txtrange.c 47.9 KB
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/*
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 * Copyright 2006-2007 Jacek Caban for CodeWeavers
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 *
 * 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
 */

#include <stdarg.h>

#define COBJMACROS

#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "ole2.h"
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#include "mshtmcid.h"
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#include "wine/debug.h"
#include "wine/unicode.h"

#include "mshtml_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(mshtml);

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static const WCHAR brW[] = {'b','r',0};
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static const WCHAR hrW[] = {'h','r',0};
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typedef struct {
    const IHTMLTxtRangeVtbl *lpHTMLTxtRangeVtbl;
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    const IOleCommandTargetVtbl *lpOleCommandTargetVtbl;
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    LONG ref;

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    nsIDOMRange *nsrange;
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    HTMLDocument *doc;

    struct list entry;
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} HTMLTxtRange;

#define HTMLTXTRANGE(x)  ((IHTMLTxtRange*)  &(x)->lpHTMLTxtRangeVtbl)

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typedef struct {
    WCHAR *buf;
    DWORD len;
    DWORD size;
} wstrbuf_t;

typedef struct {
    PRUint16 type;
    nsIDOMNode *node;
    PRUint32 off;
    nsAString str;
    const PRUnichar *p;
} dompos_t;

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typedef enum {
    RU_UNKNOWN,
    RU_CHAR,
    RU_WORD,
    RU_SENTENCE,
    RU_TEXTEDIT
} range_unit_t;

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static HTMLTxtRange *get_range_object(HTMLDocument *doc, IHTMLTxtRange *iface)
{
    HTMLTxtRange *iter;

    LIST_FOR_EACH_ENTRY(iter, &doc->range_list, HTMLTxtRange, entry) {
        if(HTMLTXTRANGE(iter) == iface)
            return iter;
    }

    ERR("Could not find range in document\n");
    return NULL;
}

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static range_unit_t string_to_unit(LPCWSTR str)
{
    static const WCHAR characterW[] =
        {'c','h','a','r','a','c','t','e','r',0};
    static const WCHAR wordW[] =
        {'w','o','r','d',0};
    static const WCHAR sentenceW[] =
        {'s','e','n','t','e','n','c','e',0};
    static const WCHAR texteditW[] =
        {'t','e','x','t','e','d','i','t',0};

    if(!strcmpiW(str, characterW))  return RU_CHAR;
    if(!strcmpiW(str, wordW))       return RU_WORD;
    if(!strcmpiW(str, sentenceW))   return RU_SENTENCE;
    if(!strcmpiW(str, texteditW))   return RU_TEXTEDIT;

    return RU_UNKNOWN;
}

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static int string_to_nscmptype(LPCWSTR str)
{
    static const WCHAR seW[] = {'S','t','a','r','t','T','o','E','n','d',0};
    static const WCHAR ssW[] = {'S','t','a','r','t','T','o','S','t','a','r','t',0};
    static const WCHAR esW[] = {'E','n','d','T','o','S','t','a','r','t',0};
    static const WCHAR eeW[] = {'E','n','d','T','o','E','n','d',0};

    if(!strcmpiW(str, seW))  return NS_START_TO_END;
    if(!strcmpiW(str, ssW))  return NS_START_TO_START;
    if(!strcmpiW(str, esW))  return NS_END_TO_START;
    if(!strcmpiW(str, eeW))  return NS_END_TO_END;

    return -1;
}

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static PRUint16 get_node_type(nsIDOMNode *node)
{
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    PRUint16 type = 0;
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    if(node)
        nsIDOMNode_GetNodeType(node, &type);

    return type;
}

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static BOOL is_elem_tag(nsIDOMNode *node, LPCWSTR istag)
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{
    nsIDOMElement *elem;
    nsAString tag_str;
    const PRUnichar *tag;
    BOOL ret = FALSE;
    nsresult nsres;

    nsres = nsIDOMNode_QueryInterface(node, &IID_nsIDOMElement, (void**)&elem);
    if(NS_FAILED(nsres))
        return FALSE;

    nsAString_Init(&tag_str, NULL);
    nsIDOMElement_GetTagName(elem, &tag_str);
    nsIDOMElement_Release(elem);
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    nsAString_GetData(&tag_str, &tag);
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    ret = !strcmpiW(tag, istag);

    nsAString_Finish(&tag_str);

    return ret;
}

static BOOL is_space_elem(nsIDOMNode *node)
{
    nsIDOMElement *elem;
    nsAString tag_str;
    const PRUnichar *tag;
    BOOL ret = FALSE;
    nsresult nsres;

    nsres = nsIDOMNode_QueryInterface(node, &IID_nsIDOMElement, (void**)&elem);
    if(NS_FAILED(nsres))
        return FALSE;

    nsAString_Init(&tag_str, NULL);
    nsIDOMElement_GetTagName(elem, &tag_str);
    nsIDOMElement_Release(elem);
    nsAString_GetData(&tag_str, &tag);

    ret = !strcmpiW(tag, brW) || !strcmpiW(tag, hrW);
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    nsAString_Finish(&tag_str);

    return ret;
}

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static inline void wstrbuf_init(wstrbuf_t *buf)
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{
    buf->len = 0;
    buf->size = 16;
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    buf->buf = heap_alloc(buf->size * sizeof(WCHAR));
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    *buf->buf = 0;
}

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static inline void wstrbuf_finish(wstrbuf_t *buf)
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{
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    heap_free(buf->buf);
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}

static void wstrbuf_append_len(wstrbuf_t *buf, LPCWSTR str, int len)
{
    if(buf->len+len >= buf->size) {
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        buf->size = 2*buf->size+len;
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        buf->buf = heap_realloc(buf->buf, buf->size * sizeof(WCHAR));
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    }

    memcpy(buf->buf+buf->len, str, len*sizeof(WCHAR));
    buf->len += len;
    buf->buf[buf->len] = 0;
}

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static void wstrbuf_append_nodetxt(wstrbuf_t *buf, LPCWSTR str, int len)
{
    const WCHAR *s = str;
    WCHAR *d;

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    TRACE("%s\n", debugstr_wn(str, len));

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    if(buf->len+len >= buf->size) {
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        buf->size = 2*buf->size+len;
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        buf->buf = heap_realloc(buf->buf, buf->size * sizeof(WCHAR));
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    }

    if(buf->len && isspaceW(buf->buf[buf->len-1])) {
        while(s < str+len && isspaceW(*s))
            s++;
    }

    d = buf->buf+buf->len;
    while(s < str+len) {
        if(isspaceW(*s)) {
            *d++ = ' ';
            s++;
            while(s < str+len && isspaceW(*s))
                s++;
        }else {
            *d++ = *s++;
        }
    }

    buf->len = d - buf->buf;
    *d = 0;
}

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static void wstrbuf_append_node(wstrbuf_t *buf, nsIDOMNode *node)
{

    switch(get_node_type(node)) {
    case TEXT_NODE: {
        nsIDOMText *nstext;
        nsAString data_str;
        const PRUnichar *data;

        nsIDOMNode_QueryInterface(node, &IID_nsIDOMText, (void**)&nstext);

        nsAString_Init(&data_str, NULL);
        nsIDOMText_GetData(nstext, &data_str);
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        nsAString_GetData(&data_str, &data);
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        wstrbuf_append_nodetxt(buf, data, strlenW(data));
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        nsAString_Finish(&data_str);

