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lua: expose rich_label link handling mechanism

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Adds `on_link_click` setter. The function set to this will be called with the target of the clicked link.
This commit is contained in:
Subhraman Sarkar 2025-01-21 14:40:38 +05:30
parent ebf04808d3
commit 5c97754115
2 changed files with 34 additions and 0 deletions
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33
src/scripting/lua_widget_attributes.cpp
View File

@ -820,6 +820,25 @@ void dialog_callback(lua_State* L, lua_ptr<gui2::widget>& wp, const std::string&
luaW_callwidgetcallback(L, w, wd, id);
}
void link_callback(lua_State* L, lua_ptr<gui2::widget>& wp, const std::string& id, const std::string& dest)
{
gui2::widget* w = wp.get_ptr();
if(!w) {
ERR_LUA << "widget was deleted";
return;
}
gui2::window* wd = w->get_window();
if(!wd) {
ERR_LUA << "cannot find window in widget callback";
return;
}
luaW_getwidgetcallback(L, w, wd, id);
assert(lua_isfunction(L, -1));
lua_pushstring(L, dest.c_str());
luaW_pushwidget(L, *w);
lua_call(L, 2, 0);
}
WIDGET_SETTER("on_modified", lua_index_raw, gui2::widget)
{
gui2::window* wd = w.get_window();
@ -832,6 +851,20 @@ WIDGET_SETTER("on_modified", lua_index_raw, gui2::widget)
}
}
WIDGET_SETTER("on_link_click", lua_index_raw, gui2::rich_label)
{
gui2::window* wd = w.get_window();
if(!wd) {
throw std::invalid_argument("the widget has no window assigned");
}
lua_pushvalue(L, value.index);
if (!luaW_setwidgetcallback(L, &w, wd, "on_link_click")) {
w.register_link_callback(
std::bind(&link_callback, L, lua_ptr<gui2::widget>(w), "on_link_click", std::placeholders::_1));
}
}
WIDGET_SETTER("on_left_click", lua_index_raw, gui2::widget)
{
gui2::window* wd = w.get_window();

1
utils/emmylua/gui.lua
View File

@ -244,6 +244,7 @@ function gui.add_widget_definition(type, id, content) end
---@class rich_label : simple_widget
---@field link_color string
---@field wrap boolean
---@field on_link_click fun(dest:string)
---A simple image
---@class image : simple_widget