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// 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 CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_POPUP_CONTROLLER_IMPL_H_
#define CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_POPUP_CONTROLLER_IMPL_H_
#include "base/gtest_prod_util.h"
#include "base/i18n/rtl.h"
#include "base/memory/weak_ptr.h"
#include "base/strings/string16.h"
#include "chrome/browser/ui/autofill/autofill_popup_controller.h"
#include "chrome/browser/ui/autofill/popup_controller_common.h"
#include "ui/gfx/font_list.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/rect_f.h"
namespace autofill {
class AutofillPopupDelegate;
class AutofillPopupView;
// This class is a controller for an AutofillPopupView. It implements
// AutofillPopupController to allow calls from AutofillPopupView. The
// other, public functions are available to its instantiator.
class AutofillPopupControllerImpl : public AutofillPopupController {
public:
// Creates a new |AutofillPopupControllerImpl|, or reuses |previous| if the
// construction arguments are the same. |previous| may be invalidated by this
// call. The controller will listen for keyboard input routed to
// |web_contents| while the popup is showing, unless |web_contents| is NULL.
static base::WeakPtr<AutofillPopupControllerImpl> GetOrCreate(
base::WeakPtr<AutofillPopupControllerImpl> previous,
base::WeakPtr<AutofillPopupDelegate> delegate,
content::WebContents* web_contents,
gfx::NativeView container_view,
const gfx::RectF& element_bounds,
base::i18n::TextDirection text_direction);
// Shows the popup, or updates the existing popup with the given values.
void Show(const std::vector<autofill::Suggestion>& suggestions);
// Updates the data list values currently shown with the popup.
void UpdateDataListValues(const std::vector<base::string16>& values,
const std::vector<base::string16>& labels);
// Hides the popup and destroys the controller. This also invalidates
// |delegate_|.
void Hide() override;
// Invoked when the view was destroyed by by someone other than this class.
void ViewDestroyed() override;
bool HandleKeyPressEvent(const content::NativeWebKeyboardEvent& event);
// Tells the view to capture mouse events. Must be called before |Show()|.
void set_hide_on_outside_click(bool hide_on_outside_click);
protected:
FRIEND_TEST_ALL_PREFIXES(AutofillExternalDelegateBrowserTest,
CloseWidgetAndNoLeaking);
FRIEND_TEST_ALL_PREFIXES(AutofillPopupControllerUnitTest,
ProperlyResetController);
AutofillPopupControllerImpl(base::WeakPtr<AutofillPopupDelegate> delegate,
content::WebContents* web_contents,
gfx::NativeView container_view,
const gfx::RectF& element_bounds,
base::i18n::TextDirection text_direction);
~AutofillPopupControllerImpl() override;
// AutofillPopupController implementation.
void UpdateBoundsAndRedrawPopup() override;
void SetSelectionAtPoint(const gfx::Point& point) override;
bool AcceptSelectedLine() override;
void SelectionCleared() override;
void AcceptSuggestion(size_t index) override;
int GetIconResourceID(const base::string16& resource_name) const override;
bool CanDelete(size_t index) const override;
bool IsWarning(size_t index) const override;
gfx::Rect GetRowBounds(size_t index) override;
void SetPopupBounds(const gfx::Rect& bounds) override;
const gfx::Rect& popup_bounds() const override;
gfx::NativeView container_view() override;
const gfx::RectF& element_bounds() const override;
bool IsRTL() const override;
size_t GetLineCount() const override;
const autofill::Suggestion& GetSuggestionAt(size_t row) const override;
const base::string16& GetElidedValueAt(size_t row) const override;
const base::string16& GetElidedLabelAt(size_t row) const override;
#if !defined(OS_ANDROID)
const gfx::FontList& GetValueFontListForRow(size_t index) const override;
const gfx::FontList& GetLabelFontList() const override;
#endif
int selected_line() const override;
content::WebContents* web_contents();
// Change which line is currently selected by the user.
void SetSelectedLine(int selected_line);
// Increase the selected line by 1, properly handling wrapping.
void SelectNextLine();
// Decrease the selected line by 1, properly handling wrapping.
void SelectPreviousLine();
// The user has removed a suggestion.
bool RemoveSelectedLine();
// Convert a y-coordinate to the closest line.
int LineFromY(int y);
// Returns the height of a row depending on its type.
int GetRowHeightFromId(int identifier) const;
// Returns true if the given id refers to an element that can be accepted.
bool CanAccept(int id);
// Returns true if the popup still has non-options entries to show the user.
bool HasSuggestions();
// Set the Autofill entry values. Exposed to allow tests to set these values
// without showing the popup.
void SetValues(const std::vector<autofill::Suggestion>& suggestions);
AutofillPopupView* view() { return view_; }
// |view_| pass throughs (virtual for testing).
virtual void ShowView();
virtual void InvalidateRow(size_t row);
// Protected so tests can access.
#if !defined(OS_ANDROID)
// Calculates the desired width of the popup based on its contents.
int GetDesiredPopupWidth() const;
// Calculates the desired height of the popup based on its contents.
int GetDesiredPopupHeight() const;
// Calculate the width of the row, excluding all the text. This provides
// the size of the row that won't be reducible (since all the text can be
// elided if there isn't enough space).
int RowWidthWithoutText(int row) const;
#endif
base::WeakPtr<AutofillPopupControllerImpl> GetWeakPtr();
// Contains common popup functionality such as popup layout. Protected for
// testing.
scoped_ptr<PopupControllerCommon> controller_common_;
private:
// Clear the internal state of the controller. This is needed to ensure that
// when the popup is reused it doesn't leak values between uses.
void ClearState();
#if !defined(OS_ANDROID)
// Calculates and sets the bounds of the popup, including placing it properly
// to prevent it from going off the screen.
void UpdatePopupBounds();
#endif
AutofillPopupView* view_; // Weak reference.
base::WeakPtr<AutofillPopupDelegate> delegate_;
// The bounds of the Autofill popup.
gfx::Rect popup_bounds_;
// The text direction of the popup.
base::i18n::TextDirection text_direction_;
// The current Autofill query values.
std::vector<autofill::Suggestion> suggestions_;
// Elided values and labels corresponding to the suggestions_ vector to
// ensure that it fits on the screen.
std::vector<base::string16> elided_values_;
std::vector<base::string16> elided_labels_;
#if !defined(OS_ANDROID)
// The fonts for the popup text.
gfx::FontList value_font_list_;
gfx::FontList label_font_list_;
gfx::FontList warning_font_list_;
gfx::FontList title_font_list_;
#endif
// The line that is currently selected by the user.
// |kNoSelection| indicates that no line is currently selected.
int selected_line_;
base::WeakPtrFactory<AutofillPopupControllerImpl> weak_ptr_factory_;
};
} // namespace autofill
#endif // CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_POPUP_CONTROLLER_IMPL_H_
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