Struct xpcom::interfaces::nsIWebProgressListener [] [src]

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

interface nsIWebProgressListener : nsISupports

/**
 * The nsIWebProgressListener interface is implemented by clients wishing to
 * listen in on the progress associated with the loading of asynchronous
 * requests in the context of a nsIWebProgress instance as well as any child
 * nsIWebProgress instances.  nsIWebProgress.idl describes the parent-child
 * relationship of nsIWebProgress instances.
 */

Methods

impl nsIWebProgressListener
[src]

[src]

Cast this nsIWebProgressListener to one of its base interfaces.

impl nsIWebProgressListener
[src]

STATE_START: i64 = 1
/**
   * State Transition Flags
   *
   * These flags indicate the various states that requests may transition
   * through as they are being loaded.  These flags are mutually exclusive.
   *
   * For any given request, onStateChange is called once with the STATE_START
   * flag, zero or more times with the STATE_TRANSFERRING flag or once with the
   * STATE_REDIRECTING flag, and then finally once with the STATE_STOP flag.
   * NOTE: For document requests, a second STATE_STOP is generated (see the
   * description of STATE_IS_WINDOW for more details).
   *
   * STATE_START
   *   This flag indicates the start of a request.  This flag is set when a
   *   request is initiated.  The request is complete when onStateChange is
   *   called for the same request with the STATE_STOP flag set.
   *
   * STATE_REDIRECTING
   *   This flag indicates that a request is being redirected.  The request
   *   passed to onStateChange is the request that is being redirected.  When a
   *   redirect occurs, a new request is generated automatically to process the
   *   new request.  Expect a corresponding STATE_START event for the new
   *   request, and a STATE_STOP for the redirected request.
   *
   * STATE_TRANSFERRING
   *   This flag indicates that data for a request is being transferred to an
   *   end consumer.  This flag indicates that the request has been targeted,
   *   and that the user may start seeing content corresponding to the request.
   *
   * STATE_NEGOTIATING
   *   This flag is not used.
   *
   * STATE_STOP
   *   This flag indicates the completion of a request.  The aStatus parameter
   *   to onStateChange indicates the final status of the request.
   */

STATE_REDIRECTING: i64 = 2

STATE_TRANSFERRING: i64 = 4

STATE_NEGOTIATING: i64 = 8

STATE_STOP: i64 = 16

STATE_IS_REQUEST: i64 = 65536
/**
   * State Type Flags
   *
   * These flags further describe the entity for which the state transition is
   * occuring.  These flags are NOT mutually exclusive (i.e., an onStateChange
   * event may indicate some combination of these flags).
   *
   * STATE_IS_REQUEST
   *   This flag indicates that the state transition is for a request, which
   *   includes but is not limited to document requests.  (See below for a
   *   description of document requests.)  Other types of requests, such as
   *   requests for inline content (e.g., images and stylesheets) are
   *   considered normal requests.
   *
   * STATE_IS_DOCUMENT
   *   This flag indicates that the state transition is for a document request.
   *   This flag is set in addition to STATE_IS_REQUEST.  A document request
   *   supports the nsIChannel interface and its loadFlags attribute includes
   *   the nsIChannel::LOAD_DOCUMENT_URI flag.
   *
   *   A document request does not complete until all requests associated with
   *   the loading of its corresponding document have completed.  This includes
   *   other document requests (e.g., corresponding to HTML <iframe> elements).
   *   The document corresponding to a document request is available via the
   *   DOMWindow attribute of onStateChange's aWebProgress parameter.
   *
   * STATE_IS_NETWORK
   *   This flag indicates that the state transition corresponds to the start
   *   or stop of activity in the indicated nsIWebProgress instance.  This flag
   *   is accompanied by either STATE_START or STATE_STOP, and it may be
   *   combined with other State Type Flags.
   *
   *   Unlike STATE_IS_WINDOW, this flag is only set when activity within the
   *   nsIWebProgress instance being observed starts or stops.  If activity
   *   only occurs in a child nsIWebProgress instance, then this flag will be
   *   set to indicate the start and stop of that activity.
   *
   *   For example, in the case of navigation within a single frame of a HTML
   *   frameset, a nsIWebProgressListener instance attached to the
   *   nsIWebProgress of the frameset window will receive onStateChange calls
   *   with the STATE_IS_NETWORK flag set to indicate the start and stop of
   *   said navigation.  In other words, an observer of an outer window can
   *   determine when activity, that may be constrained to a child window or
   *   set of child windows, starts and stops.
   *
   * STATE_IS_WINDOW
   *   This flag indicates that the state transition corresponds to the start
   *   or stop of activity in the indicated nsIWebProgress instance.  This flag
   *   is accompanied by either STATE_START or STATE_STOP, and it may be
   *   combined with other State Type Flags.
   *
   *   This flag is similar to STATE_IS_DOCUMENT.  However, when a document
   *   request completes, two onStateChange calls with STATE_STOP are
   *   generated.  The document request is passed as aRequest to both calls.
   *   The first has STATE_IS_REQUEST and STATE_IS_DOCUMENT set, and the second
   *   has the STATE_IS_WINDOW flag set (and possibly the STATE_IS_NETWORK flag
   *   set as well -- see above for a description of when the STATE_IS_NETWORK
   *   flag may be set).  This second STATE_STOP event may be useful as a way
   *   to partition the work that occurs when a document request completes.
   *
   * STATE_IS_REDIRECTED_DOCUMENT
   *  Same as STATE_IS_DOCUMENT, but sent only after a redirect has occured.
   *  Introduced in order not to confuse existing code with extra state change
   *  events. See |nsDocLoader::OnStartRequest| for more info.
   */

