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      1 /*
      2  * Copyright (C) 2010 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "WebPageGroup.h"
     28 
     29 #include "WebPageProxy.h"
     30 #include "WebPreferences.h"
     31 #include <wtf/HashMap.h>
     32 #include <wtf/text/StringConcatenate.h>
     33 
     34 namespace WebKit {
     35 
     36 static uint64_t generatePageGroupID()
     37 {
     38     static uint64_t uniquePageGroupID = 1;
     39     return uniquePageGroupID++;
     40 }
     41 
     42 typedef HashMap<uint64_t, WebPageGroup*> WebPageGroupMap;
     43 
     44 static WebPageGroupMap& webPageGroupMap()
     45 {
     46     DEFINE_STATIC_LOCAL(WebPageGroupMap, map, ());
     47     return map;
     48 }
     49 
     50 PassRefPtr<WebPageGroup> WebPageGroup::create(const String& identifier, bool visibleToInjectedBundle, bool visibleToHistoryClient)
     51 {
     52     RefPtr<WebPageGroup> pageGroup = adoptRef(new WebPageGroup(identifier, visibleToInjectedBundle, visibleToHistoryClient));
     53 
     54     webPageGroupMap().set(pageGroup->pageGroupID(), pageGroup.get());
     55 
     56     return pageGroup.release();
     57 }
     58 
     59 WebPageGroup* WebPageGroup::get(uint64_t pageGroupID)
     60 {
     61     return webPageGroupMap().get(pageGroupID);
     62 }
     63 
     64 WebPageGroup::WebPageGroup(const String& identifier, bool visibleToInjectedBundle, bool visibleToHistoryClient)
     65 {
     66     m_data.pageGroupID = generatePageGroupID();
     67 
     68     if (!identifier.isNull())
     69         m_data.identifer = identifier;
     70     else
     71         m_data.identifer = m_data.identifer = makeString("__uniquePageGroupID-", String::number(m_data.pageGroupID));
     72 
     73     m_data.visibleToInjectedBundle = visibleToInjectedBundle;
     74     m_data.visibleToHistoryClient = visibleToHistoryClient;
     75 }
     76 
     77 WebPageGroup::~WebPageGroup()
     78 {
     79     if (m_preferences)
     80         m_preferences->removePageGroup(this);
     81     webPageGroupMap().remove(pageGroupID());
     82 }
     83 
     84 void WebPageGroup::addPage(WebPageProxy* page)
     85 {
     86     m_pages.add(page);
     87 }
     88 
     89 void WebPageGroup::removePage(WebPageProxy* page)
     90 {
     91     m_pages.remove(page);
     92 }
     93 
     94 void WebPageGroup::setPreferences(WebPreferences* preferences)
     95 {
     96     if (preferences == m_preferences)
     97         return;
     98 
     99     if (!m_preferences) {
    100         m_preferences = preferences;
    101         m_preferences->addPageGroup(this);
    102     } else {
    103         m_preferences->removePageGroup(this);
    104         m_preferences = preferences;
    105         m_preferences->addPageGroup(this);
    106 
    107         preferencesDidChange();
    108     }
    109 }
    110 
    111 WebPreferences* WebPageGroup::preferences() const
    112 {
    113     if (!m_preferences) {
    114         if (!m_data.identifer.isNull())
    115             m_preferences = WebPreferences::create(m_data.identifer);
    116         else
    117             m_preferences = WebPreferences::create();
    118         m_preferences->addPageGroup(const_cast<WebPageGroup*>(this));
    119     }
    120     return m_preferences.get();
    121 }
    122 
    123 void WebPageGroup::preferencesDidChange()
    124 {
    125     for (HashSet<WebPageProxy*>::iterator it = m_pages.begin(), end = m_pages.end(); it != end; ++it) {
    126         WebPageProxy* page = *it;
    127         page->preferencesDidChange();
    128     }
    129 }
    130 
    131 } // namespace WebKit
    132