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refactor(bar): separate GTK event handlers for gtk-layer-shell 

Cleanly separate resizing logic for gtk-layer-shell and manually managed
layer surface code.
pull/824/head
Aleksei Bavshin 2020-08-09 18:58:01 -07:00
parent 591eb2ea38
commit 3663b9193d
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GPG Key ID: 4F071603387A382A
2 changed files with 89 additions and 45 deletions
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7
include/bar.hpp
View File

@ -53,13 +53,18 @@ class Bar {
static void layerSurfaceHandleClosed(void *, struct zwlr_layer_surface_v1 *);
#ifdef HAVE_GTK_LAYER_SHELL
/* gtk-layer-shell code */
void initGtkLayerShell();
void onConfigureGLS(GdkEventConfigure *ev);
void onMapGLS(GdkEventAny *ev);
#endif
/* fallback layer-surface code */
void onConfigure(GdkEventConfigure *ev);
void onRealize();
void onMap(GdkEventAny *ev);
void setExclusiveZone(uint32_t width, uint32_t height);
void setSurfaceSize(uint32_t width, uint32_t height);
/* common code */
void setExclusiveZone(uint32_t width, uint32_t height);
auto setupWidgets() -> void;
void getModules(const Factory &, const std::string &);
void setupAltFormatKeyForModule(const std::string &module_name);

119
src/bar.cpp
View File

@ -101,56 +101,25 @@ waybar::Bar::Bar(struct waybar_output* w_output, const Json::Value& w_config)
use_gls_ = config["gtk-layer-shell"].isBool() ? config["gtk-layer-shell"].asBool() : true;
if (use_gls_) {
initGtkLayerShell();
window.signal_map_event().connect_notify(sigc::mem_fun(*this, &Bar::onMapGLS));
window.signal_configure_event().connect_notify(sigc::mem_fun(*this, &Bar::onConfigureGLS));
}
#endif
if (!use_gls_) {
window.signal_realize().connect_notify(sigc::mem_fun(*this, &Bar::onRealize));
window.signal_map_event().connect_notify(sigc::mem_fun(*this, &Bar::onMap));
window.signal_configure_event().connect_notify(sigc::mem_fun(*this, &Bar::onConfigure));
}
window.set_size_request(width_, height_);
setupWidgets();
if (window.get_realized()) {
if (!use_gls_ && window.get_realized()) {
onRealize();
}
window.show_all();
}
void waybar::Bar::onConfigure(GdkEventConfigure* ev) {
auto tmp_height = height_;
auto tmp_width = width_;
if (ev->height > static_cast<int>(height_)) {
// Default minimal value
if (height_ > 1) {
spdlog::warn(MIN_HEIGHT_MSG, height_, ev->height);
}
if (config["height"].isUInt()) {
spdlog::info(SIZE_DEFINED, "Height");
} else {
tmp_height = ev->height;
}
}
if (ev->width > static_cast<int>(width_)) {
// Default minimal value
if (width_ > 1) {
spdlog::warn(MIN_WIDTH_MSG, width_, ev->width);
}
if (config["width"].isUInt()) {
spdlog::info(SIZE_DEFINED, "Width");
} else {
tmp_width = ev->width;
}
}
if (use_gls_) {
width_ = tmp_width;
height_ = tmp_height;
spdlog::debug("Set surface size {}x{} for output {}", width_, height_, output->name);
setExclusiveZone(tmp_width, tmp_height);
} else if (tmp_width != width_ || tmp_height != height_) {
setSurfaceSize(tmp_width, tmp_height);
}
}
#ifdef HAVE_GTK_LAYER_SHELL
void waybar::Bar::initGtkLayerShell() {
auto gtk_window = window.gobj();
@ -181,8 +150,80 @@ void waybar::Bar::initGtkLayerShell() {
setExclusiveZone(width_, height_);
}
}
void waybar::Bar::onConfigureGLS(GdkEventConfigure* ev) {
/*
* GTK wants new size for the window.
* Actual resizing is done within the gtk-layer-shell code; the only remaining action is to apply
* exclusive zone.
* gtk_layer_auto_exclusive_zone_enable() could handle even that, but at the cost of ignoring
* margins on unanchored edge.
*
* Note: forced resizing to a window smaller than required by GTK would not work with
* gtk-layer-shell.
*/
if (vertical) {
if (width_ > 1 && ev->width > static_cast<int>(width_)) {
spdlog::warn(MIN_WIDTH_MSG, width_, ev->width);
}
} else {
if (!vertical && height_ > 1 && ev->height > static_cast<int>(height_)) {
spdlog::warn(MIN_HEIGHT_MSG, height_, ev->height);
}
}
width_ = ev->width;
height_ = ev->height;
spdlog::info(BAR_SIZE_MSG, width_, height_, output->name);
setExclusiveZone(width_, height_);
}
void waybar::Bar::onMapGLS(GdkEventAny* ev) {
/*
* Obtain a pointer to the custom layer surface for modules that require it (idle_inhibitor).
*/
auto gdk_window = window.get_window();
surface = gdk_wayland_window_get_wl_surface(gdk_window->gobj());
}
#endif
void waybar::Bar::onConfigure(GdkEventConfigure* ev) {
/*
* GTK wants new size for the window.
*
* Prefer configured size if it's non-default.
* If the size is not set and the window is smaller than requested by GTK, request resize from
* layer surface.
*/
auto tmp_height = height_;
auto tmp_width = width_;
if (ev->height > static_cast<int>(height_)) {
// Default minimal value
if (height_ > 1) {
spdlog::warn(MIN_HEIGHT_MSG, height_, ev->height);
}
if (config["height"].isUInt()) {
spdlog::info(SIZE_DEFINED, "Height");
} else {
tmp_height = ev->height;
}
}
if (ev->width > static_cast<int>(width_)) {
// Default minimal value
if (width_ > 1) {
spdlog::warn(MIN_WIDTH_MSG, width_, ev->width);
}
if (config["width"].isUInt()) {
spdlog::info(SIZE_DEFINED, "Width");
} else {
tmp_width = ev->width;
}
}
if (tmp_width != width_ || tmp_height != height_) {
setSurfaceSize(tmp_width, tmp_height);
}
}
void waybar::Bar::onRealize() {
auto gdk_window = window.get_window()->gobj();
gdk_wayland_window_set_use_custom_surface(gdk_window);
@ -192,10 +233,6 @@ void waybar::Bar::onMap(GdkEventAny* ev) {
auto gdk_window = window.get_window()->gobj();
surface = gdk_wayland_window_get_wl_surface(gdk_window);
if (use_gls_) {
return;
}
auto client = waybar::Client::inst();
// owned by output->monitor; no need to destroy
auto wl_output = gdk_wayland_monitor_get_wl_output(output->monitor->gobj());
@ -362,7 +399,9 @@ auto waybar::Bar::toggle() -> void {
window.set_opacity(1);
}
setExclusiveZone(width_, height_);
if (!use_gls_) {
wl_surface_commit(surface);
}
}
void waybar::Bar::getModules(const Factory& factory, const std::string& pos) {