webframeview.h

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

/*
 * Copyright (C) 2003, 2004, 2005, 2006 Apple Computer, 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. 
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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.
 */

#import <Cocoa/Cocoa.h>

@class WebDataSource;
@class WebFrame;
@class WebFrameViewPrivate;

@protocol WebDocumentView;

/*!
    @class WebFrameView
*/
@interface WebFrameView : NSView
{
@private
    WebFrameViewPrivate *_private;
}

/*!
    @method webFrame
    @abstract Returns the WebFrame associated with this WebFrameView
    @result The WebFrameView's frame.
*/
- (WebFrame *)webFrame;

/*!
    @method documentView
    @abstract Returns the WebFrameView's document subview
    @result The subview that renders the WebFrameView's contents
*/
- (NSView <WebDocumentView> *)documentView;

/*!
    @method setAllowsScrolling:
    @abstract Sets whether the WebFrameView allows its document to be scrolled
    @param flag YES to allow the document to be scrolled, NO to disallow scrolling
*/
- (void)setAllowsScrolling:(BOOL)flag;

/*!
    @method allowsScrolling
    @abstract Returns whether the WebFrameView allows its document to be scrolled
    @result YES if the document is allowed to scroll, otherwise NO
*/
- (BOOL)allowsScrolling;

/*!
    @method canPrintHeadersAndFooters
    @abstract Tells whether this frame can print headers and footers
    @result YES if the frame can, no otherwise
*/
- (BOOL)canPrintHeadersAndFooters;

/*!
    @method printOperationWithPrintInfo
    @abstract Creates a print operation set up to print this frame
    @result A newly created print operation object
*/
- (NSPrintOperation *)printOperationWithPrintInfo:(NSPrintInfo *)printInfo;

/*!
    @method documentViewShouldHandlePrint
    @abstract Called by the host application before it initializes and runs a print operation.
    @result If NO is returned, the host application will abort its print operation and call -printDocumentView on the
    WebFrameView.  The document view is then expected to run its own print operation.  If YES is returned, the host 
    application's print operation will continue as normal.
*/
- (BOOL)documentViewShouldHandlePrint;

/*!
    @method printDocumentView
    @abstract Called by the host application when the WebFrameView returns YES from -documentViewShouldHandlePrint.
*/
- (void)printDocumentView;

@end