Refactor AppModalDialog to more clearly isolate platform specific UI pieces and eliminate the dependency on individual frontends from cross platform code.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/3398015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@60785 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 234 insertions, 0 deletions

diff --git a/chrome/browser/gtk/js_modal_dialog_gtk.cc b/chrome/browser/gtk/js_modal_dialog_gtk.cc
new file mode 100644
index 0000000..9a12cc9
--- /dev/null
+++ b/chrome/browser/gtk/js_modal_dialog_gtk.cc
@@ -0,0 +1,234 @@
+// 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/gtk/js_modal_dialog_gtk.h"
+
+#include <gtk/gtk.h>
+
+#include "app/gtk_util.h"
+#include "app/l10n_util.h"
+#include "app/message_box_flags.h"
+#include "base/logging.h"
+#include "base/utf_string_conversions.h"
+#include "chrome/browser/gtk/gtk_util.h"
+#include "chrome/browser/js_modal_dialog.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
+
+////////////////////////////////////////////////////////////////////////////////
+// JSModalDialogGtk, public:
+
+JSModalDialogGtk::JSModalDialogGtk(JavaScriptAppModalDialog* dialog,
+                                   gfx::NativeWindow parent_window)
+    : dialog_(dialog) {
+  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_->dialog_flags()) {
+    case MessageBoxFlags::kIsJavascriptAlert:
+      buttons = GTK_BUTTONS_NONE;
+      message_type = GTK_MESSAGE_WARNING;
+      break;
+
+    case MessageBoxFlags::kIsJavascriptConfirm:
+      if (dialog_->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.
+  gtk_util::MakeAppModalWindowGroup();
+
+  gtk_dialog_ = gtk_message_dialog_new(parent_window,
+      GTK_DIALOG_MODAL, message_type, buttons, "%s",
+      WideToUTF8(dialog_->message_text()).c_str());
+  gtk_util::ApplyMessageDialogQuirks(gtk_dialog_);
+  gtk_window_set_title(GTK_WINDOW(gtk_dialog_),
+                       WideToUTF8(dialog_->title()).c_str());
+
+  // Adjust content area as needed.  Set up the prompt text entry or
+  // suppression check box.
+  if (MessageBoxFlags::kIsJavascriptPrompt == dialog_->dialog_flags()) {
+    // TODO(tc): Replace with gtk_dialog_get_content_area() when using GTK 2.14+
+    GtkWidget* contents_vbox = GTK_DIALOG(gtk_dialog_)->vbox;
+    GtkWidget* text_box = gtk_entry_new();
+    gtk_entry_set_text(GTK_ENTRY(text_box),
+        WideToUTF8(dialog_->default_prompt_text()).c_str());
+    gtk_box_pack_start(GTK_BOX(contents_vbox), text_box, TRUE, TRUE, 0);
+    g_object_set_data(G_OBJECT(gtk_dialog_), kPromptTextId, text_box);
+    gtk_entry_set_activates_default(GTK_ENTRY(text_box), TRUE);
+  }
+
+  if (dialog_->display_suppress_checkbox()) {
+    GtkWidget* contents_vbox = GTK_DIALOG(gtk_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(gtk_dialog_), kSuppressCheckboxId, check_box);
+  }
+
+  // Adjust buttons/action area as needed.
+  if (dialog_->is_before_unload_dialog()) {
+    std::string button_text = l10n_util::GetStringUTF8(
+      IDS_BEFOREUNLOAD_MESSAGEBOX_OK_BUTTON_LABEL);
+    gtk_dialog_add_button(GTK_DIALOG(gtk_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(gtk_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(gtk_dialog_),
+        GTK_STOCK_OK, GTK_RESPONSE_OK);
+    if (MessageBoxFlags::kIsJavascriptPrompt != dialog_->dialog_flags())
+      gtk_widget_grab_focus(ok_button);
+  }
+
+  gtk_dialog_set_default_response(GTK_DIALOG(gtk_dialog_), GTK_RESPONSE_OK);
+  g_signal_connect(gtk_dialog_, "response",
+      G_CALLBACK(JSModalDialogGtk::OnDialogResponse),
+      reinterpret_cast<JSModalDialogGtk*>(this));
+}
+
+JSModalDialogGtk::~JSModalDialogGtk() {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// JSModalDialogGtk, NativeAppModalDialog implementation:
+
+int JSModalDialogGtk::GetAppModalDialogButtons() const {
+  switch (dialog_->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 JSModalDialogGtk::ShowAppModalDialog() {
+  gtk_util::ShowModalDialogWithMinLocalizedWidth(GTK_WIDGET(gtk_dialog_),
+      IDS_ALERT_DIALOG_WIDTH_CHARS);
+}
+
+void JSModalDialogGtk::ActivateAppModalDialog() {
+  DCHECK(gtk_dialog_);
+  gtk_window_present(GTK_WINDOW(gtk_dialog_));}
+
+void JSModalDialogGtk::CloseAppModalDialog() {
+  DCHECK(gtk_dialog_);
+  HandleDialogResponse(GTK_DIALOG(gtk_dialog_), GTK_RESPONSE_DELETE_EVENT);
+}
+
+void JSModalDialogGtk::AcceptAppModalDialog() {
+  HandleDialogResponse(GTK_DIALOG(gtk_dialog_), GTK_RESPONSE_OK);
+}
+
+void JSModalDialogGtk::CancelAppModalDialog() {
+  HandleDialogResponse(GTK_DIALOG(gtk_dialog_), GTK_RESPONSE_CANCEL);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// JSModalDialogGtk, private:
+
+void JSModalDialogGtk::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.
+      dialog_->OnAccept(GetPromptText(dialog), ShouldSuppressJSDialogs(dialog));
+      break;
+
+    case GTK_RESPONSE_CANCEL:
+    case GTK_RESPONSE_DELETE_EVENT:   // User hit the X on the dialog.
+      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.
+  gtk_util::AppModalDismissedUngroupWindows();
+  delete this;
+}
+
+// static
+void JSModalDialogGtk::OnDialogResponse(GtkDialog* gtk_dialog,
+                                        gint response_id,
+                                        JSModalDialogGtk* dialog) {
+  dialog->HandleDialogResponse(gtk_dialog, response_id);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// NativeAppModalDialog, public:
+
+// static
+NativeAppModalDialog* NativeAppModalDialog::CreateNativeJavaScriptPrompt(
+    JavaScriptAppModalDialog* dialog,
+    gfx::NativeWindow parent_window) {
+  return new JSModalDialogGtk(dialog, parent_window);
+}
+
+