browser.zig");
 const Layouts = @import("Layouts.zig");
 const OpenLayoutDialog = @import("OpenLayoutDialog.zig");
 const Pane = @import("Pane.zig");
@@ -1348,6 +1349,12 @@ fn focusedTerminal(self: *Window) ?*Terminal {
     return tab.view.focusedTerminal();
 }
 
+/// The focused web view of the visible tab, or null when a terminal has focus.
+fn focusedBrowser(self: *Window) ?*Browser {
+    const tab = self.activeTab() orelse return null;
+    return tab.view.focusedBrowser();
+}
+
 /// Split the visible tab's focused pane, adding a pane of the given kind.
 fn addPane(self: *Window, kind: View.Kind) void {
     const tab = self.activeTab() orelse return;
@@ -1442,10 +1449,21 @@ fn onShortcut(
         }
     }
 
-    // Ctrl+PageUp/PageDown cycles tabs, matching most tabbed terminals.
-    // Ctrl+comma opens settings, which is the convention nearly everywhere.
+    // Chords without Shift, which have to be the ones a terminal doesn't want
+    // for itself. Ctrl+PageUp/PageDown cycles tabs, matching most tabbed
+    // terminals; Ctrl+comma opens settings, which is the convention nearly
+    // everywhere; Ctrl+F is claimed only over a web pane.
     if (ctrl and !shift) {
         switch (keyval) {
+            gdk.KEY_F, gdk.KEY_f => {
+                // Find-in-page, on the chord every browser uses. In a
+                // terminal Ctrl+F is an ordinary control character that the
+                // program running there is waiting for, so this only claims
+                // the key when a web pane has focus.
+                const browser = self.focusedBrowser() orelse return 0;
+                browser.openFind();
+                return 1;
+            },
             gdk.KEY_comma => {
                 self.openSettings();
                 return 1;