Struct broot::tree_build::TreeBuilder
source · pub struct TreeBuilder<'c> {
pub options: TreeOptions,
pub matches_max: Option<usize>,
/* private fields */
}
Expand description
The TreeBuilder builds a Tree according to options (including an optional search pattern) Instead of the final TreeLine, the builder uses an internal structure: BLine. All BLines used during build are stored in the blines arena and kept until the end. Most operations and temporary data structures just deal with the ids of lines the blines arena.
Fields§
§options: TreeOptions
§matches_max: Option<usize>
Implementations§
source§impl<'c> TreeBuilder<'c>
impl<'c> TreeBuilder<'c>
sourcepub fn from(
path: PathBuf,
options: TreeOptions,
targeted_size: usize,
con: &'c AppContext
) -> Result<TreeBuilder<'c>, TreeBuildError>
pub fn from(
path: PathBuf,
options: TreeOptions,
targeted_size: usize,
con: &'c AppContext
) -> Result<TreeBuilder<'c>, TreeBuildError>
Examples found in repository?
src/browser/browser_state.rs (lines 56-61)
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pub fn new(
path: PathBuf,
mut options: TreeOptions,
screen: Screen,
con: &AppContext,
dam: &Dam,
) -> Result<BrowserState, TreeBuildError> {
let pending_task = options.pattern
.take()
.as_option()
.map(|pattern| BrowserTask::Search { pattern, total: false });
let builder = TreeBuilder::from(
path,
options,
BrowserState::page_height(screen) as usize,
con,
)?;
let tree = builder.build_tree(false, dam)?;
Ok(BrowserState {
tree,
filtered_tree: None,
mode: initial_mode(con),
pending_task,
})
}
fn search(&mut self, pattern: InputPattern, total: bool) {
self.pending_task = Some(BrowserTask::Search { pattern, total });
}
/// build a cmdResult asking for the addition of a new state
/// being a browser state similar to the current one but with
/// different options or a different root, or both
fn modified(
&self,
screen: Screen,
root: PathBuf,
options: TreeOptions,
message: Option<&'static str>,
in_new_panel: bool,
con: &AppContext,
) -> CmdResult {
let tree = self.displayed_tree();
let mut new_state = BrowserState::new(root, options, screen, con, &Dam::unlimited());
if let Ok(bs) = &mut new_state {
if tree.selection != 0 {
bs.displayed_tree_mut().try_select_path(&tree.selected_line().path);
}
}
CmdResult::from_optional_state(
new_state,
message,
in_new_panel,
)
}
pub fn root(&self) -> &Path {
self.tree.root()
}
pub fn page_height(screen: Screen) -> usize {
screen.height as usize - 2 // br shouldn't be displayed when the screen is smaller
}
/// return a reference to the currently displayed tree, which
/// is the filtered tree if there's one, the base tree if not.
pub fn displayed_tree(&self) -> &Tree {
self.filtered_tree.as_ref().unwrap_or(&self.tree)
}
/// return a mutable reference to the currently displayed tree, which
/// is the filtered tree if there's one, the base tree if not.
pub fn displayed_tree_mut(&mut self) -> &mut Tree {
self.filtered_tree.as_mut().unwrap_or(&mut self.tree)
}
pub fn open_selection_stay_in_broot(
&mut self,
screen: Screen,
con: &AppContext,
in_new_panel: bool,
keep_pattern: bool,
) -> Result<CmdResult, ProgramError> {
let tree = self.displayed_tree();
let line = tree.selected_line();
let mut target = line.target().to_path_buf();
if line.is_dir() {
if tree.selection == 0 {
// opening the root would be going to where we already are.
