Changeset 548 for trunk/src/org/expeditee/items/widgets

Timestamp:

11/27/13 16:57:30 (11 years ago)

Author:

csl14

Message:

added back and forward functionality for JfxBrowser

File:

• trunk/src/org/expeditee/items/widgets/JfxBrowser.java (modified) (5 diffs)

trunk/src/org/expeditee/items/widgets/JfxBrowser.java

@@ -10 +10 @@
 import java.io.File;
 import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.net.URL;
@@ -34 +35 @@
  */
 public class JfxBrowser extends DataFrameWidget {
+        
+        private static final String BACK = "back";
+        private static final String FORWARD = "forward";
+        private static final String REFRESH = "refresh";
+        
         private WebBrowserPanel _browser;
 
@@ -56 +62 @@
         static Method WebEngineGetLocation;
         static Method WebEngineGetLoadWorker;
+        static Method WebEngineGetHistory;
+        static Method WebEngineReload;
+
+        static Class WebHistory;
+        static Method WebHistoryGo;
 
         static Class Worker;
@@ -105 +116 @@
                         WebEngineGetLocation = WebEngine.getMethod("getLocation");
                         WebEngineGetLoadWorker = WebEngine.getMethod("getLoadWorker");
+                        WebEngineGetHistory = WebEngine.getMethod("getHistory");
+                        WebEngineReload = WebEngine.getMethod("reload");
+                        
+                        WebHistory = classLoader.loadClass("javafx.scene.web.WebHistory");
+                        WebHistoryGo = WebHistory.getMethod("go", int.class);
 
                         Worker = classLoader.loadClass("javafx.concurrent.Worker");
@@ -332 +348 @@
         }
 
+        /**
+         * Navigates JfxBrowser back through history. If end of history reached the user is notified via the MessageBay.
+         * Max size of history is 100 by default.
+         */
+        public void navigateBack() {
+                try {
+                        WebHistoryGo.invoke(WebEngineGetHistory.invoke(WebViewGetEngine.invoke(this._browser.webview)), -1);
+                        FreeItems.getInstance().clear();
+                } catch (InvocationTargetException e) {
+                        MessageBay.displayMessage("End of History");
+                } catch (Exception e) {
+                        e.printStackTrace();
+                }
+        }
+        
+        /**
+         * Navigates JfxBrowser forward through history. If end of history reached the user is notified via the MessageBay.
+         * Max size of history is 100 by default.
+         */
+        public void navigateForward() {
+                try {
+                        WebHistoryGo.invoke(WebEngineGetHistory.invoke(WebViewGetEngine.invoke(this._browser.webview)), 1);
+                        FreeItems.getInstance().clear();
+                } catch (InvocationTargetException e) {
+                        MessageBay.displayMessage("End of History");
+                } catch (Exception e) {
+                        e.printStackTrace();
+                }
+        }
+        
+        /**
+         * Refreshes page in webview.
+         */
+        public void refresh() {
+                try {
+                        //WebEngineReload.invoke(WebViewGetEngine.invoke(this._browser.webview));
+                        MessageBay.displayMessage("Page Refreshed");
+                        FreeItems.getInstance().clear();
+                } catch (Exception e) {
+                        e.printStackTrace();
+                }
+        }
+        
         @Override
         public boolean ItemsLeftClickDropped() {
                 Text carried = null;
-                if ((carried = FreeItems.getTextAttachedToCursor()) != null) {
+                if ((carried = FreeItems.getTextAttachedToCursor()) == null) {
+                        return false;
+                }
+                
+                if(carried.getText().toLowerCase().equals(BACK)) {
+                        navigateBack();
+                } else if(carried.getText().toLowerCase().equals(FORWARD)) {
+                        navigateForward();
+                } else if(carried.getText().toLowerCase().equals(REFRESH)) {
+                        refresh();
+                } else {
                         String text = carried.getText().trim();
                         this.navigate(text);
                         FreeItems.getInstance().clear();
-                        return true;
-                }
-                return false;
+                }
+                
+                return true;
         }