Example usage for org.apache.wicket.extensions.ajax.markup.html.autocomplete IAutoCompleteRenderer IAutoCompleteRenderer

List of usage examples for org.apache.wicket.extensions.ajax.markup.html.autocomplete IAutoCompleteRenderer IAutoCompleteRenderer

Introduction

In this page you can find the example usage for org.apache.wicket.extensions.ajax.markup.html.autocomplete IAutoCompleteRenderer IAutoCompleteRenderer.

Prototype

IAutoCompleteRenderer

Source Link

Usage

From source file:com.servoy.j2db.server.headlessclient.dataui.WebDataLookupField.java

License:Open Source License

private void init() {

    add(new HeaderContributor(new IHeaderContributor() {
        private static final long serialVersionUID = 1L;

        public void renderHead(IHeaderResponse response) {
            response.renderCSSReference(
                    new CompressedResourceReference(WebDataLookupField.class, "servoy_lookupfield.css")); //$NON-NLS-1$
        }/*from w w  w  .  j a  v  a 2  s .com*/
    }) {
        @Override
        public boolean isEnabled(Component component) {
            return !getScriptObject().isReadOnly() && getScriptObject().isEnabled();
        }
    });

    setOutputMarkupPlaceholderTag(true);

    AutoCompleteSettings behSettings = new AutoCompleteSettings();
    behSettings.setMaxHeightInPx(200);
    behSettings.setPreselect(true);
    behSettings.setShowCompleteListOnFocusGain(true);
    behSettings.setAdjustInputWidth(false);

    ClientProperties clp = (application.getApplicationType() != IApplication.HEADLESS_CLIENT
            ? ((WebClientInfo) Session.get().getClientInfo()).getProperties()
            : null); // in case of batch processors/jsp, we can't get browser info because UI is not given by web client components
    if (clp != null && (!clp.isBrowserInternetExplorer() || clp.getBrowserVersionMajor() >= 8)) {
        // smart positioning doesn't work on IE < 8 (probably because of unreliable clientWidth/clientHeight browser element js properties)
        behSettings.setUseSmartPositioning(true);
        behSettings.setUseHideShowCoveredIEFix(false); // don't know if the problem this setting is for can still be reproduced (I couldn't reproduce it)... this is true by default and makes fields in IE and Opera appear/dissapear if they would be covered by type-ahead popup
    } else {
        behSettings.setUseSmartPositioning(false);
        behSettings.setUseHideShowCoveredIEFix(true);
    }
    behSettings.setThrottleDelay(500);

    IAutoCompleteRenderer<Object> renderer = new IAutoCompleteRenderer<Object>() {
        protected String getTextValue(Object object) {
            String str = ""; //$NON-NLS-1$
            if (object instanceof DisplayString) {
                str = object.toString();
            } else if (object != null && !(object instanceof String)) {
                IConverter con = getConverter(object.getClass());
                if (con != null) {
                    str = con.convertToString(object, getLocale());
                } else {
                    str = object.toString();
                }
            } else if (object != null) {
                str = object.toString();
            }
            if (str == null || str.trim().equals("")) //$NON-NLS-1$
                str = "&nbsp;"; //$NON-NLS-1$
            return str;
        }

        protected void renderChoice(Object object, Response response, String criteria) {
            if (IValueList.SEPARATOR_DESIGN_VALUE.equals(object))
                return;
            String renderedObject = getTextValue(object);
            // escape the markup if it is not html or not just an empty none breaking space (null or empty string object)
            if (!renderedObject.equals("&nbsp;") && !HtmlUtils.hasHtmlTag(renderedObject)) //$NON-NLS-1$
                renderedObject = HtmlUtils.escapeMarkup(renderedObject, true, false).toString();
            response.write(renderedObject);
        }

