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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "ui/views/examples/example_base.h" | 5 #include "ui/views/examples/example_base.h" |
| 6 | 6 |
| 7 #include <stdarg.h> | 7 #include <stdarg.h> |
| 8 | 8 |
| 9 #include "base/compiler_specific.h" | 9 #include "base/compiler_specific.h" |
| 10 #include "base/stringprintf.h" | 10 #include "base/stringprintf.h" |
| 11 #include "ui/views/examples/examples_main.h" | 11 #include "ui/views/examples/examples_window.h" |
| 12 #include "views/view.h" |
| 13 |
| 14 namespace views { |
| 15 namespace examples { |
| 16 |
| 17 // Logs the specified string to the status area of the examples window. |
| 18 // This function can only be called if there is a visible examples window. |
| 19 void LogStatus(const std::string& status); |
| 12 | 20 |
| 13 namespace { | 21 namespace { |
| 14 | 22 |
| 15 // Some of GTK based view classes require NativeWidgetGtk in the view | 23 // Some of GTK based view classes require NativeWidgetGtk in the view |
| 16 // parent chain. This class is used to defer the creation of such | 24 // parent chain. This class is used to defer the creation of such |
| 17 // views until a NativeWidgetGtk is added to the view hierarchy. | 25 // views until a NativeWidgetGtk is added to the view hierarchy. |
| 18 class ContainerView : public views::View { | 26 class ContainerView : public View { |
| 19 public: | 27 public: |
| 20 explicit ContainerView(examples::ExampleBase* base) | 28 explicit ContainerView(examples::ExampleBase* base) |
| 21 : example_view_created_(false), | 29 : example_view_created_(false), |
| 22 example_base_(base) { | 30 example_base_(base) { |
| 23 } | 31 } |
| 24 | 32 |
| 25 private: | 33 private: |
| 26 // Overridden from views::View: | 34 // Overridden from View: |
| 27 virtual void ViewHierarchyChanged(bool is_add, | 35 virtual void ViewHierarchyChanged(bool is_add, |
| 28 views::View* parent, | 36 View* parent, |
| 29 views::View* child) OVERRIDE { | 37 View* child) OVERRIDE { |
| 30 views::View::ViewHierarchyChanged(is_add, parent, child); | 38 View::ViewHierarchyChanged(is_add, parent, child); |
| 31 // We're not using child == this because a Widget may not be | 39 // We're not using child == this because a Widget may not be |
| 32 // availalbe when this is added to the hierarchy. | 40 // available when this is added to the hierarchy. |
| 33 if (is_add && GetWidget() && !example_view_created_) { | 41 if (is_add && GetWidget() && !example_view_created_) { |
| 34 example_view_created_ = true; | 42 example_view_created_ = true; |
| 35 example_base_->CreateExampleView(this); | 43 example_base_->CreateExampleView(this); |
| 36 } | 44 } |
| 37 } | 45 } |
| 38 | 46 |
| 39 // True if the example view has already been created, or false otherwise. | 47 // True if the example view has already been created, or false otherwise. |
| 40 bool example_view_created_; | 48 bool example_view_created_; |
| 41 | 49 |
| 42 examples::ExampleBase* example_base_; | 50 examples::ExampleBase* example_base_; |
| 43 | 51 |
| 44 DISALLOW_COPY_AND_ASSIGN(ContainerView); | 52 DISALLOW_COPY_AND_ASSIGN(ContainerView); |
| 45 }; | 53 }; |
| 46 | 54 |
| 47 } // namespace | 55 } // namespace |
| 48 | 56 |
| 49 namespace examples { | |
| 50 | |
| 51 ExampleBase::~ExampleBase() {} | 57 ExampleBase::~ExampleBase() {} |
| 52 | 58 |
| 53 ExampleBase::ExampleBase(ExamplesMain* main, const char* title) | 59 ExampleBase::ExampleBase(const char* title) : example_title_(title) { |
| 54 : main_(main), example_title_(title) { | |
| 55 container_ = new ContainerView(this); | 60 container_ = new ContainerView(this); |
| 56 } | 61 } |
| 57 | 62 |
| 58 // Prints a message in the status area, at the bottom of the window. | 63 // Prints a message in the status area, at the bottom of the window. |
| 59 void ExampleBase::PrintStatus(const char* format, ...) { | 64 void ExampleBase::PrintStatus(const char* format, ...) { |
| 60 va_list ap; | 65 va_list ap; |
| 61 va_start(ap, format); | 66 va_start(ap, format); |
| 62 std::string msg; | 67 std::string msg; |
| 63 base::StringAppendV(&msg, format, ap); | 68 base::StringAppendV(&msg, format, ap); |
| 64 main_->SetStatus(msg); | 69 LogStatus(msg); |
| 65 } | 70 } |
| 66 | 71 |
| 67 } // namespace examples | 72 } // namespace examples |
| 73 } // namespace views |
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