Add preview of encryption channel in compose text hint.

res/layout/conversation_activity.xml

@@ -88,7 +88,6 @@
                         android:background="#00ffffff"
                         android:padding="12dp"
                         android:paddingRight="0dp"
-                        android:hint="@string/conversation_activity__type_message"
                         android:imeOptions="actionSend|flagNoEnterAction"
                         android:inputType="textShortMessage|textAutoCorrect|textCapSentences|textMultiLine"
                         android:maxLength="1000"

res/values/strings.xml

@@ -441,7 +441,11 @@
     <string name="contact_selection_recent_activity__no_recent_calls">No recent calls.</string>
 
     <!-- conversation_activity -->
-    <string name="conversation_activity__type_message"><small>Send a message</small></string>
+    <string name="conversation_activity__type_message_push">Send TextSecure message</string>
+    <string name="conversation_activity__type_message_sms_secure">Send secure SMS</string>
+    <string name="conversation_activity__type_message_sms_insecure">Send insecure SMS</string>
+    <string name="conversation_activity__type_message_mms_secure">Send secure MMS</string>
+    <string name="conversation_activity__type_message_mms_insecure">Send insecure MMS</string>
     <string name="conversation_activity__send">Send</string>
     <string name="conversation_activity__remove">Remove</string>
 

src/org/thoughtcrime/securesms/ConversationActivity.java

@@ -34,8 +34,11 @@ import android.provider.ContactsContract;
 import android.telephony.PhoneNumberUtils;
 import android.text.Editable;
 import android.text.InputType;
+import android.text.Spannable;
+import android.text.SpannableString;
 import android.text.TextUtils;
 import android.text.TextWatcher;
+import android.text.style.RelativeSizeSpan;
 import android.util.Log;
 import android.view.ContextMenu;
 import android.view.ContextThemeWrapper;
@@ -125,7 +128,8 @@ import static org.whispersystems.textsecure.push.PushMessageProtos.PushMessageCo
  *
  */
 public class ConversationActivity extends PassphraseRequiredSherlockFragmentActivity
-    implements ConversationFragment.ConversationFragmentListener
+    implements ConversationFragment.ConversationFragmentListener,
+               AttachmentManager.AttachmentListener
 {
   private static final String TAG = ConversationActivity.class.getSimpleName();
 
@@ -199,6 +203,7 @@ public class ConversationActivity extends PassphraseRequiredSherlockFragmentActi
     dynamicLanguage.onResume(this);
 
     initializeSecurity();
+    initializeScreenshotSecurity();
     initializeTitleBar();
     initializeEnabledCheck();
     initializeMmsEnabledCheck();
@@ -681,28 +686,40 @@ public class ConversationActivity extends PassphraseRequiredSherlockFragmentActi
   }
 
   private void initializeSecurity() {
-    TypedArray drawables         = obtainStyledAttributes(SEND_ATTRIBUTES);
+    TypedArray drawables           = obtainStyledAttributes(SEND_ATTRIBUTES);
-    boolean    isPushDestination = DirectoryHelper.isPushDestination(this, getRecipients());
+    Recipient  primaryRecipient    = getRecipients() == null ? null : getRecipients().getPrimaryRecipient();
-    Recipient  primaryRecipient  = getRecipients() == null ? null : getRecipients().getPrimaryRecipient();
+    boolean    isPushDestination   = DirectoryHelper.isPushDestination(this, getRecipients());
+    boolean    isSecureDestination = isSingleConversation() && Session.hasSession(this, masterSecret, primaryRecipient);
 
-    if (isPushDestination ||
+    if (isPushDestination || isSecureDestination) {
-        (isSingleConversation() && Session.hasSession(this, masterSecret, primaryRecipient)))
-    {
       this.isEncryptedConversation = true;
       this.characterCalculator     = new EncryptedCharacterCalculator();
-
-      if (isPushDestination) sendButton.setImageDrawable(drawables.getDrawable(0));
-      else                   sendButton.setImageDrawable(drawables.getDrawable(1));
     } else {
       this.isEncryptedConversation = false;
       this.characterCalculator     = new CharacterCalculator();
+    }
+
+    if (isPushDestination) {
+      sendButton.setImageDrawable(drawables.getDrawable(0));
+      setComposeTextHint(getString(R.string.conversation_activity__type_message_push));
+    } else if (isSecureDestination) {
+      sendButton.setImageDrawable(drawables.getDrawable(1));
+      setComposeTextHint(attachmentManager.isAttachmentPresent() ?
+                             getString(R.string.conversation_activity__type_message_mms_secure) :
+                             getString(R.string.conversation_activity__type_message_sms_secure));
+    } else {
       sendButton.setImageDrawable(drawables.getDrawable(2));
+      setComposeTextHint((attachmentManager.isAttachmentPresent() || !recipients.isSingleRecipient()) ?
+                             getString(R.string.conversation_activity__type_message_mms_insecure) :
+                             getString(R.string.conversation_activity__type_message_sms_insecure));
     }
 
