kepler.gl
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
153 lines (150 loc) • 23.7 kB
JavaScript
"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports["default"] = useLegendPosition;
exports.useCalcLegendPosition = useCalcLegendPosition;
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _react = require("react");
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { (0, _defineProperty2["default"])(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; } // SPDX-License-Identifier: MIT
// Copyright contributors to the kepler.gl project
var MARGIN = {
left: 10,
top: 10,
right: 10,
bottom: 30
};
var DEFAULT_POSITION = {
x: MARGIN.right,
y: MARGIN.bottom,
anchorX: 'right',
anchorY: 'bottom'
};
var MIN_CONTENT_HEIGHT = 100;
var MAP_CONTROL_HEADER_FULL_HEIGHT = 34;
function useCalcLegendPosition(_ref) {
var legendContentRef = _ref.legendContentRef,
isSidePanelShown = _ref.isSidePanelShown,
sidePanelWidth = _ref.sidePanelWidth;
return (0, _react.useCallback)(function () {
var _legendContentRef$cur;
var root = (_legendContentRef$cur = legendContentRef.current) === null || _legendContentRef$cur === void 0 ? void 0 : _legendContentRef$cur.closest('.kepler-gl');
var legendContent = legendContentRef.current;
if (!legendContent || !(root instanceof HTMLElement)) {
return DEFAULT_POSITION;
}
var legendRect = legendContent.getBoundingClientRect();
var mapRootBounds = root.getBoundingClientRect();
var leftSidebarOffset = isSidePanelShown ? sidePanelWidth : 0;
var leftOffset = Math.max(MARGIN.left, legendRect.left - mapRootBounds.left - leftSidebarOffset);
var rightOffset = Math.max(MARGIN.right, mapRootBounds.right - legendRect.right);
var topOffset = Math.max(MARGIN.top, legendRect.top - mapRootBounds.top);
var bottomOffset = Math.max(MARGIN.bottom, mapRootBounds.bottom - legendRect.bottom);
return _objectSpread(_objectSpread({}, leftOffset < rightOffset ? {
x: leftOffset + leftSidebarOffset,
anchorX: 'left'
} : {
x: rightOffset,
anchorX: 'right'
}), topOffset < bottomOffset ? {
y: topOffset,
anchorY: 'top'
} : {
y: bottomOffset,
anchorY: 'bottom'
});
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [isSidePanelShown, sidePanelWidth]);
}
/**
* Returns a function that calculates the anchored position of the map legend
* that is being dragged.
*/
function useLegendPosition(_ref2) {
var _settings$position, _settings$contentHeig, _theme$sidePanel;
var legendContentRef = _ref2.legendContentRef,
isSidePanelShown = _ref2.isSidePanelShown,
settings = _ref2.settings,
onChangeSettings = _ref2.onChangeSettings,
theme = _ref2.theme;
var pos = (_settings$position = settings === null || settings === void 0 ? void 0 : settings.position) !== null && _settings$position !== void 0 ? _settings$position : DEFAULT_POSITION;
var contentHeight = (_settings$contentHeig = settings === null || settings === void 0 ? void 0 : settings.contentHeight) !== null && _settings$contentHeig !== void 0 ? _settings$contentHeig : -1;
var positionStyles = (0, _react.useMemo)(function () {
return (0, _defineProperty2["default"])((0, _defineProperty2["default"])({}, pos.anchorX, pos.x), pos.anchorY, pos.y);
}, [pos]);
var startHeightRef = (0, _react.useRef)(0);
var sidePanelWidth = ((_theme$sidePanel = theme.sidePanel) === null || _theme$sidePanel === void 0 ? void 0 : _theme$sidePanel.width) || 0;
var calcPosition = useCalcLegendPosition({
legendContentRef: legendContentRef,
isSidePanelShown: isSidePanelShown,
sidePanelWidth: sidePanelWidth
});
var updatePosition = (0, _react.useCallback)(function () {
return onChangeSettings({
position: calcPosition()
});
}, [calcPosition, onChangeSettings]);
var startResize = (0, _react.useCallback)(function () {
var _legendContentRef$cur2;
var content = (_legendContentRef$cur2 = legendContentRef.current) === null || _legendContentRef$cur2 === void 0 ? void 0 : _legendContentRef$cur2.querySelector('.map-control__panel-content');
if (content instanceof HTMLElement) {
startHeightRef.current = content.offsetHeight;
}
// eslint-disable-next-line react-hooks/exhaustive-deps
}, []);
var resize = (0, _react.useCallback)(function (deltaY) {
var _legendContentRef$cur3;
