Refactored out JS specific part of modal dialog stack into its own class, exp...

chrome/browser/js_modal_dialog_gtk.cc

+// 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/js_modal_dialog.h"
+
+#include <gtk/gtk.h>
+
+#include "app/l10n_util.h"
+#include "app/message_box_flags.h"
+#include "base/logging.h"
+#include "base/string_util.h"
+#include "chrome/browser/browser_list.h"
+#include "chrome/browser/browser_window.h"
+#include "chrome/browser/tab_contents/tab_contents.h"
+#include "chrome/browser/tab_contents/tab_contents_view.h"
+#include "chrome/common/gtk_util.h"
+#include "grit/generated_resources.h"
+#include "grit/locale_settings.h"
+
+namespace {
+
+// We stash pointers to widgets on the gtk_dialog so we can refer to them
+// after dialog creation.
+const char kPromptTextId[] = "chrome_prompt_text";
+const char kSuppressCheckboxId[] = "chrome_suppress_checkbox";
+
+// If there's a text entry in the dialog, get the text from the first one and
+// return it.
+std::wstring GetPromptText(GtkDialog* dialog) {
+  GtkWidget* widget = static_cast<GtkWidget*>(
+      g_object_get_data(G_OBJECT(dialog), kPromptTextId));
+  if (widget)
+    return UTF8ToWide(gtk_entry_get_text(GTK_ENTRY(widget)));
+  return std::wstring();
+}
+
+// If there's a toggle button in the dialog, return the toggled state.
+// Otherwise, return false.
+bool ShouldSuppressJSDialogs(GtkDialog* dialog) {
+  GtkWidget* widget = static_cast<GtkWidget*>(
+      g_object_get_data(G_OBJECT(dialog), kSuppressCheckboxId));
+  if (widget)
+    return gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget));
+  return false;
+}
+
+}  // namespace
+
+void JavaScriptAppModalDialog::CreateAndShowDialog() {
+  dialog_ = CreateNativeDialog();
+  gtk_widget_show_all(GTK_WIDGET(GTK_DIALOG(dialog_)));
+
+  // Suggest a minimum size.
+  gint width;
+  GtkRequisition req;
+  gtk_widget_size_request(dialog_, &req);
+  gtk_util::GetWidgetSizeFromResources(dialog_, IDS_ALERT_DIALOG_WIDTH_CHARS, 0,
+                                       &width, NULL);
+  if (width > req.width)
+    gtk_widget_set_size_request(dialog_, width, -1);
+}
+
+void JavaScriptAppModalDialog::HandleDialogResponse(GtkDialog* dialog,
+                                                    gint response_id) {
+  switch (response_id) {
+    case GTK_RESPONSE_OK:
+      // The first arg is the prompt text and the second is true if we want to
+      // suppress additional popups from the page.
+      OnAccept(GetPromptText(dialog), ShouldSuppressJSDialogs(dialog));
+      break;
+
+    case GTK_RESPONSE_CANCEL:
+    case GTK_RESPONSE_DELETE_EVENT:   // User hit the X on the dialog.
+      OnCancel();
+      break;
+
+    default:
+      NOTREACHED();
+  }
+  gtk_widget_destroy(GTK_WIDGET(dialog));
+
+  // Now that the dialog is gone, we can put all the  windows into separate
+  // window groups so other dialogs are no longer app modal.
+  for (BrowserList::const_iterator it = BrowserList::begin();
+       it != BrowserList::end(); ++it) {
+    GtkWindowGroup* window_group = gtk_window_group_new();
+    gtk_window_group_add_window(window_group,
+                                (*it)->window()->GetNativeHandle());
+    g_object_unref(window_group);
+  }
+  delete this;
+}
+
+int JavaScriptAppModalDialog::GetDialogButtons() {
+  switch (dialog_flags_) {
+    case MessageBoxFlags::kIsJavascriptAlert:
+      return MessageBoxFlags::DIALOGBUTTON_OK;
+
+    case MessageBoxFlags::kIsJavascriptConfirm:
+      return MessageBoxFlags::DIALOGBUTTON_OK |
+             MessageBoxFlags::DIALOGBUTTON_CANCEL;
+
+    case MessageBoxFlags::kIsJavascriptPrompt:
+      return MessageBoxFlags::DIALOGBUTTON_OK;
+
+    default:
+      NOTREACHED();
+      return 0;
+  }
+}
+
+void JavaScriptAppModalDialog::AcceptWindow() {
+  HandleDialogResponse(GTK_DIALOG(dialog_), GTK_RESPONSE_OK);
+}
+
+void JavaScriptAppModalDialog::CancelWindow() {
+  HandleDialogResponse(GTK_DIALOG(dialog_), GTK_RESPONSE_CANCEL);
+}
+
+NativeDialog JavaScriptAppModalDialog::CreateNativeDialog() {
+  GtkButtonsType buttons = GTK_BUTTONS_NONE;
+  GtkMessageType message_type = GTK_MESSAGE_OTHER;
+  // We add in the OK button manually later because we want to focus it
+  // explicitly.
