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wine-wine/dlls/hhctrl.ocx/content.c

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/*
* Copyright 2007 Jacek Caban for CodeWeavers
* Copyright 2011 Owen Rudge for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define NONAMELESSUNION
#include "hhctrl.h"
#include "stream.h"
#include "resource.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(htmlhelp);
typedef enum {
INSERT_NEXT,
INSERT_CHILD
} insert_type_t;
static void free_content_item(ContentItem *item)
{
ContentItem *next;
while(item) {
next = item->next;
free_content_item(item->child);
heap_free(item->name);
heap_free(item->local);
heap_free(item->merge.chm_file);
heap_free(item->merge.chm_index);
item = next;
}
}
static void parse_obj_node_param(ContentItem *item, ContentItem *hhc_root, const char *text, UINT code_page)
{
const char *ptr;
LPWSTR *param, merge;
int len;
ptr = get_attr(text, "name", &len);
if(!ptr) {
WARN("name attr not found\n");
return;
}
if(!_strnicmp("name", ptr, len)) {
param = &item->name;
}else if(!_strnicmp("merge", ptr, len)) {
param = &merge;
}else if(!_strnicmp("local", ptr, len)) {
param = &item->local;
}else {
WARN("unhandled param %s\n", debugstr_an(ptr, len));
return;
}
ptr = get_attr(text, "value", &len);
if(!ptr) {
WARN("value attr not found\n");
return;
}
/*
* "merge" parameter data (referencing another CHM file) can be incorporated into the "local" parameter
* by specifying the filename in the format:
* MS-ITS:file.chm::/local_path.htm
*/
if(param == &item->local && strstr(ptr, "::"))
{
const char *local = strstr(ptr, "::")+2;
int local_len = len-(local-ptr);
item->local = decode_html(local, local_len, code_page);
param = &merge;
}
*param = decode_html(ptr, len, code_page);
if(param == &merge) {
SetChmPath(&item->merge, hhc_root->merge.chm_file, merge);
heap_free(merge);
}
}
static ContentItem *parse_hhc(HHInfo*,IStream*,ContentItem*,insert_type_t*);
static ContentItem *insert_item(ContentItem *item, ContentItem *new_item, insert_type_t insert_type)
{
if(!item)
return new_item;
if(!new_item)
return item;
switch(insert_type) {
case INSERT_NEXT:
item->next = new_item;
return new_item;
case INSERT_CHILD:
if(item->child) {
ContentItem *iter = item->child;
while(iter->next)
iter = iter->next;
iter->next = new_item;
}else {
item->child = new_item;
}
return item;
}
return NULL;
}
static ContentItem *parse_sitemap_object(HHInfo *info, stream_t *stream, ContentItem *hhc_root,
insert_type_t *insert_type)
{
strbuf_t node, node_name;
ContentItem *item;
*insert_type = INSERT_NEXT;
strbuf_init(&node);
strbuf_init(&node_name);
item = heap_alloc_zero(sizeof(ContentItem));
while(next_node(stream, &node)) {
get_node_name(&node, &node_name);
TRACE("%s\n", node.buf);
if(!stricmp(node_name.buf, "/object"))
break;
if(!stricmp(node_name.buf, "param"))
parse_obj_node_param(item, hhc_root, node.buf, info->pCHMInfo->codePage);
strbuf_zero(&node);
}
strbuf_free(&node);
strbuf_free(&node_name);
if(item->merge.chm_index) {
IStream *merge_stream;
merge_stream = GetChmStream(info->pCHMInfo, item->merge.chm_file, &item->merge);
if(merge_stream) {
item->child = parse_hhc(info, merge_stream, hhc_root, insert_type);
IStream_Release(merge_stream);
}else {
WARN("Could not get %s::%s stream\n", debugstr_w(item->merge.chm_file),
debugstr_w(item->merge.chm_file));
if(!item->name) {
free_content_item(item);
item = NULL;
}
}
}
return item;
}
static ContentItem *parse_ul(HHInfo *info, stream_t *stream, ContentItem *hhc_root)
{
strbuf_t node, node_name;
ContentItem *ret = NULL, *prev = NULL, *new_item = NULL;
