Added option to show orginal message

Fixes #64

app/src/main/java/eu/faircode/email/FragmentMessage.java

@@ -259,7 +259,7 @@ public class FragmentMessage extends FragmentEx {
 
                     } else if (prefs.getBoolean("webview", false)) {
                         Bundle args = new Bundle();
-                        args.putString("link", url);
+                        args.putString("url", url);
 
                         FragmentWebView fragment = new FragmentWebView();
                         fragment.setArguments(args);
@@ -584,6 +584,9 @@ public class FragmentMessage extends FragmentEx {
             case R.id.menu_reply_all:
                 onMenuReplyAll();
                 return true;
+            case R.id.menu_show_html:
+                onMenuShowHtml();
+                return true;
             case R.id.menu_answer:
                 onMenuAnswer();
                 return true;
@@ -625,6 +628,29 @@ public class FragmentMessage extends FragmentEx {
                 .putExtra("reference", message.id));
     }
 
+    private void onMenuShowHtml() {
+        new SimpleTask<String>() {
+            @Override
+            protected String onLoad(Context context, Bundle args) throws Throwable {
+                return message.read(context);
+            }
+
+            @Override
+            protected void onLoaded(Bundle a, String html) {
+                Bundle args = new Bundle();
+                args.putString("html", html);
+                args.putString("from", MessageHelper.getFormattedAddresses(message.from, true));
+
+                FragmentWebView fragment = new FragmentWebView();
+                fragment.setArguments(args);
+
+                FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
+                fragmentTransaction.replace(R.id.content_frame, fragment).addToBackStack("webview");
+                fragmentTransaction.commit();
+            }
+        }.load(this, new Bundle());
+    }
+
     private void onMenuAnswer() {
         DB.getInstance(getContext()).answer().liveAnswers().observe(getViewLifecycleOwner(), new Observer<List<EntityAnswer>>() {
             @Override

app/src/main/java/eu/faircode/email/FragmentWebView.java

@@ -35,23 +35,19 @@ import androidx.annotation.Nullable;
 // https://developer.android.com/reference/android/webkit/WebView
 
 public class FragmentWebView extends FragmentEx {
-    private String url = null;
-
     @Override
     @Nullable
     public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
         View view = inflater.inflate(R.layout.fragment_webview, container, false);
 
         final ProgressBar progressBar = view.findViewById(R.id.progressbar);
-        WebView webview = view.findViewById(R.id.webview);
+        final WebView webview = view.findViewById(R.id.webview);
 
         progressBar.setProgress(0);
         progressBar.setVisibility(View.VISIBLE);
 
         WebSettings settings = webview.getSettings();
         settings.setJavaScriptEnabled(true);
-        settings.setLoadWithOverviewMode(true);
-        settings.setUseWideViewPort(true);
         settings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
 
         webview.setWebViewClient(new WebViewClient() {
@@ -71,9 +67,31 @@ public class FragmentWebView extends FragmentEx {
         });
 
         Bundle args = getArguments();
-        url = (args == null ? null : args.getString("link"));
+        if (args.containsKey("url")) {
+            String url = args.getString("url");
             webview.loadUrl(url);
             setSubtitle(url);
+        } else if (args.containsKey("html")) {
+            String html = args.getString("html");
+            String from = args.getString("from");
+            webview.loadDataWithBaseURL("email://", html, "text/html", "UTF-8", null);
+            setSubtitle(from);
+        }
+
+        ((ActivityBase) getActivity()).addBackPressedListener(new ActivityBase.IBackPressedListener() {
+            @Override
+            public boolean onBackPressed() {
+                boolean can = webview.canGoBack();
+                if (can)
+                    webview.goBack();
+
+                Bundle args = getArguments();
+                if (args.containsKey("from") && !webview.canGoBack())
+                    setSubtitle(args.getString("from"));
+
+                return can;
+            }
+        });
 
         return view;
     }

app/src/main/res/menu/menu_view.xml

@@ -26,6 +26,12 @@
         android:title="@string/title_reply_all"
         app:showAsAction="never" />
 
