Merge pull request #1959 from kareigu/open_scrollback

Support opening scrollback file in default text editor

src/Surface.zig

@@ -3324,52 +3324,20 @@ pub fn performBindingAction(self: *Surface, action: input.Binding.Action) !bool
             }, .unlocked);
         },
 
-        .write_scrollback_file => write_scrollback_file: {
+        .write_screen_file => |v| try self.writeScreenFile(
-            // Create a temporary directory to store our scrollback.
+            .screen,
-            var tmp_dir = try internal_os.TempDir.init();
+            v,
-            errdefer tmp_dir.deinit();
+        ),
 
-            // Open our scrollback file
+        .write_scrollback_file => |v| try self.writeScreenFile(
-            var file = try tmp_dir.dir.createFile("scrollback", .{});
+            .history,
-            defer file.close();
+            v,
-            // Screen.dumpString writes byte-by-byte, so buffer it
+        ),
-            var buf_writer = std.io.bufferedWriter(file.writer());
 
-            // Write the scrollback contents. This requires a lock.
+        .write_selection_file => |v| try self.writeScreenFile(
-            {
+            .selection,
-                self.renderer_state.mutex.lock();
+            v,
-                defer self.renderer_state.mutex.unlock();
+        ),
-
-                // We do not support this for alternate screens
-                // because they don't have scrollback anyways.
-                if (self.io.terminal.active_screen == .alternate) {
-                    tmp_dir.deinit();
-                    break :write_scrollback_file;
-                }
-
-                // We only dump history if we have history. We still keep
-                // the file and write the empty file to the pty so that this
-                // command always works on the primary screen.
-                const pages = &self.io.terminal.screen.pages;
-                if (pages.getBottomRight(.active)) |br| {
-                    const tl = pages.getTopLeft(.history);
-                    try self.io.terminal.screen.dumpString(
-                        buf_writer.writer(),
-                        .{ .tl = tl, .br = br, .unwrap = true },
-                    );
-                }
-            }
-            try buf_writer.flush();
-
-            // Get the final path
-            var path_buf: [std.fs.MAX_PATH_BYTES]u8 = undefined;
-            const path = try tmp_dir.dir.realpath("scrollback", &path_buf);
-
-            self.io.queueMessage(try termio.Message.writeReq(
-                self.alloc,
-                path,
-            ), .unlocked);
-        },
 
         .new_window => try self.app.newWindow(self.rt_app, .{ .parent = self }),
 
@@ -3547,6 +3515,94 @@ fn closingAction(action: input.Binding.Action) bool {
     };
 }
 
+/// The portion of the screen to write for writeScreenFile.
+const WriteScreenLoc = enum {
+    screen, // Full screen
+    history, // History (scrollback)
+    selection, // Selected text
+};
+
+fn writeScreenFile(
+    self: *Surface,
+    loc: WriteScreenLoc,
+    write_action: input.Binding.Action.WriteScreenAction,
+) !void {
+    // Create a temporary directory to store our scrollback.
+    var tmp_dir = try internal_os.TempDir.init();
+    errdefer tmp_dir.deinit();
+
+    // Open our scrollback file
+    var file = try tmp_dir.dir.createFile(@tagName(loc), .{});
+    defer file.close();
+    // Screen.dumpString writes byte-by-byte, so buffer it
+    var buf_writer = std.io.bufferedWriter(file.writer());
+
+    // Write the scrollback contents. This requires a lock.
+    {
+        self.renderer_state.mutex.lock();
+        defer self.renderer_state.mutex.unlock();
+
+        // We only dump history if we have history. We still keep
+        // the file and write the empty file to the pty so that this
+        // command always works on the primary screen.
+        const pages = &self.io.terminal.screen.pages;
+        const sel_: ?terminal.Selection = switch (loc) {
+            .history => history: {
+                // We do not support this for alternate screens
+                // because they don't have scrollback anyways.
+                if (self.io.terminal.active_screen == .alternate) {
+                    break :history null;
+                }
+
+                break :history terminal.Selection.init(
+                    pages.getTopLeft(.history),
+                    pages.getBottomRight(.history) orelse
+                        break :history null,
+                    false,
+                );
+            },
+
+            .screen => screen: {
+                break :screen terminal.Selection.init(
+                    pages.getTopLeft(.screen),
+                    pages.getBottomRight(.screen) orelse
+                        break :screen null,
+                    false,
+                );
+            },
+
+            .selection => self.io.terminal.screen.selection,
+        };
+
+        const sel = sel_ orelse {
+            // If we have no selection we have no data so we do nothing.
+            tmp_dir.deinit();
+            return;
+        };
+        try self.io.terminal.screen.dumpString(
+            buf_writer.writer(),
+            .{
+                .tl = sel.start(),
+                .br = sel.end(),
+                .unwrap = true,
+            },
+        );
+    }
+    try buf_writer.flush();
+
+    // Get the final path
+    var path_buf: [std.fs.MAX_PATH_BYTES]u8 = undefined;
+    const path = try tmp_dir.dir.realpath(@tagName(loc), &path_buf);
+
+    switch (write_action) {
+        .open => try internal_os.open(self.alloc, path),
+        .paste => self.io.queueMessage(try termio.Message.writeReq(
+            self.alloc,
+            path,
+        ), .unlocked),
+    }
+}
+
 /// Call this to complete a clipboard request sent to apprt. This should
 /// only be called once for each request. The data is immediately copied so
 /// it is safe to free the data after this call.

src/config/Config.zig

@@ -1322,7 +1322,13 @@ pub fn default(alloc_gpa: Allocator) Allocator.Error!Config {
     try result.keybind.set.put(
         alloc,
         .{ .key = .{ .translated = .j }, .mods = inputpkg.ctrlOrSuper(.{ .shift = true }) },
-        .{ .write_scrollback_file = {} },
+        .{ .write_scrollback_file = .paste },
+    );
+
+    try result.keybind.set.put(
+        alloc,
+        .{ .key = .{ .translated = .j }, .mods = inputpkg.ctrlOrSuper(.{ .shift = true, .alt = true }) },
+        .{ .write_scrollback_file = .open },
     );
 
     // Expand Selection

src/input/Binding.zig

@@ -203,9 +203,23 @@ pub const Action = union(enum) {
     /// number of prompts to jump forward, negative is backwards.
     jump_to_prompt: i16,
 
-    /// Write the entire scrollback into a temporary file and write the path to
+    /// Write the entire scrollback into a temporary file. The action
-    /// the file to the tty.
+    /// determines what to do with the filepath. Valid values are:
-    write_scrollback_file: void,
+    ///
+    ///   - "paste": Paste the file path into the terminal.
+    ///   - "open": Open the file in the default OS editor for text files.
+    ///
+    write_scrollback_file: WriteScreenAction,
+
+    /// Same as write_scrollback_file but writes the full screen contents.
+    /// See write_scrollback_file for available values.
+    write_screen_file: WriteScreenAction,
+
+    /// Same as write_scrollback_file but writes the selected text.
+    /// If there is no selected text this does nothing (it doesn't
+    /// even create an empty file). See write_scrollback_file for
+    /// available values.
+    write_selection_file: WriteScreenAction,
 
     /// Open a new window.
     new_window: void,
@@ -324,6 +338,11 @@ pub const Action = union(enum) {
         u16,
     };
 
+    pub const WriteScreenAction = enum {
+        paste,
+        open,
+    };
+
     // Extern because it is used in the embedded runtime ABI.
     pub const InspectorMode = enum(c_int) {
         toggle,