Added homepage button, altered tab UI slightly, fixed URL validation

app/src/main/java/acr/browser/lightning/activity/BrowserActivity.java

@@ -50,6 +50,7 @@ import android.support.v7.graphics.Palette;
 import android.support.v7.widget.Toolbar;
 import android.text.TextUtils;
 import android.util.Log;
+import android.util.Patterns;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.Menu;
@@ -303,24 +304,19 @@ public abstract class BrowserActivity extends ThemableBrowserActivity implements
         lp.height = LayoutParams.MATCH_PARENT;
         v.setLayoutParams(lp);
 
-        LinearLayout searchContainer = (LinearLayout) v.findViewById(R.id.search_container);
-        LinearLayout.LayoutParams p = (LinearLayout.LayoutParams) searchContainer.getLayoutParams();
-        int leftMargin = !mShowTabsInDrawer ? Utils.dpToPx(10) : Utils.dpToPx(2);
-        p.setMargins(leftMargin, Utils.dpToPx(8), Utils.dpToPx(2), Utils.dpToPx(6));
-        searchContainer.setLayoutParams(p);
-
-        mArrowDrawable = new DrawerArrowDrawable(this);
         mArrowImage = (ImageView) actionBar.getCustomView().findViewById(R.id.arrow);
-        // Use hardware acceleration for the animation
-        mArrowImage.setLayerType(View.LAYER_TYPE_HARDWARE, null);
-        mArrowImage.setImageDrawable(mArrowDrawable);
         FrameLayout arrowButton = (FrameLayout) actionBar.getCustomView().findViewById(
                 R.id.arrow_button);
         if (mShowTabsInDrawer) {
-            arrowButton.setOnClickListener(this);
+            // Use hardware acceleration for the animation
+            mArrowDrawable = new DrawerArrowDrawable(this);
+            mArrowImage.setLayerType(View.LAYER_TYPE_HARDWARE, null);
+            mArrowImage.setImageDrawable(mArrowDrawable);
         } else {
-            arrowButton.setVisibility(View.GONE);
+            mArrowImage.setImageResource(R.drawable.ic_action_home);
+            mArrowImage.setColorFilter(mIconColor, PorterDuff.Mode.SRC_IN);
         }
+        arrowButton.setOnClickListener(this);
 
         mProxyUtils = ProxyUtils.getInstance(this);
 
@@ -513,7 +509,9 @@ public abstract class BrowserActivity extends ThemableBrowserActivity implements
 
                     @Override
                     public void run() {
-                        mArrowImage.startAnimation(anim);
+                        if (mArrowDrawable != null) {
+                            mArrowImage.startAnimation(anim);
+                        }
                     }
 
                 }, 100);
@@ -1538,13 +1536,14 @@ public abstract class BrowserActivity extends ThemableBrowserActivity implements
         boolean validURL = (query.startsWith("ftp://") || query.startsWith(Constants.HTTP)
                 || query.startsWith(Constants.FILE) || query.startsWith(Constants.HTTPS))
                 || isIPAddress;
-        boolean isSearch = ((query.contains(" ") || !containsPeriod) && !aboutScheme);
-
         if (isIPAddress
                 && (!query.startsWith(Constants.HTTP) || !query.startsWith(Constants.HTTPS))) {
             query = Constants.HTTP + query;
         }
 
+        validURL |= Patterns.WEB_URL.matcher(query).matches();
+        boolean isSearch = !validURL;
+
         if (isSearch) {
             try {
                 query = URLEncoder.encode(query, "UTF-8");
@@ -2883,6 +2882,8 @@ public abstract class BrowserActivity extends ThemableBrowserActivity implements
                     mCurrentView.requestFocus();
                 } else if (mShowTabsInDrawer) {
                     mDrawerLayout.openDrawer(mDrawerLeft);
+                } else if (mCurrentView != null) {
+                    mCurrentView.loadHomepage();
                 }
                 break;
             case R.id.new_tab_button:

app/src/main/java/acr/browser/lightning/view/LightningView.java

@@ -146,13 +146,20 @@ public class LightningView {
                 // don't load anything, the user is looking for a blank tab
             }
         } else {
-            if (mHomepage.startsWith("about:home")) {
-                mWebView.loadUrl(getHomepage());
-            } else if (mHomepage.startsWith("about:bookmarks")) {
-                mBrowserController.openBookmarkPage(mWebView);
-            } else {
-                mWebView.loadUrl(mHomepage);
-            }
+            loadHomepage();
+        }
+    }
+
+    public void loadHomepage() {
+        if (mWebView == null) {
+            return;
+        }
+        if (mHomepage.startsWith("about:home")) {
+            mWebView.loadUrl(getHomepage());
+        } else if (mHomepage.startsWith("about:bookmarks")) {
+            mBrowserController.openBookmarkPage(mWebView);
+        } else {
+            mWebView.loadUrl(mHomepage);
         }
     }
 
@@ -263,7 +270,7 @@ public class LightningView {
      *
      * @param settings the WebSettings object to use, you can pass in null
      *                 if you don't have a reference to them
-     * @param context the context in which the WebView was created
+     * @param context  the context in which the WebView was created
      */
     public synchronized void initializePreferences(@Nullable WebSettings settings, Context context) {
         if (settings == null && mWebView == null) {
@@ -378,7 +385,7 @@ public class LightningView {
      * be altered by the user. Distinguish between Incognito and Regular tabs here.
      *
      * @param settings the WebSettings object to use.
-     * @param context the Context which was used to construct the WebView.
+     * @param context  the Context which was used to construct the WebView.
      */
     private void initializeSettings(WebSettings settings, Context context) {
         if (API < Build.VERSION_CODES.JELLY_BEAN_MR2) {

app/src/main/res/layout/tab_list_item_horizontal.xml

@@ -11,10 +11,10 @@
 
     <ImageView
         android:id="@+id/faviconTab"
-        android:layout_width="24dp"
-        android:layout_height="24dp"
-        android:layout_marginLeft="5dp"
-        android:layout_marginRight="5dp"
+        android:layout_width="20dp"
+        android:layout_height="20dp"
+        android:layout_marginLeft="7dp"
+        android:layout_marginRight="7dp"
         android:contentDescription="Favicon"
         android:gravity="center_vertical" />