LinearSnapHelper.smali

.class public Landroid/support/v7/widget/LinearSnapHelper;
.super Landroid/support/v7/widget/SnapHelper;
.source "LinearSnapHelper.java"


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


# instance fields
.field private mHorizontalHelper:Landroid/support/v7/widget/OrientationHelper;
    .annotation build Landroid/support/annotation/Nullable;
    .end annotation
.end field

.field private mVerticalHelper:Landroid/support/v7/widget/OrientationHelper;
    .annotation build Landroid/support/annotation/Nullable;
    .end annotation
.end field


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

    .prologue
    .line 32
    invoke-direct {p0}, Landroid/support/v7/widget/SnapHelper;-><init>()V

    return-void
.end method

.method private computeDistancePerChild(Landroid/support/v7/widget/RecyclerView$LayoutManager;Landroid/support/v7/widget/OrientationHelper;)F
    .registers 13

    .prologue
    const/4 v3, 0x0

    const/high16 v6, 0x3f800000    # 1.0f

    .line 232
    .line 234
    const v2, 0x7fffffff

    .line 235
    const/high16 v1, -0x80000000

    .line 236
    invoke-virtual {p1}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->getChildCount()I

    move-result v8

    .line 237
    if-nez v8, :cond_10

    move v0, v6

    .line 267
    :goto_f
    return v0

    .line 241
    :cond_10
    const/4 v0, 0x0

    move v7, v0

    move-object v5, v3

    move v0, v1

    :goto_14
    if-ge v7, v8, :cond_36

    .line 242
    invoke-virtual {p1, v7}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->getChildAt(I)Landroid/view/View;

    move-result-object v4

    .line 243
    invoke-virtual {p1, v4}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->getPosition(Landroid/view/View;)I

    move-result v1

    .line 244
    const/4 v9, -0x1

    if-ne v1, v9, :cond_2b

    move v1, v2

    move-object v2, v3

    move-object v3, v5

    .line 241
    :goto_24
    add-int/lit8 v4, v7, 0x1

    move v7, v4

    move-object v5, v3

    move-object v3, v2

    move v2, v1

    goto :goto_14

    .line 247
    :cond_2b
    if-ge v1, v2, :cond_2f

    move v2, v1

    move-object v5, v4

    .line 251
    :cond_2f
    if-le v1, v0, :cond_63

    move v0, v1

    move-object v3, v5

    move v1, v2

    move-object v2, v4

    .line 253
    goto :goto_24

    .line 256
    :cond_36
    if-eqz v5, :cond_3a

    if-nez v3, :cond_3c

    :cond_3a
    move v0, v6

    .line 257
    goto :goto_f

    .line 259
    :cond_3c
    invoke-virtual {p2, v5}, Landroid/support/v7/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I

    move-result v1

    .line 260
    invoke-virtual {p2, v3}, Landroid/support/v7/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I

    move-result v4

    .line 259
    invoke-static {v1, v4}, Ljava/lang/Math;->min(II)I

    move-result v1

    .line 261
    invoke-virtual {p2, v5}, Landroid/support/v7/widget/OrientationHelper;->getDecoratedEnd(Landroid/view/View;)I

    move-result v4

    .line 262
    invoke-virtual {p2, v3}, Landroid/support/v7/widget/OrientationHelper;->getDecoratedEnd(Landroid/view/View;)I

    move-result v3

    .line 261
    invoke-static {v4, v3}, Ljava/lang/Math;->max(II)I

    move-result v3

    .line 263
    sub-int v1, v3, v1

    .line 264
    if-nez v1, :cond_5a

    move v0, v6

    .line 265
    goto :goto_f

    .line 267
    :cond_5a
    int-to-float v1, v1

    mul-float/2addr v1, v6

    sub-int/2addr v0, v2

    add-int/lit8 v0, v0, 0x1

    int-to-float v0, v0

    div-float v0, v1, v0

    goto :goto_f

    :cond_63
    move v1, v2

    move-object v2, v3

    move-object v3, v5

    goto :goto_24
.end method

.method private distanceToCenter(Landroid/support/v7/widget/RecyclerView$LayoutManager;Landroid/view/View;Landroid/support/v7/widget/OrientationHelper;)I
    .registers 7
    .param p1    # Landroid/support/v7/widget/RecyclerView$LayoutManager;
        .annotation build Landroid/support/annotation/NonNull;
        .end annotation
    .end param
    .param p2    # Landroid/view/View;
        .annotation build Landroid/support/annotation/NonNull;
        .end annotation
    .end param

