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      1 /*
      2  * Copyright (C) 2010 Google 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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "WebDevToolsFrontendImpl.h"
     33 
     34 #include "InspectorFrontendClientImpl.h"
     35 #include "V8InspectorFrontendHost.h"
     36 #include "V8MouseEvent.h"
     37 #include "V8Node.h"
     38 #include "WebDevToolsFrontendClient.h"
     39 #include "WebFrameImpl.h"
     40 #include "WebScriptSource.h"
     41 #include "WebViewImpl.h"
     42 #include "bindings/v8/ScriptController.h"
     43 #include "bindings/v8/V8Binding.h"
     44 #include "bindings/v8/V8DOMWrapper.h"
     45 #include "bindings/v8/V8Utilities.h"
     46 #include "core/dom/Document.h"
     47 #include "core/dom/Event.h"
     48 #include "core/dom/Node.h"
     49 #include "core/inspector/InspectorController.h"
     50 #include "core/inspector/InspectorFrontendHost.h"
     51 #include "core/page/ContextMenuController.h"
     52 #include "core/page/DOMWindow.h"
     53 #include "core/page/Frame.h"
     54 #include "core/page/Page.h"
     55 #include "core/page/Settings.h"
     56 #include "core/platform/ContextMenuItem.h"
     57 #include "core/platform/Pasteboard.h"
     58 #include "weborigin/SecurityOrigin.h"
     59 #include "wtf/OwnPtr.h"
     60 #include "wtf/Vector.h"
     61 #include "wtf/text/WTFString.h"
     62 
     63 using namespace WebCore;
     64 
     65 namespace WebKit {
     66 
     67 class WebDevToolsFrontendImpl::InspectorFrontendResumeObserver : public ActiveDOMObject {
     68     WTF_MAKE_NONCOPYABLE(InspectorFrontendResumeObserver);
     69 public:
     70     InspectorFrontendResumeObserver(WebDevToolsFrontendImpl* webDevToolsFrontendImpl, Document* document)
     71         : ActiveDOMObject(document)
     72         , m_webDevToolsFrontendImpl(webDevToolsFrontendImpl)
     73     {
     74         suspendIfNeeded();
     75     }
     76 
     77 private:
     78     virtual bool canSuspend() const OVERRIDE
     79     {
     80         return true;
     81     }
     82 
     83     virtual void resume() OVERRIDE
     84     {
     85         m_webDevToolsFrontendImpl->resume();
     86     }
     87 
     88     WebDevToolsFrontendImpl* m_webDevToolsFrontendImpl;
     89 };
     90 
     91 WebDevToolsFrontend* WebDevToolsFrontend::create(
     92     WebView* view,
     93     WebDevToolsFrontendClient* client,
     94     const WebString& applicationLocale)
     95 {
     96     return new WebDevToolsFrontendImpl(
     97       static_cast<WebViewImpl*>(view),
     98       client,
     99       applicationLocale);
    100 }
    101 
    102 WebDevToolsFrontendImpl::WebDevToolsFrontendImpl(
    103     WebViewImpl* webViewImpl,
    104     WebDevToolsFrontendClient* client,
    105     const String& applicationLocale)
    106     : m_webViewImpl(webViewImpl)
    107     , m_client(client)
    108     , m_applicationLocale(applicationLocale)
    109     , m_inspectorFrontendDispatchTimer(this, &WebDevToolsFrontendImpl::maybeDispatch)
    110 {
    111     InspectorController* ic = m_webViewImpl->page()->inspectorController();
    112     ic->setInspectorFrontendClient(adoptPtr(new InspectorFrontendClientImpl(m_webViewImpl->page(), m_client, this)));
    113 
    114     // Put each DevTools frontend Page into a private group so that it's not
    115     // deferred along with the inspected page.
    116     m_webViewImpl->page()->setGroupType(Page::InspectorPageGroup);
    117 }
    118 
    119 WebDevToolsFrontendImpl::~WebDevToolsFrontendImpl()
    120 {
    121 }
    122 
    123 void WebDevToolsFrontendImpl::dispatchOnInspectorFrontend(const WebString& message)
    124 {
    125     m_messages.append(message);
    126     maybeDispatch(0);
    127 }
    128 
    129 void WebDevToolsFrontendImpl::resume()
    130 {
    131     // We should call maybeDispatch asynchronously here because we are not allowed to update activeDOMObjects list in
    132     // resume (See ScriptExecutionContext::resumeActiveDOMObjects).
    133     if (!m_inspectorFrontendDispatchTimer.isActive())
    134         m_inspectorFrontendDispatchTimer.startOneShot(0);
    135 }
    136 
    137 void WebDevToolsFrontendImpl::maybeDispatch(WebCore::Timer<WebDevToolsFrontendImpl>*)
    138 {
    139     while (!m_messages.isEmpty()) {
    140         Document* document = m_webViewImpl->page()->mainFrame()->document();
    141         if (document->activeDOMObjectsAreSuspended()) {
    142             m_inspectorFrontendResumeObserver = adoptPtr(new InspectorFrontendResumeObserver(this, document));
    143             return;
    144         }
    145         m_inspectorFrontendResumeObserver.clear();
    146         doDispatchOnInspectorFrontend(m_messages.takeFirst());
    147     }
    148 }
    149 
    150 void WebDevToolsFrontendImpl::doDispatchOnInspectorFrontend(const WebString& message)
    151 {
    152     WebFrameImpl* frame = m_webViewImpl->mainFrameImpl();
    153     v8::Isolate* isolate = v8::Isolate::GetCurrent();
    154     v8::HandleScope scope;
    155     v8::Handle<v8::Context> frameContext = frame->frame() ? frame->frame()->script()->currentWorldContext() : v8::Local<v8::Context>();
    156     v8::Context::Scope contextScope(frameContext);
    157     v8::Handle<v8::Value> inspectorFrontendApiValue = frameContext->Global()->Get(v8::String::New("InspectorFrontendAPI"));
    158     if (!inspectorFrontendApiValue->IsObject())
    159         return;
    160     v8::Handle<v8::Object> inspectorFrontendApi = v8::Handle<v8::Object>::Cast(inspectorFrontendApiValue);
    161     v8::Handle<v8::Value> dispatchFunction = inspectorFrontendApi->Get(v8::String::New("dispatchMessage"));
    162      // The frame might have navigated away from the front-end page (which is still weird).
    163     if (!dispatchFunction->IsFunction())
    164         return;
    165     v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(dispatchFunction);
    166     Vector< v8::Handle<v8::Value> > args;
    167     args.append(v8String(message, isolate));
    168     v8::TryCatch tryCatch;
    169     tryCatch.SetVerbose(true);
    170     ScriptController::callFunctionWithInstrumentation(frame->frame() ? frame->frame()->document() : 0, function, inspectorFrontendApi, args.size(), args.data());
    171 }
    172 
    173 } // namespace WebKit
    174