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Raphael Robatsch 2021-10-29 20:33:27 +02:00
parent 7b3700e730
commit 0f81338bb6
11 changed files with 876 additions and 876 deletions
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36
meson.build
View file

@ -1,9 +1,9 @@
project('somebar', ['c', 'cpp'],
version: '0.1.0',
default_options: [
'cpp_std=c++17',
'cpp_args=-Wno-parentheses',
])
version: '0.1.0',
default_options: [
'cpp_std=c++17',
'cpp_args=-Wno-parentheses',
])
wayland_dep = dependency('wayland-client')
wayland_cursor_dep = dependency('wayland-cursor')
@ -14,16 +14,16 @@ pangocairo_dep = dependency('pangocairo')
subdir('protocols')
executable('somebar',
'src/main.cpp',
'src/shm_buffer.cpp',
'src/bar.cpp',
wayland_sources,
dependencies: [
wayland_dep,
wayland_cursor_dep,
cairo_dep,
pango_dep,
pangocairo_dep,
],
install: true,
cpp_args: '-DSOMEBAR_VERSION="@0@"'.format(meson.project_version()))
'src/main.cpp',
'src/shm_buffer.cpp',
'src/bar.cpp',
wayland_sources,
dependencies: [
wayland_dep,
wayland_cursor_dep,
cairo_dep,
pango_dep,
pangocairo_dep,
],
install: true,
cpp_args: '-DSOMEBAR_VERSION="@0@"'.format(meson.project_version()))

24
protocols/meson.build
View file

@ -3,21 +3,21 @@ wayland_scanner = find_program('wayland-scanner')
wayland_protos_dep = dependency('wayland-protocols')
wl_protocol_dir = wayland_protos_dep.get_pkgconfig_variable('pkgdatadir')
wayland_scanner_code = generator(
wayland_scanner,
output: '@BASENAME@-protocol.c',
arguments: ['private-code', '@INPUT@', '@OUTPUT@'])
wayland_scanner,
output: '@BASENAME@-protocol.c',
arguments: ['private-code', '@INPUT@', '@OUTPUT@'])
wayland_scanner_client = generator(
wayland_scanner,
output: '@BASENAME@-client-protocol.h',
arguments: ['client-header', '@INPUT@', '@OUTPUT@'])
wayland_scanner,
output: '@BASENAME@-client-protocol.h',
arguments: ['client-header', '@INPUT@', '@OUTPUT@'])
wayland_xmls = [
wl_protocol_dir + '/stable/xdg-shell/xdg-shell.xml',
wl_protocol_dir + '/unstable/xdg-output/xdg-output-unstable-v1.xml',
'wlr-layer-shell-unstable-v1.xml',
'net-tapesoftware-dwl-wm-unstable-v1.xml',
wl_protocol_dir + '/stable/xdg-shell/xdg-shell.xml',
wl_protocol_dir + '/unstable/xdg-output/xdg-output-unstable-v1.xml',
'wlr-layer-shell-unstable-v1.xml',
'net-tapesoftware-dwl-wm-unstable-v1.xml',
]
wayland_sources = [
wayland_scanner_code.process(wayland_xmls),
wayland_scanner_client.process(wayland_xmls),
wayland_scanner_code.process(wayland_xmls),
wayland_scanner_client.process(wayland_xmls),
]

274
protocols/net-tapesoftware-dwl-wm-unstable-v1.xml
View file

@ -1,164 +1,164 @@
<?xml version="1.0" encoding="UTF-8"?>
<protocol name="net_tapesoftware_dwl_wm_unstable_v1">
<copyright>
Copyright (c) 2021 Raphael Robatsch
<copyright>
Copyright (c) 2021 Raphael Robatsch
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice (including the
next paragraph) shall be included in all copies or substantial portions
of the Software.
The above copyright notice and this permission notice (including the
next paragraph) shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
</copyright>
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
</copyright>
<interface name="znet_tapesoftware_dwl_wm_v1" version="1">
<description summary="control the dwl state">
This interface is exposed as a global in the wl_registry.
<interface name="znet_tapesoftware_dwl_wm_v1" version="1">
<description summary="control the dwl state">
This interface is exposed as a global in the wl_registry.
Clients can use this protocol to receive updates of the window manager
state (active tags, active layout, and focused window).
Clients can also control this state.
Clients can use this protocol to receive updates of the window manager
state (active tags, active layout, and focused window).
Clients can also control this state.
After binding, the client will receive the available tags and layouts
with the 'tag' and 'layout' events. These can be used in subsequent
dwl_wm_monitor_v1.set_tags/set_layout requests, and to interpret the
dwl_wm_monitor_v1.layout/tag events.
</description>
After binding, the client will receive the available tags and layouts
with the 'tag' and 'layout' events. These can be used in subsequent
dwl_wm_monitor_v1.set_tags/set_layout requests, and to interpret the
dwl_wm_monitor_v1.layout/tag events.
</description>
<request name="release" type="destructor">
<description summary="release dwl_wm">
This request indicates that the client will not use the dwl_wm
object any more. Objects that have been created through this instance
are not affected.
</description>
</request>
<request name="release" type="destructor">
<description summary="release dwl_wm">
This request indicates that the client will not use the dwl_wm
object any more. Objects that have been created through this instance
are not affected.
</description>
</request>
<request name="get_monitor">
<description summary="gets a dwl monitor from an output">
Gets a dwl monitor for the specified output. The window manager
state on the output can be controlled using the monitor.
</description>
<arg name="id" type="new_id" interface="znet_tapesoftware_dwl_wm_monitor_v1" />
<arg name="output" type="object" interface="wl_output" />
</request>
<request name="get_monitor">
<description summary="gets a dwl monitor from an output">
Gets a dwl monitor for the specified output. The window manager
state on the output can be controlled using the monitor.
</description>
<arg name="id" type="new_id" interface="znet_tapesoftware_dwl_wm_monitor_v1" />
<arg name="output" type="object" interface="wl_output" />
</request>
<event name="tag">
<description summary="announces the presence of a tag">
This event is sent immediately after binding.
A roundtrip after binding guarantees that the client has received all tags.
</description>
<arg name="name" type="string"/>
</event>
<event name="tag">
<description summary="announces the presence of a tag">
This event is sent immediately after binding.
A roundtrip after binding guarantees that the client has received all tags.
</description>
<arg name="name" type="string"/>
</event>
<event name="layout">
<description summary="announces the presence of a layout">
This event is sent immediately after binding.
A roundtrip after binding guarantees that the client has received all layouts.
</description>
<arg name="name" type="string"/>
</event>
</interface>
<event name="layout">
<description summary="announces the presence of a layout">
This event is sent immediately after binding.
A roundtrip after binding guarantees that the client has received all layouts.
</description>
<arg name="name" type="string"/>
</event>
</interface>
<interface name="znet_tapesoftware_dwl_wm_monitor_v1" version="1">
<description summary="control one monitor">
Observes and controls one monitor.
<interface name="znet_tapesoftware_dwl_wm_monitor_v1" version="1">
<description summary="control one monitor">
Observes and controls one monitor.
Events are double-buffered: Clients should cache all events and only
redraw themselves once the 'frame' event is sent.
Events are double-buffered: Clients should cache all events and only
redraw themselves once the 'frame' event is sent.
Requests are not double-buffered: The compositor will update itself
immediately.
</description>
Requests are not double-buffered: The compositor will update itself
immediately.
</description>
<enum name="tag_state">
<entry name="none" value="0" summary="no state"/>
<entry name="active" value="1" summary="tag is active"/>
<entry name="urgent" value="2" summary="tag has at least one urgent client"/>
</enum>
<enum name="tag_state">
<entry name="none" value="0" summary="no state"/>
<entry name="active" value="1" summary="tag is active"/>
<entry name="urgent" value="2" summary="tag has at least one urgent client"/>
</enum>
<request name="release" type="destructor">
<description summary="release dwl_monitor">
This request indicates that the client is done with this dwl_monitor.
All further requests are ignored.
</description>
</request>
<request name="release" type="destructor">
<description summary="release dwl_monitor">
This request indicates that the client is done with this dwl_monitor.
All further requests are ignored.
</description>
</request>
<event name="selected">
<description summary="updates the selected state of the monitor">
If 'selected' is nonzero, this monitor is the currently selected one.
</description>
<arg name="selected" type="uint"/>
</event>
<event name="selected">
<description summary="updates the selected state of the monitor">
If 'selected' is nonzero, this monitor is the currently selected one.
</description>
<arg name="selected" type="uint"/>
</event>
<event name="tag">
<description summary="updates the state of one tag">
Announces the update of a tag. num_clients and focused_client can be
used to draw client indicators.
</description>
<arg name="tag" type="uint" summary="index of a tag received by the dwl_wm_v1.tag event." />
<arg name="state" type="uint" enum="tag_state"/>
<arg name="num_clients" type="uint" summary="number of clients on this tag"/>
<arg name="focused_client" type="int" summary="out of num_clients. -1 if there is no focused client"/>
</event>
<event name="tag">
<description summary="updates the state of one tag">
Announces the update of a tag. num_clients and focused_client can be
used to draw client indicators.
</description>
<arg name="tag" type="uint" summary="index of a tag received by the dwl_wm_v1.tag event." />
<arg name="state" type="uint" enum="tag_state"/>
<arg name="num_clients" type="uint" summary="number of clients on this tag"/>
<arg name="focused_client" type="int" summary="out of num_clients. -1 if there is no focused client"/>
</event>
<event name="layout">
<description summary="updates the selected layout">
Announces the update of the selected layout.
</description>
<arg name="layout" type="uint" summary="index of a layout received by the dwl_wm_v1.layout event."/>
</event>
<event name="layout">
<description summary="updates the selected layout">
Announces the update of the selected layout.
</description>
<arg name="layout" type="uint" summary="index of a layout received by the dwl_wm_v1.layout event."/>
</event>
<event name="title">
<description summary="updates the focused client">
Announces the update of the selected client.
</description>
<arg name="title" type="string"/>
</event>
<event name="title">
<description summary="updates the focused client">
Announces the update of the selected client.
</description>
<arg name="title" type="string"/>
</event>
<event name="frame">
<description summary="end of status update sequence">
Sent after all other events belonging to the status update has been sent.
Clients should redraw themselves now.
</description>
</event>
<event name="frame">
<description summary="end of status update sequence">
Sent after all other events belonging to the status update has been sent.
Clients should redraw themselves now.
</description>
</event>
<request name="set_tags">
<description summary="sets the active tags on this monitor.">
Changes are applied immediately.
</description>
<arg name="tagmask" type="uint" summary="bitmask of the tags that should be set."/>
<arg name="toggle_tagset" type="uint"/>
</request>
<request name="set_tags">
<description summary="sets the active tags on this monitor.">
Changes are applied immediately.
</description>
<arg name="tagmask" type="uint" summary="bitmask of the tags that should be set."/>
<arg name="toggle_tagset" type="uint"/>
</request>
<request name="set_client_tags">
<description summary="updates the tags of the focused client.">
tags are updated as follows:
new_tags = (current_tags AND and_tags) XOR xor_tags
<request name="set_client_tags">
<description summary="updates the tags of the focused client.">
tags are updated as follows:
new_tags = (current_tags AND and_tags) XOR xor_tags
Changes are applied immediately.
</description>
<arg name="and_tags" type="uint"/>
<arg name="xor_tags" type="uint"/>
</request>
Changes are applied immediately.
</description>
<arg name="and_tags" type="uint"/>
<arg name="xor_tags" type="uint"/>
</request>
<request name="set_layout">
<description summary="sets the active layout on this monitor.">
Changes are applied immediately.
</description>
<arg name="layout" type="uint" summary="index of a layout received by the dwl_wm_v1.layout event."/>
</request>
</interface>
<request name="set_layout">
<description summary="sets the active layout on this monitor.">
Changes are applied immediately.
</description>
<arg name="layout" type="uint" summary="index of a layout received by the dwl_wm_v1.layout event."/>
</request>
</interface>
</protocol>

