516 lines
17 KiB
TypeScript
516 lines
17 KiB
TypeScript
import {UIElement} from "../UI/UIElement";
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import {UIEventSource} from "../UI/UIEventSource";
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import {And, Tag, TagsFilter, TagUtils} from "../Logic/TagsFilter";
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import {FixedUiElement} from "../UI/Base/FixedUiElement";
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import {SaveButton} from "../UI/SaveButton";
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import {Changes} from "../Logic/Changes";
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import {VariableUiElement} from "../UI/Base/VariableUIElement";
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import {TagDependantUIElement, TagDependantUIElementConstructor} from "./UIElementConstructor";
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import {OnlyShowIfConstructor} from "./OnlyShowIf";
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import {UserDetails} from "../Logic/OsmConnection";
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import {TextField} from "../UI/Input/TextField";
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import {InputElement} from "../UI/Input/InputElement";
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import {InputElementWrapper} from "../UI/Input/InputElementWrapper";
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import {FixedInputElement} from "../UI/Input/FixedInputElement";
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import {RadioButton} from "../UI/Input/RadioButton";
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import Translations from "../UI/i18n/Translations";
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import Locale from "../UI/i18n/Locale";
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export class TagRenderingOptions implements TagDependantUIElementConstructor {
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/**
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* Notes: by not giving a 'question', one disables the question form alltogether
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*/
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public options: {
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priority?: number;
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question?: string | UIElement;
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freeform?: {
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key: string;
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tagsPreprocessor?: (tags: any) => any;
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template: string | UIElement;
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renderTemplate: string | UIElement;
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placeholder?: string | UIElement;
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extraTags?: TagsFilter
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};
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mappings?: { k: TagsFilter; txt: string | UIElement; priority?: number, substitute?: boolean }[]
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};
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constructor(options: {
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/**
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* This is the string that is shown in the popup if this tag is missing.
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*
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* If 'question' is undefined, then the question is never asked at all
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* If the question is "" (empty string) then the question is
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*/
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question?: UIElement | string,
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/**
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* What is the priority of the question.
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* By default, in the popup of a feature, only one question is shown at the same time. If multiple questions are unanswered, the question with the highest priority is asked first
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*/
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priority?: number,
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/**
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* Mappings convert a well-known tag combination into a user friendly text.
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* It converts e.g. 'access=yes' into 'this area can be accessed'
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*
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* If there are multiple tags that should be matched, And can be used. All tags in AND will be added when the question is picked (and the corresponding text will only be shown if all tags are present).
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* If AND is used, it is best practice to make sure every used tag is in every option (with empty string) to erase extra tags.
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*
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* If a 'k' is null, then this one is shown by default. It can be used to force a default value, e.g. to show that the name of a POI is not (yet) known .
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* A mapping where 'k' is null will not be shown as option in the radio buttons.
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*
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*
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*/
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mappings?: { k: TagsFilter, txt: UIElement | string, priority?: number, substitute?: boolean }[],
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/**
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* If one wants to render a freeform tag (thus no predefined key/values) or if there are a few well-known tags with a freeform object,
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* use this.
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* In the question, it'll offer a textfield
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*/
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freeform?: {
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key: string,
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template: string | UIElement,
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renderTemplate: string | UIElement
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placeholder?: string | UIElement,
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extraTags?: TagsFilter,
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},
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/**
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* In some very rare cases, tags have to be rewritten before displaying
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* This function can be used for that.
