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feat(buffers): move buffer lifetime management to new Buffer.Manager module

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This commit is contained in:
CJ van den Berg 2025-01-21 21:42:36 +01:00
parent fbeaefe7ff
commit aa1e0674cc
Signed by: neurocyte
GPG key ID: 8EB1E1BB660E3FB9
6 changed files with 109 additions and 48 deletions
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1
src/buffer/Buffer.zig
View file

@ -10,6 +10,7 @@ const max_imbalance = 7;
pub const Root = *const Node;
pub const unicode = @import("unicode.zig");
pub const Manager = @import("Manager.zig");
pub const Cursor = @import("Cursor.zig");
pub const View = @import("View.zig");
pub const Selection = @import("Selection.zig");

79
src/buffer/Manager.zig Normal file
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@ -0,0 +1,79 @@
const std = @import("std");
const Buffer = @import("Buffer.zig");
const Self = @This();
allocator: std.mem.Allocator,
buffers: std.StringHashMapUnmanaged(*Buffer),
pub fn init(allocator: std.mem.Allocator) Self {
return .{
.allocator = allocator,
.buffers = .{},
};
}
pub fn deinit(self: *Self) void {
var i = self.buffers.iterator();
while (i.next()) |p| {
self.allocator.free(p.key_ptr.*);
p.value_ptr.*.deinit();
}
self.buffers.deinit(self.allocator);
}
pub fn open_file(self: *Self, file_path: []const u8) Buffer.LoadFromFileError!*Buffer {
if (self.buffers.get(file_path)) |buffer| {
return buffer;
} else {
var buffer = try Buffer.create(self.allocator);
errdefer buffer.deinit();
try buffer.load_from_file_and_update(file_path);
try self.buffers.put(self.allocator, try self.allocator.dupe(u8, file_path), buffer);
return buffer;
}
}
pub fn open_scratch(self: *Self, file_path: []const u8, content: []const u8) Buffer.LoadFromStringError!*Buffer {
if (self.buffers.get(file_path)) |buffer| {
return buffer;
} else {
var buffer = try Buffer.create(self.allocator);
errdefer buffer.deinit();
try buffer.load_from_string_and_update(file_path, content);
buffer.file_exists = true;
try self.buffers.put(self.allocator, try self.allocator.dupe(u8, file_path), buffer);
return buffer;
}
}
pub fn retire(self: *Self, buffer: *Buffer) void {
_ = self;
_ = buffer;
}
pub fn list(self: *Self, allocator: std.mem.Allocator) []*const Buffer {
_ = self;
_ = allocator;
unreachable;
}
pub fn is_dirty(self: *const Self) bool {
var i = self.buffers.iterator();
while (i.next()) |kv|
if (kv.value_ptr.*.is_dirty())
return true;
return false;
}
pub fn is_buffer_dirty(self: *const Self, file_path: []const u8) bool {
return if (self.buffers.get(file_path)) |buffer| buffer.is_dirty() else false;
}
pub fn save_all(self: *const Self) Buffer.StoreToFileError!void {
var i = self.buffers.iterator();
while (i.next()) |kv| {
const buffer = kv.value_ptr.*;
try buffer.store_to_file_and_clean(buffer.file_path);
}
}

