source: trip-planner-front/node_modules/@angular/material/esm2015/grid-list/grid-list.js

/**
 * @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
 */
import { Component, ViewEncapsulation, Input, ContentChildren, QueryList, ElementRef, Optional, ChangeDetectionStrategy, } from '@angular/core';
import { MatGridTile } from './grid-tile';
import { TileCoordinator } from './tile-coordinator';
import { FitTileStyler, RatioTileStyler, FixedTileStyler, } from './tile-styler';
import { Directionality } from '@angular/cdk/bidi';
import { coerceNumberProperty } from '@angular/cdk/coercion';
import { MAT_GRID_LIST } from './grid-list-base';
// TODO(kara): Conditional (responsive) column count / row size.
// TODO(kara): Re-layout on window resize / media change (debounced).
// TODO(kara): gridTileHeader and gridTileFooter.
const MAT_FIT_MODE = 'fit';
export class MatGridList {
    constructor(_element, _dir) {
        this._element = _element;
        this._dir = _dir;
        /** The amount of space between tiles. This will be something like '5px' or '2em'. */
        this._gutter = '1px';
    }
    /** Amount of columns in the grid list. */
    get cols() { return this._cols; }
    set cols(value) {
        this._cols = Math.max(1, Math.round(coerceNumberProperty(value)));
    }
    /** Size of the grid list's gutter in pixels. */
    get gutterSize() { return this._gutter; }
    set gutterSize(value) { this._gutter = `${value == null ? '' : value}`; }
    /** Set internal representation of row height from the user-provided value. */
    get rowHeight() { return this._rowHeight; }
    set rowHeight(value) {
        const newValue = `${value == null ? '' : value}`;
        if (newValue !== this._rowHeight) {
            this._rowHeight = newValue;
            this._setTileStyler(this._rowHeight);
        }
    }
    ngOnInit() {
        this._checkCols();
        this._checkRowHeight();
    }
    /**
     * The layout calculation is fairly cheap if nothing changes, so there's little cost
     * to run it frequently.
     */
    ngAfterContentChecked() {
        this._layoutTiles();
    }
    /** Throw a friendly error if cols property is missing */
    _checkCols() {
        if (!this.cols && (typeof ngDevMode === 'undefined' || ngDevMode)) {
            throw Error(`mat-grid-list: must pass in number of columns. ` +
                `Example: <mat-grid-list cols="3">`);
        }
    }
    /** Default to equal width:height if rowHeight property is missing */
    _checkRowHeight() {
        if (!this._rowHeight) {
            this._setTileStyler('1:1');
        }
    }
    /** Creates correct Tile Styler subtype based on rowHeight passed in by user */
    _setTileStyler(rowHeight) {
        if (this._tileStyler) {
            this._tileStyler.reset(this);
        }
        if (rowHeight === MAT_FIT_MODE) {
            this._tileStyler = new FitTileStyler();
        }
        else if (rowHeight && rowHeight.indexOf(':') > -1) {
            this._tileStyler = new RatioTileStyler(rowHeight);
        }
        else {
            this._tileStyler = new FixedTileStyler(rowHeight);
        }
    }
    /** Computes and applies the size and position for all children grid tiles. */
    _layoutTiles() {
        if (!this._tileCoordinator) {
            this._tileCoordinator = new TileCoordinator();
        }
        const tracker = this._tileCoordinator;
        const tiles = this._tiles.filter(tile => !tile._gridList || tile._gridList === this);
        const direction = this._dir ? this._dir.value : 'ltr';
        this._tileCoordinator.update(this.cols, tiles);
        this._tileStyler.init(this.gutterSize, tracker, this.cols, direction);
        tiles.forEach((tile, index) => {
            const pos = tracker.positions[index];
            this._tileStyler.setStyle(tile, pos.row, pos.col);
        });
        this._setListStyle(this._tileStyler.getComputedHeight());
    }
    /** Sets style on the main grid-list element, given the style name and value. */
    _setListStyle(style) {
        if (style) {
            this._element.nativeElement.style[style[0]] = style[1];
        }
    }
}
MatGridList.decorators = [
    { type: Component, args: [{
                selector: 'mat-grid-list',
                exportAs: 'matGridList',
                template: "<div>\n  <ng-content></ng-content>\n</div>",
                host: {
                    'class': 'mat-grid-list',
                    // Ensures that the "cols" input value is reflected in the DOM. This is
                    // needed for the grid-list harness.
