pjs/chimera/nsCocoaBrowserService.mm

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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#include "nsCocoaBrowserService.h"

#include "nsIWindowWatcher.h"
#include "nsIWebBrowserChrome.h"
#include "nsIEmbeddingSiteWindow.h"
#include "nsIProfile.h"
#include "nsIPrefService.h"
#include "CHBrowserView.h"
#include "nsCRT.h"
#include "nsString.h"

nsAlertController* nsCocoaBrowserService::sController = nsnull;
nsCocoaBrowserService* nsCocoaBrowserService::sSingleton = nsnull;
PRUint32 nsCocoaBrowserService::sNumBrowsers = 0;
PRBool nsCocoaBrowserService::sCanTerminate = PR_FALSE;

// nsCocoaBrowserService implementation
nsCocoaBrowserService::nsCocoaBrowserService()
{
  NS_INIT_ISUPPORTS();
}

nsCocoaBrowserService::~nsCocoaBrowserService()
{
}

NS_IMPL_ISUPPORTS3(nsCocoaBrowserService,
                   nsIWindowCreator,
                   nsIPromptService,
                   nsIFactory)

nsresult
nsCocoaBrowserService::InitEmbedding()
{
  sNumBrowsers++;
  
  if (sSingleton)
    return NS_OK;

  sSingleton = new nsCocoaBrowserService();
  if (!sSingleton) {
    return NS_ERROR_OUT_OF_MEMORY;
  }
  NS_ADDREF(sSingleton);
  
  // Register as the prompt service
#define NS_PROMPTSERVICE_CID \
     {0xa2112d6a, 0x0e28, 0x421f, {0xb4, 0x6a, 0x25, 0xc0, 0xb3, 0x8, 0xcb, 0xd0}}
  static NS_DEFINE_CID(kPromptServiceCID, NS_PROMPTSERVICE_CID);

  nsresult rv = nsComponentManager::RegisterFactory(kPromptServiceCID,
                                                    "Prompt Service",
                                                    "@mozilla.org/embedcomp/prompt-service;1",
                                           sSingleton,
                                           PR_TRUE); // replace existing
  if (NS_FAILED(rv)) {
    return rv;
  }

  // Register as the window creator
  nsCOMPtr<nsIWindowWatcher> watcher(do_GetService("@mozilla.org/embedcomp/window-watcher;1"));
  if (!watcher) {
    return NS_ERROR_FAILURE;
  }

  watcher->SetWindowCreator(sSingleton);

  return NS_OK;
}

void
nsCocoaBrowserService::BrowserClosed()
{
    sNumBrowsers--;
    if (sCanTerminate && sNumBrowsers == 0) {
        // The app is terminating *and* our count dropped to 0.
        NS_IF_RELEASE(sSingleton);
        NS_TermEmbedding();
        printf("Shutting down embedding!\n");
    }
}

void
nsCocoaBrowserService::TermEmbedding()
{
    sCanTerminate = PR_TRUE;
    if (sNumBrowsers == 0) {
        NS_IF_RELEASE(sSingleton);
        NS_TermEmbedding();
        printf("Shutting down embedding.\n");
    }
    else
        printf("Cannot yet shut down embedding.\n");
        // Otherwise we cannot yet terminate.  We have to let the death of the browser windows
        // induce termination.
}

#define NS_ALERT_NIB_NAME "alert"

nsAlertController* 
nsCocoaBrowserService::GetAlertController()
{
  if (!sController) {
    NSBundle* bundle = [NSBundle bundleForClass:[CHBrowserView class]];
    [bundle loadNibFile:@NS_ALERT_NIB_NAME externalNameTable:nsnull withZone:[NSApp zone]];
  }
  return sController;
}

void
nsCocoaBrowserService::SetAlertController(nsAlertController* aController)
{
  // XXX When should the controller be released?
  sController = aController;
  [sController retain];
}

// nsIFactory implementation
NS_IMETHODIMP 
nsCocoaBrowserService::CreateInstance(nsISupports *aOuter, 
                                      const nsIID & aIID, 
                                      void **aResult)
{
  NS_ENSURE_ARG_POINTER(aResult);

  return sSingleton->QueryInterface(aIID, aResult);
}

NS_IMETHODIMP 
nsCocoaBrowserService::LockFactory(PRBool lock)
{
  return NS_OK;
}

