com.google.gerrit.client.SearchPanel.java Source code

Introduction

Here is the source code for com.google.gerrit.client.SearchPanel.java

Source

// Copyright (C) 2009 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.google.gerrit.client;

import com.google.gerrit.client.changes.QueryScreen;
import com.google.gerrit.client.ui.HintTextBox;
import com.google.gerrit.common.PageLinks;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyPressEvent;
import com.google.gwt.event.dom.client.KeyPressHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.SuggestBox;
import com.google.gwt.user.client.ui.SuggestOracle.Suggestion;
import com.google.gwtexpui.globalkey.client.GlobalKey;
import com.google.gwtexpui.globalkey.client.KeyCommand;

class SearchPanel extends Composite {
    private final HintTextBox searchBox;
    private HandlerRegistration regFocus;

    SearchPanel() {
        final FlowPanel body = new FlowPanel();
        initWidget(body);
        setStyleName(Gerrit.RESOURCES.css().searchPanel());

        searchBox = new HintTextBox();
        final MySuggestionDisplay suggestionDisplay = new MySuggestionDisplay();
        searchBox.addKeyPressHandler(new KeyPressHandler() {
            @Override
            public void onKeyPress(final KeyPressEvent event) {
                if (event.getNativeEvent().getKeyCode() == KeyCodes.KEY_ENTER) {
                    if (!suggestionDisplay.isSuggestionSelected) {
                        doSearch();
                    }
                }
            }
        });

        final SuggestBox suggestBox = new SuggestBox(new SearchSuggestOracle(), searchBox, suggestionDisplay);
        searchBox.setStyleName("gwt-TextBox");
        searchBox.setVisibleLength(70);
        searchBox.setHintText(Gerrit.C.searchHint());

        final Button searchButton = new Button(Gerrit.C.searchButton());
        searchButton.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                doSearch();
            }
        });

        body.add(suggestBox);
        body.add(searchButton);
    }

    void setText(final String query) {
        searchBox.setText(query);
    }

    @Override
    protected void onLoad() {
        super.onLoad();
        if (regFocus == null) {
            regFocus = GlobalKey.addApplication(this, new KeyCommand(0, '/', Gerrit.C.keySearch()) {
                @Override
                public void onKeyPress(final KeyPressEvent event) {
                    event.preventDefault();
                    searchBox.setFocus(true);
                    searchBox.selectAll();
                }
            });
        }
    }

    @Override
    protected void onUnload() {
        if (regFocus != null) {
            regFocus.removeHandler();
            regFocus = null;
        }
    }

    private void doSearch() {
        final String query = searchBox.getText().trim();
        if ("".equals(query)) {
            return;
        }

        searchBox.setFocus(false);

        if (query.matches("^[1-9][0-9]*$")) {
            Gerrit.display(PageLinks.toChange(Change.Id.parse(query)));
        } else {
            Gerrit.display(PageLinks.toChangeQuery(query), QueryScreen.forQuery(query));
        }
    }

    private static class MySuggestionDisplay extends SuggestBox.DefaultSuggestionDisplay {
        private boolean isSuggestionSelected;

        @Override
        protected Suggestion getCurrentSelection() {
            Suggestion currentSelection = super.getCurrentSelection();
            isSuggestionSelected = currentSelection != null;
            return currentSelection;
        }
    }
}