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94 lines
12 KiB
94 lines
12 KiB
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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/** Horizontal dimension of a connection point on the perimeter of the origin or overlay element. */
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import { Optional } from '@angular/core';
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/** The points of the origin element and the overlay element to connect. */
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export class ConnectionPositionPair {
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constructor(origin, overlay,
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/** Offset along the X axis. */
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offsetX,
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/** Offset along the Y axis. */
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offsetY,
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/** Class(es) to be applied to the panel while this position is active. */
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panelClass) {
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this.offsetX = offsetX;
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this.offsetY = offsetY;
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this.panelClass = panelClass;
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this.originX = origin.originX;
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this.originY = origin.originY;
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this.overlayX = overlay.overlayX;
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this.overlayY = overlay.overlayY;
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}
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}
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/**
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* Set of properties regarding the position of the origin and overlay relative to the viewport
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* with respect to the containing Scrollable elements.
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*
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* The overlay and origin are clipped if any part of their bounding client rectangle exceeds the
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* bounds of any one of the strategy's Scrollable's bounding client rectangle.
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*
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* The overlay and origin are outside view if there is no overlap between their bounding client
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* rectangle and any one of the strategy's Scrollable's bounding client rectangle.
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*
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* ----------- -----------
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* | outside | | clipped |
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* | view | --------------------------
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* | | | | | |
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* ---------- | ----------- |
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* -------------------------- | |
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* | | | Scrollable |
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* | | | |
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* | | --------------------------
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* | Scrollable |
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* | |
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* --------------------------
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*
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* @docs-private
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*/
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export class ScrollingVisibility {
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}
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/** The change event emitted by the strategy when a fallback position is used. */
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export class ConnectedOverlayPositionChange {
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constructor(
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/** The position used as a result of this change. */
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connectionPair,
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/** @docs-private */
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scrollableViewProperties) {
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this.connectionPair = connectionPair;
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this.scrollableViewProperties = scrollableViewProperties;
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}
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}
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ConnectedOverlayPositionChange.ctorParameters = () => [
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{ type: ConnectionPositionPair },
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{ type: ScrollingVisibility, decorators: [{ type: Optional }] }
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];
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/**
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* Validates whether a vertical position property matches the expected values.
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* @param property Name of the property being validated.
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* @param value Value of the property being validated.
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* @docs-private
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*/
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export function validateVerticalPosition(property, value) {
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if (value !== 'top' && value !== 'bottom' && value !== 'center') {
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throw Error(`ConnectedPosition: Invalid ${property} "${value}". ` +
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`Expected "top", "bottom" or "center".`);
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}
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}
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/**
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* Validates whether a horizontal position property matches the expected values.
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* @param property Name of the property being validated.
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* @param value Value of the property being validated.
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* @docs-private
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*/
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export function validateHorizontalPosition(property, value) {
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if (value !== 'start' && value !== 'end' && value !== 'center') {
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throw Error(`ConnectedPosition: Invalid ${property} "${value}". ` +
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`Expected "start", "end" or "center".`);
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}
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}
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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      @Optional() public scrollableViewProperties: ScrollingVisibility) {}\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(`ConnectedPosition: Invalid ${property} \"${value}\". ` +\n                `Expected \"top\", \"bottom\" or \"center\".`);\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(`ConnectedPosition: Invalid ${property} \"${value}\". ` +\n                `Expected \"start\", \"end\" or \"center\".`);\n  }\n}\n"]}
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