gecko-dev/lib/layout/layinfo.c

674 строки
15 KiB
C
Исходник Обычный вид История

1998-03-28 05:44:41 +03:00
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "xp.h"
#include "pa_parse.h"
#include "layout.h"
#include "laylayer.h"
#include "layers.h"
#include "prmem.h"
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/* for XP_GetString() */
#include "xpgetstr.h"
extern int LAY_PAGEINFO_NOINFO;
extern int LAY_PAGEINFO_FRAME;
extern int LAY_PAGEINFO_IMAGE;
extern int LAY_PAGEINFO_EMBED;
extern int LAY_PAGEINFO_APPLET;
extern int LAY_PAGEINFO_BACKGROUND_IMAGE;
extern int LAY_PAGEINFO_ACTIONURL;
extern int LAY_PAGEINFO_ENCODING;
extern int LAY_PAGEINFO_METHOD;
extern int LAY_PAGEINFO_LAYER;
#define STREAM_WRITE(Str) \
(*stream->put_block)(stream, Str, XP_STRLEN(Str))
PRIVATE
void
lo_element_info(LO_Element *ele_list, NET_StreamClass *stream)
{
LO_Element *eptr;
char buf[1024];
char *tmp_ptr;
eptr = ele_list;
while (eptr != NULL)
{
switch(eptr->type)
{
case LO_IMAGE:
{
LO_ImageStruct *image;
char *str;
char *image_src;
image = (LO_ImageStruct *)eptr;
/*
* Extract the SRC of this image.
*/
PA_LOCK(str, char *, image->image_url);
if (str != NULL)
{
image_src = XP_STRDUP(str);
}
else
{
image_src = NULL;
}
if(image_src
&& XP_STRNCMP(image_src, "internal-external-reconnect", 27))
{
XP_STRCPY(buf,"<li>");
XP_STRCAT(buf, XP_GetString(LAY_PAGEINFO_IMAGE));
XP_STRCAT(buf," <A TARGET=Internal_URL_Info HREF=\"about:");
STREAM_WRITE(buf);
STREAM_WRITE(image_src);
XP_STRCPY(buf,"\">");
STREAM_WRITE(buf);
tmp_ptr = NET_EscapeHTML(image_src);
STREAM_WRITE(tmp_ptr);
XP_FREE(tmp_ptr);
XP_STRCPY(buf,"</A>");
STREAM_WRITE(buf);
XP_FREE(image_src);
}
PA_UNLOCK(image->image_url);
}
break;
case LO_EMBED:
{
LO_EmbedStruct *embed;
char *str;
char *embed_src;
embed = (LO_EmbedStruct *)eptr;
/*
* Extract the SRC of this embed.
*/
PA_LOCK(str, char *, embed->embed_src);
if (str != NULL)
{
embed_src = XP_STRDUP(str);
}
else
{
embed_src = NULL;
}
PA_UNLOCK(embed->embed_src);
if(embed_src)
{
XP_STRCPY(buf,"<li>");
XP_STRCAT(buf, XP_GetString(LAY_PAGEINFO_EMBED));
XP_STRCAT(buf," <A TARGET=Internal_URL_Info HREF=\"about:");
STREAM_WRITE(buf);
STREAM_WRITE(embed_src);
XP_STRCPY(buf,"\">");
STREAM_WRITE(buf);
tmp_ptr = NET_EscapeHTML(embed_src);
STREAM_WRITE(tmp_ptr);
XP_FREE(tmp_ptr);
XP_STRCPY(buf,"</A>");
STREAM_WRITE(buf);
XP_FREE(embed_src);
}
}
break;
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case LO_BUILTIN:
{
LO_BuiltinStruct *builtin;
char *str;
char *builtin_src;
builtin = (LO_BuiltinStruct *)eptr;
/*
* Extract the SRC of this builtin.
*/
PA_LOCK(str, char *, builtin->builtin_src);
if (str != NULL)
{
builtin_src = XP_STRDUP(str);
}
else
{
builtin_src = NULL;
}
PA_UNLOCK(builtin->builtin_src);
if(builtin_src)
{
XP_STRCPY(buf,"<li>");
XP_STRCAT(buf, XP_GetString(LAY_PAGEINFO_EMBED));
XP_STRCAT(buf," <A TARGET=Internal_URL_Info HREF=\"about:");
STREAM_WRITE(buf);
STREAM_WRITE(builtin_src);
XP_STRCPY(buf,"\">");
STREAM_WRITE(buf);
tmp_ptr = NET_EscapeHTML(builtin_src);
STREAM_WRITE(tmp_ptr);
XP_FREE(tmp_ptr);
XP_STRCPY(buf,"</A>");
STREAM_WRITE(buf);
XP_FREE(builtin_src);
}
}
break;
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#ifdef JAVA
case LO_JAVA:
{
LO_JavaAppStruct *java_app;
char *str;
char *java_code = NULL;
char *java_codebase = NULL;
char *java_archive = NULL;
char *java_name = NULL;
java_app = (LO_JavaAppStruct *)eptr;
/*
* Extract the java class of this
* java applet.
