| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.app; |
| |
| |
| import static android.app.SuggestionsAdapter.getColumnString; |
| |
| import java.util.WeakHashMap; |
| import java.util.concurrent.atomic.AtomicLong; |
| |
| import android.content.ActivityNotFoundException; |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.ActivityInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ResolveInfo; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.content.res.Configuration; |
| import android.content.res.Resources; |
| import android.database.Cursor; |
| import android.graphics.drawable.Drawable; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.os.SystemClock; |
| import android.provider.Browser; |
| import android.speech.RecognizerIntent; |
| import android.text.Editable; |
| import android.text.InputType; |
| import android.text.TextUtils; |
| import android.text.TextWatcher; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.view.Gravity; |
| import android.view.KeyEvent; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.view.ViewConfiguration; |
| import android.view.ViewGroup; |
| import android.view.Window; |
| import android.view.WindowManager; |
| import android.view.inputmethod.EditorInfo; |
| import android.view.inputmethod.InputMethodManager; |
| import android.widget.AdapterView; |
| import android.widget.AutoCompleteTextView; |
| import android.widget.Button; |
| import android.widget.ImageButton; |
| import android.widget.ImageView; |
| import android.widget.LinearLayout; |
| import android.widget.ListView; |
| import android.widget.TextView; |
| import android.widget.AdapterView.OnItemClickListener; |
| import android.widget.AdapterView.OnItemSelectedListener; |
| |
| /** |
| * Search dialog. This is controlled by the |
| * SearchManager and runs in the current foreground process. |
| * |
| * @hide |
| */ |
| public class SearchDialog extends Dialog implements OnItemClickListener, OnItemSelectedListener { |
| |
| // Debugging support |
| private static final boolean DBG = false; |
| private static final String LOG_TAG = "SearchDialog"; |
| private static final boolean DBG_LOG_TIMING = false; |
| |
| private static final String INSTANCE_KEY_COMPONENT = "comp"; |
| private static final String INSTANCE_KEY_APPDATA = "data"; |
| private static final String INSTANCE_KEY_STORED_APPDATA = "sData"; |
| private static final String INSTANCE_KEY_USER_QUERY = "uQry"; |
| |
| // The string used for privateImeOptions to identify to the IME that it should not show |
| // a microphone button since one already exists in the search dialog. |
| private static final String IME_OPTION_NO_MICROPHONE = "nm"; |
| |
| private static final int SEARCH_PLATE_LEFT_PADDING_GLOBAL = 12; |
| private static final int SEARCH_PLATE_LEFT_PADDING_NON_GLOBAL = 7; |
| |
| // views & widgets |
| private TextView mBadgeLabel; |
| private ImageView mAppIcon; |
| private SearchAutoComplete mSearchAutoComplete; |
| private Button mGoButton; |
| private ImageButton mVoiceButton; |
| private View mSearchPlate; |
| private Drawable mWorkingSpinner; |
| |
| // interaction with searchable application |
| private SearchableInfo mSearchable; |
| private ComponentName mLaunchComponent; |
| private Bundle mAppSearchData; |
| private Context mActivityContext; |
| private SearchManager mSearchManager; |
| |
| // For voice searching |
| private final Intent mVoiceWebSearchIntent; |
| private final Intent mVoiceAppSearchIntent; |
| |
| // support for AutoCompleteTextView suggestions display |
| private SuggestionsAdapter mSuggestionsAdapter; |
| |
| // Whether to rewrite queries when selecting suggestions |
| private static final boolean REWRITE_QUERIES = true; |
| |
| // The query entered by the user. This is not changed when selecting a suggestion |
| // that modifies the contents of the text field. But if the user then edits |
| // the suggestion, the resulting string is saved. |
| private String mUserQuery; |
| // The query passed in when opening the SearchDialog. Used in the browser |
| // case to determine whether the user has edited the query. |
| private String mInitialQuery; |
| |
| // A weak map of drawables we've gotten from other packages, so we don't load them |
| // more than once. |
| private final WeakHashMap<String, Drawable.ConstantState> mOutsideDrawablesCache = |
| new WeakHashMap<String, Drawable.ConstantState>(); |
| |
| // Last known IME options value for the search edit text. |
| private int mSearchAutoCompleteImeOptions; |
| |
| private BroadcastReceiver mConfChangeListener = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (intent.getAction().equals(Intent.ACTION_CONFIGURATION_CHANGED)) { |
| onConfigurationChanged(); |
| } |
| } |
| }; |
| |
| /** |
| * Constructor - fires it up and makes it look like the search UI. |
| * |
| * @param context Application Context we can use for system acess |
| */ |
| public SearchDialog(Context context, SearchManager searchManager) { |
| super(context, com.android.internal.R.style.Theme_SearchBar); |
| |
| // Save voice intent for later queries/launching |
| mVoiceWebSearchIntent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH); |
| mVoiceWebSearchIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| mVoiceWebSearchIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, |
| RecognizerIntent.LANGUAGE_MODEL_WEB_SEARCH); |
| |
| mVoiceAppSearchIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH); |
| mVoiceAppSearchIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| mSearchManager = searchManager; |
| } |
| |
| /** |
| * Create the search dialog and any resources that are used for the |
| * entire lifetime of the dialog. |
| */ |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| Window theWindow = getWindow(); |
| WindowManager.LayoutParams lp = theWindow.getAttributes(); |
| lp.width = ViewGroup.LayoutParams.MATCH_PARENT; |
| // taking up the whole window (even when transparent) is less than ideal, |
| // but necessary to show the popup window until the window manager supports |
| // having windows anchored by their parent but not clipped by them. |
| lp.height = ViewGroup.LayoutParams.MATCH_PARENT; |
| lp.gravity = Gravity.TOP | Gravity.FILL_HORIZONTAL; |
| lp.softInputMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; |
| theWindow.setAttributes(lp); |
| |
| // Touching outside of the search dialog will dismiss it |
| setCanceledOnTouchOutside(true); |
| } |
| |
| /** |
| * We recreate the dialog view each time it becomes visible so as to limit |
| * the scope of any problems with the contained resources. |
| */ |
| private void createContentView() { |
| setContentView(com.android.internal.R.layout.search_bar); |
| |
| // get the view elements for local access |
| SearchBar searchBar = (SearchBar) findViewById(com.android.internal.R.id.search_bar); |
