ngx-drag-to-select
Version:
A lightweight, fast, configurable and reactive drag-to-select component for Angular 8 and beyond
81 lines • 11.7 kB
JavaScript
import { MIN_HEIGHT, MIN_WIDTH } from './constants';
export const isObject = (item) => {
return item && typeof item === 'object' && !Array.isArray(item) && item !== null;
};
export function mergeDeep(target, source) {
if (isObject(target) && isObject(source)) {
Object.keys(source).forEach((key) => {
if (isObject(source[key])) {
if (!target[key]) {
Object.assign(target, { [key]: {} });
}
mergeDeep(target[key], source[key]);
}
else {
Object.assign(target, { [key]: source[key] });
}
});
}
return target;
}
export const hasMinimumSize = (selectBox, minWidth = MIN_WIDTH, minHeight = MIN_HEIGHT) => {
return selectBox.width > minWidth || selectBox.height > minHeight;
};
export const clearSelection = (window) => {
const selection = window.getSelection();
if (!selection) {
return;
}
if (selection.removeAllRanges) {
selection.removeAllRanges();
}
else if (selection.empty) {
selection.empty();
}
};
export const inBoundingBox = (point, box) => {
return (box.left <= point.x && point.x <= box.left + box.width && box.top <= point.y && point.y <= box.top + box.height);
};
export const boxIntersects = (boxA, boxB) => {
return (boxA.left <= boxB.left + boxB.width &&
boxA.left + boxA.width >= boxB.left &&
boxA.top <= boxB.top + boxB.height &&
boxA.top + boxA.height >= boxB.top);
};
export const calculateBoundingClientRect = (element) => {
return element.getBoundingClientRect();
};
export const getMousePosition = (event) => {
return {
x: event.clientX,
y: event.clientY,
};
};
export const getScroll = () => {
if (!document || !document.documentElement) {
return {
x: 0,
y: 0,
};
}
return {
x: document.documentElement.scrollLeft || document.body.scrollLeft,
y: document.documentElement.scrollTop || document.body.scrollTop,
};
};
export const getRelativeMousePosition = (event, container) => {
const { x: clientX, y: clientY } = getMousePosition(event);
const scroll = getScroll();
const borderSize = (container.boundingClientRect.width - container.clientWidth) / 2;
const offsetLeft = container.boundingClientRect.left + scroll.x;
const offsetTop = container.boundingClientRect.top + scroll.y;
return {
x: clientX - borderSize - (offsetLeft - window.pageXOffset) + container.scrollLeft,
y: clientY - borderSize - (offsetTop - window.pageYOffset) + container.scrollTop,
};
};
export const cursorWithinElement = (event, element) => {
const mousePoint = getMousePosition(event);
return inBoundingBox(mousePoint, calculateBoundingClientRect(element));
};
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"utils.js","sourceRoot":"","sources":["../../../../projects/ngx-drag-to-select/src/lib/utils.