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menu: support submenus
Support submenus defined as follows: <menu id="submenu" label="Submenu"> <item label="item1.1"></item> <item label="item1.2"></item> </menu> <menu id="root-menu" label=""> <menu id="submenu" /> <item label="item0"></item> </menu>
This commit is contained in:
Johan Malm
parent
ddf6555557
commit
b878db57a7
4 changed files with 260 additions and 116 deletions
337
src/menu/menu.c
337
src/menu/menu.c
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@ -19,21 +19,58 @@
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#include "menu/menu.h"
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#include "theme.h"
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/* state-machine variables for processing <item></item> */
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static bool in_item;
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static struct menuitem *current_item;
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#define MENUWIDTH (110)
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#define MENU_ITEM_PADDING_Y (4)
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#define MENU_ITEM_PADDING_X (7)
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/* state-machine variables for processing <item></item> */
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static bool in_item;
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static struct menuitem *current_item;
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static struct menu *current_menu;
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/* vector for <menu id="" label=""> elements */
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static struct menu *menus;
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static int nr_menus, alloc_menus;
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static struct menu *
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menu_create(struct server *server, const char *id, const char *label)
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{
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if (nr_menus == alloc_menus) {
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alloc_menus = (alloc_menus + 16) * 2;
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menus = realloc(menus, alloc_menus * sizeof(struct menu));
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}
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struct menu *menu = menus + nr_menus;
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memset(menu, 0, sizeof(*menu));
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nr_menus++;
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wl_list_init(&menu->menuitems);
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menu->id = strdup(id);
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menu->label = strdup(label);
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menu->server = server;
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return menu;
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}
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static struct menu *
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get_menu_by_id(const char *id)
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{
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struct menu *menu;
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for (int i = 0; i < nr_menus; ++i) {
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menu = menus + i;
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if (!strcmp(menu->id, id)) {
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return menu;
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}
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}
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return NULL;
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}
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static struct menuitem *
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menuitem_create(struct server *server, struct menu *menu, const char *text)
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item_create(struct menu *menu, const char *text)
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{
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struct menuitem *menuitem = calloc(1, sizeof(struct menuitem));
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if (!menuitem) {
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return NULL;
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}
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struct server *server = menu->server;
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struct theme *theme = server->theme;
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struct font font = {
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.name = rc.font_name_menuitem,
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@ -58,26 +95,27 @@ menuitem_create(struct server *server, struct menu *menu, const char *text)
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return menuitem;
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}
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static void fill_item(char *nodename, char *content, struct menu *menu)
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/*
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* Handle the following:
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* <item label="">
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* <action name="">
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* <command></command>
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* </action>
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* </item>
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*/
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static void
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fill_item(char *nodename, char *content)
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{
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string_truncate_at_pattern(nodename, ".item.menu");
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if (getenv("LABWC_DEBUG_MENU_NODENAMES")) {
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printf("%s: %s\n", nodename, content);
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}
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/*
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* Handle the following:
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* <item label="">
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* <action name="">
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* <command></command>
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* </action>
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* </item>
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*/
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/* <item label=""> defines the start of a new item */
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if (!strcmp(nodename, "label")) {
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current_item = menuitem_create(menu->server, menu, content);
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current_item = item_create(current_menu, content);
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}
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if (!current_item) {
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wlr_log(WLR_ERROR, "expect <item label=\"\"> element first");
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return;
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}
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assert(current_item);
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if (!strcmp(nodename, "name.action")) {
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current_item->action = strdup(content);
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} else if (!strcmp(nodename, "command.action")) {
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@ -86,78 +124,100 @@ static void fill_item(char *nodename, char *content, struct menu *menu)
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}
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static void
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entry(xmlNode *node, char *nodename, char *content, struct menu *menu)
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entry(xmlNode *node, char *nodename, char *content)
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{
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static bool in_root_menu;
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if (!nodename) {
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if (!nodename || !content) {
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return;
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}
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string_truncate_at_pattern(nodename, ".openbox_menu");
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if (!content) {
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return;
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}
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if (!strcmp(nodename, "id.menu")) {
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in_root_menu = !strcmp(content, "root-menu") ? true : false;
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}
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/* We only handle the root-menu for the time being */
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if (!in_root_menu) {
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return;
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}
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if (in_item) {
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fill_item(nodename, content, menu);
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fill_item(nodename, content);
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}
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}
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static void
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process_node(xmlNode *node, struct menu *menu)
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process_node(xmlNode *node)
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{
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char *content;
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static char buffer[256];
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char *name;
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content = (char *)node->content;
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char *content = (char *)node->content;
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if (xmlIsBlankNode(node)) {
