From c2cff39bc5a82c20d4fecf233a405e671e0901ec Mon Sep 17 00:00:00 2001
From: Cheng Zhao <zcbenz@gmail.com>
Date: Thu, 13 Mar 2014 12:58:27 +0800
Subject: [PATCH] gtk: Initial implementation of save dialog.

---
 browser/ui/file_dialog_gtk.cc | 66 ++++++++++++++++++++++++++++++++++-
 1 file changed, 65 insertions(+), 1 deletion(-)

diff --git a/browser/ui/file_dialog_gtk.cc b/browser/ui/file_dialog_gtk.cc
index 1b47e0e440..5ffe2d6504 100644
--- a/browser/ui/file_dialog_gtk.cc
+++ b/browser/ui/file_dialog_gtk.cc
@@ -5,9 +5,71 @@
 #include "browser/ui/file_dialog.h"
 
 #include "base/callback.h"
+#include "browser/native_window.h"
+#include "browser/ui/gtk/gtk_util.h"
+#include "ui/base/gtk/gtk_signal.h"
 
 namespace file_dialog {
 
+namespace {
+
+class FileChooserDialog {
+ public:
+  FileChooserDialog(GtkFileChooserAction action,
+                    atom::NativeWindow* parent_window,
+                    const std::string& title,
+                    const base::FilePath& default_path) {
+    GtkWindow* window = parent_window ? parent_window->GetNativeWindow() : NULL;
+    dialog_ = gtk_file_chooser_dialog_new(
+        title.c_str(),
+        window,
+        action,
+        GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
+        GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
+        NULL);
+  }
+
+  virtual ~FileChooserDialog() {
+    gtk_widget_destroy(dialog_);
+  }
+
+  void RunSaveAsynchronous(const SaveDialogCallback& callback) {
+    save_callback_ = callback;
+    g_signal_connect(dialog_, "delete-event",
+                     G_CALLBACK(gtk_widget_hide_on_delete), NULL);
+    g_signal_connect(dialog_, "response",
+                     G_CALLBACK(OnSelectSingleFileDialogResponseThunk), this);
+    gtk_widget_show_all(dialog_);
+  }
+
+  CHROMEGTK_CALLBACK_1(FileChooserDialog, void,
+                       OnSelectSingleFileDialogResponse, int);
+
+ private:
+  GtkWidget* dialog_;
+
+  SaveDialogCallback save_callback_;
+  OpenDialogCallback open_callback_;
+
+  DISALLOW_COPY_AND_ASSIGN(FileChooserDialog);
+};
+
+void FileChooserDialog::OnSelectSingleFileDialogResponse(GtkWidget* widget,
+                                                         int response) {
+  gtk_widget_hide_all(dialog_);
+
+  if (response == GTK_RESPONSE_ACCEPT) {
+    gchar* filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog_));
+    save_callback_.Run(true, base::FilePath(filename));
+  } else {
+    save_callback_.Run(false, base::FilePath());
+  }
+
+  delete this;
+}
+
+}  // namespace
+
 bool ShowOpenDialog(atom::NativeWindow* parent_window,
                     const std::string& title,
                     const base::FilePath& default_path,
@@ -35,7 +97,9 @@ void ShowSaveDialog(atom::NativeWindow* parent_window,
                     const std::string& title,
                     const base::FilePath& default_path,
                     const SaveDialogCallback& callback) {
-  callback.Run(false, base::FilePath());
+  FileChooserDialog* dialog = new FileChooserDialog(
+      GTK_FILE_CHOOSER_ACTION_SAVE, parent_window, title, default_path);
+  dialog->RunSaveAsynchronous(callback);
 }
 
 }  // namespace file_dialog