*/
PA_LOCK(str, char *, java_app->attr_code);
if (str != NULL)
{
java_code = XP_STRDUP(str);
}
PA_UNLOCK(java_app->attr_code);
/*
* Extract the codebase of this
* java applet.
*/
PA_LOCK(str, char *, java_app->attr_codebase);
if (str != NULL)
{
java_codebase = XP_STRDUP(str);
}
PA_UNLOCK(java_app->attr_codebase);
/*
* Extract the archive of this
* java applet.
*/
PA_LOCK(str, char *, java_app->attr_archive);
if (str != NULL)
{
java_archive = XP_STRDUP(str);
}
PA_UNLOCK(java_app->attr_archive);
/*
* Extract the app name of this
* java applet.
*/
PA_LOCK(str, char *, java_app->attr_name);
if (str != NULL)
{
java_name = XP_STRDUP(str);
}
PA_UNLOCK(java_app->attr_name);
if(java_code)
{
XP_STRCPY(buf,"<li>");
XP_STRCAT(buf, XP_GetString(LAY_PAGEINFO_APPLET));
XP_STRCAT(buf," <A TARGET=Internal_URL_Info HREF=about:");
STREAM_WRITE(buf);
STREAM_WRITE(java_code);
XP_STRCPY(buf,">");
STREAM_WRITE(buf);
STREAM_WRITE(java_code);
XP_STRCPY(buf,"</A>");
STREAM_WRITE(buf);
XP_FREE(java_code);
}
if(java_codebase)
{
XP_STRCPY(buf,"<li>");
XP_STRCAT(buf, XP_GetString(LAY_PAGEINFO_APPLET));
XP_STRCAT(buf," <A TARGET=Internal_URL_Info HREF=about:");
STREAM_WRITE(buf);
STREAM_WRITE(java_codebase);
XP_STRCPY(buf,">");
STREAM_WRITE(buf);
STREAM_WRITE(java_codebase);
XP_STRCPY(buf,"</A>");
STREAM_WRITE(buf);
XP_FREE(java_codebase);
}
if(java_archive)
{
XP_STRCPY(buf,"<li>");
XP_STRCAT(buf, XP_GetString(LAY_PAGEINFO_APPLET));
XP_STRCAT(buf," <A TARGET=Internal_URL_Info HREF=about:");
STREAM_WRITE(buf);
STREAM_WRITE(java_archive);
XP_STRCPY(buf,">");
STREAM_WRITE(buf);
STREAM_WRITE(java_archive);
XP_STRCPY(buf,"</A>");
STREAM_WRITE(buf);
XP_FREE(java_archive);
}
if(java_name)
{
XP_STRCPY(buf,"<li>");
XP_STRCAT(buf, XP_GetString(LAY_PAGEINFO_APPLET));
XP_STRCAT(buf," <A TARGET=Internal_URL_Info HREF=about:");
STREAM_WRITE(buf);
STREAM_WRITE(java_name);
XP_STRCPY(buf,">");
STREAM_WRITE(buf);
STREAM_WRITE(java_name);
XP_STRCPY(buf,"</A>");
STREAM_WRITE(buf);
XP_FREE(java_name);
}
}
break;
#endif
/*
* We must recursively traverse into cells.
