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polybar/include/components/bar.hpp
Michael Carlberg 738fc2a216 feat: Offset window position using %
2016-10-31 05:13:59 +01:00

1116 lines
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#pragma once
#include <xcb/xcb_icccm.h>
#include <mutex>
#include "common.hpp"
#include "components/config.hpp"
#include "components/logger.hpp"
#include "components/parser.hpp"
#include "components/signals.hpp"
#include "components/types.hpp"
#include "components/x11/connection.hpp"
#include "components/x11/draw.hpp"
#include "components/x11/fontmanager.hpp"
#include "components/x11/randr.hpp"
#include "components/x11/tray.hpp"
#include "components/x11/types.hpp"
#include "components/x11/window.hpp"
#include "components/x11/xlib.hpp"
#include "components/x11/xutils.hpp"
#include "utils/bspwm.hpp"
#include "utils/math.hpp"
#include "utils/string.hpp"
#include "utils/threading.hpp"
#include "utils/throttle.hpp"
#if ENABLE_I3
#include "utils/i3.hpp"
#endif
LEMONBUDDY_NS
class bar : public xpp::event::sink<evt::button_press, evt::expose, evt::property_notify> {
public:
/**
* Construct bar
*/
explicit bar(connection& conn, const config& config, const logger& logger,
unique_ptr<fontmanager> fontmanager)
: m_connection(conn)
, m_conf(config)
, m_log(logger)
, m_fontmanager(forward<decltype(fontmanager)>(fontmanager)) {}
/**
* Cleanup signal handlers and destroy the bar window
*/
~bar() {
std::lock_guard<threading_util::spin_lock> lck(m_lock);
// Disconnect signal handlers {{{
g_signals::parser::alignment_change = nullptr;
g_signals::parser::attribute_set = nullptr;
g_signals::parser::attribute_unset = nullptr;
g_signals::parser::attribute_toggle = nullptr;
g_signals::parser::action_block_open = nullptr;
g_signals::parser::action_block_close = nullptr;
g_signals::parser::color_change = nullptr;
g_signals::parser::font_change = nullptr;
g_signals::parser::pixel_offset = nullptr;
g_signals::parser::ascii_text_write = nullptr;
g_signals::parser::unicode_text_write = nullptr;
g_signals::tray::report_slotcount = nullptr;
// }}}
if (m_sinkattached)
m_connection.detach_sink(this, 1);
m_window.destroy();
}
/**
* Create required components
*
* This is done outside the constructor due to boost::di noexcept
*/
void bootstrap(bool nodraw = false) { //{{{
// limit the amount of allowed input events to 1 per 60ms
m_throttler = throttle_util::make_throttler(1, 60ms);
m_screen = m_connection.screen();
m_visual = m_connection.visual_type(m_screen, 32).get();
auto monitors = randr_util::get_monitors(m_connection, m_connection.screen()->root);
auto bs = m_conf.bar_section();
// Look for the defined monitor {{{
if (monitors.empty())
throw application_error("No monitors found");
auto monitor_name = m_conf.get<string>(bs, "monitor", "");
if (monitor_name.empty())
monitor_name = monitors[0]->name;
for (auto&& monitor : monitors) {
if (monitor_name.compare(monitor->name) == 0) {
m_bar.monitor = std::move(monitor);
break;
}
}
if (m_bar.monitor)
m_log.trace("bar: Found matching monitor %s (%ix%i+%i+%i)", m_bar.monitor->name,
m_bar.monitor->w, m_bar.monitor->h, m_bar.monitor->x, m_bar.monitor->y);
else
throw application_error("Could not find monitor: " + monitor_name);
// }}}
// Set bar colors {{{
m_bar.background =
color::parse(m_conf.get<string>(bs, "background", m_bar.background.hex_to_rgba()));
m_bar.foreground =
color::parse(m_conf.get<string>(bs, "foreground", m_bar.foreground.hex_to_rgba()));
m_bar.linecolor =
color::parse(m_conf.get<string>(bs, "linecolor", m_bar.linecolor.hex_to_rgba()));
// }}}
// Set border values {{{
auto bsize = m_conf.get<int>(bs, "border-size", 0);
auto bcolor = m_conf.get<string>(bs, "border-color", "");
m_borders.emplace(border::TOP, border_settings{});
m_borders[border::TOP].size = m_conf.get<int>(bs, "border-top", bsize);
m_borders[border::TOP].color = color::parse(m_conf.get<string>(bs, "border-top-color", bcolor));
m_borders.emplace(border::BOTTOM, border_settings{});
