internal void Deactivate()
{
bool redrawbar = (keynav_state != KeyNavState.Idle) && (TopMenu is MainMenu);
active = false;
popup_active = false;
hotkey_active = false;
if (GrabControl != null)
{
GrabControl.ActiveTracker = null;
}
keynav_state = KeyNavState.Idle;
if (TopMenu is ContextMenu)
{
PopUpWindow puw = TopMenu.Wnd as PopUpWindow;
DeselectItem(TopMenu.SelectedItem);
if (puw != null)
{
puw.HideWindow();
}
}
else
{
DeselectItem(TopMenu.SelectedItem);
}
CurrentMenu = TopMenu;
if (redrawbar)
{
(TopMenu as MainMenu).Draw();
}
}
void ProcessMenuKey(Msg msg_type)
{
if (TopMenu.MenuItems.Count == 0)
{
return;
}
MainMenu main_menu = TopMenu as MainMenu;
switch (msg_type)
{
case Msg.WM_SYSKEYDOWN:
switch (keynav_state)
{
case KeyNavState.Idle:
keynav_state = KeyNavState.Startup;
hotkey_active = true;
GrabControl.ActiveTracker = this;
CurrentMenu = TopMenu;
main_menu.Draw();
break;
case KeyNavState.Startup:
break;
default:
Deactivate();
main_menu.Draw();
break;
}
break;
case Msg.WM_SYSKEYUP:
switch (keynav_state)
{
case KeyNavState.Idle:
case KeyNavState.Navigating:
break;
case KeyNavState.Startup:
keynav_state = KeyNavState.NoPopups;
SelectItem(TopMenu, TopMenu.MenuItems [0], false);
break;
default:
Deactivate();
main_menu.Draw();
break;
}
break;
}
}
bool ProcessMnemonic(Message msg, Keys key_data)
{
keynav_state = KeyNavState.Navigating;
MenuItem item = FindItemByKey(CurrentMenu, msg.WParam);
if ((item == null) || (GrabControl == null) || (GrabControl.ActiveTracker == null))
{
return(false);
}
active = true;
GrabControl.ActiveTracker = this;
SelectItem(CurrentMenu, item, true);
if (item.IsPopup)
{
CurrentMenu = item;
SelectItem(item, item.MenuItems [0], false);
}
return(true);
}
public bool ProcessKeys(ref Message msg, Keys keyData)
{
// We should process Alt+key only if we don't have an active menu,
// and hide it otherwise.
if ((keyData & Keys.Alt) == Keys.Alt && active)
{
Deactivate();
return(false);
}
// If we get Alt-F4, Windows will ignore it because we have a capture,
// release the capture and the program will exit. (X11 doesn't care.)
if ((keyData & Keys.Alt) == Keys.Alt && (keyData & Keys.F4) == Keys.F4)
{
if (GrabControl != null)
{
GrabControl.ActiveTracker = null;
}
return(false);
}
if ((Msg)msg.Msg != Msg.WM_SYSKEYUP && ProcessShortcut(keyData))
{
return(true);
}
else if ((keyData & Keys.KeyCode) == Keys.Menu && TopMenu is MainMenu)
{
ProcessMenuKey((Msg)msg.Msg);
return(true);
}
else if ((keyData & Keys.Alt) == Keys.Alt)
{
return(ProcessMnemonic(msg, keyData));
}
else if ((Msg)msg.Msg == Msg.WM_SYSKEYUP)
{
return(false);
}
else if (!Navigating)
{
return(false);
}
MenuItem item;
switch (keyData)
{
case Keys.Up:
if (CurrentMenu is MainMenu)
{
return(true);
}
else if (CurrentMenu.MenuItems.Count == 1 && CurrentMenu.parent_menu == TopMenu)
{
DeselectItem(CurrentMenu.SelectedItem);
CurrentMenu = TopMenu;
return(true);
}
item = GetNextItem(CurrentMenu, ItemNavigation.Previous);
if (item != null)
{
SelectItem(CurrentMenu, item, false);
}
break;
case Keys.Down:
if (CurrentMenu is MainMenu)
{
if (CurrentMenu.SelectedItem != null && CurrentMenu.SelectedItem.IsPopup)
{
keynav_state = KeyNavState.Navigating;
item = CurrentMenu.SelectedItem;
ShowSubPopup(CurrentMenu, item);
SelectItem(item, item.MenuItems [0], false);
CurrentMenu = item;
active = true;
GrabControl.ActiveTracker = this;
}
return(true);
}
item = GetNextItem(CurrentMenu, ItemNavigation.Next);
if (item != null)
{
SelectItem(CurrentMenu, item, false);
}
break;
case Keys.Right:
if (CurrentMenu is MainMenu)
{
item = GetNextItem(CurrentMenu, ItemNavigation.Next);
bool popup = item.IsPopup && keynav_state != KeyNavState.NoPopups;
SelectItem(CurrentMenu, item, popup);
if (popup)
{
SelectItem(item, item.MenuItems [0], false);
CurrentMenu = item;
}
}
