Home | History | Annotate | Download | only in browser 
      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 java.util.List;
     20 import java.util.Map;
     21 import java.util.Set;
     22 import java.util.Vector;
     23 
     24 import android.content.Intent;
     25 import android.net.Uri;
     26 import android.os.Bundle;
     27 import android.preference.EditTextPreference;
     28 import android.preference.ListPreference;
     29 import android.preference.Preference;
     30 import android.preference.PreferenceActivity;
     31 import android.preference.PreferenceScreen;
     32 import android.util.Log;
     33 import android.webkit.GeolocationPermissions;
     34 import android.webkit.ValueCallback;
     35 import android.webkit.WebStorage;
     36 import android.webkit.WebView;
     37 
     38 public class BrowserPreferencesPage extends PreferenceActivity
     39         implements Preference.OnPreferenceChangeListener {
     40 
     41     private String LOGTAG = "BrowserPreferencesPage";
     42     /* package */ static final String CURRENT_PAGE = "currentPage";
     43 
     44     @Override
     45     protected void onCreate(Bundle savedInstanceState) {
     46         super.onCreate(savedInstanceState);
     47 
     48         // Load the XML preferences file
     49         addPreferencesFromResource(R.xml.browser_preferences);
     50 
     51         Preference e = findPreference(BrowserSettings.PREF_HOMEPAGE);
     52         e.setOnPreferenceChangeListener(this);
     53         e.setSummary(getPreferenceScreen().getSharedPreferences()
     54                 .getString(BrowserSettings.PREF_HOMEPAGE, null));
     55         ((BrowserHomepagePreference) e).setCurrentPage(
     56                 getIntent().getStringExtra(CURRENT_PAGE));
     57 
     58         e = findPreference(BrowserSettings.PREF_EXTRAS_RESET_DEFAULTS);
     59         e.setOnPreferenceChangeListener(this);
     60 
     61         e = findPreference(BrowserSettings.PREF_TEXT_SIZE);
     62         e.setOnPreferenceChangeListener(this);
     63         e.setSummary(getVisualTextSizeName(
     64                 getPreferenceScreen().getSharedPreferences()
     65                 .getString(BrowserSettings.PREF_TEXT_SIZE, null)) );
     66 
     67         e = findPreference(BrowserSettings.PREF_DEFAULT_ZOOM);
     68         e.setOnPreferenceChangeListener(this);
     69         e.setSummary(getVisualDefaultZoomName(
     70                 getPreferenceScreen().getSharedPreferences()
     71                 .getString(BrowserSettings.PREF_DEFAULT_ZOOM, null)) );
     72 
     73         e = findPreference(BrowserSettings.PREF_DEFAULT_TEXT_ENCODING);
     74         e.setOnPreferenceChangeListener(this);
     75 
     76         e = findPreference(BrowserSettings.PREF_CLEAR_HISTORY);
     77         e.setOnPreferenceChangeListener(this);
     78 
     79         if (BrowserSettings.getInstance().showDebugSettings()) {
     80             addPreferencesFromResource(R.xml.debug_preferences);
     81         }
     82 
     83         PreferenceScreen websiteSettings = (PreferenceScreen)
     84             findPreference(BrowserSettings.PREF_WEBSITE_SETTINGS);
     85         Intent intent = new Intent(this, WebsiteSettingsActivity.class);
     86         websiteSettings.setIntent(intent);
     87     }
     88 
     89     /*
     90      * We need to set the PreferenceScreen state in onResume(), as the number of
     91      * origins with active features (WebStorage, Geolocation etc) could have
     92      * changed after calling the WebsiteSettingsActivity.
