RetroZilla/embedding/minimo/app/mozilla_api.cpp

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Christopher Blizzard. Portions created by Christopher Blizzard are Copyright (C) Christopher Blizzard.  All Rights Reserved.
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Christopher Blizzard <blizzard@mozilla.org>
 *   Doug Turner <dougt@meer.net>  Branched from TestGtkEmbed.cpp
 *
 *   The 10LE Team (in alphabetical order)
 *   -------------------------------------
 *
 *    Ilias Biris       <ext-ilias.biris@indt.org.br> - Coordinator
 *    Afonso Costa      <afonso.costa@indt.org.br>
 *    Antonio Gomes     <antonio.gomes@indt.org.br>
 *    Diego Gonzalez    <diego.gonzalez@indt.org.br>
 *    Raoni Novellino   <raoni.novellino@indt.org.br>
 *    Andre Pedralho    <andre.pedralho@indt.org.br>
 *
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "mozilla_api.h"

/*
 * mozilla_locale_to_unicode: Decodes a string encoded for the current
 * locale into unicode. Used for getting text entered in a GTK+ entry
 * into a form which mozilla can use.
 *
 */
PRUnichar *
mozilla_locale_to_unicode (const gchar *locStr)
{
  if (locStr == NULL)
  {
    return (NULL);
  }
  nsAutoString autoStr;
  autoStr.AssignWithConversion (locStr);       
  PRUnichar *uniStr = ToNewUnicode(autoStr);
  return ( uniStr );
}

/*
 * mozilla_find: Look for a text in the current shown webpage
 *
 */
gboolean 
mozilla_find(GtkMozEmbed *b, const char *exp, PRBool IgnoreCase,
             PRBool SearchBackWards, PRBool DoWrapFind,
             PRBool SearchEntireWord, PRBool SearchInFrames,
             PRBool DidFind)
{
  PRUnichar *search_string;
  g_return_val_if_fail(b != NULL, FALSE);
  nsIWebBrowser *wb = nsnull;
  gtk_moz_embed_get_nsIWebBrowser( b, &wb);
  nsCOMPtr<nsIWebBrowserFind> finder(do_GetInterface(wb));
  search_string = mozilla_locale_to_unicode(exp);
  finder->SetSearchString(search_string);
  
  finder->SetFindBackwards(SearchBackWards);
  finder->SetWrapFind(DoWrapFind);
  finder->SetEntireWord(SearchEntireWord);
  finder->SetSearchFrames(SearchInFrames);
  finder->SetMatchCase(IgnoreCase);
  finder->FindNext(&DidFind);
  
  g_free(search_string);
  return ( DidFind );
}

/*
 * mozilla_preference_set: Method used to set up some specific text-based parameters of the gecko render engine
 *
 */
gboolean
mozilla_preference_set (const char *preference_name, const char *new_value)
{
  g_return_val_if_fail (preference_name != NULL, FALSE);
  g_return_val_if_fail (new_value != NULL, FALSE);
  
  nsCOMPtr<nsIPref> pref = do_CreateInstance(PREF_ID);
  
  if (pref)
  {
    nsresult rv = pref->SetCharPref (preference_name, new_value);
    return ( NS_SUCCEEDED (rv) ? TRUE : FALSE );
  }
  return (FALSE);
}

/*
 * mozilla_preference_set: Method used to set up some specific boolean-based parameters of the gecko render engine
 *
 */
gboolean
mozilla_preference_set_boolean (const char *preference_name, gboolean new_boolean_value)
{
  
  g_return_val_if_fail (preference_name != NULL, FALSE);
  
  nsCOMPtr<nsIPref> pref = do_CreateInstance(PREF_ID);
  
  if (pref)
  {
    nsresult rv = pref->SetBoolPref (preference_name,  new_boolean_value ? PR_TRUE : PR_FALSE);
    return ( NS_SUCCEEDED (rv) ? TRUE : FALSE );
  }
  
  return (FALSE);
}	

/*
 * mozilla_preference_set: Method used to set up some specific integer-based parameters of the gecko render engine
 *
 */
gboolean
mozilla_preference_set_int (const char *preference_name, gint  new_int_value)
{
  g_return_val_if_fail (preference_name != NULL, FALSE);
  
  nsCOMPtr<nsIPref> pref = do_CreateInstance(PREF_ID);
  
  if (pref)
  {
    nsresult rv = pref->SetIntPref (preference_name, new_int_value);
    return ( NS_SUCCEEDED (rv) ? TRUE : FALSE );
  }
  
  return (FALSE);
  