51
src/tui/editor.zig
View file

@ -218,6 +218,7 @@ pub const Editor = struct {
file_path: ?[]const u8,
buffer: ?*Buffer,
buffer_manager: *Buffer.Manager,
lsp_version: usize = 1,
pause_undo: bool = false,
@ -358,7 +359,7 @@ pub const Editor = struct {
self.clamp();
}
fn init(self: *Self, allocator: Allocator, n: Plane) void {
fn init(self: *Self, allocator: Allocator, n: Plane, buffer_manager: *Buffer.Manager) void {
const logger = log.logger("editor");
const frame_rate = tp.env.get().num("frame-rate");
const indent_size = tui.current().config.indent_size;
@ -372,6 +373,7 @@ pub const Editor = struct {
.logger = logger,
.file_path = null,
.buffer = null,
.buffer_manager = buffer_manager,
.handlers = EventHandler.List.init(allocator),
.animation_lag = get_animation_max_lag(),
.animation_frame_rate = frame_rate,
@ -393,7 +395,7 @@ pub const Editor = struct {
self.matches.deinit();
self.handlers.deinit();
self.logger.deinit();
if (self.buffer) |p| p.deinit();
if (self.buffer) |p| self.buffer_manager.retire(p);
if (self.case_data) |cd| cd.deinit();
}
@ -459,28 +461,16 @@ pub const Editor = struct {
self.view.cols = pos.w;
}
pub fn is_dirty(self: *Self) bool {
const b = self.buffer orelse return false;
return b.is_dirty();
}
fn open(self: *Self, file_path: []const u8) !void {
var new_buf = try Buffer.create(self.allocator);
errdefer new_buf.deinit();
try new_buf.load_from_file_and_update(file_path);
return self.open_buffer(file_path, new_buf);
return self.open_buffer(file_path, try self.buffer_manager.open_file(file_path));
}
fn open_scratch(self: *Self, file_path: []const u8, content: []const u8) !void {
var new_buf = try Buffer.create(self.allocator);
errdefer new_buf.deinit();
try new_buf.load_from_string_and_update(file_path, content);
new_buf.file_exists = true;
return self.open_buffer(file_path, new_buf);
return self.open_buffer(file_path, try self.buffer_manager.open_scratch(file_path, content));
}
fn open_buffer(self: *Self, file_path: []const u8, new_buf: *Buffer) !void {
errdefer new_buf.deinit();
errdefer self.buffer_manager.retire(new_buf);
self.cancel_all_selections();
self.get_primary().reset();
self.file_path = try self.allocator.dupe(u8, file_path);
@ -519,17 +509,7 @@ pub const Editor = struct {
}
fn close(self: *Self) !void {
return self.close_internal(false);
}
fn close_dirty(self: *Self) !void {
return self.close_internal(true);
}
fn close_internal(self: *Self, allow_dirty_close: bool) !void {
const b = self.buffer orelse return error.Stop;
if (!allow_dirty_close and b.is_dirty()) return tp.exit("unsaved changes");
if (self.buffer) |b_mut| b_mut.deinit();
if (self.buffer) |b_mut| self.buffer_manager.retire(b_mut);
self.buffer = null;
self.plane.erase();
self.plane.home();
@ -3770,7 +3750,8 @@ pub const Editor = struct {
pub fn close_file_without_saving(self: *Self, _: Context) Result {
self.cancel_all_selections();
try self.close_dirty();
if (self.buffer) |buffer| buffer.reset_to_last_saved();
try self.close();
}
pub const close_file_without_saving_meta = .{ .description = "Close file without saving" };
@ -4759,8 +4740,8 @@ pub const Editor = struct {
pub const set_file_type_meta = .{ .arguments = &.{.string} };
};
pub fn create(allocator: Allocator, parent: Widget) !Widget {
return EditorWidget.create(allocator, parent);
pub fn create(allocator: Allocator, parent: Widget, buffer_manager: *Buffer.Manager) !Widget {
return EditorWidget.create(allocator, parent, buffer_manager);
}
pub const EditorWidget = struct {
@ -4782,10 +4763,10 @@ pub const EditorWidget = struct {
const Self = @This();
const Commands = command.Collection(Editor);
fn create(allocator: Allocator, parent: Widget) !Widget {
fn create(allocator: Allocator, parent: Widget, buffer_manager: *Buffer.Manager) !Widget {
const container = try WidgetList.createH(allocator, parent, "editor.container", .dynamic);
const self: *Self = try allocator.create(Self);
try self.init(allocator, container.widget());
try self.init(allocator, container.widget(), buffer_manager);
try self.commands.init(&self.editor);
const editorWidget = Widget.to(self);
try container.add(try editor_gutter.create(allocator, container.widget(), editorWidget, &self.editor));
@ -4794,7 +4775,7 @@ pub const EditorWidget = struct {
return container.widget();
}
fn init(self: *Self, allocator: Allocator, parent: Widget) !void {
fn init(self: *Self, allocator: Allocator, parent: Widget, buffer_manager: *Buffer.Manager) !void {
var n = try Plane.init(&(Widget.Box{}).opts("editor"), parent.plane.*);
errdefer n.deinit();
@ -4803,7 +4784,7 @@ pub const EditorWidget = struct {
.plane = n,
.editor = undefined,
};
self.editor.init(allocator, n);
self.editor.init(allocator, n, buffer_manager);
errdefer self.editor.deinit();
try self.editor.push_cursor();
}

