mirror of
https://bitbucket.org/chromiumembedded/cef
synced 2024-12-11 09:08:06 +01:00
dc47bc006a
git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/2272@1993 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
621 lines
20 KiB
C++
621 lines
20 KiB
C++
// Copyright (c) 2013 The Chromium Embedded Framework Authors. All rights
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// reserved. Use of this source code is governed by a BSD-style license that
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// can be found in the LICENSE file.
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#include <windows.h>
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#include <commdlg.h>
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#include <shellapi.h>
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#include <direct.h>
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#include <shlobj.h>
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#include <sstream>
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#include <string>
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#include "include/base/cef_bind.h"
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#include "include/cef_app.h"
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#include "include/cef_browser.h"
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#include "include/cef_frame.h"
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#include "include/cef_sandbox_win.h"
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#include "include/wrapper/cef_closure_task.h"
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#include "cefclient/client_app.h"
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#include "cefclient/client_handler.h"
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#include "cefclient/client_switches.h"
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#include "cefclient/main_context_impl.h"
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#include "cefclient/main_message_loop_multithreaded_win.h"
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#include "cefclient/main_message_loop_std.h"
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#include "cefclient/osr_widget_win.h"
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#include "cefclient/resource.h"
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#include "cefclient/test_runner.h"
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#include "cefclient/util_win.h"
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// When generating projects with CMake the CEF_USE_SANDBOX value will be defined
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// automatically if using the required compiler version. Pass -DUSE_SANDBOX=OFF
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// to the CMake command-line to disable use of the sandbox.
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// Uncomment this line to manually enable sandbox support.
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// #define CEF_USE_SANDBOX 1
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#if defined(CEF_USE_SANDBOX)
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// The cef_sandbox.lib static library is currently built with VS2013. It may not
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// link successfully with other VS versions.
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#pragma comment(lib, "cef_sandbox.lib")
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#endif
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namespace client {
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namespace {
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#define MAX_LOADSTRING 100
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#define MAX_URL_LENGTH 255
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#define BUTTON_WIDTH 72
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#define URLBAR_HEIGHT 24
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// Global Variables:
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HINSTANCE hInst; // current instance
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TCHAR szTitle[MAX_LOADSTRING]; // The title bar text
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TCHAR szWindowClass[MAX_LOADSTRING]; // the main window class name
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TCHAR szOSRWindowClass[MAX_LOADSTRING]; // the OSR window class name
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UINT uFindMsg; // Message identifier for find events.
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HWND hFindDlg = NULL; // Handle for the find dialog.
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// Forward declarations of functions included in this code module.
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ATOM RegisterMainClass(HINSTANCE hInstance);
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BOOL CreateMainWindow(HINSTANCE, int);
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LRESULT CALLBACK MainWndProc(HWND, UINT, WPARAM, LPARAM);
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LRESULT CALLBACK FindWndProc(HWND, UINT, WPARAM, LPARAM);
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INT_PTR CALLBACK AboutWndProc(HWND, UINT, WPARAM, LPARAM);
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// The global ClientHandler reference.
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CefRefPtr<ClientHandler> g_handler;
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// Used by off-screen rendering to find the associated CefBrowser.
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class MainBrowserProvider : public OSRBrowserProvider {
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virtual CefRefPtr<CefBrowser> GetBrowser() {
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if (g_handler.get())
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return g_handler->GetBrowser();
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return NULL;
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}
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} g_main_browser_provider;
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int RunMain(HINSTANCE hInstance, int nCmdShow) {
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void* sandbox_info = NULL;
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#if defined(CEF_USE_SANDBOX)
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// Manage the life span of the sandbox information object. This is necessary
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// for sandbox support on Windows. See cef_sandbox_win.h for complete details.
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CefScopedSandboxInfo scoped_sandbox;
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sandbox_info = scoped_sandbox.sandbox_info();
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#endif
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CefMainArgs main_args(hInstance);
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CefRefPtr<ClientApp> app(new ClientApp);
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// Execute the secondary process, if any.
