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android/src/main/kotlin/com/authgear/flutter/WebKitWebViewActivity.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,269 @@ | ||
| package com.authgear.flutter | ||
|
|
||
| import android.annotation.TargetApi | ||
| import android.app.Activity | ||
| import android.content.Context | ||
| import android.content.Intent | ||
| import android.graphics.drawable.ColorDrawable | ||
| import android.graphics.drawable.Drawable | ||
| import android.net.Uri | ||
| import android.os.Build | ||
| import android.os.Bundle | ||
| import android.view.Menu | ||
| import android.view.MenuItem | ||
| import android.webkit.* | ||
| import androidx.annotation.* | ||
| import androidx.appcompat.app.ActionBar | ||
| import androidx.appcompat.app.AppCompatActivity | ||
| import androidx.core.content.res.ResourcesCompat | ||
| import androidx.core.graphics.drawable.DrawableCompat | ||
|
|
||
| class WebKitWebViewActivity: AppCompatActivity() { | ||
| companion object { | ||
| private const val MENU_ID_CANCEL = 1 | ||
| private const val KEY_OPTIONS = "KEY_OPTIONS" | ||
| private const val KEY_WEB_VIEW_STATE = "KEY_WEB_VIEW_STATE" | ||
| private const val TAG_FILE_CHOOSER = 1 | ||
|
|
||
| fun createIntent(ctx: Context, options: Options): Intent { | ||
| val intent = Intent(ctx, WebKitWebViewActivity::class.java) | ||
| intent.putExtra(KEY_OPTIONS, options.toBundle()) | ||
| return intent | ||
| } | ||
| } | ||
|
|
||
| private lateinit var mWebView: WebView | ||
| private var result: Uri? = null | ||
| private val handles = StartActivityHandles<ValueCallback<Array<Uri>>>() | ||
|
|
||
| class Options { | ||
| var url: Uri | ||
| var redirectURI: Uri | ||
| var actionBarBackgroundColor: Int? = null | ||
| var actionBarButtonTintColor: Int? = null | ||
|
|
||
| constructor(url: Uri, redirectURI: Uri) { | ||
| this.url = url | ||
| this.redirectURI = redirectURI | ||
| } | ||
|
|
||
| internal constructor(bundle: Bundle) { | ||
| this.url = bundle.getParcelable("url")!! | ||
| this.redirectURI = bundle.getParcelable("redirectURI")!! | ||
| if (bundle.containsKey("actionBarBackgroundColor")) { | ||
| this.actionBarBackgroundColor = bundle.getInt("actionBarBackgroundColor") | ||
| } | ||
| if (bundle.containsKey("actionBarButtonTintColor")) { | ||
| this.actionBarButtonTintColor = bundle.getInt("actionBarButtonTintColor") | ||
| } | ||
| } | ||
|
|
||
| fun toBundle(): Bundle { | ||
| val bundle = Bundle() | ||
| bundle.putParcelable("url", this.url) | ||
| bundle.putParcelable("redirectURI", this.redirectURI) | ||
| this.actionBarBackgroundColor?.let { | ||
| bundle.putInt("actionBarBackgroundColor", it) | ||
| } | ||
| this.actionBarButtonTintColor?.let { | ||
| bundle.putInt("actionBarButtonTintColor", it) | ||
| } | ||
| return bundle | ||
| } | ||
| } | ||
|
|
||
| private class MyWebViewClient constructor(private val activity: WebKitWebViewActivity) : | ||
| WebViewClient() { | ||
|
|
||
| @TargetApi(Build.VERSION_CODES.N) | ||
| override fun shouldOverrideUrlLoading( | ||
| view: WebView?, | ||
| request: WebResourceRequest? | ||
| ): Boolean { | ||
| val uri = request?.url!! | ||
| if (this.shouldOverrideUrlLoading(uri)) { | ||
| return true | ||
| } | ||
| return super.shouldOverrideUrlLoading(view, request) | ||
| } | ||
|
|
||
| @SuppressWarnings("deprecation") | ||
| override fun shouldOverrideUrlLoading(view: WebView?, url: String?): Boolean { | ||
| val uri = Uri.parse(url!!)!! | ||
| if (this.shouldOverrideUrlLoading(uri)) { | ||
| return true | ||
