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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
// Copyright (c) 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.
#include "chrome/browser/gtk/sad_tab_gtk.h"
#include <string>
#include "app/gfx/gtk_util.h"
#include "app/l10n_util.h"
#include "app/resource_bundle.h"
#include "base/lazy_instance.h"
#include "chrome/browser/gtk/gtk_chrome_link_button.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "grit/generated_resources.h"
#include "grit/locale_settings.h"
#include "grit/theme_resources.h"
namespace {
// The y offset from the center at which to paint the icon.
const int kSadTabOffset = -64;
// The spacing between the icon and the title.
const int kIconTitleSpacing = 20;
// The spacing between the title and the message.
const int kTitleMessageSpacing = 15;
const int kMessageLinkSpacing = 15;
const int kTabHorzMargin = 13;
const double kBackgroundColorTop[3] = {
35.0 / 255.0, 48.0 / 255.0, 64.0 / 255.0 };
const double kBackgroundColorBottom[3] = {
35.0 / 255.0, 48.0 / 255.0, 64.0 / 255.0 };
struct SadTabGtkConstants {
SadTabGtkConstants()
: sad_tab_bitmap(
ResourceBundle::GetSharedInstance().GetPixbufNamed(IDR_SAD_TAB)),
title(l10n_util::GetStringUTF8(IDS_SAD_TAB_TITLE)),
message(l10n_util::GetStringUTF8(IDS_SAD_TAB_MESSAGE)),
learn_more_url(l10n_util::GetStringUTF8(IDS_CRASH_REASON_URL)) {}
const GdkPixbuf* sad_tab_bitmap;
std::string title;
std::string message;
std::string learn_more_url;
};
base::LazyInstance<SadTabGtkConstants>
g_sad_tab_constants(base::LINKER_INITIALIZED);
GtkWidget* MakeWhiteMarkupLabel(const char* format, const std::string& str) {
GtkWidget* label = gtk_label_new(NULL);
char* markup = g_markup_printf_escaped(format, str.c_str());
gtk_label_set_markup(GTK_LABEL(label), markup);
g_free(markup);
// Center align and justify it.
gtk_misc_set_alignment(GTK_MISC(label), 0.5, 0.5);
gtk_label_set_justify(GTK_LABEL(label), GTK_JUSTIFY_CENTER);
// Set text to white.
GdkColor white = gfx::kGdkWhite;
gtk_widget_modify_fg(label, GTK_STATE_NORMAL, &white);
return label;
}
} // namespace
SadTabGtk::SadTabGtk(TabContents* tab_contents)
: width_(0),
height_(0),
tab_contents_(tab_contents) {
DCHECK(tab_contents_);
// Use an event box to get the background painting correctly.
event_box_.Own(gtk_event_box_new());
gtk_widget_set_app_paintable(event_box_.get(), TRUE);
g_signal_connect(event_box_.get(), "expose-event",
G_CALLBACK(OnBackgroundExposeThunk), this);
// Listen to signal for resizing of widget.
g_signal_connect(event_box_.get(), "size-allocate",
G_CALLBACK(OnSizeAllocateThunk), this);
// Use an alignment to set the top and horizontal paddings. The padding will
// be set later when we receive expose-event which gives us the width and
// height of the widget.
top_padding_ = gtk_alignment_new(0.0, 0.0, 1.0, 1.0);
gtk_container_add(GTK_CONTAINER(event_box_.get()), top_padding_);
// Use a vertical box to contain icon, title, message and link.
GtkWidget* vbox = gtk_vbox_new(FALSE, 0);
gtk_container_add(GTK_CONTAINER(top_padding_), vbox);
const SadTabGtkConstants& sad_tab_constants = g_sad_tab_constants.Get();
// Add center-aligned image.
GtkWidget* image = gtk_image_new_from_pixbuf(
const_cast<GdkPixbuf*>(sad_tab_constants.sad_tab_bitmap));
gtk_misc_set_alignment(GTK_MISC(image), 0.5, 0.5);
gtk_box_pack_start(GTK_BOX(vbox), image, FALSE, FALSE, kIconTitleSpacing);
// Add center-aligned title.