                    '[attr.cols]': 'cols',
                },
                providers: [{
                        provide: MAT_GRID_LIST,
                        useExisting: MatGridList
                    }],
                changeDetection: ChangeDetectionStrategy.OnPush,
                encapsulation: ViewEncapsulation.None,
                styles: [".mat-grid-list{display:block;position:relative}.mat-grid-tile{display:block;position:absolute;overflow:hidden}.mat-grid-tile .mat-grid-tile-header,.mat-grid-tile .mat-grid-tile-footer{display:flex;align-items:center;height:48px;color:#fff;background:rgba(0,0,0,.38);overflow:hidden;padding:0 16px;position:absolute;left:0;right:0}.mat-grid-tile .mat-grid-tile-header>*,.mat-grid-tile .mat-grid-tile-footer>*{margin:0;padding:0;font-weight:normal;font-size:inherit}.mat-grid-tile .mat-grid-tile-header.mat-2-line,.mat-grid-tile .mat-grid-tile-footer.mat-2-line{height:68px}.mat-grid-tile .mat-grid-list-text{display:flex;flex-direction:column;flex:auto;box-sizing:border-box;overflow:hidden}.mat-grid-tile .mat-grid-list-text>*{margin:0;padding:0;font-weight:normal;font-size:inherit}.mat-grid-tile .mat-grid-list-text:empty{display:none}.mat-grid-tile .mat-grid-tile-header{top:0}.mat-grid-tile .mat-grid-tile-footer{bottom:0}.mat-grid-tile .mat-grid-avatar{padding-right:16px}[dir=rtl] .mat-grid-tile .mat-grid-avatar{padding-right:0;padding-left:16px}.mat-grid-tile .mat-grid-avatar:empty{display:none}.mat-grid-tile-content{top:0;left:0;right:0;bottom:0;position:absolute;display:flex;align-items:center;justify-content:center;height:100%;padding:0;margin:0}\n"]
            },] }
];
MatGridList.ctorParameters = () => [
    { type: ElementRef },
    { type: Directionality, decorators: [{ type: Optional }] }
];
MatGridList.propDecorators = {
    _tiles: [{ type: ContentChildren, args: [MatGridTile, { descendants: true },] }],
    cols: [{ type: Input }],
    gutterSize: [{ type: Input }],
    rowHeight: [{ type: Input }]
};
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {\n  Component,\n  ViewEncapsulation,\n  AfterContentChecked,\n  OnInit,\n  Input,\n  ContentChildren,\n  QueryList,\n  ElementRef,\n  Optional,\n  ChangeDetectionStrategy,\n} from '@angular/core';\nimport {MatGridTile} from './grid-tile';\nimport {TileCoordinator} from './tile-coordinator';\nimport {\n  TileStyler,\n  FitTileStyler,\n  RatioTileStyler,\n  FixedTileStyler,\n  TileStyleTarget,\n} from './tile-styler';\nimport {Directionality} from '@angular/cdk/bidi';\nimport {coerceNumberProperty, NumberInput} from '@angular/cdk/coercion';\nimport {MAT_GRID_LIST, MatGridListBase} from './grid-list-base';\n\n\n// TODO(kara): Conditional (responsive) column count / row size.\n// TODO(kara): Re-layout on window resize / media change (debounced).\n// TODO(kara): gridTileHeader and gridTileFooter.\n\nconst MAT_FIT_MODE = 'fit';\n\n@Component({\n  selector: 'mat-grid-list',\n  exportAs: 'matGridList',\n  templateUrl: 'grid-list.html',\n  styleUrls: ['grid-list.css'],\n  host: {\n    'class': 'mat-grid-list',\n    // Ensures that the \"cols\" input value is reflected in the DOM. This is\n    // needed for the grid-list harness.\n    '[attr.cols]': 'cols',\n  },\n  providers: [{\n    provide: MAT_GRID_LIST,\n    useExisting: MatGridList\n  }],\n  changeDetection: ChangeDetectionStrategy.OnPush,\n  encapsulation: ViewEncapsulation.None,\n})\nexport class MatGridList implements MatGridListBase, OnInit, AfterContentChecked, TileStyleTarget {\n  /** Number of columns being rendered. */\n  private _cols: number;\n\n  /** Used for determiningthe position of each tile in the grid. */\n  private _tileCoordinator: TileCoordinator;\n\n  /**\n   * Row height value passed in by user. This can be one of three types:\n   * - Number value (ex: \"100px\"):  sets a fixed row height to that