gecko-dev/cmd/gnomefe/gnome-src/g-html-forms.c
1999-11-02 22:43:10 +00:00

824 lines
19 KiB
C

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
/*
g-html-forms.c --- form elements for html views.
Created: Chris Toshok <toshok@hungry.com>, 12-Apr-98.
*/
#include "g-html-view.h"
#include "lo_ele.h"
#include "xpform.h"
#include "libmocha.h"
#include "libevent.h"
typedef struct fe_form_vtable FEFormVtable;
typedef struct fe_form_data FEFormData;
struct fe_form_vtable
{
void (*create_widget_func)(FEFormData *, LO_FormElementStruct *);
void (*get_size_func)(FEFormData *, LO_FormElementStruct *);
void (*element_is_submit_func)(FEFormData *, LO_FormElementStruct *);
void (*display_element_func)(FEFormData *, LO_FormElementStruct *);
void (*get_element_value)(FEFormData *, LO_FormElementStruct *, XP_Bool);
void (*free_element_func)(FEFormData *, LO_FormElementData *);
void (*reset_element)(FEFormData *, LO_FormElementStruct *);
void (*select_element_func)(FEFormData *, LO_FormElementStruct *);
void (*change_element_func)(FEFormData *, LO_FormElementStruct *);
void (*focus_element_func)(FEFormData *, LO_FormElementStruct *);
void (*lost_focus_func)(FEFormData *);
};
struct fe_form_data {
FEFormVtable vtbl;
LO_FormElementStruct *form;
GtkWidget *widget;
MozHTMLView *view;
};
typedef struct {
FEFormData form_data;
GtkWidget *rowcolumn;
GtkWidget *browse_button;
GtkWidget *file_widget;
} FEFileFormData;
typedef struct {
FEFormData form_data;
GtkWidget *text_widget; /* form_data.widget is the scrolled window. */
} FETextAreaFormData;
typedef struct {
FEFormData form_data;
GtkWidget *list_widget; /* form_data.widget is the scrolled window. */
int nkids;
char *selected_p;
} FESelectMultFormData;
typedef FESelectMultFormData FESelectOneFormData;
static FEFormData* alloc_form_data(int32 type);
static void text_create_widget(FEFormData *, LO_FormElementStruct *);
static void text_display(FEFormData *, LO_FormElementStruct *);
static void text_get_value(FEFormData *, LO_FormElementStruct *, XP_Bool);
static void text_reset(FEFormData *, LO_FormElementStruct *);
static void text_change(FEFormData *, LO_FormElementStruct *);
static void text_focus(FEFormData *, LO_FormElementStruct *);
static void text_lost_focus(FEFormData *);
static void text_select(FEFormData *, LO_FormElementStruct *);
static void file_create_widget(FEFormData *, LO_FormElementStruct *);
static void file_get_value(FEFormData *, LO_FormElementStruct *, XP_Bool);
static void file_free(FEFormData *, LO_FormElementData *);
static void button_create_widget(FEFormData *, LO_FormElementStruct *);
static void checkbox_create_widget(FEFormData *, LO_FormElementStruct *);
static void checkbox_get_value(FEFormData *, LO_FormElementStruct *, XP_Bool);
static void checkbox_change(FEFormData *, LO_FormElementStruct *);
static void select_create_widget(FEFormData *, LO_FormElementStruct *);
static void select_get_value(FEFormData *, LO_FormElementStruct *, XP_Bool);
static void select_free(FEFormData *, LO_FormElementData *);
static void select_reset(FEFormData *, LO_FormElementStruct *);
static void select_change(FEFormData *, LO_FormElementStruct *);
static void textarea_create_widget(FEFormData *, LO_FormElementStruct *);
static void textarea_display(FEFormData *, LO_FormElementStruct *);
static void textarea_get_value(FEFormData *, LO_FormElementStruct *, XP_Bool);
static void textarea_reset(FEFormData *, LO_FormElementStruct *);
