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// Copyright 2014 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 "ui/platform_window/win/win_window.h"
#include "ui/events/event.h"
#include "ui/events/event_utils.h"
#include "ui/gfx/win/msg_util.h"
#include "ui/platform_window/platform_window_delegate.h"
namespace ui {
namespace {
bool use_popup_as_root_window_for_test = false;
gfx::Rect GetWindowBoundsForClientBounds(DWORD style, DWORD ex_style,
const gfx::Rect& bounds) {
RECT wr;
wr.left = bounds.x();
wr.top = bounds.y();
wr.right = bounds.x() + bounds.width();
wr.bottom = bounds.y() + bounds.height();
AdjustWindowRectEx(&wr, style, FALSE, ex_style);
// Make sure to keep the window onscreen, as AdjustWindowRectEx() may have
// moved part of it offscreen.
gfx::Rect window_bounds(wr.left, wr.top,
wr.right - wr.left, wr.bottom - wr.top);
window_bounds.set_x(std::max(0, window_bounds.x()));
window_bounds.set_y(std::max(0, window_bounds.y()));
return window_bounds;
}
} // namespace
WinWindow::WinWindow(PlatformWindowDelegate* delegate,
const gfx::Rect& bounds)
: delegate_(delegate) {
CHECK(delegate_);
if (use_popup_as_root_window_for_test)
set_window_style(WS_POPUP);
gfx::Rect window_bounds = GetWindowBoundsForClientBounds(
WS_OVERLAPPEDWINDOW, window_ex_style(), bounds);
gfx::WindowImpl::Init(NULL, window_bounds);
SetWindowText(hwnd(), L"WinWindow");
}
WinWindow::~WinWindow() {
Destroy();
}
void WinWindow::Destroy() {
if (IsWindow(hwnd()))
DestroyWindow(hwnd());
}
void WinWindow::Show() {
ShowWindow(hwnd(), SW_SHOWNORMAL);
}
void WinWindow::Hide() {
ShowWindow(hwnd(), SW_HIDE);
}
void WinWindow::Close() {
Destroy();
}
void WinWindow::SetBounds(const gfx::Rect& bounds) {
gfx::Rect window_bounds = GetWindowBoundsForClientBounds(
GetWindowLong(hwnd(), GWL_STYLE),
GetWindowLong(hwnd(), GWL_EXSTYLE),
bounds);
SetWindowPos(hwnd(), NULL, window_bounds.x(), window_bounds.y(),
window_bounds.width(), window_bounds.height(),
SWP_NOREPOSITION);
}
gfx::Rect WinWindow::GetBounds() {
RECT cr;
GetClientRect(hwnd(), &cr);
return gfx::Rect(cr);
}
void WinWindow::SetCapture() {
DCHECK(::GetCapture() != hwnd());
::SetCapture(hwnd());
}
void WinWindow::ReleaseCapture() {
if (::GetCapture() == hwnd())
::ReleaseCapture();
}
void WinWindow::ToggleFullscreen() {}
void WinWindow::Maximize() {}
void WinWindow::Minimize() {}
void WinWindow::Restore() {}
void WinWindow::SetCursor(PlatformCursor cursor) {}
void WinWindow::MoveCursorTo(const gfx::Point& location) {}
void WinWindow::ConfineCursorToBounds(const gfx::Rect& bounds) {
}
LRESULT WinWindow::OnMouseRange(UINT message, WPARAM w_param, LPARAM l_param) {
MSG msg = { hwnd(), message, w_param, l_param, GetMessageTime(),
{ CR_GET_X_LPARAM(l_param), CR_GET_Y_LPARAM(l_param) } };
MouseEvent event(msg);
if (IsMouseEventFromTouch(message))
event.set_flags(event.flags() | EF_FROM_TOUCH);
if (!(event.flags() & ui::EF_IS_NON_CLIENT))
delegate_->DispatchEvent(&event);
SetMsgHandled(event.handled());
return 0;
}
LRESULT WinWindow::OnCaptureChanged(UINT message,
WPARAM w_param,
LPARAM l_param) {
delegate_->OnLostCapture();
return 0;
}
LRESULT WinWindow::OnKeyEvent(UINT message, WPARAM w_param, LPARAM l_param) {
MSG msg = { hwnd(), message, w_param, l_param };
KeyEvent event(msg);
delegate_->DispatchEvent(&event);
SetMsgHandled(event.handled());
return 0;
}
LRESULT WinWindow::OnNCActivate(UINT message, WPARAM w_param, LPARAM l_param) {
delegate_->OnActivationChanged(!!w_param);
return DefWindowProc(hwnd(), message, w_param, l_param);
}
void WinWindow::OnClose() {
delegate_->OnCloseRequest();
}
LRESULT WinWindow::OnCreate(CREATESTRUCT* create_struct) {
delegate_->OnAcceleratedWidgetAvailable(hwnd());
return 0;
}
void WinWindow::OnDestroy() {
delegate_->OnClosed();
}
void WinWindow::OnPaint(HDC) {
gfx::Rect damage_rect;
RECT update_rect = {0};
if (GetUpdateRect(hwnd(), &update_rect, FALSE))
damage_rect = gfx::Rect(update_rect);
delegate_->OnDamageRect(damage_rect);
ValidateRect(hwnd(), NULL);
}
void WinWindow::OnWindowPosChanged(WINDOWPOS* window_pos) {
if (!(window_pos->flags & SWP_NOSIZE) ||
!(window_pos->flags & SWP_NOMOVE)) {
RECT cr;
GetClientRect(hwnd(), &cr);
delegate_->OnBoundsChanged(
gfx::Rect(window_pos->x, window_pos->y,
cr.right - cr.left, cr.bottom - cr.top));
}
}
namespace test {
// static
void SetUsePopupAsRootWindowForTest(bool use) {
use_popup_as_root_window_for_test = use;
}
} // namespace test
} // namespace ui
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