commit e0d69089bcdc63c23b277610b3a3901b15533f78
author Mindy Pereira <mindyp@google.com> Thu Jun 02 10:20:09 2011 -0700
committer Mindy Pereira <mindyp@google.com> Thu Jun 02 10:25:54 2011 -0700
tree 02c6355cce6ea837ac9666da0933e90abcf321d9
parent cd61195b9be5614aefc4cda76c1732cc4840b18e

Don't allow the user to drag the cursor between chips.

This prevents the user from dragging the cursor between chips.
Whenever the cursor is active, if the user tries to drag it over
chips, it will be replaced at the end of the chips. This does not
prevent the user from moving within text they are editing.

Change-Id: I89500b64f1332751a295dd46b103540621435376

src/com/android/ex/chips/RecipientEditTextView.java

diff --git a/src/com/android/ex/chips/RecipientEditTextView.java b/src/com/android/ex/chips/RecipientEditTextView.java
index 2e60760..4228c84 100644
--- a/src/com/android/ex/chips/RecipientEditTextView.java
+++ b/src/com/android/ex/chips/RecipientEditTextView.java
@@ -35,9 +35,13 @@
 import android.text.style.ImageSpan;
 import android.util.AttributeSet;
 import android.util.Log;
+import android.view.ActionMode;
 import android.view.KeyEvent;
+import android.view.Menu;
+import android.view.MenuItem;
 import android.view.MotionEvent;
 import android.view.View;
+import android.view.ActionMode.Callback;
 import android.widget.AdapterView;
 import android.widget.AdapterView.OnItemClickListener;
 import android.widget.ListPopupWindow;
@@ -55,7 +59,7 @@
  * that use the new Chips UI for addressing a message to recipients.
  */
 public class RecipientEditTextView extends MultiAutoCompleteTextView
-    implements OnItemClickListener {
+    implements OnItemClickListener, Callback {
 
     private static final String TAG = "RecipientEditTextView";
 
@@ -93,6 +97,23 @@
         mHandler = new Handler();
         setOnItemClickListener(this);
         mRecipients = new ArrayList<RecipientChip>();
+        setCustomSelectionActionModeCallback(this);
+    }
+
+    @Override
+    public void onSelectionChanged(int start, int end) {
+        // When selection changes, see if it is inside the chips area.
+        // If so, move the cursor back after the chips again.
+        if (mRecipients != null && mRecipients.size() > 0) {
+            Spannable span = getSpannable();
+            RecipientChip[] chips = span.getSpans(start, getText().length(), RecipientChip.class);
+            if (chips != null && chips.length > 0) {
+                // Grab the last chip and set the cursor to after it.
+                setSelection(chips[chips.length - 1].getChipEnd() + 1);
+            }
+        } else {
+            super.onSelectionChanged(start, end);
+        }
     }
 
     public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed)
@@ -694,5 +715,25 @@
             return mDataId;
         }
     }
+
+    @Override
+    public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
+        return false;
+    }
+
+    @Override
+    public void onDestroyActionMode(ActionMode mode) {
+    }
+
+    @Override
+    public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
+        return false;
+    }
+
+    // Prevent selection of chips.
+    @Override
+    public boolean onCreateActionMode(ActionMode mode, Menu menu) {
+        return false;
+    }
 }