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package ui;
import model.BrowserState;
import model.html.HtmlParser;
import model.util.Event;
import model.util.EventLog;
import org.json.JSONArray;
import persistance.JsonUtils;
import javax.swing.*;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayDeque;
import java.util.ArrayList;
// Broad JFrame usage taken from here: https://docs.oracle.com/javase/tutorial/uiswing/components/frame.html
public class BrowserWindow extends JFrame {
public static final int WIDTH = 1200;
public static final int HEIGHT = 800;
private static final String storagePath = "data/apus.cache";
private BrowserCanvas canvas;
private BrowserBar browserBar;
private BrowserState state;
// MODIFIES: this
// EFFECTS: creates a new BrowserWindow program for rendering pages
public BrowserWindow() {
super("apus");
state = new BrowserState(new ArrayDeque<>(), "");
canvas = new BrowserCanvas(new ArrayList<>());
// render("data/example.html");
browserBar = new BrowserBar(this);
getContentPane().add(browserBar, BorderLayout.SOUTH);
// pack();
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(WIDTH, HEIGHT);
render("/home/apropos/Projects/website/j-james/index.html");
// browserBar.addTab("/home/apropos/Projects/website/j-james/index.html");
setVisible(true);
setClosingBehavior();
initializeBrowser();
}
// MODIFIES: this
// EFFECTS: Renders an arbitrary page
public void render(String uri) {
state.setCurrentTab(uri);
remove(canvas);
// System.out.println(state.getCurrentTab());
try {
Path path = Paths.get(state.getCurrentTab());
String file = new String(Files.readAllBytes(path));
HtmlParser parser = new HtmlParser();
canvas = new BrowserCanvas(parser.parseHtml(file));
} catch (Exception e) {
System.out.println("Could not read file, rendering empty page: " + e.getMessage());
canvas = new BrowserCanvas(new ArrayList<>());
}
add(canvas);
repaint();
setVisible(true);
}
// EFFECTS: Prompts the user to save their tabs before quitting
private void setClosingBehavior() {
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
if (state.getTabs().size() > 0) {
saveCurrentTabs();
}
for (Event event : EventLog.getInstance()) {
System.out.println(event);
}
super.windowClosing(e);
}
});
}
// EFFECTS: sets up the browser upon launching
private void initializeBrowser() {
if (new File(storagePath).length() > 2) {
restorePreviousTabs();
}
}
// MODIFIES: this
// EFFECTS: prompts the user to restore their previous tabs
private void restorePreviousTabs() {
int answer = JOptionPane.showOptionDialog(
this, "Would you like to restore your previous tabs?", "apus",
JOptionPane.YES_NO_OPTION, JOptionPane.INFORMATION_MESSAGE,
null, new String[]{"Yes", "No"}, "Yes");
if (answer == 0) {
try {
JSONArray state = JsonUtils.readFromFile(storagePath);
for (int i = 0; i < state.length(); i++) {
this.browserBar.addTab((String) state.get(i));
this.state.addTab((String) state.get(i));
}
} catch (Exception e) {
System.out.println("Restoring state from disk failed with " + e.toString());
}
}
}
// EFFECTS: prompts the user to save their current tabs before closing
private void saveCurrentTabs() {
int answer = JOptionPane.showOptionDialog(
this, "Would you like to save your current tabs?", "apus",
JOptionPane.YES_NO_OPTION, JOptionPane.INFORMATION_MESSAGE,
null, new String[]{"Yes", "No"}, "Yes");
if (answer == 0) {
JsonUtils.writeToFile(new JSONArray(state.getTabs()), storagePath);
} else {
JsonUtils.writeToFile(new JSONArray(), storagePath);
}
}
public BrowserState getBrowserState() {
return this.state;
}
}
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