platform/platform-impl/src/com/intellij/ide/actions/BaseShowRecentFilesAction.java - platform/tools/idea - Git at Google

 /*
  * Copyright 2000-2009 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.ide.actions;

 import com.intellij.openapi.actionSystem.*;
 import com.intellij.openapi.editor.markup.EffectType;
 import com.intellij.openapi.editor.markup.TextAttributes;
 import com.intellij.openapi.fileEditor.FileEditorManager;
 import com.intellij.openapi.fileEditor.ex.FileEditorManagerEx;
 import com.intellij.openapi.fileEditor.ex.FileEditorProviderManager;
 import com.intellij.openapi.fileEditor.impl.EditorHistoryManager;
 import com.intellij.openapi.keymap.KeymapManager;
 import com.intellij.openapi.project.DumbAware;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.ui.popup.JBPopup;
 import com.intellij.openapi.ui.popup.PopupChooserBuilder;
 import com.intellij.openapi.util.Iconable;
 import com.intellij.openapi.vcs.FileStatus;
 import com.intellij.openapi.vcs.FileStatusManager;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.ui.ColoredListCellRenderer;
 import com.intellij.ui.Gray;
 import com.intellij.ui.LightColors;
 import com.intellij.ui.SimpleTextAttributes;
 import com.intellij.ui.components.JBList;
 import com.intellij.util.ArrayUtil;
 import com.intellij.util.Function;
 import com.intellij.util.IconUtil;

 import javax.swing.*;
 import javax.swing.event.ListSelectionEvent;
 import javax.swing.event.ListSelectionListener;
 import java.awt.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.awt.event.KeyAdapter;
 import java.awt.event.KeyEvent;
 import java.io.File;

 public abstract class BaseShowRecentFilesAction extends AnAction implements DumbAware {
   private static final Color BORDER_COLOR = Gray._135;

   public void actionPerformed(AnActionEvent e) {
     show(CommonDataKeys.PROJECT.getData(e.getDataContext()));
   }

   public void update(AnActionEvent event){
     Presentation presentation = event.getPresentation();
     Project project = CommonDataKeys.PROJECT.getData(event.getDataContext());
     presentation.setEnabled(project != null);
   }

   protected void show(final Project project){
     final DefaultListModel model = new DefaultListModel();

     FileEditorManagerEx fem = FileEditorManagerEx.getInstanceEx(project);
     VirtualFile[] selectedFiles = fem.getSelectedFiles();
     VirtualFile currentFile = fem.getCurrentFile();
     VirtualFile[] files = filesToShow(project);
     FileEditorProviderManager editorProviderManager = FileEditorProviderManager.getInstance();

     for(int i=files.length-1; i>= 0; i--){ // reverse order of files
       VirtualFile file = files[i];
       boolean isSelected = ArrayUtil.find(selectedFiles, file) >= 0;
       if((!isSelected || !file.equals(currentFile)) && editorProviderManager.getProviders(project, file).length > 0){
         // 1. do not put currently selected file
         // 2. do not include file with no corresponding editor providers
         model.addElement(file);
       }
     }

     final JLabel pathLabel = new JLabel(" ");
     pathLabel.setHorizontalAlignment(SwingConstants.RIGHT);

     if (true /*SystemInfo.isMac*/) {
       final Font font = pathLabel.getFont();
       pathLabel.setFont(font.deriveFont((float)10));
     }

     final JList list = new JBList(model);
     list.addKeyListener(
       new KeyAdapter() {
         public void keyPressed(KeyEvent e) {
           if (e.getKeyCode() == KeyEvent.VK_DELETE) {
             int index = list.getSelectedIndex();
             if (index == -1 || index >= list.getModel().getSize()){
               return;
             }
             Object[] values = list.getSelectedValues();
             for (Object value : values) {
               VirtualFile file = (VirtualFile) value;
               model.removeElement(file);
               if (model.getSize() > 0) {
                 if (model.getSize() == index) {
                   list.setSelectedIndex(model.getSize() - 1);
                 } else if (model.getSize() > index) {
                   list.setSelectedIndex(index);
                 }
               } else {
                 list.clearSelection();
               }
               EditorHistoryManager.getInstance(project).removeFile(file);
             }
           }
         }
       }
     );

     final MyListSelectionListener listSelectionListener = new MyListSelectionListener(pathLabel, list);
     list.getSelectionModel().addListSelectionListener(listSelectionListener);

