Bug 216706 [Viewers] Disable 'check for expiration of doubleClickTime' in TreeViewer and TableViewer
I use the TextCellEditor within the TreeViewer and TableViewer. When clicking on a cell to edit it the full text is selected (on win and gtk at least). At this point if I immediately click again (to position the cursor at a specific point within the text) the edit is cancelled. If I wait a bit before clicking again then the cursor is repositioned as expected. You could reproduce it by using the Tasks view. I guess the following code in TreeViewerImpl and TableViewerImpl is responsible for this behaviour: -------------------- snip -------------------------- private void activateCellEditor() { ... mouseListener = new MouseAdapter() { public void mouseDown(MouseEvent e) { // time wrap? // check for expiration of doubleClickTime if (e.time <= doubleClickExpirationTime) { control.removeMouseListener(mouseListener); cancelEditing(); handleDoubleClickEvent(); } else if (mouseListener != null) { control.removeMouseListener(mouseListener); } } }; control.addMouseListener(mouseListener); ... } -------------------- snap -------------------------- So clicking the second time within the doubleClickExpirationTime cancels editing. Is it possible to add a flag to disable this behaviour, or to remove it completely?
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ColumnViewerEditor.java
if (editorActivationListener != null
							&& !editorActivationListener.isEmpty()) {
						Object[] ls = editorActivationListener.getListeners();
						for (int i = 0; i < ls.length; i++) {
							((ColumnViewerEditorActivationListener) ls[i])
									.afterEditorDeactivated(tmp);
						}
					}
					this.cellEditor = null;
					this.cell = null;
				}
			} finally {
				inEditorDeactivation = false;
			}
		}
	}
	/**
	 * Enable the editor by mouse down
	 *
	 * @param event
	 */
	void handleEditorActivationEvent(ColumnViewerEditorActivationEvent event) {
		
		if (!event.cancel
				&& editorActivationStrategy.isEditorActivationEvent(event)) {
			if (cellEditor != null) {
				applyEditorValue();
			}
			this.cell = (ViewerCell) event.getSource();
			activateCellEditor(event);