From a7d41b3c17a789faeb8d2c27b92a06ecdaa23f6a Mon Sep 17 00:00:00 2001
From: accusys <accusys@accusys-Mac-mini-M4-2.local>
Date: Thu, 19 Mar 2026 01:55:44 +0800
Subject: [PATCH] feat(player): add drag-to-seek on progress bar

---
 src/main.rs | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/src/main.rs b/src/main.rs
index df32df7..53a3ff6 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -65,6 +65,7 @@ fn run(config: &Config) -> Result<()> {
     let mut yolo: Option<YoloLoader> = None;
     let mut chunks: Option<ChunkLoader> = None;
     let mut is_fullscreen = false;
+    let mut is_dragging = false;
 
     if let Some(ref video_path) = config.video {
         info!("Loading video: {:?}", video_path);
@@ -281,6 +282,8 @@ fn run(config: &Config) -> Result<()> {
                         let bar_x_start = 10i32;
                         let bar_width = config.width as i32 - 20;
                         if x >= bar_x_start && x <= bar_x_start + bar_width {
+                            is_dragging = true;
+                            player_state.playback = PlaybackState::Paused;
                             let ratio = (x - bar_x_start) as f64 / bar_width as f64;
                             let target_frame = (player_state.total_frames as f64 * ratio) as u64;
                             if let Some(ref mut dec) = decoder {
@@ -299,6 +302,36 @@ fn run(config: &Config) -> Result<()> {
                         }
                     }
                 }
+                sdl2::event::Event::MouseButtonUp { .. } => {
+                    if is_dragging {
+                        is_dragging = false;
+                        info!("Drag seek ended");
+                    }
+                }
+                sdl2::event::Event::MouseMotion { x, y, .. } => {
+                    if is_dragging {
+                        let progress_y = config.height as i32 - progress_height + 5;
+                        let bar_height = 20i32;
+                        if y >= progress_y - 30
+                            && y <= progress_y + bar_height + 30
+                            && player_state.total_frames > 0
+                        {
+                            let bar_x_start = 10i32;
+                            let bar_width = config.width as i32 - 20;
+                            let clamped_x = x.clamp(bar_x_start, bar_x_start + bar_width);
+                            let ratio = (clamped_x - bar_x_start) as f64 / bar_width as f64;
+                            let target_frame = (player_state.total_frames as f64 * ratio) as u64;
+                            if let Some(ref mut dec) = decoder {
+                                let time_ms =
+                                    ((target_frame as f64 / player_state.fps) * 1000.0) as u64;
+                                if dec.seek(time_ms).is_ok() {
+                                    player_state.current_frame = target_frame;
+                                    player_state.current_time_ms = time_ms;
+                                }
+                            }
+                        }
+                    }
+                }
                 _ => {}
             }
         }