        /*
         * (non-Javadoc)
         *
         * @see org.apache.wicket.extensions.ajax.markup.html.autocomplete.IAutoCompleteRenderer#render(java.lang.Object, org.apache.wicket.Response,
         * java.lang.String)
         */
        public void render(Object object, Response response, String criteria) {
            String textValue = getTextValue(object);
            if (textValue == null) {
                throw new IllegalStateException(
                        "A call to textValue(Object) returned an illegal value: null for object: "
                                + object.toString());
            }
            textValue = textValue.replaceAll("\\\"", "&quot;");

            response.write("<li textvalue=\"" + textValue + "\"");
            response.write(">");
            renderChoice(object, response, criteria);
            response.write("</li>");
        }

        /*
         * (non-Javadoc)
         *
         * @see org.apache.wicket.extensions.ajax.markup.html.autocomplete.IAutoCompleteRenderer#renderHeader(org.apache.wicket.Response)
         */
        @SuppressWarnings("nls")
        public void renderHeader(Response response) {
            StringBuffer listStyle = new StringBuffer();
            listStyle.append("style=\"");

            String fFamily = "Tahoma, Arial, Helvetica, sans-serif";
            String bgColor = "#ffffff";
            String fgColor = "#000000";
            String fSize = TemplateGenerator.DEFAULT_FONT_SIZE + "px";
            String padding = "2px";
            String margin = "0px";
            if (getFont() != null) {
                Font f = getFont();
                if (f != null) {
                    if (f.getFamily() != null) {
                        fFamily = f.getFamily();
                        if (fFamily.contains(" "))
                            fFamily = "'" + fFamily + "'";
                    }
                    if (f.getName() != null) {
                        String fName = f.getName();
                        if (fName.contains(" "))
                            fName = "'" + fName + "'";
                        fFamily = fName + "," + fFamily;
                    }
                    if (f.isBold())
                        listStyle.append("font-weight:bold; ");
                    if (f.isItalic())
                        listStyle.append("font-style:italic; ");

                    fSize = Integer.toString(f.getSize()) + "px";
                }
            }

            if (getListColor() != null && getListColor().getAlpha() == 255) {
                // background shouldn't be transparent
                bgColor = getWebColor(getListColor().getRGB());
            }
            if (getForeground() != null) {
                fgColor = getWebColor(getForeground().getRGB());
            }
            Insets _padding = getPadding();
            if (getPadding() != null)
                padding = _padding.top + "px " + _padding.right + "px " + _padding.bottom + "px "
                        + _padding.left + "px";

            listStyle.append("font-family:" + fFamily + "; ");
            listStyle.append("background-color: " + bgColor + "; ");
            listStyle.append("color: " + fgColor + "; ");
            listStyle.append("font-size:" + fSize + "; ");
            listStyle.append("min-width:" + (getSize().width - 6) + "px; "); // extract padding and border
            listStyle.append("margin: " + margin + "; ");
            listStyle.append("padding: " + padding + "; ");
            listStyle.append(
                    "text-align:" + TemplateGenerator.getHorizontalAlignValue(getHorizontalAlignment()));
            listStyle.append("\"");

            response.write("<ul " + listStyle + ">");
        }

        /*
         * (non-Javadoc)
         *
         * @see org.apache.wicket.extensions.ajax.markup.html.autocomplete.IAutoCompleteRenderer#renderFooter(org.apache.wicket.Response)
         */
        public void renderFooter(Response response) {
            response.write("</ul>"); //$NON-NLS-1$
        }

        /**
         * Returns web color representation of int rgba color by
         * removing the alpha value
         *
         * @param color int representation of rgba color
         * @return web color of form #rrggbb
         */
        private String getWebColor(int color) {
            String webColor = Integer.toHexString(color);
            int startIdx = webColor.length() - 6;
            if (startIdx < 0)
                startIdx = 0;
            webColor = webColor.substring(startIdx);

            StringBuilder sb = new StringBuilder();
            sb.append('#');
            int nrMissing0 = 6 - webColor.length();
            for (int i = 0; i < nrMissing0; i++) {
                sb.append('0');
            }
            sb.append(webColor);

            return sb.toString();
        }
    };

