commit 4a3862f6b0a8971b6ab5b1c46735b28e7604d0db
author Jeff Brown <jeffbrown@google.com> Tue Apr 17 18:50:05 2012 -0700
committer Jeff Brown <jeffbrown@google.com> Tue Apr 17 18:50:05 2012 -0700
tree 4091176054868659d2fa6bec36540f56c08bd116
parent 6ec6f79e1ac1714e3b837796e99f07ff88f66601

Add Dvorak keyboard layout.

Added support for mapping both scan codes and HID usages to
KeyLayoutMap and KeyCharacterMap.  Keyboard overlays can
now influence how key events are mapped to key codes.

Bug: 6110399
Change-Id: I6619fd2d3e1337c55928f89869dbc45b535c7ccf

libs/androidfw/KeyLayoutMap.cpp

diff --git a/libs/androidfw/KeyLayoutMap.cpp b/libs/androidfw/KeyLayoutMap.cpp
index a7c2199..2db19c5 100644
--- a/libs/androidfw/KeyLayoutMap.cpp
+++ b/libs/androidfw/KeyLayoutMap.cpp
@@ -199,17 +199,26 @@
 }
 
 status_t KeyLayoutMap::Parser::parseKey() {
-    String8 scanCodeToken = mTokenizer->nextToken(WHITESPACE);
+    String8 codeToken = mTokenizer->nextToken(WHITESPACE);
+    bool mapUsage = false;
+    if (codeToken == "usage") {
+        mapUsage = true;
+        mTokenizer->skipDelimiters(WHITESPACE);
+        codeToken = mTokenizer->nextToken(WHITESPACE);
+    }
+
     char* end;
-    int32_t scanCode = int32_t(strtol(scanCodeToken.string(), &end, 0));
+    int32_t code = int32_t(strtol(codeToken.string(), &end, 0));
     if (*end) {
-        ALOGE("%s: Expected key scan code number, got '%s'.", mTokenizer->getLocation().string(),
-                scanCodeToken.string());
+        ALOGE("%s: Expected key %s number, got '%s'.", mTokenizer->getLocation().string(),
+                mapUsage ? "usage" : "scan code", codeToken.string());
         return BAD_VALUE;
     }
-    if (mMap->mKeysByScanCode.indexOfKey(scanCode) >= 0) {
-        ALOGE("%s: Duplicate entry for key scan code '%s'.", mTokenizer->getLocation().string(),
-                scanCodeToken.string());
+    KeyedVector<int32_t, Key>& map =
+            mapUsage ? mMap->mKeysByUsageCode : mMap->mKeysByScanCode;
+    if (map.indexOfKey(code) >= 0) {
+        ALOGE("%s: Duplicate entry for key %s '%s'.", mTokenizer->getLocation().string(),
+                mapUsage ? "usage" : "scan code", codeToken.string());
         return BAD_VALUE;
     }
 
@@ -243,12 +252,13 @@
     }
 
 #if DEBUG_PARSER
-    ALOGD("Parsed key: scanCode=%d, keyCode=%d, flags=0x%08x.", scanCode, keyCode, flags);
+    ALOGD("Parsed key %s: code=%d, keyCode=%d, flags=0x%08x.",
+            mapUsage ? "usage" : "scan code", code, keyCode, flags);
 #endif
     Key key;
     key.keyCode = keyCode;
     key.flags = flags;
-    mMap->mKeysByScanCode.add(scanCode, key);
+    map.add(code, key);
     return NO_ERROR;
 }