Skip to main content
aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorUwe Stieber2013-02-12 11:54:15 -0500
committerUwe Stieber2013-02-12 11:54:15 -0500
commitea3bb832760b1e41ee836e0572113cb7bb098e35 (patch)
tree999f3c88a86ef7108d215f9de5f9d2c3981c1e1b /target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf
parent3c2b776d96c96c56b8de58ee830dce16d81213bc (diff)
downloadorg.eclipse.tcf-ea3bb832760b1e41ee836e0572113cb7bb098e35.tar.gz
org.eclipse.tcf-ea3bb832760b1e41ee836e0572113cb7bb098e35.tar.xz
org.eclipse.tcf-ea3bb832760b1e41ee836e0572113cb7bb098e35.zip
Target Explorer: Rework view category handling. Category contributions can have an enablement expression now and can be filtered if the associated content contribution is not active
Diffstat (limited to 'target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf')
-rw-r--r--target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/handler/DeleteHandler.java6
-rw-r--r--target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/handler/OfflineCommandHandler.java2
-rw-r--r--target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/interfaces/IUIConstants.java28
-rw-r--r--target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/internal/adapters/CategorizableAdapter.java4
-rw-r--r--target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/navigator/ContentProviderDelegate.java24
-rw-r--r--target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/navigator/dnd/CommonDnD.java438
6 files changed, 273 insertions, 229 deletions
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/handler/DeleteHandler.java b/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/handler/DeleteHandler.java
index 52a103169..11eaa6959 100644
--- a/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/handler/DeleteHandler.java
+++ b/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/handler/DeleteHandler.java
@@ -40,13 +40,13 @@ import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerModel;
import org.eclipse.tcf.te.tcf.locator.interfaces.services.ILocatorModelRefreshService;
import org.eclipse.tcf.te.tcf.locator.model.Model;
import org.eclipse.tcf.te.tcf.ui.help.IContextHelpIds;
+import org.eclipse.tcf.te.tcf.ui.interfaces.IUIConstants;
import org.eclipse.tcf.te.tcf.ui.nls.Messages;
import org.eclipse.tcf.te.ui.interfaces.handler.IDeleteHandlerDelegate;
import org.eclipse.tcf.te.ui.views.Managers;
import org.eclipse.tcf.te.ui.views.ViewsUtil;
import org.eclipse.tcf.te.ui.views.editor.EditorInput;
import org.eclipse.tcf.te.ui.views.interfaces.ICategory;
-import org.eclipse.tcf.te.ui.views.interfaces.IUIConstants;
import org.eclipse.tcf.te.ui.views.interfaces.categories.ICategorizable;
import org.eclipse.tcf.te.ui.views.interfaces.categories.ICategoryManager;
import org.eclipse.ui.IEditorPart;
@@ -76,7 +76,7 @@ public class DeleteHandler extends AbstractHandler {
@Override
protected void internalDone(Object caller, IStatus status) {
// Refresh the view
- ViewsUtil.refresh(IUIConstants.ID_EXPLORER);
+ ViewsUtil.refresh(org.eclipse.tcf.te.ui.views.interfaces.IUIConstants.ID_EXPLORER);
}
});
}
@@ -375,7 +375,7 @@ public class DeleteHandler extends AbstractHandler {
} else if (category != null) {
// If the parent category is "Favorites", it is always
// an "unlink" operation
- if (IUIConstants.ID_CAT_FAVORITES.equals(category.getId())) {
+ if (org.eclipse.tcf.te.ui.views.interfaces.IUIConstants.ID_CAT_FAVORITES.equals(category.getId())) {
Operation op = new Operation();