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return;
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}
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name = nodename(node, buffer, sizeof(buffer));
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entry(node, name, content, menu);
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char *name = nodename(node, buffer, sizeof(buffer));
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entry(node, name, content);
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}
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static void xml_tree_walk(xmlNode *node, struct menu *menu);
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static void xml_tree_walk(xmlNode *node, struct server *server);
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static void
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traverse(xmlNode *n, struct menu *menu)
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traverse(xmlNode *n, struct server *server)
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{
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xmlAttr *attr;
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process_node(n, menu);
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process_node(n);
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for (attr = n->properties; attr; attr = attr->next) {
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xml_tree_walk(attr->children, menu);
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xml_tree_walk(attr->children, server);
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}
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xml_tree_walk(n->children, menu);
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xml_tree_walk(n->children, server);
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}
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/*
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* <menu> elements have three different roles:
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* * Definition of (sub)menu - has ID, LABEL and CONTENT
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* * Menuitem of pipemenu type - has EXECUTE and LABEL
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* * Menuitem of submenu type - has ID only
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*/
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static void
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handle_menu_element(xmlNode *n, struct server *server)
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{
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char *label = (char *)xmlGetProp(n, (const xmlChar *)"label");
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char *execute = (char *)xmlGetProp(n, (const xmlChar *)"execute");
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char *id = (char *)xmlGetProp(n, (const xmlChar *)"id");
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if (execute) {
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wlr_log(WLR_ERROR, "we do not support pipemenus");
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} else if (label && id) {
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current_menu = menu_create(server, id, label);
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/* TODO: deal with nested menu definitions */
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} else if (id) {
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struct menu *menu = get_menu_by_id(id);
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if (menu) {
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current_item = item_create(current_menu, menu->label);
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current_item->submenu = menu;
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} else {
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wlr_log(WLR_ERROR, "no menu with id '%s'", id);
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}
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}
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zfree(label);
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zfree(execute);
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zfree(id);
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}
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static void
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xml_tree_walk(xmlNode *node, struct menu *menu)
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xml_tree_walk(xmlNode *node, struct server *server)
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{
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for (xmlNode *n = node; n && n->name; n = n->next) {
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if (!strcasecmp((char *)n->name, "comment")) {
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continue;
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}
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if (!strcasecmp((char *)n->name, "menu")) {
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handle_menu_element(n, server);
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traverse(n, server);
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continue;
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}
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if (!strcasecmp((char *)n->name, "item")) {
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in_item = true;
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traverse(n, menu);
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traverse(n, server);
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in_item = false;
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continue;
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}
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traverse(n, menu);
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traverse(n, server);
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}
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}
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static void
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parse_xml(const char *filename, struct menu *menu)
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parse_xml(const char *filename, struct server *server)
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{
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FILE *stream;
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char *line = NULL;
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@ -188,56 +248,17 @@ parse_xml(const char *filename, struct menu *menu)
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xmlDoc *d = xmlParseMemory(b.buf, b.len);
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if (!d) {
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wlr_log(WLR_ERROR, "xmlParseMemory()");
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exit(EXIT_FAILURE);
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goto err;
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}
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xml_tree_walk(xmlDocGetRootElement(d), menu);
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xml_tree_walk(xmlDocGetRootElement(d), server);
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xmlFreeDoc(d);
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xmlCleanupParser();
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err:
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free(b.buf);
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}
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void
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menu_init_rootmenu(struct server *server, struct menu *menu)
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{
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static bool has_run;
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if (!has_run) {
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LIBXML_TEST_VERSION
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wl_list_init(&menu->menuitems);
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server->rootmenu = menu;
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menu->server = server;
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}
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parse_xml("menu.xml", menu);
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/* Default menu if no menu.xml found */
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if (wl_list_empty(&menu->menuitems)) {
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current_item = menuitem_create(server, menu, "Reconfigure");
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current_item->action = strdup("Reconfigure");
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current_item = menuitem_create(server, menu, "Exit");
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current_item->action = strdup("Exit");
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}
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menu_move(menu, 100, 100);
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}
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void
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menu_finish(struct menu *menu)
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{
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struct menuitem *menuitem, *next;
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wl_list_for_each_safe(menuitem, next, &menu->menuitems, link) {
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zfree(menuitem->action);
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zfree(menuitem->command);
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wl_list_remove(&menuitem->link);
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free(menuitem);
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}
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}
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/*
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* TODO: call this menu_configure and return the size of the menu so that
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* a background color can be rendered
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*/
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void
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menu_move(struct menu *menu, int x, int y)
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static void
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menu_configure(struct menu *menu, int x, int y)
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{
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menu->box.x = x;
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menu->box.y = y;