var root = (_legendContentRef$cur3 = legendContentRef.current) === null || _legendContentRef$cur3 === void 0 ? void 0 : _legendContentRef$cur3.closest('.kepler-gl');
var legendContent = legendContentRef.current;
if (root instanceof HTMLElement && legendContent) {
var mapRootBounds = root.getBoundingClientRect();
var legendRect = legendContent.getBoundingClientRect();
var nextHeight = Math.min(mapRootBounds.bottom - (legendRect.top + MAP_CONTROL_HEADER_FULL_HEIGHT + MARGIN.bottom), Math.max(MIN_CONTENT_HEIGHT, startHeightRef.current + deltaY));
onChangeSettings({
contentHeight: nextHeight
});
if (contentHeight > 0 && pos.anchorY === 'bottom') {
onChangeSettings({
position: _objectSpread(_objectSpread({}, pos), {}, {
y: pos.y - (nextHeight - contentHeight)
})
});
}
}
},
// eslint-disable-next-line react-hooks/exhaustive-deps
[contentHeight, pos, onChangeSettings]);
// Shift when side panel is shown/hidden
var posRef = (0, _react.useRef)(pos);
posRef.current = pos;
(0, _react.useEffect)(function () {
var currentPos = posRef.current;
if (currentPos.anchorX === 'left') {
if (isSidePanelShown) {
if (currentPos.x <= sidePanelWidth + MARGIN.left) {
onChangeSettings({
position: _objectSpread(_objectSpread({}, currentPos), {}, {
x: sidePanelWidth + MARGIN.left
})
});
}
} else {
onChangeSettings({
position: _objectSpread(_objectSpread({}, currentPos), {}, {
x: Math.max(MARGIN.left, currentPos.x - sidePanelWidth)
})
});
}
}
}, [isSidePanelShown, onChangeSettings, sidePanelWidth]);
return {
positionStyles: positionStyles,
updatePosition: updatePosition,
contentHeight: contentHeight,
startResize: startResize,
resize: resize
};
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["_react","require","ownKeys","e","r","t","Object","keys","getOwnPropertySymbols","o","filter","getOwnPropertyDescriptor","enumerable","push","apply","_objectSpread","arguments","length","forEach","_defineProperty2","getOwnPropertyDescriptors","defineProperties","defineProperty","MARGIN","left","top","right","bottom","DEFAULT_POSITION","x","y","anchorX","anchorY","MIN_CONTENT_HEIGHT","MAP_CONTROL_HEADER_FULL_HEIGHT","useCalcLegendPosition","_ref","legendContentRef","isSidePanelShown","sidePanelWidth","useCallback","_legendContentRef$cur","root","current","closest","legendContent","HTMLElement","legendRect","getBoundingClientRect","mapRootBounds","leftSidebarOffset","leftOffset","Math","max","rightOffset","topOffset","bottomOffset","useLegendPosition","_ref2","_settings$position","_settings$contentHeig","_theme$sidePanel","settings","onChangeSettings","theme","pos","position","contentHeight","positionStyles","useMemo","startHeightRef","useRef","sidePanel","width","calcPosition","updatePosition","startResize","_legendContentRef$cur2","content","querySelector","offsetHeight","resize","deltaY","_legendContentRef$cur3","nextHeight","min","posRef","useEffect","currentPos"],"sources":["../../src/hooks/use-legend-position.ts"],"sourcesContent":["// SPDX-License-Identifier: MIT\n// Copyright contributors to the kepler.gl project\n\nimport {useMemo, useRef, useCallback, useEffect} from 'react';\n\nimport {MapLegendControlSettings} from '@kepler.gl/types';\n\ntype Params = {\n  legendContentRef: React.MutableRefObject<HTMLElement | null>;\n  isSidePanelShown: boolean;\n  settings?: MapLegendControlSettings;\n  onChangeSettings: (settings: Partial<MapLegendControlSettings>) => void;\n  theme: Record<string, any>;\n};\n\ntype ReturnType = {\n  positionStyles: Record<string, unknown>;\n  updatePosition: () => void;\n  contentHeight: number;\n  startResize: () => void;\n  resize: (deltaY: number) => void;\n};\n\nconst MARGIN = {\n  left: 10,\n  top: 10,\n  right: 10,\n  bottom: 30\n};\nconst DEFAULT_POSITION: MapLegendControlSettings['position'] = {\n  x: MARGIN.right,\n  y: MARGIN.bottom,\n  anchorX: 'right',\n  anchorY: 'bottom'\n};\nconst MIN_CONTENT_HEIGHT = 100;\nconst MAP_CONTROL_HEADER_FULL_HEIGHT = 34;\n\nexport type UseCalcLegendPositionProps = {\n  legendContentRef: React.MutableRefObject<HTMLElement | null>;\n  isSidePanelShown: boolean;\n  sidePanelWidth: number;\n};\n\nexport function useCalcLegendPosition({\n  legendContentRef,\n  isSidePanelShown,\n  sidePanelWidth\n}: UseCalcLegendPositionProps) {\n  return useCallback((): MapLegendControlSettings['position'] => {\n    const root = legendContentRef.current?.closest('.kepler-gl');\n    const legendContent = legendContentRef.current;\n    if (!legendContent || !