m_borders[border::BOTTOM].size = m_conf.get<int>(bs, "border-bottom", bsize);
m_borders[border::BOTTOM].color =
color::parse(m_conf.get<string>(bs, "border-bottom-color", bcolor));
m_borders.emplace(border::LEFT, border_settings{});
m_borders[border::LEFT].size = m_conf.get<int>(bs, "border-left", bsize);
m_borders[border::LEFT].color =
color::parse(m_conf.get<string>(bs, "border-left-color", bcolor));
m_borders.emplace(border::RIGHT, border_settings{});
m_borders[border::RIGHT].size = m_conf.get<int>(bs, "border-right", bsize);
m_borders[border::RIGHT].color =
color::parse(m_conf.get<string>(bs, "border-right-color", bcolor));
// }}}
// Set size and position {{{
GET_CONFIG_VALUE(bs, m_bar.dock, "dock");
GET_CONFIG_VALUE(bs, m_bar.bottom, "bottom");
GET_CONFIG_VALUE(bs, m_bar.spacing, "spacing");
GET_CONFIG_VALUE(bs, m_bar.lineheight, "lineheight");
GET_CONFIG_VALUE(bs, m_bar.padding_left, "padding-left");
GET_CONFIG_VALUE(bs, m_bar.padding_right, "padding-right");
GET_CONFIG_VALUE(bs, m_bar.module_margin_left, "module-margin-left");
GET_CONFIG_VALUE(bs, m_bar.module_margin_right, "module-margin-right");
auto w = m_conf.get<string>(bs, "width", "100%");
auto h = m_conf.get<string>(bs, "height", "24");
auto offsetx = m_conf.get<string>(bs, "offset-x", "");
auto offsety = m_conf.get<string>(bs, "offset-y", "");
// look for user-defined width
if ((m_bar.width = std::atoi(w.c_str())) && w.find("%") != string::npos) {
m_bar.width = math_util::percentage_to_value<int>(m_bar.width, m_bar.monitor->w);
}
// look for user-defined height
if ((m_bar.height = std::atoi(h.c_str())) && h.find("%") != string::npos) {
m_bar.height = math_util::percentage_to_value<int>(m_bar.height, m_bar.monitor->h);
}
// look for user-defined offset-x
if ((m_bar.offset_x = std::atoi(offsetx.c_str())) != 0 && offsetx.find("%") != string::npos) {
m_bar.offset_x = math_util::percentage_to_value<int>(m_bar.offset_x, m_bar.monitor->w);
}
// look for user-defined offset-y
if ((m_bar.offset_y = std::atoi(offsety.c_str())) != 0 && offsety.find("%") != string::npos) {
m_bar.offset_y = math_util::percentage_to_value<int>(m_bar.offset_y, m_bar.monitor->h);
}
// apply offsets
m_bar.x = m_bar.offset_x + m_bar.monitor->x;
m_bar.y = m_bar.offset_y + m_bar.monitor->y;
// apply borders
m_bar.height += m_borders[border::TOP].size;
m_bar.height += m_borders[border::BOTTOM].size;
if (m_bar.bottom)
m_bar.y = m_bar.monitor->y + m_bar.monitor->h - m_bar.height - m_bar.offset_y;
if (m_bar.width <= 0 || m_bar.width > m_bar.monitor->w)
throw application_error("Resulting bar width is out of bounds");
if (m_bar.height <= 0 || m_bar.height > m_bar.monitor->h)
throw application_error("Resulting bar height is out of bounds");
m_bar.width = math_util::cap<int>(m_bar.width, 0, m_bar.monitor->w);
m_bar.height = math_util::cap<int>(m_bar.height, 0, m_bar.monitor->h);
m_bar.vertical_mid =
(m_bar.height + m_borders[border::TOP].size - m_borders[border::BOTTOM].size) / 2;
m_log.trace("bar: Resulting bar geom %ix%i+%i+%i", m_bar.width, m_bar.height, m_bar.x, m_bar.y);
// }}}
// Set the WM_NAME value {{{
m_bar.wmname = "lemonbuddy-" + bs.substr(4) + "_" + m_bar.monitor->name;
m_bar.wmname = m_conf.get<string>(bs, "wm-name", m_bar.wmname);
m_bar.wmname = string_util::replace(m_bar.wmname, " ", "-");
// }}}
// Set misc parameters {{{
m_bar.separator = string_util::trim(m_conf.get<string>(bs, "separator", ""), '"');
m_bar.locale = m_conf.get<string>(bs, "locale", "");
// }}}
// Checking nodraw {{{
if (nodraw) {
m_log.trace("bar: Abort bootstrap routine (reason: nodraw)");
return;
}
// }}}
// Setup graphic components and create the window {{{
m_log.trace("bar: Create colormap");
{
m_connection.create_colormap_checked(
XCB_COLORMAP_ALLOC_NONE, m_colormap, m_screen->root, m_visual->visual_id);
}
m_log.trace("bar: Create window %s", m_connection.id(m_window));
{
uint32_t mask = 0;
xcb_params_cw_t params;
// clang-format off