*/
case LO_CELL:
lo_element_info(eptr->lo_cell.cell_list, stream);
lo_element_info(eptr->lo_cell.cell_float_list, stream);
break;
default:
break;
}
eptr = eptr->lo_any.next;
}
}
PRIVATE
void
lo_backdrop_info(char *backdrop_image_url, NET_StreamClass *stream)
{
if (backdrop_image_url)
{
char buf[1024];
char *str_ptr;
char *copy_of_str;
PA_LOCK(str_ptr, char *, backdrop_image_url);
/* layout mucks with strings so you must make
* a copy of them before sending them up
*/
copy_of_str = XP_STRDUP(str_ptr);
if(copy_of_str)
{
XP_STRCPY(buf, XP_GetString(LAY_PAGEINFO_BACKGROUND_IMAGE) );
STREAM_WRITE(buf);
XP_STRCPY(buf, "<A TARGET=Internal_URL_Info HREF=about:");
STREAM_WRITE(buf);
STREAM_WRITE(copy_of_str);
XP_STRCPY(buf,">");
STREAM_WRITE(buf);
XP_FREE(copy_of_str);
copy_of_str = XP_STRDUP(str_ptr);
if(copy_of_str)
{
STREAM_WRITE(copy_of_str);
XP_FREE(copy_of_str);
}
XP_STRCPY(buf,"</A>");
STREAM_WRITE(buf);
}
PA_UNLOCK(backdrop_image_url);
}
}
PRIVATE
void
lo_form_info(lo_FormData *form_list, NET_StreamClass *stream)
{
int form_num=1;
while (form_list != NULL)
{
char *str;
char *submit_url;
char *encoding;
char buf[1024];
XP_SPRINTF(buf, "<b>Form %d:</b><UL>", form_num++);
STREAM_WRITE(buf);
PA_LOCK(str, char *, form_list->action);
/*
* Extract the URL this form will submit to.
*/
if (str != NULL)
{
submit_url = XP_STRDUP(str);
}
else
{
submit_url = NULL;
}
PA_UNLOCK(form_list->action);
XP_STRCPY(buf, XP_GetString(LAY_PAGEINFO_ACTIONURL));
STREAM_WRITE(buf);
if(submit_url)
{
STREAM_WRITE(submit_url);
XP_FREE(submit_url);
}
PA_LOCK(str, char *, form_list->encoding);
/*
* Extract the encoding this form will submit in.
*/
if (str != NULL)
{
encoding = XP_STRDUP(str);
}
else
{
encoding = NULL;
}
PA_UNLOCK(form_list->encoding);
XP_STRCPY(buf, XP_GetString(LAY_PAGEINFO_ENCODING));
STREAM_WRITE(buf);
if(encoding)
{
STREAM_WRITE(encoding);
XP_FREE(encoding);
}
else
{
XP_STRCPY(buf, APPLICATION_WWW_FORM_URLENCODED " (default)");
STREAM_WRITE(buf);
}
/*
* Extract the submit method
* (FORM_METHOD_GET or FORM_METHOD_POST).
*/
XP_STRCPY(buf, XP_GetString(LAY_PAGEINFO_METHOD));
STREAM_WRITE(buf);
if(form_list->method == FORM_METHOD_POST)
XP_STRCPY(buf, "Post");
else
XP_STRCPY(buf, "Get");
STREAM_WRITE(buf);
XP_STRCPY(buf, "</UL>");
STREAM_WRITE(buf);
/* move to the next one */
form_list = form_list->next;
}
}
/*
* Prepare a bunch of information about the content of this
* document and prints the information as HTML down
* the passed in stream.
*
* Returns:
* -1 If the context passed does not correspond to any currently
* laid out document.
* 0 If the context passed corresponds to a document that is
* in the process of being laid out.
* 1 If the context passed corresponds to a document that is
* completly laid out and info can be found.
*/
PUBLIC intn
LO_DocumentInfo(MWContext *context, NET_StreamClass *stream)
{
int32 doc_id, i;
lo_TopState *top_state;
lo_DocState *state;
LO_Element **line_array;
LO_Element *eptr;
/* stuff we want to return info on */
char *backdrop_image_url;
char *url;
char *base_url;
char *escaped;
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lo_FormData *form_list;
if (context == NULL)
{
return(-1);
}
/*
* Get the unique document ID, and retreive this
* documents layout state.
*/
doc_id = XP_DOCID(context);
top_state = lo_FetchTopState(doc_id);
if ((top_state == NULL)||(top_state->doc_state == NULL))
{
return(-1);
}
state = top_state->doc_state;
if (top_state->layout_status != PA_COMPLETE)
{
char buf[1024];
XP_STRCPY(buf, XP_GetString(LAY_PAGEINFO_NOINFO));
STREAM_WRITE(buf);
return(0);
}
/*
* Extract the URL this document was accessed by.
