Bug 513034 - [generic editor] Provide a way for generic editor to use

different icon based on content-type

Change-Id: I669c1a8df2918cdecea5e12d71059e34cb2f1c3f
Signed-off-by: Lakshminarayana Nekkanti <narayana.nekkanti@gmail.com>

6 files changed, 121 insertions, 2 deletions

diff --git a/org.eclipse.ui.genericeditor.tests/build.properties b/org.eclipse.ui.genericeditor.tests/build.properties
index ed380ef0273..552c2424f7c 100644
--- a/org.eclipse.ui.genericeditor.tests/build.properties
+++ b/org.eclipse.ui.genericeditor.tests/build.properties
@@ -17,7 +17,8 @@ bin.includes = plugin.properties,\
                about.html,\
                .,\
                META-INF/,\
-               plugin.xml
+               plugin.xml,\
+               icons/
 
 src.includes = about.html
 
diff --git a/org.eclipse.ui.genericeditor.tests/icons/newfile_wiz.png b/org.eclipse.ui.genericeditor.tests/icons/newfile_wiz.png
new file mode 100644
index 00000000000..cb428d360f0
--- /dev/null
+++ b/org.eclipse.ui.genericeditor.tests/icons/newfile_wiz.png
diff --git a/org.eclipse.ui.genericeditor.tests/icons/newfolder_wiz.png b/org.eclipse.ui.genericeditor.tests/icons/newfolder_wiz.png
new file mode 100644
index 00000000000..6fddda8953f
--- /dev/null
+++ b/org.eclipse.ui.genericeditor.tests/icons/newfolder_wiz.png
diff --git a/org.eclipse.ui.genericeditor.tests/plugin.xml b/org.eclipse.ui.genericeditor.tests/plugin.xml
index e107937b3a6..5d45eb65a30 100644
--- a/org.eclipse.ui.genericeditor.tests/plugin.xml
+++ b/org.eclipse.ui.genericeditor.tests/plugin.xml
@@ -263,4 +263,16 @@
 				type="org.eclipse.ui.internal.genericeditor.ExtensionBasedTextEditor">
     	</propertyTester>
 	</extension>
+    <extension
+          point="org.eclipse.ui.genericeditor.icons">
+        <icon
+             contentTypeId="org.eclipse.ui.genericeditor.tests.content-type"
+             icon="icons/newfile_wiz.png"/>
+        <icon
+             contentTypeId="org.eclipse.ui.genericeditor.tests.specialized-content-type"
+             icon="icons/newfolder_wiz.png"/>
+        <icon
+             contentTypeId="org.eclipse.ui.genericeditor.tests.sub-specialized-content-type"
+             icon="platform:/plugin/org.eclipse.ui.ide/icons/full/etool16/newprj_wiz.png"/>
+    </extension>
 </plugin>
diff --git a/org.eclipse.ui.genericeditor.tests/src/org/eclipse/ui/genericeditor/tests/GenericEditorTestSuite.java b/org.eclipse.ui.genericeditor.tests/src/org/eclipse/ui/genericeditor/tests/GenericEditorTestSuite.java
index 02581867800..366a17bd2cc 100644
--- a/org.eclipse.ui.genericeditor.tests/src/org/eclipse/ui/genericeditor/tests/GenericEditorTestSuite.java
+++ b/org.eclipse.ui.genericeditor.tests/src/org/eclipse/ui/genericeditor/tests/GenericEditorTestSuite.java
@@ -28,7 +28,8 @@ import org.junit.runners.Suite.SuiteClasses;
 		FoldingTest.class,
 		AutoEditTest.class,
 		ReconcilerTest.class,
-		HighlightTest.class
+		HighlightTest.class,
+		IconsTest.class
 })
 public class GenericEditorTestSuite {
 	// see @SuiteClasses
diff --git a/org.eclipse.ui.genericeditor.tests/src/org/eclipse/ui/genericeditor/tests/IconsTest.java b/org.eclipse.ui.genericeditor.tests/src/org/eclipse/ui/genericeditor/tests/IconsTest.java
new file mode 100644
index 00000000000..647ab781520
--- /dev/null
+++ b/org.eclipse.ui.genericeditor.tests/src/org/eclipse/ui/genericeditor/tests/IconsTest.java
@@ -0,0 +1,105 @@
+/********************************************************************************
+ * Copyright (c) 2019 Lakshminarayana Nekkanti(narayana.nekkanti@gmail.com)
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * SPDX-License-Identifier: EPL-2.0 3