STATE_IS_DOCUMENT: i64 = 131072

STATE_IS_NETWORK: i64 = 262144

STATE_IS_WINDOW: i64 = 524288

STATE_IS_REDIRECTED_DOCUMENT: i64 = 1048576

STATE_RESTORING: i64 = 16777216
/**
   * State Modifier Flags
   *
   * These flags further describe the transition which is occuring.  These
   * flags are NOT mutually exclusive (i.e., an onStateChange event may
   * indicate some combination of these flags).
   *
   * STATE_RESTORING
   *   This flag indicates that the state transition corresponds to the start
   *   or stop of activity for restoring a previously-rendered presentation.
   *   As such, there is no actual network activity associated with this
   *   request, and any modifications made to the document or presentation
   *   when it was originally loaded will still be present.
   */

STATE_IS_INSECURE: i64 = 4
/**
   * State Security Flags
   *
   * These flags describe the security state reported by a call to the
   * onSecurityChange method.  These flags are mutually exclusive.
   *
   * STATE_IS_INSECURE
   *   This flag indicates that the data corresponding to the request
   *   was received over an insecure channel.
   *
   * STATE_IS_BROKEN
   *   This flag indicates an unknown security state.  This may mean that the
   *   request is being loaded as part of a page in which some content was
   *   received over an insecure channel.
   *
   * STATE_IS_SECURE
   *   This flag indicates that the data corresponding to the request was
   *   received over a secure channel.  The degree of security is expressed by
   *   STATE_SECURE_HIGH, STATE_SECURE_MED, or STATE_SECURE_LOW.
   */

STATE_IS_BROKEN: i64 = 1

STATE_IS_SECURE: i64 = 2

STATE_BLOCKED_MIXED_ACTIVE_CONTENT: i64 = 16
/**
   * Mixed active content flags
   *
   * May be set in addition to the State Security Flags, to indicate that
   * mixed active content has been encountered.
   *
   * STATE_BLOCKED_MIXED_ACTIVE_CONTENT
   *   Mixed active content has been blocked from loading.
   *
   * STATE_LOADED_MIXED_ACTIVE_CONTENT
   *   Mixed active content has been loaded. State should be STATE_IS_BROKEN.
   */

STATE_LOADED_MIXED_ACTIVE_CONTENT: i64 = 32

STATE_BLOCKED_MIXED_DISPLAY_CONTENT: i64 = 256
/**
   * Mixed display content flags
   *
   * May be set in addition to the State Security Flags, to indicate that
   * mixed display content has been encountered.
   *
   * STATE_BLOCKED_MIXED_DISPLAY_CONTENT
   *   Mixed display content has been blocked from loading.
   *
   * STATE_LOADED_MIXED_DISPLAY_CONTENT
   *   Mixed display content has been loaded. State should be STATE_IS_BROKEN.
   */

STATE_LOADED_MIXED_DISPLAY_CONTENT: i64 = 512

STATE_BLOCKED_TRACKING_CONTENT: i64 = 4096
/**
   *  Safe Browsing blocking content flags
   *
   * May be set in addition to the State security Flags, to indicate that
   * tracking or unsafe content has been encountered.
   *
   * STATE_BLOCKED_TRACKING_CONTENT
   *   Tracking content has been blocked from loading.
   *
   * STATE_LOADED_TRACKING_CONTENT
   *   Tracking content has been loaded.
   *
   * STATE_BLOCKED_UNSAFE_CONTENT
   *   Content which againts SafeBrowsing list has been blocked from loading.
   */