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        nsIDOMText_Release(nstext);
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        break;
    }
    case ELEMENT_NODE:
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        if(is_elem_tag(node, brW)) {
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            static const WCHAR endlW[] = {'\r','\n'};
            wstrbuf_append_len(buf, endlW, 2);
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        }else if(is_elem_tag(node, hrW)) {
            static const WCHAR endl2W[] = {'\r','\n','\r','\n'};
            wstrbuf_append_len(buf, endl2W, 4);
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        }
    }
}

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static void wstrbuf_append_node_rec(wstrbuf_t *buf, nsIDOMNode *node)
{
    nsIDOMNode *iter, *tmp;

    wstrbuf_append_node(buf, node);

    nsIDOMNode_GetFirstChild(node, &iter);
    while(iter) {
        wstrbuf_append_node_rec(buf, iter);
        nsIDOMNode_GetNextSibling(iter, &tmp);
        nsIDOMNode_Release(iter);
        iter = tmp;
    }
}

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static BOOL fill_nodestr(dompos_t *pos)
{
    nsIDOMText *text;
    nsresult nsres;

    if(pos->type != TEXT_NODE)
        return FALSE;

    nsres = nsIDOMNode_QueryInterface(pos->node, &IID_nsIDOMText, (void**)&text);
    if(NS_FAILED(nsres))
        return FALSE;

    nsAString_Init(&pos->str, NULL);
    nsIDOMText_GetData(text, &pos->str);
    nsIDOMText_Release(text);
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    nsAString_GetData(&pos->str, &pos->p);
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    if(pos->off == -1)
        pos->off = *pos->p ? strlenW(pos->p)-1 : 0;

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    return TRUE;
}

static nsIDOMNode *next_node(nsIDOMNode *iter)
{
    nsIDOMNode *ret, *tmp;
    nsresult nsres;

    if(!iter)
        return NULL;

    nsres = nsIDOMNode_GetFirstChild(iter, &ret);
    if(NS_SUCCEEDED(nsres) && ret)
        return ret;

    nsIDOMNode_AddRef(iter);

    do {
        nsres = nsIDOMNode_GetNextSibling(iter, &ret);
        if(NS_SUCCEEDED(nsres) && ret) {
            nsIDOMNode_Release(iter);
            return ret;
        }

        nsres = nsIDOMNode_GetParentNode(iter, &tmp);
        nsIDOMNode_Release(iter);
        iter = tmp;
    }while(NS_SUCCEEDED(nsres) && iter);

    return NULL;
}

static nsIDOMNode *prev_node(HTMLTxtRange *This, nsIDOMNode *iter)
{
    nsIDOMNode *ret, *tmp;
    nsresult nsres;

    if(!iter) {
        nsIDOMHTMLElement *nselem;

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        nsIDOMHTMLDocument_GetBody(This->doc->nsdoc, &nselem);
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        nsIDOMElement_GetLastChild(nselem, &tmp);
        if(!tmp)
            return (nsIDOMNode*)nselem;

        while(tmp) {
            ret = tmp;
            nsIDOMNode_GetLastChild(ret, &tmp);
        }

        nsIDOMElement_Release(nselem);

        return ret;
    }

    nsres = nsIDOMNode_GetLastChild(iter, &ret);
    if(NS_SUCCEEDED(nsres) && ret)
        return ret;

    nsIDOMNode_AddRef(iter);

    do {
        nsres = nsIDOMNode_GetPreviousSibling(iter, &ret);
        if(NS_SUCCEEDED(nsres) && ret) {
            nsIDOMNode_Release(iter);
            return ret;
        }

        nsres = nsIDOMNode_GetParentNode(iter, &tmp);
        nsIDOMNode_Release(iter);
        iter = tmp;
    }while(NS_SUCCEEDED(nsres) && iter);

    return NULL;
}

static nsIDOMNode *get_child_node(nsIDOMNode *node, PRUint32 off)
{
    nsIDOMNodeList *node_list;
    nsIDOMNode *ret = NULL;

    nsIDOMNode_GetChildNodes(node, &node_list);
    nsIDOMNodeList_Item(node_list, off, &ret);
    nsIDOMNodeList_Release(node_list);

    return ret;
}

static void get_cur_pos(HTMLTxtRange *This, BOOL start, dompos_t *pos)
{
    nsIDOMNode *node;
    PRInt32 off;

    pos->p = NULL;

    if(!start) {
        PRBool collapsed;
        nsIDOMRange_GetCollapsed(This->nsrange, &collapsed);
        start = collapsed;
    }

    if(start) {
        nsIDOMRange_GetStartContainer(This->nsrange, &node);
        nsIDOMRange_GetStartOffset(This->nsrange, &off);
    }else {
        nsIDOMRange_GetEndContainer(This->nsrange, &node);
        nsIDOMRange_GetEndOffset(This->nsrange, &off);
    }

    pos->type = get_node_type(node);
    if(pos->type == ELEMENT_NODE) {
        if(start) {
            pos->node = get_child_node(node, off);
            pos->off = 0;
        }else {
            pos->node = off ? get_child_node(node, off-1) : prev_node(This, node);
            pos->off = -1;
        }

        pos->type = get_node_type(pos->node);
        nsIDOMNode_Release(node);
    }else if(start) {
        pos->node = node;
        pos->off = off;
    }else if(off) {
        pos->node = node;
        pos->off = off-1;
    }else {
        pos->node = prev_node(This, node);
        pos->off = -1;
        nsIDOMNode_Release(node);
    }

    if(pos->type == TEXT_NODE)
        fill_nodestr(pos);
}

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static void set_range_pos(HTMLTxtRange *This, BOOL start, dompos_t *pos)
{
    nsresult nsres;

    if(start) {
        if(pos->type == TEXT_NODE)
            nsres = nsIDOMRange_SetStart(This->nsrange, pos->node, pos->off);
        else
            nsres = nsIDOMRange_SetStartBefore(This->nsrange, pos->node);
    }else {
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        if(pos->type == TEXT_NODE && pos->p[pos->off+1])
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            nsres = nsIDOMRange_SetEnd(This->nsrange, pos->node, pos->off+1);
        else
            nsres = nsIDOMRange_SetEndAfter(This->nsrange, pos->node);
    }

    if(NS_FAILED(nsres))
        ERR("failed: %p %08x\n", pos->node, nsres);
}

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static inline void dompos_release(dompos_t *pos)
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{
    if(pos->node)
        nsIDOMNode_Release(pos->node);

    if(pos->p)
        nsAString_Finish(&pos->str);
}

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static inline void dompos_addref(dompos_t *pos)
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{
    if(pos->node)
        nsIDOMNode_AddRef(pos->node);

    if(pos->type == TEXT_NODE)
        fill_nodestr(pos);
}

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static inline BOOL dompos_cmp(const dompos_t *pos1, const dompos_t *pos2)
{
    return pos1->node == pos2->node && pos1->off == pos2->off;
}

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static void range_to_string(HTMLTxtRange *This, wstrbuf_t *buf)
{
    nsIDOMNode *iter, *tmp;
    dompos_t start_pos, end_pos;
    PRBool collapsed;

    nsIDOMRange_GetCollapsed(This->nsrange, &collapsed);
    if(collapsed) {
        wstrbuf_finish(buf);
        buf->buf = NULL;
        buf->size = 0;
        return;
    }

    get_cur_pos(This, FALSE, &end_pos);
    get_cur_pos(This, TRUE, &start_pos);

    if(start_pos.type == TEXT_NODE) {
        if(start_pos.node == end_pos.node) {
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            wstrbuf_append_nodetxt(buf, start_pos.p+start_pos.off, end_pos.off-start_pos.off+1);
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            iter = start_pos.node;
            nsIDOMNode_AddRef(iter);
        }else {
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            wstrbuf_append_nodetxt(buf, start_pos.p+start_pos.off, strlenW(start_pos.p+start_pos.off));
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            iter = next_node(start_pos.node);
        }
    }else {
        iter = start_pos.node;
        nsIDOMNode_AddRef(iter);
    }

    while(iter != end_pos.node) {
        wstrbuf_append_node(buf, iter);
        tmp = next_node(iter);
        nsIDOMNode_Release(iter);
        iter = tmp;
    }

    nsIDOMNode_AddRef(end_pos.node);