    AutoCompleteBehavior<Object> beh = new AutoCompleteBehavior<Object>(renderer, behSettings) {
        private static final long serialVersionUID = 1L;

        /**
         * @see org.apache.wicket.extensions.ajax.markup.html.autocomplete.AutoCompleteBehavior#getChoices(java.lang.String)
         */
        @Override
        protected Iterator<Object> getChoices(String input) {
            String filteredInput = filterInput(input);
            if (changeListener != null)
                dlm.getValueList().removeListDataListener(changeListener);
            try {
                dlm.fill(parentState, getDataProviderID(), filteredInput, false);
                return dlm.iterator();
            } catch (Exception ex) {
                Debug.error(ex);
            } finally {
                if (changeListener != null)
                    dlm.getValueList().addListDataListener(changeListener);
            }
            return Collections.emptyList().iterator();
        }

        /**
         * filters the input in case of masked input (removes the mask)
         */
        private String filterInput(String input) {
            String displayFormat = WebDataLookupField.this.parsedFormat.getDisplayFormat();
            if (displayFormat != null && displayFormat.length() > 0
                    && input.length() == displayFormat.length()) {
                int index = firstBlankSpacePosition(input, displayFormat);
                if (index == -1)
                    return input;
                return input.substring(0, index);
            }
            return input;
        }

        /**
         * Computes the index of the first space char found in the input and is not ' ' nor '*' in the format
         * Example:
         * input  '12 - 3  -  '
         * format '## - ## - #'
         * returns 6
         * @param input
         * @param displayFormat
         * @return The index of the first space char found in the input and is not ' ' nor '*' in the format
         */
        private int firstBlankSpacePosition(String input, String displayFormat) {
            for (int i = 0; i < input.length(); i++) {
                if ((input.charAt(i) == ' ') && (displayFormat.charAt(i) != ' ')
                        && (displayFormat.charAt(i) != '*'))
                    return i;
            }
            return 0;
        }

        /**
         * @see org.apache.wicket.ajax.AbstractDefaultAjaxBehavior#getFailureScript()
         */
        @Override
        protected CharSequence getFailureScript() {
            return "onAjaxError();"; //$NON-NLS-1$
        }

        /**
         * @see org.apache.wicket.ajax.AbstractDefaultAjaxBehavior#getPreconditionScript()
         */
        @Override
        protected CharSequence getPreconditionScript() {
            return "onAjaxCall();" + super.getPreconditionScript(); //$NON-NLS-1$
        }

        // need to set this behavior to true (enterHidesWithNoSelection) because otherwise the onKeyDown events
        // or other events for the component with type ahead would be null in Firefox, and would not execute as
        // expected on the other browsers...
        @Override
        public void renderHead(IHeaderResponse response) {
            settings.setShowListOnEmptyInput(Boolean.TRUE.equals(UIUtils.getUIProperty(getScriptObject(),
                    application, IApplication.TYPE_AHEAD_SHOW_POPUP_WHEN_EMPTY, Boolean.TRUE)));
            settings.setShowListOnFocusGain(Boolean.TRUE.equals(UIUtils.getUIProperty(getScriptObject(),
                    application, IApplication.TYPE_AHEAD_SHOW_POPUP_ON_FOCUS_GAIN, Boolean.TRUE)));
            if (!getScriptObject().isReadOnly() && getScriptObject().isEnabled()) {
                super.renderHead(response);
                response.renderJavascript("Wicket.AutoCompleteSettings.enterHidesWithNoSelection = true;", //$NON-NLS-1$
                        "AutocompleteSettingsID"); //$NON-NLS-1$
            }
        }

        /**
         * @see org.apache.wicket.behavior.AbstractBehavior#isEnabled(org.apache.wicket.Component)
         */
        @Override
        public boolean isEnabled(Component component) {
            IFormUIInternal<?> formui = findParent(IFormUIInternal.class);
            if (formui != null && formui.isDesignMode()) {
                return false;
            }
            return super.isEnabled(component) && WebClientSession.get().useAjax();
        }
    };
    add(beh);
}