STATE_LOADED_TRACKING_CONTENT: i64 = 8192

STATE_BLOCKED_UNSAFE_CONTENT: i64 = 16384

STATE_CERT_DISTRUST_IMMINENT: i64 = 32768
/**
   * Diagnostic flags
   *
   * May be set in addition to other security state flags to indicate that
   * some state is countered that deserves a warning or error, but does not
   * change the top level security state of the connection.
   *
   * STATE_CERT_DISTRUST_IMMINENT
   *   The certificate in use will be distrusted in the near future.
   */

STATE_SECURE_HIGH: i64 = 262144
/**
   * Security Strength Flags
   *
   * These flags describe the security strength and accompany STATE_IS_SECURE
   * in a call to the onSecurityChange method.  These flags are mutually
   * exclusive.
   *
   * These flags are not meant to provide a precise description of data
   * transfer security.  These are instead intended as a rough indicator that
   * may be used to, for example, color code a security indicator or otherwise
   * provide basic data transfer security feedback to the user.
   *
   * STATE_SECURE_HIGH
   *   This flag indicates a high degree of security.
   *
   * STATE_SECURE_MED
   *   This flag indicates a medium degree of security.
   *
   * STATE_SECURE_LOW
   *   This flag indicates a low degree of security.
   */

STATE_SECURE_MED: i64 = 65536

STATE_SECURE_LOW: i64 = 131072

STATE_IDENTITY_EV_TOPLEVEL: i64 = 1048576
/**
    * State bits for EV == Extended Validation == High Assurance
    *
    * These flags describe the level of identity verification
    * in a call to the onSecurityChange method.
    *
    * STATE_IDENTITY_EV_TOPLEVEL
    *   The topmost document uses an EV cert.
    *   NOTE: Available since Gecko 1.9
    */

STATE_USES_SSL_3: i64 = 16777216
/**
    * Broken state flags
    *
    * These flags describe the reason of the broken state.
    *
    * STATE_USES_SSL_3
    *   The topmost document uses SSL 3.0.
    *
    * STATE_USES_WEAK_CRYPTO
    *   The topmost document uses a weak cipher suite such as RC4.
    *
    * STATE_CERT_USER_OVERRIDDEN
    *   The user has added a security exception for the site.
    */

STATE_USES_WEAK_CRYPTO: i64 = 33554432

STATE_CERT_USER_OVERRIDDEN: i64 = 67108864

LOCATION_CHANGE_SAME_DOCUMENT: i64 = 1
/**
   * Flags for onLocationChange
   *
   * LOCATION_CHANGE_SAME_DOCUMENT
   *   This flag is on when |aWebProgress| did not load a new document.
   *   For example, the location change is due to an anchor scroll or a
   *   pushState/popState/replaceState.
   *
   * LOCATION_CHANGE_ERROR_PAGE
   *   This flag is on when |aWebProgress| redirected from the requested
   *   contents to an internal page to show error status, such as
   *   <about:neterror>, <about:certerror> and so on.
   *
   *   Generally speaking, |aURI| and |aRequest| are the original data. DOM
   *   |window.location.href| is also the original location, while
   *   |document.documentURI| is the redirected location. Sometimes |aURI| is
   *   <about:blank> and |aRequest| is null when the original data does not
   +   remain.
   *
   *   |aWebProgress| does NOT set this flag when it did not try to load a new
   *   document. In this case, it should set LOCATION_CHANGE_SAME_DOCUMENT.
   */

LOCATION_CHANGE_ERROR_PAGE: i64 = 2

[src]

/**
   * Notification indicating the state has changed for one of the requests
   * associated with aWebProgress.
   *
   * @param aWebProgress
   *        The nsIWebProgress instance that fired the notification
   * @param aRequest
   *        The nsIRequest that has changed state.
   * @param aStateFlags
   *        Flags indicating the new state.  This value is a combination of one
   *        of the State Transition Flags and one or more of the State Type
   *        Flags defined above.  Any undefined bits are reserved for future
   *        use.
   * @param aStatus
   *        Error status code associated with the state change.  This parameter
   *        should be ignored unless aStateFlags includes the STATE_STOP bit.
   *        The status code indicates success or failure of the request
   *        associated with the state change.  NOTE: aStatus may be a success
   *        code even for server generated errors, such as the HTTP 404 error.
   *        In such cases, the request itself should be queried for extended
   *        error information (e.g., for HTTP requests see nsIHttpChannel).
   */

void onStateChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in unsigned long aStateFlags, in nsresult aStatus);

