#[repr(transparent)]pub struct Clipboard { /* private fields */ }Expand description
The Clipboard object represents a clipboard of data shared
between different processes or between different widgets in
the same process. Each clipboard is identified by a name encoded as a
gdk::Atom. (Conversion to and from strings can be done with
gdk::Atom::intern() and gdk::Atom::name().) The default clipboard
corresponds to the “CLIPBOARD” atom; another commonly used clipboard
is the “PRIMARY” clipboard, which, in X, traditionally contains
the currently selected text.
To support having a number of different formats on the clipboard
at the same time, the clipboard mechanism allows providing
callbacks instead of the actual data. When you set the contents
of the clipboard, you can either supply the data directly (via
functions like set_text()), or you can supply a
callback to be called at a later time when the data is needed (via
gtk_clipboard_set_with_data() or gtk_clipboard_set_with_owner().)
Providing a callback also avoids having to make copies of the data
when it is not needed.
gtk_clipboard_set_with_data() and gtk_clipboard_set_with_owner()
are quite similar; the choice between the two depends mostly on
which is more convenient in a particular situation.
The former is most useful when you want to have a blob of data
with callbacks to convert it into the various data types that you
advertise. When the clear_func you provided is called, you
simply free the data blob. The latter is more useful when the
contents of clipboard reflect the internal state of a glib::Object
(As an example, for the PRIMARY clipboard, when an entry widget
provides the clipboard’s contents the contents are simply the
text within the selected region.) If the contents change, the
entry widget can call gtk_clipboard_set_with_owner() to update
the timestamp for clipboard ownership, without having to worry
about clear_func being called.
Requesting the data from the clipboard is essentially
asynchronous. If the contents of the clipboard are provided within
the same process, then a direct function call will be made to
retrieve the data, but if they are provided by another process,
then the data needs to be retrieved from the other process, which
may take some time. To avoid blocking the user interface, the call
to request the selection, request_contents() takes a
callback that will be called when the contents are received (or
when the request fails.) If you don’t want to deal with providing
a separate callback, you can also use wait_for_contents().
What this does is run the GLib main loop recursively waiting for
the contents. This can simplify the code flow, but you still have
to be aware that other callbacks in your program can be called
while this recursive mainloop is running.
Along with the functions to get the clipboard contents as an
arbitrary data chunk, there are also functions to retrieve
it as text, request_text() and
wait_for_text(). These functions take care of
determining which formats are advertised by the clipboard
provider, asking for the clipboard in the best available format
and converting the results into the UTF-8 encoding. (The standard
form for representing strings in GTK+.)
Implements
Implementations
sourceimpl Clipboard
impl Clipboard
sourcepub fn clear(&self)
pub fn clear(&self)
Clears the contents of the clipboard. Generally this should only
be called between the time you call gtk_clipboard_set_with_owner()
or gtk_clipboard_set_with_data(),
and when the clear_func you supplied is called. Otherwise, the
clipboard may be owned by someone else.
sourcepub fn request_contents<P: FnOnce(&Clipboard, &SelectionData) + 'static>(
&self,
target: &Atom,
callback: P
)
pub fn request_contents<P: FnOnce(&Clipboard, &SelectionData) + 'static>(
&self,
target: &Atom,
callback: P
)
Requests the contents of clipboard as the given target. When the results of the result are later received the supplied callback will be called.
target
an atom representing the form into which the clipboard owner should convert the selection.
callback
A function to call when the results are received
(or the retrieval fails). If the retrieval fails the length field of
selection_data will be negative.
sourcepub fn request_image<P: FnOnce(&Clipboard, Option<&Pixbuf>) + 'static>(
&self,
callback: P
)
pub fn request_image<P: FnOnce(&Clipboard, Option<&Pixbuf>) + 'static>(
&self,
callback: P
)
Requests the contents of the clipboard as image. When the image is
later received, it will be converted to a gdk_pixbuf::Pixbuf, and
callback will be called.
The pixbuf parameter to callback will contain the resulting
gdk_pixbuf::Pixbuf if the request succeeded, or None if it failed. This
could happen for various reasons, in particular if the clipboard
was empty or if the contents of the clipboard could not be
converted into an image.
callback
a function to call when the image is received, or the retrieval fails. (It will always be called one way or the other.)
sourcepub fn request_rich_text<P: FnOnce(&Clipboard, &Atom, Option<&str>, usize) + 'static>(
&self,
buffer: &impl IsA<TextBuffer>,
callback: P
)
pub fn request_rich_text<P: FnOnce(&Clipboard, &Atom, Option<&str>, usize) + 'static>(
&self,
buffer: &impl IsA<TextBuffer>,
callback: P
)
Requests the contents of the clipboard as rich text. When the rich
text is later received, callback will be called.
