search.c File Reference

#include "hhctrl.h"
#include "stream.h"
#include "wine/debug.h"

Include dependency graph for search.c:

Go to the source code of this file.

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (htmlhelp)
static SearchItem *	SearchCHM_Folder (SearchItem *item, IStorage *pStorage, const WCHAR *folder, const char *needle)
static SearchItem *	alloc_search_item (WCHAR *title, const WCHAR *filename)
static void	fill_search_tree (HWND hwndList, SearchItem *item)
static WCHAR *	SearchCHM_File (IStorage *pStorage, const WCHAR *file, const char *needle)
static SearchItem *	SearchCHM_Storage (SearchItem *item, IStorage *pStorage, const char *needle)
void	InitSearch (HHInfo *info, const char *needle)
void	ReleaseSearch (HHInfo *info)

Function Documentation

alloc_search_item()

static SearchItem * alloc_search_item ( WCHAR *  title, const WCHAR *  filename  )

static

Definition at line 30 of file search.c.

{
    int filename_len = filename ? (lstrlenW(filename)+1)*sizeof(WCHAR) : 0;
    SearchItem *item;
 
    item = heap_alloc_zero(sizeof(SearchItem));
    if(filename)
    {
        item->filename = heap_alloc(filename_len);
        memcpy(item->filename, filename, filename_len);
    }
    item->title = title; /* Already allocated */
 
    return item;
}

Referenced by InitSearch(), and SearchCHM_Storage().

fill_search_tree()

static void fill_search_tree ( HWND  hwndList, SearchItem *  item  )

static

Definition at line 47 of file search.c.

{
    int index = 0;
    LVITEMW lvi;
 
    SendMessageW(hwndList, LVM_DELETEALLITEMS, 0, 0);
    while(item) {
        TRACE("list debug: %s\n", debugstr_w(item->filename));
 
        memset(&lvi, 0, sizeof(lvi));
        lvi.iItem = index++;
        lvi.mask = LVIF_TEXT|LVIF_PARAM;
        lvi.cchTextMax = lstrlenW(item->title)+1;
        lvi.pszText = item->title;
        lvi.lParam = (LPARAM)item;
        item->id = (HTREEITEM)SendMessageW(hwndList, LVM_INSERTITEMW, 0, (LPARAM)&lvi);
        item = item->next;
    }
}

Referenced by InitSearch().

InitSearch()

void InitSearch	(	HHInfo *	info,
		const char *	needle
	)

Definition at line 222 of file search.c.

{
    CHMInfo *chm = info->pCHMInfo;
    SearchItem *root_item = alloc_search_item(NULL, NULL);
 
    SearchCHM_Storage(root_item, chm->pStorage, needle);
    fill_search_tree(info->search.hwndList, root_item->next);
    if(info->search.root)
        ReleaseSearch(info);
    info->search.root = root_item;
}

Referenced by Child_WndProc().

ReleaseSearch()

void ReleaseSearch

(

HHInfo *

info

)

Definition at line 235 of file search.c.

{
    SearchItem *item = info->search.root;
 
    info->search.root = NULL;
    while(item) {
        heap_free(item->filename);
        item = item->next;
    }
}

Referenced by InitSearch(), and ReleaseHelpViewer().

SearchCHM_File()

static WCHAR * SearchCHM_File ( IStorage *  pStorage, const WCHAR *  file, const char *  needle  )

static

Definition at line 73 of file search.c.

{
    char *buffer = heap_alloc(BLOCK_SIZE);
    strbuf_t content, node, node_name;
    IStream *temp_stream = NULL;
    DWORD i, buffer_size = 0;
    WCHAR *title = NULL;
    BOOL found = FALSE;
    stream_t stream;
    HRESULT hres;
 
    hres = IStorage_OpenStream(pStorage, file, NULL, STGM_READ, 0, &temp_stream);
    if(FAILED(hres)) {
        FIXME("Could not open '%s' stream: %08x\n", debugstr_w(file), hres);
        goto cleanup;
    }
 
    strbuf_init(&node);
    strbuf_init(&content);
    strbuf_init(&node_name);
 
    stream_init(&stream, temp_stream);
 
