webengine/osswebengine/WebKit/WebView/WebDocument.h
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     1 /*
       
     2  * Copyright (C) 2003, 2004, 2005 Apple Computer, 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  *
       
     8  * 1.  Redistributions of source code must retain the above copyright
       
     9  *     notice, this list of conditions and the following disclaimer. 
       
    10  * 2.  Redistributions in binary form must reproduce the above copyright
       
    11  *     notice, this list of conditions and the following disclaimer in the
       
    12  *     documentation and/or other materials provided with the distribution. 
       
    13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
       
    14  *     its contributors may be used to endorse or promote products derived
       
    15  *     from this software without specific prior written permission. 
       
    16  *
       
    17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
       
    18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
       
    19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
       
    20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
       
    21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
       
    22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
       
    23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
       
    24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
       
    25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
       
    26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
       
    27  */
       
    28 
       
    29 #import <Cocoa/Cocoa.h>
       
    30 
       
    31 @class NSError;
       
    32 @class WebDataSource;
       
    33 
       
    34 /*!
       
    35     @protocol WebDocumentView
       
    36     @discussion Protocol implemented by the document view of WebFrameView
       
    37 */
       
    38 @protocol WebDocumentView <NSObject>
       
    39 
       
    40 /*!
       
    41     @method setDataSource:
       
    42     @abstract Called when the corresponding data source has been created.
       
    43     @param dataSource The corresponding data source.
       
    44 */
       
    45 - (void)setDataSource:(WebDataSource *)dataSource;
       
    46 
       
    47 /*!
       
    48     @method dataSourceUpdated:
       
    49     @abstract Called when the corresponding data source has received data.
       
    50     @param dataSource The corresponding data source.
       
    51 */
       
    52 - (void)dataSourceUpdated:(WebDataSource *)dataSource;
       
    53 
       
    54 /*!
       
    55     @method setNeedsLayout:
       
    56     @discussion Called when WebKit has determined that the document view needs to layout.
       
    57     This method should simply set a flag and call layout from drawRect if the flag is YES.
       
    58     @param flag YES to cause a layout, no to not cause a layout.
       
    59 */
       
    60 - (void)setNeedsLayout:(BOOL)flag;
       
    61 
       
    62 /*!
       
    63     @method layout
       
    64     @discussion Called when the document view must immediately layout. For simple views,
       
    65     setting the frame is a sufficient implementation of this method.
       
    66 */
       
    67 - (void)layout;
       
    68 
       
    69 /*!
       
    70     @method viewWillMoveToHostWindow:
       
    71     @param hostWindow The host window for the document view.
       
    72     @abstract Called before the host window is set on the parent web view.
       
    73 */
       
    74 - (void)viewWillMoveToHostWindow:(NSWindow *)hostWindow;
       
    75 
       
    76 /*!
       
    77     @method viewDidMoveToHostWindow
       
    78     @abstract Called after the host window is set on the parent web view.
       
    79 */
       
    80 - (void)viewDidMoveToHostWindow;
       
    81 
       
    82 @end
       
    83 
       
    84 
       
    85 /*!
       
    86     @protocol WebDocumentSearching
       
    87     @discussion Optional protocol for searching document view of WebFrameView. 
       
    88 */
       
    89 @protocol WebDocumentSearching <NSObject>
       
    90 /*!
       
    91     @method searchFor:direction:caseSensitive:wrap:
       
    92     @abstract Searches a document view for a string and highlights the string if it is found.
       
    93     @param string The string to search for.
       
    94     @param forward YES to search forward, NO to seach backwards.
       
    95     @param caseFlag YES to for case-sensitive search, NO for case-insensitive search.
       
    96     @param wrapFlag YES to wrap around, NO to avoid wrapping.
       
    97     @result YES if found, NO if not found.
       
