IDEA-64949 Use standard platform file chooser in 'Create patch' action invoked on patch on the shelf

platform/lvcs-impl/src/com/intellij/history/integration/ui/views/HistoryDialog.java

@@ -467,7 +467,7 @@ public abstract class HistoryDialog<T extends HistoryDialogModel> extends FrameW
         return;
       }
 
-      CreatePatchConfigurationPanel p = new CreatePatchConfigurationPanel();
+      CreatePatchConfigurationPanel p = new CreatePatchConfigurationPanel(myProject);
       p.setFileName(getDefaultPatchFile());
       if (!showAsDialog(p)) return;
       myModel.createPatch(p.getFileName(), p.isReversePatch());

platform/platform-resources-en/src/messages/VcsBundle.properties

@@ -548,3 +548,4 @@ line.annotation.aspect.author=Author
 line.annotation.aspect.date=Date
 line.annotation.aspect.revision=Revision
 annotation.commit.number=Commit number
+create.patch.file.path=&Patch file:

platform/vcs-impl/src/com/intellij/openapi/vcs/changes/patch/CreatePatchCommitExecutor.java

@@ -112,7 +112,7 @@ public class CreatePatchCommitExecutor implements CommitExecutorWithHelp, Projec
   }
 
   private class CreatePatchCommitSession implements CommitSession {
-    private final CreatePatchConfigurationPanel myPanel = new CreatePatchConfigurationPanel();
+    private final CreatePatchConfigurationPanel myPanel = new CreatePatchConfigurationPanel(myProject);
 
     @Nullable
     public JComponent getAdditionalConfigurationUI() {

platform/vcs-impl/src/com/intellij/openapi/vcs/changes/patch/CreatePatchConfigurationPanel.form

@@ -14,7 +14,7 @@
         </constraints>
         <properties>
           <labelFor value="e6922"/>
-          <text resource-bundle="messages/VcsBundle" key="create.patch.file.name.field"/>
+          <text resource-bundle="messages/VcsBundle" key="create.patch.file.path"/>
         </properties>
       </component>
       <vspacer id="86590">

platform/vcs-impl/src/com/intellij/openapi/vcs/changes/patch/CreatePatchConfigurationPanel.java

@@ -22,7 +22,17 @@
  */
 package com.intellij.openapi.vcs.changes.patch;
 
+import com.intellij.openapi.fileChooser.FileChooser;
+import com.intellij.openapi.fileChooser.FileChooserFactory;
+import com.intellij.openapi.fileChooser.FileSaverDescriptor;
+import com.intellij.openapi.fileChooser.FileSaverDialog;
+import com.intellij.openapi.project.Project;
 import com.intellij.openapi.ui.TextFieldWithBrowseButton;
+import com.intellij.openapi.util.io.FileUtil;
+import com.intellij.openapi.vfs.LocalFileSystem;
+import com.intellij.openapi.vfs.VfsUtil;
+import com.intellij.openapi.vfs.VirtualFile;
+import com.intellij.openapi.vfs.VirtualFileWrapper;
 import com.intellij.util.Consumer;
 
 import javax.swing.*;
@@ -37,15 +47,22 @@ public class CreatePatchConfigurationPanel {
   private JLabel myErrorLabel;
   private Consumer<Boolean> myOkEnabledListener;
 
-  public CreatePatchConfigurationPanel() {
+  public CreatePatchConfigurationPanel(final Project project) {
     myFileNameField.addActionListener(new ActionListener() {
       public void actionPerformed(ActionEvent e) {
-        JFileChooser fileChooser = new JFileChooser();
-        fileChooser.setSelectedFile(new File(myFileNameField.getText()));
-        if (fileChooser.showSaveDialog(myFileNameField) != JFileChooser.APPROVE_OPTION) {
-          return;
+        final FileSaverDialog dialog =
+          FileChooserFactory.getInstance().createSaveFileDialog(
+            new FileSaverDescriptor("Save patch to", ""), myPanel);
+        final String path = FileUtil.toSystemIndependentName(myFileNameField.getText().trim());
+        final int idx = path.lastIndexOf("/");
+        VirtualFile baseDir = idx == -1 ? project.getBaseDir() :
+                              (LocalFileSystem.getInstance().refreshAndFindFileByIoFile(new File(path.substring(0, idx))));
+        baseDir = baseDir == null ? project.getBaseDir() : baseDir;
+        final String name = idx == -1 ? path : path.substring(idx + 1);
+        final VirtualFileWrapper fileWrapper = dialog.save(baseDir, name);
+        if (fileWrapper != null) {
+          myFileNameField.setText(fileWrapper.getFile().getPath());
         }
-        myFileNameField.setText(fileChooser.getSelectedFile().getPath());
       }
     });
 
@@ -53,6 +70,7 @@ public class CreatePatchConfigurationPanel {
       public void inputMethodTextChanged(final InputMethodEvent event) {
         checkName();
       }
+
       public void caretPositionChanged(final InputMethodEvent event) {
       }
     });
@@ -60,9 +78,11 @@ public class CreatePatchConfigurationPanel {
       public void keyTyped(final KeyEvent e) {
         checkName();
       }
+
       public void keyPressed(final KeyEvent e) {
         checkName();
       }
+
       public void keyReleased(final KeyEvent e) {
         checkName();
       }