(root instanceof HTMLElement)) {\n      return DEFAULT_POSITION;\n    }\n    const legendRect = legendContent.getBoundingClientRect();\n    const mapRootBounds = root.getBoundingClientRect();\n    const leftSidebarOffset = isSidePanelShown ? sidePanelWidth : 0;\n\n    const leftOffset = Math.max(\n      MARGIN.left,\n      legendRect.left - mapRootBounds.left - leftSidebarOffset\n    );\n    const rightOffset = Math.max(MARGIN.right, mapRootBounds.right - legendRect.right);\n\n    const topOffset = Math.max(MARGIN.top, legendRect.top - mapRootBounds.top);\n    const bottomOffset = Math.max(MARGIN.bottom, mapRootBounds.bottom - legendRect.bottom);\n\n    return {\n      ...(leftOffset < rightOffset\n        ? {x: leftOffset + leftSidebarOffset, anchorX: 'left'}\n        : {x: rightOffset, anchorX: 'right'}),\n      ...(topOffset < bottomOffset\n        ? {y: topOffset, anchorY: 'top'}\n        : {y: bottomOffset, anchorY: 'bottom'})\n    };\n    // eslint-disable-next-line react-hooks/exhaustive-deps\n  }, [isSidePanelShown, sidePanelWidth]);\n}\n\n/**\n * Returns a function that calculates the anchored position of the map legend\n * that is being dragged.\n */\nexport default function useLegendPosition({\n  legendContentRef,\n  isSidePanelShown,\n  settings,\n  onChangeSettings,\n  theme\n}: Params): ReturnType {\n  const pos = settings?.position ?? DEFAULT_POSITION;\n  const contentHeight = settings?.contentHeight ?? -1;\n  const positionStyles = useMemo(() => ({[pos.anchorX]: pos.x, [pos.anchorY]: pos.y}), [pos]);\n  const startHeightRef = useRef(0);\n  const sidePanelWidth = theme.sidePanel?.width || 0;\n\n  const calcPosition = useCalcLegendPosition({\n    legendContentRef,\n    isSidePanelShown,\n    sidePanelWidth\n  });\n  const updatePosition = useCallback(\n    () => onChangeSettings({position: calcPosition()}),\n    [calcPosition, onChangeSettings]\n  );\n\n  const startResize = useCallback(() => {\n    const content = legendContentRef.current?.querySelector('.map-control__panel-content');\n    if (content instanceof HTMLElement) {\n      startHeightRef.current = content.offsetHeight;\n    }\n    // eslint-disable-next-line react-hooks/exhaustive-deps\n  }, []);\n  const resize = useCallback(\n    deltaY => {\n      const root = legendContentRef.current?.closest('.kepler-gl');\n      const legendContent = legendContentRef.current;\n      if (root instanceof HTMLElement && legendContent) {\n        const mapRootBounds = root.getBoundingClientRect();\n        const legendRect = legendContent.getBoundingClientRect();\n        const nextHeight = Math.min(\n          mapRootBounds.bottom - (legendRect.top + MAP_CONTROL_HEADER_FULL_HEIGHT + MARGIN.bottom),\n          Math.max(MIN_CONTENT_HEIGHT, startHeightRef.current + deltaY)\n        );\n        onChangeSettings({contentHeight: nextHeight});\n        if (contentHeight > 0 && pos.anchorY === 'bottom') {\n          onChangeSettings({position: {...pos, y: pos.y - (nextHeight - contentHeight)}});\n        }\n      }\n    },\n    // eslint-disable-next-line react-hooks/exhaustive-deps\n    [contentHeight, pos, onChangeSettings]\n  );\n\n  // Shift when side panel is shown/hidden\n  const posRef = useRef(pos);\n  posRef.current = pos;\n  useEffect(() => {\n    const currentPos = posRef.current;\n    if (currentPos.anchorX === 'left') {\n      if (isSidePanelShown) {\n        if (currentPos.x <= sidePanelWidth + MARGIN.left) {\n          onChangeSettings({position: {...currentPos, x: sidePanelWidth + MARGIN.left}});\n        }\n      } else {\n        onChangeSettings({\n          position: {...currentPos, x: Math.max(MARGIN.left, currentPos.x - sidePanelWidth)}\n        });\n      }\n    }\n  }, [isSidePanelShown, onChangeSettings, sidePanelWidth]);\n\n  return {positionStyles, updatePosition, contentHeight, startResize, 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