From 7fafdeef48d229ba46808fbc2372a11e5ad7bbef Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sat, 18 May 2024 11:47:15 +0530
Subject: [PATCH] More work on choose_fonts

---
 kittens/choose_fonts/faces.go | 16 ++++--
 kittens/choose_fonts/final.go | 95 +++++++++++++++++++++++++++++++++++
 kittens/choose_fonts/main.go  |  5 ++
 kittens/choose_fonts/ui.go    |  9 ++--
 4 files changed, 116 insertions(+), 9 deletions(-)
 create mode 100644 kittens/choose_fonts/final.go

diff --git a/kittens/choose_fonts/faces.go b/kittens/choose_fonts/faces.go
index 3a34c8bdf..840a96a78 100644
--- a/kittens/choose_fonts/faces.go
+++ b/kittens/choose_fonts/faces.go
@@ -29,6 +29,8 @@ type faces struct {
 	preview_cache_mutex sync.Mutex
 }
 
+const highlight_key_style = "fg=magenta bold"
+
 func (self *faces) draw_screen() (err error) {
 	lp := self.handler.lp
 	lp.SetCursorVisible(false)
@@ -36,7 +38,7 @@ func (self *faces) draw_screen() (err error) {
 	styled := lp.SprintStyled
 	lp.QueueWriteString(self.handler.format_title(self.family, 0))
 	lines := []string{
-		fmt.Sprintf("Press %s to select this font, %s to go back to the font list or any of the %s keys below to fine-tune the appearance of the individual font styles.", styled("fg=green", "Enter"), styled("fg=red", "Esc"), styled("fg=magenta bold", "highlighted")), "",
+		fmt.Sprintf("Press %s to select this font, %s to go back to the font list or any of the %s keys below to fine-tune the appearance of the individual font styles.", styled("fg=green", "Enter"), styled("fg=red", "Esc"), styled(highlight_key_style, "highlighted")), "",
 	}
 	_, y, str := self.handler.render_lines.InRectangle(lines, 0, 2, int(sz.WidthCells), int(sz.HeightCells), &self.handler.mouse_state, self.on_click)
 
@@ -85,10 +87,10 @@ func (self *faces) draw_screen() (err error) {
 			y += num_lines + 1
 		}
 	}
-	d(`font_family`, styled("fg=magenta bold", "R")+`egular`)
-	d(`bold_font`, styled("fg=magenta bold", "B")+`old`)
-	d(`italic_font`, styled("fg=magenta bold", "I")+`talic`)
-	d(`bold_italic_font`, "B"+styled("fg=magenta bold", "o")+`ld-Italic`)
+	d(`font_family`, styled(highlight_key_style, "R")+`egular`)
+	d(`bold_font`, styled(highlight_key_style, "B")+`old`)
+	d(`italic_font`, styled(highlight_key_style, "I")+`talic`)
+	d(`bold_italic_font`, "B"+styled(highlight_key_style, "o")+`ld-Italic`)
 
 	return
 }
@@ -113,6 +115,10 @@ func (self *faces) on_key_event(event *loop.KeyEvent) (err error) {
 		self.handler.current_pane = &self.handler.listing
 		return self.handler.draw_screen()
 	}
+	if event.MatchesPressOrRepeat("enter") {
+		event.Handled = true
+		return self.handler.final_pane.on_enter(self.family, self.settings)
+	}
 	return
 }
 
