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// Copyright (c) 2011 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_AUTOCOMPLETE_AUTOCOMPLETE_EDIT_VIEW_VIEWS_H_
#define CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_EDIT_VIEW_VIEWS_H_
#pragma once
#include <string>
#include "base/basictypes.h"
#include "base/scoped_ptr.h"
#include "chrome/browser/autocomplete/autocomplete_edit_view.h"
#include "chrome/browser/ui/toolbar/toolbar_model.h"
#include "chrome/common/page_transition_types.h"
#include "content/common/notification_observer.h"
#include "ui/base/range/range.h"
#include "views/controls/textfield/textfield_controller.h"
#include "views/view.h"
#include "webkit/glue/window_open_disposition.h"
class AutocompleteEditController;
class AutocompleteEditModel;
class AutocompletePopupView;
class Profile;
class TabContents;
// Views-implementation of AutocompleteEditView. This is based on
// gtk implementation. The following features are not yet supported.
//
// IME support.
// LTR support.
// Selection behavior.
// Cut,copy and paste behavior.
// Drag and drop behavior.
// URL styles (strikestrough insecure scheme, emphasize host).
// Custom context menu for omnibox.
// Instant.
class AutocompleteEditViewViews : public views::View,
public AutocompleteEditView,
public NotificationObserver,
public views::TextfieldController {
public:
AutocompleteEditViewViews(AutocompleteEditController* controller,
ToolbarModel* toolbar_model,
Profile* profile,
CommandUpdater* command_updater,
bool popup_window_mode,
const views::View* location_bar);
virtual ~AutocompleteEditViewViews();
// Initialize, create the underlying views, etc;
void Init();
// Sets the colors of the text view according to the theme.
void SetBaseColor();
// Called after key even is handled either by HandleKeyEvent or by Textfield.
bool HandleAfterKeyEvent(const views::KeyEvent& event, bool handled);
// Called when KeyRelease event is generated on textfield.
bool HandleKeyReleaseEvent(const views::KeyEvent& event);
// Called when Focus is set/unset on textfield.
void HandleFocusIn();
void HandleFocusOut();
// Implements views::View
virtual bool OnMousePressed(const views::MouseEvent& event);
virtual void Layout();
virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
// Implement the AutocompleteEditView interface.
virtual AutocompleteEditModel* model();
virtual const AutocompleteEditModel* model() const;
virtual void SaveStateToTab(TabContents* tab);
virtual void Update(const TabContents* tab_for_state_restoring);
virtual void OpenURL(const GURL& url,
WindowOpenDisposition disposition,
PageTransition::Type transition,
const GURL& alternate_nav_url,
size_t selected_line,
const string16& keyword);
virtual string16 GetText() const;
virtual bool IsEditingOrEmpty() const;
virtual int GetIcon() const;
virtual void SetUserText(const string16& text);
virtual void SetUserText(const string16& text,
const string16& display_text,
bool update_popup);
virtual void SetWindowTextAndCaretPos(const string16& text,
size_t caret_pos);
virtual void SetForcedQuery();
virtual bool IsSelectAll();
virtual bool DeleteAtEndPressed();
virtual void GetSelectionBounds(string16::size_type* start,
string16::size_type* end);
virtual void SelectAll(bool reversed);
virtual void RevertAll();
virtual void UpdatePopup();
virtual void ClosePopup();
virtual void SetFocus();
virtual void OnTemporaryTextMaybeChanged(const string16& display_text,
bool save_original_selection);
virtual bool OnInlineAutocompleteTextMaybeChanged(
const string16& display_text, size_t user_text_length);
virtual void OnRevertTemporaryText();
virtual void OnBeforePossibleChange();
virtual bool OnAfterPossibleChange();
virtual gfx::NativeView GetNativeView() const;
virtual CommandUpdater* GetCommandUpdater();
virtual void SetInstantSuggestion(const string16& input,
bool animate_to_complete);
virtual string16 GetInstantSuggestion() const;
virtual int TextWidth() const;
virtual bool IsImeComposing() const;
virtual views::View* AddToView(views::View* parent);
virtual int OnPerformDrop(const views::DropTargetEvent& event);
// NotificationObserver:
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details);
// views::TextfieldController:
virtual void ContentsChanged(views::Textfield* sender,
const string16& new_contents);
virtual bool HandleKeyEvent(views::Textfield* sender,
const views::KeyEvent& key_event);
private:
// Return the number of characers in the current buffer.
size_t GetTextLength() const;
// Try to parse the current text as a URL and colorize the components.
void EmphasizeURLComponents();
// Internally invoked whenever the text changes in some way.
void TextChanged();
// Update the field with |text| and set the selection.
void SetTextAndSelectedRange(const string16& text,
const ui::Range& range);
// Returns the selected text.
string16 GetSelectedText() const;
// Selects the text given by |caret| and |end|.
void SelectRange(size_t caret, size_t end);
AutocompletePopupView* CreatePopupView(Profile* profile,
const View* location_bar);
views::Textfield* textfield_;
scoped_ptr<AutocompleteEditModel> model_;
scoped_ptr<AutocompletePopupView> popup_view_;
AutocompleteEditController* controller_;
ToolbarModel* toolbar_model_;
// The object that handles additional command functionality exposed on the
// edit, such as invoking the keyword editor.
CommandUpdater* command_updater_;
// When true, the location bar view is read only and also is has a slightly
// different presentation (smaller font size). This is used for popups.
bool popup_window_mode_;
ToolbarModel::SecurityLevel security_level_;
// Selection at the point where the user started using the
// arrows to move around in the popup.
ui::Range saved_temporary_selection_;
// Tracking state before and after a possible change.
string16 text_before_change_;
ui::Range sel_before_change_;
// TODO(oshima): following flags are copied from gtk implementation.
// It should be possible to refactor this class to simplify flags and
// logic. I'll work on this refactoring once all features are completed.
// Indicates whether the IME changed the text. It's possible for the IME to
// handle a key event but not change the text contents (e.g., when pressing
// shift+del with no selection).
bool text_changed_;
// Was delete pressed?
bool delete_was_pressed_;
// Was the delete key pressed with an empty selection at the end of the edit?
bool delete_at_end_pressed_;
// Indicates if we are handling a key press event.
bool handling_key_press_;
// Indicates if omnibox's content maybe changed by a key press event, so that
// we need to call OnAfterPossibleChange() after handling the event.
// This flag should be set for changes directly caused by a key press event,
// including changes to content text, selection range and preedit string.
// Changes caused by function calls like SetUserText() should not affect this
// flag.
bool content_maybe_changed_by_key_press_;
DISALLOW_COPY_AND_ASSIGN(AutocompleteEditViewViews);
};
#endif // CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_EDIT_VIEW_VIEWS_H_
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