GeckoView shim

3 files changed, 115 insertions, 52 deletions

diff --git a/full-description.md b/full-description.md
index 76ce747..ac1730f 100644
--- a/full-description.md
+++ b/full-description.md
@@ -33,7 +33,7 @@ replacing WebView by a shim built around GeckoView[12].
 At first, we reviewed the several ongoing projects that strive to clean the
 Chromium mess:
 
-- ungoogle-chromium seemed to be aligned with both privacy and software
+- ungoogled-chromium seemed to be aligned with both privacy and software
   freedom[4].
 - Bromite is quite interesting for the fact that the codebase is used to build
   WebView[13]. However it is only focused on privacy and ad blocking, not on
diff --git a/img/geckoview.png b/img/geckoview.png
new file mode 100644
index 0000000..ec9ae47
--- /dev/null
+++ b/img/geckoview.png
diff --git a/slides.tex b/slides.tex
index bf80af1..bb6237f 100644
--- a/slides.tex
+++ b/slides.tex
@@ -12,7 +12,6 @@
 \usepackage{listings}
 \usepackage{graphicx}
 \usepackage[font=tiny,skip=0pt]{caption}
-\usepackage{array}
 \usepackage{verbatim}
 
 \graphicspath{{img/}}
@@ -265,6 +264,63 @@ public class MainActivity extends Activity {
 \end{frame}
 
 \section{GeckoView shim}
+\begin{frame}
+  \frametitle{WebView API compatibility shim for GeckoView}
+  Chromium fork requires constant maintenance burden.\\\smallskip
+  Google's interests do not align with ours. Check Mozilla.\\
+  \vspace{2\baselineskip}
+  \begin{columns}
+    \begin{column}{0.1\textwidth}
+      \includegraphics[width=\textwidth]{geckoview}
+    \end{column}
+    \begin{column}{0.9\textwidth}
+      GeckoView:
+      \begin{itemize}
+        \item Java wrapper for Gecko browser engine.
+        \item Used in Android apps as replacement for WebView.
+        \item API is incompatible with WebView: not meant to be a drop-in.
+      \end{itemize}
+    \end{column}
+  \end{columns}
+\end{frame}
+
+\subsection{Mapping WebView to GeckoView}
+\begin{frame}[fragile]
+  \frametitle{Mapping WebView to GeckoView}
+  \begin{itemize}
+    \setlength\itemsep{1em}
+    \item<1-> Some functions have a 1:1 mapping.\\\smallskip
+      {\small
+        \begin{tabular}{l | l}
+          WebView & GeckoView \\
+          \hline
+          \verb|goBack()|, \verb|goForward()| & \verb|GeckoSession.NavigationDelegate|\\
+          \verb|loadUrl()| &  \verb|GeckoSession.loadUri()|\\
+          \verb|stopLoading()| & \verb|GeckoSession.stop()|
+        \end{tabular}
+      }
+    \item<2->  Others require emulation.\\\smallskip
+      {\small
+        \begin{tabular}{l | l}
+          WebView & GeckoView \\
+          \hline
+          \verb|getTitle()| & \verb|GeckoSession.HistoryDelegate.HistoryItem.getTitle()|\\
+          \verb|pageDown()| & \verb|PanZoomController.scrollBy(width,height)|
+        \end{tabular}
+      }
+    \item<3->  Others require more features from Gecko to be exposed via GeckoView,
+      e.g. \verb|zoomIn()|.
+    \item<4->  Others still, added on latest Android APIs (26-29), seem too tied to Chromium,
+      e.g. \verb|getWebViewLooper()|, \verb|getWebChromeClient()|, \verb|getWebViewClient()|.
+  \end{itemize}
+\end{frame}
+
+\begin{frame}
+  \frametitle{Mapping WebView to GeckoView}
+  Requires a considerable effort.\\\bigskip
+  Can pay off in the long-term: no need to constantly scout for proprietary dependencies and privacy issues.\\\bigskip
+  Burden may be lessened by collaborations, e.g., qt5-webengine replacement with Gecko underneath.
+\end{frame}
 
