The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame^] | 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.internal.app; |
| 18 | |
| 19 | import com.android.internal.R; |
| 20 | import android.content.ComponentName; |
| 21 | import android.content.Context; |
| 22 | import android.content.DialogInterface; |
| 23 | import android.content.Intent; |
| 24 | import android.content.IntentFilter; |
| 25 | import android.content.pm.ActivityInfo; |
| 26 | import android.content.pm.PackageManager; |
| 27 | import android.content.pm.ResolveInfo; |
| 28 | import android.net.Uri; |
| 29 | import android.os.Bundle; |
| 30 | import android.os.PatternMatcher; |
| 31 | import android.util.Config; |
| 32 | import android.util.Log; |
| 33 | import android.view.View; |
| 34 | import android.view.ViewGroup; |
| 35 | import android.view.LayoutInflater; |
| 36 | import android.widget.BaseAdapter; |
| 37 | import android.widget.CheckBox; |
| 38 | import android.widget.CompoundButton; |
| 39 | import android.widget.ImageView; |
| 40 | import android.widget.TextView; |
| 41 | import java.util.ArrayList; |
| 42 | import java.util.Collections; |
| 43 | import java.util.HashSet; |
| 44 | import java.util.Iterator; |
| 45 | import java.util.List; |
| 46 | import java.util.Set; |
| 47 | |
| 48 | /** |
| 49 | * This activity is displayed when the system attempts to start an Intent for |
| 50 | * which there is more than one matching activity, allowing the user to decide |
| 51 | * which to go to. It is not normally used directly by application developers. |
| 52 | */ |
| 53 | public class ResolverActivity extends AlertActivity implements |
| 54 | DialogInterface.OnClickListener, CheckBox.OnCheckedChangeListener { |
| 55 | private ResolveListAdapter mAdapter; |
| 56 | private CheckBox mAlwaysCheck; |
| 57 | private TextView mClearDefaultHint; |
| 58 | private PackageManager mPm; |
| 59 | |
| 60 | @Override |
| 61 | protected void onCreate(Bundle savedInstanceState) { |
| 62 | onCreate(savedInstanceState, new Intent(getIntent()), |
| 63 | getResources().getText(com.android.internal.R.string.whichApplication), |
| 64 | true); |
| 65 | } |
| 66 | |
| 67 | protected void onCreate(Bundle savedInstanceState, Intent intent, |
| 68 | CharSequence title, boolean alwaysUseOption) { |
| 69 | super.onCreate(savedInstanceState); |
| 70 | mPm = getPackageManager(); |
| 71 | intent.setComponent(null); |
| 72 | |
| 73 | AlertController.AlertParams ap = mAlertParams; |
| 74 | |
| 75 | ap.mTitle = title; |
| 76 | ap.mOnClickListener = this; |
| 77 | |
| 78 | if (alwaysUseOption) { |
| 79 | LayoutInflater inflater = (LayoutInflater) getSystemService( |
| 80 | Context.LAYOUT_INFLATER_SERVICE); |
| 81 | ap.mView = inflater.inflate(R.layout.always_use_checkbox, null); |
| 82 | mAlwaysCheck = (CheckBox)ap.mView.findViewById(com.android.internal.R.id.alwaysUse); |
| 83 | mAlwaysCheck.setText(R.string.alwaysUse); |
| 84 | mAlwaysCheck.setOnCheckedChangeListener(this); |
| 85 | mClearDefaultHint = (TextView)ap.mView.findViewById( |
| 86 | com.android.internal.R.id.clearDefaultHint); |
| 87 | mClearDefaultHint.setVisibility(View.GONE); |
| 88 | } |
| 89 | mAdapter = new ResolveListAdapter(this, intent); |
| 90 | if (mAdapter.getCount() > 1) { |
| 91 | ap.mAdapter = mAdapter; |
| 92 | } else if (mAdapter.getCount() == 1) { |
| 93 | startActivity(mAdapter.intentForPosition(0)); |
| 94 | finish(); |
| 95 | return; |
