/*

 * Copyright (C) 2005, 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. 

 * 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 "WebRenderNode.h"

#import "WebFrameInternal.h"

#import <WebCore/Frame.h>

#import <WebCore/FrameLoaderClient.h>

#import <WebCore/RenderText.h>

#import <WebCore/RenderWidget.h>

#import <WebCore/RenderView.h>

#import <WebCore/Widget.h>

using namespace WebCore;

static WebRenderNode *copyRenderNode(RenderObject*);

@implementation WebRenderNode

- (id)_initWithCoreFrame:(Frame *)frame

{

    [self release];

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

        return nil;

    RenderObject* renderer = frame->contentRenderer();

    if (!renderer)

        return nil;

    return copyRenderNode(renderer);

}

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

{

    NSMutableArray *collectChildren;

    self = [super init];

    if (!self)

        return nil;

    collectChildren = [c mutableCopy];

    name = [n retain];

    rect = r;

    absolutePosition = p;

    if (coreFrame) {

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

        [collectChildren addObject:node];

        [node release];

    }

    children = [collectChildren copy];

    [collectChildren release];

    return self;

}

static WebRenderNode *copyRenderNode(RenderObject* node)

{

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

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

        WebRenderNode *childCopy = copyRenderNode(child);

        [children addObject:childCopy];

        [childCopy release];

    }

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

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

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

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

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

    // FIXME: broken with transforms

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

    int x = 0;

    int y = 0;

    int width = 0;

    int height = 0;

    if (node->isBox()) {

        RenderBox* box = toRenderBox(node);

        x = box->x();

        y = box->y();

        width = box->width();

        height = box->height();

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

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

        RenderText* text = toRenderText(node);

        x = text->firstRunX();

        y = text->firstRunY();

        IntRect box = text->linesBoundingBox();

        width = box.width();

        height = box.height();

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

        RenderBoxModelObject* inlineFlow = toRenderBoxModelObject(node);

        IntRect boundingBox = inlineFlow->borderBoundingBox();

        x = boundingBox.x();

        y = boundingBox.y();

        width = boundingBox.width();

        height = boundingBox.height();

    }

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

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

                                                       coreFrame:frame children:children];

    [name release];

    [children release];

    return result;

}

- (id)initWithWebFrame:(WebFrame *)frame

{

    return [self _initWithCoreFrame:core(frame)];

}

- (void)dealloc

{

    [children release];

    [name release];

    [super dealloc];

}

- (NSArray *)children

{

    return children;

}

- (NSString *)name

{

    return name;

}

- (NSString *)absolutePositionString

{

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

}

- (NSString *)positionString

{

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

}

- (NSString *)widthString

{

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

}

- (NSString *)heightString

{

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

}

@end