// Copyright 2019 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.payments.handler;
import android.app.Activity;
import org.chromium.base.version_info.VersionInfo;
import org.chromium.chrome.browser.content.WebContentsFactory;
import org.chromium.chrome.browser.payments.handler.toolbar.PaymentHandlerToolbarCoordinator;
import org.chromium.chrome.browser.profiles.Profile;
import org.chromium.chrome.browser.tab.Tab;
import org.chromium.chrome.browser.tab.TabObscuringHandler;
import org.chromium.chrome.browser.tab.TabObscuringHandlerSupplier;
import org.chromium.chrome.browser.tabmodel.TabModelSelectorSupplier;
import org.chromium.components.browser_ui.bottomsheet.BottomSheetController;
import org.chromium.components.browser_ui.bottomsheet.BottomSheetControllerProvider;
import org.chromium.components.embedder_support.view.ContentView;
import org.chromium.components.payments.InputProtector;
import org.chromium.components.payments.PaymentHandlerNavigationThrottle;
import org.chromium.components.thinwebview.ThinWebView;
import org.chromium.components.thinwebview.ThinWebViewConstraints;
import org.chromium.components.thinwebview.ThinWebViewFactory;
import org.chromium.content_public.browser.LoadUrlParams;
import org.chromium.content_public.browser.SelectionClient;
import org.chromium.content_public.browser.SelectionPopupController;
import org.chromium.content_public.browser.WebContents;
import org.chromium.ui.base.IntentRequestTracker;
import org.chromium.ui.base.ViewAndroidDelegate;
import org.chromium.ui.base.WindowAndroid;
import org.chromium.ui.modelutil.PropertyModel;
import org.chromium.ui.modelutil.PropertyModelChangeProcessor;
import org.chromium.url.GURL;
/**
* PaymentHandler coordinator, which owns the component overall, i.e., creates other objects in the
* component and connects them. It decouples the implementation of this component from other
* components and acts as the point of contact between them. Any code in this component that needs
* to interact with another component does that through this coordinator.
*/
public class PaymentHandlerCoordinator {
private Runnable mHider;
private WebContents mPaymentHandlerWebContents;
private PaymentHandlerToolbarCoordinator mToolbarCoordinator;
private InputProtector mInputProtector = new InputProtector();
/** Constructs the payment-handler component coordinator. */
public PaymentHandlerCoordinator() {}
/** Observes the state changes of the payment-handler UI. */
public interface PaymentHandlerUiObserver {
/** Called when Payment Handler UI is closed. */
void onPaymentHandlerUiClosed();
/** Called when Payment Handler UI is shown. */
void onPaymentHandlerUiShown();
}
/**
* Shows the payment-handler UI.
*
* @param paymentRequestWebContents The WebContents of the merchant's frame.
* @param url The url of the payment handler app, i.e., that of
* "PaymentRequestEvent.openWindow(url)".
* @param uiObserver The {@link PaymentHandlerUiObserver} that observes this Payment Handler UI.
* @return The WebContents of the payment handler that's just opened when the showing is
* successful; null if failed. When null is returned, caller should also call hide().