}

/*
 * mozilla_save: Method used to save an webpage and its files into the disk
 *
 */
gboolean
mozilla_save(GtkMozEmbed *b, gchar *file_name, gint all)
{
  
  nsCOMPtr<nsIWebBrowser> wb;
  gint i = 0;
  gchar *relative_path = NULL;
  g_return_val_if_fail(b != NULL, FALSE);
  
  gtk_moz_embed_get_nsIWebBrowser(b,getter_AddRefs(wb));
  if (!wb) return (FALSE);
  
  nsCOMPtr<nsIWebNavigation> nav(do_QueryInterface(wb));
  
  nsCOMPtr<nsIDOMDocument> domDoc;
  nav->GetDocument(getter_AddRefs(domDoc));
  
  if (!domDoc) return (FALSE);
  nsCOMPtr<nsIWebBrowserPersist> persist(do_QueryInterface(wb));
  
  if (persist) {
    nsCOMPtr<nsILocalFile> file;
    nsCOMPtr<nsILocalFile> relative = nsnull;
    if (all) {
      
      relative_path = g_strdup(file_name);
      relative_path = g_strconcat(relative_path,"_files/", NULL);
      
      for (i=strlen(relative_path)-1 ; i >= 0; --i)
        if (relative_path[i] == '/')
        {
          relative_path[i] = '\0';
          break;
        }
      
      mkdir(relative_path,0755);
      
      nsAutoString s; s.AssignWithConversion(relative_path);
      NS_NewLocalFile(s, PR_TRUE, getter_AddRefs(relative));
    }
    
    nsAutoString s; s.AssignWithConversion(file_name);
    NS_NewLocalFile(s,PR_TRUE,getter_AddRefs(file));
    
    if (file) persist->SaveDocument(domDoc,file,relative, nsnull, 0, 0);
    
    if (all) g_free(relative_path);
    
    return (TRUE);
  }
  return (FALSE);
}

void 
mozilla_save_image(GtkMozEmbed *b,gchar *location, gchar *FullPath)
{
  nsresult rv = NS_OK;
  if (strlen(location) == 0 || !location) return;
  nsCOMPtr<nsIURI> linkURI;
  rv = NS_NewURI(getter_AddRefs(linkURI), location);
  if (NS_FAILED(rv)) return;
  nsIWebBrowser *wb = nsnull;
  gtk_moz_embed_get_nsIWebBrowser(b,&wb);
  nsCOMPtr<nsIWebBrowserPersist> persist(do_QueryInterface(wb));
  if (persist) {
    nsCOMPtr<nsILocalFile> file;
    nsAutoString s; s.AssignWithConversion(FullPath);
    NS_NewLocalFile(s, PR_TRUE, getter_AddRefs(file));
    if (!file) return;
    persist->SaveURI(linkURI, nsnull, nsnull, nsnull, nsnull, file);
  }
  return;
}

/*
 * mozilla_get_link_message: Method used to get "link messages" from the Gecko Render Engine. 
 * eg. When the user put the mouse over a link, the render engine throws messages that can be cautch for after 
 * used by Minimo Browser.
 *
 */

gchar *
mozilla_get_link_message (GtkWidget *embed) 
{  
  gchar *link;
  
  link = gtk_moz_embed_get_link_message (GTK_MOZ_EMBED (embed));
  return link;  
}

 
gboolean 
mozilla_save_prefs (void) 
{
  nsCOMPtr<nsIPrefService> prefService = do_GetService (PREF_ID);
  g_return_val_if_fail (prefService != nsnull, FALSE);
  nsresult rv = prefService->SavePrefFile (nsnull);
  return NS_SUCCEEDED (rv) ? TRUE : FALSE;
}

glong 
mozilla_get_context_menu_type(GtkMozEmbed *b, gpointer event,  gchar **img,  gchar **link, gchar **linktext)
{
  nsresult result;
  *img = *link = NULL;
  
  nsIDOMMouseEvent *aMouseEvent =  (nsIDOMMouseEvent*)event;
  
  nsCOMPtr<nsIDOMEventTarget> OriginalTarget;
  
  nsCOMPtr<nsIDOMNSEvent> aEvent = do_QueryInterface(aMouseEvent);
  if (!aEvent) return(CONTEXT_NONE);
  result = aEvent->GetOriginalTarget(getter_AddRefs(OriginalTarget));
  
  if (NS_FAILED(result) || !OriginalTarget) return (CONTEXT_NONE);
  
  nsCOMPtr<nsIDOMNode> OriginalNode = do_QueryInterface(OriginalTarget);
  if (!OriginalNode) return (CONTEXT_NONE);
  
  nsString nodename;
  OriginalNode->GetNodeName(nodename);
  
  if (nodename.EqualsLiteral ("xul:thumb") ||
      nodename.EqualsLiteral ("xul:slider"))
    return (CONTEXT_NONE);
  
  nsCOMPtr<nsIDOMEventTarget> EventTarget;
  result = aMouseEvent->GetTarget(getter_AddRefs(EventTarget));
  if (NS_FAILED(result) || !EventTarget) return (  CONTEXT_NONE );
  
