Fix page title not updating

This commit is contained in:
Arne Keller 2021-03-07 21:31:50 +01:00
parent c5d146a137
commit ac932a6e0c
5 changed files with 74 additions and 69 deletions

View File

@ -2,7 +2,6 @@ package edu.kit.typicalc.presenter;
import java.util.Map;
import com.vaadin.flow.component.UI;
import edu.kit.typicalc.model.Model;
import edu.kit.typicalc.model.TypeInfererInterface;
import edu.kit.typicalc.model.parser.ParseError;
@ -31,11 +30,6 @@ public class Presenter implements MainViewListener {
@Override
public void typeInferLambdaString(String lambdaTerm, Map<String, String> typeAssumptions) {
if (lambdaTerm.isBlank()) {
UI.getCurrent().getPage().setTitle(UI.getCurrent().getTranslation("root.typicalc"));
} else {
UI.getCurrent().getPage().setTitle(UI.getCurrent().getTranslation("root.typicalc") + " - " + lambdaTerm);
}
Result<TypeInfererInterface, ParseError> result = model.getTypeInferer(lambdaTerm, typeAssumptions);
if (result.isError()) {
view.displayError(result.unwrapError());

View File

@ -36,7 +36,6 @@ public class StartPageView extends VerticalLayout implements ControlPanelView, L
private static final String CONTROL_PANEL_ID = "controlPanel";
private static final String START_PAGE_ID = "startPage";
private static final String SLIDE_SHOW_ID = "slideShow";
private static final String FOOTER_ID = "startpage-footer";
private static final String DOT = ".";

View File

@ -10,11 +10,18 @@ import com.vaadin.flow.component.html.Footer;
import com.vaadin.flow.component.orderedlayout.VerticalLayout;
import com.vaadin.flow.i18n.LocaleChangeEvent;
import com.vaadin.flow.i18n.LocaleChangeObserver;
import com.vaadin.flow.router.BeforeEnterEvent;
import com.vaadin.flow.router.BeforeEnterObserver;
import com.vaadin.flow.router.HasDynamicTitle;
import com.vaadin.flow.router.Route;
import edu.kit.typicalc.model.TypeInfererInterface;
import edu.kit.typicalc.view.content.ControlPanel;
import edu.kit.typicalc.view.content.ControlPanelView;
import edu.kit.typicalc.view.content.typeinferencecontent.latexcreator.LatexCreator;
import edu.kit.typicalc.view.main.MainViewImpl;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.util.List;
import java.util.Locale;
@ -27,8 +34,10 @@ import java.util.Locale;
*/
@CssImport("./styles/view/type-inference.css")
@JavaScript("./src/key-shortcuts.js")
@Route(value = TypeInferenceView.ROUTE + "/:term", layout = MainViewImpl.class)
public class TypeInferenceView extends VerticalLayout
implements ControlPanelView, ComponentEventListener<AttachEvent>, LocaleChangeObserver {
implements ControlPanelView, ComponentEventListener<AttachEvent>, LocaleChangeObserver, HasDynamicTitle,
BeforeEnterObserver {
/**
* Route of this view.
*/
@ -47,6 +56,15 @@ public class TypeInferenceView extends VerticalLayout
private final transient TypeInfererInterface typeInferer;
private final Div content;
private final ControlPanel controlPanel;
private String term = "?";
// used by Spring
public TypeInferenceView() {
this.typeInferer = null;
this.content = null;
this.controlPanel = null;
this.treeNumbers = null;
}
/**
* Initializes the component. When initialization is complete, the first step of the type
@ -138,6 +156,7 @@ public class TypeInferenceView extends VerticalLayout
@Override
public void localeChange(LocaleChangeEvent localeChangeEvent) {
if (typeInferer != null) {
lc = new LatexCreator(typeInferer,
error -> getTranslation("root." + error.toString().toLowerCase(Locale.ENGLISH)));
unification = new MathjaxUnification(lc.getUnification());
@ -145,4 +164,23 @@ public class TypeInferenceView extends VerticalLayout
content.add(unification, tree);
refreshElements();
}
}
@Override
public void beforeEnter(BeforeEnterEvent event) {
if (event.getLocation().getPath().matches(ROUTE + "/.*")) {
term = URLDecoder.decode(
event.getRouteParameters().get("term")
.orElseThrow(IllegalStateException::new),
StandardCharsets.UTF_8);
}
}
@Override
public String getPageTitle() {
if (typeInferer != null) {
return typeInferer.getFirstInferenceStep().getConclusion().getLambdaTerm().toString();
}
return UI.getCurrent().getTranslation("root.typicalc") + " - " + term;
}
}

