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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.openapi.fileEditor.impl.text;
import com.intellij.codeInsight.TargetElementUtilBase;
import com.intellij.ide.IdeView;
import com.intellij.ide.util.EditorHelper;
import com.intellij.injected.editor.EditorWindow;
import com.intellij.injected.editor.InjectedCaret;
import com.intellij.lang.Language;
import com.intellij.openapi.editor.Caret;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.ex.EditorEx;
import com.intellij.openapi.fileEditor.EditorDataProvider;
import com.intellij.openapi.project.IndexNotReadyException;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.wm.ToolWindowManager;
import com.intellij.psi.*;
import com.intellij.psi.impl.source.tree.injected.InjectedLanguageUtil;
import com.intellij.psi.util.PsiUtilCore;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.LinkedHashSet;
import static com.intellij.openapi.actionSystem.AnActionEvent.injectedId;
import static com.intellij.openapi.actionSystem.LangDataKeys.*;
import static com.intellij.util.containers.ContainerUtil.addIfNotNull;
public class TextEditorPsiDataProvider implements EditorDataProvider {
@Override
@Nullable
public Object getData(@NotNull final String dataId, @NotNull final Editor e, @NotNull final Caret caret) {
if (!(e instanceof EditorEx)) {
return null;
}
VirtualFile file = ((EditorEx)e).getVirtualFile();
if (file == null || !file.isValid()) return null;
Project project = e.getProject();
if (dataId.equals(injectedId(EDITOR.getName()))) {
if (project == null || PsiDocumentManager.getInstance(project).isUncommited(e.getDocument())) {
return e;
}
else {
return InjectedLanguageUtil.getEditorForInjectedLanguageNoCommit(e, caret, getPsiFile(e, file));
}
}
if (HOST_EDITOR.is(dataId)) {
return e instanceof EditorWindow ? ((EditorWindow)e).getDelegate() : e;
}
if (CARET.is(dataId)) {
return caret;
}
if (dataId.equals(injectedId(CARET.getName()))) {
Editor editor = (Editor)getData(injectedId(EDITOR.getName()), e, caret);
assert editor != null;
return getInjectedCaret(editor, caret);
}
if (dataId.equals(injectedId(PSI_ELEMENT.getName()))) {
Editor editor = (Editor)getData(injectedId(EDITOR.getName()), e, caret);
assert editor != null;
Caret injectedCaret = getInjectedCaret(editor, caret);
return getPsiElementIn(editor, injectedCaret, file);
}
if (PSI_ELEMENT.is(dataId)){
return getPsiElementIn(e, caret, file);
}
if (dataId.equals(injectedId(LANGUAGE.getName()))) {
PsiFile psiFile = (PsiFile)getData(injectedId(PSI_FILE.getName()), e, caret);
Editor editor = (Editor)getData(injectedId(EDITOR.getName()), e, caret);
if (psiFile == null || editor == null) return null;
Caret injectedCaret = getInjectedCaret(editor, caret);
return getLanguageAtCurrentPositionInEditor(injectedCaret, psiFile);
}
if (LANGUAGE.is(dataId)) {
final PsiFile psiFile = getPsiFile(e, file);
if (psiFile == null) return null;
return getLanguageAtCurrentPositionInEditor(caret, psiFile);
}
if (dataId.equals(injectedId(VIRTUAL_FILE.getName()))) {
PsiFile psiFile = (PsiFile)getData(injectedId(PSI_FILE.getName()), e, caret);
if (psiFile == null) return null;
return psiFile.getVirtualFile();
}
if (dataId.equals(injectedId(PSI_FILE.getName()))) {
Editor editor = (Editor)getData(injectedId(EDITOR.getName()), e, caret);
if (editor == null) {
return null;
}
if (project == null) {
return null;
}
return PsiDocumentManager.getInstance(project).getPsiFile(editor.getDocument());
}
if (PSI_FILE.is(dataId)) {
return getPsiFile(e, file);
}
if (IDE_VIEW.is(dataId)) {