| searchBar.setSearchDialog(this); |
| |
| mBadgeLabel = (TextView) findViewById(com.android.internal.R.id.search_badge); |
| mSearchAutoComplete = (SearchAutoComplete) |
| findViewById(com.android.internal.R.id.search_src_text); |
| mAppIcon = (ImageView) findViewById(com.android.internal.R.id.search_app_icon); |
| mGoButton = (Button) findViewById(com.android.internal.R.id.search_go_btn); |
| mVoiceButton = (ImageButton) findViewById(com.android.internal.R.id.search_voice_btn); |
| mSearchPlate = findViewById(com.android.internal.R.id.search_plate); |
| mWorkingSpinner = getContext().getResources(). |
| getDrawable(com.android.internal.R.drawable.search_spinner); |
| mSearchAutoComplete.setCompoundDrawablesWithIntrinsicBounds( |
| null, null, mWorkingSpinner, null); |
| setWorking(false); |
| |
| // attach listeners |
| mSearchAutoComplete.addTextChangedListener(mTextWatcher); |
| mSearchAutoComplete.setOnKeyListener(mTextKeyListener); |
| mSearchAutoComplete.setOnItemClickListener(this); |
| mSearchAutoComplete.setOnItemSelectedListener(this); |
| mGoButton.setOnClickListener(mGoButtonClickListener); |
| mGoButton.setOnKeyListener(mButtonsKeyListener); |
| mVoiceButton.setOnClickListener(mVoiceButtonClickListener); |
| mVoiceButton.setOnKeyListener(mButtonsKeyListener); |
| |
| // pre-hide all the extraneous elements |
| mBadgeLabel.setVisibility(View.GONE); |
| |
| // Additional adjustments to make Dialog work for Search |
| mSearchAutoCompleteImeOptions = mSearchAutoComplete.getImeOptions(); |
| } |
| |
| /** |
| * Set up the search dialog |
| * |
| * @return true if search dialog launched, false if not |
| */ |
| public boolean show(String initialQuery, boolean selectInitialQuery, |
| ComponentName componentName, Bundle appSearchData) { |
| boolean success = doShow(initialQuery, selectInitialQuery, componentName, appSearchData); |
| if (success) { |
| // Display the drop down as soon as possible instead of waiting for the rest of the |
| // pending UI stuff to get done, so that things appear faster to the user. |
| mSearchAutoComplete.showDropDownAfterLayout(); |
| } |
| return success; |
| } |
| |
| /** |
| * Does the rest of the work required to show the search dialog. Called by |
| * {@link #show(String, boolean, ComponentName, Bundle)} and |
| * |
| * @return true if search dialog showed, false if not |
| */ |
| private boolean doShow(String initialQuery, boolean selectInitialQuery, |
| ComponentName componentName, Bundle appSearchData) { |
| // set up the searchable and show the dialog |
| if (!show(componentName, appSearchData)) { |
| return false; |
| } |
| |
| mInitialQuery = initialQuery == null ? "" : initialQuery; |
| // finally, load the user's initial text (which may trigger suggestions) |
| setUserQuery(initialQuery); |
| if (selectInitialQuery) { |
| mSearchAutoComplete.selectAll(); |
| } |
| |
| return true; |
| } |
| |
| /** |
| * Sets up the search dialog and shows it. |
| * |
| * @return <code>true</code> if search dialog launched |
| */ |
| private boolean show(ComponentName componentName, Bundle appSearchData) { |
| |
| if (DBG) { |
| Log.d(LOG_TAG, "show(" + componentName + ", " |
| + appSearchData + ")"); |
| } |
| |
| SearchManager searchManager = (SearchManager) |
| mContext.getSystemService(Context.SEARCH_SERVICE); |
| // Try to get the searchable info for the provided component. |
| mSearchable = searchManager.getSearchableInfo(componentName); |
| |
| if (mSearchable == null) { |
| return false; |
| } |
| |
| mLaunchComponent = componentName; |
| mAppSearchData = appSearchData; |
| mActivityContext = mSearchable.getActivityContext(getContext()); |
| |
| // show the dialog. this will call onStart(). |
| if (!isShowing()) { |
| // Recreate the search bar view every time the dialog is shown, to get rid |
| // of any bad state in the AutoCompleteTextView etc |
| createContentView(); |
| |
| show(); |
| } |
| updateUI(); |
| |
| return true; |
| } |
| |
| @Override |
| public void onStart() { |
| super.onStart(); |
| |
| // Register a listener for configuration change events. |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(Intent.ACTION_CONFIGURATION_CHANGED); |
| getContext().registerReceiver(mConfChangeListener, filter); |
| } |
| |
| /** |
| * The search dialog is being dismissed, so handle all of the local shutdown operations. |
| * |
| * This function is designed to be idempotent so that dismiss() can be safely called at any time |
| * (even if already closed) and more likely to really dump any memory. No leaks! |
| */ |
| @Override |
| public void onStop() { |
| super.onStop(); |
| |
| getContext().unregisterReceiver(mConfChangeListener); |
| |
| closeSuggestionsAdapter(); |
| |
| // dump extra memory we're hanging on to |
| mLaunchComponent = null; |
| mAppSearchData = null; |
| mSearchable = null; |
| mUserQuery = null; |
| mInitialQuery = null; |
| } |
| |
| /** |
| * Sets the search dialog to the 'working' state, which shows a working spinner in the |
| * right hand size of the text field. |
| * |
| * @param working true to show spinner, false to hide spinner |
| */ |
| public void setWorking(boolean working) { |
| mWorkingSpinner.setAlpha(working ? 255 : 0); |
| mWorkingSpinner.setVisible(working, false); |
| mWorkingSpinner.invalidateSelf(); |
| } |
| |
| /** |
| * Closes and gets rid of the suggestions adapter. |
| */ |
| private void closeSuggestionsAdapter() { |
| // remove the adapter from the autocomplete first, to avoid any updates |
| // when we drop the cursor |
| mSearchAutoComplete.setAdapter((SuggestionsAdapter)null); |
| // close any leftover cursor |
| if (mSuggestionsAdapter != null) { |
| mSuggestionsAdapter.close(); |
| } |
| mSuggestionsAdapter = null; |
| } |
| |
| /** |
| * Save the minimal set of data necessary to recreate the search |
| * |
| * @return A bundle with the state of the dialog, or {@code null} if the search |
| * dialog is not showing. |
| */ |
| @Override |
| public Bundle onSaveInstanceState() { |
| if (!isShowing()) return null; |
| |
| Bundle bundle = new Bundle(); |
| |
| // setup info so I can recreate this particular search |
| bundle.putParcelable(INSTANCE_KEY_COMPONENT, mLaunchComponent); |
| bundle.putBundle(INSTANCE_KEY_APPDATA, mAppSearchData); |
| bundle.putString(INSTANCE_KEY_USER_QUERY, mUserQuery); |
| |
| return bundle; |
| } |
| |
| /** |
| * Restore the state of the dialog from a previously saved bundle. |
| * |
| * TODO: go through this and make sure that it saves everything that is saved |
| * |
| * @param savedInstanceState The state of the dialog previously saved by |
| * {@link #onSaveInstanceState()}. |
| */ |
| @Override |
| public void onRestoreInstanceState(Bundle savedInstanceState) { |
| if (savedInstanceState == null) return; |
| |
| ComponentName launchComponent = savedInstanceState.getParcelable(INSTANCE_KEY_COMPONENT); |