// We go up one level instead
if let Some(parent) = target.parent() {
target = PathBuf::from(parent);
}
}
let dam = Dam::unlimited();
Ok(CmdResult::from_optional_state(
BrowserState::new(
target,
if keep_pattern {
tree.options.clone()
} else {
tree.options.without_pattern()
},
screen,
con,
&dam,
),
None,
in_new_panel,
))
} else {
match opener::open(&target) {
Ok(exit_status) => {
info!("open returned with exit_status {:?}", exit_status);
Ok(CmdResult::Keep)
}
Err(e) => Ok(CmdResult::error(format!("{:?}", e))),
}
}
}
pub fn go_to_parent(
&mut self,
screen: Screen,
con: &AppContext,
in_new_panel: bool,
) -> CmdResult {
match &self.displayed_tree().selected_line().path.parent() {
Some(path) => CmdResult::from_optional_state(
BrowserState::new(
path.to_path_buf(),
self.displayed_tree().options.without_pattern(),
screen,
con,
&Dam::unlimited(),
),
None,
in_new_panel,
),
None => CmdResult::error("no parent found"),
}
}
}
impl PanelState for BrowserState {
fn tree_root(&self) -> Option<&Path> {
Some(self.root())
}
fn get_type(&self) -> PanelStateType {
PanelStateType::Tree
}
fn set_mode(&mut self, mode: Mode) {
self.mode = mode;
}
fn get_mode(&self) -> Mode {
self.mode
}
fn get_pending_task(&self) -> Option<&'static str> {
if self.displayed_tree().has_dir_missing_sum() {
Some("computing stats")
} else if self.displayed_tree().is_missing_git_status_computation() {
Some("computing git status")
} else {
self
.pending_task.as_ref().map(|task| match task {
BrowserTask::Search{ .. } => "searching",
BrowserTask::StageAll(_) => "staging",
})
}
}
fn selected_path(&self) -> Option<&Path> {
Some(&self.displayed_tree().selected_line().path)
}
fn selection(&self) -> Option<Selection<'_>> {
let tree = self.displayed_tree();
let mut selection = tree.selected_line().as_selection();
selection.line = tree.options.pattern.pattern
.get_match_line_count(selection.path)
.unwrap_or(0);
Some(selection)
}
fn tree_options(&self) -> TreeOptions {
self.displayed_tree().options.clone()
}
/// build a cmdResult asking for the addition of a new state
/// being a browser state similar to the current one but with
/// different options
fn with_new_options(
&mut self,
screen: Screen,
change_options: &dyn Fn(&mut TreeOptions) -> &'static str,
in_new_panel: bool,
con: &AppContext,
) -> CmdResult {
let tree = self.displayed_tree();
let mut options = tree.options.clone();
let message = change_options(&mut options);
let message = Some(message);
self.modified(
screen,
tree.root().clone(),
options,
message,
in_new_panel,
con,
)
}
fn clear_pending(&mut self) {
self.pending_task = None;
}
fn on_click(
&mut self,
_x: u16,
y: u16,
_screen: Screen,
_con: &AppContext,
) -> Result<CmdResult, ProgramError> {
self.displayed_tree_mut().try_select_y(y as usize);
Ok(CmdResult::Keep)
}
fn on_double_click(
&mut self,
_x: u16,
y: u16,
screen: Screen,
con: &AppContext,
) -> Result<CmdResult, ProgramError> {
if self.displayed_tree().selection == y as usize {
self.open_selection_stay_in_broot(screen, con, false, false)
} else {
// A double click always come after a simple click at
// same position. If it's not the selected line, it means
// the click wasn't on a selectable/openable tree line
Ok(CmdResult::Keep)
}
}
fn on_pattern(
&mut self,
pat: InputPattern,
_app_state: &AppState,
_con: &AppContext,
) -> Result<CmdResult, ProgramError> {
if pat.is_none() {
self.filtered_tree = None;
}
if let Some(filtered_tree) = &self.filtered_tree {
if pat != filtered_tree.options.pattern {
self.search(pat, false);
}
} else {
self.search(pat, false);
}
Ok(CmdResult::Keep)
}
fn on_internal(
&mut self,
w: &mut W,
internal_exec: &InternalExecution,
input_invocation: Option<&VerbInvocation>,
trigger_type: TriggerType,
app_state: &mut AppState,
cc: &CmdContext,
) -> Result<CmdResult, ProgramError> {
let con = &cc.app.con;
let screen = cc.app.screen;
let page_height = BrowserState::page_height(cc.app.screen);
let bang = input_invocation
.map(|inv| inv.bang)
.unwrap_or(internal_exec.bang);
Ok(match internal_exec.internal {
Internal::back => {
if let Some(filtered_tree) = &self.filtered_tree {
let filtered_selection = &filtered_tree.selected_line().path;
if self.tree.try_select_path(filtered_selection) {
self.tree.make_selection_visible(page_height);
}
self.filtered_tree = None;
CmdResult::Keep
} else if self.tree.selection > 0 {
self.tree.selection = 0;
CmdResult::Keep
} else {
CmdResult::PopState
}
}
Internal::focus => internal_focus::on_internal(
internal_exec,
input_invocation,
trigger_type,
&self.displayed_tree().selected_line().path,
self.displayed_tree().options.clone(),
app_state,
cc,
),
Internal::select => internal_select::on_internal(
internal_exec,
input_invocation,
trigger_type,
self.displayed_tree_mut(),
app_state,
cc,
),
Internal::up_tree => match self.displayed_tree().root().parent() {
Some(path) => internal_focus::on_path(
path.to_path_buf(),
screen,
self.displayed_tree().options.clone(),