// nsIPromptService implementation
static NSWindow*
GetNSWindowForDOMWindow(nsIDOMWindow* window)
{
  nsCOMPtr<nsIWindowWatcher> watcher(do_GetService("@mozilla.org/embedcomp/window-watcher;1"));
  if (!watcher) {
    return nsnull;
  }
  
  nsCOMPtr<nsIWebBrowserChrome> chrome;
  watcher->GetChromeForWindow(window, getter_AddRefs(chrome));
  if (!chrome) {
    return nsnull;
  }

  nsCOMPtr<nsIEmbeddingSiteWindow> siteWindow(do_QueryInterface(chrome));
  if (!siteWindow) {
    return nsnull;
  }

  NSWindow* nswin;
  siteWindow->GetSiteWindow((void**)&nswin);

  return nswin;
}

// Implementation of nsIPromptService
NS_IMETHODIMP 
nsCocoaBrowserService::Alert(nsIDOMWindow *parent, 
                             const PRUnichar *dialogTitle, 
                             const PRUnichar *text)
{
  nsAlertController* controller = GetAlertController();
  if (!controller) {
    return NS_ERROR_FAILURE;
  }

  NSString* titleStr = [NSString stringWithCharacters:dialogTitle length:(dialogTitle ? nsCRT::strlen(dialogTitle) : 0)];
  NSString* textStr = [NSString stringWithCharacters:text length:(text ? nsCRT::strlen(text) : 0)];
  NSWindow* window = GetNSWindowForDOMWindow(parent);

  [controller alert:window title:titleStr text:textStr];

  return NS_OK;
}

/* void alertCheck (in nsIDOMWindow parent, in wstring dialogTitle, in wstring text, in wstring checkMsg, inout boolean checkValue); */
NS_IMETHODIMP 
nsCocoaBrowserService::AlertCheck(nsIDOMWindow *parent, 
                                  const PRUnichar *dialogTitle, 
                                  const PRUnichar *text, 
                                  const PRUnichar *checkMsg, 
                                  PRBool *checkValue)
{
  nsAlertController* controller = GetAlertController();
  if (!controller) {
    return NS_ERROR_FAILURE;
  }
 
  NSString* titleStr = [NSString stringWithCharacters:dialogTitle length:(dialogTitle ? nsCRT::strlen(dialogTitle) : 0)];
  NSString* textStr = [NSString stringWithCharacters:text length:(text ? nsCRT::strlen(text) : 0)];
  NSString* msgStr = [NSString stringWithCharacters:checkMsg length:(checkMsg ? nsCRT::strlen(checkMsg) : 0)];
  NSWindow* window = GetNSWindowForDOMWindow(parent);

  if (checkValue) {
    BOOL valueBool = *checkValue ? YES : NO;
    
    [controller alertCheck:window title:titleStr text:textStr checkMsg:msgStr checkValue:&valueBool];
    
    *checkValue = (valueBool == YES) ? PR_TRUE : PR_FALSE;
  }
  else {
    [controller alert:window title:titleStr text:textStr];    
  }
  
  return NS_OK;
}

/* boolean confirm (in nsIDOMWindow parent, in wstring dialogTitle, in wstring text); */
NS_IMETHODIMP 
nsCocoaBrowserService::Confirm(nsIDOMWindow *parent, 
                               const PRUnichar *dialogTitle, 
                               const PRUnichar *text, 
                               PRBool *_retval)
{
  nsAlertController* controller = GetAlertController();
  if (!controller) {
    return NS_ERROR_FAILURE;
  }

  NSString* titleStr = [NSString stringWithCharacters:dialogTitle length:(dialogTitle ? nsCRT::strlen(dialogTitle) : 0)];
  NSString* textStr = [NSString stringWithCharacters:text length:(text ? nsCRT::strlen(text) : 0)];
  NSWindow* window = GetNSWindowForDOMWindow(parent);

