@Hugo
I think you can pass the "allow-files-access-from-files" argument to the commandLineArgs property... something like:
var kvp:Object = {}; kvp.key = "allow-files-access-from-files"; kvp.value = "1"; settings.cacheEnabled = true; settings.cef.commandLineArgs.push(kvp);
I did something similar to allow CEF access my webcam and that worked, so I guess it's something similar here. Not sure, but give it a try if you want.
Thank you for your tip.
I already tested that but didn't worked.
Btw: I'm loading my page thru html string (this html string has references to local JS files).
I saw that CefSharp already supports this:
BrowserSettings browserSettings = new BrowserSettings();
browserSettings.FileAccessFromFileUrlsAllowed = true;
browserSettings.UniversalAccessFromFileUrlsAllowed = true;
Perhaps we only need a method wrapper on the final ANE.
You can't reference file system files/urls when using loadHTML. That's not loadHTML's purpose.
No flags are going to magically change that.
You load local html files using loadFileURL() Those pages can then reference other local js/css/images (usually as a relative url).
Is there a reason why you used loadHTML over loadFileURL ?
FYI - All that BrowserSettings does is reference the cli args such as allow-file-access-from-files. It's just a helper.
https://peter.sh/experiments/chromium-command-line-switches/#allow-file-access-from-files
"Is there a reason why you used loadHTML over loadFileURL ?"
It's a generated HTML with JS for a report engine so this is not a fixed page.
Perhaps a external page (resource) with JS injected can do the trick.
tuarua, Thank you - THANK YOU - for all the work you've done on WebViewANE! I'll be contributing a substantial amt of $$ for your efforts. Keep it up!
Ran across an issue on Windows (Surface Pro 4 && VM) with the ANE; I'm able to load the webView & interact with it. However, after the it loads, the UI/dpi scaling goes all wonky. See below for pics. Notice how the application window gets much, much smaller.
Any idea what's going on? Any fixes?
BEFORE WebView is loaded
AFTER WebView is loaded
@Thomas - just so I understand correctly
You are saying that when the webView loads the AIR window resizes by itself - essentially to half it's original size?? The before and after are not different compiles??
If so that is very unexpected.
Have you any other window handling/stage resize events??
You mention a Surface Pro but also a VM - Is the app running in a VM?, on a mac running Windows or on a Surface Pro?
I'm trying to understand what the resolutions involved are.
This is related to HighDPI in some way.
I imagine under Settings App Scaling is set to 150% or 200% ??
And that you have set <requestedDisplayResolution>high</requestedDisplayResolution> in your app-xml ??
It would be useful to replicate in a simple project - and upload somewhere so I can see the settings used.
@Tuarua - yes, I am saying that the AIR window resizes all by itself when it loads the WebView on Windows only. The before & after pics are not different compiles. This doesn't occur on macOS.
Yes, I have other window handling/stage resize events, but I disabled them && this still occurs.
I assumed it was BIAD (b/c I'm a dork), but it happens on your example desktop project too with my windows machines. I'll be happy to provide you with a link to a GH repo with project where this occurs (if you'd like), but I believe if you mimic the display settings below, then you'll see it too.
The VM is Parallels Windows 10 running on Macbook Pro Mid 2015 Retina Display, 15-inch.
The Windows Tablet is a Surface Pro 4
No, I don't use <requestedDisplayResolution>high</requestedDisplayResolution> in AIR manifest on Windows. Doing so will break the webView (see below) & its positioning relative to other parts of UI.
Windows <requestedDisplayResolution>high</requestedDisplayResolution>
I'd be happy to record & upload a video so you may see it in action.
It's almost like the WebView causes the app window revert to a 100% scaling, while the rest of the Desktop remains at the original scaling set by the user.
btw, if you provide me with an estimate of how much $$ if would take to fix this bug & you can get it fixed in the next 14 days, then if you're interested, I might be able to make a donation in that amt.
It's ok I don't need a video. I see the problem.
Looking at your last screenshot (where you have set requestedDisplayResolution=high)
It appears to not exhibit the weird window resizing??? but IS causing the webview to be positioned and sized incorrectly?