| 96 | } else { |
| 97 | ap.mMessage = getResources().getText(com.android.internal.R.string.noApplications); |
| 98 | } |
| 99 | |
| 100 | setupAlert(); |
| 101 | } |
| 102 | |
| 103 | public void onClick(DialogInterface dialog, int which) { |
| 104 | ResolveInfo ri = mAdapter.resolveInfoForPosition(which); |
| 105 | Intent intent = mAdapter.intentForPosition(which); |
| 106 | |
| 107 | if ((mAlwaysCheck != null) && mAlwaysCheck.isChecked()) { |
| 108 | // Build a reasonable intent filter, based on what matched. |
| 109 | IntentFilter filter = new IntentFilter(); |
| 110 | |
| 111 | if (intent.getAction() != null) { |
| 112 | filter.addAction(intent.getAction()); |
| 113 | } |
| 114 | Set<String> categories = intent.getCategories(); |
| 115 | if (categories != null) { |
| 116 | for (String cat : categories) { |
| 117 | filter.addCategory(cat); |
| 118 | } |
| 119 | } |
| 120 | filter.addCategory(Intent.CATEGORY_DEFAULT); |
| 121 | |
| 122 | int cat = ri.match&IntentFilter.MATCH_CATEGORY_MASK; |
| 123 | Uri data = intent.getData(); |
| 124 | if (cat == IntentFilter.MATCH_CATEGORY_TYPE) { |
| 125 | String mimeType = intent.resolveType(this); |
| 126 | if (mimeType != null) { |
| 127 | try { |
| 128 | filter.addDataType(mimeType); |
| 129 | } catch (IntentFilter.MalformedMimeTypeException e) { |
| 130 | Log.w("ResolverActivity", e); |
| 131 | filter = null; |
| 132 | } |
| 133 | } |
| 134 | } else if (data != null && data.getScheme() != null) { |
| 135 | filter.addDataScheme(data.getScheme()); |
| 136 | |
| 137 | // Look through the resolved filter to determine which part |
| 138 | // of it matched the original Intent. |
| 139 | Iterator<IntentFilter.AuthorityEntry> aIt = ri.filter.authoritiesIterator(); |
| 140 | if (aIt != null) { |
| 141 | while (aIt.hasNext()) { |
| 142 | IntentFilter.AuthorityEntry a = aIt.next(); |
| 143 | if (a.match(data) >= 0) { |
| 144 | int port = a.getPort(); |
| 145 | filter.addDataAuthority(a.getHost(), |
| 146 | port >= 0 ? Integer.toString(port) : null); |
| 147 | break; |
| 148 | } |
| 149 | } |
| 150 | } |
| 151 | Iterator<PatternMatcher> pIt = ri.filter.pathsIterator(); |
| 152 | if (pIt != null) { |
| 153 | String path = data.getPath(); |
| 154 | while (path != null && pIt.hasNext()) { |
| 155 | PatternMatcher p = pIt.next(); |
| 156 | if (p.match(path)) { |
| 157 | filter.addDataPath(p.getPath(), p.getType()); |
| 158 | break; |
| 159 | } |
| 160 | } |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | if (filter != null) { |
| 165 | final int N = mAdapter.mList.size(); |
| 166 | ComponentName[] set = new ComponentName[N]; |
| 167 | int bestMatch = 0; |
| 168 | for (int i=0; i<N; i++) { |
| 169 | ResolveInfo r = mAdapter.mList.get(i).ri; |
| 170 | set[i] = new ComponentName(r.activityInfo.packageName, |
| 171 | r.activityInfo.name); |
| 172 | if (r.match > bestMatch) bestMatch = r.match; |
| 173 | } |
| 174 | getPackageManager().addPreferredActivity(filter, bestMatch, set, |
| 175 | intent.getComponent()); |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | if (intent != null) { |
| 180 | startActivity(intent); |
| 181 | } |
| 182 | finish(); |
| 183 | } |
| 184 | |
| 185 | private final class DisplayResolveInfo { |
| 186 | ResolveInfo ri; |
| 187 | CharSequence displayLabel; |
| 188 | CharSequence extendedInfo; |
| 189 | |
| 190 | DisplayResolveInfo(ResolveInfo pri, CharSequence pLabel, CharSequence pInfo) { |
