| // Copyright 2015 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. |
| |
| #include <stddef.h> |
| |
| #include "base/command_line.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "chrome/renderer/plugins/power_saver_info.h" |
| #include "content/public/common/content_constants.h" |
| #include "content/public/common/content_switches.h" |
| #include "content/public/common/webplugininfo.h" |
| #include "content/public/renderer/render_frame.h" |
| #include "third_party/blink/public/platform/web_security_origin.h" |
| #include "third_party/blink/public/web/web_local_frame.h" |
| #include "third_party/blink/public/web/web_plugin_params.h" |
| #include "url/origin.h" |
| |
| namespace { |
| |
| std::string GetPluginInstancePosterAttribute( |
| const blink::WebPluginParams& params) { |
| DCHECK_EQ(params.attribute_names.size(), params.attribute_values.size()); |
| |
| for (size_t i = 0; i < params.attribute_names.size(); ++i) { |
| if (params.attribute_names[i].Utf8() == "poster" && |
| !params.attribute_values[i].IsEmpty()) { |
| return params.attribute_values[i].Utf8(); |
| } |
| } |
| return std::string(); |
| } |
| |
| bool GetPluginPowerSaverEnabled(bool power_saver_setting_on, bool is_flash) { |
| base::CommandLine* command_line = base::CommandLine::ForCurrentProcess(); |
| std::string override_for_testing = command_line->GetSwitchValueASCII( |
| switches::kOverridePluginPowerSaverForTesting); |
| |
| // This feature has only been tested thoroughly with Flash thus far. It is |
| // also enabled for the Power Saver test plugin for browser tests. |
| if (override_for_testing == "always") |
| return true; |
| else if (override_for_testing == "never") |
| return false; |
| else |
| return power_saver_setting_on && is_flash; |
| } |
| |
| } // namespace |
| |
| PowerSaverInfo::PowerSaverInfo() |
| : power_saver_enabled(false), blocked_for_background_tab(false) {} |
| |
| PowerSaverInfo::PowerSaverInfo(const PowerSaverInfo& other) = default; |
| |
| PowerSaverInfo PowerSaverInfo::Get(content::RenderFrame* render_frame, |
| bool power_saver_setting_on, |
| const blink::WebPluginParams& params, |
| const content::WebPluginInfo& plugin_info, |
| const GURL& document_url) { |
| bool is_flash = |
| plugin_info.name == base::ASCIIToUTF16(content::kFlashPluginName); |
| |
| PowerSaverInfo info; |
| info.power_saver_enabled = |
| GetPluginPowerSaverEnabled(power_saver_setting_on, is_flash); |
| |
| if (info.power_saver_enabled) { |
| info.blocked_for_background_tab = render_frame->IsHidden(); |
| info.poster_attribute = GetPluginInstancePosterAttribute(params); |
| info.base_url = document_url; |
| } |
| |
| return info; |
| } |
