com.android.tools.idea.npw.ChooseApiLevelDialog.java Source code

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Here is the source code for com.android.tools.idea.npw.ChooseApiLevelDialog.java

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/*
 * Copyright (C) 2014 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.android.tools.idea.npw;

import com.android.tools.idea.stats.Distribution;
import com.android.tools.idea.ui.DistributionChartComponent;
import com.google.common.collect.ImmutableMap;
import com.intellij.ide.BrowserUtil;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.DialogWrapper;
import com.intellij.ui.JBColor;
import com.intellij.ui.components.JBLabel;
import com.intellij.ui.components.JBScrollPane;
import com.intellij.util.ui.JBUI;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import javax.swing.*;
import javax.swing.event.MouseInputAdapter;
import java.awt.*;
import java.awt.event.MouseEvent;
import java.awt.font.TextAttribute;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.List;
import java.util.Map;

/**
 * An explanation dialog that helps the user select an API level.
 */
public class ChooseApiLevelDialog extends DialogWrapper
        implements DistributionChartComponent.SelectionChangedListener {
    private JPanel myPanel;
    private DistributionChartComponent myDistributionChart;
    private JPanel myChartPanel; // Same as myDistributionChart. The form complains if the binding is not a JPanel (can't be a subclass)
    private JBLabel myDescriptionLeft;
    private JBScrollPane myScrollPane;
    private JBLabel myDescriptionRight;
    private JBLabel myIntroducedLabel;
    private JBLabel myLearnMoreLinkLabel;
    private int mySelectedApiLevel = -1;

    public ChooseApiLevelDialog(@Nullable Project project, int selectedApiLevel) {
        super(project);
        mySelectedApiLevel = selectedApiLevel;

        Window window = getWindow();
        // Allow creation in headless mode for tests
        if (window != null) {
            window.setMinimumSize(JBUI.size(400, 680));
            window.setPreferredSize(JBUI.size(1100, 750));
            window.setMaximumSize(JBUI.size(1100, 800));
        } else {
            assert ApplicationManager.getApplication().isUnitTestMode();
        }
        setTitle("Android Platform/API Version Distribution");

        init();
    }

    @Nullable
    @Override
    protected JComponent createCenterPanel() {
        myDistributionChart.registerDistributionSelectionChangedListener(this);
        myDistributionChart.init();
        myScrollPane.getViewport().setOpaque(false);
        myScrollPane.setOpaque(false);
        myScrollPane.setBorder(null);
        myDescriptionLeft.setForeground(JBColor.foreground());
        myDescriptionLeft.setBackground(JBColor.background());
        myDescriptionRight.setForeground(JBColor.foreground());
        myDescriptionRight.setBackground(JBColor.background());
        myLearnMoreLinkLabel.setForeground(JBColor.blue);
        myLearnMoreLinkLabel.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        Map<TextAttribute, ?> attributes = ImmutableMap.of(TextAttribute.UNDERLINE, TextAttribute.UNDERLINE_ON);
        myLearnMoreLinkLabel.setFont(myLearnMoreLinkLabel.getFont().deriveFont(attributes));
        myLearnMoreLinkLabel.addMouseListener(new MouseInputAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                try {
                    BrowserUtil.browse(new URL(myLearnMoreLinkLabel.getText()));
                } catch (MalformedURLException e1) {
                    // Pass
                }
            }
        });
        if (mySelectedApiLevel >= 0) {
            myDistributionChart.selectDistributionApiLevel(mySelectedApiLevel);
        }
        return myPanel;
    }

    @Override
    public void onDistributionSelected(@NotNull Distribution d) {
        int halfwayIndex = d.getDescriptionBlocks().size() / 2;
        myDescriptionLeft.setText(getHtmlFromBlocks(d.getDescriptionBlocks().subList(0, halfwayIndex + 1)));
        myDescriptionRight.setText(getHtmlFromBlocks(
                d.getDescriptionBlocks().subList(halfwayIndex + 1, d.getDescriptionBlocks().size())));
        mySelectedApiLevel = d.getApiLevel();
        myIntroducedLabel.setText(d.getName());
        myLearnMoreLinkLabel.setText(d.getUrl());
    }

    private static String getHtmlFromBlocks(List<Distribution.TextBlock> blocks) {
        StringBuilder sb = new StringBuilder();
        sb.append("<html>");
        for (Distribution.TextBlock block : blocks) {
            sb.append("<h3>").append(block.title).append("</h3>");
            sb.append(block.body).append("<br>");
        }
        sb.append("</html>");
        return sb.toString();
    }

    /**
     * Get the user's choice of API level
     * @return -1 if no selection was made.
     */
    public int getSelectedApiLevel() {
        return mySelectedApiLevel;
    }

    private void createUIComponents() {
        myChartPanel = myDistributionChart = new DistributionChartComponent();
    }
}