242 lines
		
	
	
	
		
			8 KiB
			
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			242 lines
		
	
	
	
		
			8 KiB
			
		
	
	
	
		
			C++
		
	
	
	
	
	
// Copyright (c) 2015 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "shell/browser/ui/gtk_util.h"
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#include "shell/browser/ui/message_box.h"
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#include "base/callback.h"
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#include "base/strings/string_util.h"
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#include "base/strings/utf_string_conversions.h"
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#include "shell/browser/browser.h"
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#include "shell/browser/native_window_observer.h"
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#include "shell/browser/native_window_views.h"
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#include "shell/browser/unresponsive_suppressor.h"
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#include "ui/base/glib/glib_signal.h"
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#include "ui/gfx/image/image_skia.h"
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#include "ui/gtk/gtk_util.h"
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#if defined(USE_X11)
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#include "ui/events/platform/x11/x11_event_source.h"
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#endif
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#if defined(USE_OZONE) || defined(USE_X11)
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#include "ui/base/ui_base_features.h"
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#endif
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#define ANSI_FOREGROUND_RED "\x1b[31m"
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#define ANSI_FOREGROUND_BLACK "\x1b[30m"
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#define ANSI_TEXT_BOLD "\x1b[1m"
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#define ANSI_BACKGROUND_GRAY "\x1b[47m"
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#define ANSI_RESET "\x1b[0m"
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namespace electron {
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MessageBoxSettings::MessageBoxSettings() = default;
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MessageBoxSettings::MessageBoxSettings(const MessageBoxSettings&) = default;
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MessageBoxSettings::~MessageBoxSettings() = default;
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namespace {
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class GtkMessageBox : public NativeWindowObserver {
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 public:
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  explicit GtkMessageBox(const MessageBoxSettings& settings)
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      : cancel_id_(settings.cancel_id),
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        parent_(static_cast<NativeWindow*>(settings.parent_window)) {
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    // Create dialog.
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    dialog_ =
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        gtk_message_dialog_new(nullptr,                         // parent
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                               static_cast<GtkDialogFlags>(0),  // no flags
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                               GetMessageType(settings.type),   // type
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                               GTK_BUTTONS_NONE,                // no buttons
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                               "%s", settings.message.c_str());
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    if (!settings.detail.empty())
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      gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dialog_),
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                                               "%s", settings.detail.c_str());
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    if (!settings.title.empty())
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      gtk_window_set_title(GTK_WINDOW(dialog_), settings.title.c_str());
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    if (!settings.icon.isNull()) {
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      // No easy way to obtain this programmatically, but GTK+'s docs
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      // define GTK_ICON_SIZE_DIALOG to be 48 pixels
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      static constexpr int pixel_width = 48;
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      static constexpr int pixel_height = 48;
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      GdkPixbuf* pixbuf =
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          gtk_util::GdkPixbufFromSkBitmap(*settings.icon.bitmap());
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      GdkPixbuf* scaled_pixbuf = gdk_pixbuf_scale_simple(
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          pixbuf, pixel_width, pixel_height, GDK_INTERP_BILINEAR);
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      GtkWidget* w = gtk_image_new_from_pixbuf(scaled_pixbuf);
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      gtk_message_dialog_set_image(GTK_MESSAGE_DIALOG(dialog_), w);
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      gtk_widget_show(w);
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      g_clear_pointer(&scaled_pixbuf, g_object_unref);
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      g_clear_pointer(&pixbuf, g_object_unref);
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    }
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    if (!settings.checkbox_label.empty()) {
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      GtkWidget* message_area =
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          gtk_message_dialog_get_message_area(GTK_MESSAGE_DIALOG(dialog_));
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      GtkWidget* check_button =
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          gtk_check_button_new_with_label(settings.checkbox_label.c_str());
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      g_signal_connect(check_button, "toggled",
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                       G_CALLBACK(OnCheckboxToggledThunk), this);
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      gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(check_button),
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                                   settings.checkbox_checked);
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      gtk_container_add(GTK_CONTAINER(message_area), check_button);
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      gtk_widget_show(check_button);
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    }
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    // Add buttons.
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    GtkDialog* dialog = GTK_DIALOG(dialog_);
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    if (settings.buttons.size() == 0) {
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      gtk_dialog_add_button(dialog, TranslateToStock(0, "OK"), 0);
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    } else {
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      for (size_t i = 0; i < settings.buttons.size(); ++i) {
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        gtk_dialog_add_button(dialog, TranslateToStock(i, settings.buttons[i]),
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                              i);
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      }
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    }
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    gtk_dialog_set_default_response(dialog, settings.default_id);
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    // Parent window.
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    if (parent_) {
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      parent_->AddObserver(this);
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      static_cast<NativeWindowViews*>(parent_)->SetEnabled(false);
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      gtk::SetGtkTransientForAura(dialog_, parent_->GetNativeWindow());
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      gtk_window_set_modal(GTK_WINDOW(dialog_), TRUE);
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    }
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  }
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  ~GtkMessageBox() override {
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    gtk_widget_destroy(dialog_);
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    if (parent_) {
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      parent_->RemoveObserver(this);
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      static_cast<NativeWindowViews*>(parent_)->SetEnabled(true);