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int exit_code = CefExecuteProcess(main_args, app.get(), sandbox_info);
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if (exit_code >= 0)
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return exit_code;
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// Create the main context object.
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scoped_ptr<MainContextImpl> context(new MainContextImpl(0, NULL));
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CefSettings settings;
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#if !defined(CEF_USE_SANDBOX)
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settings.no_sandbox = true;
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#endif
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// Populate the settings based on command line arguments.
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context->PopulateSettings(&settings);
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// Create the main message loop object.
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scoped_ptr<MainMessageLoop> message_loop;
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if (settings.multi_threaded_message_loop)
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message_loop.reset(new MainMessageLoopMultithreadedWin);
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else
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message_loop.reset(new MainMessageLoopStd);
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// Initialize CEF.
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CefInitialize(main_args, settings, app.get(), sandbox_info);
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// Register scheme handlers.
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test_runner::RegisterSchemeHandlers();
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// Initialize global strings
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LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
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LoadString(hInstance, IDC_CEFCLIENT, szWindowClass, MAX_LOADSTRING);
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LoadString(hInstance, IDS_OSR_WIDGET_CLASS, szOSRWindowClass, MAX_LOADSTRING);
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RegisterMainClass(hInstance);
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// Perform application initialization
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if (!CreateMainWindow(hInstance, nCmdShow))
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return FALSE;
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// Register the find event message.
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uFindMsg = RegisterWindowMessage(FINDMSGSTRING);
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// Run the message loop. This will block until Quit() is called.
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int result = message_loop->Run();
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// Shut down CEF.
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CefShutdown();
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// Release objects in reverse order of creation.
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message_loop.reset();
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context.reset();
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return result;
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}
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// Register the main window class.
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ATOM RegisterMainClass(HINSTANCE hInstance) {
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WNDCLASSEX wcex;
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wcex.cbSize = sizeof(WNDCLASSEX);
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wcex.style = CS_HREDRAW | CS_VREDRAW;
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wcex.lpfnWndProc = MainWndProc;
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wcex.cbClsExtra = 0;
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wcex.cbWndExtra = 0;
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wcex.hInstance = hInstance;
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wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_CEFCLIENT));
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wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
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wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
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wcex.lpszMenuName = MAKEINTRESOURCE(IDC_CEFCLIENT);
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wcex.lpszClassName = szWindowClass;
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wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));
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return RegisterClassEx(&wcex);
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}
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// Create and show the main window.
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BOOL CreateMainWindow(HINSTANCE hInstance, int nCmdShow) {
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HWND hWnd;
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hInst = hInstance; // Store instance handle in our global variable
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hWnd = CreateWindow(szWindowClass, szTitle,
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WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN, CW_USEDEFAULT, 0,
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CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);
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if (!hWnd)
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return FALSE;
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ShowWindow(hWnd, nCmdShow);
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UpdateWindow(hWnd);
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return TRUE;
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}
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// Set focus to |browser| on the UI thread.
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static void SetFocusToBrowser(CefRefPtr<CefBrowser> browser) {
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if (!CefCurrentlyOn(TID_UI)) {
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// Execute on the UI thread.
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CefPostTask(TID_UI, base::Bind(&SetFocusToBrowser, browser));
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return;
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}
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if (!g_handler)
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return;
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if (CefCommandLine::GetGlobalCommandLine()->HasSwitch(
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switches::kOffScreenRenderingEnabled)) {
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// Give focus to the OSR window.
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CefRefPtr<OSRWindow> osr_window =
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static_cast<OSRWindow*>(g_handler->GetOSRHandler().get());
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if (osr_window)
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::SetFocus(osr_window->hwnd());
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} else {
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// Give focus to the browser.
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browser->GetHost()->SetFocus(true);
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}
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}
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// Window procedure for the main window.