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    if(start_pos.node != end_pos.node) {
        if(end_pos.type == TEXT_NODE)
            wstrbuf_append_nodetxt(buf, end_pos.p, end_pos.off+1);
        else
            wstrbuf_append_node(buf, end_pos.node);
    }
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    nsIDOMNode_Release(iter);
    dompos_release(&start_pos);
    dompos_release(&end_pos);
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    if(buf->len) {
        WCHAR *p;

        for(p = buf->buf+buf->len-1; p >= buf->buf && isspaceW(*p); p--);

        p = strchrW(p, '\r');
        if(p)
            *p = 0;
    }
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}

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HRESULT get_node_text(HTMLDOMNode *node, BSTR *ret)
{
    wstrbuf_t buf;
    HRESULT hres = S_OK;

    wstrbuf_init(&buf);
    wstrbuf_append_node_rec(&buf, node->nsnode);
    if(buf.buf) {
        *ret = SysAllocString(buf.buf);
        if(!*ret)
            hres = E_OUTOFMEMORY;
    }else {
        *ret = NULL;
    }
    wstrbuf_finish(&buf);

    if(SUCCEEDED(hres))
        TRACE("ret %s\n", debugstr_w(*ret));
    return hres;
}

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static WCHAR get_pos_char(const dompos_t *pos)
{
    switch(pos->type) {
    case TEXT_NODE:
        return pos->p[pos->off];
    case ELEMENT_NODE:
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        if(is_space_elem(pos->node))
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            return '\n';
    }

    return 0;
}

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static void end_space(const dompos_t *pos, dompos_t *new_pos)
{
    const WCHAR *p;

    *new_pos = *pos;
    dompos_addref(new_pos);

    if(pos->type != TEXT_NODE)
        return;

    p = new_pos->p+new_pos->off;

    if(!*p || !isspace(*p))
        return;

    while(p[1] && isspace(p[1]))
        p++;

    new_pos->off = p - new_pos->p;
}

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static WCHAR next_char(const dompos_t *pos, dompos_t *new_pos)
{
    nsIDOMNode *iter, *tmp;
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    dompos_t last_space, tmp_pos;
    const WCHAR *p;
    WCHAR cspace = 0;

    if(pos->type == TEXT_NODE && pos->off != -1 && pos->p[pos->off]) {
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        p = pos->p+pos->off;

        if(isspace(*p))
            while(isspaceW(*++p));
        else
            p++;

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        if(*p && isspaceW(*p)) {
            cspace = ' ';
            while(p[1] && isspaceW(p[1]))
                p++;
        }
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        if(*p) {
            *new_pos = *pos;
            new_pos->off = p - pos->p;
            dompos_addref(new_pos);

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            return cspace ? cspace : *p;
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        }else {
            last_space = *pos;
            last_space.off = p - pos->p;
            dompos_addref(&last_space);
        }
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    }

    iter = next_node(pos->node);

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    while(iter) {
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        switch(get_node_type(iter)) {
        case TEXT_NODE:
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            tmp_pos.node = iter;
            tmp_pos.type = TEXT_NODE;
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            tmp_pos.off = 0;
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            dompos_addref(&tmp_pos);

            p = tmp_pos.p;

            if(!*p) {
                dompos_release(&tmp_pos);
                break;
            }else if(isspaceW(*p)) {
                if(cspace)
                    dompos_release(&last_space);
                else
                    cspace = ' ';

                while(p[1] && isspaceW(p[1]))
                      p++;

                tmp_pos.off = p-tmp_pos.p;

                if(!p[1]) {
                    last_space = tmp_pos;
                    break;
                }

                *new_pos = tmp_pos;
                nsIDOMNode_Release(iter);
                return cspace;
            }else if(cspace) {
                *new_pos = last_space;
                dompos_release(&tmp_pos);
                nsIDOMNode_Release(iter);

                return cspace;
            }else if(*p) {
                tmp_pos.off = 0;
                *new_pos = tmp_pos;
            }

            nsIDOMNode_Release(iter);
            return *p;
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        case ELEMENT_NODE:
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            if(is_elem_tag(iter, brW)) {
                if(cspace)
                    dompos_release(&last_space);
                cspace = '\n';

                nsIDOMNode_AddRef(iter);
                last_space.node = iter;
                last_space.type = ELEMENT_NODE;
                last_space.off = 0;
                last_space.p = NULL;
            }else if(is_elem_tag(iter, hrW)) {
                if(cspace) {
                    *new_pos = last_space;
                    nsIDOMNode_Release(iter);
                    return cspace;
                }
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                new_pos->node = iter;
                new_pos->type = ELEMENT_NODE;
                new_pos->off = 0;
                new_pos->p = NULL;
                return '\n';
            }
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        }

        tmp = iter;
        iter = next_node(iter);
        nsIDOMNode_Release(tmp);
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    }
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    if(cspace) {
        *new_pos = last_space;
    }else {
        *new_pos = *pos;
        dompos_addref(new_pos);
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    }

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    return cspace;
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}

static WCHAR prev_char(HTMLTxtRange *This, const dompos_t *pos, dompos_t *new_pos)
{
    nsIDOMNode *iter, *tmp;
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    const WCHAR *p;
    BOOL skip_space = FALSE;
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    if(pos->type == TEXT_NODE && isspaceW(pos->p[pos->off]))
        skip_space = TRUE;

    if(pos->type == TEXT_NODE && pos->off) {
        p = pos->p+pos->off-1;

        if(skip_space) {
            while(p >= pos->p && isspace(*p))
                p--;
        }

        if(p >= pos->p) {
            *new_pos = *pos;
            new_pos->off = p-pos->p;
            dompos_addref(new_pos);
            return new_pos->p[new_pos->off];
        }
748 749 750 751
    }

    iter = prev_node(This, pos->node);

752
    while(iter) {
753
        switch(get_node_type(iter)) {
754 755 756 757 758
        case TEXT_NODE: {
            dompos_t tmp_pos;

            tmp_pos.node = iter;
            tmp_pos.type = TEXT_NODE;
759
            tmp_pos.off = 0;
760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778
            dompos_addref(&tmp_pos);

            p = tmp_pos.p + strlenW(tmp_pos.p)-1;

            if(skip_space) {
                while(p >= tmp_pos.p && isspaceW(*p))
                    p--;
            }

            if(p < tmp_pos.p) {
                dompos_release(&tmp_pos);
                break;
            }

            tmp_pos.off = p-tmp_pos.p;
            *new_pos = tmp_pos;
            nsIDOMNode_Release(iter);
            return *p;
        }
779 780

        case ELEMENT_NODE:
781 782 783 784 785 786
            if(is_elem_tag(iter, brW)) {
                if(skip_space) {
                    skip_space = FALSE;
                    break;
                }
            }else if(!is_elem_tag(iter, hrW)) {
787 788 789
                break;
            }

790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806
            new_pos->node = iter;
            new_pos->type = ELEMENT_NODE;
            new_pos->off = 0;
            new_pos->p = NULL;
            return '\n';
        }

        tmp = iter;
        iter = prev_node(This, iter);
        nsIDOMNode_Release(tmp);
    }

