@angular/cdk
Version:
Angular Material Component Development Kit
88 lines • 11.7 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
/** The points of the origin element and the overlay element to connect. */
export class ConnectionPositionPair {
constructor(origin, overlay,
/** Offset along the X axis. */
offsetX,
/** Offset along the Y axis. */
offsetY,
/** Class(es) to be applied to the panel while this position is active. */
panelClass) {
this.offsetX = offsetX;
this.offsetY = offsetY;
this.panelClass = panelClass;
this.originX = origin.originX;
this.originY = origin.originY;
this.overlayX = overlay.overlayX;
this.overlayY = overlay.overlayY;
}
}
/**
* Set of properties regarding the position of the origin and overlay relative to the viewport
* with respect to the containing Scrollable elements.
*
* The overlay and origin are clipped if any part of their bounding client rectangle exceeds the
* bounds of any one of the strategy's Scrollable's bounding client rectangle.
*
* The overlay and origin are outside view if there is no overlap between their bounding client
* rectangle and any one of the strategy's Scrollable's bounding client rectangle.
*
* ----------- -----------
* | outside | | clipped |
* | view | --------------------------
* | | | | | |
* ---------- | ----------- |
* -------------------------- | |
* | | | Scrollable |
* | | | |
* | | --------------------------
* | Scrollable |
* | |
* --------------------------
*
* @docs-private
*/
export class ScrollingVisibility {
}
/** The change event emitted by the strategy when a fallback position is used. */
export class ConnectedOverlayPositionChange {
constructor(
/** The position used as a result of this change. */
connectionPair,
/** @docs-private */
scrollableViewProperties) {
this.connectionPair = connectionPair;
this.scrollableViewProperties = scrollableViewProperties;
}
}
/**
* Validates whether a vertical position property matches the expected values.
* @param property Name of the property being validated.
* @param value Value of the property being validated.
* @docs-private
*/
export function validateVerticalPosition(property, value) {
if (value !== 'top' && value !== 'bottom' && value !== 'center') {
throw Error(`ConnectedPosition: Invalid ${property} "${value}". ` +
`Expected "top", "bottom" or "center".`);
}
}
/**
* Validates whether a horizontal position property matches the expected values.
* @param property Name of the property being validated.
* @param value Value of the property being validated.
* @docs-private
*/
export function validateHorizontalPosition(property, value) {
if (value !== 'start' && value !== 'end' && value !== 'center') {
throw Error(`ConnectedPosition: Invalid ${property} "${value}". ` +
`Expected "start", "end" or "center".`);
}
}
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Can be 'start', 'end', or 'center'. */\n  originX: HorizontalConnectionPos;\n  /** Y-axis attachment point for connected overlay origin. Can be 'top', 'bottom', or 'center'. */\n  originY: VerticalConnectionPos;\n  /** X-axis attachment point for connected overlay. Can be 'start', 'end', or 'center'. */\n  overlayX: HorizontalConnectionPos;\n  /** Y-axis attachment point for connected overlay. Can be 'top', 'bottom', or 'center'. */\n  overlayY: VerticalConnectionPos;\n\n  constructor(\n    origin: OriginConnectionPosition,\n    overlay: OverlayConnectionPosition,\n    /** Offset along the X axis. */\n    public offsetX?: number,\n    /** Offset along the Y axis. */\n    public offsetY?: number,\n    /** Class(es) to be applied to the panel while this position is active. */\n    public panelClass?: string | string[],\n  ) {\n    this.originX = origin.originX;\n    this.originY = origin.originY;\n    this.overlayX = overlay.overlayX;\n    this.overlayY = overlay.overlayY;\n  }\n}\n\n/**\n * Set of properties regarding the position of the origin and overlay relative to the viewport\n * with respect to the containing Scrollable elements.\n *\n * The overlay and origin are clipped if any part of their bounding client rectangle exceeds the\n * bounds of any one of the strategy's Scrollable's bounding client rectangle.\n *\n * The overlay and origin are outside view if there is no overlap between their bounding client\n * rectangle and any one of the strategy's Scrollable's bounding client rectangle.\n *\n *       -----------                    -----------\n *       | outside |                    | clipped |\n *       |  view   |              --------------------------\n *       |         |              |     |         |        |\n *       ----------               |     -----------        |\n *  --------------------------    |                        |\n *  |                        |    |      Scrollable        |\n *  |                        |    |                        |\n *  |                        |     --------------------------\n *  |      Scrollable        |\n *  |                        |\n *  --------------------------\n *\n *  @docs-private\n */\nexport class ScrollingVisibility {\n  isOriginClipped: boolean;\n  isOriginOutsideView: boolean;\n  isOverlayClipped: boolean;\n  isOverlayOutsideView: boolean;\n}\n\n/** The change event emitted by the strategy when a fallback position is used. */\nexport class ConnectedOverlayPositionChange {\n  constructor(\n    /** The position used as a result of this change. */\n    public connectionPair: ConnectionPositionPair,\n    /** @docs-private */\n    public scrollableViewProperties: ScrollingVisibility,\n  ) {}\n}\n\n/**\n * Validates whether a vertical position property matches the expected values.\n * @param property Name of the property being validated.\n * @param value Value of the property being validated.\n * @docs-private\n */\nexport function validateVerticalPosition(property: string, value: VerticalConnectionPos) {\n  if (value !== 'top' && value !== 'bottom' && value !== 'center') {\n    throw Error(\n      `ConnectedPosition: Invalid ${property} \"${value}\". ` +\n        `Expected \"top\", \"bottom\" or \"center\".`,\n    );\n  }\n}\n\n/**\n * Validates whether a horizontal position property matches the expected values.\n * @param property Name of the property being validated.\n * @param value Value of the property being validated.\n * @docs-private\n */\nexport function validateHorizontalPosition(property: string, value: HorizontalConnectionPos) {\n  if (value !== 'start' && value !== 'end' && value !== 'center') {\n    throw Error(\n      `ConnectedPosition: Invalid ${property} \"${value}\". ` +\n        `Expected \"start\", \"end\" or \"center\".`,\n    );\n  }\n}\n"]}