316
src/bar.cpp
View file

@ -11,44 +11,44 @@
#include "pango/pango-layout.h"
const zwlr_layer_surface_v1_listener Bar::_layerSurfaceListener = {
[](void* owner, zwlr_layer_surface_v1*, uint32_t serial, uint32_t width, uint32_t height)
{
static_cast<Bar*>(owner)->layerSurfaceConfigure(serial, width, height);
}
[](void* owner, zwlr_layer_surface_v1*, uint32_t serial, uint32_t width, uint32_t height)
{
static_cast<Bar*>(owner)->layerSurfaceConfigure(serial, width, height);
}
};
const wl_callback_listener Bar::_frameListener = {
[](void* owner, wl_callback* cb, uint32_t)
{
static_cast<Bar*>(owner)->render();
wl_callback_destroy(cb);
}
[](void* owner, wl_callback* cb, uint32_t)
{
static_cast<Bar*>(owner)->render();
wl_callback_destroy(cb);
}
};
struct Font {
PangoFontDescription* description;
int height {0};
PangoFontDescription* description;
int height {0};
};
static Font getFont()
{
auto fontMap = pango_cairo_font_map_get_default();
if (!fontMap) die("pango_cairo_font_map_get_default");
auto fontDesc = pango_font_description_from_string(font);
if (!fontDesc) die("pango_font_description_from_string");
auto tempContext = pango_font_map_create_context(fontMap);
if (!tempContext) die("pango_font_map_create_context");
auto font = pango_font_map_load_font(fontMap, tempContext, fontDesc);
if (!font) die("pango_font_map_load_font");
auto metrics = pango_font_get_metrics(font, pango_language_get_default());
if (!metrics) die("pango_font_get_metrics");
auto fontMap = pango_cairo_font_map_get_default();
if (!fontMap) die("pango_cairo_font_map_get_default");
auto fontDesc = pango_font_description_from_string(font);
if (!fontDesc) die("pango_font_description_from_string");
auto tempContext = pango_font_map_create_context(fontMap);
if (!tempContext) die("pango_font_map_create_context");
auto font = pango_font_map_load_font(fontMap, tempContext, fontDesc);
if (!font) die("pango_font_map_load_font");
auto metrics = pango_font_get_metrics(font, pango_language_get_default());
if (!metrics) die("pango_font_get_metrics");
auto res = Font {};
res.description = fontDesc;
res.height = PANGO_PIXELS(pango_font_metrics_get_height(metrics));
auto res = Font {};
res.description = fontDesc;
res.height = PANGO_PIXELS(pango_font_metrics_get_height(metrics));
pango_font_metrics_unref(metrics);
g_object_unref(font);
g_object_unref(tempContext);
return res;
pango_font_metrics_unref(metrics);
g_object_unref(font);
g_object_unref(tempContext);
return res;
}
static Font barfont = getFont();
@ -56,27 +56,27 @@ BarComponent::BarComponent() { }
BarComponent::BarComponent(wl_unique_ptr<PangoLayout> layout) : pangoLayout {std::move(layout)} {}
int BarComponent::width() const
{
int w, h;
pango_layout_get_size(pangoLayout.get(), &w, &h);
return PANGO_PIXELS(w);
int w, h;
pango_layout_get_size(pangoLayout.get(), &w, &h);
return PANGO_PIXELS(w);
}
void BarComponent::setText(const std::string& text)
{
_text = std::make_unique<std::string>(text);
pango_layout_set_text(pangoLayout.get(), _text->c_str(), _text->size());
_text = std::make_unique<std::string>(text);
pango_layout_set_text(pangoLayout.get(), _text->c_str(), _text->size());
}
Bar::Bar(Monitor* mon)
{
_mon = mon;
_pangoContext.reset(pango_font_map_create_context(pango_cairo_font_map_get_default()));
if (!_pangoContext) die("pango_font_map_create_context");
for (auto i=0u; i<tagNames.size(); i++) {
_tags.push_back({ ZNET_TAPESOFTWARE_DWL_WM_MONITOR_V1_TAG_STATE_NONE, 0, 0, createComponent(tagNames[i]) });
}
_layoutCmp = createComponent();
_titleCmp = createComponent();
_statusCmp = createComponent();
_mon = mon;
_pangoContext.reset(pango_font_map_create_context(pango_cairo_font_map_get_default()));
if (!_pangoContext) die("pango_font_map_create_context");
for (auto i=0u; i<tagNames.size(); i++) {
_tags.push_back({ ZNET_TAPESOFTWARE_DWL_WM_MONITOR_V1_TAG_STATE_NONE, 0, 0, createComponent(tagNames[i]) });
}
_layoutCmp = createComponent();
_titleCmp = createComponent();
_statusCmp = createComponent();
}
const wl_surface* Bar::surface() const { return _surface.get(); }
@ -84,35 +84,35 @@ bool Bar::visible() const { return _surface.get(); }
void Bar::show(wl_output* output)
{
if (visible()) return;
_surface.reset(wl_compositor_create_surface(compositor));
_layerSurface.reset(zwlr_layer_shell_v1_get_layer_surface(wlrLayerShell,
_surface.get(), nullptr, ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM, "net.tapesoftware.Somebar"));
zwlr_layer_surface_v1_add_listener(_layerSurface.get(), &_layerSurfaceListener, this);
auto anchor = topbar ? ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP : ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM;
zwlr_layer_surface_v1_set_anchor(_layerSurface.get(),
anchor | ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT | ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT);
if (visible()) return;
_surface.reset(wl_compositor_create_surface(compositor));
_layerSurface.reset(zwlr_layer_shell_v1_get_layer_surface(wlrLayerShell,
_surface.get(), nullptr, ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM, "net.tapesoftware.Somebar"));
zwlr_layer_surface_v1_add_listener(_layerSurface.get(), &_layerSurfaceListener, this);
auto anchor = topbar ? ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP : ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM;
zwlr_layer_surface_v1_set_anchor(_layerSurface.get(),
anchor | ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT | ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT);
auto barSize = barfont.height + paddingY * 2;
zwlr_layer_surface_v1_set_size(_layerSurface.get(), 0, barSize);
zwlr_layer_surface_v1_set_exclusive_zone(_layerSurface.get(), barSize);
wl_surface_commit(_surface.get());
auto barSize = barfont.height + paddingY * 2;
zwlr_layer_surface_v1_set_size(_layerSurface.get(), 0, barSize);
zwlr_layer_surface_v1_set_exclusive_zone(_layerSurface.get(), barSize);
wl_surface_commit(_surface.get());
}
void Bar::hide()
{
if (!visible()) return;
_layerSurface.reset();
_surface.reset();
_bufs.reset();
if (!visible()) return;
_layerSurface.reset();
_surface.reset();
_bufs.reset();
}
void Bar::setTag(int tag, znet_tapesoftware_dwl_wm_monitor_v1_tag_state state, int numClients, int focusedClient)
{
auto& t = _tags[tag];
t.state = state;
t.numClients = numClients;
t.focusedClient = focusedClient;
auto& t = _tags[tag];
t.state = state;
t.numClients = numClients;
t.focusedClient = focusedClient;
}
void Bar::setSelected(bool selected) { _selected = selected; }
void Bar::setLayout(int layout) { _layoutCmp.setText(layoutNames[layout]); }
@ -121,142 +121,142 @@ void Bar::setStatus(const std::string& status) { _statusCmp.setText(status); }
void Bar::invalidate()
{
if (_invalid || !visible()) return;
_invalid = true;
auto frame = wl_surface_frame(_surface.get());
wl_callback_add_listener(frame, &_frameListener, this);
wl_surface_commit(_surface.get());
if (_invalid || !visible()) return;
_invalid = true;
auto frame = wl_surface_frame(_surface.get());
wl_callback_add_listener(frame, &_frameListener, this);
wl_surface_commit(_surface.get());
}
void Bar::click(int x, int, int btn)
{
Arg arg = {0};
Arg* argp = nullptr;
int control = ClkNone;
if (x > _statusCmp.x) {
control = ClkStatusText;
} else if (x > _titleCmp.x) {
control = ClkWinTitle;
} else if (x > _layoutCmp.x) {
control = ClkLayoutSymbol;
} else for (auto tag = _tags.size()-1; tag >= 0; tag--) {
if (x > _tags[tag].component.x) {
control = ClkTagBar;
arg.ui = 1<<tag;
argp = &arg;
break;
}
}
for (auto i = 0u; i < sizeof(buttons)/sizeof(buttons[0]); i++) {
const auto& button = buttons[i];
if (button.control == control && button.btn == btn) {
button.func(*_mon, *(argp ? argp : &button.arg));
return;
}
}
Arg arg = {0};
Arg* argp = nullptr;
int control = ClkNone;
if (x > _statusCmp.x) {
control = ClkStatusText;
} else if (x > _titleCmp.x) {
control = ClkWinTitle;
} else if (x > _layoutCmp.x) {
control = ClkLayoutSymbol;
} else for (auto tag = _tags.size()-1; tag >= 0; tag--) {
if (x > _tags[tag].component.x) {
control = ClkTagBar;
arg.ui = 1<<tag;
argp = &arg;
break;
}
}
for (auto i = 0u; i < sizeof(buttons)/sizeof(buttons[0]); i++) {
const auto& button = buttons[i];
if (button.control == control && button.btn == btn) {
button.func(*_mon, *(argp ? argp : &button.arg));
return;
}
}
}
void Bar::layerSurfaceConfigure(uint32_t serial, uint32_t width, uint32_t height)
{
zwlr_layer_surface_v1_ack_configure(_layerSurface.get(), serial);
_bufs.emplace(width, height, WL_SHM_FORMAT_XRGB8888);
render();
zwlr_layer_surface_v1_ack_configure(_layerSurface.get(), serial);
_bufs.emplace(width, height, WL_SHM_FORMAT_XRGB8888);
render();
}
void Bar::render()
{
if (!visible()) return;
auto img = wl_unique_ptr<cairo_surface_t> {cairo_image_surface_create_for_data(
_bufs->data(),
CAIRO_FORMAT_ARGB32,
_bufs->width,
_bufs->height,
_bufs->stride
)};
auto painter = wl_unique_ptr<cairo_t> {cairo_create(img.get())};
_painter = painter.get();
pango_cairo_update_context(_painter, _pangoContext.get());
_x = 0;
if (!visible()) return;
auto img = wl_unique_ptr<cairo_surface_t> {cairo_image_surface_create_for_data(
_bufs->data(),
CAIRO_FORMAT_ARGB32,
_bufs->width,
_bufs->height,
_bufs->stride
)};
auto painter = wl_unique_ptr<cairo_t> {cairo_create(img.get())};
_painter = painter.get();
pango_cairo_update_context(_painter, _pangoContext.get());
_x = 0;
renderTags();
setColorScheme(_selected ? colorActive : colorInactive);
renderComponent(_layoutCmp);
renderComponent(_titleCmp);
renderStatus();
renderTags();
setColorScheme(_selected ? colorActive : colorInactive);
renderComponent(_layoutCmp);
renderComponent(_titleCmp);
renderStatus();
_painter = nullptr;
wl_surface_attach(_surface.get(), _bufs->buffer(), 0, 0);
wl_surface_damage(_surface.get(), 0, 0, INT_MAX, INT_MAX);
wl_surface_commit(_surface.get());
_bufs->flip();
_invalid = false;
_painter = nullptr;
wl_surface_attach(_surface.get(), _bufs->buffer(), 0, 0);
wl_surface_damage(_surface.get(), 0, 0, INT_MAX, INT_MAX);
wl_surface_commit(_surface.get());
_bufs->flip();
_invalid = false;
}
void Bar::renderTags()
{
for (auto &tag : _tags) {
setColorScheme(
tag.state & ZNET_TAPESOFTWARE_DWL_WM_MONITOR_V1_TAG_STATE_ACTIVE ? colorActive : colorInactive,
tag.state & ZNET_TAPESOFTWARE_DWL_WM_MONITOR_V1_TAG_STATE_URGENT);
renderComponent(tag.component);
auto indicators = std::min(tag.numClients, _bufs->height/2);
for (auto ind = 0; ind < indicators; ind++) {
auto w = ind == tag.focusedClient ? 7 : 1;
cairo_move_to(_painter, tag.component.x, ind*2+0.5);
cairo_rel_line_to(_painter, w, 0);
cairo_close_path(_painter);
cairo_set_line_width(_painter, 1);
cairo_stroke(_painter);
}
}
for (auto &tag : _tags) {
setColorScheme(
tag.state & ZNET_TAPESOFTWARE_DWL_WM_MONITOR_V1_TAG_STATE_ACTIVE ? colorActive : colorInactive,
tag.state & ZNET_TAPESOFTWARE_DWL_WM_MONITOR_V1_TAG_STATE_URGENT);
renderComponent(tag.component);
auto indicators = std::min(tag.numClients, _bufs->height/2);
for (auto ind = 0; ind < indicators; ind++) {
auto w = ind == tag.focusedClient ? 7 : 1;
cairo_move_to(_painter, tag.component.x, ind*2+0.5);
cairo_rel_line_to(_painter, w, 0);
cairo_close_path(_painter);
cairo_set_line_width(_painter, 1);
cairo_stroke(_painter);
}
}
}
void Bar::renderStatus()
{
pango_cairo_update_layout(_painter, _statusCmp.pangoLayout.get());
beginBg();
auto start = _bufs->width - _statusCmp.width() - paddingX*2;
cairo_rectangle(_painter, _x, 0, _bufs->width-_x+start, _bufs->height);
cairo_fill(_painter);
pango_cairo_update_layout(_painter, _statusCmp.pangoLayout.get());
beginBg();
auto start = _bufs->width - _statusCmp.width() - paddingX*2;
cairo_rectangle(_painter, _x, 0, _bufs->width-_x+start, _bufs->height);
cairo_fill(_painter);
_x = start;
renderComponent(_statusCmp);
_x = start;
renderComponent(_statusCmp);
}
void Bar::setColorScheme(const ColorScheme& scheme, bool invert)
{
_colorScheme = invert
? ColorScheme {scheme.bg, scheme.fg}
: ColorScheme {scheme.fg, scheme.bg};
_colorScheme = invert
? ColorScheme {scheme.bg, scheme.fg}
: ColorScheme {scheme.fg, scheme.bg};
}
static void setColor(cairo_t* painter, const Color& color)
{
cairo_set_source_rgba(painter, color.r/255.0, color.g/255.0, color.b/255.0, color.a/255.0);
cairo_set_source_rgba(painter, color.r/255.0, color.g/255.0, color.b/255.0, color.a/255.0);
}
void Bar::beginFg() { setColor(_painter, _colorScheme.fg); }
void Bar::beginBg() { setColor(_painter, _colorScheme.bg); }
void Bar::renderComponent(BarComponent& component)
{
pango_cairo_update_layout(_painter, component.pangoLayout.get());
auto size = component.width() + paddingX*2;
component.x = _x;
pango_cairo_update_layout(_painter, component.pangoLayout.get());
auto size = component.width() + paddingX*2;
component.x = _x;
beginBg();
cairo_rectangle(_painter, _x, 0, size, _bufs->height);
cairo_fill(_painter);
cairo_move_to(_painter, _x+paddingX, paddingY);
beginBg();
cairo_rectangle(_painter, _x, 0, size, _bufs->height);
cairo_fill(_painter);
cairo_move_to(_painter, _x+paddingX, paddingY);
beginFg();
pango_cairo_show_layout(_painter, component.pangoLayout.get());
_x += size;
beginFg();
pango_cairo_show_layout(_painter, component.pangoLayout.get());
_x += size;
}
BarComponent Bar::createComponent(const std::string &initial)
{
auto layout = pango_layout_new(_pangoContext.get());
pango_layout_set_font_description(layout, barfont.description);
auto res = BarComponent {wl_unique_ptr<PangoLayout> {layout}};
res.setText(initial);
return res;
auto layout = pango_layout_new(_pangoContext.get());
pango_layout_set_font_description(layout, barfont.description);
auto res = BarComponent {wl_unique_ptr<PangoLayout> {layout}};
res.setText(initial);
return res;
}

