| 1 | /******************************************************************************* |
| 2 | * Copyright (c) 2005, 2006 IBM Corporation and others. |
| 3 | * All rights reserved. This program and the accompanying materials |
| 4 | * are made available under the terms of the Eclipse Public License v1.0 |
| 5 | * which accompanies this distribution, and is available at |
| 6 | * http://www.eclipse.org/legal/epl-v10.html |
| 7 | * |
| 8 | * Contributors: |
| 9 | * IBM Corporation - initial API and implementation |
| 10 | *******************************************************************************/ |
| 11 | package org.eclipse.ui.internal.ide.model; |
| 12 | |
| 13 | import java.util.ArrayList; |
| 14 | import java.util.List; |
| 15 | |
| 16 | import org.eclipse.core.resources.IResource; |
| 17 | import org.eclipse.core.resources.mapping.ResourceMapping; |
| 18 | import org.eclipse.core.runtime.IAdaptable; |
| 19 | import org.eclipse.core.runtime.IAdapterFactory; |
| 20 | import org.eclipse.core.runtime.Platform; |
| 21 | import org.eclipse.jface.resource.ImageDescriptor; |
| 22 | import org.eclipse.ui.IContributorResourceAdapter; |
| 23 | import org.eclipse.ui.IWorkingSet; |
| 24 | import org.eclipse.ui.ide.IContributorResourceAdapter2; |
| 25 | import org.eclipse.ui.model.IWorkbenchAdapter; |
| 26 | |
| 27 | /** |
| 28 | * Adapter factory which provides a ResourceMapping for a working set |
| 29 | */ |
| 30 | public class WorkingSetAdapterFactory implements IAdapterFactory { |
| 31 | |
| 32 | /* |
| 33 | * Adapter for converting a working set to a resource mapping for use by |
| 34 | * object contributions. |
| 35 | */ |
| 36 | class ContributorResourceAdapter implements IContributorResourceAdapter2 { |
| 37 | |
| 38 | public ResourceMapping getAdaptedResourceMapping(IAdaptable adaptable) { |
| 39 | if (adaptable instanceof IWorkingSet) { |
| 40 | IWorkingSet workingSet = (IWorkingSet) adaptable; |
| 41 | IAdaptable[] elements = workingSet.getElements(); |
| 42 | List result = new ArrayList(); |
| 43 | for (int i = 0; i < elements.length; i++) { |
| 44 | IAdaptable element = elements[i]; |
| 45 | ResourceMapping mapping = getContributedResourceMapping(element); |
| 46 | if (mapping == null) { |
| 47 | mapping = getResourceMapping(element); |
| 48 | } |
| 49 | if (mapping != null) { |
| 50 | result.add(mapping); |
| 51 | } |
| 52 | } |
| 53 | if (!result.isEmpty()) { |
| 54 | return new WorkingSetResourceMapping(workingSet); |
| 55 | } |
| 56 | } |
| 57 | return null; |
| 58 | } |
| 59 | |
| 60 | public IResource getAdaptedResource(IAdaptable adaptable) { |
| 61 | // Working sets don't adapt to IResource |
| 62 | return null; |
| 63 | } |
| 64 | |
| 65 | } |
| 66 | |
| 67 | class WorkbenchAdapter implements IWorkbenchAdapter { |
| 68 | |
| 69 | public Object[] getChildren(Object o) { |
| 70 | if (o instanceof IWorkingSet) { |
| 71 | IWorkingSet set = (IWorkingSet) o; |
| 72 | return set.getElements(); |
| 73 | } |
| 74 | return null; |
| 75 | } |
| 76 | |
| 77 | public ImageDescriptor getImageDescriptor(Object o) { |
| 78 | if (o instanceof IWorkingSet) { |
| 79 | IWorkingSet set = (IWorkingSet) o; |
| 80 | return set.getImageDescriptor(); |
| 81 | } |
| 82 | return null; |
| 83 | } |
| 84 | |
| 85 | public String getLabel(Object o) { |
| 86 | if (o instanceof IWorkingSet) { |
| 87 | IWorkingSet set = (IWorkingSet) o; |
| 88 | return set.getLabel(); |
| 89 | } |
| 90 | return null; |
| 91 | } |
| 92 | |
| 93 | public Object getParent(Object o) { |
| 94 | return null; |
| 95 | } |
| 96 | |
| 97 | } |
| 98 | |
| 99 | private IContributorResourceAdapter2 contributorResourceAdapter = new ContributorResourceAdapter(); |
| 100 | |
| 101 | private IWorkbenchAdapter workbenchAdapter = new WorkbenchAdapter(); |
| 102 | |
| 103 | /* |
| 104 | * (non-Javadoc) |
| 105 | * |
| 106 | * @see org.eclipse.core.runtime.IAdapterFactory#getAdapter(java.lang.Object, |
| 107 | * java.lang.Class) |
| 108 | */ |
