Start of UI provider

This is the start of the contract for a UI provider, and also includes a
mock content provider implementing it.

Included is a unit test that just traverses the content provider

Change-Id: I4424e140830244f02eac204d71152dfc196c9741
diff --git a/src/com/android/email/providers/UIProvider.java b/src/com/android/email/providers/UIProvider.java
index c68f9d2..40b90cd 100644
--- a/src/com/android/email/providers/UIProvider.java
+++ b/src/com/android/email/providers/UIProvider.java
@@ -19,18 +19,17 @@
 import android.net.Uri;
 import android.provider.BaseColumns;
 
+import java.lang.String;
+
 
 public class UIProvider {
-    // This authority is only needed to get to the account list
-    // NOTE: Overlay applications may want to override this authority
-    public static final String AUTHORITY = "com.android.email.providers";
-
-    static final String BASE_URI_STRING = "content://" + AUTHORITY;
+    // The actual content provider should define its own authority
+    //public static final String AUTHORITY = "com.android.email.providers";
 
     public static final String ACCOUNT_LIST_TYPE =
-            "vnd.android.cursor.dir/vnd.com.android.email.account";
+            "vnd.android.cursor.dir/vnd.com.android.mail.account";
     public static final String ACCOUNT_TYPE =
-            "vnd.android.cursor.item/vnd.com.android.email.account";
+            "vnd.android.cursor.item/vnd.com.android.mail.account";
 
     public static final String[] ACCOUNTS_PROJECTION = {
             BaseColumns._ID,
@@ -41,32 +40,79 @@
             AccountColumns.FOLDER_LIST_URI,
             AccountColumns.SEARCH_URI,
             AccountColumns.ACCOUNT_FROM_ADDRESSES_URI,
+            AccountColumns.SAVE_NEW_DRAFT_URI,
+            AccountColumns.SEND_MESSAGE_URI,
     };
 
     public static final class AccountCapabilities {
-        public static final int SUPPORTS_SYNCABLE_FOLDERS = 0x0001;
-        public static final int SUPPORTS_REPORT_SPAM = 0x0002;
-        public static final int SUPPORTS_ARCHIVE = 0x0004;
-        public static final int SUPPORTS_SERVER_SEARCH = 0x0008;
-        public static final int SUPPORTS_FOLDER_SERVER_SEARCH = 0x00018;
-        public static final int RETURNS_SANITIZED_HTML = 0x0020;
-        public static final int SUPPORTS_DRAFT_SYNCHRONIZATION = 0x0040;
-        public static final int SUPPORTS_MULTIPLE_FROM_ADDRESSES = 0x0080;
-        public static final int SUPPORTS_SMART_REPLY = 0x0100;
-        public static final int SUPPORTS_LOCAL_SEARCH = 0x0200;
-        public static final int SUPPORTS_THREADED_CONVERSATIONS = 0x0400;
+        public static final int SYNCABLE_FOLDERS = 0x0001;
+        public static final int REPORT_SPAM = 0x0002;
+        public static final int ARCHIVE = 0x0004;
+        public static final int MUTE = 0x0008;
+        public static final int SERVER_SEARCH = 0x0010;
+        public static final int FOLDER_SERVER_SEARCH = 0x0020;
+        public static final int SANITIZED_HTML = 0x0040;
+        public static final int DRAFT_SYNCHRONIZATION = 0x0080;
+        public static final int MULTIPLE_FROM_ADDRESSES = 0x0100;
+        public static final int SMART_REPLY = 0x0200;
+        public static final int LOCAL_SEARCH = 0x0400;
+        public static final int THREADED_CONVERSATIONS = 0x0800;
     }
 
     public static final class AccountColumns {
+        /**
+         * This string column contains the human visible name for the account.
+         */
         public static final String NAME = "name";
+
+        /**
+         * This integer column returns the version of the UI provider schema from which this
+         * account provider will return results.
+         */
         public static final String PROVIDER_VERSION = "providerVersion";
+
+        /**
+         * This string column contains the uri to directly access the information for this account.
+         */
         public static final String URI = "uri";
+
+        /**
+         * This integer column contains a bit field of the possible cabibilities that this account
+         * supports.
+         */
         public static final String CAPABILITIES = "capabilities";
+
+        /**
+         * This string column contains the content provider uri to return the list of folders for
+         * this account.
+         */
         public static final String FOLDER_LIST_URI = "folderListUri";
+
+        /**
+         * This string column contains the content provider uri that can be queried for search
+         * results.
+         */
         public static final String SEARCH_URI = "searchUri";
+
+        /**
+         * This string column contains the content provider uri that can be queried to access the
+         * from addresses for this account.
+         */
         public static final String ACCOUNT_FROM_ADDRESSES_URI = "accountFromAddressesUri";
+
+        /**
+         * This string column contains the content provider uri that can be used to save (insert)
+         * new draft messages for this account.
+         */
         public static final String SAVE_NEW_DRAFT_URI = "saveNewDraftUri";
 
+        /**
+         * This string column contains the content provider uri that can be used to send
+         * a message for this account.
+         * NOTE: This might be better to be an update operation on the messageUri.
+         */
+        public static final String SEND_MESSAGE_URI = "sendMessageUri";
+
         private AccountColumns() {};
     }
 
@@ -75,8 +121,18 @@
      * list of configured accounts.
      * @return
      */
-    public static Uri getAccountsUri() {
-        return Uri.parse(BASE_URI_STRING + "/");
+    // TODO: create a static registry for the starting point for the UI provider.
+//    public static Uri getAccountsUri() {
+//        return Uri.parse(BASE_URI_STRING + "/");
+//    }
+
+    public static final class DraftType {
+        public static final String COMPOSE = "compose";
+        public static final String REPLY = "reply";
+        public static final String REPLY_ALL = "replyAll";
+        public static final String FORWARD = "forward";
+
+        private DraftType() {}
     }
 
 
@@ -84,21 +140,20 @@
         public static final String ID = "_id";
         public static final String URI = "uri";
         public static final String MESSAGE_ID = "messageId";
-        public static final String CONVERSATION_ID = "conversation";
+        public static final String CONVERSATION_ID = "conversationId";
         public static final String SUBJECT = "subject";
         public static final String SNIPPET = "snippet";
         public static final String FROM = "fromAddress";
         public static final String TO = "toAddresses";
         public static final String CC = "ccAddresses";
         public static final String BCC = "bccAddresses";
-        public static final String REPLY_TO = "replyToAddresses";
-        public static final String DATE_SENT_MS = "dateSentMs";
+        public static final String REPLY_TO = "replyToAddress";
         public static final String DATE_RECEIVED_MS = "dateReceivedMs";
-        public static final String LIST_INFO = "listInfo";
-        public static final String BODY = "body";
+        public static final String BODY_HTML = "bodyHtml";
+        public static final String BODY_TEXT = "bodyText";
         public static final String EMBEDS_EXTERNAL_RESOURCES = "bodyEmbedsExternalResources";
         public static final String REF_MESSAGE_ID = "refMessageId";
-        public static final String FORWARD = "forward";
+        public static final String DRAFT_TYPE = "draftType";
         public static final String INCLUDE_QUOTED_TEXT = "includeQuotedText";
         public static final String QUOTE_START_POS = "quoteStartPos";
         public static final String CLIENT_CREATED = "clientCreated";
@@ -108,4 +163,4 @@
 
         private MessageColumns() {}
     }
-}
\ No newline at end of file
+}