1 /*

     2  * Copyright (C) 2005, 2008 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  *

     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 "WebRenderNode.h"

    30 

    31 #import "WebFrameInternal.h"

    32 #import <WebCore/Frame.h>

    33 #import <WebCore/FrameLoaderClient.h>

    34 #import <WebCore/RenderText.h>

    35 #import <WebCore/RenderWidget.h>

    36 #import <WebCore/RenderView.h>

    37 #import <WebCore/Widget.h>

    38 

    39 using namespace WebCore;

    40 

    41 static WebRenderNode *copyRenderNode(RenderObject*);

    42 

    43 @implementation WebRenderNode

    44 

    45 - (id)_initWithCoreFrame:(Frame *)frame

    46 {

    47     [self release];

    48     

    49     if (!frame->loader()->client()->hasHTMLView())

    50         return nil;

    51     

    52     RenderObject* renderer = frame->contentRenderer();

    53     if (!renderer)

    54         return nil;

    55     

    56     return copyRenderNode(renderer);

    57 }

    58 

    59 - (id)_initWithName:(NSString *)n position:(NSPoint)p rect:(NSRect)r coreFrame:(Frame*)coreFrame children:(NSArray *)c

    60 {

    61     NSMutableArray *collectChildren;

    62     

    63     self = [super init];

    64     if (!self)

    65         return nil;

    66 

    67     collectChildren = [c mutableCopy];

    68 

    69     name = [n retain];

    70     rect = r;

    71     absolutePosition = p;

    72 

    73     if (coreFrame) {

    74         WebRenderNode *node = [[WebRenderNode alloc] _initWithCoreFrame:coreFrame];

    75         [collectChildren addObject:node];

    76         [node release];

    77     }

    78     

    79     children = [collectChildren copy];

    80     [collectChildren release];

    81     

    82     return self;

    83 }

    84 

    85 static WebRenderNode *copyRenderNode(RenderObject* node)

    86 {

    87     NSMutableArray *children = [[NSMutableArray alloc] init];

    88     for (RenderObject* child = node->firstChild(); child; child = child->nextSibling()) {

    89         WebRenderNode *childCopy = copyRenderNode(child);

    90         [children addObject:childCopy];

    91         [childCopy release];

    92     }

    93 

    94     NSString *name = [[NSString alloc] initWithUTF8String:node->renderName()];

    95     

    96     RenderWidget* renderWidget = node->isWidget() ? toRenderWidget(node) : 0;

    97     Widget* widget = renderWidget ? renderWidget->widget() : 0;

    98     FrameView* frameView = widget && widget->isFrameView() ? static_cast<FrameView*>(widget) : 0;

    99     Frame* frame = frameView ? frameView->frame() : 0;

   100 

   101     // FIXME: broken with transforms

   102     FloatPoint absPos = node->localToAbsolute(FloatPoint());

   103     int x = 0;

   104     int y = 0;

   105     int width = 0;

   106     int height = 0;

   107     if (node->isBox()) {

   108         RenderBox* box = toRenderBox(node);

   109         x = box->x();

   110         y = box->y();

   111         width = box->width();

   112         height = box->height();

   113     } else if (node->isText()) {

   114         // FIXME: Preserve old behavior even though it's strange.

   115         RenderText* text = toRenderText(node);

   116         x = text->firstRunX();

   117         y = text->firstRunY();

   118         IntRect box = text->linesBoundingBox();

   119         width = box.width();

   120         height = box.height();

   121     } else if (node->isRenderInline()) {

   122         RenderBoxModelObject* inlineFlow = toRenderBoxModelObject(node);

   123         IntRect boundingBox = inlineFlow->borderBoundingBox();

   124         x = boundingBox.x();

   125         y = boundingBox.y();

   126         width = boundingBox.width();

   127         height = boundingBox.height();

   128     }

   129 

   130     WebRenderNode *result = [[WebRenderNode alloc] _initWithName:name

   131                                                         position:absPos rect:NSMakeRect(x, y, width, height)

   132                                                        coreFrame:frame children:children];

   133 

   134     [name release];

   135     [children release];

   136 

   137     return result;

   138 }

   139 

   140 - (id)initWithWebFrame:(WebFrame *)frame

   141 {

   142     return [self _initWithCoreFrame:core(frame)];

   143 }

   144 

   145 - (void)dealloc

   146 {

   147     [children release];

   148     [name release];

   149     [super dealloc];

   150 }

   151 

   152 - (NSArray *)children

   153 {

   154     return children;

   155 }

   156 

   157 - (NSString *)name

   158 {

   159     return name;

   160 }

   161 

   162 - (NSString *)absolutePositionString

   163 {

   164     return [NSString stringWithFormat:@"(%.0f, %.0f)", absolutePosition.x, absolutePosition.y];

   165 }

   166 

   167 - (NSString *)positionString

   168 {

   169     return [NSString stringWithFormat:@"(%.0f, %.0f)", rect.origin.x, rect.origin.y];

   170 }

   171 

   172 - (NSString *)widthString

   173 {

   174     return [NSString stringWithFormat:@"%.0f", rect.size.width];

   175 }

   176 

   177 - (NSString *)heightString

   178 {

   179     return [NSString stringWithFormat:@"%.0f", rect.size.height];

   180 }

   181 

   182 @end