org.chromium.chrome.browser.ntp.snippets.SnippetsConfig Java Examples

/**
 * Updates the peeking state of the provided card. Relies on the dimensions of the header to
 * be correct, prefer {@link #updatePeekingCardAndHeader} that updates both together.
 */
public void updatePeekingCard(CardViewHolder peekingCard) {
    SectionHeaderViewHolder header = findFirstHeader();
    if (header == null) {
        // No header, we must have scrolled quite far. Fallback to a non animated (full bleed)
        // card.
        peekingCard.updatePeek(0, /* shouldAnimate */ false);
        return;
    }

    // Peeking is disabled in the card offset field trial and the increased visibility feature.
    if (CardsVariationParameters.getFirstCardOffsetDp() != 0
            || SnippetsConfig.isIncreasedCardVisibilityEnabled()) {
        peekingCard.updatePeek(0, /* shouldAnimate */ false);
        return;
    }

    // Here we consider that if the header is animating (is not completely expanded), the card
    // should as well. In that case, the space below the header is what we have available.
    boolean shouldAnimate = header.itemView.getHeight() < mMaxHeaderHeight;
    peekingCard.updatePeek(getHeight() - header.itemView.getBottom(), shouldAnimate);
}
 

/**
 * To be triggered when a snippet is bound to a ViewHolder.
 */
public void onSnippetBound(View cardView) {
    // We only run if the feature is enabled and once per NTP.
    if (!SnippetsConfig.isIncreasedCardVisibilityEnabled() || mFirstCardAnimationRun) return;
    mFirstCardAnimationRun = true;

    // We only want an animation to run if we are not scrolled.
    if (computeVerticalScrollOffset() != 0) return;

    // We only show the animation a certain number of times to a user.
    ChromePreferenceManager manager = ChromePreferenceManager.getInstance(getContext());
    int animCount = manager.getNewTabPageFirstCardAnimationRunCount();
    if (animCount > CardsVariationParameters.getFirstCardAnimationMaxRuns()) return;
    manager.setNewTabPageFirstCardAnimationRunCount(animCount + 1);

    // We do not show the animation if the user has previously seen it then scrolled.
    if (manager.getCardsImpressionAfterAnimation()) return;

    // The peeking card bounces up twice from its position.
    ObjectAnimator animator = ObjectAnimator.ofFloat(cardView, View.TRANSLATION_Y,
            0f, -mPeekingCardBounceDistance, 0f, -mPeekingCardBounceDistance, 0f);
    animator.setStartDelay(PEEKING_CARD_ANIMATION_START_DELAY_MS);
    animator.setDuration(PEEKING_CARD_ANIMATION_TIME_MS);
    animator.setInterpolator(PEEKING_CARD_INTERPOLATOR);
    animator.start();
}
 

/**
 * Constructor for inflating from XML.
 */
public NewTabPageLayout(Context context, AttributeSet attrs) {
    super(context, attrs);
    Resources res = getResources();
    float density = res.getDisplayMetrics().density;
    mTopSpacerIdealHeight = Math.round(density * TOP_SPACER_HEIGHT_DP);
    mMiddleSpacerIdealHeight = Math.round(density * MIDDLE_SPACER_HEIGHT_DP);
    mBottomSpacerIdealHeight = Math.round(density * BOTTOM_SPACER_HEIGHT_DP);
    mTotalSpacerIdealHeight = Math.round(density * TOTAL_SPACER_HEIGHT_DP);
    mMostVisitedLayoutBleed = res.getDimensionPixelSize(R.dimen.most_visited_layout_bleed);
    mPeekingCardHeight = SnippetsConfig.isIncreasedCardVisibilityEnabled()
            ? res.getDimensionPixelSize(R.dimen.snippets_peeking_card_peek_amount)
            : res.getDimensionPixelSize(R.dimen.snippets_padding);
    mTabStripHeight = res.getDimensionPixelSize(R.dimen.tab_strip_height);
    mFieldTrialLayoutAdjustment = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
            CardsVariationParameters.getFirstCardOffsetDp(), res.getDisplayMetrics());
    mSearchboxShadowWidth = res.getDimensionPixelOffset(R.dimen.ntp_search_box_shadow_width);
}
 

/**
 * Constructor for inflating from XML.
 */
public NewTabPageLayout(Context context, AttributeSet attrs) {
    super(context, attrs);
    Resources res = getResources();
    float density = res.getDisplayMetrics().density;
    mTopSpacerIdealHeight = Math.round(density * TOP_SPACER_HEIGHT_DP);
    mMiddleSpacerIdealHeight = Math.round(density * MIDDLE_SPACER_HEIGHT_DP);
    mBottomSpacerIdealHeight = Math.round(density * BOTTOM_SPACER_HEIGHT_DP);
    mTotalSpacerIdealHeight = Math.round(density * TOTAL_SPACER_HEIGHT_DP);
    mTileGridLayoutBleed = res.getDimensionPixelSize(R.dimen.tile_grid_layout_bleed);
    mPeekingCardHeight = SnippetsConfig.isIncreasedCardVisibilityEnabled()
            ? res.getDimensionPixelSize(R.dimen.snippets_peeking_card_peek_amount)
            : res.getDimensionPixelSize(R.dimen.snippets_padding);
    mTabStripHeight = res.getDimensionPixelSize(R.dimen.tab_strip_height);
    mFieldTrialLayoutAdjustment = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
            CardsVariationParameters.getFirstCardOffsetDp(), res.getDisplayMetrics());
    mSearchboxShadowWidth = res.getDimensionPixelOffset(R.dimen.ntp_search_box_shadow_width);
}
 

private boolean shouldAnimateFirstCard() {
    // The "bouncing" animation for the first card is only enabled if
    // 1) there is space for it, ...
    if (!mHasSpaceForPeekingCard) return false;

    // ... 2) the corresponding feature is enabled, ...
    if (!SnippetsConfig.isIncreasedCardVisibilityEnabled()) return false;

    // ... 3) and the animation hasn't run yet.
    return !mFirstCardAnimationRun;
}
 

private boolean shouldPeekFirstCard() {
    // Peeking above the fold is only enabled if there is space.
    if (!mHasSpaceForPeekingCard) return false;

    // It's also disabled in the card offset field trial...
    if (CardsVariationParameters.getFirstCardOffsetDp() > 0) return false;

    // ...and in the increased visibility (bouncing animation) feature.
    return !SnippetsConfig.isIncreasedCardVisibilityEnabled();
}
 

public static boolean shouldUseMaterialColors() {
    return SnippetsConfig.isEnabled()
            || ChromeFeatureList.isEnabled(ChromeFeatureList.NTP_MATERIAL_DESIGN);
}
 

/** @return whether the NTP is using the cards UI. */
public boolean isCardsUiEnabled() {
    return SnippetsConfig.isEnabled();
}
 

@Override
public boolean isDismissable() {
    return SnippetsConfig.isSectionDismissalEnabled();
}
 

@Override
public boolean isDismissable() {
    return SnippetsConfig.isSectionDismissalEnabled()
            && !mActionListItem.mParentSection.hasSuggestions();
}
 

/** @return whether the NTP is using the cards UI. */
public boolean isCardsUiEnabled() {
    return SnippetsConfig.isEnabled();
}