XCB_AUX_ADD_PARAM(&mask, &params, back_pixel, 0);
XCB_AUX_ADD_PARAM(&mask, &params, border_pixel, 0);
XCB_AUX_ADD_PARAM(&mask, &params, colormap, m_colormap);
XCB_AUX_ADD_PARAM(&mask, &params, override_redirect, m_bar.dock);
XCB_AUX_ADD_PARAM(&mask, &params, event_mask, XCB_EVENT_MASK_PROPERTY_CHANGE | XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_BUTTON_PRESS);
// clang-format on
m_window.create_checked(m_bar.x, m_bar.y, m_bar.width, m_bar.height, mask, &params);
}
m_log.trace("bar: Set WM_NAME");
{
xcb_icccm_set_wm_name(
m_connection, m_window, XCB_ATOM_STRING, 8, m_bar.wmname.length(), m_bar.wmname.c_str());
xcb_icccm_set_wm_class(m_connection, m_window, 21, "lemonbuddy\0Lemonbuddy");
}
m_log.trace("bar: Set _NET_WM_WINDOW_TYPE");
{
const uint32_t win_types[1] = {_NET_WM_WINDOW_TYPE_DOCK};
m_connection.change_property_checked(
XCB_PROP_MODE_REPLACE, m_window, _NET_WM_WINDOW_TYPE, XCB_ATOM_ATOM, 32, 1, win_types);
}
m_log.trace("bar: Set _NET_WM_STATE");
{
const uint32_t win_states[2] = {_NET_WM_STATE_STICKY, _NET_WM_STATE_ABOVE};
m_connection.change_property_checked(
XCB_PROP_MODE_REPLACE, m_window, _NET_WM_STATE, XCB_ATOM_ATOM, 32, 2, win_states);
}
m_log.trace("bar: Set _NET_WM_STRUT_PARTIAL");
{
uint32_t none{0};
uint32_t value_list[12]{none};
if (m_bar.bottom) {
value_list[3] = m_bar.height;
value_list[10] = m_bar.x;
value_list[11] = m_bar.x + m_bar.width;
} else {
value_list[2] = m_bar.height;
value_list[8] = m_bar.x;
value_list[9] = m_bar.x + m_bar.width;
}
m_connection.change_property_checked(XCB_PROP_MODE_REPLACE, m_window, _NET_WM_STRUT_PARTIAL,
XCB_ATOM_CARDINAL, 32, 12, value_list);
}
m_log.trace("bar: Set _NET_WM_DESKTOP");
{
const uint32_t value_list[1]{-1u};
m_connection.change_property_checked(
XCB_PROP_MODE_REPLACE, m_window, _NET_WM_DESKTOP, XCB_ATOM_CARDINAL, 32, 1, value_list);
}
m_log.trace("bar: Set _NET_WM_PID");
{
const uint32_t value_list[1]{uint32_t(getpid())};
m_connection.change_property_checked(
XCB_PROP_MODE_REPLACE, m_window, _NET_WM_PID, XCB_ATOM_CARDINAL, 32, 1, value_list);
}
m_log.trace("bar: Create pixmap");
{
m_connection.create_pixmap_checked(
m_visual->visual_id == m_screen->root_visual ? XCB_COPY_FROM_PARENT : 32, m_pixmap,
m_window, m_bar.width, m_bar.height);
}
m_log.trace("bar: Map window");
{
m_connection.flush();
m_connection.map_window_checked(m_window);
}
// }}}
// Restack window and put it above defined WM's root {{{
try {
auto wm_restack = m_conf.get<string>(bs, "wm-restack");
auto restacked = false;
if (wm_restack == "bspwm") {
restacked = bspwm_util::restack_above_root(m_connection, m_bar.monitor, m_window);
} else if (wm_restack == "i3" && m_bar.dock && ENABLE_I3) {
#if ENABLE_I3
restacked = i3_util::restack_above_root(m_connection, m_bar.monitor, m_window);
#endif
} else if (wm_restack == "i3" && !m_bar.dock) {
m_log.warn("Ignoring restack of i3 window (not needed when dock = false)");
wm_restack.clear();
} else {
m_log.warn("Ignoring unsupported wm-restack option '%s'", wm_restack);
wm_restack.clear();
}
if (restacked) {
m_log.info("Successfully restacked bar window");
} else if (!wm_restack.empty()) {
m_log.err("Failed to restack bar window");
}
} catch (const key_error& err) {
}
// }}}
// Create graphic contexts {{{
m_log.trace("bar: Create graphic contexts");
{
// clang-format off
vector<uint32_t> colors {
m_bar.background.value(),
m_bar.foreground.value(),
m_bar.linecolor.value(),
m_bar.linecolor.value(),
m_borders[border::TOP].color.value(),
m_borders[border::BOTTOM].color.value(),
m_borders[border::LEFT].color.value(),
m_borders[border::RIGHT].color.value(),
};
// clang-format on
for (int i = 1; i <= 8; i++) {
uint32_t mask = 0;
uint32_t value_list[32];
xcb_params_gc_t params;
XCB_AUX_ADD_PARAM(&mask, &params, foreground, colors[i - 1]);
XCB_AUX_ADD_PARAM(&mask, &params, graphics_exposures, 0);
xutils::pack_values(mask, &params, value_list);
m_gcontexts.emplace(gc(i), gcontext{m_connection, m_connection.generate_id()});