    .prologue
    .line 142
    invoke-virtual {p3, p2}, Landroid/support/v7/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I

    move-result v0

    .line 143
    invoke-virtual {p3, p2}, Landroid/support/v7/widget/OrientationHelper;->getDecoratedMeasurement(Landroid/view/View;)I

    move-result v1

    div-int/lit8 v1, v1, 0x2

    add-int/2addr v1, v0

    .line 145
    invoke-virtual {p1}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->getClipToPadding()Z

    move-result v0

    if-eqz v0, :cond_1f

    .line 146
    invoke-virtual {p3}, Landroid/support/v7/widget/OrientationHelper;->getStartAfterPadding()I

    move-result v0

    invoke-virtual {p3}, Landroid/support/v7/widget/OrientationHelper;->getTotalSpace()I

    move-result v2

    div-int/lit8 v2, v2, 0x2

    add-int/2addr v0, v2

    .line 150
    :goto_1c
    sub-int v0, v1, v0

    return v0

    .line 148
    :cond_1f
    invoke-virtual {p3}, Landroid/support/v7/widget/OrientationHelper;->getEnd()I

    move-result v0

    div-int/lit8 v0, v0, 0x2

    goto :goto_1c
.end method

.method private estimateNextPositionDiffForFling(Landroid/support/v7/widget/RecyclerView$LayoutManager;Landroid/support/v7/widget/OrientationHelper;II)I
    .registers 11

    .prologue
    const/4 v5, 0x1

    const/4 v0, 0x0

    .line 166
    invoke-virtual {p0, p3, p4}, Landroid/support/v7/widget/LinearSnapHelper;->calculateScrollDistance(II)[I

    move-result-object v1

    .line 167
    invoke-direct {p0, p1, p2}, Landroid/support/v7/widget/LinearSnapHelper;->computeDistancePerChild(Landroid/support/v7/widget/RecyclerView$LayoutManager;Landroid/support/v7/widget/OrientationHelper;)F

    move-result v2

    .line 168
    const/4 v3, 0x0

    cmpg-float v3, v2, v3

    if-gtz v3, :cond_10

    .line 173
    :goto_f
    return v0

    .line 171
    :cond_10
    aget v3, v1, v0

    .line 172
    invoke-static {v3}, Ljava/lang/Math;->abs(I)I

    move-result v3

    aget v4, v1, v5

    invoke-static {v4}, Ljava/lang/Math;->abs(I)I

    move-result v4

    if-le v3, v4, :cond_27

    aget v0, v1, v0

    .line 173
    :goto_20
    int-to-float v0, v0

    div-float/2addr v0, v2

    invoke-static {v0}, Ljava/lang/Math;->round(F)I

    move-result v0

    goto :goto_f

    .line 172
    :cond_27
    aget v0, v1, v5

    goto :goto_20
.end method

.method private findCenterView(Landroid/support/v7/widget/RecyclerView$LayoutManager;Landroid/support/v7/widget/OrientationHelper;)Landroid/view/View;
    .registers 11
    .annotation build Landroid/support/annotation/Nullable;
    .end annotation

    .prologue
    const/4 v4, 0x0

    .line 188
    invoke-virtual {p1}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->getChildCount()I

    move-result v6

    .line 189
    if-nez v6, :cond_8

    .line 214
    :cond_7
    return-object v4

    .line 195
    :cond_8
    invoke-virtual {p1}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->getClipToPadding()Z

    move-result v0

    if-eqz v0, :cond_3d

    .line 196
    invoke-virtual {p2}, Landroid/support/v7/widget/OrientationHelper;->getStartAfterPadding()I

    move-result v0

    invoke-virtual {p2}, Landroid/support/v7/widget/OrientationHelper;->getTotalSpace()I

    move-result v1

    div-int/lit8 v1, v1, 0x2

    add-int/2addr v0, v1

    .line 200
    :goto_19
    const v2, 0x7fffffff

    .line 202
    const/4 v1, 0x0

    move v5, v1

    :goto_1e
    if-ge v5, v6, :cond_7

    .line 203
    invoke-virtual {p1, v5}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->getChildAt(I)Landroid/view/View;

    move-result-object v3

    .line 204
    invoke-virtual {p2, v3}, Landroid/support/v7/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I

