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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 package org.chromium.chrome.browser.preferences.website; | |
6 | |
7 import android.os.Bundle; | |
8 import android.preference.Preference; | |
9 import android.preference.PreferenceFragment; | |
10 import android.support.v4.view.MenuItemCompat; | |
11 import android.support.v7.widget.SearchView; | |
12 import android.view.Menu; | |
13 import android.view.MenuInflater; | |
14 import android.view.MenuItem; | |
15 import android.view.inputmethod.EditorInfo; | |
16 import android.widget.ListView; | |
17 import android.widget.TextView; | |
18 | |
19 import org.chromium.chrome.R; | |
20 import org.chromium.chrome.browser.help.HelpAndFeedback; | |
21 import org.chromium.chrome.browser.profiles.Profile; | |
22 | |
23 import java.util.Collection; | |
24 import java.util.HashMap; | |
25 import java.util.LinkedList; | |
26 import java.util.List; | |
27 import java.util.Map; | |
28 | |
29 /** | |
30 * Shows a list of USB devices that the user has granted websites permission to access. | |
31 * | |
32 * When the user selects an item UsbDevicePreferences is launched to show which sites have access | |
33 * to the device. | |
34 */ | |
35 public class UsbPreferences | |
36 extends PreferenceFragment implements Preference.OnPreferenceClickListen er { | |
37 // The site settings category we are showing. | |
38 private SiteSettingsCategory mCategory; | |
39 // Multiple sites may have access to the same device. A canonical UsbInfo fo r each device is | |
40 // therefore arbitrarily chosen to represent it. |mPermissionsByObject| list s all of the | |
41 // individual permission grants for that device. |mSitesByObject| lists all of the sites with | |
42 // access to that device. | |
43 // | |
44 // UsbInfo's hashCode() and equals() methods compare only the device it repr esents, not the | |
45 // origin to which permission was granted. | |
46 private Map<UsbInfo, LinkedList<UsbInfo>> mPermissionsByObject = new HashMap <>(); | |
47 private Map<UsbInfo, LinkedList<Website>> mSitesByObject = new HashMap<>(); | |
48 // The view to show when the list is empty. | |
49 private TextView mEmptyView; | |
50 // The view for searching the list of items. | |
51 private SearchView mSearchView; | |
52 // If not blank, represents a substring to use to search for site names. | |
53 private String mSearch = ""; | |
54 | |
55 @Override | |
56 public void onActivityCreated(Bundle savedInstanceState) { | |
57 addPreferencesFromResource(R.xml.single_chooser_preferences); | |
58 ListView listView = (ListView) getView().findViewById(android.R.id.list) ; | |
59 mEmptyView = (TextView) getView().findViewById(android.R.id.empty); | |
60 listView.setEmptyView(mEmptyView); | |
61 listView.setDivider(null); | |
62 | |
63 String category = getArguments().getString(SingleCategoryPreferences.EXT RA_CATEGORY); | |
64 mCategory = SiteSettingsCategory.fromString(category); | |
65 String title = getArguments().getString(SingleCategoryPreferences.EXTRA_ TITLE); | |
66 getActivity().setTitle(title); | |
67 | |
68 setHasOptionsMenu(true); | |
69 | |
70 super.onActivityCreated(savedInstanceState); | |
71 } | |
72 | |
73 @Override | |
74 public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { | |
75 menu.clear(); | |
76 inflater.inflate(R.menu.website_preferences_menu, menu); | |
77 | |
78 MenuItem searchItem = menu.findItem(R.id.search); | |
79 mSearchView = (SearchView) MenuItemCompat.getActionView(searchItem); | |
80 mSearchView.setImeOptions(EditorInfo.IME_FLAG_NO_FULLSCREEN); | |
81 SearchView.OnQueryTextListener queryTextListener = new SearchView.OnQuer yTextListener() { | |
82 @Override | |
83 public boolean onQueryTextSubmit(String query) { | |
84 return true; | |
85 } | |
86 | |
87 @Override | |
88 public boolean onQueryTextChange(String query) { | |
89 // Make search case-insensitive. | |
90 query = query.toLowerCase(); | |
91 | |
92 if (query.equals(mSearch)) return true; | |
93 | |
94 mSearch = query; | |
95 getInfo(); | |
96 return true; | |
97 } | |
98 }; | |
