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Merge pull request #1113 from alebastr/exclusive-and-passthrough

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Add config options for exclusive zone and input event passthrough
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Alex 2021-05-22 10:34:39 +02:00 committed by GitHub
commit 94a882bf95
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3 changed files with 64 additions and 3 deletions
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2
include/bar.hpp
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@ -44,6 +44,7 @@ class BarSurface {
virtual void setExclusiveZone(bool enable) = 0;
virtual void setLayer(bar_layer layer) = 0;
virtual void setMargins(const struct bar_margins &margins) = 0;
virtual void setPassThrough(bool enable) = 0;
virtual void setPosition(const std::string_view &position) = 0;
virtual void setSize(uint32_t width, uint32_t height) = 0;
virtual void commit(){};
@ -64,6 +65,7 @@ class Bar {
struct waybar_output *output;
Json::Value config;
struct wl_surface * surface;
bool exclusive = true;
bool visible = true;
bool vertical = false;
Gtk::Window window;

11
man/waybar.5.scd.in
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@ -68,6 +68,17 @@ Also a minimal example configuration can be found on the at the bottom of this m
typeof: string ++
Optional name added as a CSS class, for styling multiple waybars.
*exclusive* ++
typeof: bool ++
default: *true* unless the layer is set to *overlay* ++
Option to request an exclusive zone from the compositor. Disable this to allow drawing application windows underneath or on top of the bar.
*passthrough* ++
typeof: bool ++
default: *false* unless the layer is set to *overlay* ++
Option to pass any pointer events to the window under the bar.
Intended to be used with either *top* or *overlay* layers and without exclusive zone.
*gtk-layer-shell* ++
typeof: bool ++
default: true ++

52
src/bar.cpp
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@ -33,6 +33,7 @@ struct GLSSurfaceImpl : public BarSurface, public sigc::trackable {
gtk_layer_set_monitor(window_.gobj(), output.monitor->gobj());
gtk_layer_set_namespace(window_.gobj(), "waybar");
window.signal_map_event().connect_notify(sigc::mem_fun(*this, &GLSSurfaceImpl::onMap));
window.signal_configure_event().connect_notify(
sigc::mem_fun(*this, &GLSSurfaceImpl::onConfigure));
}
@ -62,6 +63,18 @@ struct GLSSurfaceImpl : public BarSurface, public sigc::trackable {
gtk_layer_set_layer(window_.gobj(), layer);
}
void setPassThrough(bool enable) override {
passthrough_ = enable;
auto gdk_window = window_.get_window();
if (gdk_window) {
Cairo::RefPtr<Cairo::Region> region;
if (enable) {
region = Cairo::Region::create();
}
gdk_window->input_shape_combine_region(region, 0, 0);
}
}
void setPosition(const std::string_view& position) override {
auto unanchored = GTK_LAYER_SHELL_EDGE_BOTTOM;
vertical_ = false;
@ -93,8 +106,11 @@ struct GLSSurfaceImpl : public BarSurface, public sigc::trackable {
std::string output_name_;
uint32_t width_;
uint32_t height_;
bool passthrough_ = false;
bool vertical_ = false;
void onMap(GdkEventAny* ev) { setPassThrough(passthrough_); }
void onConfigure(GdkEventConfigure* ev) {
/*
* GTK wants new size for the window.
@ -182,6 +198,20 @@ struct RawSurfaceImpl : public BarSurface, public sigc::trackable {
}
}
void setPassThrough(bool enable) override {
passthrough_ = enable;
/* GTK overwrites any region changes applied directly to the wl_surface,
* thus the same GTK region API as in the GLS impl has to be used. */
auto gdk_window = window_.get_window();
if (gdk_window) {
Cairo::RefPtr<Cairo::Region> region;
if (enable) {
region = Cairo::Region::create();
}
gdk_window->input_shape_combine_region(region, 0, 0);
}
}
void setPosition(const std::string_view& position) override {
anchor_ = HORIZONTAL_ANCHOR | ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP;
if (position == "bottom") {
@ -230,6 +260,7 @@ struct RawSurfaceImpl : public BarSurface, public sigc::trackable {
uint32_t height_ = 0;
uint8_t anchor_ = HORIZONTAL_ANCHOR | ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP;
bool exclusive_zone_ = true;
bool passthrough_ = false;
struct bar_margins margins_;
zwlr_layer_shell_v1_layer layer_ = ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM;
@ -262,6 +293,7 @@ struct RawSurfaceImpl : public BarSurface, public sigc::trackable {
setSurfaceSize(width_, height_);
setExclusiveZone(exclusive_zone_);
setPassThrough(passthrough_);
commit();
wl_display_roundtrip(client->wl_display);
@ -377,6 +409,21 @@ waybar::Bar::Bar(struct waybar_output* w_output, const Json::Value& w_config)
layer_ = bar_layer::OVERLAY;
}
if (config["exclusive"].isBool()) {
exclusive = config["exclusive"].asBool();
} else if (layer_ == bar_layer::OVERLAY) {
// swaybar defaults: overlay mode does not reserve an exclusive zone
exclusive = false;
}
bool passthrough = false;
if (config["passthrough"].isBool()) {
passthrough = config["passthrough"].asBool();
} else if (layer_ == bar_layer::OVERLAY) {
// swaybar defaults: overlay mode does not accept pointer events.
passthrough = true;
}
auto position = config["position"].asString();
if (position == "right" || position == "left") {
@ -452,8 +499,9 @@ waybar::Bar::Bar(struct waybar_output* w_output, const Json::Value& w_config)
}
surface_impl_->setLayer(layer_);
surface_impl_->setExclusiveZone(true);
surface_impl_->setExclusiveZone(exclusive);
surface_impl_->setMargins(margins_);
surface_impl_->setPassThrough(passthrough);
surface_impl_->setPosition(position);
surface_impl_->setSize(width, height);
@ -492,7 +540,7 @@ void waybar::Bar::setVisible(bool value) {
window.set_opacity(1);
surface_impl_->setLayer(layer_);
}
surface_impl_->setExclusiveZone(visible);
surface_impl_->setExclusiveZone(exclusive && visible);
surface_impl_->commit();
}