Java tutorial
/** * The contents of this file are subject to the license and copyright * detailed in the LICENSE file at the root of the source * tree and available online at * * https://github.com/keeps/roda */ package org.roda.wui.client.common.search; import java.util.ArrayList; import java.util.List; import java.util.Map; import org.roda.core.data.common.RodaConstants; import org.roda.core.data.v2.index.filter.BasicSearchFilterParameter; import org.roda.core.data.v2.index.filter.DateIntervalFilterParameter; import org.roda.core.data.v2.index.filter.FilterParameter; import org.roda.core.data.v2.index.filter.LongRangeFilterParameter; import org.roda.core.data.v2.index.filter.SimpleFilterParameter; import org.roda.wui.client.common.utils.ListboxUtils; import org.roda.wui.client.common.utils.Tree; import org.roda.wui.common.client.ClientLogger; import org.roda.wui.common.client.tools.Humanize; import com.google.gwt.core.client.GWT; import com.google.gwt.dom.client.Style.Unit; import com.google.gwt.event.dom.client.ChangeEvent; import com.google.gwt.event.dom.client.ChangeHandler; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.event.logical.shared.HasValueChangeHandlers; import com.google.gwt.event.logical.shared.ValueChangeEvent; import com.google.gwt.event.logical.shared.ValueChangeHandler; import com.google.gwt.event.shared.HandlerRegistration; import com.google.gwt.i18n.client.DateTimeFormat; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.CheckBox; import com.google.gwt.user.client.ui.Composite; import com.google.gwt.user.client.ui.FlowPanel; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.ListBox; import com.google.gwt.user.client.ui.TextBox; import com.google.gwt.user.datepicker.client.DateBox; import com.google.gwt.user.datepicker.client.DateBox.DefaultFormat; import config.i18n.client.ClientMessages; public class SearchFieldPanel extends Composite implements HasValueChangeHandlers<String> { private static final ClientMessages messages = GWT.create(ClientMessages.class); @SuppressWarnings("unused") private ClientLogger logger = new ClientLogger(getClass().getName()); private FlowPanel panel; private FlowPanel leftPanel; private FlowPanel inputPanel; private Button remove = new Button("<i class=\"fa fa-close\"></i>"); private Label duplicateWarning; private SearchField searchField; // Simple search field private Label fieldLabel; private ListBox fieldBox; // Complex search field private ListBox searchAdvancedFields; private Map<String, SearchField> searchFields; // Text private TextBox inputText; // Date private DateBox inputDateBox; // Date interval private DateBox inputDateBoxFrom; private DateBox inputDateBoxTo; // Numeric private TextBox inputNumeric; // Numeric interval private TextBox inputNumericFrom; private TextBox inputNumericTo; // Storage private TextBox inputStorageSizeFrom; private TextBox inputStorageSizeTo; private ListBox inputStorageSizeList; // Boolean private CheckBox inputCheckBox; // Suggestion private SearchSuggestBox<?> inputSearchSuggestBox = null; // controlled private ListBox inputControlled; public SearchFieldPanel() { panel = new FlowPanel(); leftPanel = new FlowPanel(); inputPanel = new FlowPanel(); fieldLabel = new Label(); fieldBox = new ListBox(); searchAdvancedFields = new ListBox(); duplicateWarning = new Label(); DefaultFormat dateFormat = new DateBox.DefaultFormat(DateTimeFormat.getFormat("yyyy-MM-dd")); inputText = new TextBox(); inputText.getElement().setAttribute("title", "input text box"); inputDateBox = new DateBox(); inputDateBox.setFormat(dateFormat); inputDateBox.getDatePicker().setYearAndMonthDropdownVisible(true); inputDateBox.getDatePicker().setYearArrowsVisible(true); inputDateBox.setFireNullValues(true); inputDateBox.getElement().setPropertyString("placeholder", messages.searchFieldDatePlaceHolder()); inputDateBox.getElement().setAttribute("title", "input date box"); inputDateBoxFrom = new