Issue 2720 - [Adblocking settings] Add the other filter lists category

mobile/android/thirdparty/org/adblockplus/browser/UrlInputDialog.java

+/*
+ * This file is part of Adblock Plus <https://adblockplus.org/>,
+ * Copyright (C) 2006-2015 Eyeo GmbH
+ *
+ * Adblock Plus is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * Adblock Plus is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.adblockplus.browser;
+
+import org.mozilla.gecko.R;
+
+import android.app.Dialog;
+import android.content.Context;
+import android.os.Bundle;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.util.Patterns;
+import android.view.KeyEvent;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.inputmethod.EditorInfo;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+import android.widget.TextView.OnEditorActionListener;
+
+public class UrlInputDialog extends Dialog implements TextWatcher,
+    OnEditorActionListener, OnClickListener
+{
+  private static final int BUTTON_ENABLED_COLOR = 0xff0099cc;
+  private static final int BUTTON_DISABLED_COLOR = 0xffc5dfe8;
+  private final Type type;
+  private final UrlReadyCallback callback;
+
+  private EditText editText = null;
+  private Button button = null;
+
+  private boolean submitEnabled = false;
+  private boolean triedSubmit = false;
+  private String currentEditTextValue = null;
+
+  public enum Type
+  {
+    ADD_BLOCKING_LIST,
+    ADD_WHITELIST
+  }
+
+  public UrlInputDialog(final Context context, final Type type, final UrlReadyCallback callback)
+  {
+    super(context);
+    this.type = type;
+    this.callback = callback;
+  }
+
+  @Override
+  protected void onCreate(final Bundle savedInstanceState)
+  {
+    super.onCreate(savedInstanceState);
+    this.setContentView(R.layout.abb_url_input_dialog);
+
+    this.editText = (EditText) this.findViewById(R.id.abb_listadd_textinput);
+    this.button = (Button) this.findViewById(R.id.abb_listadd_button);
+
+    this.setCanceledOnTouchOutside(true);
+    this.setCancelable(true);
+
+    this.editText.addTextChangedListener(this);
+    this.editText.setOnEditorActionListener(this);
+    this.editText.requestFocus();
+
+    this.button.setOnClickListener(this);
+
+    if (this.currentEditTextValue != null)
+    {
+      this.editText.setText(this.currentEditTextValue);
+    }
+    this.updateButtonState();
+
+    switch (this.type)
+    {
+      case ADD_BLOCKING_LIST:
+        this.button.setText(R.string.abb_block_list_button);
+        this.editText.setHint(R.string.abb_block_list_url);
+        this.setTitle(R.string.abb_pref_category_add_other_list);
+        break;
+      default:
+        break;
+    }
+  }
+
+  private void updateButtonState()
+  {
+    this.button.setEnabled(this.submitEnabled);
+    this.button.setBackgroundColor(this.submitEnabled
+        ? BUTTON_ENABLED_COLOR
+        : BUTTON_DISABLED_COLOR);
+    this.button.invalidate();
+  }
+
+  @Override
+  public void afterTextChanged(final Editable s)
+  {
+    this.currentEditTextValue = s.toString();
+    this.submitEnabled = this.validateUrl(this.currentEditTextValue) != null;
+    if (this.submitEnabled)
+    {
+      this.editText.setError(null);
+    }
+    else if (this.triedSubmit)
+    {
+      this.editText.setError(this.getContext().getString(R.string.abb_invalid_url));
+    }
+    this.updateButtonState();
+  }
+
+  @Override
+  public void beforeTextChanged(final CharSequence s, final int start, final int count,
+      final int after)
+  {
+    // ignored
+  }
+
+  @Override
+  public void onTextChanged(final CharSequence s, final int start, final int before, final int count)
+  {
+    // ignored
+  }
+
+  private String validateUrl(final String possibleUrl)
+  {
+    String url = possibleUrl.trim();
+    if (Patterns.WEB_URL.matcher(url).matches())
+    {
+      return url;
+    }
+    url = "http://" + url;
+    if (Patterns.WEB_URL.matcher(url).matches())
+    {
+      return url;
+    }
+    return null;
+  }
+
+  private void validateAndSubmit(final String inputText)
+  {
+    final String url = this.validateUrl(inputText);
+    this.triedSubmit = true;
+    if (url == null)
+    {
+      this.editText.setError(this.getContext().getString(R.string.abb_invalid_url));
+    }
+    else
+    {
+      this.editText.setError(null);
+      this.dismiss();
+      this.callback.callback(url);
+    }
+  }
+
+  @Override
+  public boolean onEditorAction(final TextView v, final int actionId, final KeyEvent event)
+  {
+    if (actionId == EditorInfo.IME_ACTION_DONE)
+    {
+      if (this.currentEditTextValue != null)
+      {
+        this.validateAndSubmit(this.currentEditTextValue);
+      }
+      return true;
+    }
+    return false;
+  }
+
+  public interface UrlReadyCallback
+  {
+    public void callback(String url);
+  }
+
+  @Override
+  public void onClick(final View v)
+  {
+    if (this.currentEditTextValue != null)
+    {
+      this.validateAndSubmit(this.currentEditTextValue);
+    }
+  }
+}