### Platforms affected
iOS and Android
### What does this PR do?
Fixes the behaviour of `beforeload` to resolve the problem with POST requests outlined in #359.
The `beforeload` parameter has been changed from taking only a boolean (`yes` or not defined) to a discrete string with possible values of `get`, `post`, or `yes` which correspond to request types of GET, POST or GET&POST respectively. The `README.md` has been updated to reflect this.
Note that use of `beforeload` to intercept POST requests is currently not supported on Android or iOS, so if `beforeload=yes` is specified and a POST request is detected as the HTTP request method, `beforeload` behaviour will not be applied. If `beforeload=post` is specified, a `loaderror` event will be dispatched which states that POST requests are not yet supported.
#### Notes for Android
The `shouldOverrideUrlLoading()` override method has been updated to support the [new method interface added in API 24 / Android 7][1] which receives the `WebResourceRequest` instead of just the `String url`, enabling the HTTP method of the request to be determined. The [deprecated method interface][2] has also been preserved for API <=23, but in this case the HTTP method cannot be determined so is passed as null.
Also note that due to a [Chromium bug](https://bugs.chromium.org/p/chromium/issues/detail?id=155250), `shouldOverrideUrlLoading()` is currently not called for POST requests. It's possible this may be resolved in a future Chromium version in the Android System Webview (given that this is now self-updating and independent of Android version since Android 5.0) - in prospective anticipation of this, code to handle POST requests has been added to `shouldOverrideUrlLoading()`.
However, it seems more likely that this won't be resolved any time soon given that [a Chromium dev said](https://bugs.chromium.org/p/chromium/issues/detail?id=155250#c39):
> We're looking at implementing a better way to handle request interception in a future OS version. There's no way to just "fix" this, the API doesn't accommodate this usage at all. This will not be something you can use any time soon.
Therefore if we want to go ahead and use `beforeload` to intercept request types other than GET, it's likely we'll instead need to use the `shouldInterceptRequest()` method override. As with `shouldOverrideUrlLoading()`, there are a two variants: the [new method interface][3] added in API 21 / Android 5.0 which which receives the `WebResourceRequest` object and the [deprecated one][4] which receives only `String url`. If we want to determine the HTTP request method, we'll need to use the new implementation. This has been empirically tested and *is* called for POST requests so would allow the possibility to intercept, delay, modify and send the POST request and its data via `beforeload`.
Both `shouldInterceptRequest()` method interfaces have been exposed in the Android implentation for potential future use but they currently do nothing other than return the unadulterated request object.
### What testing has been done on this change?
Manual testing of POST and GET requests on both platforms using a test app container:
https://github.com/dpa99c/cordova-plugin-inappbrowser-test
[1]: https://developer.android.com/reference/android/webkit/WebViewClient.html#shouldOverrideUrlLoading(android.webkit.WebView,%20android.webkit.WebResourceRequest)
[2]: https://developer.android.com/reference/android/webkit/WebViewClient.html#shouldOverrideUrlLoading(android.webkit.WebView,%20java.lang.String)
[3]: https://developer.android.com/reference/android/webkit/WebViewClient.html#shouldInterceptRequest(android.webkit.WebView,%20android.webkit.WebResourceRequest)
[4]: https://developer.android.com/reference/android/webkit/WebViewClient.html#shouldInterceptRequest(android.webkit.WebView,%20java.lang.String)
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### Platforms affected
Android
iOS (both UIWebView & WKWebView implementations)
### What does this PR do?
Adds support for [postMessage API](https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage) enabling pages loaded into the InappBrowser to post messages back to the parent Webview of the Cordova app.
For example, sending event messages associated with UI interactions such as button clicks from the wrapped page back to the parent app Webview.
### What testing has been done on this change?
Automated tests have been extended to cover the `message` event.
### Checklist
- [x ] Commit message follows the format: "GH-3232: (android) Fix bug with resolving file paths", where CB-xxxx is the JIRA ID & "android" is the platform affected.
- [ x] Added automated test coverage as appropriate for this change.
For both UIWebView and WKWebView implementations on iOS.
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### Platforms affected
iOS
### What does this PR do?
Fixes `beforeload` event (introduced by #276) for iOS
### What testing has been done on this change?
Tested both allow & deny loading of URL with both iOS implementations in [test container app](https://github.com/dpa99c/cordova-plugin-inappbrowser-wkwebview-test) (ignore its README).
- To test with UIWebView use options: `beforeload=yes,usewkwebview=no`
- To test with WKWebView use options: `beforeload=yes,usewkwebview=yes`
### Checklist
- [x] [Reported an issue](http://cordova.apache.org/contribute/issues.html) in the JIRA database
- [x] Commit message follows the format: "CB-3232: (android) Fix bug with resolving file paths", where CB-xxxx is the JIRA ID & "android" is the platform affected.
- [x] Added automated test coverage as appropriate for this change.
closes#349
### Platforms affected
iOS
### What does this PR do?
fix issue[ #340](https://github.com/apache/cordova-plugin-inappbrowser/issues/340) iOS CDVWKInAppBrowser evaluateJavascript method randomly gets blocked on iOS 12
### What testing has been done on this change?
manual testing
### Checklist
- [x] [Reported an issue](http://cordova.apache.org/contribute/issues.html) in the JIRA database
- [x] Commit message follows the format: "CB-3232: (android) Fix bug with resolving file paths", where CB-xxxx is the JIRA ID & "android" is the platform affected.
- [ ] Added automated test coverage as appropriate for this change.
On Android, if the app defines an intent-filter for a given URL, and
then tries to use inappbrowser to launch that URL via the _system
target, the default handler for that intent is the app itself.
That behavior can lead to circular loops, and ultimately is not what the
developer wants -- the link should be launched in a browser.
Because there is no easy way to find the "default" system browser on a
device, this solution will do two things:
1) Check if the app is one of the targets for this intent
2) If so, create a custom chooser with all other targets, excluding the
current app.
If the app is not a target, then the current (existing) behavior is
preserved.
The only real "downside" to this approach is that a default handler can no longer be set for these URLs within the app, and a chooser will be shown each time the user taps a link that opens in a new browser.
Fixes https://issues.apache.org/jira/browse/CB-10795
When calling `.open()` with a target of `_system`, the InAppBrowser on iOS is both launching the URL in the system browser AND also broadcasting to open the URL within the app (calling handleOpenURL). The latter behavior is problematic in many circumstances (e.g. when you want to explicitly open a link in a browser which is a universal link handled by the app).
This commit attempts to address this by checking the return value from openURL -- if it does not open the URL successfully, then (and only then) the code falls back to broadcasting the event within the app to handleOpenURL.
check for whitelisting custom schemes via a new "AllowedSchemes"
preference configuration item. Allows custom schemes like
"mycoolapp://" or "wevotetwitterscheme://"
In file inappbrowser.js: Added new "customscheme" channel.
check for whitelisting custom schemes via a new "AllowedSchemes"
preference configuration item. Allows custom schemes like
"mycoolapp://" or "wevotetwitterscheme://"
In file inappbrowser.js: Added new "customscheme" channel.
"AllowedSchemes" in a new preference configuration item.
There is a new check in shouldOverrideUrlLoading, to allow whitelisted
custom schemes like "mycoolapp://"
inappbrowser.js: Added "customscheme" channel.
"AllowedSchemes" in a new preference configuration item.
There is a new check in shouldOverrideUrlLoading, to allow whitelisted
custom schemes like "mycoolapp://"
inappbrowser.js: Added "customscheme" channel.
