// 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/status_bubble_gtk.h"

#include <gtk/gtk.h>

#include "base/gfx/gtk_util.h"
#include "base/message_loop.h"
#include "base/string_util.h"
#include "chrome/browser/gtk/slide_animator_gtk.h"
#include "chrome/common/gtk_util.h"
#include "googleurl/src/gurl.h"

namespace {

const GdkColor kTextColor = GDK_COLOR_RGB(100, 100, 100);
const GdkColor kBackgroundColor = GDK_COLOR_RGB(0xe6, 0xed, 0xf4);
const GdkColor kFrameBorderColor = GDK_COLOR_RGB(0xbe, 0xc8, 0xd4);

// Inner padding between the border and the text label.
const int kInternalTopBottomPadding = 1;
const int kInternalLeftRightPadding = 2;

// Border of color kFrameBorderColor around the status bubble.
const int kBorderPadding = 1;

// Milliseconds before we hide the status bubble widget when you mouseout.
static const int kHideDelay = 250;

}  // namespace

StatusBubbleGtk::StatusBubbleGtk()
    : timer_factory_(this) {
  InitWidgets();
}

StatusBubbleGtk::~StatusBubbleGtk() {
  container_.Destroy();
}

void StatusBubbleGtk::SetStatus(const std::string& status) {
  if (status.empty()) {
    HideInASecond();
    return;
  }

  gtk_label_set_text(GTK_LABEL(label_), status.c_str());

  Show();
}

void StatusBubbleGtk::SetStatus(const std::wstring& status) {
  SetStatus(WideToUTF8(status));
}

void StatusBubbleGtk::SetURL(const GURL& url, const std::wstring& languages) {
  SetStatus(url.possibly_invalid_spec());
}

void StatusBubbleGtk::Show() {
  // If we were going to hide, stop.
  timer_factory_.RevokeAll();

  gtk_widget_show_all(container_.get());

  if (container_->window)
    gdk_window_raise(container_->window);
}

void StatusBubbleGtk::Hide() {
  gtk_widget_hide_all(container_.get());
}

void StatusBubbleGtk::HideInASecond() {
  if (!timer_factory_.empty())
    timer_factory_.RevokeAll();

  MessageLoop::current()->PostDelayedTask(FROM_HERE,
      timer_factory_.NewRunnableMethod(&StatusBubbleGtk::Hide),
      kHideDelay);
}

void StatusBubbleGtk::MouseMoved() {
  // We can't do that fancy sliding behaviour where the status bubble slides
  // out of the window because the window manager gets in the way. So totally
  // ignore this message for now.
  //
  // TODO(erg): At least get some sliding behaviour so that it slides out of
  // the way to hide the status bubble on mouseover.
}

void StatusBubbleGtk::InitWidgets() {
  label_ = gtk_label_new(NULL);
  gtk_widget_modify_fg(label_, GTK_STATE_NORMAL, &kTextColor);

  GtkWidget* padding = gtk_alignment_new(0, 0, 1, 1);
  gtk_alignment_set_padding(GTK_ALIGNMENT(padding),
      kInternalTopBottomPadding, kInternalTopBottomPadding,
      kInternalLeftRightPadding, kInternalLeftRightPadding);
  gtk_container_add(GTK_CONTAINER(padding), label_);

  GtkWidget* bg_box = gtk_event_box_new();
  gtk_container_add(GTK_CONTAINER(bg_box), padding);
  gtk_widget_modify_bg(bg_box, GTK_STATE_NORMAL, &kBackgroundColor);

  container_.Own(gtk_util::CreateGtkBorderBin(bg_box, &kFrameBorderColor,
          kBorderPadding, kBorderPadding, kBorderPadding, kBorderPadding));
  gtk_widget_set_name(container_.get(), "status-bubble");
  gtk_widget_set_app_paintable(container_.get(), TRUE);
}