    move-result v1

    .line 205
    invoke-virtual {p2, v3}, Landroid/support/v7/widget/OrientationHelper;->getDecoratedMeasurement(Landroid/view/View;)I

    move-result v7

    div-int/lit8 v7, v7, 0x2

    add-int/2addr v1, v7

    .line 206
    sub-int/2addr v1, v0

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

    move-result v1

    .line 209
    if-ge v1, v2, :cond_44

    move-object v2, v3

    .line 202
    :goto_37
    add-int/lit8 v3, v5, 0x1

    move v5, v3

    move-object v4, v2

    move v2, v1

    goto :goto_1e

    .line 198
    :cond_3d
    invoke-virtual {p2}, Landroid/support/v7/widget/OrientationHelper;->getEnd()I

    move-result v0

    div-int/lit8 v0, v0, 0x2

    goto :goto_19

    :cond_44
    move v1, v2

    move-object v2, v4

    goto :goto_37
.end method

.method private getHorizontalHelper(Landroid/support/v7/widget/RecyclerView$LayoutManager;)Landroid/support/v7/widget/OrientationHelper;
    .registers 3
    .param p1    # Landroid/support/v7/widget/RecyclerView$LayoutManager;
        .annotation build Landroid/support/annotation/NonNull;
        .end annotation
    .end param
    .annotation build Landroid/support/annotation/NonNull;
    .end annotation

    .prologue
    .line 281
    iget-object v0, p0, Landroid/support/v7/widget/LinearSnapHelper;->mHorizontalHelper:Landroid/support/v7/widget/OrientationHelper;

    if-eqz v0, :cond_a

    iget-object v0, p0, Landroid/support/v7/widget/LinearSnapHelper;->mHorizontalHelper:Landroid/support/v7/widget/OrientationHelper;

    iget-object v0, v0, Landroid/support/v7/widget/OrientationHelper;->mLayoutManager:Landroid/support/v7/widget/RecyclerView$LayoutManager;

    if-eq v0, p1, :cond_10

    .line 282
    :cond_a
    invoke-static {p1}, Landroid/support/v7/widget/OrientationHelper;->createHorizontalHelper(Landroid/support/v7/widget/RecyclerView$LayoutManager;)Landroid/support/v7/widget/OrientationHelper;

    move-result-object v0

    iput-object v0, p0, Landroid/support/v7/widget/LinearSnapHelper;->mHorizontalHelper:Landroid/support/v7/widget/OrientationHelper;

    .line 284
    :cond_10
    iget-object v0, p0, Landroid/support/v7/widget/LinearSnapHelper;->mHorizontalHelper:Landroid/support/v7/widget/OrientationHelper;

    return-object v0
.end method

.method private getVerticalHelper(Landroid/support/v7/widget/RecyclerView$LayoutManager;)Landroid/support/v7/widget/OrientationHelper;
    .registers 3
    .param p1    # Landroid/support/v7/widget/RecyclerView$LayoutManager;
        .annotation build Landroid/support/annotation/NonNull;
        .end annotation
    .end param
    .annotation build Landroid/support/annotation/NonNull;
    .end annotation

    .prologue
    .line 272
    iget-object v0, p0, Landroid/support/v7/widget/LinearSnapHelper;->mVerticalHelper:Landroid/support/v7/widget/OrientationHelper;

    if-eqz v0, :cond_a

    iget-object v0, p0, Landroid/support/v7/widget/LinearSnapHelper;->mVerticalHelper:Landroid/support/v7/widget/OrientationHelper;

    iget-object v0, v0, Landroid/support/v7/widget/OrientationHelper;->mLayoutManager:Landroid/support/v7/widget/RecyclerView$LayoutManager;

    if-eq v0, p1, :cond_10

    .line 273
    :cond_a
    invoke-static {p1}, Landroid/support/v7/widget/OrientationHelper;->createVerticalHelper(Landroid/support/v7/widget/RecyclerView$LayoutManager;)Landroid/support/v7/widget/OrientationHelper;

    move-result-object v0

    iput-object v0, p0, Landroid/support/v7/widget/LinearSnapHelper;->mVerticalHelper:Landroid/support/v7/widget/OrientationHelper;

