src/chrome/test/chromedriver/chrome/mobile_emulation_override_manager.cc

   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 "chrome/test/chromedriver/chrome/mobile_emulation_override_manager.h"
   6
   7 #include "base/values.h"
   8 #include "chrome/test/chromedriver/chrome/browser_info.h"
   9 #include "chrome/test/chromedriver/chrome/device_metrics.h"
  10 #include "chrome/test/chromedriver/chrome/devtools_client.h"
  11 #include "chrome/test/chromedriver/chrome/status.h"
  12
  13 MobileEmulationOverrideManager::MobileEmulationOverrideManager(
  14     DevToolsClient* client,
  15     const DeviceMetrics* device_metrics,
  16     const BrowserInfo* browser_info)
  17     : client_(client),
  18       overridden_device_metrics_(device_metrics),
  19       browser_info_(browser_info) {
  20   if (overridden_device_metrics_)
  21     client_->AddListener(this);
  22 }
  23
  24 MobileEmulationOverrideManager::~MobileEmulationOverrideManager() {
  25 }
  26
  27 Status MobileEmulationOverrideManager::OnConnected(DevToolsClient* client) {
  28   return ApplyOverrideIfNeeded();
  29 }
  30
  31 Status MobileEmulationOverrideManager::OnEvent(
  32     DevToolsClient* client,
  33     const std::string& method,
  34     const base::DictionaryValue& params) {
  35   if (method == "Page.frameNavigated") {
  36     const base::Value* unused_value;
  37     if (!params.Get("frame.parentId", &unused_value))
  38       return ApplyOverrideIfNeeded();
  39   }
  40   return Status(kOk);
  41 }
  42
  43 Status MobileEmulationOverrideManager::ApplyOverrideIfNeeded() {
  44   if (overridden_device_metrics_ == NULL)
  45     return Status(kOk);
  46
  47   // Old revisions of Blink expect a parameter named |emulateViewport| but in
  48   // Blink revision 177367 (Chromium revision 281046, build number 2081) this
  49   // was renamed to |mobile|.
  50   std::string mobile_param_name = "mobile";
  51   if (browser_info_->browser_name == "chrome") {
  52     if (browser_info_->build_no <= 2081)
  53       mobile_param_name = "emulateViewport";
  54   } else {
  55     if (browser_info_->blink_revision < 177367)
  56       mobile_param_name = "emulateViewport";
  57   }
  58
  59   base::DictionaryValue params;
  60   params.SetInteger("width", overridden_device_metrics_->width);
  61   params.SetInteger("height", overridden_device_metrics_->height);
  62   params.SetDouble("deviceScaleFactor",
  63                    overridden_device_metrics_->device_scale_factor);
  64   params.SetBoolean(mobile_param_name, overridden_device_metrics_->mobile);
  65   params.SetBoolean("fitWindow", overridden_device_metrics_->fit_window);
  66   params.SetBoolean("textAutosizing",
  67                     overridden_device_metrics_->text_autosizing);
  68   params.SetDouble("fontScaleFactor",
  69                    overridden_device_metrics_->font_scale_factor);
  70   Status status = client_->SendCommand("Page.setDeviceMetricsOverride", params);
  71   if (status.IsError())
  72     return status;
  73
  74   // Always emulate touch.
  75   base::DictionaryValue emulate_touch_params;
  76   emulate_touch_params.SetBoolean("enabled", true);
  77   return client_->SendCommand(
  78       "Page.setTouchEmulationEnabled", emulate_touch_params);
  79 }