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Diffstat (limited to 'propertysheet/src/org/eclipse/wb/internal/core/model/property/editor/AbstractTextPropertyEditor.java')
| -rw-r--r-- | propertysheet/src/org/eclipse/wb/internal/core/model/property/editor/AbstractTextPropertyEditor.java | 306 |
1 files changed, 0 insertions, 306 deletions
diff --git a/propertysheet/src/org/eclipse/wb/internal/core/model/property/editor/AbstractTextPropertyEditor.java b/propertysheet/src/org/eclipse/wb/internal/core/model/property/editor/AbstractTextPropertyEditor.java deleted file mode 100644 index 1cf9574..0000000 --- a/propertysheet/src/org/eclipse/wb/internal/core/model/property/editor/AbstractTextPropertyEditor.java +++ /dev/null @@ -1,306 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2011 Google, Inc. - * 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: - * Google, Inc. - initial API and implementation - *******************************************************************************/ -package org.eclipse.wb.internal.core.model.property.editor; - -import org.eclipse.jface.bindings.keys.KeyStroke; -import org.eclipse.jface.fieldassist.ContentProposalAdapter; -import org.eclipse.jface.fieldassist.IContentProposalProvider; -import org.eclipse.jface.fieldassist.IControlContentAdapter; -import org.eclipse.jface.fieldassist.TextContentAdapter; -import org.eclipse.jface.viewers.ILabelProvider; -import org.eclipse.swt.SWT; -import org.eclipse.swt.events.FocusEvent; -import org.eclipse.swt.events.FocusListener; -import org.eclipse.swt.events.KeyAdapter; -import org.eclipse.swt.events.KeyEvent; -import org.eclipse.swt.events.KeyListener; -import org.eclipse.swt.graphics.Point; -import org.eclipse.swt.graphics.Rectangle; -import org.eclipse.swt.widgets.Display; -import org.eclipse.swt.widgets.Event; -import org.eclipse.swt.widgets.Listener; -import org.eclipse.swt.widgets.Text; -import org.eclipse.wb.internal.core.model.property.Property; -import org.eclipse.wb.internal.core.model.property.table.PropertyTable; - -/** - * Abstract {@link PropertyEditor} for that uses {@link Text} as control. - * - * @author scheglov_ke - * @coverage core.model.property.editor - */ -public abstract class AbstractTextPropertyEditor extends TextDisplayPropertyEditor { - //////////////////////////////////////////////////////////////////////////// - // - // Editing - // - //////////////////////////////////////////////////////////////////////////// - private Text m_textControl; - private boolean m_ignoreFocusLost; - - // BEGIN ADT MODIFICATIONS - // ContentProposalAdapter which exposes the openProposalPopup method such - // that we can open the dialog up immediately on focus gain to show all available - // alternatives (the default implementation requires at least one keytroke before - // it shows up) - private static class ImmediateProposalAdapter extends ContentProposalAdapter { - public ImmediateProposalAdapter(Text control, - IControlContentAdapter controlContentAdapter, - IContentProposalProvider proposalProvider, KeyStroke keyStroke, - char[] autoActivationCharacters) { - super(control, controlContentAdapter, proposalProvider, keyStroke, - autoActivationCharacters); - - // On focus gain, start completing - control.addFocusListener(new FocusListener() { - @Override - public void focusGained(FocusEvent event) { - openIfNecessary(); - } - - @Override - public void focusLost(FocusEvent event) { - } - }); - - /* Triggering on empty is disabled for now: it has the unfortunate side-effect - that it's impossible to enter a blank text field - blank matches everything, - so the first item will automatically be selected when you press return. - - - // If you edit the text and delete everything, the normal implementation - // will close the popup; we'll reopen it - control.addModifyListener(new ModifyListener() { - @Override - public void modifyText(ModifyEvent event) { - if (((Text) getControl()).getText().isEmpty()) { - openIfNecessary(); - } - } - }); - */ - } - - private void openIfNecessary() { - getControl().getDisplay().asyncExec(new Runnable() { - @Override - public void run() { - if (!isProposalPopupOpen()) { - openProposalPopup(); - } - } - }); - } - } - // END ADT MODIFICATIONS - - @Override - public boolean activate(final PropertyTable propertyTable, final Property property, Point location) - throws Exception { - // create Text - { - m_textControl = new Text(propertyTable, SWT.NONE); - new TextControlActionsManager(m_textControl); - m_textControl.setEditable(isEditable()); - - // BEGIN ADT MODIFICATIONS - // Add support for field completion, if the property provides an IContentProposalProvider - // via its the getAdapter method. - IContentProposalProvider completion = property.getAdapter(IContentProposalProvider.class); - if (completion != null) { - ImmediateProposalAdapter adapter = new ImmediateProposalAdapter( - m_textControl, new TextContentAdapter(), completion, null, null); - adapter.setFilterStyle(ContentProposalAdapter.FILTER_NONE); - adapter.setProposalAcceptanceStyle(ContentProposalAdapter.PROPOSAL_REPLACE); - ILabelProvider