| // Copyright (c) 2012 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. |
| |
| #ifndef UI_VIEWS_WINDOW_DIALOG_CLIENT_VIEW_H_ |
| #define UI_VIEWS_WINDOW_DIALOG_CLIENT_VIEW_H_ |
| |
| #include "base/gtest_prod_util.h" |
| #include "base/macros.h" |
| #include "ui/base/ui_base_types.h" |
| #include "ui/views/controls/button/button.h" |
| #include "ui/views/window/client_view.h" |
| |
| namespace views { |
| |
| class DialogDelegate; |
| class LabelButton; |
| class Widget; |
| |
| // DialogClientView provides adornments for a dialog's content view, including |
| // custom-labeled [OK] and [Cancel] buttons with [Enter] and [Esc] accelerators. |
| // The view also displays the delegate's extra view alongside the buttons. The |
| // view appears like below. NOTE: The contents view is not inset on the top or |
| // side client view edges. |
| // +------------------------------+ |
| // | Contents View | |
| // +------------------------------+ |
| // | [Extra View] [OK] [Cancel] | |
| // +------------------------------+ |
| class VIEWS_EXPORT DialogClientView : public ClientView, |
| public ButtonListener { |
| public: |
| DialogClientView(Widget* widget, View* contents_view); |
| ~DialogClientView() override; |
| |
| // Accept or Cancel the dialog. |
| void AcceptWindow(); |
| void CancelWindow(); |
| |
| // Accessors in case the user wishes to adjust these buttons. |
| LabelButton* ok_button() const { return ok_button_; } |
| LabelButton* cancel_button() const { return cancel_button_; } |
| |
| // Update the dialog buttons to match the dialog's delegate. |
| void UpdateDialogButtons(); |
| |
| // ClientView implementation: |
| bool CanClose() override; |
| DialogClientView* AsDialogClientView() override; |
| const DialogClientView* AsDialogClientView() const override; |
| |
| // View implementation: |
| gfx::Size GetPreferredSize() const override; |
| void Layout() override; |
| bool AcceleratorPressed(const ui::Accelerator& accelerator) override; |
| void ViewHierarchyChanged( |
| const ViewHierarchyChangedDetails& details) override; |
| void OnNativeThemeChanged(const ui::NativeTheme* theme) override; |
| |
| // ButtonListener implementation: |
| void ButtonPressed(Button* sender, const ui::Event& event) override; |
| |
| void set_button_row_insets(const gfx::Insets& insets) { |
| button_row_insets_ = insets; |
| } |
| |
| protected: |
| // For testing. |
| explicit DialogClientView(View* contents_view); |
| |
| // Returns the DialogDelegate for the window. Virtual for testing. |
| virtual DialogDelegate* GetDialogDelegate() const; |
| |
| // Create and add the extra view, if supplied by the delegate. |
| void CreateExtraView(); |
| |
| // View implementation. |
| void ChildPreferredSizeChanged(View* child) override; |
| void ChildVisibilityChanged(View* child) override; |
| |
| private: |
| bool has_dialog_buttons() const { return ok_button_ || cancel_button_; } |
| |
| // Create a dialog button of the appropriate type. |
| LabelButton* CreateDialogButton(ui::DialogButton type); |
| |
| // Update |button|'s text and enabled state according to the delegate's state. |
| void UpdateButton(LabelButton* button, ui::DialogButton type); |
| |
| // Returns the height of the buttons. |
| int GetButtonHeight() const; |
| |
| // Returns the height of the extra view. |
| int GetExtraViewHeight() const; |
| |
| // Returns the height of the row containing the buttons and the extra view. |
| int GetButtonsAndExtraViewRowHeight() const; |
| |
| // Returns the insets for the buttons and extra view. |
| gfx::Insets GetButtonRowInsets() const; |
| |
| // How much to inset the button row. |
| gfx::Insets button_row_insets_; |
| |
| // Sets up the focus chain for the child views. This is required since the |
| // delegate may choose to add/remove views at any time. |
| void SetupFocusChain(); |
| |
| // The dialog buttons. |
| LabelButton* ok_button_; |
| LabelButton* cancel_button_; |
| |
| // The extra view shown in the row of buttons; may be NULL. |
| View* extra_view_; |
| |
| // True if we've notified the delegate the window is closing and the delegate |
| // allowed the close. In some situations it's possible to get two closes (see |
| // http://crbug.com/71940). This is used to avoid notifying the delegate |
| // twice, which can have bad consequences. |
| bool delegate_allowed_close_; |
| |
| DISALLOW_COPY_AND_ASSIGN(DialogClientView); |
| }; |
| |
| } // namespace views |
| |
| #endif // UI_VIEWS_WINDOW_DIALOG_CLIENT_VIEW_H_ |