ios/web/web_view_creation_util.mm

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ios/web/public/web_view_creation_util.h"
   6
   7 #include <Foundation/Foundation.h>
   8 #include <sys/sysctl.h>
   9
  10 #include "base/ios/ios_util.h"
  11 #include "base/logging.h"
  12 #import "ios/web/public/browsing_data_partition.h"
  13 #import "ios/web/web_state/ui/wk_web_view_configuration_provider.h"
  14 #import "ios/web/web_state/web_view_internal_creation_util.h"
  15
  16 namespace web {
  17
  18 bool IsWKWebViewSupported() {
  19   // WKWebView is available starting from iOS8.
  20   if (!base::ios::IsRunningOnIOS8OrLater())
  21     return false;
  22
  23 // WKWebView does not work with 32-bit binaries running on 64-bit hardware.
  24 // (rdar://18268087)
  25 #if !defined(__LP64__)
  26   NSString* simulator_model_id =
  27       [[NSProcessInfo processInfo] environment][@"SIMULATOR_MODEL_IDENTIFIER"];
  28   // For simulator it's not possible to query hw.cpu64bit_capable value as the
  29   // function will return information for mac hardware rather than simulator.
  30   if (simulator_model_id) {
  31     // A set of known 32-bit simulators that are also iOS 8 compatible.
  32     // (taken from iOS 8.1 SDK simulators list).
  33     NSSet* known_32_bit_devices = [NSSet
  34         setWithArray:@[ @"iPad2,1", @"iPad3,1", @"iPhone4,1", @"iPhone5,1" ]];
  35     return [known_32_bit_devices containsObject:simulator_model_id];
  36   }
  37   uint32_t cpu64bit_capable = 0;
  38   size_t sizes = sizeof(cpu64bit_capable);
  39   sysctlbyname("hw.cpu64bit_capable", &cpu64bit_capable, &sizes, NULL, 0);
  40   return !cpu64bit_capable;
  41 #else
  42   return true;
  43 #endif
  44 }
  45
  46 WKWebView* CreateWKWebView(CGRect frame, BrowserState* browser_state) {
  47   DCHECK(browser_state);
  48
  49   WKWebViewConfigurationProvider& config_provider =
  50       WKWebViewConfigurationProvider::FromBrowserState(browser_state);
  51   return CreateWKWebView(frame, config_provider.GetWebViewConfiguration(),
  52                          browser_state);
  53 }
  54
  55 }  // namespace web