A textline is a line of text which can be edited by the user. It has a maximum length (in chracters) but otherwise there are no restrictions.
Signed-off-by: Simon Glass sjg@chromium.org ---
boot/Makefile | 3 +- boot/scene_textline.c | 234 ++++++++++++++++++++++++++++++++++++++++++ include/expo.h | 36 +++++++ 3 files changed, 272 insertions(+), 1 deletion(-) create mode 100644 boot/scene_textline.c
diff --git a/boot/Makefile b/boot/Makefile index 10f01572237..e5bd6bb6fa3 100644 --- a/boot/Makefile +++ b/boot/Makefile @@ -52,7 +52,8 @@ ifdef CONFIG_SPL_BUILD obj-$(CONFIG_SPL_LOAD_FIT) += common_fit.o endif
-obj-$(CONFIG_$(SPL_TPL_)EXPO) += expo.o scene.o scene_menu.o expo_build.o +obj-$(CONFIG_$(SPL_TPL_)EXPO) += expo.o scene.o expo_build.o +obj-$(CONFIG_$(SPL_TPL_)EXPO) += scene_menu.o scene_textline.o
obj-$(CONFIG_$(SPL_TPL_)BOOTMETH_VBE) += vbe.o obj-$(CONFIG_$(SPL_TPL_)BOOTMETH_VBE_REQUEST) += vbe_request.o diff --git a/boot/scene_textline.c b/boot/scene_textline.c new file mode 100644 index 00000000000..2caa81ee158 --- /dev/null +++ b/boot/scene_textline.c @@ -0,0 +1,234 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Implementation of a menu in a scene + * + * Copyright 2023 Google LLC + * Written by Simon Glass sjg@chromium.org + */ + +#define LOG_CATEGORY LOGC_EXPO + +#include <common.h> +#include <expo.h> +#include <menu.h> +#include <video_console.h> +#include "scene_internal.h" + +int scene_textline(struct scene *scn, const char *name, uint id, uint max_chars, + struct scene_obj_textline **tlinep) +{ + struct scene_obj_textline *tline; + char *buf; + int ret; + + if (max_chars >= EXPO_MAX_CHARS) + return log_msg_ret("chr", -E2BIG); + + ret = scene_obj_add(scn, name, id, SCENEOBJT_TEXTLINE, + sizeof(struct scene_obj_textline), + (struct scene_obj **)&tline); + if (ret < 0) + return log_msg_ret("obj", -ENOMEM); + abuf_init(&tline->buf); + if (!abuf_realloc(&tline->buf, max_chars + 1)) + return log_msg_ret("buf", -ENOMEM); + buf = abuf_data(&tline->buf); + *buf = '\0'; + tline->pos = max_chars; + tline->max_chars = max_chars; + + if (tlinep) + *tlinep = tline; + + return tline->obj.id; +} + +void scene_textline_calc_bbox(struct scene_obj_textline *tline, + struct vidconsole_bbox *bbox, + struct vidconsole_bbox *edit_bbox) +{ + const struct expo_theme *theme = &tline->obj.scene->expo->theme; + + bbox->valid = false; + scene_bbox_union(tline->obj.scene, tline->label_id, 0, bbox); + scene_bbox_union(tline->obj.scene, tline->edit_id, 0, bbox); + + edit_bbox->valid = false; + scene_bbox_union(tline->obj.scene, tline->edit_id, theme->menu_inset, + edit_bbox); +} + +int scene_textline_calc_dims(struct scene_obj_textline *tline) +{ + struct scene *scn = tline->obj.scene; + struct vidconsole_bbox bbox; + struct scene_obj_txt *txt; + int ret; + + txt = scene_obj_find(scn, tline->edit_id, SCENEOBJT_NONE); + if (!txt) + return log_msg_ret("dim", -ENOENT); + + ret = vidconsole_nominal(scn->expo->cons, txt->font_name, + txt->font_size, tline->max_chars, &bbox); + if (ret) + return log_msg_ret("nom", ret); + + if (bbox.valid) { + tline->obj.dim.w = bbox.x1 - bbox.x0; + tline->obj.dim.h = bbox.y1 - bbox.y0; + + scene_obj_set_size(scn, tline->edit_id, tline->obj.dim.w, + tline->obj.dim.h); + } + + return 0; +} + +int scene_textline_arrange(struct scene *scn, struct scene_obj_textline *tline) +{ + const bool open = tline->obj.flags & SCENEOF_OPEN; + bool point; + int x, y; + int ret; + + x = tline->obj.dim.x; + y = tline->obj.dim.y; + if (tline->label_id) { + ret = scene_obj_set_pos(scn, tline->label_id, tline->obj.dim.x, + y); + if (ret < 0) + return log_msg_ret("tit", ret); + + ret = scene_obj_set_pos(scn, tline->edit_id, + tline->obj.dim.x + 200, y); + if (ret < 0) + return log_msg_ret("tit", ret); + + ret = scene_obj_get_hw(scn, tline->label_id, NULL); + if (ret < 0) + return log_msg_ret("hei", ret); + + y += ret * 2; + } + + point = scn->highlight_id == tline->obj.id; + point &= !open; + scene_obj_flag_clrset(scn, tline->edit_id, SCENEOF_POINT, + point ? SCENEOF_POINT : 0); + + return 0; +} + +int scene_textline_send_key(struct scene *scn, struct scene_obj_textline *tline, + int key, struct expo_action *event) +{ + const bool open = tline->obj.flags & SCENEOF_OPEN; + + log_debug("key=%d\n", key); + switch (key) { + case BKEY_QUIT: + if (open) { + event->type = EXPOACT_CLOSE; + event->select.id = tline->obj.id; + + /* Copy the backup text