file blame at right revision from commit-details (gitui-org#1324)

Author: heiskane

CHANGELOG.md

@@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * customizable `cmdbar_bg` theme color & screen spanning selected line bg [[@gigitsu](https://github.com/gigitsu)] ([#1299](https://github.com/extrawurst/gitui/pull/1299))
 * use filewatcher instead of polling updates ([#1](https://github.com/extrawurst/gitui/issues/1))
 * word motions to text input [[@Rodrigodd](https://github.com/Rodrigodd)] ([#1256](https://github.com/extrawurst/gitui/issues/1256))
+* file blame at right revision from commit-details [[@heiskane](https://github.com/heiskane)] ([#1122](https://github.com/extrawurst/gitui/issues/1122))
 
 ### Fixes
 * remove insecure dependency `ansi_term` ([#1290](https://github.com/extrawurst/gitui/issues/1290))

src/components/commit_details/mod.rs

@@ -102,6 +102,8 @@ impl CommitDetailsComponent {
 		self.commit = params;
 
 		if let Some(id) = params {
+			self.file_tree.set_commit(Some(id.id));
+
 			if let Some(other) = id.other {
 				self.compare_details
 					.set_commits(Some((id.id, other)));

src/components/status_tree.rs

@@ -14,7 +14,7 @@ use crate::{
 	ui::style::SharedTheme,
 };
 use anyhow::Result;
-use asyncgit::{hash, StatusItem, StatusItemType};
+use asyncgit::{hash, sync::CommitId, StatusItem, StatusItemType};
 use crossterm::event::Event;
 use std::{borrow::Cow, cell::Cell, convert::From, path::Path};
 use tui::{backend::Backend, layout::Rect, text::Span, Frame};
@@ -35,6 +35,7 @@ pub struct StatusTreeComponent {
 	key_config: SharedKeyConfig,
 	scroll_top: Cell<usize>,
 	visible: bool,
+	revision: Option<CommitId>,
 }
 
 impl StatusTreeComponent {
@@ -58,9 +59,14 @@ impl StatusTreeComponent {
 			scroll_top: Cell::new(0),
 			pending: true,
 			visible: false,
+			revision: None,
 		}
 	}
 
+	pub fn set_commit(&mut self, revision: Option<CommitId>) {
+		self.revision = revision;
+	}
+
 	///
 	pub fn update(&mut self, list: &[StatusItem]) -> Result<()> {
 		self.pending = false;
@@ -428,7 +434,7 @@ impl Component for StatusTreeComponent {
 								StackablePopupOpen::BlameFile(
 									BlameFileOpen {
 										file_path: status_item.path,
-										commit_id: None,
+										commit_id: self.revision,
 										selection: None,
 									},
 								),