The text parameter to callback will contain the resulting rich
text if the request succeeded, or None if it failed. The length
parameter will contain text’s length. This function can fail for
various reasons, in particular if the clipboard was empty or if the
contents of the clipboard could not be converted into rich text form.
buffer
callback
a function to call when the text is received, or the retrieval fails. (It will always be called one way or the other.)
sourcepub fn request_text<P: FnOnce(&Clipboard, Option<&str>) + 'static>(
&self,
callback: P
)
pub fn request_text<P: FnOnce(&Clipboard, Option<&str>) + 'static>(
&self,
callback: P
)
Requests the contents of the clipboard as text. When the text is
later received, it will be converted to UTF-8 if necessary, and
callback will be called.
The text parameter to callback will contain the resulting text if
the request succeeded, or None if it failed. This could happen for
various reasons, in particular if the clipboard was empty or if the
contents of the clipboard could not be converted into text form.
callback
a function to call when the text is received, or the retrieval fails. (It will always be called one way or the other.)
sourcepub fn set_image(&self, pixbuf: &Pixbuf)
pub fn set_image(&self, pixbuf: &Pixbuf)
Sets the contents of the clipboard to the given gdk_pixbuf::Pixbuf.
GTK+ will take responsibility for responding for requests
for the image, and for converting the image into the
requested format.
pixbuf
sourcepub fn set_text(&self, text: &str)
pub fn set_text(&self, text: &str)
Sets the contents of the clipboard to the given UTF-8 string. GTK+ will make a copy of the text and take responsibility for responding for requests for the text, and for converting the text into the requested format.
text
a UTF-8 string.
len
length of text, in bytes, or -1, in which case
the length will be determined with strlen().
sourcepub fn store(&self)
pub fn store(&self)
Stores the current clipboard data somewhere so that it will stay around after the application has quit.
sourcepub fn wait_for_contents(&self, target: &Atom) -> Option<SelectionData>
pub fn wait_for_contents(&self, target: &Atom) -> Option<SelectionData>
Requests the contents of the clipboard using the given target. This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
target
an atom representing the form into which the clipboard owner should convert the selection.
Returns
a newly-allocated SelectionData object or None
if retrieving the given target failed. If non-None,
this value must be freed with gtk_selection_data_free()
when you are finished with it.
sourcepub fn wait_for_image(&self) -> Option<Pixbuf>
pub fn wait_for_image(&self) -> Option<Pixbuf>
Requests the contents of the clipboard as image and converts
the result to a gdk_pixbuf::Pixbuf. This function waits for
the data to be received using the main loop, so events,
timeouts, etc, may be dispatched during the wait.
Returns
a newly-allocated gdk_pixbuf::Pixbuf
object which must be disposed with g_object_unref(), or
None if retrieving the selection data failed. (This could
happen for various reasons, in particular if the clipboard
was empty or if the contents of the clipboard could not be
converted into an image.)
sourcepub fn wait_for_rich_text(
&self,
buffer: &impl IsA<TextBuffer>
) -> (Vec<u8>, Atom)
pub fn wait_for_rich_text(
&self,
buffer: &impl IsA<TextBuffer>
) -> (Vec<u8>, Atom)
Requests the contents of the clipboard as rich text. This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
buffer
Returns
a
newly-allocated binary block of data which must be
freed with g_free(), or None if retrieving the
selection data failed. (This could happen for various
reasons, in particular if the clipboard was empty or
if the contents of the clipboard could not be
converted into text form.)
format
return location for the format of the returned data
sourcepub fn wait_for_targets(&self) -> Option<Vec<Atom>>
pub fn wait_for_targets(&self) -> Option<Vec<Atom>>
Returns a list of targets that are present on the clipboard, or None
if there aren’t any targets available. The returned list must be
freed with g_free().
This function waits for the data to be received using the main
loop, so events, timeouts, etc, may be dispatched during the wait.
Returns
true if any targets are present on the clipboard,
otherwise false.
targets
location
to store an array of targets. The result stored here must
be freed with g_free().
sourcepub fn wait_for_text(&self) -> Option<GString>
pub fn wait_for_text(&self) -> Option<GString>
Requests the contents of the clipboard as text and converts the result to UTF-8 if necessary. This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
Returns
a newly-allocated UTF-8 string which must
be freed with g_free(), or None if retrieving
the selection data failed. (This could happen
for various reasons, in particular if the
clipboard was empty or if the contents of the
clipboard could not be converted into text form.)
sourcepub fn wait_for_uris(&self) -> Vec<GString>
pub fn wait_for_uris(&self) -> Vec<GString>
Requests the contents of the clipboard as URIs. This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
Returns
a newly-allocated None-terminated array of strings which must
be freed with g_strfreev(), or None if retrieving the
selection data failed. (This could happen for various reasons,
in particular if the clipboard was empty or if the contents of
the clipboard could not be converted into URI form.)
sourcepub fn wait_is_image_available(&self) -> bool
pub fn wait_is_image_available(&self) -> bool
Test to see if there is an image available to be pasted This is done by requesting the TARGETS atom and checking if it contains any of the supported image targets. This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
This function is a little faster than calling
wait_for_image() since it doesn’t need to retrieve
the actual image data.