    *new_pos = *pos;
    dompos_addref(new_pos);
    return 0;
}

807 808
static long move_next_chars(long cnt, const dompos_t *pos, BOOL col, const dompos_t *bound_pos,
        BOOL *bounded, dompos_t *new_pos)
809 810 811 812 813
{
    dompos_t iter, tmp;
    long ret = 0;
    WCHAR c;

814 815 816
    if(bounded)
        *bounded = FALSE;

817 818 819 820
    if(col)
        ret++;

    if(ret >= cnt) {
821
        end_space(pos, new_pos);
822 823 824 825 826 827 828 829 830
        return ret;
    }

    c = next_char(pos, &iter);
    ret++;

    while(ret < cnt) {
        tmp = iter;
        c = next_char(&tmp, &iter);
831 832
        dompos_release(&tmp);
        if(!c)
833
            break;
834

835
        ret++;
836 837 838 839
        if(bound_pos && dompos_cmp(&tmp, bound_pos)) {
            *bounded = TRUE;
            ret++;
        }
840 841 842 843 844 845
    }

    *new_pos = iter;
    return ret;
}

846 847
static long move_prev_chars(HTMLTxtRange *This, long cnt, const dompos_t *pos, BOOL end,
        const dompos_t *bound_pos, BOOL *bounded, dompos_t *new_pos)
848 849 850
{
    dompos_t iter, tmp;
    long ret = 0;
851
    BOOL prev_eq = FALSE;
852 853
    WCHAR c;

854 855 856
    if(bounded)
        *bounded = FALSE;

857 858 859 860 861 862 863
    c = prev_char(This, pos, &iter);
    if(c)
        ret++;

    while(c && ret < cnt) {
        tmp = iter;
        c = prev_char(This, &tmp, &iter);
864
        dompos_release(&tmp);
865 866 867 868 869
        if(!c) {
            if(end)
                ret++;
            break;
        }
870

871
        ret++;
872

873
        if(prev_eq) {
874
            *bounded = TRUE;
875
            ret++;
876
        }
877 878

        prev_eq = bound_pos && dompos_cmp(&iter, bound_pos);
879 880 881
    }

    *new_pos = iter;
882
    return ret;
883 884
}

885
static long find_prev_space(HTMLTxtRange *This, const dompos_t *pos, BOOL first_space, dompos_t *ret)
886 887 888 889
{
    dompos_t iter, tmp;
    WCHAR c;

890 891
    c = prev_char(This, pos, &iter);
    if(!c || (first_space && isspaceW(c))) {
892
        *ret = iter;
893 894 895
        return FALSE;
    }

896
    while(1) {
897
        tmp = iter;
898 899 900 901 902
        c = prev_char(This, &tmp, &iter);
        if(!c || isspaceW(c)) {
            dompos_release(&iter);
            break;
        }
903 904 905
        dompos_release(&tmp);
    }

906
    *ret = tmp;
907 908 909
    return TRUE;
}

910
static int find_word_end(const dompos_t *pos, dompos_t *ret)
911 912
{
    dompos_t iter, tmp;
913
    int cnt = 1;
914
    WCHAR c;
915 916 917 918 919 920
    c = get_pos_char(pos);
    if(isspaceW(c)) {
        *ret = *pos;
        dompos_addref(ret);
        return 0;
    }
921

922 923
    c = next_char(pos, &iter);
    if(!c) {
924
        *ret = iter;
925 926 927 928 929 930
        return 0;
    }
    if(c == '\n') {
        *ret = *pos;
        dompos_addref(ret);
        return 0;
931 932
    }

933
    while(c && !isspaceW(c)) {
934
        tmp = iter;
935 936
        c = next_char(&tmp, &iter);
        if(c == '\n') {
937
            dompos_release(&iter);
938 939 940 941
            iter = tmp;
        }else {
            cnt++;
            dompos_release(&tmp);
942 943 944
        }
    }

945 946
    *ret = iter;
    return cnt;
947 948
}

949 950 951 952
static long move_next_words(long cnt, const dompos_t *pos, dompos_t *new_pos)
{
    dompos_t iter, tmp;
    long ret = 0;
953
    WCHAR c;
954

955 956 957
    c = get_pos_char(pos);
    if(isspaceW(c)) {
        end_space(pos, &iter);
958
        ret++;
959 960 961 962 963 964 965 966 967 968 969 970
    }else {
        c = next_char(pos, &iter);
        if(c && isspaceW(c))
            ret++;
    }

    while(c && ret < cnt) {
        tmp = iter;
        c = next_char(&tmp, &iter);
        dompos_release(&tmp);
        if(isspaceW(c))
            ret++;
971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997
    }

    *new_pos = iter;
    return ret;
}

static long move_prev_words(HTMLTxtRange *This, long cnt, const dompos_t *pos, dompos_t *new_pos)
{
    dompos_t iter, tmp;
    long ret = 0;

    iter = *pos;
    dompos_addref(&iter);

    while(ret < cnt) {
        if(!find_prev_space(This, &iter, FALSE, &tmp))
            break;

        dompos_release(&iter);
        iter = tmp;
        ret++;
    }

    *new_pos = iter;
    return ret;
}

998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014
#define HTMLTXTRANGE_THIS(iface) DEFINE_THIS(HTMLTxtRange, HTMLTxtRange, iface)

static HRESULT WINAPI HTMLTxtRange_QueryInterface(IHTMLTxtRange *iface, REFIID riid, void **ppv)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);

    *ppv = NULL;

    if(IsEqualGUID(&IID_IUnknown, riid)) {
        TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
        *ppv = HTMLTXTRANGE(This);
    }else if(IsEqualGUID(&IID_IDispatch, riid)) {
        TRACE("(%p)->(IID_IDispatch %p)\n", This, ppv);
        *ppv = HTMLTXTRANGE(This);
    }else if(IsEqualGUID(&IID_IHTMLTxtRange, riid)) {
        TRACE("(%p)->(IID_IHTMLTxtRange %p)\n", This, ppv);
        *ppv = HTMLTXTRANGE(This);
1015 1016 1017
    }else if(IsEqualGUID(&IID_IOleCommandTarget, riid)) {
        TRACE("(%p)->(IID_IOleCommandTarget %p)\n", This, ppv);
        *ppv = CMDTARGET(This);
1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033
    }

    if(*ppv) {
        IUnknown_AddRef((IUnknown*)*ppv);
        return S_OK;
    }

    WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
    return E_NOINTERFACE;
}

static ULONG WINAPI HTMLTxtRange_AddRef(IHTMLTxtRange *iface)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    LONG ref = InterlockedIncrement(&This->ref);

1034
    TRACE("(%p) ref=%d\n", This, ref);
1035 1036 1037 1038 1039 1040 1041 1042 1043

    return ref;
}

static ULONG WINAPI HTMLTxtRange_Release(IHTMLTxtRange *iface)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    LONG ref = InterlockedDecrement(&This->ref);