value\n   * - Ratio value (ex: \"4:3\"): sets the row height based on width:height ratio\n   * - \"Fit\" mode (ex: \"fit\"): sets the row height to total height divided by number of rows\n   */\n  private _rowHeight: string;\n\n  /** The amount of space between tiles. This will be something like '5px' or '2em'. */\n  private _gutter: string = '1px';\n\n  /** Sets position and size styles for a tile */\n  private _tileStyler: TileStyler;\n\n  /** Query list of tiles that are being rendered. */\n  @ContentChildren(MatGridTile, {descendants: true}) _tiles: QueryList<MatGridTile>;\n\n  constructor(private _element: ElementRef<HTMLElement>,\n              @Optional() private _dir: Directionality) {}\n\n  /** Amount of columns in the grid list. */\n  @Input()\n  get cols(): number { return this._cols; }\n  set cols(value: number) {\n    this._cols = Math.max(1, Math.round(coerceNumberProperty(value)));\n  }\n\n  /** Size of the grid list's gutter in pixels. */\n  @Input()\n  get gutterSize(): string { return this._gutter; }\n  set gutterSize(value: string) { this._gutter = `${value == null ? '' : value}`; }\n\n  /** Set internal representation of row height from the user-provided value. */\n  @Input()\n  get rowHeight(): string | number { return this._rowHeight; }\n  set rowHeight(value: string | number) {\n    const newValue = `${value == null ? '' : value}`;\n\n    if (newValue !== this._rowHeight) {\n      this._rowHeight = newValue;\n      this._setTileStyler(this._rowHeight);\n    }\n  }\n\n  ngOnInit() {\n    this._checkCols();\n    this._checkRowHeight();\n  }\n\n  /**\n   * The layout calculation is fairly cheap if nothing changes, so there's little cost\n   * to run it frequently.\n   */\n  ngAfterContentChecked() {\n    this._layoutTiles();\n  }\n\n  /** Throw a friendly error if cols property is missing */\n  private _checkCols() {\n    if (!this.cols && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n      throw Error(`mat-grid-list: must pass in number of columns. ` +\n                  `Example: <mat-grid-list cols=\"3\">`);\n    }\n  }\n\n  /** Default to equal width:height if rowHeight property is missing */\n  private _checkRowHeight(): void {\n    if (!this._rowHeight) {\n      this._setTileStyler('1:1');\n    }\n  }\n\n  /** Creates correct Tile Styler subtype based on rowHeight passed in by user */\n  private _setTileStyler(rowHeight: string): void {\n    if (this._tileStyler) {\n      this._tileStyler.reset(this);\n    }\n\n    if (rowHeight === MAT_FIT_MODE) {\n      this._tileStyler = new FitTileStyler();\n    } else if (rowHeight && rowHeight.indexOf(':') > -1) {\n      this._tileStyler = new RatioTileStyler(rowHeight);\n    } else {\n      this._tileStyler = new FixedTileStyler(rowHeight);\n    }\n  }\n\n  /** Computes and applies the size and position for all children grid tiles. */\n  private _layoutTiles(): void {\n    if (!this._tileCoordinator) {\n      this._tileCoordinator = new TileCoordinator();\n    }\n\n\n    const tracker = this._tileCoordinator;\n    const tiles = this._tiles.filter(tile => !tile._gridList || tile._gridList === this);\n    const direction = this._dir ? this._dir.value : 'ltr';\n\n    this._tileCoordinator.update(this.cols, tiles);\n    this._tileStyler.init(this.gutterSize, tracker, this.cols, direction);\n\n    tiles.forEach((tile, index) => {\n      const pos = tracker.positions[index];\n      this._tileStyler.setStyle(tile, pos.row, pos.col);\n    });\n\n    this._setListStyle(this._tileStyler.getComputedHeight());\n  }\n\n  /** Sets style on the main grid-list element, given the style name and value. */\n  _setListStyle(style: [string, string | null] | null): void {\n    if (style) {\n      (this._element.nativeElement.style as any)[style[0]] = style[1];\n    }\n  }\n\n  static ngAcceptInputType_cols: NumberInput;\n}\n"]}