final PsiFile psiFile = project == null ? null : PsiManager.getInstance(project).findFile(file);
final PsiDirectory psiDirectory = psiFile != null ? psiFile.getParent() : null;
if (psiDirectory != null && psiDirectory.isPhysical()) {
return new IdeView() {
@Override
public void selectElement(final PsiElement element) {
Editor editor = EditorHelper.openInEditor(element);
if (editor != null) {
ToolWindowManager.getInstance(element.getProject()).activateEditorComponent();
}
}
@NotNull
@Override
public PsiDirectory[] getDirectories() {
return new PsiDirectory[]{psiDirectory};
}
@Override
public PsiDirectory getOrChooseDirectory() {
return psiDirectory;
}
};
}
}
if (CONTEXT_LANGUAGES.is(dataId)) {
return computeLanguages(e, caret);
}
return null;
}
@NotNull
private static Caret getInjectedCaret(@NotNull Editor editor, @NotNull Caret hostCaret) {
if (!(editor instanceof EditorWindow) || hostCaret instanceof InjectedCaret) {
return hostCaret;
}
for (Caret caret : editor.getCaretModel().getAllCarets()) {
if (((InjectedCaret)caret).getDelegate() == hostCaret) {
return caret;
}
}
throw new IllegalArgumentException("Cannot find injected caret corresponding to " + hostCaret);
}
private static Language getLanguageAtCurrentPositionInEditor(Caret caret, final PsiFile psiFile) {
int caretOffset = caret.getOffset();
int mostProbablyCorrectLanguageOffset = caretOffset == caret.getSelectionStart() ||
caretOffset == caret.getSelectionEnd()
? caret.getSelectionStart()
: caretOffset;
if (caret.hasSelection()) {
return getLanguageAtOffset(psiFile, mostProbablyCorrectLanguageOffset, caret.getSelectionEnd());
}
return PsiUtilCore.getLanguageAtOffset(psiFile, mostProbablyCorrectLanguageOffset);
}
private static Language getLanguageAtOffset(PsiFile psiFile, int mostProbablyCorrectLanguageOffset, int end) {
final PsiElement elt = psiFile.findElementAt(mostProbablyCorrectLanguageOffset);
if (elt == null) return psiFile.getLanguage();
if (elt instanceof PsiWhiteSpace) {
final int incremented = elt.getTextRange().getEndOffset() + 1;
if (incremented <= end) {
return getLanguageAtOffset(psiFile, incremented, end);
}
}
return PsiUtilCore.findLanguageFromElement(elt);
}
@Nullable
private static PsiElement getPsiElementIn(@NotNull Editor editor, @NotNull Caret caret, @NotNull VirtualFile file) {
final PsiFile psiFile = getPsiFile(editor, file);
if (psiFile == null) return null;
try {
TargetElementUtilBase util = TargetElementUtilBase.getInstance();
return util.findTargetElement(editor, util.getReferenceSearchFlags(), caret.getOffset());
}
catch (IndexNotReadyException e) {
return null;
}
}
@Nullable
private static PsiFile getPsiFile(@NotNull Editor e, @NotNull VirtualFile file) {
if (!file.isValid()) {
return null; // fix for SCR 40329
}
final Project project = e.getProject();
if (project == null) {
return null;
}
PsiFile psiFile = PsiManager.getInstance(project).findFile(file);
return psiFile != null && psiFile.isValid() ? psiFile : null;
}
private Language[] computeLanguages(@NotNull Editor editor, @NotNull Caret caret) {
LinkedHashSet<Language> set = new LinkedHashSet<Language>(4);
Language injectedLanguage = (Language)getData(injectedId(LANGUAGE.getName()), editor, caret);
addIfNotNull(injectedLanguage, set);
Language language = (Language)getData(LANGUAGE.getName(), editor, caret);
addIfNotNull(language, set);
PsiFile psiFile = (PsiFile)getData(PSI_FILE.getName(), editor, caret);
if (psiFile != null) {
addIfNotNull(psiFile.getViewProvider().getBaseLanguage(), set);
}
return set.toArray(new Language[set.size()]);
}
}
|
