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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "views/controls/menu/menu_host_win.h"
#include "base/win_util.h"
#include "views/controls/menu/menu_controller.h"
#include "views/controls/menu/menu_host_root_view.h"
#include "views/controls/menu/menu_item_view.h"
#include "views/controls/menu/submenu_view.h"
namespace views {
MenuHost::MenuHost(SubmenuView* submenu)
: closed_(false),
submenu_(submenu),
owns_capture_(false) {
set_window_style(WS_POPUP);
set_initial_class_style(
(win_util::GetWinVersion() < win_util::WINVERSION_XP) ?
0 : CS_DROPSHADOW);
is_mouse_down_ =
((GetKeyState(VK_LBUTTON) & 0x80) ||
(GetKeyState(VK_RBUTTON) & 0x80) ||
(GetKeyState(VK_MBUTTON) & 0x80) ||
(GetKeyState(VK_XBUTTON1) & 0x80) ||
(GetKeyState(VK_XBUTTON2) & 0x80));
// Mouse clicks shouldn't give us focus.
set_window_ex_style(WS_EX_TOPMOST | WS_EX_NOACTIVATE);
}
void MenuHost::Init(HWND parent,
const gfx::Rect& bounds,
View* contents_view,
bool do_capture) {
WidgetWin::Init(parent, bounds);
SetContentsView(contents_view);
Show();
owns_capture_ = do_capture;
if (do_capture) {
SetCapture();
has_capture_ = true;
#ifdef DEBUG_MENU
DLOG(INFO) << "Doing capture";
#endif
}
}
void MenuHost::Show() {
// We don't want to take focus away from the hosting window.
ShowWindow(SW_SHOWNA);
}
void MenuHost::Hide() {
if (closed_) {
// We're already closed, nothing to do.
// This is invoked twice if the first time just hid us, and the second
// time deleted Closed (deleted) us.
return;
}
// The menus are freed separately, and possibly before the window is closed,
// remove them so that View doesn't try to access deleted objects.
static_cast<MenuHostRootView*>(GetRootView())->suspend_events();
GetRootView()->RemoveAllChildViews(false);
closed_ = true;
ReleaseCapture();
WidgetWin::Hide();
}
void MenuHost::HideWindow() {
// Make sure we release capture before hiding.
ReleaseCapture();
WidgetWin::Hide();
}
void MenuHost::OnCaptureChanged(HWND hwnd) {
WidgetWin::OnCaptureChanged(hwnd);
owns_capture_ = false;
#ifdef DEBUG_MENU
DLOG(INFO) << "Capture changed";
#endif
}
void MenuHost::ReleaseCapture() {
if (owns_capture_) {
#ifdef DEBUG_MENU
DLOG(INFO) << "released capture";
#endif
owns_capture_ = false;
::ReleaseCapture();
}
}
RootView* MenuHost::CreateRootView() {
return new MenuHostRootView(this, submenu_);
}
void MenuHost::OnCancelMode() {
if (!closed_) {
#ifdef DEBUG_MENU
DLOG(INFO) << "OnCanceMode, closing menu";
#endif
submenu_->GetMenuItem()->GetMenuController()->Cancel(true);
}
}
// Overriden to return false, we do NOT want to release capture on mouse
// release.
bool MenuHost::ReleaseCaptureOnMouseReleased() {
return false;
}
} // namespace views
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