labelProvider = property.getAdapter(ILabelProvider.class); - if (labelProvider != null) { - adapter.setLabelProvider(labelProvider); - } - } - // END ADT MODIFICATIONS - m_textControl.setFocus(); - } - // add listeners - m_textControl.addKeyListener(new KeyAdapter() { - @Override - public void keyPressed(KeyEvent e) { - try { - handleKeyPressed(propertyTable, property, e); - } catch (Throwable ex) { - propertyTable.deactivateEditor(false); - propertyTable.handleException(ex); - } - } - }); - m_textControl.addListener(SWT.FocusOut, new Listener() { - @Override - public void handleEvent(Event event) { - if (!m_ignoreFocusLost) { - propertyTable.deactivateEditor(true); - } - } - }); - // set data - toWidget(property); - // keep us active - return true; - } - - @Override - public final void setBounds(Rectangle bounds) { - m_textControl.setBounds(bounds); - } - - @Override - public final void deactivate(PropertyTable propertyTable, Property property, boolean save) { - if (save) { - try { - toProperty(property); - } catch (Throwable e) { - propertyTable.deactivateEditor(false); - propertyTable.handleException(e); - } - } - // dispose Text widget - if (m_textControl != null) { - m_textControl.dispose(); - m_textControl = null; - } - } - - @Override - public void keyDown(PropertyTable propertyTable, Property property, KeyEvent event) - throws Exception { - boolean withAlt = (event.stateMask & SWT.ALT) != 0; - boolean withCtrl = (event.stateMask & SWT.CTRL) != 0; - if (event.character != 0 && !(withAlt || withCtrl)) { - propertyTable.activateEditor(property, null); - postKeyEvent(SWT.KeyDown, event); - postKeyEvent(SWT.KeyUp, event); - } - } - - /** - * Posts low-level {@link SWT.KeyDown} or {@link SWT.KeyUp} event. - */ - private static void postKeyEvent(int type, KeyEvent event) { - Event lowEvent = new Event(); - lowEvent.type = type; - lowEvent.keyCode = event.keyCode; - lowEvent.character = event.character; - // post event - Display.getCurrent().post(lowEvent); - } - - //////////////////////////////////////////////////////////////////////////// - // - // Events - // - //////////////////////////////////////////////////////////////////////////// - /** - * Handles {@link KeyListener#keyPressed(KeyEvent)}. - */ - private void handleKeyPressed(PropertyTable propertyTable, Property property, KeyEvent e) - throws Exception { - if (e.keyCode == SWT.CR) { - toProperty(property); - - // BEGIN ADT MODIFICATIONS - // After pressing return, dismiss the text cursor to make the value "committed". - // I'm not sure why this is necessary here and not in WindowBuilder proper. - propertyTable.deactivateEditor(true); - // END ADT MODIFICATIONS - } else if (e.keyCode == SWT.ESC) { - propertyTable.deactivateEditor(false); - } else if (e.keyCode == SWT.ARROW_UP || e.keyCode == SWT.ARROW_DOWN) { - e.doit = false; - boolean success = toProperty(property); - // don't allow navigation if current text can not be transferred to property - if (!success) { - return; - } - // OK, deactivate and navigate - propertyTable.deactivateEditor(true); - propertyTable.navigate(e); - } - } - - //////////////////////////////////////////////////////////////////////////// - // - // Implementation - // - //////////////////////////////////////////////////////////////////////////// - private String m_currentText; - - /** - * Transfers data from {@link Property} to widget. - */ - private void toWidget(Property property) throws Exception { - // prepare text - String text = getEditorText(property); - if (text == null) { - text = ""; - } - // set text - m_currentText = text; - m_textControl.setText(text); - m_textControl.selectAll(); - } - - /** - * Transfers data from widget to {@link Property}. - * - * @return <code>true</code> if transfer was successful. - */ - private boolean toProperty(Property property) throws Exception { - String text = m_textControl.getText(); - // change property only if text was changed - if (!m_currentText.equals(text)) { - m_ignoreFocusLost = true; - try { - boolean success = setEditorText(property, text); - if (!success) { - return false; - } - } finally { - m_ignoreFocusLost = false; - } - // if value was successfully changed, update current text - m_currentText = text; - } - // OK, success - return true; - } - - //////////////////////////////////////////////////////////////////////////// - // - // Operations - // - //////////////////////////////////////////////////////////////////////////// - /** - * @return <code>true</code> if this editor can modify text. - */ - protected boolean isEditable() { - return true; - } - - /** - * @return the text to display in {@link Text} control. - */ - protected abstract String getEditorText(Property property) throws Exception; - - /** - * Modifies {@link Property} using given text. - * - * @return <code>true</code> if {@link Property} was successfully modified. - */ - protected abstract boolean setEditorText(Property property, String text) throws Exception; -} |