commit 9bb763ed06f29db2d583208338b1ff780712c260
author Axesh  R. Ajmera <aajmera@codeaurora.org> Fri Apr 04 15:37:34 2014 -0700
committer WebTech Code Review <code-review@localhost> Tue Apr 08 08:01:17 2014 -0700
tree 7b240b00439f917b0eecbcccb9ecc17e5a6af68f
parent a8b54b4182362e5f373bab7592adcec7d263f0f0

Set character limit for URL

  - Display toast when user crosses the threshold

Change-Id: I1d53ede31ce75f5c342838d1c831f0ec79fd22ab

src/com/android/browser/UrlInputView.java

diff --git a/src/com/android/browser/UrlInputView.java b/src/com/android/browser/UrlInputView.java
index 24dfce9..9cdc423 100644
--- a/src/com/android/browser/UrlInputView.java
+++ b/src/com/android/browser/UrlInputView.java
@@ -21,10 +21,14 @@
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.text.Editable;
+import android.text.InputFilter;
+import android.text.InputFilter.LengthFilter;
+import android.text.Spanned;
 import android.text.TextUtils;
 import android.text.TextWatcher;
 import android.util.AttributeSet;
 import android.util.Patterns;
+import android.view.Gravity;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
 import android.view.View;
@@ -37,6 +41,7 @@
 import android.widget.AutoCompleteTextView;
 import android.widget.TextView;
 import android.widget.TextView.OnEditorActionListener;
+import android.widget.Toast;
 
 import com.android.browser.SuggestionsAdapter.CompletionListener;
 import com.android.browser.SuggestionsAdapter.SuggestItem;
@@ -57,6 +62,7 @@
     static final String SUGGESTED = "browser-suggest";
 
     static final int POST_DELAY = 100;
+    static final int URL_MAX_LENGTH = 2048;
 
     static interface StateListener {
         static final int STATE_NORMAL = 0;
@@ -73,6 +79,7 @@
     private boolean mLandscape;
     private boolean mIncognitoMode;
     private boolean mNeedsUpdate;
+    private Context mContext;
 
     private int mState;
     private StateListener mStateListener;
@@ -127,6 +134,11 @@
         addTextChangedListener(this);
 
         mState = StateListener.STATE_NORMAL;
+        mContext = ctx;
+
+        this.setFilters(new InputFilter[] {
+            new UrlLengthFilter(URL_MAX_LENGTH)
+        });
     }
 
     protected void onFocusChanged(boolean focused, int direction, Rect prevRect) {
@@ -371,4 +383,28 @@
     @Override
     public void afterTextChanged(Editable s) { }
 
+    /**
+     * It will prompt the toast if the text length greater than the given length.
+     */
+    private class UrlLengthFilter extends LengthFilter {
+        public UrlLengthFilter(int max) {
+            super(max);
+        }
+
+        @Override
+        public CharSequence filter(CharSequence source, int start, int end, Spanned dest,
+                int dstart, int dend) {
+            CharSequence result = super.filter(source, start, end, dest, dstart, dend);
+            if (result != null) {
+                // If the result is not null, it means the text length is greater than
+                // the given length. We will prompt the toast to alert the user.
+                CharSequence alert = getResources().getString(R.string.max_url_character_limit_msg);
+                Toast t = Toast.makeText(mContext , alert, Toast.LENGTH_SHORT);
+                t.setGravity(Gravity.CENTER, 0, 0);
+                t.show();
+            }
+            return result;
+        }
+    }
+
 }