Rotate a PDF from InAppBrowser - ios

Question

So I was able to integrate InAppBrowser-CE this plugin which works amazingly to display PDF's from a specified window size and give transparency, but now I am trying to figure out how to rotate the PDF. I want to add a rotation tool (similar to the photo library in iOS) but dont know where to start at. I saw something about image rotation tool, but wasnt sure if it applied to a pdf file, and I don't want to keep at something that doesn't work (i.e. using iFrame instead of InAppBrowser to display PDFs) any help is much appreciated. Here is just a sample of how the PDF is called to give you some insight.
This is from HTML to call it to open:
<button onclick="window.open('http://www.free.woodworking-plans.org/images/ranch-house-7161/ranch-house-floor-plan-o.jpg','_blank','vw=685,vh=650,vx=40,vy=40');">Change my size</button>
And here is how the PDF is opened (from xcode CDVInAppBrowser.m)
- (void)openInInAppBrowser:(NSURL*)url withOptions:(NSString*)options
{
if (self.inAppBrowserViewController == nil) {
NSString* originalUA = [CDVUserAgentUtil originalUserAgent];
self.inAppBrowserViewController = [[CDVInAppBrowserViewController alloc] initWithUserAgent:originalUA prevUserAgent:[self.commandDelegate userAgent]];
self.inAppBrowserViewController.navigationDelegate = self;
if ([self.viewController conformsToProtocol:#protocol(CDVScreenOrientationDelegate)]) {
self.inAppBrowserViewController.orientationDelegate = (UIViewController <CDVScreenOrientationDelegate>*)self.viewController;
}
}
// set pointer to this viewcontroller for later use
iabvc = self.inAppBrowserViewController;
CDVInAppBrowserOptions* browserOptions = [CDVInAppBrowserOptions parseOptions:options];
[self.inAppBrowserViewController showLocationBar:browserOptions.location];
[self.inAppBrowserViewController showToolBar:browserOptions.toolbar];
....
- (id)initWithUserAgent:(NSString*)userAgent prevUserAgent:(NSString*)prevUserAgent
{
self = [super init];
if (self != nil) {
_userAgent = userAgent;
_prevUserAgent = prevUserAgent;
_webViewDelegate = [[CDVWebViewDelegate alloc] initWithDelegate:self];
[self createViews];
}
return self;
}
And here is what the tools section looks like,
self.toolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0.0, (self.view.bounds.size.height - TOOLBAR_HEIGHT), self.view.bounds.size.width, TOOLBAR_HEIGHT)];
self.toolbar.alpha = 1.000;
self.toolbar.autoresizesSubviews = YES;
self.toolbar.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin;
self.toolbar.barStyle = UIBarStyleBlackOpaque;
self.toolbar.clearsContextBeforeDrawing = NO;
self.toolbar.clipsToBounds = NO;
self.toolbar.contentMode = UIViewContentModeScaleToFill;
self.toolbar.contentStretch = CGRectFromString(#"{{0, 0}, {1, 1}}");
self.toolbar.hidden = NO;
self.toolbar.multipleTouchEnabled = NO;
self.toolbar.opaque = NO;
self.toolbar.userInteractionEnabled = YES;

Answer 1

I created a rotate button then added this below,
.h
//header - add 'int counter'
#interface CDVInAppBrowserViewController : UIViewController <UIWebViewDelegate>{
#private
NSString* _userAgent;
NSString* _prevUserAgent;
NSInteger _userAgentLockToken;
CDVWebViewDelegate* _webViewDelegate;
int counter;
}
.m
//Add this to the top of the .m file
#define DegreesToRadians(X) ((X) * M_PI / 180.0)
...
//reference
- (id)initWithUserAgent:(NSString*)userAgent prevUserAgent:(NSString*)prevUserAgent
{
counter = 0;
...
//create Rotate Button
NSString* rotateString = #"Rotate";
self.RotateButton = [[UIBarButtonItem alloc] initWithTitle:rotateString style:UIBarButtonItemStylePlain target:self action:#selector(goRotate:)];
self.RotateButton.enabled = YES;
self.RotateButton.imageInsets = UIEdgeInsetsZero;
....
//action - sender
-(IBAction)goRotate:(id)sender
{ counter ++; float angle = (counter%3)*90;
[UIView beginAnimations:#"rotate" context:nil];
[UIView setAnimationDuration:0.5];
self.webView.transform = CGAffineTransformMakeRotation(DegreesToRadians(angle));
[UIView commitAnimations];
}