Move default implementations into Device.

The current abstract class was a nice idea but has led to a lot of
copy & paste in practice. Right now, no one we know of has any extra
menu items, so let's make the default menu available to everyone.

(If we assume that someone somewhere really does need custom
device-specific menu options, a better API would let them add to
our menu rather than replacing it.)

Change-Id: I59f6a92f3ecd830c2ce78ce9da19eaaf472c5dfa

1 files changed, 16 insertions, 12 deletions

diff --git a/device.h b/device.h
index 8ff4ec0..a245400 100644
--- a/device.h
+++ b/device.h
@@ -21,13 +21,14 @@
 
 class Device {
   public:
+    Device(RecoveryUI* ui) : ui_(ui) { }
     virtual ~Device() { }
 
     // Called to obtain the UI object that should be used to display
     // the recovery user interface for this device.  You should not
     // have called Init() on the UI object already, the caller will do
     // that after this method returns.
-    virtual RecoveryUI* GetUI() = 0;
+    virtual RecoveryUI* GetUI() { return ui_; }
 
     // Called when recovery starts up (after the UI has been obtained
     // and initialized and after the arguments have been parsed, but
@@ -70,6 +71,17 @@ class Device {
                          APPLY_ADB_SIDELOAD, WIPE_DATA, WIPE_CACHE,
                          REBOOT_BOOTLOADER, SHUTDOWN, READ_RECOVERY_LASTLOG };
 
+    // Return the headers (an array of strings, one per line,
+    // NULL-terminated) for the main menu.  Typically these tell users
+    // what to push to move the selection and invoke the selected
+    // item.
+    virtual const char* const* GetMenuHeaders();
+
+    // Return the list of menu items (an array of strings,
+    // NULL-terminated).  The menu_position passed to InvokeMenuItem
+    // will correspond to the indexes into this array.
+    virtual const char* const* GetMenuItems();
+
     // Perform a recovery action selected from the menu.
     // 'menu_position' will be the item number of the selected menu
     // item, or a non-negative number returned from
@@ -79,7 +91,7 @@ class Device {
     // builtin actions, you can just return the corresponding enum
     // value.  If it is an action specific to your device, you
     // actually perform it here and return NO_ACTION.
-    virtual BuiltinAction InvokeMenuItem(int menu_position) = 0;
+    virtual BuiltinAction InvokeMenuItem(int menu_position);
 
     static const int kNoAction = -1;
     static const int kHighlightUp = -2;
@@ -94,16 +106,8 @@ class Device {
     // are erased AFTER this returns (whether it returns success or not).
     virtual int WipeData() { return 0; }
 
-    // Return the headers (an array of strings, one per line,
-    // NULL-terminated) for the main menu.  Typically these tell users
-    // what to push to move the selection and invoke the selected
-    // item.
-    virtual const char* const* GetMenuHeaders() = 0;
-
-    // Return the list of menu items (an array of strings,
-    // NULL-terminated).  The menu_position passed to InvokeMenuItem
-    // will correspond to the indexes into this array.
-    virtual const char* const* GetMenuItems() = 0;
+  private:
+    RecoveryUI* ui_;
 };
 
 // The device-specific library must define this function (or the