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Side by Side Diff: views/widget/tooltip_manager.h

Issue 8598031: views: Move widget/ directory to ui/views. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: reland for real Created 9 years, 1 month ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef VIEWS_WIDGET_TOOLTIP_MANAGER_H_
6 #define VIEWS_WIDGET_TOOLTIP_MANAGER_H_
7 #pragma once
8
9 #include <string>
10
11 #include "base/basictypes.h"
12 #include "base/string16.h"
13 #include "views/views_export.h"
14
15 namespace gfx {
16 class Font;
17 } // namespace gfx
18
19 namespace views {
20
21 class View;
22
23 // TooltipManager takes care of the wiring to support tooltips for Views. You
24 // almost never need to interact directly with TooltipManager, rather look to
25 // the various tooltip methods on View.
26 class VIEWS_EXPORT TooltipManager {
27 public:
28 // Returns the height of tooltips. This should only be invoked from within
29 // GetTooltipTextOrigin.
30 static int GetTooltipHeight();
31
32 // Returns the default font used by tooltips.
33 static gfx::Font GetDefaultFont();
34
35 // Returns the maximum width of the tooltip. |x| and |y| give the location
36 // the tooltip is to be displayed on in screen coordinates.
37 static int GetMaxWidth(int x, int y);
38
39 TooltipManager() {}
40 virtual ~TooltipManager() {}
41
42 // Notification that the view hierarchy has changed in some way.
43 virtual void UpdateTooltip() = 0;
44
45 // Invoked when the tooltip text changes for the specified views.
46 virtual void TooltipTextChanged(View* view) = 0;
47
48 // Invoked when toolbar icon gets focus.
49 virtual void ShowKeyboardTooltip(View* view) = 0;
50
51 // Invoked when toolbar loses focus.
52 virtual void HideKeyboardTooltip() = 0;
53
54 protected:
55 // Trims the tooltip to fit, setting |text| to the clipped result,
56 // |max_width| to the width (in pixels) of the clipped text and |line_count|
57 // to the number of lines of text in the tooltip. |x| and |y| give the
58 // location of the tooltip in screen coordinates.
59 static void TrimTooltipToFit(string16* text,
60 int* max_width,
61 int* line_count,
62 int x,
63 int y);
64 };
65
66 } // namespace views
67
68 #endif // VIEWS_WIDGET_TOOLTIP_MANAGER_H_
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