Implement script API:executeScript

chrome/browser/extensions/extension_tabs_module.cc

 // Copyright (c) 2009 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 "chrome/browser/extensions/extension_tabs_module.h"
 
 #include "base/gfx/jpeg_codec.h"
 #include "base/string_util.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/browser_list.h"
 #include "chrome/browser/browser_window.h"
 #include "chrome/browser/extensions/extension_function_dispatcher.h"
 #include "chrome/browser/extensions/extension_tabs_module_constants.h"
 #include "chrome/browser/extensions/extensions_service.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/renderer_host/backing_store.h"
 #include "chrome/browser/renderer_host/render_view_host.h"
 #include "chrome/browser/renderer_host/render_view_host_delegate.h"
 #include "chrome/browser/tab_contents/navigation_entry.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/browser/window_sizer.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_error_utils.h"
 #include "chrome/common/url_constants.h"
 #include "net/base/base64.h"
 #include "skia/ext/image_operations.h"
 #include "skia/ext/platform_canvas.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
-
 namespace keys = extension_tabs_module_constants;
 
 // Forward declare static helper functions defined below.
 
 // |error_message| can optionally be passed in a will be set with an appropriate
 // message if the window cannot be found by id.
 static Browser* GetBrowserInProfileWithId(Profile* profile,
                                           const int window_id,
                                           std::string* error_message);
 
@@ skipping 109 matching lines @@
   result->SetInteger(keys::kWidthKey, bounds.width());
   result->SetInteger(keys::kHeightKey, bounds.height());
 
   if (populate_tabs) {
     result->Set(keys::kTabsKey, ExtensionTabUtil::CreateTabList(browser));
   }
 
   return result;
 }
 
+bool ExtensionTabUtil::GetDefaultTab(Browser* browser, TabContents** contents,
+                                     int* tab_id) {
+  DCHECK(browser);
+  DCHECK(contents);
+  DCHECK(tab_id);
+
+  *contents = browser->tabstrip_model()->GetSelectedTabContents();
+  if (*contents) {
+    if (tab_id)
+      *tab_id = ExtensionTabUtil::GetTabId(*contents);
+    return true;
+  }
+
+  return false;
+}
+
 bool ExtensionTabUtil::GetTabById(int tab_id, Profile* profile,
                                   Browser** browser,
                                   TabStripModel** tab_strip,
                                   TabContents** contents,
                                   int* tab_index) {
   Browser* target_browser;
   TabStripModel* target_tab_strip;
   TabContents* target_contents;
   for (BrowserList::const_iterator iter = BrowserList::begin();
        iter != BrowserList::end(); ++iter) {
@@ skipping 499 matching lines @@
   }
 
   // Perform a simple within-window move.
   // Clamp move location to the last position.
   // This is ">=" because the move must be to an existing location.
   if (new_index >= source_tab_strip->count())
     new_index = source_tab_strip->count() - 1;
 
   if (new_index != tab_index)
     source_tab_strip->MoveTabContentsAt(tab_index, new_index, false);
-  
+
   if (has_callback())
     result_.reset(ExtensionTabUtil::CreateTabValue(contents, source_tab_strip,
         new_index));
   return true;
 }
 
 
 bool RemoveTabFunction::RunImpl() {
   int tab_id;
   EXTENSION_FUNCTION_VALIDATE(args_->GetAsInteger(&tab_id));
@@ skipping 178 matching lines @@
   if (ExtensionTabUtil::GetTabById(tab_id, profile, browser, tab_strip,
                                    contents, tab_index))
     return true;
 
   if (error_message)
     *error_message = ExtensionErrorUtils::FormatErrorMessage(
         keys::kTabNotFoundError, IntToString(tab_id));
 
   return false;
 }