PagerSnapHelper.smali

.class public Landroidx/recyclerview/widget/PagerSnapHelper;
.super Landroidx/recyclerview/widget/SnapHelper;
.source "PagerSnapHelper.java"


# static fields
.field private static final MAX_SCROLL_ON_FLING_DURATION:I = 0x64


# instance fields
.field private mHorizontalHelper:Landroidx/recyclerview/widget/OrientationHelper;

.field private mVerticalHelper:Landroidx/recyclerview/widget/OrientationHelper;


# direct methods
.method public constructor <init>()V
    .registers 1

    .line 38
    invoke-direct {p0}, Landroidx/recyclerview/widget/SnapHelper;-><init>()V

    return-void
.end method

.method private distanceToCenter(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroid/view/View;Landroidx/recyclerview/widget/OrientationHelper;)I
    .registers 4

    .line 199
    invoke-virtual {p3, p2}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I

    move-result p1

    .line 200
    invoke-virtual {p3, p2}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedMeasurement(Landroid/view/View;)I

    move-result p2

    div-int/lit8 p2, p2, 0x2

    add-int/2addr p1, p2

    .line 201
    invoke-virtual {p3}, Landroidx/recyclerview/widget/OrientationHelper;->getStartAfterPadding()I

    move-result p2

    invoke-virtual {p3}, Landroidx/recyclerview/widget/OrientationHelper;->getTotalSpace()I

    move-result p3

    div-int/lit8 p3, p3, 0x2

    add-int/2addr p2, p3

    sub-int/2addr p1, p2

    return p1
.end method

.method private findCenterView(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;)Landroid/view/View;
    .registers 11

    .line 217
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getChildCount()I

    move-result v0

    const/4 v1, 0x0

    if-nez v0, :cond_8

    return-object v1

    .line 223
    :cond_8
    invoke-virtual {p2}, Landroidx/recyclerview/widget/OrientationHelper;->getStartAfterPadding()I

    move-result v2

    invoke-virtual {p2}, Landroidx/recyclerview/widget/OrientationHelper;->getTotalSpace()I

    move-result v3

    div-int/lit8 v3, v3, 0x2

    add-int/2addr v2, v3

    const v3, 0x7fffffff

    const/4 v4, 0x0

    :goto_17
    if-ge v4, v0, :cond_34

    .line 227
    invoke-virtual {p1, v4}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getChildAt(I)Landroid/view/View;

    move-result-object v5

    .line 228
    invoke-virtual {p2, v5}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I

    move-result v6

    .line 229
    invoke-virtual {p2, v5}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedMeasurement(Landroid/view/View;)I

    move-result v7

    div-int/lit8 v7, v7, 0x2

    add-int/2addr v6, v7

    sub-int/2addr v6, v2

    .line 230
    invoke-static {v6}, Ljava/lang/Math;->abs(I)I

    move-result v6

    if-ge v6, v3, :cond_31

    move-object v1, v5

    move v3, v6

    :cond_31
    add-int/lit8 v4, v4, 0x1

    goto :goto_17

    :cond_34
    return-object v1
.end method

.method private getHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;
    .registers 3

    .line 263
    iget-object v0, p0, Landroidx/recyclerview/widget/PagerSnapHelper;->mHorizontalHelper:Landroidx/recyclerview/widget/OrientationHelper;

    if-eqz v0, :cond_8

    iget-object v0, v0, Landroidx/recyclerview/widget/OrientationHelper;->mLayoutManager:Landroidx/recyclerview/widget/RecyclerView$LayoutManager;

    if-eq v0, p1, :cond_e

    .line 264
    :cond_8
    invoke-static {p1}, Landroidx/recyclerview/widget/OrientationHelper;->createHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;

    move-result-object p1

    iput-object p1, p0, Landroidx/recyclerview/widget/PagerSnapHelper;->mHorizontalHelper:Landroidx/recyclerview/widget/OrientationHelper;

    .line 266
    :cond_e
    iget-object p1, p0, Landroidx/recyclerview/widget/PagerSnapHelper;->mHorizontalHelper:Landroidx/recyclerview/widget/OrientationHelper;

    return-object p1
.end method

.method private getOrientationHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;
    .registers 3

    .line 243
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollVertically()Z

    move-result v0

    if-eqz v0, :cond_b

    .line 244
    invoke-direct {p0, p1}, Landroidx/recyclerview/widget/PagerSnapHelper;->getVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;

    move-result-object p1

    return-object p1

    .line 245
    :cond_b
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z

    move-result v0

    if-eqz v0, :cond_16

    .line 246
    invoke-direct {p0, p1}, Landroidx/recyclerview/widget/PagerSnapHelper;->getHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;

    move-result-object p1

    return-object p1

    :cond_16
    const/4 p1, 0x0

    return-object p1
.end method

.method private getVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;
    .registers 3