  nsCOMPtr<nsIDOMNode> node = do_QueryInterface(EventTarget);
  if (!node) return (CONTEXT_NONE);
  
  nsCOMPtr<nsIDOMDocument> domDoc;
  result = node->GetOwnerDocument(getter_AddRefs(domDoc));
  if (!NS_SUCCEEDED (result) || !domDoc) return (CONTEXT_NONE);
  
  nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc);
  if(!doc) return (CONTEXT_NONE);
  
  nsCOMPtr<nsIDOMNSDocument> nsDoc = do_QueryInterface(domDoc);
  if (!nsDoc) return (CONTEXT_NONE);
  
  nsIURI *baseURI;
  
  baseURI = doc->GetBaseURI ();
  
  if (!baseURI) return (CONTEXT_NONE);
  
  nsString mime;
  nsDoc->GetContentType(mime);
  if (mime.EqualsLiteral("text/xul"))  return (CONTEXT_NONE);
  
  PRUint32 flags = CONTEXT_NONE;
  nsCOMPtr<nsIDOMHTMLElement> element;
  
  do {
    PRUint16 type;
    node->GetNodeType(&type);
    
    element = do_QueryInterface(node);
    if (element)
    {
      nsAutoString tag;
      element->GetTagName(tag);
      
      if (tag.EqualsIgnoreCase("input"))
      {
        flags |= CONTEXT_INPUT;
      }
      else if (tag.EqualsIgnoreCase("img")) //if (tag.EqualsWithConversion("img", PR_TRUE))
      {
        flags |= CONTEXT_IMAGE;
        
        char *src = mozilla_get_attribute (node, "src");
        if (!src)  return (  CONTEXT_NONE );
        
        nsAutoString srca;
        srca.AssignWithConversion(src);
        
        nsCString srcc,imgc;
        srcc.AssignWithConversion(srca);
        result = baseURI->Resolve(srcc, imgc);
        g_free(src);
        
        *img = ToNewCString(imgc);
        
        if (!img) return (CONTEXT_NONE);
		
      }
      
      else
      {
        flags |= CONTEXT_OTHER;
      }
      
      nsCOMPtr<nsIDOMNamedNodeMap> attributes;
      node->GetAttributes(getter_AddRefs(attributes));
      if (attributes)
      {
        nsCOMPtr<nsIDOMNode> hrefNode;
        nsAutoString href;
        href.AssignWithConversion("href");
        attributes->GetNamedItem(href, getter_AddRefs(hrefNode));
        if (hrefNode)
        {
          flags |= CONTEXT_LINK;
          nsAutoString linkhtml;
          nsCOMPtr<nsIDOMNSHTMLElement> nsElement;
			
          nsElement = do_QueryInterface (element);
          if (nsElement)
          {
            result = nsElement->GetInnerHTML(linkhtml);
            if (NS_SUCCEEDED(result) && ToNewCString(linkhtml))
              *linktext = g_strdup(ToNewCString(linkhtml));
          }
          
          char *href =  mozilla_get_attribute (node, "href");
          if (!href)   return (CONTEXT_NONE );
          
          nsAutoString hrefa;
          hrefa.AssignWithConversion(href);
          
          nsCString hrefc,linkc;
          hrefc.AssignWithConversion(hrefa);
          
          result = baseURI->Resolve(hrefc,linkc);
          g_free(href);
          
          *link = ToNewCString(linkc);
          
          if (!link)  return (CONTEXT_NONE);
          
          break;
        }
      }
    }
    nsCOMPtr<nsIDOMNode> parentNode;
    node->GetParentNode(getter_AddRefs(parentNode));
    
    if (!parentNode)
    {
      node = nsnull;
      flags |= CONTEXT_DOCUMENT;
      break;
    }
    node = parentNode;
  } while (node);
  
  return(flags);
}

gchar *
mozilla_get_attribute (nsIDOMNode *node, gchar *attribute)
{
  nsresult result;
  
  nsCOMPtr<nsIDOMNamedNodeMap> attributes;
  result = node->GetAttributes(getter_AddRefs (attributes));
  if (!NS_SUCCEEDED (result) || !attributes) return ( NULL );
  
  nsAutoString attr;
  
  attr.AssignWithConversion (attribute);
  
  nsCOMPtr<nsIDOMNode> attrNode;
  result = attributes->GetNamedItem (attr, getter_AddRefs (attrNode));
  if (!NS_SUCCEEDED (result) || !attrNode)  return (NULL);
  
  nsAutoString nodeValue;
  
  result = attrNode->GetNodeValue (nodeValue);
  if (!NS_SUCCEEDED (result))  return (NULL);
  
  char *cstr = ToNewCString(nodeValue);
  char *lifeSucks = g_strdup (cstr);
  
  nsMemory::Free (cstr);
  
  return (lifeSucks);
}