Bug 430370 - [CSS] Provide CSS handler for Forms Section element

Change-Id: I6b1a784afac77693cf70c1fb6b1222eee3cdc705
Signed-off-by: Simon Scholz <simon.scholz@vogella.com>

6 files changed, 186 insertions, 5 deletions

diff --git a/bundles/org.eclipse.ui.forms/META-INF/MANIFEST.MF b/bundles/org.eclipse.ui.forms/META-INF/MANIFEST.MF
index d4397afa96c..40edd10407c 100644
--- a/bundles/org.eclipse.ui.forms/META-INF/MANIFEST.MF
+++ b/bundles/org.eclipse.ui.forms/META-INF/MANIFEST.MF
@@ -1,7 +1,7 @@
 Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %name
-Bundle-SymbolicName: org.eclipse.ui.forms
+Bundle-SymbolicName: org.eclipse.ui.forms;singleton:=true
 Bundle-Version: 3.6.100.qualifier
 Bundle-Vendor: %provider-name
 Bundle-Localization: plugin
@@ -13,7 +13,9 @@ Export-Package: org.eclipse.ui.forms,
  org.eclipse.ui.internal.forms.widgets;x-friends:="org.eclipse.ui.tests.forms"
 Require-Bundle: org.eclipse.core.runtime;bundle-version="[3.6.0,4.0.0)",
  org.eclipse.jface;bundle-version="[3.6.0,4.0.0)",
- org.eclipse.ui;bundle-version="[3.105.0,4.0.0)";resolution:=optional
+ org.eclipse.ui;bundle-version="[3.105.0,4.0.0)";resolution:=optional,
+ org.eclipse.e4.ui.css.core;bundle-version="0.10.100",
+ org.eclipse.e4.ui.css.swt;bundle-version="0.11.100"
 Eclipse-LazyStart: true
 Import-Package: com.ibm.icu.text,
  javax.xml.parsers,
diff --git a/bundles/org.eclipse.ui.forms/build.properties b/bundles/org.eclipse.ui.forms/build.properties
index b5a06334aeb..c2219a02ad3 100644
--- a/bundles/org.eclipse.ui.forms/build.properties
+++ b/bundles/org.eclipse.ui.forms/build.properties
@@ -1,10 +1,10 @@
 ###############################################################################
-#  Copyright (c) 2003, 2007 IBM Corporation and others.
+#  Copyright (c) 2003, 2014 IBM Corporation and others.
 #  All rights reserved. This program and the accompanying materials
 #  are made available under the terms of the Eclipse Public License v1.0
 #  which accompanies this distribution, and is available at
 #  http://www.eclipse.org/legal/epl-v10.html
-# 
+#
 #  Contributors:
 #     IBM Corporation - initial API and implementation
 ###############################################################################
@@ -12,6 +12,7 @@ bin.includes = plugin.properties,\
                .,\
                about.html,\
                META-INF/,\
-               icons/
+               icons/,\
+               plugin.xml
 source.. = src/
 src.includes = about.html
diff --git a/bundles/org.eclipse.ui.forms/plugin.xml b/bundles/org.eclipse.ui.forms/plugin.xml
new file mode 100644
index 00000000000..76edcfc8451
--- /dev/null
+++ b/bundles/org.eclipse.ui.forms/plugin.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?eclipse version="3.4"?>
+<plugin>
+ <extension
+         point="org.eclipse.e4.ui.css.core.propertyHandler">
+      <handler
+            adapter="org.eclipse.ui.forms.css.dom.SectionElement"
+            composite="false"
+            handler="org.eclipse.ui.forms.css.properties.css2.CSSPropertyTitleFormsHandler">
+         <property-name
+               name="background-color-gradient-titlebar">
+         </property-name>
+         <property-name
+               name="background-color-titlebar">
+         </property-name>
+         <property-name
+               name="border-color-titlebar">
+         </property-name>
+      </handler>
+   </extension>
+   <extension
+         point="org.eclipse.e4.ui.css.core.elementProvider">
+      <provider
+            class="org.eclipse.ui.forms.css.dom.FormsElementProvider">
+         <widget
+               class="org.eclipse.ui.forms.widgets.Section"></widget>
+      </provider>
+   </extension>
+</plugin>
diff --git a/bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/css/dom/FormsElementProvider.java b/bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/css/dom/FormsElementProvider.java
new file mode 100644
index 00000000000..c0b4f5d9366
--- /dev/null
+++ b/bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/css/dom/FormsElementProvider.java
@@ -0,0 +1,38 @@
+/*******************************************************************************
+ * Copyright (c) 2014 vogella GmbH and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *      Lars Vogel <Lars.Vogel@gmail.com> - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.ui.forms.css.dom;
+
+import org.eclipse.e4.ui.css.core.dom.IElementProvider;
+import org.eclipse.e4.ui.css.core.engine.CSSEngine;
+import org.eclipse.ui.forms.widgets.Section;
+import org.w3c.dom.Element;
+
+/**
+ * Returns the CSS class which is responsible for styling a forms widget
+ *
+ * Registered via the "org.eclipse.e4.ui.css.core.elementProvider" extension
+ * point for the widgets
+ *
+ * {@link IElementProvider} SWT implementation to retrieve w3c Element
+ *
+ */
+public class FormsElementProvider implements IElementProvider {
+
+	public static final IElementProvider INSTANCE = new FormsElementProvider();
+
