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      1 /*
      2  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc.  All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef DO_NO_IMPORTS
     27 import "oaidl.idl";
     28 import "ocidl.idl";
     29 import "IWebScriptObject.idl";
     30 import "IWebView.idl";
     31 import "IWebFrame.idl";
     32 import "JavaScriptCoreAPITypes.idl";
     33 #endif
     34 
     35 interface IWebError;
     36 interface IWebFrame;
     37 interface IWebScriptObject;
     38 interface IWebView;
     39 
     40 /*!
     41     @category WebFrameLoadDelegate
     42     @discussion A WebView's WebFrameLoadDelegate tracks the loading progress of its frames.
     43     When a data source of a frame starts to load, the data source is considered "provisional".
     44     Once at least one byte is received, the data source is considered "committed". This is done
     45     so the contents of the frame will not be lost if the new data source fails to successfully load.
     46     @interface NSObject (WebFrameLoadDelegate)
     47 */
     48 
     49 [
     50     object,
     51     oleautomation,
     52     uuid(3354665B-84BA-4fdf-B35E-BF5CF9D96026),
     53     pointer_default(unique)
     54 ]
     55 interface IWebFrameLoadDelegate : IUnknown
     56 {
     57     /*!
     58         @method webView:didStartProvisionalLoadForFrame:
     59         @abstract Notifies the delegate that the provisional load of a frame has started
     60         @param webView The WebView sending the message
     61         @param frame The frame for which the provisional load has started
     62         @discussion This method is called after the provisional data source of a frame
     63         has started to load.
     64         - (void)webView:(WebView *)sender didStartProvisionalLoadForFrame:(WebFrame *)frame;
     65     */
     66     HRESULT didStartProvisionalLoadForFrame([in] IWebView* webView, [in] IWebFrame* frame);
     67 
     68     /*!
     69         @method webView:didReceiveServerRedirectForProvisionalLoadForFrame:
     70         @abstract Notifies the delegate that a server redirect occurred during the provisional load
     71         @param webView The WebView sending the message
     72         @param frame The frame for which the redirect occurred
     73         - (void)webView:(WebView *)sender didReceiveServerRedirectForProvisionalLoadForFrame:(WebFrame *)frame;
     74     */
     75     HRESULT didReceiveServerRedirectForProvisionalLoadForFrame([in] IWebView* webView, [in] IWebFrame* frame);
     76 
     77     /*!
     78         @method webView:didFailProvisionalLoadWithError:forFrame:
     79         @abstract Notifies the delegate that the provisional load has failed
     80         @param webView The WebView sending the message
     81         @param error The error that occurred
     82         @param frame The frame for which the error occurred
     83         @discussion This method is called after the provisional data source has failed to load.
     84         The frame will continue to display the contents of the committed data source if there is one.
     85         - (void)webView:(WebView *)sender didFailProvisionalLoadWithError:(NSError *)error forFrame:(WebFrame *)frame;
     86     */
     87     HRESULT didFailProvisionalLoadWithError([in] IWebView* webView, [in] IWebError* error, [in] IWebFrame* frame);
     88 
     89     /*!
     90         @method webView:didCommitLoadForFrame:
     91         @abstract Notifies the delegate that the load has changed from provisional to committed
     92         @param webView The WebView sending the message
     93         @param frame The frame for which the load has committed
     94         @discussion This method is called after the provisional data source has become the
     95         committed data source.
     96 
     97         In some cases, a single load may be committed more than once. This happens
     98         in the case of multipart/x-mixed-replace, also known as "server push". In this case,
     99         a single location change leads to multiple documents that are loaded in sequence. When
    100         this happens, a new commit will be sent for each document.
    101         - (void)webView:(WebView *)sender didCommitLoadForFrame:(WebFrame *)frame;
    102     */
    103     HRESULT didCommitLoadForFrame([in] IWebView* webView, [in] IWebFrame* frame);
    104 
    105     /*!
    106         @method webView:didReceiveTitle:forFrame:
    107         @abstract Notifies the delegate that the page title for a frame has been received
    108         @param webView The WebView sending the message
    109         @param title The new page title
    110         @param frame The frame for which the title has been received
    111         @discussion The title may update during loading; clients should be prepared for this.
    112         - (void)webView:(WebView *)sender didReceiveTitle:(NSString *)title forFrame:(WebFrame *)frame;
    113     */
    114     HRESULT didReceiveTitle([in] IWebView* webView, [in] BSTR title, [in] IWebFrame* frame);
    115 
    116     /*!
    117         @method webView:didReceiveIcon:forFrame:
    118         @abstract Notifies the delegate that a page icon image for a frame has been received
    119         @param webView The WebView sending the message
    120         @param image The icon image. Also known as a "favicon".
    121         @param frame The frame for which a page icon has been received
    122         - (void)webView:(WebView *)sender didReceiveIcon:(NSImage *)image forFrame:(WebFrame *)frame;
    123     */
    124     HRESULT didReceiveIcon([in] IWebView* webView, [in] OLE_HANDLE hBitmap, [in] IWebFrame* frame);
    125 
    126     /*!