op.node = node;
op.type = Operation.TYPE.Unlink;
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/handler/OfflineCommandHandler.java b/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/handler/OfflineCommandHandler.java
index f896474f9..95ae02459 100644
--- a/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/handler/OfflineCommandHandler.java
+++ b/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/handler/OfflineCommandHandler.java
@@ -38,9 +38,9 @@ import org.eclipse.tcf.te.tcf.locator.interfaces.services.ILocatorModelRefreshSe
import org.eclipse.tcf.te.tcf.locator.model.Model;
import org.eclipse.tcf.te.tcf.ui.activator.UIPlugin;
import org.eclipse.tcf.te.tcf.ui.help.IContextHelpIds;
+import org.eclipse.tcf.te.tcf.ui.interfaces.IUIConstants;
import org.eclipse.tcf.te.tcf.ui.nls.Messages;
import org.eclipse.tcf.te.ui.views.Managers;
-import org.eclipse.tcf.te.ui.views.interfaces.IUIConstants;
import org.eclipse.tcf.te.ui.views.interfaces.categories.ICategorizable;
import org.eclipse.ui.handlers.HandlerUtil;
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/interfaces/IUIConstants.java b/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/interfaces/IUIConstants.java
new file mode 100644
index 000000000..057fc2d36
--- /dev/null
+++ b/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/interfaces/IUIConstants.java
@@ -0,0 +1,28 @@
+/*******************************************************************************
+ * Copyright (c) 2013 Wind River Systems, Inc. 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:
+ * Wind River Systems - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.tcf.te.tcf.ui.interfaces;
+
+/**
+ * UI constants.
+ */
+public interface IUIConstants {
+
+ // ***** Define the constants for the default TCF view categories *****
+
+ /**
+ * Category: "My Targets"
+ */
+ public static final String ID_CAT_MY_TARGETS = "org.eclipse.tcf.te.tcf.ui.category.mytargets"; //$NON-NLS-1$
+
+ /**
+ * Category: Neighborhood
+ */
+ public static final String ID_CAT_NEIGHBORHOOD = "org.eclipse.tcf.te.tcf.ui.category.neighborhood"; //$NON-NLS-1$
+}
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/internal/adapters/CategorizableAdapter.java b/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/internal/adapters/CategorizableAdapter.java
index 73874f758..828737c3a 100644
--- a/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/internal/adapters/CategorizableAdapter.java
+++ b/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/internal/adapters/CategorizableAdapter.java
@@ -14,9 +14,9 @@ import java.util.concurrent.atomic.AtomicBoolean;
import org.eclipse.core.runtime.Assert;
import org.eclipse.tcf.protocol.Protocol;
import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerModel;
+import org.eclipse.tcf.te.tcf.ui.interfaces.IUIConstants;
import org.eclipse.tcf.te.ui.views.Managers;
import org.eclipse.tcf.te.ui.views.interfaces.ICategory;
-import org.eclipse.tcf.te.ui.views.interfaces.IUIConstants;
import org.eclipse.tcf.te.ui.views.interfaces.categories.ICategorizable;
/**
@@ -87,7 +87,7 @@ public class CategorizableAdapter implements ICategorizable {
}
// ALL: Destination is "Neighborhood" -> not valid
- if (IUIConstants.ID_CAT_FAVORITES.equals(category.getId())) {
+ if (org.eclipse.tcf.te.ui.views.interfaces.IUIConstants.ID_CAT_FAVORITES.equals(category.getId())) {
return true;
}
}