  *_retval = (PRBool)[controller confirm:window title:titleStr text:textStr];
  
  return NS_OK;
}

/* boolean confirmCheck (in nsIDOMWindow parent, in wstring dialogTitle, in wstring text, in wstring checkMsg, inout boolean checkValue); */
NS_IMETHODIMP 
nsCocoaBrowserService::ConfirmCheck(nsIDOMWindow *parent, 
                                    const PRUnichar *dialogTitle, 
                                    const PRUnichar *text, 
                                    const PRUnichar *checkMsg, 
                                    PRBool *checkValue, PRBool *_retval)
{
  nsAlertController* controller = GetAlertController();
  if (!controller) {
    return NS_ERROR_FAILURE;
  }

  NSString* titleStr = [NSString stringWithCharacters:dialogTitle length:(dialogTitle ? nsCRT::strlen(dialogTitle) : 0)];
  NSString* textStr = [NSString stringWithCharacters:text length:(text ? nsCRT::strlen(text) : 0)];
  NSString* msgStr = [NSString stringWithCharacters:checkMsg length:(checkMsg ? nsCRT::strlen(checkMsg) : 0)];
  NSWindow* window = GetNSWindowForDOMWindow(parent);

  if (checkValue) {
    BOOL valueBool = *checkValue ? YES : NO;
    
    *_retval = (PRBool)[controller confirmCheck:window title:titleStr text:textStr checkMsg:msgStr checkValue:&valueBool];
    
    *checkValue = (valueBool == YES) ? PR_TRUE : PR_FALSE;
  }
  else {
    *_retval = (PRBool)[controller confirm:window title:titleStr text:textStr];
  }
  
  return NS_OK;
}

/* void confirmEx (in nsIDOMWindow parent, in wstring dialogTitle, in wstring text, in unsigned long buttonFlags, in wstring button0Title, in wstring button1Title, in wstring button2Title, in wstring checkMsg, inout boolean checkValue, out PRInt32 buttonPressed); */
NS_IMETHODIMP 
nsCocoaBrowserService::ConfirmEx(nsIDOMWindow *parent, 
                                 const PRUnichar *dialogTitle, 
                                 const PRUnichar *text, 
                                 PRUint32 buttonFlags, 
                                 const PRUnichar *button0Title, 
                                 const PRUnichar *button1Title, 
                                 const PRUnichar *button2Title, 
                                 const PRUnichar *checkMsg, 
                                 PRBool *checkValue, PRInt32 *buttonPressed)
{
  nsAlertController* controller = GetAlertController();
  if (!controller) {
    return NS_ERROR_FAILURE;
  }

  NSString* titleStr = [NSString stringWithCharacters:dialogTitle length:(dialogTitle ? nsCRT::strlen(dialogTitle) : 0)];
  NSString* textStr = [NSString stringWithCharacters:text length:(text ? nsCRT::strlen(text) : 0)];
  NSString* msgStr = [NSString stringWithCharacters:checkMsg length:(checkMsg ? nsCRT::strlen(checkMsg) : 0)];
  NSWindow* window = GetNSWindowForDOMWindow(parent);

  NSString* btn1Str = [NSString stringWithCharacters:button0Title length:(button0Title ? nsCRT::strlen(button0Title) : 0)];
  NSString* btn2Str = [NSString stringWithCharacters:button1Title length:(button1Title ? nsCRT::strlen(button1Title) : 0)];
  NSString* btn3Str = [NSString stringWithCharacters:button2Title length:(button2Title ? nsCRT::strlen(button2Title) : 0)];
  
  if (checkValue) {
    BOOL valueBool = *checkValue ? YES : NO;
    
    *buttonPressed = (PRInt32)[controller confirmCheckEx:window title:titleStr text:textStr 
                               button1: btn1Str button2: btn2Str button3: btn3Str
                               checkMsg:msgStr checkValue:&valueBool];
    
    *checkValue = (valueBool == YES) ? PR_TRUE : PR_FALSE;
  }
  else {
    *buttonPressed = (PRInt32)[controller confirmEx:window title:titleStr text:textStr
                               button1: btn1Str button2: btn2Str button3: btn3Str];
  }
  
  printf("Uh-oh! Not posing the confirm yet, but just assuming OK was pressed.\n");
  
  return NS_OK;

