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      1 // Copyright (c) 2012 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 "ui/views/debug_utils.h"
      6 
      7 #include <iostream>
      8 
      9 #include "base/logging.h"
     10 #include "base/strings/utf_string_conversions.h"
     11 #include "ui/views/view.h"
     12 
     13 namespace views {
     14 namespace {
     15 void PrintViewHierarchyImp(const View* view,
     16                            int indent,
     17                            std::wostringstream* out) {
     18   int ind = indent;
     19   while (ind-- > 0)
     20     *out << L' ';
     21   *out << UTF8ToWide(view->GetClassName());
     22   *out << L' ';
     23   *out << view->id();
     24   *out << L' ';
     25   *out << view->x() << L"," << view->y() << L",";
     26   *out << view->bounds().right() << L"," << view->bounds().bottom();
     27   *out << L' ';
     28   *out << view;
     29   *out << L'\n';
     30 
     31   for (int i = 0, count = view->child_count(); i < count; ++i)
     32     PrintViewHierarchyImp(view->child_at(i), indent + 2, out);
     33 }
     34 
     35 void PrintFocusHierarchyImp(const View* view,
     36                             int indent,
     37                             std::wostringstream* out) {
     38   int ind = indent;
     39   while (ind-- > 0)
     40     *out << L' ';
     41   *out << UTF8ToWide(view->GetClassName());
     42   *out << L' ';
     43   *out << view->id();
     44   *out << L' ';
     45   *out << view->GetClassName();
     46   *out << L' ';
     47   *out << view;
     48   *out << L'\n';
     49 
     50   if (view->child_count() > 0)
     51     PrintFocusHierarchyImp(view->child_at(0), indent + 2, out);
     52 
     53   const View* next_focusable = view->GetNextFocusableView();
     54   if (next_focusable)
     55     PrintFocusHierarchyImp(next_focusable, indent, out);
     56 }
     57 }  // namespace
     58 
     59 void PrintViewHierarchy(const View* view) {
     60   std::wostringstream out;
     61   out << L"View hierarchy:\n";
     62   PrintViewHierarchyImp(view, 0, &out);
     63   // Error so users in the field can generate and upload logs.
     64   LOG(ERROR) << out.str();
     65 }
     66 
     67 void PrintFocusHierarchy(const View* view) {
     68   std::wostringstream out;
     69   out << L"Focus hierarchy:\n";
     70   PrintFocusHierarchyImp(view, 0, &out);
     71   // Error so users in the field can generate and upload logs.
     72   LOG(ERROR) << out.str();
     73 }
     74 
     75 }  // namespace views
     76