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//
// CompletionListWindow.cs
//
// Author:
// Mike Krüger <mkrueger@novell.com>
//
// Copyright (c) 2009 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using MonoDevelop.Core;
using MonoDevelop.Ide.Gui.Content;
using MonoDevelop.Ide.Editor.Extension;
namespace MonoDevelop.Ide.CodeCompletion
{
public class CompletionWindowManager
{
static CompletionListWindow wnd;
static bool isShowing;
public static bool IsVisible {
get {
return isShowing || wnd != null && wnd.Visible;
}
}
public static CompletionListWindow Wnd {
get { return wnd; }
}
public static int X {
get {
return wnd.X;
}
}
public static int Y {
get {
return wnd.Y;
}
}
public static CodeCompletionContext CodeCompletionContext {
get {
return wnd.CodeCompletionContext;
}
}
static CompletionWindowManager ()
{
if (IdeApp.Workbench != null)
IdeApp.Workbench.RootWindow.Destroyed += (sender, e) => DestroyWindow ();
IdeApp.Preferences.ForceSuggestionMode.Changed += (s,a) => {
if (wnd != null)
wnd.AutoCompleteEmptyMatch = wnd.AutoSelect = !IdeApp.Preferences.ForceSuggestionMode;
};
}
// ext may be null, but then parameter completion don't work
internal static bool ShowWindow (CompletionTextEditorExtension ext, char firstChar, ICompletionDataList list, ICompletionWidget completionWidget, CodeCompletionContext completionContext)
{
PrepareShowWindow (ext, firstChar, completionWidget, completionContext);
return ShowWindow (list, completionContext);
}
// ext may be null, but then parameter completion don't work
internal static void PrepareShowWindow (CompletionTextEditorExtension ext, char firstChar, ICompletionWidget completionWidget, CodeCompletionContext completionContext)
{
isShowing = true;
if (wnd == null) {
wnd = new CompletionListWindow ();
wnd.WordCompleted += HandleWndWordCompleted;
}
if (ext != null) {
var widget = ext.Editor.GetNativeWidget<Gtk.Widget> ();
wnd.TransientFor = widget?.Parent?.Toplevel as Gtk.Window;
} else {
var widget = completionWidget as Gtk.Widget;
if (widget != null) {
var window = widget.Toplevel as Gtk.Window;
if (window != null)
wnd.TransientFor = window;
}
}
wnd.Extension = ext;
wnd.InitializeListWindow (completionWidget, completionContext);
}
internal static bool ShowWindow (ICompletionDataList list, CodeCompletionContext completionContext)
{
if (wnd == null || !isShowing)
throw new InvalidOperationException ("PrepareShowWindow not called");
var completionWidget = wnd.CompletionWidget;
var ext = wnd.Extension;
try {
try {
isShowing = false;
if (!wnd.ShowListWindow (list, completionContext)) {
if (list is IDisposable)
((IDisposable)list).Dispose ();
HideWindow ();
return false;
}
if (IdeApp.Preferences.ForceSuggestionMode)
wnd.AutoSelect = false;
wnd.Show ();
DesktopService.RemoveWindowShadow (wnd);
OnWindowShown (EventArgs.Empty);
return true;
} catch (Exception ex) {
LoggingService.LogError (ex.ToString ());
return false;
}
} finally {
ParameterInformationWindowManager.UpdateWindow (ext, completionWidget);
}
}
static void HandleWndWordCompleted (object sender, CodeCompletionContextEventArgs e)
{
EventHandler<CodeCompletionContextEventArgs> handler = WordCompleted;
if (handler != null)
handler (sender, e);
}
public static event EventHandler<CodeCompletionContextEventArgs> WordCompleted;
static void DestroyWindow ()
{
if (wnd != null) {
wnd.Destroy ();
wnd = null;
}
OnWindowClosed (EventArgs.Empty);
}
public static bool PreProcessKeyEvent (KeyDescriptor descriptor)
{
if (!IsVisible)
return false;
if (descriptor.KeyChar != '\0') {
wnd.EndOffset = wnd.StartOffset + wnd.CurrentPartialWord.Length + 1;
}
return wnd.PreProcessKeyEvent (descriptor);
}
public static void UpdateCursorPosition ()
{
if (!IsVisible)
return;
if (wnd.IsInCompletion)
return;
var caretOffset = wnd.CompletionWidget.CaretOffset;
if (caretOffset < wnd.StartOffset || caretOffset > wnd.EndOffset)
HideWindow ();
}
public static void UpdateWordSelection (string text)
{
if (IsVisible) {
wnd.List.CompletionString = text;
wnd.UpdateWordSelection ();
}
}
public static void PostProcessKeyEvent (KeyDescriptor descriptor)
{
if (!IsVisible)
return;
wnd.PostProcessKeyEvent (descriptor);
}
public static void RepositionWindow ()
{
if (!IsVisible)
return;
wnd.RepositionWindow ();
}
public static void HideWindow ()
{
if (!IsVisible)
return;
isShowing = false;
if (wnd == null)
return;
ParameterInformationWindowManager.UpdateWindow (wnd.Extension, wnd.CompletionWidget);
wnd.HideWindow ();
OnWindowClosed (EventArgs.Empty);
//DestroyWindow ();
}
static void OnWindowClosed (EventArgs e)
{
var handler = WindowClosed;
if (handler != null)
handler (null, e);
}
public static event EventHandler WindowClosed;
static void OnWindowShown (EventArgs e)
{
var handler = WindowShown;
if (handler != null)
handler (null, e);
}
public static event EventHandler WindowShown;
}
}
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