static void textarea_lost_focus(FEFormData *);
static void form_element_display(FEFormData *, LO_FormElementStruct *);
static void form_element_get_size(FEFormData *, LO_FormElementStruct *);
static void form_element_is_submit(FEFormData *, LO_FormElementStruct *);
static void form_element_get_value(FEFormData *, LO_FormElementStruct *,
XP_Bool);
static void form_element_free(FEFormData *, LO_FormElementData *);
/* doubles as both the text and password vtable */
static FEFormVtable text_form_vtable = {
text_create_widget,
form_element_get_size,
form_element_is_submit,
text_display,
text_get_value,
form_element_free,
text_reset,
text_select,
text_change,
text_focus,
text_lost_focus
};
static FEFormVtable file_form_vtable = {
file_create_widget,
form_element_get_size,
form_element_is_submit,
text_display,
file_get_value,
file_free,
text_reset,
text_select,
text_change,
text_focus,
text_lost_focus
};
static FEFormVtable button_form_vtable = {
button_create_widget,
form_element_get_size,
NULL,
form_element_display,
form_element_get_value,
form_element_free,
NULL,
NULL,
NULL,
NULL,
NULL
};
static FEFormVtable checkbox_form_vtable = {
checkbox_create_widget,
form_element_get_size,
NULL,
form_element_display,
checkbox_get_value,
form_element_free,
NULL,
NULL,
checkbox_change,
NULL,
NULL
};
static FEFormVtable selectone_form_vtable = {
select_create_widget,
form_element_get_size,
NULL,
form_element_display,
select_get_value,
select_free,
select_reset,
NULL,
select_change,
NULL,
NULL
};
static FEFormVtable selectmult_form_vtable = {
select_create_widget,
form_element_get_size,
NULL,
form_element_display,
select_get_value,
select_free,
select_reset,
NULL,
select_change,
NULL,
NULL
};
static FEFormVtable textarea_form_vtable = {
textarea_create_widget,
form_element_get_size,
NULL,
textarea_display,
textarea_get_value,
form_element_free,
textarea_reset,
text_select,
text_change,
text_focus,
textarea_lost_focus
};
static void
text_create_widget(FEFormData *fed,
LO_FormElementStruct *form)
{
MWContext *context = MOZ_VIEW(fed->view)->context;
LO_FormElementData *form_data;
int32 form_type;
int32 text_size;
int32 max_size;
LO_TextAttr *text_attr;
int16 charset;
char *text;
form_data = XP_GetFormElementData(form);
form_type = XP_FormGetType(form_data);
text_size = XP_FormTextGetSize(form_data);
max_size = XP_FormTextGetMaxSize(form_data);
text_attr = XP_GetFormTextAttr(form);
text = (char*)XP_FormGetDefaultText(form_data);
charset = text_attr->charset;
fed->widget = gtk_entry_new();
gtk_entry_set_text(GTK_ENTRY(fed->widget), text);
}
static void
text_display(FEFormData *fed,
LO_FormElementStruct *form)
{
int32 form_x, form_y;
printf ("displaying text form element\n");
form_x = form->x + form->x_offset - fed->view->doc_x + fed->view->drawable->x_origin;
form_y = form->y + form->y_offset - fed->view->doc_y + fed->view->drawable->y_origin;
printf (" moving form element to %d,%d\n", form_x, form_y);
if (fed->widget->parent == NULL)
gtk_fixed_put(GTK_FIXED(MOZ_VIEW(fed->view)->subview_parent),
fed->widget,
form_x,
form_y);
else
gtk_widget_set_uposition(fed->widget,
form_x,
form_y);
gtk_widget_show(fed->widget);
}
static void
text_get_value(FEFormData *fed,
LO_FormElementStruct *form,
XP_Bool delete_p)
{
MWContext *context = MOZ_VIEW(fed->view)->context;
LO_FormElementData *form_data = XP_GetFormElementData(form);
char *text = 0;
int32 form_type;
PA_Block cur_current;
PA_Block default_txt;
form_type = XP_FormGetType(form_data);