+	public Element getElement(Object element, CSSEngine engine) {
+		if (element instanceof Section) {
+			return new SectionElement((Section) element, engine);
+		}
+
+		return null;
+	}
+}
diff --git a/bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/css/dom/SectionElement.java b/bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/css/dom/SectionElement.java
new file mode 100644
index 00000000000..7576fc37e51
--- /dev/null
+++ b/bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/css/dom/SectionElement.java
@@ -0,0 +1,45 @@
+/*******************************************************************************
+ * Copyright (c) 2014 vogella GmbH and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Lars Vogel <Lars.Vogel@gmail.com> - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.ui.forms.css.dom;
+
+import org.eclipse.e4.ui.css.core.dom.CSSStylableElement;
+import org.eclipse.e4.ui.css.core.engine.CSSEngine;
+import org.eclipse.e4.ui.css.swt.dom.CompositeElement;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.ui.forms.widgets.Section;
+
+/**
+ * {@link CSSStylableElement} implementation which wrap SWT {@link Section}.
+ *
+ */
+public class SectionElement extends CompositeElement {
+
+
+	private Color titleBarBackground;
+	private Color titleBarBorderColor;
+	private Color titleBarGradientBackground;
+
+	public SectionElement(Section section, CSSEngine engine) {
+		super(section, engine);
+		titleBarBackground = section.getTitleBarBackground();
+		titleBarBorderColor = section.getTitleBarBorderColor();
+		titleBarGradientBackground = section.getTitleBarGradientBackground();
+	}
+
+	public void reset() {
+		super.reset();
+		Section section = (Section) getWidget();
+		section.setTitleBarBackground(titleBarBackground);
+		section.setTitleBarBorderColor(titleBarBorderColor);
+		section.setTitleBarGradientBackground(titleBarGradientBackground);
+	}
+
+}
diff --git a/bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/css/properties/css2/CSSPropertyTitleFormsHandler.java b/bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/css/properties/css2/CSSPropertyTitleFormsHandler.java
new file mode 100644
index 00000000000..92035bc40f6
--- /dev/null
+++ b/bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/css/properties/css2/CSSPropertyTitleFormsHandler.java
@@ -0,0 +1,66 @@
+/*******************************************************************************
+ * Copyright (c) 2014 vogella GmbH and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Lars Vogel <Lars.Vogel@gmail.com> - Bug 422702
+ *     Simon Scholz <simon.scholz@vogella.com> - Bug 430370
+ *******************************************************************************/
+package org.eclipse.ui.forms.css.properties.css2;
+
+import org.eclipse.e4.ui.css.core.engine.CSSEngine;
+import org.eclipse.e4.ui.css.swt.properties.AbstractCSSPropertySWTHandler;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.ui.forms.widgets.Section;
+import org.w3c.dom.css.CSSValue;
+
+public class CSSPropertyTitleFormsHandler extends AbstractCSSPropertySWTHandler {
+
+	private static final String BACKGROUND_COLOR_GRADIENT_TITLEBAR_PROPERTY = "background-color-gradient-titlebar"; //$NON-NLS-1$
+	private static final String BACKGROUND_COLOR_TITLEBAR_PROPERTY = "background-color-titlebar"; //$NON-NLS-1$
+	private static final String BORDER_COLOR_TITLEBAR_PROPERTY = "border-color-titlebar"; //$NON-NLS-1$
+
+	protected void applyCSSProperty(Control control, String property, CSSValue value, String pseudo, CSSEngine engine)
+			throws Exception {
+
+		if (BACKGROUND_COLOR_GRADIENT_TITLEBAR_PROPERTY.equalsIgnoreCase(property)) {
+			if (control instanceof Section) {
+				if (value.getCssValueType() == CSSValue.CSS_PRIMITIVE_VALUE) {
+					Color newColor = (Color) engine.convert(value, Color.class, control.getDisplay());
+					((Section) control).setTitleBarGradientBackground(newColor);
+				} else if (value.getCssValueType() == CSSValue.CSS_VALUE_LIST) {
+
+				}
+			}
+		} else if (BACKGROUND_COLOR_TITLEBAR_PROPERTY.equalsIgnoreCase(property)) {
+			if (control instanceof Section) {
+				if (value.getCssValueType() == CSSValue.CSS_PRIMITIVE_VALUE) {
+					Color newColor = (Color) engine.convert(value, Color.class, control.getDisplay());
+					((Section) control).setTitleBarBackground(newColor);
+				} else if (value.getCssValueType() == CSSValue.CSS_VALUE_LIST) {
+
+				}
+			}
+		} else if (BORDER_COLOR_TITLEBAR_PROPERTY.equalsIgnoreCase(property)) {
+			if (control instanceof Section) {
+				if (value.getCssValueType() == CSSValue.CSS_PRIMITIVE_VALUE) {
+					Color newColor = (Color) engine.convert(value, Color.class, control.getDisplay());
+					((Section) control).setTitleBarBorderColor(newColor);
+				} else if (value.getCssValueType() == CSSValue.CSS_VALUE_LIST) {
+
+				}
+			}
+		}
+	}
+
+	protected String retrieveCSSProperty(Control control, String property, String pseudo, CSSEngine engine)
+			throws Exception {
+
+		return null;
+	}
+
+}