DateBox(); inputDateBoxFrom.setFormat(dateFormat); inputDateBox.getDatePicker().setYearAndMonthDropdownVisible(true); inputDateBoxFrom.getDatePicker().setYearArrowsVisible(true); inputDateBoxFrom.setFireNullValues(true); inputDateBoxFrom.getElement().setPropertyString("placeholder", messages.searchFieldDateFromPlaceHolder()); inputDateBoxFrom.getElement().setAttribute("title", "input date box from"); inputDateBoxTo = new DateBox(); inputDateBoxTo.setFormat(dateFormat); inputDateBox.getDatePicker().setYearAndMonthDropdownVisible(true); inputDateBoxTo.getDatePicker().setYearArrowsVisible(true); inputDateBoxTo.setFireNullValues(true); inputDateBoxTo.getElement().setPropertyString("placeholder", messages.searchFieldDateToPlaceHolder()); inputDateBoxTo.getElement().setAttribute("title", "input date box to"); inputNumeric = new TextBox(); inputNumeric.getElement().setPropertyString("placeholder", messages.searchFieldNumericPlaceHolder()); inputNumeric.getElement().setAttribute("type", "number"); inputNumeric.getElement().setAttribute("title", "input numeric box"); inputNumericFrom = new TextBox(); inputNumericFrom.getElement().setPropertyString("placeholder", messages.searchFieldNumericFromPlaceHolder()); inputNumericFrom.getElement().setAttribute("type", "number"); inputNumericFrom.getElement().setAttribute("title", "input numeric box from"); inputNumericTo = new TextBox(); inputNumericTo.getElement().setPropertyString("placeholder", messages.searchFieldNumericToPlaceHolder()); inputNumericTo.getElement().setAttribute("type", "number"); inputNumericTo.getElement().setAttribute("title", "input numeric box from to"); inputStorageSizeFrom = new TextBox(); inputStorageSizeFrom.getElement().setPropertyString("placeholder", messages.searchFieldNumericFromPlaceHolder()); inputStorageSizeFrom.getElement().setAttribute("type", "number"); inputStorageSizeFrom.getElement().setAttribute("title", "input storage size from"); inputStorageSizeTo = new TextBox(); inputStorageSizeTo.getElement().setPropertyString("placeholder", messages.searchFieldNumericToPlaceHolder()); inputStorageSizeTo.getElement().setAttribute("type", "number"); inputStorageSizeTo.getElement().setAttribute("title", "input storage size to"); inputStorageSizeList = new ListBox(); for (String unit : Humanize.UNITS) { inputStorageSizeList.addItem(unit, unit); } inputStorageSizeList.getElement().setAttribute("title", "input storage size list"); inputCheckBox = new CheckBox(); inputCheckBox.getElement().setAttribute("title", "input checkbox"); inputControlled = new ListBox(); inputControlled.getElement().setAttribute("title", "input controlled"); panel.add(leftPanel); initWidget(panel); searchAdvancedFields.addChangeHandler(new ChangeHandler() { @Override public void onChange(ChangeEvent event) { listBoxSearchField(searchAdvancedFields.getSelectedValue()); SearchFieldPanel.this.onChange(); } }); panel.addStyleName("search-field"); leftPanel.addStyleName("search-field-left-panel"); inputPanel.addStyleName("search-field-input-panel"); inputPanel.addStyleName("full_width"); remove.addStyleName("search-field-remove"); fieldLabel.addStyleName("search-field-label"); fieldBox.addStyleName("form-listbox"); searchAdvancedFields.addStyleName("form-listbox"); duplicateWarning.addStyleName("search-field-warning-label"); duplicateWarning.setVisible(false); inputText.addStyleName("form-textbox"); inputDateBox.addStyleName("form-textbox form-textbox-small"); inputDateBoxFrom.addStyleName("form-textbox form-textbox-small"); inputDateBoxTo.addStyleName("form-textbox form-textbox-small"); inputNumeric.addStyleName("form-textbox form-textbox-small"); inputNumericFrom.addStyleName("form-textbox form-textbox-small"); inputNumericTo.addStyleName("form-textbox form-textbox-small"); inputStorageSizeFrom.addStyleName("form-textbox form-textbox-small"); inputStorageSizeTo.addStyleName("form-textbox form-textbox-small"); inputStorageSizeList.addStyleName("form-listbox"); inputCheckBox.addStyleName("form-checkbox"); inputControlled.addStyleName("form-controlled"); } public SearchField