if (form_type == FORM_TYPE_TEXT)
text = gtk_entry_get_text(GTK_ENTRY(fed->widget));
else if (form_type == FORM_TYPE_PASSWORD)
abort(); /* XXXX */
cur_current = XP_FormGetCurrentText(form_data);
default_txt = XP_FormGetDefaultText(form_data);
if (cur_current && cur_current != default_txt)
free ((char*)cur_current);
XP_FormSetCurrentText(form_data, (PA_Block)text);
form_element_get_value(fed, form, delete_p);
}
static void
text_reset(FEFormData *fed,
LO_FormElementStruct *form)
{
LO_FormElementData *form_data = XP_GetFormElementData(form);
char *default_text = (char*)XP_FormGetDefaultText(form_data);
LO_TextAttr *text_attr = XP_GetFormTextAttr(form);
char *tmp_text = 0;
GtkEntry *entry = GTK_ENTRY(fed->widget);
int32 max_size = XP_FormTextGetMaxSize(form_data);
int32 form_type;
form_type = XP_FormGetType(form_data);
if (!default_text) default_text = "";
if (max_size > 0 && (int) XP_STRLEN (default_text) >= max_size)
{
tmp_text = XP_STRDUP (default_text);
tmp_text [max_size] = '\0';
default_text = tmp_text;
}
gtk_entry_set_position(entry, 0);
gtk_entry_set_text(entry, default_text);
if (tmp_text) XP_FREE (tmp_text);
}
static void
text_change(FEFormData *fed,
LO_FormElementStruct *form)
{
LO_FormElementData *form_data = XP_GetFormElementData(form);
int32 form_type = XP_FormGetType(form_data);
char *text = (char*)XP_FormGetCurrentText(form_data);
LO_TextAttr *text_attr = XP_GetFormTextAttr(form);
if (!text) text = (char*)XP_FormGetDefaultText(form_data);
if (form_type == FORM_TYPE_TEXTAREA)
abort(); /* XXX */
else
gtk_entry_set_text(GTK_ENTRY(fed->widget), text);
}
static void
text_focus(FEFormData *fed,
LO_FormElementStruct *form)
{
gtk_widget_grab_focus(fed->widget);
}
static void
text_lost_focus(FEFormData *fed)
{
FETextAreaFormData *ta_fed = (FETextAreaFormData*)fed;
LO_FormElementData *form_data;
char *text;
XP_Bool text_changed = FALSE;
PA_Block current_text;
JSEvent *event;
form_data = XP_GetFormElementData(fed->form);
current_text = XP_FormGetCurrentText(form_data);
text = gtk_entry_get_text(GTK_ENTRY(fed->widget));
if (!current_text || XP_STRCMP((char*)current_text, text))
text_changed = FALSE;
if (((char*) current_text) != text) {
free (text);
}
/* if the text has changed, call get_element_value to copy it into the form
element, and send a CHANGE event to the javascript thread. */
if (text_changed)
{
(*fed->vtbl.get_element_value)(fed, fed->form, FALSE);
event = XP_NEW_ZAP(JSEvent);
event->type = EVENT_CHANGE;
ET_SendEvent (MOZ_VIEW(fed->view)->context, (LO_Element *) fed->form, event,
NULL, NULL);
}
}
static void
text_select(FEFormData *fed,
LO_FormElementStruct *form)
{
printf("text_select (empty)\n");
}
static void
file_create_widget(FEFormData *fed,
LO_FormElementStruct *form)
{
printf("file_create_widget: (not done! will crash)\n");
}
static void
file_get_value(FEFormData *fed,
LO_FormElementStruct *form,
XP_Bool delete_p)
{
printf("file_get_value (empty)\n");
}
static void
file_free(FEFormData *fed,
LO_FormElementData *form_data)
{
printf("file_free (empty)\n");
}
void
button_create_widget(FEFormData *fed,
LO_FormElementStruct *form)
{
LO_FormElementData *form_data;
form_data = XP_GetFormElementData(form);
fed->widget = gtk_button_new_with_label((unsigned char*)XP_FormGetValue(form_data));
}
void
checkbox_create_widget(FEFormData *fed,
LO_FormElementStruct *form)
{
printf("checkbox_create_widget: (not done! will crash)\n");
}
void
checkbox_get_value(FEFormData *fed,
LO_FormElementStruct *form,