*/
public WebContents show(
WebContents paymentRequestWebContents, GURL url, PaymentHandlerUiObserver uiObserver) {
assert mHider == null : "Already showing payment-handler UI";
assert paymentRequestWebContents != null;
WindowAndroid windowAndroid = paymentRequestWebContents.getTopLevelNativeWindow();
if (windowAndroid == null) return null;
Activity activity = windowAndroid.getActivity().get();
if (activity == null) return null;
Profile profile = Profile.fromWebContents(paymentRequestWebContents);
if (profile == null) return null;
mInputProtector.markShowTime();
mPaymentHandlerWebContents =
WebContentsFactory.createWebContents(profile, /* initiallyHidden= */ false, false);
PaymentHandlerNavigationThrottle.markPaymentHandlerWebContents(mPaymentHandlerWebContents);
ContentView webContentView =
ContentView.createContentView(activity, mPaymentHandlerWebContents);
initializeWebContents(windowAndroid, webContentView, url);
mToolbarCoordinator =
new PaymentHandlerToolbarCoordinator(
activity,
mPaymentHandlerWebContents,
url,
windowAndroid::getModalDialogManager);
BottomSheetController bottomSheetController =
BottomSheetControllerProvider.from(windowAndroid);
Tab currentTab = TabModelSelectorSupplier.getCurrentTabFrom(windowAndroid);
TabObscuringHandler tabObscuringHandler =
TabObscuringHandlerSupplier.getValueOrNullFrom(windowAndroid);
if (bottomSheetController == null || currentTab == null || tabObscuringHandler == null) {
return null;
}
PropertyModel model = new PropertyModel.Builder(PaymentHandlerProperties.ALL_KEYS).build();
PaymentHandlerMediator mediator =
new PaymentHandlerMediator(
model,
this::hide,
/* paymentRequestWebContents= */ paymentRequestWebContents,
/* paymentHandlerWebContents= */ mPaymentHandlerWebContents,
uiObserver,
currentTab.getView(),
mToolbarCoordinator.getToolbarHeightPx(),
bottomSheetController,
tabObscuringHandler,
activity,
mInputProtector);
activity.getWindow().getDecorView().addOnLayoutChangeListener(mediator);
bottomSheetController.addObserver(mediator);
mPaymentHandlerWebContents.addObserver(mediator);
mToolbarCoordinator.setCloseButtonOnClickCallback(mediator::onToolbarCloseButtonClicked);
IntentRequestTracker intentRequestTracker = windowAndroid.getIntentRequestTracker();
assert intentRequestTracker != null;
ThinWebView thinWebView =
ThinWebViewFactory.create(
activity, new ThinWebViewConstraints(), intentRequestTracker);
assert webContentView.getParent() == null;
thinWebView.attachWebContents(mPaymentHandlerWebContents, webContentView, null);
PaymentHandlerView view =
new PaymentHandlerView(
activity,
mPaymentHandlerWebContents,
mToolbarCoordinator.getView(),
thinWebView.getView(),
mInputProtector);
assert mToolbarCoordinator.getToolbarHeightPx() == view.getToolbarHeightPx();
PropertyModelChangeProcessor changeProcessor =
PropertyModelChangeProcessor.create(model, view, PaymentHandlerViewBinder::bind);
mHider =
() -> {
changeProcessor.destroy();
bottomSheetController.removeObserver(mediator);
bottomSheetController.hideContent(/* content= */ view, /* animate= */ true);
uiObserver.onPaymentHandlerUiClosed();
assert activity.getWindow() != null;
assert activity.getWindow().getDecorView() != null;
activity.getWindow().getDecorView().removeOnLayoutChangeListener(mediator);
mediator.destroy();
thinWebView.destroy();
mPaymentHandlerWebContents.destroy();
};
boolean isShowSuccess = bottomSheetController.requestShowContent(view, /* animate= */ true);
if (!isShowSuccess) return null;
return mPaymentHandlerWebContents;
}
private void initializeWebContents(
WindowAndroid windowAndroid, ContentView webContentView, GURL url) {
mPaymentHandlerWebContents.setDelegates(
VersionInfo.getProductVersion(),
ViewAndroidDelegate.createBasicDelegate(webContentView),
webContentView,
windowAndroid,
WebContents.createDefaultInternalsHolder());
SelectionPopupController controller =
SelectionPopupController.fromWebContents(mPaymentHandlerWebContents);
controller.setActionModeCallback(
new PaymentHandlerActionModeCallback(mPaymentHandlerWebContents));
controller.setSelectionClient(
SelectionClient.createSmartSelectionClient(mPaymentHandlerWebContents));
mPaymentHandlerWebContents
.getNavigationController()
.loadUrl(new LoadUrlParams(url.getSpec()));
}
/**
* Get the WebContents of the Payment Handler for testing purpose. In other situations,
* WebContents should not be leaked outside the Payment Handler.
*
* @return The WebContents of the Payment Handler.
*/
public WebContents getWebContentsForTest() {
return mPaymentHandlerWebContents;
}
/** Hides the payment-handler UI. */
public void hide() {
if (mHider == null) return;
mHider.run();
mHider = null;
}
public void clickSecurityIconForTest() {
mToolbarCoordinator.clickSecurityIconForTest();
}
public void clickCloseButtonForTest() {
mToolbarCoordinator.clickCloseButtonForTest();
}
public void setInputProtectorForTest(InputProtector inputProtector) {
mInputProtector = inputProtector;
}
}
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