Is it possible to get access to "internal" links in PDF documents using CGPDFDocument, or other means? I'm building a simple reader app and would like to deliver my content in PDF form, but if I can't support links between pages in the doc this probably isn't going to work.
This question is similar, but does not address the issue of how to support hyperlinks.
See my answer here. Basically, you'll need to get familiar with PDF link annotations.
see this sample code...pdf hyperlinks works in this
https://github.com/vfr/Reader
If you're using Quartz to open and view a PDF, then yes, it looks like you will have access to internal links. Quartz will also let you add new links to PDFs. I don't have any first hand experience with iPhone/Mac development, but it would be quite strange for them to let you add hyperlinks, but not use them.
You need to do in two steps.
First: Parse your pdf to locate marked content operators
That's an exemple of a parsing code :
-(void)parseContent() {
CGPDFOperatorTableRef myTable;
myTable = CGPDFOperatorTableCreate();
CGPDFOperatorTableSetCallback(myTable, "BMC", &myOperator_BMC);
CGPDFContentStreamRef myContentStream = CGPDFContentStreamCreateWithPage(page);
CGPDFScannerRef myScanner = CGPDFScannerCreate(myContentStream, myTable, autoZoomAreas);
CGPDFScannerScan(myScanner);
CGPDFScannerRelease(myScanner);
CGPDFContentStreamRelease(myContentStream);
}
void myOperator_BMC(CGPDFScannerRef s, void *info)
{
const char *name;
CGPDFScannerPopName(s, &name);
}
(You need to complete and adjust this code to match your requirement)
Second: respond to the toucheEnded message to handle tap on those zones and make the UI respond accordingly.
Related
For example, what if you need to create an email body like this:
Text ...
Image ...
Text ...
Image ...
Text
Here is one of the examples that works for one text and one image:
var builder = new BodyBuilder ();
var pathImage = Path.Combine (Misc.GetPathOfExecutingAssembly (), "Image.png");
var image = builder.LinkedResources.Add (pathLogoFile);
image.ContentId = MimeUtils.GenerateMessageId ();
builder.HtmlBody = string.Format (#"<p>Hey!</p><img src=""cid:{0}"">", image.ContentId);
message.Body = builder.ToMessageBody ();
Can we do something like builder.HtmlBody += to just keep adding more and more texts and images?
The BodyBuilder class is designed to constructing typically message structures, not the type of thing you are doing.
You will need to construct your message manually, not using BodyBuilder.
After quite a bit of trial/error/testing, I discovered that you can indeed keep adding text and images to the HtmlBody object, as my question speculated, by using builder.HtmlBody +=
In response to the increasingly widespread use of TLS instead of SSL, and therefore the need to abandon the use of Microsoft's obsolete SmtpClient component, I have developed a comprehensive emailing test component, in Visual Basic, using the wonderful MailKit from JStedfast.
As my question suggested, I wanted to give my users the ability to compose a handsome email body using text interspersed with images as needed. If any VB developers would like to benefit from this work, just let me know.
#jstedfast - I just saw your answer after posting this. For my production version, I need to add images from a blob field in a SQLServer table. I intend to use the manual method, as you stated, to do that. But for images I was loading into my sample program, I was able to make a fairly complex email body using src=file for each image, and adding them with builder.HtmlBody +=
I've been working on this for sometime now, and I keep running into a wall. I think I'm close, but I figured someone out here in the land of SO might have some deeper insight if not a better way of doing what I'm trying to do.
Basically lets look at this scenario. I have a logo w/ some text that can be set from a few different places. If we look at the setup here is what it looks like.
Hiearchy:
Homepage [has designPath]
- Child Microsite Page [has designPath]
- Logo Component
Logic Flow (in logo component):
if properties.get("logoText") {
use this
} else if currentStyle.get("logoTextFromStyle") {
use this
} else if parentStyle.get("logoTextFromGlobal") {
use this
} else {
be blank
}
My query is with how to get the "parentStyle" of this page. Looking at the docs here: http://dev.day.com/docs/en/cq/5-5/javadoc/com/day/cq/wcm/api/designer/Style.html
I've been able to come up with the fact that I can get a Style object from the "designer" object made available via defineObjects. This is defined with the other utility objects like "pageManager, resourceUtil, resource, currentPage, etc".
With that being said this doesn't seem to work.
//assuming we have getting homePage earlier and it is a valid cq Page resource
Resource homePageResource.slingRequest.getResourceResolver().getResource(homePage.getPath());
Style homePageStyle = designer.getStyle(homePageResource);
at this point homePageStyle is null. To do some more testing I i tried passing currentPage.getPath() instead of homePage.getPath(). I assumed this would give me the currentPage resource and would in end yield the currentStyle object. This also resulted in a null Style object. From this I think I can safely conclude I'm passing the incorrect resource type.
I attempted to load the the cq:designPath into the resource hoping to get a Designer resourceType but to no avail.