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/navigator/ContentProviderDelegate.java b/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/navigator/ContentProviderDelegate.java
index 57d2f402b..2e2e2f06c 100644
--- a/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/navigator/ContentProviderDelegate.java
+++ b/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/navigator/ContentProviderDelegate.java
@@ -33,6 +33,7 @@ import org.eclipse.tcf.te.tcf.locator.interfaces.services.ILocatorModelLookupSer
import org.eclipse.tcf.te.tcf.locator.interfaces.services.ILocatorModelRefreshService;
import org.eclipse.tcf.te.tcf.locator.model.Model;
import org.eclipse.tcf.te.tcf.ui.activator.UIPlugin;
+import org.eclipse.tcf.te.tcf.ui.interfaces.IUIConstants;
import org.eclipse.tcf.te.tcf.ui.internal.preferences.IPreferenceKeys;
import org.eclipse.tcf.te.tcf.ui.navigator.nodes.PeerRedirectorGroupNode;
import org.eclipse.tcf.te.ui.swt.DisplayUtil;
@@ -40,7 +41,6 @@ import org.eclipse.tcf.te.ui.views.Managers;
import org.eclipse.tcf.te.ui.views.extensions.CategoriesExtensionPointManager;
import org.eclipse.tcf.te.ui.views.interfaces.ICategory;
import org.eclipse.tcf.te.ui.views.interfaces.IRoot;
-import org.eclipse.tcf.te.ui.views.interfaces.IUIConstants;
import org.eclipse.tcf.te.ui.views.interfaces.categories.ICategorizable;
import org.eclipse.ui.IMemento;
import org.eclipse.ui.internal.navigator.NavigatorFilterService;
@@ -153,7 +153,7 @@ public class ContentProviderDelegate implements ICommonContentProvider, ITreePat
final IPeerModel[] peers = model.getPeers();
final List<IPeerModel> candidates = new ArrayList<IPeerModel>();
- if (IUIConstants.ID_CAT_FAVORITES.equals(catID)) {
+ if (org.eclipse.tcf.te.ui.views.interfaces.IUIConstants.ID_CAT_FAVORITES.equals(catID)) {
for (IPeerModel peer : peers) {
ICategorizable categorizable = (ICategorizable)peer.getAdapter(ICategorizable.class);
if (categorizable == null) {
@@ -184,6 +184,14 @@ public class ContentProviderDelegate implements ICommonContentProvider, ITreePat
// Static peers, or if launched by current user -> add automatically to "My Targets"
boolean startedByCurrentUser = System.getProperty("user.name").equals(peer.getPeer().getUserName()); //$NON-NLS-1$
+ if (!startedByCurrentUser) {
+ // If the "Neighborhood" category is not visible, ignore the startedByCurrentUser flag
+ ICategory neighborhoodCat = CategoriesExtensionPointManager.getInstance().getCategory(IUIConstants.ID_CAT_NEIGHBORHOOD, false);
+ if (neighborhoodCat != null && !neighborhoodCat.isEnabled()) {
+ startedByCurrentUser = true;
+ }
+ }
+
boolean isMyTargets = Managers.getCategoryManager().belongsTo(catID, categorizable.getId());
if (!isMyTargets && (isStatic || startedByCurrentUser)) {
// "Value-add's" are not saved to the category persistence automatically
@@ -216,6 +224,14 @@ public class ContentProviderDelegate implements ICommonContentProvider, ITreePat
boolean isStatic = peer.isStatic();
boolean startedByCurrentUser = System.getProperty("user.name").equals(peer.getPeer().getUserName()); //$NON-NLS-1$
+ if (startedByCurrentUser) {
+ // If the "My Targets" category is not visible, ignore the startedByCurrentUser flag
+ ICategory myTargetsCat = CategoriesExtensionPointManager.getInstance().getCategory(IUIConstants.ID_CAT_MY_TARGETS, false);
+ if (myTargetsCat != null && !myTargetsCat.isEnabled()) {
+ startedByCurrentUser = false;
+ }
+ }
+
boolean isNeighborhood = Managers.getCategoryManager().belongsTo(catID, categorizable.getId());
if (!isNeighborhood && !isStatic && !startedByCurrentUser) {