96
src/bar.hpp
View file

@ -11,65 +11,65 @@
#include "shm_buffer.hpp"
class BarComponent {
std::unique_ptr<std::string> _text;
std::unique_ptr<std::string> _text;
public:
BarComponent();
explicit BarComponent(wl_unique_ptr<PangoLayout> layout);
int width() const;
void setText(const std::string& text);
wl_unique_ptr<PangoLayout> pangoLayout;
int x {0};
BarComponent();
explicit BarComponent(wl_unique_ptr<PangoLayout> layout);
int width() const;
void setText(const std::string& text);
wl_unique_ptr<PangoLayout> pangoLayout;
int x {0};
};
struct Tag {
znet_tapesoftware_dwl_wm_monitor_v1_tag_state state;
int numClients;
int focusedClient;
BarComponent component;
znet_tapesoftware_dwl_wm_monitor_v1_tag_state state;
int numClients;
int focusedClient;
BarComponent component;
};
struct Monitor;
class Bar {
static const zwlr_layer_surface_v1_listener _layerSurfaceListener;
static const wl_callback_listener _frameListener;
static const zwlr_layer_surface_v1_listener _layerSurfaceListener;
static const wl_callback_listener _frameListener;
wl_unique_ptr<wl_surface> _surface;
wl_unique_ptr<zwlr_layer_surface_v1> _layerSurface;
wl_unique_ptr<PangoContext> _pangoContext;
Monitor* _mon;
std::optional<ShmBuffer> _bufs;
std::vector<Tag> _tags;
BarComponent _layoutCmp, _titleCmp, _statusCmp;
bool _selected;
bool _invalid {false};
wl_unique_ptr<wl_surface> _surface;
wl_unique_ptr<zwlr_layer_surface_v1> _layerSurface;
wl_unique_ptr<PangoContext> _pangoContext;
Monitor* _mon;
std::optional<ShmBuffer> _bufs;
std::vector<Tag> _tags;
BarComponent _layoutCmp, _titleCmp, _statusCmp;
bool _selected;
bool _invalid {false};
// only vaild during render()
cairo_t* _painter {nullptr};
int _x;
ColorScheme _colorScheme;
// only vaild during render()
cairo_t* _painter {nullptr};
int _x;
ColorScheme _colorScheme;
void layerSurfaceConfigure(uint32_t serial, uint32_t width, uint32_t height);
void render();
void renderTags();
void renderStatus();
void layerSurfaceConfigure(uint32_t serial, uint32_t width, uint32_t height);
void render();
void renderTags();
void renderStatus();
// low-level rendering
void setColorScheme(const ColorScheme& scheme, bool invert = false);
void beginFg();
void beginBg();
void renderComponent(BarComponent& component);
BarComponent createComponent(const std::string& initial = {});
// low-level rendering
void setColorScheme(const ColorScheme& scheme, bool invert = false);
void beginFg();
void beginBg();
void renderComponent(BarComponent& component);
BarComponent createComponent(const std::string& initial = {});
public:
Bar(Monitor *mon);
const wl_surface* surface() const;
bool visible() const;
void show(wl_output* output);
void hide();
void setTag(int tag, znet_tapesoftware_dwl_wm_monitor_v1_tag_state state, int numClients, int focusedClient);
void setSelected(bool selected);
void setLayout(int layout);
void setTitle(const std::string& title);
void setStatus(const std::string& status);
void invalidate();
void click(int x, int y, int btn);
Bar(Monitor *mon);
const wl_surface* surface() const;
bool visible() const;
void show(wl_output* output);
void hide();
void setTag(int tag, znet_tapesoftware_dwl_wm_monitor_v1_tag_state state, int numClients, int focusedClient);
void setSelected(bool selected);
void setLayout(int layout);
void setTitle(const std::string& title);
void setStatus(const std::string& status);
void invalidate();
void click(int x, int y, int btn);
};

12
src/common.hpp
View file

@ -13,12 +13,12 @@
#include "net-tapesoftware-dwl-wm-unstable-v1-client-protocol.h"
struct Color {
Color() {}
constexpr Color(uint8_t r, uint8_t g, uint8_t b, uint8_t a=255) : r(r), g(g), b(b), a(a) { }
uint8_t r, g, b, a {255};
Color() {}
constexpr Color(uint8_t r, uint8_t g, uint8_t b, uint8_t a=255) : r(r), g(g), b(b), a(a) { }
uint8_t r, g, b, a {255};
};
struct ColorScheme {
Color fg, bg;
Color fg, bg;
};
union Arg {
unsigned int ui;
@ -53,8 +53,8 @@ void spawn(Monitor&, const Arg& arg);
template<typename T>
struct wl_deleter;
#define WL_DELETER(type, fn) template<> struct wl_deleter<type> { \
void operator()(type* v) { if(v) fn(v); } \
}
void operator()(type* v) { if(v) fn(v); } \
}
template<typename T>
using wl_unique_ptr = std::unique_ptr<T, wl_deleter<T>>;

12
src/config.def.hpp
View file

@ -17,10 +17,10 @@ constexpr ColorScheme colorActive = {Color(0xee, 0xee, 0xee), Color(0x00, 0x55,
constexpr const char* termcmd[] = {"foot", nullptr};
constexpr Button buttons[] = {
{ ClkTagBar, BTN_LEFT, view, {0} },
{ ClkTagBar, BTN_RIGHT, tag, {0} },
{ ClkTagBar, BTN_MIDDLE, toggletag, {0} },
{ ClkLayoutSymbol, BTN_LEFT, setlayout, {.ui = 0} },
{ ClkLayoutSymbol, BTN_RIGHT, setlayout, {.ui = 2} },
{ ClkStatusText, BTN_RIGHT, spawn, {.v = termcmd} },
{ ClkTagBar, BTN_LEFT, view, {0} },
{ ClkTagBar, BTN_RIGHT, tag, {0} },
{ ClkTagBar, BTN_MIDDLE, toggletag, {0} },
{ ClkLayoutSymbol, BTN_LEFT, setlayout, {.ui = 0} },
{ ClkLayoutSymbol, BTN_RIGHT, setlayout, {.ui = 2} },
{ ClkStatusText, BTN_RIGHT, spawn, {.v = termcmd} },
};

112
src/line_buffer.hpp
View file

@ -9,63 +9,63 @@
// reads data from Reader, and passes complete lines to Consumer.
template<size_t BufSize>
class LineBuffer {
using Iterator = typename std::array<char, BufSize>::iterator;
std::array<char, BufSize> _buffer;
Iterator _bufferedTo;
Iterator _consumedTo;
bool _discardLine {false};
using Iterator = typename std::array<char, BufSize>::iterator;
std::array<char, BufSize> _buffer;
Iterator _bufferedTo;
Iterator _consumedTo;
bool _discardLine {false};
public:
LineBuffer()
: _bufferedTo {_buffer.begin()}
, _consumedTo {_buffer.begin()}
{
}
LineBuffer()
: _bufferedTo {_buffer.begin()}
, _consumedTo {_buffer.begin()}
{
}
template<typename Reader, typename Consumer>
ssize_t readLines(const Reader& reader, const Consumer& consumer)
{
while (true) {
auto bytesRead = reader(_bufferedTo, _buffer.end() - _bufferedTo);
if (bytesRead <= 0) {
return bytesRead;
}
_bufferedTo += bytesRead;
dispatchLines(consumer);
resetBuffer();
}
}
private:
template<typename Consumer>
void dispatchLines(const Consumer& consumer)
{
while (true) {
auto separator = std::find(_consumedTo, _bufferedTo, '\n');
if (separator == _bufferedTo) {
break;
}
size_t lineLength = separator - _consumedTo;
if (!_discardLine) {
consumer(_consumedTo, lineLength);
}
_consumedTo = separator + 1;
_discardLine = false;
}
}
template<typename Reader, typename Consumer>
ssize_t readLines(const Reader& reader, const Consumer& consumer)
{
while (true) {
auto bytesRead = reader(_bufferedTo, _buffer.end() - _bufferedTo);
if (bytesRead <= 0) {
return bytesRead;
}
_bufferedTo += bytesRead;
dispatchLines(consumer);
resetBuffer();
}
}
private:
template<typename Consumer>
void dispatchLines(const Consumer& consumer)
{
while (true) {
auto separator = std::find(_consumedTo, _bufferedTo, '\n');
if (separator == _bufferedTo) {
break;
}
size_t lineLength = separator - _consumedTo;
if (!_discardLine) {
consumer(_consumedTo, lineLength);
}
_consumedTo = separator + 1;
_discardLine = false;
}
}
void resetBuffer()
{
size_t bytesRemaining = _bufferedTo - _consumedTo;
if (bytesRemaining == _buffer.size()) {
// line too long
_discardLine = true;
_consumedTo = _buffer.begin();
_bufferedTo = _buffer.begin();
} else if (bytesRemaining > 0 && _consumedTo > _buffer.begin()) {
// move the last partial message to the front of the buffer, so a full-sized
// message will fit
std::copy(_consumedTo, _bufferedTo, _buffer.begin());
_consumedTo = _buffer.begin();
_bufferedTo = _consumedTo + bytesRemaining;
}
}
void resetBuffer()
{
size_t bytesRemaining = _bufferedTo - _consumedTo;
if (bytesRemaining == _buffer.size()) {
// line too long
_discardLine = true;
_consumedTo = _buffer.begin();
_bufferedTo = _buffer.begin();
} else if (bytesRemaining > 0 && _consumedTo > _buffer.begin()) {
// move the last partial message to the front of the buffer, so a full-sized
// message will fit
std::copy(_consumedTo, _bufferedTo, _buffer.begin());
_consumedTo = _buffer.begin();
_bufferedTo = _consumedTo + bytesRemaining;
}
}
};