| Bundle appSearchData = savedInstanceState.getBundle(INSTANCE_KEY_APPDATA); |
| String userQuery = savedInstanceState.getString(INSTANCE_KEY_USER_QUERY); |
| |
| // show the dialog. |
| if (!doShow(userQuery, false, launchComponent, appSearchData)) { |
| // for some reason, we couldn't re-instantiate |
| return; |
| } |
| } |
| |
| /** |
| * Called after resources have changed, e.g. after screen rotation or locale change. |
| */ |
| public void onConfigurationChanged() { |
| if (mSearchable != null && isShowing()) { |
| // Redraw (resources may have changed) |
| updateSearchButton(); |
| updateSearchAppIcon(); |
| updateSearchBadge(); |
| updateQueryHint(); |
| if (isLandscapeMode(getContext())) { |
| mSearchAutoComplete.ensureImeVisible(true); |
| } |
| mSearchAutoComplete.showDropDownAfterLayout(); |
| } |
| } |
| |
| static boolean isLandscapeMode(Context context) { |
| return context.getResources().getConfiguration().orientation |
| == Configuration.ORIENTATION_LANDSCAPE; |
| } |
| |
| /** |
| * Update the UI according to the info in the current value of {@link #mSearchable}. |
| */ |
| private void updateUI() { |
| if (mSearchable != null) { |
| mDecor.setVisibility(View.VISIBLE); |
| updateSearchAutoComplete(); |
| updateSearchButton(); |
| updateSearchAppIcon(); |
| updateSearchBadge(); |
| updateQueryHint(); |
| updateVoiceButton(TextUtils.isEmpty(mUserQuery)); |
| |
| // In order to properly configure the input method (if one is being used), we |
| // need to let it know if we'll be providing suggestions. Although it would be |
| // difficult/expensive to know if every last detail has been configured properly, we |
| // can at least see if a suggestions provider has been configured, and use that |
| // as our trigger. |
| int inputType = mSearchable.getInputType(); |
| // We only touch this if the input type is set up for text (which it almost certainly |
| // should be, in the case of search!) |
| if ((inputType & InputType.TYPE_MASK_CLASS) == InputType.TYPE_CLASS_TEXT) { |
| // The existence of a suggestions authority is the proxy for "suggestions |
| // are available here" |
| inputType &= ~InputType.TYPE_TEXT_FLAG_AUTO_COMPLETE; |
| if (mSearchable.getSuggestAuthority() != null) { |
| inputType |= InputType.TYPE_TEXT_FLAG_AUTO_COMPLETE; |
| } |
| } |
| mSearchAutoComplete.setInputType(inputType); |
| mSearchAutoCompleteImeOptions = mSearchable.getImeOptions(); |
| mSearchAutoComplete.setImeOptions(mSearchAutoCompleteImeOptions); |
| |
| // If the search dialog is going to show a voice search button, then don't let |
| // the soft keyboard display a microphone button if it would have otherwise. |
| if (mSearchable.getVoiceSearchEnabled()) { |
| mSearchAutoComplete.setPrivateImeOptions(IME_OPTION_NO_MICROPHONE); |
| } else { |
| mSearchAutoComplete.setPrivateImeOptions(null); |
| } |
| } |
| } |
| |
| /** |
| * Updates the auto-complete text view. |
| */ |
| private void updateSearchAutoComplete() { |
| // close any existing suggestions adapter |
| closeSuggestionsAdapter(); |
| |
| mSearchAutoComplete.setDropDownAnimationStyle(0); // no animation |
| mSearchAutoComplete.setThreshold(mSearchable.getSuggestThreshold()); |
| // we dismiss the entire dialog instead |
| mSearchAutoComplete.setDropDownDismissedOnCompletion(false); |
| |
| mSearchAutoComplete.setForceIgnoreOutsideTouch(true); |
| |
| // attach the suggestions adapter, if suggestions are available |
| // The existence of a suggestions authority is the proxy for "suggestions available here" |
| if (mSearchable.getSuggestAuthority() != null) { |
| mSuggestionsAdapter = new SuggestionsAdapter(getContext(), this, mSearchable, |
| mOutsideDrawablesCache); |
| mSearchAutoComplete.setAdapter(mSuggestionsAdapter); |
| } |
| } |
| |
| private void updateSearchButton() { |
| String textLabel = null; |
| Drawable iconLabel = null; |
| int textId = mSearchable.getSearchButtonText(); |
| if (isBrowserSearch()){ |
| iconLabel = getContext().getResources() |
| .getDrawable(com.android.internal.R.drawable.ic_btn_search_go); |
| } else if (textId != 0) { |
| textLabel = mActivityContext.getResources().getString(textId); |
| } else { |
| iconLabel = getContext().getResources(). |
| getDrawable(com.android.internal.R.drawable.ic_btn_search); |
| } |
| mGoButton.setText(textLabel); |
| mGoButton.setCompoundDrawablesWithIntrinsicBounds(iconLabel, null, null, null); |
| } |
| |
| private void updateSearchAppIcon() { |
| if (isBrowserSearch()) { |
| mAppIcon.setImageResource(0); |
| mAppIcon.setVisibility(View.GONE); |
| mSearchPlate.setPadding(SEARCH_PLATE_LEFT_PADDING_GLOBAL, |
| mSearchPlate.getPaddingTop(), |
| mSearchPlate.getPaddingRight(), |
| mSearchPlate.getPaddingBottom()); |
| } else { |
| PackageManager pm = getContext().getPackageManager(); |
| Drawable icon; |
| try { |
| ActivityInfo info = pm.getActivityInfo(mLaunchComponent, 0); |
| icon = pm.getApplicationIcon(info.applicationInfo); |
| if (DBG) Log.d(LOG_TAG, "Using app-specific icon"); |
| } catch (NameNotFoundException e) { |
| icon = pm.getDefaultActivityIcon(); |
| Log.w(LOG_TAG, mLaunchComponent + " not found, using generic app icon"); |
| } |
| mAppIcon.setImageDrawable(icon); |
| mAppIcon.setVisibility(View.VISIBLE); |
| mSearchPlate.setPadding(SEARCH_PLATE_LEFT_PADDING_NON_GLOBAL, |
| mSearchPlate.getPaddingTop(), |
| mSearchPlate.getPaddingRight(), |
| mSearchPlate.getPaddingBottom()); |
| } |
| } |
| |
| /** |
| * Setup the search "Badge" if requested by mode flags. |
| */ |
| private void updateSearchBadge() { |
| // assume both hidden |
| int visibility = View.GONE; |
| Drawable icon = null; |
| CharSequence text = null; |
| |
| // optionally show one or the other. |
| if (mSearchable.useBadgeIcon()) { |
| icon = mActivityContext.getResources().getDrawable(mSearchable.getIconId()); |
| visibility = View.VISIBLE; |
| if (DBG) Log.d(LOG_TAG, "Using badge icon: " + mSearchable.getIconId()); |
| } else if (mSearchable.useBadgeLabel()) { |
| text = mActivityContext.getResources().getText(mSearchable.getLabelId()).toString(); |
| visibility = View.VISIBLE; |
| if (DBG) Log.d(LOG_TAG, "Using badge label: " + mSearchable.getLabelId()); |
| } |
| |
| mBadgeLabel.setCompoundDrawablesWithIntrinsicBounds(icon, null, null, null); |
| mBadgeLabel.setText(text); |
| mBadgeLabel.setVisibility(visibility); |
| } |
| |
| /** |
| * Update the hint in the query text field. |
| */ |
| private void updateQueryHint() { |
| if (isShowing()) { |
| String hint = null; |
| if (mSearchable != null) { |
| int hintId = mSearchable.getHintId(); |
| if (hintId != 0) { |
| hint = mActivityContext.getString(hintId); |
| } |
| } |
| mSearchAutoComplete.setHint(hint); |
| } |
| } |
| |
| /** |
| * Update the visibility of the voice button. There are actually two voice search modes, |
| * either of which will activate the button. |
