Bug 271339 [FieldAssist] Add CC text field content assist doesn't work as expected when narrowing suggestions
Continued typing in the text field should narrow the list of results displayed in the suggest list. On Carbon, this is how it works: # Open any Bugzilla bug in the Mylyn task editor # position the caret in the 'Add CC' field # press CTRL+Space # observe suggested values # start typing (slowly) 'dg' # notice that with each successive character the list is narrowed to fewer matching results # start typing backspace (slowly) to delete the characters in the text field # notice that the list is expanded to show additional matching results as the characters are deleted On Cocoa, typing in the text field after the suggest list is displayed causes the suggest list to go away.
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
/**
	 * Flag that controls the printing of debug info.
	 */
	public static final boolean DEBUG = false;
	/**
	 * Indicates that a chosen proposal should be inserted into the field.
	 */
	public static final int PROPOSAL_INSERT = 1;
	/**
	 * Indicates that a chosen proposal should replace the entire contents of
	 * the field.
	 */
	public static final int PROPOSAL_REPLACE = 2;
	/**
	 * Indicates that the contents of the control should not be modified when a
	 * proposal is chosen. This is typically used when a client needs more
	 * specialized behavior when a proposal is chosen. In this case, clients
	 * typically register an IContentProposalListener so that they are notified
	 * when a proposal is chosen.
	 */
	public static final int PROPOSAL_IGNORE = 3;
	/**
	 * Indicates that there should be no filter applied as keys are typed in the
	 * popup.
	 */
	public static final int FILTER_NONE = 1;
	/**
	 * Indicates that a single character filter applies as keys are typed in the
	 * popup.
	 */