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LRESULT CALLBACK MainWndProc(HWND hWnd, UINT message, WPARAM wParam,
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LPARAM lParam) {
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static HWND backWnd = NULL, forwardWnd = NULL, reloadWnd = NULL,
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stopWnd = NULL, editWnd = NULL;
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static WNDPROC editWndOldProc = NULL;
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// Static members used for the find dialog.
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static FINDREPLACE fr;
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static WCHAR szFindWhat[80] = {0};
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static WCHAR szLastFindWhat[80] = {0};
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static bool findNext = false;
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static bool lastMatchCase = false;
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int wmId, wmEvent;
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PAINTSTRUCT ps;
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HDC hdc;
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if (hWnd == editWnd) {
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// Callback for the edit window
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switch (message) {
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case WM_CHAR:
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if (wParam == VK_RETURN && g_handler.get()) {
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// When the user hits the enter key load the URL
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CefRefPtr<CefBrowser> browser = g_handler->GetBrowser();
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wchar_t strPtr[MAX_URL_LENGTH+1] = {0};
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*((LPWORD)strPtr) = MAX_URL_LENGTH;
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LRESULT strLen = SendMessage(hWnd, EM_GETLINE, 0, (LPARAM)strPtr);
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if (strLen > 0) {
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strPtr[strLen] = 0;
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browser->GetMainFrame()->LoadURL(strPtr);
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}
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return 0;
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}
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}
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return (LRESULT)CallWindowProc(editWndOldProc, hWnd, message, wParam,
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lParam);
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} else if (message == uFindMsg) {
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// Find event.
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LPFINDREPLACE lpfr = (LPFINDREPLACE)lParam;
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if (lpfr->Flags & FR_DIALOGTERM) {
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// The find dialog box has been dismissed so invalidate the handle and
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// reset the search results.
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hFindDlg = NULL;
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if (g_handler.get()) {
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g_handler->GetBrowser()->GetHost()->StopFinding(true);
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szLastFindWhat[0] = 0;
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findNext = false;
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}
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return 0;
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}
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if ((lpfr->Flags & FR_FINDNEXT) && g_handler.get()) {
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// Search for the requested string.
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bool matchCase = (lpfr->Flags & FR_MATCHCASE?true:false);
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if (matchCase != lastMatchCase ||
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(matchCase && wcsncmp(szFindWhat, szLastFindWhat,
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sizeof(szLastFindWhat)/sizeof(WCHAR)) != 0) ||
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(!matchCase && _wcsnicmp(szFindWhat, szLastFindWhat,
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sizeof(szLastFindWhat)/sizeof(WCHAR)) != 0)) {
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// The search string has changed, so reset the search results.
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if (szLastFindWhat[0] != 0) {
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g_handler->GetBrowser()->GetHost()->StopFinding(true);
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findNext = false;
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}
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lastMatchCase = matchCase;
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wcscpy_s(szLastFindWhat, sizeof(szLastFindWhat)/sizeof(WCHAR),
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szFindWhat);
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}
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g_handler->GetBrowser()->GetHost()->Find(0, lpfr->lpstrFindWhat,
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(lpfr->Flags & FR_DOWN)?true:false, matchCase, findNext);
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if (!findNext)
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findNext = true;
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}
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return 0;
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} else {
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// Callback for the main window
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switch (message) {
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case WM_CREATE: {
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// Create the single static handler class instance
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g_handler = new ClientHandler();
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g_handler->SetMainWindowHandle(hWnd);
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// Create the child windows used for navigation
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RECT rect;
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int x = 0;
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GetClientRect(hWnd, &rect);
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backWnd = CreateWindow(L"BUTTON", L"Back",
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WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON
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| WS_DISABLED, x, 0, BUTTON_WIDTH, URLBAR_HEIGHT,
