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
|
// Copyright (c) 2012 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.
#include "ui/views/button_drag_utils.h"
#include "base/strings/utf_string_conversions.h"
#include "ui/base/dragdrop/os_exchange_data.h"
#include "ui/base/models/image_model.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/compositor/canvas_painter.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/geometry/point.h"
#include "ui/gfx/geometry/vector2d.h"
#include "ui/gfx/image/image.h"
#include "ui/resources/grit/ui_resources.h"
#include "ui/views/background.h"
#include "ui/views/border.h"
#include "ui/views/controls/button/label_button.h"
#include "ui/views/controls/button/label_button_border.h"
#include "ui/views/drag_utils.h"
#include "ui/views/paint_info.h"
#include "ui/views/widget/widget.h"
#include "url/gurl.h"
namespace button_drag_utils {
// Maximum width of the link drag image in pixels.
static constexpr int kLinkDragImageMaxWidth = 150;
void SetURLAndDragImage(const GURL& url,
const base::string16& title,
const gfx::ImageSkia& icon,
const gfx::Point* press_pt,
const views::Widget& widget,
ui::OSExchangeData* data) {
DCHECK(url.is_valid());
DCHECK(data);
data->SetURL(url, title);
SetDragImage(url, title, icon, press_pt, widget, data);
}
void SetDragImage(const GURL& url,
const base::string16& title,
const gfx::ImageSkia& icon,
const gfx::Point* press_pt,
const views::Widget& widget,
ui::OSExchangeData* data) {
// Create a button to render the drag image for us.
views::LabelButton button(
views::Button::PressedCallback(),
title.empty() ? base::UTF8ToUTF16(url.spec()) : title);
button.SetTextSubpixelRenderingEnabled(false);
const ui::NativeTheme* theme = widget.GetNativeTheme();
button.SetTextColor(
views::Button::STATE_NORMAL,
theme->GetSystemColor(ui::NativeTheme::kColorId_TextfieldDefaultColor));
SkColor bg_color = theme->GetSystemColor(
ui::NativeTheme::kColorId_TextfieldDefaultBackground);
if (widget.IsTranslucentWindowOpacitySupported()) {
button.SetTextShadows(gfx::ShadowValues(
10, gfx::ShadowValue(gfx::Vector2d(0, 0), 2.0f, bg_color)));
} else {
button.SetBackground(views::CreateSolidBackground(bg_color));
button.SetBorder(button.CreateDefaultBorder());
}
button.SetMaxSize(gfx::Size(kLinkDragImageMaxWidth, 0));
if (icon.isNull()) {
button.SetImageModel(views::Button::STATE_NORMAL,
ui::ImageModel::FromResourceId(IDR_DEFAULT_FAVICON));
} else {
button.SetImageModel(views::Button::STATE_NORMAL,
ui::ImageModel::FromImageSkia(icon));
}
gfx::Size size(button.GetPreferredSize());
button.SetBoundsRect(gfx::Rect(size));
gfx::Vector2d press_point;
if (press_pt)
press_point = press_pt->OffsetFromOrigin();
else
press_point = gfx::Vector2d(size.width() / 2, size.height() / 2);
SkBitmap bitmap;
float raster_scale = ScaleFactorForDragFromWidget(&widget);
SkColor color = SK_ColorTRANSPARENT;
button.Paint(views::PaintInfo::CreateRootPaintInfo(
ui::CanvasPainter(&bitmap, size, raster_scale, color,
widget.GetCompositor()->is_pixel_canvas())
.context(),
size));
gfx::ImageSkia image(gfx::ImageSkiaRep(bitmap, raster_scale));
data->provider().SetDragImage(image, press_point);
}
} // namespace button_drag_utils
|
