ngx-bootstrap
Version:
Native Angular Bootstrap Components
300 lines (299 loc) • 33.1 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes} checked by tsc
*/
/**
* @copyright Valor Software
* @copyright Angular ng-bootstrap team
*/
var Positioning = /** @class */ (function () {
function Positioning() {
}
/**
* @param {?} element
* @param {?=} round
* @return {?}
*/
Positioning.prototype.position = /**
* @param {?} element
* @param {?=} round
* @return {?}
*/
function (element, round) {
if (round === void 0) { round = true; }
var /** @type {?} */ elPosition;
var /** @type {?} */ parentOffset = {
width: 0,
height: 0,
top: 0,
bottom: 0,
left: 0,
right: 0
};
if (this.getStyle(element, 'position') === 'fixed') {
var /** @type {?} */ bcRect = element.getBoundingClientRect();
elPosition = {
width: bcRect.width,
height: bcRect.height,
top: bcRect.top,
bottom: bcRect.bottom,
left: bcRect.left,
right: bcRect.right
};
}
else {
var /** @type {?} */ offsetParentEl = this.offsetParent(element);
elPosition = this.offset(element, false);
if (offsetParentEl !== document.documentElement) {
parentOffset = this.offset(offsetParentEl, false);
}
parentOffset.top += offsetParentEl.clientTop;
parentOffset.left += offsetParentEl.clientLeft;
}
elPosition.top -= parentOffset.top;
elPosition.bottom -= parentOffset.top;
elPosition.left -= parentOffset.left;
elPosition.right -= parentOffset.left;
if (round) {
elPosition.top = Math.round(elPosition.top);
elPosition.bottom = Math.round(elPosition.bottom);
elPosition.left = Math.round(elPosition.left);
elPosition.right = Math.round(elPosition.right);
}
return elPosition;
};
/**
* @param {?} element
* @param {?=} round
* @return {?}
*/
Positioning.prototype.offset = /**
* @param {?} element
* @param {?=} round
* @return {?}
*/
function (element, round) {
if (round === void 0) { round = true; }
var /** @type {?} */ elBcr = element.getBoundingClientRect();
var /** @type {?} */ viewportOffset = {
top: window.pageYOffset - document.documentElement.clientTop,
left: window.pageXOffset - document.documentElement.clientLeft
};
var /** @type {?} */ elOffset = {
height: elBcr.height || element.offsetHeight,
width: elBcr.width || element.offsetWidth,
top: elBcr.top + viewportOffset.top,
bottom: elBcr.bottom + viewportOffset.top,
left: elBcr.left + viewportOffset.left,
right: elBcr.right + viewportOffset.left
};
if (round) {
elOffset.height = Math.round(elOffset.height);
elOffset.width = Math.round(elOffset.width);
elOffset.top = Math.round(elOffset.top);
elOffset.bottom = Math.round(elOffset.bottom);
elOffset.left = Math.round(elOffset.left);
elOffset.right = Math.round(elOffset.right);
}
return elOffset;
};
/**
* @param {?} hostElement
* @param {?} targetElement
* @param {?} placement
* @param {?=} appendToBody
* @return {?}
*/
Positioning.prototype.positionElements = /**
* @param {?} hostElement
* @param {?} targetElement
* @param {?} placement
* @param {?=} appendToBody
* @return {?}
*/
function (hostElement, targetElement, placement, appendToBody) {
var /** @type {?} */ hostElPosition = appendToBody
? this.offset(hostElement, false)
: this.position(hostElement, false);
var /** @type {?} */ targetElStyles = this.getAllStyles(targetElement);
var /** @type {?} */ targetElBCR = targetElement.getBoundingClientRect();
var /** @type {?} */ placementPrimary = placement.split(' ')[0] || 'top';
var /** @type {?} */ placementSecondary = placement.split(' ')[1] || 'center';
var /** @type {?} */ targetElPosition = {
height: targetElBCR.height || targetElement.offsetHeight,
width: targetElBCR.width || targetElement.offsetWidth,
top: 0,
bottom: targetElBCR.height || targetElement.offsetHeight,
left: 0,
right: targetElBCR.width || targetElement.offsetWidth
};
var /** @type {?} */ shiftHeight = {
top: hostElPosition.top,
center: hostElPosition.top +
hostElPosition.height / 2 -
targetElPosition.height / 2,
bottom: hostElPosition.top + hostElPosition.height
};
var /** @type {?} */ shiftWidth = {
left: hostElPosition.left,
center: hostElPosition.left +
hostElPosition.width / 2 -
targetElPosition.width / 2,
right: hostElPosition.left + hostElPosition.width
};
if (placementPrimary === 'auto') {
var /** @type {?} */ newPlacementPrimary = this.autoPosition(targetElPosition, hostElPosition, targetElement, placementSecondary);
if (!newPlacementPrimary)