778
src/main.cpp
View file

@ -26,26 +26,26 @@
#include "line_buffer.hpp"
struct Monitor {
uint32_t registryName;
std::string xdgName;
wl_unique_ptr<wl_output> wlOutput;
wl_unique_ptr<znet_tapesoftware_dwl_wm_monitor_v1> dwlMonitor;
std::optional<Bar> bar;
bool desiredVisibility {true};
bool hasData;
uint32_t tags;
uint32_t registryName;
std::string xdgName;
wl_unique_ptr<wl_output> wlOutput;
wl_unique_ptr<znet_tapesoftware_dwl_wm_monitor_v1> dwlMonitor;
std::optional<Bar> bar;
bool desiredVisibility {true};
bool hasData;
uint32_t tags;
};
struct SeatPointer {
wl_unique_ptr<wl_pointer> wlPointer;
Bar* focusedBar;
int x, y;
std::vector<int> btns;
wl_unique_ptr<wl_pointer> wlPointer;
Bar* focusedBar;
int x, y;
std::vector<int> btns;
};
struct Seat {
uint32_t name;
wl_unique_ptr<wl_seat> wlSeat;
std::optional<SeatPointer> pointer;
uint32_t name;
wl_unique_ptr<wl_seat> wlSeat;
std::optional<SeatPointer> pointer;
};
static void updatemon(Monitor &mon);
@ -81,238 +81,238 @@ static bool quitting {false};
void view(Monitor& m, const Arg& arg)
{
znet_tapesoftware_dwl_wm_monitor_v1_set_tags(m.dwlMonitor.get(), arg.ui, 1);
znet_tapesoftware_dwl_wm_monitor_v1_set_tags(m.dwlMonitor.get(), arg.ui, 1);
}
void toggleview(Monitor& m, const Arg& arg)
{
znet_tapesoftware_dwl_wm_monitor_v1_set_tags(m.dwlMonitor.get(), m.tags ^ arg.ui, 0);
znet_tapesoftware_dwl_wm_monitor_v1_set_tags(m.dwlMonitor.get(), m.tags ^ arg.ui, 0);
}
void setlayout(Monitor& m, const Arg& arg)
{
znet_tapesoftware_dwl_wm_monitor_v1_set_layout(m.dwlMonitor.get(), arg.ui);
znet_tapesoftware_dwl_wm_monitor_v1_set_layout(m.dwlMonitor.get(), arg.ui);
}
void tag(Monitor& m, const Arg& arg)
{
znet_tapesoftware_dwl_wm_monitor_v1_set_client_tags(m.dwlMonitor.get(), 0, arg.ui);
znet_tapesoftware_dwl_wm_monitor_v1_set_client_tags(m.dwlMonitor.get(), 0, arg.ui);
}
void toggletag(Monitor& m, const Arg& arg)
{
znet_tapesoftware_dwl_wm_monitor_v1_set_client_tags(m.dwlMonitor.get(), 0xffffff, arg.ui);
znet_tapesoftware_dwl_wm_monitor_v1_set_client_tags(m.dwlMonitor.get(), 0xffffff, arg.ui);
}
void spawn(Monitor&, const Arg& arg)
{
if (fork() == 0) {
auto argv = static_cast<char* const*>(arg.v);
setsid();
execvp(argv[0], argv);
fprintf(stderr, "somebar: execvp %s ", argv[0]);
perror(" failed");
exit(1);
}
if (fork() == 0) {
auto argv = static_cast<char* const*>(arg.v);
setsid();
execvp(argv[0], argv);
fprintf(stderr, "somebar: execvp %s ", argv[0]);
perror(" failed");
exit(1);
}
}
static const struct xdg_wm_base_listener xdgWmBaseListener = {
[](void*, xdg_wm_base* sender, uint32_t serial) {
xdg_wm_base_pong(sender, serial);
}
[](void*, xdg_wm_base* sender, uint32_t serial) {
xdg_wm_base_pong(sender, serial);
}
};
static const struct zxdg_output_v1_listener xdgOutputListener = {
.logical_position = [](void*, zxdg_output_v1*, int, int) { },
.logical_size = [](void*, zxdg_output_v1*, int, int) { },
.done = [](void*, zxdg_output_v1*) { },
.name = [](void* mp, zxdg_output_v1* xdgOutput, const char* name) {
auto& monitor = *static_cast<Monitor*>(mp);
monitor.xdgName = name;
zxdg_output_v1_destroy(xdgOutput);
},
.description = [](void*, zxdg_output_v1*, const char*) { },
.logical_position = [](void*, zxdg_output_v1*, int, int) { },
.logical_size = [](void*, zxdg_output_v1*, int, int) { },
.done = [](void*, zxdg_output_v1*) { },
.name = [](void* mp, zxdg_output_v1* xdgOutput, const char* name) {
auto& monitor = *static_cast<Monitor*>(mp);
monitor.xdgName = name;
zxdg_output_v1_destroy(xdgOutput);
},
.description = [](void*, zxdg_output_v1*, const char*) { },
};
static Bar* barFromSurface(const wl_surface *surface)
{
auto mon = std::find_if(begin(monitors), end(monitors), [surface](const Monitor& mon) {
return mon.bar && mon.bar->surface() == surface;
});
return mon != end(monitors) && mon->bar ? &*mon->bar : nullptr;
auto mon = std::find_if(begin(monitors), end(monitors), [surface](const Monitor& mon) {
return mon.bar && mon.bar->surface() == surface;
});
return mon != end(monitors) && mon->bar ? &*mon->bar : nullptr;
}
static const struct wl_pointer_listener pointerListener = {
.enter = [](void* sp, wl_pointer* pointer, uint32_t serial,
wl_surface* surface, wl_fixed_t x, wl_fixed_t y)
{
auto& seat = *static_cast<Seat*>(sp);
seat.pointer->focusedBar = barFromSurface(surface);
if (!cursorImage) {
auto cursorTheme = wl_cursor_theme_load(nullptr, 24, shm);
cursorImage = wl_cursor_theme_get_cursor(cursorTheme, "left_ptr")->images[0];
cursorSurface = wl_compositor_create_surface(compositor);
wl_surface_attach(cursorSurface, wl_cursor_image_get_buffer(cursorImage), 0, 0);
wl_surface_commit(cursorSurface);
}
wl_pointer_set_cursor(pointer, serial, cursorSurface,
cursorImage->hotspot_x, cursorImage->hotspot_y);
},
.leave = [](void* sp, wl_pointer*, uint32_t serial, wl_surface*) {
auto& seat = *static_cast<Seat*>(sp);
seat.pointer->focusedBar = nullptr;
},
.motion = [](void* sp, wl_pointer*, uint32_t, wl_fixed_t x, wl_fixed_t y) {
auto& seat = *static_cast<Seat*>(sp);
seat.pointer->x = wl_fixed_to_int(x);
seat.pointer->y = wl_fixed_to_int(y);
},
.button = [](void* sp, wl_pointer*, uint32_t, uint32_t, uint32_t button, uint32_t pressed) {
auto& seat = *static_cast<Seat*>(sp);
auto it = std::find(begin(seat.pointer->btns), end(seat.pointer->btns), button);
if (pressed == WL_POINTER_BUTTON_STATE_PRESSED && it == end(seat.pointer->btns)) {
seat.pointer->btns.push_back(button);
} else if (pressed == WL_POINTER_BUTTON_STATE_RELEASED && it != end(seat.pointer->btns)) {
seat.pointer->btns.erase(it);
}
},
.axis = [](void* sp, wl_pointer*, uint32_t, uint32_t, wl_fixed_t) { },
.frame = [](void* sp, wl_pointer*) {
auto& seat = *static_cast<Seat*>(sp);
if (!seat.pointer->focusedBar) return;
for (auto btn : seat.pointer->btns) {
seat.pointer->focusedBar->click(seat.pointer->x, seat.pointer->y, btn);
}
seat.pointer->btns.clear();
},
.axis_source = [](void*, wl_pointer*, uint32_t) { },
.axis_stop = [](void*, wl_pointer*, uint32_t, uint32_t) { },
.axis_discrete = [](void*, wl_pointer*, uint32_t, int32_t) { },
.enter = [](void* sp, wl_pointer* pointer, uint32_t serial,
wl_surface* surface, wl_fixed_t x, wl_fixed_t y)
{
auto& seat = *static_cast<Seat*>(sp);
seat.pointer->focusedBar = barFromSurface(surface);
if (!cursorImage) {
auto cursorTheme = wl_cursor_theme_load(nullptr, 24, shm);
cursorImage = wl_cursor_theme_get_cursor(cursorTheme, "left_ptr")->images[0];
cursorSurface = wl_compositor_create_surface(compositor);
wl_surface_attach(cursorSurface, wl_cursor_image_get_buffer(cursorImage), 0, 0);
wl_surface_commit(cursorSurface);
}
wl_pointer_set_cursor(pointer, serial, cursorSurface,
cursorImage->hotspot_x, cursorImage->hotspot_y);
},
.leave = [](void* sp, wl_pointer*, uint32_t serial, wl_surface*) {
auto& seat = *static_cast<Seat*>(sp);
seat.pointer->focusedBar = nullptr;
},
.motion = [](void* sp, wl_pointer*, uint32_t, wl_fixed_t x, wl_fixed_t y) {
auto& seat = *static_cast<Seat*>(sp);
seat.pointer->x = wl_fixed_to_int(x);