    .line 275
    :cond_10
    iget-object v0, p0, Landroid/support/v7/widget/LinearSnapHelper;->mVerticalHelper:Landroid/support/v7/widget/OrientationHelper;

    return-object v0
.end method


# virtual methods
.method public calculateDistanceToFinalSnap(Landroid/support/v7/widget/RecyclerView$LayoutManager;Landroid/view/View;)[I
    .registers 7
    .param p1    # Landroid/support/v7/widget/RecyclerView$LayoutManager;
        .annotation build Landroid/support/annotation/NonNull;
        .end annotation
    .end param
    .param p2    # Landroid/view/View;
        .annotation build Landroid/support/annotation/NonNull;
        .end annotation
    .end param

    .prologue
    const/4 v3, 0x1

    const/4 v2, 0x0

    .line 45
    const/4 v0, 0x2

    new-array v0, v0, [I

    .line 46
    invoke-virtual {p1}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z

    move-result v1

    if-eqz v1, :cond_26

    .line 48
    invoke-direct {p0, p1}, Landroid/support/v7/widget/LinearSnapHelper;->getHorizontalHelper(Landroid/support/v7/widget/RecyclerView$LayoutManager;)Landroid/support/v7/widget/OrientationHelper;

    move-result-object v1

    .line 47
    invoke-direct {p0, p1, p2, v1}, Landroid/support/v7/widget/LinearSnapHelper;->distanceToCenter(Landroid/support/v7/widget/RecyclerView$LayoutManager;Landroid/view/View;Landroid/support/v7/widget/OrientationHelper;)I

    move-result v1

    aput v1, v0, v2

    .line 53
    :goto_15
    invoke-virtual {p1}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->canScrollVertically()Z

    move-result v1

    if-eqz v1, :cond_29

    .line 55
    invoke-direct {p0, p1}, Landroid/support/v7/widget/LinearSnapHelper;->getVerticalHelper(Landroid/support/v7/widget/RecyclerView$LayoutManager;)Landroid/support/v7/widget/OrientationHelper;

    move-result-object v1

    .line 54
    invoke-direct {p0, p1, p2, v1}, Landroid/support/v7/widget/LinearSnapHelper;->distanceToCenter(Landroid/support/v7/widget/RecyclerView$LayoutManager;Landroid/view/View;Landroid/support/v7/widget/OrientationHelper;)I

    move-result v1

    aput v1, v0, v3

    .line 59
    :goto_25
    return-object v0

    .line 50
    :cond_26
    aput v2, v0, v2

    goto :goto_15

    .line 57
    :cond_29
    aput v2, v0, v3

    goto :goto_25
.end method

.method public findSnapView(Landroid/support/v7/widget/RecyclerView$LayoutManager;)Landroid/view/View;
    .registers 3

    .prologue
    .line 132
    invoke-virtual {p1}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->canScrollVertically()Z

    move-result v0

    if-eqz v0, :cond_f

    .line 133
    invoke-direct {p0, p1}, Landroid/support/v7/widget/LinearSnapHelper;->getVerticalHelper(Landroid/support/v7/widget/RecyclerView$LayoutManager;)Landroid/support/v7/widget/OrientationHelper;

    move-result-object v0

    invoke-direct {p0, p1, v0}, Landroid/support/v7/widget/LinearSnapHelper;->findCenterView(Landroid/support/v7/widget/RecyclerView$LayoutManager;Landroid/support/v7/widget/OrientationHelper;)Landroid/view/View;

    move-result-object v0

    .line 137
    :goto_e
    return-object v0

    .line 134
    :cond_f
    invoke-virtual {p1}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z

    move-result v0

    if-eqz v0, :cond_1e

    .line 135
    invoke-direct {p0, p1}, Landroid/support/v7/widget/LinearSnapHelper;->getHorizontalHelper(Landroid/support/v7/widget/RecyclerView$LayoutManager;)Landroid/support/v7/widget/OrientationHelper;

    move-result-object v0

    invoke-direct {p0, p1, v0}, Landroid/support/v7/widget/LinearSnapHelper;->findCenterView(Landroid/support/v7/widget/RecyclerView$LayoutManager;Landroid/support/v7/widget/OrientationHelper;)Landroid/view/View;

    move-result-object v0

    goto :goto_e

    .line 137
    :cond_1e
    const/4 v0, 0x0

    goto :goto_e
.end method

.method public findTargetSnapPosition(Landroid/support/v7/widget/RecyclerView$LayoutManager;II)I
    .registers 12