1044
    TRACE("(%p) ref=%d\n", This, ref);
1045 1046

    if(!ref) {
1047 1048
        if(This->nsrange)
            nsISelection_Release(This->nsrange);
1049 1050
        if(This->doc)
            list_remove(&This->entry);
1051
        heap_free(This);
1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067
    }

    return ref;
}

static HRESULT WINAPI HTMLTxtRange_GetTypeInfoCount(IHTMLTxtRange *iface, UINT *pctinfo)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    FIXME("(%p)->(%p)\n", This, pctinfo);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_GetTypeInfo(IHTMLTxtRange *iface, UINT iTInfo,
                                               LCID lcid, ITypeInfo **ppTInfo)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1068
    FIXME("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
1069 1070 1071 1072 1073 1074 1075 1076
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_GetIDsOfNames(IHTMLTxtRange *iface, REFIID riid,
                                                 LPOLESTR *rgszNames, UINT cNames,
                                                 LCID lcid, DISPID *rgDispId)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1077
    FIXME("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
1078 1079 1080 1081 1082 1083 1084 1085 1086
          lcid, rgDispId);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_Invoke(IHTMLTxtRange *iface, DISPID dispIdMember,
                            REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
                            VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1087
    FIXME("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
1088 1089 1090 1091 1092 1093 1094
          lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_get_htmlText(IHTMLTxtRange *iface, BSTR *p)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112

    TRACE("(%p)->(%p)\n", This, p);

    *p = NULL;

    if(This->nsrange) {
        nsIDOMDocumentFragment *fragment;
        nsresult nsres;

        nsres = nsIDOMRange_CloneContents(This->nsrange, &fragment);
        if(NS_SUCCEEDED(nsres)) {
            const PRUnichar *nstext;
            nsAString nsstr;

            nsAString_Init(&nsstr, NULL);
            nsnode_to_nsstring((nsIDOMNode*)fragment, &nsstr);
            nsIDOMDocumentFragment_Release(fragment);

1113
            nsAString_GetData(&nsstr, &nstext);
1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126
            *p = SysAllocString(nstext);

            nsAString_Finish(&nsstr);
        }
    }

    if(!*p) {
        const WCHAR emptyW[] = {0};
        *p = SysAllocString(emptyW);
    }

    TRACE("return %s\n", debugstr_w(*p));
    return S_OK;
1127 1128 1129 1130 1131
}

static HRESULT WINAPI HTMLTxtRange_put_text(IHTMLTxtRange *iface, BSTR v)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1132 1133 1134 1135 1136 1137 1138 1139 1140 1141
    nsIDOMText *text_node;
    nsAString text_str;
    nsresult nsres;

    TRACE("(%p)->(%s)\n", This, debugstr_w(v));

    if(!This->doc)
        return MSHTML_E_NODOC;

    nsAString_Init(&text_str, v);
1142
    nsres = nsIDOMHTMLDocument_CreateTextNode(This->doc->nsdoc, &text_str, &text_node);
1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155
    nsAString_Finish(&text_str);
    if(NS_FAILED(nsres)) {
        ERR("CreateTextNode failed: %08x\n", nsres);
        return S_OK;
    }
    nsres = nsIDOMRange_DeleteContents(This->nsrange);
    if(NS_FAILED(nsres))
        ERR("DeleteContents failed: %08x\n", nsres);

    nsres = nsIDOMRange_InsertNode(This->nsrange, (nsIDOMNode*)text_node);
    if(NS_FAILED(nsres))
        ERR("InsertNode failed: %08x\n", nsres);

1156 1157 1158 1159 1160
    nsres = nsIDOMRange_SetEndAfter(This->nsrange, (nsIDOMNode*)text_node);
    if(NS_FAILED(nsres))
        ERR("SetEndAfter failed: %08x\n", nsres);

    return IHTMLTxtRange_collapse(HTMLTXTRANGE(This), VARIANT_FALSE);
1161 1162 1163 1164 1165
}

static HRESULT WINAPI HTMLTxtRange_get_text(IHTMLTxtRange *iface, BSTR *p)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1166
    wstrbuf_t buf;
1167 1168 1169

    TRACE("(%p)->(%p)\n", This, p);

1170 1171 1172 1173
    *p = NULL;
    if(!This->nsrange)
        return S_OK;

1174 1175 1176 1177 1178
    wstrbuf_init(&buf);
    range_to_string(This, &buf);
    if(buf.buf)
        *p = SysAllocString(buf.buf);
    wstrbuf_finish(&buf);
1179

1180
    TRACE("ret %s\n", debugstr_w(*p));
1181
    return S_OK;
1182 1183 1184 1185 1186
}

static HRESULT WINAPI HTMLTxtRange_parentElement(IHTMLTxtRange *iface, IHTMLElement **parent)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203
    nsIDOMNode *nsnode, *tmp;
    HTMLDOMNode *node;

    TRACE("(%p)->(%p)\n", This, parent);

    nsIDOMRange_GetCommonAncestorContainer(This->nsrange, &nsnode);
    while(nsnode && get_node_type(nsnode) != ELEMENT_NODE) {
        nsIDOMNode_GetParentNode(nsnode, &tmp);
        nsIDOMNode_Release(nsnode);
        nsnode = tmp;
    }

    if(!nsnode) {
        *parent = NULL;
        return S_OK;
    }

1204
    node = get_node(This->doc, nsnode, TRUE);
1205 1206
    nsIDOMNode_Release(nsnode);

1207
    return IHTMLDOMNode_QueryInterface(HTMLDOMNODE(node), &IID_IHTMLElement, (void**)parent);
1208 1209 1210 1211 1212
}

static HRESULT WINAPI HTMLTxtRange_duplicate(IHTMLTxtRange *iface, IHTMLTxtRange **Duplicate)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1213 1214 1215 1216 1217
    nsIDOMRange *nsrange = NULL;

    TRACE("(%p)->(%p)\n", This, Duplicate);

    nsIDOMRange_CloneRange(This->nsrange, &nsrange);
1218
    *Duplicate = HTMLTxtRange_Create(This->doc, nsrange);
1219 1220 1221
    nsIDOMRange_Release(nsrange);

    return S_OK;
1222 1223 1224 1225 1226 1227
}

static HRESULT WINAPI HTMLTxtRange_inRange(IHTMLTxtRange *iface, IHTMLTxtRange *Range,
        VARIANT_BOOL *InRange)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252
    HTMLTxtRange *src_range;
    PRInt16 nsret = 0;
    nsresult nsres;

    TRACE("(%p)->(%p %p)\n", This, Range, InRange);

    *InRange = VARIANT_FALSE;

    src_range = get_range_object(This->doc, Range);
    if(!src_range)
        return E_FAIL;

    nsres = nsIDOMRange_CompareBoundaryPoints(This->nsrange, NS_START_TO_START,
            src_range->nsrange, &nsret);
    if(NS_SUCCEEDED(nsres) && nsret <= 0) {
        nsres = nsIDOMRange_CompareBoundaryPoints(This->nsrange, NS_END_TO_END,
                src_range->nsrange, &nsret);
        if(NS_SUCCEEDED(nsres) && nsret >= 0)
            *InRange = VARIANT_TRUE;
    }

    if(NS_FAILED(nsres))
        ERR("CompareBoundaryPoints failed: %08x\n", nsres);

    return S_OK;
1253 1254 1255 1256 1257 1258
}

static HRESULT WINAPI HTMLTxtRange_isEqual(IHTMLTxtRange *iface, IHTMLTxtRange *Range,
        VARIANT_BOOL *IsEqual)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283
    HTMLTxtRange *src_range;
    PRInt16 nsret = 0;
    nsresult nsres;

    TRACE("(%p)->(%p %p)\n", This, Range, IsEqual);

