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views: Make transparent window work

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This commit is contained in:
Cheng Zhao 2014-12-23 16:55:57 -08:00
parent 85685feff4
commit 1a34e09a45
1 changed files with 17 additions and 1 deletions
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18
atom/browser/native_window_views.cc
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@ -28,6 +28,7 @@
#include "ui/views/window/client_view.h"
#include "ui/views/widget/native_widget_private.h"
#include "ui/views/widget/widget.h"
#include "ui/wm/core/shadow_types.h"
#if defined(USE_X11)
#include "atom/browser/browser.h"
@ -183,6 +184,9 @@ NativeWindowViews::NativeWindowViews(content::WebContents* web_contents,
params.type = views::Widget::InitParams::TYPE_WINDOW;
params.remove_standard_frame = !has_frame_;
if (transparent_)
params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
#if defined(USE_X11)
std::string name = Browser::Get()->GetName();
// Set WM_WINDOW_ROLE.
@ -232,13 +236,20 @@ NativeWindowViews::NativeWindowViews(content::WebContents* web_contents,
bounds = ContentBoundsToWindowBounds(bounds);
#if defined(OS_WIN)
if (!has_frame_) {
if (!transparent_ && !has_frame_) {
// Set Window style so that we get a minimize and maximize animation when
// frameless.
DWORD frame_style = WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX |
WS_CAPTION;
::SetWindowLong(GetAcceleratedWidget(), GWL_STYLE, frame_style);
}
if (transparent_) {
// Transparent window on Windows has to have WS_EX_COMPOSITED style.
LONG ex_style = ::GetWindowLong(GetAcceleratedWidget(), GWL_EXSTYLE);
ex_style |= WS_EX_COMPOSITED;
::SetWindowLong(GetAcceleratedWidget(), GWL_EXSTYLE, ex_style);
}
#endif
// TODO(zcbenz): This was used to force using native frame on Windows 2003, we
@ -248,6 +259,11 @@ NativeWindowViews::NativeWindowViews(content::WebContents* web_contents,
window_->FrameTypeChanged();
}
// The given window is most likely not rectangular since it uses
// transparency and has no standard frame, don't show a shadow for it.
if (transparent_ && !has_frame_)
wm::SetShadowType(GetNativeWindow(), wm::SHADOW_TYPE_NONE);
window_->UpdateWindowIcon();
window_->CenterWindow(bounds.size());
Layout();