1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
// Copyright (c) 2006-2009 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_VIEWS_FIND_BAR_HOST_H_
#define CHROME_BROWSER_VIEWS_FIND_BAR_HOST_H_
#include "app/animation.h"
#include "app/gfx/native_widget_types.h"
#include "base/gfx/rect.h"
#include "chrome/browser/find_bar.h"
#include "chrome/browser/renderer_host/render_view_host_delegate.h"
#include "chrome/browser/views/dropdown_bar_host.h"
#include "views/controls/textfield/textfield.h"
class BrowserView;
class FindBarController;
class FindBarView;
class FindNotificationDetails;
////////////////////////////////////////////////////////////////////////////////
//
// The FindBarHost implements the container widget for the
// find-in-page functionality. It uses the appropriate implementation from
// find_bar_host_win.cc or find_bar_host_gtk.cc to draw its content and is
// responsible for showing, hiding, closing, and moving the widget if needed,
// for example if the widget is obscuring the selection results. It also
// receives notifications about the search results and communicates that to
// the view.
//
// There is one FindBarHost per BrowserView, and its state is updated
// whenever the selected Tab is changed. The FindBarHost is created when
// the BrowserView is attached to the frame's Widget for the first time.
//
////////////////////////////////////////////////////////////////////////////////
class FindBarHost : public DropdownBarHost,
public FindBar,
public FindBarTesting {
public:
explicit FindBarHost(BrowserView* browser_view);
virtual ~FindBarHost();
// Forwards selected keystrokes to the renderer. This is useful to make sure
// that arrow keys and PageUp and PageDown result in scrolling, instead of
// being eaten because the FindBar has focus. Returns true if the keystroke
// was forwarded, false if not.
bool MaybeForwardKeystrokeToWebpage(
const views::Textfield::Keystroke& key_stroke);
// FindBar implementation:
virtual FindBarController* GetFindBarController() const {
return find_bar_controller_;
}
virtual void SetFindBarController(FindBarController* find_bar_controller) {
find_bar_controller_ = find_bar_controller;
}
virtual void Show();
virtual void Hide(bool animate);
virtual void SetFocusAndSelection();
virtual void ClearResults(const FindNotificationDetails& results);
virtual void StopAnimation();
virtual void MoveWindowIfNecessary(const gfx::Rect& selection_rect,
bool no_redraw);
virtual void SetFindText(const string16& find_text);
virtual void UpdateUIForFindResult(const FindNotificationDetails& result,
const string16& find_text);
virtual void AudibleAlert();
virtual gfx::Rect GetDialogPosition(gfx::Rect avoid_overlapping_rect);
virtual void SetDialogPosition(const gfx::Rect& new_pos, bool no_redraw);
virtual bool IsFindBarVisible();
virtual void RestoreSavedFocus();
virtual FindBarTesting* GetFindBarTesting();
// Overridden from views::AcceleratorTarget in DropdownBarHost class:
virtual bool AcceleratorPressed(const views::Accelerator& accelerator);
// FindBarTesting implementation:
virtual bool GetFindBarWindowInfo(gfx::Point* position,
bool* fully_visible);
private:
// The find bar widget needs rounded edges, so we create a polygon
// that corresponds to the background images for this window (and
// make the polygon only contain the pixels that we want to
// draw). The polygon is then given to SetWindowRgn which changes
// the window from being a rectangle in shape, to being a rect with
// curved edges. We also check to see if the region should be
// truncated to prevent from drawing onto Chrome's window border.
void UpdateWindowEdges(const gfx::Rect& new_pos);
// Allows implementation to tweak widget position.
void GetWidgetPositionNative(gfx::Rect* avoid_overlapping_rect);
// Allows native implementation to prevent keystrokes from being forwarded.
bool ShouldForwardKeystrokeToWebpageNative(
const views::Textfield::Keystroke& key_stroke);
// Returns the FindBarView.
FindBarView* find_bar_view();
// A pointer back to the owning controller.
FindBarController* find_bar_controller_;
DISALLOW_COPY_AND_ASSIGN(FindBarHost);
};
#endif // CHROME_BROWSER_VIEWS_FIND_BAR_HOST_H_
|
