Akmal / feat: remove relative indicator if it's blocking current price [flutter]

sass/components/_barrier.scss

@@ -33,7 +33,8 @@
             width: 100%;
             margin-left: -10px;
             position: relative;
-            border-top-width: 0;
+            border-top-width: 1px;
+            border-top-color: $color-blue;
         }
         .title-wrapper {
             $title-height: 24px;
@@ -74,12 +75,13 @@
 }
 
 .drag-price {
-    display: block;
+    display: flex;
     height: 24px;
-    top: -11px;
+    top: -12px;
     position: absolute;
     right: -1px;
-    border: 1px solid inherit;
+    background-color: $color-blue;
+    justify-content: space-between;
 
     .arrow-icon {
         height: 41px;
@@ -123,26 +125,54 @@
 /*hover*/
 
 .price {
+    display: block;
     font-size: 12px;
     font-weight: bold;
-    display: block;
-    padding: 3px 1px;
     line-height: 18px;
-    overflow: hidden;
+    overflow: unset;
+    padding: 3px 1px;
+    position: relative;
+    right: 45px;
     text-align: center;
-}
+    width: max-content;
 
-.draggable .price {
-    padding-left: 16px;
+    &--zero {
+        color: $color-blue;
+        @include themify($themes) {
+            background-color: themed('DefaultBg');
+        }
+    }
+    &-overlay {
+        background-color: $color-blue;
+        height: 24px;
+        opacity: 0.3;
+        position: relative;
+        right: -10px;
+        top: -12px;
+    }
+}
 
-    &:after {
-        font-weight: normal;
-        content: '≡';
-        font-size: 25px;
-        position: absolute;
-        left: 1px;
-        top: 1px;
-        transform: scaleX(0.8);
+.draggable {
+    &-area-wrapper {
+        display: flex;
+    }
+    .price {
+        overflow: unset;
+        position: relative;
+        right: 55px;
+    }
+    .drag-icon {
+        display: flex;
+        flex-direction: column;
+        justify-content: center;
+        margin-left: 3px;
+
+        div {
+            background-color: $color-white;
+            height: 1px;
+            margin: 1px;
+            width: 8px;
+        }
     }
 }
 

src/components/Barrier.tsx

@@ -18,18 +18,18 @@ const Barrier = ({ store, ...props }: TBarrierBaseProps) => {
         aboveShadeStore,
         belowShadeStore,
         betweenShadeStore,
-        shadeColor = '#39b19d',
         color = '#39b19d',
         foregroundColor = '#ffffff',
+        hideBarrierLine,
         hideOffscreenBarrier,
         hideOffscreenLine,
-        hideBarrierLine,
         hidePriceLines,
-        lineStyle,
         isInitialized,
-        priceLabelWidth,
         isSingleBarrier,
+        lineStyle,
         opacityOnOverlap,
+        overlappedBarrierWidth,
+        shadeColor = '#39b19d',
     } = store;
 
     if (!isInitialized) return null;
@@ -41,7 +41,7 @@ const Barrier = ({ store, ...props }: TBarrierBaseProps) => {
         >
             <PriceLine
                 store={_high_barrier}
-                width={priceLabelWidth}
+                width={overlappedBarrierWidth}
                 lineStyle={lineStyle}
                 color={color}
                 foregroundColor={foregroundColor}
@@ -55,7 +55,7 @@ const Barrier = ({ store, ...props }: TBarrierBaseProps) => {
                 <>
                     <PriceLine
                         store={_low_barrier}
-                        width={priceLabelWidth}
+                        width={overlappedBarrierWidth}
                         lineStyle={lineStyle}
                         color={color}
                         foregroundColor={foregroundColor}

src/components/HamburgerDragIcon.tsx

@@ -0,0 +1,11 @@
+import React from 'react';
+
+const HamburgerDragIcon = () => (
+    <div className='drag-icon'>
+        <div></div>
+        <div></div>
+        <div></div>
+    </div>
+);
+
+export default HamburgerDragIcon;

