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// Copyright © 2010-2015 The CefSharp Project. All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "Stdafx.h"
#include "ManagedCefBrowserAdapter.h"
#include "Internals/Messaging/Messages.h"
#include "Internals/CefFrameWrapper.h"
#include "Internals/CefSharpBrowserWrapper.h"
using namespace CefSharp::Internals::Messaging;
bool ManagedCefBrowserAdapter::IsDisposed::get()
{
return _isDisposed;
}
void ManagedCefBrowserAdapter::CreateOffscreenBrowser(IntPtr windowHandle, BrowserSettings^ browserSettings, RequestContext^ requestContext, String^ address)
{
//Create the required BitmapInfo classes before the offscreen browser is initialized
auto renderClientAdapter = dynamic_cast<RenderClientAdapter*>(_clientAdapter.get());
renderClientAdapter->CreateBitmapInfo();
auto hwnd = static_cast<HWND>(windowHandle.ToPointer());
CefWindowInfo window;
auto transparent = browserSettings->OffScreenTransparentBackground.GetValueOrDefault(true);
window.SetAsWindowless(hwnd, transparent);
CefString addressNative = StringUtils::ToNative(address);
if (!CefBrowserHost::CreateBrowser(window, _clientAdapter.get(), addressNative,
*browserSettings->_browserSettings, requestContext))
{
throw gcnew InvalidOperationException("Failed to create offscreen browser. Call Cef.Initialize() first.");
}
}
void ManagedCefBrowserAdapter::OnAfterBrowserCreated(int browserId)
{
if (!_isDisposed)
{
//browser wrapper instance has to be set up for the BrowserProcessServiceHost
auto browser = _clientAdapter->GetCefBrowser();
if (browser != nullptr)
{
//the js callback factory needs the browser instance to pass it to the js callback implementations for messaging purposes
_browserWrapper = gcnew CefSharpBrowserWrapper(browser);
}
_javascriptCallbackFactory->BrowserAdapter = gcnew WeakReference(this);
if (CefSharpSettings::WcfEnabled)
{
_browserProcessServiceHost = gcnew BrowserProcessServiceHost(_javaScriptObjectRepository, Process::GetCurrentProcess()->Id, this);
//NOTE: Attempt to solve timing issue where browser is opened and rapidly disposed. In some cases a call to Open throws
// an exception about the process already being closed. Two relevant issues are #862 and #804.
// Considering adding an IsDisposed check and also may have to revert to a try catch block
if (_browserProcessServiceHost->State == CommunicationState::Created)
{
_browserProcessServiceHost->Open();
}
}
if (_webBrowserInternal != nullptr)
{
_webBrowserInternal->OnAfterBrowserCreated();
}
}
}
void ManagedCefBrowserAdapter::WasResized()
{
auto browser = _clientAdapter->GetCefBrowser();
if (browser != nullptr)
{
browser->GetHost()->WasResized();
}
}
void ManagedCefBrowserAdapter::WasHidden(bool hidden)
{
auto browser = _clientAdapter->GetCefBrowser();
if (browser != nullptr)
{
browser->GetHost()->WasHidden(hidden);
}
}
void ManagedCefBrowserAdapter::SendFocusEvent(bool isFocused)
{
auto browser = _clientAdapter->GetCefBrowser();
if (browser != nullptr)
{
browser->GetHost()->SendFocusEvent(isFocused);
}
}
void ManagedCefBrowserAdapter::SetFocus(bool isFocused)
{
auto browser = _clientAdapter->GetCefBrowser();
if (browser != nullptr)
{
browser->GetHost()->SetFocus(isFocused);
}
}
bool ManagedCefBrowserAdapter::SendKeyEvent(int message, int wParam, int lParam)
{
auto browser = _clientAdapter->GetCefBrowser();
if (browser->GetHost() == nullptr)
{
return false;
}
CefKeyEvent keyEvent;
keyEvent.windows_key_code = wParam;
keyEvent.native_key_code = lParam;
keyEvent.is_system_key = message == WM_SYSCHAR ||
message == WM_SYSKEYDOWN ||
message == WM_SYSKEYUP;
if (message == WM_KEYDOWN || message == WM_SYSKEYDOWN)
{
keyEvent.type = KEYEVENT_RAWKEYDOWN;
}
else if (message == WM_KEYUP || message == WM_SYSKEYUP)
{
keyEvent.type = KEYEVENT_KEYUP;
}
else
{
keyEvent.type = KEYEVENT_CHAR;
}
keyEvent.modifiers = GetCefKeyboardModifiers(wParam, lParam);
browser->GetHost()->SendKeyEvent(keyEvent);
return true;
}
//Code imported from
//https://bitbucket.org/chromiumembedded/branches-2062-cef3/src/a073e92426b3967f1fc2f1d3fd7711d809eeb03a/tests/cefclient/cefclient_osr_widget_win.cpp?at=master#cl-361
int ManagedCefBrowserAdapter::GetCefKeyboardModifiers(WPARAM wparam, LPARAM lparam)
{
int modifiers = 0;
if (IsKeyDown(VK_SHIFT))
modifiers |= EVENTFLAG_SHIFT_DOWN;
if (IsKeyDown(VK_CONTROL))
modifiers |= EVENTFLAG_CONTROL_DOWN;
if (IsKeyDown(VK_MENU))
modifiers |= EVENTFLAG_ALT_DOWN;
// Low bit set from GetKeyState indicates "toggled".
