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      1 /*
      2  * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
      3  * Copyright (C) 2008 Matt Lilek <webkit (at) mattlilek.com>
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *
      9  * 1.  Redistributions of source code must retain the above copyright
     10  *     notice, this list of conditions and the following disclaimer.
     11  * 2.  Redistributions in binary form must reproduce the above copyright
     12  *     notice, this list of conditions and the following disclaimer in the
     13  *     documentation and/or other materials provided with the distribution.
     14  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     15  *     its contributors may be used to endorse or promote products derived
     16  *     from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     19  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     21  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     22  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     25  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include "config.h"
     31 #include "core/inspector/InspectorFrontendHost.h"
     32 
     33 #include "bindings/core/v8/ScriptFunctionCall.h"
     34 #include "bindings/core/v8/ScriptState.h"
     35 #include "core/clipboard/Pasteboard.h"
     36 #include "core/dom/ExecutionContext.h"
     37 #include "core/events/Event.h"
     38 #include "core/events/EventTarget.h"
     39 #include "core/fetch/ResourceFetcher.h"
     40 #include "core/frame/LocalDOMWindow.h"
     41 #include "core/frame/LocalFrame.h"
     42 #include "core/html/parser/TextResourceDecoder.h"
     43 #include "core/inspector/InspectorController.h"
     44 #include "core/inspector/InspectorFrontendClient.h"
     45 #include "core/loader/FrameLoader.h"
     46 #include "core/page/ContextMenuController.h"
     47 #include "core/page/ContextMenuProvider.h"
     48 #include "core/page/Page.h"
     49 #include "core/rendering/RenderTheme.h"
     50 #include "platform/ContextMenu.h"
     51 #include "platform/ContextMenuItem.h"
     52 #include "platform/SharedBuffer.h"
     53 #include "platform/UserGestureIndicator.h"
     54 #include "platform/network/ResourceError.h"
     55 #include "platform/network/ResourceRequest.h"
     56 #include "platform/network/ResourceResponse.h"
     57 
     58 namespace blink {
     59 
     60 class FrontendMenuProvider FINAL : public ContextMenuProvider {
     61 public:
     62     static PassRefPtr<FrontendMenuProvider> create(InspectorFrontendHost* frontendHost, ScriptValue frontendApiObject, const Vector<ContextMenuItem>& items)
     63     {
     64         return adoptRef(new FrontendMenuProvider(frontendHost, frontendApiObject, items));
     65     }
     66 
     67     void disconnect()
     68     {
     69         m_frontendApiObject = ScriptValue();
     70         m_frontendHost = 0;
     71     }
     72 
     73 private:
     74     FrontendMenuProvider(InspectorFrontendHost* frontendHost, ScriptValue frontendApiObject, const Vector<ContextMenuItem>& items)
     75         : m_frontendHost(frontendHost)
     76         , m_frontendApiObject(frontendApiObject)
     77         , m_items(items)
     78     {
     79     }
     80 
     81     virtual ~FrontendMenuProvider()
     82     {
     83         contextMenuCleared();
     84     }
     85 
     86     virtual void populateContextMenu(ContextMenu* menu) OVERRIDE
     87     {
     88         for (size_t i = 0; i < m_items.size(); ++i)
     89             menu->appendItem(m_items[i]);
     90     }
     91 
     92     virtual void contextMenuItemSelected(const ContextMenuItem* item) OVERRIDE
     93     {
     94         if (m_frontendHost) {
     95             UserGestureIndicator gestureIndicator(DefinitelyProcessingNewUserGesture);
     96             int itemNumber = item->action() - ContextMenuItemBaseCustomTag;
     97 
     98             ScriptFunctionCall function(m_frontendApiObject, "contextMenuItemSelected");
     99             function.appendArgument(itemNumber);
    100             function.call();
    101         }
    102     }
    103 
    104     virtual void contextMenuCleared() OVERRIDE
    105     {
    106         if (m_frontendHost) {
    107             ScriptFunctionCall function(m_frontendApiObject, "contextMenuCleared");
    108             function.call();
    109 
    110             m_frontendHost->m_menuProvider = 0;
    111         }
    112         m_items.clear();
    113         m_frontendHost = 0;
    114     }
    115 
    116     InspectorFrontendHost* m_frontendHost;
    117     ScriptValue m_frontendApiObject;
    118     Vector<ContextMenuItem> m_items;
    119 };
    120 
    121 InspectorFrontendHost::InspectorFrontendHost(InspectorFrontendClient* client, Page* frontendPage)
    122     : m_client(client)
    123     , m_frontendPage(frontendPage)
    124     , m_menuProvider(0)
    125 {
    126 }
    127 
    128 InspectorFrontendHost::~InspectorFrontendHost()
    129 {
    130     ASSERT(!m_client);
    131 }
    132 
    133 void InspectorFrontendHost::trace(Visitor* visitor)
    134 {
    135     visitor->trace(m_frontendPage);