seat.pointer->y = wl_fixed_to_int(y);
},
.button = [](void* sp, wl_pointer*, uint32_t, uint32_t, uint32_t button, uint32_t pressed) {
auto& seat = *static_cast<Seat*>(sp);
auto it = std::find(begin(seat.pointer->btns), end(seat.pointer->btns), button);
if (pressed == WL_POINTER_BUTTON_STATE_PRESSED && it == end(seat.pointer->btns)) {
seat.pointer->btns.push_back(button);
} else if (pressed == WL_POINTER_BUTTON_STATE_RELEASED && it != end(seat.pointer->btns)) {
seat.pointer->btns.erase(it);
}
},
.axis = [](void* sp, wl_pointer*, uint32_t, uint32_t, wl_fixed_t) { },
.frame = [](void* sp, wl_pointer*) {
auto& seat = *static_cast<Seat*>(sp);
if (!seat.pointer->focusedBar) return;
for (auto btn : seat.pointer->btns) {
seat.pointer->focusedBar->click(seat.pointer->x, seat.pointer->y, btn);
}
seat.pointer->btns.clear();
},
.axis_source = [](void*, wl_pointer*, uint32_t) { },
.axis_stop = [](void*, wl_pointer*, uint32_t, uint32_t) { },
.axis_discrete = [](void*, wl_pointer*, uint32_t, int32_t) { },
};
static const struct wl_seat_listener seatListener = {
.capabilities = [](void* sp, wl_seat*, uint32_t cap)
{
auto& seat = *static_cast<Seat*>(sp);
auto hasPointer = cap & WL_SEAT_CAPABILITY_POINTER;
if (!seat.pointer && hasPointer) {
auto &pointer = seat.pointer.emplace();
pointer.wlPointer = wl_unique_ptr<wl_pointer> {wl_seat_get_pointer(seat.wlSeat.get())};
wl_pointer_add_listener(seat.pointer->wlPointer.get(), &pointerListener, &seat);
} else if (seat.pointer && !hasPointer) {
seat.pointer.reset();
}
},
.name = [](void*, wl_seat*, const char *name) { }
.capabilities = [](void* sp, wl_seat*, uint32_t cap)
{
auto& seat = *static_cast<Seat*>(sp);
auto hasPointer = cap & WL_SEAT_CAPABILITY_POINTER;
if (!seat.pointer && hasPointer) {
auto &pointer = seat.pointer.emplace();
pointer.wlPointer = wl_unique_ptr<wl_pointer> {wl_seat_get_pointer(seat.wlSeat.get())};
wl_pointer_add_listener(seat.pointer->wlPointer.get(), &pointerListener, &seat);
} else if (seat.pointer && !hasPointer) {
seat.pointer.reset();
}
},
.name = [](void*, wl_seat*, const char *name) { }
};
static const struct znet_tapesoftware_dwl_wm_v1_listener dwlWmListener = {
.tag = [](void*, znet_tapesoftware_dwl_wm_v1*, const char* name) {
tagNames.push_back(name);
},
.layout = [](void*, znet_tapesoftware_dwl_wm_v1*, const char* name) {
layoutNames.push_back(name);
},
.tag = [](void*, znet_tapesoftware_dwl_wm_v1*, const char* name) {
tagNames.push_back(name);
},
.layout = [](void*, znet_tapesoftware_dwl_wm_v1*, const char* name) {
layoutNames.push_back(name);
},
};
static const struct znet_tapesoftware_dwl_wm_monitor_v1_listener dwlWmMonitorListener {
.selected = [](void* mv, znet_tapesoftware_dwl_wm_monitor_v1*, uint32_t selected) {
auto mon = static_cast<Monitor*>(mv);
if (selected) {
selmon = mon;
} else if (selmon == mon) {
selmon = nullptr;
}
mon->bar->setSelected(selected);
},
.tag = [](void* mv, znet_tapesoftware_dwl_wm_monitor_v1*, uint32_t tag, uint32_t state, uint32_t numClients, int32_t focusedClient) {
auto mon = static_cast<Monitor*>(mv);
mon->bar->setTag(tag, static_cast<znet_tapesoftware_dwl_wm_monitor_v1_tag_state>(state), numClients, focusedClient);
uint32_t mask = 1 << tag;
if (state & ZNET_TAPESOFTWARE_DWL_WM_MONITOR_V1_TAG_STATE_ACTIVE) {
mon->tags |= mask;
} else {
mon->tags &= ~mask;
}
},
.layout = [](void* mv, znet_tapesoftware_dwl_wm_monitor_v1*, uint32_t layout) {
auto mon = static_cast<Monitor*>(mv);
mon->bar->setLayout(layout);
},
.title = [](void* mv, znet_tapesoftware_dwl_wm_monitor_v1*, const char* title) {
auto mon = static_cast<Monitor*>(mv);
mon->bar->setTitle(title);
},
.frame = [](void* mv, znet_tapesoftware_dwl_wm_monitor_v1*) {
auto mon = static_cast<Monitor*>(mv);
mon->hasData = true;
updatemon(*mon);
}
.selected = [](void* mv, znet_tapesoftware_dwl_wm_monitor_v1*, uint32_t selected) {
auto mon = static_cast<Monitor*>(mv);
if (selected) {
selmon = mon;
} else if (selmon == mon) {
selmon = nullptr;
}
mon->bar->setSelected(selected);
},
.tag = [](void* mv, znet_tapesoftware_dwl_wm_monitor_v1*, uint32_t tag, uint32_t state, uint32_t numClients, int32_t focusedClient) {
auto mon = static_cast<Monitor*>(mv);
mon->bar->setTag(tag, static_cast<znet_tapesoftware_dwl_wm_monitor_v1_tag_state>(state), numClients, focusedClient);
uint32_t mask = 1 << tag;
if (state & ZNET_TAPESOFTWARE_DWL_WM_MONITOR_V1_TAG_STATE_ACTIVE) {
mon->tags |= mask;
} else {
mon->tags &= ~mask;
}
},
.layout = [](void* mv, znet_tapesoftware_dwl_wm_monitor_v1*, uint32_t layout) {
auto mon = static_cast<Monitor*>(mv);
mon->bar->setLayout(layout);
},
.title = [](void* mv, znet_tapesoftware_dwl_wm_monitor_v1*, const char* title) {
auto mon = static_cast<Monitor*>(mv);
mon->bar->setTitle(title);
},
.frame = [](void* mv, znet_tapesoftware_dwl_wm_monitor_v1*) {
auto mon = static_cast<Monitor*>(mv);
mon->hasData = true;
updatemon(*mon);
}
};
static void setupMonitor(Monitor& monitor) {
monitor.dwlMonitor.reset(znet_tapesoftware_dwl_wm_v1_get_monitor(dwlWm, monitor.wlOutput.get()));
monitor.bar.emplace(&monitor);
monitor.bar->setStatus(lastStatus);
auto xdgOutput = zxdg_output_manager_v1_get_xdg_output(xdgOutputManager, monitor.wlOutput.get());
zxdg_output_v1_add_listener(xdgOutput, &xdgOutputListener, &monitor);
znet_tapesoftware_dwl_wm_monitor_v1_add_listener(monitor.dwlMonitor.get(), &dwlWmMonitorListener, &monitor);
monitor.dwlMonitor.reset(znet_tapesoftware_dwl_wm_v1_get_monitor(dwlWm, monitor.wlOutput.get()));
monitor.bar.emplace(&monitor);
monitor.bar->setStatus(lastStatus);
auto xdgOutput = zxdg_output_manager_v1_get_xdg_output(xdgOutputManager, monitor.wlOutput.get());
zxdg_output_v1_add_listener(xdgOutput, &xdgOutputListener, &monitor);
znet_tapesoftware_dwl_wm_monitor_v1_add_listener(monitor.dwlMonitor.get(), &dwlWmMonitorListener, &monitor);
}
static void updatemon(Monitor& mon)
{
if (!mon.hasData) return;
if (mon.desiredVisibility) {
if (mon.bar->visible()) {
mon.bar->invalidate();
} else {
mon.bar->show(mon.wlOutput.get());
}
} else if (mon.bar->visible()) {
mon.bar->hide();
}
if (!mon.hasData) return;
if (mon.desiredVisibility) {
if (mon.bar->visible()) {
mon.bar->invalidate();
} else {
mon.bar->show(mon.wlOutput.get());
}
} else if (mon.bar->visible()) {
mon.bar->hide();
}
}
// called after we have received the initial batch of globals
static void onReady()
{
requireGlobal(compositor, "wl_compositor");
requireGlobal(shm, "wl_shm");
requireGlobal(wlrLayerShell, "zwlr_layer_shell_v1");
requireGlobal(xdgOutputManager, "zxdg_output_manager_v1");
requireGlobal(dwlWm, "znet_tapesoftware_dwl_wm_v1");
setupStatusFifo();
wl_display_roundtrip(display); // roundtrip so we receive all dwl tags etc.
ready = true;
for (auto& monitor : monitors) {
setupMonitor(monitor);
}
requireGlobal(compositor, "wl_compositor");
requireGlobal(shm, "wl_shm");
requireGlobal(wlrLayerShell, "zwlr_layer_shell_v1");
requireGlobal(xdgOutputManager, "zxdg_output_manager_v1");