| 191 | ri = pri; |
| 192 | displayLabel = pLabel; |
| 193 | extendedInfo = pInfo; |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | private final class ResolveListAdapter extends BaseAdapter { |
| 198 | private final Intent mIntent; |
| 199 | private final LayoutInflater mInflater; |
| 200 | |
| 201 | private List<DisplayResolveInfo> mList; |
| 202 | |
| 203 | public ResolveListAdapter(Context context, Intent intent) { |
| 204 | mIntent = new Intent(intent); |
| 205 | mIntent.setComponent(null); |
| 206 | mInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); |
| 207 | |
| 208 | List<ResolveInfo> rList = mPm.queryIntentActivities( |
| 209 | intent, PackageManager.MATCH_DEFAULT_ONLY |
| 210 | | (mAlwaysCheck != null ? PackageManager.GET_RESOLVED_FILTER : 0)); |
| 211 | int N; |
| 212 | if ((rList != null) && ((N = rList.size()) > 0)) { |
| 213 | // Only display the first matches that are either of equal |
| 214 | // priority or have asked to be default options. |
| 215 | ResolveInfo r0 = rList.get(0); |
| 216 | for (int i=1; i<N; i++) { |
| 217 | ResolveInfo ri = rList.get(i); |
| 218 | if (Config.LOGV) Log.v( |
| 219 | "ResolveListActivity", |
| 220 | r0.activityInfo.name + "=" + |
| 221 | r0.priority + "/" + r0.isDefault + " vs " + |
| 222 | ri.activityInfo.name + "=" + |
| 223 | ri.priority + "/" + ri.isDefault); |
| 224 | if (r0.priority != ri.priority || |
| 225 | r0.isDefault != ri.isDefault) { |
| 226 | while (i < N) { |
| 227 | rList.remove(i); |
| 228 | N--; |
| 229 | } |
| 230 | } |
| 231 | } |
| 232 | if (N > 1) { |
| 233 | ResolveInfo.DisplayNameComparator rComparator = |
| 234 | new ResolveInfo.DisplayNameComparator(mPm); |
| 235 | Collections.sort(rList, rComparator); |
| 236 | } |
| 237 | // Check for applications with same name and use application name or |
| 238 | // package name if necessary |
| 239 | mList = new ArrayList<DisplayResolveInfo>(); |
| 240 | r0 = rList.get(0); |
| 241 | int start = 0; |
| 242 | CharSequence r0Label = r0.loadLabel(mPm); |
| 243 | for (int i = 1; i < N; i++) { |
| 244 | if (r0Label == null) { |
| 245 | r0Label = r0.activityInfo.packageName; |
| 246 | } |
| 247 | ResolveInfo ri = rList.get(i); |
| 248 | CharSequence riLabel = ri.loadLabel(mPm); |
| 249 | if (riLabel == null) { |
| 250 | riLabel = ri.activityInfo.packageName; |
| 251 | } |
| 252 | if (riLabel.equals(r0Label)) { |
| 253 | continue; |
| 254 | } |
| 255 | processGroup(rList, start, (i-1), r0, r0Label); |
| 256 | r0 = ri; |
| 257 | r0Label = riLabel; |
| 258 | start = i; |
| 259 | } |
| 260 | // Process last group |
| 261 | processGroup(rList, start, (N-1), r0, r0Label); |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | private void processGroup(List<ResolveInfo> rList, int start, int end, ResolveInfo ro, |
| 266 | CharSequence roLabel) { |
| 267 | // Process labels from start to i |
| 268 | int num = end - start+1; |
| 269 | if (num == 1) { |
| 270 | // No duplicate labels. Use label for entry at start |
| 271 | mList.add(new DisplayResolveInfo(ro, roLabel, null)); |
| 272 | } else { |
| 273 | boolean usePkg = false; |
| 274 | CharSequence startApp = ro.activityInfo.applicationInfo.loadLabel(mPm); |
| 275 | if (startApp == null) { |
| 276 | usePkg = true; |
| 277 | } |
| 278 | if (!usePkg) { |
| 279 | // Use HashSet to track duplicates |
| 280 | HashSet<CharSequence> duplicates = |
| 281 | new HashSet<CharSequence>(); |
| 282 | duplicates.add(startApp); |
