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use anyhow::Result;
use strfmt::strfmt;
use crate::keybindings::Bindings;
use crate::opener::Opener;
/// Help message to be displayed when help key is pressed.
/// Default help key is `'h'`.
static HELP_TO_FORMAT: &str = "
{Quit:<10}: quit
{Help:<10}: help
- Navigation -
{MoveLeft:<10}: cd to parent directory
{MoveRight:<10}: cd to child directory
{MoveUp:<10}: one line up
{MoveDown:<10}: one line down
{KeyHome:<10}: go to first line
{End:<10}: go to last line
{PageUp:<10}: 10 lines up
{PageDown:<10}: 10 lines down
{Tab:<10}: cycle tab
- Actions -
{ToggleDualPane:<10}: toggle dual pane - if the width is sufficiant
{TogglePreviewSecond:<10}: toggle a preview on the second pane
{ToggleDisplayFull:<10}: toggle metadata on files
{ToggleHidden:<10}: toggle hidden
{Shell:<10}: shell in current directory
{OpenFile:<10}: open the selected file with :
- default {Default}
- audio {Audio}
- images {Bitmap}
- office {Office}
- pdf, ebooks {Readable}
- text {Text}
- video {Video}
- vectorials {Vectorial}
- compressed files are decompressed
- iso images are mounted
{NvimFilepicker:<10}: open in current nvim session
{NvimSetAddress:<10}: setup the nvim rpc address
{Preview:<10}: preview this file
{MediaInfo:<10}: display infos about a media file
{Back:<10}: move back to previous dir
{Home:<10}: move to $HOME
{GoRoot:<10}: move to root (/)
{GoStart:<10}: move to starting point
{MarksNew:<10}: mark current path
{MarksJump:<10}: jump to a mark
{SearchNext:<10}: search next matching element
{FuzzyFind:<10}: fuzzy finder for file
{FuzzyFindLine:<10}: fuzzy finder for line
{FuzzyFindHelp:<10}: fuzzy finder from help
{RefreshView:<10}: refresh view
{CopyFilename:<10}: copy filename to clipboard
{CopyFilepath:<10}: copy filepath to clipboard
{DragNDrop:<10}: dragon-drop selected file
{OpenConfig:<10}: open the config file
{SetWallpaper:<10}: set the selected file as wallpaper with nitrogen
- Action on flagged files -
{ToggleFlag:<10}: toggle flag on a file
{FlagAll:<10}: flag all
{ClearFlags:<10}: clear flags
{ReverseFlags:<10}: reverse flags
{Symlink:<10}: symlink to current dir
{CopyPaste:<10}: copy to current dir
{CutPaste:<10}: move to current dir
{DeleteFile:<10}: delete files permanently
{TrashMoveFile:<10}: move to trash
{Compress:<10}: compress into an archive
{Diff:<10}: display the diff of the first 2 flagged files
- Trash -
{TrashOpen:<10}: Open the trash (enter to restore, del clear)
{TrashEmpty:<10}: Empty the trash
- Tree -
Navigate as usual. Most actions works as in 'normal' view.
{Tree:<10}: Toggle tree mode
{TreeFold:<10}: Fold a node
{TreeFoldAll:<10}: Fold every node
{TreeUnFoldAll:<10}: Unfold every node
- MODES -
{Tree:<10}: TREE
{Chmod:<10}: CHMOD
{Exec:<10}: EXEC
{NewDir:<10}: NEWDIR
{NewFile:<10}: NEWFILE
{Rename:<10}: RENAME
{Goto:<10}: GOTO
{RegexMatch:<10}: REGEXMATCH
{Jump:<10}: JUMP
{Sort:<10}: SORT
{History:<10}: HISTORY
{Shortcut:<10}: SHORTCUT
{EncryptedDrive:<10}: ENCRYPTED DRIVE
(m: open & mount, u: unmount & close, g: go there)
{RemovableDevices:<10}: REMOVABLE MTP DEVICES
(m: mount, u: unmount, g: go there)
{Search:<10}: SEARCH
{Command:<10}: COMMAND
{Bulk:<10}: BULK
{ShellMenu:<10}: SHELL MENU
{RemoteMount:<10}: MOUNT REMOTE PATH
{Filter:<10}: FILTER
(by name \"n name\", by ext \"e ext\", only directories d or all for reset)
{Enter:<10}: Execute mode then NORMAL
{ResetMode:<10}: NORMAL
- MOC -
Control MOC from your TUI
{MocpAddToPlayList:<10}: MOCP: Add selected file or folder to the playlist
{MocpPrevious:<10}: MOCP: Previous song
{MocpTogglePause:<10}: MOCP: Toggle play/pause.
{MocpNext:<10}: MOCP: Next song
{MocpGoToSong:<10}: MOCP: Go to currently playing song
{MocpClearPlaylist:<10}: MOCP: Clear the playlist
";
const CUSTOM_HELP: &str = "
- CUSTOM ACTIONS -
%s: the selected file,
%f: the flagged files,
%e: the extension of the file,
%n: the filename only,
%p: the full path of the current directory.
";
/// Holds the help string, formated with current keybindings.
pub struct Help {
/// The help string, formated with current keybindings.
pub help: String,
}
impl Help {
/// Creates an Help instance from keybindings.
/// If multiple keybindings are bound to the same action, the last one
/// is displayed.
pub fn from_keybindings(binds: &Bindings, opener: &Opener) -> Result<Self> {
let mut strings = binds.keybind_reversed();
let openers = opener.opener_association.as_map_of_strings();
log::info!("{openers:?}");
strings.extend(openers);
let mut help = strfmt(HELP_TO_FORMAT, &strings)?;
help = Self::complete_with_custom_binds(&binds.custom, help);
Ok(Self { help })
}
fn complete_with_custom_binds(custom_binds: &Option<Vec<String>>, mut help: String) -> String {
if let Some(customs) = &custom_binds {
help.push_str(CUSTOM_HELP);
for custom in customs.iter() {
help.push_str(custom);
}
}
help
}
}
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