// "Neighborhood" is always transient
@@ -355,9 +371,9 @@ public class ContentProviderDelegate implements ICommonContentProvider, ITreePat
List<TreePath> pathes = new ArrayList<TreePath>();
if (element instanceof IPeerModel) {
- if (Managers.getCategoryManager().belongsTo(IUIConstants.ID_CAT_FAVORITES, ((IPeerModel)element).getPeerId())) {
+ if (Managers.getCategoryManager().belongsTo(org.eclipse.tcf.te.ui.views.interfaces.IUIConstants.ID_CAT_FAVORITES, ((IPeerModel)element).getPeerId())) {
// Get the "Favorites" category
- ICategory favCategory = CategoriesExtensionPointManager.getInstance().getCategory(IUIConstants.ID_CAT_FAVORITES, false);
+ ICategory favCategory = CategoriesExtensionPointManager.getInstance().getCategory(org.eclipse.tcf.te.ui.views.interfaces.IUIConstants.ID_CAT_FAVORITES, false);
if (favCategory != null) {
pathes.add(new TreePath(new Object[] { favCategory }));
}
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/navigator/dnd/CommonDnD.java b/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/navigator/dnd/CommonDnD.java
index 257d79059..b5babc0e4 100644
--- a/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/navigator/dnd/CommonDnD.java
+++ b/target_explorer/plugins/org.eclipse.tcf.te.tcf.ui/src/org/eclipse/tcf/te/tcf/ui/navigator/dnd/CommonDnD.java
@@ -1,219 +1,219 @@
-/*******************************************************************************
- * Copyright (c) 2012 Wind River Systems, Inc. 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:
- * Wind River Systems - initial API and implementation
- *******************************************************************************/
-package org.eclipse.tcf.te.tcf.ui.navigator.dnd;
-
-import java.util.Iterator;
-
-import org.eclipse.jface.util.LocalSelectionTransfer;
-import org.eclipse.jface.viewers.IStructuredSelection;
-import org.eclipse.jface.viewers.TreePath;
-import org.eclipse.jface.viewers.TreeSelection;
-import org.eclipse.swt.dnd.DND;
-import org.eclipse.swt.dnd.TransferData;
-import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerModel;
-import org.eclipse.tcf.te.ui.views.Managers;
-import org.eclipse.tcf.te.ui.views.ViewsUtil;
-import org.eclipse.tcf.te.ui.views.interfaces.ICategory;
-import org.eclipse.tcf.te.ui.views.interfaces.IRoot;
-import org.eclipse.tcf.te.ui.views.interfaces.IUIConstants;
-import org.eclipse.ui.navigator.CommonDropAdapter;
-
-/**
- * Common DND operation implementations.
- */
-public class CommonDnD {
-
- /**
- * If the current selection is draggable.
- *
- * @param selection The currently selected nodes.
- * @return true if it is draggable.
- */
- public static boolean isDraggable(IStructuredSelection selection) {
- if (selection.isEmpty()) {
- return false;
- }
- Object[] objects = selection.toArray();
- for (Object object : objects) {
- if (!isDraggableObject(object)) {
- return false;
- }
- }
- return true;
- }
-
- /**
- * If the specified object is a draggable element.
- *
- * @param object The object to be dragged.
- * @return true if it is draggable.
- */
- private static boolean isDraggableObject(Object object) {
- return object instanceof IPeerModel;
- }
-
- /**
- * Perform the drop operation over dragged selection.
- *
- * @param dropAdapter The common drop adapter.
- * @param target The target Object to be moved to.
- * @param operations The current DnD operation.
- * @param selection The local selection being dropped.
- * @return true if the dropping is successful.
