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Added custom table cell, some sample javascript eval code
1 parent f8fa93d commit b370c39

9 files changed

Lines changed: 368 additions & 339 deletions

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‎Samples/WebView Explorer.xcodeproj/project.pbxproj‎

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2D5A7870139C617000335643 /* RootViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 2D5A786F139C617000335643 /* RootViewController.m */; };
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2D76610D142022CD00FA33D5 /* libGAJavaScript.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 2D76610C142022CD00FA33D5 /* libGAJavaScript.a */; };
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2D76610F142022E900FA33D5 /* QuartzCore.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 2D76610E142022E900FA33D5 /* QuartzCore.framework */; };
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2DF677F41420867E00285058 /* HtmlElementTableCell.m in Sources */ = {isa = PBXBuildFile; fileRef = 2DF677F31420867E00285058 /* HtmlElementTableCell.m */; };
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/* End PBXBuildFile section */
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/* Begin PBXFileReference section */
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2D5A786F139C617000335643 /* RootViewController.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = RootViewController.m; sourceTree = "<group>"; };
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2D76610C142022CD00FA33D5 /* libGAJavaScript.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; path = libGAJavaScript.a; sourceTree = BUILT_PRODUCTS_DIR; };
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2D76610E142022E900FA33D5 /* QuartzCore.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = QuartzCore.framework; path = System/Library/Frameworks/QuartzCore.framework; sourceTree = SDKROOT; };
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2DF677F21420867E00285058 /* HtmlElementTableCell.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = HtmlElementTableCell.h; sourceTree = "<group>"; };
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2DF677F31420867E00285058 /* HtmlElementTableCell.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = HtmlElementTableCell.m; sourceTree = "<group>"; };
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/* End PBXFileReference section */
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/* Begin PBXFrameworksBuildPhase section */
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2D5A786B139C617000335643 /* DetailView.xib */,
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2D5A786E139C617000335643 /* RootViewController.h */,
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2D5A786F139C617000335643 /* RootViewController.m */,
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2DF677F21420867E00285058 /* HtmlElementTableCell.h */,
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2DF677F31420867E00285058 /* HtmlElementTableCell.m */,
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2D5A785A139C617000335643 /* Supporting Files */,
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);
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path = "WebView Explorer";
@@ -194,6 +199,7 @@
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2D5A7864139C617000335643 /* ExplorerAppDelegate.m in Sources */,
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2D5A786A139C617000335643 /* DetailViewController.m in Sources */,
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2D5A7870139C617000335643 /* RootViewController.m in Sources */,
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2DF677F41420867E00285058 /* HtmlElementTableCell.m in Sources */,
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);
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runOnlyForDeploymentPostprocessing = 0;
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};

‎Samples/WebView Explorer/DetailViewController.h‎

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@@ -29,4 +29,6 @@
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@property (nonatomic, retain) GAScriptEngine* scriptEngine;
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@property (nonatomic, assign) RootViewController * rootController;
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- (IBAction)invokeJavaScript:(id)sender;
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@end