bang,
con,
),
None => CmdResult::error("no parent found"),
},
Internal::open_stay => self.open_selection_stay_in_broot(screen, con, bang, false)?,
Internal::open_stay_filter => self.open_selection_stay_in_broot(screen, con, bang, true)?,
Internal::line_down => {
let count = get_arg(input_invocation, internal_exec, 1);
self.displayed_tree_mut().move_selection(count, page_height, true);
CmdResult::Keep
}
Internal::line_up => {
let count = get_arg(input_invocation, internal_exec, 1);
self.displayed_tree_mut().move_selection(-count, page_height, true);
CmdResult::Keep
}
Internal::line_down_no_cycle => {
let count = get_arg(input_invocation, internal_exec, 1);
self.displayed_tree_mut().move_selection(count, page_height, false);
CmdResult::Keep
}
Internal::line_up_no_cycle => {
let count = get_arg(input_invocation, internal_exec, 1);
self.displayed_tree_mut().move_selection(-count, page_height, false);
CmdResult::Keep
}
Internal::previous_dir => {
self.displayed_tree_mut().try_select_previous_filtered(
|line| line.is_dir(),
page_height,
);
CmdResult::Keep
}
Internal::next_dir => {
self.displayed_tree_mut().try_select_next_filtered(
|line| line.is_dir(),
page_height,
);
CmdResult::Keep
}
Internal::previous_match => {
self.displayed_tree_mut().try_select_previous_filtered(
|line| line.direct_match,
page_height,
);
CmdResult::Keep
}
Internal::next_match => {
self.displayed_tree_mut().try_select_next_filtered(
|line| line.direct_match,
page_height,
);
CmdResult::Keep
}
Internal::previous_same_depth => {
self.displayed_tree_mut().try_select_previous_same_depth(page_height);
CmdResult::Keep
}
Internal::next_same_depth => {
self.displayed_tree_mut().try_select_next_same_depth(page_height);
CmdResult::Keep
}
Internal::page_down => {
let tree = self.displayed_tree_mut();
if !tree.try_scroll(page_height as i32, page_height) {
tree.try_select_last(page_height);
}
CmdResult::Keep
}
Internal::page_up => {
let tree = self.displayed_tree_mut();
if !tree.try_scroll(page_height as i32 * -1, page_height) {
tree.try_select_first();
}
CmdResult::Keep
}
Internal::panel_left => {
let areas = &cc.panel.areas;
if areas.is_first() && areas.nb_pos < con.max_panels_count {
// we ask for the creation of a panel to the left
internal_focus::new_panel_on_path(
self.displayed_tree().selected_line().path.to_path_buf(),
screen,
self.displayed_tree().options.clone(),
PanelPurpose::None,
con,
HDir::Left,
)
} else {
// we let the app handle other cases
CmdResult::HandleInApp(Internal::panel_left_no_open)
}
}
Internal::panel_left_no_open => CmdResult::HandleInApp(Internal::panel_left_no_open),
Internal::panel_right => {
let areas = &cc.panel.areas;
let selected_path = &self.displayed_tree().selected_line().path;
if areas.is_last() && areas.nb_pos < con.max_panels_count {
let purpose = if selected_path.is_file() && cc.app.preview_panel.is_none() {
PanelPurpose::Preview
} else {
PanelPurpose::None
};
// we ask for the creation of a panel to the right
internal_focus::new_panel_on_path(
selected_path.to_path_buf(),
screen,
self.displayed_tree().options.clone(),
purpose,
con,
HDir::Right,
)
} else {
// we ask the app to handle other cases :
// focus the panel to the right or close the leftest one
CmdResult::HandleInApp(Internal::panel_right_no_open)
}
}
Internal::panel_right_no_open => CmdResult::HandleInApp(Internal::panel_right_no_open),
Internal::parent => self.go_to_parent(screen, con, bang),
Internal::print_tree => {
print::print_tree(self.displayed_tree(), cc.app.screen, cc.app.panel_skin, con)?
}
Internal::root_up => {
let tree = self.displayed_tree();
let root = tree.root();
if let Some(new_root) = root.parent() {
self.modified(
screen,
new_root.to_path_buf(),
tree.options.clone(),
None,
bang,
con,
)
} else {
CmdResult::error(format!("{:?} has no parent", root))
}
}
Internal::root_down => {
let tree = self.displayed_tree();
if tree.selection > 0 {
let root_len = tree.root().components().count();
let new_root = tree.selected_line().path
.components()
.take(root_len + 1)
.collect();
self.modified(
screen,
new_root,
tree.options.clone(),
None,
bang,
con,
)
} else {
CmdResult::error("No selected line")
}
}
Internal::stage_all_files => {
let pattern = self.displayed_tree().options.pattern.clone();
self.pending_task = Some(BrowserTask::StageAll(pattern));
if cc.app.stage_panel.is_none() {
let stage_options = self.tree.options.without_pattern();
CmdResult::NewPanel {
state: Box::new(StageState::new(app_state, stage_options, con)),
purpose: PanelPurpose::None,
direction: HDir::Right,
}
} else {
CmdResult::Keep
}
}
Internal::select_first => {
self.displayed_tree_mut().try_select_first();
CmdResult::Keep
}
Internal::select_last => {
let page_height = BrowserState::page_height(screen);
self.displayed_tree_mut().try_select_last(page_height);
CmdResult::Keep
}
Internal::start_end_panel => {
if cc.panel.purpose.is_arg_edition() {
debug!("start_end understood as end");
