Trait gio::prelude::FileMonitorExt

pub trait FileMonitorExt: 'static {
    fn cancel(&self) -> bool;
    fn emit_event<P: IsA<File>, Q: IsA<File>>(
        &self, 
        child: &P, 
        other_file: &Q, 
        event_type: FileMonitorEvent
    );
    fn is_cancelled(&self) -> bool;
    fn set_rate_limit(&self, limit_msecs: i32);
    fn rate_limit(&self) -> i32;
    fn connect_changed<F: Fn(&Self, &File, Option<&File>, FileMonitorEvent) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
    fn connect_cancelled_notify<F: Fn(&Self) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
    fn connect_rate_limit_notify<F: Fn(&Self) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
}

Trait containing all FileMonitor methods.

Implementors

FileMonitor

Required methods

fn cancel(&self) -> bool

Cancels a file monitor.

Returns

always true

fn emit_event<P: IsA<File>, Q: IsA<File>>(
    &self,
    child: &P,
    other_file: &Q,
    event_type: FileMonitorEvent
)

Emits the signal::FileMonitor::changed signal if a change has taken place. Should be called from file monitor implementations only.

Implementations are responsible to call this method from the [thread-default main context][g-main-context-push-thread-default] of the thread that the monitor was created in.

child

a File.

other_file

a File.

event_type

a set of FileMonitorEvent flags.

fn is_cancelled(&self) -> bool

Returns whether the monitor is canceled.

Returns

true if monitor is canceled. false otherwise.

fn set_rate_limit(&self, limit_msecs: i32)

Sets the rate limit to which the self will report consecutive change events to the same file.

limit_msecs

a non-negative integer with the limit in milliseconds to poll for changes

fn rate_limit(&self) -> i32

fn connect_changed<F: Fn(&Self, &File, Option<&File>, FileMonitorEvent) + 'static>(
    &self,
    f: F
) -> SignalHandlerId

Emitted when file has been changed.

If using FileMonitorFlags::WATCH_MOVES on a directory monitor, and the information is available (and if supported by the backend), event_type may be FileMonitorEvent::Renamed, FileMonitorEvent::MovedIn or FileMonitorEvent::MovedOut.

In all cases file will be a child of the monitored directory. For renames, file will be the old name and other_file is the new name. For “moved in” events, file is the name of the file that appeared and other_file is the old name that it was moved from (in another directory). For “moved out” events, file is the name of the file that used to be in this directory and other_file is the name of the file at its new location.

It makes sense to treat FileMonitorEvent::MovedIn as equivalent to FileMonitorEvent::Created and FileMonitorEvent::MovedOut as equivalent to FileMonitorEvent::Deleted, with extra information. FileMonitorEvent::Renamed is equivalent to a delete/create pair. This is exactly how the events will be reported in the case that the FileMonitorFlags::WATCH_MOVES flag is not in use.

If using the deprecated flag FileMonitorFlags::SEND_MOVED flag and event_type is FileMonitorEvent::Moved, file will be set to a File containing the old path, and other_file will be set to a File containing the new path.

In all the other cases, other_file will be set to None.

file

a File.

other_file

a File or None.

event_type

a FileMonitorEvent.

fn connect_cancelled_notify<F: Fn(&Self) + 'static>(
    &self,
    f: F
) -> SignalHandlerId

fn connect_rate_limit_notify<F: Fn(&Self) + 'static>(
    &self,
    f: F
) -> SignalHandlerId

Implementors

impl<O: IsA<FileMonitor>> FileMonitorExt for O