     Runnable runnable = new Runnable() {
       public void run() {
         Object[] values = list.getSelectedValues();
         for (Object value : values) {
           VirtualFile file = (VirtualFile) value;
           FileEditorManager.getInstance(project).openFile(file, true, true);
         }
       }
     };

     if (list.getModel().getSize() == 0) {
       list.clearSelection();
     }

     list.setCellRenderer(new RecentFilesRenderer(project));

     /*
     TODO:
     if (model.getSize() > 0) {
       Dimension listPreferredSize = list.getPreferredSize();
       list.setVisibleRowCount(0);
       Dimension viewPreferredSize = new Dimension(listPreferredSize.width, Math.min(listPreferredSize.height, r.height - 20));
       ((JViewport)list.getParent()).setPreferredSize(viewPreferredSize);
     }
     */

     JPanel footerPanel = new JPanel(new BorderLayout()) {
       @Override
       protected void paintComponent(Graphics g) {
         super.paintComponent(g);
         g.setColor(BORDER_COLOR);
         g.drawLine(0, 0, getWidth(), 0);
       }
     };

     footerPanel.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));
     footerPanel.add(pathLabel);

     final PopupChooserBuilder builder = new PopupChooserBuilder(list)
       .setTitle(getTitle())
       .setAdText(" ")
       .setMovable(true)
       .setItemChoosenCallback(runnable)
       .setModalContext(false)
       .addAdditionalChooseKeystroke(getAdditionalSelectKeystroke())
       .setFilteringEnabled(new Function<Object, String>() {
         public String fun(Object o) {
           return o instanceof VirtualFile ? ((VirtualFile)o).getName() : "";
         }
       });
     final Shortcut[] shortcuts = KeymapManager.getInstance().getActiveKeymap().getShortcuts(getPeerActionId());
     final PeerListener listener = new PeerListener(project, getPeerActionId());
     for (Shortcut shortcut : shortcuts) {
       if (shortcut instanceof KeyboardShortcut && ((KeyboardShortcut)shortcut).getSecondKeyStroke() == null) {
         final KeyStroke keyStroke = ((KeyboardShortcut)shortcut).getFirstKeyStroke();
         builder.registerKeyboardAction(keyStroke, listener);
       }
     }
     JBPopup popup = builder.createPopup();
     listener.setPopup(popup);
     listSelectionListener.setPopup(popup);
     popup.showCenteredInCurrentWindow(project);
   }

   protected abstract String getTitle();

   protected abstract VirtualFile[] filesToShow(Project project);

   protected abstract String getPeerActionId();

   private static KeyStroke getAdditionalSelectKeystroke() {
     Shortcut[] shortcuts= KeymapManager.getInstance().getActiveKeymap().getShortcuts(IdeActions.ACTION_EDIT_SOURCE);
     for (Shortcut shortcut : shortcuts) {
       if (shortcut instanceof KeyboardShortcut) {
         return ((KeyboardShortcut) shortcut).getFirstKeyStroke();
       }
     }
     return null;
   }

   private static class RecentFilesRenderer extends ColoredListCellRenderer {
     private final Project myProject;
     public RecentFilesRenderer(Project project) {
       myProject = project;
     }

     protected void customizeCellRenderer(JList list, Object value, int index, boolean selected, boolean hasFocus) {
       if (value instanceof VirtualFile) {
         VirtualFile virtualFile = (VirtualFile)value;
         String name = virtualFile.getPresentableName();
         setIcon(IconUtil.getIcon(virtualFile, Iconable.ICON_FLAG_READ_STATUS, myProject));

         FileStatus fileStatus = FileStatusManager.getInstance(myProject).getStatus(virtualFile);
         TextAttributes attributes = new TextAttributes(fileStatus.getColor(), null , null, EffectType.LINE_UNDERSCORE,
                                                        Font.PLAIN);
         append(name, SimpleTextAttributes.fromTextAttributes(attributes));

         if (!selected && FileEditorManager.getInstance(myProject).isFileOpen(virtualFile)) {
           setBackground(LightColors.SLIGHTLY_GREEN);
         }
       }
     }
   }

   private static class PeerListener implements ActionListener {
     private final Project myProject;
     private final String myId;
     private JBPopup myPopup;

     public PeerListener(Project project, final String id) {
       myProject = project;
       myId = id;
     }

