Struct xpcom::interfaces::nsIWebNavigationInfo

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

interface nsIWebNavigationInfo : nsISupports

/**
 * The nsIWebNavigationInfo interface exposes a way to get information
 * on the capabilities of Gecko webnavigation objects.
 */

Methods

impl nsIWebNavigationInfo

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

Cast this nsIWebNavigationInfo to one of its base interfaces.

impl nsIWebNavigationInfo

pub const UNSUPPORTED: i64

UNSUPPORTED: i64 = 0

/**
   * Returned by isTypeSupported to indicate lack of support for a type.
   * @note this is guaranteed not to change, so that boolean tests can be done
   * on the return value if isTypeSupported to detect whether a type is
   * supported at all.
   */

pub const IMAGE: i64

IMAGE: i64 = 1

/**
   * Returned by isTypeSupported to indicate that a type is supported as an
   * image.
   */

pub const PLUGIN: i64

PLUGIN: i64 = 2

/**
   * Returned by isTypeSupported to indicate that a type is supported via an
   * NPAPI ("Netscape 4 API") plug-in.  This is not the value returned for
   * "XPCOM plug-ins".
   */

pub const OTHER: i64

OTHER: i64 = 32768

/**
   * @note Other return types may be added here in the future as they become
   * relevant.
   */
/**
   * Returned by isTypeSupported to indicate that a type is supported via some
   * other means.
   */

pub unsafe fn IsTypeSupported(
    &self,
    aType: &nsACString,
    aWebNav: *const nsIWebNavigation,
    _retval: *mut uint32_t
) -> nsresult

/**
   * Query whether aType is supported.
   * @param aType the MIME type in question.
   * @param aWebNav the nsIWebNavigation object for which the request
   *        is being made.  This is allowed to be null.  If it is non-null,
   *        the return value of this method may depend on the exact state of
   *        aWebNav and the values set through nsIWebBrowserSetup; otherwise
   *        the method will assume that the caller is interested in information
   *        about nsIWebNavigation objects in their default state.
   * @return an enum value indicating whether and how aType is supported.
   * @note This method may rescan plugins to ensure that they're properly
   *       registered for the types they support.
   */

unsigned long isTypeSupported (in ACString aType, in nsIWebNavigation aWebNav);

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 nsIWebNavigationInfo

const IID: nsIID

IID: nsIID = nsID(1655257851, 37793, 18012, [132, 200, 4, 50, 38, 66, 41, 222])

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 nsIWebNavigationInfo

unsafe fn addref(&self)

Increment the reference count.

unsafe fn release(&self)

Decrement the reference count, potentially freeing backing memory.

impl Deref for nsIWebNavigationInfo

type Target = nsISupports

The resulting type after dereferencing.

fn deref(&self) -> &nsISupports

Dereferences the value.