newPlacementPrimary = this.autoPosition(targetElPosition, hostElPosition, targetElement);
if (newPlacementPrimary)
placementPrimary = newPlacementPrimary;
targetElement.classList.add(placementPrimary);
}
switch (placementPrimary) {
case 'top':
targetElPosition.top =
hostElPosition.top -
(targetElPosition.height +
parseFloat(targetElStyles.marginBottom));
targetElPosition.bottom +=
hostElPosition.top - targetElPosition.height;
targetElPosition.left = shiftWidth[placementSecondary];
targetElPosition.right += shiftWidth[placementSecondary];
break;
case 'bottom':
targetElPosition.top = shiftHeight[placementPrimary];
targetElPosition.bottom += shiftHeight[placementPrimary];
targetElPosition.left = shiftWidth[placementSecondary];
targetElPosition.right += shiftWidth[placementSecondary];
break;
case 'left':
targetElPosition.top = shiftHeight[placementSecondary];
targetElPosition.bottom += shiftHeight[placementSecondary];
targetElPosition.left =
hostElPosition.left -
(targetElPosition.width + parseFloat(targetElStyles.marginRight));
targetElPosition.right +=
hostElPosition.left - targetElPosition.width;
break;
case 'right':
targetElPosition.top = shiftHeight[placementSecondary];
targetElPosition.bottom += shiftHeight[placementSecondary];
targetElPosition.left = shiftWidth[placementPrimary];
targetElPosition.right += shiftWidth[placementPrimary];
break;
}
targetElPosition.top = Math.round(targetElPosition.top);
targetElPosition.bottom = Math.round(targetElPosition.bottom);
targetElPosition.left = Math.round(targetElPosition.left);
targetElPosition.right = Math.round(targetElPosition.right);
return targetElPosition;
};
/**
* @param {?} targetElPosition
* @param {?} hostElPosition
* @param {?} targetElement
* @param {?=} preferredPosition
* @return {?}
*/
Positioning.prototype.autoPosition = /**
* @param {?} targetElPosition
* @param {?} hostElPosition
* @param {?} targetElement
* @param {?=} preferredPosition
* @return {?}
*/
function (targetElPosition, hostElPosition, targetElement, preferredPosition) {
if ((!preferredPosition || preferredPosition === 'right') &&
targetElPosition.left + hostElPosition.left - targetElPosition.width <
0) {
return 'right';
}
else if ((!preferredPosition || preferredPosition === 'top') &&
targetElPosition.bottom +
hostElPosition.bottom +
targetElPosition.height >
window.innerHeight) {
return 'top';
}
else if ((!preferredPosition || preferredPosition === 'bottom') &&
targetElPosition.top + hostElPosition.top - targetElPosition.height < 0) {
return 'bottom';
}
else if ((!preferredPosition || preferredPosition === 'left') &&
targetElPosition.right +
hostElPosition.right +
targetElPosition.width >
window.innerWidth) {
return 'left';
}
return null;
};
/**
* @param {?} element
* @return {?}
*/
Positioning.prototype.getAllStyles = /**
* @param {?} element
* @return {?}
*/
function (element) {
return window.getComputedStyle(element);
};
/**
* @param {?} element
* @param {?} prop
* @return {?}
*/
Positioning.prototype.getStyle = /**
* @param {?} element
* @param {?} prop
* @return {?}
*/
function (element, prop) {
return (/** @type {?} */ (this.getAllStyles(element)))[prop];
};
/**
* @param {?} element
* @return {?}
*/
Positioning.prototype.isStaticPositioned = /**
* @param {?} element
* @return {?}
*/
function (element) {
return (this.getStyle(element, 'position') || 'static') === 'static';
};
/**
* @param {?} element
* @return {?}
*/
Positioning.prototype.offsetParent = /**
* @param {?} element
* @return {?}
*/
function (element) {
var /** @type {?} */ offsetParentEl = /** @type {?} */ (element.offsetParent) || document.documentElement;
while (offsetParentEl &&
offsetParentEl !== document.documentElement &&
this.isStaticPositioned(offsetParentEl)) {
offsetParentEl = /** @type {?} */ (offsetParentEl.offsetParent);
}
return offsetParentEl || document.documentElement;
};
return Positioning;
}());
export { Positioning };
var /** @type {?} */ positionService = new Positioning();
/**
* @param {?} hostElement
* @param {?} targetElement
* @param {?} placement
* @param {?=} appendToBody
* @return {?}
*/
export function positionElements(hostElement, targetElement, placement, appendToBody) {
var /** @type {?} */ pos = positionService.positionElements(hostElement, targetElement, placement, appendToBody);
targetElement.style.top = pos.top + "px";
targetElement.style.left = pos.left + "px";