    .prologue
    const/4 v7, 0x0

    const/4 v1, 0x0

    const/4 v3, -0x1

    .line 65
    instance-of v0, p1, Landroid/support/v7/widget/RecyclerView$SmoothScroller$ScrollVectorProvider;

    if-nez v0, :cond_9

    move v0, v3

    .line 127
    :cond_8
    :goto_8
    return v0

    .line 69
    :cond_9
    invoke-virtual {p1}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->getItemCount()I

    move-result v4

    .line 70
    if-nez v4, :cond_11

    move v0, v3

    .line 71
    goto :goto_8

    .line 74
    :cond_11
    invoke-virtual {p0, p1}, Landroid/support/v7/widget/LinearSnapHelper;->findSnapView(Landroid/support/v7/widget/RecyclerView$LayoutManager;)Landroid/view/View;

    move-result-object v0

    .line 75
    if-nez v0, :cond_19

    move v0, v3

    .line 76
    goto :goto_8

    .line 79
    :cond_19
    invoke-virtual {p1, v0}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->getPosition(Landroid/view/View;)I

    move-result v5

    .line 80
    if-ne v5, v3, :cond_21

    move v0, v3

    .line 81
    goto :goto_8

    :cond_21
    move-object v0, p1

    .line 84
    check-cast v0, Landroid/support/v7/widget/RecyclerView$SmoothScroller$ScrollVectorProvider;

    .line 89
    add-int/lit8 v2, v4, -0x1

    invoke-interface {v0, v2}, Landroid/support/v7/widget/RecyclerView$SmoothScroller$ScrollVectorProvider;->computeScrollVectorForPosition(I)Landroid/graphics/PointF;

    move-result-object v6

    .line 90
    if-nez v6, :cond_2e

    move v0, v3

    .line 92
    goto :goto_8

    .line 96
    :cond_2e
    invoke-virtual {p1}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z

    move-result v0

    if-eqz v0, :cond_62

    .line 98
    invoke-direct {p0, p1}, Landroid/support/v7/widget/LinearSnapHelper;->getHorizontalHelper(Landroid/support/v7/widget/RecyclerView$LayoutManager;)Landroid/support/v7/widget/OrientationHelper;

    move-result-object v0

    .line 97
    invoke-direct {p0, p1, v0, p2, v1}, Landroid/support/v7/widget/LinearSnapHelper;->estimateNextPositionDiffForFling(Landroid/support/v7/widget/RecyclerView$LayoutManager;Landroid/support/v7/widget/OrientationHelper;II)I

    move-result v0

    .line 99
    iget v2, v6, Landroid/graphics/PointF;->x:F

    cmpg-float v2, v2, v7

    if-gez v2, :cond_43

    .line 100
    neg-int v0, v0

    .line 105
    :cond_43
    :goto_43
    invoke-virtual {p1}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->canScrollVertically()Z

    move-result v2

    if-eqz v2, :cond_64

    .line 107
    invoke-direct {p0, p1}, Landroid/support/v7/widget/LinearSnapHelper;->getVerticalHelper(Landroid/support/v7/widget/RecyclerView$LayoutManager;)Landroid/support/v7/widget/OrientationHelper;

    move-result-object v2

    .line 106
    invoke-direct {p0, p1, v2, v1, p3}, Landroid/support/v7/widget/LinearSnapHelper;->estimateNextPositionDiffForFling(Landroid/support/v7/widget/RecyclerView$LayoutManager;Landroid/support/v7/widget/OrientationHelper;II)I

    move-result v2

    .line 108
    iget v6, v6, Landroid/graphics/PointF;->y:F

    cmpg-float v6, v6, v7

    if-gez v6, :cond_58

    .line 109
    neg-int v2, v2

    .line 115
    :cond_58
    :goto_58
    invoke-virtual {p1}, Landroid/support/v7/widget/RecyclerView$LayoutManager;->canScrollVertically()Z

    move-result v6

    if-eqz v6, :cond_66

    .line 116
    :goto_5e
    if-nez v2, :cond_68

    move v0, v3

    .line 117
    goto :goto_8

    :cond_62
    move v0, v1

    .line 103
    goto :goto_43

    :cond_64
    move v2, v1

    .line 112
    goto :goto_58

    :cond_66
    move v2, v0

    .line 115
    goto :goto_5e

    .line 120
    :cond_68
    add-int v0, v5, v2

    .line 121
    if-gez v0, :cond_6d

    move v0, v1

    .line 124
    :cond_6d
    if-lt v0, v4, :cond_8

    .line 125
    add-int/lit8 v0, v4, -0x1

    goto :goto_8
.end method