    136 }
    137 
    138 void InspectorFrontendHost::disconnectClient()
    139 {
    140     m_client = 0;
    141     if (m_menuProvider)
    142         m_menuProvider->disconnect();
    143     m_frontendPage = nullptr;
    144 }
    145 
    146 void InspectorFrontendHost::setZoomFactor(float zoom)
    147 {
    148     if (!m_frontendPage)
    149         return;
    150     if (LocalFrame* frame = m_frontendPage->deprecatedLocalMainFrame())
    151         frame->setPageAndTextZoomFactors(zoom, 1);
    152 }
    153 
    154 float InspectorFrontendHost::zoomFactor()
    155 {
    156     if (!m_frontendPage)
    157         return 1;
    158     if (LocalFrame* frame = m_frontendPage->deprecatedLocalMainFrame())
    159         return frame->pageZoomFactor();
    160     return 1;
    161 }
    162 
    163 void InspectorFrontendHost::setInjectedScriptForOrigin(const String& origin, const String& script)
    164 {
    165     if (!m_frontendPage)
    166         return;
    167     m_frontendPage->inspectorController().setInjectedScriptForOrigin(origin, script);
    168 }
    169 
    170 void InspectorFrontendHost::copyText(const String& text)
    171 {
    172     Pasteboard::generalPasteboard()->writePlainText(text, Pasteboard::CannotSmartReplace);
    173 }
    174 
    175 static String escapeUnicodeNonCharacters(const String& str)
    176 {
    177     const UChar nonChar = 0xD800;
    178 
    179     unsigned i = 0;
    180     while (i < str.length() && str[i] < nonChar)
    181         ++i;
    182     if (i == str.length())
    183         return str;
    184 
    185     StringBuilder dst;
    186     dst.append(str, 0, i);
    187     for (; i < str.length(); ++i) {
    188         UChar c = str[i];
    189         if (c >= nonChar) {
    190             unsigned symbol = static_cast<unsigned>(c);
    191             String symbolCode = String::format("\\u%04X", symbol);
    192             dst.append(symbolCode);
    193         } else {
    194             dst.append(c);
    195         }
    196     }
    197     return dst.toString();
    198 }
    199 
    200 void InspectorFrontendHost::sendMessageToBackend(const String& message)
    201 {
    202     if (m_client)
    203         m_client->sendMessageToBackend(escapeUnicodeNonCharacters(message));
    204 }
    205 
    206 void InspectorFrontendHost::sendMessageToEmbedder(const String& message)
    207 {
    208     if (m_client)
    209         m_client->sendMessageToEmbedder(escapeUnicodeNonCharacters(message));
    210 }
    211 
    212 void InspectorFrontendHost::showContextMenu(Page* page, float x, float y, const Vector<ContextMenuItem>& items)
    213 {
    214     ASSERT(m_frontendPage);
    215     ScriptState* frontendScriptState = ScriptState::forMainWorld(m_frontendPage->deprecatedLocalMainFrame());
    216     ScriptValue frontendApiObject = frontendScriptState->getFromGlobalObject("InspectorFrontendAPI");
    217     ASSERT(frontendApiObject.isObject());
    218 
    219     RefPtr<FrontendMenuProvider> menuProvider = FrontendMenuProvider::create(this, frontendApiObject, items);
    220     m_menuProvider = menuProvider.get();
    221     float zoom = page->deprecatedLocalMainFrame()->pageZoomFactor();
    222     page->inspectorController().showContextMenu(x * zoom, y * zoom, menuProvider);
    223 }
    224 
    225 void InspectorFrontendHost::showContextMenu(Event* event, const Vector<ContextMenuItem>& items)
    226 {
    227     if (!event)
    228         return;
    229 
    230     ASSERT(m_frontendPage);
    231     ScriptState* frontendScriptState = ScriptState::forMainWorld(m_frontendPage->deprecatedLocalMainFrame());
    232     ScriptValue frontendApiObject = frontendScriptState->getFromGlobalObject("InspectorFrontendAPI");
    233     ASSERT(frontendApiObject.isObject());
    234 
    235     Page* targetPage = m_frontendPage;
    236     if (event->target() && event->target()->executionContext() && event->target()->executionContext()->executingWindow()) {
    237         LocalDOMWindow* window = event->target()->executionContext()->executingWindow();
    238         if (window->document() && window->document()->page())
    239             targetPage = window->document()->page();
    240     }
    241 
    242     RefPtr<FrontendMenuProvider> menuProvider = FrontendMenuProvider::create(this, frontendApiObject, items);
    243     targetPage->contextMenuController().showContextMenu(event, menuProvider);
    244     m_menuProvider = menuProvider.get();
    245 }
    246 
    247 String InspectorFrontendHost::getSelectionBackgroundColor()
    248 {
    249     return RenderTheme::theme().activeSelectionBackgroundColor().serialized();
    250 }
    251 
    252 String InspectorFrontendHost::getSelectionForegroundColor()
    253 {
    254     return RenderTheme::theme().activeSelectionForegroundColor().serialized();
    255 }
    256 
    257 bool InspectorFrontendHost::isUnderTest()
    258 {
    259     return m_client && m_client->isUnderTest();
    260 }
    261 
    262 bool InspectorFrontendHost::isHostedMode()
    263 {
    264     return false;
    265 }
    266 
    267 } // namespace blink
    268