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// 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/theme_install_bubble_view_gtk.h"
#include <math.h>
#include "app/l10n_util.h"
#include "chrome/browser/gtk/gtk_util.h"
#include "chrome/browser/gtk/rounded_window.h"
#include "chrome/common/notification_service.h"
#include "chrome/common/notification_type.h"
#include "grit/generated_resources.h"
// Roundedness of bubble.
static const int kBubbleCornerRadius = 4;
// Padding between border of bubble and text.
static const int kTextPadding = 8;
// The bubble is partially transparent.
static const double kBubbleOpacity = static_cast<double>(0xcc) / 0xff;
ThemeInstallBubbleViewGtk* ThemeInstallBubbleViewGtk::instance_ = NULL;
// ThemeInstallBubbleViewGtk, public -------------------------------------------
// static
void ThemeInstallBubbleViewGtk::Show(GtkWindow* parent) {
if (instance_)
instance_->increment_num_loading();
else
instance_ = new ThemeInstallBubbleViewGtk(GTK_WIDGET(parent));
}
void ThemeInstallBubbleViewGtk::Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
if (--num_loads_extant_ == 0)
delete this;
}
// ThemeInstallBubbleViewGtk, private ------------------------------------------
ThemeInstallBubbleViewGtk::ThemeInstallBubbleViewGtk(GtkWidget* parent)
: widget_(NULL),
parent_(parent),
num_loads_extant_(1) {
InitWidgets();
// Close when theme has been installed.
registrar_.Add(
this,
NotificationType::BROWSER_THEME_CHANGED,
NotificationService::AllSources());
// Close when we are installing an extension, not a theme.
registrar_.Add(
this,
NotificationType::NO_THEME_DETECTED,
NotificationService::AllSources());
registrar_.Add(
this,
NotificationType::EXTENSION_INSTALLED,
NotificationService::AllSources());
registrar_.Add(
this,
NotificationType::EXTENSION_INSTALL_ERROR,
NotificationService::AllSources());
// Don't let the bubble overlap the confirm dialog.
registrar_.Add(
this,
NotificationType::EXTENSION_WILL_SHOW_CONFIRM_DIALOG,
NotificationService::AllSources());
}
ThemeInstallBubbleViewGtk::~ThemeInstallBubbleViewGtk() {
gtk_widget_destroy(widget_);
instance_ = NULL;
}
void ThemeInstallBubbleViewGtk::InitWidgets() {
// Widgematically, the bubble is just a label in a popup window.
widget_ = gtk_window_new(GTK_WINDOW_POPUP);
gtk_container_set_border_width(GTK_CONTAINER(widget_), kTextPadding);
GtkWidget* label = gtk_label_new(NULL);
gchar* markup = g_markup_printf_escaped(
"<span size='xx-large'>%s</span>",
l10n_util::GetStringUTF8(IDS_THEME_LOADING_TITLE).c_str());
gtk_label_set_markup(GTK_LABEL(label), markup);
g_free(markup);
gtk_widget_modify_fg(label, GTK_STATE_NORMAL, >k_util::kGdkWhite);
gtk_container_add(GTK_CONTAINER(widget_), label);
// We need to show the label so we'll know the widget's actual size when we
// call MoveWindow().
gtk_widget_show_all(label);
bool composited = false;
if (gtk_util::IsScreenComposited()) {
composited = true;
GdkScreen* screen = gtk_widget_get_screen(widget_);
GdkColormap* colormap = gdk_screen_get_rgba_colormap(screen);
if (colormap)
gtk_widget_set_colormap(widget_, colormap);
else
composited = false;
}
if (composited) {
gtk_widget_set_app_paintable(widget_, TRUE);
g_signal_connect(widget_, "expose-event",
G_CALLBACK(HandleExposeEventThunk), this);
gtk_widget_realize(widget_);
} else {
gtk_widget_modify_bg(widget_, GTK_STATE_NORMAL, >k_util::kGdkBlack);
GdkColor color;
gtk_util::ActAsRoundedWindow(widget_, color, kBubbleCornerRadius,
gtk_util::ROUNDED_ALL, gtk_util::BORDER_NONE);
}
MoveWindow();
g_signal_connect(widget_, "unmap-event",
G_CALLBACK(&HandleParentUnmapThunk), this);
gtk_widget_show_all(widget_);
}
void ThemeInstallBubbleViewGtk::MoveWindow() {
GtkRequisition req;
gtk_widget_size_request(widget_, &req);
gint parent_x = 0, parent_y = 0;
gdk_window_get_position(parent_->window, &parent_x, &parent_y);
gint parent_width = parent_->allocation.width;
gint parent_height = parent_->allocation.height;
gint x = parent_x + parent_width / 2 - req.width / 2;
gint y = parent_y + parent_height / 2 - req.height / 2;
gtk_window_move(GTK_WINDOW(widget_), x, y);
}
gboolean ThemeInstallBubbleViewGtk::HandleParentUnmap() {
delete this;
return FALSE;
}
gboolean ThemeInstallBubbleViewGtk::HandleExposeEvent(
GdkEventExpose* event) {
cairo_t* cr = gdk_cairo_create(event->window);
gdk_cairo_rectangle(cr, &event->area);
cairo_clip(cr);
cairo_set_operator(cr, CAIRO_OPERATOR_CLEAR);
cairo_paint(cr);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
// |inner_rect| has its corners at the centerpoints of the corner arcs.
gfx::Rect inner_rect(widget_->allocation);
int inset = kBubbleCornerRadius;
inner_rect.Inset(inset, inset);
// The positive y axis is down, so M_PI_2 is down.
cairo_arc(cr, inner_rect.x(), inner_rect.y(), inset,
M_PI, 3 * M_PI_2);
cairo_arc(cr, inner_rect.right(), inner_rect.y(), inset,
3 * M_PI_2, 0);
cairo_arc(cr, inner_rect.right(), inner_rect.bottom(), inset,
0, M_PI_2);
cairo_arc(cr, inner_rect.x(), inner_rect.bottom(), inset,
M_PI_2, M_PI);
cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, kBubbleOpacity);
cairo_fill(cr);
cairo_destroy(cr);
return FALSE;
}
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