Removed bundled offline docs

The offline documentation is hard to update and gets outdated very
quickly.

Fix #8860

app/src/processing/app/Base.java

@@ -2169,60 +2169,6 @@ public class Base {
   // .................................................................
 
 
-  static public void showReference(String filename) {
-    showReference("reference/www.arduino.cc/en", filename);
-  }
-
-  static public void showReference(String prefix, String filename) {
-    File referenceFolder = getContentFile(prefix);
-    File referenceFile = new File(referenceFolder, filename);
-    if (!referenceFile.exists())
-      referenceFile = new File(referenceFolder, filename + ".html");
-
-    if(referenceFile.exists()){
-      openURL(referenceFile.getAbsolutePath());
-    }else{
-      showWarning(tr("Problem Opening URL"), format(tr("Could not open the URL\n{0}"), referenceFile), null);
-    }
-  }
-
-  public static void showEdisonGettingStarted() {
-    showReference("reference/Edison_help_files", "ArduinoIDE_guide_edison");
-  }
-
-  static public void showArduinoGettingStarted() {
-    if (OSUtils.isMacOS()) {
-      showReference("Guide/MacOSX");
-    } else if (OSUtils.isWindows()) {
-      showReference("Guide/Windows");
-    } else {
-      openURL("http://www.arduino.cc/playground/Learning/Linux");
-    }
-  }
-
-  static public void showReference() {
-    showReference("Reference/HomePage");
-  }
-
-
-  static public void showEnvironment() {
-    showReference("Guide/Environment");
-  }
-
-
-  static public void showTroubleshooting() {
-    showReference("Guide/Troubleshooting");
-  }
-
-
-  static public void showFAQ() {
-    showReference("Main/FAQ");
-  }
-
-
-  // .................................................................
-
-
   /**
    * "No cookie for you" type messages. Nothing fatal or all that
    * much of a bummer, but something to notify the user about.

app/src/processing/app/Editor.java

@@ -46,9 +46,11 @@ import java.io.File;
 import java.io.FileFilter;
 import java.io.FilenameFilter;
 import java.io.IOException;
+import java.io.UnsupportedEncodingException;
 import java.net.ConnectException;
 import java.net.URL;
 import java.net.URLClassLoader;
+import java.net.URLEncoder;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
@@ -1134,29 +1136,29 @@ public class Editor extends JFrame implements RunnerListener {
     menu.setMnemonic(KeyEvent.VK_H);
 
     JMenuItem item = new JMenuItem(tr("Getting Started"));
-    item.addActionListener(event -> Base.showArduinoGettingStarted());
+    item.addActionListener(event -> Base.openURL("https://www.arduino.cc/en/Guide"));
     menu.add(item);
 
     item = new JMenuItem(tr("Environment"));
-    item.addActionListener(event -> Base.showEnvironment());
+    item.addActionListener(event -> Base.openURL("https://www.arduino.cc/en/Guide/Environment"));
     menu.add(item);
 
     item = new JMenuItem(tr("Troubleshooting"));
-    item.addActionListener(event -> Base.showTroubleshooting());
+    item.addActionListener(event -> Base.openURL("https://support.arduino.cc/hc/en-us"));
     menu.add(item);
 
     item = new JMenuItem(tr("Reference"));
-    item.addActionListener(event -> Base.showReference());
+    item.addActionListener(event -> Base.openURL("https://www.arduino.cc/reference/en/"));
     menu.add(item);
 
     menu.addSeparator();
 
     item = newJMenuItemShift(tr("Find in Reference"), 'F');
-    item.addActionListener(event -> handleFindReference(event));
+    item.addActionListener(event -> handleFindReference(getCurrentTab().getCurrentKeyword()));
     menu.add(item);
 
     item = new JMenuItem(tr("Frequently Asked Questions"));
-    item.addActionListener(event -> Base.showFAQ());
+    item.addActionListener(event -> Base.openURL("https://support.arduino.cc/hc/en-us"));
     menu.add(item);
 
     item = new JMenuItem(tr("Visit Arduino.cc"));
@@ -1553,20 +1555,25 @@ public class Editor extends JFrame implements RunnerListener {
     tabs.remove(index);
   }
 
+
   // . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 
-  void handleFindReference(ActionEvent e) {
-    String text = getCurrentTab().getCurrentKeyword();
 
+  void handleFindReference(String text) {
     String referenceFile = base.getPdeKeywords().getReference(text);
+    String q;
     if (referenceFile == null) {
-      statusNotice(I18n.format(tr("No reference available for \"{0}\""), text));
+      q = text;
+    } else if (referenceFile.startsWith("Serial_")) {
+      q = referenceFile.substring(7);
     } else {
-      if (referenceFile.startsWith("Serial_")) {
-        Base.showReference("Serial/" + referenceFile.substring("Serial_".length()));
-      } else {
-        Base.showReference("Reference/" + referenceFile);
-      }
+      q = referenceFile;
+    }
+    try {
+      Base.openURL("https://www.arduino.cc/search?tab=&q="
+                   + URLEncoder.encode(q, "UTF-8"));
+    } catch (UnsupportedEncodingException e) {
+      e.printStackTrace();
     }
   }
 

app/src/processing/app/EditorTab.java

@@ -247,7 +247,7 @@ public class EditorTab extends JPanel implements SketchFile.TextStorage {
     menu.add(item);
 
     final JMenuItem referenceItem = new JMenuItem(tr("Find in Reference"));
-    referenceItem.addActionListener(editor::handleFindReference);
+    referenceItem.addActionListener(ev -> editor.handleFindReference(getCurrentKeyword()));
     menu.add(referenceItem);  
 
     final JMenuItem openURLItem = new JMenuItem(tr("Open URL"));

build/build.xml

@@ -214,10 +214,6 @@
 
     <antcall target="assemble-examples" />
 
-    <mkdir dir="${target.path}/reference"/>
-
-    <antcall target="assemble-docs" />
-
     <!-- Write the revision file! -->
     <echo file="${target.path}/lib/version.txt" message="${version}" />
 
@@ -254,16 +250,6 @@
     </copy>
   </target>
 
-  <target name="assemble-docs" unless="no_docs">
-      <!-- Unzip documentation -->
-      <antcall target="unzip">
-        <param name="archive_file" value="shared/reference-1.6.6-3.zip" />
-        <param name="archive_url" value="https://downloads.arduino.cc/reference-1.6.6-3.zip" />
-        <param name="final_folder" value="${target.path}/reference/www.arduino.cc" />
-        <param name="dest_folder" value="${target.path}/reference/" />
-      </antcall>
-  </target>
-
   <!-- copy library folder -->
   <target name="assemble-libraries" unless="light_bundle">
     <download-library name="Ethernet" version="2.0.0"/>

build/shared/reference-1.6.6-3.zip.sha

@@ -1 +0,0 @@
-cc4f36c9783772f07c9a1bb4a60d7be3b504c69e

build/shared/revisions.txt

@@ -1,5 +1,8 @@
 ARDUINO 1.8.15 Not yet release
 
+[ide]
+* Removed the very outdated off-line documentation.
+
 [wifi-firmware]
 * Added latest firmwares (up to version 1.4.8) for NINA-based boards