else if (CurrentMenu.SelectedItem != null && CurrentMenu.SelectedItem.IsPopup)
{
item = CurrentMenu.SelectedItem;
ShowSubPopup(CurrentMenu, item);
SelectItem(item, item.MenuItems [0], false);
CurrentMenu = item;
}
else
{
//Search up for a main menu
Menu Prnt = CurrentMenu.parent_menu;
while (Prnt != null && !(Prnt is MainMenu))
{
Prnt = Prnt.parent_menu;
}
if (Prnt is MainMenu)
{
item = GetNextItem(Prnt, ItemNavigation.Next);
SelectItem(Prnt, item, item.IsPopup);
if (item.IsPopup)
{
SelectItem(item, item.MenuItems[0], false);
CurrentMenu = item;
}
}
}
break;
case Keys.Left:
if (CurrentMenu is MainMenu)
{
item = GetNextItem(CurrentMenu, ItemNavigation.Previous);
bool popup = item.IsPopup && keynav_state != KeyNavState.NoPopups;
SelectItem(CurrentMenu, item, popup);
if (popup)
{
SelectItem(item, item.MenuItems [0], false);
CurrentMenu = item;
}
}
else if (CurrentMenu.parent_menu is MainMenu)
{
item = GetNextItem(CurrentMenu.parent_menu, ItemNavigation.Previous);
SelectItem(CurrentMenu.parent_menu, item, item.IsPopup);
if (item.IsPopup)
{
SelectItem(item, item.MenuItems [0], false);
CurrentMenu = item;
}
}
else if (!(CurrentMenu is ContextMenu)) // ContextMenu root remains active.
{
HideSubPopups(CurrentMenu, TopMenu);
if (CurrentMenu.parent_menu != null)
{
CurrentMenu = CurrentMenu.parent_menu;
}
}
break;
case Keys.Return:
if (CurrentMenu.SelectedItem != null && CurrentMenu.SelectedItem.IsPopup)
{
keynav_state = KeyNavState.Navigating;
item = CurrentMenu.SelectedItem;
ShowSubPopup(CurrentMenu, item);
SelectItem(item, item.MenuItems [0], false);
CurrentMenu = item;
active = true;
GrabControl.ActiveTracker = this;
}
else
{
ExecFocusedItem(CurrentMenu, CurrentMenu.SelectedItem);
}
break;
case Keys.Escape:
Deactivate();
break;
default:
ProcessMnemonic(msg, keyData);
break;
}
return(active);
}
// UIA Framework Note: Used to select MenuItems
public void OnMotion(MouseEventArgs args)
{
// Windows helpfully sends us MOUSEMOVE messages when any key is pressed.
// So if the mouse hasn't actually moved since the last MOUSEMOVE, ignore it.
if (args.Location == last_motion)
{
return;
}
last_motion = args.Location;
MenuItem item = GetItemAtXY(args.X, args.Y);
UpdateCursor();
if (CurrentMenu.SelectedItem == item)
{
return;
}
GrabControl.ActiveTracker = (active || item != null) ? this : null;
if (item == null)
{
MenuItem old_item = CurrentMenu.SelectedItem;
// Return when is a popup with visible subitems for MainMenu
if ((active && old_item.VisibleItems && old_item.IsPopup && (CurrentMenu is MainMenu)))
{
return;
}
// Also returns when keyboard navigating
if (keynav_state == KeyNavState.Navigating)
{
return;
}
// Select parent menu when move outside of menu item
if (old_item.Parent is MenuItem)
{
MenuItem new_item = (old_item.Parent as MenuItem);
if (new_item.IsPopup)
{
SelectItem(new_item.Parent, new_item, false);
return;
}
}
if (CurrentMenu != TopMenu)
{
CurrentMenu = CurrentMenu.parent_menu;
}
DeselectItem(old_item);
}
else
{
keynav_state = KeyNavState.Idle;
SelectItem(item.Parent, item, active && item.IsPopup && popup_active && (CurrentMenu.SelectedItem != item));
}
}
internal void Deactivate ()
{
bool redrawbar = (keynav_state != KeyNavState.Idle) && (TopMenu is MainMenu);
active = false;
popup_active = false;
hotkey_active = false;
if (GrabControl != null)
GrabControl.ActiveTracker = null;
keynav_state = KeyNavState.Idle;
if (TopMenu is ContextMenu) {
PopUpWindow puw = TopMenu.Wnd as PopUpWindow;
DeselectItem (TopMenu.SelectedItem);
if (puw != null)
puw.HideWindow ();
} else {
DeselectItem (TopMenu.SelectedItem);
}
CurrentMenu = TopMenu;
if (redrawbar)
(TopMenu as MainMenu).Draw ();
}
public bool ProcessKeys (ref Message msg, Keys keyData)
{
// We should process Alt+key only if we don't have an active menu,
// and hide it otherwise.
