chrome/android/java/src/org/chromium/chrome/browser/infobar/InstallableAmbientBadgeInfoBar.java

// Copyright 2018 The Chromium Authors. All rights reserved.
// 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.infobar;

import static android.view.View.IMPORTANT_FOR_ACCESSIBILITY_NO;

import android.annotation.TargetApi;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.drawable.AdaptiveIconDrawable;
import android.graphics.drawable.Icon;
import android.os.Build;
import android.view.Gravity;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

import org.chromium.base.ApiCompatibilityUtils;
import org.chromium.base.ContextUtils;
import org.chromium.base.annotations.CalledByNative;
import org.chromium.base.annotations.NativeMethods;
import org.chromium.chrome.R;
import org.chromium.chrome.browser.ResourceId;
import org.chromium.chrome.browser.ShortcutHelper;
import org.chromium.chrome.browser.ui.widget.text.AccessibleTextView;

/**
 * An ambient infobar to tell the user that the current site they are visiting is a PWA.
 */
public class InstallableAmbientBadgeInfoBar extends InfoBar implements View.OnClickListener {
    private String mMessageText;
    private String mUrl;
    private boolean mIsHiding;

    @CalledByNative
    private static InfoBar show(int enumeratedIconId, Bitmap iconBitmap, String messageText,
            String url, boolean isIconAdaptive) {
        int drawableId = ResourceId.mapToDrawableId(enumeratedIconId);

        Bitmap iconBitmapToUse = iconBitmap;
        if (isIconAdaptive && ShortcutHelper.doesAndroidSupportMaskableIcons()) {
            iconBitmapToUse = fetchAdaptiveIconBitmap(iconBitmap);
        }

        return new InstallableAmbientBadgeInfoBar(drawableId, iconBitmapToUse, messageText, url);
    }

    @TargetApi(Build.VERSION_CODES.O)
    private static Bitmap fetchAdaptiveIconBitmap(Bitmap bitmap) {
        Bitmap padded = ShortcutHelper.createHomeScreenIconFromWebIcon(bitmap, true);
        Icon adaptiveIcon = Icon.createWithAdaptiveBitmap(padded);
        AdaptiveIconDrawable adaptiveIconDrawable =
                (AdaptiveIconDrawable) adaptiveIcon.loadDrawable(
                        ContextUtils.getApplicationContext());

        Bitmap result = Bitmap.createBitmap(adaptiveIconDrawable.getIntrinsicWidth(),
                adaptiveIconDrawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(result);
        adaptiveIconDrawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
        adaptiveIconDrawable.draw(canvas);

        return result;
    }

    @Override
    protected boolean usesCompactLayout() {
        return true;
    }

    @Override
    protected void onStartedHiding() {
        mIsHiding = true;
    }

    @Override
    public void createCompactLayoutContent(InfoBarCompactLayout layout) {
        TextView prompt = new AccessibleTextView(getContext());

        Resources res = layout.getResources();
        prompt.setText(mMessageText);
        ApiCompatibilityUtils.setTextAppearance(prompt, R.style.TextAppearance_BlueLink1);
        prompt.setGravity(Gravity.CENTER_VERTICAL);
        prompt.setOnClickListener(this);

        ImageView iconView = layout.findViewById(R.id.infobar_icon);
        int iconMargin = res.getDimensionPixelSize(R.dimen.infobar_small_icon_margin);
        iconView.setPadding(iconMargin, 0, iconMargin, 0);

        iconView.setOnClickListener(this);
        iconView.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO);
        final int messagePadding =
                res.getDimensionPixelOffset(R.dimen.reader_mode_infobar_text_padding);
        prompt.setPadding(0, messagePadding, 0, messagePadding);
        layout.addContent(prompt, 1f);
    }

    /**
     * Triggers opening the app or add to home screen when the infobar's text or icon is clicked.
     */
    @Override
    public void onClick(View v) {
        if (getNativeInfoBarPtr() == 0 || mIsHiding) return;

        InstallableAmbientBadgeInfoBarJni.get().addToHomescreen(
                getNativeInfoBarPtr(), InstallableAmbientBadgeInfoBar.this);
    }

    /**
     * Creates the infobar.
     * @param iconDrawableId    Drawable ID corresponding to the icon that the infobar will show.
     * @param iconBitmap        Bitmap of the icon to display in the infobar.
     * @param messageText       String to display
     */
    private InstallableAmbientBadgeInfoBar(
            int iconDrawableId, Bitmap iconBitmap, String messageText, String url) {
        super(iconDrawableId, 0, null, iconBitmap);
        mMessageText = messageText;
        mUrl = url;
    }

    @NativeMethods
    interface Natives {
        void addToHomescreen(
                long nativeInstallableAmbientBadgeInfoBar, InstallableAmbientBadgeInfoBar caller);
    }
}