I'm having quite a problem with viewing PDF in iOS. I want to be able to list user all chapters of a file and after he clicks one of them show this chapter directly in the view.
I now that I can get all chapters by:
PDFDocument* pdfDoc = [[PDFDocument alloc] initWithURL:... ];
PDFOutline* pdfOutline = [pdfDoc outlineRoot];
For now I was using webView, I was even able to write my own goToPage method but don't know how to do this feature. Maybe there is library I can use for this purpose or I can get information from PDFOutline object (I haven't found anything useful in documentation)?
I'm not sure why you think you're stuck because you're very close to what you want to do. You can check how many outline items there are and get all of them:
- (NSUInteger)numberOfChildren
returns the number of outline items and
- (PDFOutline *)childAtIndex:(NSUInteger)index
can be used to retrieve each item.
Once you have such an item, you can get its destination:
- (PDFDestination *)destination
If you read the documentation and the PDF specification, you'll see that an outline item can either have a destination or an action that specifies what needs to happen when it is executed (clicked).
You'll have to interpret what the destination means and use your gotoPage function to go to the correct page (PDFDestination has a "page" member that tells you exactly what page it refers to).
Related
I'd like to create an index view which shows a list of items followed by a 'view in app' button to download data directly into the app.
Solution 1. [Not a sulution] I think deepviewcta call is appropriated to use in a single product page. It doesn't look like suitable in my case, because it has to call deepview before calling deepviewcta.
Solution 2. I'm trying to construct the URL directly using 'dynamic' deeplink. The documentation says any additional query param appended will shows up in the initSession callback, but it doesn't work for me.
the construct link looks like this:
https://bnc.lt/a/key_test_kkkkkkkkkkkkkkkkkkkkkkk?has_app=yes&channel=character&my_list_id=0c56c4bc-fac9-412a-be19-c0feefe30d29
what I got in the callback only has following data
"+clicked_branch_link" = 0;
"+is_first_session" = 0;
in the callback, other params are just missing, I got:
url NSURL * #"my-app://open?link_click_id=197576253652400385" 0x00007fad90d47450
Any Other Solutions?
It turns out I was using live key in ios App while using test key in server end. So solution 2 works now.
Also for anyone want to do the same thing. For regular Branch Links, it is not possible to stay on the same page as the Branch link was clicked from. they suggest adding a $after_click_url to the Link's data. This key will tell the system to route to a particular web address after the Branch Link has been clicked.
Thanks for branch.io's support, they responded very quickly.
I'm trying to set the Visitor ID in Adobe Analytics through DTM.
Above the s_code I have:
var visitor = new Visitor("xxxx")
visitor.trackingServer = "xxx.xx.xx.omtrdc.net"
I've created a data element where the legacy code used to call the
Visitor.getInstance("xxxx");
and set the Visitor ID to %Visitor ID%
That's not working however, and my visitor ID is always just set to %Visitor ID% and obviously not reading any values. I'd really appreciate any input that someone can give me.
Thanks,
Mike
The Visitor ID pops s.visitorID and is in general related to visitor id, but is not the same as s.visitor which is what gets popped for the VisitorAPI integration. DTM does not currently have a built-in field for the s.visitor variable, so you will have to set it yourself within the config, either in the Library Management code editor (assuming you are opting to c/p the core lib and not the "Managed by Adobe" option) or else in the Custom Page Code section.
Since you are popping it in a data layer first, you can reference the data layer like this:
s.visitor = _satellite.getVar('Visitor ID');
NOTE: A separate potential issue you may have is with whether or not the Visitor object is available for your data element. Since data elements are the first thing to be evaluated by DTM, you will need to ensure that the VisitorAPI.js library is output before your top page DTM script include.
If this is a problem for you, or if you are wanting to host VisitorAPI.js within DTM, then you may need to adjust where you are popping that stuff. For example, place the VisitorAPI core code above the custom code as the first stuff within the data element, before:
var visitor = new Visitor("xxxx") visitor.trackingServer = "xxx.xx.xx.omtrdc.net
Or, don't use the data element at all. Instead, put the VisitorAPI code within the Adobe Analytics custom code or core lib section and pop all that stuff (aboove the s.visitor assignment). Or a number of other methods; point is, VisitorAPI stuff must be loaded before the data element can make use of it, same as it must be loaded before Adobe Analytics can make use of it.