I am curious if anyone has run into this problem before. I apologize if I've gone into too much detail, but I wanted to lay out the "why" to my question as well, just in case there was a better way overall of accomplishing this.
I've figured out how to return the style. Here is the rundown of what I did.
//get your page object
Page targetPage = pageManager.getPage("/path/to/target");
//get the Design object of the target page
Design homePageDesign = designer.getDesign(homePage);
//extract the style from the design using the design path
Style homePageStyle = homePageDesign.getStyle(homePageDesign.getPath());
it's very interesting the definition of "getStyle" is a little different from the designer.getStyle vs a Design.getStyle. designer.getStyle asks for a resource whereas Design.getStyle will take the path to a Design "cell" and return the appropriate Style.
I did some testing and it looks like it does work with inherited Styles/Designs. So if my cq:designPath is set at level 1 and I look up a page on at level 2 they will return the Design/Style at the cq:designPath set at level 1.
I hope this helps someone else down the way.
I tried this approach but was not getting the Styles in the Style object.
When we do this:
Design homePageDesign = designer.getDesign(homePage);
In this Design object we get the path till the project node i.e etc/design/myproject
After this if we try to extract the Style from the design path we do not get it.
However I implemented it in a different way.
In the design object, we also get the complete JSON of designs for(etc/design/myproject).
Get the sling:resourceType of the target page and get the value after last index of "/".
Check if this JSON contains the last value. If it contains, you can get your styles, i.e. image, etc.
I'm working on a sample app for Facebook, using Flash Builder and Flex.
Now, I've got everything up and running - but there's one problem, specifically with the work history part.
When I try to display the user's work history..here's the code for logging in:
protected function login():void
{
FacebookDesktop.login(loginHandler, ["user_birthday", "user_work_history"]);
}
Here, loginHandler's a callback function, that then goes ahead and displays data about the user:
protected function loginHandler(success:Object,fail:Object):void
{
if (success){
currentState = "LoggedIn";
fname.text = success.user.name;
userImg.source=FacebookDesktop.getImageUrl(success.uid,"small");
birthdayLbl.text=success.user.birthday;
workLbl.text=success.user.work;
}
}
Now, the problem occurs with success.user.work - it ends up printing the following:
[object,Object],[object,Object],[object,Object],[object,Object]
Obviously, I'm doing something wrong..but I can't figure out what exactly it is. Would be grateful for some pointers!
Thanks!
Rudi.
The object contained in success.user.work is most likely an array of objects, each item representing a work period, so you'll have to treat it as such. Either use a list and a custom renderer for each item, or create a string by iterating over the array, and appending the fields that you're interested in.
To see what the individual objects contain, either use a breakpoint during debug and inspect them, or check to see if they're documented in the facebook development documentation.
I'm looking specifically for a way to automatically hyphenate CamelCase actions and views. That is, I'm hoping I don't have to actually rename my views or add decorators to every ActionResult in the site.
So far, I've been using routes.MapRouteLowercase, as shown here. That works pretty well for the lowercase aspect of URL structure, but not hyphens. So I recently started playing with Canonicalize (install via NuGet), but it also doesn't have anything for hyphens yet.
I was trying...
routes.Canonicalize().NoWww().Pattern("([a-z0-9])([A-Z])", "$1-$2").Lowercase().NoTrailingSlash();
My regular expression definitely works the way I want it to as far as restructuring the URL properly, but those URLs aren't identified, of course. The file is still ChangePassword.cshtml, for example, so /account/change-password isn't going to point to that.
BTW, I'm still a bit rusty with .NET MVC. I haven't used it for a couple years and not since v2.0.
This might be a tad bit messy, but if you created a custom HttpHandler and RouteHandler then that should prevent you from having to rename all of your views and actions. Your handler could strip the hyphen from the requested action, which would change "change-password" to changepassword, rendering the ChangePassword action.
The code is shortened for brevity, but the important bits are there.
public void ProcessRequest(HttpContext context)
{
string controllerId = this.requestContext.RouteData.GetRequiredString("controller");
string view = this.requestContext.RouteData.GetRequiredString("action");
view = view.Replace("-", "");
this.requestContext.RouteData.Values["action"] = view;
IController controller = null;
IControllerFactory factory = null;
try
{
factory = ControllerBuilder.Current.GetControllerFactory();
controller = factory.CreateController(this.requestContext, controllerId);
if (controller != null)
{
controller.Execute(this.requestContext);
}
}
finally
{
factory.ReleaseController(controller);
}
}
I don't know if I implemented it the best way or not, that's just more or less taken from the first sample I came across. I tested the code myself so this does render the correct action/view and should do the trick.
I've developed an open source NuGet library for this problem which implicitly converts EveryMvc/Url to every-mvc/url.
