From 8077bf898a506b975b46b4d8188899747e57533f Mon Sep 17 00:00:00 2001
From: Phillipus <p.beauvoir@dadabeatnik.com>
Date: Fri, 27 Sep 2024 17:44:40 +0100
Subject: [PATCH] Add workaround for Mac Text control cancel icon not working
 with single click

- Clear text on single mouse click
---
 .../com/archimatetool/editor/ui/UIUtils.java  | 34 +++++++++++++++++++
 .../views/tree/search/SearchWidget.java       |  3 ++
 2 files changed, 37 insertions(+)

diff --git a/com.archimatetool.editor/src/com/archimatetool/editor/ui/UIUtils.java b/com.archimatetool.editor/src/com/archimatetool/editor/ui/UIUtils.java
index f4ad79a16..0c97c3f80 100644
--- a/com.archimatetool.editor/src/com/archimatetool/editor/ui/UIUtils.java
+++ b/com.archimatetool.editor/src/com/archimatetool/editor/ui/UIUtils.java
@@ -6,7 +6,10 @@
 package com.archimatetool.editor.ui;
 
 import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.MouseAdapter;
+import org.eclipse.swt.events.MouseEvent;
 import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Rectangle;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Text;
@@ -117,6 +120,37 @@ public static void applyMacUndoBugFilter(Control control) {
             });
         }
     }
+    
+    /**
+     * On Mac single-click on the Cancel icon in a text control doesn't work.
+     * See https://bugs.eclipse.org/bugs/show_bug.cgi?id=551405
+     * @param text The Text control
+     */
+    public static void applyMacCancelIconListener(Text text) {
+        if(PlatformUtils.isMac() && (text.getStyle() & SWT.ICON_CANCEL) != 0) {
+            text.addMouseListener(new MouseAdapter() {
+                boolean mouseDownWasClickedOnCancelIcon;
+                
+                @Override
+                public void mouseDown(MouseEvent e) {
+                    mouseDownWasClickedOnCancelIcon = isCancelIconClicked(e);
+                }
+                
+                @Override
+                public void mouseUp(MouseEvent e) {
+                    if(mouseDownWasClickedOnCancelIcon && isCancelIconClicked(e)) {
+                        text.setText("");
+                    }
+                };
+                
+                private boolean isCancelIconClicked(MouseEvent e) {
+                    Rectangle bounds = text.getBounds();
+                    return !text.getText().isEmpty() && e.x > bounds.width - 25 && e.x < bounds.width - 5
+                            && e.y > 0 && e.y < bounds.height;
+                }
+            });
+        }
+    }
 
     /**
      * Apply a traverse listener to a Multi-line text control such that tabbing or pressing Ctrl + Enter
diff --git a/com.archimatetool.editor/src/com/archimatetool/editor/views/tree/search/SearchWidget.java b/com.archimatetool.editor/src/com/archimatetool/editor/views/tree/search/SearchWidget.java
index 5f5bbb57b..836f6b053 100644
--- a/com.archimatetool.editor/src/com/archimatetool/editor/views/tree/search/SearchWidget.java
+++ b/com.archimatetool.editor/src/com/archimatetool/editor/views/tree/search/SearchWidget.java
@@ -152,6 +152,9 @@ private void createSearchTextWidget() {
         fSearchText = UIUtils.createSingleTextControl(this, SWT.SEARCH | SWT.ICON_CANCEL | SWT.ICON_SEARCH, false);
         fSearchText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
         
+        // Bug on Mac, single-click doesn't work on the cancel icon
+        UIUtils.applyMacCancelIconListener(fSearchText);
+        
         // Mac bug workaround
         UIUtils.applyMacUndoBugFilter(fSearchText);