LinearSnapHelper.smali

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


# static fields
.field private static final INVALID_DISTANCE:F = 1.0f


# 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 33
    invoke-direct {p0}, Landroidx/recyclerview/widget/SnapHelper;-><init>()V

    return-void
.end method

.method private computeDistancePerChild(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;)F
    .registers 13

    .line 227
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getChildCount()I

    move-result v0

    const/high16 v1, 0x3f800000    # 1.0f

    if-nez v0, :cond_9

    return v1

    :cond_9
    const/4 v2, 0x0

    const/4 v3, 0x0

    const v4, 0x7fffffff

    const/high16 v5, -0x80000000

    move v6, v5

    move v5, v4

    move-object v4, v3

    :goto_13
    if-ge v2, v0, :cond_2c

    .line 233
    invoke-virtual {p1, v2}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getChildAt(I)Landroid/view/View;

    move-result-object v7

    .line 234
    invoke-virtual {p1, v7}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getPosition(Landroid/view/View;)I

    move-result v8

    const/4 v9, -0x1

    if-ne v8, v9, :cond_21

    goto :goto_29

    :cond_21
    if-ge v8, v5, :cond_25

    move-object v3, v7

    move v5, v8

    :cond_25
    if-le v8, v6, :cond_29

    move-object v4, v7

    move v6, v8

    :cond_29
    :goto_29
    add-int/lit8 v2, v2, 0x1

    goto :goto_13

    :cond_2c
    if-eqz v3, :cond_55

    if-nez v4, :cond_31

    goto :goto_55

    .line 250
    :cond_31
    invoke-virtual {p2, v3}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I

    move-result p1

    .line 251
    invoke-virtual {p2, v4}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I

    move-result v0

    .line 250
    invoke-static {p1, v0}, Ljava/lang/Math;->min(II)I

    move-result p1

    .line 252
    invoke-virtual {p2, v3}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedEnd(Landroid/view/View;)I

    move-result v0

    .line 253
    invoke-virtual {p2, v4}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedEnd(Landroid/view/View;)I

    move-result p2

    .line 252
    invoke-static {v0, p2}, Ljava/lang/Math;->max(II)I

    move-result p2

    sub-int/2addr p2, p1

    if-nez p2, :cond_4d

    return v1

    :cond_4d
    int-to-float p1, p2

    mul-float/2addr p1, v1

    sub-int/2addr v6, v5

    add-int/lit8 v6, v6, 0x1

    int-to-float p2, v6

    div-float/2addr p1, p2

    return p1

    :cond_55
    :goto_55
    return v1
.end method

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

    .line 143
    invoke-virtual {p3, p2}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I

    move-result p1

    .line 144
    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 145
    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 estimateNextPositionDiffForFling(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;II)I
    .registers 7

    .line 162
    invoke-virtual {p0, p3, p4}, Landroidx/recyclerview/widget/LinearSnapHelper;->calculateScrollDistance(II)[I

    move-result-object p3

    .line 163
    invoke-direct {p0, p1, p2}, Landroidx/recyclerview/widget/LinearSnapHelper;->computeDistancePerChild(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;)F

    move-result p1

    const/4 p2, 0x0

    cmpg-float p2, p1, p2

    const/4 p4, 0x0

    if-gtz p2, :cond_f

    return p4

    .line 167
    :cond_f
    aget p2, p3, p4

    .line 168
    invoke-static {p2}, Ljava/lang/Math;->abs(I)I

    move-result p2

    const/4 v0, 0x1

    aget v1, p3, v0

    invoke-static {v1}, Ljava/lang/Math;->abs(I)I

    move-result v1

    if-le p2, v1, :cond_21

    aget p2, p3, p4

    goto :goto_23

    :cond_21
    aget p2, p3, v0

    :goto_23
    int-to-float p2, p2

    div-float/2addr p2, p1

    .line 169
    invoke-static {p2}, Ljava/lang/Math;->round(F)I

    move-result p1

    return p1
.end method

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

    .line 184
    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 190
    :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 194
    invoke-virtual {p1, v4}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getChildAt(I)Landroid/view/View;

    move-result-object v5

    .line 195
    invoke-virtual {p2, v5}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I

    move-result v6

    .line 196
    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 197
    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 272
    iget-object v0, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->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 273
    :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/LinearSnapHelper;->mHorizontalHelper:Landroidx/recyclerview/widget/OrientationHelper;

