transmission/macosx/SmallTorrentCell.mm

// This file Copyright © Transmission authors and contributors.
// It may be used under the MIT (SPDX: MIT) license.
// License text can be found in the licenses/ folder.

#import "SmallTorrentCell.h"
#import "ProgressBarView.h"
#import "ProgressGradients.h"
#import "TorrentTableView.h"
#import "Torrent.h"

@interface SmallTorrentCell ()
@property(nonatomic) NSTrackingArea* fTrackingArea;
@end

@implementation SmallTorrentCell

// show fControlButton and fRevealButton
- (void)mouseEntered:(NSEvent*)event
{
    [super mouseEntered:event];

    NSPoint mouseLocation = [self convertPoint:[event locationInWindow] fromView:nil];
    if (NSPointInRect(mouseLocation, self.fTrackingArea.rect))
    {
        [self.fTorrentTableView hoverEventBeganForView:self];
    }
}

- (void)mouseExited:(NSEvent*)event
{
    [super mouseExited:event];

    NSPoint mouseLocation = [self convertPoint:[event locationInWindow] fromView:nil];
    if (!NSPointInRect(mouseLocation, self.fTrackingArea.rect))
    {
        [self.fTorrentTableView hoverEventEndedForView:self];
    }
}

- (void)mouseUp:(NSEvent*)event
{
    [super mouseUp:event];
    [self updateTrackingAreas];
}

- (void)updateTrackingAreas
{
    [super updateTrackingAreas];

    if (self.fTrackingArea != nil)
    {
        [self removeTrackingArea:self.fTrackingArea];
    }

    NSRect rect = self.bounds;

    NSTrackingAreaOptions opts = (NSTrackingMouseEnteredAndExited | NSTrackingActiveInKeyWindow);
    self.fTrackingArea = [[NSTrackingArea alloc] initWithRect:rect options:opts owner:self userInfo:nil];
    [self addTrackingArea:self.fTrackingArea];

    //check to see if mouse is already within rect
    NSPoint mouseLocation = [self.window mouseLocationOutsideOfEventStream];
    mouseLocation = [self.superview convertPoint:mouseLocation fromView:nil];

    if (NSPointInRect(mouseLocation, rect))
    {
        [self mouseEntered:[[NSEvent alloc] init]];
    }
    else
    {
        [self mouseExited:[[NSEvent alloc] init]];
    }
}

@end