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| 1 // Copyright 2017 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.locale; |
| 6 |
| 7 import android.content.Context; |
| 8 import android.content.DialogInterface; |
| 9 import android.os.Bundle; |
| 10 import android.support.annotation.Nullable; |
| 11 import android.view.View; |
| 12 import android.widget.RadioGroup; |
| 13 import android.widget.RadioGroup.OnCheckedChangeListener; |
| 14 |
| 15 import org.chromium.base.Callback; |
| 16 import org.chromium.base.library_loader.LibraryLoader; |
| 17 import org.chromium.chrome.R; |
| 18 import org.chromium.chrome.browser.infobar.InfoBarControlLayout; |
| 19 import org.chromium.chrome.browser.locale.LocaleManager.SearchEnginePromoType; |
| 20 import org.chromium.chrome.browser.search_engines.TemplateUrlService; |
| 21 import org.chromium.chrome.browser.search_engines.TemplateUrlService.TemplateUrl
; |
| 22 import org.chromium.chrome.browser.widget.PromoDialog; |
| 23 |
| 24 import java.util.ArrayList; |
| 25 import java.util.Collections; |
| 26 import java.util.List; |
| 27 |
| 28 /** A dialog that forces the user to choose a default search engine. */ |
| 29 public class DefaultSearchEnginePromoDialog extends PromoDialog implements OnChe
ckedChangeListener { |
| 30 /** Used to determine the promo dialog contents. */ |
| 31 @SearchEnginePromoType |
| 32 private final int mDialogType; |
| 33 |
| 34 /** Called when the dialog is dismissed after the user has chosen a search e
ngine. */ |
| 35 private final Callback<Boolean> mOnDismissed; |
| 36 |
| 37 private RadioGroup mRadioGroup; |
| 38 private String mSelectedKeyword; |
| 39 |
| 40 /** |
| 41 * Construct and show the dialog. Will be asynchronous if the TemplateUrlSe
rvice has not yet |
| 42 * been loaded. |
| 43 * |
| 44 * @param context Context to build the dialog with. |
| 45 * @param dialogType Type of dialog to show. |
| 46 * @param onDismissed Notified about whether the user chose an engine when i
t got dismissed. |
| 47 */ |
| 48 public static void show(final Context context, @SearchEnginePromoType final
int dialogType, |
| 49 @Nullable final Callback<Boolean> onDismissed) { |
| 50 assert LibraryLoader.isInitialized(); |
| 51 |
| 52 // Load up the search engines. |
| 53 final TemplateUrlService instance = TemplateUrlService.getInstance(); |
| 54 instance.registerLoadListener(new TemplateUrlService.LoadListener() { |
| 55 @Override |
| 56 public void onTemplateUrlServiceLoaded() { |
| 57 instance.unregisterLoadListener(this); |
| 58 new DefaultSearchEnginePromoDialog(context, dialogType, onDismis
sed).show(); |
| 59 } |
| 60 }); |
| 61 if (!instance.isLoaded()) instance.load(); |
| 62 } |
| 63 |
| 64 private DefaultSearchEnginePromoDialog( |
| 65 Context context, int dialogType, @Nullable Callback<Boolean> onDismi
ssed) { |
| 66 super(context); |
| 67 mDialogType = dialogType; |
| 68 mOnDismissed = onDismissed; |
| 69 setOnDismissListener(this); |
| 70 |
| 71 // No one should be able to bypass this dialog by clicking outside or by
hitting back. |
| 72 setCancelable(false); |
| 73 setCanceledOnTouchOutside(false); |
| 74 } |
| 75 |
| 76 @Override |
| 77 protected DialogParams getDialogParams() { |
| 78 PromoDialog.DialogParams params = new PromoDialog.DialogParams(); |
| 79 params.headerStringResource = R.string.search_engine_dialog_title; |
| 80 params.footerStringResource = R.string.search_engine_dialog_footer; |
| 81 params.primaryButtonStringResource = R.string.ok; |
| 82 return params; |
| 83 } |
| 84 |
| 85 @Override |
| 86 protected void onCreate(Bundle savedInstanceState) { |
| 87 super.onCreate(savedInstanceState); |
| 88 |
| 89 // Determine what search engines will be listed. |
| 90 TemplateUrlService instance = TemplateUrlService.getInstance(); |
| 91 assert instance.isLoaded(); |
| 92 List<TemplateUrl> engines = null; |
| 93 if (mDialogType == LocaleManager.SEARCH_ENGINE_PROMO_SHOW_EXISTING) { |
| 94 engines = instance.getSearchEngines(); |
| 95 } else { |
| 96 // TODO(dfalcantara): Handle the new user case. |
| 97 assert false; |
| 98 } |
| 99 |
| 100 // Shuffle up the engines. |
| 101 List<CharSequence> engineNames = new ArrayList<>(); |
| 102 List<String> engineKeywords = new ArrayList<>(); |
| 103 Collections.shuffle(engines); |
| 104 for (int i = 0; i < engines.size(); i++) { |
| 105 TemplateUrl engine = engines.get(i); |
| 106 engineNames.add(engine.getShortName()); |
| 107 engineKeywords.add(engine.getKeyword()); |
| 108 } |
| 109 |
| 110 // Add the search engines to the dialog. |
| 111 InfoBarControlLayout controls = addControlLayout(); |
| 112 mRadioGroup = controls.addRadioButtons( |
| 113 engineNames, engineKeywords, InfoBarControlLayout.INVALID_INDEX)
; |
| 114 mRadioGroup.setOnCheckedChangeListener(this); |
| 115 updateButtonState(); |
| 116 } |
| 117 |
| 118 @Override |
| 119 public void onCheckedChanged(RadioGroup group, int checkedId) { |
| 120 mSelectedKeyword = (String) group.findViewById(checkedId).getTag(); |
| 121 updateButtonState(); |
| 122 } |
| 123 |
| 124 @Override |
| 125 public void onClick(View view) { |
| 126 if (view.getId() == R.id.button_primary) { |
| 127 if (mSelectedKeyword == null) { |
| 128 updateButtonState(); |
| 129 return; |
| 130 } |
| 131 |
| 132 dismiss(); |
| 133 } else { |
| 134 assert false : "Unhandled click."; |
| 135 } |
| 136 |
| 137 // Don't propagate the click to the parent to prevent circumventing the
dialog. |
| 138 } |
| 139 |
| 140 @Override |
| 141 public void onDismiss(DialogInterface dialog) { |
| 142 if (mSelectedKeyword == null) { |
| 143 // This shouldn't happen, but in case it does, finish the Activity s
o that the user has |
| 144 // to respond to the dialog next time. |
| 145 if (getOwnerActivity() != null) getOwnerActivity().finish(); |
| 146 } else { |
| 147 TemplateUrlService.getInstance().setSearchEngine(mSelectedKeyword.to
String()); |
| 148 // TODO(dfalcantara): Prevent the dialog from appearing again. |
| 149 } |
| 150 |
| 151 if (mOnDismissed != null) mOnDismissed.onResult(mSelectedKeyword != null
); |
| 152 } |
| 153 |
| 154 private void updateButtonState() { |
| 155 findViewById(R.id.button_primary).setEnabled(mSelectedKeyword != null); |
| 156 } |
| 157 } |
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