if ((keyData & Keys.Alt) == Keys.Alt && active) {
Deactivate ();
return false;
}
// If we get Alt-F4, Windows will ignore it because we have a capture,
// release the capture and the program will exit. (X11 doesn't care.)
if ((keyData & Keys.Alt) == Keys.Alt && (keyData & Keys.F4) == Keys.F4) {
if (GrabControl != null)
GrabControl.ActiveTracker = null;
return false;
}
if ((Msg)msg.Msg != Msg.WM_SYSKEYUP && ProcessShortcut (keyData))
return true;
else if ((keyData & Keys.KeyCode) == Keys.Menu && TopMenu is MainMenu) {
ProcessMenuKey ((Msg) msg.Msg);
return true;
} else if ((keyData & Keys.Alt) == Keys.Alt)
return ProcessMnemonic (msg, keyData);
else if ((Msg)msg.Msg == Msg.WM_SYSKEYUP)
return false;
else if (!Navigating)
return false;
MenuItem item;
switch (keyData) {
case Keys.Up:
if (CurrentMenu is MainMenu)
return true;
else if (CurrentMenu.MenuItems.Count == 1 && CurrentMenu.parent_menu == TopMenu) {
DeselectItem (CurrentMenu.SelectedItem);
CurrentMenu = TopMenu;
return true;
}
item = GetNextItem (CurrentMenu, ItemNavigation.Previous);
if (item != null)
SelectItem (CurrentMenu, item, false);
break;
case Keys.Down:
if (CurrentMenu is MainMenu) {
if (CurrentMenu.SelectedItem != null && CurrentMenu.SelectedItem.IsPopup) {
keynav_state = KeyNavState.Navigating;
item = CurrentMenu.SelectedItem;
ShowSubPopup (CurrentMenu, item);
SelectItem (item, item.MenuItems [0], false);
CurrentMenu = item;
active = true;
GrabControl.ActiveTracker = this;
}
return true;
}
item = GetNextItem (CurrentMenu, ItemNavigation.Next);
if (item != null)
SelectItem (CurrentMenu, item, false);
break;
case Keys.Right:
if (CurrentMenu is MainMenu) {
item = GetNextItem (CurrentMenu, ItemNavigation.Next);
bool popup = item.IsPopup && keynav_state != KeyNavState.NoPopups;
SelectItem (CurrentMenu, item, popup);
if (popup) {
SelectItem (item, item.MenuItems [0], false);
CurrentMenu = item;
}
} else if (CurrentMenu.SelectedItem != null && CurrentMenu.SelectedItem.IsPopup) {
item = CurrentMenu.SelectedItem;
ShowSubPopup (CurrentMenu, item);
SelectItem (item, item.MenuItems [0], false);
CurrentMenu = item;
} else {
//Search up for a main menu
Menu Prnt = CurrentMenu.parent_menu;
while (Prnt != null && !(Prnt is MainMenu)) {
Prnt = Prnt.parent_menu;
}
if (Prnt is MainMenu)
{
item = GetNextItem(Prnt, ItemNavigation.Next);
SelectItem(Prnt, item, item.IsPopup);
if (item.IsPopup)
{
SelectItem(item, item.MenuItems[0], false);
CurrentMenu = item;
}
}
}
break;
case Keys.Left:
if (CurrentMenu is MainMenu) {
item = GetNextItem (CurrentMenu, ItemNavigation.Previous);
bool popup = item.IsPopup && keynav_state != KeyNavState.NoPopups;
SelectItem (CurrentMenu, item, popup);
if (popup) {
SelectItem (item, item.MenuItems [0], false);
CurrentMenu = item;
}
} else if (CurrentMenu.parent_menu is MainMenu) {
item = GetNextItem (CurrentMenu.parent_menu, ItemNavigation.Previous);
SelectItem (CurrentMenu.parent_menu, item, item.IsPopup);
if (item.IsPopup) {
SelectItem (item, item.MenuItems [0], false);
CurrentMenu = item;
}
} else if (!(CurrentMenu is ContextMenu)) { // ContextMenu root remains active.