m_connection.create_gc_checked(m_gcontexts.at(gc(i)), m_pixmap, mask, value_list);
}
}
// }}}
// Load fonts {{{
auto fonts_loaded = false;
auto fontindex = 0;
auto fonts = m_conf.get_list<string>(bs, "font");
for (auto f : fonts) {
fontindex++;
vector<string> fd = string_util::split(f, ';');
string pattern{fd[0]};
int offset{0};
if (fd.size() > 1)
offset = std::stoi(fd[1], 0, 10);
if (m_fontmanager->load(pattern, fontindex, offset))
fonts_loaded = true;
else
m_log.warn("Unable to load font '%s'", fd[0]);
}
if (!fonts_loaded) {
m_log.warn("Loading fallback font");
if (!m_fontmanager->load("fixed"))
throw application_error("Unable to load fonts");
}
m_fontmanager->allocate_color(m_bar.foreground);
// }}}
// Set tray settings {{{
try {
auto tray_position = m_conf.get<string>(bs, "tray-position");
if (tray_position == "left")
m_tray.align = alignment::LEFT;
else if (tray_position == "right")
m_tray.align = alignment::RIGHT;
else if (tray_position == "center")
m_tray.align = alignment::CENTER;
else
m_tray.align = alignment::NONE;
} catch (const key_error& err) {
m_tray.align = alignment::NONE;
}
if (m_tray.align != alignment::NONE) {
m_tray.height = m_bar.height;
m_tray.height -= m_borders.at(border::BOTTOM).size;
m_tray.height -= m_borders.at(border::TOP).size;
m_tray.height_fill = m_tray.height;
if (m_tray.height % 2 != 0) {
m_tray.height--;
}
auto maxsize = m_conf.get<int>(bs, "tray-maxsize", 16);
if (m_tray.height > maxsize) {
m_tray.spacing += (m_tray.height - maxsize) / 2;
m_tray.height = maxsize;
}
m_tray.width = m_tray.height;
m_tray.orig_y = m_bar.y + m_borders.at(border::TOP).size;
// Apply user-defined scaling
auto scale = m_conf.get<float>(bs, "tray-scale", 1.0);
m_tray.width *= scale;
m_tray.height_fill *= scale;
if (m_tray.align == alignment::RIGHT) {
m_tray.orig_x = m_bar.x + m_bar.width - m_borders.at(border::RIGHT).size;
} else if (m_tray.align == alignment::LEFT) {
m_tray.orig_x = m_bar.x + m_borders.at(border::LEFT).size;
} else if (m_tray.align == alignment::CENTER) {
m_tray.orig_x = center_x() - (m_tray.width / 2);
}
// Set user-defined background color
try {
auto tray_background = m_conf.get<string>(bs, "tray-background");
m_tray.background = color::parse(tray_background).value();
} catch (const key_error&) {
m_tray.background = m_bar.background.value();
}
// Add user-defined padding
m_tray.spacing += m_conf.get<int>(bs, "tray-padding", 0);
// Add user-defiend offset
auto offset_x_def = m_conf.get<string>(bs, "tray-offset-x", "");
auto offset_y_def = m_conf.get<string>(bs, "tray-offset-y", "");
auto offset_x = std::atoi(offset_x_def.c_str());
auto offset_y = std::atoi(offset_y_def.c_str());
if (offset_x != 0 && offset_x_def.find("%") != string::npos) {
offset_x = math_util::percentage_to_value(offset_x, m_bar.monitor->w);
offset_x -= m_tray.width / 2;
}
if (offset_y != 0 && offset_y_def.find("%") != string::npos) {
offset_y = math_util::percentage_to_value(offset_y, m_bar.monitor->h);
offset_y -= m_tray.width / 2;
}
m_tray.orig_x += offset_x;
m_tray.orig_y += offset_y;
// Add tray update callback unless explicitly disabled
if (!m_conf.get<bool>(bs, "tray-detached", false)) {
g_signals::tray::report_slotcount = bind(&bar::on_tray_report, this, placeholders::_1);
}
// Put the tray next to the bar in the window stack
m_tray.sibling = m_window;
}
// }}}
// Connect signal handlers {{{
// clang-format off
g_signals::parser::alignment_change = bind(&bar::on_alignment_change, this, placeholders::_1);
g_signals::parser::attribute_set = bind(&bar::on_attribute_set, this, placeholders::_1);
g_signals::parser::attribute_unset = bind(&bar::on_attribute_unset, this, placeholders::_1);
g_signals::parser::attribute_toggle = bind(&bar::on_attribute_toggle, this, placeholders::_1);
g_signals::parser::action_block_open = bind(&bar::on_action_block_open, this, placeholders::_1, placeholders::_2);
g_signals::parser::action_block_close = bind(&bar::on_action_block_close, this, placeholders::_1);