requireGlobal(dwlWm, "znet_tapesoftware_dwl_wm_v1");
setupStatusFifo();
wl_display_roundtrip(display); // roundtrip so we receive all dwl tags etc.
ready = true;
for (auto& monitor : monitors) {
setupMonitor(monitor);
}
}
static void setupStatusFifo()
{
for (auto i=0; i<100; i++) {
auto path = std::string{getenv("XDG_RUNTIME_DIR")} + "/somebar-" + std::to_string(i);
auto result = mkfifo(path.c_str(), 0666);
if (result == 0) {
auto fd = open(path.c_str(), O_CLOEXEC | O_NONBLOCK | O_RDONLY);
if (fd < 0) {
diesys("open status fifo reader");
}
statusFifoName = path;
statusFifoFd = fd;
for (auto i=0; i<100; i++) {
auto path = std::string{getenv("XDG_RUNTIME_DIR")} + "/somebar-" + std::to_string(i);
auto result = mkfifo(path.c_str(), 0666);
if (result == 0) {
auto fd = open(path.c_str(), O_CLOEXEC | O_NONBLOCK | O_RDONLY);
if (fd < 0) {
diesys("open status fifo reader");
}
statusFifoName = path;
statusFifoFd = fd;
fd = open(path.c_str(), O_CLOEXEC | O_WRONLY);
if (fd < 0) {
diesys("open status fifo writer");
}
statusFifoWriter = fd;
fd = open(path.c_str(), O_CLOEXEC | O_WRONLY);
if (fd < 0) {
diesys("open status fifo writer");
}
statusFifoWriter = fd;
epoll_event ev = {0};
ev.events = EPOLLIN;
ev.data.fd = statusFifoFd;
if (epoll_ctl(epoll, EPOLL_CTL_ADD, statusFifoFd, &ev) < 0) {
diesys("epoll_ctl add status fifo");
}
return;
} else if (errno != EEXIST) {
diesys("mkfifo");
}
}
epoll_event ev = {0};
ev.events = EPOLLIN;
ev.data.fd = statusFifoFd;
if (epoll_ctl(epoll, EPOLL_CTL_ADD, statusFifoFd, &ev) < 0) {
diesys("epoll_ctl add status fifo");
}
return;
} else if (errno != EEXIST) {
diesys("mkfifo");
}
}
}
const std::string prefixStatus = "status ";
@ -325,243 +325,243 @@ const std::string argSelected = "selected";
template<typename T>
static void updateVisibility(const std::string& name, T updater)
{
auto isCurrent = name == argSelected;
auto isAll = name == argAll;
for (auto& mon : monitors) {
if (isAll ||
isCurrent && &mon == selmon ||
mon.xdgName == name) {
auto newVisibility = updater(mon.desiredVisibility);
if (newVisibility != mon.desiredVisibility) {
mon.desiredVisibility = newVisibility;
updatemon(mon);
}
}
}
auto isCurrent = name == argSelected;
auto isAll = name == argAll;
for (auto& mon : monitors) {
if (isAll ||
isCurrent && &mon == selmon ||
mon.xdgName == name) {
auto newVisibility = updater(mon.desiredVisibility);
if (newVisibility != mon.desiredVisibility) {
mon.desiredVisibility = newVisibility;
updatemon(mon);
}
}
}
}
static LineBuffer<512> _statusBuffer;
static void onStatus()
{
_statusBuffer.readLines(
[](void* p, size_t size) {
return read(statusFifoFd, p, size);
},
[](const char* buffer, size_t n) {
auto str = std::string {buffer, n};
if (str.rfind(prefixStatus, 0) == 0) {
lastStatus = str.substr(prefixStatus.size());
for (auto &monitor : monitors) {
if (monitor.bar) {
monitor.bar->setStatus(lastStatus);
monitor.bar->invalidate();
}
}
} else if (str.rfind(prefixShow, 0) == 0) {
updateVisibility(str.substr(prefixShow.size()), [](bool) { return true; });
} else if (str.rfind(prefixHide, 0) == 0) {
updateVisibility(str.substr(prefixHide.size()), [](bool) { return false; });
} else if (str.rfind(prefixToggle, 0) == 0) {
updateVisibility(str.substr(prefixToggle.size()), [](bool vis) { return !vis; });
}
});
_statusBuffer.readLines(
[](void* p, size_t size) {
return read(statusFifoFd, p, size);
},
[](const char* buffer, size_t n) {
auto str = std::string {buffer, n};
if (str.rfind(prefixStatus, 0) == 0) {
lastStatus = str.substr(prefixStatus.size());
for (auto &monitor : monitors) {
if (monitor.bar) {
monitor.bar->setStatus(lastStatus);
monitor.bar->invalidate();
}
}
} else if (str.rfind(prefixShow, 0) == 0) {
updateVisibility(str.substr(prefixShow.size()), [](bool) { return true; });
} else if (str.rfind(prefixHide, 0) == 0) {
updateVisibility(str.substr(prefixHide.size()), [](bool) { return false; });
} else if (str.rfind(prefixToggle, 0) == 0) {
updateVisibility(str.substr(prefixToggle.size()), [](bool vis) { return !vis; });
}
});
}
struct HandleGlobalHelper {
wl_registry* registry;
uint32_t name;
const char* interface;
wl_registry* registry;
uint32_t name;
const char* interface;
template<typename T>
bool handle(T& store, const wl_interface& iface, int version) {
if (strcmp(interface, iface.name)) return false;
store = static_cast<T>(wl_registry_bind(registry, name, &iface, version));
return true;
}
template<typename T>
bool handle(T& store, const wl_interface& iface, int version) {
if (strcmp(interface, iface.name)) return false;
store = static_cast<T>(wl_registry_bind(registry, name, &iface, version));
return true;
}
};
static void registryHandleGlobal(void*, wl_registry* registry, uint32_t name, const char* interface, uint32_t version)
{
auto reg = HandleGlobalHelper { registry, name, interface };
if (reg.handle(compositor, wl_compositor_interface, 4)) return;
if (reg.handle(shm, wl_shm_interface, 1)) return;
if (reg.handle(wlrLayerShell, zwlr_layer_shell_v1_interface, 4)) return;
if (reg.handle(xdgOutputManager, zxdg_output_manager_v1_interface, 3)) return;
if (reg.handle(xdgWmBase, xdg_wm_base_interface, 2)) {
xdg_wm_base_add_listener(xdgWmBase, &xdgWmBaseListener, nullptr);
return;
}
if (reg.handle(dwlWm, znet_tapesoftware_dwl_wm_v1_interface, 1)) {
znet_tapesoftware_dwl_wm_v1_add_listener(dwlWm, &dwlWmListener, nullptr);
return;
}
if (wl_seat *wlSeat; reg.handle(wlSeat, wl_seat_interface, 7)) {
auto& seat = seats.emplace_back(Seat {name, wl_unique_ptr<wl_seat> {wlSeat}});
wl_seat_add_listener(wlSeat, &seatListener, &seat);
return;
}
if (wl_output *output; reg.handle(output, wl_output_interface, 1)) {
auto& m = monitors.emplace_back(Monitor {name, {}, wl_unique_ptr<wl_output> {output}});
if (ready) {
setupMonitor(m);
}
return;
}
auto reg = HandleGlobalHelper { registry, name, interface };
if (reg.handle(compositor, wl_compositor_interface, 4)) return;
if (reg.handle(shm, wl_shm_interface, 1)) return;
if (reg.handle(wlrLayerShell, zwlr_layer_shell_v1_interface, 4)) return;
if (reg.handle(xdgOutputManager, zxdg_output_manager_v1_interface, 3)) return;
if (reg.handle(xdgWmBase, xdg_wm_base_interface, 2)) {
xdg_wm_base_add_listener(xdgWmBase, &xdgWmBaseListener, nullptr);
return;
}
if (reg.handle(dwlWm, znet_tapesoftware_dwl_wm_v1_interface, 1)) {
znet_tapesoftware_dwl_wm_v1_add_listener(dwlWm, &dwlWmListener, nullptr);
return;
}
if (wl_seat *wlSeat; reg.handle(wlSeat, wl_seat_interface, 7)) {
auto& seat = seats.emplace_back(Seat {name, wl_unique_ptr<wl_seat> {wlSeat}});
wl_seat_add_listener(wlSeat, &seatListener, &seat);
return;
}
if (wl_output *output; reg.handle(output, wl_output_interface, 1)) {
auto& m = monitors.emplace_back(Monitor {name, {}, wl_unique_ptr<wl_output> {output}});
if (ready) {
setupMonitor(m);
}
return;
}
}
static void registryHandleRemove(void*, wl_registry* registry, uint32_t name)
{
monitors.remove_if([name](const Monitor &mon) { return mon.registryName == name; });
