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`

`const None: DndAction`

None: DndAction = DndAction{bits: 0,}

no action

`const Copy: DndAction`

Copy: DndAction = DndAction{bits: 1,}

copy action

`const Move: DndAction`

Move: DndAction = DndAction{bits: 2,}

move action

`const Ask: DndAction`

Ask: DndAction = DndAction{bits: 4,}

ask action

`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.

`fn set(&mut self, other: DndAction, value: bool)`

Inserts or removes the specified flags depending on the passed value.

`impl DndAction`
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`fn from_raw(n: u32) -> Option<DndAction>`
[src]

`fn to_raw(&self) -> u32`
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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 ==. Read more

`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. Read more

`fn clone_from(&mut self, source: &Self)`
1.0.0
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Performs copy-assignment from source. Read more

`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. Read more

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

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

`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. Read more

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

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

`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. Read more

`impl Ord for DndAction`

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

This method returns an Ordering between self and other. Read more

`fn max(self, other: Self) -> Self`
1.22.0
[src]

Compares and returns the maximum of two values. Read more

`fn min(self, other: Self) -> Self`
1.22.0
[src]

Compares and returns the minimum of two values. Read more

`impl Hash for DndAction`

`fn hash<H: Hasher>(&self, arg_0: &mut __H)`

Feeds this value into the given [Hasher]. Read more