    *IsEqual = VARIANT_FALSE;

    src_range = get_range_object(This->doc, Range);
    if(!src_range)
        return E_FAIL;

    nsres = nsIDOMRange_CompareBoundaryPoints(This->nsrange, NS_START_TO_START,
            src_range->nsrange, &nsret);
    if(NS_SUCCEEDED(nsres) && !nsret) {
        nsres = nsIDOMRange_CompareBoundaryPoints(This->nsrange, NS_END_TO_END,
                src_range->nsrange, &nsret);
        if(NS_SUCCEEDED(nsres) && !nsret)
            *IsEqual = VARIANT_TRUE;
    }

    if(NS_FAILED(nsres))
        ERR("CompareBoundaryPoints failed: %08x\n", nsres);

    return S_OK;
1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295
}

static HRESULT WINAPI HTMLTxtRange_scrollIntoView(IHTMLTxtRange *iface, VARIANT_BOOL fStart)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    FIXME("(%p)->(%x)\n", This, fStart);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_collapse(IHTMLTxtRange *iface, VARIANT_BOOL Start)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1296 1297 1298 1299 1300

    TRACE("(%p)->(%x)\n", This, Start);

    nsIDOMRange_Collapse(This->nsrange, Start != VARIANT_FALSE);
    return S_OK;
1301 1302 1303 1304 1305
}

static HRESULT WINAPI HTMLTxtRange_expand(IHTMLTxtRange *iface, BSTR Unit, VARIANT_BOOL *Success)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1306 1307 1308 1309 1310 1311 1312 1313
    range_unit_t unit;

    TRACE("(%p)->(%s %p)\n", This, debugstr_w(Unit), Success);

    unit = string_to_unit(Unit);
    if(unit == RU_UNKNOWN)
        return E_INVALIDARG;

1314 1315
    *Success = VARIANT_FALSE;

1316 1317
    switch(unit) {
    case RU_WORD: {
1318 1319 1320 1321
        dompos_t end_pos, start_pos, new_start_pos, new_end_pos;
        PRBool collapsed;

        nsIDOMRange_GetCollapsed(This->nsrange, &collapsed);
1322 1323 1324

        get_cur_pos(This, TRUE, &start_pos);
        get_cur_pos(This, FALSE, &end_pos);
1325

1326 1327 1328
        if(find_word_end(&end_pos, &new_end_pos) || collapsed) {
            set_range_pos(This, FALSE, &new_end_pos);
            *Success = VARIANT_TRUE;
1329 1330
        }

1331 1332 1333 1334 1335 1336
        if(start_pos.type && (get_pos_char(&end_pos) || !dompos_cmp(&new_end_pos, &end_pos))) {
            if(find_prev_space(This, &start_pos, TRUE, &new_start_pos)) {
                set_range_pos(This, TRUE, &new_start_pos);
                *Success = VARIANT_TRUE;
            }
            dompos_release(&new_start_pos);
1337 1338
        }

1339
        dompos_release(&new_end_pos);
1340
        dompos_release(&end_pos);
1341
        dompos_release(&start_pos);
1342 1343 1344

        break;
    }
1345 1346 1347 1348 1349

    case RU_TEXTEDIT: {
        nsIDOMHTMLElement *nsbody = NULL;
        nsresult nsres;

1350
        nsres = nsIDOMHTMLDocument_GetBody(This->doc->nsdoc, &nsbody);
1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366
        if(NS_FAILED(nsres) || !nsbody) {
            ERR("Could not get body: %08x\n", nsres);
            break;
        }

        nsres = nsIDOMRange_SelectNodeContents(This->nsrange, (nsIDOMNode*)nsbody);
        nsIDOMHTMLElement_Release(nsbody);
        if(NS_FAILED(nsres)) {
            ERR("Collapse failed: %08x\n", nsres);
            break;
        }

        *Success = VARIANT_TRUE;
        break;
    }

1367 1368 1369 1370 1371
    default:
        FIXME("Unimplemented unit %s\n", debugstr_w(Unit));
    }

    return S_OK;
1372 1373 1374
}

static HRESULT WINAPI HTMLTxtRange_move(IHTMLTxtRange *iface, BSTR Unit,
1375
        LONG Count, LONG *ActualCount)
1376 1377
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1378 1379
    range_unit_t unit;

1380
    TRACE("(%p)->(%s %d %p)\n", This, debugstr_w(Unit), Count, ActualCount);
1381 1382 1383 1384 1385 1386 1387

    unit = string_to_unit(Unit);
    if(unit == RU_UNKNOWN)
        return E_INVALIDARG;

    if(!Count) {
        *ActualCount = 0;
1388
        return IHTMLTxtRange_collapse(HTMLTXTRANGE(This), TRUE);
1389 1390 1391 1392 1393 1394 1395 1396 1397
    }

    switch(unit) {
    case RU_CHAR: {
        dompos_t cur_pos, new_pos;

        get_cur_pos(This, TRUE, &cur_pos);

        if(Count > 0) {
1398
            *ActualCount = move_next_chars(Count, &cur_pos, TRUE, NULL, NULL, &new_pos);
1399 1400
            set_range_pos(This, FALSE, &new_pos);
            dompos_release(&new_pos);
1401 1402

            IHTMLTxtRange_collapse(HTMLTXTRANGE(This), FALSE);
1403
        }else {
1404
            *ActualCount = -move_prev_chars(This, -Count, &cur_pos, FALSE, NULL, NULL, &new_pos);
1405 1406 1407 1408 1409 1410 1411 1412 1413
            set_range_pos(This, TRUE, &new_pos);
            IHTMLTxtRange_collapse(HTMLTXTRANGE(This), TRUE);
            dompos_release(&new_pos);
        }

        dompos_release(&cur_pos);
        break;
    }

1414 1415 1416 1417 1418 1419 1420 1421 1422
    case RU_WORD: {
        dompos_t cur_pos, new_pos;

        get_cur_pos(This, TRUE, &cur_pos);

        if(Count > 0) {
            *ActualCount = move_next_words(Count, &cur_pos, &new_pos);
            set_range_pos(This, FALSE, &new_pos);
            dompos_release(&new_pos);
1423
            IHTMLTxtRange_collapse(HTMLTXTRANGE(This), FALSE);
1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434
        }else {
            *ActualCount = -move_prev_words(This, -Count, &cur_pos, &new_pos);
            set_range_pos(This, TRUE, &new_pos);
            IHTMLTxtRange_collapse(HTMLTXTRANGE(This), TRUE);
            dompos_release(&new_pos);
        }

        dompos_release(&cur_pos);
        break;
    }

1435 1436 1437 1438
    default:
        FIXME("unimplemented unit %s\n", debugstr_w(Unit));
    }

1439
    TRACE("ret %d\n", *ActualCount);
1440
    return S_OK;
1441 1442 1443
}

static HRESULT WINAPI HTMLTxtRange_moveStart(IHTMLTxtRange *iface, BSTR Unit,
1444
        LONG Count, LONG *ActualCount)
1445 1446
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1447 1448
    range_unit_t unit;

1449
    TRACE("(%p)->(%s %d %p)\n", This, debugstr_w(Unit), Count, ActualCount);
1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491

    unit = string_to_unit(Unit);
    if(unit == RU_UNKNOWN)
        return E_INVALIDARG;

    if(!Count) {
        *ActualCount = 0;
        return S_OK;
    }

    switch(unit) {
    case RU_CHAR: {
        dompos_t start_pos, end_pos, new_pos;
        PRBool collapsed;

        get_cur_pos(This, TRUE, &start_pos);
        get_cur_pos(This, FALSE, &end_pos);
        nsIDOMRange_GetCollapsed(This->nsrange, &collapsed);

        if(Count > 0) {
            BOOL bounded;

