ngx-extended-pdf-viewer/esm2015/lib/toolbar/pdf-zoom-toolbar/pdf-zoom-dropdown/pdf-zoom-dropdown.component.js

Embedding PDF files in your Angular application. Highly configurable viewer including the toolbar, sidebar, and all the features you're used to.

import { Component, ViewChild, Input, ElementRef } from '@angular/core';
export class PdfZoomDropdownComponent {
    constructor(element) {
        this.element = element;
        this._zoomLevels = [];
    }
    // ['auto', 'page-actual', 'page-fit', 'page-width', 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4];
    set zoomLevels(levels) {
        this._zoomLevels = levels.map((l) => this.valueToZoomLevel(l));
    }
    ngOnInit() {
        if (typeof document !== 'undefined') {
            const callback = (e) => {
                document.removeEventListener('localized', callback);
            };
            document.addEventListener('localized', callback);
        }
    }
    valueToZoomLevel(value) {
        if (value.toString().endsWith('%')) {
            value = value.toString().replace('%', '');
            value = Number(value) / 100;
        }
        const numericalValue = Number(value);
        if (!numericalValue) {
            const v = String(value);
            return {
                id: this.snakeToCamel(value + 'Option'),
                value: v,
                dataL10nId: 'page_scale_' + v.replace('page-', ''),
                dataL10nArgs: undefined,
                displayValue: v,
            };
        }
        const percentage = Math.round(numericalValue * 100);
        return {
            id: `scale_${percentage}`,
            value: String(numericalValue),
            dataL10nId: 'page_scale_percent',
            dataL10nArgs: `{ "scale": ${percentage} }`,
            displayValue: String(percentage) + '%',
        };
    }
    snakeToCamel(str) {
        // idea found here: https://hisk.io/javascript-snake-to-camel/
        return str.replace(/([-_][a-z])/g, (group) => group.toUpperCase().replace('-', '').replace('_', ''));
    }
}
PdfZoomDropdownComponent.decorators = [
    { type: Component, args: [{
                selector: 'pdf-zoom-dropdown',
                template: "<span id=\"scaleSelectContainer\">\n  <select\n    id=\"scaleSelect\"\n    title=\"Zoom\"\n    data-l10n-id=\"zoom\"\n    #sizeSelector\n  >\n    <option *ngFor=\"let level of _zoomLevels\"\n      [id]=\"level.id\"\n      [attr.value]=\"level.value\"\n      [attr.data-l10n-id]=\"level.dataL10nId\"\n      [attr.data-l10n-args]=\"level.dataL10nArgs\">\n      {{level.displayValue}}\n    </option>\n    <option\n    id=\"customScaleOption\"\n    title=\"\"\n    value=\"custom\"\n    disabled=\"disabled\"\n    hidden=\"true\"\n  ></option>\n\n  </select>\n</span>\n",
                styles: ["select{font-size:12px;height:26px;cursor:pointer;border-radius:2px;border-width:1px;border-style:solid}#customScaleOption{display:none}"]
            },] }
];
PdfZoomDropdownComponent.ctorParameters = () => [
    { type: ElementRef }
];
PdfZoomDropdownComponent.propDecorators = {
    zoomLevels: [{ type: Input }],
    sizeSelector: [{ type: ViewChild, args: ['sizeSelector',] }]
};
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