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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef CHROME_BROWSER_FIND_IN_PAGE_VIEW_H__
#define CHROME_BROWSER_FIND_IN_PAGE_VIEW_H__
#include "base/gfx/size.h"
#include "chrome/views/button.h"
#include "chrome/views/text_field.h"
class FindInPageController;
namespace ChromeViews {
class Label;
class MouseEvent;
class View;
}
////////////////////////////////////////////////////////////////////////////////
//
// The FindInPageView is responsible for drawing the UI controls of the
// FindInPage window, the find text box, the 'Find' button and the 'Close'
// button. It communicates the user search words to the FindInPageController.
//
////////////////////////////////////////////////////////////////////////////////
class FindInPageView : public ChromeViews::View,
public ChromeViews::BaseButton::ButtonListener,
public ChromeViews::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').
};
FindInPageView(FindInPageController* controller);
virtual ~FindInPageView();
// Updates the UI to show how many matches were found on the page/frames.
// This function does nothing if |number_of_matches| is below 0, which can
// happen during a FindNext operation when a scoping effort is already in
// progress. |final_update| specifies whether this is the last update message
// this Find operation will produce or if this is just a preliminary report.
void UpdateMatchCount(int number_of_matches, bool final_update);
// Notifies the view of the ordinal for the currently active item on the page.
void UpdateActiveMatchOrdinal(int ordinal);
// Updates the label inside the Find text box that shows the ordinal of the
// active item and how many matches were found.
void UpdateResultLabel();
// Resets the UI element that shows how many matches were found.
void ResetMatchCount();
// Resets the background for the match count label.
void ResetMatchCountBackground();
// View needs to respond to Show to set focus to the find text box
void OnShow();
// Updates the view to let it know where the controller is clipping the
// Find window (while animating the opening or closing of the window).
void animation_offset(int offset) { animation_offset_ = offset; }
// Overridden from ChromeViews::View:
virtual void Paint(ChromeCanvas* canvas);
virtual void Layout();
virtual void DidChangeBounds(const CRect& old_bounds,
const CRect& new_bounds);
virtual void GetPreferredSize(CSize* out);
virtual void ViewHierarchyChanged(bool is_add, View* parent, View* child);
// Overridden from ChromeViews::ButtonListener::ButtonPressed:
virtual void ButtonPressed(ChromeViews::BaseButton* sender);
// Overridden from ChromeViews::TextField::Controller:
virtual void ContentsChanged(ChromeViews::TextField* sender,
const std::wstring& new_contents);
virtual void HandleKeystroke(ChromeViews::TextField* sender, UINT message,
TCHAR key, UINT repeat_count, UINT flags);
// Set whether or not we're attempting to blend with the toolbar.
void SetToolbarBlend(bool toolbar_blend) {toolbar_blend_ = toolbar_blend;}
private:
// 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 ChromeViews::View {
public:
explicit FocusForwarderView(
ChromeViews::TextField* view_to_focus_on_mousedown)
: view_to_focus_on_mousedown_(view_to_focus_on_mousedown) {}
private:
virtual bool OnMousePressed(const ChromeViews::MouseEvent& event);
ChromeViews::TextField* view_to_focus_on_mousedown_;
DISALLOW_EVIL_CONSTRUCTORS(FocusForwarderView);
};
// The controller that maintains the selected model, and performs actions
// such as handling selected items.
FindInPageController* controller_;
// The controls in the window.
ChromeViews::TextField* find_text_;
ChromeViews::Label* match_count_text_;
FocusForwarderView* focus_forwarder_view_;
ChromeViews::Button* find_previous_button_;
ChromeViews::Button* find_next_button_;
ChromeViews::Button* close_button_;
// Whether or not we're attempting to blend with the toolbar (this is
// false if the bookmarks bar is visible).
bool toolbar_blend_;
// While animating, the controller clips the window and draws only the bottom
// part of it. The view needs to know the pixel offset at which we are drawing
// the window so that we can draw the curved edges that attach to the toolbar
// in the right location.
int animation_offset_;
// How many matches were found on the page.
int match_count_;
// The ordinal of the currently active match.
int active_match_ordinal_;
DISALLOW_EVIL_CONSTRUCTORS(FindInPageView);
};
#endif // CHROME_BROWSER_FIND_IN_PAGE_VIEW_H__
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