blob: b2301e69bcfb06ec07e0dd16cf907c8173bb12e1 [file] [log] [blame]
// 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 "chrome/browser/ui/views/apps/app_window_desktop_window_tree_host_win.h"
#include <dwmapi.h>
#include "chrome/browser/ui/views/apps/chrome_native_app_window_views_win.h"
#include "chrome/browser/ui/views/apps/glass_app_window_frame_view_win.h"
#include "grit/theme_resources.h"
#include "ui/base/theme_provider.h"
#include "ui/gfx/win/dpi.h"
#include "ui/views/controls/menu/native_menu_win.h"
#pragma comment(lib, "dwmapi.lib")
ChromeNativeAppWindowViewsWin* app_window,
views::DesktopNativeWidgetAura* desktop_native_widget_aura)
: DesktopWindowTreeHostWin(app_window->widget(),
app_window_(app_window) {
AppWindowDesktopWindowTreeHostWin::~AppWindowDesktopWindowTreeHostWin() {
bool AppWindowDesktopWindowTreeHostWin::GetClientAreaInsets(
gfx::Insets* insets) const {
// Use the default client insets for an opaque frame or a glass popup/app
// frame.
if (!app_window_->glass_frame_view())
return false;
// This tells Windows that most of the window is a client area, meaning Chrome
// will draw it. Windows still fills in the glass bits because of the
// DwmExtendFrameIntoClientArea call in |UpdateDWMFrame|.
// The 1 pixel edge is left on the sides and bottom as without this
// * windows paint in a more standard way, and
// * get weird black bars at the top when maximized in multiple monitor
// configurations.
int border_thickness = 1;
insets->Set(0, border_thickness, border_thickness, border_thickness);
return true;
void AppWindowDesktopWindowTreeHostWin::HandleFrameChanged() {
// We need to update the glass region on or off before the base class adjusts
// the window region.
void AppWindowDesktopWindowTreeHostWin::PostHandleMSG(UINT message,
WPARAM w_param,
LPARAM l_param) {
switch (message) {
void AppWindowDesktopWindowTreeHostWin::UpdateDWMFrame() {
if (!GetWidget()->client_view() || !app_window_->glass_frame_view())
MARGINS margins = {0};
// If the opaque frame is visible, we use the default (zero) margins.
// Otherwise, we need to figure out how to extend the glass in.
if (app_window_->glass_frame_view()) {
gfx::Insets insets = app_window_->glass_frame_view()->GetGlassInsets();
margins.cxLeftWidth = insets.left();
margins.cxRightWidth = insets.right();
margins.cyBottomHeight = insets.bottom();
margins.cyTopHeight =;
DwmExtendFrameIntoClientArea(GetHWND(), &margins);