    /* Remove all HTML formatting and record the title */
    while(next_node(&stream, &node)) {
        get_node_name(&node, &node_name);
 
        if(next_content(&stream, &content) && content.len > 1)
        {
            char *text = &content.buf[1];
            int textlen = content.len-1;
 
            if(!_strnicmp(node_name.buf, "title", -1))
            {
                int wlen = MultiByteToWideChar(CP_ACP, 0, text, textlen, NULL, 0);
                title = heap_alloc((wlen+1)*sizeof(WCHAR));
                MultiByteToWideChar(CP_ACP, 0, text, textlen, title, wlen);
                title[wlen] = 0;
            }
 
            buffer = heap_realloc(buffer, buffer_size + textlen + 1);
            memcpy(&buffer[buffer_size], text, textlen);
            buffer[buffer_size + textlen] = '\0';
            buffer_size += textlen;
        }
 
        strbuf_zero(&node);
        strbuf_zero(&content);
    }
 
    /* Convert the buffer to lower case for comparison against the
     * requested text (already in lower case).
     */
    for(i=0;i<buffer_size;i++)
        buffer[i] = tolower(buffer[i]);
 
    /* Search the decoded buffer for the requested text */
    if(strstr(buffer, needle))
        found = TRUE;
 
    strbuf_free(&node);
    strbuf_free(&content);
    strbuf_free(&node_name);
 
cleanup:
    heap_free(buffer);
    if(temp_stream)
        IStream_Release(temp_stream);
    if(!found)
    {
        heap_free(title);
        return NULL;
    }
    return title;
}

Referenced by SearchCHM_Storage().

SearchCHM_Folder()

static SearchItem * SearchCHM_Folder ( SearchItem *  item, IStorage *  pStorage, const WCHAR *  folder, const char *  needle  )

static

Definition at line 200 of file search.c.

{
    IStorage *temp_storage = NULL;
    HRESULT hres;
 
    hres = IStorage_OpenStorage(pStorage, folder, NULL, STGM_READ, NULL, 0, &temp_storage);
    if(FAILED(hres))
    {
        FIXME("Could not open '%s' storage object: %08x\n", debugstr_w(folder), hres);
        return NULL;
    }
    item = SearchCHM_Storage(item, temp_storage, needle);
 
    IStorage_Release(temp_storage);
    return item;
}

Referenced by SearchCHM_Storage().

SearchCHM_Storage()

static SearchItem * SearchCHM_Storage ( SearchItem *  item, IStorage *  pStorage, const char *  needle  )

static

Definition at line 152 of file search.c.

{
    static const WCHAR szHTMext[] = {'.','h','t','m',0};
    IEnumSTATSTG *elem = NULL;
    WCHAR *filename = NULL;
    STATSTG entries;
    HRESULT hres;
    ULONG retr;
 
    hres = IStorage_EnumElements(pStorage, 0, NULL, 0, &elem);
    if(hres != S_OK)
    {
        FIXME("Could not enumerate '/' storage elements: %08x\n", hres);
        return NULL;
    }
    while (IEnumSTATSTG_Next(elem, 1, &entries, &retr) == NOERROR)
    {
        filename = entries.pwcsName;
        while(wcschr(filename, '/'))
            filename = wcschr(filename, '/')+1;
        switch(entries.type) {
        case STGTY_STORAGE:
            item = SearchCHM_Folder(item, pStorage, filename, needle);
            break;
        case STGTY_STREAM:
            if(wcsstr(filename, szHTMext))
            {
                WCHAR *title = SearchCHM_File(pStorage, filename, needle);
 
                if(title)
                {
                    item->next = alloc_search_item(title, entries.pwcsName);
                    item = item->next;
                }
            }
            break;
        default:
            FIXME("Unhandled IStorage stream element.\n");
        }
    }
    IEnumSTATSTG_Release(elem);
    return item;
}

Referenced by InitSearch(), and SearchCHM_Folder().

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

htmlhelp

)