screenshots added for wiki

Author: Dansoftowner

screenshots/additional/secondaryToolbarToggle.jpg

@@ -1,7 +1,8 @@
 package com.dansoftware.pdfdisplayer;
 
 import javafx.application.Platform;
-import javafx.collections.ObservableList;
+import javafx.beans.value.ChangeListener;
+import javafx.beans.value.ObservableValue;
 import javafx.concurrent.Worker;
 import javafx.scene.Parent;
 import javafx.scene.web.WebEngine;
@@ -10,7 +11,6 @@
 
 import java.io.*;
 import java.net.URL;
-import java.nio.file.Files;
 import java.util.Base64;
 
 public class PDFDisplayer {
@@ -20,9 +20,11 @@ public class PDFDisplayer {
     private ProcessListener processListener;
 
     private WebView nodeValue;
+    private String loadScript;
     private String toExecuteWhenPDFJSLoaded = "";
 
 
+
     public PDFDisplayer() {
     }
 
@@ -79,7 +81,7 @@ public void displayPdf(InputStream inputStream) throws IOException {
                 try {
                     nodeValue.getEngine().executeScript(js);
                 } catch (Exception ex) {
-                    if (!pdfJsLoaded) toExecuteWhenPDFJSLoaded += js;
+                    if (!pdfJsLoaded) loadScript = js;
                 }
             });
 
@@ -89,27 +91,52 @@ public void displayPdf(InputStream inputStream) throws IOException {
 
     }
 
-    @SuppressWarnings("all")
+
     public void setSecondaryToolbarToggleVisibility(boolean value) {
-        String css;
+        setVisibilityOf("secondaryToolbarToggle", value);
+
+        String js;
         if (value){
+            js = new StringBuilder()
+                    .append("var element = document.getElementsByClassName('verticalToolbarSeparator')[0];")
+                    .append("element.style.display = 'inherit';")
+                    .append("element.style.visibility = 'inherit';")
+                    .toString();
+        } else {
+            js = new StringBuilder()
+                    .append("var element = document.getElementsByClassName('verticalToolbarSeparator')[0];")
+                    .append("element.style.display = 'none';")
+                    .append("element.style.visibility = 'hidden';")
+                    .toString();
+        }
+
+        try {
+            nodeValue.getEngine().executeScript(js);
+        } catch (Exception ex){
+            if (!pdfJsLoaded) toExecuteWhenPDFJSLoaded += js;
+        }
+    }
+
+    @SuppressWarnings("all")
+    public void setVisibilityOf(String id, boolean value){
+        String css;
+        if (value) {
             css = new StringBuilder()
-                    .append("document.getElementById('secondaryToolbarToggle').style.display = 'inherit';")
-                    .append("document.getElementById('secondaryToolbarToggle').style.visibility = 'inherit';")
+                    .append("document.getElementById('" + id + "').style.display = 'inherit';")
+                    .append("document.getElementById('" + id + "').style.visibility = 'inherit';")
                     .toString();
         } else {
             css = new StringBuilder()
-                    .append("document.getElementById('secondaryToolbarToggle').style.display = 'none';")
-                    .append("document.getElementById('secondaryToolbarToggle').style.visibility = 'hidden';")
+                    .append("document.getElementById('" + id + "').style.display = 'none';")
+                    .append("document.getElementById('" + id + "').style.visibility = 'hidden';")
                     .toString();
         }
 
         try {
             nodeValue.getEngine().executeScript(css);
-        } catch (Exception ex){
+        } catch (Exception ex) {
             if (!pdfJsLoaded) this.toExecuteWhenPDFJSLoaded += css;
         }
-
     }
 
     public void navigateByPage(int pageNum) {
@@ -125,53 +152,64 @@ public void setProcessListener(ProcessListener listener) {
         this.processListener = listener;
     }
 
+    public void executeScript(String js) {
+        try {
+            this.nodeValue.getEngine().executeScript(js);
+        } catch (Exception ex) {
+            if (!pdfJsLoaded) toExecuteWhenPDFJSLoaded += String.format("%s;", js);
+        }
+    }
+
     private void updateProcessListener(boolean val) {
         if (processListener != null && pdfJsLoaded) processListener.listen(val);
     }
 
     private WebView createWebView() {
         WebView webView = new WebView();
+        webView.setContextMenuEnabled(false);
+        webView.getStylesheets().add("/com/dansoftware/pdfdisplayer/base.css");
+
         WebEngine engine = webView.getEngine();
         String url = getClass().getResource("/pdfjs/web/viewer.html").toExternalForm();
 
         engine.setJavaScriptEnabled(true);
         engine.load(url);
 