View File

@ -16,11 +16,12 @@ import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.tuple.Pair;
import javax.servlet.http.HttpServletResponse;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.TreeMap;
import java.util.stream.Collectors;
/**
@ -34,9 +35,8 @@ import java.util.stream.Collectors;
@CssImport(value = "./styles/view/main/app-layout.css", themeFor = "vaadin-app-layout")
@JavaScript("./src/svg-pan-zoom.min.js")
@JavaScript("./src/tex-svg-full.js")
@Route(TypeInferenceView.ROUTE + "/:term")
public class MainViewImpl extends AppLayout
implements MainView, BeforeEnterObserver, HasErrorParameter<NotFoundException> {
implements MainView, HasErrorParameter<NotFoundException>, AfterNavigationObserver {
private static final long serialVersionUID = -2411433187835906976L;
/**
@ -45,7 +45,6 @@ public class MainViewImpl extends AppLayout
public static final String PAGE_TITLE = "Typicalc";
private final UpperBar upperBar;
private transient Optional<TypeInferenceView> tiv = Optional.empty();
/**
* Creates a new MainViewImpl.
@ -53,15 +52,14 @@ public class MainViewImpl extends AppLayout
public MainViewImpl() {
setDrawerOpened(false);
MainViewListener presenter = new Presenter(new ModelImpl(), this);
upperBar = new UpperBar(presenter, this::setTermInURL);
upperBar = new UpperBar(presenter, this::processInput);
addToNavbar(upperBar);
addToDrawer(new DrawerContent());
}
@Override
public void setTypeInferenceView(TypeInfererInterface typeInferer) {
tiv = Optional.of(new TypeInferenceView(typeInferer));
setContent(tiv.get());
setContent(new TypeInferenceView(typeInferer));
}
@Override
@ -70,56 +68,41 @@ public class MainViewImpl extends AppLayout
}
@Override
public void beforeEnter(BeforeEnterEvent event) {
tiv = Optional.empty();
if (event.getLocation().getPath().matches(TypeInferenceView.ROUTE + "/.*")) {
Location url = event.getLocation();
public void afterNavigation(AfterNavigationEvent event) {
this.handleLocation(event.getLocation());
}
private void handleLocation(Location url) {
if (url.getPath().matches(TypeInferenceView.ROUTE + "/.*")) {
List<String> segments = url.getSegments();
String term = segments.get(segments.size() - 1);
Map<String, String> types = url.getQueryParameters().getParameters().entrySet().stream().map(entry ->
Pair.of(entry.getKey(), entry.getValue().get(0))
).collect(Collectors.toMap(Pair::getLeft, Pair::getRight));
upperBar.inferTerm(decodeURL(term), types);
} else if (event.getLocation().getPath().equals(TypeInferenceView.ROUTE)) {
} else if (url.getPath().equals(TypeInferenceView.ROUTE)) {
setContent(new StartPageView());
upperBar.inferTerm(StringUtils.EMPTY, Collections.emptyMap());
} else if (event.getLocation().getPath().equals(StringUtils.EMPTY)) {
} else if (url.getPath().equals(StringUtils.EMPTY)) {
setContent(new StartPageView());
}
}
@Override
protected void afterNavigation() {
// this method ensures that the content is visible after navigation
tiv.ifPresent(this::setContent);
}
private void setTermInURL(Pair<String, Map<String, String>> lambdaTermAndAssumptions) {
private void processInput(Pair<String, Map<String, String>> lambdaTermAndAssumptions) {
String lambdaTerm = lambdaTermAndAssumptions.getLeft();
if ("".equals(lambdaTerm)) {
UI.getCurrent().getPage().getHistory().pushState(null, "./");
setContent(new StartPageView());
if (lambdaTerm.isBlank()) {
UI.getCurrent().navigate("./");
return;
}
StringBuilder types = new StringBuilder();
for (Map.Entry<String, String> type : lambdaTermAndAssumptions.getRight().entrySet()) {
if (types.length() > 0) {
types.append('&');
}
types.append(type.getKey());
types.append('=');
types.append(type.getValue());
}
String typeAssumptions = "";
if (types.length() > 0) {
typeAssumptions = "?" + types.toString();
}
UI.getCurrent().getPage().getHistory().pushState(null,
new Location(TypeInferenceView.ROUTE + "/" + lambdaTerm + typeAssumptions));
QueryParameters qp = new QueryParameters(lambdaTermAndAssumptions.getRight().entrySet().stream().map(entry ->
Pair.of(entry.getKey(), List.of(entry.getValue()))
).collect(Collectors.toMap(Pair::getLeft, Pair::getRight,
(existing, replacement) -> existing, TreeMap::new)));
UI.getCurrent().navigate(TypeInferenceView.ROUTE + "/" + lambdaTerm, qp);
}
private String decodeURL(String encodedUrl) {
return java.net.URLDecoder.decode(encodedUrl, StandardCharsets.UTF_8);
return URLDecoder.decode(encodedUrl, StandardCharsets.UTF_8);
}
@Override

