/*
* Copyright 2003-2014 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 jetbrains.mps.nodeEditor;
import jetbrains.mps.editor.runtime.commands.EditorComputable;
import jetbrains.mps.nodeEditor.cells.APICellAdapter;
import jetbrains.mps.nodeEditor.keymaps.KeymapHandler;
import jetbrains.mps.openapi.editor.cells.EditorCell;
import jetbrains.mps.openapi.editor.cells.KeyMapAction;
import jetbrains.mps.util.Pair;
import java.awt.event.InputMethodEvent;
import java.awt.event.KeyEvent;
import java.util.Collection;
public class EditorComponentKeyboardHandler implements KeyboardHandler {
private final KeymapHandler<KeyEvent> myKeymapHandler;
public EditorComponentKeyboardHandler(KeymapHandler<KeyEvent> keymapHandler) {
myKeymapHandler = keymapHandler;
}
@Override
public boolean processKeyPressed(final EditorContext editorContext, final KeyEvent keyEvent) {
EditorComponent nodeEditor = editorContext.getNodeEditorComponent();
nodeEditor.hideMessageToolTip();
if (processKeyMaps(editorContext, keyEvent)) {
return true;
}
jetbrains.mps.openapi.editor.cells.CellActionType actionType = editorContext.getNodeEditorComponent().getActionType(keyEvent, editorContext);
EditorCell selectedCell = editorContext.getSelectedCell();
// process action
if (selectedCell != null && actionType != null && editorContext.getEditorComponent().getActionHandler().executeAction(selectedCell, actionType)) {
return true;
}
// special case - don't allow kbd focus to leave editor area
if (keyEvent.getKeyCode() == KeyEvent.VK_UP && keyEvent.isControlDown() && !keyEvent.isAltDown() && !keyEvent.isShiftDown()) {
keyEvent.consume();
}
return false;
}
@Override
public boolean processKeyTyped(EditorContext editorContext, final KeyEvent keyEvent) {
EditorComponent nodeEditor = editorContext.getNodeEditorComponent();
nodeEditor.hideMessageToolTip();
if (processKeyMaps(editorContext, keyEvent)) {
return true;
}
final EditorCell selectedCell = editorContext.getSelectedCell();
if (selectedCell != null && ((jetbrains.mps.nodeEditor.cells.EditorCell) selectedCell).processKeyTyped(keyEvent, false)) {
keyEvent.consume();
return true;
}
jetbrains.mps.openapi.editor.cells.CellActionType actionType = editorContext.getNodeEditorComponent().getActionType(keyEvent, editorContext);
if (selectedCell != null) {
final boolean strictMatching = jetbrains.mps.openapi.editor.cells.CellActionType.RIGHT_TRANSFORM.equals(actionType) ||
jetbrains.mps.openapi.editor.cells.CellActionType.LEFT_TRANSFORM.equals(actionType);
if (selectedCell.isErrorState() && strictMatching) {
EditorComputable<Boolean> validateCommand = new EditorComputable<Boolean>(editorContext) {
@Override
protected Boolean doCompute() {
return APICellAdapter.validate(selectedCell, true, false);
}
};
editorContext.getRepository().getModelAccess().executeCommand(validateCommand);
if (validateCommand.getResult()) {
return true;
}
}
if (actionType != null
&& !(selectedCell.isErrorState() && jetbrains.mps.openapi.editor.cells.CellActionType.RIGHT_TRANSFORM.equals(actionType))) {
if (editorContext.getEditorComponent().getActionHandler().executeAction(selectedCell, actionType)) {
return true;
}
}
}
if (selectedCell != null && ((jetbrains.mps.nodeEditor.cells.EditorCell) selectedCell).processKeyTyped(keyEvent, true)) {
keyEvent.consume();
return true;
}
return false;
}
@Override
public boolean processKeyReleased(EditorContext editorContext, KeyEvent keyEvent) {
return false;
}
private boolean processKeyMaps(EditorContext editorContext, KeyEvent keyEvent) {
EditorCell selectedCell = editorContext.getSelectedCell();
if (selectedCell == null) {
return false;
}
if (keyEvent.getID() != KeyEvent.KEY_PRESSED && keyEvent.getID() != KeyEvent.KEY_TYPED) {
// Looks like unnecessary check
return false;
}
int keyCode = keyEvent.getKeyCode();
if (keyCode == KeyEvent.VK_CONTROL || keyCode == KeyEvent.VK_ALT || keyCode == KeyEvent.VK_SHIFT ||
keyCode == KeyEvent.VK_PAGE_UP || keyCode == KeyEvent.VK_PAGE_DOWN) {
return false;
}
Collection<Pair<KeyMapAction, EditorCell>> actionCellPairs = myKeymapHandler.getActions(selectedCell, keyEvent, editorContext);
if (actionCellPairs.size() == 0) {
return false;
}
Pair<KeyMapAction, EditorCell> first = actionCellPairs.iterator().next();
if (actionCellPairs.size() == 1 && !first.o1.isMenuAlwaysShown()) {
myKeymapHandler.executeAction(first.o1, first.o2, editorContext);
} else {
// show menu
myKeymapHandler.showActionsMenu(actionCellPairs, editorContext, selectedCell);
}
return true;
}
@Override
public boolean processTextChanged(EditorContext editorContext, InputMethodEvent inputEvent) {
EditorCell selectedCell = editorContext.getSelectedCell();
return selectedCell != null && ((jetbrains.mps.nodeEditor.cells.EditorCell) selectedCell).processTextChanged(inputEvent);
}
}