Content Viewers
Identifier:
org.eclipse.compare.contentViewers
Description:
This extension point allows a plug-in to register
viewers for specific content types.
These viewers are used in the
EditionSelectionDialog when presenting an edition of a resource or a subsection thereof. The viewer is expected to extend
org.eclipse.jface.viewers.Viewer.
However since viewers don't have a default constructor the extension point must implement the factory interface for viewers
org.eclipse.compare.IViewerCreator.
Configuration Markup:
<!ELEMENT extension (
viewer* ,
contentTypeBinding*)>
<!ATTLIST extension
point CDATA #REQUIRED
id CDATA #IMPLIED
name CDATA #IMPLIED
>
-
point - a fully qualified identifier of the target extension point
-
id - an optional identifier of the extension instance
-
name - an optional name of the extension instance
<!ELEMENT viewer EMPTY>
<!ATTLIST viewer
id CDATA #REQUIRED
class CDATA #REQUIRED
extensions CDATA #IMPLIED
>
-
id - a unique identifier that can be used to reference the viewer
-
class - a fully qualified name of a class that implements a factory for the
content viewer and implements org.eclipse.compare.IViewerCreator
-
extensions - a comma separated list of file extensions e.g. "java, gif"
<!ELEMENT contentTypeBinding EMPTY>
<!ATTLIST contentTypeBinding
contentTypeId IDREF #REQUIRED
contentViewerId IDREF #REQUIRED
>
A contentTypeBinding binds a content viewer to a content type.
-
contentTypeId - The id of a content type defined using the
org.eclipse.core.contenttype.contentTypes extension point.
-
contentViewerId - The id of a content viewer defined using the
viewer element of this extension point (i.e. org.eclipse.compare.contentViewers)
Examples:
The following is an example of a viewer for text
files (extension "txt"):
<extension point =
"org.eclipse.compare.contentViewers"
>
<viewer
id=
"org.eclipse.compare.internal.TextViewer"
class=
"org.eclipse.compare.internal.TextViewerCreator"
extensions=
"txt"
/>
</extension>
Supplied Implementation:
The Compare UI plugin defines content viewers for
text and images.
Copyright (c) 2000, 2008 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
https://www.eclipse.org/legal/epl-v10.html