+ *
+ * Contributor
+ * Lakshminarayana Nekkanti - initial API and implementation
+ ********************************************************************************/
+package org.eclipse.ui.genericeditor.tests;
+
+import static org.junit.Assert.assertEquals;
+
+import java.io.ByteArrayInputStream;
+import java.lang.reflect.Field;
+
+import org.junit.Test;
+
+import org.eclipse.core.runtime.NullProgressMonitor;
+import org.eclipse.core.runtime.Platform;
+import org.eclipse.core.runtime.content.IContentType;
+
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.ResourcesPlugin;
+
+import org.eclipse.jface.resource.ImageDescriptor;
+
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.internal.genericeditor.ExtensionBasedTextEditor;
+import org.eclipse.ui.internal.genericeditor.GenericEditorPlugin;
+import org.eclipse.ui.part.FileEditorInput;
+import org.eclipse.ui.tests.harness.util.UITestCase;
+
+public class IconsTest extends AbstratGenericEditorTest {
+
+	private ExtensionBasedTextEditor genericEditor;
+
+	private IFile testFile;
+
+	private IProject testProject;
+
+	@Test
+	public void testEditorIconParentSet() throws Exception {
+		testProject= ResourcesPlugin.getWorkspace().getRoot().getProject(getClass().getName() + System.currentTimeMillis());
+		testProject.create(null);
+		testProject.open(null);
+
+		testFile= testProject.getFile("foobar.txt");
+		testFile.create(new ByteArrayInputStream("Testing file".getBytes()), true, null);
+
+		genericEditor= (ExtensionBasedTextEditor) PlatformUI.getWorkbench().getActiveWorkbenchWindow()
+				.getActivePage().openEditor(new FileEditorInput(testFile), "org.eclipse.ui.genericeditor.GenericEditor");
+
+		Field field= genericEditor.getClass().getDeclaredField("contentTypeImageDescripter");
+		field.setAccessible(true);// Workaround to access descriptor
+
+		ImageDescriptor descriptor= GenericEditorPlugin.getDefault().getContentTypeImagesRegistry()
+				.getImageDescriptor(new IContentType[] { Platform.getContentTypeManager().getContentType("org.eclipse.ui.genericeditor.tests.content-type"),
+				});
+		assertEquals(field.get(genericEditor), descriptor);
+	}
+
+	@Test
+	public void testEditorIconChildSet() throws Exception {
+		testProject= ResourcesPlugin.getWorkspace().getRoot().getProject(getClass().getName() + System.currentTimeMillis());
+		testProject.create(null);
+		testProject.open(null);
+
+		testFile= testProject.getFile("foo.txt");
+		testFile.create(new ByteArrayInputStream("Testing file".getBytes()), true, null);
+
+		genericEditor= (ExtensionBasedTextEditor) PlatformUI.getWorkbench().getActiveWorkbenchWindow()
+				.getActivePage().openEditor(new FileEditorInput(testFile), "org.eclipse.ui.genericeditor.GenericEditor");
+
+		Field field= genericEditor.getClass().getDeclaredField("contentTypeImageDescripter");
+		field.setAccessible(true);// Workaround to access descriptor
+
+		ImageDescriptor descriptor= GenericEditorPlugin.getDefault().getContentTypeImagesRegistry()
+				.getImageDescriptor(new IContentType[] { Platform.getContentTypeManager().getContentType("org.eclipse.ui.genericeditor.tests.sub-specialized-content-type"),
+				});
+		assertEquals(field.get(genericEditor), descriptor);
+	}
+
+	@Override
+	public void tearDown() throws Exception {
+		if (genericEditor != null) {
+			genericEditor.close(false);
+			genericEditor= null;
+			UITestCase.processEvents();
+		}
+		if (testFile != null) {
+			testFile.delete(true, new NullProgressMonitor());
+			testFile= null;
+		}
+		if (testProject != null) {
+			testProject.delete(true, new NullProgressMonitor());
+			testProject= null;
+		}
+		super.tearDown();
+	}
+}