Uppercase urls are problematic because cookie paths are case-sensitive, most of the internet is actually case-sensitive while Microsoft technologies treats urls as case-insensitive. (More on my blog post)
NuGet Package: https://www.nuget.org/packages/LowercaseDashedRoute/
To install it, simply open the NuGet window in the Visual Studio by right clicking the Project and selecting NuGet Package Manager, and on the "Online" tab type "Lowercase Dashed Route", and it should pop up.
Alternatively, you can run this code in the Package Manager Console:
Install-Package LowercaseDashedRoute
After that you should open App_Start/RouteConfig.cs and comment out existing route.MapRoute(...) call and add this instead:
routes.Add(new LowercaseDashedRoute("{controller}/{action}/{id}",
new RouteValueDictionary(
new { controller = "Home", action = "Index", id = UrlParameter.Optional }),
new DashedRouteHandler()
)
);
That's it. All the urls are lowercase, dashed, and converted implicitly without you doing anything more.
Open Source Project Url: https://github.com/AtaS/lowercase-dashed-route
Have you tried working with the URL Rewrite package? I think it pretty much what you are looking for.
http://www.iis.net/download/urlrewrite
Hanselman has a great example herE:
http://www.hanselman.com/blog/ASPNETMVCAndTheNewIIS7RewriteModule.aspx
Also, why don't you download something like ReSharper or CodeRush, and use it to refactor the Action and Route names? It's REALLY easy, and very safe.
It would time well spent, and much less time overall to fix your routing/action naming conventions with an hour of refactoring than all the hours you've already spent trying to alter the routing conventions to your needs.
Just a thought.
I tried the solution in the accepted answer above: Using the Canonicalize Pattern url strategy, and then also adding a custom IRouteHandler which then returns a custom IHttpHandler. It mostly worked. Here's one caveat I found:
With the typical {controller}/{action}/{id} default route, a controller named CatalogController, and an action method inside it as follows:
ActionResult QuickSelect(string id){ /*do some things, access the 'id' parameter*/ }
I noticed that requests to "/catalog/quick-select/1234" worked perfectly, but requests to /catalog/quick-select?id=1234 were 500'ing because once the action method was called as a result of controller.Execute(), the id parameter was null inside of the action method.
I do not know exactly why this is, but the behavior was as if MVC was not looking at the query string for values during model binding. So something about the ProcessRequest implementation in the accepted answer was screwing up the normal model binding process, or at least the query string value provider.
This is a deal breaker, so I took a look at default MVC IHttpHandler (yay open source!): http://aspnetwebstack.codeplex.com/SourceControl/latest#src/System.Web.Mvc/MvcHandler.cs
I will not pretend that I grok'ed it in its entirety, but clearly, it's doing ALOT more in its implementation of ProcessRequest than what is going on in the accepted answer.
So, if all we really need to do is strip dashes from our incoming route data so that MVC can find our controllers/actions, why do we need to implement a whole stinking IHttpHandler? We don't! Simply rip out the dashes in the GetHttpHandler method of DashedRouteHandler and pass the requestContext along to the out of the box MvcHandler so it can do its 252 lines of magic, and your route handler doesn't have to return a second rate IHttpHandler.
tl:dr; - Here's what I did:
public class DashedRouteHandler : IRouteHandler
{
public IHttpHandler GetHttpHandler(RequestContext requestContext)
{
requestContext.RouteData.Values["action"] = requestContext.RouteData.GetRequiredString("action").Replace("-", "");
requestContext.RouteData.Values["controller"] = requestContext.RouteData.GetRequiredString("controller").Replace("-", "");
return new MvcHandler(requestContext);
}
}
I developing an application in zend framework. I want to store certain secure images and pdf documents outside public folder like /project/data/uploads or /projects/application/data/uploads.
I am not able to access the images/pdf documents other than public folder.
Can someone suggest a way to do it.
thank you
You have to have a separate action that knows how to fetch and deliver all that stuff. Something like this:
public function viewpdfAction()
{
$id = (int) $this->_getParam('id', 0);
// You implement some function - either here in your controller
// or someplace else - to get the pdf name from the passed id.
// Alternatively, you can pass the name itself. Up to you, of course.
// The key is that the request somehow identifies the file requested.
$pdfName = $this->_mapPdfIdToName($id);
// The path to the real pdf
$pdfFile = '/project/data/uploads/pdf/' . $pdfName;
// Disable rendering
$this->_helper->viewRenderer->setNoRender(true);
// Send the right mime headers for the content type
$this->getResponse()
->setBody('')
->setHeader('Cache-control', 'public') // needed for IE, I have read
->setHeader('Content-type', 'application/pdf')
->setHeader('Content-Disposition', sprintf('attachment; filename="%s"', $pdfName));
// Send the content
readfile($pdfFile);
}
Of course, some of this can be pushed down into service classes to keep the controller as thin as possible. Everyone has different tastes in this regard.
I confess that this code not completely tested, mostly trying to give the basic idea. If I have made a total bonehead error in here, please let me know.
Hope it helps!