chrome/browser/extensions/chrome_extension_function.cc

   1 // Copyright 2013 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/browser/extensions/chrome_extension_function.h"
   6
   7 #include "chrome/browser/extensions/extension_function_dispatcher.h"
   8 #include "chrome/browser/extensions/window_controller.h"
   9 #include "chrome/browser/extensions/window_controller_list.h"
  10 #include "chrome/browser/profiles/profile.h"
  11 #include "chrome/browser/ui/browser.h"
  12 #include "chrome/browser/ui/browser_finder.h"
  13 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  14 #include "content/public/browser/render_process_host.h"
  15 #include "content/public/browser/render_view_host.h"
  16
  17 using content::RenderViewHost;
  18 using content::WebContents;
  19
  20 ChromeAsyncExtensionFunction::ChromeAsyncExtensionFunction() {}
  21
  22 Profile* ChromeAsyncExtensionFunction::GetProfile() const {
  23   return Profile::FromBrowserContext(context_);
  24 }
  25
  26 bool ChromeAsyncExtensionFunction::CanOperateOnWindow(
  27     const extensions::WindowController* window_controller) const {
  28   const extensions::Extension* extension = GetExtension();
  29   // |extension| is NULL for unit tests only.
  30   if (extension != NULL && !window_controller->IsVisibleToExtension(extension))
  31     return false;
  32
  33   if (GetProfile() == window_controller->profile())
  34     return true;
  35
  36   if (!include_incognito())
  37     return false;
  38
  39   return GetProfile()->HasOffTheRecordProfile() &&
  40          GetProfile()->GetOffTheRecordProfile() == window_controller->profile();
  41 }
  42
  43 // TODO(stevenjb): Replace this with GetExtensionWindowController().
  44 Browser* ChromeAsyncExtensionFunction::GetCurrentBrowser() {
  45   // If the delegate has an associated browser, return it.
  46   if (dispatcher()) {
  47     extensions::WindowController* window_controller =
  48         dispatcher()->delegate()->GetExtensionWindowController();
  49     if (window_controller) {
  50       Browser* browser = window_controller->GetBrowser();
  51       if (browser)
  52         return browser;
  53     }
  54   }
  55
  56   // Otherwise, try to default to a reasonable browser. If |include_incognito_|
  57   // is true, we will also search browsers in the incognito version of this
  58   // profile. Note that the profile may already be incognito, in which case
  59   // we will search the incognito version only, regardless of the value of
  60   // |include_incognito|. Look only for browsers on the active desktop as it is
  61   // preferable to pretend no browser is open then to return a browser on
  62   // another desktop.
  63   if (render_view_host_) {
  64     Profile* profile = Profile::FromBrowserContext(
  65         render_view_host_->GetProcess()->GetBrowserContext());
  66     Browser* browser = chrome::FindAnyBrowser(
  67         profile, include_incognito_, chrome::GetActiveDesktop());
  68     if (browser)
  69       return browser;
  70   }
  71
  72   // NOTE(rafaelw): This can return NULL in some circumstances. In particular,
  73   // a background_page onload chrome.tabs api call can make it into here
  74   // before the browser is sufficiently initialized to return here, or
  75   // all of this profile's browser windows may have been closed.
  76   // A similar situation may arise during shutdown.
  77   // TODO(rafaelw): Delay creation of background_page until the browser
  78   // is available. http://code.google.com/p/chromium/issues/detail?id=13284
  79   return NULL;
  80 }
  81
  82 extensions::WindowController*
  83 ChromeAsyncExtensionFunction::GetExtensionWindowController() {
  84   // If the delegate has an associated window controller, return it.
  85   if (dispatcher()) {
  86     extensions::WindowController* window_controller =
  87         dispatcher()->delegate()->GetExtensionWindowController();
  88     if (window_controller)
  89       return window_controller;
  90   }
  91
  92   return extensions::WindowControllerList::GetInstance()
  93       ->CurrentWindowForFunction(this);
  94 }
  95
  96 content::WebContents* ChromeAsyncExtensionFunction::GetAssociatedWebContents() {
  97   content::WebContents* web_contents =
  98       UIThreadExtensionFunction::GetAssociatedWebContents();
  99   if (web_contents)
 100     return web_contents;
 101
 102   Browser* browser = GetCurrentBrowser();
 103   if (!browser)
 104     return NULL;
 105   return browser->tab_strip_model()->GetActiveWebContents();
 106 }
 107
 108 ChromeAsyncExtensionFunction::~ChromeAsyncExtensionFunction() {}
 109
 110 ChromeSyncExtensionFunction::ChromeSyncExtensionFunction() {}
 111
 112 void ChromeSyncExtensionFunction::Run() { SendResponse(RunImpl()); }
 113
 114 ChromeSyncExtensionFunction::~ChromeSyncExtensionFunction() {}