seats.remove_if([name](const Seat &seat) { return seat.name == name; });
monitors.remove_if([name](const Monitor &mon) { return mon.registryName == name; });
seats.remove_if([name](const Seat &seat) { return seat.name == name; });
}
static const struct wl_registry_listener registry_listener = {
.global = registryHandleGlobal,
.global_remove = registryHandleRemove,
.global = registryHandleGlobal,
.global_remove = registryHandleRemove,
};
int main(int argc, char* argv[])
{
int opt;
while ((opt = getopt(argc, argv, "chv")) != -1) {
switch (opt) {
case 'h':
printf("Usage: %s [-h] [-v] [-c command]\n", argv[0]);
printf(" -h: Show this help\n");
printf(" -v: Show somebar version\n");
printf(" -c: Sends a command to sombar. See README for details.\n");
printf("If any of these are specified, somebar exits after the action.\n");
printf("Otherwise, somebar will display itself.\n");
exit(0);
case 'v':
printf("somebar " SOMEBAR_VERSION "\n");
exit(0);
case 'c':
if (optind >= argc) {
die("Expected command");
}
auto path = std::string {getenv("XDG_RUNTIME_DIR")} + "/somebar-0";
int fd = open(path.c_str(), O_WRONLY | O_CLOEXEC);
if (fd < 0) {
fprintf(stderr, "could not open %s: ", path.c_str());
perror("");
exit(1);
}
auto str = std::string {};
for (auto i = optind; i<argc; i++) {
if (i > optind) str += " ";
str += argv[i];
}
str += "\n";
write(fd, str.c_str(), str.size());
exit(0);
}
}
static sigset_t blockedsigs;
sigemptyset(&blockedsigs);
sigaddset(&blockedsigs, SIGINT);
sigaddset(&blockedsigs, SIGTERM);
sigprocmask(SIG_BLOCK, &blockedsigs, nullptr);
int opt;
while ((opt = getopt(argc, argv, "chv")) != -1) {
switch (opt) {
case 'h':
printf("Usage: %s [-h] [-v] [-c command]\n", argv[0]);
printf(" -h: Show this help\n");
printf(" -v: Show somebar version\n");
printf(" -c: Sends a command to sombar. See README for details.\n");
printf("If any of these are specified, somebar exits after the action.\n");
printf("Otherwise, somebar will display itself.\n");
exit(0);
case 'v':
printf("somebar " SOMEBAR_VERSION "\n");
exit(0);
case 'c':
if (optind >= argc) {
die("Expected command");
}
auto path = std::string {getenv("XDG_RUNTIME_DIR")} + "/somebar-0";
int fd = open(path.c_str(), O_WRONLY | O_CLOEXEC);
if (fd < 0) {
fprintf(stderr, "could not open %s: ", path.c_str());
perror("");
exit(1);
}
auto str = std::string {};
for (auto i = optind; i<argc; i++) {
if (i > optind) str += " ";
str += argv[i];
}
str += "\n";
write(fd, str.c_str(), str.size());
exit(0);
}
}
static sigset_t blockedsigs;
sigemptyset(&blockedsigs);
sigaddset(&blockedsigs, SIGINT);
sigaddset(&blockedsigs, SIGTERM);
sigprocmask(SIG_BLOCK, &blockedsigs, nullptr);
epoll_event epollEv = {0};
std::array<epoll_event, 5> epollEvents;
epoll = epoll_create1(EPOLL_CLOEXEC);
if (epoll < 0) {
diesys("epoll_create1");
}
int sfd = signalfd(-1, &blockedsigs, SFD_CLOEXEC | SFD_NONBLOCK);
if (sfd < 0) {
diesys("signalfd");
}
epollEv.events = EPOLLIN;
epollEv.data.fd = sfd;
if (epoll_ctl(epoll, EPOLL_CTL_ADD, sfd, &epollEv) < 0) {
diesys("epoll_ctl add signalfd");
}
epoll_event epollEv = {0};
std::array<epoll_event, 5> epollEvents;
epoll = epoll_create1(EPOLL_CLOEXEC);
if (epoll < 0) {
diesys("epoll_create1");
}
int sfd = signalfd(-1, &blockedsigs, SFD_CLOEXEC | SFD_NONBLOCK);
if (sfd < 0) {
diesys("signalfd");
}
epollEv.events = EPOLLIN;
epollEv.data.fd = sfd;
if (epoll_ctl(epoll, EPOLL_CTL_ADD, sfd, &epollEv) < 0) {
diesys("epoll_ctl add signalfd");
}
display = wl_display_connect(nullptr);
if (!display) {
die("Failed to connect to Wayland display");
}
displayFd = wl_display_get_fd(display);
display = wl_display_connect(nullptr);
if (!display) {
die("Failed to connect to Wayland display");
}
displayFd = wl_display_get_fd(display);
auto registry = wl_display_get_registry(display);
wl_registry_add_listener(registry, &registry_listener, nullptr);
wl_display_roundtrip(display);
onReady();
auto registry = wl_display_get_registry(display);
wl_registry_add_listener(registry, &registry_listener, nullptr);
wl_display_roundtrip(display);
onReady();
epollEv.events = EPOLLIN;
epollEv.data.fd = displayFd;
if (epoll_ctl(epoll, EPOLL_CTL_ADD, displayFd, &epollEv) < 0) {
diesys("epoll_ctl add wayland_display");
}
epollEv.events = EPOLLIN;
epollEv.data.fd = displayFd;
if (epoll_ctl(epoll, EPOLL_CTL_ADD, displayFd, &epollEv) < 0) {
diesys("epoll_ctl add wayland_display");
}
while (!quitting) {
waylandFlush();
auto res = epoll_wait(epoll, epollEvents.data(), epollEvents.size(), -1);
if (res < 0) {
if (errno != EINTR) {
diesys("epoll_wait");
}
} else {
for (auto i=0; i<res; i++) {
auto &ev = epollEvents[i];
if (ev.data.fd == displayFd) {
if (ev.events & EPOLLIN) {
if (wl_display_dispatch(display) < 0) {
die("wl_display_dispatch");
}
} if (ev.events & EPOLLOUT) {
epollEv.events = EPOLLIN;
epollEv.data.fd = displayFd;
if (epoll_ctl(epoll, EPOLL_CTL_MOD, displayFd, &epollEv) < 0) {
diesys("epoll_ctl");
}
waylandFlush();
}
} else if (ev.data.fd == statusFifoFd) {
onStatus();
} else if (ev.data.fd == sfd) {
quitting = true;
}
}
}
}
cleanup();
while (!quitting) {
waylandFlush();
auto res = epoll_wait(epoll, epollEvents.data(), epollEvents.size(), -1);
if (res < 0) {
if (errno != EINTR) {
diesys("epoll_wait");
}
} else {
for (auto i=0; i<res; i++) {
auto &ev = epollEvents[i];
if (ev.data.fd == displayFd) {
if (ev.events & EPOLLIN) {
if (wl_display_dispatch(display) < 0) {
die("wl_display_dispatch");
}
} if (ev.events & EPOLLOUT) {
epollEv.events = EPOLLIN;
epollEv.data.fd = displayFd;
if (epoll_ctl(epoll, EPOLL_CTL_MOD, displayFd, &epollEv) < 0) {
diesys("epoll_ctl");
}
waylandFlush();
}
} else if (ev.data.fd == statusFifoFd) {
onStatus();
} else if (ev.data.fd == sfd) {
quitting = true;
}
}
}
}
cleanup();
}
void requireGlobal(const void *p, const char *name)
{
if (p) return;
fprintf(stderr, "Wayland compositor does not export required global %s, aborting.\n", name);
cleanup();
exit(1);
if (p) return;
fprintf(stderr, "Wayland compositor does not export required global %s, aborting.\n", name);
cleanup();
exit(1);
}
void waylandFlush()
{
wl_display_dispatch_pending(display);
if (wl_display_flush(display) < 0 && errno == EAGAIN) {
epoll_event ev = {0};
ev.events = EPOLLIN | EPOLLOUT;
ev.data.fd = displayFd;
if (epoll_ctl(epoll, EPOLL_CTL_MOD, displayFd, &ev) < 0) {
diesys("epoll_ctl");
}
}
wl_display_dispatch_pending(display);
if (wl_display_flush(display) < 0 && errno == EAGAIN) {
epoll_event ev = {0};
ev.events = EPOLLIN | EPOLLOUT;
ev.data.fd = displayFd;
if (epoll_ctl(epoll, EPOLL_CTL_MOD, displayFd, &ev) < 0) {
diesys("epoll_ctl");
}
}
}
void die(const char* why) {
fprintf(stderr, "%s\n", why);
cleanup();
exit(1);
fprintf(stderr, "%s\n", why);
cleanup();
exit(1);
}
void diesys(const char* why) {
perror(why);
cleanup();
exit(1);
perror(why);
cleanup();
exit(1);
}
void cleanup() {
if (!statusFifoName.empty()) {
unlink(statusFifoName.c_str());
}
if (!statusFifoName.empty()) {
unlink(statusFifoName.c_str());
}
}

