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Merge pull request #783 from f0rki/duplicate-num-assignment

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make waybar itself assign numbers to workspaces like sway
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Alex 2020-07-27 11:44:39 +02:00 committed by GitHub
commit 1f6277e35b
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2 changed files with 40 additions and 3 deletions
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2
include/modules/sway/workspaces.hpp
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@ -22,6 +22,8 @@ class Workspaces : public AModule, public sigc::trackable {
private:
static inline const std::string workspace_switch_cmd_ = "workspace --no-auto-back-and-forth \"{}\"";
static int convertWorkspaceNameToNum(std::string name);
void onCmd(const struct Ipc::ipc_response&);
void onEvent(const struct Ipc::ipc_response&);
bool filterButtons();

41
src/modules/sway/workspaces.cpp
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@ -2,8 +2,27 @@
#include <spdlog/spdlog.h>
#include <cctype>
#include <string>
namespace waybar::modules::sway {
// Helper function to to assign a number to a workspace, just like sway. In fact
// this is taken quite verbatim from `sway/ipc-json.c`.
int Workspaces::convertWorkspaceNameToNum(std::string name) {
if (isdigit(name[0])) {
errno = 0;
char * endptr = NULL;
long long parsed_num = strtoll(name.c_str(), &endptr, 10);
if (errno != 0 || parsed_num > INT32_MAX || parsed_num < 0 || endptr == name.c_str()) {
return -1;
} else {
return (int)parsed_num;
}
}
return -1;
}
Workspaces::Workspaces(const std::string &id, const Bar &bar, const Json::Value &config)
: AModule(config, "workspaces", id, false, !config["disable-scroll"].asBool()),
bar_(bar),
@ -102,13 +121,29 @@ void Workspaces::onCmd(const struct Ipc::ipc_response &res) {
// the "num" property (integer type):
// The workspace number or -1 for workspaces that do
// not start with a number.
auto l = lhs["num"].asInt();
auto r = rhs["num"].asInt();
// We could rely on sway providing this property:
//
// auto l = lhs["num"].asInt();
// auto r = rhs["num"].asInt();
//
// We cannot rely on the "num" property as provided by sway
// via IPC, because persistent workspace might not exist in
// sway's view. However, we need this property also for
// not-yet created persistent workspace. As such, we simply
// duplicate sway's logic of assigning the "num" property
// into waybar (see convertWorkspaceNameToNum). This way the
// sorting should work out even when we include workspaces
// that do not currently exist.
auto lname = lhs["name"].asString();
auto rname = rhs["name"].asString();
int l = convertWorkspaceNameToNum(lname);
int r = convertWorkspaceNameToNum(rname);
if (l == r) {
// in case both integers are the same, lexicographical
// sort. This also covers the case when both don't have a
// number (i.e., l == r == -1).
return lhs["name"].asString() < rhs["name"].asString();
return lname < rname;
}
// one of the workspaces doesn't begin with a number, so