GtkWidget* title = MakeWhiteMarkupLabel(
"<span size=\"larger\" style=\"normal\"><b>%s</b></span>",
sad_tab_constants.title);
gtk_box_pack_start(GTK_BOX(vbox), title, FALSE, FALSE, kTitleMessageSpacing);
// Add center-aligned message.
message_ = MakeWhiteMarkupLabel("<span style=\"normal\">%s</span>",
sad_tab_constants.message);
gtk_label_set_line_wrap(GTK_LABEL(message_), TRUE);
gtk_box_pack_start(GTK_BOX(vbox), message_, FALSE, FALSE,
kMessageLinkSpacing);
if (tab_contents_ != NULL) {
// Add the learn-more link and center-align it in an alignment.
GtkWidget* link = gtk_chrome_link_button_new(
l10n_util::GetStringUTF8(IDS_LEARN_MORE).c_str());
gtk_chrome_link_button_set_normal_color(GTK_CHROME_LINK_BUTTON(link),
&gfx::kGdkWhite);
g_signal_connect(link, "clicked", G_CALLBACK(OnLinkButtonClickThunk), this);
GtkWidget* link_alignment = gtk_alignment_new(0.5, 0.5, 0.0, 0.0);
gtk_container_add(GTK_CONTAINER(link_alignment), link);
gtk_box_pack_start(GTK_BOX(vbox), link_alignment, FALSE, FALSE, 0);
}
gtk_widget_show_all(event_box_.get());
}
SadTabGtk::~SadTabGtk() {
event_box_.Destroy();
}
gboolean SadTabGtk::OnBackgroundExpose(
GtkWidget* widget, GdkEventExpose* event) {
// Clip to our damage rect.
cairo_t* cr = gdk_cairo_create(GDK_DRAWABLE(event->window));
cairo_rectangle(cr, event->area.x, event->area.y,
event->area.width, event->area.height);
cairo_clip(cr);
// Draw the gradient background.
int half_width = width_ / 2;
cairo_pattern_t* pattern = cairo_pattern_create_linear(
half_width, 0, half_width, height_);
cairo_pattern_add_color_stop_rgb(
pattern, 0.0,
kBackgroundColorTop[0], kBackgroundColorTop[1], kBackgroundColorTop[2]);
cairo_pattern_add_color_stop_rgb(
pattern, 1.0,
kBackgroundColorBottom[0], kBackgroundColorBottom[1],
kBackgroundColorBottom[2]);
cairo_set_source(cr, pattern);
cairo_paint(cr);
cairo_pattern_destroy(pattern);
cairo_destroy(cr);
return FALSE; // Propagate expose event to children.
}
void SadTabGtk::OnSizeAllocate(GtkWidget* widget, GtkAllocation* allocation) {
// Only readjust top and horizontal paddings if height of widget has changed.
if (allocation->height != 0 && allocation->height != height_) {
height_ = allocation->height;
const SadTabGtkConstants& sad_tab_constants = g_sad_tab_constants.Get();
int icon_height = gdk_pixbuf_get_height(sad_tab_constants.sad_tab_bitmap);
int icon_y = ((height_ - icon_height) / 2) + kSadTabOffset;
gtk_alignment_set_padding(GTK_ALIGNMENT(top_padding_), std::max(icon_y, 0),
0, kTabHorzMargin, kTabHorzMargin);
}
// Only readjust width for message if width of widget has changed.
if (allocation->width != 0 && allocation->width != width_) {
width_ = allocation->width;
// If necessary, set width for wrappable message.
int message_width = width_ - (kTabHorzMargin * 2);
if (message_width > -1)
gtk_widget_set_size_request(message_, message_width, -1);
}
}
void SadTabGtk::OnLinkButtonClick() {
if (tab_contents_ != NULL) {
const SadTabGtkConstants& sad_tab_constants = g_sad_tab_constants.Get();
tab_contents_->OpenURL(GURL(sad_tab_constants.learn_more_url.c_str()),
GURL(), CURRENT_TAB, PageTransition::LINK);
}
}
|