CmdResult::ClosePanel {
validate_purpose: true,
panel_ref: PanelReference::Active,
}
} else {
debug!("start_end understood as start");
let tree_options = self.displayed_tree().options.clone();
if let Some(input_invocation) = input_invocation {
// we'll go for input arg editing
let path = if let Some(input_arg) = &input_invocation.args {
path::path_from(self.root(), PathAnchor::Unspecified, input_arg)
} else {
self.root().to_path_buf()
};
let arg_type = SelectionType::Any; // We might do better later
let purpose = PanelPurpose::ArgEdition { arg_type };
internal_focus::new_panel_on_path(
path, screen, tree_options, purpose, con, HDir::Right,
)
} else {
// we just open a new panel on the selected path,
// without purpose
internal_focus::new_panel_on_path(
self.displayed_tree().selected_line().path.to_path_buf(),
screen,
tree_options,
PanelPurpose::None,
con,
HDir::Right,
)
}
}
}
Internal::total_search => {
match self.filtered_tree.as_ref().map(|t| t.total_search) {
None => {
CmdResult::error("this verb can be used only after a search")
}
Some(true) => {
CmdResult::error("search was already total: all possible matches have been ranked")
}
Some(false) => {
self.search(self.displayed_tree().options.pattern.clone(), true);
CmdResult::Keep
}
}
}
Internal::quit => CmdResult::Quit,
_ => self.on_internal_generic(
w,
internal_exec,
input_invocation,
trigger_type,
app_state,
cc,
)?,
})
}
fn no_verb_status(
&self,
has_previous_state: bool,
con: &AppContext,
) -> Status {
let tree = self.displayed_tree();
if tree.is_empty() {
if tree.build_report.hidden_count > 0 {
let mut parts = Vec::new();
if let Some(md) = con.standard_status.all_files_hidden.clone() {
parts.push(md);
}
if let Some(md) = con.standard_status.all_files_git_ignored.clone() {
parts.push(md);
}
if !parts.is_empty() {
return Status::from_error(parts.join(". "));
}
}
}
let mut ssb = con.standard_status.builder(
PanelStateType::Tree,
tree.selected_line().as_selection(),
);
ssb.has_previous_state = has_previous_state;
ssb.is_filtered = self.filtered_tree.is_some();
ssb.has_removed_pattern = false;
ssb.on_tree_root = tree.selection == 0;
ssb.status()
}
/// do some work, totally or partially, if there's some to do.
/// Stop as soon as the dam asks for interruption
fn do_pending_task(
&mut self,
app_state: &mut AppState,
screen: Screen,
con: &AppContext,
dam: &mut Dam,
) -> Result<(), ProgramError> {
if let Some(pending_task) = self.pending_task.take() {
match pending_task {
BrowserTask::Search { pattern, total } => {
let pattern_str = pattern.raw.clone();
let mut options = self.tree.options.clone();
options.pattern = pattern;
let root = self.tree.root().clone();
let page_height = BrowserState::page_height(screen) as usize;
let builder = TreeBuilder::from(root, options, page_height, con)?;
let filtered_tree = time!(
Info,
"tree filtering",
&pattern_str,
builder.build_tree(total, dam),
);
if let Ok(mut ft) = filtered_tree {
ft.try_select_best_match();
ft.make_selection_visible(BrowserState::page_height(screen));
self.filtered_tree = Some(ft);
}
}
BrowserTask::StageAll(pattern) => {
let tree = self.displayed_tree();
let root = tree.root().clone();
let mut options = tree.options.clone();
let total_search = true;
options.pattern = pattern; // should be the same
let builder = TreeBuilder::from(root, options, con.max_staged_count, con);
let mut paths = builder
.and_then(|mut builder| {
builder.matches_max = Some(con.max_staged_count);
time!(builder.build_paths(
total_search,
dam,
|line| line.file_type.is_file(),
))
})?;
for path in paths.drain(..) {
app_state.stage.add(path);
}
}
}
} else if self.displayed_tree().is_missing_git_status_computation() {
let root_path = self.displayed_tree().root();
let git_status = git::get_tree_status(root_path, dam);
self.displayed_tree_mut().git_status = git_status;
} else {
self.displayed_tree_mut().fetch_some_missing_dir_sum(dam, con);
}
Ok(())
}
More examples
src/tree/tree.rs (lines 43-48)
38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66
pub fn refresh(
&mut self,
page_height: usize,
con: &AppContext,
) -> Result<(), errors::TreeBuildError> {
let builder = TreeBuilder::from(
self.root().to_path_buf(),
self.options.clone(),
page_height,
con,
)?;
let mut tree = builder
.build_tree(
false, // on refresh we always do a non total search
&Dam::unlimited(),
)
.unwrap(); // should not fail
// we save the old selection to try restore it
let selected_path = self.selected_line().path.to_path_buf();
mem::swap(&mut self.lines, &mut tree.lines);
self.scroll = 0;
if !self.try_select_path(&selected_path) {
if self.selection >= self.lines.len() {
self.selection = 0;
}
}
self.make_selection_visible(page_height);
Ok(())
}
sourcepub fn build_tree(
self,
total_search: bool,
dam: &Dam
) -> Result<Tree, TreeBuildError>
pub fn build_tree(
self,
total_search: bool,
dam: &Dam
) -> Result<Tree, TreeBuildError>
build a tree. Can be called only once per builder.
