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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.browser;
     18 
     19 import android.app.AlertDialog;
     20 import android.content.Context;
     21 import android.os.Bundle;
     22 import android.preference.EditTextPreference;
     23 import android.widget.Button;
     24 import android.widget.EditText;
     25 import android.widget.LinearLayout;
     26 import android.view.Gravity;
     27 import android.view.View;
     28 import android.view.ViewGroup;
     29 import android.view.Window;
     30 import android.view.WindowManager;
     31 import android.util.AttributeSet;
     32 
     33 public class BrowserHomepagePreference extends EditTextPreference {
     34     private String mCurrentPage;
     35 
     36     public BrowserHomepagePreference(Context context, AttributeSet attrs,
     37             int defStyle) {
     38         super(context, attrs, defStyle);
     39     }
     40 
     41     public BrowserHomepagePreference(Context context, AttributeSet attrs) {
     42         super(context, attrs);
     43     }
     44 
     45     public BrowserHomepagePreference(Context context) {
     46         super(context);
     47     }
     48 
     49     @Override
     50     protected void onAddEditTextToDialogView(View dialogView,
     51             EditText editText) {
     52         super.onAddEditTextToDialogView(dialogView, editText);
     53         // Now the EditText has a parent.  Add a button to set to the current
     54         // page.
     55         ViewGroup parent = (ViewGroup) editText.getParent();
     56         Button button = new Button(getContext());
     57         button.setText(R.string.pref_use_current);
     58         button.setOnClickListener(new View.OnClickListener() {
     59             public void onClick(View v) {
     60                 getEditText().setText(mCurrentPage);
     61             }
     62         });
     63         if (parent instanceof LinearLayout) {
     64             ((LinearLayout) parent).setGravity(Gravity.CENTER_HORIZONTAL);
     65         }
     66         parent.addView(button, ViewGroup.LayoutParams.WRAP_CONTENT,
     67                 ViewGroup.LayoutParams.WRAP_CONTENT);
     68     }
     69 
     70     @Override
     71     protected void onDialogClosed(boolean positiveResult) {
     72         if (positiveResult) {
     73             String url = getEditText().getText().toString();
     74             if (url.length() > 0
     75                     && !BrowserActivity.ACCEPTED_URI_SCHEMA.matcher(url)
     76                             .matches()) {
     77                 int colon = url.indexOf(':');
     78                 int space = url.indexOf(' ');
     79                 if (colon == -1 && space == -1) {
     80                     // if no colon, no space, add "http://" to make it a url
     81                     getEditText().setText("http://" + url);
     82                 } else {
     83                     // show an error dialog and change the positiveResult to
     84                     // false so that the bad url will not override the old url
     85                     new AlertDialog.Builder(this.getContext()).setMessage(
     86                             R.string.bookmark_url_not_valid).setPositiveButton(
     87                             R.string.ok, null).show();
     88                     positiveResult = false;
     89                 }
     90             }
     91         }
     92         super.onDialogClosed(positiveResult);
     93     }
     94 
     95     /**
     96      * Set the current page of the browser.
     97      * @param currentPage This String will replace the text in the EditText
     98      *          when the user clicks the "Use current page" button.
     99      */
    100     /* package */ void setCurrentPage(String currentPage) {
    101         mCurrentPage = currentPage;
    102     }
    103 
    104     @Override
    105     protected void showDialog(Bundle state) {
    106         super.showDialog(state);
    107         // The dialog has its width set to wrap_content.  Change it to
    108         // match_parent so there is more room to type in a url.
    109         Window window = getDialog().getWindow();
    110         View decorView = window.getDecorView();
    111         WindowManager.LayoutParams params
    112                 = (WindowManager.LayoutParams) decorView.getLayoutParams();
    113         params.width = ViewGroup.LayoutParams.MATCH_PARENT;
    114         window.getWindowManager().updateViewLayout(decorView, params);
    115     }
    116 }
    117