Struct xpcom::interfaces::nsILayoutHistoryState

#[repr(C)]
pub struct nsILayoutHistoryState { /* fields omitted */ }

interface nsILayoutHistoryState : nsISupports

Methods

impl nsILayoutHistoryState

pub fn coerce<T: nsILayoutHistoryStateCoerce>(&self) -> &T

Cast this nsILayoutHistoryState to one of its base interfaces.

impl nsILayoutHistoryState

pub unsafe fn GetHasStates(&self, aHasStates: *mut bool) -> nsresult

/**
  * Whether this LayoutHistoryState contains any PresStates.
  */

readonly attribute boolean hasStates;

pub unsafe fn GetKeys(
    &self,
    aCount: *mut uint32_t,
    aKeys: *mut *mut *const c_char
) -> nsresult

/**
  * Get the keys of all PresStates held by this LayoutHistoryState.
  * Note: Check hasStates first.
  */

void getKeys ([optional] out uint32_t aCount, [array, size_is (aCount), retval] out string aKeys);

pub unsafe fn GetPresState(
    &self,
    aKey: &nsACString,
    aScrollX: *mut c_float,
    aScrollY: *mut c_float,
    aAllowScrollOriginDowngrade: *mut bool,
    aRes: *mut c_float,
    aScaleToRes: *mut bool
) -> nsresult

void getPresState (in ACString aKey, out float aScrollX, out float aScrollY, out boolean aAllowScrollOriginDowngrade, out float aRes, out boolean aScaleToRes);

pub unsafe fn AddNewPresState(
    &self,
    aKey: &nsACString,
    aScrollX: c_float,
    aScrollY: c_float,
    aAllowScrollOriginDowngrade: bool,
    aRes: c_float,
    aScaleToRes: bool
) -> nsresult

/**
   * Constructs a new nsPresState object based on the supplied data
   * and adds it to the LayoutHistoryState.
   */

void addNewPresState (in ACString aKey, in float aScrollX, in float aScrollY, in boolean aAllowScrollOriginDowngrade, in float aRes, in boolean aScaleToRes);

Methods from Deref<Target = nsISupports>

pub fn coerce<T: nsISupportsCoerce>(&self) -> &T

Cast this nsISupports to one of its base interfaces.

pub unsafe fn QueryInterface(
    &self,
    uuid: &nsIID,
    result: *mut *mut c_void
) -> nsresult

void QueryInterface (in nsIIDRef uuid, [iid_is (uuid), retval] out nsQIResult result);

pub unsafe fn AddRef(&self) -> nsrefcnt

[noscript,notxpcom] nsrefcnt AddRef ();

pub unsafe fn Release(&self) -> nsrefcnt

[noscript,notxpcom] nsrefcnt Release ();

Trait Implementations

impl XpCom for nsILayoutHistoryState

const IID: nsIID

IID: nsIID = nsID(2935127219, 19961, 20203, [176, 176, 172, 86, 207, 134, 29, 4])

fn query_interface<T: XpCom>(&self) -> Option<RefPtr<T>>

Perform a QueryInterface call on this object, attempting to dynamically cast it to the requested interface type. Returns Some(RefPtr) if the cast succeeded, and None otherwise.

impl RefCounted for nsILayoutHistoryState

unsafe fn addref(&self)

Increment the reference count.

unsafe fn release(&self)

Decrement the reference count, potentially freeing backing memory.

impl Deref for nsILayoutHistoryState

type Target = nsISupports

The resulting type after dereferencing.

fn deref(&self) -> &nsISupports

Dereferences the value.