99 mSearchView.setOnQueryTextListener(queryTextListener); | |
100 | |
101 MenuItem help = | |
102 menu.add(Menu.NONE, R.id.menu_id_targeted_help, Menu.NONE, R.str ing.menu_help); | |
103 help.setIcon(R.drawable.ic_help_and_feedback); | |
104 } | |
105 | |
106 @Override | |
107 public boolean onOptionsItemSelected(MenuItem item) { | |
108 if (item.getItemId() == R.id.menu_id_targeted_help) { | |
109 HelpAndFeedback.getInstance(getActivity()) | |
110 .show(getActivity(), getString(R.string.help_context_setting s), | |
111 Profile.getLastUsedProfile(), null); | |
112 return true; | |
113 } | |
114 return false; | |
115 } | |
116 | |
117 @Override | |
118 public void onResume() { | |
119 super.onResume(); | |
120 | |
121 getInfo(); | |
122 } | |
123 | |
124 private class ResultsPopulator implements WebsitePermissionsFetcher.WebsiteP ermissionsCallback { | |
125 @Override | |
126 public void onWebsitePermissionsAvailable(Collection<Website> sites) { | |
127 // This method may be called after the activity has been destroyed. | |
128 // In that case, bail out. | |
129 if (getActivity() == null) return; | |
130 | |
131 mPermissionsByObject.clear(); | |
132 mSitesByObject.clear(); | |
133 for (Website site : sites) { | |
134 for (UsbInfo info : site.getUsbInfo()) { | |
135 if (mSearch.isEmpty() || info.getName().toLowerCase().contai ns(mSearch)) { | |
136 LinkedList<UsbInfo> permissionSet = mPermissionsByObject .get(info); | |
137 if (permissionSet == null) { | |
138 permissionSet = new LinkedList<>(); | |
139 mPermissionsByObject.put(info, permissionSet); | |
140 } | |
141 permissionSet.add(info); | |
142 LinkedList<Website> sitesSet = mSitesByObject.get(info); | |
143 if (sitesSet == null) { | |
144 sitesSet = new LinkedList<>(); | |
145 mSitesByObject.put(info, sitesSet); | |
146 } | |
147 sitesSet.add(site); | |
148 } | |
149 } | |
150 } | |
151 | |
152 resetList(); | |
153 } | |
154 } | |
155 | |
156 /** | |
157 * Refreshes |mPermissionsByObject| and |mSitesByObject| with new data from native. | |
158 * | |
159 * resetList() is called to refresh the view when the data is ready. | |
160 */ | |
161 private void getInfo() { | |
162 WebsitePermissionsFetcher fetcher = new WebsitePermissionsFetcher(new Re sultsPopulator()); | |
163 fetcher.fetchPreferencesForCategory(mCategory); | |
164 } | |
165 | |
166 private void resetList() { | |
167 getPreferenceScreen().removeAll(); | |
168 addPreferencesFromResource(R.xml.single_chooser_preferences); | |
169 | |
170 if (mSitesByObject.isEmpty()) { | |
171 if (mEmptyView != null) { | |
172 mEmptyView.setText(R.string.no_saved_website_settings); | |
Theresa
2016/08/09 00:24:39
"You have no saved website settings." doesn't seem
| |
173 } | |
174 return; | |
175 } | |
176 | |
177 for (Map.Entry<UsbInfo, LinkedList<UsbInfo>> entry : mPermissionsByObjec t.entrySet()) { | |
178 Preference preference = new Preference(getActivity()); | |
179 preference.getExtras().putSerializable( | |
180 UsbDevicePreferences.EXTRA_USB_INFOS, entry.getValue()); | |
181 preference.setIcon(R.drawable.settings_usb); | |
182 preference.setOnPreferenceClickListener(this); | |
183 preference.setTitle(entry.getKey().getName()); | |
184 getPreferenceScreen().addPreference(preference); | |
185 } | |
186 } | |
187 | |
188 @Override | |
189 public boolean onPreferenceClick(Preference preference) { | |
190 Bundle extras = preference.getExtras(); | |
191 @SuppressWarnings("unchecked") | |
192 List<UsbInfo> info = | |
193 (List<UsbInfo>) extras.getSerializable(UsbDevicePreferences.EXTR A_USB_INFOS); | |
194 extras.putString( | |
195 SingleCategoryPreferences.EXTRA_TITLE, getActivity().getTitle(). toString()); | |
196 extras.putInt(UsbDevicePreferences.EXTRA_CATEGORY, mCategory.toContentSe ttingsType()); | |
197 extras.putSerializable( | |
198 UsbDevicePreferences.EXTRA_SITES, mSitesByObject.get(info.get(0) )); | |
199 preference.setFragment( | |
200 "org.chromium.chrome.browser.preferences.website.UsbDevicePrefer ences"); | |
201 return false; | |
202 } | |
203 } | |
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