+  switch (dialog_flags_) {
+    case MessageBoxFlags::kIsJavascriptAlert:
+      buttons = GTK_BUTTONS_NONE;
+      message_type = GTK_MESSAGE_WARNING;
+      break;
+
+    case MessageBoxFlags::kIsJavascriptConfirm:
+      if (is_before_unload_dialog_) {
+        // onbeforeunload also uses a confirm prompt, it just has custom
+        // buttons.  We add the buttons using gtk_dialog_add_button below.
+        buttons = GTK_BUTTONS_NONE;
+      } else {
+        buttons = GTK_BUTTONS_CANCEL;
+      }
+      message_type = GTK_MESSAGE_QUESTION;
+      break;
+
+    case MessageBoxFlags::kIsJavascriptPrompt:
+      buttons = GTK_BUTTONS_CANCEL;
+      message_type = GTK_MESSAGE_QUESTION;
+      break;
+
+    default:
+      NOTREACHED();
+  }
+
+  // We want the alert to be app modal so put all the browser windows into the
+  // same window group.
+  GtkWindowGroup* window_group = gtk_window_group_new();
+  for (BrowserList::const_iterator it = BrowserList::begin();
+       it != BrowserList::end(); ++it) {
+    gtk_window_group_add_window(window_group,
+                                (*it)->window()->GetNativeHandle());
+  }
+  g_object_unref(window_group);
+
+  gfx::NativeWindow window = client_->GetMessageBoxRootWindow();
+  NativeDialog dialog = gtk_message_dialog_new(window, GTK_DIALOG_MODAL,
+      message_type, buttons, "%s", WideToUTF8(message_text_).c_str());
+  gtk_util::ApplyMessageDialogQuirks(dialog);
+  gtk_window_set_title(GTK_WINDOW(dialog), WideToUTF8(title_).c_str());
+
+  // Adjust content area as needed.  Set up the prompt text entry or
+  // suppression check box.
+  if (MessageBoxFlags::kIsJavascriptPrompt == dialog_flags_) {
+    // TODO(tc): Replace with gtk_dialog_get_content_area() when using GTK 2.14+
+    GtkWidget* contents_vbox = GTK_DIALOG(dialog)->vbox;
+    GtkWidget* text_box = gtk_entry_new();
+    gtk_entry_set_text(GTK_ENTRY(text_box),
+                       WideToUTF8(default_prompt_text_).c_str());
+    gtk_box_pack_start(GTK_BOX(contents_vbox), text_box, TRUE, TRUE, 0);
+    g_object_set_data(G_OBJECT(dialog), kPromptTextId, text_box);
+    gtk_entry_set_activates_default(GTK_ENTRY(text_box), TRUE);
+  }
+
+  if (display_suppress_checkbox_) {
+    GtkWidget* contents_vbox = GTK_DIALOG(dialog)->vbox;
+    GtkWidget* check_box = gtk_check_button_new_with_label(
+        l10n_util::GetStringUTF8(
+            IDS_JAVASCRIPT_MESSAGEBOX_SUPPRESS_OPTION).c_str());
+    gtk_box_pack_start(GTK_BOX(contents_vbox), check_box, TRUE, TRUE, 0);
+    g_object_set_data(G_OBJECT(dialog), kSuppressCheckboxId, check_box);
+  }
+
+  // Adjust buttons/action area as needed.
+  if (is_before_unload_dialog_) {
+    std::string button_text = l10n_util::GetStringUTF8(
+        IDS_BEFOREUNLOAD_MESSAGEBOX_OK_BUTTON_LABEL);
+    gtk_dialog_add_button(GTK_DIALOG(dialog), button_text.c_str(),
+                          GTK_RESPONSE_OK);
+
+    button_text = l10n_util::GetStringUTF8(
+        IDS_BEFOREUNLOAD_MESSAGEBOX_CANCEL_BUTTON_LABEL);
+    gtk_dialog_add_button(GTK_DIALOG(dialog), button_text.c_str(),
+                          GTK_RESPONSE_CANCEL);
+  } else {
+    // Add the OK button and focus it.
+    GtkWidget* ok_button = gtk_dialog_add_button(GTK_DIALOG(dialog),
+        GTK_STOCK_OK, GTK_RESPONSE_OK);
+    if (MessageBoxFlags::kIsJavascriptPrompt != dialog_flags_)
+      gtk_widget_grab_focus(ok_button);
+  }
+
+  gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_OK);
+  g_signal_connect(dialog, "response",
+                   G_CALLBACK(AppModalDialog::OnDialogResponse),
+                   reinterpret_cast<AppModalDialog*>(this));
+  return dialog;
+}
+