 \section{GeckoView on apps}
 
@@ -282,64 +338,71 @@ public class MainActivity extends Activity {
 
 \begin{frame}
   \frametitle{Licenses (I)}
-  \begin{tabular}{>{\scriptsize}l | >{\scriptsize}l | >{\scriptsize}l}
-    item & source & license \\
-    \hline
-    K-9 Mail logo & \url{https://github.com/k9mail/k-9} & Apache-2.0 \\
-    OsmAnd logo & \url{https://github.com/osmandapp/Osmand} & CC-BY-NC-ND 4.0 \\
-    Nextcloud logo & \url{https://github.com/nextcloud/android} & AGPLv3 \\
-    Tiny Tiny RSS logo & \url{https://gitlab.com/derSchabi/tttrsss} & GPLv3 \\
-    I2P logo & \url{https://github.com/i2p/i2p.android.base} & Apache-2.0 \\
-    Orbot logo & \url{https://gitweb.torproject.org/orbot.git} & BSD \\
-    F-Droid logo & \url{https://gitlab.com/fdroid/fdroidclient} & GPLv3 \\
-    andOTP logo & \url{https://github.com/andOTP/andOTP} & MIT \\
-    Shaarlier logo & \url{https://github.com/dimtion/Shaarlier} & GPLv3 \\
-    wallabag logo & \url{https://github.com/wallabag/android-app} & GPLv3 \\
-    OpenKeychain logo & \url{https://github.com/open-keychain/open-keychain} & GPLv3 \\
-    EteSync logo & \url{https://github.com/etesync/android} & GPLv3 \\
-    Syncthing logo & \url{https://github.com/syncthing/syncthing-android} & MPLv2 \\
-    Briar logo & \url{https://code.briarproject.org/briar/briar} & GPLv3 \\
-  \end{tabular}
+  {\scriptsize
+    \begin{tabular}{l | l | l}
+      item & source & license \\
+      \hline
+      K-9 Mail logo & \url{https://github.com/k9mail/k-9} & Apache-2.0 \\
+      OsmAnd logo & \url{https://github.com/osmandapp/Osmand} & CC-BY-NC-ND 4.0 \\
+      Nextcloud logo & \url{https://github.com/nextcloud/android} & AGPLv3 \\
+      Tiny Tiny RSS logo & \url{https://gitlab.com/derSchabi/tttrsss} & GPLv3 \\
+      I2P logo & \url{https://github.com/i2p/i2p.android.base} & Apache-2.0 \\
+      Orbot logo & \url{https://gitweb.torproject.org/orbot.git} & BSD \\
+      F-Droid logo & \url{https://gitlab.com/fdroid/fdroidclient} & GPLv3 \\
+      andOTP logo & \url{https://github.com/andOTP/andOTP} & MIT \\
+      Shaarlier logo & \url{https://github.com/dimtion/Shaarlier} & GPLv3 \\
+      wallabag logo & \url{https://github.com/wallabag/android-app} & GPLv3 \\
+      OpenKeychain logo & \url{https://github.com/open-keychain/open-keychain} & GPLv3 \\
+      EteSync logo & \url{https://github.com/etesync/android} & GPLv3 \\
+      Syncthing logo & \url{https://github.com/syncthing/syncthing-android} & MPLv2 \\
+      Briar logo & \url{https://code.briarproject.org/briar/briar} & GPLv3 \\
+    \end{tabular}
+  }
 \end{frame}
 