diff --git a/kittens/choose_fonts/final.go b/kittens/choose_fonts/final.go
new file mode 100644
index 000000000..599c3a65a
--- /dev/null
+++ b/kittens/choose_fonts/final.go
@@ -0,0 +1,95 @@
+package choose_fonts
+
+import (
+	"fmt"
+	"strings"
+
+	"kitty/tools/tui/loop"
+)
+
+var _ = fmt.Print
+
+type final_pane struct {
+	handler  *handler
+	settings faces_settings
+	family   string
+	lp       *loop.Loop
+}
+
+func (self *final_pane) render_lines(start_y int, lines ...string) (y int) {
+	sz, _ := self.handler.lp.ScreenSize()
+	_, y, str := self.handler.render_lines.InRectangle(lines, 0, start_y, int(sz.WidthCells), int(sz.HeightCells)-y, &self.handler.mouse_state, self.on_click)
+	self.handler.lp.QueueWriteString(str)
+	return
+}
+
+func (self *final_pane) draw_screen() (err error) {
+	s := self.lp.SprintStyled
+	h := func(x string) string { return s(highlight_key_style, x) }
+
+	self.render_lines(0,
+		fmt.Sprintf("You have chosen the %s family", s(current_val_style, self.family)),
+		"",
+		"What would you like to do?",
+		"",
+		fmt.Sprintf("%s to modify %s and use the new fonts", h("Enter"), s("italic", `kitty.conf`)),
+		"",
+		fmt.Sprintf("%s to abort and return to font selection", h("Esc")),
+		"",
+		fmt.Sprintf("%s to write the new font settings to %s", h("s"), s("italic", `STDOUT`)),
+		"",
+		fmt.Sprintf("%s to quit", h("Ctrl+c")),
+	)
+	return
+}
+
+func (self *final_pane) initialize(h *handler) (err error) {
+	self.handler = h
+	self.lp = h.lp
+	return
+}
+
+func (self *final_pane) on_wakeup() error {
+	return self.handler.draw_screen()
+}
+
+func (self *final_pane) on_click(id string) (err error) {
+	return
+}
+
+func (self faces_settings) serialized() string {
+	return strings.Join([]string{
+		"font_family      " + self.font_family,
+		"bold_font        " + self.bold_font,
+		"italic_font      " + self.italic_font,
+		"bold_italic_font " + self.bold_italic_font,
+	}, "\n")
+}
+
+func (self *final_pane) on_key_event(event *loop.KeyEvent) (err error) {
+	if event.MatchesPressOrRepeat("esc") {
+		event.Handled = true
+		self.handler.current_pane = &self.handler.faces
+		return self.handler.draw_screen()
+	}
+	return
+}
+
+func (self *final_pane) on_text(text string, from_key_event bool, in_bracketed_paste bool) (err error) {
+	if from_key_event {
+		switch text {
+		case "s", "S":
+			output_on_exit = self.settings.serialized() + "\n"
+			self.lp.Quit(0)
+			return
+		}
+	}
+	return
+}
+
+func (self *final_pane) on_enter(family string, settings faces_settings) error {
+	self.settings = settings
+	self.family = family
+	self.handler.current_pane = self
+	return self.handler.draw_screen()
+}
diff --git a/kittens/choose_fonts/main.go b/kittens/choose_fonts/main.go
index 90975aa71..7309770f3 100644
--- a/kittens/choose_fonts/main.go
+++ b/kittens/choose_fonts/main.go
@@ -2,6 +2,7 @@ package choose_fonts
 
 import (
 	"fmt"
+	"os"
 
 	"kitty/tools/cli"
 	"kitty/tools/tty"
@@ -10,6 +11,7 @@ import (
 
 var _ = fmt.Print
 var debugprintln = tty.DebugPrintln
+var output_on_exit string
 
 func main() (rc int, err error) {
 	if err = kitty_font_backend.start(); err != nil {
@@ -59,6 +61,9 @@ func main() (rc int, err error) {
 		lp.KillIfSignalled()
 		return 1, nil
 	}
+	if output_on_exit != "" {
+		os.Stdout.WriteString(output_on_exit)
+	}
 	return lp.ExitCode(), nil
 }
 
diff --git a/kittens/choose_fonts/ui.go b/kittens/choose_fonts/ui.go
index 5014f1b6f..0576bdbb2 100644
--- a/kittens/choose_fonts/ui.go
+++ b/kittens/choose_fonts/ui.go
@@ -51,9 +51,10 @@ type handler struct {
 	graphics_manager     graphics_manager
 	temp_dir             string
 
-	listing   FontList
-	faces     faces
-	face_pane face_panel
+	listing    FontList
+	faces      faces
+	face_pane  face_panel
+	final_pane final_pane
 
 	panes        []pane
 	current_pane pane
@@ -76,7 +77,7 @@ func (h *handler) initialize() (err error) {
 	h.lp.SetCursorVisible(false)
 	h.lp.OnQueryResponse = h.on_query_response
 	h.lp.QueryTerminal("font_size", "dpi_x", "dpi_y", "foreground", "background")
-	h.panes = []pane{&h.listing, &h.faces, &h.face_pane}
+	h.panes = []pane{&h.listing, &h.faces, &h.face_pane, &h.final_pane}
 	for _, pane := range h.panes {
 		if err = pane.initialize(h); err != nil {
 			return err