- */
- public static boolean dropLocalSelection(CommonDropAdapter dropAdapter, Object target, int operations, IStructuredSelection selection) {
- if (target instanceof ICategory) {
- ICategory hovered = (ICategory) target;
- if (IUIConstants.ID_CAT_FAVORITES.equals(hovered.getId())
- || IUIConstants.ID_CAT_MY_TARGETS.equals(hovered.getId())) {
- Iterator<?> iterator = selection.iterator();
- while (iterator.hasNext()) {
- Object element = iterator.next();
- if (!isDraggableObject(element)) {
- continue;
- }
- Managers.getCategoryManager().add(hovered.getId(), ((IPeerModel)element).getPeerId());
- }
- // Fire a refresh of the view
- ViewsUtil.refresh(IUIConstants.ID_EXPLORER);
- }
- } else if (target instanceof IRoot) {
- Iterator<?> iterator = selection.iterator();
- while (iterator.hasNext()) {
- Object element = iterator.next();
- if (!isDraggableObject(element)) {
- continue;
- }
-
- // To determine the parent category, we have to look at the tree path
- TreePath[] pathes = selection instanceof TreeSelection ? ((TreeSelection)selection).getPathsFor(element) : null;
- if (pathes != null && pathes.length > 0) {
- for (TreePath path : pathes) {
- ICategory category = null;
- TreePath parentPath = path.getParentPath();
- while (parentPath != null) {
- if (parentPath.getLastSegment() instanceof ICategory) {
- category = (ICategory)parentPath.getLastSegment();
- break;
- }
- parentPath = parentPath.getParentPath();
- }
-
- if (category != null) {
- Managers.getCategoryManager().remove(category.getId(), ((IPeerModel)element).getPeerId());
- }
- }
- }
- }
-
- // Fire a refresh of the view
- ViewsUtil.refresh(IUIConstants.ID_EXPLORER);
- }
-
- return false;
- }
-
- /**
- * Validate dropping when the elements being dragged are local selection.
- *
- * @param dropAdapter The common drop adapter.
- * @param target The target object.
- * @param operation The DnD operation.
- * @param transferType The transfered data type.
- *
- * @return true if it is valid for dropping.
- */
- public static boolean validateLocalSelectionDrop(CommonDropAdapter dropAdapter, Object target, int operation, TransferData transferType) {
- int overrideOperation = -1;
- boolean valid = false;
-
- // The default operation should be always "DROP_MOVE"
- if ((operation & DND.DROP_MOVE) == 0) {
- overrideOperation = DND.DROP_MOVE;
- }
-
- LocalSelectionTransfer transfer = LocalSelectionTransfer.getTransfer();
- IStructuredSelection selection = (IStructuredSelection) transfer.getSelection();
-
- if (target instanceof ICategory) {
- ICategory category = (ICategory) target;
-
- // Dragging to the "Neighborhood" category is not possible
- if (!IUIConstants.ID_CAT_NEIGHBORHOOD.equals(category.getId())) {
- boolean allow = true;
- Iterator<?> iterator = selection.iterator();
- while (iterator.hasNext()) {
- Object element = iterator.next();
- if (!isDraggableObject(element)) {
- allow = false;
- break;
- }
- if (Managers.getCategoryManager().belongsTo(category.getId(), ((IPeerModel)element).getPeerId())) {
- allow = false;
- break;
- }
- }
- valid = allow;
-
- // If the target is the "Favorites" or the "My Targets" category,
- // force DROP_LINK operation
- if ((IUIConstants.ID_CAT_FAVORITES.equals(category.getId()) || IUIConstants.ID_CAT_MY_TARGETS.equals(category.getId()))
- && (operation & DND.DROP_LINK) == 0) {
- overrideOperation = DND.DROP_LINK;
- }
- }
- } else if (target instanceof IRoot) {
- // Allow to drag into empty space either from "Favorites"
- // or "My Targets" category only
- boolean allow = true;
- Iterator<?> iterator = selection.iterator();
- while (iterator.hasNext()) {
- Object element = iterator.next();
- if (!isDraggableObject(element)) {
- allow = false;
- break;
- }
-
- // To determine the parent category, we have to look at the tree path
- TreePath[] pathes = selection instanceof TreeSelection ? ((TreeSelection)selection).getPathsFor(element) : null;
- if (pathes != null && pathes.length > 0) {
- for (TreePath path : pathes) {
- ICategory category = null;
- TreePath parentPath = path.getParentPath();
- while (parentPath != null) {
- if (parentPath.getLastSegment() instanceof ICategory) {
- category = (ICategory)parentPath.getLastSegment();
- break;
- }
- parentPath = parentPath.getParentPath();
- }
-
