// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package org.chromium.chrome.browser.price_change;
import static org.chromium.chrome.browser.preferences.ChromePreferenceKeys.PRICE_TRACKING_IDS_FOR_TABS_WITH_PRICE_DROP;
import android.content.Context;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import androidx.appcompat.content.res.AppCompatResources;
import org.chromium.base.shared_preferences.SharedPreferencesManager;
import org.chromium.chrome.browser.magic_stack.ModuleDelegate;
import org.chromium.chrome.browser.magic_stack.ModuleDelegate.ModuleType;
import org.chromium.chrome.browser.preferences.ChromeSharedPreferences;
import org.chromium.chrome.browser.price_tracking.PriceTrackingFeatures;
import org.chromium.chrome.browser.price_tracking.PriceTrackingUtilities;
import org.chromium.chrome.browser.profiles.Profile;
import org.chromium.chrome.browser.tab.Tab;
import org.chromium.chrome.browser.tab.state.ShoppingPersistedTabData;
import org.chromium.chrome.browser.tab.state.ShoppingPersistedTabDataService;
import org.chromium.chrome.browser.tabmodel.TabModelSelector;
import org.chromium.chrome.browser.tabmodel.TabModelSelectorObserver;
import org.chromium.chrome.browser.ui.favicon.FaviconHelper;
import org.chromium.components.embedder_support.util.UrlUtilities;
import org.chromium.components.image_fetcher.ImageFetcher;
import org.chromium.ui.modelutil.PropertyModel;
import java.util.HashSet;
import java.util.Set;
/**
* Mediator for the price change module which can be embedded by surfaces like NTP or Start surface.
*/
public class PriceChangeModuleMediator implements TabModelSelectorObserver {
private final Context mContext;
private final ShoppingPersistedTabDataService mShoppingPersistedTabDataService;
private final FaviconHelper mFaviconHelper;
private final TabModelSelector mTabModelSelector;
private final PropertyModel mModel;
private final int mFaviconSize;
private final Profile mProfile;
private final ImageFetcher mImageFetcher;
private final ModuleDelegate mModuleDelegate;
private final @ModuleType int mModuleType;
private final SharedPreferences mSharedPreferences;
private final SharedPreferences.OnSharedPreferenceChangeListener mPriceAnnotationsPrefListener;
PriceChangeModuleMediator(
Context context,
PropertyModel model,
Profile profile,
TabModelSelector tabModelSelector,
FaviconHelper faviconHelper,
ImageFetcher imageFetcher,
ModuleDelegate moduleDelegate,
SharedPreferences sharedPreferences) {
mContext = context;
mModel = model;
mProfile = profile;
mShoppingPersistedTabDataService = ShoppingPersistedTabDataService.getForProfile(profile);
mFaviconHelper = faviconHelper;
mTabModelSelector = tabModelSelector;
mFaviconSize = context.getResources().getDimensionPixelSize(R.dimen.default_favicon_size);
mImageFetcher = imageFetcher;
mModuleDelegate = moduleDelegate;
mModuleType = ModuleType.PRICE_CHANGE;
mSharedPreferences = sharedPreferences;
mPriceAnnotationsPrefListener =
(sharedPrefs, key) -> {
if (!PriceTrackingUtilities.TRACK_PRICES_ON_TABS.equals(key)) return;
if (!sharedPrefs.getBoolean(
PriceTrackingUtilities.TRACK_PRICES_ON_TABS,
PriceTrackingFeatures.isPriceTrackingEnabled(profile))) {
mModuleDelegate.removeModule(getModuleType());
}
};
mSharedPreferences.registerOnSharedPreferenceChangeListener(mPriceAnnotationsPrefListener);
}
/** Show the price change module. */
public void showModule() {
if (!mTabModelSelector.isTabStateInitialized()) {
mTabModelSelector.addObserver(this);
return;
}
if (!mShoppingPersistedTabDataService.isInitialized()) {
SharedPreferencesManager manager = ChromeSharedPreferences.getInstance();
Set<Tab> tabList = new HashSet<>();
for (String tabIdString :
manager.readStringSet(PRICE_TRACKING_IDS_FOR_TABS_WITH_PRICE_DROP)) {
tabList.add(
mTabModelSelector.getModel(false).getTabById(Integer.valueOf(tabIdString)));
}
mShoppingPersistedTabDataService.initialize(tabList);
}
mShoppingPersistedTabDataService.getAllShoppingPersistedTabDataWithPriceDrop(
res -> {
if (res.size() == 0) {
mModuleDelegate.onDataFetchFailed(mModuleType);
return;
}
Tab tab = res.get(0).getTab();
// Check if tab is in the current tab model for multi-window case.