 \begin{frame}
   \frametitle{Licenses (II)}
-  \begin{tabular}{>{\scriptsize}l | >{\scriptsize}l | >{\scriptsize}l}
-    item & source & license \\
-    \hline
-    Conversations logo & \url{https://github.com/siacs/Conversations} & GPLv3 \\
-    Signal logo & \url{https://github.com/signalapp/Signal-Android} & GPLv3 \\
-    Silence logo & \url{https://git.silence.dev/Silence/Silence-Android} & GPLv3 \\
-    Tinc App logo & \url{https://github.com/pacien/tincapp} & GPLv3 \\
-    KeePass DX logo & \url{https://github.com/Kunzisoft/KeePassDX} & GPLv3 \\
-    dandelion* logo & \url{https://github.com/gsantner/dandelion} & GPLv3 \\
-    Nomad logo & \url{https://framagit.org/disroot/AndHub} & GPLv3 \\
-    Tusky logo & \url{https://github.com/tuskyapp/Tusky} & GPLv3 \\
-    Movim logo & \url{https://github.com/movim/movim_android} & AGPLv3 \\
-    Jami logo & \url{https://git.jami.net/savoirfairelinux/ring-client-android} & GPLv3 \\
-    Bitmask logo & \url{https://0xacab.org/leap/bitmask_android} & GPLv3 \\
-    WireGuard logo & \url{https://git.zx2c4.com/wireguard-android} & Apache-2.0 \\
-    Fennec F-Droid logo & \url{https://hg.mozilla.org/releases/mozilla-esr68} & MPL-2.0 \\
-    Tor Browser logo & \url{https://gitweb.torproject.org/tor-browser.git} & MPL-2.0 \\
-  \end{tabular}
+  {\scriptsize
+    \begin{tabular}{l | l | l}
+      item & source & license \\
+      \hline
+      Conversations logo & \url{https://github.com/siacs/Conversations} & GPLv3 \\
+      Signal logo & \url{https://github.com/signalapp/Signal-Android} & GPLv3 \\
+      Silence logo & \url{https://git.silence.dev/Silence/Silence-Android} & GPLv3 \\
+      Tinc App logo & \url{https://github.com/pacien/tincapp} & GPLv3 \\
+      KeePass DX logo & \url{https://github.com/Kunzisoft/KeePassDX} & GPLv3 \\
+      dandelion* logo & \url{https://github.com/gsantner/dandelion} & GPLv3 \\
+      Nomad logo & \url{https://framagit.org/disroot/AndHub} & GPLv3 \\
+      Tusky logo & \url{https://github.com/tuskyapp/Tusky} & GPLv3 \\
+      Movim logo & \url{https://github.com/movim/movim_android} & AGPLv3 \\
+      Jami logo & \url{https://git.jami.net/savoirfairelinux/ring-client-android} & GPLv3 \\
+      Bitmask logo & \url{https://0xacab.org/leap/bitmask_android} & GPLv3 \\
+      WireGuard logo & \url{https://git.zx2c4.com/wireguard-android} & Apache-2.0 \\
+      Fennec F-Droid logo & \url{https://hg.mozilla.org/releases/mozilla-esr68} & MPL-2.0 \\
+      Tor Browser logo & \url{https://gitweb.torproject.org/tor-browser.git} & MPL-2.0 \\
+    \end{tabular}
+  }
 \end{frame}
 
 \begin{frame}
   \frametitle{Licenses (II)}
-  \begin{tabular}{>{\scriptsize}l | >{\scriptsize}l | >{\scriptsize}l}
-    item & source & license \\
-    \hline
-    Thorium logo & \url{https://github.com/sschueller/peertube-android} & AGPLv3 \\
-    WebKit logo & \url{https://en.wikipedia.org/wiki/File:WebKit_logo_(2015).svg} & non-free \\
-    Chromium logo & \url{https://commons.wikimedia.org/wiki/File:Chromium_11_Logo.svg} & CC-BY 2.5 \\
-    Replicant logo & \url{https://ftp.osuosl.org/pub/replicant/artwork/replicant_artwork.tar.gz} & CC-BY-SA 3.0 \\
-    Guix logo & \url{https://git.savannah.gnu.org/cgit/guix/guix-artwork.git/} & CC-BY-SA 4.0 \\
-    Bromite logo & \url{https://github.com/bromite/bromite.github.io} & GPLv3 \\
-    Iridium logo & \url{https://github.com/iridium-browser/artwork} & non-free \\
-    Debian logo & \url{https://www.debian.org/logos/} & CC-BY-SA 3.0 \\
-    Unobtainium logo & \url{https://gitlab.com/thermatk/Unobtainium} & BSD \\
-    everything else & this slideshow & CC BY-SA 4.0
-  \end{tabular}
+  {\scriptsize
+    \begin{tabular}{l | l | l}
+      item & source & license \\
+      \hline
+      Thorium logo & \url{https://github.com/sschueller/peertube-android} & AGPLv3 \\
+      WebKit logo & \url{https://en.wikipedia.org/wiki/File:WebKit_logo_(2015).svg} & non-free \\
+      Chromium logo & \url{https://commons.wikimedia.org/wiki/File:Chromium_11_Logo.svg} & CC-BY 2.5 \\
+      Replicant logo & \url{https://redmine.replicant.us/projects/replicant/wiki/Artwork} & CC-BY-SA 3.0 \\
+      Guix logo & \url{https://git.savannah.gnu.org/cgit/guix/guix-artwork.git/} & CC-BY-SA 4.0 \\
+      Bromite logo & \url{https://github.com/bromite/bromite.github.io} & GPLv3 \\
+      Iridium logo & \url{https://github.com/iridium-browser/artwork} & non-free \\
+      Debian logo & \url{https://www.debian.org/logos/} & CC-BY-SA 3.0 \\
+      Unobtainium logo & \url{https://gitlab.com/thermatk/Unobtainium} & BSD \\
+      GeckoView logo & \url{https://github.com/mozilla/geckoview} & non-free \\
+      everything else & this slideshow & CC BY-SA 4.0
+    \end{tabular}
+  }
 \end{frame}
 
 \end{document}