blob: 168a4877f9b0da42e2bad65a324f980e947b24c7 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
/*****************************************************************************
* Copyright (c) 2015 Christian W. Damus 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:
* Christian W. Damus - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.core.sasheditor.di.contentprovider.commands;
import java.util.Collection;
import java.util.Collections;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.papyrus.infra.core.sasheditor.di.contentprovider.utils.IPageUtils;
import org.eclipse.papyrus.infra.core.sasheditor.editor.IComponentPage;
import org.eclipse.papyrus.infra.core.sasheditor.editor.IEditorPage;
import org.eclipse.papyrus.infra.core.sasheditor.editor.IPage;
import org.eclipse.papyrus.infra.core.sasheditor.editor.IPageVisitor;
import org.eclipse.papyrus.infra.core.sasheditor.editor.ISashWindowsContainer;
import org.eclipse.papyrus.infra.core.sashwindows.di.service.IPageManager;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.ISources;
import org.eclipse.ui.handlers.HandlerUtil;
/**
* A convenient aggregation of objects needed for processing page management commands
* in the context of the Papyrus multi-diagram editor.
*/
class PageContext {
final IEditorPart editor;
final IPageManager pageManager;
final ISashWindowsContainer sashContainer;
final Object currentPageIdentifier;
final IPage currentPage;
PageContext(ExecutionEvent event) {
this(HandlerUtil.getActiveEditor(event));
}
PageContext(Object evaluationContext) {
this((IEditorPart) HandlerUtil.getVariable(evaluationContext, ISources.ACTIVE_EDITOR_NAME));
}
PageContext(IEditorPart activeEditor) {
super();
editor = activeEditor;
sashContainer = (activeEditor == null) ? null : activeEditor.getAdapter(ISashWindowsContainer.class);
if ((sashContainer == null) || sashContainer.isDisposed()) {
pageManager = null;
currentPage = null;
currentPageIdentifier = null;
} else {
pageManager = activeEditor.getAdapter(IPageManager.class);
currentPage = sashContainer.getActiveSashWindowsPage();
currentPageIdentifier = (currentPage == null) ? null : IPageUtils.getRawModel(currentPage);
}
}
boolean isValid() {
return (pageManager != null) && (currentPageIdentifier != null) && (sashContainer != null);
}
int getOpenPageCount() {
return getOpenPages().size();
}
Collection<IPage> getOpenPages() {
Collection<IPage> result;
if (!isValid()) {
result = Collections.emptyList();
} else {
result = new java.util.ArrayList<>();
sashContainer.visit(new IPageVisitor() {
@Override
public void accept(IEditorPage page) {
result.add(page);
}
@Override
public void accept(IComponentPage page) {
result.add(page);
}
});
}
return result;
}
}
|