src/components/PriceLine.tsx

@@ -4,10 +4,11 @@ import classNames from 'classnames';
 import PriceLineStore from 'src/store/PriceLineStore';
 import PriceLineArrow from './PriceLineArrow';
 import PriceLineTitle from './PriceLineTitle';
+import HamburgerDragIcon from './HamburgerDragIcon';
 
 type TPriceLineProps = {
     store: PriceLineStore;
-    lineStyle?: string;
+    lineStyle?: React.CSSProperties['borderStyle'];
     hideOffscreenBarrier?: boolean;
     hideOffscreenLine?: boolean;
     hideBarrierLine?: boolean;
@@ -29,18 +30,19 @@ const PriceLine = ({
     store,
 }: TPriceLineProps) => {
     const {
-        priceDisplay,
-        visible,
-        setDragLine,
         className,
         draggable,
-        isDragging,
         init,
-        title,
-        yAxiswidth,
+        isDragging,
+        isOverlapping,
+        isOverlappingWithPriceLine,
         offScreen,
         offScreenDirection,
-        isOverlapping,
+        priceDisplay,
+        setDragLine,
+        title,
+        visible,
+        yAxiswidth,
     } = store;
 
     const showBarrier = React.useMemo(() => !(hideOffscreenBarrier && offScreen), [hideOffscreenBarrier, offScreen]);
@@ -57,26 +59,66 @@ const PriceLine = ({
     if (!showBarrier) return null;
 
     return (
-        <div className='barrier-area' style={{ top: 0 }} ref={setDragLine} hidden={!visible}>
+        <div
+            className={classNames('barrier-area', { 'barrier-area--zero': isOverlappingWithPriceLine })}
+            style={{ top: 0 }}
+            ref={setDragLine}
+            hidden={!visible}
+        >
             <div
                 className={classNames('chart-line', 'horizontal', className || '', {
                     draggable,
                     dragging: isDragging,
                 })}
                 style={{
                     color: foregroundColor,
-                    backgroundImage:
-                        lineStyle && lineStyle !== 'solid' ? '' : `linear-gradient(to left, ${color} 90%, ${color}00`,
                 }}
             >
                 {showBarrierDragLine && (
-                    <div className='drag-line' style={{ borderTop: `${lineStyle} ${color} 1px` }} />
+                    <div
+                        className={classNames('drag-line', { 'drag-line--zero': isOverlappingWithPriceLine })}
+                        style={{
+                            borderTopColor: color,
+                            borderTopStyle: lineStyle as React.CSSProperties['borderTopStyle'],
+                            width: `calc(100% - ${yAxiswidth}px + ${width}px)`,
+                        }}
+                    />
                 )}
                 <div className='draggable-area' />
-                <div className='drag-price' style={{ backgroundColor: color, width, opacity }}>
-                    <div className='price'>{priceDisplay}</div>
-                    {offScreen && offScreenDirection && (
-                        <PriceLineArrow offScreenDirection={offScreenDirection} color={color} />
+                <div className='draggable-area-wrapper'>
+                    <div
+                        className={'drag-price'}
+                        style={{
+                            backgroundColor: color,
+                            width: isOverlappingWithPriceLine ? width : yAxiswidth,
+                            opacity,
+                            right: isOverlappingWithPriceLine ? yAxiswidth - width : 0,
+                        }}
+                    >
+                        <HamburgerDragIcon />
+                        <div
+                            className={classNames('price', { 'price--zero': isOverlappingWithPriceLine })}
+                            style={{
+                                color: isOverlappingWithPriceLine ? color : '',
+                                right: isOverlappingWithPriceLine
+                                    ? width + priceDisplay.length * 8 - (!draggable ? 16 : 0)
+                                    : 0,
+                            }}
+                        >
+                            {priceDisplay}
+                        </div>
+                        <div />
+                        {offScreen && offScreenDirection && (
+                            <PriceLineArrow offScreenDirection={offScreenDirection} color={color} />
+                        )}
+                    </div>
+                    {isOverlappingWithPriceLine && (
+                        <div>
+                            <div
+                                className='price-overlay'
+                                style={{ backgroundColor: color, width: yAxiswidth - width }}
+                            />
+                        </div>
                     )}
                 </div>
                 {title && <PriceLineTitle color={color} title={title} yAxiswidth={yAxiswidth} opacity={opacity} />}

