[Android] Adding Smart GO/NEXT feature in Chrome

content/public/android/java/src/org/chromium/content/browser/input/ImeUtils.java

Index: content/public/android/java/src/org/chromium/content/browser/input/ImeUtils.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/input/ImeUtils.java b/content/public/android/java/src/org/chromium/content/browser/input/ImeUtils.java
index dc171af07f350c9538cf26b87b3c23ebbd23f938..8ef905d684604dc22e7a025522509b06b8d836dc 100644
--- a/content/public/android/java/src/org/chromium/content/browser/input/ImeUtils.java
+++ b/content/public/android/java/src/org/chromium/content/browser/input/ImeUtils.java
@@ -48,7 +48,6 @@ public class ImeUtils {
         if (inputMode == WebTextInputMode.DEFAULT) {
             if (inputType == TextInputType.TEXT) {
                 // Normal text field
-                imeAction = EditorInfo.IME_ACTION_GO;
                 if ((inputFlags & WebTextInputFlags.AUTOCORRECT_OFF) == 0) {
                     outAttrs.inputType |= EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT;
                 }
@@ -58,33 +57,25 @@ public class ImeUtils {
                 if ((inputFlags & WebTextInputFlags.AUTOCORRECT_OFF) == 0) {
                     outAttrs.inputType |= EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT;
                 }
-                imeAction = EditorInfo.IME_ACTION_NONE;
             } else if (inputType == TextInputType.PASSWORD) {
                 outAttrs.inputType =
                         InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_WEB_PASSWORD;
-                imeAction = EditorInfo.IME_ACTION_GO;
-            } else if (inputType == TextInputType.SEARCH) {
-                imeAction = EditorInfo.IME_ACTION_SEARCH;
             } else if (inputType == TextInputType.URL) {
                 outAttrs.inputType = InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_URI;
-                imeAction = EditorInfo.IME_ACTION_GO;
             } else if (inputType == TextInputType.EMAIL) {
                 // Email
                 outAttrs.inputType =
                         InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS;
-                imeAction = EditorInfo.IME_ACTION_GO;
             } else if (inputType == TextInputType.TELEPHONE) {
                 // Telephone
                 // Number and telephone do not have both a Tab key and an
                 // action in default OSK, so set the action to NEXT
                 outAttrs.inputType = InputType.TYPE_CLASS_PHONE;
-                imeAction = EditorInfo.IME_ACTION_NEXT;
             } else if (inputType == TextInputType.NUMBER) {
                 // Number
                 outAttrs.inputType = InputType.TYPE_CLASS_NUMBER
                         | InputType.TYPE_NUMBER_VARIATION_NORMAL
                         | InputType.TYPE_NUMBER_FLAG_DECIMAL;
-                imeAction = EditorInfo.IME_ACTION_NEXT;
             }
         } else {
             switch (inputMode) {
@@ -102,31 +93,41 @@ public class ImeUtils {
                     if ((inputFlags & WebTextInputFlags.AUTOCORRECT_OFF) == 0) {
                         outAttrs.inputType |= EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT;
                     }
-                    imeAction = EditorInfo.IME_ACTION_NONE;
                     break;
                 case WebTextInputMode.NUMERIC:
                     outAttrs.inputType =
                             InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_VARIATION_NORMAL;
-                    imeAction = EditorInfo.IME_ACTION_NEXT;
                     break;
                 case WebTextInputMode.TEL:
                     outAttrs.inputType = InputType.TYPE_CLASS_PHONE;
-                    imeAction = EditorInfo.IME_ACTION_NEXT;
                     break;
                 case WebTextInputMode.EMAIL:
                     outAttrs.inputType = InputType.TYPE_CLASS_TEXT
                             | InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS;
-                    imeAction = EditorInfo.IME_ACTION_GO;
                     break;
                 case WebTextInputMode.URL:
                     outAttrs.inputType =
                             InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_URI;
-                    imeAction = EditorInfo.IME_ACTION_NEXT;
                     break;
             }
         }
 
+        if (inputMode == WebTextInputMode.DEFAULT && inputType == TextInputType.SEARCH) {
+            imeAction |= EditorInfo.IME_ACTION_SEARCH;
+        } else if ((outAttrs.inputType & EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) != 0) {
+            // For textarea that sends you to another webpage on enter key press using
+            // JavaScript, we will only show ENTER.
+            imeAction |= EditorInfo.IME_ACTION_NONE;
+        } else if ((inputFlags & WebTextInputFlags.HAVE_NEXT_FOCUSABLE_ELEMENT) != 0) {
+            imeAction |= EditorInfo.IME_ACTION_NEXT;
+        } else {
+            // For last element inside form, we should give preference to GO key as PREVIOUS
+            // has less importance in those cases.
+            imeAction |= EditorInfo.IME_ACTION_GO;
+        }
+
         outAttrs.imeOptions |= imeAction;
+
         // Handling of autocapitalize. Blink will send the flag taking into account the element's
         // type. This is not using AutocapitalizeNone because Android does not autocapitalize by
         // default and there is no way to express no capitalization.