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hWnd, (HMENU) IDC_NAV_BACK, hInst, 0);
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x += BUTTON_WIDTH;
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forwardWnd = CreateWindow(L"BUTTON", L"Forward",
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WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON
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| WS_DISABLED, x, 0, BUTTON_WIDTH,
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URLBAR_HEIGHT, hWnd, (HMENU) IDC_NAV_FORWARD,
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hInst, 0);
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x += BUTTON_WIDTH;
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reloadWnd = CreateWindow(L"BUTTON", L"Reload",
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WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON
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| WS_DISABLED, x, 0, BUTTON_WIDTH,
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URLBAR_HEIGHT, hWnd, (HMENU) IDC_NAV_RELOAD,
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hInst, 0);
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x += BUTTON_WIDTH;
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stopWnd = CreateWindow(L"BUTTON", L"Stop",
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WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON
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| WS_DISABLED, x, 0, BUTTON_WIDTH, URLBAR_HEIGHT,
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hWnd, (HMENU) IDC_NAV_STOP, hInst, 0);
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x += BUTTON_WIDTH;
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editWnd = CreateWindow(L"EDIT", 0,
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WS_CHILD | WS_VISIBLE | WS_BORDER | ES_LEFT |
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ES_AUTOVSCROLL | ES_AUTOHSCROLL| WS_DISABLED,
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x, 0, rect.right - BUTTON_WIDTH * 4,
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URLBAR_HEIGHT, hWnd, 0, hInst, 0);
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// Assign the edit window's WNDPROC to this function so that we can
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// capture the enter key
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editWndOldProc =
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reinterpret_cast<WNDPROC>(GetWindowLongPtr(editWnd, GWLP_WNDPROC));
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SetWindowLongPtr(editWnd, GWLP_WNDPROC,
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reinterpret_cast<LONG_PTR>(MainWndProc));
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g_handler->SetEditWindowHandle(editWnd);
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g_handler->SetButtonWindowHandles(
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backWnd, forwardWnd, reloadWnd, stopWnd);
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rect.top += URLBAR_HEIGHT;
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CefWindowInfo info;
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CefBrowserSettings settings;
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// Populate the browser settings based on command line arguments.
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MainContext::Get()->PopulateBrowserSettings(&settings);
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CefRefPtr<CefCommandLine> command_line =
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CefCommandLine::GetGlobalCommandLine();
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if (command_line->HasSwitch(switches::kOffScreenRenderingEnabled)) {
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const bool transparent =
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command_line->HasSwitch(switches::kTransparentPaintingEnabled);
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const bool show_update_rect =
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command_line->HasSwitch(switches::kShowUpdateRect);
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CefRefPtr<OSRWindow> osr_window =
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OSRWindow::Create(&g_main_browser_provider, transparent,
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show_update_rect);
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osr_window->CreateWidget(hWnd, rect, hInst, szOSRWindowClass);
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info.SetAsWindowless(osr_window->hwnd(), transparent);
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g_handler->SetOSRHandler(osr_window.get());
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} else {
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// Initialize window info to the defaults for a child window.
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info.SetAsChild(hWnd, rect);
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}
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// Creat the new child browser window
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CefBrowserHost::CreateBrowser(info, g_handler.get(),
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g_handler->GetStartupURL(), settings, NULL);
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return 0;
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}
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case WM_COMMAND: {
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CefRefPtr<CefBrowser> browser;
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if (g_handler.get())
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browser = g_handler->GetBrowser();
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wmId = LOWORD(wParam);
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wmEvent = HIWORD(wParam);
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if (wmId >= ID_TESTS_FIRST && wmId <= ID_TESTS_LAST) {
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test_runner::RunTest(browser, wmId);
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return 0;
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}
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// Parse the menu selections:
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switch (wmId) {
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case IDM_ABOUT:
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DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, AboutWndProc);
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return 0;
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case IDM_EXIT:
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if (g_handler.get())
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g_handler->CloseAllBrowsers(false);
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return 0;
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case ID_FIND:
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if (!hFindDlg) {
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// Create the find dialog.