     drawables.recycle();
 
     calculateCharactersRemaining();
+  }
 
+  private void initializeScreenshotSecurity() {
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
       if (TextSecurePreferences.isScreenSecurityEnabled(this)) {
         getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
@@ -751,7 +768,7 @@ public class ConversationActivity extends PassphraseRequiredSherlockFragmentActi
     }
 
     attachmentAdapter   = new AttachmentTypeSelectorAdapter(this);
-    attachmentManager   = new AttachmentManager(this);
+    attachmentManager   = new AttachmentManager(this, this);
 
     SendButtonListener        sendButtonListener        = new SendButtonListener();
     ComposeKeyPressedListener composeKeyPressedListener = new ComposeKeyPressedListener();
@@ -1182,4 +1199,18 @@ public class ConversationActivity extends PassphraseRequiredSherlockFragmentActi
     this.composeText.setText(text);
   }
 
+  private void setComposeTextHint(String hint){
+    if (hint == null) {
+      this.composeText.setHint(null);
+    } else {
+      SpannableString span = new SpannableString(hint);
+      span.setSpan(new RelativeSizeSpan(0.8f), 0, hint.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);
+      this.composeText.setHint(span);
+    }
+  }
+
+  @Override
+  public void onAttachmentChanged() {
+    initializeSecurity();
+  }
 }

src/org/thoughtcrime/securesms/mms/AttachmentManager.java

@@ -37,13 +37,15 @@ public class AttachmentManager {
   private final ImageView thumbnail;
   private final Button removeButton;
   private final SlideDeck slideDeck;
+  private final AttachmentListener attachmentListener;
 
-  public AttachmentManager(Activity view) {
+  public AttachmentManager(Activity view, AttachmentListener listener) {
-    this.attachmentView = (View)view.findViewById(R.id.attachment_editor);
+    this.attachmentView     = (View)view.findViewById(R.id.attachment_editor);
-    this.thumbnail      = (ImageView)view.findViewById(R.id.attachment_thumbnail);
+    this.thumbnail          = (ImageView)view.findViewById(R.id.attachment_thumbnail);
-    this.removeButton   = (Button)view.findViewById(R.id.remove_image_button);
+    this.removeButton       = (Button)view.findViewById(R.id.remove_image_button);
-    this.slideDeck      = new SlideDeck();
+    this.slideDeck          = new SlideDeck();
-    this.context        = view;
+    this.context            = view;
+    this.attachmentListener = listener;
 
     this.removeButton.setOnClickListener(new RemoveButtonListener());
   }
@@ -51,6 +53,7 @@ public class AttachmentManager {
   public void clear() {
     slideDeck.clear();
     attachmentView.setVisibility(View.GONE);
+    attachmentListener.onAttachmentChanged();
   }
 
   public void setImage(Uri image) throws IOException, BitmapDecodingException {
@@ -58,6 +61,7 @@ public class AttachmentManager {
     slideDeck.addSlide(slide);
     thumbnail.setImageDrawable(slide.getThumbnail(345, 261));
     attachmentView.setVisibility(View.VISIBLE);
+    attachmentListener.onAttachmentChanged();
   }
 
   public void setVideo(Uri video) throws IOException, MediaTooLargeException {
@@ -65,6 +69,7 @@ public class AttachmentManager {
     slideDeck.addSlide(slide);
     thumbnail.setImageDrawable(slide.getThumbnail(thumbnail.getWidth(), thumbnail.getHeight()));
     attachmentView.setVisibility(View.VISIBLE);
+    attachmentListener.onAttachmentChanged();
   }
 
   public void setAudio(Uri audio)throws IOException, MediaTooLargeException {
@@ -72,6 +77,7 @@ public class AttachmentManager {
     slideDeck.addSlide(slide);
     thumbnail.setImageDrawable(slide.getThumbnail(thumbnail.getWidth(), thumbnail.getHeight()));
     attachmentView.setVisibility(View.VISIBLE);
+    attachmentListener.onAttachmentChanged();
   }
 
   public boolean isAttachmentPresent() {
@@ -114,4 +120,7 @@ public class AttachmentManager {
     }
   }
 
+  public interface AttachmentListener {
+    public void onAttachmentChanged();
+  }
 }