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 "InspectorFrontendClientLocal.h" 33 34 #if ENABLE(INSPECTOR) 35 36 #include "Chrome.h" 37 #include "FloatRect.h" 38 #include "Frame.h" 39 #include "FrameView.h" 40 #include "InspectorBackendDispatcher.h" 41 #include "InspectorController.h" 42 #include "InspectorFrontendHost.h" 43 #include "Page.h" 44 #include "PlatformString.h" 45 #include "ScriptFunctionCall.h" 46 #include "ScriptObject.h" 47 #include "Settings.h" 48 49 namespace WebCore { 50 51 static const char* inspectorAttachedHeightSetting = "inspectorAttachedHeight"; 52 static const unsigned defaultAttachedHeight = 300; 53 static const float minimumAttachedHeight = 250.0f; 54 static const float maximumAttachedHeightRatio = 0.75f; 55 56 String InspectorFrontendClientLocal::Settings::getProperty(const String&) 57 { 58 return String(); 59 } 60 61 void InspectorFrontendClientLocal::Settings::setProperty(const String&, const String&) 62 { 63 } 64 65 InspectorFrontendClientLocal::InspectorFrontendClientLocal(InspectorController* inspectorController, Page* frontendPage, PassOwnPtr<Settings> settings) 66 : m_inspectorController(inspectorController) 67 , m_frontendPage(frontendPage) 68 , m_frontendScriptState(0) 69 , m_settings(settings) 70 { 71 m_frontendPage->settings()->setAllowFileAccessFromFileURLs(true); 72 } 73 74 InspectorFrontendClientLocal::~InspectorFrontendClientLocal() 75 { 76 if (m_frontendHost) 77 m_frontendHost->disconnectClient(); 78 m_frontendScriptState = 0; 79 m_frontendPage = 0; 80 m_inspectorController = 0; 81 } 82 83 void InspectorFrontendClientLocal::windowObjectCleared() 84 { 85 // FIXME: don't keep reference to the script state 86 m_frontendScriptState = scriptStateFromPage(debuggerWorld(), m_frontendPage); 87 m_frontendHost = InspectorFrontendHost::create(this, m_frontendPage); 88 ScriptGlobalObject::set(m_frontendScriptState, "InspectorFrontendHost", m_frontendHost.get()); 89 } 90 91 void InspectorFrontendClientLocal::frontendLoaded() 92 { 93 bringToFront(); 94 m_inspectorController->connectFrontend(); 95 } 96 97 void InspectorFrontendClientLocal::requestAttachWindow() 98 { 99 if (!canAttachWindow()) 100 return; 101 attachWindow(); 102 setAttachedWindow(true); 103 } 104 105 void InspectorFrontendClientLocal::requestDetachWindow() 106 { 107 detachWindow(); 108 setAttachedWindow(false); 109 } 110 111 bool InspectorFrontendClientLocal::canAttachWindow() 112 { 113 unsigned inspectedPageHeight = m_inspectorController->inspectedPage()->mainFrame()->view()->visibleHeight(); 114 115 // Don't allow the attach if the window would be too small to accommodate the minimum inspector height. 116 return minimumAttachedHeight <= inspectedPageHeight * maximumAttachedHeightRatio; 117 } 118 119 void InspectorFrontendClientLocal::changeAttachedWindowHeight(unsigned height) 120 { 121 unsigned totalHeight = m_frontendPage->mainFrame()->view()->visibleHeight() + m_inspectorController->inspectedPage()->mainFrame()->view()->visibleHeight(); 122 unsigned attachedHeight = constrainedAttachedWindowHeight(height, totalHeight); 123 m_settings->setProperty(inspectorAttachedHeightSetting, String::number(attachedHeight)); 124 setAttachedWindowHeight(attachedHeight); 125 } 126 127 void InspectorFrontendClientLocal::moveWindowBy(float x, float y) 128 { 129 FloatRect frameRect = m_frontendPage->chrome()->windowRect(); 130 frameRect.move(x, y); 131 m_frontendPage->chrome()->setWindowRect(frameRect); 132 } 133 134 void InspectorFrontendClientLocal::setAttachedWindow(bool attached) 135 { 136 ScriptObject webInspectorObj; 137 if (!ScriptGlobalObject::get(m_frontendScriptState, "WebInspector", webInspectorObj)) { 138 ASSERT_NOT_REACHED(); 139 return; 140 } 141 ScriptFunctionCall function(webInspectorObj, "setAttachedWindow"); 142 function.appendArgument(attached); 143 function.call(); 144 } 145 146 void InspectorFrontendClientLocal::restoreAttachedWindowHeight() 147 { 148 unsigned inspectedPageHeight = m_inspectorController->inspectedPage()->mainFrame()->view()->visibleHeight(); 149 String value = m_settings->getProperty(inspectorAttachedHeightSetting); 150 unsigned preferredHeight = value.isEmpty() ? defaultAttachedHeight : value.toUInt(); 151 152 // This call might not go through (if the window starts out detached), but if the window is initially created attached, 153 // InspectorController::attachWindow is never called, so we need to make sure to set the attachedWindowHeight. 154 // FIXME: Clean up code so we only have to call setAttachedWindowHeight in InspectorController::attachWindow 155 setAttachedWindowHeight(constrainedAttachedWindowHeight(preferredHeight, inspectedPageHeight)); 156 } 157 158 unsigned InspectorFrontendClientLocal::constrainedAttachedWindowHeight(unsigned preferredHeight, unsigned totalWindowHeight) 159 { 160 using namespace std; 161 return roundf(max(minimumAttachedHeight, min<float>(preferredHeight, totalWindowHeight * maximumAttachedHeightRatio))); 162 } 163 164 void InspectorFrontendClientLocal::sendMessageToBackend(const String& message) 165 { 166 m_inspectorController->dispatchMessageFromFrontend(message); 167 } 168 169 } // namespace WebCore 170 171 #endif 172