src/store/BarrierStore.ts

@@ -1,3 +1,4 @@
+import { CSSProperties } from 'react';
 import { action, computed, observable, makeObservable } from 'mobx';
 import MainStore from '.';
 import Context from '../components/ui/Context';
@@ -47,7 +48,7 @@ export default class BarrierStore {
     isTopShadeVisible = false;
     isBottomShadeVisible = false;
     hidePriceLines = false;
-    lineStyle?: string;
+    lineStyle?: CSSProperties['borderStyle'];
     isInitialized = false;
     initializePromise = PendingPromise<void, void>();
     hideBarrierLine = false;
@@ -63,8 +64,8 @@ export default class BarrierStore {
     get yAxisWidth(): number {
         return this.mainStore.chart.yAxiswidth;
     }
-    get priceLabelWidth(): number {
-        return this.yAxisWidth + 1;
+    get overlappedBarrierWidth(): number {
+        return 16;
     }
 
     constructor(mainStore: MainStore) {
@@ -83,12 +84,12 @@ export default class BarrierStore {
             hideOffscreenLine: observable,
             hideOffscreenBarrier: observable,
             isSingleBarrier: observable,
-            pip: computed,
-            yAxisWidth: computed,
-            priceLabelWidth: computed,
+            destructor: action.bound,
             init: action.bound,
+            overlappedBarrierWidth: computed,
+            pip: computed,
             updateProps: action.bound,
-            destructor: action.bound
+            yAxisWidth: computed,
         });
 
         this.mainStore = mainStore;

src/store/ChartStore.ts

@@ -1061,7 +1061,7 @@ class ChartStore {
 
         const { context } = this.context?.stx.chart;
         // barrier price can be wider than current tick price for 1 decimal digit
-        const priceWidth = context.measureText(price.toFixed((this.pip as number) + 1)).width + 20;
+        const priceWidth = context.measureText(price.toFixed((this.pip as number) + 1)).width + 26;
         if (priceWidth > this.yAxiswidth) {
             this.yAxiswidth = priceWidth;
 

src/store/PriceLineStore.ts

@@ -30,6 +30,7 @@ export default class PriceLineStore {
     offScreen = false;
     title?: string;
     isOverlapping = false;
+    isOverlappingWithPriceLine = false;
     offScreenDirection: keyof typeof DIRECTIONS | null = null;
 
     set zIndex(value: string | number | null) {
@@ -51,6 +52,7 @@ export default class PriceLineStore {
             offScreen: observable,
             title: observable,
             isOverlapping: observable,
+            isOverlappingWithPriceLine: observable,
             offScreenDirection: observable,
             pip: computed,
             priceDisplay: computed,
@@ -225,6 +227,10 @@ export default class PriceLineStore {
         return price;
     }
 
+    _distanceFromCurrentPrice() {
+        return Math.abs(this._locationFromPrice(+this.realPrice) - this._locationFromPrice(+this.realPrice - +this._price));
+    }
+
     _calculateTop = () => {
         if (this.stx.currentQuote() === null) {
             return;
@@ -265,10 +271,12 @@ export default class PriceLineStore {
             this.isOverlapping = this.overlapCheck(top);
         }
 
+        this.isOverlappingWithPriceLine = this._distanceFromCurrentPrice() < 25;
+
         return Math.round(top) | 0;
     };
 
-    // Mantually update the top to improve performance.
+    // Manually update the top to improve performance.
     // We don't pay for react reconciler and mobx observable tracking in animation frames.
     set top(v) {
         this.__top = v;
@@ -304,7 +312,6 @@ export default class PriceLineStore {
             if (i === current_barrier_idx) {
                 continue;
             }
-
             const barrier = filtered_barriers[i];
             const diffTop = barrier._high_barrier.top && Math.abs(barrier._high_barrier.top - top);