19
src/tui/mainview.zig
View file

@ -14,6 +14,7 @@ const build_options = @import("build_options");
const Plane = @import("renderer").Plane;
const input = @import("input");
const command = @import("command");
const BufferManager = @import("Buffer").Manager;
const tui = @import("tui.zig");
const Box = @import("Box.zig");
@ -47,6 +48,7 @@ active_view: ?usize = 0,
panels: ?*WidgetList = null,
last_match_text: ?[]const u8 = null,
location_history: location_history,
buffer_manager: BufferManager,
file_stack: std.ArrayList([]const u8),
find_in_files_state: enum { init, adding, done } = .done,
file_list_type: FileListType = .find_in_files,
@ -70,6 +72,7 @@ pub fn create(allocator: std.mem.Allocator) !Widget {
.file_stack = std.ArrayList([]const u8).init(allocator),
.views = undefined,
.views_widget = undefined,
.buffer_manager = BufferManager.init(allocator),
};
try self.commands.init(self);
const w = Widget.to(self);
@ -104,6 +107,7 @@ pub fn deinit(self: *Self, allocator: std.mem.Allocator) void {
self.commands.deinit();
self.widgets.deinit(allocator);
self.floating_views.deinit();
self.buffer_manager.deinit();
allocator.destroy(self);
}
@ -237,14 +241,7 @@ fn toggle_view(self: *Self, view: anytype) !void {
}
fn check_all_not_dirty(self: *const Self) command.Result {
for (self.editors.items) |editor|
if (editor.is_dirty())
return tp.exit("unsaved changes");
}
fn check_active_not_dirty(self: *const Self) command.Result {
if (self.active_editor) |idx|
if (self.editors.items[idx].is_dirty())
if (self.buffer_manager.is_dirty())
return tp.exit("unsaved changes");
}
@ -296,6 +293,8 @@ const cmds = struct {
self.clear_find_in_files_results(.diagnostics);
if (self.file_list_type == .diagnostics and self.is_panel_view_showing(filelist_view))
try self.toggle_panel_view(filelist_view, false);
self.buffer_manager.deinit();
self.buffer_manager = BufferManager.init(self.allocator);
try project_manager.open(project_dir);
const project = tp.env.get().str("project");
tui.current().rdr.set_terminal_working_directory(project);
@ -352,7 +351,6 @@ const cmds = struct {
if (!same_file) {
if (self.get_active_editor()) |editor| {
try self.check_active_not_dirty();
editor.send_editor_jump_source() catch {};
}
try self.create_editor();
@ -395,7 +393,6 @@ const cmds = struct {
pub const open_gui_config_meta = .{ .description = "Edit gui configuration file" };
pub fn create_scratch_buffer(self: *Self, ctx: Ctx) Result {
try self.check_all_not_dirty();
tui.reset_drag_context();
try self.create_editor();
try command.executeName("open_scratch_buffer", ctx);
@ -863,7 +860,7 @@ fn create_editor(self: *Self) !void {
if (self.get_active_file_path()) |file_path| self.push_file_stack(file_path) catch {};
try self.delete_active_view();
command.executeName("enter_mode_default", .{}) catch {};
var editor_widget = try ed.create(self.allocator, Widget.to(self));
var editor_widget = try ed.create(self.allocator, Widget.to(self), &self.buffer_manager);
errdefer editor_widget.deinit(self.allocator);
const editor = editor_widget.get("editor") orelse @panic("mainview editor not found");
if (self.top_bar) |bar| editor.subscribe(EventHandler.to_unowned(bar)) catch @panic("subscribe unsupported");

1
src/tui/mode/mini/open_file.zig
View file

@ -11,7 +11,6 @@ pub const create = Type.create;
pub fn load_entries(self: *Type) error{ Exit, OutOfMemory }!void {
const editor = tui.get_active_editor() orelse return;
if (editor.is_dirty()) return tp.exit("unsaved changes");
if (editor.file_path) |old_path|
if (std.mem.lastIndexOf(u8, old_path, "/")) |pos|
try self.file_path.appendSlice(old_path[0 .. pos + 1]);

4
src/tui/tui.zig
View file

@ -991,6 +991,10 @@ pub fn get_active_selection(allocator: std.mem.Allocator) ?[]u8 {
return editor.get_selection(sel, allocator) catch null;
}
pub fn get_buffer_manager() ?*@import("Buffer").Manager {
return if (current().mainview.dynamic_cast(mainview)) |mv_| &mv_.buffer_manager else null;
}
fn context_check() void {
if (instance_ == null) @panic("tui call out of context");
}