I came across this before with App Scaling - but never had a res > 1920 so never saw your problem.
So let's say we therefore must use requestedDisplayResolution=high but need to sort the webview.
To do this we need to calculate what the App Scaling value is.
If you also use this ANE https://github.com/tuarua/WindowsHelperANE we can get the display resolution and Capabilities.screenResolutionX to work out this value.
Then we can do a * scaleFactor on the x,y, width and height of the webView viewport.
windowsHelper = new WindowsHelperANE(); windowsHelper.init(); var displayDevices:Vector.<DisplayDevice> = windowsHelper.getDisplayDevices(); var scaleFactor:Number = 1.0; for each (var dd:DisplayDevice in displayDevices) { if (dd.isPrimary && dd.isActive) { scaleFactor = dd.currentDisplaySettings.width / Capabilities.screenResolutionX; //eg 1.75 break; } } //replace with your X,Y,W,H var viewPort:Rectangle = new Rectangle({X} * scaleFactor, {Y} * scaleFactor, {W} * scaleFactor, {H} * scaleFactor); webView.init(WebViewANESample.target.stage, viewPort, ....);
I have tested the above and it works on my Win10 at 150%.
I don't have a really high-res device to test 400% for eg but if you confirm the above works for you I will look into adding this scaleFactor detection directly into the webViewANE so it automagically is applied when needed.
P.S. the windowsHelperANE is similar to WebView - it uses C#, so copy WindowsHelperANELib.dll to the AIR bin folder like you did with CefSharp etc
thanks for the quick reply!
I'm trying out the WindowsHelperANE but having trouble getting the WindowsHelperANE Example working...can't find 'com.tuarua.FreSharpExampleANE' extension. I don't see ANE named 'FreSharpExampleANE' anywhere in the '/WindowsHelperANE/native_extension/' folder.
What am I missing?
EDIT:
nvm about the FreSharpExampleANE...looks like I don't need it for WindowsHelperANE to function properly.
oops, yeah. The references to that ANE shouldn't be there - you don't need that ANE.
the method works on both my VM & the crazy surface pro 4 resolutions! thanks so much!!
will contribute $100 to your development efforts later tonight or tomorrow. It doesn't cover your expenses but hopefully puts a dent in them.
thanks again! 
That's cool that all works ok. Please check on mac too with requestedDisplayResolution=high.
I'll build something more elegant into the ANE to detect DPI - without having to use a separate ANE. Been meaning to resolve and your debugging helped lots.
I'll update here when it's available (in the next week for sure)
Thanks for the contribution promise - much appreciated.
it works great on macOS when requestedDisplayResolution is true. No wonky UI scaling issues.
I'm glad my debugging helped; projects of this scope/magnitude are incredibly complex. Personally, I was shocked by the quality of the AS3/Kotlin/JS code I saw in your repos as well as the level of detail in your documentation.
btw, in regards to your WebView_Mobile Android ANE, there's a potential for a resource conflict (leading to a packaging error). This is an edge case tho (I think). After I get a few high-priority items out the door, I'll take a deeper look, try & nail down the specific problem && convey my findings to you.
Awesome job here!
I continue testing this ANE.
The purpose is to use a JS report engine inside my Flex/AIR desktop app.
I already can load the report engine and also set the report definition using the injectJS method.
Everything seems to work at a first look and 0 erros on the web console however the report viewer have a print button and a export to file button.
Both buttons don't work inside the ANE and 0 erros on the web console (they work as expected on a normal web browser).
There is any permission that I must to enabled ?
PS: I'm tessting on a macOS ?
All: The GitHub repo grew very very big. I've cleared a lot of the old blobs from history. Please do a fresh clone.
Thomas: I've added HiDPI detection into the ANE. Pass true at the end of init to enable.
Please give it a test.
webView.init(WebViewANESample.target.stage, viewPort, "http://www.youtube.com", settings, 1.0, 0xF1F1F1, 1.0, true);
Hugo:
These are unrelated to permissions.
