Added stop button

src/main/java/com/rarchives/ripme/ripper/AbstractRipper.java

@@ -42,6 +42,21 @@ public abstract class AbstractRipper
     public abstract String getHost();
     public abstract String getGID(URL url) throws MalformedURLException;
 
+    private boolean shouldStop = false;
+
+    public void stop() {
+        shouldStop = true;
+    }
+    public boolean isStopped() {
+        return shouldStop;
+    }
+    protected void stopCheck() throws IOException {
+        if (shouldStop) {
+            threadPool.waitForThreads();
+            throw new IOException("Ripping interrupted");
+        }
+    }
+
     /**
      * Ensures inheriting ripper can rip this URL, raises exception if not.
      * Otherwise initializes working directory and thread pool.
@@ -117,6 +132,11 @@ public abstract class AbstractRipper
      *      Sub-directory of the working directory to save the images to.
      */
     public void addURLToDownload(URL url, String prefix, String subdirectory) {
+        try {
+            stopCheck();
+        } catch (IOException e) {
+            return;
+        }
         String saveAs = url.toExternalForm();
         saveAs = saveAs.substring(saveAs.lastIndexOf('/')+1);
         if (saveAs.indexOf('?') >= 0) { saveAs = saveAs.substring(0, saveAs.indexOf('?')); }

src/main/java/com/rarchives/ripme/ripper/DownloadFileThread.java

@@ -45,6 +45,12 @@ public class DownloadFileThread extends Thread {
      * Notifies observers upon completion/error/warn.
      */
     public void run() {
+        try {
+            observer.stopCheck();
+        } catch (IOException e) {
+            observer.downloadErrored(url, "Download interrupted");
+            return;
+        }
         if (saveAs.exists()) {
             if (Utils.getConfigBoolean("file.overwrite", false)) {
                 logger.info("[!] Deleting existing file" + prettySaveAs);

src/main/java/com/rarchives/ripme/ripper/rippers/ImgurRipper.java

@@ -100,6 +100,7 @@ public class ImgurRipper extends AbstractRipper {
         index = 0;
         ImgurAlbum album = getImgurAlbum(url);
         for (ImgurImage imgurImage : album.images) {
+            stopCheck();
             String saveAs = workingDir.getCanonicalPath();
             if (!saveAs.endsWith(File.separator)) {
                 saveAs += File.separator;
@@ -217,6 +218,7 @@ public class ImgurRipper extends AbstractRipper {
         logger.info("[ ] Retrieving " + url.toExternalForm());
         Document doc = Jsoup.connect(url.toExternalForm()).get();
         for (Element album : doc.select("div.cover a")) {
+            stopCheck();
             if (!album.hasAttr("href")
                     || !album.attr("href").contains("imgur.com/a/")) {
                 continue;
@@ -236,6 +238,7 @@ public class ImgurRipper extends AbstractRipper {
     private void ripSubreddit(URL url) throws IOException {
         int page = 0;
         while (true) {
+            stopCheck();
             String pageURL = url.toExternalForm();
             if (!pageURL.endsWith("/")) {
                 pageURL += "/";

src/main/java/com/rarchives/ripme/ui/MainWindow.java

@@ -22,7 +22,6 @@ import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
-import java.awt.image.BufferedImage;
 import java.io.File;
 import java.net.MalformedURLException;
 import java.net.URL;
@@ -30,7 +29,6 @@ import java.util.Arrays;
 
 import javax.imageio.ImageIO;
 import javax.swing.DefaultListModel;
-import javax.swing.Icon;
 import javax.swing.ImageIcon;
 import javax.swing.JButton;
 import javax.swing.JCheckBox;
@@ -67,7 +65,8 @@ public class MainWindow implements Runnable, RipStatusHandler {
     
     private static JFrame mainFrame;
     private static JTextField ripTextfield;
-    private static JButton ripButton;
+    private static JButton ripButton,
+                           stopButton;
 
     private static JLabel statusLabel;
     private static JButton openButton;
@@ -198,14 +197,21 @@ public class MainWindow implements Runnable, RipStatusHandler {
         }
 
