embedding/browser/webBrowser/nsIWebBrowser.idl

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
     2  *
     3  * This Source Code Form is subject to the terms of the Mozilla Public
     4  * License, v. 2.0. If a copy of the MPL was not distributed with this
     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     7 #include "nsISupports.idl"
     9 interface nsIInterfaceRequestor;
    10 interface nsIWebBrowserChrome;
    11 interface nsIURIContentListener;
    12 interface nsIDOMWindow;
    13 interface nsIWeakReference;
    15 /**
    16  * The nsIWebBrowser interface is implemented by web browser objects.
    17  * Embedders use this interface during initialisation to associate
    18  * the new web browser instance with the embedders chrome and
    19  * to register any listeners. The interface may also be used at runtime
    20  * to obtain the content DOM window and from that the rest of the DOM.
    21  */
    22 [scriptable, uuid(33e9d001-caab-4ba9-8961-54902f197202)]
    23 interface nsIWebBrowser : nsISupports
    24 {
    25     /**
    26      * Registers a listener of the type specified by the iid to receive
    27      * callbacks. The browser stores a weak reference to the listener
    28      * to avoid any circular dependencies.
    29      * Typically this method will be called to register an object
    30      * to receive <CODE>nsIWebProgressListener</CODE> or 
    31      * <CODE>nsISHistoryListener</CODE> notifications in which case the
    32      * the IID is that of the interface.
    33      *
    34      * @param aListener The listener to be added.
    35      * @param aIID      The IID of the interface that will be called
    36      *                  on the listener as appropriate.
    37      * @return          <CODE>NS_OK</CODE> for successful registration;
    38      *                  <CODE>NS_ERROR_INVALID_ARG</CODE> if aIID is not
    39      *                  supposed to be registered using this method;
    40      *                  <CODE>NS_ERROR_FAILURE</CODE> either aListener did not
    41      *                  expose the interface specified by the IID, or some
    42      *                  other internal error occurred.
    43      *
    44      * @see removeWebBrowserListener
    45      * @see nsIWeakReference
    46      * @see nsIWebProgressListener
    47      * @see nsISHistoryListener
    48      *
    49      * @return <CODE>NS_OK</CODE>, listener was successfully added;
    50      *         <CODE>NS_ERROR_INVALID_ARG</CODE>, one of the arguments was
    51      *         invalid or the object did not implement the interface
    52      *         specified by the IID.
    53      */
    54     void addWebBrowserListener(in nsIWeakReference aListener, in nsIIDRef aIID);
    56     /**
    57      * Removes a previously registered listener.
    58      *
    59      * @param aListener The listener to be removed.
    60      * @param aIID      The IID of the interface on the listener that will
    61      *                  no longer be called.
    62      *
    63      * @return <CODE>NS_OK</CODE>, listener was successfully removed;
    64      *         <CODE>NS_ERROR_INVALID_ARG</CODE> arguments was invalid or
    65      *         the object did not implement the interface specified by the IID.
    66      *
    67      * @see addWebBrowserListener
    68      * @see nsIWeakReference
    69      */
    70     void removeWebBrowserListener(in nsIWeakReference aListener, in nsIIDRef aIID);
    72     /**
    73      * The chrome object associated with the browser instance. The embedder
    74      * must create one chrome object for <I>each</I> browser object
    75      * that is instantiated. The embedder must associate the two by setting
    76      * this property to point to the chrome object before creating the browser
    77      * window via the browser's <CODE>nsIBaseWindow</CODE> interface. 
    78      *
    79      * The chrome object must also implement <CODE>nsIEmbeddingSiteWindow</CODE>.
    80      *
    81      * The chrome may optionally implement <CODE>nsIInterfaceRequestor</CODE>,
    82      * <CODE>nsIWebBrowserChromeFocus</CODE>,
    83      * <CODE>nsIContextMenuListener</CODE> and
    84      * <CODE>nsITooltipListener</CODE> to receive additional notifications
    85      * from the browser object.
    86      *
    87      * The chrome object may optionally implement <CODE>nsIWebProgressListener</CODE> 
    88      * instead of explicitly calling <CODE>addWebBrowserListener</CODE> and
    89      * <CODE>removeWebBrowserListener</CODE> to register a progress listener
    90      * object. If the implementation does this, it must also implement
    91      * <CODE>nsIWeakReference</CODE>.
    92      * 
    93      * @note The implementation should not refcount the supplied chrome
    94      *       object; it should assume that a non <CODE>nullptr</CODE> value is
    95      *       always valid. The embedder must explicitly set this value back
    96      *       to nullptr if the chrome object is destroyed before the browser
    97      *       object.
    98      *
    99      * @see nsIBaseWindow
   100      * @see nsIWebBrowserChrome
   101      * @see nsIEmbeddingSiteWindow
   102      * @see nsIInterfaceRequestor
   103      * @see nsIWebBrowserChromeFocus
   104      * @see nsIContextMenuListener
   105      * @see nsITooltipListener
   106      * @see nsIWeakReference
   107      * @see nsIWebProgressListener
   108      */
   109     attribute nsIWebBrowserChrome containerWindow;
   111     /**
   112      * URI content listener parent. The embedder may set this property to
   113      * their own implementation if they intend to override or prevent
   114      * how certain kinds of content are loaded.
   115      *
   116      * @note If this attribute is set to an object that implements
   117      *       nsISupportsWeakReference, the implementation should get the
   118      *       nsIWeakReference and hold that.  Otherwise, the implementation
   119      *       should not refcount this interface; it should assume that a non
   120      *       null value is always valid.  In that case, the embedder should
   121      *       explicitly set this value back to null if the parent content
   122      *       listener is destroyed before the browser object.
   123      *
   124      * @see nsIURIContentListener
   125      */
   126     attribute nsIURIContentListener parentURIContentListener;
   128     /**
   129      * The top-level DOM window. The embedder may walk the entire
   130      * DOM starting from this value.
   131      *
   132      * @see nsIDOMWindow
   133      */
   134     readonly attribute nsIDOMWindow contentDOMWindow;
   136     /**
   137      * Whether this web browser is active. Active means that it's visible
   138      * enough that we want to avoid certain optimizations like discarding
   139      * decoded image data and throttling the refresh driver. In Firefox,
   140      * this corresponds to the visible tab.
   141      *
   142      * Defaults to true. For optimal performance, set it to false when
   143      * appropriate.
   144      */
   145     attribute boolean isActive;
   146 };

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