| * @param empty whether the search query text field is empty. If it is, then the other |
| * criteria apply to make the voice button visible. Otherwise the voice button will not |
| * be visible - i.e., if the user has typed a query, remove the voice button. |
| */ |
| private void updateVoiceButton(boolean empty) { |
| int visibility = View.GONE; |
| if (mSearchable.getVoiceSearchEnabled() && empty) { |
| Intent testIntent = null; |
| if (mSearchable.getVoiceSearchLaunchWebSearch()) { |
| testIntent = mVoiceWebSearchIntent; |
| } else if (mSearchable.getVoiceSearchLaunchRecognizer()) { |
| testIntent = mVoiceAppSearchIntent; |
| } |
| if (testIntent != null) { |
| ResolveInfo ri = getContext().getPackageManager(). |
| resolveActivity(testIntent, PackageManager.MATCH_DEFAULT_ONLY); |
| if (ri != null) { |
| visibility = View.VISIBLE; |
| } |
| } |
| } |
| mVoiceButton.setVisibility(visibility); |
| } |
| |
| /** Called by SuggestionsAdapter when the cursor contents changed. */ |
| void onDataSetChanged() { |
| if (mSearchAutoComplete != null && mSuggestionsAdapter != null) { |
| mSearchAutoComplete.onFilterComplete(mSuggestionsAdapter.getCount()); |
| } |
| } |
| |
| /** |
| * Hack to determine whether this is the browser, so we can adjust the UI. |
| */ |
| private boolean isBrowserSearch() { |
| return mLaunchComponent.flattenToShortString().startsWith("com.android.browser/"); |
| } |
| |
| /* |
| * Listeners of various types |
| */ |
| |
| /** |
| * {@link Dialog#onTouchEvent(MotionEvent)} will cancel the dialog only when the |
| * touch is outside the window. But the window includes space for the drop-down, |
| * so we also cancel on taps outside the search bar when the drop-down is not showing. |
| */ |
| @Override |
| public boolean onTouchEvent(MotionEvent event) { |
| // cancel if the drop-down is not showing and the touch event was outside the search plate |
| if (!mSearchAutoComplete.isPopupShowing() && isOutOfBounds(mSearchPlate, event)) { |
| if (DBG) Log.d(LOG_TAG, "Pop-up not showing and outside of search plate."); |
| cancel(); |
| return true; |
| } |
| // Let Dialog handle events outside the window while the pop-up is showing. |
| return super.onTouchEvent(event); |
| } |
| |
| private boolean isOutOfBounds(View v, MotionEvent event) { |
| final int x = (int) event.getX(); |
| final int y = (int) event.getY(); |
| final int slop = ViewConfiguration.get(mContext).getScaledWindowTouchSlop(); |
| return (x < -slop) || (y < -slop) |
| || (x > (v.getWidth()+slop)) |
| || (y > (v.getHeight()+slop)); |
| } |
| |
| /** |
| * Dialog's OnKeyListener implements various search-specific functionality |
| * |
| * @param keyCode This is the keycode of the typed key, and is the same value as |
| * found in the KeyEvent parameter. |
| * @param event The complete event record for the typed key |
| * |
| * @return Return true if the event was handled here, or false if not. |
| */ |
| @Override |
| public boolean onKeyDown(int keyCode, KeyEvent event) { |
| if (DBG) Log.d(LOG_TAG, "onKeyDown(" + keyCode + "," + event + ")"); |
| if (mSearchable == null) { |
| return false; |
| } |
| |
| // if it's an action specified by the searchable activity, launch the |
| // entered query with the action key |
| SearchableInfo.ActionKeyInfo actionKey = mSearchable.findActionKey(keyCode); |
| if ((actionKey != null) && (actionKey.getQueryActionMsg() != null)) { |
| launchQuerySearch(keyCode, actionKey.getQueryActionMsg()); |
| return true; |
| } |
| |
| return super.onKeyDown(keyCode, event); |
| } |
| |
| /** |
| * Callback to watch the textedit field for empty/non-empty |
| */ |
| private TextWatcher mTextWatcher = new TextWatcher() { |
| |
| public void beforeTextChanged(CharSequence s, int start, int before, int after) { } |
| |
| public void onTextChanged(CharSequence s, int start, |
| int before, int after) { |
| if (DBG_LOG_TIMING) { |
| dbgLogTiming("onTextChanged()"); |
| } |
| if (mSearchable == null) { |
| return; |
| } |
| if (!mSearchAutoComplete.isPerformingCompletion()) { |
| // The user changed the query, remember it. |
| mUserQuery = s == null ? "" : s.toString(); |
| } |
| updateWidgetState(); |
| // Always want to show the microphone if the context is voice. |
| // Also show the microphone if this is a browser search and the |
| // query matches the initial query. |
| updateVoiceButton(mSearchAutoComplete.isEmpty() |
| || (isBrowserSearch() && mInitialQuery.equals(mUserQuery)) |
| || (mAppSearchData != null && mAppSearchData.getBoolean( |
| SearchManager.CONTEXT_IS_VOICE))); |
| } |
| |
| public void afterTextChanged(Editable s) { |
| if (mSearchable == null) { |
| return; |
| } |
| if (mSearchable.autoUrlDetect() && !mSearchAutoComplete.isPerformingCompletion()) { |
| // The user changed the query, check if it is a URL and if so change the search |
| // button in the soft keyboard to the 'Go' button. |
| int options = (mSearchAutoComplete.getImeOptions() & (~EditorInfo.IME_MASK_ACTION)) |
| | EditorInfo.IME_ACTION_GO; |
| if (options != mSearchAutoCompleteImeOptions) { |
| mSearchAutoCompleteImeOptions = options; |
| mSearchAutoComplete.setImeOptions(options); |
| // This call is required to update the soft keyboard UI with latest IME flags. |
| mSearchAutoComplete.setInputType(mSearchAutoComplete.getInputType()); |
| } |
| } |
| } |
| }; |
| |
| /** |
| * Enable/Disable the go button based on edit text state (any text?) |
| */ |
| private void updateWidgetState() { |
| // enable the button if we have one or more non-space characters |
| boolean enabled = !mSearchAutoComplete.isEmpty(); |
| if (isBrowserSearch()) { |
| // In the browser, we hide the search button when there is no text, |
| // or if the text matches the initial query. |
| if (enabled && !mInitialQuery.equals(mUserQuery)) { |
| mSearchAutoComplete.setBackgroundResource( |
| com.android.internal.R.drawable.textfield_search); |
| mGoButton.setVisibility(View.VISIBLE); |
| // Just to be sure |
| mGoButton.setEnabled(true); |
| mGoButton.setFocusable(true); |
| } else { |
| mSearchAutoComplete.setBackgroundResource( |
| com.android.internal.R.drawable.textfield_search_empty); |
| mGoButton.setVisibility(View.GONE); |
| } |
| } else { |
| // Elsewhere we just disable the button |
| mGoButton.setEnabled(enabled); |
| mGoButton.setFocusable(enabled); |
| } |
| } |
| |
| /** |
| * React to typing in the GO search button by refocusing to EditText. |
| * Continue typing the query. |
| */ |
| View.OnKeyListener mButtonsKeyListener = new View.OnKeyListener() { |
| public boolean onKey(View v, int keyCode, KeyEvent event) { |
| // guard against possible race conditions |
| if (mSearchable == null) { |
| return false; |
| } |
| |
| if (!event.isSystem() && |
| (keyCode != KeyEvent.KEYCODE_DPAD_UP) && |
| (keyCode != KeyEvent.KEYCODE_DPAD_LEFT) && |