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@ -248,19 +269,127 @@ menu_move(struct menu *menu, int x, int y)
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menuitem->box.x = menu->box.x;
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menuitem->box.y = menu->box.y + offset;
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offset += menuitem->box.height;
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if (menuitem->submenu) {
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/* TODO: add offset to rc.xml */
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menu_configure(menuitem->submenu,
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menuitem->box.x + MENUWIDTH + 10,
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menuitem->box.y);
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}
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}
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menu->box.width = MENUWIDTH;
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menu->box.height = offset;
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}
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void
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menu_init_rootmenu(struct server *server)
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{
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parse_xml("menu.xml", server);
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server->rootmenu = get_menu_by_id("root-menu");
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/* Default menu if no menu.xml found */
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if (!server->rootmenu) {
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server->rootmenu = menu_create(server, "root-menu", "");
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}
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if (wl_list_empty(&server->rootmenu->menuitems)) {
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current_item = item_create(server->rootmenu, "Reconfigure");
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current_item->action = strdup("Reconfigure");
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current_item = item_create(server->rootmenu, "Exit");
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current_item->action = strdup("Exit");
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}
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server->rootmenu->visible = true;
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menu_configure(server->rootmenu, 100, 100);
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}
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void
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menu_finish(void)
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{
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struct menu *menu;
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for (int i = 0; i < nr_menus; ++i) {
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menu = menus + i;
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struct menuitem *item, *next;
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wl_list_for_each_safe(item, next, &menu->menuitems, link) {
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zfree(item->action);
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zfree(item->command);
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wl_list_remove(&item->link);
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free(item);
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}
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}
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zfree(menus);
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alloc_menus = 0;
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nr_menus = 0;
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}
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static void
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close_all_submenus(struct menu *menu)
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{
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struct menuitem *item;
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wl_list_for_each (item, &menu->menuitems, link) {
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if (item->submenu) {
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item->submenu->visible = false;
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close_all_submenus(item->submenu);
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}
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}
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}
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void
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menu_move(struct menu *menu, int x, int y)
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{
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assert(menu);
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close_all_submenus(menu);
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menu_configure(menu, x, y);
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}
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/* TODO: consider renaming function to menu_process_cursor_motion */
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void
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menu_set_selected(struct menu *menu, int x, int y)
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{
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struct menuitem *menuitem;
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wl_list_for_each (menuitem, &menu->menuitems, link) {
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menuitem->selected =
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wlr_box_contains_point(&menuitem->box, x, y);
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if (!menu->visible) {
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return;
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}
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struct menuitem *item;
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wl_list_for_each (item, &menu->menuitems, link) {
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item->selected = wlr_box_contains_point(&item->box, x, y);
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if (!item->selected) {
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if (item->submenu && item->submenu->visible) {
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/*
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* Handle the case where a submenu is already
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* open.
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*/
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item->selected = true;
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menu_set_selected(item->submenu, x, y);
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}
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continue;
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}
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/* We're now on an item that has mouse-focus */
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if (item->submenu) {
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if (item->submenu->visible) {
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/* do nothing - submenu already open */
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} else {
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/* open submenu */
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close_all_submenus(menu);
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item->submenu->visible = true;
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menu_set_selected(item->submenu, x, y);
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}
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} else {
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close_all_submenus(menu);
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}
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}
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}
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static void
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menu_clear_selection(struct menu *menu)
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{
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struct menuitem *item;
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wl_list_for_each (item, &menu->menuitems, link) {
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item->selected = false;
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if (item->submenu) {
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menu_clear_selection(item->submenu);
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}
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}
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}
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@ -269,16 +398,20 @@ menu_action_selected(struct server *server, struct menu *menu)
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{
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struct menuitem *menuitem;
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wl_list_for_each (menuitem, &menu->menuitems, link) {
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if (menuitem->selected) {
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if (menuitem->selected && !menuitem->submenu) {
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action(server, menuitem->action, menuitem->command);
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break;
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}
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if (menuitem->submenu) {
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menu_action_selected(server, menuitem->submenu);
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}
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}
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menu_clear_selection(menu);
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}
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void
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menu_reconfigure(struct server *server, struct menu *menu)
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{
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menu_finish(menu);
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menu_init_rootmenu(server, menu);
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menu_finish();
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menu_init_rootmenu(server);
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}
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