Initial version from the webtools project; sligthly modified for phpeclipse

[phpeclipse.git] / net.sourceforge.phpeclipse.webbrowser / src / org / eclipse / webbrowser / internal / TextAction.java

diff --git a/net.sourceforge.phpeclipse.webbrowser/src/org/eclipse/webbrowser/internal/TextAction.java b/net.sourceforge.phpeclipse.webbrowser/src/org/eclipse/webbrowser/internal/TextAction.java
new file mode 100644 (file)
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+++ b/net.sourceforge.phpeclipse.webbrowser/src/org/eclipse/webbrowser/internal/TextAction.java
@@ -0,0 +1,146 @@
+/**
+ * Copyright (c) 2003 IBM Corporation and others.
+ * All rights reserved.   This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ *    IBM - Initial API and implementation
+ */
+package org.eclipse.webbrowser.internal;
+
+import org.eclipse.swt.SWTError;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.dnd.*;
+import org.eclipse.webbrowser.internal.WebBrowser;
+import org.eclipse.jface.action.Action;
+/**
+ * Text actions (cut, copy, paste) for the Web browser.
+ */
+public class TextAction extends Action {
+       protected WebBrowser browser;
+       protected byte type;
+
+       public static final byte CUT = 0;
+       public static final byte COPY = 1;
+       public static final byte PASTE = 2;
+       
+       /**
+        * TextAction constructor comment.
+        */
+       protected TextAction(WebBrowser browser, byte type) {
+               super(type + "!");
+               this.browser = browser;
+               this.type = type;
+       }
+       
+       /**
+        * Copies the selected text to the clipboard.  The text will be put in the 
+        * clipboard in plain text format.
+        * <p>
+        *
+        * @exception SWTException <ul>
+        *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+        *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+        * </ul>
+        */
+       public void copy() {
+               Point selection = browser.combo.getSelection();
+       
+               int length = selection.y - selection.x;
+               if (length > 0) {
+                       TextTransfer plainTextTransfer = TextTransfer.getInstance();
+                       try {
+                               browser.clipboard.setContents(
+                                       new String[] { browser.combo.getText().substring(selection.x, selection.y) }, 
+                                       new Transfer[] { plainTextTransfer });
+                       } catch (SWTError error) {
+                               // Copy to clipboard failed. This happens when another application 
+                               // is accessing the clipboard while we copy. Ignore the error.
+                               // Fixes 1GDQAVN
+                       }
+               }
+       }
+       
+       /**
+        * Moves the selected text to the clipboard.  The text will be put in the 
+        * clipboard in plain text format and RTF format.
+        * <p>
+        *
+        * @exception SWTException <ul>
+        *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+        *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+        * </ul>
+        */
+       public void cut(){
+               Point selection = browser.combo.getSelection();
+       
+               if (selection.y > selection.x) {
+                       copy();
+                       delete();
+               }
+       }
+       
+       /**
+        * Deletes the character to the right of the caret. Delete the selected text if any.
+        */
+       public void delete() {
+               Point selection = browser.combo.getSelection();
+               String text = browser.combo.getText();
+       
+               if (selection.x != selection.y) {
+                       text = text.substring(0, selection.x) + text.substring(selection.y);
+                       browser.combo.setText(text);
+                       browser.combo.setSelection(new Point(selection.x, selection.x));
+               }
+       }
+       
+       /** 
+        * Replaces the selection with the clipboard text or insert the text at 
+        * the current caret offset if there is no selection. 
+        * If the widget has the SWT.SINGLE style and the clipboard text contains
+        * more than one line, only the first line without line delimiters is 
+        * inserted in the widget.
+        * <p>
+        *
+        * @exception SWTException <ul>
+        *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+        *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+        * </ul>
+        */
+       public void paste() {
+               TextTransfer transfer = TextTransfer.getInstance();
+               Point selection = browser.combo.getSelection();
+               String text = browser.combo.getText();
+               
+               String newText = (String) browser.clipboard.getContents(transfer);
+               if (newText != null && newText.length() > 0) {
+                       text = text.substring(0, selection.x) + newText + text.substring(selection.y);
+                       browser.combo.setText(text);
+       
+                       // set the selection to the end of the paste
+                       int x = selection.x + newText.length();
+                       browser.combo.setSelection(new Point(x, x));
+               }
+       }
+       
+       /**
+        * Implementation of method defined on <code>IAction</code>.
+        */
+       public void run() {
+               if (browser == null || browser.combo == null)
+                       return;
+               if (type == CUT)
+                       cut();
+               else if (type == COPY)
+                       copy();
+               else if (type == PASTE)
+                       paste();
+       }
+       
+       /**
+        * 
+        */
+       protected void update() {       }
+}
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