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* This function is ran on a _copy_ of the original properties
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*/
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tagsPreprocessor?: ((tags: any) => void)
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}) {
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this.options = options;
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}
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OnlyShowIf(tagsFilter: TagsFilter): TagDependantUIElementConstructor {
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return new OnlyShowIfConstructor(tagsFilter, this);
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}
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IsQuestioning(tags: any): boolean {
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const tagsKV = TagUtils.proprtiesToKV(tags);
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for (const oneOnOneElement of this.options.mappings ?? []) {
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if (oneOnOneElement.k === null || oneOnOneElement.k.matches(tagsKV)) {
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return false;
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}
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}
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if (this.options.freeform !== undefined && tags[this.options.freeform.key] !== undefined) {
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return false;
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}
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if (this.options.question === undefined) {
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return false;
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}
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return true;
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}
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construct(dependencies: { tags: UIEventSource<any>, changes: Changes }): TagDependantUIElement {
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return new TagRendering(dependencies.tags, dependencies.changes, this.options);
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}
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IsKnown(properties: any): boolean {
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return !this.IsQuestioning(properties);
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}
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Priority(): number {
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return this.options.priority ?? 0;
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}
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}
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class TagRendering extends UIElement implements TagDependantUIElement {
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private _userDetails: UIEventSource<UserDetails>;
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private _priority: number;
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private _question: UIElement;
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private _mapping: { k: TagsFilter, txt: string | UIElement, priority?: number }[];
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private _tagsPreprocessor?: ((tags: any) => any);
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private _freeform: {
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key: string,
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template: string | UIElement,
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renderTemplate: string | UIElement,
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placeholder?: string | UIElement,
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extraTags?: TagsFilter
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};
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private readonly _questionElement: InputElement<TagsFilter>;
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private readonly _saveButton: UIElement;
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private readonly _skipButton: UIElement;
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private readonly _editButton: UIElement;
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private readonly _questionSkipped: UIEventSource<boolean> = new UIEventSource<boolean>(false);
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private readonly _editMode: UIEventSource<boolean> = new UIEventSource<boolean>(false);
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constructor(tags: UIEventSource<any>, changes: Changes, options: {
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priority?: number
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question?: string | UIElement,
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freeform?: {
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key: string,
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template: string | UIElement,
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renderTemplate: string | UIElement,
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placeholder?: string | UIElement,
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extraTags?: TagsFilter,
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},
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tagsPreprocessor?: ((tags: any) => any),
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mappings?: { k: TagsFilter, txt: string | UIElement, priority?: number, substitute?: boolean }[]
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}) {
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super(tags);
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this.ListenTo(Locale.language);
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const self = this;
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this.ListenTo(this._questionSkipped);
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this.ListenTo(this._editMode);
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this._userDetails = changes.login.userDetails;
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this.ListenTo(this._userDetails);
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if (options.question !== undefined) {
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this._question = Translations.W(options.question);
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}
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this._priority = options.priority ?? 0;
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this._tagsPreprocessor = function (properties) {
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if (options.tagsPreprocessor === undefined) {
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return properties;
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}
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const newTags = {};
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for (const k in properties) {
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newTags[k] = properties[k];
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}
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options.tagsPreprocessor(newTags);
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return newTags;
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};
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this._mapping = [];
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this._freeform = options.freeform;
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for (const choice of options.mappings ?? []) {
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let choiceSubbed = {
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k: choice.k,
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txt: choice.txt,
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priority: choice.priority
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};
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if (choice.substitute) {
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choiceSubbed = {
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k: choice.k.substituteValues(
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options.tagsPreprocessor(this._source.data)),
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txt: choice.txt,
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priority: choice.priority
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}
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}
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this._mapping.push({
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k: choiceSubbed.k,
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txt: choiceSubbed.txt
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});
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}
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// Prepare the actual input element -> pick an appropriate implementation
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this._questionElement = this.InputElementFor(options);
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const save = () => {
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const selection = self._questionElement.GetValue().data;
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if (selection) {
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changes.addTag(tags.data.id, selection);
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}
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self._editMode.setData(false);
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}
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const cancel = () => {
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self._questionSkipped.setData(true);
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self._editMode.setData(false);
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self._source.ping(); // Send a ping upstream to render the next question
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}
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// Setup the save button and it's action
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this._saveButton = new SaveButton(this._questionElement.GetValue())
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.onClick(save);
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this._editButton = new FixedUiElement("");
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if (this._question !== undefined) {
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this._editButton = new FixedUiElement("<img class='editbutton' src='./assets/pencil.svg' alt='edit'>")
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.onClick(() => {
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self._editMode.setData(true);
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self._questionElement.GetValue().setData(self.CurrentValue());
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});
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}
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const cancelContents = this._editMode.map((isEditing) => {
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if (isEditing) {
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return "<span class='skip-button'>"+Translations.t.general.cancel.R()+"</span>";
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} else {
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return "<span class='skip-button'>"+Translations.t.general.skip.R()+"</span>";
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}
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}, [Locale.language]);
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// And at last, set up the skip button
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this._skipButton = new VariableUiElement(cancelContents).onClick(cancel) ;
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}
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private InputElementFor(options: {
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freeform?: {
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key: string,
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template: string | UIElement,
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renderTemplate: string | UIElement,
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placeholder?: string | UIElement,
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extraTags?: TagsFilter,
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},
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mappings?: { k: TagsFilter, txt: string | UIElement, priority?: number, substitute?: boolean }[]
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}):
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InputElement<TagsFilter> {
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const elements = [];
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if (options.mappings !== undefined) {
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const previousTexts= [];
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for (const mapping of options.mappings) {
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if(mapping.k === null){
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continue;
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}
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if(previousTexts.indexOf(mapping.txt) >= 0){
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continue;