}

/* boolean prompt (in nsIDOMWindow parent, in wstring dialogTitle, in wstring text, inout wstring value, in wstring checkMsg, inout boolean checkValue); */
NS_IMETHODIMP 
nsCocoaBrowserService::Prompt(nsIDOMWindow *parent, 
                              const PRUnichar *dialogTitle, 
                              const PRUnichar *text, 
                              PRUnichar **value, 
                              const PRUnichar *checkMsg, 
                              PRBool *checkValue, 
                              PRBool *_retval)
{
  nsAlertController* controller = GetAlertController();
  if (!controller) {
    return NS_ERROR_FAILURE;
  }

  NSString* titleStr = [NSString stringWithCharacters:dialogTitle length:(dialogTitle ? nsCRT::strlen(dialogTitle) : 0)];
  NSString* textStr = [NSString stringWithCharacters:text length:(text ? nsCRT::strlen(text) : 0)];
  NSString* msgStr = [NSString stringWithCharacters:checkMsg length:(checkMsg ? nsCRT::strlen(checkMsg) : 0)];
  NSMutableString* valueStr = [NSMutableString stringWithCharacters:*value length:(*value ? nsCRT::strlen(*value) : 0)];
    
  BOOL valueBool;
  if (checkValue) {
    valueBool = *checkValue ? YES : NO;
  }
  NSWindow* window = GetNSWindowForDOMWindow(parent);

  *_retval = (PRBool)[controller prompt:window title:titleStr text:textStr promptText:valueStr checkMsg:msgStr checkValue:&valueBool doCheck:(checkValue != nsnull)];

  if (checkValue) {
    *checkValue = (valueBool == YES) ? PR_TRUE : PR_FALSE;
  }
  PRUint32 length = [valueStr length];
  PRUnichar* retStr = (PRUnichar*)nsMemory::Alloc((length + 1) * sizeof(PRUnichar));
  [valueStr getCharacters:retStr];
  retStr[length] = PRUnichar(0);
  *value = retStr;

  return NS_OK;
}

/* boolean promptUsernameAndPassword (in nsIDOMWindow parent, in wstring dialogTitle, in wstring text, inout wstring username, inout wstring password, in wstring checkMsg, inout boolean checkValue); */
NS_IMETHODIMP 
nsCocoaBrowserService::PromptUsernameAndPassword(nsIDOMWindow *parent, 
                                                 const PRUnichar *dialogTitle, 
                                                 const PRUnichar *text, 
                                                 PRUnichar **username, 
                                                 PRUnichar **password, 
                                                 const PRUnichar *checkMsg, 
                                                 PRBool *checkValue, 
                                                 PRBool *_retval)
{
  nsAlertController* controller = GetAlertController();
  if (!controller) {
    return NS_ERROR_FAILURE;
  }

  NSString* titleStr = [NSString stringWithCharacters:dialogTitle length:(dialogTitle ? nsCRT::strlen(dialogTitle) : 0)];
  NSString* textStr = [NSString stringWithCharacters:text length:(text ? nsCRT::strlen(text) : 0)];
  NSString* msgStr = [NSString stringWithCharacters:checkMsg length:(checkMsg ? nsCRT::strlen(checkMsg) : 0)];
  NSMutableString* userNameStr = [NSMutableString stringWithCharacters:*username length:(*username ? nsCRT::strlen(*username) : 0)];
  NSMutableString* passwordStr = [NSMutableString stringWithCharacters:*password length:(*password ? nsCRT::strlen(*password) : 0)];
    
  BOOL valueBool;
  if (checkValue) {
    valueBool = *checkValue ? YES : NO;
  }
  NSWindow* window = GetNSWindowForDOMWindow(parent);