XP_Bool hide)
{
printf("checkbox_get_value (empty)\n");
}
void
checkbox_change(FEFormData *fed,
LO_FormElementStruct *form)
{
printf("checkbox_change (empty)\n");
}
static void
select_create_widget(FEFormData *fed,
LO_FormElementStruct *form)
{
printf("select_create_widget (not done! will crash!)\n");
}
static void
select_get_value(FEFormData *fed,
LO_FormElementStruct *form,
XP_Bool delete_p)
{
printf("select_get_value (empty)\n");
}
static void
select_free(FEFormData *fed,
LO_FormElementData *form)
{
printf("select_free (empty)\n");
}
static void
select_reset(FEFormData *fed,
LO_FormElementStruct *form)
{
printf("select_reset (empty)\n");
}
static void
select_change(FEFormData *fed,
LO_FormElementStruct *form)
{
printf("select_change (empty)\n");
}
static void
textarea_create_widget(FEFormData *fed,
LO_FormElementStruct *form)
{
printf("textarea_create_widget (not done! will crash!)\n");
}
static void
textarea_display(FEFormData *fed,
LO_FormElementStruct *form)
{
printf("textarea_display (empty)\n");
}
static void
textarea_get_value(FEFormData *fed,
LO_FormElementStruct *form,
XP_Bool delete_p)
{
printf("textarea_get_value (empty)\n");
}
static void
textarea_reset(FEFormData *fed,
LO_FormElementStruct *form)
{
printf("textarea_reset (empty)\n");
}
static void
textarea_lost_focus(FEFormData *fed)
{
printf("textarea_lost_focus (empty)\n");
}
static void
form_element_display(FEFormData *fed,
LO_FormElementStruct *form)
{
int32 form_x, form_y;
form_x = form->x + form->x_offset - fed->view->doc_x + fed->view->drawable->x_origin;
form_y = form->y + form->y_offset - fed->view->doc_y + fed->view->drawable->y_origin;
if (fed->widget->parent == NULL)
gtk_fixed_put(GTK_FIXED(MOZ_VIEW(fed->view)->subview_parent),
fed->widget,
form_x,
form_y);
else
gtk_widget_set_uposition(fed->widget,
form_x,
form_y);
gtk_widget_show(fed->widget);
}
static void
form_element_get_size(FEFormData *fed,
LO_FormElementStruct *form)
{
form->width = fed->widget->allocation.width;
form->height = fed->widget->allocation.height;
}
static void
form_element_is_submit(FEFormData *fed,
LO_FormElementStruct *form)
{
printf("form_element_is_submit (empty)\n");
}
static void
form_element_get_value(FEFormData *fed,
LO_FormElementStruct *form,
XP_Bool delete_p)
{
if (delete_p)
{
gtk_widget_destroy(fed->widget);
fed->widget = 0;
}
}
static void
form_element_free(FEFormData *fed,
LO_FormElementData *form)
{
if (fed->widget)
gtk_widget_destroy(fed->widget);
fed->widget = 0;
XP_FREE(fed);
}
static FEFormData *
alloc_form_data(int32 form_type)
{
FEFormData *data;
switch (form_type)
{
case FORM_TYPE_TEXT:
case FORM_TYPE_PASSWORD:
case FORM_TYPE_READONLY:
data = (FEFormData*)XP_NEW_ZAP(FEFormData);
data->vtbl = text_form_vtable;
return data;
case FORM_TYPE_FILE:
data = (FEFormData*)XP_NEW_ZAP(FEFileFormData);
data->vtbl = file_form_vtable;
return data;
case FORM_TYPE_SUBMIT:
case FORM_TYPE_RESET:
case FORM_TYPE_BUTTON:
data = (FEFormData*)XP_NEW_ZAP(FEFormData);
data->vtbl = button_form_vtable;
return data;
case FORM_TYPE_RADIO:
case FORM_TYPE_CHECKBOX:
data = (FEFormData*)XP_NEW_ZAP(FEFormData);
data->vtbl = checkbox_form_vtable;
return data;
case FORM_TYPE_SELECT_ONE:
data = (FEFormData*)XP_NEW_ZAP(FESelectOneFormData);
data->vtbl = selectone_form_vtable;
return data;
case FORM_TYPE_TEXTAREA:
data = (FEFormData*)XP_NEW_ZAP(FETextAreaFormData);
data->vtbl = textarea_form_vtable;
return data;
case FORM_TYPE_SELECT_MULT:
data = (FEFormData*)XP_NEW_ZAP(FESelectMultFormData);