‎Samples/WebView Explorer/DetailViewController.m‎

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@@ -10,7 +10,7 @@
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#import "RootViewController.h"
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#import "GAScriptEngine.h"
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#import "GAScriptBlockObject.h"
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#import "UIWebView+GAJavaScript.h"
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#import "GAScriptMethodSignatures.h"
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@interface DetailViewController ()
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@@ -29,7 +29,37 @@ @implementation DetailViewController
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@synthesize rootController = _rootController;
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@synthesize popoverController=_myPopoverController;
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#pragma mark - Managing the detail item
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- (IBAction)invokeJavaScript:(id)sender
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{
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NSString* prompt = @"Hello from Objective-C";
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NSString* js = [NSString stringWithFormat:@"window.prompt('%@')", prompt];
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NSString* result = [self.webView stringByEvaluatingJavaScriptFromString:js];
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NSLog(@"window prompt: %@", result);
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// The importance of escaping data
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//
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prompt = @"This is a javascript prompt";
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js = [NSString stringWithFormat:@"window.proompt('%@')", prompt];
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// js = [NSString stringWithFormat:@"try { %@; } catch (ex) { JSON.stringify(ex); }", js];
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result = [self.webView stringByEvaluatingJavaScriptFromString:js];
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NSLog(@"window prompt: %@", result);
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// Often you need to call toString() manually
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//
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js = [NSString stringWithFormat:@"new Date(%.0f)", [[NSDate date] timeIntervalSince1970] * 1000];
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result = [self.webView stringByEvaluatingJavaScriptFromString:js];
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NSLog(@"new Date: %@", result);
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js = [NSString stringWithFormat:@"new Date(%.0f).toString()", [[NSDate date] timeIntervalSince1970] * 1000];
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result = [self.webView stringByEvaluatingJavaScriptFromString:js];
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NSLog(@"new Date: %@", result);
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// Can help with error detection
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// js = [NSString stringWithFormat:@"try { %@; } catch (ex) { ex.toString(); }", js];
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}
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#pragma mark - UIViewController
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- (void)viewWillAppear:(BOOL)animated
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{
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[super viewDidLoad];
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_scriptEngine = [[GAScriptEngine alloc] initWithWebView:_webView];
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// Add the methods for DOM Traversal
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[GAScriptMethodSignatures addMethodSignaturesForClass:[DOMTraversal class]];
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NSURL* url = [[NSUserDefaults standardUserDefaults] URLForKey:@"WebView URL"];
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if (url)
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{
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[_webView loadRequest:[NSURLRequest requestWithURL:url]];
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[self.urlField setText:[url absoluteString]];
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}
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}
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- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request
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navigationType:(UIWebViewNavigationType)navigationType
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{
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NSLog(@"DetailView will load %@", [request URL]);
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return YES;
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}
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- (void)webViewDidFinishLoad:(UIWebView *)webView
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{
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NSString* js = [NSString stringWithFormat:@"window.alert('Hello from Objective-C')"];
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NSString* result = [webView stringByEvaluatingJavaScriptFromString:js];
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NSLog(@"UIWebView: %@", result);
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// Save the URL for future runs
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[[NSUserDefaults standardUserDefaults] setURL:[webView.request URL] forKey:@"WebView URL"];
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NSDate* date = [NSDate date];
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js = [NSString stringWithFormat:@"new Date(%.0f)", [date timeIntervalSince1970] * 1000];
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result = [webView stringByEvaluatingJavaScriptFromString:js];
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NSLog(@"UIWebView: %@", result);
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js = [NSString stringWithFormat:@"new Date(%.0f).toString()", [date timeIntervalSince1970] * 1000];
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result = [webView stringByEvaluatingJavaScriptFromString:js];
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NSLog(@"UIWebView: %@", result);
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if (_rootController.document == nil)
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{
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[_rootController setDocument:[_scriptEngine documentObject]];
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[_rootController setRootNode:[_scriptEngine documentObject]];
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}
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js = @"var arrayValue = [1000, 2000, 3000, 'String with a comma,', 5000]";
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result = [webView stringByEvaluatingJavaScriptFromString:js];
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NSLog(@"UIWebView: %@", result);
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js = @"arrayValue.toString()";
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result = [webView stringByEvaluatingJavaScriptFromString:js];
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NSLog(@"UIWebView: %@", result);
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[[_scriptEngine documentObject] setFunctionForKey:@"ontouchstart" withBlock:^ (NSArray* arguments)
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{
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id touchEvent = [arguments objectAtIndex:0];
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[[_scriptEngine windowObject] callFunction:@"console.log" withObject:@"ontouchstart"];
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[_rootController setRootNode:[touchEvent valueForKey:@"target"]];
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}];
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// Override the webview console to call us back so we can log to NSLog()
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//
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id console = [[_scriptEngine windowObject] valueForKey:@"console"];
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[console setFunctionForKey:@"log" withBlock:^ (NSArray* arguments)
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{
217+
if ([arguments count] == 2)
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{
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NSLog(@"WebView: %@ %@", [arguments objectAtIndex:0], [arguments objectAtIndex:1]);
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}
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else
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{
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NSLog(@"WebView: %@", [arguments objectAtIndex:0]);
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}
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}];
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}
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@end

