Revert 151353 - Panels refactor: Support browserless panels on Linux.

chrome/browser/ui/gtk/gtk_util.cc

 // Copyright (c) 2012 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/ui/gtk/gtk_util.h"
 
 #include <cairo/cairo.h>
 
 #include <algorithm>
 #include <cstdarg>
 #include <map>
 
 #include "base/environment.h"
 #include "base/i18n/rtl.h"
 #include "base/logging.h"
 #include "base/nix/xdg_util.h"
 #include "base/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/autocomplete/autocomplete_classifier.h"
 #include "chrome/browser/autocomplete/autocomplete_classifier_factory.h"
 #include "chrome/browser/autocomplete/autocomplete_match.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_info_cache.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_list.h"
+#include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/gtk/browser_window_gtk.h"
 #include "chrome/browser/ui/gtk/gtk_theme_service.h"
+#include "content/public/browser/render_view_host.h"
+#include "content/public/browser/web_contents.h"
 #include "googleurl/src/gurl.h"
 #include "grit/theme_resources.h"
 #include "ui/base/gtk/gtk_compat.h"
 #include "ui/base/gtk/gtk_hig_constants.h"
 #include "ui/base/gtk/gtk_screen_util.h"
 #include "ui/base/gtk/menu_label_accelerator_util.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/text/text_elider.h"
 #include "ui/base/x/x11_util.h"
 #include "ui/gfx/image/cairo_cached_surface.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/pango_util.h"
 
 // These conflict with base/tracked_objects.h, so need to come last.
 #include <gdk/gdkx.h>  // NOLINT
 
+using content::RenderWidgetHost;
+using content::WebContents;
+
 namespace {
 
 #if defined(GOOGLE_CHROME_BUILD)
 static const char* kIconName = "google-chrome";
 #else
 static const char* kIconName = "chromium-browser";
 #endif
 
 const char kBoldLabelMarkup[] = "<span weight='bold'>%s</span>";
 
@@ skipping 207 matching lines @@
   for (GList* item = children; item; item = item->next) {
     gtk_container_propagate_expose(GTK_CONTAINER(widget),
                                    GTK_WIDGET(item->data),
                                    event);
   }
   g_list_free(children);
 
   return TRUE;
 }
 
+WebContents* GetBrowserWindowSelectedWebContents(BrowserWindow* window) {
+  BrowserWindowGtk* browser_window = static_cast<BrowserWindowGtk*>(
+      window);
+  return chrome::GetActiveWebContents(browser_window->browser());
+}
+
+GtkWidget* GetBrowserWindowFocusedWidget(BrowserWindow* window) {
+  return gtk_window_get_focus(window->GetNativeWindow());
+}
+
 }  // namespace
 
 namespace gtk_util {
 
 GtkWidget* CreateLabeledControlsGroup(std::vector<GtkWidget*>* labels,
                                       const char* text, ...) {
   va_list ap;
   va_start(ap, text);
   GtkWidget* table = gtk_table_new(0, 2, FALSE);
   gtk_table_set_col_spacing(GTK_TABLE(table), 0, ui::kLabelSpacing);
@@ skipping 700 matching lines @@
 void ApplyMessageDialogQuirks(GtkWidget* dialog) {
   if (gtk_window_get_modal(GTK_WINDOW(dialog))) {
     // Work around a KDE 3 window manager bug.
     scoped_ptr<base::Environment> env(base::Environment::Create());
     if (base::nix::DESKTOP_ENVIRONMENT_KDE3 ==
         base::nix::GetDesktopEnvironment(env.get()))
       gtk_window_set_skip_taskbar_hint(GTK_WINDOW(dialog), FALSE);
   }
 }
 
+// Performs Cut/Copy/Paste operation on the |window|.
+// If the current render view is focused, then just call the specified |method|
+// against the current render view host, otherwise emit the specified |signal|
+// against the focused widget.
+// TODO(suzhe): This approach does not work for plugins.
+void DoCutCopyPaste(BrowserWindow* window,
+                    void (RenderWidgetHost::*method)(),
+                    const char* signal) {
+  GtkWidget* widget = GetBrowserWindowFocusedWidget(window);
+  if (widget == NULL)
+    return;  // Do nothing if no focused widget.
+
+  WebContents* current_tab = GetBrowserWindowSelectedWebContents(window);
+  if (current_tab && widget == current_tab->GetContentNativeView()) {
+    (current_tab->GetRenderViewHost()->*method)();
+  } else {
+    guint id;
+    if ((id = g_signal_lookup(signal, G_OBJECT_TYPE(widget))) != 0)
+      g_signal_emit(widget, id, 0);
+  }
+}
+
+void DoCut(BrowserWindow* window) {
+  DoCutCopyPaste(window, &RenderWidgetHost::Cut, "cut-clipboard");
+}
+
+void DoCopy(BrowserWindow* window) {
+  DoCutCopyPaste(window, &RenderWidgetHost::Copy, "copy-clipboard");
+}
+
+void DoPaste(BrowserWindow* window) {
+  DoCutCopyPaste(window, &RenderWidgetHost::Paste, "paste-clipboard");
+}
+
 }  // namespace gtk_util