diff options
Diffstat (limited to 'win8/delegate_execute/command_execute_impl.cc')
-rw-r--r-- | win8/delegate_execute/command_execute_impl.cc | 440 |
1 files changed, 0 insertions, 440 deletions
diff --git a/win8/delegate_execute/command_execute_impl.cc b/win8/delegate_execute/command_execute_impl.cc deleted file mode 100644 index ef1378a..0000000 --- a/win8/delegate_execute/command_execute_impl.cc +++ /dev/null @@ -1,440 +0,0 @@ -// Copyright (c) 2012 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. -// Implementation of the CommandExecuteImpl class which implements the -// IExecuteCommand and related interfaces for handling ShellExecute based -// launches of the Chrome browser. - -#include "win8/delegate_execute/command_execute_impl.h" - -#include "base/file_util.h" -#include "base/path_service.h" -#include "base/utf_string_conversions.h" -#include "base/win/scoped_co_mem.h" -#include "base/win/scoped_handle.h" -#include "chrome/common/chrome_constants.h" -#include "chrome/common/chrome_paths.h" -#include "chrome/common/chrome_switches.h" -#include "win8/delegate_execute/chrome_util.h" - -// CommandExecuteImpl is resposible for activating chrome in Windows 8. The -// flow is complicated and this tries to highlight the important events. -// The current approach is to have a single instance of chrome either -// running in desktop or metro mode. If there is no current instance then -// the desktop shortcut launches desktop chrome and the metro tile or search -// charm launches metro chrome. -// If chrome is running then focus/activation is given to the existing one -// regarless of what launch point the user used. -// -// The general flow when chrome is the default browser is as follows: -// -// 1- User interacts with launch point (icon, tile, search, shellexec, etc) -// 2- Windows finds the appid for launch item and resolves it to chrome -// 3- Windows activates CommandExecuteImpl inside a surrogate process -// 4- Windows calls the following sequence of entry points: -// CommandExecuteImpl::SetShowWindow -// CommandExecuteImpl::SetPosition -// CommandExecuteImpl::SetDirectory -// CommandExecuteImpl::SetParameter -// CommandExecuteImpl::SetNoShowUI -// CommandExecuteImpl::SetSelection -// CommandExecuteImpl::Initialize -// Up to this point the code basically just gathers values passed in, like -// the launch scheme (or url) and the activation verb. -// 5- Windows calls CommandExecuteImpl::Getvalue() -// Here we need to return AHE_IMMERSIVE or AHE_DESKTOP. That depends on: -// a) if run in high-integrity return AHE_DESKTOP -// b) if chrome is running return the AHE_ mode of chrome -// c) if the current process is inmmersive return AHE_IMMERSIVE -// d) if the protocol is file and IExecuteCommandHost::GetUIMode() is not -// ECHUIM_DESKTOP then return AHE_IMMERSIVE -// e) if none of the above return AHE_DESKTOP -// 6- If we returned AHE_DESKTOP in step 5 then CommandExecuteImpl::Execute() -// is called, here we call GetLaunchMode() which: -// a) if chrome is running return the mode of chrome or -// b) return IExecuteCommandHost::GetUIMode() -// 7- If GetLaunchMode() returns -// a) ECHUIM_DESKTOP we call LaunchDestopChrome() that calls ::CreateProcess -// b) else we call one of the IApplicationActivationManager activation -// functions depending on the parameters passed in step 4. -// -// Some examples will help clarify the common cases. -// -// I - No chrome running, taskbar icon launch: -// a) Scheme is 'file', Verb is 'open' -// b) GetValue() returns at e) step : AHE_DESKTOP -// c) Execute() calls LaunchDestopChrome() -// --> desktop chrome runs -// II- No chrome running, tile activation launch: -// a) Scheme is 'file', Verb is 