‎Samples/WebView Explorer/HtmlElementTableCell.h‎

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//
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// HtmlElementTableCell.h
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// WebView Explorer
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//
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// Created by Andrew Goodale on 9/6/11.
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// Copyright 2011 Wingspan Technology, Inc. All rights reserved.
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//
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#import <UIKit/UIKit.h>
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enum DomNodeType
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{
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ELEMENT_NODE = 1,
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ATTRIBUTE_NODE = 2,
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TEXT_NODE = 3,
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COMMENT_NODE = 8
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};
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@interface HtmlElementTableCell : UITableViewCell
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{
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@private
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id _domElement;
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}
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@property (nonatomic, retain) id domElement;
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@end

‎Samples/WebView Explorer/HtmlElementTableCell.m‎

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//
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// HtmlElementTableCell.m
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// WebView Explorer
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//
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// Created by Andrew Goodale on 9/6/11.
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// Copyright 2011 Wingspan Technology, Inc. All rights reserved.
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//
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#import "HtmlElementTableCell.h"
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@implementation HtmlElementTableCell
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@synthesize domElement = _domElement;
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- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
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{
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self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
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if (self)
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{
22+
// Initialization code
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}
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return self;
26+
}
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- (void)dealloc
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{
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[_domElement release];
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[super dealloc];
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}
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- (void)setDomElement:(id)domElement
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{
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[_domElement release];
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_domElement = [domElement retain];
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NSNumber* nodeType = [_domElement valueForKey:@"nodeType"];
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if ([nodeType intValue] == ELEMENT_NODE)
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{
44+
self.textLabel.text = [_domElement valueForKey:@"nodeName"];
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if ([[_domElement valueForKey:@"childElementCount"] intValue] > 0)
47+
{
48+
self.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
49+
self.detailTextLabel.text = @"";
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}
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else
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{
53+
self.accessoryType = UITableViewCellAccessoryNone;
54+
self.detailTextLabel.text = [_domElement valueForKey:@"textContent"];
55+
}
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}
58+
else if ([nodeType intValue] == TEXT_NODE)
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{
60+
self.accessoryType = UITableViewCellAccessoryNone;
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self.textLabel.text = [_domElement valueForKey:@"nodeValue"];
62+
}
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else
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{
65+
self.accessoryType = UITableViewCellAccessoryNone;
66+
self.textLabel.text = @"";
67+
}
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self.textLabel.font = [UIFont systemFontOfSize:15.0];
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}
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- (void)setSelected:(BOOL)selected animated:(BOOL)animated
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{
74+
[super setSelected:selected animated:animated];
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// Configure the view for the selected state
77+
if (selected)
78+
{
79+
[_domElement setValue:@"1px solid blue" forKeyPath:@"style.border"];
80+
}
81+
else
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{
83+
[_domElement setValue:@"0px" forKeyPath:@"style.border"];
84+
}
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}
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87+
@end

‎Samples/WebView Explorer/RootViewController.h‎

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@interface RootViewController : UITableViewController
1414
{
15-
id _domElement;
16-
id _childNodes;
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id _document;
16+
NSArray* _elements;
1717
}
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1919
@property (nonatomic, retain) IBOutlet DetailViewController* detailViewController;
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21-
@property (nonatomic, retain) id domElement;
21+
@property (nonatomic, retain) id document;
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- (void)setRootNode:(id)rootNode;
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2325
@end
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#pragma mark -
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29+
@interface DOMTraversal : NSObject
30+
{
31+
32+
}
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- (id)createTreeWalker:(id)root whatToShow:(NSInteger)whatToShow;
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- (id)firstChild;
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- (id)nextSibling;
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@end

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