/*
 * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */

#ifndef DO_NO_IMPORTS
import "oaidl.idl";
import "ocidl.idl";
import "IWebError.idl";
import "IWebDataSource.idl";
#endif

interface IWebError;
interface IWebDataSource;

/*!
    @protocol WebDocumentView
    @discussion Protocol implemented by the document view of WebFrameView

    @protocol WebDocumentView <NSObject>
*/
[
    object,
    oleautomation,
    uuid(0A6397A7-90FE-49a0-B9C1-44693DD779F7),
    pointer_default(unique)
]
interface IWebDocumentView : IUnknown
{
    /*!
        @method setDataSource:
        @abstract Called when the corresponding data source has been created.
        @param dataSource The corresponding data source.
        - (void)setDataSource:(WebDataSource *)dataSource;
    */
    HRESULT setDataSource([in] IWebDataSource* dataSource);

    /*!
        @method dataSourceUpdated:
        @abstract Called when the corresponding data source has received data.
        @param dataSource The corresponding data source.
        - (void)dataSourceUpdated:(WebDataSource *)dataSource;
    */
    HRESULT dataSourceUpdated([in] IWebDataSource* dataSource);

    /*!
        @method setNeedsLayout:
        @discussion Called when WebKit has determined that the document view needs to layout.
        This method should simply set a flag and call layout from drawRect if the flag is YES.
        @param flag YES to cause a layout, no to not cause a layout.
        - (void)setNeedsLayout:(BOOL)flag;
    */
    HRESULT setNeedsLayout([in] BOOL flag);

    /*!
        @method layout
        @discussion Called when the document view must immediately layout. For simple views,
        setting the frame is a sufficient implementation of this method.
        - (void)layout;
    */
    HRESULT layout();

    /*!
        @method viewWillMoveToHostWindow:
        @param hostWindow The host window for the document view.
        @abstract Called before the host window is set on the parent web view.
        - (void)viewWillMoveToHostWindow:(NSWindow *)hostWindow;
    */
    HRESULT viewWillMoveToHostWindow([in] HWND hwnd);

    /*!
        @method viewDidMoveToHostWindow
        @abstract Called after the host window is set on the parent web view.
        - (void)viewDidMoveToHostWindow;
    */
    HRESULT viewDidMoveToHostWindow();
}

/*!
    @protocol WebDocumentSearching
    @discussion Optional protocol for searching document view of WebFrameView. 
    
    @protocol WebDocumentSearching <NSObject>
*/
[
    object,
    oleautomation,
    uuid(0213643B-8DF9-4ba4-9534-61D92CB75007),
    pointer_default(unique)
]
interface IWebDocumentSearching : IUnknown
{
    /*!
        @method searchFor:direction:caseSensitive:wrap:
        @abstract Searches a document view for a string and highlights the string if it is found.
        @param string The string to search for.
        @param forward YES to search forward, NO to seach backwards.
        @param caseFlag YES to for case-sensitive search, NO for case-insensitive search.
        @param wrapFlag YES to wrap around, NO to avoid wrapping.
        @result YES if found, NO if not found.
        - (BOOL)searchFor:(NSString *)string direction:(BOOL)forward caseSensitive:(BOOL)caseFlag wrap:(BOOL)wrapFlag;
    */
    HRESULT searchFor([in] BSTR str, [in] BOOL forwardDirection, [in] BOOL caseSensitive, [in] BOOL wrap, [out, retval] BOOL* result);
}

/*!
    @protocol WebDocumentText
    @discussion Optional protocol for supporting text operations.

    @protocol WebDocumentText <NSObject>
*/
[
    object,
    oleautomation,
    uuid(B6282B92-6F31-4948-A3A0-89763C56BBBF),
    pointer_default(unique)
]
interface IWebDocumentText : IUnknown
{
    /*!
        @method supportsTextEncoding
        @result YES if the document view support text encoding, NO if it doesn't.
        - (BOOL)supportsTextEncoding;
    */
    HRESULT supportsTextEncoding([out, retval] BOOL* result);

    /*!
        @method string
        @result String that represents the entire document.
        - (NSString *)string;
    */
    HRESULT string([out, retval] BSTR* result);

    /*!
        @method selectedString
        @result String that represents the current selection.
        - (NSString *)selectedString;
    */
    HRESULT selectedString([out, retval] BSTR* result);

    /*!
        @method selectAll
        @abstract Selects all the text in the document.
        - (void)selectAll;
    */
    HRESULT selectAll();

    /*!
        @method deselectText
        @abstract Causes a text selection to lose its selection.
        - (void)deselectAll;
    */
    HRESULT deselectAll();
}

/*!
    @protocol WebDocumentRepresentation
    @discussion Protocol implemented by the document representation of a data source.

    @protocol WebDocumentRepresentation <NSObject>
*/
[
    object,
    oleautomation,
    uuid(3C9F6251-CFD8-447a-B429-6B6AE627436C),
    pointer_default(unique)
]
interface IWebDocumentRepresentation : IUnknown
{
    /*!
        @method setDataSource:
        @abstract Called soon after the document representation is created.
        @param dataSource The data source that is set.
        - (void)setDataSource:(WebDataSource *)dataSource;
    */
    HRESULT setDataSource([in] IWebDataSource* dataSource);

    /*!
        @method receivedData:withDataSource:
        @abstract Called when the data source has received data.
        @param data The data that the data source has received.
        @param dataSource The data source that has received data.
        - (void)receivedData:(NSData *)data withDataSource:(WebDataSource *)dataSource;
    */
    HRESULT receivedData([in] IStream* data, [in] IWebDataSource* dataSource);

    /*!
        @method receivedError:withDataSource:
        @abstract Called when the data source has received an error.
        @param error The error that the data source has received.
        @param dataSource The data source that has received the error.
        - (void)receivedError:(NSError *)error withDataSource:(WebDataSource *)dataSource;
    */
    HRESULT receivedError([in] IWebError* error, [in] IWebDataSource* dataSource);

    /*!
        @method finishedLoadingWithDataSource:
        @abstract Called when the data source has finished loading.
        @param dataSource The datasource that has finished loading.
        - (void)finishedLoadingWithDataSource:(WebDataSource *)dataSource;
    */
    HRESULT finishedLoadingWithDataSource([in] IWebDataSource* dataSource);

    /*!
        @method canProvideDocumentSource
        @result Returns true if the representation can provide document source.
        - (BOOL)canProvideDocumentSource;
    */
    HRESULT canProvideDocumentSource([out, retval] BOOL* result);

    /*!
        @method documentSource
        @result Returns the textual source representation of the document.  For HTML documents
        this is the original HTML source.
        - (NSString *)documentSource;
    */
    HRESULT documentSource([out, retval] BSTR* source);

    /*!
        @method title
        @result Return the title for the document.
        - (NSString *)title;
    */
    HRESULT title([out, retval] BSTR* docTitle);
}