Support link click actions within Q chat (#44)

This PR handles the link click notifications, which includes aws/chat/linkClick, aws/chat/infoLinkClick and aws/chat/sourceLinkClick. We are showing a confirmation message box before opening links that are present in Chat UI.

Author: shruti0085

plugin/src/software/aws/toolkits/eclipse/amazonq/chat/models/InfoLinkClickParams.java

@@ -0,0 +1,40 @@
+// Copyright 2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+
+package software.aws.toolkits.eclipse.amazonq.chat.models;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class InfoLinkClickParams {
+    @JsonProperty("tabId")
+    private String tabId;
+
+    @JsonProperty("link")
+    private String link;
+
+    @JsonProperty("eventId")
+    private String eventId;
+
+    public final String getTabId() {
+        return tabId;
+    }
+
+    public final void setTabId(final String tabId) {
+        this.tabId = tabId;
+    }
+
+    public final String getLink() {
+        return link;
+    }
+
+    public final void setLink(final String link) {
+        this.link = link;
+    }
+
+    public final String getEventId() {
+        return eventId;
+    }
+
+    public final void setEventId(final String eventId) {
+        this.eventId = eventId;
+    }
+}

plugin/src/software/aws/toolkits/eclipse/amazonq/util/PluginUtils.java

@@ -12,7 +12,9 @@
 import org.eclipse.core.runtime.FileLocator;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.core.runtime.Platform;
+import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.widgets.Display;
 import org.eclipse.ui.PlatformUI;
 import org.osgi.framework.Bundle;
 import org.osgi.framework.FrameworkUtil;
@@ -98,4 +100,19 @@ public static void openWebpage(final String url) {
             PluginLogger.warn("Error while trying to open an external web page:", ex);
         }
     }
+
+    public static boolean showConfirmDialog(final String title, final String message) {
+        final boolean[] result = new boolean[] {false};
+        try {
+            Display.getDefault().syncExec(new Runnable() {
+                @Override
+                public void run() {
+                    result[0] = MessageDialog.openConfirm(Display.getDefault().getActiveShell(), title, message);
+                }
+            });
+        } catch (Exception ex) {
+            PluginLogger.error(ex.getMessage());
+        }
+        return result[0];
+    }
 }

plugin/src/software/aws/toolkits/eclipse/amazonq/views/AmazonQChatViewActionHandler.java

@@ -14,9 +14,11 @@
 import software.aws.toolkits.eclipse.amazonq.chat.models.ChatResult;
 import software.aws.toolkits.eclipse.amazonq.chat.models.ChatUIInboundCommand;
 import software.aws.toolkits.eclipse.amazonq.chat.models.ChatUIInboundCommandName;
+import software.aws.toolkits.eclipse.amazonq.chat.models.InfoLinkClickParams;
 import software.aws.toolkits.eclipse.amazonq.exception.AmazonQPluginException;
 import software.aws.toolkits.eclipse.amazonq.util.JsonHandler;
 import software.aws.toolkits.eclipse.amazonq.util.PluginLogger;
+import software.aws.toolkits.eclipse.amazonq.util.PluginUtils;
 import software.aws.toolkits.eclipse.amazonq.util.ProgressNotficationUtils;
 import software.aws.toolkits.eclipse.amazonq.views.model.Command;
 import software.aws.toolkits.eclipse.amazonq.views.model.ParsedCommand;
@@ -54,6 +56,16 @@ public final void handleCommand(final ParsedCommand parsedCommand, final Browser
                         chatCommunicationManager.sendMessageToChatUI(browser, chatUIInboundCommand);
                     });
                 break;
+            case CHAT_INFO_LINK_CLICK:
+            case CHAT_LINK_CLICK:
+            case CHAT_SOURCE_LINK_CLICK:
+                InfoLinkClickParams infoLinkClickParams = jsonHandler.convertObject(params, InfoLinkClickParams.class);
+                var link = infoLinkClickParams.getLink();
+                if (link == null || link.isEmpty()) {
+                    throw new IllegalArgumentException("Link parameter cannot be null or empty");
+                }
+                handleExternalLinkClick(link);
+                break;
             case CHAT_READY:
                 chatCommunicationManager.sendMessageToChatServer(browser, command, params);
                 break;
@@ -67,6 +79,16 @@ public final void handleCommand(final ParsedCommand parsedCommand, final Browser
         }
     }
 
+    private void handleExternalLinkClick(final String link) {
+        try {
+            var result = PluginUtils.showConfirmDialog("Amazon Q", "Do you want to open the external website?\n\n" + link);
+            if (result) {
+                PluginUtils.openWebpage(link);
+            }
+        } catch (Exception ex) {
+            PluginLogger.error("Failed to open url in browser", ex);
+        }
+    }
 
     /*
      * Handles chat progress notifications from the Amazon Q LSP server. Sends a partial chat prompt message to the webview.

plugin/src/software/aws/toolkits/eclipse/amazonq/views/model/Command.java

@@ -11,6 +11,9 @@ public enum Command {
     CHAT_READY("aws/chat/ready"),
     CHAT_TAB_ADD("aws/chat/tabAdd"),
     CHAT_SEND_PROMPT("aws/chat/sendChatPrompt"),
+    CHAT_LINK_CLICK("aws/chat/linkClick"),
+    CHAT_INFO_LINK_CLICK("aws/chat/infoLinkClick"),
+    CHAT_SOURCE_LINK_CLICK("aws/chat/sourceLinkClick"),
     TELEMETRY_EVENT("telemetry/event"),
 
     // Auth