So DTM is changing pretty fast and furious right now. They have a "Marketing Cloud Service ID" that works well. Before I used that, however, I did find a way to fix the code. Crayon Violent was right, as usual, that the problem was that the script wasn't available yet. I fixed this by putting the following code in between the VisitorAPI.js and the AppMeasurement stuff in the DTM managed library.
var aA = new AppMeasurement();
aA.visitorNamespace="companyname";
aA.visitor = Visitor.getInstance("companyname");
In addition, there were also some issues using my localhost for testing while trying to see if I had this correct or not. If you are having issues and think you have it correct, it may be worthwhile to elevate it to a different environment.
I have a view data source that uses a view key to access documents and show them in a repeat with var "posts". within the repeat I have a document data source with var "post" that gets's the the unid of the documents using posts.getUniversalID().
further down the repeat I have another document data source "newcomment" that is a response and take the parent id as: post.getDocument().getUniversalID()
below the newcomment data source I have an editbox and a submit button which saves the comment as a response to the "post" using newcomment.save()
Here is my problem
two people access the same xpage. personA enters the page and starts writing a comment to a post. in the same time personB creates a new post and submit it before personA submits the comment. What happens now is that the comments gets binded to the latest post and not to the post personA responded to.
I tried anothoher thing also, let's say there is 10 posts in that database. personA and personB access the xpages. personA start writing a comment to post number 8. at the same time personB creates two new posts in the database. when personA now submits the comment it seem to get bind to the same index which is now two posts up. but still index 8. which is ofcourse the wrong post.
If I change the repeat to "createControlsAtPageCreation" ie.e repeatControls=true the comment is attached to the correct post but then I run into another problem that the view is not updated to show the latest posts.
my repeat is wihtin a custom control that is loaded dynamically using the dynamic content control in extlib.
As information here is what I have found about the repeatControls settings
Setting the repeatControls property to true instructs the repeat control to create a new copy of its children for each iteration over the dataset.
When the Repeat control is configured with the property
repeatControls=“true” , it repeats its contents only once, at page load time
So my question here is that I do not understand what is going on. why is my comment attached to the wrong parent document? and is there a way I can prevent this and still have new posts displayed correctly
thanks for your help
Without the code it's a bit hard to imagine what exactly is going one here but this looks very similar to problem that I had with repeat control and value binding.
Long story short the problem was connecet to repeatControls property set to false. When it was like that data binding were working only for first element in collection - all data was somehow magically saved to this first object! I managed to get this working by using combination of dynamic content control rebuild and repeatControls set to true. Only then databindings were working property.
It seems like if You are repeating rendering only (and this is what repeatControls set to false do) the decoding phase of jsf lifecycle goes foobar.
Without your XSP markup, it's difficult to be absolutely definitive but it appears that you're app code is creating and persisting the datasources and components per row during page load - therefore increasing the overall size and complexity of the component tree also. You should alternatively try an approach that will lazy-load the datasource only when requested by the end-user (eg: edit / reply).
Refer to the XPages Extension Library demo application (XPagesExt.nsf) for examples that use such a dynamic approach. In particular, look at Core_InPlaceForm.xsp which demonstrates using the xe:inPlaceForm control within a xp:repeat. And also see Domino_ForumView.xsp which demonstrates using the xe:forumView and xe:forumPost controls to manage and visualize a hierarchical thread. Also consider the concurrency mode that best suits your requirements when it actually comes to saving any given post or comment (fail, createConflict, force, exception) and document locking for high contention situations. The above-mentioned controls all provide the highest level of dynamic control and datasource creation and destruction.
Please feel free to send me on a worked example database, where I can understand your exact use case - DM me or email me.
I am building an iPad application that displays PDFs, and I'd like to be able to display the table of contents and the let user navigate to the relevant pages.
I have invested several hours in research at this point, and it appears that since PDFKit is [not supported in iOS], my only option is to parse the PDF meta data manually.
