Bug 836589 - Lazily switch between AwesomeBar search and URL modes; r=blassey

mobile/android/base/AwesomeBar.java

@@ -319,7 +319,9 @@ public class AwesomeBar extends GeckoActivity {
         int imageResource = R.drawable.ic_awesomebar_go;
         String contentDescription = getString(R.string.go);
         int imeAction = EditorInfo.IME_ACTION_GO;
-        if (StringUtils.isSearchQuery(text)) {
+
+        int actionBits = mText.getImeOptions() & EditorInfo.IME_MASK_ACTION;
+        if (StringUtils.isSearchQuery(text, actionBits == EditorInfo.IME_ACTION_SEARCH)) {
             imageResource = R.drawable.ic_awesomebar_search;
             contentDescription = getString(R.string.search);
             imeAction = EditorInfo.IME_ACTION_SEARCH;
@@ -331,12 +333,12 @@ public class AwesomeBar extends GeckoActivity {
         if (imm == null) {
             return;
         }
-        int actionBits = mText.getImeOptions() & EditorInfo.IME_MASK_ACTION;
         if (actionBits != imeAction) {
             int optionBits = mText.getImeOptions() & ~EditorInfo.IME_MASK_ACTION;
             mText.setImeOptions(optionBits | imeAction);
 
-            mDelayRestartInput = InputMethods.shouldDelayAwesomebarUpdate(mText.getContext());
+            mDelayRestartInput = (imeAction == EditorInfo.IME_ACTION_GO) &&
+                                 (InputMethods.shouldDelayAwesomebarUpdate(mText.getContext()));
             if (!mDelayRestartInput) {
                 imm.restartInput(mText);
             }
@@ -453,8 +455,13 @@ public class AwesomeBar extends GeckoActivity {
     @Override
     public void onResume() {
         super.onResume();
-        if (mText != null && mText.getText() != null)
+        if (mText != null && mText.getText() != null) {
             updateGoButton(mText.getText().toString());
+            if (mDelayRestartInput) {
+                // call updateGoButton again to force a restartInput call
+                updateGoButton(mText.getText().toString());
+            }
+        }
 
         // Invlidate the cached value that keeps track of whether or
         // not desktop bookmarks exist

mobile/android/base/awesomebar/AllPagesTab.java

@@ -460,7 +460,7 @@ public class AllPagesTab extends AwesomeBarTab implements GeckoEventListener {
                         // first suggestion item) and the search matches a URL
                         // pattern, go to that URL. Otherwise, do a search for
                         // the term.
-                        if (v != viewHolder.userEnteredView && !StringUtils.isSearchQuery(suggestion)) {
+                        if (v != viewHolder.userEnteredView && !StringUtils.isSearchQuery(suggestion, false)) {
                             listener.onUrlOpen(suggestion, null);
                         } else {
                             listener.onSearch(engine.name, suggestion);

mobile/android/base/util/StringUtils.java

@@ -7,7 +7,9 @@ package org.mozilla.gecko.util;
 
 public class StringUtils {
     /*
-     * This method tries to guess if the given string could be a search query or URL
+     * This method tries to guess if the given string could be a search query or URL,
+     * and returns a previous result if there is ambiguity
+     *
      * Search examples:
      *  foo
      *  foo bar.com
@@ -18,19 +20,28 @@ public class StringUtils {
      *  foo.c
      *  :foo
      *  http://foo.com bar
+     *
+     * wasSearchQuery specifies whether text was a search query before the latest change
+     * in text. In ambiguous cases where the new text can be either a search or a URL,
+     * wasSearchQuery is returned
     */
-    public static boolean isSearchQuery(String text) {
-        text = text.trim();
+    public static boolean isSearchQuery(String text, boolean wasSearchQuery) {
         if (text.length() == 0)
-            return false;
+            return wasSearchQuery;
 
         int colon = text.indexOf(':');
         int dot = text.indexOf('.');
         int space = text.indexOf(' ');
 
-        // If a space is found before any dot or colon, we assume this is a search query
-        boolean spacedOut = space > -1 && (space < colon || space < dot);
-
-        return spacedOut || (dot == -1 && colon == -1);
+        // If a space is found before any dot and colon, we assume this is a search query
+        if (space > -1 && (colon == -1 || space < colon) && (dot == -1 || space < dot)) {
+            return true;
+        }
+        // Otherwise, if a dot or a colon is found, we assume this is a URL
+        if (dot > -1 || colon > -1) {
+            return false;
+        }
+        // Otherwise, text is ambiguous, and we keep its status unchanged
+        return wasSearchQuery;
     }
 }