Prevent landscape text editing from taking over the screen.

It used to be that we let Android do the default behavior of
full-screening the EditText when in landscape, but honestly I
don't know who prefers that. So I've turned it off.

Fixes #8769

res/layout/conversation_input_panel.xml

@@ -89,6 +89,7 @@
                         android:layout_height="wrap_content"
                         android:layout_gravity="center_vertical"
                         android:layout_weight="1"
+                        android:imeOptions="flagNoExtractUi"
                         android:nextFocusForward="@+id/send_button"
                         android:nextFocusRight="@+id/send_button"
                         tools:visibility="invisible"

res/layout/mediasend_fragment.xml

@@ -42,6 +42,7 @@
                 style="@style/Signal.Text.Body"
                 android:maxLines="3"
                 android:maxLength="240"
+                android:imeOptions="flagNoExtractUi"
                 android:hint="@string/MediaSendActivity_add_a_caption"
                 android:autoText="true"
                 android:inputType="textAutoCorrect|textCapSentences|textMultiLine"
@@ -96,6 +97,7 @@
                         android:layout_height="wrap_content"
                         android:layout_gravity="center_vertical"
                         android:layout_weight="1"
+                        android:imeOptions="flagNoExtractUi"
                         android:nextFocusForward="@+id/send_button"
                         android:nextFocusRight="@+id/send_button"
                         tools:hint="Send TextSecure message" >

src/org/thoughtcrime/securesms/components/KeyboardAwareLinearLayout.java

@@ -93,11 +93,6 @@ public class KeyboardAwareLinearLayout extends LinearLayoutCompat {
   }
 
   private void updateKeyboardState() {
-    if (isLandscape()) {
-      if (keyboardOpen) onKeyboardClose();
-      return;
-    }
-
     if (viewInset == 0 && Build.VERSION.SDK_INT >= VERSION_CODES.LOLLIPOP) viewInset = getViewInset();
 
     getWindowVisibleDisplayFrame(rect);

src/org/thoughtcrime/securesms/scribbles/widget/MotionView.java

@@ -45,6 +45,7 @@ import android.view.Gravity;
 import android.view.MotionEvent;
 import android.view.ScaleGestureDetector;
 import android.view.View;
+import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.EditText;
 import android.widget.FrameLayout;
@@ -133,6 +134,7 @@ public class MotionView  extends FrameLayout implements TextWatcher {
     this.editText.setBackgroundColor(Color.TRANSPARENT);
     this.editText.setTextSize(TypedValue.COMPLEX_UNIT_SP, 1);
     this.editText.setInputType(InputType.TYPE_TEXT_FLAG_MULTI_LINE | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
+    this.editText.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI);
     this.addView(editText);
     this.editText.clearFocus();
     this.editText.addTextChangedListener(this);