- if (category == null || IUIConstants.ID_CAT_NEIGHBORHOOD.equals(category.getId())) {
- allow = false;
- break;
- }
- }
- }
- }
- valid = allow;
- }
-
- if (dropAdapter != null) {
- if (!valid) {
- dropAdapter.overrideOperation(DND.DROP_NONE);
- }
- else if (overrideOperation != -1) {
- dropAdapter.overrideOperation(overrideOperation);
- }
- }
-
- return valid;
- }
-}
+/*******************************************************************************
+ * Copyright (c) 2012 Wind River Systems, Inc. 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:
+ * Wind River Systems - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.tcf.te.tcf.ui.navigator.dnd;
+
+import java.util.Iterator;
+
+import org.eclipse.jface.util.LocalSelectionTransfer;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.TreePath;
+import org.eclipse.jface.viewers.TreeSelection;
+import org.eclipse.swt.dnd.DND;
+import org.eclipse.swt.dnd.TransferData;
+import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerModel;
+import org.eclipse.tcf.te.tcf.ui.interfaces.IUIConstants;
+import org.eclipse.tcf.te.ui.views.Managers;
+import org.eclipse.tcf.te.ui.views.ViewsUtil;
+import org.eclipse.tcf.te.ui.views.interfaces.ICategory;
+import org.eclipse.tcf.te.ui.views.interfaces.IRoot;
+import org.eclipse.ui.navigator.CommonDropAdapter;
+
+/**
+ * Common DND operation implementations.
+ */
+public class CommonDnD {
+
+ /**
+ * If the current selection is draggable.
+ *
+ * @param selection The currently selected nodes.
+ * @return true if it is draggable.
+ */
+ public static boolean isDraggable(IStructuredSelection selection) {
+ if (selection.isEmpty()) {
+ return false;
+ }
+ Object[] objects = selection.toArray();
+ for (Object object : objects) {
+ if (!isDraggableObject(object)) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * If the specified object is a draggable element.
+ *
+ * @param object The object to be dragged.
+ * @return true if it is draggable.
+ */
+ private static boolean isDraggableObject(Object object) {
+ return object instanceof IPeerModel;
+ }
+
+ /**
+ * Perform the drop operation over dragged selection.
+ *
+ * @param dropAdapter The common drop adapter.
+ * @param target The target Object to be moved to.
+ * @param operations The current DnD operation.
+ * @param selection The local selection being dropped.
+ * @return true if the dropping is successful.
+ */
+ public static boolean dropLocalSelection(CommonDropAdapter dropAdapter, Object target, int operations, IStructuredSelection selection) {
+ if (target instanceof ICategory) {
+ ICategory hovered = (ICategory) target;
+ if (org.eclipse.tcf.te.ui.views.interfaces.IUIConstants.ID_CAT_FAVORITES.equals(hovered.getId())
+ || IUIConstants.ID_CAT_MY_TARGETS.equals(hovered.getId())) {
+ Iterator<?> iterator = selection.iterator();
+ while (iterator.hasNext()) {
+ Object element = iterator.next();
+ if (!isDraggableObject(element)) {
+ continue;
+ }
+ Managers.getCategoryManager().add(hovered.getId(), ((IPeerModel)element).getPeerId());
+ }
+ // Fire a refresh of the view
+ ViewsUtil.refresh(org.eclipse.tcf.te.ui.views.interfaces.IUIConstants.ID_EXPLORER);
+ }
+ } else if (target instanceof IRoot) {
+ Iterator<?> iterator = selection.iterator();
+ while (iterator.hasNext()) {
+ Object element = iterator.next();
+ if (!isDraggableObject(element)) {
+ continue;
+ }
+
+ // To determine the parent category, we have to look at the tree path
+ TreePath[] pathes = selection instanceof TreeSelection ? ((TreeSelection)selection).getPathsFor(element) : null;
+ if (pathes != null && pathes.length > 0) {
+ for (TreePath path : pathes) {
+ ICategory category = null;
+ TreePath parentPath = path.getParentPath();
+ while (parentPath != null) {
+ if (parentPath.getLastSegment() instanceof ICategory) {
+ category = (ICategory)parentPath.getLastSegment();
+ break;
+ }
+ parentPath = parentPath.getParentPath();
+ }
+
+ if (category != null) {
+ Managers.getCategoryManager().remove(category.getId(), ((IPeerModel)element).getPeerId());
+ }
+ }
+ }
+ }
+
+ // Fire a refresh of the view
+ ViewsUtil.refresh(org.eclipse.tcf.te.ui.views.interfaces.IUIConstants.ID_EXPLORER);
+ }
+
+ return false;
+ }
+
+ /**
+ * Validate dropping when the elements being dragged are local selection.