g_signals::parser::color_change = bind(&bar::on_color_change, this, placeholders::_1, placeholders::_2);
g_signals::parser::font_change = bind(&bar::on_font_change, this, placeholders::_1);
g_signals::parser::pixel_offset = bind(&bar::on_pixel_offset, this, placeholders::_1);
g_signals::parser::ascii_text_write = bind(&bar::draw_character, this, placeholders::_1);
g_signals::parser::unicode_text_write = bind(&bar::draw_character, this, placeholders::_1);
// clang-format on
// }}}
m_connection.attach_sink(this, 1);
m_sinkattached = true;
m_connection.flush();
} //}}}
/**
* Parse input string and redraw the bar window
*
* @param data Input string
* @param force Unless true, do not parse unchanged data
*/
void parse(string data, bool force = false) { //{{{
std::lock_guard<threading_util::spin_lock> lck(m_lock);
{
if (data == m_prevdata && !force)
return;
m_prevdata = data;
// TODO: move to fontmanager
m_xftdraw = XftDrawCreate(xlib::get_display(), m_pixmap, xlib::get_visual(), m_colormap);
m_bar.align = alignment::LEFT;
m_xpos = m_borders[border::LEFT].size;
m_attributes = 0;
#if DEBUG and DRAW_CLICKABLE_AREA_HINTS
for (auto&& action : m_actions) {
m_connection.destroy_window(action.clickable_area);
}
#endif
m_actions.clear();
draw_background();
if (m_tray.align == alignment::LEFT && m_tray.slots)
m_xpos += ((m_tray.width + m_tray.spacing) * m_tray.slots) + m_tray.spacing;
try {
parser parser(m_bar);
parser(data);
} catch (const unrecognized_token& err) {
m_log.err("Unrecognized syntax token '%s'", err.what());
}
if (m_tray.align == alignment::RIGHT && m_tray.slots)
draw_shift(m_xpos, ((m_tray.width + m_tray.spacing) * m_tray.slots) + m_tray.spacing);
draw_border(border::ALL);
flush();
XftDrawDestroy(m_xftdraw);
}
} //}}}
/**
* Copy the contents of the pixmap's onto the bar window
*/
void flush() { //{{{
m_connection.copy_area(
m_pixmap, m_window, m_gcontexts.at(gc::FG), 0, 0, 0, 0, m_bar.width, m_bar.height);
m_connection.copy_area(
m_pixmap, m_window, m_gcontexts.at(gc::BT), 0, 0, 0, 0, m_bar.width, m_bar.height);
m_connection.copy_area(
m_pixmap, m_window, m_gcontexts.at(gc::BB), 0, 0, 0, 0, m_bar.width, m_bar.height);
m_connection.copy_area(
m_pixmap, m_window, m_gcontexts.at(gc::BL), 0, 0, 0, 0, m_bar.width, m_bar.height);
m_connection.copy_area(
m_pixmap, m_window, m_gcontexts.at(gc::BR), 0, 0, 0, 0, m_bar.width, m_bar.height);
m_connection.flush();
#if DEBUG and DRAW_CLICKABLE_AREA_HINTS
map<alignment, int> hint_num{{
{alignment::LEFT, 0}, {alignment::CENTER, 0}, {alignment::RIGHT, 0},
}};
#endif
for (auto&& action : m_actions) {
if (action.active) {
m_log.warn("Action block not closed");
m_log.warn("action.command = %s", action.command);
} else {
m_log.trace_x("bar: Action details (button = %i, start_x = %i, end_x = %i, command = '%s')",
static_cast<int>(action.button), action.start_x, action.end_x, action.command);
#if DEBUG and DRAW_CLICKABLE_AREA_HINTS
m_log.info("Drawing clickable area hints");
hint_num[action.align]++;
auto x = action.start_x;
auto y = m_bar.y + hint_num[action.align]++ * DRAW_CLICKABLE_AREA_HINTS_OFFSET_Y;
auto w = action.end_x - action.start_x - 2;
auto h = m_bar.height - 2;
const uint32_t mask = XCB_CW_BORDER_PIXEL | XCB_CW_OVERRIDE_REDIRECT;
const uint32_t border_color = hint_num[action.align] % 2 ? 0xff0000 : 0x00ff00;
const uint32_t values[2]{border_color, true};
auto scr = m_connection.screen();
action.clickable_area = m_connection.generate_id();
m_connection.create_window_checked(scr->root_depth, action.clickable_area, scr->root, x, y,
w, h, 1, XCB_WINDOW_CLASS_INPUT_OUTPUT, scr->root_visual, mask, values);
m_connection.map_window_checked(action.clickable_area);
#endif
}
}
} //}}}
/**
* Get the bar settings container
*/
const bar_settings settings() const { // {{{
return m_bar;
} // }}}
/**
* Get the tray settings container
*/
const tray_settings tray() const { // {{{
return m_tray;
} // }}}
/**
* Mouse button event handler
*/
void handle(const evt::button_press& evt) { // {{{