View File

@ -3,7 +3,6 @@ package edu.kit.typicalc.view.main;
import com.vaadin.flow.component.applayout.DrawerToggle;
import com.vaadin.flow.component.button.Button;
import com.vaadin.flow.component.dependency.CssImport;
import com.vaadin.flow.component.dialog.Dialog;
import com.vaadin.flow.component.html.Anchor;
import com.vaadin.flow.component.html.H1;
import com.vaadin.flow.component.icon.Icon;
@ -41,18 +40,18 @@ public class UpperBar extends HorizontalLayout implements LocaleChangeObserver {
private final Button helpButton;
private final transient MainViewListener presenter;
private final transient Consumer<Pair<String, Map<String, String>>> setTermInURL;
private final transient Consumer<Pair<String, Map<String, String>>> inputConsumer;
/**
* Initializes a new UpperBar with the provided mainViewListener.
*
* @param presenter the listener used to communicate with the model
* @param setTermInURL function to set the term into the URL
* @param inputConsumer function to handle user input
*/
protected UpperBar(MainViewListener presenter, Consumer<Pair<String, Map<String, String>>> setTermInURL) {
protected UpperBar(MainViewListener presenter, Consumer<Pair<String, Map<String, String>>> inputConsumer) {
this.presenter = presenter;
this.setTermInURL = setTermInURL;
this.inputConsumer = inputConsumer;
toggle = new DrawerToggle();
H1 viewTitle = new H1(new Anchor("/", getTranslation("root.typicalc")));
@ -60,7 +59,7 @@ public class UpperBar extends HorizontalLayout implements LocaleChangeObserver {
this.inputBar = new InputBar(this::typeInfer);
inputBar.setId(INPUT_BAR_ID);
helpButton = new Button(new Icon(VaadinIcon.QUESTION_CIRCLE));
helpButton.addClickListener(event -> onHelpIconClick());
helpButton.addClickListener(event -> new HelpDialog().open());
helpButton.setId(HELP_ICON_ID);
add(toggle, viewTitle, inputBar, helpButton);
@ -76,10 +75,7 @@ public class UpperBar extends HorizontalLayout implements LocaleChangeObserver {
* @param termAndAssumptions the lambda term to be type-inferred and the type assumptions to use
*/
protected void typeInfer(Pair<String, Map<String, String>> termAndAssumptions) {
setTermInURL.accept(termAndAssumptions);
if (!"".equals(termAndAssumptions.getLeft())) {
startInfer(termAndAssumptions.getLeft(), termAndAssumptions.getRight());
}
inputConsumer.accept(termAndAssumptions);
}
private void startInfer(String term, Map<String, String> typeAssumptions) {
@ -98,11 +94,6 @@ public class UpperBar extends HorizontalLayout implements LocaleChangeObserver {
startInfer(term, typeAssumptions);
}
private void onHelpIconClick() {
Dialog helpDialog = new HelpDialog();
helpDialog.open();
}
@Override
public void localeChange(LocaleChangeEvent event) {
toggle.getElement().setAttribute("title", getTranslation("root.drawerToggleTooltip"));