mapcomplete/UI/SpecialVisualizations.ts

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import {UIElement} from "./UIElement";
import OpeningHoursVisualization from "./OhVisualization";
import {UIEventSource} from "../Logic/UIEventSource";
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import {VariableUiElement} from "./Base/VariableUIElement";
import LiveQueryHandler from "../Logic/Web/LiveQueryHandler";
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import {ImageCarousel} from "./Image/ImageCarousel";
import Combine from "./Base/Combine";
import {FixedUiElement} from "./Base/FixedUiElement";
import Locale from "../UI/i18n/Locale";
import {ImageUploadFlow} from "./Image/ImageUploadFlow";
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import {Translation} from "./i18n/Translation";
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export class SubstitutedTranslation extends UIElement {
private readonly tags: UIEventSource<any>;
private readonly translation: Translation;
private content: UIElement[];
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constructor(
translation: Translation,
tags: UIEventSource<any>) {
super(tags);
this.translation = translation;
this.tags = tags;
const self = this;
Locale.language.addCallbackAndRun(() => {
self.content = self.CreateContent();
self.Update();
});
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}
InnerRender(): string {
return new Combine(this.content).Render();
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}
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private CreateContent(): UIElement[] {
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let txt = this.translation?.txt;
if (txt === undefined) {
return []
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}
const tags = this.tags.data;
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txt = SubstitutedTranslation.SubstituteKeys(txt, tags);
return this.EvaluateSpecialComponents(txt);
}
public static SubstituteKeys(txt: string, tags: any) {
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for (const key in tags) {
// Poor mans replace all
txt = txt.split("{" + key + "}").join(tags[key]);
}
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return txt;
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}
private EvaluateSpecialComponents(template: string): UIElement[] {
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for (const knownSpecial of SpecialVisualizations.specialVisualizations) {
// NOte: the '.*?' in the regex reads as 'any character, but in a non-greedy way'
const matched = template.match(`(.*){${knownSpecial.funcName}\\((.*?)\\)}(.*)`);
if (matched != null) {
// We found a special component that should be brought to live
const partBefore = this.EvaluateSpecialComponents(matched[1]);
const argument = matched[2].trim();
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const partAfter = this.EvaluateSpecialComponents(matched[3]);
try {
const args = knownSpecial.args.map(arg => arg.defaultValue ?? "");
if (argument.length > 0) {
const realArgs = argument.split(",").map(str => str.trim());
for (let i = 0; i < realArgs.length; i++) {
if (args.length <= i) {
args.push(realArgs[i]);
} else {
args[i] = realArgs[i];
}
}
}
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const element = knownSpecial.constr(this.tags, args);
return [...partBefore, element, ...partAfter]
} catch (e) {
console.error(e);
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return [...partBefore,new FixedUiElement(`Failed loading ${knownSpecial.funcName}(${matched[2]}): ${e}`) , ...partAfter]
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}
}
}
// IF we end up here, no changes have to be made
return [new FixedUiElement(template)];
}
}
export default class SpecialVisualizations {
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public static specialVisualizations: {
funcName: string,
constr: ((tagSource: UIEventSource<any>, argument: string[]) => UIElement),
docs: string,
example?: string,
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args: { name: string, defaultValue?: string, doc: string }[]
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}[] =
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[{
funcName: "all_tags",
docs: "Prints all key-value pairs of the object - used for debugging",
args: [],
constr: ((tags: UIEventSource<any>) => {
return new VariableUiElement(tags.map(tags => {
const parts = [];
