1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 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
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119

use {
    super::*,
    crate::{
        app::*,
        browser::BrowserState,
        command::TriggerType,
        display::Screen,
        path,
        selection_type::SelectionType,
        task_sync::Dam,
        tree::TreeOptions,
    },
    std::path::{Path, PathBuf},
};

pub fn on_path(
    path: PathBuf,
    screen: &mut Screen,
    tree_options: TreeOptions,
    in_new_panel: bool,
    con: &AppContext,
) -> AppStateCmdResult {
    if in_new_panel {
        new_panel_on_path(path, screen, tree_options, PanelPurpose::None, con, HDir::Right)
    } else {
        new_state_on_path(path, screen, tree_options, con)
    }
}

pub fn new_state_on_path(
    path: PathBuf,
    screen: &mut Screen,
    tree_options: TreeOptions,
    con: &AppContext,
) -> AppStateCmdResult {
    let path = path::closest_dir(&path);
    AppStateCmdResult::from_optional_state(
        BrowserState::new(path, tree_options, screen, con, &Dam::unlimited()),
        false,
    )
}

pub fn new_panel_on_path(
    path: PathBuf,
    screen: &mut Screen,
    tree_options: TreeOptions,
    purpose: PanelPurpose,
    con: &AppContext,
    direction: HDir,
) -> AppStateCmdResult {
    let path = path::closest_dir(&path);
    match BrowserState::new(path, tree_options, screen, con, &Dam::unlimited()) {
        Ok(Some(os)) => {
            AppStateCmdResult::NewPanel {
                state: Box::new(os),
                purpose,
                direction,
            }
        }
        Ok(None) => AppStateCmdResult::Keep, // this isn't supposed to happen
        Err(e) => AppStateCmdResult::DisplayError(e.to_string()),
    }
}

/// general implementation for verbs based on the :focus internal with optionally
/// a bang or an argument.
pub fn on_internal(
    internal_exec: &InternalExecution,
    input_invocation: Option<&VerbInvocation>,
    trigger_type: TriggerType,
    selected_path: &Path,
    screen: &mut Screen,
    con: &AppContext,
    tree_options: TreeOptions,
) -> AppStateCmdResult {
    if let Some(arg) = &internal_exec.arg {
        // the internal_execution specifies the path to use
        // (it may come from a configured verb whose execution is
        //  `:focus some/path`).
        // The given path may be relative hence the need for the
        // state's selection
        let path = path::path_from(selected_path, arg);
        let bang = input_invocation
            .map(|inv| inv.bang)
            .unwrap_or(internal_exec.bang);
        return on_path(path, screen, tree_options, bang, con);
    }
    if let Some(input_invocation) = &input_invocation {
        if let Some(input_arg) = &input_invocation.args {
            // user typed a path in the input
            match trigger_type {
                TriggerType::Input => {
                    // the :focus internal execution was triggered from the
                    // input (which must be a kind of alias for :focus)
                    // so we do exactly what the input asks for
                    let path = path::path_from(selected_path, input_arg);
                    let bang = input_invocation.bang || internal_exec.bang;
                    return on_path(path, screen, tree_options, bang, con);
                }
                _ => {
                    // the :focus internal was triggered by a key, which
                    // means the user wants to explore the arg with purpose
                    // of selecting a path
                    let base_dir = selected_path.to_string_lossy();
                    let path = path::path_from(&*base_dir, input_arg);
                    let arg_type = SelectionType::Any; // We might do better later
                    let purpose = PanelPurpose::ArgEdition { arg_type };
                    return new_panel_on_path(path, screen, tree_options, purpose, con, HDir::Right);
                }
            }
        }
    }
    // user only wants to open the selected path, either in the same panel or
    // in a new one
    let bang = input_invocation
        .map(|inv| inv.bang)
        .unwrap_or(internal_exec.bang);
    on_path(selected_path.to_path_buf(), screen, tree_options, bang, con)
}