if (tab == null
|| mTabModelSelector.getModel(false).getTabById(tab.getId()) == null) {
mModuleDelegate.onDataFetchFailed(mModuleType);
return;
}
ShoppingPersistedTabData data = res.get(0).getData();
mModel.set(
PriceChangeModuleProperties.MODULE_TITLE,
mContext.getResources()
.getQuantityString(
org.chromium.chrome.browser.price_change.R.plurals
.price_change_module_title,
1));
mModel.set(
PriceChangeModuleProperties.MODULE_PRODUCT_NAME_STRING,
data.getProductTitle());
mModel.set(
PriceChangeModuleProperties.MODULE_CURRENT_PRICE_STRING,
data.getPriceDrop().price);
mModel.set(
PriceChangeModuleProperties.MODULE_PREVIOUS_PRICE_STRING,
data.getPriceDrop().previousPrice);
String domain =
UrlUtilities.getDomainAndRegistry(
res.get(0).getTab().getUrl().getSpec(), false);
mModel.set(PriceChangeModuleProperties.MODULE_DOMAIN_STRING, domain);
mModel.set(
PriceChangeModuleProperties.MODULE_ACCESSIBILITY_LABEL,
mContext.getString(
R.string.price_change_module_accessibility_label,
data.getPriceDrop().previousPrice,
data.getPriceDrop().price,
data.getProductTitle(),
domain));
mModel.set(
PriceChangeModuleProperties.MODULE_ON_CLICK_LISTENER,
v -> mModuleDelegate.onTabClicked(tab.getId(), mModuleType));
// No need to wait for image and favicon ready to notify that the module is
// ready.
mModuleDelegate.onDataReady(mModuleType, mModel);
mFaviconHelper.getLocalFaviconImageForURL(
mProfile,
tab.getUrl(),
mFaviconSize,
(image, iconUrl) -> {
if (image != null) {
mModel.set(
PriceChangeModuleProperties.MODULE_FAVICON_BITMAP,
image);
return;
}
Drawable drawable =
AppCompatResources.getDrawable(
mContext, R.drawable.ic_globe_24dp);
Bitmap bitmap =
Bitmap.createBitmap(
mFaviconSize,
mFaviconSize,
Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, mFaviconSize, mFaviconSize);
drawable.draw(canvas);
mModel.set(
PriceChangeModuleProperties.MODULE_FAVICON_BITMAP, bitmap);
});
ImageFetcher.Params params =
ImageFetcher.Params.create(
data.getProductImageUrl(),
ImageFetcher.PRICE_CHANGE_MODULE_NAME);
mImageFetcher.fetchImage(
params,
image -> {
mModel.set(
PriceChangeModuleProperties.MODULE_PRODUCT_IMAGE_BITMAP,
image);
});
});
}
void destroy() {
mSharedPreferences.unregisterOnSharedPreferenceChangeListener(
mPriceAnnotationsPrefListener);
mTabModelSelector.removeObserver(this);
}
int getModuleType() {
return mModuleType;
}
@Override
public void onTabStateInitialized() {
mTabModelSelector.removeObserver(this);
showModule();
}
}
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