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// Copyright (c) 2010 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/hung_renderer_dialog.h"
#include <gtk/gtk.h>
#include "app/l10n_util.h"
#include "app/resource_bundle.h"
#include "base/process_util.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/browser_list.h"
#include "chrome/browser/gtk/gtk_util.h"
#include "chrome/browser/renderer_host/render_process_host.h"
#include "chrome/browser/renderer_host/render_view_host.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/common/logging_chrome.h"
#include "chrome/common/result_codes.h"
#include "gfx/gtk_util.h"
#include "grit/chromium_strings.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources.h"
namespace {
// A wrapper class that represents the Gtk dialog.
class HungRendererDialogGtk {
public:
HungRendererDialogGtk();
void ShowForTabContents(TabContents* hung_contents);
void EndForTabContents(TabContents* hung_contents);
private:
// The GtkTreeView column ids.
enum {
COL_FAVICON,
COL_TITLE,
COL_COUNT,
};
// Create the gtk dialog and add the widgets.
void Init();
static void OnDialogResponseThunk(GtkDialog* dialog, gint response_id,
HungRendererDialogGtk* dialog_gtk) {
dialog_gtk->OnDialogResponse(response_id);
}
void OnDialogResponse(gint response_id);
GtkDialog* dialog_;
GtkListStore* model_;
TabContents* contents_;
DISALLOW_COPY_AND_ASSIGN(HungRendererDialogGtk);
};
// We only support showing one of these at a time per app.
HungRendererDialogGtk* g_instance = NULL;
// The response ID for the "Kill pages" button. Anything positive should be
// fine (the built in GtkResponseTypes are negative numbers).
const int kKillPagesButtonResponse = 1;
HungRendererDialogGtk::HungRendererDialogGtk()
: dialog_(NULL), model_(NULL), contents_(NULL) {
Init();
}
void HungRendererDialogGtk::Init() {
dialog_ = GTK_DIALOG(gtk_dialog_new_with_buttons(
l10n_util::GetStringUTF8(IDS_BROWSER_HANGMONITOR_RENDERER_TITLE).c_str(),
NULL, // No parent because tabs can span multiple windows.
GTK_DIALOG_NO_SEPARATOR,
l10n_util::GetStringUTF8(IDS_BROWSER_HANGMONITOR_RENDERER_END).c_str(),
kKillPagesButtonResponse,
l10n_util::GetStringUTF8(IDS_BROWSER_HANGMONITOR_RENDERER_WAIT).c_str(),
GTK_RESPONSE_OK,
NULL));
gtk_dialog_set_default_response(dialog_, GTK_RESPONSE_OK);
g_signal_connect(dialog_, "response", G_CALLBACK(OnDialogResponseThunk),
this);
// We have an hbox with the frozen icon on the left. On the right,
// we have a vbox with the unresponsive text on top and a table of
// tabs on bottom.
// ·-----------------------------------·
// |·---------------------------------·|
// ||·----·|·------------------------·||
// |||icon||| |||
// ||·----·|| The folowing page(s).. |||
// || || |||
// || ||------------------------|||
// || || table of tabs |||
// || |·------------------------·||
// |·---------------------------------·|
// | |
// | kill button wait button|
// ·-----------------------------------·
GtkWidget* contents_vbox = dialog_->vbox;
gtk_box_set_spacing(GTK_BOX(contents_vbox), gtk_util::kContentAreaSpacing);
GtkWidget* hbox = gtk_hbox_new(FALSE, 12);
gtk_box_pack_start(GTK_BOX(contents_vbox), hbox, TRUE, TRUE, 0);
// Wrap the icon in a vbox so it stays top aligned.
GtkWidget* icon_vbox = gtk_vbox_new(FALSE, 0);
gtk_box_pack_start(GTK_BOX(hbox), icon_vbox, FALSE, FALSE, 0);
ResourceBundle& rb = ResourceBundle::GetSharedInstance();
GdkPixbuf* icon_pixbuf = rb.GetPixbufNamed(IDR_FROZEN_TAB_ICON);
GtkWidget* icon = gtk_image_new_from_pixbuf(icon_pixbuf);
gtk_box_pack_start(GTK_BOX(icon_vbox), icon, FALSE, FALSE, 0);
GtkWidget* vbox = gtk_vbox_new(FALSE, gtk_util::kControlSpacing);
gtk_box_pack_start(GTK_BOX(hbox), vbox, TRUE, TRUE, 0);
GtkWidget* text = gtk_label_new(
l10n_util::GetStringUTF8(IDS_BROWSER_HANGMONITOR_RENDERER).c_str());
gtk_label_set_line_wrap(GTK_LABEL(text), TRUE);
gtk_box_pack_start(GTK_BOX(vbox), text, FALSE, FALSE, 0);
GtkWidget* scroll_list = gtk_scrolled_window_new(NULL, NULL);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll_list),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll_list),
GTK_SHADOW_ETCHED_IN);
gtk_box_pack_start(GTK_BOX(vbox), scroll_list, TRUE, TRUE, 0);
// The list of hung tabs is GtkTreeView with a GtkListStore as the model.