| (keyCode != KeyEvent.KEYCODE_DPAD_RIGHT) && |
| (keyCode != KeyEvent.KEYCODE_DPAD_CENTER)) { |
| // restore focus and give key to EditText ... |
| if (mSearchAutoComplete.requestFocus()) { |
| return mSearchAutoComplete.dispatchKeyEvent(event); |
| } |
| } |
| |
| return false; |
| } |
| }; |
| |
| /** |
| * React to a click in the GO button by launching a search. |
| */ |
| View.OnClickListener mGoButtonClickListener = new View.OnClickListener() { |
| public void onClick(View v) { |
| // guard against possible race conditions |
| if (mSearchable == null) { |
| return; |
| } |
| launchQuerySearch(); |
| } |
| }; |
| |
| /** |
| * React to a click in the voice search button. |
| */ |
| View.OnClickListener mVoiceButtonClickListener = new View.OnClickListener() { |
| public void onClick(View v) { |
| // guard against possible race conditions |
| if (mSearchable == null) { |
| return; |
| } |
| SearchableInfo searchable = mSearchable; |
| try { |
| if (searchable.getVoiceSearchLaunchWebSearch()) { |
| Intent webSearchIntent = createVoiceWebSearchIntent(mVoiceWebSearchIntent, |
| searchable); |
| getContext().startActivity(webSearchIntent); |
| } else if (searchable.getVoiceSearchLaunchRecognizer()) { |
| Intent appSearchIntent = createVoiceAppSearchIntent(mVoiceAppSearchIntent, |
| searchable); |
| getContext().startActivity(appSearchIntent); |
| } |
| } catch (ActivityNotFoundException e) { |
| // Should not happen, since we check the availability of |
| // voice search before showing the button. But just in case... |
| Log.w(LOG_TAG, "Could not find voice search activity"); |
| } |
| dismiss(); |
| } |
| }; |
| |
| /** |
| * Create and return an Intent that can launch the voice search activity for web search. |
| */ |
| private Intent createVoiceWebSearchIntent(Intent baseIntent, SearchableInfo searchable) { |
| Intent voiceIntent = new Intent(baseIntent); |
| ComponentName searchActivity = searchable.getSearchActivity(); |
| voiceIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, |
| searchActivity == null ? null : searchActivity.flattenToShortString()); |
| return voiceIntent; |
| } |
| |
| /** |
| * Create and return an Intent that can launch the voice search activity, perform a specific |
| * voice transcription, and forward the results to the searchable activity. |
| * |
| * @param baseIntent The voice app search intent to start from |
| * @return A completely-configured intent ready to send to the voice search activity |
| */ |
| private Intent createVoiceAppSearchIntent(Intent baseIntent, SearchableInfo searchable) { |
| ComponentName searchActivity = searchable.getSearchActivity(); |
| |
| // create the necessary intent to set up a search-and-forward operation |
| // in the voice search system. We have to keep the bundle separate, |
| // because it becomes immutable once it enters the PendingIntent |
| Intent queryIntent = new Intent(Intent.ACTION_SEARCH); |
| queryIntent.setComponent(searchActivity); |
| PendingIntent pending = PendingIntent.getActivity( |
| getContext(), 0, queryIntent, PendingIntent.FLAG_ONE_SHOT); |
| |
| // Now set up the bundle that will be inserted into the pending intent |
| // when it's time to do the search. We always build it here (even if empty) |
| // because the voice search activity will always need to insert "QUERY" into |
| // it anyway. |
| Bundle queryExtras = new Bundle(); |
| if (mAppSearchData != null) { |
| queryExtras.putBundle(SearchManager.APP_DATA, mAppSearchData); |
| } |
| |
| // Now build the intent to launch the voice search. Add all necessary |
| // extras to launch the voice recognizer, and then all the necessary extras |
| // to forward the results to the searchable activity |
| Intent voiceIntent = new Intent(baseIntent); |
| |
| // Add all of the configuration options supplied by the searchable's metadata |
| String languageModel = RecognizerIntent.LANGUAGE_MODEL_FREE_FORM; |
| String prompt = null; |
| String language = null; |
| int maxResults = 1; |
| Resources resources = mActivityContext.getResources(); |
| if (searchable.getVoiceLanguageModeId() != 0) { |
| languageModel = resources.getString(searchable.getVoiceLanguageModeId()); |
| } |
| if (searchable.getVoicePromptTextId() != 0) { |
| prompt = resources.getString(searchable.getVoicePromptTextId()); |
| } |
| if (searchable.getVoiceLanguageId() != 0) { |
| language = resources.getString(searchable.getVoiceLanguageId()); |
| } |
| if (searchable.getVoiceMaxResults() != 0) { |
| maxResults = searchable.getVoiceMaxResults(); |
| } |
| voiceIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, languageModel); |
| voiceIntent.putExtra(RecognizerIntent.EXTRA_PROMPT, prompt); |
| voiceIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, language); |
| voiceIntent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, maxResults); |
| voiceIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, |
| searchActivity == null ? null : searchActivity.flattenToShortString()); |
| |
| // Add the values that configure forwarding the results |
| voiceIntent.putExtra(RecognizerIntent.EXTRA_RESULTS_PENDINGINTENT, pending); |
| voiceIntent.putExtra(RecognizerIntent.EXTRA_RESULTS_PENDINGINTENT_BUNDLE, queryExtras); |
| |
| return voiceIntent; |
| } |
| |
| /** |
| * Corrects http/https typo errors in the given url string, and if the protocol specifier was |
| * not present defaults to http. |
| * |
| * @param inUrl URL to check and fix |
| * @return fixed URL string. |
| */ |
| private String fixUrl(String inUrl) { |
| if (inUrl.startsWith("http://") || inUrl.startsWith("https://")) |
| return inUrl; |
| |
| if (inUrl.startsWith("http:") || inUrl.startsWith("https:")) { |
| if (inUrl.startsWith("http:/") || inUrl.startsWith("https:/")) { |
| inUrl = inUrl.replaceFirst("/", "//"); |
| } else { |
| inUrl = inUrl.replaceFirst(":", "://"); |
| } |
| } |
| |
| if (inUrl.indexOf("://") == -1) { |
| inUrl = "http://" + inUrl; |
| } |
| |
| return inUrl; |
| } |
| |
| /** |
| * React to the user typing "enter" or other hardwired keys while typing in the search box. |
| * This handles these special keys while the edit box has focus. |
| */ |
| View.OnKeyListener mTextKeyListener = new View.OnKeyListener() { |
| public boolean onKey(View v, int keyCode, KeyEvent event) { |
| // guard against possible race conditions |
| if (mSearchable == null) { |
| return false; |
| } |
| |
| if (DBG_LOG_TIMING) dbgLogTiming("doTextKey()"); |
| if (DBG) { |
| Log.d(LOG_TAG, "mTextListener.onKey(" + keyCode + "," + event |
| + "), selection: " + mSearchAutoComplete.getListSelection()); |
| } |
| |
| // If a suggestion is selected, handle enter, search key, and action keys |
| // as presses on the selected suggestion |
| if (mSearchAutoComplete.isPopupShowing() && |
| mSearchAutoComplete.getListSelection() != ListView.INVALID_POSITION) { |