| } | ||
| return super.shouldOverrideUrlLoading(view, url) | ||
| } | ||
|
|
||
| private fun shouldOverrideUrlLoading(uri: Uri): Boolean { | ||
| if (this.checkRedirectURI(uri)) { | ||
| return true; | ||
| } | ||
| return false; | ||
| } | ||
|
|
||
| private fun checkRedirectURI(uri: Uri): Boolean { | ||
| val redirectURI = this.activity.getOptions().redirectURI | ||
| val withoutQuery = this.removeQueryAndFragment(uri) | ||
| if (withoutQuery.toString() == redirectURI.toString()) { | ||
| this.activity.result = uri | ||
| this.activity.callSetResult() | ||
| this.activity.finish() | ||
| return true | ||
| } | ||
| return false; | ||
| } | ||
|
|
||
| private fun removeQueryAndFragment(uri: Uri): Uri { | ||
| return uri.buildUpon().query(null).fragment(null).build() | ||
| } | ||
| } | ||
|
|
||
| private class MyWebChromeClient constructor(private val activity: WebKitWebViewActivity) : | ||
| WebChromeClient() { | ||
|
|
||
| @RequiresApi(Build.VERSION_CODES.LOLLIPOP) | ||
| override fun onShowFileChooser( | ||
| webView: WebView?, | ||
| filePathCallback: ValueCallback<Array<Uri>>?, | ||
| fileChooserParams: FileChooserParams? | ||
| ): Boolean { | ||
| val handle = StartActivityHandle(TAG_FILE_CHOOSER, filePathCallback!!) | ||
| val requestCode = this.activity.handles.push(handle) | ||
| val intent = fileChooserParams!!.createIntent() | ||
| this.activity.startActivityForResult(intent, requestCode) | ||
| return true | ||
| } | ||
| } | ||
|
|
||
| override fun onCreate(savedInstanceState: Bundle?) { | ||
| super.onCreate(savedInstanceState) | ||
|
|
||
| val options = this.getOptions() | ||
|
|
||
| // Do not show title. | ||
| supportActionBar?.setDisplayShowTitleEnabled(false) | ||
|
|
||
| // Configure navigation bar background color. | ||
| options.actionBarBackgroundColor?.let { | ||
| supportActionBar?.setBackgroundDrawable(ColorDrawable(it)) | ||
| } | ||
|
|
||
| // Show back button. | ||
| supportActionBar?.displayOptions = ActionBar.DISPLAY_SHOW_HOME or ActionBar.DISPLAY_HOME_AS_UP | ||
|
|
||
| // Configure the back button. | ||
| var backButtonDrawable = getDrawableCompat(R.drawable.ic_arrow_back) | ||
| if (options.actionBarButtonTintColor != null) { | ||
| backButtonDrawable = | ||
| tintDrawable(backButtonDrawable, options.actionBarButtonTintColor!!) | ||
| } | ||
| supportActionBar?.setHomeAsUpIndicator(backButtonDrawable) | ||
|
|
||
| // Configure web view. | ||
| this.mWebView = WebView(this) | ||
| this.setContentView(this.mWebView) | ||
| this.mWebView.setWebViewClient(MyWebViewClient(this)) | ||
| this.mWebView.setWebChromeClient(MyWebChromeClient(this)) | ||
| val webSettings: WebSettings = this.mWebView.getSettings() | ||
| webSettings.javaScriptEnabled = true | ||
|
|
||
| if (savedInstanceState == null) { | ||
| this.mWebView.loadUrl(options.url.toString()) | ||
| } | ||
| } | ||
|
|
||
| override fun onSaveInstanceState(outState: Bundle) { | ||
| super.onSaveInstanceState(outState) | ||
| val webViewBundle = Bundle() | ||
| this.mWebView.saveState(webViewBundle) | ||
| outState.putBundle(KEY_WEB_VIEW_STATE, webViewBundle) | ||
| } | ||
|
|
||
| override fun onRestoreInstanceState(savedInstanceState: Bundle) { | ||
| super.onRestoreInstanceState(savedInstanceState) | ||
| val bundle = savedInstanceState.getBundle(KEY_WEB_VIEW_STATE) | ||
| if (bundle != null) { | ||
| this.mWebView.restoreState(bundle) | ||
| } | ||
| } | ||
|
|
||
| override fun onBackPressed() { | ||
| if (mWebView.canGoBack()) { | ||
| mWebView.goBack() | ||
| } else { | ||
