| // Copyright 2016 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_SHEET_CONTROLLER_H_ |
| #define CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_SHEET_CONTROLLER_H_ |
| |
| #include <memory> |
| |
| #include "base/memory/raw_ptr.h" |
| #include "base/memory/weak_ptr.h" |
| #include "chrome/browser/ui/views/payments/payment_request_dialog_view_ids.h" |
| #include "ui/views/controls/button/button.h" |
| |
| namespace views { |
| class MdTextButton; |
| class View; |
| } |
| |
| namespace payments { |
| |
| class PaymentRequestDialogView; |
| class PaymentRequestSpec; |
| class PaymentRequestState; |
| |
| // The base class for objects responsible for the creation and event handling in |
| // views shown in the PaymentRequestDialog. |
| class PaymentRequestSheetController { |
| public: |
| using ButtonCallback = base::RepeatingClosure; |
| |
| // Objects of this class are owned by |dialog|, so it's a non-owned pointer |
| // that should be valid throughout this object's lifetime. |
| // |state| and |spec| are also not owned by this and are guaranteed to outlive |
| // dialog. Neither |state|, |spec| or |dialog| should be null. |
| PaymentRequestSheetController(base::WeakPtr<PaymentRequestSpec> spec, |
| base::WeakPtr<PaymentRequestState> state, |
| base::WeakPtr<PaymentRequestDialogView> dialog); |
| |
| PaymentRequestSheetController(const PaymentRequestSheetController&) = delete; |
| PaymentRequestSheetController& operator=( |
| const PaymentRequestSheetController&) = delete; |
| |
| virtual ~PaymentRequestSheetController(); |
| |
| // Creates a view to be displayed in the PaymentRequestDialog. The header view |
| // is the view displayed on top of the dialog, containing title, (optional) |
| // back button, and close buttons. |
| // The content view is displayed between the header view and the pay/cancel |
| // buttons. Also adds the footer, returned by CreateFooterView(), which is |
| // clamped to the bottom of the containing view. The returned view takes |
| // ownership of the header, the content, and the footer. |
| // +---------------------------+ |
| // | HEADER VIEW | |
| // +---------------------------+ |
| // | CONTENT | |
| // | VIEW | |
| // +---------------------------+ |
| // | EXTRA VIEW | PAY | CANCEL | <-- footer |
| // +---------------------------+ |
| std::unique_ptr<views::View> CreateView(); |
| |
| base::WeakPtr<PaymentRequestSpec> spec() { return spec_; } |
| base::WeakPtr<PaymentRequestState> state() { return state_; } |
| |
| // The dialog that contains and owns this object. |
| // Caller should not take ownership of the result. |
| base::WeakPtr<PaymentRequestDialogView> dialog() { return dialog_; } |
| |
| // Returns the title to be displayed in this sheet's header. |
| virtual std::u16string GetSheetTitle() = 0; |
| |
| // Stops the controller from controlling the UI. Used when the UI is being |
| // destroyed. |
| void Stop() { is_active_ = false; } |
| |
| // Called when the back button is pressed on the dialog. |
| void BackButtonPressed(); |
| |
| protected: |
| // Clears the content part of the view represented by this view controller and |
| // calls FillContentView again to re-populate it with updated views. |
| void UpdateContentView(); |
| |
| // Clears and recreates the header view for this sheet. |
| void UpdateHeaderView(); |
| |
| // Update the focus to |focused_view|. |
| void UpdateFocus(views::View* focused_view); |
| |
| // View controllers should call this if they have modified some layout aspect |
| // (e.g., made it taller or shorter), and want to relayout the whole pane. |
| void RelayoutPane(); |
| |
| // Methods that control the appearance and behavior of the primary dialog |
| // button. By default the dialog shows a "pay" button. |
| virtual bool ShouldShowPrimaryButton(); |
| virtual std::u16string GetPrimaryButtonLabel(); |
| virtual ButtonCallback GetPrimaryButtonCallback(); |
| virtual int GetPrimaryButtonId(); |
| virtual bool GetPrimaryButtonEnabled(); |
| |
| // Methods that control the appearance and behavior of the secondary dialog |
| // button. By default the dialog shows a "cancel payment" button. |
| virtual bool ShouldShowSecondaryButton(); |
| virtual std::u16string GetSecondaryButtonLabel(); |
| virtual ButtonCallback GetSecondaryButtonCallback(); |
| virtual int GetSecondaryButtonId(); |
| |
| // Returns whether this sheet should display a back arrow in the header next |
| // to the title. |
| virtual bool ShouldShowHeaderBackArrow(); |
| |
| // Implemented by subclasses to populate |content_view| with the views that |
| // should be displayed in their content area (between the header and the |
| // footer). This may be called at view creation time as well as anytime |
| // UpdateContentView is called. |
| virtual void FillContentView(views::View* content_view) = 0; |
| |
| // Creates and returns the view to be displayed next to the "Pay" and "Cancel" |
| // buttons. May return an empty std::unique_ptr (nullptr) to indicate that no |
| // extra view is to be displayed.The caller takes ownership of the view but |
| // the view is guaranteed to be outlived by the controller so subclasses may |
| // retain a raw pointer to the returned view (for example to control its |
| // enabled state). The horizontal and vertical insets (to the left and bottom |
| // borders) is taken care of by the caller, so can be set to 0. |
| // +---------------------------+ |
