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simple_handler.cc
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// Copyright (c) 2013 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.
#include "cefsimple/simple_handler.h"
#include <sstream>
#include <string>
#include <ole2.h>
#include "include/base/cef_bind.h"
#include "include/cef_app.h"
#include "include/wrapper/cef_closure_task.h"
#include "include/wrapper/cef_helpers.h"
#include "simple_app.h"
namespace {
SimpleHandler* g_instance = NULL;
} // namespace
SimpleHandler::SimpleHandler()
: is_closing_(false) {
DCHECK(!g_instance);
g_instance = this;
}
SimpleHandler::~SimpleHandler() {
g_instance = NULL;
}
// static
SimpleHandler* SimpleHandler::GetInstance() {
return g_instance;
}
void SimpleHandler::OnAfterCreated(CefRefPtr<CefBrowser> browser) {
CEF_REQUIRE_UI_THREAD();
// Add to the list of existing browsers.
browser_list_.push_back(browser);
// Disable drag and drop
HWND hWndHost = browser->GetHost()->GetWindowHandle();
HWND hWndHostChild = GetWindow(hWndHost, GW_CHILD);
RevokeDragDrop(hWndHostChild);
}
bool SimpleHandler::DoClose(CefRefPtr<CefBrowser> browser) {
CEF_REQUIRE_UI_THREAD();
ShowWindow(SimpleApp::gameWindow, SW_SHOW);
// Closing the main window requires special handling. See the DoClose()
// documentation in the CEF header for a detailed destription of this
// process.
if (browser_list_.size() == 1) {
// Set a flag to indicate that the window close should be allowed.
is_closing_ = true;
}
// Allow the close. For windowed browsers this will result in the OS close
// event being sent.
return false;
}
void SimpleHandler::OnBeforeClose(CefRefPtr<CefBrowser> browser) {
CEF_REQUIRE_UI_THREAD();
// Remove from the list of existing browsers.
BrowserList::iterator bit = browser_list_.begin();
for (; bit != browser_list_.end(); ++bit) {
if ((*bit)->IsSame(browser)) {
browser_list_.erase(bit);
break;
}
}
if (browser_list_.empty()) {
// All browser windows have closed. Quit the application message loop.
CefQuitMessageLoop();
}
}
void SimpleHandler::OnLoadError(CefRefPtr<CefBrowser> browser,
CefRefPtr<CefFrame> frame,
ErrorCode errorCode,
const CefString& errorText,
const CefString& failedUrl) {
CEF_REQUIRE_UI_THREAD();
// Don't display an error for downloaded files.
if (errorCode == ERR_ABORTED)
return;
// Display a load error message.
std::stringstream ss;
ss << "<html><body bgcolor=\"white\">"
"<h2>Failed to load URL " << std::string(failedUrl) <<
" with error " << std::string(errorText) << " (" << errorCode <<
").</h2></body></html>";
frame->LoadString(ss.str(), failedUrl);
}
void SimpleHandler::CloseAllBrowsers(bool force_close) {
if (!CefCurrentlyOn(TID_UI)) {
// Execute on the UI thread.
CefPostTask(TID_UI,
base::Bind(&SimpleHandler::CloseAllBrowsers, this, force_close));
return;
}
if (browser_list_.empty())
return;
BrowserList::const_iterator it = browser_list_.begin();
for (; it != browser_list_.end(); ++it)
(*it)->GetHost()->CloseBrowser(force_close);
}