From 573d612de46b665081f7ea01ccf21b1d6243bc69 Mon Sep 17 00:00:00 2001
From: Jacek Caban <jacek@codeweavers.com>
Date: Thu, 10 May 2007 00:32:48 +0200
Subject: [PATCH] mshtml: Reimplement IHTMTxtRange on top of nsIDOMRange.

---
 dlls/mshtml/mshtml_private.h |  2 +-
 dlls/mshtml/selection.c      | 16 ++++++++++++++-
 dlls/mshtml/txtrange.c       | 48 ++++++++++++++++++++++++++------------------
 3 files changed, 45 insertions(+), 21 deletions(-)

diff --git a/dlls/mshtml/mshtml_private.h b/dlls/mshtml/mshtml_private.h
index 6d8e1546bfc..432df7e25d6 100644
--- a/dlls/mshtml/mshtml_private.h
+++ b/dlls/mshtml/mshtml_private.h
@@ -351,7 +351,7 @@ void set_document_bscallback(HTMLDocument*,BSCallback*);
 
 IHlink *Hlink_Create(void);
 IHTMLSelectionObject *HTMLSelectionObject_Create(nsISelection*);
-IHTMLTxtRange *HTMLTxtRange_Create(nsISelection*);
+IHTMLTxtRange *HTMLTxtRange_Create(nsIDOMRange*);
 IHTMLStyle *HTMLStyle_Create(nsIDOMCSSStyleDeclaration*);
 IHTMLStyleSheet *HTMLStyleSheet_Create(void);
 
diff --git a/dlls/mshtml/selection.c b/dlls/mshtml/selection.c
index f5cc5aa381f..79683f04477 100644
--- a/dlls/mshtml/selection.c
+++ b/dlls/mshtml/selection.c
@@ -139,10 +139,24 @@ static HRESULT WINAPI HTMLSelectionObject_Invoke(IHTMLSelectionObject *iface, DI
 static HRESULT WINAPI HTMLSelectionObject_createRange(IHTMLSelectionObject *iface, IDispatch **range)
 {
     HTMLSelectionObject *This = HTMLSELOBJ_THIS(iface);
+    nsIDOMRange *nsrange = NULL;
 
     TRACE("(%p)->(%p)\n", This, range);
 
-    *range = (IDispatch*)HTMLTxtRange_Create(This->nsselection);
+    if(This->nsselection) {
+        PRInt32 nsrange_cnt = 0;
+        nsresult nsres;
+
+        nsISelection_GetRangeCount(This->nsselection, &nsrange_cnt);
+        if(nsrange_cnt != 1)
+            FIXME("range_cnt = %d\n", nsrange_cnt);
+
+        nsres = nsISelection_GetRangeAt(This->nsselection, 0, &nsrange);
+        if(NS_FAILED(nsres))
+            ERR("GetRangeAt failed: %08x\n", nsres);
+    }
+
+    *range = (IDispatch*)HTMLTxtRange_Create(nsrange);
     return S_OK;
 }
 
diff --git a/dlls/mshtml/txtrange.c b/dlls/mshtml/txtrange.c
index eb83fd07ed1..70fb1f972b9 100644
--- a/dlls/mshtml/txtrange.c
+++ b/dlls/mshtml/txtrange.c
@@ -41,7 +41,7 @@ typedef struct {
 
     LONG ref;
 
-    nsISelection *nsselection;
+    nsIDOMRange *nsrange;
 } HTMLTxtRange;
 
 #define HTMLTXTRANGE(x)  ((IHTMLTxtRange*)  &(x)->lpHTMLTxtRangeVtbl)
@@ -92,8 +92,8 @@ static ULONG WINAPI HTMLTxtRange_Release(IHTMLTxtRange *iface)
     TRACE("(%p) ref=%d\n", This, ref);
 
     if(!ref) {
-        if(This->nsselection)
-            nsISelection_Release(This->nsselection);
+        if(This->nsrange)
+            nsISelection_Release(This->nsrange);
         mshtml_free(This);
     }
 
@@ -152,25 +152,35 @@ static HRESULT WINAPI HTMLTxtRange_put_text(IHTMLTxtRange *iface, BSTR v)
 static HRESULT WINAPI HTMLTxtRange_get_text(IHTMLTxtRange *iface, BSTR *p)
 {
     HTMLTxtRange *This = HTMLTXTRANGE_THIS(iface);
-    PRUnichar *nstext = NULL;
-    nsresult nsres;
 
     TRACE("(%p)->(%p)\n", This, p);
 
-    if(!This->nsselection) {
-        static const WCHAR empty[] = {0};
-        *p = SysAllocString(empty);
-        return S_OK;
+    *p = NULL;
+
+    if(This->nsrange) {
+        nsAString text_str;
+        nsresult nsres;
+
+        nsAString_Init(&text_str, NULL);
+
+        nsres = nsIDOMRange_ToString(This->nsrange, &text_str);
+        if(NS_SUCCEEDED(nsres)) {
+            const PRUnichar *nstext;
+
+            nsAString_GetData(&text_str, &nstext, NULL);
+            *p = SysAllocString(nstext);
+        }else {
+            ERR("ToString failed: %08x\n", nsres);
+        }
+
+        nsAString_Finish(&text_str);
     }
 
-    nsres = nsISelection_ToString(This->nsselection, &nstext);
-    if(NS_FAILED(nsres) || !nstext) {
-        ERR("toString failed: %08x\n", nsres);
-        return E_FAIL;
+    if(!*p) {
+        static const WCHAR empty[] = {0};
+        *p = SysAllocString(empty);
     }
 
-    *p = SysAllocString(nstext);
-    nsfree(nstext);
     return S_OK;
 }
 
@@ -422,16 +432,16 @@ static const IHTMLTxtRangeVtbl HTMLTxtRangeVtbl = {
     HTMLTxtRange_execCommandShowHelp
 };
 
-IHTMLTxtRange *HTMLTxtRange_Create(nsISelection *nsselection)
+IHTMLTxtRange *HTMLTxtRange_Create(nsIDOMRange *nsrange)
 {
     HTMLTxtRange *ret = mshtml_alloc(sizeof(HTMLTxtRange));
 
     ret->lpHTMLTxtRangeVtbl = &HTMLTxtRangeVtbl;
     ret->ref = 1;
 
-    if(nsselection)
-        nsISelection_AddRef(nsselection);
-    ret->nsselection = nsselection;
+    if(nsrange)
+        nsIDOMRange_AddRef(nsrange);
+    ret->nsrange = nsrange;
 
     return HTMLTXTRANGE(ret);
 }
-- 
2.11.4.GIT