From source file:io.ucoin.ucoinj.web.pages.home.HomePage.java

License:Open Source License

public HomePage(final PageParameters parameters) {
    super(parameters);
    setUseGlobalFeedback(false);//from w  w w.j a va2 s .c o m

    form = new Form<HomePage>("searchForm");
    form.setOutputMarkupId(true);
    add(form);

    // FeedbackPanel
    final FeedbackPanel feedback = new JQueryFeedbackPanel("feedback");
    feedback.setOutputMarkupId(true);
    form.add(feedback);

    IAutoCompleteRenderer autoCompleteRenderer = new IAutoCompleteRenderer<String>() {
        private static final long serialVersionUID = 1L;

        public void renderHeader(Response response) {
            response.write("<ul>");
        }

        public void render(String choice, Response response, String criteria) {
            response.write("<li textvalue=\"" + choice + "\"");
            response.write(">");

            // Put the substring after the criteria in bold
            if (choice.startsWith(criteria) && choice.length() > criteria.length()) {
                choice = criteria + "<b>" + choice.substring(criteria.length()) + "</b>";
            }

            response.write(choice);
            response.write("</li>");
        }

        public void renderFooter(Response response, int count) {
            response.write("</ul>");
        }
    };

    // Search text
    searchTextField = new AutoCompleteTextField<String>("searchText",
            new PropertyModel<String>(this, "searchQuery"), autoCompleteRenderer) {
        private static final long serialVersionUID = 1L;

        @Override
        protected Iterator<String> getChoices(String input) {
            return doSuggestions(input).iterator();
        }
    };
    searchTextField.add(new AjaxFormComponentUpdatingBehavior("keyup") {
        @Override
        protected void onUpdate(AjaxRequestTarget target) {
            // do search
            searchTextField.updateModel();
        }

        @Override
        protected void onError(AjaxRequestTarget target, RuntimeException e) {
            // Here the Component's model object will remain unchanged,
            // so that it doesn't hold invalid input
        }
    });
    searchTextField.setRequired(true);
    form.add(searchTextField);

    // Submit button
    {
        Button searchButton = new AjaxButton("searchButton") {

            @Override
            protected void onSubmit(AjaxRequestTarget target, Form<?> form) {
                // do search
                doSearch(target, searchQuery);

                // Force to hide autocomplete choices
                target.appendJavaScript("$('div.wicket-aa-container').hide();" + "$('#"
                        + searchTextField.getMarkupId() + "').attr('autocomplete', 'off');");
            }
        };
        searchButton.setDefaultFormProcessing(false);
        searchButton.setOutputMarkupId(true);
        form.add(searchButton);
        form.setDefaultButton(searchButton);
    }

    //form.add(new AjaxFormValidatingBehavior("keyup", Duration.ONE_SECOND));

    // Search result
    {
        // Parent container
        resultParent = new WebMarkupContainer("resultParent");
        resultParent.setOutputMarkupId(true);
        resultParent.setOutputMarkupPlaceholderTag(true);
        resultParent.setVisible(false);
        add(resultParent);

        // History items
        {
            resultListView = new ListView<SearchResult>("resultItems", new ListModel<SearchResult>()) {
                protected void populateItem(ListItem<SearchResult> item) {
                    SearchResult result = item.getModelObject();

                    // link
                    PageParameters pageParameters = new PageParameters();
                    pageParameters.add(CurrencyPage.CURRENCY_PARAMETER, result.getId());
                    BookmarkablePageLink link = new BookmarkablePageLink("openCurrencyLink", CurrencyPage.class,
                            pageParameters);
                    item.add(link);

                    // Currency name
                    Label label = new Label("currencyName", result.getValue());
                    label.setEscapeModelStrings(false);
                    label.setOutputMarkupPlaceholderTag(false);
                    link.add(label);
                }
            };
            resultListView.setReuseItems(true);
            resultListView.setOutputMarkupId(true);
            resultParent.add(resultListView);
        }
    }
}