Struct wayland_client::protocol::wl_data_device_manager::DndAction

pub struct DndAction { /* fields omitted */ }

drag and drop actions

This is a bitmask of the available/preferred actions in a drag-and-drop operation.

In the compositor, the selected action is a result of matching the actions offered by the source and destination sides. "action" events with a "none" action will be sent to both source and destination if there is no match. All further checks will effectively happen on (source actions ∩ destination actions).

In addition, compositors may also pick different actions in reaction to key modifiers being pressed. One common design that is used in major toolkits (and the behavior recommended for compositors) is:

• If no modifiers are pressed, the first match (in bit order) will be used.
• Pressing Shift selects "move", if enabled in the mask.
• Pressing Control selects "copy", if enabled in the mask.

Behavior beyond that is considered implementation-dependent. Compositors may for example bind other modifiers (like Alt/Meta) or drags initiated with other buttons than BTN_LEFT to specific actions (e.g. "ask").

Methods

impl DndAction

fn empty() -> DndAction

Returns an empty set of flags.

fn all() -> DndAction

Returns the set containing all flags.

fn bits(&self) -> u32

Returns the raw value of the flags currently stored.

fn from_bits(bits: u32) -> Option<DndAction>

Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.

fn from_bits_truncate(bits: u32) -> DndAction

Convert from underlying bit representation, dropping any bits that do not correspond to flags.

fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

fn is_all(&self) -> bool

Returns true if all flags are currently set.

fn intersects(&self, other: DndAction) -> bool

Returns true if there are flags common to both self and other.

fn contains(&self, other: DndAction) -> bool

Returns true all of the flags in other are contained within self.

fn insert(&mut self, other: DndAction)

Inserts the specified flags in-place.

fn remove(&mut self, other: DndAction)

Removes the specified flags in-place.

fn toggle(&mut self, other: DndAction)

Toggles the specified flags in-place.

impl DndAction

fn from_raw(n: u32) -> Option<DndAction>

fn to_raw(&self) -> u32

Trait Implementations

impl Copy for DndAction

impl PartialEq for DndAction

fn eq(&self, __arg_0: &DndAction) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &DndAction) -> bool

This method tests for !=.

impl Eq for DndAction

impl Clone for DndAction

fn clone(&self) -> DndAction

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl PartialOrd for DndAction

fn partial_cmp(&self, __arg_0: &DndAction) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, __arg_0: &DndAction) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, __arg_0: &DndAction) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, __arg_0: &DndAction) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, __arg_0: &DndAction) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Ord for DndAction

fn cmp(&self, __arg_0: &DndAction) -> Ordering

This method returns an Ordering between self and other.

impl Hash for DndAction

fn hash<__H: Hasher>(&self, __arg_0: &mut __H)

Feeds this value into the state given, updating the hasher as necessary.

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher

Feeds a slice of this type into the state provided.

impl Debug for DndAction

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl BitOr for DndAction

type Output = DndAction

The resulting type after applying the | operator

fn bitor(self, other: DndAction) -> DndAction

Returns the union of the two sets of flags.

impl BitOrAssign for DndAction

fn bitor_assign(&mut self, other: DndAction)

Adds the set of flags.

impl BitXor for DndAction

type Output = DndAction

The resulting type after applying the ^ operator

fn bitxor(self, other: DndAction) -> DndAction

Returns the left flags, but with all the right flags toggled.

impl BitXorAssign for DndAction

fn bitxor_assign(&mut self, other: DndAction)

Toggles the set of flags.

impl BitAnd for DndAction

type Output = DndAction

The resulting type after applying the & operator

fn bitand(self, other: DndAction) -> DndAction

Returns the intersection between the two sets of flags.

impl BitAndAssign for DndAction

fn bitand_assign(&mut self, other: DndAction)

Disables all flags disabled in the set.

impl Sub for DndAction

type Output = DndAction

The resulting type after applying the - operator

fn sub(self, other: DndAction) -> DndAction

Returns the set difference of the two sets of flags.

impl SubAssign for DndAction

fn sub_assign(&mut self, other: DndAction)

Disables all flags enabled in the set.

impl Not for DndAction

type Output = DndAction

The resulting type after applying the ! operator

fn not(self) -> DndAction

Returns the complement of this set of flags.

impl Extend<DndAction> for DndAction

fn extend<T: IntoIterator<Item=DndAction>>(&mut self, iterator: T)

Extends a collection with the contents of an iterator.

impl FromIterator<DndAction> for DndAction

fn from_iter<T: IntoIterator<Item=DndAction>>(iterator: T) -> DndAction

Creates a value from an iterator.