         if (processListener != null) processListener.listen(false);
+
+
         engine.getLoadWorker()
                 .stateProperty()
-                .addListener((observable, oldValue, newValue) -> {
-                    JSObject window = (JSObject) engine.executeScript("window");
-                    window.setMember("java", new JSLogListener());
-                    engine.executeScript("console.log = function(message){ try {java.log(message);} catch(e) {} };");
-
-                    if (newValue == Worker.State.SUCCEEDED) {
-                        try {
-                            if (processListener != null) processListener.listen(pdfJsLoaded = true);
-
-                            engine.executeScript(toExecuteWhenPDFJSLoaded);
-                            toExecuteWhenPDFJSLoaded = null;
-                        } catch (Exception e) {
-                            throw new RuntimeException(e);
-                        }
-                    }
-                });
+                .addListener(
+                        new ChangeListener<Worker.State>() {
+                            @Override
+                            public void changed(ObservableValue<? extends Worker.State> observable, Worker.State oldValue, Worker.State newValue) {
+                                JSObject window = (JSObject) engine.executeScript("window");
+                                window.setMember("java", new JSLogListener());
+                                engine.executeScript("console.log = function(message){ try {java.log(message);} catch(e) {} };");
+
+                                if (newValue == Worker.State.SUCCEEDED) {
+                                    try {
+                                        if (processListener != null) processListener.listen(pdfJsLoaded = true);
+
+                                        if (loadScript != null)
+                                            engine.executeScript(loadScript);
+
+                                        engine.executeScript(toExecuteWhenPDFJSLoaded);
+                                        toExecuteWhenPDFJSLoaded = null;
+                                        observable.removeListener(this);
+                                    } catch (Exception e) {
+                                        throw new RuntimeException(e);
+                                    }
+                                }
+                            }
+                        });
 
         return webView;
 
     }
 
-    public ObservableList<String> getStylesSheets(){
-        return nodeValue.getStylesheets();
-    }
 
-    public void executeScript(String js) {
-        try {
-            this.nodeValue.getEngine().executeScript(js);
-        } catch (Exception ex) {
-            if (!pdfJsLoaded) toExecuteWhenPDFJSLoaded += String.format("%s;", js);
-        }
-    }
 
     public Parent toNode() {
         if (nodeValue == null)

screenshots/additional/secondaryToolbarToggleUnvisible.jpg

@@ -0,0 +1,17 @@
+/*Styles of the scroll-bar*/
+.scroll-bar:horizontal,
+.scroll-bar:vertical {
+
+   -fx-background-color: #474a48;
+}
+
+.scroll-bar:horizontal .thumb,
+.scroll-bar:vertical .thumb {
+    -fx-background-color: #9d9b9b;
+    -fx-background-radius: 0em;
+}
+
+.scroll-bar .corner {
+ -fx-background-color: #dbdbdb;
+ -fx-disabled: true;
+}

screenshots/additional/sidebarToggle.jpg

@@ -60,7 +60,7 @@ else if (!alertStage.isShowing())
         }).start();
 
         displayer.setSecondaryToolbarToggleVisibility(true);
-        displayer.getStylesSheets().add("style.css");
+        displayer.toNode().getStylesheets().add("style.css");
 
         displayer.executeScript("document.getElementById('secondaryToolbarToggle').style.backgroundColor = 'blue';");
 

screenshots/additional/sidebarToggleUnvisible.jpg

@@ -0,0 +1,35 @@
+import com.dansoftware.pdfdisplayer.JSLogListener;
+import com.dansoftware.pdfdisplayer.PDFDisplayer;
+import javafx.application.Application;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.layout.StackPane;
+import javafx.scene.layout.VBox;
+import javafx.stage.Stage;
+
+import java.net.URL;
+
+public class SimpleDemo extends Application {
+    private boolean visible;
+    @Override
+    public void start(Stage primaryStage) throws Exception {
+
+        PDFDisplayer displayer = new PDFDisplayer(new URL("https://www.tutorialspoint.com/javafx/javafx_tutorial.pdf"));
+        displayer.setSecondaryToolbarToggleVisibility(visible);
+        displayer.setVisibilityOf("sidebarToggle", false);
+
+        Button btn = new Button("Hide/Show");
+        btn.setOnAction(event -> {
+            displayer.setSecondaryToolbarToggleVisibility(visible = !visible);
+        });
+
+        JSLogListener.setOutputStream(System.err);
+
+        primaryStage.setScene(new Scene(new VBox(displayer.toNode(), btn)));
+        primaryStage.show();
+    }
+
+    public static void main(String[] args) {
+        launch(args);
+    }
+}

src/main/java/com/dansoftware/pdfdisplayer/PDFDisplayer.java

@@ -1,13 +1 @@
 
-/*Styles of the scroll-bar*/
-.scroll-bar:horizontal,
-.scroll-bar:vertical {
-
-   -fx-background-color: #474a48;
-}
-
-.scroll-bar:horizontal .thumb,
-.scroll-bar:vertical .thumb {
-    -fx-background-color: #9d9b9b;
-    -fx-background-radius: 0em;
-}