    .line 254
    iget-object v0, p0, Landroidx/recyclerview/widget/PagerSnapHelper;->mVerticalHelper:Landroidx/recyclerview/widget/OrientationHelper;

    if-eqz v0, :cond_8

    iget-object v0, v0, Landroidx/recyclerview/widget/OrientationHelper;->mLayoutManager:Landroidx/recyclerview/widget/RecyclerView$LayoutManager;

    if-eq v0, p1, :cond_e

    .line 255
    :cond_8
    invoke-static {p1}, Landroidx/recyclerview/widget/OrientationHelper;->createVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;

    move-result-object p1

    iput-object p1, p0, Landroidx/recyclerview/widget/PagerSnapHelper;->mVerticalHelper:Landroidx/recyclerview/widget/OrientationHelper;

    .line 257
    :cond_e
    iget-object p1, p0, Landroidx/recyclerview/widget/PagerSnapHelper;->mVerticalHelper:Landroidx/recyclerview/widget/OrientationHelper;

    return-object p1
.end method

.method private isForwardFling(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;II)Z
    .registers 6

    .line 147
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z

    move-result p1

    const/4 v0, 0x1

    const/4 v1, 0x0

    if-eqz p1, :cond_d

    if-lez p2, :cond_b

    goto :goto_c

    :cond_b
    move v0, v1

    :goto_c
    return v0

    :cond_d
    if-lez p3, :cond_10

    goto :goto_11

    :cond_10
    move v0, v1

    :goto_11
    return v0
.end method

.method private isReverseLayout(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Z
    .registers 6

    .line 155
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getItemCount()I

    move-result v0

    .line 156
    instance-of v1, p1, Landroidx/recyclerview/widget/RecyclerView$SmoothScroller$ScrollVectorProvider;

    const/4 v2, 0x0

    if-eqz v1, :cond_21

    .line 157
    check-cast p1, Landroidx/recyclerview/widget/RecyclerView$SmoothScroller$ScrollVectorProvider;

    const/4 v1, 0x1

    sub-int/2addr v0, v1

    .line 159
    invoke-interface {p1, v0}, Landroidx/recyclerview/widget/RecyclerView$SmoothScroller$ScrollVectorProvider;->computeScrollVectorForPosition(I)Landroid/graphics/PointF;

    move-result-object p1

    if-eqz p1, :cond_21

    .line 161
    iget v0, p1, Landroid/graphics/PointF;->x:F

    const/4 v3, 0x0

    cmpg-float v0, v0, v3

    if-ltz v0, :cond_20

    iget p1, p1, Landroid/graphics/PointF;->y:F

    cmpg-float p1, p1, v3

    if-gez p1, :cond_21

    :cond_20
    move v2, v1

    :cond_21
    return v2
.end method


# virtual methods
.method public calculateDistanceToFinalSnap(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroid/view/View;)[I
    .registers 7

    const/4 v0, 0x2

    new-array v0, v0, [I

    .line 52
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z

    move-result v1

    const/4 v2, 0x0

    if-eqz v1, :cond_15

    .line 54
    invoke-direct {p0, p1}, Landroidx/recyclerview/widget/PagerSnapHelper;->getHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;

    move-result-object v1

    .line 53
    invoke-direct {p0, p1, p2, v1}, Landroidx/recyclerview/widget/PagerSnapHelper;->distanceToCenter(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroid/view/View;Landroidx/recyclerview/widget/OrientationHelper;)I

    move-result v1

    aput v1, v0, v2

    goto :goto_17

    :cond_15
    aput v2, v0, v2

    .line 59
    :goto_17
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollVertically()Z

    move-result v1

    const/4 v3, 0x1

    if-eqz v1, :cond_29

    .line 61
    invoke-direct {p0, p1}, Landroidx/recyclerview/widget/PagerSnapHelper;->getVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;

    move-result-object v1

    .line 60
    invoke-direct {p0, p1, p2, v1}, Landroidx/recyclerview/widget/PagerSnapHelper;->distanceToCenter(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroid/view/View;Landroidx/recyclerview/widget/OrientationHelper;)I

    move-result p1

    aput p1, v0, v3

    goto :goto_2b

    :cond_29
    aput v2, v0, v3

    :goto_2b
    return-object v0
.end method

.method protected createSnapScroller(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/LinearSmoothScroller;
    .registers 3