'open' -// b) GetValue() returns at d) step : AHE_IMMERSIVE -// c) Windows does not call us back and just activates chrome -// --> metro chrome runs -// III- No chrome running, url link click on metro app: -// a) Scheme is 'http', Verb is 'open' -// b) Getvalue() returns at e) step : AHE_DESKTOP -// c) Execute() calls IApplicationActivationManager::ActivateForProtocol -// --> metro chrome runs -// -CommandExecuteImpl::CommandExecuteImpl() - : integrity_level_(base::INTEGRITY_UNKNOWN), - launch_scheme_(INTERNET_SCHEME_DEFAULT), - chrome_mode_(ECHUIM_SYSTEM_LAUNCHER) { - memset(&start_info_, 0, sizeof(start_info_)); - start_info_.cb = sizeof(start_info_); - // We need to query the user data dir of chrome so we need chrome's - // path provider. - chrome::RegisterPathProvider(); -} - -// CommandExecuteImpl -STDMETHODIMP CommandExecuteImpl::SetKeyState(DWORD key_state) { - AtlTrace("In %hs\n", __FUNCTION__); - return S_OK; -} - -STDMETHODIMP CommandExecuteImpl::SetParameters(LPCWSTR params) { - AtlTrace("In %hs [%S]\n", __FUNCTION__, params); - if (params) { - parameters_ = params; - } - return S_OK; -} - -STDMETHODIMP CommandExecuteImpl::SetPosition(POINT pt) { - AtlTrace("In %hs\n", __FUNCTION__); - return S_OK; -} - -STDMETHODIMP CommandExecuteImpl::SetShowWindow(int show) { - AtlTrace("In %hs show=%d\n", __FUNCTION__, show); - start_info_.wShowWindow = show; - start_info_.dwFlags |= STARTF_USESHOWWINDOW; - return S_OK; -} - -STDMETHODIMP CommandExecuteImpl::SetNoShowUI(BOOL no_show_ui) { - AtlTrace("In %hs no_show=%d\n", __FUNCTION__, no_show_ui); - return S_OK; -} - -STDMETHODIMP CommandExecuteImpl::SetDirectory(LPCWSTR directory) { - AtlTrace("In %hs\n", __FUNCTION__); - return S_OK; -} - -STDMETHODIMP CommandExecuteImpl::GetValue(enum AHE_TYPE* pahe) { - AtlTrace("In %hs\n", __FUNCTION__); - - if (!GetLaunchScheme(&display_name_, &launch_scheme_)) { - AtlTrace("Failed to get scheme, E_FAIL\n"); - return E_FAIL; - } - - if (integrity_level_ == base::HIGH_INTEGRITY) { - // Metro mode apps don't work in high integrity mode. - AtlTrace("High integrity, AHE_DESKTOP\n"); - *pahe = AHE_DESKTOP; - return S_OK; - } - - FilePath user_data_dir; - if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir)) { - AtlTrace("Failed to get chrome's data dir path, E_FAIL\n"); - return E_FAIL; - } - - HWND chrome_window = ::FindWindowEx(HWND_MESSAGE, NULL, - chrome::kMessageWindowClass, - user_data_dir.value().c_str()); - if (chrome_window) { - AtlTrace("Found chrome window %p\n", chrome_window); - // The failure cases below are deemed to happen due to the inherently racy - // procedure of going from chrome's window to process handle during which - // chrome might have exited. Failing here would probably just cause the - // user to retry at which point we would do the right thing. - DWORD chrome_pid = 0; - ::GetWindowThreadProcessId(chrome_window, &chrome_pid); - if (!chrome_pid) { - AtlTrace("Failed to get chrome's PID, E_FAIL\n"); - return E_FAIL; - } - base::win::ScopedHandle process( - ::OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, chrome_pid)); - if (!process.IsValid()) { - AtlTrace("Failed to open chrome's process [%d], E_FAIL\n", chrome_pid); - return E_FAIL; - } - if (IsImmersiveProcess(process.Get())) { - AtlTrace("Chrome [%d] is inmmersive, AHE_IMMERSIVE\n", chrome_pid); - chrome_mode_ = ECHUIM_IMMERSIVE; - *pahe = AHE_IMMERSIVE; - } else { - AtlTrace("Chrome [%d] is Desktop, AHE_DESKTOP\n"); - chrome_mode_ = ECHUIM_DESKTOP; - *pahe = AHE_DESKTOP; - } - return S_OK; - } - - if (IsImmersiveProcess(GetCurrentProcess())) { - AtlTrace("Current process is inmmersive, AHE_IMMERSIVE\n"); - *pahe = AHE_IMMERSIVE; - return S_OK; - } - - if ((launch_scheme_ == INTERNET_SCHEME_FILE) && - (GetLaunchMode() != ECHUIM_DESKTOP)) { - AtlTrace("INTERNET_SCHEME_FILE, mode != ECHUIM_DESKTOP, AHE_IMMERSIVE\n"); - *pahe = AHE_IMMERSIVE; - return S_OK; - } - - AtlTrace("Fallback is AHE_DESKTOP\n"); - *pahe = AHE_DESKTOP; - return S_OK; -} - -STDMETHODIMP CommandExecuteImpl::Execute() { - AtlTrace("In %hs\n", __FUNCTION__); - - if (integrity_level_ == base::HIGH_INTEGRITY) - return LaunchDesktopChrome(); - - EC_HOST_UI_MODE mode = GetLaunchMode(); - if (mode == ECHUIM_DESKTOP) - return LaunchDesktopChrome(); - - HRESULT hr = E_FAIL; - CComPtr<IApplicationActivationManager> activation_manager; - hr = activation_manager.CoCreateInstance(CLSID_ApplicationActivationManager); - if (!activation_manager) { - AtlTrace("Failed to get the activation manager, error 0x%x\n", hr); - return S_OK; - } - - string16 app_id = delegate_execute::GetAppId(chrome_exe_); - - DWORD pid = 0; - if (launch_scheme_ == INTERNET_SCHEME_FILE) { - AtlTrace("Activating for file\n"); - hr = activation_manager->ActivateApplication(app_id.c_str(), - verb_.c_str(), - AO_NOERRORUI, - &pid); - } else { - AtlTrace("Activating for protocol\n"); - hr = activation_manager->ActivateForProtocol(app_id.c_str(), - item_array_, - &pid); - } - if (hr == E_APPLICATION_NOT_REGISTERED) { - AtlTrace("Metro chrome is not registered, launching in desktop\n"); - return LaunchDesktopChrome(); - } - AtlTrace("Metro Chrome launch, pid=%d, returned 0x%x\n", pid, hr); - return S_OK; -} - -STDMETHODIMP CommandExecuteImpl::Initialize(LPCWSTR name, - IPropertyBag* bag) { - AtlTrace("In %hs\n", __FUNCTION__); - if (!FindChromeExe(&chrome_exe_)) - return E_FAIL; - delegate_execute::UpdateChromeIfNeeded(chrome_exe_); - if (name) { - AtlTrace("Verb is %S\n", name); - verb_ = name; - } - - base::GetProcessIntegrityLevel(base::GetCurrentProcessHandle(), - &integrity_level_); - if (integrity_level_ == base::HIGH_INTEGRITY) { - AtlTrace("Delegate execute launched in high integrity level\n"); - } - return S_OK; -} - -STDMETHODIMP CommandExecuteImpl::SetSelection(IShellItemArray* item_array) { - AtlTrace("In %hs\n", __FUNCTION__); - item_array_ = item_array; - return S_OK; -} - -STDMETHODIMP CommandExecuteImpl::GetSelection(REFIID riid, void** selection) { - AtlTrace("In %hs\n", __FUNCTION__); - return S_OK; -} - -STDMETHODIMP CommandExecuteImpl::AllowForegroundTransfer(void* reserved) { - AtlTrace("In %hs\n", __FUNCTION__); - return S_OK; -} - -// Returns false if chrome.exe cannot be found. -// static -bool CommandExecuteImpl::FindChromeExe(FilePath* chrome_exe) { - AtlTrace("In %hs\n", __FUNCTION__); - // Look for chrome.exe one folder above delegate_execute.exe (as expected in - // Chrome installs). Failing that, look for it alonside delegate_execute.exe. - FilePath dir_exe; - if (!PathService::Get(base::DIR_EXE, &dir_exe)) { - AtlTrace("Failed to get current exe path\n"); - return false; - } - - *chrome_exe = dir_exe.DirName().Append(chrome::kBrowserProcessExecutableName); - if (!file_util::PathExists(*chrome_exe)) { - *chrome_exe = dir_exe.Append(chrome::kBrowserProcessExecutableName); - if (!file_util::PathExists(*chrome_exe)) { - AtlTrace("Failed to find chrome exe file\n"); - return false; - } - } - - AtlTrace("Got chrome exe path as %ls\n", chrome_exe->value().c_str()); - return true; -} - -bool CommandExecuteImpl::GetLaunchScheme( - string16* display_name, INTERNET_SCHEME* scheme) { - if (!item_array_) - return false; - - ATLASSERT(display_name); - ATLASSERT(scheme); - - DWORD count = 0; - item_array_->GetCount(&count); - - if (count != 1) { - AtlTrace("Cannot handle %d elements in the IShellItemArray\n", count); - return false; - } - - CComPtr<IEnumShellItems> items; - item_array_->EnumItems(&items); - CComPtr<IShellItem> shell_item; - HRESULT