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Merge pull request #1097 from adroitwhiz/scrollbar-padding

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Make the room between canvas edges and scrollbars count as draggable
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adroitwhiz 2020-06-04 15:23:12 -04:00 committed by GitHub
commit 3dac1b6adc
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 30 additions and 14 deletions
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28
src/components/scrollable-canvas/scrollable-canvas.css
View file

@ -2,31 +2,39 @@ $scrollbar-size: 8px;
$scrollbar-padding: 4px;
.vertical-scrollbar, .horizontal-scrollbar {
position: absolute;
background: rgba(190, 190, 190, 0.8);
border-radius: calc($scrollbar-size / 2);
cursor: pointer;
width: 100%;
height: 100%;
}
.vertical-scrollbar-wrapper {
position: absolute;
width: $scrollbar-size;
right: $scrollbar-padding;
width: calc($scrollbar-size + $scrollbar-padding);
right: 0;
top: $scrollbar-padding;
height: calc(100% - $scrollbar-size - 2 * $scrollbar-padding);
}
.horizontal-scrollbar-wrapper {
position: absolute;
height: $scrollbar-size;
height: calc($scrollbar-size + $scrollbar-padding);
left: $scrollbar-padding;
bottom: $scrollbar-padding;
bottom: 0;
width: calc(100% - $scrollbar-size - 2 * $scrollbar-padding);
}
.vertical-scrollbar {
width: $scrollbar-size;
.vertical-scrollbar-hitbox, .horizontal-scrollbar-hitbox {
position: absolute;
cursor: pointer;
box-sizing: border-box;
}
.horizontal-scrollbar {
height: $scrollbar-size;
.vertical-scrollbar-hitbox {
width: calc($scrollbar-size + $scrollbar-padding);
padding-right: $scrollbar-padding;
}
.horizontal-scrollbar-hitbox {
height: calc($scrollbar-size + $scrollbar-padding);
padding-bottom: $scrollbar-padding;
}

16
src/components/scrollable-canvas/scrollable-canvas.jsx
View file

@ -13,7 +13,7 @@ const ScrollableCanvasComponent = props => (
style={{pointerEvents: 'none'}}
>
<div
className={styles.horizontalScrollbar}
className={styles.horizontalScrollbarHitbox}
style={{
width: `${props.horizontalScrollLengthPercent}%`,
left: `${props.horizontalScrollStartPercent}%`,
@ -23,14 +23,18 @@ const ScrollableCanvasComponent = props => (
}}
onMouseDown={props.onHorizontalScrollbarMouseDown}
onTouchStart={props.onHorizontalScrollbarMouseDown}
/>
>
<div
className={styles.horizontalScrollbar}
/>
</div>
</div>
<div
className={styles.verticalScrollbarWrapper}
style={{pointerEvents: 'none'}}
>
<div
className={styles.verticalScrollbar}
className={styles.verticalScrollbarHitbox}
style={{
height: `${props.verticalScrollLengthPercent}%`,
top: `${props.verticalScrollStartPercent}%`,
@ -40,7 +44,11 @@ const ScrollableCanvasComponent = props => (
}}
onMouseDown={props.onVerticalScrollbarMouseDown}
onTouchStart={props.onVerticalScrollbarMouseDown}
/>
>
<div
className={styles.verticalScrollbar}
/>
</div>
</div>
</div>
);