121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/*
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* This file is part of NetSurf, http://netsurf.sourceforge.net/
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* Licensed under the GNU General Public License,
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* http://www.opensource.org/licenses/gpl-license
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* Copyright 2003 Phil Mellor <monkeyson@users.sourceforge.net>
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* Copyright 2003 James Bursa <bursa@users.sourceforge.net>
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*/
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/** \file
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* Form handling functions (interface).
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*/
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#ifndef _NETSURF_RENDER_FORM_H_
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#define _NETSURF_RENDER_FORM_H_
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#include <stdbool.h>
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#include "netsurf/utils/config.h"
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struct box;
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struct form_control;
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struct form_option;
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/** Form submit method. */
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typedef enum {
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method_GET, /**< GET, always url encoded. */
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method_POST_URLENC, /**< POST, url encoded. */
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method_POST_MULTIPART /**< POST, multipart/form-data. */
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} form_method;
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/** HTML form. */
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struct form {
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char *action; /**< Absolute URL to submit to. */
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form_method method; /**< Method and enctype. */
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char *accept_charsets; /**< Charset to submit form in */
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char *document_charset; /**< Charset of document containing form */
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struct form_control *controls; /**< Linked list of controls. */
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struct form_control *last_control; /**< Last control in list. */
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struct form *prev; /**< Previous form in doc. */
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};
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/** Type of a struct form_control. */
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typedef enum {
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GADGET_HIDDEN,
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GADGET_TEXTBOX,
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GADGET_RADIO,
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GADGET_CHECKBOX,
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GADGET_SELECT,
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GADGET_TEXTAREA,
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GADGET_IMAGE,
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GADGET_PASSWORD,
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GADGET_SUBMIT,
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GADGET_RESET,
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GADGET_FILE
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} form_control_type;
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/** Form control. */
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struct form_control {
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form_control_type type;
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char *name;
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char *value;
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char *initial_value;
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bool disabled;
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struct form *form;
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struct box *box;
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struct box *caret_inline_container;
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struct box *caret_text_box;
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size_t caret_box_offset, caret_form_offset;
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unsigned int length;
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int caret_pixel_offset;
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unsigned int maxlength;
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bool selected;
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union {
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struct {
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int mx, my;
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} image;
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struct {
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int num_items;
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struct form_option *items, *last_item;
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bool multiple;
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int num_selected;
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/** Currently selected item, if num_selected == 1. */
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struct form_option *current;
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} select;
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} data;
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struct form_control *prev; /**< Previous control in this form */
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struct form_control *next; /**< Next control in this form. */
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};
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/** Option in a select. */
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struct form_option {
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bool selected;
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bool initial_selected;
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char *value;
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char *text; /**< NUL terminated. */
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struct form_option* next;
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};
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/** Successful control, as defined by HTML 4.01 17.13. */
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struct form_successful_control {
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bool file; /**< It's a file */
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char *name; /**< Control name. */
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char *value; /**< Current value. */
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struct form_successful_control *next; /**< Next in linked list. */
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};
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struct form *form_new(char *action, form_method method, char *charset,
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char *doc_charset);
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struct form_control *form_new_control(form_control_type type);
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void form_add_control(struct form *form, struct form_control *control);
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void form_free_control(struct form_control *control);
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bool form_add_option(struct form_control *control, char *value, char *text,
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bool selected);
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bool form_successful_controls(struct form *form,
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struct form_control *submit_button,
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struct form_successful_control **successful_controls);
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char *form_url_encode(struct form *form,
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struct form_successful_control *control);
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void form_free_successful(struct form_successful_control *control);
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#endif
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