HideSubPopups (CurrentMenu, TopMenu);
if (CurrentMenu.parent_menu != null)
CurrentMenu = CurrentMenu.parent_menu;
}
break;
case Keys.Return:
if (CurrentMenu.SelectedItem != null && CurrentMenu.SelectedItem.IsPopup) {
keynav_state = KeyNavState.Navigating;
item = CurrentMenu.SelectedItem;
ShowSubPopup (CurrentMenu, item);
SelectItem (item, item.MenuItems [0], false);
CurrentMenu = item;
active = true;
GrabControl.ActiveTracker = this;
} else {
ExecFocusedItem (CurrentMenu, CurrentMenu.SelectedItem);
}
break;
case Keys.Escape:
Deactivate ();
break;
default:
ProcessMnemonic (msg, keyData);
break;
}
return active;
}
bool ProcessMnemonic (Message msg, Keys key_data)
{
keynav_state = KeyNavState.Navigating;
MenuItem item = FindItemByKey (CurrentMenu, msg.WParam);
if ((item == null) || (GrabControl == null) || (GrabControl.ActiveTracker == null))
return false;
active = true;
GrabControl.ActiveTracker = this;
SelectItem (CurrentMenu, item, true);
if (item.IsPopup) {
CurrentMenu = item;
SelectItem (item, item.MenuItems [0], false);
}
return true;
}
void ProcessMenuKey (Msg msg_type)
{
if (TopMenu.MenuItems.Count == 0)
return;
MainMenu main_menu = TopMenu as MainMenu;
switch (msg_type) {
case Msg.WM_SYSKEYDOWN:
switch (keynav_state) {
case KeyNavState.Idle:
keynav_state = KeyNavState.Startup;
hotkey_active = true;
GrabControl.ActiveTracker = this;
CurrentMenu = TopMenu;
main_menu.Draw ();
break;
case KeyNavState.Startup:
break;
default:
Deactivate ();
main_menu.Draw ();
break;
}
break;
case Msg.WM_SYSKEYUP:
switch (keynav_state) {
case KeyNavState.Idle:
case KeyNavState.Navigating:
break;
case KeyNavState.Startup:
keynav_state = KeyNavState.NoPopups;
SelectItem (TopMenu, TopMenu.MenuItems [0], false);
break;
default:
Deactivate ();
main_menu.Draw ();
break;
}
break;
}
}
// UIA Framework Note: Used to select MenuItems
public void OnMotion (MouseEventArgs args)
{
// Windows helpfully sends us MOUSEMOVE messages when any key is pressed.
// So if the mouse hasn't actually moved since the last MOUSEMOVE, ignore it.
if (args.Location == last_motion)
return;
last_motion = args.Location;
MenuItem item = GetItemAtXY (args.X, args.Y);
UpdateCursor ();
if (CurrentMenu.SelectedItem == item)
return;
GrabControl.ActiveTracker = (active || item != null) ? this : null;
if (item == null) {
MenuItem old_item = CurrentMenu.SelectedItem;
// Return when is a popup with visible subitems for MainMenu
if ((active && old_item.VisibleItems && old_item.IsPopup && (CurrentMenu is MainMenu)))
return;
// Also returns when keyboard navigating
if (keynav_state == KeyNavState.Navigating)
return;
// Select parent menu when move outside of menu item
if (old_item.Parent is MenuItem) {
MenuItem new_item = (old_item.Parent as MenuItem);
if (new_item.IsPopup) {
SelectItem (new_item.Parent, new_item, false);
return;
}
}
if (CurrentMenu != TopMenu)
CurrentMenu = CurrentMenu.parent_menu;
DeselectItem (old_item);
} else {
keynav_state = KeyNavState.Idle;
SelectItem (item.Parent, item, active && item.IsPopup && popup_active && (CurrentMenu.SelectedItem != item));
}
}