}
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* @copyright Valor Software\n * @copyright Angular ng-bootstrap team\n */\n\n// previous version:\n// https://github.com/angular-ui/bootstrap/blob/07c31d0731f7cb068a1932b8e01d2312b796b4ec/src/position/position.js\n// tslint:disable\nexport class Positioning {\n  public position(element: HTMLElement, round = true): ClientRect {\n    let elPosition: ClientRect;\n    let parentOffset: ClientRect = {\n      width: 0,\n      height: 0,\n      top: 0,\n      bottom: 0,\n      left: 0,\n      right: 0\n    };\n\n    if (this.getStyle(element, 'position') === 'fixed') {\n      const bcRect = element.getBoundingClientRect();\n      elPosition = {\n        width: bcRect.width,\n        height: bcRect.height,\n        top: bcRect.top,\n        bottom: bcRect.bottom,\n        left: bcRect.left,\n        right: bcRect.right\n      };\n    } else {\n      const offsetParentEl = this.offsetParent(element);\n\n      elPosition = this.offset(element, false);\n\n      if (offsetParentEl !== document.documentElement) {\n        parentOffset = this.offset(offsetParentEl, false);\n      }\n\n      parentOffset.top += offsetParentEl.clientTop;\n      parentOffset.left += offsetParentEl.clientLeft;\n    }\n\n    elPosition.top -= parentOffset.top;\n    elPosition.bottom -= parentOffset.top;\n    elPosition.left -= parentOffset.left;\n    elPosition.right -= parentOffset.left;\n\n    if (round) {\n      elPosition.top = Math.round(elPosition.top);\n      elPosition.bottom = Math.round(elPosition.bottom);\n      elPosition.left = Math.round(elPosition.left);\n      elPosition.right = Math.round(elPosition.right);\n    }\n\n    return elPosition;\n  }\n\n  public offset(element: HTMLElement, round = true): ClientRect {\n    const elBcr = element.getBoundingClientRect();\n    const viewportOffset = {\n      top: window.pageYOffset - document.documentElement.clientTop,\n      left: window.pageXOffset - document.documentElement.clientLeft\n    };\n\n    let elOffset = {\n      height: elBcr.height || element.offsetHeight,\n      width: elBcr.width || element.offsetWidth,\n      top: elBcr.top + viewportOffset.top,\n      bottom: elBcr.bottom + viewportOffset.top,\n      left: elBcr.left + viewportOffset.left,\n      right: elBcr.right + viewportOffset.left\n    };\n\n    if (round) {\n      elOffset.height = Math.round(elOffset.height);\n      elOffset.width = Math.round(elOffset.width);\n      elOffset.top = Math.round(elOffset.top);\n      elOffset.bottom = Math.round(elOffset.bottom);\n      elOffset.left = Math.round(elOffset.left);\n      elOffset.right = Math.round(elOffset.right);\n    }\n\n    return elOffset;\n  }\n\n  public positionElements(\n    hostElement: HTMLElement,\n    targetElement: HTMLElement,\n    placement: string,\n    appendToBody?: boolean\n  ): ClientRect {\n    const hostElPosition = appendToBody\n      ? this.offset(hostElement, false)\n      : this.position(hostElement, false);\n    const targetElStyles = this.getAllStyles(targetElement);\n    const targetElBCR = targetElement.getBoundingClientRect();\n    let placementPrimary = placement.split(' ')[0] || 'top';\n    const placementSecondary = placement.split(' ')[1] || 'center';\n\n    let targetElPosition: ClientRect = {\n      height: targetElBCR.height || targetElement.offsetHeight,\n      width: targetElBCR.width || targetElement.offsetWidth,\n      top: 0,\n      bottom: targetElBCR.height || targetElement.offsetHeight,\n      left: 0,\n      right: targetElBCR.width || targetElement.offsetWidth\n    };\n\n    const shiftHeight: any = {\n      top: hostElPosition.top,\n      center:\n        hostElPosition.top +\n        hostElPosition.height / 2 -\n        targetElPosition.height / 2,\n      bottom: hostElPosition.top + hostElPosition.height\n    };\n    const shiftWidth: any = {\n      left: hostElPosition.left,\n      center:\n        hostElPosition.left +\n        hostElPosition.width / 2 -\n        targetElPosition.width / 2,\n      right: hostElPosition.left + hostElPosition.width\n    };    \n\n    if (placementPrimary === 'auto') {\n      let newPlacementPrimary = this.autoPosition(\n        targetElPosition,\n        hostElPosition,\n        targetElement,\n        placementSecondary\n      );\n      if (!newPlacementPrimary)\n        