| 283 | for (int j = start+1; j <= end ; j++) { |
| 284 | ResolveInfo jRi = rList.get(j); |
| 285 | CharSequence jApp = jRi.activityInfo.applicationInfo.loadLabel(mPm); |
| 286 | if ( (jApp == null) || (duplicates.contains(jApp))) { |
| 287 | usePkg = true; |
| 288 | break; |
| 289 | } else { |
| 290 | duplicates.add(jApp); |
| 291 | } |
| 292 | } |
| 293 | // Clear HashSet for later use |
| 294 | duplicates.clear(); |
| 295 | } |
| 296 | for (int k = start; k <= end; k++) { |
| 297 | ResolveInfo add = rList.get(k); |
| 298 | if (usePkg) { |
| 299 | // Use application name for all entries from start to end-1 |
| 300 | mList.add(new DisplayResolveInfo(add, roLabel, |
| 301 | add.activityInfo.packageName)); |
| 302 | } else { |
| 303 | // Use package name for all entries from start to end-1 |
| 304 | mList.add(new DisplayResolveInfo(add, roLabel, |
| 305 | add.activityInfo.applicationInfo.loadLabel(mPm))); |
| 306 | } |
| 307 | } |
| 308 | } |
| 309 | } |
| 310 | |
| 311 | public ResolveInfo resolveInfoForPosition(int position) { |
| 312 | if (mList == null) { |
| 313 | return null; |
| 314 | } |
| 315 | |
| 316 | return mList.get(position).ri; |
| 317 | } |
| 318 | |
| 319 | public Intent intentForPosition(int position) { |
| 320 | if (mList == null) { |
| 321 | return null; |
| 322 | } |
| 323 | |
| 324 | Intent intent = new Intent(mIntent); |
| 325 | intent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT |
| 326 | |Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP); |
| 327 | ActivityInfo ai = mList.get(position).ri.activityInfo; |
| 328 | intent.setComponent(new ComponentName( |
| 329 | ai.applicationInfo.packageName, ai.name)); |
| 330 | return intent; |
| 331 | } |
| 332 | |
| 333 | public int getCount() { |
| 334 | return mList != null ? mList.size() : 0; |
| 335 | } |
| 336 | |
| 337 | public Object getItem(int position) { |
| 338 | return position; |
| 339 | } |
| 340 | |
| 341 | public long getItemId(int position) { |
| 342 | return position; |
| 343 | } |
| 344 | |
| 345 | public View getView(int position, View convertView, ViewGroup parent) { |
| 346 | View view; |
| 347 | if (convertView == null) { |
| 348 | view = mInflater.inflate( |
| 349 | com.android.internal.R.layout.resolve_list_item, parent, false); |
| 350 | } else { |
| 351 | view = convertView; |
| 352 | } |
| 353 | bindView(view, mList.get(position)); |
| 354 | return view; |
| 355 | } |
| 356 | |
| 357 | private final void bindView(View view, DisplayResolveInfo info) { |
| 358 | TextView text = (TextView)view.findViewById(com.android.internal.R.id.text1); |
| 359 | TextView text2 = (TextView)view.findViewById(com.android.internal.R.id.text2); |
| 360 | ImageView icon = (ImageView)view.findViewById(R.id.icon); |
| 361 | text.setText(info.displayLabel); |
| 362 | if (info.extendedInfo != null) { |
| 363 | text2.setVisibility(View.VISIBLE); |
| 364 | text2.setText(info.extendedInfo); |
| 365 | } else { |
| 366 | text2.setVisibility(View.GONE); |
| 367 | } |
| 368 | icon.setImageDrawable(info.ri.loadIcon(mPm)); |
| 369 | } |
| 370 | } |
| 371 | |
| 372 | public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { |
| 373 | if (mClearDefaultHint == null) return; |
| 374 | |
| 375 | if(isChecked) { |
| 376 | mClearDefaultHint.setVisibility(View.VISIBLE); |
| 377 | } else { |
| 378 | mClearDefaultHint.setVisibility(View.GONE); |
| 379 | } |
| 380 | } |
| 381 | } |
| 382 | |