| return onSuggestionsKey(v, keyCode, event); |
| } |
| |
| // If there is text in the query box, handle enter, and action keys |
| // The search key is handled by the dialog's onKeyDown(). |
| if (!mSearchAutoComplete.isEmpty()) { |
| if (keyCode == KeyEvent.KEYCODE_ENTER |
| && event.getAction() == KeyEvent.ACTION_UP) { |
| v.cancelLongPress(); |
| |
| // If this is a url entered by the user & we displayed the 'Go' button which |
| // the user clicked, launch the url instead of using it as a search query. |
| if (mSearchable.autoUrlDetect() && |
| (mSearchAutoCompleteImeOptions & EditorInfo.IME_MASK_ACTION) |
| == EditorInfo.IME_ACTION_GO) { |
| Uri uri = Uri.parse(fixUrl(mSearchAutoComplete.getText().toString())); |
| Intent intent = new Intent(Intent.ACTION_VIEW, uri); |
| intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| launchIntent(intent); |
| } else { |
| // Launch as a regular search. |
| launchQuerySearch(); |
| } |
| return true; |
| } |
| if (event.getAction() == KeyEvent.ACTION_DOWN) { |
| SearchableInfo.ActionKeyInfo actionKey = mSearchable.findActionKey(keyCode); |
| if ((actionKey != null) && (actionKey.getQueryActionMsg() != null)) { |
| launchQuerySearch(keyCode, actionKey.getQueryActionMsg()); |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| }; |
| |
| @Override |
| public void hide() { |
| if (!isShowing()) return; |
| |
| // We made sure the IME was displayed, so also make sure it is closed |
| // when we go away. |
| InputMethodManager imm = (InputMethodManager)getContext() |
| .getSystemService(Context.INPUT_METHOD_SERVICE); |
| if (imm != null) { |
| imm.hideSoftInputFromWindow( |
| getWindow().getDecorView().getWindowToken(), 0); |
| } |
| |
| super.hide(); |
| } |
| |
| /** |
| * React to the user typing while in the suggestions list. First, check for action |
| * keys. If not handled, try refocusing regular characters into the EditText. |
| */ |
| private boolean onSuggestionsKey(View v, int keyCode, KeyEvent event) { |
| // guard against possible race conditions (late arrival after dismiss) |
| if (mSearchable == null) { |
| return false; |
| } |
| if (mSuggestionsAdapter == null) { |
| return false; |
| } |
| if (event.getAction() == KeyEvent.ACTION_DOWN) { |
| if (DBG_LOG_TIMING) { |
| dbgLogTiming("onSuggestionsKey()"); |
| } |
| |
| // First, check for enter or search (both of which we'll treat as a "click") |
| if (keyCode == KeyEvent.KEYCODE_ENTER || keyCode == KeyEvent.KEYCODE_SEARCH) { |
| int position = mSearchAutoComplete.getListSelection(); |
| return launchSuggestion(position); |
| } |
| |
| // Next, check for left/right moves, which we use to "return" the user to the edit view |
| if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT || keyCode == KeyEvent.KEYCODE_DPAD_RIGHT) { |
| // give "focus" to text editor, with cursor at the beginning if |
| // left key, at end if right key |
| // TODO: Reverse left/right for right-to-left languages, e.g. Arabic |
| int selPoint = (keyCode == KeyEvent.KEYCODE_DPAD_LEFT) ? |
| 0 : mSearchAutoComplete.length(); |
| mSearchAutoComplete.setSelection(selPoint); |
| mSearchAutoComplete.setListSelection(0); |
| mSearchAutoComplete.clearListSelection(); |
| mSearchAutoComplete.ensureImeVisible(true); |
| |
| return true; |
| } |
| |
| // Next, check for an "up and out" move |
| if (keyCode == KeyEvent.KEYCODE_DPAD_UP |
| && 0 == mSearchAutoComplete.getListSelection()) { |
| restoreUserQuery(); |
| // let ACTV complete the move |
| return false; |
| } |
| |
| // Next, check for an "action key" |
| SearchableInfo.ActionKeyInfo actionKey = mSearchable.findActionKey(keyCode); |
| if ((actionKey != null) && |
| ((actionKey.getSuggestActionMsg() != null) || |
| (actionKey.getSuggestActionMsgColumn() != null))) { |
| // launch suggestion using action key column |
| int position = mSearchAutoComplete.getListSelection(); |
| if (position != ListView.INVALID_POSITION) { |
| Cursor c = mSuggestionsAdapter.getCursor(); |
| if (c.moveToPosition(position)) { |
| final String actionMsg = getActionKeyMessage(c, actionKey); |
| if (actionMsg != null && (actionMsg.length() > 0)) { |
| return launchSuggestion(position, keyCode, actionMsg); |
| } |
| } |
| } |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Launch a search for the text in the query text field. |
| */ |
| public void launchQuerySearch() { |
| launchQuerySearch(KeyEvent.KEYCODE_UNKNOWN, null); |
| } |
| |
| /** |
| * Launch a search for the text in the query text field. |
| * |
| * @param actionKey The key code of the action key that was pressed, |
| * or {@link KeyEvent#KEYCODE_UNKNOWN} if none. |
| * @param actionMsg The message for the action key that was pressed, |
| * or <code>null</code> if none. |
| */ |
| protected void launchQuerySearch(int actionKey, String actionMsg) { |
| String query = mSearchAutoComplete.getText().toString(); |
| String action = Intent.ACTION_SEARCH; |
| Intent intent = createIntent(action, null, null, query, null, |
| actionKey, actionMsg); |
| launchIntent(intent); |
| } |
| |
| /** |
| * Launches an intent based on a suggestion. |
| * |
| * @param position The index of the suggestion to create the intent from. |
| * @return true if a successful launch, false if could not (e.g. bad position). |
| */ |
| protected boolean launchSuggestion(int position) { |
| return launchSuggestion(position, KeyEvent.KEYCODE_UNKNOWN, null); |
| } |
| |
| /** |
| * Launches an intent based on a suggestion. |
| * |
| * @param position The index of the suggestion to create the intent from. |
| * @param actionKey The key code of the action key that was pressed, |
| * or {@link KeyEvent#KEYCODE_UNKNOWN} if none. |
| * @param actionMsg The message for the action key that was pressed, |
| * or <code>null</code> if none. |
| * @return true if a successful launch, false if could not (e.g. bad position). |
| */ |
| protected boolean launchSuggestion(int position, int actionKey, String actionMsg) { |
| Cursor c = mSuggestionsAdapter.getCursor(); |
| if ((c != null) && c.moveToPosition(position)) { |
| |
| Intent intent = createIntentFromSuggestion(c, actionKey, actionMsg); |
| |
| // launch the intent |
| launchIntent(intent); |
| |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Launches an intent, including any special intent handling. |
| */ |
| private void launchIntent(Intent intent) { |
| if (intent == null) { |
| return; |
| } |
| Log.d(LOG_TAG, "launching " + intent); |
| try { |
| // If the intent was created from a suggestion, it will always have an explicit |
| // component here. |
| Log.i(LOG_TAG, "Starting (as ourselves) " + intent.toURI()); |
| getContext().startActivity(intent); |
| // If the search switches to a different activity, |
| // SearchDialogWrapper#performActivityResuming |
| // will handle hiding the dialog when the next activity starts, but for |