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}
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previousTexts.push(mapping.txt);
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elements.push(this.InputElementForMapping(mapping));
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}
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}
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if (options.freeform !== undefined) {
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elements.push(this.InputForFreeForm(options.freeform));
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}
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if (elements.length == 0) {
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console.warn("WARNING: no tagrendering with following options:", options);
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return new FixedInputElement("This should not happen: no tag renderings defined", undefined);
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}
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if (elements.length == 1) {
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return elements[0];
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}
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return new RadioButton(elements, false);
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}
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private InputElementForMapping(mapping: { k: TagsFilter, txt: string | UIElement }) {
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return new FixedInputElement(mapping.txt, mapping.k);
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}
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private InputForFreeForm(freeform): InputElement<TagsFilter> {
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if (freeform === undefined) {
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return undefined;
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}
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const pickString =
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(string) => {
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if (string === "" || string === undefined) {
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return undefined;
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}
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const tag = new Tag(freeform.key, string);
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if (freeform.extraTags === undefined) {
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return tag;
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}
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return new And([
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tag,
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freeform.extraTags
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]
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);
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};
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const toString =
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(tag) => {
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if (tag instanceof And) {
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return toString(tag.and[0])
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} else if (tag instanceof Tag) {
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return tag.value
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}
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return undefined;
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}
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let inputElement: InputElement<TagsFilter>;
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const textField = new TextField({
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placeholder: this._freeform.placeholder,
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fromString: pickString,
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toString: toString
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});
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const prepost = Translations.W(freeform.template).InnerRender().split("$$$");
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return new InputElementWrapper(prepost[0], textField, prepost[1]);
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}
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IsKnown(): boolean {
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const tags = TagUtils.proprtiesToKV(this._source.data);
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for (const oneOnOneElement of this._mapping) {
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if (oneOnOneElement.k === null || oneOnOneElement.k.matches(tags)) {
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return true;
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}
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}
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return this._freeform !== undefined && this._source.data[this._freeform.key] !== undefined;
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}
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private CurrentValue(): TagsFilter {
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const tags = TagUtils.proprtiesToKV(this._source.data);
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for (const oneOnOneElement of this._mapping) {
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if (oneOnOneElement.k !== null && oneOnOneElement.k.matches(tags)) {
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return oneOnOneElement.k;
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}
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}
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if (this._freeform === undefined) {
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return undefined;
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}
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return new Tag(this._freeform.key, this._source.data[this._freeform.key]);
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}
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IsQuestioning(): boolean {
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if (this.IsKnown()) {
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return false;
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}
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if (this._question === undefined) {
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// We don't ask this question in the first place
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return false;
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}
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if (this._questionSkipped.data) {
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// We don't ask for this question anymore, skipped by user
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return false;
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}
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return true;
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}
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private RenderAnwser(): UIElement {
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const tags = TagUtils.proprtiesToKV(this._source.data);
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let freeform: UIElement = new FixedUiElement("");
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let freeformScore = -10;
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if (this._freeform !== undefined && this._source.data[this._freeform.key] !== undefined) {
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freeform = this.ApplyTemplate(this._freeform.renderTemplate);
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freeformScore = 0;
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}
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let highestScore = -100;
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let highestTemplate = undefined;
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for (const oneOnOneElement of this._mapping) {
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if (oneOnOneElement.k == null ||
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oneOnOneElement.k.matches(tags)) {
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// We have found a matching key -> we use the template, but only if it scores better
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let score = oneOnOneElement.priority ??
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(oneOnOneElement.k === null ? -1 : 0);
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if (score > highestScore) {
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highestScore = score;
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highestTemplate = oneOnOneElement.txt
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}
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}
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}
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if (freeformScore > highestScore) {
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return freeform;
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}
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if (highestTemplate !== undefined) {
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// we render the found template
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return this.ApplyTemplate(highestTemplate);
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}
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}
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InnerRender(): string {
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if (this.IsQuestioning() || this._editMode.data) {
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// Not yet known or questioning, we have to ask a question
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const question = this._question.Render();
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return "<div class='question'>" +
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"<span class='question-text'>" + question + "</span>" +
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(this._question.IsEmpty() ? "" : "<br/>") +
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"<div>" + this._questionElement.Render() + "</div>" +
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this._skipButton.Render() +
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this._saveButton.Render() +
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"</div>"
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}
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if (this.IsKnown()) {
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const answer = this.RenderAnwser()
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if (answer.IsEmpty()) {
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return "";
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}
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const html = answer.Render();
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let editButton = "";
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if (this._userDetails.data.loggedIn && this._question !== undefined) {
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editButton = this._editButton.Render();
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}
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return "<span class='answer'>" +
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"<span class='answer-text'>" + html + "</span>" +
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editButton +
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"</span>";
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}
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return "";
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}
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Priority(): number {
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return this._priority;
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}
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private ApplyTemplate(template: string | UIElement): UIElement {
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if(template === undefined || template === null){
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throw "Trying to apply a template, but the template is null/undefined"
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}
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const tags = this._tagsPreprocessor(this._source.data);
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if (template instanceof UIElement) {
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template = template.Render();
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}
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return new FixedUiElement(TagUtils.ApplyTemplate(template, tags));
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}
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InnerUpdate(htmlElement: HTMLElement) {
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super.InnerUpdate(htmlElement);
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this._questionElement.Update(); // Another manual update for them
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}
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} |