Return None if the lifetime expires before end of computation (usually because the user hit a key)
Examples found in repository?
src/browser/browser_state.rs (line 62)
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pub fn new(
path: PathBuf,
mut options: TreeOptions,
screen: Screen,
con: &AppContext,
dam: &Dam,
) -> Result<BrowserState, TreeBuildError> {
let pending_task = options.pattern
.take()
.as_option()
.map(|pattern| BrowserTask::Search { pattern, total: false });
let builder = TreeBuilder::from(
path,
options,
BrowserState::page_height(screen) as usize,
con,
)?;
let tree = builder.build_tree(false, dam)?;
Ok(BrowserState {
tree,
filtered_tree: None,
mode: initial_mode(con),
pending_task,
})
}
fn search(&mut self, pattern: InputPattern, total: bool) {
self.pending_task = Some(BrowserTask::Search { pattern, total });
}
/// build a cmdResult asking for the addition of a new state
/// being a browser state similar to the current one but with
/// different options or a different root, or both
fn modified(
&self,
screen: Screen,
root: PathBuf,
options: TreeOptions,
message: Option<&'static str>,
in_new_panel: bool,
con: &AppContext,
) -> CmdResult {
let tree = self.displayed_tree();
let mut new_state = BrowserState::new(root, options, screen, con, &Dam::unlimited());
if let Ok(bs) = &mut new_state {
if tree.selection != 0 {
bs.displayed_tree_mut().try_select_path(&tree.selected_line().path);
}
}
CmdResult::from_optional_state(
new_state,
message,
in_new_panel,
)
}
pub fn root(&self) -> &Path {
self.tree.root()
}
pub fn page_height(screen: Screen) -> usize {
screen.height as usize - 2 // br shouldn't be displayed when the screen is smaller
}
/// return a reference to the currently displayed tree, which
/// is the filtered tree if there's one, the base tree if not.
pub fn displayed_tree(&self) -> &Tree {
self.filtered_tree.as_ref().unwrap_or(&self.tree)
}
/// return a mutable reference to the currently displayed tree, which
/// is the filtered tree if there's one, the base tree if not.
pub fn displayed_tree_mut(&mut self) -> &mut Tree {
self.filtered_tree.as_mut().unwrap_or(&mut self.tree)
}
pub fn open_selection_stay_in_broot(
&mut self,
screen: Screen,
con: &AppContext,
in_new_panel: bool,
keep_pattern: bool,
) -> Result<CmdResult, ProgramError> {
let tree = self.displayed_tree();
let line = tree.selected_line();
let mut target = line.target().to_path_buf();
if line.is_dir() {
if tree.selection == 0 {
// opening the root would be going to where we already are.
// We go up one level instead
if let Some(parent) = target.parent() {
target = PathBuf::from(parent);
}
}
let dam = Dam::unlimited();
Ok(CmdResult::from_optional_state(
BrowserState::new(
target,
if keep_pattern {
tree.options.clone()
} else {
tree.options.without_pattern()
},
screen,
con,
&dam,
),
None,
in_new_panel,
))
} else {
match opener::open(&target) {
Ok(exit_status) => {
info!("open returned with exit_status {:?}", exit_status);
Ok(CmdResult::Keep)
}
Err(e) => Ok(CmdResult::error(format!("{:?}", e))),
}
}
}
pub fn go_to_parent(
&mut self,
screen: Screen,
con: &AppContext,
in_new_panel: bool,
) -> CmdResult {
match &self.displayed_tree().selected_line().path.parent() {
Some(path) => CmdResult::from_optional_state(
BrowserState::new(
path.to_path_buf(),
self.displayed_tree().options.without_pattern(),
screen,
con,
&Dam::unlimited(),
),
None,
in_new_panel,
),
None => CmdResult::error("no parent found"),
}
}
}
impl PanelState for BrowserState {
fn tree_root(&self) -> Option<&Path> {
Some(self.root())
}
fn get_type(&self) -> PanelStateType {
PanelStateType::Tree
}
fn set_mode(&mut self, mode: Mode) {
self.mode = mode;
}
fn get_mode(&self) -> Mode {
self.mode
}
fn get_pending_task(&self) -> Option<&'static str> {
if self.displayed_tree().has_dir_missing_sum() {
Some("computing stats")
} else if self.displayed_tree().is_missing_git_status_computation() {
Some("computing git status")
} else {
self
.pending_task.as_ref().map(|task| match task {
BrowserTask::Search{ .. } => "searching",
BrowserTask::StageAll(_) => "staging",
})
}
}
fn selected_path(&self) -> Option<&Path> {
Some(&self.displayed_tree().selected_line().path)
}
fn selection(&self) -> Option<Selection<'_>> {
let tree = self.displayed_tree();
let mut selection = tree.selected_line().as_selection();
selection.line = tree.options.pattern.pattern
.get_match_line_count(selection.path)
.unwrap_or(0);
Some(selection)
}
fn tree_options(&self) -> TreeOptions {
self.displayed_tree().options.clone()
}
/// build a cmdResult asking for the addition of a new state
/// being a browser state similar to the current one but with
/// different options
fn with_new_options(
&mut self,
screen: Screen,
change_options: &dyn Fn(&mut TreeOptions) -> &'static str,
in_new_panel: bool,
con: &AppContext,
) -> CmdResult {
let tree = self.displayed_tree();
let mut options = tree.options.clone();
let message = change_options(&mut options);
let message = Some(message);
self.modified(
screen,
tree.root().clone(),
options,
message,
in_new_panel,
con,
)
}
fn clear_pending(&mut self) {
self.pending_task = None;
}
fn on_click(
&mut self,
_x: u16,
y: u16,
_screen: Screen,
_con: &AppContext,
) -> Result<CmdResult, ProgramError> {
self.displayed_tree_mut().try_select_y(y as usize);
Ok(CmdResult::Keep)
}
fn on_double_click(
&mut self,
_x: u16,
y: u16,
screen: Screen,
con: &AppContext,
) -> Result<CmdResult, ProgramError> {
if self.displayed_tree().selection == y as usize {
