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[effects/slide] Simplify logic that forces blur and background contrast

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Summary:
The "Force" part in WindowForceBackgroundContrastRole and WindowForceBlurRole
is confusing. If WindowForceBlurRole is set on a window, background
behind it won't be blurred.

By setting WindowForceBlurRole we tell the Blur effect "that's fine to
do your business behind transformed windows."

The Slide effect only translates windows, it doesn't distort them, etc.
So, we can set WindowForceBackgroundContrastRole and WindowForceBlurRole
for all windows.

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: davidedmundson, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D15707
This commit is contained in:
Vlad Zagorodniy 2018-09-23 14:52:28 +03:00
parent 6f5b3fbe40
commit 6cac594acb
2 changed files with 15 additions and 102 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

108
effects/slide/slide.cpp
View file

@ -26,11 +26,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
// KConfigSkeleton
#include "slideconfig.h"
// KWayland
#include <KWayland/Server/blur_interface.h>
#include <KWayland/Server/contrast_interface.h>
#include <KWayland/Server/surface_interface.h>
namespace KWin
{
@ -53,6 +48,13 @@ SlideEffect::SlideEffect()
this, &SlideEffect::numberScreensChanged);
}
SlideEffect::~SlideEffect()
{
if (m_active) {
stop();
}
}
bool SlideEffect::supported()
{
return effects->animationsSupported();
@ -334,70 +336,6 @@ int SlideEffect::workspaceHeight() const
return h;
}
bool SlideEffect::shouldForceBlur(const EffectWindow *w) const
{
// While there is an active fullscreen effect, the blur effect
// tends to do nothing, i.e. it doesn't blur behind windows.
// So, we should force the blur effect to blur by setting
// WindowForceBlurRole.
if (w->data(WindowForceBlurRole).toBool()) {
return false;
}
if (w->data(WindowBlurBehindRole).isValid()) {
return true;
}
if (w->decorationHasAlpha() && effects->decorationSupportsBlurBehind()) {
return true;
}
// FIXME: it should be something like this:
// if (surf) {
// return !surf->blur().isNull();
// }
const KWayland::Server::SurfaceInterface *surf = w->surface();
if (surf && surf->blur()) {
return true;
}
// TODO: make it X11-specific(check _KDE_NET_WM_BLUR_BEHIND_REGION)
// or delete it in the future
return w->hasAlpha();
}
bool SlideEffect::shouldForceBackgroundContrast(const EffectWindow *w) const
{
// While there is an active fullscreen effect, the background
// contrast effect tends to do nothing, i.e. it doesn't change
// contrast. So, we should force the background contrast effect
// to change contrast by setting WindowForceBackgroundContrastRole.
if (w->data(WindowForceBackgroundContrastRole).toBool()) {
return false;
}
if (w->data(WindowBackgroundContrastRole).isValid()) {
return true;
}
// FIXME: it should be something like this:
// if (surf) {
// return !surf->contrast().isNull();
// }
const KWayland::Server::SurfaceInterface *surf = w->surface();
if (surf && surf->contrast()) {
return true;
}
// TODO: make it X11-specific(check _KDE_NET_WM_BACKGROUND_CONTRAST_REGION)
// or delete it in the future
return w->hasAlpha()
&& w->isOnAllDesktops()
&& (w->isDock() || w->keepAbove());
}
bool SlideEffect::shouldElevate(const EffectWindow *w) const
{
// Static docks(i.e. this effect doesn't slide docks) should be elevated
@ -430,18 +368,12 @@ void SlideEffect::start(int old, int current, EffectWindow *movingWindow)
const auto windows = effects->stackingOrder();
for (EffectWindow *w : windows) {
if (shouldForceBlur(w)) {
w->setData(WindowForceBlurRole, QVariant(true));
m_forcedRoles.blur << w;
}
if (shouldForceBackgroundContrast(w)) {
w->setData(WindowForceBackgroundContrastRole, QVariant(true));
m_forcedRoles.backgroundContrast << w;
}
if (shouldElevate(w)) {
effects->setElevatedWindow(w, true);
m_elevatedWindows << w;
}
w->setData(WindowForceBackgroundContrastRole, QVariant(true));
w->setData(WindowForceBlurRole, QVariant(true));
}
m_diff = desktopCoords(current) - desktopCoords(old);
@ -457,15 +389,11 @@ void SlideEffect::start(int old, int current, EffectWindow *movingWindow)
void SlideEffect::stop()
{
for (EffectWindow *w : m_forcedRoles.blur) {
const EffectWindowList windows = effects->stackingOrder();
for (EffectWindow *w : windows) {
w->setData(WindowForceBackgroundContrastRole, QVariant());
w->setData(WindowForceBlurRole, QVariant());
}
m_forcedRoles.blur.clear();
for (EffectWindow *w : m_forcedRoles.backgroundContrast) {
w->setData(WindowForceBackgroundContrastRole, QVariant());
}
m_forcedRoles.backgroundContrast.clear();
for (EffectWindow *w : m_elevatedWindows) {
effects->setElevatedWindow(w, false);
@ -491,18 +419,12 @@ void SlideEffect::windowAdded(EffectWindow *w)
if (!m_active) {
return;
}
if (shouldForceBlur(w)) {
w->setData(WindowForceBlurRole, QVariant(true));
m_forcedRoles.blur << w;
}
if (shouldForceBackgroundContrast(w)) {
w->setData(WindowForceBackgroundContrastRole, QVariant(true));
m_forcedRoles.backgroundContrast << w;
}
if (shouldElevate(w)) {
effects->setElevatedWindow(w, true);
m_elevatedWindows << w;
}
w->setData(WindowForceBackgroundContrastRole, QVariant(true));
w->setData(WindowForceBlurRole, QVariant(true));
}
void SlideEffect::windowDeleted(EffectWindow *w)
@ -513,8 +435,6 @@ void SlideEffect::windowDeleted(EffectWindow *w)
if (w == m_movingWindow) {
m_movingWindow = nullptr;
}
m_forcedRoles.blur.removeAll(w);
m_forcedRoles.backgroundContrast.removeAll(w);
m_elevatedWindows.removeAll(w);
m_paintCtx.fullscreenWindows.removeAll(w);
}

9
effects/slide/slide.h
View file

@ -40,6 +40,7 @@ class SlideEffect : public Effect
public:
SlideEffect();
~SlideEffect() override;
void reconfigure(ReconfigureFlags) override;
@ -82,9 +83,6 @@ private:
bool isTranslated(const EffectWindow *w) const;
bool isPainted(const EffectWindow *w) const;
bool shouldForceBlur(const EffectWindow *w) const;
bool shouldForceBackgroundContrast(const EffectWindow *w) const;
bool shouldElevate(const EffectWindow *w) const;
void start(int old, int current, EffectWindow *movingWindow = nullptr);
@ -111,11 +109,6 @@ private:
EffectWindowList fullscreenWindows;
} m_paintCtx;
struct {
EffectWindowList blur;
EffectWindowList backgroundContrast;
} m_forcedRoles;
EffectWindowList m_elevatedWindows;
};