         ripTextfield = new JTextField("", 20);
-        ImageIcon ripIcon = new ImageIcon(mainIcon.getScaledInstance(20, 20, Image.SCALE_SMOOTH));
+        ImageIcon ripIcon = new ImageIcon(mainIcon);
         ripButton = new JButton("<html><font size=\"5\"><b>Rip</b></font></html>", ripIcon);
+        stopButton = new JButton("<html><font size=\"5\"><b>Stop</b></font></html>");
+        stopButton.setVisible(false);
+        try {
+            Image stopIcon = ImageIO.read(getClass().getClassLoader().getResource("stop.png"));
+            stopButton.setIcon(new ImageIcon(stopIcon));
+        } catch (Exception e) { }
         JPanel ripPanel = new JPanel(new GridBagLayout());
         ripPanel.setBorder(emptyBorder);
 
         gbc.gridx = 0; ripPanel.add(new JLabel("URL:", JLabel.RIGHT), gbc);
         gbc.gridx = 1; ripPanel.add(ripTextfield, gbc);
         gbc.gridx = 2; ripPanel.add(ripButton, gbc);
+                       ripPanel.add(stopButton, gbc);
 
         statusLabel  = new JLabel("Inactive");
         statusLabel.setHorizontalAlignment(JLabel.CENTER);
@@ -329,6 +335,23 @@ public class MainWindow implements Runnable, RipStatusHandler {
     private void setupHandlers() {
         ripButton.addActionListener(new RipButtonHandler());
         ripTextfield.addActionListener(new RipButtonHandler());
+        stopButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent event) {
+                if (ripper != null) {
+                    ripper.stop();
+                    ripButton.setVisible(true);
+                    stopButton.setVisible(false);
+                    ripTextfield.setEnabled(true);
+                    statusProgress.setValue(0);
+                    statusProgress.setVisible(false);
+                    mainFrame.pack();
+                    statusProgress.setValue(0);
+                    status("Ripping interrupted");
+                    appendLog("Ripper interrupted", Color.RED);
+                }
+            }
+        });
         optionLog.addActionListener(new ActionListener() {
             @Override
             public void actionPerformed(ActionEvent event) {
@@ -574,7 +597,8 @@ public class MainWindow implements Runnable, RipStatusHandler {
             error("Given URL is not valid, expecting http://website.com/page/...");
             return null;
         }
-        ripButton.setEnabled(false);
+        ripButton.setVisible(false);
+        stopButton.setVisible(true);
         ripTextfield.setEnabled(false);
         statusProgress.setValue(100);
         openButton.setVisible(false);
@@ -612,7 +636,8 @@ public class MainWindow implements Runnable, RipStatusHandler {
                 error("Unable to rip this URL: " + e.getMessage());
             }
         }
-        ripButton.setEnabled(true);
+        ripButton.setVisible(true);
+        stopButton.setVisible(false);
         ripTextfield.setEnabled(true);
         statusProgress.setValue(0);
         mainFrame.pack();
@@ -640,6 +665,9 @@ public class MainWindow implements Runnable, RipStatusHandler {
     }
     
     private void handleEvent(StatusEvent evt) {
+        if (ripper.isStopped()) {
+            return;
+        }
         RipStatusMessage msg = evt.msg;
 
         int completedPercent = evt.ripper.getCompletionPercentage();
@@ -667,7 +695,8 @@ public class MainWindow implements Runnable, RipStatusHandler {
                 historyListModel.addElement(ripTextfield.getText());
             }
             saveHistory();
-            ripButton.setEnabled(true);
+            ripButton.setVisible(true);
+            stopButton.setVisible(false);
             ripTextfield.setEnabled(true);
             statusProgress.setValue(0);
             statusProgress.setVisible(false);
@@ -678,9 +707,7 @@ public class MainWindow implements Runnable, RipStatusHandler {
             try {
                 Image folderIcon = ImageIO.read(getClass().getClassLoader().getResource("folder.png"));
                 openButton.setIcon(new ImageIcon(folderIcon));
-            } catch (Exception e) {
+            } catch (Exception e) { }
-                logger.error("Error while setting folder icon", e);
-            }
             appendLog( "Rip complete, saved to " + prettyFile, Color.GREEN);
             openButton.setActionCommand(f.toString());
             openButton.addActionListener(new ActionListener() {