if (::GetKeyState(VK_NUMLOCK) & 1)
modifiers |= EVENTFLAG_NUM_LOCK_ON;
if (::GetKeyState(VK_CAPITAL) & 1)
modifiers |= EVENTFLAG_CAPS_LOCK_ON;
switch (wparam)
{
case VK_RETURN:
if ((lparam >> 16) & KF_EXTENDED)
modifiers |= EVENTFLAG_IS_KEY_PAD;
break;
case VK_INSERT:
case VK_DELETE:
case VK_HOME:
case VK_END:
case VK_PRIOR:
case VK_NEXT:
case VK_UP:
case VK_DOWN:
case VK_LEFT:
case VK_RIGHT:
if (!((lparam >> 16) & KF_EXTENDED))
modifiers |= EVENTFLAG_IS_KEY_PAD;
break;
case VK_NUMLOCK:
case VK_NUMPAD0:
case VK_NUMPAD1:
case VK_NUMPAD2:
case VK_NUMPAD3:
case VK_NUMPAD4:
case VK_NUMPAD5:
case VK_NUMPAD6:
case VK_NUMPAD7:
case VK_NUMPAD8:
case VK_NUMPAD9:
case VK_DIVIDE:
case VK_MULTIPLY:
case VK_SUBTRACT:
case VK_ADD:
case VK_DECIMAL:
case VK_CLEAR:
modifiers |= EVENTFLAG_IS_KEY_PAD;
break;
case VK_SHIFT:
if (IsKeyDown(VK_LSHIFT))
modifiers |= EVENTFLAG_IS_LEFT;
else if (IsKeyDown(VK_RSHIFT))
modifiers |= EVENTFLAG_IS_RIGHT;
break;
case VK_CONTROL:
if (IsKeyDown(VK_LCONTROL))
modifiers |= EVENTFLAG_IS_LEFT;
else if (IsKeyDown(VK_RCONTROL))
modifiers |= EVENTFLAG_IS_RIGHT;
break;
case VK_MENU:
if (IsKeyDown(VK_LMENU))
modifiers |= EVENTFLAG_IS_LEFT;
else if (IsKeyDown(VK_RMENU))
modifiers |= EVENTFLAG_IS_RIGHT;
break;
case VK_LWIN:
modifiers |= EVENTFLAG_IS_LEFT;
break;
case VK_RWIN:
modifiers |= EVENTFLAG_IS_RIGHT;
break;
}
return modifiers;
}
void ManagedCefBrowserAdapter::CreateBrowser(BrowserSettings^ browserSettings, RequestContext^ requestContext, IntPtr sourceHandle, String^ address)
{
HWND hwnd = static_cast<HWND>(sourceHandle.ToPointer());
RECT rect;
GetClientRect(hwnd, &rect);
CefWindowInfo window;
window.SetAsChild(hwnd, rect);
CefString addressNative = StringUtils::ToNative(address);
CefBrowserHost::CreateBrowser(window, _clientAdapter.get(), addressNative,
*browserSettings->_browserSettings, requestContext);
}
void ManagedCefBrowserAdapter::Resize(int width, int height)
{
HWND browserHwnd = _clientAdapter->GetBrowserHwnd();
if (browserHwnd)
{
if (width == 0 && height == 0)
{
// For windowed browsers when the frame window is minimized set the
// browser window size to 0x0 to reduce resource usage.