  *_retval = (PRBool)[controller promptUserNameAndPassword:window title:titleStr text:textStr userNameText:userNameStr passwordText:passwordStr checkMsg:msgStr checkValue:&valueBool doCheck:(checkValue != nsnull)];
  
  if (checkValue) {
    *checkValue = (valueBool == YES) ? PR_TRUE : PR_FALSE;
  }

  PRUint32 length = [userNameStr length];
  PRUnichar* retStr = (PRUnichar*)nsMemory::Alloc((length + 1) * sizeof(PRUnichar));
  [userNameStr getCharacters:retStr];
  retStr[length] = PRUnichar(0);
  *username = retStr;

  length = [passwordStr length];
  retStr = (PRUnichar*)nsMemory::Alloc((length + 1) * sizeof(PRUnichar));
  [passwordStr getCharacters:retStr];
  retStr[length] = PRUnichar(0);
  *password = retStr;

  return NS_OK;
}

/* boolean promptPassword (in nsIDOMWindow parent, in wstring dialogTitle, in wstring text, inout wstring password, in wstring checkMsg, inout boolean checkValue); */
NS_IMETHODIMP 
nsCocoaBrowserService::PromptPassword(nsIDOMWindow *parent, 
                                      const PRUnichar *dialogTitle, 
                                      const PRUnichar *text, 
                                      PRUnichar **password, 
                                      const PRUnichar *checkMsg, 
                                      PRBool *checkValue, 
                                      PRBool *_retval)
{
  nsAlertController* controller = GetAlertController();
  if (!controller) {
    return NS_ERROR_FAILURE;
  }

  NSString* titleStr = [NSString stringWithCharacters:dialogTitle length:(dialogTitle ? nsCRT::strlen(dialogTitle) : 0)];
  NSString* textStr = [NSString stringWithCharacters:text length:(text ? nsCRT::strlen(text) : 0)];
  NSString* msgStr = [NSString stringWithCharacters:checkMsg length:(checkMsg ? nsCRT::strlen(checkMsg) : 0)];
  NSMutableString* passwordStr = [NSMutableString stringWithCharacters:*password length:(*password ? nsCRT::strlen(*password) : 0)];
    
  BOOL valueBool;
  if (checkValue) {
    valueBool = *checkValue ? YES : NO;
  }
  NSWindow* window = GetNSWindowForDOMWindow(parent);

  *_retval = (PRBool)[controller promptPassword:window title:titleStr text:textStr passwordText:passwordStr checkMsg:msgStr checkValue:&valueBool doCheck:(checkValue != nsnull)];

  if (checkValue) {
    *checkValue = (valueBool == YES) ? PR_TRUE : PR_FALSE;
  }

  PRUint32 length = [passwordStr length];
  PRUnichar* retStr = (PRUnichar*)nsMemory::Alloc((length + 1) * sizeof(PRUnichar));
  [passwordStr getCharacters:retStr];
  retStr[length] = PRUnichar(0);
  *password = retStr;

  return NS_OK;
}

/* boolean select (in nsIDOMWindow parent, in wstring dialogTitle, in wstring text, in PRUint32 count, [array, size_is (count)] in wstring selectList, out long outSelection); */
NS_IMETHODIMP 
nsCocoaBrowserService::Select(nsIDOMWindow *parent, 
                              const PRUnichar *dialogTitle, 
                              const PRUnichar *text, 
                              PRUint32 count, 
                              const PRUnichar **selectList, 
                              PRInt32 *outSelection, 
                              PRBool *_retval)
{
  printf("Uh-oh. Select has not been implemented.\n");
  return NS_ERROR_NOT_IMPLEMENTED;
}

// Implementation of nsIWindowCreator
/* nsIWebBrowserChrome createChromeWindow (in nsIWebBrowserChrome parent, in PRUint32 chromeFlags); */
NS_IMETHODIMP 
nsCocoaBrowserService::CreateChromeWindow(nsIWebBrowserChrome *parent, 
                                          PRUint32 chromeFlags, 
                                          nsIWebBrowserChrome **_retval)
{
  if (!parent) {
    printf("Uh-oh. Attempt to create a new browser window with a null parent.  Should not happen in Chimera.\n");
    return NS_ERROR_FAILURE;
  }
    
  nsCOMPtr<nsIWindowCreator> browserChrome(do_QueryInterface(parent));
  return browserChrome->CreateChromeWindow(parent, chromeFlags, _retval);
}