| 109 | public Object getAdapter(Object adaptableObject, Class adapterType) { |
| 110 | if (adaptableObject instanceof IWorkingSet) { |
| 111 | if (adapterType == IContributorResourceAdapter.class) { |
| 112 | return contributorResourceAdapter; |
| 113 | } |
| 114 | if (adapterType == IWorkbenchAdapter.class) { |
| 115 | return workbenchAdapter; |
| 116 | } |
| 117 | if (adapterType == ResourceMapping.class) { |
| 118 | IWorkingSet workingSet = (IWorkingSet) adaptableObject; |
| 119 | IAdaptable[] elements = workingSet.getElements(); |
| 120 | List result = new ArrayList(); |
| 121 | for (int i = 0; i < elements.length; i++) { |
| 122 | IAdaptable element = elements[i]; |
| 123 | ResourceMapping mapping = getResourceMapping(element); |
| 124 | if (mapping != null) { |
| 125 | result.add(mapping); |
| 126 | } |
| 127 | } |
| 128 | if (!result.isEmpty()) { |
| 129 | return new WorkingSetResourceMapping(workingSet); |
| 130 | } |
| 131 | } |
| 132 | } |
| 133 | return null; |
| 134 | } |
| 135 | |
| 136 | /* |
| 137 | * (non-Javadoc) |
| 138 | * |
| 139 | * @see org.eclipse.core.runtime.IAdapterFactory#getAdapterList() |
| 140 | */ |
| 141 | public Class[] getAdapterList() { |
| 142 | return new Class[] { IContributorResourceAdapter2.class, |
| 143 | IWorkbenchAdapter.class, ResourceMapping.class }; |
| 144 | } |
| 145 | |
| 146 | static ResourceMapping getResourceMapping(Object o) { |
| 147 | // First, ask the object directly for a resource mapping |
| 148 | Object mapping = internalGetAdapter(o, ResourceMapping.class); |
| 149 | if (mapping instanceof ResourceMapping) { |
| 150 | return (ResourceMapping) mapping; |
| 151 | } |
| 152 | // If this fails, ask for a resource and convert to a resource mapping |
| 153 | Object resource = internalGetAdapter(o, IResource.class); |
| 154 | if (resource != null) { |
| 155 | mapping = internalGetAdapter(resource, ResourceMapping.class); |
| 156 | if (mapping instanceof ResourceMapping) { |
| 157 | return (ResourceMapping) mapping; |
| 158 | } |
| 159 | } |
| 160 | return null; |
| 161 | } |
| 162 | |
| 163 | static ResourceMapping getContributedResourceMapping( |
| 164 | IAdaptable element) { |
| 165 | Object resourceAdapter = internalGetAdapter(element, |
| 166 | IContributorResourceAdapter.class); |
| 167 | if (resourceAdapter != null) { |
| 168 | if (resourceAdapter instanceof IContributorResourceAdapter2) { |
| 169 | // First, use the mapping contributor adapter to get the mapping |
| 170 | IContributorResourceAdapter2 mappingAdapter = (IContributorResourceAdapter2) resourceAdapter; |
| 171 | ResourceMapping mapping = mappingAdapter |
| 172 | .getAdaptedResourceMapping(element); |
| 173 | if (mapping != null) { |
| 174 | return mapping; |
| 175 | } |
| 176 | } |
| 177 | if (resourceAdapter instanceof IContributorResourceAdapter) { |
| 178 | // Next, use the resource adapter to get a resource and then get |
| 179 | // the mapping for that resource |
| 180 | IResource resource = ((IContributorResourceAdapter) resourceAdapter) |
| 181 | .getAdaptedResource(element); |
| 182 | if (resource != null) { |
| 183 | Object mapping = internalGetAdapter(resource, |
| 184 | ResourceMapping.class); |
| 185 | if (mapping instanceof ResourceMapping) { |
| 186 | return (ResourceMapping) mapping; |
| 187 | } |
| 188 | } |
| 189 | } |
| 190 | } |
| 191 | return null; |
| 192 | } |
| 193 | |
| 194 | static Object internalGetAdapter(Object o, Class adapter) { |
| 195 | if (o instanceof IAdaptable) { |
| 196 | IAdaptable element = (IAdaptable) o; |
| 197 | Object adapted = element.getAdapter(adapter); |
| 198 | if (adapted != null) { |
| 199 | return adapted; |
| 200 | } |
| 201 | } |
| 202 | // Fallback to the adapter manager in case the object doesn't |
| 203 | // implement getAdapter or in the case where the implementation |
| 204 | // doesn't consult the manager |
| 205 | return Platform.getAdapterManager().getAdapter(o, adapter); |
| 206 | } |
| 207 | |
| 208 | } |