| // | EXTRA VIEW | PAY | CANCEL | |
| // +---------------------------+ |
| virtual std::unique_ptr<views::View> CreateExtraFooterView(); |
| |
| // Creates and returns a header for all the sheets in the PaymentRequest |
| // dialog. The header contains an optional back arrow button (if |
| // |ShouldShowHeaderBackArrow| returns true) and a content view created by |
| // |CreateHeaderContentView|. The background is set based on |
| // |GetHeaderBackground|, and its color is used to decide which color to use |
| // to paint the arrow. |
| // |
| // The passed-in `view` must be the `header_view_` - it is only passed as an |
| // argument because this is required by ViewFactory. |
| // |
| // +---------------------------+ |
| // | <- | header_content_view | |
| // +---------------------------+ |
| virtual void PopulateSheetHeaderView(views::View* view); |
| |
| // Creates and returns the view to be inserted in the header, next to the |
| // close/back button. This is typically the sheet's title but it can be |
| // overriden to return a different kind of view as long as it fits inside the |
| // header. |
| // |
| // TODO(crbug.com/1385136): Remove once minimal PaymentHandler UX rolls out |
| // and this override is no longer needed. |
| virtual std::unique_ptr<views::View> CreateHeaderContentView( |
| views::View* header_view); |
| |
| // Returns the background to use for the header section of the sheet. |
| // |
| // TODO(crbug.com/1385136): Remove once minimal PaymentHandler UX rolls out |
| // and this override is no longer needed. |
| virtual std::unique_ptr<views::Background> GetHeaderBackground( |
| views::View* header_view); |
| |
| // Creates the row of button containing the Pay, cancel, and extra buttons. |
| // |controller| is installed as the listener for button events. |
| std::unique_ptr<views::View> CreateFooterView(); |
| |
| // Returns the view that should be initially focused on this sheet. Typically, |
| // this returns the primary button if it's enabled or the secondary button |
| // otherwise. Subclasses may return a different view if they need focus to |
| // start off on a different view (a textfield for example). This will only be |
| // called after the view has been completely created through calls to |
| // CreatePaymentView and related functions. |
| virtual views::View* GetFirstFocusedView(); |
| |
| // Returns true if the subclass wants the content sheet to have an id, and |
| // sets |sheet_id| to the desired value. |
| virtual bool GetSheetId(DialogViewID* sheet_id); |
| |
| // Returns true to display dynamic top and bottom border for hidden contents. |
| virtual bool DisplayDynamicBorderForHiddenContents(); |
| |
| // Returns true if the subclass wants the 'Enter' key to be accelerated to |
| // always map to performing the primary button action (irregardless of the |
| // currently focused element). If a subclass returns true for this, it must |
| // also return true for ShouldShowPrimaryButton. |
| virtual bool ShouldAccelerateEnterKey(); |
| |
| void CloseButtonPressed(); |
| |
| views::MdTextButton* primary_button() { return primary_button_; } |
| |
| views::View* header_content_separator_container() { |
| return header_content_separator_container_; |
| } |
| |
| views::View* content_view() { return content_view_; } |
| |
| // Returns whether the controller should be controlling the UI. |
| bool is_active() const { return is_active_; } |
| |
| base::WeakPtr<PaymentRequestSheetController> GetWeakPtr() { |
| return weak_ptr_factory_.GetWeakPtr(); |
| } |
| |
| private: |
| // Add the primary/secondary buttons to |container|. |
| void AddPrimaryButton(views::View* container); |
| void AddSecondaryButton(views::View* container); |
| |
| // Called when the Enter accelerator is pressed. Perform the action associated |
| // with the primary button and sets |is_enabled| to true if it's enabled, |
| // otherwise sets it to false. The |is_enabled| is an out-param to enable |
| // binding the method with a base::WeakPtr, which prohibits non-void return |
| // values. |
| void PerformPrimaryButtonAction(bool* is_enabled); |
| |
| base::WeakPtr<PaymentRequestSpec> const spec_; |
| base::WeakPtr<PaymentRequestState> const state_; |
| base::WeakPtr<PaymentRequestDialogView> const dialog_; |
| |
| // This view is owned by its encompassing ScrollView. |
| raw_ptr<views::View, DanglingUntriaged> pane_ = nullptr; |
| raw_ptr<views::View, DanglingUntriaged> content_view_ = nullptr; |
| |
| // Hold on to the ScrollView because it must be explicitly laid out in some |
| // cases. |
| raw_ptr<views::ScrollView, DanglingUntriaged> scroll_ = nullptr; |
| |
| // Hold on to the primary and secondary buttons to use them as initial focus |
| // targets when subclasses don't want to focus anything else. |
| raw_ptr<views::MdTextButton, DanglingUntriaged> primary_button_ = nullptr; |
| raw_ptr<views::Button, DanglingUntriaged> secondary_button_ = nullptr; |
| raw_ptr<views::View, DanglingUntriaged> header_view_ = nullptr; |
| raw_ptr<views::View, DanglingUntriaged> header_content_separator_container_ = |
| nullptr; |
| |
| // Whether the controller should be controlling the UI. |
| bool is_active_ = true; |
| |
| base::WeakPtrFactory<PaymentRequestSheetController> weak_ptr_factory_{this}; |
| }; |
| |
| } // namespace payments |
| |
| #endif // CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_SHEET_CONTROLLER_H_ |