     @Override
     public void actionPerformed(ActionEvent e) {
       if (myPopup != null) {
         myPopup.cancel();
       }
       BaseShowRecentFilesAction peer = (BaseShowRecentFilesAction)ActionManager.getInstance().getAction(myId);
       peer.show(myProject);
     }

     public void setPopup(JBPopup popup) {
       myPopup = popup;
     }
   }

   private static class MyListSelectionListener implements ListSelectionListener {
     private final JLabel myPathLabel;
     private final JList myList;
     private JBPopup myPopup;

     public MyListSelectionListener(JLabel pathLabel, JList list) {
       myPathLabel = pathLabel;
       myList = list;
     }

     private String getTitle2Text(String fullText) {
       int labelWidth = myPathLabel.getWidth();
       if (fullText == null || fullText.length() == 0) return " ";
       while (myPathLabel.getFontMetrics(myPathLabel.getFont()).stringWidth(fullText) > labelWidth) {
         int sep = fullText.indexOf(File.separatorChar, 4);
         if (sep < 0) return fullText;
         fullText = "..." + fullText.substring(sep);
       }

       return fullText;
     }

     public void valueChanged(final ListSelectionEvent e) {
       //noinspection SSBasedInspection
       SwingUtilities.invokeLater(new Runnable() {
         public void run() {
           updatePathLabel();
         }
       });
     }

     private void updatePathLabel() {
       final Object[] values = myList.getSelectedValues();
       if (values != null && values.length == 1) {
         final VirtualFile parent = ((VirtualFile)values[0]).getParent();
         if (parent != null) {
           myPathLabel.setText(getTitle2Text(parent.getPresentableUrl()));
         }
         else {
           myPathLabel.setText(" ");
         }
       }
       else {
         myPathLabel.setText(" ");
       }

       if (myPopup != null) {
         myPopup.setAdText(myPathLabel.getText(), SwingUtilities.RIGHT);
       }
     }

     public void setPopup(JBPopup popup) {
       myPopup = popup;
     }
   }

 }
	/*
	* Copyright 2000-2009 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.ide.actions;

	import com.intellij.openapi.actionSystem.*;
	import com.intellij.openapi.editor.markup.EffectType;
	import com.intellij.openapi.editor.markup.TextAttributes;
	import com.intellij.openapi.fileEditor.FileEditorManager;
	import com.intellij.openapi.fileEditor.ex.FileEditorManagerEx;
	import com.intellij.openapi.fileEditor.ex.FileEditorProviderManager;
	import com.intellij.openapi.fileEditor.impl.EditorHistoryManager;
	import com.intellij.openapi.keymap.KeymapManager;
	import com.intellij.openapi.project.DumbAware;
	import com.intellij.openapi.project.Project;
	import com.intellij.openapi.ui.popup.JBPopup;
	import com.intellij.openapi.ui.popup.PopupChooserBuilder;
	import com.intellij.openapi.util.Iconable;
	import com.intellij.openapi.vcs.FileStatus;
	import com.intellij.openapi.vcs.FileStatusManager;
	import com.intellij.openapi.vfs.VirtualFile;
	import com.intellij.ui.ColoredListCellRenderer;
	import com.intellij.ui.Gray;
	import com.intellij.ui.LightColors;
	import com.intellij.ui.SimpleTextAttributes;
	import com.intellij.ui.components.JBList;
	import com.intellij.util.ArrayUtil;
	import com.intellij.util.Function;
	import com.intellij.util.IconUtil;

	import javax.swing.*;
	import javax.swing.event.ListSelectionEvent;
	import javax.swing.event.ListSelectionListener;
	import java.awt.*;
	import java.awt.event.ActionEvent;
	import java.awt.event.ActionListener;
	import java.awt.event.KeyAdapter;
	import java.awt.event.KeyEvent;
	import java.io.File;

	public abstract class BaseShowRecentFilesAction extends AnAction implements DumbAware {
	private static final Color BORDER_COLOR = Gray._135;

	public void actionPerformed(AnActionEvent e) {
	show(CommonDataKeys.PROJECT.getData(e.getDataContext()));
	}

	public void update(AnActionEvent event){
	Presentation presentation = event.getPresentation();
	Project project = CommonDataKeys.PROJECT.getData(event.getDataContext());
	presentation.setEnabled(project != null);
	}

	protected void show(final Project project){
	final DefaultListModel model = new DefaultListModel();