Returns
sourcepub fn wait_is_rich_text_available(&self, buffer: &impl IsA<TextBuffer>) -> bool
pub fn wait_is_rich_text_available(&self, buffer: &impl IsA<TextBuffer>) -> bool
Test to see if there is rich text available to be pasted This is done by requesting the TARGETS atom and checking if it contains any of the supported rich text targets. This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
This function is a little faster than calling
wait_for_rich_text() since it doesn’t need to retrieve
the actual text.
buffer
Returns
sourcepub fn wait_is_target_available(&self, target: &Atom) -> bool
pub fn wait_is_target_available(&self, target: &Atom) -> bool
Checks if a clipboard supports pasting data of a given type. This function can be used to determine if a “Paste” menu item should be insensitive or not.
If you want to see if there’s text available on the clipboard, use gtk_clipboard_wait_is_text_available () instead.
target
A gdk::Atom indicating which target to look for.
Returns
sourcepub fn wait_is_text_available(&self) -> bool
pub fn wait_is_text_available(&self) -> bool
Test to see if there is text available to be pasted This is done by requesting the TARGETS atom and checking if it contains any of the supported text targets. This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
This function is a little faster than calling
wait_for_text() since it doesn’t need to retrieve
the actual text.
Returns
sourcepub fn wait_is_uris_available(&self) -> bool
pub fn wait_is_uris_available(&self) -> bool
Test to see if there is a list of URIs available to be pasted This is done by requesting the TARGETS atom and checking if it contains the URI targets. This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
This function is a little faster than calling
wait_for_uris() since it doesn’t need to retrieve
the actual URI data.
Returns
sourcepub fn get(selection: &Atom) -> Clipboard
pub fn get(selection: &Atom) -> Clipboard
Returns the clipboard object for the given selection.
See for_display() for complete details.
selection
a gdk::Atom which identifies the clipboard to use
Returns
the appropriate clipboard object. If no clipboard already exists, a new one will be created. Once a clipboard object has been created, it is persistent and, since it is owned by GTK+, must not be freed or unreffed.
sourcepub fn default(display: &Display) -> Option<Clipboard>
pub fn default(display: &Display) -> Option<Clipboard>
Returns the default clipboard object for use with cut/copy/paste menu items and keyboard shortcuts.
display
the gdk::Display for which the clipboard is to be retrieved.
Returns
the default clipboard object.
sourcepub fn for_display(display: &Display, selection: &Atom) -> Clipboard
pub fn for_display(display: &Display, selection: &Atom) -> Clipboard
Returns the clipboard object for the given selection.
Cut/copy/paste menu items and keyboard shortcuts should use
the default clipboard, returned by passing GDK_SELECTION_CLIPBOARD for selection.
(GDK_NONE is supported as a synonym for GDK_SELECTION_CLIPBOARD
for backwards compatibility reasons.)
The currently-selected object or text should be provided on the clipboard
identified by GDK_SELECTION_PRIMARY. Cut/copy/paste menu items
conceptually copy the contents of the GDK_SELECTION_PRIMARY clipboard
to the default clipboard, i.e. they copy the selection to what the
user sees as the clipboard.
(Passing GDK_NONE is the same as using gdk_atom_intern ("CLIPBOARD", FALSE).
See the
FreeDesktop Clipboard Specification
for a detailed discussion of the “CLIPBOARD” vs. “PRIMARY”
selections under the X window system. On Win32 the
GDK_SELECTION_PRIMARY clipboard is essentially ignored.)
It’s possible to have arbitrary named clipboards; if you do invent new clipboards, you should prefix the selection name with an underscore (because the ICCCM requires that nonstandard atoms are underscore-prefixed), and namespace it as well. For example, if your application called “Foo” has a special-purpose clipboard, you might call it “_FOO_SPECIAL_CLIPBOARD”.
display
the gdk::Display for which the clipboard is to be retrieved or created.
selection
a gdk::Atom which identifies the clipboard to use.