    .line 169
    instance-of p1, p1, Landroidx/recyclerview/widget/RecyclerView$SmoothScroller$ScrollVectorProvider;

    if-nez p1, :cond_6

    const/4 p1, 0x0

    return-object p1

    .line 172
    :cond_6
    new-instance p1, Landroidx/recyclerview/widget/PagerSnapHelper$1;

    iget-object v0, p0, Landroidx/recyclerview/widget/PagerSnapHelper;->mRecyclerView:Landroidx/recyclerview/widget/RecyclerView;

    invoke-virtual {v0}, Landroidx/recyclerview/widget/RecyclerView;->getContext()Landroid/content/Context;

    move-result-object v0

    invoke-direct {p1, p0, v0}, Landroidx/recyclerview/widget/PagerSnapHelper$1;-><init>(Landroidx/recyclerview/widget/PagerSnapHelper;Landroid/content/Context;)V

    return-object p1
.end method

.method public findSnapView(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroid/view/View;
    .registers 3

    .line 71
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollVertically()Z

    move-result v0

    if-eqz v0, :cond_f

    .line 72
    invoke-direct {p0, p1}, Landroidx/recyclerview/widget/PagerSnapHelper;->getVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;

    move-result-object v0

    invoke-direct {p0, p1, v0}, Landroidx/recyclerview/widget/PagerSnapHelper;->findCenterView(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;)Landroid/view/View;

    move-result-object p1

    return-object p1

    .line 73
    :cond_f
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z

    move-result v0

    if-eqz v0, :cond_1e

    .line 74
    invoke-direct {p0, p1}, Landroidx/recyclerview/widget/PagerSnapHelper;->getHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;

    move-result-object v0

    invoke-direct {p0, p1, v0}, Landroidx/recyclerview/widget/PagerSnapHelper;->findCenterView(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;)Landroid/view/View;

    move-result-object p1

    return-object p1

    :cond_1e
    const/4 p1, 0x0

    return-object p1
.end method

.method public findTargetSnapPosition(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;II)I
    .registers 15

    .line 82
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getItemCount()I

    move-result v0

    const/4 v1, -0x1

    if-nez v0, :cond_8

    return v1

    .line 87
    :cond_8
    invoke-direct {p0, p1}, Landroidx/recyclerview/widget/PagerSnapHelper;->getOrientationHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;

    move-result-object v2

    if-nez v2, :cond_f

    return v1

    :cond_f
    const/high16 v3, -0x80000000

    const v4, 0x7fffffff

    .line 99
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getChildCount()I

    move-result v5

    const/4 v6, 0x0

    const/4 v7, 0x0

    move-object v8, v7

    :goto_1b
    if-ge v6, v5, :cond_37

    .line 101
    invoke-virtual {p1, v6}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getChildAt(I)Landroid/view/View;

    move-result-object v9

    if-nez v9, :cond_24

    goto :goto_34

    .line 105
    :cond_24
    invoke-direct {p0, p1, v9, v2}, Landroidx/recyclerview/widget/PagerSnapHelper;->distanceToCenter(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroid/view/View;Landroidx/recyclerview/widget/OrientationHelper;)I

    move-result v10

    if-gtz v10, :cond_2e

    if-le v10, v3, :cond_2e

    move-object v8, v9

    move v3, v10

    :cond_2e
    if-ltz v10, :cond_34

    if-ge v10, v4, :cond_34

    move-object v7, v9

    move v4, v10

    :cond_34
    :goto_34
    add-int/lit8 v6, v6, 0x1

    goto :goto_1b

    .line 120
    :cond_37
    invoke-direct {p0, p1, p2, p3}, Landroidx/recyclerview/widget/PagerSnapHelper;->isForwardFling(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;II)Z

    move-result p2

    if-eqz p2, :cond_44

    if-eqz v7, :cond_44

    .line 122
    invoke-virtual {p1, v7}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getPosition(Landroid/view/View;)I

    move-result p1

    return p1

    :cond_44
    if-nez p2, :cond_4d

    if-eqz v8, :cond_4d

    .line 124
    invoke-virtual {p1, v8}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getPosition(Landroid/view/View;)I

    move-result p1

    return p1

    :cond_4d
    if-eqz p2, :cond_50

    move-object v7, v8

    :cond_50
    if-nez v7, :cond_53

    return v1

    .line 135
    :cond_53
    invoke-virtual {p1, v7}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getPosition(Landroid/view/View;)I

    move-result p3

    .line 137
    invoke-direct {p0, p1}, Landroidx/recyclerview/widget/PagerSnapHelper;->isReverseLayout(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Z

    move-result p1

    if-ne p1, p2, :cond_5f

    move p1, v1

    goto :goto_60

    :cond_5f
    const/4 p1, 0x1

    :goto_60
    add-int/2addr p3, p1

    if-ltz p3, :cond_67

    if-lt p3, v0, :cond_66

    goto :goto_67

    :cond_66
    return p3

    :cond_67
    :goto_67
    return v1
.end method