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    }
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  }
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  GtkMessageType GetMessageType(MessageBoxType type) {
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    switch (type) {
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      case MessageBoxType::kInformation:
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        return GTK_MESSAGE_INFO;
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      case MessageBoxType::kWarning:
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        return GTK_MESSAGE_WARNING;
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      case MessageBoxType::kQuestion:
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        return GTK_MESSAGE_QUESTION;
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      case MessageBoxType::kError:
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        return GTK_MESSAGE_ERROR;
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      default:
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        return GTK_MESSAGE_OTHER;
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    }
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  }
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  const char* TranslateToStock(int id, const std::string& text) {
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    const std::string lower = base::ToLowerASCII(text);
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    if (lower == "cancel")
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      return gtk_util::kCancelLabel;
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    if (lower == "no")
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      return gtk_util::kNoLabel;
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    if (lower == "ok")
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      return gtk_util::kOkLabel;
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    if (lower == "yes")
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      return gtk_util::kYesLabel;
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    return text.c_str();
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  }
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  void Show() {
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    gtk_widget_show(dialog_);
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#if defined(USE_X11)
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    if (!features::IsUsingOzonePlatform()) {
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      // We need to call gtk_window_present after making the widgets visible to
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      // make sure window gets correctly raised and gets focus.
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      x11::Time time = ui::X11EventSource::GetInstance()->GetTimestamp();
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      gtk_window_present_with_time(GTK_WINDOW(dialog_),
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                                   static_cast<uint32_t>(time));
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    }
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#endif
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  }
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  int RunSynchronous() {
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    Show();
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    int response = gtk_dialog_run(GTK_DIALOG(dialog_));
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    return (response < 0) ? cancel_id_ : response;
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  }
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  void RunAsynchronous(MessageBoxCallback callback) {
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    callback_ = std::move(callback);
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    g_signal_connect(dialog_, "delete-event",
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                     G_CALLBACK(gtk_widget_hide_on_delete), nullptr);
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    g_signal_connect(dialog_, "response", G_CALLBACK(OnResponseDialogThunk),
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                     this);
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    Show();
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  }
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  void OnWindowClosed() override {
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    parent_->RemoveObserver(this);
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    parent_ = nullptr;
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  }
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  CHROMEG_CALLBACK_1(GtkMessageBox, void, OnResponseDialog, GtkWidget*, int);
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  CHROMEG_CALLBACK_0(GtkMessageBox, void, OnCheckboxToggled, GtkWidget*);
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 private:
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  electron::UnresponsiveSuppressor unresponsive_suppressor_;
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  // The id to return when the dialog is closed without pressing buttons.
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  int cancel_id_ = 0;
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  bool checkbox_checked_ = false;
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  NativeWindow* parent_;
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  GtkWidget* dialog_;
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  MessageBoxCallback callback_;
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  DISALLOW_COPY_AND_ASSIGN(GtkMessageBox);
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};
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void GtkMessageBox::OnResponseDialog(GtkWidget* widget, int response) {
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  gtk_widget_hide(dialog_);
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  if (response < 0)
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    std::move(callback_).Run(cancel_id_, checkbox_checked_);
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  else
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    std::move(callback_).Run(response, checkbox_checked_);
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  delete this;
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}
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void GtkMessageBox::OnCheckboxToggled(GtkWidget* widget) {
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  checkbox_checked_ = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget));
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}
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}  // namespace
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int ShowMessageBoxSync(const MessageBoxSettings& settings) {
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  return GtkMessageBox(settings).RunSynchronous();
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}
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void ShowMessageBox(const MessageBoxSettings& settings,
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                    MessageBoxCallback callback) {
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  (new GtkMessageBox(settings))->RunAsynchronous(std::move(callback));
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}
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void ShowErrorBox(const base::string16& title, const base::string16& content) {
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  if (Browser::Get()->is_ready()) {
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    electron::MessageBoxSettings settings;
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    settings.type = electron::MessageBoxType::kError;
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    settings.buttons = {};
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    settings.title = "Error";
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    settings.message = base::UTF16ToUTF8(title);
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    settings.detail = base::UTF16ToUTF8(content);
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    GtkMessageBox(settings).RunSynchronous();
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  } else {
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    fprintf(stderr,
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            ANSI_TEXT_BOLD ANSI_BACKGROUND_GRAY ANSI_FOREGROUND_RED
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            "%s\n" ANSI_FOREGROUND_BLACK "%s" ANSI_RESET "\n",
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            base::UTF16ToUTF8(title).c_str(),
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            base::UTF16ToUTF8(content).c_str());
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  }
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}
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}  // namespace electron
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