from the scene buffer */ + memcpy(abuf_data(&tline->buf), abuf_data(&scn->buf), + abuf_size(&scn->buf)); + } else { + event->type = EXPOACT_QUIT; + log_debug("menu quit\n"); + } + break; + case BKEY_SELECT: + if (!open) + break; + event->type = EXPOACT_CLOSE; + event->select.id = tline->obj.id; + key = '\n'; + fallthrough; + default: { + struct udevice *cons = scn->expo->cons; + int ret; + + ret = vidconsole_entry_restore(cons, &scn->entry_save); + if (ret) + return log_msg_ret("sav", ret); + ret = cread_line_process_ch(&scn->cls, key); + ret = vidconsole_entry_save(cons, &scn->entry_save); + if (ret) + return log_msg_ret("sav", ret); + break; + } + } + + return 0; +} + +int scene_textline_render_deps(struct scene *scn, + struct scene_obj_textline *tline) +{ + const bool open = tline->obj.flags & SCENEOF_OPEN; + struct udevice *cons = scn->expo->cons; + struct scene_obj_txt *txt; + int ret; + + scene_render_deps(scn, tline->label_id); + scene_render_deps(scn, tline->edit_id); + + /* show the vidconsole cursor if open */ + if (open) { + /* get the position within the field */ + txt = scene_obj_find(scn, tline->edit_id, SCENEOBJT_NONE); + if (!txt) + return log_msg_ret("cur", -ENOENT); + + if (txt->font_name || txt->font_size) { + ret = vidconsole_select_font(cons, + txt->font_name, + txt->font_size); + } else { + ret = vidconsole_select_font(cons, NULL, 0); + } + + ret = vidconsole_entry_restore(cons, &scn->entry_save); + if (ret) + return log_msg_ret("sav", ret); + + vidconsole_set_cursor_visible(cons, true, txt->obj.dim.x, + txt->obj.dim.y, scn->cls.num); + } + + return 0; +} + +int scene_textline_open(struct scene *scn, struct scene_obj_textline *tline) +{ + struct udevice *cons = scn->expo->cons; + struct scene_obj_txt *txt; + int ret; + + /* Copy the text into the scene buffer in case the edit is cancelled */ + memcpy(abuf_data(&scn->buf), abuf_data(&tline->buf), + abuf_size(&scn->buf)); + + /* get the position of the editable */ + txt = scene_obj_find(scn, tline->edit_id, SCENEOBJT_NONE); + if (!txt) + return log_msg_ret("cur", -ENOENT); + + vidconsole_set_cursor_pos(cons, txt->obj.dim.x, txt->obj.dim.y); + vidconsole_entry_start(cons); + cli_cread_init(&scn->cls, abuf_data(&tline->buf), tline->max_chars); + scn->cls.insert = true; + ret = vidconsole_entry_save(cons, &scn->entry_save); + if (ret) + return log_msg_ret("sav", ret); + + return 0; +} + +int scene_textline_close(struct scene *scn, struct scene_obj_textline *tline) +{ + return 0; +} diff --git a/include/expo.h b/include/expo.h index c470f5be34d..3260703a7a0 100644 --- a/include/expo.h +++ b/include/expo.h @@ -150,6 +150,7 @@ struct scene { * @SCENEOBJT_IMAGE: Image data to render * @SCENEOBJT_TEXT: Text line to render * @SCENEOBJT_MENU: Menu containing items the user can select + * @SCENEOBJT_TEXTLINE: Line of text the user can edit */ enum scene_obj_t { SCENEOBJT_NONE = 0, @@ -158,6 +159,7 @@ enum scene_obj_t {
/* types from here on can be highlighted */ SCENEOBJT_MENU, + SCENEOBJT_TEXTLINE, };
/** @@ -318,6 +320,27 @@ struct scene_menitem { struct list_head sibling; };
+/** + * struct scene_obj_textline - information about a textline in a scene + * + * A textline has a prompt and a line of editable text + * + * @obj: Basic object information + * @label_id: ID of the label text, or 0 if none + * @edit_id: ID of the editable text + * @max_chars: Maximum number of characters allowed + * @buf: Text buffer containing current text + * @pos: Cursor position + */ +struct scene_obj_textline { + struct scene_obj obj; + uint label_id; + uint edit_id; + uint max_chars; + struct abuf buf; + uint pos; +}; + /** * expo_new() - create a new expo * @@ -552,6 +575,19 @@ int scene_txt_str(struct scene *scn, const char *name, uint id, uint str_id, int scene_menu(struct scene *scn, const char *name, uint id, struct scene_obj_menu **menup);
+/** + * scene_textline() - create a textline + * + * @scn: Scene to update + * @name: Name to use (this is allocated by this call) + * @id: ID to use for the new object (0 to allocate one) + * @max_chars: Maximum length of the textline in characters + * @tlinep: If non-NULL, returns the new object + * Returns: ID number for the object (typically @id), or -ve on error + */ +int scene_textline(struct scene *scn, const char *name, uint id, uint max_chars, + struct scene_obj_textline **tlinep); + /** * scene_txt_set_font() - Set the font for an object *