insert_type_t it;
strbuf_init(&node);
strbuf_init(&node_name);
while(next_node(stream, &node)) {
get_node_name(&node, &node_name);
TRACE("%s\n", node.buf);
if(!stricmp(node_name.buf, "object")) {
const char *ptr;
int len;
static const char sz_text_sitemap[] = "text/sitemap";
ptr = get_attr(node.buf, "type", &len);
if(ptr && len == sizeof(sz_text_sitemap)-1
&& !memcmp(ptr, sz_text_sitemap, len)) {
new_item = parse_sitemap_object(info, stream, hhc_root, &it);
prev = insert_item(prev, new_item, it);
if(!ret)
ret = prev;
}
}else if(!stricmp(node_name.buf, "ul")) {
new_item = parse_ul(info, stream, hhc_root);
insert_item(prev, new_item, INSERT_CHILD);
}else if(!stricmp(node_name.buf, "/ul")) {
break;
}
strbuf_zero(&node);
}
strbuf_free(&node);
strbuf_free(&node_name);
return ret;
}
static ContentItem *parse_hhc(HHInfo *info, IStream *str, ContentItem *hhc_root,
insert_type_t *insert_type)
{
stream_t stream;
strbuf_t node, node_name;
ContentItem *ret = NULL, *prev = NULL;
*insert_type = INSERT_NEXT;
strbuf_init(&node);
strbuf_init(&node_name);
stream_init(&stream, str);
while(next_node(&stream, &node)) {
get_node_name(&node, &node_name);
TRACE("%s\n", node.buf);
if(!stricmp(node_name.buf, "ul")) {
ContentItem *item = parse_ul(info, &stream, hhc_root);
prev = insert_item(prev, item, INSERT_CHILD);
if(!ret)
ret = prev;
*insert_type = INSERT_CHILD;
}
strbuf_zero(&node);
}
strbuf_free(&node);
strbuf_free(&node_name);
return ret;
}
static void insert_content_item(HWND hwnd, ContentItem *parent, ContentItem *item)
{
TVINSERTSTRUCTW tvis;
memset(&tvis, 0, sizeof(tvis));
tvis.u.item.mask = TVIF_TEXT|TVIF_PARAM|TVIF_IMAGE|TVIF_SELECTEDIMAGE;
tvis.u.item.cchTextMax = lstrlenW(item->name)+1;
tvis.u.item.pszText = item->name;
tvis.u.item.lParam = (LPARAM)item;
tvis.u.item.iImage = item->child ? HHTV_FOLDER : HHTV_DOCUMENT;
tvis.u.item.iSelectedImage = item->child ? HHTV_FOLDER : HHTV_DOCUMENT;
tvis.hParent = parent ? parent->id : 0;
tvis.hInsertAfter = TVI_LAST;
item->id = (HTREEITEM)SendMessageW(hwnd, TVM_INSERTITEMW, 0, (LPARAM)&tvis);
}
static void fill_content_tree(HWND hwnd, ContentItem *parent, ContentItem *item)
{
while(item) {
if(item->name) {
insert_content_item(hwnd, parent, item);
fill_content_tree(hwnd, item, item->child);
}else {
fill_content_tree(hwnd, parent, item->child);
}
item = item->next;
}
}
static void set_item_parents(ContentItem *parent, ContentItem *item)
{
while(item) {
item->parent = parent;
set_item_parents(item, item->child);
item = item->next;
}
}
void InitContent(HHInfo *info)
{
IStream *stream;
insert_type_t insert_type;
info->content = heap_alloc_zero(sizeof(ContentItem));
SetChmPath(&info->content->merge, info->pCHMInfo->szFile, info->WinType.pszToc);
stream = GetChmStream(info->pCHMInfo, info->pCHMInfo->szFile, &info->content->merge);
if(!stream) {
TRACE("Could not get content stream\n");
return;
}
info->content->child = parse_hhc(info, stream, info->content, &insert_type);
IStream_Release(stream);
set_item_parents(NULL, info->content);
fill_content_tree(info->tabs[TAB_CONTENTS].hwnd, NULL, info->content);
}
void ReleaseContent(HHInfo *info)
{
free_content_item(info->content);
}
void ActivateContentTopic(HWND hWnd, LPCWSTR filename, ContentItem *item)
{
if (lstrcmpiW(item->local, filename) == 0)
{
SendMessageW(hWnd, TVM_SELECTITEM, TVGN_CARET, (LPARAM) item->id);
return;
}
if (item->next)
ActivateContentTopic(hWnd, filename, item->next);
if (item->child)
ActivateContentTopic(hWnd, filename, item->child);
}
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