From f3d521d82041f7683219eb304231690145cc342f Mon Sep 17 00:00:00 2001
From: Martino Facchin <m.facchin@arduino.cc>
Date: Thu, 14 Feb 2019 15:34:17 +0100
Subject: [PATCH 1/2] [Lib Manager] Avoid updating the UI at every keystroke

Fixes #8282
---
 .../contributions/ui/FilterJTextField.java    | 24 +++++--------------
 .../contributions/ui/InstallerJDialog.java    |  1 +
 2 files changed, 7 insertions(+), 18 deletions(-)

diff --git a/app/src/cc/arduino/contributions/ui/FilterJTextField.java b/app/src/cc/arduino/contributions/ui/FilterJTextField.java
index 9dc7fd8d6b5..29b9be7558c 100644
--- a/app/src/cc/arduino/contributions/ui/FilterJTextField.java
+++ b/app/src/cc/arduino/contributions/ui/FilterJTextField.java
@@ -33,6 +33,8 @@
 import javax.swing.event.DocumentEvent;
 import javax.swing.event.DocumentListener;
 import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
 import java.awt.event.FocusEvent;
 import java.awt.event.FocusListener;
 
@@ -66,35 +68,21 @@ public void focusGained(FocusEvent focusEvent) {
       }
     });
 
-    getDocument().addDocumentListener(new DocumentListener() {
-      public void removeUpdate(DocumentEvent e) {
-        applyFilter();
-      }
-
-      public void insertUpdate(DocumentEvent e) {
-        applyFilter();
-      }
-
-      public void changedUpdate(DocumentEvent e) {
+    addActionListener(new ActionListener() {
+      @Override
+      public void actionPerformed(ActionEvent e) {
         applyFilter();
       }
     });
   }
 
-  private String lastFilter = "";
-
-  private void applyFilter() {
+  public void applyFilter() {
     String filter = showingHint ? "" : getText();
     filter = filter.toLowerCase();
 
     // Replace anything but 0-9, a-z, or : with a space
     filter = filter.replaceAll("[^\\x30-\\x39^\\x61-\\x7a^\\x3a]", " ");
 
-    // Fire event only if the filter is changed
-    if (filter.equals(lastFilter))
-      return;
-
-    lastFilter = filter;
     onFilter(filter.split(" "));
   }
 
diff --git a/app/src/cc/arduino/contributions/ui/InstallerJDialog.java b/app/src/cc/arduino/contributions/ui/InstallerJDialog.java
index 3dd864134c4..466bd0dfafc 100644
--- a/app/src/cc/arduino/contributions/ui/InstallerJDialog.java
+++ b/app/src/cc/arduino/contributions/ui/InstallerJDialog.java
@@ -320,6 +320,7 @@ public void setFilterText(String filterText) {
       listener.focusGained(new FocusEvent(filterField, FocusEvent.FOCUS_GAINED));
     }
     filterField.setText(filterText);
+    filterField.applyFilter();
   }
 
   public void selectDropdownItemByClassName(String dropdownItem) {

From 8f5f4f594d679408863933ecd6bbdcec03c900dc Mon Sep 17 00:00:00 2001
From: Martino Facchin <m.facchin@arduino.cc>
Date: Fri, 15 Feb 2019 10:44:56 +0100
Subject: [PATCH 2/2] [LibManager] Restore "search on type" with 1 second grace
 period

---
 .../contributions/ui/FilterJTextField.java    | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/app/src/cc/arduino/contributions/ui/FilterJTextField.java b/app/src/cc/arduino/contributions/ui/FilterJTextField.java
index 29b9be7558c..90759449397 100644
--- a/app/src/cc/arduino/contributions/ui/FilterJTextField.java
+++ b/app/src/cc/arduino/contributions/ui/FilterJTextField.java
@@ -43,6 +43,7 @@ public class FilterJTextField extends JTextField {
   private final String filterHint;
 
   private boolean showingHint;
+  private Timer timer;
 
   public FilterJTextField(String hint) {
     super(hint);
@@ -50,6 +51,13 @@ public FilterJTextField(String hint) {
 
     showingHint = true;
     updateStyle();
+    timer = new Timer(1000, new ActionListener() {
+      @Override
+      public void actionPerformed(ActionEvent e) {
+        applyFilter();
+        timer.stop();
+      }
+    });
 
     addFocusListener(new FocusListener() {
       public void focusLost(FocusEvent focusEvent) {
@@ -68,14 +76,38 @@ public void focusGained(FocusEvent focusEvent) {
       }
     });
 
+    getDocument().addDocumentListener(new DocumentListener() {
+      public void removeUpdate(DocumentEvent e) {
+        spawnTimer();
+      }
+
+      public void insertUpdate(DocumentEvent e) {
+        spawnTimer();
+      }
+
+      public void changedUpdate(DocumentEvent e) {
+
+      }
+    });
+
     addActionListener(new ActionListener() {
       @Override
       public void actionPerformed(ActionEvent e) {
+        if (timer.isRunning()) {
+          timer.stop();
+        }
         applyFilter();
       }
     });
   }
 
+  private void spawnTimer() {
+    if (timer.isRunning()) {
+      timer.stop();
+    }
+    timer.start();
+  }
+
   public void applyFilter() {
     String filter = showingHint ? "" : getText();
     filter = filter.toLowerCase();