| // real in-app search, we still need to dismiss the dialog. |
| dismiss(); |
| } catch (RuntimeException ex) { |
| Log.e(LOG_TAG, "Failed launch activity: " + intent, ex); |
| } |
| } |
| |
| /** |
| * If the intent is to open an HTTP or HTTPS URL, we set |
| * {@link Browser#EXTRA_APPLICATION_ID} so that any existing browser window that |
| * has been opened by us for the same URL will be reused. |
| */ |
| private void setBrowserApplicationId(Intent intent) { |
| Uri data = intent.getData(); |
| if (Intent.ACTION_VIEW.equals(intent.getAction()) && data != null) { |
| String scheme = data.getScheme(); |
| if (scheme != null && scheme.startsWith("http")) { |
| intent.putExtra(Browser.EXTRA_APPLICATION_ID, data.toString()); |
| } |
| } |
| } |
| |
| /** |
| * Sets the list item selection in the AutoCompleteTextView's ListView. |
| */ |
| public void setListSelection(int index) { |
| mSearchAutoComplete.setListSelection(index); |
| } |
| |
| /** |
| * When a particular suggestion has been selected, perform the various lookups required |
| * to use the suggestion. This includes checking the cursor for suggestion-specific data, |
| * and/or falling back to the XML for defaults; It also creates REST style Uri data when |
| * the suggestion includes a data id. |
| * |
| * @param c The suggestions cursor, moved to the row of the user's selection |
| * @param actionKey The key code of the action key that was pressed, |
| * or {@link KeyEvent#KEYCODE_UNKNOWN} if none. |
| * @param actionMsg The message for the action key that was pressed, |
| * or <code>null</code> if none. |
| * @return An intent for the suggestion at the cursor's position. |
| */ |
| private Intent createIntentFromSuggestion(Cursor c, int actionKey, String actionMsg) { |
| try { |
| // use specific action if supplied, or default action if supplied, or fixed default |
| String action = getColumnString(c, SearchManager.SUGGEST_COLUMN_INTENT_ACTION); |
| |
| // some items are display only, or have effect via the cursor respond click reporting. |
| if (SearchManager.INTENT_ACTION_NONE.equals(action)) { |
| return null; |
| } |
| |
| if (action == null) { |
| action = mSearchable.getSuggestIntentAction(); |
| } |
| if (action == null) { |
| action = Intent.ACTION_SEARCH; |
| } |
| |
| // use specific data if supplied, or default data if supplied |
| String data = getColumnString(c, SearchManager.SUGGEST_COLUMN_INTENT_DATA); |
| if (data == null) { |
| data = mSearchable.getSuggestIntentData(); |
| } |
| // then, if an ID was provided, append it. |
| if (data != null) { |
| String id = getColumnString(c, SearchManager.SUGGEST_COLUMN_INTENT_DATA_ID); |
| if (id != null) { |
| data = data + "/" + Uri.encode(id); |
| } |
| } |
| Uri dataUri = (data == null) ? null : Uri.parse(data); |
| |
| String componentName = getColumnString( |
| c, SearchManager.SUGGEST_COLUMN_INTENT_COMPONENT_NAME); |
| |
| String query = getColumnString(c, SearchManager.SUGGEST_COLUMN_QUERY); |
| String extraData = getColumnString(c, SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA); |
| |
| return createIntent(action, dataUri, extraData, query, componentName, actionKey, |
| actionMsg); |
| } catch (RuntimeException e ) { |
| int rowNum; |
| try { // be really paranoid now |
| rowNum = c.getPosition(); |
| } catch (RuntimeException e2 ) { |
| rowNum = -1; |
| } |
| Log.w(LOG_TAG, "Search Suggestions cursor at row " + rowNum + |
| " returned exception" + e.toString()); |
| return null; |
| } |
| } |
| |
| /** |
| * Constructs an intent from the given information and the search dialog state. |
| * |
| * @param action Intent action. |
| * @param data Intent data, or <code>null</code>. |
| * @param extraData Data for {@link SearchManager#EXTRA_DATA_KEY} or <code>null</code>. |
| * @param query Intent query, or <code>null</code>. |
| * @param componentName Data for {@link SearchManager#COMPONENT_NAME_KEY} or <code>null</code>. |
| * @param actionKey The key code of the action key that was pressed, |
| * or {@link KeyEvent#KEYCODE_UNKNOWN} if none. |
| * @param actionMsg The message for the action key that was pressed, |
| * or <code>null</code> if none. |
| * @param mode The search mode, one of the acceptable values for |
| * {@link SearchManager#SEARCH_MODE}, or {@code null}. |
| * @return The intent. |
| */ |
| private Intent createIntent(String action, Uri data, String extraData, String query, |
| String componentName, int actionKey, String actionMsg) { |
| // Now build the Intent |
| Intent intent = new Intent(action); |
| intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| // We need CLEAR_TOP to avoid reusing an old task that has other activities |
| // on top of the one we want. We don't want to do this in in-app search though, |
| // as it can be destructive to the activity stack. |
| if (data != null) { |
| intent.setData(data); |
| } |
| intent.putExtra(SearchManager.USER_QUERY, mUserQuery); |
| if (query != null) { |
| intent.putExtra(SearchManager.QUERY, query); |
| } |
| if (extraData != null) { |
| intent.putExtra(SearchManager.EXTRA_DATA_KEY, extraData); |
| } |
| if (mAppSearchData != null) { |
| intent.putExtra(SearchManager.APP_DATA, mAppSearchData); |
| } |
| if (actionKey != KeyEvent.KEYCODE_UNKNOWN) { |
| intent.putExtra(SearchManager.ACTION_KEY, actionKey); |
| intent.putExtra(SearchManager.ACTION_MSG, actionMsg); |
| } |
| intent.setComponent(mSearchable.getSearchActivity()); |
| return intent; |
| } |
| |
| /** |
| * For a given suggestion and a given cursor row, get the action message. If not provided |
| * by the specific row/column, also check for a single definition (for the action key). |
| * |
| * @param c The cursor providing suggestions |
| * @param actionKey The actionkey record being examined |
| * |
| * @return Returns a string, or null if no action key message for this suggestion |
| */ |
| private static String getActionKeyMessage(Cursor c, SearchableInfo.ActionKeyInfo actionKey) { |
| String result = null; |
| // check first in the cursor data, for a suggestion-specific message |
| final String column = actionKey.getSuggestActionMsgColumn(); |
| if (column != null) { |
| result = SuggestionsAdapter.getColumnString(c, column); |
| } |
| // If the cursor didn't give us a message, see if there's a single message defined |
| // for the actionkey (for all suggestions) |
| if (result == null) { |
| result = actionKey.getSuggestActionMsg(); |
| } |
| return result; |
| } |
| |
| /** |
| * The root element in the search bar layout. This is a custom view just to override |
| * the handling of the back button. |
| */ |
| public static class SearchBar extends LinearLayout { |
| |
| private SearchDialog mSearchDialog; |
| |
| public SearchBar(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| public SearchBar(Context context) { |
| super(context); |
| } |
| |
