android_webview/browser/aw_dev_tools_discovery_provider.cc

   1 // Copyright 2015 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 "android_webview/browser/aw_dev_tools_discovery_provider.h"
   6
   7 #include "android_webview/browser/browser_view_renderer.h"
   8 #include "base/json/json_writer.h"
   9 #include "base/strings/stringprintf.h"
  10 #include "base/strings/utf_string_conversions.h"
  11 #include "base/values.h"
  12 #include "components/devtools_discovery/basic_target_descriptor.h"
  13 #include "components/devtools_discovery/devtools_discovery_manager.h"
  14 #include "content/public/browser/devtools_agent_host.h"
  15 #include "content/public/browser/web_contents.h"
  16
  17 using content::DevToolsAgentHost;
  18 using content::WebContents;
  19
  20 namespace {
  21
  22 std::string GetViewDescription(WebContents* web_contents) {
  23   android_webview::BrowserViewRenderer* bvr =
  24       android_webview::BrowserViewRenderer::FromWebContents(web_contents);
  25   if (!bvr) return "";
  26   base::DictionaryValue description;
  27   description.SetBoolean("attached", bvr->attached_to_window());
  28   description.SetBoolean("visible", bvr->IsVisible());
  29   gfx::Rect screen_rect = bvr->GetScreenRect();
  30   description.SetInteger("screenX", screen_rect.x());
  31   description.SetInteger("screenY", screen_rect.y());
  32   description.SetBoolean("empty", screen_rect.size().IsEmpty());
  33   if (!screen_rect.size().IsEmpty()) {
  34     description.SetInteger("width", screen_rect.width());
  35     description.SetInteger("height", screen_rect.height());
  36   }
  37   std::string json;
  38   base::JSONWriter::Write(&description, &json);
  39   return json;
  40 }
  41
  42 class TargetDescriptor : public devtools_discovery::BasicTargetDescriptor {
  43  public:
  44   explicit TargetDescriptor(scoped_refptr<DevToolsAgentHost> agent_host);
  45
  46   // devtools_discovery::BasicTargetDescriptor overrides.
  47   std::string GetDescription() const override { return description_; }
  48
  49  private:
  50   std::string description_;
  51
  52   DISALLOW_COPY_AND_ASSIGN(TargetDescriptor);
  53 };
  54
  55 TargetDescriptor::TargetDescriptor(scoped_refptr<DevToolsAgentHost> agent_host)
  56     : BasicTargetDescriptor(agent_host) {
  57   if (WebContents* web_contents = agent_host->GetWebContents())
  58     description_ = GetViewDescription(web_contents);
  59 }
  60
  61 }  // namespace
  62
  63 namespace android_webview {
  64
  65 // static
  66 void AwDevToolsDiscoveryProvider::Install() {
  67   devtools_discovery::DevToolsDiscoveryManager* discovery_manager =
  68       devtools_discovery::DevToolsDiscoveryManager::GetInstance();
  69   discovery_manager->AddProvider(
  70       make_scoped_ptr(new AwDevToolsDiscoveryProvider()));
  71 }
  72
  73 AwDevToolsDiscoveryProvider::AwDevToolsDiscoveryProvider() {
  74 }
  75
  76 AwDevToolsDiscoveryProvider::~AwDevToolsDiscoveryProvider() {
  77 }
  78
  79 devtools_discovery::DevToolsTargetDescriptor::List
  80 AwDevToolsDiscoveryProvider::GetDescriptors() {
  81   DevToolsAgentHost::List agent_hosts = DevToolsAgentHost::GetOrCreateAll();
  82   devtools_discovery::DevToolsTargetDescriptor::List result;
  83   result.reserve(agent_hosts.size());
  84   for (const auto& agent_host : agent_hosts)
  85     result.push_back(new TargetDescriptor(agent_host));
  86   return result;
  87 }
  88
  89 }  // namespace android_webview