self.open_selection_stay_in_broot(screen, con, false, false)
} else {
// A double click always come after a simple click at
// same position. If it's not the selected line, it means
// the click wasn't on a selectable/openable tree line
Ok(CmdResult::Keep)
}
}
fn on_pattern(
&mut self,
pat: InputPattern,
_app_state: &AppState,
_con: &AppContext,
) -> Result<CmdResult, ProgramError> {
if pat.is_none() {
self.filtered_tree = None;
}
if let Some(filtered_tree) = &self.filtered_tree {
if pat != filtered_tree.options.pattern {
self.search(pat, false);
}
} else {
self.search(pat, false);
}
Ok(CmdResult::Keep)
}
fn on_internal(
&mut self,
w: &mut W,
internal_exec: &InternalExecution,
input_invocation: Option<&VerbInvocation>,
trigger_type: TriggerType,
app_state: &mut AppState,
cc: &CmdContext,
) -> Result<CmdResult, ProgramError> {
let con = &cc.app.con;
let screen = cc.app.screen;
let page_height = BrowserState::page_height(cc.app.screen);
let bang = input_invocation
.map(|inv| inv.bang)
.unwrap_or(internal_exec.bang);
Ok(match internal_exec.internal {
Internal::back => {
if let Some(filtered_tree) = &self.filtered_tree {
let filtered_selection = &filtered_tree.selected_line().path;
if self.tree.try_select_path(filtered_selection) {
self.tree.make_selection_visible(page_height);
}
self.filtered_tree = None;
CmdResult::Keep
} else if self.tree.selection > 0 {
self.tree.selection = 0;
CmdResult::Keep
} else {
CmdResult::PopState
}
}
Internal::focus => internal_focus::on_internal(
internal_exec,
input_invocation,
trigger_type,
&self.displayed_tree().selected_line().path,
self.displayed_tree().options.clone(),
app_state,
cc,
),
Internal::select => internal_select::on_internal(
internal_exec,
input_invocation,
trigger_type,
self.displayed_tree_mut(),
app_state,
cc,
),
Internal::up_tree => match self.displayed_tree().root().parent() {
Some(path) => internal_focus::on_path(
path.to_path_buf(),
screen,
self.displayed_tree().options.clone(),
bang,
con,
),
None => CmdResult::error("no parent found"),
},
Internal::open_stay => self.open_selection_stay_in_broot(screen, con, bang, false)?,
Internal::open_stay_filter => self.open_selection_stay_in_broot(screen, con, bang, true)?,
Internal::line_down => {
let count = get_arg(input_invocation, internal_exec, 1);
self.displayed_tree_mut().move_selection(count, page_height, true);
CmdResult::Keep
}
Internal::line_up => {
let count = get_arg(input_invocation, internal_exec, 1);
self.displayed_tree_mut().move_selection(-count, page_height, true);
CmdResult::Keep
}
Internal::line_down_no_cycle => {
let count = get_arg(input_invocation, internal_exec, 1);
self.displayed_tree_mut().move_selection(count, page_height, false);
CmdResult::Keep
}
Internal::line_up_no_cycle => {
let count = get_arg(input_invocation, internal_exec, 1);
self.displayed_tree_mut().move_selection(-count, page_height, false);
CmdResult::Keep
}
Internal::previous_dir => {
self.displayed_tree_mut().try_select_previous_filtered(
|line| line.is_dir(),
page_height,
);
CmdResult::Keep
}
Internal::next_dir => {
self.displayed_tree_mut().try_select_next_filtered(
|line| line.is_dir(),
page_height,
);
CmdResult::Keep
}
Internal::previous_match => {
self.displayed_tree_mut().try_select_previous_filtered(
|line| line.direct_match,
page_height,
);
CmdResult::Keep
}
Internal::next_match => {
self.displayed_tree_mut().try_select_next_filtered(
|line| line.direct_match,
page_height,
);
CmdResult::Keep
}
Internal::previous_same_depth => {
self.displayed_tree_mut().try_select_previous_same_depth(page_height);
CmdResult::Keep
}
Internal::next_same_depth => {
self.displayed_tree_mut().try_select_next_same_depth(page_height);
CmdResult::Keep
}
Internal::page_down => {
let tree = self.displayed_tree_mut();
if !tree.try_scroll(page_height as i32, page_height) {
tree.try_select_last(page_height);
}
CmdResult::Keep
}
Internal::page_up => {
let tree = self.displayed_tree_mut();
if !tree.try_scroll(page_height as i32 * -1, page_height) {
tree.try_select_first();
}
CmdResult::Keep
}
Internal::panel_left => {
let areas = &cc.panel.areas;
if areas.is_first() && areas.nb_pos < con.max_panels_count {
// we ask for the creation of a panel to the left
internal_focus::new_panel_on_path(
self.displayed_tree().selected_line().path.to_path_buf(),
screen,
self.displayed_tree().options.clone(),
PanelPurpose::None,
con,
HDir::Left,
)
} else {
// we let the app handle other cases
CmdResult::HandleInApp(Internal::panel_left_no_open)
}
}
Internal::panel_left_no_open => CmdResult::HandleInApp(Internal::panel_left_no_open),
Internal::panel_right => {
let areas = &cc.panel.areas;
let selected_path = &self.displayed_tree().selected_line().path;
if areas.is_last() && areas.nb_pos < con.max_panels_count {
let purpose = if selected_path.is_file() && cc.app.preview_panel.is_none() {
PanelPurpose::Preview
} else {
PanelPurpose::None
};
// we ask for the creation of a panel to the right
internal_focus::new_panel_on_path(
selected_path.to_path_buf(),
screen,
self.displayed_tree().options.clone(),
purpose,
con,
HDir::Right,
)
} else {
// we ask the app to handle other cases :
// focus the panel to the right or close the leftest one
CmdResult::HandleInApp(Internal::panel_right_no_open)
}
}
Internal::panel_right_no_open => CmdResult::HandleInApp(Internal::panel_right_no_open),
Internal::parent => self.go_to_parent(screen, con, bang),
Internal::print_tree => {
print::print_tree(self.displayed_tree(), cc.app.screen, cc.app.panel_skin, con)?