model_ = gtk_list_store_new(COL_COUNT, GDK_TYPE_PIXBUF, G_TYPE_STRING);
GtkWidget* tree_view = gtk_tree_view_new_with_model(
GTK_TREE_MODEL(model_));
g_object_unref(model_);
gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(tree_view), FALSE);
GtkTreeViewColumn* column = gtk_tree_view_column_new();
GtkCellRenderer* renderer = gtk_cell_renderer_pixbuf_new();
gtk_tree_view_column_pack_start(column, renderer, FALSE);
gtk_tree_view_column_add_attribute(column, renderer, "pixbuf", COL_FAVICON);
renderer = gtk_cell_renderer_text_new();
gtk_tree_view_column_pack_start(column, renderer, TRUE);
gtk_tree_view_column_add_attribute(column, renderer, "text", COL_TITLE);
gtk_tree_view_append_column(GTK_TREE_VIEW(tree_view), column);
gtk_container_add(GTK_CONTAINER(scroll_list), tree_view);
}
void HungRendererDialogGtk::ShowForTabContents(TabContents* hung_contents) {
DCHECK(hung_contents && dialog_);
contents_ = hung_contents;
gtk_list_store_clear(model_);
GtkTreeIter tree_iter;
for (TabContentsIterator it; !it.done(); ++it) {
if (it->GetRenderProcessHost() == hung_contents->GetRenderProcessHost()) {
gtk_list_store_append(model_, &tree_iter);
std::string title = UTF16ToUTF8(it->GetTitle());
if (title.empty())
title = UTF16ToUTF8(TabContents::GetDefaultTitle());
SkBitmap favicon = it->GetFavIcon();
GdkPixbuf* pixbuf = NULL;
if (favicon.width() > 0)
pixbuf = gfx::GdkPixbufFromSkBitmap(&favicon);
gtk_list_store_set(model_, &tree_iter,
COL_FAVICON, pixbuf,
COL_TITLE, title.c_str(),
-1);
if (pixbuf)
g_object_unref(pixbuf);
}
}
gtk_util::ShowDialog(GTK_WIDGET(dialog_));
}
void HungRendererDialogGtk::EndForTabContents(TabContents* contents) {
DCHECK(contents);
if (contents_ && contents_->GetRenderProcessHost() ==
contents->GetRenderProcessHost()) {
gtk_widget_hide(GTK_WIDGET(dialog_));
// Since we're closing, we no longer need this TabContents.
contents_ = NULL;
}
}
// When the user clicks a button on the dialog or closes the dialog, this
// callback is called.
void HungRendererDialogGtk::OnDialogResponse(gint response_id) {
DCHECK(g_instance == this);
switch (response_id) {
case kKillPagesButtonResponse:
// Kill the process.
if (contents_ && contents_->GetRenderProcessHost()) {
base::KillProcess(contents_->GetRenderProcessHost()->GetHandle(),
ResultCodes::HUNG, false);
}
break;
case GTK_RESPONSE_OK:
case GTK_RESPONSE_DELETE_EVENT:
// Start waiting again for responsiveness.
if (contents_ && contents_->render_view_host())
contents_->render_view_host()->RestartHangMonitorTimeout();
break;
default:
NOTREACHED();
}
gtk_widget_destroy(GTK_WIDGET(dialog_));
delete g_instance;
g_instance = NULL;
}
} // namespace
namespace hung_renderer_dialog {
void ShowForTabContents(TabContents* contents) {
if (!logging::DialogsAreSuppressed()) {
if (!g_instance)
g_instance = new HungRendererDialogGtk();
g_instance->ShowForTabContents(contents);
}
}
// static
void HideForTabContents(TabContents* contents) {
if (!logging::DialogsAreSuppressed() && g_instance)
g_instance->EndForTabContents(contents);
}
} // namespace hung_renderer_dialog
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