GeneralPreferencesFragment.java revision a7dde6b22f08d141642514cca908f1080fd46477 
1/*
2 * Copyright (C) 2010 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
17package com.android.browser.preferences;
18
19import android.app.AlertDialog;
20import android.content.DialogInterface;
21import android.content.DialogInterface.OnClickListener;
22import android.content.res.Resources;
23import android.os.Bundle;
24import android.preference.ListPreference;
25import android.preference.Preference;
26import android.preference.PreferenceFragment;
27import android.preference.PreferenceScreen;
28import android.text.InputType;
29import android.text.TextUtils;
30import android.util.Log;
31import android.view.KeyEvent;
32import android.view.WindowManager;
33import android.view.inputmethod.EditorInfo;
34import android.widget.EditText;
35import android.widget.TextView;
36import android.widget.TextView.OnEditorActionListener;
37
38import com.android.browser.BrowserPreferencesPage;
39import com.android.browser.BrowserSettings;
40import com.android.browser.PreferenceKeys;
41import com.android.browser.R;
42import com.android.browser.UrlUtils;
43import com.android.browser.homepages.HomeProvider;
44
45public class GeneralPreferencesFragment extends PreferenceFragment
46        implements Preference.OnPreferenceChangeListener {
47
48    static final String TAG = "PersonalPreferencesFragment";
49
50    static final String BLANK_URL = "about:blank";
51    static final String CURRENT = "current";
52    static final String BLANK = "blank";
53    static final String DEFAULT = "default";
54    static final String MOST_VISITED = "most_visited";
55    static final String OTHER = "other";
56
57    static final String PREF_HOMEPAGE_PICKER = "homepage_picker";
58
59    String[] mChoices, mValues;
60    String mCurrentPage;
61
62    @Override
63    public void onCreate(Bundle savedInstanceState) {
64        super.onCreate(savedInstanceState);
65        Resources res = getActivity().getResources();
66        mChoices = res.getStringArray(R.array.pref_homepage_choices);
67        mValues = res.getStringArray(R.array.pref_homepage_values);
68        mCurrentPage = getActivity().getIntent()
69                .getStringExtra(BrowserPreferencesPage.CURRENT_PAGE);
70
71        // Load the XML preferences file
72        addPreferencesFromResource(R.xml.general_preferences);
73
74        ListPreference pref = (ListPreference) findPreference(PREF_HOMEPAGE_PICKER);
75        pref.setSummary(getHomepageSummary());
76        pref.setPersistent(false);
77        pref.setValue(getHomepageValue());
78        pref.setOnPreferenceChangeListener(this);
79    }
80
81    @Override
82    public boolean onPreferenceChange(Preference pref, Object objValue) {
83        if (getActivity() == null) {
84            // We aren't attached, so don't accept preferences changes from the
85            // invisible UI.
86            Log.w("PageContentPreferencesFragment", "onPreferenceChange called from detached fragment!");
87            return false;
88        }
89
90        if (pref.getKey().equals(PREF_HOMEPAGE_PICKER)) {
91            BrowserSettings settings = BrowserSettings.getInstance();
92            if (CURRENT.equals(objValue)) {
93                settings.setHomePage(mCurrentPage);
94            }
95            if (BLANK.equals(objValue)) {
96                settings.setHomePage(BLANK_URL);
97            }
98            if (DEFAULT.equals(objValue)) {
99                settings.setHomePage(BrowserSettings.getFactoryResetHomeUrl(
100                        getActivity()));
101            }
102            if (MOST_VISITED.equals(objValue)) {
103                settings.setHomePage(HomeProvider.MOST_VISITED);
104            }
105            if (OTHER.equals(objValue)) {
106                promptForHomepage((ListPreference) pref);
107                return false;
108            }
109            pref.setSummary(getHomepageSummary());
110            ((ListPreference)pref).setValue(getHomepageValue());
111            return false;
112        }
113
114        return true;
115    }
116
117    void promptForHomepage(final ListPreference pref) {
118        final BrowserSettings settings = BrowserSettings.getInstance();
119        final EditText editText = new EditText(getActivity());
120        editText.setInputType(InputType.TYPE_CLASS_TEXT
121                | InputType.TYPE_TEXT_VARIATION_URI);
122        editText.setText(settings.getHomePage());
123        editText.setSelectAllOnFocus(true);
124        editText.setSingleLine(true);
125        editText.setImeActionLabel(null, EditorInfo.IME_ACTION_DONE);
126        final AlertDialog dialog = new AlertDialog.Builder(getActivity())
127                .setView(editText)
128                .setPositiveButton(android.R.string.ok, new OnClickListener() {
129                    @Override
130                    public void onClick(DialogInterface dialog, int which) {
131                        String homepage = editText.getText().toString().trim();
132                        homepage = UrlUtils.smartUrlFilter(homepage);
133                        settings.setHomePage(homepage);
134                        pref.setValue(getHomepageValue());
135                        pref.setSummary(getHomepageSummary());
136                    }
137                })
138                .setNegativeButton(android.R.string.cancel, new OnClickListener() {
139                    @Override
140                    public void onClick(DialogInterface dialog, int which) {
141                        dialog.cancel();
142                    }
143                })
144                .setTitle(R.string.pref_set_homepage_to)
145                .create();
146        editText.setOnEditorActionListener(new OnEditorActionListener() {
147            @Override
148            public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
149                if (actionId == EditorInfo.IME_ACTION_DONE) {
150                    dialog.getButton(AlertDialog.BUTTON_POSITIVE).performClick();
151                    return true;
152                }
153                return false;
154            }
155        });
156        dialog.getWindow().setSoftInputMode(
157                WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
158        dialog.show();
159    }
160
161    String getHomepageValue() {
162        BrowserSettings settings = BrowserSettings.getInstance();
163        String homepage = settings.getHomePage();
164        if (TextUtils.isEmpty(homepage) || BLANK_URL.endsWith(homepage)) {
165            return BLANK;
166        }
167        if (HomeProvider.MOST_VISITED.equals(homepage)) {
168            return MOST_VISITED;
169        }
170        String defaultHomepage = BrowserSettings.getFactoryResetHomeUrl(
171                getActivity());
172        if (TextUtils.equals(defaultHomepage, homepage)) {
173            return DEFAULT;
174        }
175        if (TextUtils.equals(mCurrentPage, homepage)) {
176            return CURRENT;
177        }
178        return OTHER;
179    }
180
181    String getHomepageSummary() {
182        BrowserSettings settings = BrowserSettings.getInstance();
183        if (settings.useMostVisitedHomepage()) {
184            return getHomepageLabel(MOST_VISITED);
185        }
186        String homepage = settings.getHomePage();
187        if (TextUtils.isEmpty(homepage) || BLANK_URL.equals(homepage)) {
188            return getHomepageLabel(BLANK);
189        }
190        return homepage;
191    }
192
193    String getHomepageLabel(String value) {
194        for (int i = 0; i < mValues.length; i++) {
195            if (value.equals(mValues[i])) {
196                return mChoices[i];
197            }
198        }
199        return null;
200    }
201
202    @Override
203    public void onResume() {
204        super.onResume();
205
206        refreshUi();
207    }
208
209    void refreshUi() {
210        PreferenceScreen autoFillSettings =
211                (PreferenceScreen)findPreference(PreferenceKeys.PREF_AUTOFILL_PROFILE);
212        autoFillSettings.setDependency(PreferenceKeys.PREF_AUTOFILL_ENABLED);
213    }
214}
215