if (!m_throttler->passthrough(throttle_util::strategy::try_once_or_leave_yolo{})) {
return;
}
std::lock_guard<threading_util::spin_lock> lck(m_lock);
{
m_log.trace_x("bar: Received button press event: %i at pos(%i, %i)",
static_cast<int>(evt->detail), evt->event_x, evt->event_y);
mousebtn button = static_cast<mousebtn>(evt->detail);
for (auto&& action : m_actions) {
if (action.active) {
m_log.trace_x("bar: Ignoring action: unclosed)");
continue;
} else if (action.button != button) {
m_log.trace_x("bar: Ignoring action: button mismatch");
continue;
} else if (action.start_x > evt->event_x) {
m_log.trace_x(
"bar: Ignoring action: start_x(%i) > event_x(%i)", action.start_x, evt->event_x);
continue;
} else if (action.end_x < evt->event_x) {
m_log.trace_x(
"bar: Ignoring action: end_x(%i) < event_x(%i)", action.end_x, evt->event_x);
continue;
}
m_log.trace("Found matching input area");
m_log.trace_x("action.command = %s", action.command);
m_log.trace_x("action.button = %i", static_cast<int>(action.button));
m_log.trace_x("action.start_x = %i", action.start_x);
m_log.trace_x("action.end_x = %i", action.end_x);
if (g_signals::bar::action_click)
g_signals::bar::action_click(action.command);
else
m_log.warn("No signal handler's connected to 'action_click'");
return;
}
m_log.warn("No matching input area found");
}
} // }}}
/**
* Event handler for XCB_EXPOSE events
*/
void handle(const evt::expose& evt) { // {{{
if (evt->window != m_window)
return;
m_log.trace("bar: Received expose event");
flush();
} // }}}
/**
* Event handler for XCB_PROPERTY_NOTIFY events
*
* Used to emit events whenever the bar window's
* visibility gets changes. This allows us to toggle the
* state of the tray container even though the tray
* window restacking failed.
*
* This is used as a fallback for tedious WM's, like i3.
*
* Some might call it a dirty hack, others a crappy
* solution... I choose to call it a masterpiece! Plus
* it's not really any overhead worth talking about.
*/
void handle(const evt::property_notify& evt) { // {{{
if (evt->window == m_window && evt->atom == WM_STATE) {
if (!g_signals::bar::visibility_change)
return;
try {
auto attr = m_connection.get_window_attributes(m_window);
if (attr->map_state == XCB_MAP_STATE_VIEWABLE)
g_signals::bar::visibility_change(true);
else if (attr->map_state == XCB_MAP_STATE_UNVIEWABLE)
g_signals::bar::visibility_change(false);
else if (attr->map_state == XCB_MAP_STATE_UNMAPPED)
g_signals::bar::visibility_change(false);
else
g_signals::bar::visibility_change(true);
} catch (const std::exception& err) {
m_log.warn("Failed to emit bar window's visibility change event");
}
}
} // }}}
protected:
/**
* Get the horizontal center pos
*/
int center_x() {
int x = m_bar.x;
x += m_bar.width;
x -= m_borders[border::RIGHT].size;
x += m_borders[border::LEFT].size;
x /= 2;
return x;
}
/**
* Get the inner width of the bar
*/
int width_inner() {
auto w = m_bar.width;
w -= m_borders[border::RIGHT].size;
w -= m_borders[border::LEFT].size;
return w;
}
/**
* Handle alignment update
*/
void on_alignment_change(alignment align) { //{{{
if (align == m_bar.align)
return;
m_log.trace_x("bar: alignment_change(%i)", static_cast<int>(align));
m_bar.align = align;
if (align == alignment::LEFT) {
m_xpos = m_borders[border::LEFT].size;
} else if (align == alignment::RIGHT) {
m_xpos = m_borders[border::RIGHT].size;
} else {
m_xpos = 0;
}
} //}}}
/**
* Handle attribute on state
*/
void on_attribute_set(attribute attr) { //{{{
int val{static_cast<int>(attr)};
if ((m_attributes & val) != 0)
return;
m_log.trace_x("bar: attribute_set(%i)", val);
m_attributes |= val;
} //}}}
/**
* Handle attribute off state
*/
void on_attribute_unset(attribute attr) { //{{{
int val{static_cast<int>(attr)};
if ((m_attributes & val) == 0)
return;
m_log.trace_x("bar: attribute_unset(%i)", val);
m_attributes ^= val;
} //}}}
/**
* Handle attribute toggle state
*/
void on_attribute_toggle(attribute attr) { //{{{