            *ActualCount = move_next_chars(Count, &start_pos, collapsed, &end_pos, &bounded, &new_pos);
            set_range_pos(This, !bounded, &new_pos);
            if(bounded)
                IHTMLTxtRange_collapse(HTMLTXTRANGE(This), FALSE);
        }else {
            *ActualCount = -move_prev_chars(This, -Count, &start_pos, FALSE, NULL, NULL, &new_pos);
            set_range_pos(This, TRUE, &new_pos);
        }

        dompos_release(&start_pos);
        dompos_release(&end_pos);
        dompos_release(&new_pos);
        break;
    }

    default:
        FIXME("unimplemented unit %s\n", debugstr_w(Unit));
    }

    return S_OK;
1492 1493 1494
}

static HRESULT WINAPI HTMLTxtRange_moveEnd(IHTMLTxtRange *iface, BSTR Unit,
1495
        LONG Count, LONG *ActualCount)
1496 1497
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1498 1499
    range_unit_t unit;

1500
    TRACE("(%p)->(%s %d %p)\n", This, debugstr_w(Unit), Count, ActualCount);
1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512

    unit = string_to_unit(Unit);
    if(unit == RU_UNKNOWN)
        return E_INVALIDARG;

    if(!Count) {
        *ActualCount = 0;
        return S_OK;
    }

    switch(unit) {
    case RU_CHAR: {
1513
        dompos_t start_pos, end_pos, new_pos;
1514 1515
        PRBool collapsed;

1516 1517
        get_cur_pos(This, TRUE, &start_pos);
        get_cur_pos(This, FALSE, &end_pos);
1518 1519 1520
        nsIDOMRange_GetCollapsed(This->nsrange, &collapsed);

        if(Count > 0) {
1521
            *ActualCount = move_next_chars(Count, &end_pos, collapsed, NULL, NULL, &new_pos);
1522 1523
            set_range_pos(This, FALSE, &new_pos);
        }else {
1524 1525 1526 1527 1528
            BOOL bounded;

            *ActualCount = -move_prev_chars(This, -Count, &end_pos, TRUE, &start_pos, &bounded, &new_pos);
            set_range_pos(This, bounded, &new_pos);
            if(bounded)
1529 1530 1531
                IHTMLTxtRange_collapse(HTMLTXTRANGE(This), TRUE);
        }

1532 1533
        dompos_release(&start_pos);
        dompos_release(&end_pos);
1534 1535 1536 1537 1538 1539 1540 1541 1542
        dompos_release(&new_pos);
        break;
    }

    default:
        FIXME("unimplemented unit %s\n", debugstr_w(Unit));
    }

    return S_OK;
1543 1544 1545 1546 1547
}

static HRESULT WINAPI HTMLTxtRange_select(IHTMLTxtRange *iface)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565

    TRACE("(%p)\n", This);

    if(This->doc->nscontainer) {
        nsIDOMWindow *dom_window = NULL;
        nsISelection *nsselection;

        nsIWebBrowser_GetContentDOMWindow(This->doc->nscontainer->webbrowser, &dom_window);
        nsIDOMWindow_GetSelection(dom_window, &nsselection);
        nsIDOMWindow_Release(dom_window);

        nsISelection_RemoveAllRanges(nsselection);
        nsISelection_AddRange(nsselection, This->nsrange);

        nsISelection_Release(nsselection);
    }

    return S_OK;
1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590
}

static HRESULT WINAPI HTMLTxtRange_pasteHTML(IHTMLTxtRange *iface, BSTR html)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    FIXME("(%p)->(%s)\n", This, debugstr_w(html));
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_moveToElementText(IHTMLTxtRange *iface, IHTMLElement *element)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    FIXME("(%p)->(%p)\n", This, element);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_setEndPoint(IHTMLTxtRange *iface, BSTR how,
        IHTMLTxtRange *SourceRange)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    FIXME("(%p)->(%s %p)\n", This, debugstr_w(how), SourceRange);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_compareEndPoints(IHTMLTxtRange *iface, BSTR how,
1591
        IHTMLTxtRange *SourceRange, LONG *ret)
1592 1593
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614
    HTMLTxtRange *src_range;
    PRInt16 nsret = 0;
    int nscmpt;
    nsresult nsres;

    TRACE("(%p)->(%s %p %p)\n", This, debugstr_w(how), SourceRange, ret);

    nscmpt = string_to_nscmptype(how);
    if(nscmpt == -1)
        return E_INVALIDARG;

    src_range = get_range_object(This->doc, SourceRange);
    if(!src_range)
        return E_FAIL;

    nsres = nsIDOMRange_CompareBoundaryPoints(This->nsrange, nscmpt, src_range->nsrange, &nsret);
    if(NS_FAILED(nsres))
        ERR("CompareBoundaryPoints failed: %08x\n", nsres);

    *ret = nsret;
    return S_OK;
1615 1616 1617
}

static HRESULT WINAPI HTMLTxtRange_findText(IHTMLTxtRange *iface, BSTR String,
1618
        LONG count, LONG Flags, VARIANT_BOOL *Success)
1619 1620
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1621
    FIXME("(%p)->(%s %d %08x %p)\n", This, debugstr_w(String), count, Flags, Success);
1622 1623 1624
    return E_NOTIMPL;
}

1625
static HRESULT WINAPI HTMLTxtRange_moveToPoint(IHTMLTxtRange *iface, LONG x, LONG y)
1626 1627
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
1628
    FIXME("(%p)->(%d %d)\n", This, x, y);
1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_getBookmark(IHTMLTxtRange *iface, BSTR *Bookmark)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    FIXME("(%p)->(%p)\n", This, Bookmark);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_moveToBookmark(IHTMLTxtRange *iface, BSTR Bookmark,
        VARIANT_BOOL *Success)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    FIXME("(%p)->(%s %p)\n", This, debugstr_w(Bookmark), Success);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_queryCommandSupported(IHTMLTxtRange *iface, BSTR cmdID,
        VARIANT_BOOL *pfRet)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    FIXME("(%p)->(%s %p)\n", This, debugstr_w(cmdID), pfRet);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_queryCommandEnabled(IHTMLTxtRange *iface, BSTR cmdID,
        VARIANT_BOOL *pfRet)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    FIXME("(%p)->(%s %p)\n", This, debugstr_w(cmdID), pfRet);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_queryCommandState(IHTMLTxtRange *iface, BSTR cmdID,
        VARIANT_BOOL *pfRet)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    FIXME("(%p)->(%s %p)\n", This, debugstr_w(cmdID), pfRet);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_queryCommandIndeterm(IHTMLTxtRange *iface, BSTR cmdID,
        VARIANT_BOOL *pfRet)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    FIXME("(%p)->(%s %p)\n", This, debugstr_w(cmdID), pfRet);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_queryCommandText(IHTMLTxtRange *iface, BSTR cmdID,
        BSTR *pcmdText)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    FIXME("(%p)->(%s %p)\n", This, debugstr_w(cmdID), pcmdText);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_queryCommandValue(IHTMLTxtRange *iface, BSTR cmdID,
        VARIANT *pcmdValue)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    FIXME("(%p)->(%s %p)\n", This, debugstr_w(cmdID), pcmdValue);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_execCommand(IHTMLTxtRange *iface, BSTR cmdID,
        VARIANT_BOOL showUI, VARIANT value, VARIANT_BOOL *pfRet)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    FIXME("(%p)->(%s %x v %p)\n", This, debugstr_w(cmdID), showUI, pfRet);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLTxtRange_execCommandShowHelp(IHTMLTxtRange *iface, BSTR cmdID,
        VARIANT_BOOL *pfRet)
{
    HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
    FIXME("(%p)->(%s %p)\n", This, debugstr_w(cmdID), pfRet);
    return E_NOTIMPL;
}