}
Internal::root_up => {
let tree = self.displayed_tree();
let root = tree.root();
if let Some(new_root) = root.parent() {
self.modified(
screen,
new_root.to_path_buf(),
tree.options.clone(),
None,
bang,
con,
)
} else {
CmdResult::error(format!("{:?} has no parent", root))
}
}
Internal::root_down => {
let tree = self.displayed_tree();
if tree.selection > 0 {
let root_len = tree.root().components().count();
let new_root = tree.selected_line().path
.components()
.take(root_len + 1)
.collect();
self.modified(
screen,
new_root,
tree.options.clone(),
None,
bang,
con,
)
} else {
CmdResult::error("No selected line")
}
}
Internal::stage_all_files => {
let pattern = self.displayed_tree().options.pattern.clone();
self.pending_task = Some(BrowserTask::StageAll(pattern));
if cc.app.stage_panel.is_none() {
let stage_options = self.tree.options.without_pattern();
CmdResult::NewPanel {
state: Box::new(StageState::new(app_state, stage_options, con)),
purpose: PanelPurpose::None,
direction: HDir::Right,
}
} else {
CmdResult::Keep
}
}
Internal::select_first => {
self.displayed_tree_mut().try_select_first();
CmdResult::Keep
}
Internal::select_last => {
let page_height = BrowserState::page_height(screen);
self.displayed_tree_mut().try_select_last(page_height);
CmdResult::Keep
}
Internal::start_end_panel => {
if cc.panel.purpose.is_arg_edition() {
debug!("start_end understood as end");
CmdResult::ClosePanel {
validate_purpose: true,
panel_ref: PanelReference::Active,
}
} else {
debug!("start_end understood as start");
let tree_options = self.displayed_tree().options.clone();
if let Some(input_invocation) = input_invocation {
// we'll go for input arg editing
let path = if let Some(input_arg) = &input_invocation.args {
path::path_from(self.root(), PathAnchor::Unspecified, input_arg)
} else {
self.root().to_path_buf()
};
let arg_type = SelectionType::Any; // We might do better later
let purpose = PanelPurpose::ArgEdition { arg_type };
internal_focus::new_panel_on_path(
path, screen, tree_options, purpose, con, HDir::Right,
)
} else {
// we just open a new panel on the selected path,
// without purpose
internal_focus::new_panel_on_path(
self.displayed_tree().selected_line().path.to_path_buf(),
screen,
tree_options,
PanelPurpose::None,
con,
HDir::Right,
)
}
}
}
Internal::total_search => {
match self.filtered_tree.as_ref().map(|t| t.total_search) {
None => {
CmdResult::error("this verb can be used only after a search")
}
Some(true) => {
CmdResult::error("search was already total: all possible matches have been ranked")
}
Some(false) => {
self.search(self.displayed_tree().options.pattern.clone(), true);
CmdResult::Keep
}
}
}
Internal::quit => CmdResult::Quit,
_ => self.on_internal_generic(
w,
internal_exec,
input_invocation,
trigger_type,
app_state,
cc,
)?,
})
}
fn no_verb_status(
&self,
has_previous_state: bool,
con: &AppContext,
) -> Status {
let tree = self.displayed_tree();
if tree.is_empty() {
if tree.build_report.hidden_count > 0 {
let mut parts = Vec::new();
if let Some(md) = con.standard_status.all_files_hidden.clone() {
parts.push(md);
}
if let Some(md) = con.standard_status.all_files_git_ignored.clone() {
parts.push(md);
}
if !parts.is_empty() {
return Status::from_error(parts.join(". "));
}
}
}
let mut ssb = con.standard_status.builder(
PanelStateType::Tree,
tree.selected_line().as_selection(),
);
ssb.has_previous_state = has_previous_state;
ssb.is_filtered = self.filtered_tree.is_some();
ssb.has_removed_pattern = false;
ssb.on_tree_root = tree.selection == 0;
ssb.status()
}
/// do some work, totally or partially, if there's some to do.
