From 77e325abbb4bc581c1dcc358ac288411b49f9d7a Mon Sep 17 00:00:00 2001
From: turnipy <mentossss@gmail.com>
Date: Mon, 6 Apr 2026 12:18:46 +1000
Subject: [PATCH 1/2] Add view_mode config option to open files with system
 default viewer

Adds a `view_mode` setting under `[behavior]` in config.toml. When set
to `"system"`, pressing F3 (View) opens the file using the OS default
application (xdg-open on Linux, open on macOS, explorer on Windows)
instead of the terminal pager. Useful for images, videos, PDFs, and
other binary/non-text formats. Defaults to `"pager"` for unchanged
backward-compatible behaviour.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 internal/app/app.go       |  6 +++++-
 internal/app/commands.go  | 17 +++++++++++++++++
 internal/config/config.go |  6 ++++++
 3 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/internal/app/app.go b/internal/app/app.go
index 7d8b086..93fa509 100644
--- a/internal/app/app.go
+++ b/internal/app/app.go
@@ -675,7 +675,11 @@ func (m Model) startView() (tea.Model, tea.Cmd) {
 	if e == nil || e.IsDir() {
 		return m, nil
 	}
-	return m, viewFileCmd(m.currentFilePath())
+	path := m.currentFilePath()
+	if m.cfg.Behavior.ViewMode == "system" {
+		return m, openSystemDefaultCmd(path)
+	}
+	return m, viewFileCmd(path)
 }
 
 func (m Model) startEdit() (tea.Model, tea.Cmd) {
diff --git a/internal/app/commands.go b/internal/app/commands.go
index 439676f..a7cf2ef 100644
--- a/internal/app/commands.go
+++ b/internal/app/commands.go
@@ -4,6 +4,7 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
+	"runtime"
 
 	tea "github.com/charmbracelet/bubbletea"
 
@@ -67,6 +68,22 @@ func viewFileCmd(path string) tea.Cmd {
 	})
 }
 
+func openSystemDefaultCmd(path string) tea.Cmd {
+	return func() tea.Msg {
+		var c *exec.Cmd
+		switch runtime.GOOS {
+		case "darwin":
+			c = exec.Command("open", path)
+		case "windows":
+			c = exec.Command("explorer", path)
+		default:
+			c = exec.Command("xdg-open", path)
+		}
+		_ = c.Start()
+		return externalDoneMsg{}
+	}
+}
+
 func editFileCmd(path string) tea.Cmd {
 	editor := os.Getenv("EDITOR")
 	if editor == "" {
diff --git a/internal/config/config.go b/internal/config/config.go
index 9db7825..7ebc037 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -24,6 +24,8 @@ type BehaviorConfig struct {
 	EnterAction string `toml:"enter_action"`
 	// What Space does on a file: "preview" (default) or "edit"
 	SpaceAction string `toml:"space_action"`
+	// ViewMode controls how F3 opens files: "pager" (default, uses $PAGER/less) or "system" (OS default app)
+	ViewMode string `toml:"view_mode"`
 }
 
 // KeyBindings defines all configurable key bindings.
@@ -93,6 +95,7 @@ func Default() Config {
 		Behavior: BehaviorConfig{
 			EnterAction: "edit",
 			SpaceAction: "preview",
+			ViewMode:    "pager",
 		},
 		Keys: keys,
 	}
@@ -161,6 +164,9 @@ func Load() Config {
 	if fileCfg.Behavior.SpaceAction != "" {
 		cfg.Behavior.SpaceAction = fileCfg.Behavior.SpaceAction
 	}
+	if fileCfg.Behavior.ViewMode != "" {
+		cfg.Behavior.ViewMode = fileCfg.Behavior.ViewMode
+	}
 
 	mergeKeys(&cfg.Keys, &fileCfg.Keys)
 	normalizeAllKeys(&cfg.Keys)

From 6961239bf07d5e50ab9aed085e02db3e27e13522 Mon Sep 17 00:00:00 2001
From: turnipy <mentossss@gmail.com>
Date: Mon, 6 Apr 2026 12:20:54 +1000
Subject: [PATCH 2/2] Fix space_action not honouring view_mode setting

fileActionCmd's "preview" case called viewFileCmd directly, bypassing
the view_mode config. Now routes through openSystemDefaultCmd when
view_mode = "system", consistent with the F3 View behaviour.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 internal/app/app.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/internal/app/app.go b/internal/app/app.go
index 93fa509..9313351 100644
--- a/internal/app/app.go
+++ b/internal/app/app.go
@@ -557,6 +557,9 @@ func (m *Model) fileActionCmd(path string, action string) tea.Cmd {
 	case "edit":
 		return editFileCmd(path)
 	case "preview":
+		if m.cfg.Behavior.ViewMode == "system" {
+			return openSystemDefaultCmd(path)
+		}
 		return viewFileCmd(path)
 	default:
 		return editFileCmd(path)