#undef HTMLTXTRANGE_THIS

static const IHTMLTxtRangeVtbl HTMLTxtRangeVtbl = {
    HTMLTxtRange_QueryInterface,
    HTMLTxtRange_AddRef,
    HTMLTxtRange_Release,
    HTMLTxtRange_GetTypeInfoCount,
    HTMLTxtRange_GetTypeInfo,
    HTMLTxtRange_GetIDsOfNames,
    HTMLTxtRange_Invoke,
    HTMLTxtRange_get_htmlText,
    HTMLTxtRange_put_text,
    HTMLTxtRange_get_text,
    HTMLTxtRange_parentElement,
    HTMLTxtRange_duplicate,
    HTMLTxtRange_inRange,
    HTMLTxtRange_isEqual,
    HTMLTxtRange_scrollIntoView,
    HTMLTxtRange_collapse,
    HTMLTxtRange_expand,
    HTMLTxtRange_move,
    HTMLTxtRange_moveStart,
    HTMLTxtRange_moveEnd,
    HTMLTxtRange_select,
    HTMLTxtRange_pasteHTML,
    HTMLTxtRange_moveToElementText,
    HTMLTxtRange_setEndPoint,
    HTMLTxtRange_compareEndPoints,
    HTMLTxtRange_findText,
    HTMLTxtRange_moveToPoint,
    HTMLTxtRange_getBookmark,
    HTMLTxtRange_moveToBookmark,
    HTMLTxtRange_queryCommandSupported,
    HTMLTxtRange_queryCommandEnabled,
    HTMLTxtRange_queryCommandState,
    HTMLTxtRange_queryCommandIndeterm,
    HTMLTxtRange_queryCommandText,
    HTMLTxtRange_queryCommandValue,
    HTMLTxtRange_execCommand,
    HTMLTxtRange_execCommandShowHelp
};

1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780
#define OLECMDTRG_THIS(iface) DEFINE_THIS(HTMLTxtRange, OleCommandTarget, iface)

static HRESULT WINAPI RangeCommandTarget_QueryInterface(IOleCommandTarget *iface, REFIID riid, void **ppv)
{
    HTMLTxtRange *This = OLECMDTRG_THIS(iface);
    return IHTMLTxtRange_QueryInterface(HTMLTXTRANGE(This), riid, ppv);
}

static ULONG WINAPI RangeCommandTarget_AddRef(IOleCommandTarget *iface)
{
    HTMLTxtRange *This = OLECMDTRG_THIS(iface);
    return IHTMLTxtRange_AddRef(HTMLTXTRANGE(This));
}

static ULONG WINAPI RangeCommandTarget_Release(IOleCommandTarget *iface)
{
    HTMLTxtRange *This = OLECMDTRG_THIS(iface);
    return IHTMLTxtRange_Release(HTMLTXTRANGE(This));
}

static HRESULT WINAPI RangeCommandTarget_QueryStatus(IOleCommandTarget *iface, const GUID *pguidCmdGroup,
        ULONG cCmds, OLECMD prgCmds[], OLECMDTEXT *pCmdText)
{
    HTMLTxtRange *This = OLECMDTRG_THIS(iface);
    FIXME("(%p)->(%s %d %p %p)\n", This, debugstr_guid(pguidCmdGroup), cCmds, prgCmds, pCmdText);
    return E_NOTIMPL;
}

1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792
static HRESULT exec_indent(HTMLTxtRange *This, VARIANT *in, VARIANT *out)
{
    nsIDOMDocumentFragment *fragment;
    nsIDOMElement *blockquote_elem, *p_elem;
    nsIDOMNode *tmp;
    nsAString tag_str;

    static const PRUnichar blockquoteW[] = {'B','L','O','C','K','Q','U','O','T','E',0};
    static const PRUnichar pW[] = {'P',0};

    TRACE("(%p)->(%p %p)\n", This, in, out);

1793 1794 1795 1796
    if(!This->doc->nsdoc) {
        WARN("NULL nsdoc\n");
        return E_NOTIMPL;
    }
1797 1798

    nsAString_Init(&tag_str, blockquoteW);
1799
    nsIDOMHTMLDocument_CreateElement(This->doc->nsdoc, &tag_str, &blockquote_elem);
1800 1801 1802
    nsAString_Finish(&tag_str);

    nsAString_Init(&tag_str, pW);
1803
    nsIDOMDocument_CreateElement(This->doc->nsdoc, &tag_str, &p_elem);
1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820
    nsAString_Finish(&tag_str);

    nsIDOMRange_ExtractContents(This->nsrange, &fragment);
    nsIDOMElement_AppendChild(p_elem, (nsIDOMNode*)fragment, &tmp);
    nsIDOMDocumentFragment_Release(fragment);
    nsIDOMNode_Release(tmp);

    nsIDOMElement_AppendChild(blockquote_elem, (nsIDOMNode*)p_elem, &tmp);
    nsIDOMElement_Release(p_elem);
    nsIDOMNode_Release(tmp);

    nsIDOMRange_InsertNode(This->nsrange, (nsIDOMNode*)blockquote_elem);
    nsIDOMElement_Release(blockquote_elem);

    return S_OK;
}

1821 1822 1823 1824
static HRESULT WINAPI RangeCommandTarget_Exec(IOleCommandTarget *iface, const GUID *pguidCmdGroup,
        DWORD nCmdID, DWORD nCmdexecopt, VARIANT *pvaIn, VARIANT *pvaOut)
{
    HTMLTxtRange *This = OLECMDTRG_THIS(iface);
1825

1826 1827 1828 1829
    TRACE("(%p)->(%s %d %x %p %p)\n", This, debugstr_guid(pguidCmdGroup), nCmdID,
          nCmdexecopt, pvaIn, pvaOut);

    if(pguidCmdGroup && IsEqualGUID(&CGID_MSHTML, pguidCmdGroup)) {
1830 1831 1832 1833 1834 1835
        switch(nCmdID) {
        case IDM_INDENT:
            return exec_indent(This, pvaIn, pvaOut);
        default:
            FIXME("Unsupported cmdid %d of CGID_MSHTML\n", nCmdID);
        }
1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852
    }else {
        FIXME("Unsupported cmd %d of group %s\n", nCmdID, debugstr_guid(pguidCmdGroup));
    }

    return E_NOTIMPL;
}

#undef OLECMDTRG_THIS

static const IOleCommandTargetVtbl OleCommandTargetVtbl = {
    RangeCommandTarget_QueryInterface,
    RangeCommandTarget_AddRef,
    RangeCommandTarget_Release,
    RangeCommandTarget_QueryStatus,
    RangeCommandTarget_Exec
};

1853
IHTMLTxtRange *HTMLTxtRange_Create(HTMLDocument *doc, nsIDOMRange *nsrange)
1854
{
1855
    HTMLTxtRange *ret = heap_alloc(sizeof(HTMLTxtRange));
1856 1857

    ret->lpHTMLTxtRangeVtbl = &HTMLTxtRangeVtbl;
1858
    ret->lpOleCommandTargetVtbl = &OleCommandTargetVtbl;
1859 1860
    ret->ref = 1;

1861 1862 1863
    if(nsrange)
        nsIDOMRange_AddRef(nsrange);
    ret->nsrange = nsrange;
1864

1865 1866 1867
    ret->doc = doc;
    list_add_head(&doc->range_list, &ret->entry);

1868 1869
    return HTMLTXTRANGE(ret);
}
1870 1871 1872 1873 1874 1875 1876 1877 1878

void detach_ranges(HTMLDocument *This)
{
    HTMLTxtRange *iter;

    LIST_FOR_EACH_ENTRY(iter, &This->range_list, HTMLTxtRange, entry) {
        iter->doc = NULL;
    }
}