/// Stop as soon as the dam asks for interruption
fn do_pending_task(
&mut self,
app_state: &mut AppState,
screen: Screen,
con: &AppContext,
dam: &mut Dam,
) -> Result<(), ProgramError> {
if let Some(pending_task) = self.pending_task.take() {
match pending_task {
BrowserTask::Search { pattern, total } => {
let pattern_str = pattern.raw.clone();
let mut options = self.tree.options.clone();
options.pattern = pattern;
let root = self.tree.root().clone();
let page_height = BrowserState::page_height(screen) as usize;
let builder = TreeBuilder::from(root, options, page_height, con)?;
let filtered_tree = time!(
Info,
"tree filtering",
&pattern_str,
builder.build_tree(total, dam),
);
if let Ok(mut ft) = filtered_tree {
ft.try_select_best_match();
ft.make_selection_visible(BrowserState::page_height(screen));
self.filtered_tree = Some(ft);
}
}
BrowserTask::StageAll(pattern) => {
let tree = self.displayed_tree();
let root = tree.root().clone();
let mut options = tree.options.clone();
let total_search = true;
options.pattern = pattern; // should be the same
let builder = TreeBuilder::from(root, options, con.max_staged_count, con);
let mut paths = builder
.and_then(|mut builder| {
builder.matches_max = Some(con.max_staged_count);
time!(builder.build_paths(
total_search,
dam,
|line| line.file_type.is_file(),
))
})?;
for path in paths.drain(..) {
app_state.stage.add(path);
}
}
}
} else if self.displayed_tree().is_missing_git_status_computation() {
let root_path = self.displayed_tree().root();
let git_status = git::get_tree_status(root_path, dam);
self.displayed_tree_mut().git_status = git_status;
} else {
self.displayed_tree_mut().fetch_some_missing_dir_sum(dam, con);
}
Ok(())
}
More examples
src/tree/tree.rs (lines 50-53)
38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66
pub fn refresh(
&mut self,
page_height: usize,
con: &AppContext,
) -> Result<(), errors::TreeBuildError> {
let builder = TreeBuilder::from(
self.root().to_path_buf(),
self.options.clone(),
page_height,
con,
)?;
let mut tree = builder
.build_tree(
false, // on refresh we always do a non total search
&Dam::unlimited(),
)
.unwrap(); // should not fail
// we save the old selection to try restore it
let selected_path = self.selected_line().path.to_path_buf();
mem::swap(&mut self.lines, &mut tree.lines);
self.scroll = 0;
if !self.try_select_path(&selected_path) {
if self.selection >= self.lines.len() {
self.selection = 0;
}
}
self.make_selection_visible(page_height);
Ok(())
}
sourcepub fn build_paths<F>(
self,
total_search: bool,
dam: &Dam,
filter: F
) -> Result<Vec<PathBuf>, TreeBuildError>where
F: Fn(&BLine) -> bool,
pub fn build_paths<F>(
self,
total_search: bool,
dam: &Dam,
filter: F
) -> Result<Vec<PathBuf>, TreeBuildError>where
F: Fn(&BLine) -> bool,
Examples found in repository?
src/browser/browser_state.rs (lines 683-687)
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fn do_pending_task(
&mut self,
app_state: &mut AppState,
screen: Screen,
con: &AppContext,
dam: &mut Dam,
) -> Result<(), ProgramError> {
if let Some(pending_task) = self.pending_task.take() {
match pending_task {
BrowserTask::Search { pattern, total } => {
let pattern_str = pattern.raw.clone();
let mut options = self.tree.options.clone();
options.pattern = pattern;
let root = self.tree.root().clone();
let page_height = BrowserState::page_height(screen) as usize;
let builder = TreeBuilder::from(root, options, page_height, con)?;
let filtered_tree = time!(
Info,
"tree filtering",
&pattern_str,
builder.build_tree(total, dam),
);
if let Ok(mut ft) = filtered_tree {
ft.try_select_best_match();
ft.make_selection_visible(BrowserState::page_height(screen));
self.filtered_tree = Some(ft);
}
}
BrowserTask::StageAll(pattern) => {
let tree = self.displayed_tree();
let root = tree.root().clone();
let mut options = tree.options.clone();
let total_search = true;
options.pattern = pattern; // should be the same
let builder = TreeBuilder::from(root, options, con.max_staged_count, con);
let mut paths = builder
.and_then(|mut builder| {
builder.matches_max = Some(con.max_staged_count);
time!(builder.build_paths(
total_search,
dam,
|line| line.file_type.is_file(),
))
})?;
for path in paths.drain(..) {
app_state.stage.add(path);
}
}
}
} else if self.displayed_tree().is_missing_git_status_computation() {
let root_path = self.displayed_tree().root();
let git_status = git::get_tree_status(root_path, dam);
self.displayed_tree_mut().git_status = git_status;
} else {
self.displayed_tree_mut().fetch_some_missing_dir_sum(dam, con);
}
Ok(())
}