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package com.pitchedapps.frost.web
import android.content.Context
import android.graphics.Bitmap
import android.webkit.WebResourceRequest
import android.webkit.WebResourceResponse
import android.webkit.WebView
import android.webkit.WebViewClient
import com.pitchedapps.frost.activities.LoginActivity
import com.pitchedapps.frost.activities.MainActivity
import com.pitchedapps.frost.activities.SelectorActivity
import com.pitchedapps.frost.facebook.FACEBOOK_COM
import com.pitchedapps.frost.facebook.FB_URL_BASE
import com.pitchedapps.frost.facebook.FbCookie
import com.pitchedapps.frost.injectors.*
import com.pitchedapps.frost.utils.*
import io.reactivex.subjects.Subject
/**
* Created by Allan Wang on 2017-05-31.
*
* Collection of webview clients
*/
/**
* The base of all webview clients
* Used to ensure that resources are properly intercepted
*/
open class BaseWebViewClient : WebViewClient() {
override fun shouldInterceptRequest(view: WebView, request: WebResourceRequest): WebResourceResponse?
= shouldFrostInterceptRequest(view, request)
}
/**
* The default webview client
*/
open class FrostWebViewClient(val webCore: FrostWebViewCore) : BaseWebViewClient() {
val refreshObservable: Subject<Boolean> = webCore.refreshObservable
override fun onPageStarted(view: WebView, url: String, favicon: Bitmap?) {
super.onPageStarted(view, url, favicon)
L.i("FWV Loading $url")
// L.v("Cookies ${CookieManager.getInstance().getCookie(url)}")
refreshObservable.onNext(true)
if (!url.contains(FACEBOOK_COM)) return
if (url.contains("logout.php")) FbCookie.logout(Prefs.userId, { launchLogin(view.context) })
else if (url.contains("login.php")) FbCookie.reset({ launchLogin(view.context) })
}
fun launchLogin(c: Context) {
if (c is MainActivity && c.cookies().isNotEmpty())
c.launchNewTask(SelectorActivity::class.java, c.cookies())
else
c.launchNewTask(LoginActivity::class.java)
}
override fun onPageFinished(view: WebView, url: String) {
super.onPageFinished(view, url)
L.i("Page finished $url")
if (!url.contains(FACEBOOK_COM)) {
refreshObservable.onNext(false)
return
}
view.jsInject(
CssAssets.ROUND_ICONS.maybe(Prefs.showRoundedIcons),
CssHider.PEOPLE_YOU_MAY_KNOW.maybe(!Prefs.showSuggestedFriends && Prefs.pro),
CssHider.ADS.maybe(!Prefs.showFacebookAds && Prefs.pro)
)
onPageFinishedActions(url)
}
open internal fun onPageFinishedActions(url: String) {
injectAndFinish()
}
internal fun injectAndFinish() {
L.d("Page finished reveal")
webCore.jsInject(CssHider.HEADER,
Prefs.themeInjector,
callback = {
refreshObservable.onNext(false)
webCore.jsInject(
JsActions.LOGIN_CHECK,
JsAssets.CLICK_A.maybe(webCore.baseEnum != null && Prefs.overlayEnabled),
JsAssets.CONTEXT_A,
JsAssets.HEADER_BADGES.maybe(webCore.baseEnum != null)
)
})
}
open fun handleHtml(html: String) {
L.d("Handle Html")
}
open fun emit(flag: Int) {
L.d("Emit $flag")
}
/**
* Helper to format the request and launch it
* returns true to override the url
*/
private fun launchRequest(request: WebResourceRequest): Boolean {
L.d("Launching ${request.url}")
webCore.context.launchWebOverlay(request.url.toString())
return true
}
override fun shouldOverrideUrlLoading(view: WebView, request: WebResourceRequest): Boolean {
L.i("Url Loading ${request.url}")
val path = request.url.path ?: return super.shouldOverrideUrlLoading(view, request)
if (path.startsWith("/composer/")) return launchRequest(request)
return super.shouldOverrideUrlLoading(view, request)
}
}
/**
* Client variant for the menu view
*/
class FrostWebViewClientMenu(webCore: FrostWebViewCore) : FrostWebViewClient(webCore) {
private val String.shouldInjectMenu
get() = when (removePrefix(FB_URL_BASE)) {
"settings",
"settings#",
"settings#!/settings?soft=bookmarks" -> true
else -> false
}
override fun onPageFinished(view: WebView, url: String) {
super.onPageFinished(view, url)
if (url.shouldInjectMenu) jsInject(JsAssets.MENU)
}
override fun emit(flag: Int) {
super.emit(flag)
super.injectAndFinish()
}
override fun onPageFinishedActions(url: String) {
if (!url.shouldInjectMenu) injectAndFinish()
}
}
/**
* Headless client that injects content after a page load
* The JSI is meant to handle everything else
*/
class HeadlessWebViewClient(val tag: String, val postInjection: InjectorContract) : BaseWebViewClient() {
override fun onPageStarted(view: WebView, url: String, favicon: Bitmap?) {
super.onPageStarted(view, url, favicon)
L.d("Headless Page $tag Started", url)
}
override fun onPageFinished(view: WebView, url: String) {
super.onPageFinished(view, url)
L.d("Headless Page $tag Finished", url)
postInjection.inject(view)
}
/**
* In addition to general filtration, we will also strip away css and images
*/
override fun shouldInterceptRequest(view: WebView, request: WebResourceRequest): WebResourceResponse?
= super.shouldInterceptRequest(view, request).filterCss(request).filterImage(request)
}
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