+    <item
+        android:id="@+id/menu_show_html"
+        android:icon="@drawable/baseline_visibility_24"
+        android:title="@string/title_show_html"
+        app:showAsAction="never" />
+
     <item
         android:id="@+id/menu_answer"
         android:icon="@drawable/baseline_reply_24"

app/src/main/res/values-af/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-ar-rBH/strings.xml

@@ -134,6 +134,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-ar-rEG/strings.xml

@@ -134,6 +134,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-ar-rSA/strings.xml

@@ -134,6 +134,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-ar-rYE/strings.xml

@@ -134,6 +134,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-ar/strings.xml

@@ -134,6 +134,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-ca/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-cs/strings.xml

@@ -126,6 +126,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-da/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Markér som ulæst</string>
   <string name="title_forward">Videresend</string>
   <string name="title_reply_all">Svar alle</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Papirkurv</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Flyt</string>

app/src/main/res/values-de/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Als ungelesen markieren</string>
   <string name="title_forward">Weiterleiten</string>
   <string name="title_reply_all">Antworten an alle</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Papierkorb</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Verschieben</string>

app/src/main/res/values-el/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-en/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-es-rES/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-fi/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-fr/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Marquer comme non lu</string>
   <string name="title_forward">Transférer</string>
   <string name="title_reply_all">Répondre à tous</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Corbeille</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Déplacer</string>

app/src/main/res/values-he/strings.xml

@@ -126,6 +126,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-hu/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-it/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Segna come non letto</string>
   <string name="title_forward">Inoltra</string>
   <string name="title_reply_all">Rispondi a tutti</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Cestino</string>
   <string name="title_spam">Posta indesiderata</string>
   <string name="title_move">Sposta</string>

app/src/main/res/values-iw/strings.xml

@@ -126,6 +126,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-ja/strings.xml

@@ -114,6 +114,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-ko/strings.xml

@@ -114,6 +114,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-nb/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-nl/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-no/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-pl/strings.xml

@@ -126,6 +126,7 @@
   <string name="title_unseen">Oznacz jako nieprzeczytane</string>
   <string name="title_forward">Prześlij dalej</string>
   <string name="title_reply_all">Odpowiedz wszystkim</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Kosz</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Przenieś</string>

app/src/main/res/values-pt-rBR/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Encaminhar</string>
   <string name="title_reply_all">Responder a todos</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Lixeira</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Mover</string>

app/src/main/res/values-pt-rPT/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-ro/strings.xml

@@ -122,6 +122,7 @@
   <string name="title_unseen">Marcare ca necitit</string>
   <string name="title_forward">Redirecționează</string>
   <string name="title_reply_all">Răspunde tuturor</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Gunoi</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Mută</string>

app/src/main/res/values-ru/strings.xml

@@ -126,6 +126,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-sr/strings.xml

@@ -122,6 +122,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-sv-rSE/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-tr/strings.xml

@@ -118,6 +118,7 @@
   <string name="title_unseen">Okunmadı olarak işaretle</string>
   <string name="title_forward">İlet</string>
   <string name="title_reply_all">Tümünü yanıtla</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Çöp Kutusu</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Taşı</string>

app/src/main/res/values-uk/strings.xml

@@ -126,6 +126,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-vi/strings.xml

@@ -114,6 +114,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values-zh-rCN/strings.xml

@@ -114,6 +114,7 @@
   <string name="title_unseen">标记为未读</string>
   <string name="title_forward">转发</string>
   <string name="title_reply_all">回复全部</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">回收站</string>
   <string name="title_spam">垃圾邮件</string>
   <string name="title_move">移动</string>

app/src/main/res/values-zh-rTW/strings.xml

@@ -114,6 +114,7 @@
   <string name="title_unseen">Mark unread</string>
   <string name="title_forward">Forward</string>
   <string name="title_reply_all">Reply to all</string>
+  <string name="title_show_html">Show original</string>
   <string name="title_trash">Trash</string>
   <string name="title_spam">Spam</string>
   <string name="title_move">Move</string>

app/src/main/res/values/strings.xml

@@ -139,6 +139,7 @@
     <string name="title_unseen">Mark unread</string>
     <string name="title_forward">Forward</string>
     <string name="title_reply_all">Reply to all</string>
+    <string name="title_show_html">Show original</string>
 
     <string name="title_trash">Trash</string>
     <string name="title_spam">Spam</string>