I have looked at several solutions, but all of them are silent on one point - how to associate a page in the "outline" metadata with the real page number of the item. I have examined my PDF document with [the Voyeur tool] and I can see the outline in the tree.
[This solution] helped me figure out how to navigate down the Outline/A/S/D tree to find the "Dest" object, but it performs some kind of object comparison using [self.pages indexOfObjectIdenticalTo:destPageDic] that I don't understand.
I have read the [official PDF spec from adobe], and section "12.3.2.3 Named Destinations" describes the way that an outline entry can point to a page:
Instead of being defined directly with
the explicit syntax shown in Table
151, a destination may be referred to
indirectly by means of a name object
(PDF 1.1) or a byte string (PDF 1.2).
And continues with this line which is utterly incomprehensible to me:
The value of this entry shall be a
dictionary in which each key is a
destination name and the corresponding
value is either an array defining the
destination, using the syntax shown in
Table 151, or a dictionary with a D
entry whose value is such an array.
This refers to page 366, "12.3.2.2 Explicit Destinations" where a table describes a page: "In each case, page is an indirect reference to a page object"
So is the result of CGPDFDocumentGetPage or CGPDFPageGetDictionary an "indirect reference to a page object"?
I found a [thread on lists.apple.com] that discusses. [This comment] implies that you can compare the address (in memory?) of a CGPDFPageGetDictionary object for a given page and compare it to the pages in the "Outline" tree of the PDF meta data.
However, when I look at the address of page objects in the Outline tree and compare them to addresses they are never the same. The line used in that thread "TTDPRINT(#"%d => %p", k+1, dict);" is printing "dict" as a pointer in memory.. there's no reason to believe that an object returned there would be the same as one returned somewhere else.. they'd be in different places in memory!
My last hope was to look at the source code from apple's command line "outline" tool [mentioned in this book] (as [suggested by this thread]), but I can't find it anywhere.
Bottom line - does anyone have some insight into how PDF outlines work, or know of some open source code (preferably objective-c) that reads PDF outlines?
ARGG: I had all kinds of links posted here, but apparently a new user can only post one link at a time
The result of CGPDFDocumentGetPage is the same as an indirect page reference you get when resolving a destination in an outline item. Both are essentially dictionaries and you can compare them using ==. When you have a CGPDFDictionaryRef that you want to know the page number of, you can do something like this:
CGPDFDocumentRef doc = ...;
CGPDFDictionaryRef outlinePageRef = ...;
for (int p=1; p<=CGPDFDocumentGetNumberOfPages(doc); p++) {
CGPDFPageRef page = CGPDFDocumentGetPage(doc, p);
if (page == outlinePageRef) {
printf("found the page number: %i", p);
break;
}
}
An explicit destination however is not a page, but an array with the first element being the page. The other elements are the scroll position on the page etc.
I'm trying to build an addon that will observe and collect XHR and image responses received on a page and make them available to page script (on that page) for further inspection.
In my 'http-on-examine-response' observer code, I push URLs I'm interested in, into an array for their associated window, into an object, something like this -
myWindowId = resp.outerWindowID+'-'+resp.currentInnerWindowID;
storedResponses[myWindowId].push(subject.URI.spec);
(I thought that approach may be better than using tab references to identify unique source windows)
The relevant arrays are updated automatically as any page makes a request.
I'd like to be able to query the relevant array from page script or a bookmarklet at any time.
Should I set up port.on..., or postMessage() communication between the page/bookmarklet, content script and extension, or use a pageMod to write the appropriate array directly to an unsafeWindow global object on the relevant page?
I couldn't figure out how to make a pageMod write a specific array to a specific page as soon as the new responses were observed.
Full source is here -
https://builder.addons.mozilla.org/addon/1064905/latest/
I think it's all working, apart from getting the data back on to the page.
With help from Wladimir Palant, I found that XPCNativeWrapper.unwrap() is defined and does what I needed from the SDK module context. It allowed me to set variables directly in a window from my addon.
More info about wrappers here -
https://developer.mozilla.org/en/XPCNativeWrapper