| callSetResult() | ||
| super.onBackPressed() | ||
| } | ||
| } | ||
|
|
||
| override fun onCreateOptionsMenu(menu: Menu): Boolean { | ||
| val options = getOptions() | ||
|
|
||
| // Configure the close button. | ||
| var drawable = getDrawableCompat(R.drawable.ic_close) | ||
| if (options.actionBarButtonTintColor != null) { | ||
| drawable = tintDrawable(drawable, options.actionBarButtonTintColor!!) | ||
| } | ||
| menu.add(Menu.NONE, MENU_ID_CANCEL, Menu.NONE, android.R.string.cancel) | ||
| .setIcon(drawable) | ||
| .setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS) | ||
| return super.onCreateOptionsMenu(menu) | ||
| } | ||
|
|
||
| override fun onOptionsItemSelected(@NonNull item: MenuItem): Boolean { | ||
| if (item.getItemId() === android.R.id.home) { | ||
| onBackPressed() | ||
| return true | ||
| } | ||
| if (item.getItemId() === MENU_ID_CANCEL) { | ||
| callSetResult() | ||
| finish() | ||
| return true | ||
| } | ||
| return super.onOptionsItemSelected(item) | ||
| } | ||
|
|
||
| override fun onActivityResult(requestCode: Int, resultCode: Int, @Nullable data: Intent?) { | ||
| super.onActivityResult(requestCode, resultCode, data) | ||
| val handle = handles.pop(requestCode) | ||
| ?: return | ||
| when (handle.tag) { | ||
| TAG_FILE_CHOOSER -> when (resultCode) { | ||
| Activity.RESULT_CANCELED -> handle.value.onReceiveValue(null) | ||
| Activity.RESULT_OK -> if (data != null && data.data != null) { | ||
| handle.value.onReceiveValue(arrayOf(data.data!!)) | ||
| } else { | ||
| handle.value.onReceiveValue(null) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private fun getOptions(): Options { | ||
| val bundle: Bundle = this.intent.getParcelableExtra(KEY_OPTIONS)!! | ||
| return Options(bundle) | ||
| } | ||
|
|
||
| private fun callSetResult() { | ||
| if (this.result == null) { | ||
| this.setResult(Activity.RESULT_CANCELED) | ||
| } else { | ||
| val intent = Intent() | ||
| intent.data = this.result | ||
| this.setResult(Activity.RESULT_OK, intent) | ||
| } | ||
| } | ||
|
|
||
| private fun getDrawableCompat(@DrawableRes id: Int): Drawable { | ||
| return ResourcesCompat.getDrawable(resources, id, null)!! | ||
| } | ||
|
|
||
| private fun tintDrawable(drawable: Drawable, @ColorInt color: Int): Drawable { | ||
| val newDrawable: Drawable = | ||
| DrawableCompat.wrap(drawable).constantState!!.newDrawable().mutate() | ||
| DrawableCompat.setTint(newDrawable, color) | ||
| return newDrawable | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| <vector xmlns:android="http://schemas.android.com/apk/res/android" | ||
| android:width="24dp" | ||
| android:height="24dp" | ||
| android:viewportWidth="960" | ||
| android:viewportHeight="960" | ||
| android:tint="?attr/colorControlNormal" | ||
| android:autoMirrored="true"> | ||
| <path | ||
| android:fillColor="@android:color/white" | ||
| android:pathData="M313,520L537,744L480,800L160,480L480,160L537,216L313,440L800,440L800,520L313,520Z"/> | ||
| </vector> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| <vector xmlns:android="http://schemas.android.com/apk/res/android" | ||
| android:width="24dp" | ||
| android:height="24dp" | ||
| android:viewportWidth="960" | ||
| android:viewportHeight="960" | ||
| android:tint="?attr/colorControlNormal"> | ||
| <path | ||
| android:fillColor="@android:color/white" | ||
| android:pathData="M256,760L200,704L424,480L200,256L256,200L480,424L704,200L760,256L536,480L760,704L704,760L480,536L256,760Z"/> | ||
| </vector> |
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