	FileEditorManagerEx fem = FileEditorManagerEx.getInstanceEx(project);
	VirtualFile[] selectedFiles = fem.getSelectedFiles();
	VirtualFile currentFile = fem.getCurrentFile();
	VirtualFile[] files = filesToShow(project);
	FileEditorProviderManager editorProviderManager = FileEditorProviderManager.getInstance();

	for(int i=files.length-1; i>= 0; i--){ // reverse order of files
	VirtualFile file = files[i];
	boolean isSelected = ArrayUtil.find(selectedFiles, file) >= 0;
	if((!isSelected \|\| !file.equals(currentFile)) && editorProviderManager.getProviders(project, file).length > 0){
	// 1. do not put currently selected file
	// 2. do not include file with no corresponding editor providers
	model.addElement(file);
	}
	}

	final JLabel pathLabel = new JLabel(" ");
	pathLabel.setHorizontalAlignment(SwingConstants.RIGHT);

	if (true /SystemInfo.isMac/) {
	final Font font = pathLabel.getFont();
	pathLabel.setFont(font.deriveFont((float)10));
	}

	final JList list = new JBList(model);
	list.addKeyListener(
	new KeyAdapter() {
	public void keyPressed(KeyEvent e) {
	if (e.getKeyCode() == KeyEvent.VK_DELETE) {
	int index = list.getSelectedIndex();
	if (index == -1 \|\| index >= list.getModel().getSize()){
	return;
	}
	Object[] values = list.getSelectedValues();
	for (Object value : values) {
	VirtualFile file = (VirtualFile) value;
	model.removeElement(file);
	if (model.getSize() > 0) {
	if (model.getSize() == index) {
	list.setSelectedIndex(model.getSize() - 1);
	} else if (model.getSize() > index) {
	list.setSelectedIndex(index);
	}
	} else {
	list.clearSelection();
	}
	EditorHistoryManager.getInstance(project).removeFile(file);
	}
	}
	}
	}
	);

	final MyListSelectionListener listSelectionListener = new MyListSelectionListener(pathLabel, list);
	list.getSelectionModel().addListSelectionListener(listSelectionListener);

	Runnable runnable = new Runnable() {
	public void run() {
	Object[] values = list.getSelectedValues();
	for (Object value : values) {
	VirtualFile file = (VirtualFile) value;
	FileEditorManager.getInstance(project).openFile(file, true, true);
	}
	}
	};

	if (list.getModel().getSize() == 0) {
	list.clearSelection();
	}

	list.setCellRenderer(new RecentFilesRenderer(project));

	/*
	TODO:
	if (model.getSize() > 0) {
	Dimension listPreferredSize = list.getPreferredSize();
	list.setVisibleRowCount(0);
	Dimension viewPreferredSize = new Dimension(listPreferredSize.width, Math.min(listPreferredSize.height, r.height - 20));
	((JViewport)list.getParent()).setPreferredSize(viewPreferredSize);
	}
	*/

	JPanel footerPanel = new JPanel(new BorderLayout()) {
	@Override
	protected void paintComponent(Graphics g) {
	super.paintComponent(g);
	g.setColor(BORDER_COLOR);
	g.drawLine(0, 0, getWidth(), 0);
	}
	};

	footerPanel.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));
	footerPanel.add(pathLabel);

	final PopupChooserBuilder builder = new PopupChooserBuilder(list)
	.setTitle(getTitle())
	.setAdText(" ")
	.setMovable(true)
	.setItemChoosenCallback(runnable)
	.setModalContext(false)
	.addAdditionalChooseKeystroke(getAdditionalSelectKeystroke())
	.setFilteringEnabled(new Function<Object, String>() {
	public String fun(Object o) {
	return o instanceof VirtualFile ? ((VirtualFile)o).getName() : "";
	}
	});
	final Shortcut[] shortcuts = KeymapManager.getInstance().getActiveKeymap().getShortcuts(getPeerActionId());
	final PeerListener listener = new PeerListener(project, getPeerActionId());
	for (Shortcut shortcut : shortcuts) {
	if (shortcut instanceof KeyboardShortcut && ((KeyboardShortcut)shortcut).getSecondKeyStroke() == null) {
	final KeyStroke keyStroke = ((KeyboardShortcut)shortcut).getFirstKeyStroke();
	builder.registerKeyboardAction(keyStroke, listener);
	}
	}
	JBPopup popup = builder.createPopup();
	listener.setPopup(popup);
	listSelectionListener.setPopup(popup);
	popup.showCenteredInCurrentWindow(project);
	}