int val{static_cast<int>(attr)};
m_log.trace_x("bar: attribute_toggle(%i)", val);
m_attributes ^= val;
} //}}}
/**
* Handle action block start
*/
void on_action_block_open(mousebtn btn, string cmd) { //{{{
if (btn == mousebtn::NONE)
btn = mousebtn::LEFT;
m_log.trace_x("bar: action_block_open(%i, %s)", static_cast<int>(btn), cmd);
action_block action;
action.active = true;
action.align = m_bar.align;
action.button = btn;
action.start_x = m_xpos;
action.command = string_util::replace_all(cmd, ":", "\\:");
m_actions.emplace_back(action);
} //}}}
/**
* Handle action block end
*/
void on_action_block_close(mousebtn btn) { //{{{
m_log.trace_x("bar: action_block_close(%i)", static_cast<int>(btn));
for (auto i = m_actions.size(); i > 0; i--) {
auto& action = m_actions[i - 1];
if (!action.active || action.button != btn)
continue;
action.active = false;
if (action.align == alignment::LEFT) {
action.end_x = m_xpos;
} else if (action.align == alignment::CENTER) {
int base_x = m_bar.width;
base_x -= m_borders[border::RIGHT].size;
base_x /= 2;
base_x += m_borders[border::LEFT].size;
int clickable_width = m_xpos - action.start_x;
action.start_x = base_x - clickable_width / 2 + action.start_x / 2;
action.end_x = action.start_x + clickable_width;
} else if (action.align == alignment::RIGHT) {
int base_x = m_bar.width - m_borders[border::RIGHT].size;
action.start_x = base_x - m_xpos + action.start_x;
action.end_x = base_x;
}
return;
}
} //}}}
/**
* Handle color change
*/
void on_color_change(gc gc_, color color_) { //{{{
m_log.trace_x("bar: color_change(%i, %s -> %s)", static_cast<int>(gc_), color_.hex_to_rgba(),
color_.hex_to_rgb());
if (gc_ == gc::FG) {
m_fontmanager->allocate_color(color_);
m_xfont_color = color_.value();
} else {
const uint32_t value_list[32]{color_.value()};
m_connection.change_gc(m_gcontexts.at(gc_), XCB_GC_FOREGROUND, value_list);
}
} //}}}
/**
* Handle font change
*/
void on_font_change(int index) { //{{{
m_log.trace_x("bar: font_change(%i)", index);
m_fontmanager->set_preferred_font(index);
} //}}}
/**
* Handle pixel offsetting
*/
void on_pixel_offset(int px) { //{{{
m_log.trace_x("bar: pixel_offset(%i)", px);
draw_shift(m_xpos, px);
m_xpos += px;
} //}}}
/**
* Proess systray report
*/
void on_tray_report(uint16_t slots) { // {{{
if (m_tray.slots == slots)
return;
m_log.trace("bar: tray_report(%lu)", slots);
m_tray.slots = slots;
if (!m_prevdata.empty())
parse(m_prevdata, true);
} // }}}
/**
* Draw background onto the pixmap
*/
void draw_background() { //{{{
draw_util::fill(
m_connection, m_pixmap, m_gcontexts.at(gc::BG), 0, 0, m_bar.width, m_bar.height);
} //}}}
/**
* Draw borders onto the pixmap
*/
void draw_border(border border_) { //{{{
switch (border_) {
case border::NONE:
break;
case border::TOP:
if (m_borders[border::TOP].size > 0) {
draw_util::fill(m_connection, m_pixmap, m_gcontexts.at(gc::BT),
m_borders[border::LEFT].size, 0,
m_bar.width - m_borders[border::LEFT].size - m_borders[border::RIGHT].size,
m_borders[border::TOP].size);
}
break;
case border::BOTTOM:
if (m_borders[border::BOTTOM].size > 0) {
draw_util::fill(m_connection, m_pixmap, m_gcontexts.at(gc::BB),
m_borders[border::LEFT].size, m_bar.height - m_borders[border::BOTTOM].size,
m_bar.width - m_borders[border::LEFT].size - m_borders[border::RIGHT].size,
m_borders[border::BOTTOM].size);
}
break;
case border::LEFT:
if (m_borders[border::LEFT].size > 0) {
draw_util::fill(m_connection, m_pixmap, m_gcontexts.at(gc::BL), 0, 0,
m_borders[border::LEFT].size, m_bar.height);
}
break;
case border::RIGHT:
if (m_borders[border::RIGHT].size > 0) {
draw_util::fill(m_connection, m_pixmap, m_gcontexts.at(gc::BR),
m_bar.width - m_borders[border::RIGHT].size, 0, m_borders[border::RIGHT].size,
m_bar.height);
}
break;
case border::ALL:
draw_border(border::TOP);
draw_border(border::BOTTOM);
draw_border(border::LEFT);
draw_border(border::RIGHT);
break;
}
} //}}}
/**
* Draw over- and underline onto the pixmap
*/
void draw_lines(int x, int w) { //{{{