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ZeroMemory(&fr, sizeof(fr));
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fr.lStructSize = sizeof(fr);
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fr.hwndOwner = hWnd;
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fr.lpstrFindWhat = szFindWhat;
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fr.wFindWhatLen = sizeof(szFindWhat);
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fr.Flags = FR_HIDEWHOLEWORD | FR_DOWN;
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hFindDlg = FindText(&fr);
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// Override the dialog's window procedure.
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WNDPROC wndproc_old = SetWndProcPtr(hFindDlg, FindWndProc);
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// Associate |wndproc_old| with the dialog.
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SetUserDataPtr(hFindDlg, wndproc_old);
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} else {
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// Give focus to the existing find dialog.
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::SetFocus(hFindDlg);
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}
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return 0;
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case IDC_NAV_BACK: // Back button
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if (browser.get())
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browser->GoBack();
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return 0;
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case IDC_NAV_FORWARD: // Forward button
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if (browser.get())
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browser->GoForward();
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return 0;
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case IDC_NAV_RELOAD: // Reload button
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if (browser.get())
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browser->Reload();
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return 0;
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case IDC_NAV_STOP: // Stop button
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if (browser.get())
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browser->StopLoad();
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return 0;
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}
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break;
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}
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case WM_PAINT:
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hdc = BeginPaint(hWnd, &ps);
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EndPaint(hWnd, &ps);
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return 0;
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case WM_SETFOCUS:
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if (g_handler.get()) {
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CefRefPtr<CefBrowser> browser = g_handler->GetBrowser();
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if (browser)
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SetFocusToBrowser(browser);
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}
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return 0;
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case WM_SIZE: {
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if (!g_handler.get())
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break;
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// For off-screen browsers when the frame window is minimized set the
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// browser as hidden to reduce resource usage.
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const bool offscreen = CefCommandLine::GetGlobalCommandLine()->HasSwitch(
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switches::kOffScreenRenderingEnabled);
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if (offscreen) {
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CefRefPtr<OSRWindow> osr_window =
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static_cast<OSRWindow*>(g_handler->GetOSRHandler().get());
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if (osr_window)
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osr_window->WasHidden(wParam == SIZE_MINIMIZED);
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}
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if (g_handler->GetBrowser()) {
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// Retrieve the window handle (parent window with off-screen rendering).
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CefWindowHandle hwnd =
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g_handler->GetBrowser()->GetHost()->GetWindowHandle();
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if (hwnd) {
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if (wParam == SIZE_MINIMIZED) {
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// For windowed browsers when the frame window is minimized set the
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// browser window size to 0x0 to reduce resource usage.
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if (!offscreen) {
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SetWindowPos(hwnd, NULL,
|
|
0, 0, 0, 0, SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE);
|
|
}
|
|
} else {
|
|
// Resize the window and address bar to match the new frame size.
|
|
RECT rect;
|
|
GetClientRect(hWnd, &rect);
|
|
rect.top += URLBAR_HEIGHT;
|
|
|
|
int urloffset = rect.left + BUTTON_WIDTH * 4;
|
|
|
|
HDWP hdwp = BeginDeferWindowPos(1);
|
|
hdwp = DeferWindowPos(hdwp, editWnd, NULL, urloffset,
|
|
0, rect.right - urloffset, URLBAR_HEIGHT, SWP_NOZORDER);
|
|
hdwp = DeferWindowPos(hdwp, hwnd, NULL,
|
|
rect.left, rect.top, rect.right - rect.left,
|
|
rect.bottom - rect.top, SWP_NOZORDER);
|
|
EndDeferWindowPos(hdwp);
|
|
}
|
|
}
|
|
}
|
|
} break;
|
|
|
|
case WM_MOVING:
|
|
case WM_MOVE:
|
|
// Notify the browser of move events so that popup windows are displayed
|
|
// in the correct location and dismissed when the window moves.
