feat: support Mica/Acrylic on Windows (#38163)
* feat: support Mica/Acrylic on Windows * chore: feedback from review
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@ -5,6 +5,7 @@
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#include "shell/browser/native_window_views.h"
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#if BUILDFLAG(IS_WIN)
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#include <dwmapi.h>
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#include <wrl/client.h>
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#endif
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@ -69,6 +70,7 @@
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#elif BUILDFLAG(IS_WIN)
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#include "base/win/win_util.h"
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#include "base/win/windows_version.h"
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#include "content/public/common/color_parser.h"
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#include "shell/browser/ui/views/win_frame_view.h"
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#include "shell/browser/ui/win/electron_desktop_native_widget_aura.h"
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@ -83,6 +85,19 @@ namespace electron {
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#if BUILDFLAG(IS_WIN)
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DWM_SYSTEMBACKDROP_TYPE GetBackdropFromString(const std::string& material) {
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if (material == "none") {
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return DWMSBT_NONE;
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} else if (material == "acrylic") {
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return DWMSBT_TRANSIENTWINDOW;
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} else if (material == "mica") {
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return DWMSBT_MAINWINDOW;
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} else if (material == "tabbed") {
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return DWMSBT_TABBEDWINDOW;
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}
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return DWMSBT_AUTO;
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}
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// Similar to the ones in display::win::ScreenWin, but with rounded values
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// These help to avoid problems that arise from unresizable windows where the
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// original ceil()-ed values can cause calculation errors, since converting
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@ -1379,6 +1394,21 @@ bool NativeWindowViews::IsMenuBarVisible() {
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return root_view_->IsMenuBarVisible();
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}
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void NativeWindowViews::SetBackgroundMaterial(const std::string& material) {
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#if BUILDFLAG(IS_WIN)
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// DWMWA_USE_HOSTBACKDROPBRUSH is only supported on Windows 11 22H2 and up.
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if (base::win::GetVersion() < base::win::Version::WIN11_22H2)
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return;
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DWM_SYSTEMBACKDROP_TYPE backdrop_type = GetBackdropFromString(material);
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HRESULT result =
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DwmSetWindowAttribute(GetAcceleratedWidget(), DWMWA_SYSTEMBACKDROP_TYPE,
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&backdrop_type, sizeof(backdrop_type));
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if (FAILED(result))
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LOG(WARNING) << "Failed to set background material to " << material;
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#endif
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}
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void NativeWindowViews::SetVisibleOnAllWorkspaces(
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bool visible,
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bool visibleOnFullScreen,
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