    127         @method webView:didFinishLoadForFrame:
    128         @abstract Notifies the delegate that the committed load of a frame has completed
    129         @param webView The WebView sending the message
    130         @param frame The frame that finished loading
    131         @discussion This method is called after the committed data source of a frame has successfully loaded
    132         and will only be called when all subresources such as images and stylesheets are done loading.
    133         Plug-In content and JavaScript-requested loads may occur after this method is called.
    134         - (void)webView:(WebView *)sender didFinishLoadForFrame:(WebFrame *)frame;
    135     */
    136     HRESULT didFinishLoadForFrame([in] IWebView* webView, [in] IWebFrame* frame);
    137 
    138     /*!
    139         @method webView:didFailLoadWithError:forFrame:
    140         @abstract Notifies the delegate that the committed load of a frame has failed
    141         @param webView The WebView sending the message
    142         @param error The error that occurred
    143         @param frame The frame that failed to load
    144         @discussion This method is called after a data source has committed but failed to completely load.
    145         - (void)webView:(WebView *)sender didFailLoadWithError:(NSError *)error forFrame:(WebFrame *)frame;
    146     */
    147     HRESULT didFailLoadWithError([in] IWebView* webView, [in] IWebError* error, [in] IWebFrame* forFrame);
    148 
    149     /*!
    150         @method webView:didChangeLocationWithinPageForFrame:
    151         @abstract Notifies the delegate that the scroll position in a frame has changed
    152         @param webView The WebView sending the message
    153         @param frame The frame that scrolled
    154         @discussion This method is called when anchors within a page have been clicked.
    155         - (void)webView:(WebView *)sender didChangeLocationWithinPageForFrame:(WebFrame *)frame;
    156     */
    157     HRESULT didChangeLocationWithinPageForFrame([in] IWebView* webView, [in] IWebFrame* frame);
    158 
    159     /*!
    160         @method webView:willPerformClientRedirectToURL:delay:fireDate:forFrame:
    161         @abstract Notifies the delegate that a frame will perform a client-side redirect
    162         @param webView The WebView sending the message
    163         @param URL The URL to be redirected to
    164         @param seconds Seconds in which the redirect will happen
    165         @param date The fire date
    166         @param frame The frame on which the redirect will occur
    167         @discussion This method can be used to continue progress feedback while a client-side
    168         redirect is pending.
    169         - (void)webView:(WebView *)sender willPerformClientRedirectToURL:(NSURL *)URL delay:(NSTimeInterval)seconds fireDate:(NSDate *)date forFrame:(WebFrame *)frame;
    170     */
    171     HRESULT willPerformClientRedirectToURL([in] IWebView* webView, [in] BSTR url, [in] double delaySeconds, [in] DATE fireDate, [in] IWebFrame* frame);
    172 
    173     /*!
    174         @method webView:didCancelClientRedirectForFrame:
    175         @abstract Notifies the delegate that a pending client-side redirect has been cancelled
    176         @param webView The WebView sending the message
    177         @param frame The frame for which the pending redirect was cancelled
    178         @discussion A client-side redirect can be cancelled if a frame changes location before the timeout.
    179         - (void)webView:(WebView *)sender didCancelClientRedirectForFrame:(WebFrame *)frame;
    180     */
    181     HRESULT didCancelClientRedirectForFrame([in] IWebView* webView, [in] IWebFrame* frame);
    182 
    183     /*!
    184         @method webView:willCloseFrame:
    185         @abstract Notifies the delegate that a frame will be closed
    186         @param webView The WebView sending the message
    187         @param frame The frame that will be closed
    188         @discussion This method is called right before WebKit is done with the frame
    189         and the objects that it contains.
    190         - (void)webView:(WebView *)sender willCloseFrame:(WebFrame *)frame;
    191     */
    192     HRESULT willCloseFrame([in] IWebView* webView, [in] IWebFrame* frame);
    193 
    194     /*!
    195         @method webView:windowScriptObjectAvailable:
    196         @abstract Notifies the delegate that the scripting object for a page is available.  This is called
    197         before the page is loaded.  It may be useful to allow delegates to bind native objects to the window.
    198         @param webView The webView sending the message.
    199         @param windowScriptObject The WebScriptObject for the window in the scripting environment.
    200         - (void)webView:(WebView *)webView windowScriptObjectAvailable:(WebScriptObject *)windowScriptObject;
    201     */
    202     [local] HRESULT windowScriptObjectAvailable([in] IWebView* webView, [in] JSContextRef context, [in] JSObjectRef windowScriptObject);
    203 
    204     [local] HRESULT didClearWindowObject([in] IWebView* webView, [in] JSContextRef context, [in] JSObjectRef windowScriptObject, [in] IWebFrame* frame);
    205 }
    206