|
|
if (g_handler.get() && g_handler->GetBrowser())
|
|
g_handler->GetBrowser()->GetHost()->NotifyMoveOrResizeStarted();
|
|
return 0;
|
|
|
|
case WM_ERASEBKGND:
|
|
if (g_handler.get() && g_handler->GetBrowser()) {
|
|
CefWindowHandle hwnd =
|
|
g_handler->GetBrowser()->GetHost()->GetWindowHandle();
|
|
if (hwnd) {
|
|
// Dont erase the background if the browser window has been loaded
|
|
// (this avoids flashing)
|
|
return 0;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case WM_ENTERMENULOOP:
|
|
if (!wParam) {
|
|
// Entering the menu loop for the application menu.
|
|
CefSetOSModalLoop(true);
|
|
}
|
|
break;
|
|
|
|
case WM_EXITMENULOOP:
|
|
if (!wParam) {
|
|
// Exiting the menu loop for the application menu.
|
|
CefSetOSModalLoop(false);
|
|
}
|
|
break;
|
|
|
|
case WM_CLOSE:
|
|
if (g_handler.get() && !g_handler->IsClosing()) {
|
|
CefRefPtr<CefBrowser> browser = g_handler->GetBrowser();
|
|
if (browser.get()) {
|
|
// Notify the browser window that we would like to close it. This
|
|
// will result in a call to ClientHandler::DoClose() if the
|
|
// JavaScript 'onbeforeunload' event handler allows it.
|
|
browser->GetHost()->CloseBrowser(false);
|
|
|
|
// Cancel the close.
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
// Allow the close.
|
|
break;
|
|
|
|
case WM_DESTROY:
|
|
// Quitting CEF is handled in ClientHandler::OnBeforeClose().
|
|
return 0;
|
|
}
|
|
|
|
return DefWindowProc(hWnd, message, wParam, lParam);
|
|
}
|
|
}
|
|
|
|
// Window procedure for the find dialog.
|
|
LRESULT CALLBACK FindWndProc(HWND hWnd, UINT message, WPARAM wParam,
|
|
LPARAM lParam) {
|
|
REQUIRE_MAIN_THREAD();
|
|
|
|
WNDPROC old_wndproc = GetUserDataPtr<WNDPROC>(hWnd);
|
|
DCHECK(old_wndproc);
|
|
|
|
switch (message) {
|
|
case WM_ACTIVATE:
|
|
// Set this dialog as current when activated.
|
|
MainMessageLoop::Get()->SetCurrentModelessDialog(
|
|
wParam == 0 ? NULL : hWnd);
|
|
return FALSE;
|
|
case WM_NCDESTROY:
|
|
// Clear the reference to |old_wndproc|.
|
|
SetUserDataPtr(hWnd, NULL);
|
|
break;
|
|
}
|
|
|
|
return CallWindowProc(old_wndproc, hWnd, message, wParam, lParam);
|
|
}
|
|
|
|
// Window procedure for the about dialog.
|
|
INT_PTR CALLBACK AboutWndProc(HWND hDlg, UINT message, WPARAM wParam,
|
|
LPARAM lParam) {
|
|
UNREFERENCED_PARAMETER(lParam);
|
|
switch (message) {
|
|
case WM_INITDIALOG:
|
|
return (INT_PTR)TRUE;
|
|
|
|
case WM_COMMAND:
|
|
if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) {
|
|
EndDialog(hDlg, LOWORD(wParam));
|
|
return (INT_PTR)TRUE;
|
|
}
|
|
break;
|
|
}
|
|
return (INT_PTR)FALSE;
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace client
|
|
|
|
|
|
// Program entry point function.
|
|
int APIENTRY wWinMain(HINSTANCE hInstance,
|
|
HINSTANCE hPrevInstance,
|
|
LPTSTR lpCmdLine,
|
|
int nCmdShow) {
|
|
UNREFERENCED_PARAMETER(hPrevInstance);
|
|
UNREFERENCED_PARAMETER(lpCmdLine);
|
|
return client::RunMain(hInstance, nCmdShow);
|
|
}
|