| public void setSearchDialog(SearchDialog searchDialog) { |
| mSearchDialog = searchDialog; |
| } |
| |
| /** |
| * Overrides the handling of the back key to move back to the previous sources or dismiss |
| * the search dialog, instead of dismissing the input method. |
| */ |
| @Override |
| public boolean dispatchKeyEventPreIme(KeyEvent event) { |
| if (DBG) Log.d(LOG_TAG, "onKeyPreIme(" + event + ")"); |
| if (mSearchDialog != null && event.getKeyCode() == KeyEvent.KEYCODE_BACK) { |
| KeyEvent.DispatcherState state = getKeyDispatcherState(); |
| if (state != null) { |
| if (event.getAction() == KeyEvent.ACTION_DOWN |
| && event.getRepeatCount() == 0) { |
| state.startTracking(event, this); |
| return true; |
| } else if (event.getAction() == KeyEvent.ACTION_UP |
| && !event.isCanceled() && state.isTracking(event)) { |
| mSearchDialog.onBackPressed(); |
| return true; |
| } |
| } |
| } |
| return super.dispatchKeyEventPreIme(event); |
| } |
| } |
| |
| /** |
| * Local subclass for AutoCompleteTextView. |
| */ |
| public static class SearchAutoComplete extends AutoCompleteTextView { |
| |
| private int mThreshold; |
| |
| public SearchAutoComplete(Context context) { |
| super(context); |
| mThreshold = getThreshold(); |
| } |
| |
| public SearchAutoComplete(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| mThreshold = getThreshold(); |
| } |
| |
| public SearchAutoComplete(Context context, AttributeSet attrs, int defStyle) { |
| super(context, attrs, defStyle); |
| mThreshold = getThreshold(); |
| } |
| |
| @Override |
| public void setThreshold(int threshold) { |
| super.setThreshold(threshold); |
| mThreshold = threshold; |
| } |
| |
| /** |
| * Returns true if the text field is empty, or contains only whitespace. |
| */ |
| private boolean isEmpty() { |
| return TextUtils.getTrimmedLength(getText()) == 0; |
| } |
| |
| /** |
| * We override this method to avoid replacing the query box text |
| * when a suggestion is clicked. |
| */ |
| @Override |
| protected void replaceText(CharSequence text) { |
| } |
| |
| /** |
| * We override this method to avoid an extra onItemClick being called on the |
| * drop-down's OnItemClickListener by {@link AutoCompleteTextView#onKeyUp(int, KeyEvent)} |
| * when an item is clicked with the trackball. |
| */ |
| @Override |
| public void performCompletion() { |
| } |
| |
| /** |
| * We override this method to be sure and show the soft keyboard if appropriate when |
| * the TextView has focus. |
| */ |
| @Override |
| public void onWindowFocusChanged(boolean hasWindowFocus) { |
| super.onWindowFocusChanged(hasWindowFocus); |
| |
| if (hasWindowFocus) { |
| InputMethodManager inputManager = (InputMethodManager) |
| getContext().getSystemService(Context.INPUT_METHOD_SERVICE); |
| inputManager.showSoftInput(this, 0); |
| // If in landscape mode, then make sure that |
| // the ime is in front of the dropdown. |
| if (isLandscapeMode(getContext())) { |
| ensureImeVisible(true); |
| } |
| } |
| } |
| |
| /** |
| * We override this method so that we can allow a threshold of zero, which ACTV does not. |
| */ |
| @Override |
| public boolean enoughToFilter() { |
| return mThreshold <= 0 || super.enoughToFilter(); |
| } |
| |
| } |
| |
| @Override |
| public void onBackPressed() { |
| // If the input method is covering the search dialog completely, |
| // e.g. in landscape mode with no hard keyboard, dismiss just the input method |
| InputMethodManager imm = (InputMethodManager)getContext() |
| .getSystemService(Context.INPUT_METHOD_SERVICE); |
| if (imm != null && imm.isFullscreenMode() && |
| imm.hideSoftInputFromWindow(getWindow().getDecorView().getWindowToken(), 0)) { |
| return; |
| } |
| // Close search dialog |
| cancel(); |
| } |
| |
| /** |
| * Implements OnItemClickListener |
| */ |
| public void onItemClick(AdapterView<?> parent, View view, int position, long id) { |
| if (DBG) Log.d(LOG_TAG, "onItemClick() position " + position); |
| launchSuggestion(position); |
| } |
| |
| /** |
| * Implements OnItemSelectedListener |
| */ |
| public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { |
| if (DBG) Log.d(LOG_TAG, "onItemSelected() position " + position); |
| // A suggestion has been selected, rewrite the query if possible, |
| // otherwise the restore the original query. |
| if (REWRITE_QUERIES) { |
| rewriteQueryFromSuggestion(position); |
| } |
| } |
| |
| /** |
| * Implements OnItemSelectedListener |
| */ |
| public void onNothingSelected(AdapterView<?> parent) { |
| if (DBG) Log.d(LOG_TAG, "onNothingSelected()"); |
| } |
| |
| /** |
| * Query rewriting. |
| */ |
| |
| private void rewriteQueryFromSuggestion(int position) { |
| Cursor c = mSuggestionsAdapter.getCursor(); |
| if (c == null) { |
| return; |
| } |
| if (c.moveToPosition(position)) { |
| // Get the new query from the suggestion. |
| CharSequence newQuery = mSuggestionsAdapter.convertToString(c); |
| if (newQuery != null) { |
| // The suggestion rewrites the query. |
| if (DBG) Log.d(LOG_TAG, "Rewriting query to '" + newQuery + "'"); |
| // Update the text field, without getting new suggestions. |
| setQuery(newQuery); |
| } else { |
| // The suggestion does not rewrite the query, restore the user's query. |
| if (DBG) Log.d(LOG_TAG, "Suggestion gives no rewrite, restoring user query."); |
| restoreUserQuery(); |
| } |
| } else { |
| // We got a bad position, restore the user's query. |
| Log.w(LOG_TAG, "Bad suggestion position: " + position); |
| restoreUserQuery(); |
| } |
| } |
| |
| /** |
| * Restores the query entered by the user if needed. |
| */ |
| private void restoreUserQuery() { |
| if (DBG) Log.d(LOG_TAG, "Restoring query to '" + mUserQuery + "'"); |
| setQuery(mUserQuery); |
| } |
| |
| /** |
| * Sets the text in the query box, without updating the suggestions. |
| */ |
| private void setQuery(CharSequence query) { |
| mSearchAutoComplete.setText(query, false); |
| if (query != null) { |
| mSearchAutoComplete.setSelection(query.length()); |
| } |
| } |
| |
| /** |
| * Sets the text in the query box, updating the suggestions. |
| */ |
| private void setUserQuery(String query) { |
| if (query == null) { |
| query = ""; |
| } |
| mUserQuery = query; |
| mSearchAutoComplete.setText(query); |
| mSearchAutoComplete.setSelection(query.length()); |
| } |
| |
| /** |
| * Debugging Support |
| */ |
| |
| /** |
| * For debugging only, sample the millisecond clock and log it. |
| * Uses AtomicLong so we can use in multiple threads |
| */ |
| private AtomicLong mLastLogTime = new AtomicLong(SystemClock.uptimeMillis()); |
| private void dbgLogTiming(final String caller) { |
| long millis = SystemClock.uptimeMillis(); |
| long oldTime = mLastLogTime.getAndSet(millis); |
| long delta = millis - oldTime; |
| final String report = millis + " (+" + delta + ") ticks for Search keystroke in " + caller; |
| Log.d(LOG_TAG,report); |
| } |
| } |
