mirror of https://github.com/polybar/polybar.git
44 lines
1.0 KiB
C++
44 lines
1.0 KiB
C++
#include "x11/cursor.hpp"
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#include "utils/scope.hpp"
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POLYBAR_NS
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namespace cursor_util {
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bool valid(const string& name) {
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return (cursors.find(name) != cursors.end());
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}
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bool set_cursor(xcb_connection_t* c, xcb_screen_t* screen, xcb_window_t w, const string& name) {
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if (!valid(name)) {
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throw std::runtime_error("Tried to set cursor to invalid name: '" + name + "'");
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}
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xcb_cursor_context_t* ctx;
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if (xcb_cursor_context_new(c, screen, &ctx) < 0) {
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return false;
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}
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scope_util::on_exit handler([&] { xcb_cursor_context_free(ctx); });
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xcb_cursor_t cursor = XCB_CURSOR_NONE;
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for (const auto& cursor_name : cursors.at(name)) {
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cursor = xcb_cursor_load_cursor(ctx, cursor_name.c_str());
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if (cursor != XCB_CURSOR_NONE) {
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break;
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}
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}
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if (cursor == XCB_CURSOR_NONE) {
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return false;
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}
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xcb_change_window_attributes(c, w, XCB_CW_CURSOR, &cursor);
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xcb_free_cursor(c, cursor);
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return true;
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}
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} // namespace cursor_util
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POLYBAR_NS_END
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