*/
if (top_state->url != NULL)
{
char buf[1024];
url = XP_STRDUP(top_state->url);
XP_STRCPY(buf, "<A TARGET=Internal_URL_Info HREF=\"about:");
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STREAM_WRITE(buf);
escaped = NET_EscapeDoubleQuote(url);
STREAM_WRITE(escaped);
PR_Free(escaped);
XP_STRCPY(buf,"\">");
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STREAM_WRITE(buf);
escaped = NET_EscapeHTML(url);
STREAM_WRITE(escaped);
PR_Free(escaped);
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XP_STRCPY(buf,"</A><UL>");
STREAM_WRITE(buf);
XP_FREE(url);
}
else
{
url = NULL;
}
/*
* Extract the BASE URL for this document.
*/
if (top_state->base_url != NULL)
{
base_url = XP_STRDUP(top_state->base_url);
}
else
{
base_url = NULL;
}
/*
* Extract the background image, NULL if none.
*/
backdrop_image_url = (char*)LO_GetLayerBackdropURL(top_state->doc_layer);
lo_backdrop_info(backdrop_image_url, stream);
/*
* Is this a grid? If so there is nothing but grid cells
* in it. Return after processing it.
*/
if (top_state->is_grid != FALSE)
{
lo_GridRec *the_grid;
int32 cell_count;
lo_GridCellRec *cell_list;
char buf[1024];
the_grid = top_state->the_grid;
if (the_grid == NULL)
{
XP_STRCPY(buf,"</UL>");
STREAM_WRITE(buf);
return(1);
}
/*
* The number of cells may be less than
* the rows * cols because of blank cells.
*/
cell_count = the_grid->cell_count;
cell_list = the_grid->cell_list;
while (cell_list != NULL)
{
char *cell_url;
MWContext *cell_context;
/*
* Extract the cell's URL.
*/
if (cell_list->url != NULL)
{
cell_url = XP_STRDUP(cell_list->url);
}
else
{
cell_url = NULL;
}
/*
* Extract the cell's window context.
*/
cell_context = cell_list->context;
XP_STRCPY(buf, XP_GetString(LAY_PAGEINFO_FRAME));
STREAM_WRITE(buf);
/* recurse and print if valid context */
if (cell_context != NULL)
{
LO_DocumentInfo(cell_context, stream);
}
cell_list = cell_list->next;
}
XP_STRCPY(buf,"</UL>");
STREAM_WRITE(buf);
return(1);
}
/*
* Extract the list of all forms in this doc.
*/
form_list = top_state->doc_lists.form_list;
lo_form_info(form_list, stream);
/*
* Now traverse the element list describing important elements.
* Right now interesting elements are Images and Embeds.
*/
/*
* Make eptr point to the start of the element chain
* for this document.
*/
#ifdef XP_WIN16
{
XP_Block *larray_array;
XP_LOCK_BLOCK(larray_array, XP_Block *, state->larray_array);
state->line_array = larray_array[0];
XP_UNLOCK_BLOCK(state->larray_array);
}
#endif /* XP_WIN16 */
XP_LOCK_BLOCK(line_array, LO_Element **, state->line_array);
eptr = line_array[0];
XP_UNLOCK_BLOCK(state->line_array);
lo_element_info(eptr, stream);
lo_element_info(state->float_list, stream);
for (i = 0; i <= state->top_state->max_layer_num; i++) {
lo_LayerDocState *layer_state = state->top_state->layers[i];
char buf[1024];
char *name;
if (!layer_state)
continue;
if (layer_state->id == LO_DOCUMENT_LAYER_ID)
continue;
XP_STRCPY(buf, XP_GetString(LAY_PAGEINFO_LAYER));
STREAM_WRITE(buf);
if (layer_state->layer) {
name = CL_GetLayerName(layer_state->layer);
if (name)
STREAM_WRITE(name);
}
XP_STRCPY(buf, "<UL>");
STREAM_WRITE(buf);
/* Extract the backdrop of the layer if it exists */
backdrop_image_url = (char*)LO_GetLayerBackdropURL(layer_state->layer);
lo_backdrop_info(backdrop_image_url, stream);
/* Extract form info */
form_list = layer_state->doc_lists->form_list;
lo_form_info(form_list, stream);
/* And important element info */
if (layer_state->cell) {
LO_CellStruct *cell = layer_state->cell;
lo_element_info(cell->cell_list, stream);
lo_element_info(cell->cell_float_list, stream);
}
XP_STRCPY(buf, "</UL>");
STREAM_WRITE(buf);
}
if(1)
{
char buf[16];
XP_STRCPY(buf,"</UL>");
STREAM_WRITE(buf);
}
return(1);
}