38
src/shm_buffer.cpp
View file

@ -9,26 +9,26 @@
constexpr int n = 2;
ShmBuffer::ShmBuffer(int w, int h, wl_shm_format format)
: width(w)
, height(h)
, stride(w*4)
: width(w)
, height(h)
, stride(w*4)
{
auto oneSize = stride*size_t(h);
auto totalSize = oneSize * n;
auto fd = memfd_create("wl_shm", MFD_CLOEXEC);
ftruncate(fd, totalSize);
auto pool = wl_shm_create_pool(shm, fd, totalSize);
auto ptr = reinterpret_cast<uint8_t*>(mmap(nullptr, totalSize, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0));
_mapping = MemoryMapping {ptr, totalSize};
close(fd);
for (auto i=0; i<n; i++) {
auto offset = oneSize*i;
_buffers[i] = {
ptr+offset,
wl_unique_ptr<wl_buffer> { wl_shm_pool_create_buffer(pool, offset, width, height, stride, format) },
};
}
wl_shm_pool_destroy(pool);
auto oneSize = stride*size_t(h);
auto totalSize = oneSize * n;
auto fd = memfd_create("wl_shm", MFD_CLOEXEC);
ftruncate(fd, totalSize);
auto pool = wl_shm_create_pool(shm, fd, totalSize);
auto ptr = reinterpret_cast<uint8_t*>(mmap(nullptr, totalSize, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0));
_mapping = MemoryMapping {ptr, totalSize};
close(fd);
for (auto i=0; i<n; i++) {
auto offset = oneSize*i;
_buffers[i] = {
ptr+offset,
wl_unique_ptr<wl_buffer> { wl_shm_pool_create_buffer(pool, offset, width, height, stride, format) },
};
}
wl_shm_pool_destroy(pool);
}
uint8_t* ShmBuffer::data() { return _buffers[_current].data; }

52
src/shm_buffer.hpp
View file

@ -8,38 +8,38 @@
#include "common.hpp"
class MemoryMapping {
void* _ptr {nullptr};
size_t _size {0};
void* _ptr {nullptr};
size_t _size {0};
public:
MemoryMapping() { }
explicit MemoryMapping(void* ptr, size_t size) : _ptr(ptr), _size(size) { }
MemoryMapping(const MemoryMapping&) = delete;
MemoryMapping(MemoryMapping&& other) { swap(other); }
MemoryMapping& operator=(const MemoryMapping& other) = delete;
MemoryMapping& operator=(MemoryMapping&& other) { swap(other); return *this; }
~MemoryMapping() { if (_ptr) munmap(_ptr, _size); }
void swap(MemoryMapping &other) {
using std::swap;
swap(_ptr, other._ptr);
swap(_size, other._size);
}
MemoryMapping() { }
explicit MemoryMapping(void* ptr, size_t size) : _ptr(ptr), _size(size) { }
MemoryMapping(const MemoryMapping&) = delete;
MemoryMapping(MemoryMapping&& other) { swap(other); }
MemoryMapping& operator=(const MemoryMapping& other) = delete;
MemoryMapping& operator=(MemoryMapping&& other) { swap(other); return *this; }
~MemoryMapping() { if (_ptr) munmap(_ptr, _size); }
void swap(MemoryMapping &other) {
using std::swap;
swap(_ptr, other._ptr);
swap(_size, other._size);
}
};
// double buffered shm
// format is must be 32-bit
class ShmBuffer {
struct Buf {
uint8_t* data {nullptr};
wl_unique_ptr<wl_buffer> buffer;
};
std::array<Buf, 2> _buffers;
int _current {0};
MemoryMapping _mapping;
struct Buf {
uint8_t* data {nullptr};
wl_unique_ptr<wl_buffer> buffer;
};
std::array<Buf, 2> _buffers;
int _current {0};
MemoryMapping _mapping;
public:
int width, height, stride;
int width, height, stride;
explicit ShmBuffer(int width, int height, wl_shm_format format);
uint8_t* data();
wl_buffer* buffer();
void flip();
explicit ShmBuffer(int width, int height, wl_shm_format format);
uint8_t* data();
wl_buffer* buffer();
void flip();
};