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//
// TFHppleElement.m
// Hpple
//
// Created by Geoffrey Grosenbach on 1/31/09.
//
// Copyright (c) 2009 Topfunky Corporation, http://topfunky.com
//
// MIT LICENSE
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#import "TFHppleElement.h"
static NSString * const TFHppleNodeContentKey = @"nodeContent";
static NSString * const TFHppleNodeNameKey = @"nodeName";
static NSString * const TFHppleNodeChildrenKey = @"nodeChildArray";
static NSString * const TFHppleNodeAttributeArrayKey = @"nodeAttributeArray";
static NSString * const TFHppleNodeAttributeNameKey = @"attributeName";
static NSString * const TFHppleTextNodeName = @"text";
@interface TFHppleElement ()
@property (nonatomic, unsafe_unretained, readwrite) TFHppleElement *parent;
@end
@implementation TFHppleElement
@synthesize parent;
- (id) initWithNode:(NSDictionary *) theNode
{
if (!(self = [super init]))
return nil;
node = theNode;
return self;
}
+ (TFHppleElement *) hppleElementWithNode:(NSDictionary *) theNode {
return [[[self class] alloc] initWithNode:theNode];
}
#pragma mark -
- (NSString *)raw
{
return [node objectForKey:@"raw"];
}
- (NSString *) content
{
return [node objectForKey:TFHppleNodeContentKey];
}
- (NSString *) tagName
{
return [node objectForKey:TFHppleNodeNameKey];
}
- (NSArray *) children
{
NSMutableArray *children = [NSMutableArray array];
for (NSDictionary *child in [node objectForKey:TFHppleNodeChildrenKey]) {
TFHppleElement *element = [TFHppleElement hppleElementWithNode:child];
element.parent = self;
[children addObject:element];
}
return children;
}
- (TFHppleElement *) firstChild
{
NSArray * children = self.children;
if (children.count)
return [children objectAtIndex:0];
return nil;
}
- (NSDictionary *) attributes
{
NSMutableDictionary * translatedAttributes = [NSMutableDictionary dictionary];
for (NSDictionary * attributeDict in [node objectForKey:TFHppleNodeAttributeArrayKey]) {
if ([attributeDict objectForKey:TFHppleNodeContentKey] && [attributeDict objectForKey:TFHppleNodeAttributeNameKey]) {
[translatedAttributes setObject:[attributeDict objectForKey:TFHppleNodeContentKey]
forKey:[attributeDict objectForKey:TFHppleNodeAttributeNameKey]];
}
}
return translatedAttributes;
}
- (NSString *) objectForKey:(NSString *) theKey
{
return [[self attributes] objectForKey:theKey];
}
- (id) description
{
return [node description];
}
- (BOOL)hasChildren
{
if ([node objectForKey:TFHppleNodeChildrenKey])
return YES;
else
return NO;
}
- (BOOL)isTextNode
{
// we must distinguish between real text nodes and standard nodes with tha name "text" (<text>)
// real text nodes must have content
if ([self.tagName isEqualToString:TFHppleTextNodeName] && (self.content))
return YES;
else
return NO;
}
- (NSArray*) childrenWithTagName:(NSString*)tagName
{
NSMutableArray* matches = [NSMutableArray array];
for (TFHppleElement* child in self.children)
{
if ([child.tagName isEqualToString:tagName])
[matches addObject:child];
}
return matches;
}
- (TFHppleElement *) firstChildWithTagName:(NSString*)tagName
{
for (TFHppleElement* child in self.children)
{
if ([child.tagName isEqualToString:tagName])
return child;
}
return nil;
}
- (NSArray*) childrenWithClassName:(NSString*)className
{
NSMutableArray* matches = [NSMutableArray array];
for (TFHppleElement* child in self.children)
{
if ([[child objectForKey:@"class"] isEqualToString:className])
[matches addObject:child];
}
return matches;
}
- (TFHppleElement *) firstChildWithClassName:(NSString*)className
{
for (TFHppleElement* child in self.children)
{
if ([[child objectForKey:@"class"] isEqualToString:className])
return child;
}
return nil;
}
- (TFHppleElement *) firstTextChild;
{
for (TFHppleElement* child in self.children)
{
if ([child isTextNode])
return child;
}
return [self firstChildWithTagName:TFHppleTextNodeName];
}
- (NSString *) text
{
return self.firstTextChild.content;
}
@end
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