private void TextBox_KeyPressing(object sender, KeyPressEventArgs e)
{
var settings = CodeEditorExtension.Instance.Settings;
_itemEnumerator.CanYieldItems = _autoCompleteMenu.Visible || settings.GetValue <bool>("AutoCompletion.ShowSuggestionsWhenTyping");
if (_autoCompleteMenu != null && _autoCompleteMenu.Visible)
{
// auto complete when a key specified in the settings has been pressed.
if ((settings.GetValue <bool>("AutoCompletion.AutoCompleteCommitOnSpaceBar") && e.KeyChar == ' ') ||
(settings.GetValue <bool>("AutoCompletion.AutoCompleteCommitOnTab") && e.KeyChar == '\t') ||
(settings.GetValue <string>("AutoCompletion.AutoCompleteCommitChars").Contains(e.KeyChar)))
{
_autoCompleteMenu.OnSelecting();
var selectedItem = _autoCompleteMenu.Items.FocussedItem as CodeEditorAutoCompleteItem;
if (selectedItem != null)
{
// do not append space when surpressed by autocomplete item
if (e.KeyChar == ' ' && selectedItem.SurpressSpaceBar)
{
e.Handled = true;
return;
}
if (selectedItem is CodeEditorMethodAutoCompleteItem)
{
// do not append extra parantheses for methods when the paranthese key is pressed.
if (settings.GetValue <bool>("AutoCompletion.AutoCompleteMethodParantheses") && (selectedItem as CodeEditorMethodAutoCompleteItem).Parantheses[0] == e.KeyChar)
{
e.Handled = true;
return;
}
}
}
}
}
if (_autoCompletionMap is ICodeBlockCompleter && this.TextBox.SelectionStart < this.TextBox.Text.Length)
{
var styles = this.TextBox.GetStylesOfChar(this.TextBox.Selection.Start);
var blockCompleter = _autoCompletionMap as ICodeBlockCompleter;
var startIdentifiers = blockCompleter.BlockIdentifiers.Keys;
var endIdentifiers = blockCompleter.BlockIdentifiers.Values;
string currentCharAsString = this.TextBox.Text[this.TextBox.SelectionStart].ToString();
string nextCharAsString = this.TextBox.Text.Length < this.TextBox.SelectionStart ? this.TextBox.Text[this.TextBox.SelectionStart + 1].ToString() : null;
string keyCharAsString = e.KeyChar.ToString();
// do not handle ending blocks when they are already present
if (endIdentifiers.Contains(currentCharAsString) && currentCharAsString == keyCharAsString)
{
e.Handled = true;
this.TextBox.SelectionStart++;
}
// auto complete code blocks
else if (settings.GetValue <bool>("AutoCompletion.AutoCompleteCodeBlocks") && !styles.Contains(this.TextBox.SyntaxHighlighter.CommentStyle) && !styles.Contains(this.TextBox.SyntaxHighlighter.StringStyle) && startIdentifiers.Contains(keyCharAsString))
{
this.TextBox.InsertText(keyCharAsString + blockCompleter.BlockIdentifiers[keyCharAsString]);
this.TextBox.SelectionStart -= blockCompleter.BlockIdentifiers[keyCharAsString].Length;
e.Handled = true;
_justCompletedBrace = true;
}
}
}