getSearchField() { return searchField; } public void setSearchField(SearchField searchField) { this.searchField = searchField; if (searchField.getTerms() != null) { for (Tree<String> term : searchField.getTerms().getChildren()) { inputControlled.addItem(term.getLabel(), term.getValue()); } // TODO add terms to listbox } } public void setSearchAdvancedFields(ListBox searchAdvancedFieldOptions) { ListboxUtils.copyValues(searchAdvancedFieldOptions, searchAdvancedFields); } public void setSearchFields(Map<String, SearchField> searchFields) { this.searchFields = searchFields; } public void selectSearchField(String field) { ListboxUtils.select(searchAdvancedFields, field); listBoxSearchField(field); } public void selectFirstSearchField() { if (searchAdvancedFields.getItemCount() > 0) { listBoxSearchField(searchAdvancedFields.getValue(0)); } } public String getFirstSearchField() { String searchField = null; if (searchAdvancedFields.getItemCount() > 0) { searchField = searchAdvancedFields.getValue(0); } return searchField; } public ListBox getAdvancedFieldBox() { return searchAdvancedFields; } public void addRemoveClickHandler(ClickHandler clickHandler) { remove.addClickHandler(clickHandler); } public String getField() { return searchAdvancedFields.getSelectedValue(); } public FilterParameter getFilter() { FilterParameter filterParameter = null; String type = searchField.getType(); List<String> searchFields = searchField.getSearchFields(); if (searchFields != null && !searchFields.isEmpty()) { String field = searchFields.get(0); if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_DATE) && dateValid(inputDateBox)) { filterParameter = new SimpleFilterParameter(field, inputDateBox.getValue().toString()); } else if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_DATE_INTERVAL) && dateIntervalValid(inputDateBoxFrom, inputDateBoxTo) && searchFields.size() >= 2) { String fieldTo = searchField.getSearchFields().get(1); filterParameter = new DateIntervalFilterParameter(field, fieldTo, inputDateBoxFrom.getValue(), inputDateBoxTo.getValue()); } else if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_DATE_INTERVAL) && dateIntervalValid(inputDateBoxFrom, inputDateBoxTo)) { filterParameter = new DateIntervalFilterParameter(field, field, inputDateBoxFrom.getValue(), inputDateBoxTo.getValue()); } else if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_NUMERIC) && valid(inputNumeric)) { filterParameter = new BasicSearchFilterParameter(field, inputNumeric.getValue()); } else if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_NUMERIC_INTERVAL) && intervalValid(inputNumericFrom, inputNumericTo)) { filterParameter = new LongRangeFilterParameter(field, Long.valueOf(inputNumericFrom.getValue()), Long.valueOf(inputNumericTo.getValue())); } else if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_STORAGE) && intervalValid(inputStorageSizeFrom, inputStorageSizeTo)) { filterParameter = new LongRangeFilterParameter(field, Humanize.parseFileSize(inputStorageSizeFrom.getValue(), inputStorageSizeList.getSelectedValue()), Humanize.parseFileSize(inputStorageSizeTo.getValue(), inputStorageSizeList.getSelectedValue())); } else if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_BOOLEAN) && valid(inputCheckBox)) { filterParameter = new SimpleFilterParameter(field, Boolean.toString(inputCheckBox.getValue())); } else if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_SUGGEST) && valid(inputSearchSuggestBox)) { filterParameter = new SimpleFilterParameter( inputSearchSuggestBox.isAllowPartial() ? field + RodaConstants.INDEX_SEARCH_SUFFIX : field, inputSearchSuggestBox.getValue()); } else if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_CONTROLLED)) { filterParameter = new SimpleFilterParameter(field, inputControlled.getSelectedValue()); } else if (valid(inputText)) { filterParameter = new BasicSearchFilterParameter(field, inputText.getValue()); } } return filterParameter; } public void listBoxSearchField(String field) { SearchField