From a730e675144755b0efaea4fdd8a4b2c3b63c6cb4 Mon Sep 17 00:00:00 2001
From: Sander Bogaert <Sander.Bogaert@tworoadssoftware.com>
Date: Fri, 20 Jul 2012 13:30:23 -0400
Subject: [PATCH] Have a dynamic context actionbar filled with options that are
 supported by the current selection of mails. Also works for unified inbox.

---
 src/com/fsck/k9/activity/MessageList.java | 56 ++++++++++++++++++++++-
 1 file changed, 54 insertions(+), 2 deletions(-)

diff --git a/src/com/fsck/k9/activity/MessageList.java b/src/com/fsck/k9/activity/MessageList.java
index da75e5b11..62907dbf0 100644
--- a/src/com/fsck/k9/activity/MessageList.java
+++ b/src/com/fsck/k9/activity/MessageList.java
@@ -2336,6 +2336,11 @@ public class MessageList extends K9ListActivity implements
 	}
         mAdapter.notifyDataSetChanged();
 		mActionMode.setTitle(mSelectedCount+" "+getString(R.string.actionbar_selected));
+
+		if (mQueryString != null) {
+			// we might have to disable some options
+			mActionMode.invalidate();
+		}
     }
 
     /**
@@ -2678,8 +2683,28 @@ public class MessageList extends K9ListActivity implements
 
 		@Override
 		public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
-			// TODO Auto-generated method stub
-			return false;
+			if (mQueryString != null) {
+				// show all
+	            menu.findItem(R.id.move).setVisible(true);
+	            menu.findItem(R.id.archive).setVisible(true);
+	            menu.findItem(R.id.spam).setVisible(true);
+	            menu.findItem(R.id.copy).setVisible(true);
+
+	            // hide uncapable
+				/*
+				 *  TODO think of a better way then looping over all
+				 *  messages.
+				 */
+				final List<MessageInfoHolder> selection = getSelectionFromCheckboxes();
+				Account account;
+
+				for (MessageInfoHolder holder : selection) {
+					account = holder.message.getFolder().getAccount();
+					setContextCapabilities(account, menu);
+				}
+
+			}
+			return true;
 		}
 
 		@Override
@@ -2692,9 +2717,36 @@ public class MessageList extends K9ListActivity implements
 		public boolean onCreateActionMode(ActionMode mode, Menu menu) {
 			MenuInflater inflater = mode.getMenuInflater();
 			inflater.inflate(R.menu.message_list_context, menu);
+
+			// check capabilities
+			if (mQueryString == null) {
+				setContextCapabilities(mAccount, menu);
+			}
+
 			return true;
 		}
 
+		private void setContextCapabilities(Account mAccount, Menu menu) {
+			// hide unsupported
+	        if (!mController.isCopyCapable(mAccount)) {
+	            menu.findItem(R.id.copy).setVisible(false);
+	        }
+
+	        if (!mController.isMoveCapable(mAccount)) {
+	            menu.findItem(R.id.move).setVisible(false);
+	            menu.findItem(R.id.archive).setVisible(false);
+	            menu.findItem(R.id.spam).setVisible(false);
+	        }
+
+	        if (!mAccount.hasArchiveFolder()) {
+	            menu.findItem(R.id.archive).setVisible(false);
+	        }
+
+	        if (!mAccount.hasSpamFolder()) {
+	            menu.findItem(R.id.spam).setVisible(false);
+	        }
+		}
+
 		@Override
 		public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
 			final List<MessageInfoHolder> selection = getSelectionFromCheckboxes();