+ *
+ * @param dropAdapter The common drop adapter.
+ * @param target The target object.
+ * @param operation The DnD operation.
+ * @param transferType The transfered data type.
+ *
+ * @return true if it is valid for dropping.
+ */
+ public static boolean validateLocalSelectionDrop(CommonDropAdapter dropAdapter, Object target, int operation, TransferData transferType) {
+ int overrideOperation = -1;
+ boolean valid = false;
+
+ // The default operation should be always "DROP_MOVE"
+ if ((operation & DND.DROP_MOVE) == 0) {
+ overrideOperation = DND.DROP_MOVE;
+ }
+
+ LocalSelectionTransfer transfer = LocalSelectionTransfer.getTransfer();
+ IStructuredSelection selection = (IStructuredSelection) transfer.getSelection();
+
+ if (target instanceof ICategory) {
+ ICategory category = (ICategory) target;
+
+ // Dragging to the "Neighborhood" category is not possible
+ if (!IUIConstants.ID_CAT_NEIGHBORHOOD.equals(category.getId())) {
+ boolean allow = true;
+ Iterator<?> iterator = selection.iterator();
+ while (iterator.hasNext()) {
+ Object element = iterator.next();
+ if (!isDraggableObject(element)) {
+ allow = false;
+ break;
+ }
+ if (Managers.getCategoryManager().belongsTo(category.getId(), ((IPeerModel)element).getPeerId())) {
+ allow = false;
+ break;
+ }
+ }
+ valid = allow;
+
+ // If the target is the "Favorites" or the "My Targets" category,
+ // force DROP_LINK operation
+ if ((org.eclipse.tcf.te.ui.views.interfaces.IUIConstants.ID_CAT_FAVORITES.equals(category.getId()) || IUIConstants.ID_CAT_MY_TARGETS.equals(category.getId()))
+ && (operation & DND.DROP_LINK) == 0) {
+ overrideOperation = DND.DROP_LINK;
+ }
+ }
+ } else if (target instanceof IRoot) {
+ // Allow to drag into empty space either from "Favorites"
+ // or "My Targets" category only
+ boolean allow = true;
+ Iterator<?> iterator = selection.iterator();
+ while (iterator.hasNext()) {
+ Object element = iterator.next();
+ if (!isDraggableObject(element)) {
+ allow = false;
+ break;
+ }
+
+ // To determine the parent category, we have to look at the tree path
+ TreePath[] pathes = selection instanceof TreeSelection ? ((TreeSelection)selection).getPathsFor(element) : null;
+ if (pathes != null && pathes.length > 0) {
+ for (TreePath path : pathes) {
+ ICategory category = null;
+ TreePath parentPath = path.getParentPath();
+ while (parentPath != null) {
+ if (parentPath.getLastSegment() instanceof ICategory) {
+ category = (ICategory)parentPath.getLastSegment();
+ break;
+ }
+ parentPath = parentPath.getParentPath();
+ }
+
+ if (category == null || IUIConstants.ID_CAT_NEIGHBORHOOD.equals(category.getId())) {
+ allow = false;
+ break;
+ }
+ }
+ }
+ }
+ valid = allow;
+ }
+
+ if (dropAdapter != null) {
+ if (!valid) {
+ dropAdapter.overrideOperation(DND.DROP_NONE);
+ }
+ else if (overrideOperation != -1) {
+ dropAdapter.overrideOperation(overrideOperation);
+ }
+ }
+
+ return valid;
+ }
+}

Back to the top