File:  [mozdev] / chimera / ContentClickListener.mm
Revision 1.8: download - view: text, annotated - select for diffs - revision graph
Sun Apr 14 00:08:17 2002 UTC (15 years, 6 months ago) by hyatt
Branches: MAIN
CVS tags: HEAD
Open link in new window/tab now works from the context menu.

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is 
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 * Portions created by the Initial Developer are Copyright (C) 2002
 * the Initial Developer. All Rights Reserved.
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 *
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 * either the GNU General Public License Version 2 or later (the "GPL"), or 
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#include "nsCOMPtr.h"
#include "ContentClickListener.h"
#include "nsIDOMEventTarget.h"
#include "nsIContent.h"
#include "nsIAtom.h"
#include "nsIDOMElement.h"
#include "nsString.h"
#include "nsUnicharUtils.h"
#include "nsIPrefBranch.h"
#include "nsIDOMMouseEvent.h"
#include "nsEmbedAPI.h"

// Common helper routines (also used by the context menu code)
#include "GeckoUtils.h"

NS_IMPL_ISUPPORTS2(ContentClickListener, nsIDOMMouseListener, nsIDOMEventListener);

ContentClickListener::ContentClickListener(id aBrowserController)
:mBrowserController(aBrowserController)
{
  NS_INIT_ISUPPORTS();
}

ContentClickListener::~ContentClickListener()
{

}

NS_IMETHODIMP
ContentClickListener::MouseClick(nsIDOMEvent* aEvent)
{
  nsCOMPtr<nsIDOMEventTarget> target;
  aEvent->GetTarget(getter_AddRefs(target));
  if (!target)
    return NS_OK;
  nsCOMPtr<nsIDOMNode> content(do_QueryInterface(target));

  nsCOMPtr<nsIDOMElement> linkContent;
  nsAutoString href;
  GeckoUtils::GetEnclosingLinkElementAndHref(content, getter_AddRefs(linkContent), href);
  
  // XXXdwh Handle simple XLINKs if we want to be compatible with Mozilla, but who
  // really uses these anyway? :)
  if (!linkContent || href.IsEmpty())
    return NS_OK;

  nsCOMPtr<nsIPrefBranch> pref(do_GetService("@mozilla.org/preferences-service;1"));
  if (!pref)
    return NS_OK; // Something bad happened if we can't get prefs.
    
  PRUint16 button;
  nsCOMPtr<nsIDOMMouseEvent> mouseEvent(do_QueryInterface(aEvent));
  mouseEvent->GetButton(&button);

  PRBool metaKey, shiftKey, altKey;
  mouseEvent->GetMetaKey(&metaKey);
  mouseEvent->GetShiftKey(&shiftKey);
  mouseEvent->GetAltKey(&altKey);
  if ((metaKey && button == 0) || button == 1) {
    // The command key is down or we got a middle click.  Open the link in a new window or tab.
    PRBool useTab;
    pref->GetBoolPref("browser.tabs.opentabfor.middleclick", &useTab);

    NSString* hrefStr = [NSString stringWithCharacters: href.get() length:nsCRT::strlen(href.get())];
    NSURL* urlToLoad = [NSURL URLWithString: hrefStr];

    PRBool loadInBackground;
    pref->GetBoolPref("browser.tabs.loadInBackground", &loadInBackground);
    if (shiftKey)
      loadInBackground = !loadInBackground;
    if (useTab)
      [mBrowserController openNewTabWithURL: urlToLoad loadInBackground: loadInBackground];
    else
      [mBrowserController openNewWindowWithURL: urlToLoad loadInBackground: loadInBackground];
  }
  else if (altKey) {
    // The user wants to save this link.
    nsAutoString text;
    GeckoUtils::GatherTextUnder(content, text);
  }

  return NS_OK;
}

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