searchField = searchFields.get(field); setSearchField(searchField); leftPanel.clear(); leftPanel.add(searchAdvancedFields); leftPanel.add(inputPanel); setInputPanel(searchField.getType()); panel.add(remove); panel.add(duplicateWarning); panel.removeStyleName("full_width"); } public void simpleSearchField(String field, String label, String type, Tree<String> terms) { List<String> searchFields = new ArrayList<>(); searchFields.add(field); setSearchField(new SearchField(field, searchFields, label, type, terms)); fieldLabel.setText(label); leftPanel.clear(); leftPanel.add(fieldBox); leftPanel.add(inputPanel); setInputPanel(type); panel.add(remove); panel.removeStyleName("full_width"); } private void setInputPanel(String type) { inputPanel.clear(); inputPanel.removeStyleName("full_width"); if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_DATE)) { inputPanel.add(inputDateBox); } else if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_DATE_INTERVAL)) { inputPanel.add(inputDateBoxFrom); inputPanel.add(inputDateBoxTo); } else if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_NUMERIC)) { inputPanel.add(inputNumeric); } else if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_NUMERIC_INTERVAL)) { inputPanel.add(inputNumericFrom); inputPanel.add(inputNumericTo); } else if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_STORAGE)) { inputPanel.add(inputStorageSizeFrom); inputPanel.add(inputStorageSizeTo); inputPanel.add(inputStorageSizeList); } else if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_BOOLEAN)) { inputPanel.add(inputCheckBox); } else if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_SUGGEST)) { } else if (type.equals(RodaConstants.SEARCH_FIELD_TYPE_CONTROLLED)) { inputPanel.add(inputControlled); } else { inputPanel.add(inputText); inputPanel.addStyleName("full_width"); } } public void addInputSearchSuggestBox(SearchSuggestBox<?> searchSuggestBox) { this.inputSearchSuggestBox = searchSuggestBox; inputPanel.add(searchSuggestBox); inputSearchSuggestBox.addStyleName("form-textbox"); inputPanel.addStyleName("full_width"); } private boolean dateIntervalValid(DateBox inputFrom, DateBox inputTo) { if (inputFrom.getValue() != null && inputTo.getValue() != null) { return true; } if (inputFrom.getValue() != null && inputTo.getTextBox().getText().isEmpty()) { return true; } if (inputFrom.getTextBox().getText().isEmpty() && inputTo.getValue() != null) { return true; } return false; } private boolean dateValid(DateBox input) { return input.getValue() != null; } private boolean valid(TextBox input) { return !input.getValue().isEmpty(); } private boolean valid(SearchSuggestBox<?> input) { return !input.getValue().isEmpty(); } private boolean valid(CheckBox input) { return input.getValue(); } private boolean intervalValid(TextBox inputFrom, TextBox inputTo) { try { if (!inputFrom.getValue().isEmpty() && !inputTo.getValue().isEmpty()) { return true; } if (!inputFrom.getValue().isEmpty() || !inputTo.getValue().isEmpty()) { return true; } } catch (Exception e) { // do nothing } return false; } @Override public HandlerRegistration addValueChangeHandler(ValueChangeHandler<String> handler) { return addHandler(handler, ValueChangeEvent.getType()); } public HandlerRegistration addListBoxChangeHandler(ChangeHandler handler) { return searchAdvancedFields.addChangeHandler(handler); } protected void onChange() { ValueChangeEvent.fire(this, searchField.getId()); } public void setWarningVisible(boolean visible) { setWarningVisible(visible, null); } public void setWarningVisible(boolean visible, String field) { duplicateWarning.setVisible(visible); if (visible) { duplicateWarning.setText(messages.searchDuplicateWarningMessage(field)); duplicateWarning.getElement().getStyle().setMarginLeft(searchAdvancedFields.getOffsetWidth() + 2, Unit.PX); panel.removeStyleName("search-field"); panel.addStyleName("search-field-warning"); } else { panel.removeStyleName("search-field-warning"); panel.addStyleName("search-field"); } } }