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Formspec: Make dropdowns optionally return event based on index, not value (#9496)
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@ -2443,7 +2443,7 @@ Elements
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* `color` is color specified as a `ColorString`.
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If the alpha component is left blank, the box will be semitransparent.
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### `dropdown[<X>,<Y>;<W>;<name>;<item 1>,<item 2>, ...,<item n>;<selected idx>]`
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### `dropdown[<X>,<Y>;<W>;<name>;<item 1>,<item 2>, ...,<item n>;<selected idx>;<index event>]`
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* Show a dropdown field
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* **Important note**: There are two different operation modes:
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@ -2454,8 +2454,12 @@ Elements
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* Fieldname data is transferred to Lua
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* Items to be shown in dropdown
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* Index of currently selected dropdown item
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* `index event` (optional, allowed parameter since formspec version 4): Specifies the
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event field value for selected items.
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* `true`: Selected item index
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* `false` (default): Selected item value
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### `dropdown[<X>,<Y>;<W>,<H>;<name>;<item 1>,<item 2>, ...,<item n>;<selected idx>]`
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### `dropdown[<X>,<Y>;<W>,<H>;<name>;<item 1>,<item 2>, ...,<item n>;<selected idx>;<index event>]`
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* Show a dropdown field
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* **Important note**: This syntax for dropdowns can only be used with the
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@ -2468,6 +2472,10 @@ Elements
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* Fieldname data is transferred to Lua
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* Items to be shown in dropdown
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* Index of currently selected dropdown item
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* `index event` (optional, allowed parameter since formspec version 4): Specifies the
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event field value for selected items.
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* `true`: Selected item index
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* `false` (default): Selected item value
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### `checkbox[<X>,<Y>;<name>;<label>;<selected>]`
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@ -4491,7 +4499,8 @@ Call these functions only at load time!
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* `button` and variants: If pressed, contains the user-facing button
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text as value. If not pressed, is `nil`
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* `field`, `textarea` and variants: Text in the field
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* `dropdown`: Text of selected item
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* `dropdown`: Either the index or value, depending on the `index event`
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dropdown argument.
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* `tabheader`: Tab index, starting with `"1"` (only if tab changed)
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* `checkbox`: `"true"` if checked, `"false"` if unchecked
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* `textlist`: See `minetest.explode_textlist_event`
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@ -1318,19 +1318,20 @@ void GUIFormSpecMenu::parseTextList(parserData* data, const std::string &element
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errorstream<< "Invalid textlist element(" << parts.size() << "): '" << element << "'" << std::endl;
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}
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void GUIFormSpecMenu::parseDropDown(parserData* data, const std::string &element)
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{
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std::vector<std::string> parts = split(element,';');
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std::vector<std::string> parts = split(element, ';');
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if ((parts.size() == 5) ||
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((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
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if (parts.size() == 5 || parts.size() == 6 ||
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(parts.size() > 6 && m_formspec_version > FORMSPEC_API_VERSION))
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{
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std::vector<std::string> v_pos = split(parts[0],',');
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std::vector<std::string> v_pos = split(parts[0], ',');
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std::string name = parts[2];
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std::vector<std::string> items = split(parts[3],',');
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std::string str_initial_selection;
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str_initial_selection = parts[4];
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std::vector<std::string> items = split(parts[3], ',');
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std::string str_initial_selection = parts[4];
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if (parts.size() >= 6 && is_yes(parts[5]))
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m_dropdown_index_event[name] = true;
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MY_CHECKPOS("dropdown",0);
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@ -1397,8 +1398,8 @@ void GUIFormSpecMenu::parseDropDown(parserData* data, const std::string &element
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return;
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}
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errorstream << "Invalid dropdown element(" << parts.size() << "): '"
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<< element << "'" << std::endl;
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errorstream << "Invalid dropdown element(" << parts.size() << "): '" << element
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<< "'" << std::endl;
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}
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void GUIFormSpecMenu::parseFieldCloseOnEnter(parserData *data, const std::string &element)
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@ -1414,8 +1415,8 @@ void GUIFormSpecMenu::parsePwdField(parserData* data, const std::string &element
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{
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std::vector<std::string> parts = split(element,';');
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if ((parts.size() == 4) ||
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((parts.size() > 4) && (m_formspec_version > FORMSPEC_API_VERSION)))
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if (parts.size() == 4 ||
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(parts.size() > 4 && m_formspec_version > FORMSPEC_API_VERSION))
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{
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std::vector<std::string> v_pos = split(parts[0],',');
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std::vector<std::string> v_geom = split(parts[1],',');
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@ -2940,6 +2941,8 @@ void GUIFormSpecMenu::regenerateGui(v2u32 screensize)
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theme_by_name.clear();
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theme_by_type.clear();
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m_clickthrough_elements.clear();
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field_close_on_enter.clear();
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m_dropdown_index_event.clear();
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m_bgnonfullscreen = true;
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m_bgfullscreen = false;
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@ -3727,10 +3730,14 @@ void GUIFormSpecMenu::acceptInput(FormspecQuitMode quitmode=quit_mode_no)
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}
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s32 selected = e->getSelected();
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if (selected >= 0) {
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std::vector<std::string> *dropdown_values =
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getDropDownValues(s.fname);
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if (dropdown_values && selected < (s32)dropdown_values->size()) {
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fields[name] = (*dropdown_values)[selected];
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if (m_dropdown_index_event.find(s.fname) !=
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m_dropdown_index_event.end()) {
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fields[name] = std::to_string(selected + 1);
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} else {
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std::vector<std::string> *dropdown_values =
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getDropDownValues(s.fname);
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if (dropdown_values && selected < (s32)dropdown_values->size())
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fields[name] = (*dropdown_values)[selected];
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}
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}
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} else if (s.ftype == f_TabHeader) {
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@ -303,6 +303,7 @@ protected:
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std::vector<ListRingSpec> m_inventory_rings;
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std::vector<gui::IGUIElement *> m_backgrounds;
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std::unordered_map<std::string, bool> field_close_on_enter;
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std::unordered_map<std::string, bool> m_dropdown_index_event;
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std::vector<FieldSpec> m_fields;
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std::vector<std::pair<FieldSpec, GUITable *>> m_tables;
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std::vector<std::pair<FieldSpec, gui::IGUICheckBox *>> m_checkboxes;
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@ -238,8 +238,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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bgcolor[]: use 3 parameters (bgcolor, formspec (now an enum), fbgcolor)
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box[] and image[] elements enable clipping by default
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new element: scroll_container[]
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FORMSPEC VERSION 4:
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Allow dropdown indexing events
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*/
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#define FORMSPEC_API_VERSION 3
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#define FORMSPEC_API_VERSION 4
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#define TEXTURENAME_ALLOWED_CHARS "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_.-"
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