data->vtbl = selectmult_form_vtable;
return data;
case FORM_TYPE_HIDDEN:
case FORM_TYPE_JOT:
case FORM_TYPE_ISINDEX:
case FORM_TYPE_IMAGE:
case FORM_TYPE_KEYGEN:
case FORM_TYPE_OBJECT:
default:
XP_ASSERT(0);
return NULL;
}
}
void
moz_html_view_get_form_element_info(MozHTMLView *view,
LO_FormElementStruct *form)
{
LO_FormElementData *form_data = XP_GetFormElementData(form);
MWContext *context = MOZ_VIEW(view)->context;
FEFormData *fed;
if (!form_data)
return;
fed = (FEFormData*)XP_FormGetFEData(form_data);
if (!fed)
{
int32 form_type = XP_FormGetType(form_data);
fed = alloc_form_data(form_type);
XP_ASSERT(fed);
if (!fed) return;
XP_FormSetFEData(form_data, fed);
}
fed->form = form;
fed->view = view;
if (!fed->widget)
{
XP_ASSERT(fed->vtbl.create_widget_func);
(*fed->vtbl.create_widget_func)(fed, form);
}
XP_ASSERT(fed->vtbl.get_size_func);
(*fed->vtbl.get_size_func)(fed, form);
}
void
moz_html_view_display_form_element(MozHTMLView *view,
LO_FormElementStruct *form)
{
LO_FormElementData *form_data = XP_GetFormElementData(form);
FEFormData *fed;
printf ("MOZ_HTML_VIEW_DISPLAY_FORM_ELEMENT\n");
if (!form_data)
return;
fed = (FEFormData*)XP_FormGetFEData(form_data);
XP_ASSERT(fed);
if (!fed) return;
if (fed->vtbl.display_element_func)
(*fed->vtbl.display_element_func)(fed, form);
}
void
moz_html_view_get_form_element_value(MozHTMLView *view,
LO_FormElementStruct *form,
XP_Bool delete_p)
{
LO_FormElementData *form_data = XP_GetFormElementData(form);
FEFormData *fed;
if (!form_data)
return;
fed = (FEFormData*)XP_FormGetFEData(form_data);
XP_ASSERT(fed);
if (!fed) return;
if (fed->vtbl.get_element_value)
(*fed->vtbl.get_element_value)(fed, form, delete_p);
}
void
moz_html_view_reset_form_element(MozHTMLView *view,
LO_FormElementStruct *form_element)
{
printf("moz_html_view_reset_form_element (empty)\n");
}
void
moz_html_view_set_form_element_toggle(MozHTMLView *view,
LO_FormElementStruct *form_element,
XP_Bool toggle)
{
printf("moz_html_view_set_form_element_toggle (empty)\n");
}
void
moz_html_view_free_form_element(MozHTMLView *view,
LO_FormElementData *form_data)
{
FEFormData *fed;
if (!form_data)
return;
fed = (FEFormData*)XP_FormGetFEData(form_data);
/* this assert gets tripped by HIDDEN form elements, since we have no
FE data associated with them. */
/*XP_ASSERT(fed);*/
if (!fed) return;
if (fed->vtbl.free_element_func)
(*fed->vtbl.free_element_func)(fed, form_data);
/* clear out the FE data, so we don't try anything funny from now on. */
XP_FormSetFEData(form_data, NULL);
}
void
moz_html_view_blur_input_element(MozHTMLView *view,
LO_FormElementStruct *form_element)
{
printf("moz_html_view_blur_input_element (empty)\n");
}
void
moz_html_view_focus_input_element(MozHTMLView *view,
LO_FormElementStruct *form_element)
{
printf("moz_html_view_focus_input_element (empty)\n");
}
void
moz_html_view_select_input_element(MozHTMLView *view,
LO_FormElementStruct *form_element)
{
printf("moz_html_view_select_input_element (empty)\n");
}
void
moz_html_view_click_input_element(MozHTMLView *view,
LO_FormElementStruct *form_element)
{
printf("moz_html_view_click_input_element (empty)\n");
}
void
moz_html_view_change_input_element(MozHTMLView *view,
LO_FormElementStruct *form_element)
{
printf("moz_html_view_change_input_element (empty)\n");
}
void
moz_html_view_submit_input_element(MozHTMLView *view,
LO_FormElementStruct *form_element)
{
printf("moz_html_view_submit_input_element (empty)\n");
}