From c129a7595e4a05f87befa8a9e3cef316bb614f47 Mon Sep 17 00:00:00 2001 From: Allan Wang Date: Mon, 14 Oct 2019 23:37:15 -0700 Subject: Fix backstack by removing home page additions --- .../kotlin/com/pitchedapps/frost/views/FrostWebView.kt | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/app/src/main/kotlin/com/pitchedapps/frost/views/FrostWebView.kt b/app/src/main/kotlin/com/pitchedapps/frost/views/FrostWebView.kt index 5b564102..de4e414b 100644 --- a/app/src/main/kotlin/com/pitchedapps/frost/views/FrostWebView.kt +++ b/app/src/main/kotlin/com/pitchedapps/frost/views/FrostWebView.kt @@ -33,6 +33,7 @@ import com.pitchedapps.frost.db.currentCookie import com.pitchedapps.frost.facebook.FB_HOME_URL import com.pitchedapps.frost.facebook.USER_AGENT import com.pitchedapps.frost.fragments.WebFragment +import com.pitchedapps.frost.utils.L import com.pitchedapps.frost.utils.Prefs import com.pitchedapps.frost.utils.ctxCoroutine import com.pitchedapps.frost.utils.frostDownload @@ -130,15 +131,23 @@ class FrostWebView @JvmOverloads constructor( } /** - * By 2018-10-17, facebook automatically adds their home page to the back stack, + * 2018-10-17. facebook automatically adds their home page to the back stack, * regardless of the loaded url. We will make sure we skip it when going back. + * + * 2019-10-14. Looks like facebook now randomly populates some links with the home page, + * especially those that are launched with a blank target... + * In some cases, there can be more than one home target in a row. */ override fun onBackPressed(): Boolean { - if (canGoBackOrForward(-2)) { - goBack() + val list = copyBackForwardList() + if (list.currentIndex >= 2) { + val skipCount = (1..list.currentIndex).firstOrNull { + list.getItemAtIndex(list.currentIndex - it).url != FB_HOME_URL + } ?: return false // If no non home url is found, we will treat the stack as empty + L.v { "onBackPress: going back ${if (skipCount == 1) "one page" else "$skipCount pages"}" } + goBackOrForward(-skipCount) return true } - val list = copyBackForwardList() if (list.currentIndex == 1 && list.getItemAtIndex(0).url == FB_HOME_URL) { return false } -- cgit v1.2.3