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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_UI_VIEWS_FIND_BAR_VIEW_H_
#define CHROME_BROWSER_UI_VIEWS_FIND_BAR_VIEW_H_
#pragma once
#include "base/string16.h"
#include "chrome/browser/ui/find_bar/find_notification_details.h"
#include "chrome/browser/ui/views/dropdown_bar_view.h"
#include "gfx/size.h"
#include "views/controls/button/button.h"
#include "views/controls/textfield/textfield.h"
class FindBarHost;
namespace views {
class ImageButton;
class Label;
class MouseEvent;
class View;
}
////////////////////////////////////////////////////////////////////////////////
//
// The FindBarView is responsible for drawing the UI controls of the
// FindBar, the find text box, the 'Find' button and the 'Close'
// button. It communicates the user search words to the FindBarHost.
//
////////////////////////////////////////////////////////////////////////////////
class FindBarView : public DropdownBarView,
public views::ButtonListener,
public views::Textfield::Controller {
public:
// A tag denoting which button the user pressed.
enum ButtonTag {
FIND_PREVIOUS_TAG = 0, // The Find Previous button.
FIND_NEXT_TAG, // The Find Next button.
CLOSE_TAG, // The Close button (the 'X').
};
explicit FindBarView(FindBarHost* host);
virtual ~FindBarView();
// Gets/sets the text displayed in the text box.
string16 GetFindText() const;
void SetFindText(const string16& find_text);
// Gets the selected text in the text box.
string16 GetFindSelectedText() const;
// Gets the match count text displayed in the text box.
string16 GetMatchCountText() const;
// Updates the label inside the Find text box that shows the ordinal of the
// active item and how many matches were found.
void UpdateForResult(const FindNotificationDetails& result,
const string16& find_text);
// Clears the current Match Count value in the Find text box.
void ClearMatchCount();
// Claims focus for the text field and selects its contents.
virtual void SetFocusAndSelection(bool select_all);
// Overridden from views::View:
virtual void Paint(gfx::Canvas* canvas);
virtual void Layout();
virtual gfx::Size GetPreferredSize();
virtual void ViewHierarchyChanged(bool is_add,
views::View* parent,
views::View* child);
// Overridden from views::ButtonListener:
virtual void ButtonPressed(views::Button* sender, const views::Event& event);
// Overridden from views::Textfield::Controller:
virtual void ContentsChanged(views::Textfield* sender,
const string16& new_contents);
virtual bool HandleKeyEvent(views::Textfield* sender,
const views::KeyEvent& key_event);
private:
// Update the appearance for the match count label.
void UpdateMatchCountAppearance(bool no_match);
// Overridden from views::View.
virtual void OnThemeChanged();
// We use a hidden view to grab mouse clicks and bring focus to the find
// text box. This is because although the find text box may look like it
// extends all the way to the find button, it only goes as far as to the
// match_count label. The user, however, expects being able to click anywhere
// inside what looks like the find text box (including on or around the
// match_count label) and have focus brought to the find box.
class FocusForwarderView : public views::View {
public:
explicit FocusForwarderView(
views::Textfield* view_to_focus_on_mousedown)
: view_to_focus_on_mousedown_(view_to_focus_on_mousedown) {}
private:
virtual bool OnMousePressed(const views::MouseEvent& event);
views::Textfield* view_to_focus_on_mousedown_;
DISALLOW_COPY_AND_ASSIGN(FocusForwarderView);
};
// A wrapper of views::TextField that allows us to select all text when we
// get focus. Represents the text field where the user enters a search term.
class SearchTextfieldView : public views::Textfield {
public:
SearchTextfieldView();
virtual ~SearchTextfieldView();
virtual void RequestFocus();
private:
DISALLOW_COPY_AND_ASSIGN(SearchTextfieldView);
};
// Returns the OS-specific view for the find bar that acts as an intermediary
// between us and the TabContentsView.
FindBarHost* find_bar_host() const;
#if defined(OS_LINUX)
// In GTK we get changed signals if we programmatically set the text. If we
// don't ignore them we run into problems. For example, switching tabs back
// to one with the find bar visible will cause a search to the next found
// text. Also if the find bar had been visible and then hidden and the user
// switches back, found text will be highlighted again.
bool ignore_contents_changed_;
#endif
// The controls in the window.
SearchTextfieldView* find_text_;
views::Label* match_count_text_;
FocusForwarderView* focus_forwarder_view_;
views::ImageButton* find_previous_button_;
views::ImageButton* find_next_button_;
views::ImageButton* close_button_;
DISALLOW_COPY_AND_ASSIGN(FindBarView);
};
#endif // CHROME_BROWSER_UI_VIEWS_FIND_BAR_VIEW_H_
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