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,UAAU,EAAE,SAAS,EAAE,MAAM,aAAa,CAAC;AAGpD,MAAM,CAAC,MAAM,QAAQ,GAAG,CAAC,IAAS,EAAE,EAAE;IACpC,OAAO,IAAI,IAAI,OAAO,IAAI,KAAK,QAAQ,IAAI,CAAC,KAAK,CAAC,OAAO,CAAC,IAAI,CAAC,IAAI,IAAI,KAAK,IAAI,CAAC;AACnF,CAAC,CAAC;AAEF,MAAM,UAAU,SAAS,CAAC,MAA2B,EAAE,MAA2B;IAChF,IAAI,QAAQ,CAAC,MAAM,CAAC,IAAI,QAAQ,CAAC,MAAM,CAAC,EAAE;QACxC,MAAM,CAAC,IAAI,CAAC,MAAM,CAAC,CAAC,OAAO,CAAC,CAAC,GAAG,EAAE,EAAE;YAClC,IAAI,QAAQ,CAAC,MAAM,CAAC,GAAG,CAAC,CAAC,EAAE;gBACzB,IAAI,CAAC,MAAM,CAAC,GAAG,CAAC,EAAE;oBAChB,MAAM,CAAC,MAAM,CAAC,MAAM,EAAE,EAAE,CAAC,GAAG,CAAC,EAAE,EAAE,EAAE,CAAC,CAAC;iBACtC;gBACD,SAAS,CAAC,MAAM,CAAC,GAAG,CAAC,EAAE,MAAM,CAAC,GAAG,CAAC,CAAC,CAAC;aACrC;iBAAM;gBACL,MAAM,CAAC,MAAM,CAAC,MAAM,EAAE,EAAE,CAAC,GAAG,CAAC,EAAE,MAAM,CAAC,GAAG,CAAC,EAAE,CAAC,CAAC;aAC/C;QACH,CAAC,CAAC,CAAC;KACJ;IAED,OAAO,MAAM,CAAC;AAChB,CAAC;AAED,MAAM,CAAC,MAAM,cAAc,GAAG,CAAC,SAA4B,EAAE,QAAQ,GAAG,SAAS,EAAE,SAAS,GAAG,UAAU,EAAE,EAAE;IAC3G,OAAO,SAAS,CAAC,KAAK,GAAG,QAAQ,IAAI,SAAS,CAAC,MAAM,GAAG,SAAS,CAAC;AACpE,CAAC,CAAC;AAEF,MAAM,CAAC,MAAM,cAAc,GAAG,CAAC,MAAc,EAAE,EAAE;IAC/C,MAAM,SAAS,GAAG,MAAM,CAAC,YAAY,EAAE,CAAC;IAExC,IAAI,CAAC,SAAS,EAAE;QACd,OAAO;KACR;IAED,IAAI,SAAS,CAAC,eAAe,EAAE;QAC7B,SAAS,CAAC,eAAe,EAAE,CAAC;KAC7B;SAAM,IAAI,SAAS,CAAC,KAAK,EAAE;QAC1B,SAAS,CAAC,KAAK,EAAE,CAAC;KACnB;AACH,CAAC,CAAC;AAEF,MAAM,CAAC,MAAM,aAAa,GAAG,CAAC,KAAoB,EAAE,GAAgB,EAAE,EAAE;IACtE,OAAO,CACL,GAAG,CAAC,IAAI,IAAI,KAAK,CAAC,CAAC,IAAI,KAAK,CAAC,CAAC,IAAI,GAAG,CAAC,IAAI,GAAG,GAAG,CAAC,KAAK,IAAI,GAAG,CAAC,GAAG,IAAI,KAAK,CAAC,CAAC,IAAI,KAAK,CAAC,CAAC,IAAI,GAAG,CAAC,GAAG,GAAG,GAAG,CAAC,MAAM,CAChH,CAAC;AACJ,CAAC,CAAC;AAEF,MAAM,CAAC,MAAM,aAAa,GAAG,CAAC,IAAiB,EAAE,IAAiB,EAAE,EAAE;IACpE,OAAO,CACL,IAAI,CAAC,IAAI,IAAI,IAAI,CAAC,IAAI,GAAG,IAAI,CAAC,KAAK;QACnC,IAAI,CAAC,IAAI,GAAG,IAAI,CAAC,KAAK,IAAI,IAAI,CAAC,IAAI;QACnC,IAAI,CAAC,GAAG,IAAI,IAAI,CAAC,GAAG,GAAG,IAAI,CAAC,MAAM;QAClC,IAAI,CAAC,GAAG,GAAG,IAAI,CAAC,MAAM,IAAI,IAAI,CAAC,GAAG,CACnC,CAAC;AACJ,CAAC,CAAC;AAEF,MAAM,CAAC,MAAM,2BAA2B,GAAG,CAAC,OAAoB,EAAe,EAAE;IAC/E,OAAO,OAAO,CAAC,qBAAqB,EAAE,CAAC;AACzC,CAAC,CAAC;AAEF,MAAM,CAAC,MAAM,gBAAgB,GAAG,CAAC,KAAiB,EAAE,EAAE;IACpD,OAAO;QACL,CAAC,EAAE,KAAK,CAAC,OAAO;QAChB,CAAC,EAAE,KAAK,CAAC,OAAO;KACjB,CAAC;AACJ,CAAC,CAAC;AAEF,MAAM,CAAC,MAAM,SAAS,GAAG,GAAG,EAAE;IAC5B,IAAI,CAAC,QAAQ,IAAI,CAAC,QAAQ,CAAC,eAAe,EAAE;QAC1C,OAAO;YACL,CAAC,EAAE,CAAC;YACJ,CAAC,EAAE,CAAC;SACL,CAAC;KACH;IAED,OAAO;QACL,CAAC,EAAE,QAAQ,CAAC,eAAe,CAAC,UAAU,IAAI,QAAQ,CAAC,IAAI,CAAC,UAAU;QAClE,CAAC,EAAE,QAAQ,CAAC,eAAe,CAAC,SAAS,IAAI,QAAQ,CAAC,IAAI,CAAC,SAAS;KACjE,CAAC;AACJ,CAAC,CAAC;AAEF,MAAM,CAAC,MAAM,wBAAwB,GAAG,CAAC,KAAiB,EAAE,SAA8B,EAAiB,EAAE;IAC3G,MAAM,EAAE,CAAC,EAAE,OAAO,EAAE,CAAC,EAAE,OAAO,EAAE,GAAG,gBAAgB,CAAC,KAAK,CAAC,CAAC;IAC3D,MAAM,MAAM,GAAG,SAAS,EAAE,CAAC;IAE3B,MAAM,UAAU,GAAG,CAAC,SAAS,CAAC,kBAAkB,CAAC,KAAK,GAAG,SAAS,CAAC,WAAW,CAAC,GAAG,CAAC,CAAC;IACpF,MAAM,UAAU,GAAG,SAAS,CAAC,kBAAkB,CAAC,IAAI,GAAG,MAAM,CAAC,CAAC,CAAC;IAChE,MAAM,SAAS,GAAG,SAAS,CAAC,kBAAkB,CAAC,GAAG,GAAG,MAAM,CAAC,CAAC,CAAC;IAE9D,OAAO;QACL,CAAC,EAAE,OAAO,GAAG,UAAU,GAAG,CAAC,UAAU,GAAG,MAAM,CAAC,WAAW,CAAC,GAAG,SAAS,CAAC,UAAU;QAClF,CAAC,EAAE,OAAO,GAAG,UAAU,GAAG,CAAC,SAAS,GAAG,MAAM,CAAC,WAAW,CAAC,GAAG,SAAS,CAAC,SAAS;KACjF,CAAC;AACJ,CAAC,CAAC;AAEF,MAAM,CAAC,MAAM,mBAAmB,GAAG,CAAC,KAAiB,EAAE,OAAoB,EAAE,EAAE;IAC7E,MAAM,UAAU,GAAG,gBAAgB,CAAC,KAAK,CAAC,CAAC;IAC3C,OAAO,aAAa,CAAC,UAAU,EAAE,2BAA2B,CAAC,OAAO,CAAC,CAAC,CAAC;AACzE,CAAC,CAAC","sourcesContent":["import { MIN_HEIGHT, MIN_WIDTH } from './constants';\nimport { BoundingBox, MousePosition, SelectBox, SelectContainerHost } from './models';\n\nexport const isObject = (item: any) => {\n  return item && typeof item === 'object' && !Array.isArray(item) && item !