	protected abstract String getTitle();

	protected abstract VirtualFile[] filesToShow(Project project);

	protected abstract String getPeerActionId();

	private static KeyStroke getAdditionalSelectKeystroke() {
	Shortcut[] shortcuts= KeymapManager.getInstance().getActiveKeymap().getShortcuts(IdeActions.ACTION_EDIT_SOURCE);
	for (Shortcut shortcut : shortcuts) {
	if (shortcut instanceof KeyboardShortcut) {
	return ((KeyboardShortcut) shortcut).getFirstKeyStroke();
	}
	}
	return null;
	}

	private static class RecentFilesRenderer extends ColoredListCellRenderer {
	private final Project myProject;
	public RecentFilesRenderer(Project project) {
	myProject = project;
	}

	protected void customizeCellRenderer(JList list, Object value, int index, boolean selected, boolean hasFocus) {
	if (value instanceof VirtualFile) {
	VirtualFile virtualFile = (VirtualFile)value;
	String name = virtualFile.getPresentableName();
	setIcon(IconUtil.getIcon(virtualFile, Iconable.ICON_FLAG_READ_STATUS, myProject));

	FileStatus fileStatus = FileStatusManager.getInstance(myProject).getStatus(virtualFile);
	TextAttributes attributes = new TextAttributes(fileStatus.getColor(), null , null, EffectType.LINE_UNDERSCORE,
	Font.PLAIN);
	append(name, SimpleTextAttributes.fromTextAttributes(attributes));

	if (!selected && FileEditorManager.getInstance(myProject).isFileOpen(virtualFile)) {
	setBackground(LightColors.SLIGHTLY_GREEN);
	}
	}
	}
	}

	private static class PeerListener implements ActionListener {
	private final Project myProject;
	private final String myId;
	private JBPopup myPopup;

	public PeerListener(Project project, final String id) {
	myProject = project;
	myId = id;
	}

	@Override
	public void actionPerformed(ActionEvent e) {
	if (myPopup != null) {
	myPopup.cancel();
	}
	BaseShowRecentFilesAction peer = (BaseShowRecentFilesAction)ActionManager.getInstance().getAction(myId);
	peer.show(myProject);
	}

	public void setPopup(JBPopup popup) {
	myPopup = popup;
	}
	}

	private static class MyListSelectionListener implements ListSelectionListener {
	private final JLabel myPathLabel;
	private final JList myList;
	private JBPopup myPopup;

	public MyListSelectionListener(JLabel pathLabel, JList list) {
	myPathLabel = pathLabel;
	myList = list;
	}

	private String getTitle2Text(String fullText) {
	int labelWidth = myPathLabel.getWidth();
	if (fullText == null \|\| fullText.length() == 0) return " ";
	while (myPathLabel.getFontMetrics(myPathLabel.getFont()).stringWidth(fullText) > labelWidth) {
	int sep = fullText.indexOf(File.separatorChar, 4);
	if (sep < 0) return fullText;
	fullText = "..." + fullText.substring(sep);
	}

	return fullText;
	}

	public void valueChanged(final ListSelectionEvent e) {
	//noinspection SSBasedInspection
	SwingUtilities.invokeLater(new Runnable() {
	public void run() {
	updatePathLabel();
	}
	});
	}

	private void updatePathLabel() {
	final Object[] values = myList.getSelectedValues();
	if (values != null && values.length == 1) {
	final VirtualFile parent = ((VirtualFile)values[0]).getParent();
	if (parent != null) {
	myPathLabel.setText(getTitle2Text(parent.getPresentableUrl()));
	}
	else {
	myPathLabel.setText(" ");
	}
	}
	else {
	myPathLabel.setText(" ");
	}

	if (myPopup != null) {
	myPopup.setAdText(myPathLabel.getText(), SwingUtilities.RIGHT);
	}
	}

	public void setPopup(JBPopup popup) {
	myPopup = popup;
	}
	}

	}