Move code point constants from Keyboard to Constants class

Change-Id: Iee01d4d2b916d0b584531104ac865ae6e6370a3d

1 files changed, 70 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/latin/Constants.java b/java/src/com/android/inputmethod/latin/Constants.java
index 57e12a64f..d10ed8efb 100644
--- a/java/src/com/android/inputmethod/latin/Constants.java
+++ b/java/src/com/android/inputmethod/latin/Constants.java
@@ -16,7 +16,11 @@
 
 package com.android.inputmethod.latin;
 
+import android.util.Log;
+
 public final class Constants {
+    private static final String TAG = Constants.class.getSimpleName();
+
     public static final class Color {
         /**
          * The alpha value for fully opaque.
@@ -141,6 +145,72 @@ public final class Constants {
     public static final int SUGGESTION_STRIP_COORDINATE = -2;
     public static final int SPELL_CHECKER_COORDINATE = -3;
 
+    /**
+     * Some common keys code. Must be positive.
+     */
+    public static final int CODE_ENTER = '\n';
+    public static final int CODE_TAB = '\t';
+    public static final int CODE_SPACE = ' ';
+    public static final int CODE_PERIOD = '.';
+    public static final int CODE_DASH = '-';
+    public static final int CODE_SINGLE_QUOTE = '\'';
+    public static final int CODE_DOUBLE_QUOTE = '"';
+    public static final int CODE_QUESTION_MARK = '?';
+    public static final int CODE_EXCLAMATION_MARK = '!';
+    // TODO: Check how this should work for right-to-left languages. It seems to stand
+    // that for rtl languages, a closing parenthesis is a left parenthesis. Is this
+    // managed by the font? Or is it a different char?
+    public static final int CODE_CLOSING_PARENTHESIS = ')';
+    public static final int CODE_CLOSING_SQUARE_BRACKET = ']';
+    public static final int CODE_CLOSING_CURLY_BRACKET = '}';
+    public static final int CODE_CLOSING_ANGLE_BRACKET = '>';
+
+    /**
+     * Special keys code. Must be negative.
+     * These should be aligned with KeyboardCodesSet.ID_TO_NAME[],
+     * KeyboardCodesSet.DEFAULT[] and KeyboardCodesSet.RTL[]
+     */
+    public static final int CODE_SHIFT = -1;
+    public static final int CODE_SWITCH_ALPHA_SYMBOL = -2;
+    public static final int CODE_OUTPUT_TEXT = -3;
+    public static final int CODE_DELETE = -4;
+    public static final int CODE_SETTINGS = -5;
+    public static final int CODE_SHORTCUT = -6;
+    public static final int CODE_ACTION_ENTER = -7;
+    public static final int CODE_ACTION_NEXT = -8;
+    public static final int CODE_ACTION_PREVIOUS = -9;
+    public static final int CODE_LANGUAGE_SWITCH = -10;
+    public static final int CODE_RESEARCH = -11;
+    // Code value representing the code is not specified.
+    public static final int CODE_UNSPECIFIED = -12;
+
+    public static boolean isLetterCode(final int code) {
+        return code >= CODE_SPACE;
+    }
+
+    public static String printableCode(final int code) {
+        switch (code) {
+        case CODE_SHIFT: return "shift";
+        case CODE_SWITCH_ALPHA_SYMBOL: return "symbol";
+        case CODE_OUTPUT_TEXT: return "text";
+        case CODE_DELETE: return "delete";
+        case CODE_SETTINGS: return "settings";
+        case CODE_SHORTCUT: return "shortcut";
+        case CODE_ACTION_ENTER: return "actionEnter";
+        case CODE_ACTION_NEXT: return "actionNext";
+        case CODE_ACTION_PREVIOUS: return "actionPrevious";
+        case CODE_LANGUAGE_SWITCH: return "languageSwitch";
+        case CODE_UNSPECIFIED: return "unspec";
+        case CODE_TAB: return "tab";
+        case CODE_ENTER: return "enter";
+        default:
+            if (code <= 0) Log.w(TAG, "Unknown non-positive key code=" + code);
+            if (code < CODE_SPACE) return String.format("'\\u%02x'", code);
+            if (code < 0x100) return String.format("'%c'", code);
+            return String.format("'\\u%04x'", code);
+        }
+    }
+
     private Constants() {
         // This utility class is not publicly instantiable.
     }