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// Copyright (c) 2011 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 "remoting/host/disconnect_window.h"
#include <windows.h>
#include "base/compiler_specific.h"
#include "base/logging.h"
#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "remoting/host/chromoting_host.h"
// TODO(wez): The DisconnectWindow isn't plugin-specific, so shouldn't have
// a dependency on the plugin's resource header.
#include "remoting/host/plugin/host_plugin_resource.h"
#include "remoting/host/ui_strings.h"
// TODO(garykac): Lots of duplicated code in this file and
// continue_window_win.cc. These global floating windows are temporary so
// they should be deleted soon. If we need to expand this then we should
// create a class with the shared code.
// HMODULE from DllMain/WinMain. This is needed to find our dialog resource.
// This is defined in:
// Plugin: host_plugin.cc
// SimpleHost: simple_host_process.cc
extern HMODULE g_hModule;
const int DISCONNECT_HOTKEY_ID = 1000;
namespace remoting {
class DisconnectWindowWin : public DisconnectWindow {
public:
DisconnectWindowWin();
virtual ~DisconnectWindowWin();
virtual void Show(remoting::ChromotingHost* host,
const std::string& username) OVERRIDE;
virtual void Hide() OVERRIDE;
private:
static BOOL CALLBACK DialogProc(HWND hwmd, UINT msg, WPARAM wParam,
LPARAM lParam);
BOOL OnDialogMessage(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
void ShutdownHost();
void EndDialog(int result);
void SetStrings(const UiStrings& strings, const std::string& username);
remoting::ChromotingHost* host_;
HWND hwnd_;
bool has_hotkey_;
DISALLOW_COPY_AND_ASSIGN(DisconnectWindowWin);
};
DisconnectWindowWin::DisconnectWindowWin()
: host_(NULL),
hwnd_(NULL),
has_hotkey_(false) {
}
DisconnectWindowWin::~DisconnectWindowWin() {
EndDialog(0);
}
BOOL CALLBACK DisconnectWindowWin::DialogProc(HWND hwnd, UINT msg,
WPARAM wParam, LPARAM lParam) {
DisconnectWindowWin* win = NULL;
if (msg == WM_INITDIALOG) {
win = reinterpret_cast<DisconnectWindowWin*>(lParam);
CHECK(win);
SetWindowLongPtr(hwnd, DWLP_USER, (LONG_PTR)win);
} else {
LONG_PTR lp = GetWindowLongPtr(hwnd, DWLP_USER);
win = reinterpret_cast<DisconnectWindowWin*>(lp);
}
if (win == NULL)
return FALSE;
return win->OnDialogMessage(hwnd, msg, wParam, lParam);
}
BOOL DisconnectWindowWin::OnDialogMessage(HWND hwnd, UINT msg,
WPARAM wParam, LPARAM lParam) {
switch (msg) {
case WM_HOTKEY:
ShutdownHost();
EndDialog(0);
return TRUE;
case WM_CLOSE:
// Ignore close messages.
return TRUE;
case WM_DESTROY:
// Ensure we don't try to use the HWND anymore.
hwnd_ = NULL;
return TRUE;
case WM_COMMAND:
switch (LOWORD(wParam)) {
case IDC_DISCONNECT:
ShutdownHost();
EndDialog(LOWORD(wParam));
return TRUE;
}
}
return FALSE;
}
void DisconnectWindowWin::Show(ChromotingHost* host,
const std::string& username) {
host_ = host;
CHECK(!hwnd_);
hwnd_ = CreateDialogParam(g_hModule, MAKEINTRESOURCE(IDD_DISCONNECT), NULL,
(DLGPROC)DialogProc, (LPARAM)this);
if (!hwnd_) {
LOG(ERROR) << "Unable to create Disconnect dialog for remoting.";
return;
}
// Set up handler for Ctrl-Alt-Esc shortcut.
if (!has_hotkey_ && RegisterHotKey(hwnd_, DISCONNECT_HOTKEY_ID,
MOD_ALT | MOD_CONTROL, VK_ESCAPE)) {
has_hotkey_ = true;
}
SetStrings(host->ui_strings(), username);
ShowWindow(hwnd_, SW_SHOW);
}
void DisconnectWindowWin::ShutdownHost() {
CHECK(host_);
host_->Shutdown(NULL);
}
void DisconnectWindowWin::SetStrings(const UiStrings& strings,
const std::string& username) {
SetWindowText(hwnd_, strings.product_name.c_str());
HWND hwndButton = GetDlgItem(hwnd_, IDC_DISCONNECT);
CHECK(hwndButton);
const WCHAR* label =
has_hotkey_ ? strings.disconnect_button_text_plus_shortcut.c_str()
: strings.disconnect_button_text.c_str();
SetWindowText(hwndButton, label);
HWND hwndSharingWith = GetDlgItem(hwnd_, IDC_DISCONNECT_SHARINGWITH);
CHECK(hwndSharingWith);
string16 text = ReplaceStringPlaceholders(
strings.disconnect_message, UTF8ToUTF16(username), NULL);
SetWindowText(hwndSharingWith, text.c_str());
}
void DisconnectWindowWin::Hide() {
EndDialog(0);
}
void DisconnectWindowWin::EndDialog(int result) {
if (has_hotkey_) {
UnregisterHotKey(hwnd_, DISCONNECT_HOTKEY_ID);
has_hotkey_ = false;
}
if (hwnd_) {
::EndDialog(hwnd_, result);
hwnd_ = NULL;
}
}
DisconnectWindow* DisconnectWindow::Create() {
return new DisconnectWindowWin;
}
} // namespace remoting
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