for (const key in tags) {
parts.push(key + "=" + tags[key]);
}
return parts.join("<br/>")
})).SetStyle("border: 1px solid black; border-radius: 1em;padding:1em;display:block;")
})
},
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{
funcName: "image_carousel",
docs: "Creates an image carousel for the given sources. An attempt will be made to guess what source is used. Supported: Wikidata identifiers, Wikipedia pages, Wikimedia categories, IMGUR (with attribution, direct links)",
args: [{
name: "image key/prefix",
defaultValue: "image",
doc: "The keys given to the images, e.g. if <span class='literal-code'>image</span> is given, the first picture URL will be added as <span class='literal-code'>image</span>, the second as <span class='literal-code'>image:0</span>, the third as <span class='literal-code'>image:1</span>, etc... "
},
{
name: "smart search",
defaultValue: "true",
doc: "Also include images given via 'Wikidata', 'wikimedia_commons' and 'mapillary"
}],
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constr: (tags, args) => {
return new ImageCarousel(tags, args[0], args[1].toLowerCase() === "true");
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}
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},
{
funcName: "image_upload",
docs: "Creates a button where a user can upload an image to IMGUR",
args: [{
name: "image-key",
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doc: "Image tag to add the URL to (or image-tag:0, image-tag:1 when multiple images are added)",
defaultValue: "image"
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}],
constr: (tags, args) => {
return new ImageUploadFlow(tags, args[0])
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}
},
{
funcName: "opening_hours_table",
docs: "Creates an opening-hours table. Usage: {opening_hours_table(opening_hours)} to create a table of the tag 'opening_hours'.",
args: [{
name: "key",
defaultValue: "opening_hours",
doc: "The tagkey from which the table is constructed."
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}],
constr: (tagSource: UIEventSource<any>, args) => {
let keyname = args[0];
if (keyname === undefined || keyname === "") {
keyname = keyname ?? "opening_hours"
}
return new OpeningHoursVisualization(tagSource, keyname)
}
},
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{
funcName: "live",
docs: "Downloads a JSON from the given URL, e.g. '{live(example.org/data.json, shorthand:x.y.z, other:a.b.c, shorthand)}' will download the given file, will create an object {shorthand: json[x][y][z], other: json[a][b][c] out of it and will return 'other' or 'json[a][b][c]. This is made to use in combination with tags, e.g. {live({url}, {url:format}, needed_value)}",
example: "{live({url},{url:format},hour)} {live(https://data.mobility.brussels/bike/api/counts/?request=live&featureID=CB2105,hour:data.hour_cnt;day:data.day_cnt;year:data.year_cnt,hour)}",
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args: [{
name: "Url", doc: "The URL to load"
}, {
name: "Shorthands",
doc: "A list of shorthands, of the format 'shorthandname:path.path.path'. Seperated by ;"
}, {
name: "path", doc: "The path (or shorthand) that should be returned"
}],
constr: (tagSource: UIEventSource<any>, args) => {
const url = args[0];
const shorthands = args[1];
const neededValue = args[2];
const source = LiveQueryHandler.FetchLiveData(url, shorthands.split(";"));
return new VariableUiElement(source.map(data => data[neededValue] ?? "Loading..."));
}
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},
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]
static HelpMessage: UIElement = SpecialVisualizations.GenHelpMessage();
private static GenHelpMessage() {
const helpTexts =
SpecialVisualizations.specialVisualizations.map(viz => new Combine(
[
`<h3>${viz.funcName}</h3>`,
viz.docs,
"<ol>",
...viz.args.map(arg => new Combine([
"<li>",
"<b>" + arg.name + "</b>: ",
arg.doc,
arg.defaultValue === undefined ? "" : (" Default: <span class='literal-code'>" + arg.defaultValue + "</span>"),
"</li>"
])),
"</ol>",
"<b>Example usage: </b>",
new FixedUiElement(
viz.example ?? "{" + viz.funcName + "(" + viz.args.map(arg => arg.defaultValue).join(",") + ")}"
).SetClass("literal-code"),
]
));
return new Combine([
"In a tagrendering, some special values are substituted by an advanced UI-element. This allows advanced features and visualizations to be reused by custom themes or even to query third-party API's.",
...helpTexts
]
);
}
}