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      1 /*
      2  * Copyright (C) 2006, 2008 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 "WebNodeHighlightView.h"
     30 #import "WebNodeHighlight.h"
     31 
     32 #import <WebCore/GraphicsContext.h>
     33 #import <WebCore/InspectorController.h>
     34 #import <wtf/Assertions.h>
     35 
     36 using namespace WebCore;
     37 
     38 @implementation WebNodeHighlightView
     39 
     40 - (id)initWithWebNodeHighlight:(WebNodeHighlight *)webNodeHighlight
     41 {
     42     self = [self initWithFrame:NSZeroRect];
     43     if (!self)
     44         return nil;
     45 
     46     _webNodeHighlight = [webNodeHighlight retain];
     47 
     48     return self;
     49 }
     50 
     51 - (void)dealloc
     52 {
     53     [self detachFromWebNodeHighlight];
     54     [super dealloc];
     55 }
     56 
     57 - (void)detachFromWebNodeHighlight
     58 {
     59     [_webNodeHighlight release];
     60     _webNodeHighlight = nil;
     61 }
     62 
     63 - (BOOL)isFlipped
     64 {
     65     return YES;
     66 }
     67 
     68 - (void)drawRect:(NSRect)rect
     69 {
     70     if (_webNodeHighlight) {
     71         [NSGraphicsContext saveGraphicsState];
     72 
     73         ASSERT([[NSGraphicsContext currentContext] isFlipped]);
     74 
     75         GraphicsContext context((PlatformGraphicsContext*)[[NSGraphicsContext currentContext] graphicsPort]);
     76         [_webNodeHighlight inspectorController]->drawNodeHighlight(context);
     77         [NSGraphicsContext restoreGraphicsState];
     78     }
     79 }
     80 
     81 - (WebNodeHighlight *)webNodeHighlight
     82 {
     83     return _webNodeHighlight;
     84 }
     85 
     86 @end
     87