ngx-smart-modal
Version:
Smart modal handler to manage modals and data everywhere in Angular apps.
110 lines • 12.6 kB
JavaScript
import { Injectable } from '@angular/core';
import * as i0 from "@angular/core";
export class NgxSmartModalStackService {
constructor() {
this._modalStack = [];
}
/**
* Add a new modal instance. This step is essential and allows to retrieve any modal at any time.
* It stores an object that contains the given modal identifier and the modal itself directly in the `modalStack`.
*
* @param modalInstance The object that contains the given modal identifier and the modal itself.
* @param force Optional parameter that forces the overriding of modal instance if it already exists.
* @returns nothing special.
*/
addModal(modalInstance, force) {
if (force) {
const i = this._modalStack.findIndex((o) => o.id === modalInstance.id);
if (i > -1) {
this._modalStack[i].modal = modalInstance.modal;
}
else {
this._modalStack.push(modalInstance);
}
return;
}
this._modalStack.push(modalInstance);
}
/**
* Retrieve a modal instance by its identifier.
*
* @param id The modal identifier used at creation time.
*/
getModal(id) {
const i = this._modalStack.find((o) => o.id === id);
if (i !== undefined) {
return i.modal;
}
else {
throw new Error(`Cannot find modal with identifier ${id}`);
}
}
/**
* Retrieve all the created modals.
*
* @returns an array that contains all modal instances.
*/
getModalStack() {
return this._modalStack;
}
/**
* Retrieve all the opened modals. It looks for all modal instances with their `visible` property set to `true`.
*
* @returns an array that contains all the opened modals.
*/
getOpenedModals() {
return this._modalStack.filter((o) => o.modal.visible);
}
/**
* Retrieve the opened modal with highest z-index.
*
* @returns the opened modal with highest z-index.
*/
getTopOpenedModal() {
if (!this.getOpenedModals().length) {
throw new Error('No modal is opened');
}
return this.getOpenedModals()
.map((o) => o.modal)
.reduce((highest, item) => item.layerPosition > highest.layerPosition ? item : highest, this.getOpenedModals()[0].modal);
}
/**
* Get the higher `z-index` value between all the modal instances. It iterates over the `ModalStack` array and
* calculates a higher value (it takes the highest index value between all the modal instances and adds 1).
* Use it to make a modal appear foreground.
*
* @returns a higher index from all the existing modal instances.
*/
getHigherIndex() {
return Math.max(...this._modalStack.map((o) => o.modal.layerPosition), 1041) + 1;
}
/**
* It gives the number of modal instances. It's helpful to know if the modal stack is empty or not.
*
* @returns the number of modal instances.
*/
getModalStackCount() {
return this._modalStack.length;
}
/**
* Remove a modal instance from the modal stack.
* Returns the removed modal instance or undefined if no modal was found
*
* @param id The modal identifier.
* @returns the removed modal instance.
*/
removeModal(id) {
const i = this._modalStack.findIndex((o) => o.id === id);
if (i < 0) {
return;
}
const modalInstance = this._modalStack.splice(i, 1)[0];
return modalInstance;
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.10", ngImport: i0, type: NgxSmartModalStackService, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }
static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.2.10", ngImport: i0, type: NgxSmartModalStackService }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.10", ngImport: i0, type: NgxSmartModalStackService, decorators: [{
type: Injectable
}], ctorParameters: function () { return []; } });
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This step is essential and allows to retrieve any modal at any time.\n   * It stores an object that contains the given modal identifier and the modal itself directly in the `modalStack`.\n   *\n   * @param modalInstance The object that contains the given modal identifier and the modal itself.\n   * @param force Optional parameter that forces the overriding of modal instance if it already exists.\n   * @returns nothing special.\n   */\n  public addModal(modalInstance: ModalInstance, force?: boolean): void {\n    if (force) {\n      const i: number = this._modalStack.findIndex((o: ModalInstance) => o.id === modalInstance.id);\n      if (i > -1) {\n        this._modalStack[i].modal = modalInstance.modal;\n      } else {\n        this._modalStack.push(modalInstance);\n      }\n      return;\n    }\n    this._modalStack.push(modalInstance);\n  }\n\n  /**\n   * Retrieve a modal instance by its identifier.\n   *\n   * @param id The modal identifier used at creation time.\n   */\n  public getModal(id: string): NgxSmartModalComponent {\n    const i = this._modalStack.find((o: ModalInstance) => o.id === id);\n\n    if (i !== undefined) {\n      return i.modal;\n    } else {\n      throw new Error(`Cannot find modal with identifier ${id}`);\n    }\n  }\n\n  /**\n   * Retrieve all the created modals.\n   *\n   * @returns an array that contains all modal instances.\n   */\n  public getModalStack(): ModalInstance[] {\n    return this._modalStack;\n  }\n\n  /**\n   * Retrieve all the opened modals. It looks for all modal instances with their `visible` property set to `true`.\n   *\n   * @returns an array that contains all the opened modals.\n   */\n  public getOpenedModals(): ModalInstance[] {\n    return this._modalStack.filter((o: ModalInstance) => o.modal.visible);\n  }\n\n  /**\n   * Retrieve the opened modal with highest z-index.\n   *\n   * @returns the opened modal with highest z-index.\n   */\n  public getTopOpenedModal(): NgxSmartModalComponent {\n    if (!this.getOpenedModals().length) {\n      throw new Error('No modal is opened');\n    }\n\n    return this.getOpenedModals()\n      .map((o: ModalInstance) => o.modal)\n      .reduce((highest, item) => item.layerPosition > highest.layerPosition ? item : highest, this.getOpenedModals()[0].modal);\n  }\n\n  /**\n   * Get the higher `z-index` value between all the modal instances. It iterates over the `ModalStack` array and\n   * calculates a higher value (it takes the highest index value between all the modal instances and adds 1).\n   * Use it to make a modal appear foreground.\n   *\n   * @returns a higher index from all the existing modal instances.\n   */\n  public getHigherIndex(): number {\n    return Math.max(...this._modalStack.map((o) => o.modal.layerPosition), 1041) + 1;\n  }\n\n  /**\n   * It gives the number of modal instances. It's helpful to know if the modal stack is empty or not.\n   *\n   * @returns the number of modal instances.\n   */\n  public getModalStackCount(): number {\n    return this._modalStack.length;\n  }\n\n  /**\n   * Remove a modal instance from the modal stack.\n   * Returns the removed modal instance or undefined if no modal was found\n   *\n   * @param id The modal identifier.\n   * @returns the removed modal instance.\n   */\n  public removeModal(id: string): undefined | ModalInstance {\n    const i: number = this._modalStack.findIndex((o: any) => o.id === id);\n    if (i < 0) {\n      return;\n    }\n\n    const modalInstance = this._modalStack.splice(i, 1)[0];\n    return modalInstance;\n  }\n}\n"]}