Returns
the appropriate clipboard object. If no clipboard already exists, a new one will be created. Once a clipboard object has been created, it is persistent and, since it is owned by GTK+, must not be freed or unrefd.
sourceimpl Clipboard
impl Clipboard
pub fn set_with_data<F: Fn(&Clipboard, &SelectionData, u32) + 'static>(
&self,
targets: &[TargetEntry],
f: F
) -> bool
pub fn request_uris<P: FnOnce(&Clipboard, &[GString]) + 'static>(
&self,
callback: P
)
Trait Implementations
sourceimpl Ord for Clipboard
impl Ord for Clipboard
1.21.0 · sourceconst fn max(self, other: Self) -> Self
const fn max(self, other: Self) -> Self
1.21.0 · sourceconst fn min(self, other: Self) -> Self
const fn min(self, other: Self) -> Self
1.50.0 · sourceconst fn clamp(self, min: Self, max: Self) -> Selfwhere
Self: PartialOrd<Self>,
const fn clamp(self, min: Self, max: Self) -> Selfwhere
Self: PartialOrd<Self>,
sourceimpl ParentClassIs for Clipboard
impl ParentClassIs for Clipboard
sourceimpl<OT: ObjectType> PartialOrd<OT> for Clipboard
impl<OT: ObjectType> PartialOrd<OT> for Clipboard
sourcefn partial_cmp(&self, other: &OT) -> Option<Ordering>
fn partial_cmp(&self, other: &OT) -> Option<Ordering>
1.0.0 · sourceconst fn le(&self, other: &Rhs) -> bool
const fn le(&self, other: &Rhs) -> bool
self and other) and is used by the <=
operator. Read moresourceimpl StaticType for Clipboard
impl StaticType for Clipboard
sourcefn static_type() -> Type
fn static_type() -> Type
Self.impl Eq for Clipboard
Auto Trait Implementations
impl RefUnwindSafe for Clipboard
impl !Send for Clipboard
impl !Sync for Clipboard
impl Unpin for Clipboard
impl UnwindSafe for Clipboard
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
sourceimpl<T> Cast for Twhere
T: ObjectType,
impl<T> Cast for Twhere
T: ObjectType,
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T: ObjectType,
Self: IsA<T>,
fn upcast<T>(self) -> Twhere
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impl<T> ObjectExt for Twhere
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U: StaticType,
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&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
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&self,
signal_name: &str,
after: bool,
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signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
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fn connect_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
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&self,
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callback: F
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&self,
signal_name: &str,
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) -> SignalHandlerIdwhere
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&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
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&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
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&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
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&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
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&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
unsafe fn connect_unsafe_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
signal_id on this object. Read moresourcefn connect_closure(
&self,
signal_name: &str,
after: bool,
closure: RustClosure
) -> SignalHandlerId
fn connect_closure(
&self,
signal_name: &str,
after: bool,
closure: RustClosure
) -> SignalHandlerId
signal_name on this object. Read moresourcefn connect_closure_id(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
closure: RustClosure
) -> SignalHandlerId
fn connect_closure_id(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
closure: RustClosure
) -> SignalHandlerId
signal_id on this object. Read moresourcefn watch_closure(&self, closure: &impl AsRef<Closure>)
fn watch_closure(&self, closure: &impl AsRef<Closure>)
closure to the lifetime of the object. When
the object’s reference count drops to zero, the closure will be
invalidated. An invalidated closure will ignore any calls to
invoke_with_values, or
invoke when using Rust closures. Read moresourcefn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> Rwhere
R: TryFromClosureReturnValue,
fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> Rwhere
R: TryFromClosureReturnValue,
sourcefn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
Self::emit but takes Value for the arguments.sourcefn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> Rwhere
R: TryFromClosureReturnValue,
sourcefn emit_by_name_with_values(
&self,
signal_name: &str,
args: &[Value]
) -> Option<Value>
fn emit_by_name_with_values(
&self,
signal_name: &str,
args: &[Value]
) -> Option<Value>
sourcefn emit_by_name_with_details<R>(
&self,
signal_name: &str,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_by_name_with_details<R>(
&self,
signal_name: &str,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
sourcefn emit_by_name_with_details_and_values(
&self,
signal_name: &str,
details: Quark,
args: &[Value]
) -> Option<Value>
fn emit_by_name_with_details_and_values(
&self,
signal_name: &str,
details: Quark,
args: &[Value]
) -> Option<Value>
sourcefn emit_with_details<R>(
&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_with_details<R>(
&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
sourcefn emit_with_details_and_values(
&self,
signal_id: SignalId,
details: Quark,
args: &[Value]
) -> Option<Value>
fn emit_with_details_and_values(
&self,
signal_id: SignalId,
details: Quark,
args: &[Value]
) -> Option<Value>
sourcefn disconnect(&self, handler_id: SignalHandlerId)
fn disconnect(&self, handler_id: SignalHandlerId)
sourcefn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&T, &ParamSpec) + Send + Sync,
fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&T, &ParamSpec) + Send + Sync,
notify signal of the object. Read moresourcefn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&T, &ParamSpec),
fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&T, &ParamSpec),
notify signal of the object. Read moresourceunsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec),
unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec),
notify signal of the object. Read more