1. Print
print is broken in WKWebview. It prints blank pages. So I didn't implement the delegate which intercepts print.
2. Download links/non-web file types
You don't say what type of file the export button links to.
Anyway, WKWebview supports a certain set of files. To handle anything else code has to be written to:
intercept url
display dialog
download file
WKWebview is not a full browser - things like dialogs, file downloading all have to be written and it's a fair amount of code.
@tuarua:
Honestly, I don't know how exactly how to answer that question:
It's this report engine that I'm talking about: http://demo.stimulsoft.com/#Js
I can successfully load the report engine inside your ANE and also inject JS code for the dynamic JSON data/report definition.
The print and save to PDF use the native browser dialogs that simple don't happen nothing when I press the buttons (the same HTML with the JS) works directly on the browser.
So, for your answer, this is not supported, could be with implementation but it's to match work, correct ?
I had a quick look at that site.
They are generating blob urls for the save + print.
e.g.
blob:http://js.stimulsoft.com/45496392-6ef8-457a-8f98-c87dc2893c0e
The bad news is that blob urls are not supported in WKWebview.
https://bugs.webkit.org/show_bug.cgi?id=174076
And even if you can intercept the url, there is no way in Cocoa of downloading a blob url using ObjectiveC / Swift / AS3.
So there is no way for me to support this website at all for these functions.
@tuarua
Those are bad news indeed.
Thank you very match for the explanation.
So I know now that is going on to find out (if possible) a workaround.
tuarua, my apologies for not getting back soonmer & thanks for taking a look at this so quickly!
I did a fresh clone & it doesn't appear to be sizing correctly.
This is the mac, Win10 at 175% ??
Just to check after you cloned did you replace CefSharpLib.dll in your AIR bin folder with the latest version in cef_sharp_libs_x86 ??
it was BIAD (b/c I'm a dork).
my bad - I copied the DLLs from x86 into AIR 27 but was referencing x64 (AIR 26 beta) in my debug configuration. This is what happens when I work on this stuff during conference calls!
in any case, it works now. Thanks!!
@tuarua
I manage to solve my issue related to save a binary file.
Export the report to a variable without prompt to save (a native feature from the report engine).
Then simply pass the binary (array of ints) to AS3, then on AS3 side, converted to bytearray and then save to disk 
@tuarua
I'm facing now a new issue.
I can load now my report engine with 0 console errors and I can export to PDF now (passing the byte array from JS to AS3 and save from there).
The report requires 2 variables: a xml string that represents the report layout and a json string that represents the data.
I can load the xml (using inject function) sucessfully and see the layout rendered on the screen.
But when I pass the json data, I have issues.
If I fill the json from an html text input ouside of the ANE, I can see the data on the report.
If I do the same thing inside the ANE I get an EOF console error.
If I try to inject the json from AS3 > JS, I also got errors.
From the ANE debug tool, I think that inside the ANE the ( " ) characteres are replaced by ( \" ) that not representes a valid json, so the error.
Do you know any issue related with ( " ) and I should to make a special treatment inside my html file (for example replace all \" to " or there is a better way to do ?
I would like to avoid save the json string to a file on AS3 side and reload on JS file.
There's no issue. The string is just backslash escaped.
You can unescape it using built in JS funcs.
JSON.stringify(JSON.parse("{\"name\": \"Bob\"}"))
@tuarua,
After a few more tests, turns out that the issue is not related with a special char but the maximum JS injected (at least seems to be it) !
I'm injecting the json data on my HTML file that is my report viewer using your ANE:
webView.injectScript("data = '" + myData + "'");
data is a JS variable and myData is my AS3 variable that is a json long string (more than 25000 chars and could be more).
Passing more or less until 2500 characters from AS3 to JS using injectScript seems that works but much more than that don't work.
Are you aware of any injectScript limit ?
If you're saying 25,000 characters then yes there is a limit of 32,768 bytes for Strings sent between AIR and any ANE.
Because the conversion uses C type uint8_t array for Strings.
FREGetObjectAsUTF8(FREObject object, uint32_t* length, const uint8_t** value)
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