third_party/WebKit/Source/web/InspectorEmulationAgent.cpp

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "config.h"
   6 #include "web/InspectorEmulationAgent.h"
   7
   8 #include "core/frame/FrameHost.h"
   9 #include "core/frame/FrameView.h"
  10 #include "core/frame/Settings.h"
  11 #include "core/inspector/InspectorState.h"
  12 #include "core/page/Page.h"
  13 #include "platform/geometry/DoubleRect.h"
  14 #include "web/DevToolsEmulator.h"
  15 #include "web/WebLocalFrameImpl.h"
  16 #include "web/WebViewImpl.h"
  17
  18 namespace blink {
  19
  20 namespace EmulationAgentState {
  21 static const char scriptExecutionDisabled[] = "scriptExecutionDisabled";
  22 static const char touchEventEmulationEnabled[] = "touchEventEmulationEnabled";
  23 static const char emulatedMedia[] = "emulatedMedia";
  24 }
  25
  26 PassOwnPtrWillBeRawPtr<InspectorEmulationAgent> InspectorEmulationAgent::create(WebViewImpl* webViewImpl)
  27 {
  28     return adoptPtrWillBeNoop(new InspectorEmulationAgent(webViewImpl));
  29 }
  30
  31 InspectorEmulationAgent::InspectorEmulationAgent(WebViewImpl* webViewImpl)
  32     : InspectorBaseAgent<InspectorEmulationAgent, InspectorFrontend::Emulation>("Emulation")
  33     , m_webViewImpl(webViewImpl)
  34 {
  35     m_webViewImpl->devToolsEmulator()->setEmulationAgent(this);
  36 }
  37
  38 InspectorEmulationAgent::~InspectorEmulationAgent()
  39 {
  40 }
  41
  42 void InspectorEmulationAgent::restore()
  43 {
  44     ErrorString error;
  45     setScriptExecutionDisabled(&error, m_state->getBoolean(EmulationAgentState::scriptExecutionDisabled));
  46     setTouchEmulationEnabled(&error, m_state->getBoolean(EmulationAgentState::touchEventEmulationEnabled), nullptr);
  47     setEmulatedMedia(&error, m_state->getString(EmulationAgentState::emulatedMedia));
  48 }
  49
  50 void InspectorEmulationAgent::disable(ErrorString*)
  51 {
  52     ErrorString error;
  53     setScriptExecutionDisabled(&error, false);
  54     setTouchEmulationEnabled(&error, false, nullptr);
  55     setEmulatedMedia(&error, String());
  56 }
  57
  58 void InspectorEmulationAgent::discardAgent()
  59 {
  60     m_webViewImpl->devToolsEmulator()->setEmulationAgent(nullptr);
  61 }
  62
  63 void InspectorEmulationAgent::didCommitLoadForLocalFrame(LocalFrame* frame)
  64 {
  65     if (frame == m_webViewImpl->mainFrameImpl()->frame())
  66         viewportChanged();
  67 }
  68
  69 void InspectorEmulationAgent::resetScrollAndPageScaleFactor(ErrorString*)
  70 {
  71     m_webViewImpl->resetScrollAndScaleStateImmediately();
  72 }
  73
  74 void InspectorEmulationAgent::setPageScaleFactor(ErrorString*, double pageScaleFactor)
  75 {
  76     m_webViewImpl->setPageScaleFactor(static_cast<float>(pageScaleFactor));
  77 }
  78
  79 void InspectorEmulationAgent::setScriptExecutionDisabled(ErrorString*, bool value)
  80 {
  81     m_state->setBoolean(EmulationAgentState::scriptExecutionDisabled, value);
  82     m_webViewImpl->devToolsEmulator()->setScriptExecutionDisabled(value);
  83 }
  84
  85 void InspectorEmulationAgent::setTouchEmulationEnabled(ErrorString*, bool enabled, const String* configuration)
  86 {
  87     m_state->setBoolean(EmulationAgentState::touchEventEmulationEnabled, enabled);
  88     m_webViewImpl->devToolsEmulator()->setTouchEventEmulationEnabled(enabled);
  89 }
  90
  91 void InspectorEmulationAgent::setEmulatedMedia(ErrorString*, const String& media)
  92 {
  93     m_state->setString(EmulationAgentState::emulatedMedia, media);
  94     m_webViewImpl->page()->settings().setMediaTypeOverride(media);
  95 }
  96
  97 void InspectorEmulationAgent::viewportChanged()
  98 {
  99     if (!m_webViewImpl->devToolsEmulator()->deviceEmulationEnabled() || !frontend())
 100         return;
 101
 102     FrameView* view = m_webViewImpl->mainFrameImpl()->frameView();
 103     IntSize contentsSize = view->contentsSize();
 104     FloatPoint scrollOffset;
 105     scrollOffset = FloatPoint(view->scrollableArea()->visibleContentRectDouble().location());
 106
 107     RefPtr<TypeBuilder::Emulation::Viewport> viewport = TypeBuilder::Emulation::Viewport::create()
 108         .setScrollX(scrollOffset.x())
 109         .setScrollY(scrollOffset.y())
 110         .setContentsWidth(contentsSize.width())
 111         .setContentsHeight(contentsSize.height())
 112         .setPageScaleFactor(m_webViewImpl->page()->pageScaleFactor())
 113         .setMinimumPageScaleFactor(m_webViewImpl->minimumPageScaleFactor())
 114         .setMaximumPageScaleFactor(m_webViewImpl->maximumPageScaleFactor());
 115     frontend()->viewportChanged(viewport);
 116 }
 117
 118 DEFINE_TRACE(InspectorEmulationAgent)
 119 {
 120     InspectorBaseAgent::trace(visitor);
 121 }
 122
 123 } // namespace blink