     93      */
     94     @Override
     95     protected void onResume() {
     96         super.onResume();
     97         final PreferenceScreen websiteSettings = (PreferenceScreen)
     98             findPreference(BrowserSettings.PREF_WEBSITE_SETTINGS);
     99         websiteSettings.setEnabled(false);
    100         WebStorage.getInstance().getOrigins(new ValueCallback<Map>() {
    101             public void onReceiveValue(Map webStorageOrigins) {
    102                 if ((webStorageOrigins != null) && !webStorageOrigins.isEmpty()) {
    103                     websiteSettings.setEnabled(true);
    104                 }
    105             }
    106         });
    107         GeolocationPermissions.getInstance().getOrigins(new ValueCallback<Set<String> >() {
    108             public void onReceiveValue(Set<String> geolocationOrigins) {
    109                 if ((geolocationOrigins != null) && !geolocationOrigins.isEmpty()) {
    110                     websiteSettings.setEnabled(true);
    111                 }
    112             }
    113         });
    114     }
    115 
    116     @Override
    117     protected void onPause() {
    118         super.onPause();
    119 
    120         // sync the shared preferences back to BrowserSettings
    121         BrowserSettings.getInstance().syncSharedPreferences(
    122                 getPreferenceScreen().getSharedPreferences());
    123     }
    124 
    125     public boolean onPreferenceChange(Preference pref, Object objValue) {
    126         if (pref.getKey().equals(BrowserSettings.PREF_EXTRAS_RESET_DEFAULTS)) {
    127             Boolean value = (Boolean) objValue;
    128             if (value.booleanValue() == true) {
    129                 finish();
    130             }
    131         } else if (pref.getKey().equals(BrowserSettings.PREF_HOMEPAGE)) {
    132             String value = (String) objValue;
    133             boolean needUpdate = value.indexOf(' ') != -1;
    134             if (needUpdate) {
    135                 value = value.trim().replace(" ", "%20");
    136             }
    137             if (value.length() != 0 && Uri.parse(value).getScheme() == null) {
    138                 value = "http://" + value;
    139                 needUpdate = true;
    140             }
    141             // Set the summary value.
    142             pref.setSummary(value);
    143             if (needUpdate) {
    144                 // Update through the EditText control as it has a cached copy
    145                 // of the string and it will handle persisting the value
    146                 ((EditTextPreference) pref).setText(value);
    147 
    148                 // as we update the value above, we need to return false
    149                 // here so that setText() is not called by EditTextPref
    150                 // with the old value.
    151                 return false;
    152             } else {
    153                 return true;
    154             }
    155         } else if (pref.getKey().equals(BrowserSettings.PREF_TEXT_SIZE)) {
    156             pref.setSummary(getVisualTextSizeName((String) objValue));
    157             return true;
    158         } else if (pref.getKey().equals(BrowserSettings.PREF_DEFAULT_ZOOM)) {
    159             pref.setSummary(getVisualDefaultZoomName((String) objValue));
    160             return true;
    161         } else if (pref.getKey().equals(
    162                 BrowserSettings.PREF_DEFAULT_TEXT_ENCODING)) {
    163             pref.setSummary((String) objValue);
    164             return true;
    165         } else if (pref.getKey().equals(BrowserSettings.PREF_CLEAR_HISTORY)
    166                 && ((Boolean) objValue).booleanValue() == true) {
    167             // Need to tell the browser to remove the parent/child relationship
    168             // between tabs
    169             setResult(RESULT_OK, (new Intent()).putExtra(Intent.EXTRA_TEXT,
    170                     pref.getKey()));
    171             return true;
    172         }
    173 
    174         return false;
    175     }
    176 
    177     private CharSequence getVisualTextSizeName(String enumName) {
    178         CharSequence[] visualNames = getResources().getTextArray(
    179                 R.array.pref_text_size_choices);
    180         CharSequence[] enumNames = getResources().getTextArray(
    181                 R.array.pref_text_size_values);
    182 
    183         // Sanity check
    184         if (visualNames.length != enumNames.length) {
    185             return "";
    186         }
    187 
    188         for (int i = 0; i < enumNames.length; i++) {
    189             if (enumNames[i].equals(enumName)) {
    190                 return visualNames[i];
    191             }
    192         }
    193 
    194         return "";
    195     }
    196 
    197     private CharSequence getVisualDefaultZoomName(String enumName) {
    198         CharSequence[] visualNames = getResources().getTextArray(
    199                 R.array.pref_default_zoom_choices);
    200         CharSequence[] enumNames = getResources().getTextArray(
    201                 R.array.pref_default_zoom_values);
    202 
    203         // Sanity check
    204         if (visualNames.length != enumNames.length) {
    205             return "";
    206         }
    207 
    208         for (int i = 0; i < enumNames.length; i++) {
    209             if (enumNames[i].equals(enumName)) {
    210                 return visualNames[i];
    211             }
    212         }
    213 
    214         return "";
    215     }
    216 }
    217