== null;\n};\n\nexport function mergeDeep(target: Record<string, any>, source: Record<string, any>) {\n  if (isObject(target) && isObject(source)) {\n    Object.keys(source).forEach((key) => {\n      if (isObject(source[key])) {\n        if (!target[key]) {\n          Object.assign(target, { [key]: {} });\n        }\n        mergeDeep(target[key], source[key]);\n      } else {\n        Object.assign(target, { [key]: source[key] });\n      }\n    });\n  }\n\n  return target;\n}\n\nexport const hasMinimumSize = (selectBox: SelectBox<number>, minWidth = MIN_WIDTH, minHeight = MIN_HEIGHT) => {\n  return selectBox.width > minWidth || selectBox.height > minHeight;\n};\n\nexport const clearSelection = (window: Window) => {\n  const selection = window.getSelection();\n\n  if (!selection) {\n    return;\n  }\n\n  if (selection.removeAllRanges) {\n    selection.removeAllRanges();\n  } else if (selection.empty) {\n    selection.empty();\n  }\n};\n\nexport const inBoundingBox = (point: MousePosition, box: BoundingBox) => {\n  return (\n    box.left <= point.x && point.x <= box.left + box.width && box.top <= point.y && point.y <= box.top + box.height\n  );\n};\n\nexport const boxIntersects = (boxA: BoundingBox, boxB: BoundingBox) => {\n  return (\n    boxA.left <= boxB.left + boxB.width &&\n    boxA.left + boxA.width >= boxB.left &&\n    boxA.top <= boxB.top + boxB.height &&\n    boxA.top + boxA.height >= boxB.top\n  );\n};\n\nexport const calculateBoundingClientRect = (element: HTMLElement): BoundingBox => {\n  return element.getBoundingClientRect();\n};\n\nexport const getMousePosition = (event: MouseEvent) => {\n  return {\n    x: event.clientX,\n    y: event.clientY,\n  };\n};\n\nexport const getScroll = () => {\n  if (!document || !document.documentElement) {\n    return {\n      x: 0,\n      y: 0,\n    };\n  }\n\n  return {\n    x: document.documentElement.scrollLeft || document.body.scrollLeft,\n    y: document.documentElement.scrollTop || document.body.scrollTop,\n  };\n};\n\nexport const getRelativeMousePosition = (event: MouseEvent, container: SelectContainerHost): MousePosition => {\n  const { x: clientX, y: clientY } = getMousePosition(event);\n  const scroll = getScroll();\n\n  const borderSize = (container.boundingClientRect.width - container.clientWidth) / 2;\n  const offsetLeft = container.boundingClientRect.left + scroll.x;\n  const offsetTop = container.boundingClientRect.top + scroll.y;\n\n  return {\n    x: clientX - borderSize - (offsetLeft - window.pageXOffset) + container.scrollLeft,\n    y: clientY - borderSize - (offsetTop - window.pageYOffset) + container.scrollTop,\n  };\n};\n\nexport const cursorWithinElement = (event: MouseEvent, element: HTMLElement) => {\n  const mousePoint = getMousePosition(event);\n  return inBoundingBox(mousePoint, calculateBoundingClientRect(element));\n};\n"]}