15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/browser/accessibility/browser_accessibility_state_impl.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <windows.h> 82a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include <psapi.h> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/files/file_path.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/metrics/histogram.h" 12868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/strings/string_util.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace content { 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void BrowserAccessibilityStateImpl::UpdatePlatformSpecificHistograms() { 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // NOTE: this method is run from the file thread to reduce jank, since 182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // there's no guarantee these system calls will return quickly. Be careful 192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // not to add any code that isn't safe to run from a non-main thread! 202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AUDIODESCRIPTION audio_description = {0}; 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) audio_description.cbSize = sizeof(AUDIODESCRIPTION); 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SystemParametersInfo(SPI_GETAUDIODESCRIPTION, 0, &audio_description, 0); 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN("Accessibility.WinAudioDescription", 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) !!audio_description.Enabled); 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BOOL win_screen_reader = FALSE; 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SystemParametersInfo(SPI_GETSCREENREADER, 0, &win_screen_reader, 0); 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN("Accessibility.WinScreenReader", 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) !!win_screen_reader); 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) STICKYKEYS sticky_keys = {0}; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sticky_keys.cbSize = sizeof(STICKYKEYS); 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SystemParametersInfo(SPI_GETSTICKYKEYS, 0, &sticky_keys, 0); 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN("Accessibility.WinStickyKeys", 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 0 != (sticky_keys.dwFlags & SKF_STICKYKEYSON)); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Get the file paths of all DLLs loaded. 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) HANDLE process = GetCurrentProcess(); 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) HMODULE* modules = NULL; 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DWORD bytes_required; 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!EnumProcessModules(process, modules, 0, &bytes_required)) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 45c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) scoped_ptr<char[]> buffer(new char[bytes_required]); 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) modules = reinterpret_cast<HMODULE*>(buffer.get()); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DWORD ignore; 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!EnumProcessModules(process, modules, bytes_required, &ignore)) 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Look for DLLs of assistive technology known to work with Chrome. 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool jaws = false; 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool nvda = false; 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool satogo = false; 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool zoomtext = false; 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t module_count = bytes_required / sizeof(HMODULE); 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < module_count; i++) { 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) TCHAR filename[MAX_PATH]; 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GetModuleFileName(modules[i], filename, sizeof(filename)); 60a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) base::string16 module_name(base::FilePath(filename).BaseName().value()); 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (LowerCaseEqualsASCII(module_name, "fsdomsrv.dll")) 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) jaws = true; 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (LowerCaseEqualsASCII(module_name, "vbufbackend_gecko_ia2.dll")) 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nvda = true; 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (LowerCaseEqualsASCII(module_name, "stsaw32.dll")) 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) satogo = true; 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (LowerCaseEqualsASCII(module_name, "zslhook.dll")) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) zoomtext = true; 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN("Accessibility.WinJAWS", jaws); 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN("Accessibility.WinNVDA", nvda); 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN("Accessibility.WinSAToGo", satogo); 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN("Accessibility.WinZoomText", zoomtext); 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace content 78