newPlacementPrimary = this.autoPosition(\n          targetElPosition,\n          hostElPosition,\n          targetElement\n        );\n      if (newPlacementPrimary) placementPrimary = newPlacementPrimary;\n      targetElement.classList.add(placementPrimary);\n    }\n\n    switch (placementPrimary) {\n      case 'top':\n        targetElPosition.top =\n          hostElPosition.top -\n          (targetElPosition.height +\n            parseFloat(targetElStyles.marginBottom));\n        targetElPosition.bottom +=\n          hostElPosition.top - targetElPosition.height;\n        targetElPosition.left = shiftWidth[placementSecondary];\n        targetElPosition.right += shiftWidth[placementSecondary];\n        break;\n      case 'bottom':\n        targetElPosition.top = shiftHeight[placementPrimary];\n        targetElPosition.bottom += shiftHeight[placementPrimary];\n        targetElPosition.left = shiftWidth[placementSecondary];\n        targetElPosition.right += shiftWidth[placementSecondary];\n        break;\n      case 'left':\n        targetElPosition.top = shiftHeight[placementSecondary];\n        targetElPosition.bottom += shiftHeight[placementSecondary];\n        targetElPosition.left =\n          hostElPosition.left -\n          (targetElPosition.width + parseFloat(targetElStyles.marginRight));\n        targetElPosition.right +=\n          hostElPosition.left - targetElPosition.width;\n        break;\n      case 'right':\n        targetElPosition.top = shiftHeight[placementSecondary];\n        targetElPosition.bottom += shiftHeight[placementSecondary];\n        targetElPosition.left = shiftWidth[placementPrimary];\n        targetElPosition.right += shiftWidth[placementPrimary];\n        break;\n    }\n\n    targetElPosition.top = Math.round(targetElPosition.top);\n    targetElPosition.bottom = Math.round(targetElPosition.bottom);\n    targetElPosition.left = Math.round(targetElPosition.left);\n    targetElPosition.right = Math.round(targetElPosition.right);\n\n    return targetElPosition;\n  }\n\n  private autoPosition(\n    targetElPosition: ClientRect,\n    hostElPosition: ClientRect,\n    targetElement: HTMLElement,\n    preferredPosition?: string\n  ) {\n    if (\n      (!preferredPosition || preferredPosition === 'right') &&\n      targetElPosition.left + hostElPosition.left - targetElPosition.width <\n        0\n    ) {\n      return 'right';\n    } else if (\n      (!preferredPosition || preferredPosition === 'top') &&\n      targetElPosition.bottom +\n        hostElPosition.bottom +\n        targetElPosition.height >\n        window.innerHeight\n    ) {\n      return 'top';\n    } else if (\n      (!preferredPosition || preferredPosition === 'bottom') &&\n      targetElPosition.top + hostElPosition.top - targetElPosition.height < 0\n    ) {\n      return 'bottom';\n    } else if (\n      (!preferredPosition || preferredPosition === 'left') &&\n      targetElPosition.right +\n        hostElPosition.right +\n        targetElPosition.width >\n        window.innerWidth\n    ) {\n      return 'left';\n    }\n    return null;\n  }\n\n  private getAllStyles(element: HTMLElement) {\n    return window.getComputedStyle(element);\n  }\n\n  private getStyle(element: HTMLElement, prop: string): string {\n    return (this.getAllStyles(element) as any)[prop];\n  }\n\n  private isStaticPositioned(element: HTMLElement): boolean {\n    return (this.getStyle(element, 'position') || 'static') === 'static';\n  }\n\n  private offsetParent(element: HTMLElement): HTMLElement {\n    let offsetParentEl =\n      <HTMLElement>element.offsetParent || document.documentElement;\n\n    while (\n      offsetParentEl &&\n      offsetParentEl !== document.documentElement &&\n      this.isStaticPositioned(offsetParentEl)\n    ) {\n      offsetParentEl = <HTMLElement>offsetParentEl.offsetParent;\n    }\n\n    return offsetParentEl || document.documentElement;\n  }\n}\n\nconst positionService = new Positioning();\n\nexport function positionElements(\n  hostElement: HTMLElement,\n  targetElement: HTMLElement,\n  placement: string,\n  appendToBody?: boolean\n): void {\n  const pos = positionService.positionElements(\n    hostElement,\n    targetElement,\n    placement,\n    appendToBody\n  );\n\n  targetElement.style.top = `${pos.top}px`;\n  targetElement.style.left = `${pos.left}px`;\n}\n"]}