if (!m_bar.lineheight)
return;
if (m_attributes & static_cast<int>(attribute::o))
draw_util::fill(m_connection, m_pixmap, m_gcontexts.at(gc::OL), x,
m_borders[border::TOP].size, w, m_bar.lineheight);
if (m_attributes & static_cast<int>(attribute::u))
draw_util::fill(m_connection, m_pixmap, m_gcontexts.at(gc::UL), x,
m_bar.height - m_borders[border::BOTTOM].size - m_bar.lineheight, w, m_bar.lineheight);
} //}}}
/**
* Shift the contents of the pixmap horizontally
*/
int draw_shift(int x, int chr_width) { //{{{
int delta = chr_width;
if (m_bar.align == alignment::CENTER) {
int base_x = m_bar.width;
base_x -= m_borders[border::RIGHT].size;
base_x /= 2;
base_x += m_borders[border::LEFT].size;
m_connection.copy_area(m_pixmap, m_pixmap, m_gcontexts.at(gc::FG), base_x - x / 2, 0,
base_x - (x + chr_width) / 2, 0, x, m_bar.height);
x = base_x - (x + chr_width) / 2 + x;
delta /= 2;
} else if (m_bar.align == alignment::RIGHT) {
m_connection.copy_area(m_pixmap, m_pixmap, m_gcontexts.at(gc::FG), m_bar.width - x, 0,
m_bar.width - x - chr_width, 0, x, m_bar.height);
x = m_bar.width - chr_width - m_borders[border::RIGHT].size;
}
draw_util::fill(
m_connection, m_pixmap, m_gcontexts.at(gc::BG), x, 0, m_bar.width - x, m_bar.height);
// Translate pos of clickable areas
if (m_bar.align != alignment::LEFT)
for (auto&& action : m_actions) {
if (action.active || action.align != m_bar.align)
continue;
action.start_x -= delta;
action.end_x -= delta;
}
return x;
} //}}}
/**
* Draw text contents
*/
void draw_character(uint16_t character) { // {{{
// TODO: cache
auto& font = m_fontmanager->match_char(character);
if (!font) {
m_log.warn("No suitable font found for character at index %i", character);
return;
}
if (font->ptr && font->ptr != m_gcfont) {
m_gcfont = font->ptr;
m_fontmanager->set_gcontext_font(m_gcontexts.at(gc::FG), m_gcfont);
}
if (font->ptr && m_xfont_color != 0) {
m_log.trace_x("bar: Set gcontext color for xcb font");
const uint32_t values[1]{m_xfont_color};
m_connection.change_gc(m_gcontexts.at(gc::FG), XCB_GC_FOREGROUND, values);
m_xfont_color = 0;
}
// TODO: cache
auto chr_width = m_fontmanager->char_width(font, character);
// Avoid odd glyph width's for center-aligned text
// since it breaks the positioning of clickable area's
if (m_bar.align == alignment::CENTER && chr_width % 2)
chr_width++;
auto x = draw_shift(m_xpos, chr_width);
auto y = m_bar.vertical_mid + font->height / 2 - font->descent + font->offset_y;
// m_log.trace("Draw char(%c, width: %i) at pos(%i,%i)", character, chr_width, x, y);
if (font->xft != nullptr) {
auto color = m_fontmanager->xftcolor();
XftDrawString16(m_xftdraw, &color, font->xft, x, y, &character, 1);
} else {
character = (character >> 8) | (character << 8);
draw_util::xcb_poly_text_16_patched(
m_connection, m_pixmap, m_gcontexts.at(gc::FG), x, y, 1, &character);
}
draw_lines(x, chr_width);
m_xpos += chr_width;
} // }}}
private:
connection& m_connection;
const config& m_conf;
const logger& m_log;
unique_ptr<fontmanager> m_fontmanager;
threading_util::spin_lock m_lock;
throttle_util::throttle_t m_throttler;
xcb_screen_t* m_screen;
xcb_visualtype_t* m_visual;
window m_window{m_connection};
colormap m_colormap{m_connection, m_connection.generate_id()};
pixmap m_pixmap{m_connection, m_connection.generate_id()};
bar_settings m_bar;
tray_settings m_tray;
map<border, border_settings> m_borders;
map<gc, gcontext> m_gcontexts;
vector<action_block> m_actions;
stateflag m_sinkattached{false};
string m_prevdata;
int m_xpos{0};
int m_attributes{0};
uint32_t m_xfont_color{0};
xcb_font_t m_gcfont{0};
XftDraw* m_xftdraw;
};
namespace {
/**
* Configure injection module
*/
template <typename T = unique_ptr<bar>>
di::injector<T> configure_bar() {
// clang-format off
return di::make_injector(
configure_connection(),
configure_config(),
configure_logger(),
configure_fontmanager());
// clang-format on
}
}
LEMONBUDDY_NS_END
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