    98 */
       
    99 - (BOOL)searchFor:(NSString *)string direction:(BOOL)forward caseSensitive:(BOOL)caseFlag wrap:(BOOL)wrapFlag;
       
   100 @end
       
   101 
       
   102 
       
   103 /*!
       
   104     @protocol WebDocumentText
       
   105     @discussion Optional protocol for supporting text operations.
       
   106 */
       
   107 @protocol WebDocumentText <NSObject>
       
   108 
       
   109 /*!
       
   110     @method supportsTextEncoding
       
   111     @result YES if the document view support text encoding, NO if it doesn't.
       
   112 */
       
   113 - (BOOL)supportsTextEncoding;
       
   114 
       
   115 /*!
       
   116     @method string
       
   117     @result String that represents the entire document.
       
   118 */
       
   119 - (NSString *)string;
       
   120 
       
   121 /*!
       
   122     @method attributedString
       
   123     @result Attributed string that represents the entire document.
       
   124 */
       
   125 - (NSAttributedString *)attributedString;
       
   126 
       
   127 /*!
       
   128     @method selectedString
       
   129     @result String that represents the current selection.
       
   130 */
       
   131 - (NSString *)selectedString;
       
   132 
       
   133 /*!
       
   134     @method selectedAttributedString
       
   135     @result Attributed string that represents the current selection.
       
   136 */
       
   137 - (NSAttributedString *)selectedAttributedString;
       
   138 
       
   139 
       
   140 /*!
       
   141     @method selectAll
       
   142     @abstract Selects all the text in the document.
       
   143 */
       
   144 - (void)selectAll;
       
   145 
       
   146 /*!
       
   147     @method deselectText
       
   148     @abstract Causes a text selection to lose its selection.
       
   149 */
       
   150 - (void)deselectAll;
       
   151 
       
   152 @end
       
   153 
       
   154 
       
   155 /*!
       
   156     @protocol WebDocumentRepresentation
       
   157     @discussion Protocol implemented by the document representation of a data source.
       
   158 */
       
   159 @protocol WebDocumentRepresentation <NSObject>
       
   160 /*!
       
   161     @method setDataSource:
       
   162     @abstract Called soon after the document representation is created.
       
   163     @param dataSource The data source that is set.
       
   164 */
       
   165 - (void)setDataSource:(WebDataSource *)dataSource;
       
   166 
       
   167 /*!
       
   168     @method receivedData:withDataSource:
       
   169     @abstract Called when the data source has received data.
       
   170     @param data The data that the data source has received.
       
   171     @param dataSource The data source that has received data.
       
   172 */
       
   173 - (void)receivedData:(NSData *)data withDataSource:(WebDataSource *)dataSource;
       
   174 
       
   175 /*!
       
   176     @method receivedError:withDataSource:
       
   177     @abstract Called when the data source has received an error.
       
   178     @param error The error that the data source has received.
       
   179     @param dataSource The data source that has received the error.
       
   180 */
       
   181 - (void)receivedError:(NSError *)error withDataSource:(WebDataSource *)dataSource;
       
   182 
       
   183 /*!
       
   184     @method finishedLoadingWithDataSource:
       
   185     @abstract Called when the data source has finished loading.
       
   186     @param dataSource The datasource that has finished loading.
       
   187 */
       
   188 - (void)finishedLoadingWithDataSource:(WebDataSource *)dataSource;
       
   189 
       
   190 /*!
       
   191     @method canProvideDocumentSource
       
   192     @result Returns true if the representation can provide document source.
       
   193 */
       
   194 - (BOOL)canProvideDocumentSource;
       
   195 
       
   196 /*!
       
   197     @method documentSource
       
   198     @result Returns the textual source representation of the document.  For HTML documents
       
   199     this is the original HTML source.
       
   200 */
       
   201 - (NSString *)documentSource;
       
   202 
       
   203 /*!
       
   204     @method title
       
   205     @result Return the title for the document.
       
   206 */
       
   207 - (NSString *)title;
       
   208 
       
   209 @end