SetWindowPos(browserHwnd, NULL, 0, 0, 0, 0, SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE);
}
else
{
SetWindowPos(browserHwnd, NULL, 0, 0, width, height, SWP_NOZORDER);
}
}
}
void ManagedCefBrowserAdapter::NotifyMoveOrResizeStarted()
{
auto browser = _clientAdapter->GetCefBrowser();
if (browser != nullptr)
{
browser->GetHost()->NotifyMoveOrResizeStarted();
}
}
void ManagedCefBrowserAdapter::NotifyScreenInfoChanged()
{
auto browser = _clientAdapter->GetCefBrowser();
if (browser != nullptr)
{
browser->GetHost()->NotifyScreenInfoChanged();
}
}
void ManagedCefBrowserAdapter::RegisterJsObject(String^ name, Object^ object, bool lowerCaseJavascriptNames)
{
if (!CefSharpSettings::WcfEnabled)
{
throw gcnew InvalidOperationException("To enable synchronous JS bindings set WcfEnabled true in CefSettings during initialization.");
}
_javaScriptObjectRepository->Register(name, object, lowerCaseJavascriptNames);
}
void ManagedCefBrowserAdapter::RegisterAsyncJsObject(String^ name, Object^ object, bool lowerCaseJavascriptNames)
{
_javaScriptObjectRepository->RegisterAsync(name, object, lowerCaseJavascriptNames);
}
CefMouseEvent ManagedCefBrowserAdapter::GetCefMouseEvent(MouseEvent^ mouseEvent)
{
CefMouseEvent cefMouseEvent;
cefMouseEvent.x = mouseEvent->X;
cefMouseEvent.y = mouseEvent->Y;
cefMouseEvent.modifiers = (uint32)mouseEvent->Modifiers;
return cefMouseEvent;
}
void ManagedCefBrowserAdapter::OnDragTargetDragEnter(CefDragDataWrapper^ dragData, MouseEvent^ mouseEvent, DragOperationsMask allowedOperations)
{
auto browser = _clientAdapter->GetCefBrowser();
if (browser != nullptr)
{
dragData->ResetFileContents(); // Recommended by documentation to reset before calling DragEnter
browser->GetHost()->DragTargetDragEnter(*dragData->InternalDragData, GetCefMouseEvent(mouseEvent), (CefBrowserHost::DragOperationsMask) allowedOperations);
}
}
void ManagedCefBrowserAdapter::OnDragTargetDragOver(MouseEvent^ mouseEvent, DragOperationsMask allowedOperations)
{
auto browser = _clientAdapter->GetCefBrowser();
if (browser != nullptr)
{
browser->GetHost()->DragTargetDragOver(GetCefMouseEvent(mouseEvent), (CefBrowserHost::DragOperationsMask) allowedOperations);
}
}
void ManagedCefBrowserAdapter::OnDragTargetDragLeave()
{
auto browser = _clientAdapter->GetCefBrowser();
if (browser != nullptr)
{
browser->GetHost()->DragTargetDragLeave();
}
}
void ManagedCefBrowserAdapter::OnDragTargetDragDrop(MouseEvent^ mouseEvent)
{
auto browser = _clientAdapter->GetCefBrowser();
if (browser != nullptr)
{
browser->GetHost()->DragTargetDrop(GetCefMouseEvent(mouseEvent));
}
}
void ManagedCefBrowserAdapter::OnDragSourceEndedAt(int x, int y, DragOperationsMask op)
{
auto browser = _clientAdapter->GetCefBrowser();
if (browser != nullptr)
{
browser->GetHost()->DragSourceEndedAt(x, y, (CefBrowserHost::DragOperationsMask)op);
}
}
void ManagedCefBrowserAdapter::OnDragSourceSystemDragEnded()
{
auto browser = _clientAdapter->GetCefBrowser();
if (browser != nullptr)
{
browser->GetHost()->DragSourceSystemDragEnded();
}
}
/// <summary>
/// Gets the CefBrowserWrapper instance
/// </summary>
/// <returns>Gets the current instance or null</returns>
IBrowser^ ManagedCefBrowserAdapter::GetBrowser()
{
return _browserWrapper;
}
IBrowser^ ManagedCefBrowserAdapter::GetBrowser(int browserId)
{
return _clientAdapter->GetBrowserWrapper(browserId);
}
IJavascriptCallbackFactory^ ManagedCefBrowserAdapter::JavascriptCallbackFactory::get()
{
return _javascriptCallbackFactory;
}
JavascriptObjectRepository^ ManagedCefBrowserAdapter::JavascriptObjectRepository::get()
{
return _javaScriptObjectRepository;
}
MethodRunnerQueue^ ManagedCefBrowserAdapter::MethodRunnerQueue::get()
{
return _methodRunnerQueue;
}
void ManagedCefBrowserAdapter::MethodInvocationComplete(Object^ sender, MethodInvocationCompleteArgs^ e)
{
auto result = e->Result;
if (result->CallbackId.HasValue)
{
_clientAdapter->MethodInvocationComplete(result);
}
}
MCefRefPtr<ClientAdapter> ManagedCefBrowserAdapter::GetClientAdapter()
{
return _clientAdapter;
}