Use hint text to position handle / floating tool bar popups

In situations where the hint text does not match the direction of
the TextView's primary selection, when you copy text, and long press
in that EditText to paste, the cursor would use the direction of the
hint text to be placed, whereas the handle and floating tool bar
used the TextView's direction to be placed so they wouldn't match.

This CL updates the handle view and floating tool bars to use the
hint text direction when appropriate.

Bug: 21480429
Change-Id: I8090a5b2738c035522c307535ffa165ca024e811

1 files changed, 21 insertions, 19 deletions

diff --git a/core/java/android/widget/Editor.java b/core/java/android/widget/Editor.java
index 7c4ff18..96e033a 100644
--- a/core/java/android/widget/Editor.java
+++ b/core/java/android/widget/Editor.java
@@ -1683,8 +1683,7 @@ public class Editor {
             return;
         }
 
-        Layout layout = mTextView.getLayout();
-        Layout hintLayout = mTextView.getHintLayout();
+        Layout layout = getActiveLayout();
         final int offset = mTextView.getSelectionStart();
         final int line = layout.getLineForOffset(offset);
         final int top = layout.getLineTop(line);
@@ -1699,8 +1698,7 @@ public class Editor {
         }
 
         boolean clamped = layout.shouldClampCursor(line);
-        updateCursorPosition(0, top, middle,
-                getPrimaryHorizontal(layout, hintLayout, offset, clamped));
+        updateCursorPosition(0, top, middle, layout.getPrimaryHorizontal(offset, clamped));
 
         if (mCursorCount == 2) {
             updateCursorPosition(1, middle, bottom,
@@ -1708,17 +1706,6 @@ public class Editor {
         }
     }
 
-    private float getPrimaryHorizontal(Layout layout, Layout hintLayout, int offset,
-            boolean clamped) {
-        if (TextUtils.isEmpty(layout.getText()) &&
-                hintLayout != null &&
-                !TextUtils.isEmpty(hintLayout.getText())) {
-            return hintLayout.getPrimaryHorizontal(offset, clamped);
-        } else {
-            return layout.getPrimaryHorizontal(offset, clamped);
-        }
-    }
-
     /**
      * Start an Insertion action mode.
      */
@@ -3311,14 +3298,15 @@ public class Editor {
                                 + mHandleHeight);
             } else {
                 // We have a single cursor.
-                int line = mTextView.getLayout().getLineForOffset(mTextView.getSelectionStart());
+                Layout layout = getActiveLayout();
+                int line = layout.getLineForOffset(mTextView.getSelectionStart());
                 float primaryHorizontal =
-                        mTextView.getLayout().getPrimaryHorizontal(mTextView.getSelectionStart());
+                        layout.getPrimaryHorizontal(mTextView.getSelectionStart());
                 mSelectionBounds.set(
                         primaryHorizontal,
-                        mTextView.getLayout().getLineTop(line),
+                        layout.getLineTop(line),
                         primaryHorizontal + 1,
-                        mTextView.getLayout().getLineTop(line + 1) + mHandleHeight);
+                        layout.getLineTop(line + 1) + mHandleHeight);
             }
             // Take TextView's padding and scroll into account.
             int textHorizontalOffset = mTextView.viewportToContentHorizontalOffset();
@@ -3684,6 +3672,7 @@ public class Editor {
                 prepareCursorControllers();
                 return;
             }
+            layout = getActiveLayout();
 
             boolean offsetChanged = offset != mPreviousOffset;
             if (offsetChanged || parentScrolled) {
@@ -3863,6 +3852,19 @@ public class Editor {
         public void onDetached() {}
     }
 
+    /**
+     * Returns the active layout (hint or text layout). Note that the text layout can be null.
+     */
+    private Layout getActiveLayout() {
+        Layout layout = mTextView.getLayout();
+        Layout hintLayout = mTextView.getHintLayout();
+        if (TextUtils.isEmpty(layout.getText()) && hintLayout != null &&
+                !TextUtils.isEmpty(hintLayout.getText())) {
+            layout = hintLayout;
+        }
+        return layout;
+    }
+
     private class InsertionHandleView extends HandleView {
         private static final int DELAY_BEFORE_HANDLE_FADES_OUT = 4000;
         private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; // seconds