hr = items->Next(1, &shell_item, &count); - if (hr != S_OK) { - AtlTrace("Failed to read element from the IShellItemsArray\n"); - return false; - } - - base::win::ScopedCoMem<wchar_t> name; - hr = shell_item->GetDisplayName(SIGDN_URL, &name); - if (hr != S_OK) { - AtlTrace("Failed to get display name\n"); - return false; - } - - AtlTrace("Display name is [%ls]\n", name); - - wchar_t scheme_name[16]; - URL_COMPONENTS components = {0}; - components.lpszScheme = scheme_name; - components.dwSchemeLength = sizeof(scheme_name)/sizeof(scheme_name[0]); - - components.dwStructSize = sizeof(components); - if (!InternetCrackUrlW(name, 0, 0, &components)) { - AtlTrace("Failed to crack url %ls\n", name); - return false; - } - - AtlTrace("Launch scheme is [%ls] (%d)\n", scheme_name, components.nScheme); - *display_name = name; - *scheme = components.nScheme; - return true; -} - -HRESULT CommandExecuteImpl::LaunchDesktopChrome() { - AtlTrace("In %hs\n", __FUNCTION__); - string16 display_name = display_name_; - - switch (launch_scheme_) { - case INTERNET_SCHEME_FILE: - // If anything other than chrome.exe is passed in the display name we - // should honor it. For e.g. If the user clicks on a html file when - // chrome is the default we should treat it as a parameter to be passed - // to chrome. - if (display_name.find(L"chrome.exe") != string16::npos) - display_name.clear(); - break; - - default: - break; - } - - string16 command_line = L"\""; - command_line += chrome_exe_.value(); - command_line += L"\""; - - if (!parameters_.empty()) { - AtlTrace("Adding parameters %ls to command line\n", parameters_.c_str()); - command_line += L" "; - command_line += parameters_.c_str(); - } - - if (!display_name.empty()) { - command_line += L" -- "; - command_line += display_name; - } - - AtlTrace("Formatted command line is %ls\n", command_line.c_str()); - - PROCESS_INFORMATION proc_info = {0}; - BOOL ret = CreateProcess(NULL, const_cast<LPWSTR>(command_line.c_str()), - NULL, NULL, FALSE, 0, NULL, NULL, &start_info_, - &proc_info); - if (ret) { - AtlTrace("Process id is %d\n", proc_info.dwProcessId); - CloseHandle(proc_info.hProcess); - CloseHandle(proc_info.hThread); - } else { - AtlTrace("Process launch failed, error %d\n", ::GetLastError()); - } - - return S_OK; -} - -EC_HOST_UI_MODE CommandExecuteImpl::GetLaunchMode() { - // We are to return chrome's mode if chrome exists else we query our embedder - // IServiceProvider and learn the mode from them. - static bool launch_mode_determined = false; - static EC_HOST_UI_MODE launch_mode = ECHUIM_DESKTOP; - - const char* modes[] = { "Desktop", "Inmmersive", "SysLauncher", "??" }; - - if (launch_mode_determined) - return launch_mode; - - if (chrome_mode_ != ECHUIM_SYSTEM_LAUNCHER) { - launch_mode = chrome_mode_; - AtlTrace("Launch mode is that of chrome, %s\n", modes[launch_mode]); - launch_mode_determined = true; - return launch_mode; - } - - if (parameters_ == ASCIIToWide(switches::kForceImmersive)) { - launch_mode = ECHUIM_IMMERSIVE; - AtlTrace("Launch mode forced to %s\n", modes[launch_mode]); - launch_mode_determined = true; - return launch_mode; - } - - CComPtr<IExecuteCommandHost> host; - CComQIPtr<IServiceProvider> service_provider = m_spUnkSite; - if (service_provider) { - service_provider->QueryService(IID_IExecuteCommandHost, &host); - if (host) { - host->GetUIMode(&launch_mode); - } else { - AtlTrace("Failed to get IID_IExecuteCommandHost. Assuming desktop\n"); - } - } else { - AtlTrace("Failed to get IServiceProvider. Assuming desktop mode\n"); - } - AtlTrace("Launch mode is %s\n", modes[launch_mode]); - launch_mode_determined = true; - return launch_mode; -} |