[src]

/**
   * Notification that the progress has changed for one of the requests
   * associated with aWebProgress.  Progress totals are reset to zero when all
   * requests in aWebProgress complete (corresponding to onStateChange being
   * called with aStateFlags including the STATE_STOP and STATE_IS_WINDOW
   * flags).
   *
   * @param aWebProgress
   *        The nsIWebProgress instance that fired the notification.
   * @param aRequest
   *        The nsIRequest that has new progress.
   * @param aCurSelfProgress
   *        The current progress for aRequest.
   * @param aMaxSelfProgress
   *        The maximum progress for aRequest.
   * @param aCurTotalProgress
   *        The current progress for all requests associated with aWebProgress.
   * @param aMaxTotalProgress
   *        The total progress for all requests associated with aWebProgress.
   *
   * NOTE: If any progress value is unknown, or if its value would exceed the
   * maximum value of type long, then its value is replaced with -1.
   *
   * NOTE: If the object also implements nsIWebProgressListener2 and the caller
   * knows about that interface, this function will not be called. Instead,
   * nsIWebProgressListener2::onProgressChange64 will be called.
   */

void onProgressChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in long aCurSelfProgress, in long aMaxSelfProgress, in long aCurTotalProgress, in long aMaxTotalProgress);

[src]

/**
   * Called when the location of the window being watched changes.  This is not
   * when a load is requested, but rather once it is verified that the load is
   * going to occur in the given window.  For instance, a load that starts in a
   * window might send progress and status messages for the new site, but it
   * will not send the onLocationChange until we are sure that we are loading
   * this new page here.
   *
   * @param aWebProgress
   *        The nsIWebProgress instance that fired the notification.
   * @param aRequest
   *        The associated nsIRequest.  This may be null in some cases.
   * @param aLocation
   *        The URI of the location that is being loaded.
   * @param aFlags
   *        This is a value which explains the situation or the reason why
   *        the location has changed.
   */

void onLocationChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in nsIURI aLocation, [optional] in unsigned long aFlags);

[src]

/**
   * Notification that the status of a request has changed.  The status message
   * is intended to be displayed to the user (e.g., in the status bar of the
   * browser).
   *
   * @param aWebProgress
   *        The nsIWebProgress instance that fired the notification.
   * @param aRequest
   *        The nsIRequest that has new status.
   * @param aStatus
   *        This value is not an error code.  Instead, it is a numeric value
   *        that indicates the current status of the request.  This interface
   *        does not define the set of possible status codes.  NOTE: Some
   *        status values are defined by nsITransport and nsISocketTransport.
   * @param aMessage
   *        Localized text corresponding to aStatus.
   */

void onStatusChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in nsresult aStatus, in wstring aMessage);

[src]

/**
   * Notification called for security progress.  This method will be called on
   * security transitions (eg HTTP -> HTTPS, HTTPS -> HTTP, FOO -> HTTPS) and
   * after document load completion.  It might also be called if an error
   * occurs during network loading.
   *
   * @param aWebProgress
   *        The nsIWebProgress instance that fired the notification.
   * @param aRequest
   *        The nsIRequest that has new security state.
   * @param aState
   *        A value composed of the Security State Flags and the Security
   *        Strength Flags listed above.  Any undefined bits are reserved for
   *        future use.
   *
   * NOTE: These notifications will only occur if a security package is
   * installed.
   */

void onSecurityChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in unsigned long aState);

Methods from Deref<Target = nsISupports>

[src]

Cast this nsISupports to one of its base interfaces.

[src]

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

[src]

[noscript,notxpcom] nsrefcnt AddRef ();

[src]

[noscript,notxpcom] nsrefcnt Release ();

Trait Implementations

impl XpCom for nsIWebProgressListener
[src]

IID: nsIID = nsID(2849985083, 61410, 16926, [157, 142, 61, 127, 128, 125, 218, 76])

[src]

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. Read more

impl RefCounted for nsIWebProgressListener
[src]

[src]

Increment the reference count.

[src]

Decrement the reference count, potentially freeing backing memory.

impl Deref for nsIWebProgressListener
[src]

The resulting type after dereferencing.

[src]

Dereferences the value.