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17 | import { inject, injectable } from 'inversify';
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18 | import { MessageService, UNTITLED_SCHEME } from '../common';
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19 | import { Navigatable, NavigatableWidget } from './navigatable-types';
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20 | import { Saveable, SaveableSource, SaveOptions } from './saveable';
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21 | import { Widget } from './widgets';
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22 |
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23 | @injectable()
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24 | export class SaveResourceService {
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25 | @inject(MessageService) protected readonly messageService: MessageService;
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26 |
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27 | |
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29 |
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30 | canSave(widget?: Widget): widget is Widget & (Saveable | SaveableSource) {
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31 | return Saveable.isDirty(widget) && (this.canSaveNotSaveAs(widget) || this.canSaveAs(widget));
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32 | }
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33 |
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34 | canSaveNotSaveAs(widget?: Widget): widget is Widget & (Saveable | SaveableSource) {
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35 |
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36 | return Boolean(widget && NavigatableWidget.getUri(widget)?.scheme !== UNTITLED_SCHEME);
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37 | }
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38 |
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39 | |
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43 |
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44 | async save(widget: Widget | undefined, options?: SaveOptions): Promise<void> {
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45 | if (this.canSaveNotSaveAs(widget)) {
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46 | await Saveable.save(widget, options);
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47 | } else if (this.canSaveAs(widget)) {
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48 | await this.saveAs(widget, options);
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49 | }
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50 | }
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51 |
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52 | canSaveAs(saveable?: Widget): saveable is Widget & SaveableSource & Navigatable {
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53 | return false;
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54 | }
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55 |
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56 | saveAs(sourceWidget: Widget & SaveableSource & Navigatable, options?: SaveOptions): Promise<void> {
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57 | return Promise.reject('Unsupported: The base SaveResourceService does not support saveAs action.');
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58 | }
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59 | }
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