    .line 275
    :cond_e
    iget-object p1, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->mHorizontalHelper:Landroidx/recyclerview/widget/OrientationHelper;

    return-object p1
.end method

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

    .line 263
    iget-object v0, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->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 264
    :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/LinearSnapHelper;->mVerticalHelper:Landroidx/recyclerview/widget/OrientationHelper;

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

    return-object p1
.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 47
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z

    move-result v1

    const/4 v2, 0x0

    if-eqz v1, :cond_15

    .line 49
    invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;

    move-result-object v1

    .line 48
    invoke-direct {p0, p1, p2, v1}, Landroidx/recyclerview/widget/LinearSnapHelper;->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 54
    :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 56
    invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;

    move-result-object v1

    .line 55
    invoke-direct {p0, p1, p2, v1}, Landroidx/recyclerview/widget/LinearSnapHelper;->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 public findSnapView(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroid/view/View;
    .registers 3

    .line 133
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollVertically()Z

    move-result v0

    if-eqz v0, :cond_f

    .line 134
    invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;

    move-result-object v0

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

    move-result-object p1

    return-object p1

    .line 135
    :cond_f
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z

    move-result v0

    if-eqz v0, :cond_1e

    .line 136
    invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;

    move-result-object v0

    invoke-direct {p0, p1, v0}, Landroidx/recyclerview/widget/LinearSnapHelper;->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 12

    .line 66
    instance-of v0, p1, Landroidx/recyclerview/widget/RecyclerView$SmoothScroller$ScrollVectorProvider;

    const/4 v1, -0x1

    if-nez v0, :cond_6

    return v1

    .line 70
    :cond_6
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getItemCount()I

    move-result v0

    if-nez v0, :cond_d

    return v1

    .line 75
    :cond_d
    invoke-virtual {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->findSnapView(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroid/view/View;

    move-result-object v2

    if-nez v2, :cond_14

    return v1

    .line 80
    :cond_14
    invoke-virtual {p1, v2}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getPosition(Landroid/view/View;)I

    move-result v2

    if-ne v2, v1, :cond_1b

    return v1

    .line 85
    :cond_1b
    move-object v3, p1

    check-cast v3, Landroidx/recyclerview/widget/RecyclerView$SmoothScroller$ScrollVectorProvider;

    add-int/lit8 v4, v0, -0x1

    .line 90
    invoke-interface {v3, v4}, Landroidx/recyclerview/widget/RecyclerView$SmoothScroller$ScrollVectorProvider;->computeScrollVectorForPosition(I)Landroid/graphics/PointF;

    move-result-object v3

    if-nez v3, :cond_27

    return v1

    .line 97
    :cond_27
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z

    move-result v5

    const/4 v6, 0x0

    const/4 v7, 0x0

    if-eqz v5, :cond_3f

    .line 99
    invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;

    move-result-object v5

    .line 98
    invoke-direct {p0, p1, v5, p2, v7}, Landroidx/recyclerview/widget/LinearSnapHelper;->estimateNextPositionDiffForFling(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;II)I

    move-result p2

    .line 100
    iget v5, v3, Landroid/graphics/PointF;->x:F

    cmpg-float v5, v5, v6

    if-gez v5, :cond_40

    neg-int p2, p2

    goto :goto_40

    :cond_3f
    move p2, v7

    .line 106
    :cond_40
    :goto_40
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollVertically()Z

    move-result v5

    if-eqz v5, :cond_56

    .line 108
    invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;

    move-result-object v5

    .line 107
    invoke-direct {p0, p1, v5, v7, p3}, Landroidx/recyclerview/widget/LinearSnapHelper;->estimateNextPositionDiffForFling(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;II)I

    move-result p3

    .line 109
    iget v3, v3, Landroid/graphics/PointF;->y:F

    cmpg-float v3, v3, v6

    if-gez v3, :cond_57

    neg-int p3, p3

    goto :goto_57

    :cond_56
    move p3, v7

    .line 116
    :cond_57
    :goto_57
    invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollVertically()Z

    move-result p1

    if-eqz p1, :cond_5e

    move p2, p3

    :cond_5e
    if-nez p2, :cond_61

    return v1

    :cond_61
    add-int/2addr v2, p2

    if-gez v2, :cond_65

    goto :goto_66

    :cond_65
    move v7, v2

    :goto_66
    if-lt v7, v0, :cond_69

    goto :goto_6a

    :cond_69
    move v4, v7

    :goto_6a
    return v4
.end method