1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "ui/shell_dialogs/base_shell_dialog_win.h"
9 #include "base/threading/thread.h"
10 #include "base/win/scoped_com_initializer.h"
15 BaseShellDialogImpl::Owners BaseShellDialogImpl::owners_;
16 int BaseShellDialogImpl::instance_count_ = 0;
18 BaseShellDialogImpl::BaseShellDialogImpl() {
22 BaseShellDialogImpl::~BaseShellDialogImpl() {
23 // All runs should be complete by the time this is called!
24 if (--instance_count_ == 0)
25 DCHECK(owners_.empty());
28 BaseShellDialogImpl::RunState BaseShellDialogImpl::BeginRun(HWND owner) {
29 // Cannot run a modal shell dialog if one is already running for this owner.
30 DCHECK(!IsRunningDialogForOwner(owner));
31 // The owner must be a top level window, otherwise we could end up with two
32 // entries in our map for the same top level window.
33 DCHECK(!owner || owner == GetAncestor(owner, GA_ROOT));
35 run_state.dialog_thread = CreateDialogThread();
36 run_state.owner = owner;
38 owners_.insert(owner);
44 void BaseShellDialogImpl::EndRun(RunState run_state) {
45 if (run_state.owner) {
46 DCHECK(IsRunningDialogForOwner(run_state.owner));
47 EnableOwner(run_state.owner);
48 DCHECK(owners_.find(run_state.owner) != owners_.end());
49 owners_.erase(run_state.owner);
51 DCHECK(run_state.dialog_thread);
52 delete run_state.dialog_thread;
55 bool BaseShellDialogImpl::IsRunningDialogForOwner(HWND owner) const {
56 return (owner && owners_.find(owner) != owners_.end());
59 void BaseShellDialogImpl::DisableOwner(HWND owner) {
61 EnableWindow(owner, FALSE);
65 base::Thread* BaseShellDialogImpl::CreateDialogThread() {
66 base::Thread* thread = new base::Thread("Chrome_ShellDialogThread");
67 thread->init_com_with_mta(false);
68 bool started = thread->Start();
73 void BaseShellDialogImpl::EnableOwner(HWND owner) {
75 EnableWindow(owner, TRUE);