[Linux]Implement Cut, Copy and Paste from page menu.

BUG=18030
TEST=The Cut, Copy and Paste commands in page menu should work in both web content and location bar.

Review URL: http://codereview.chromium.org/552125

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@36989 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 33 insertions, 0 deletions

diff --git a/chrome/browser/gtk/browser_window_gtk.cc b/chrome/browser/gtk/browser_window_gtk.cc
index 1e2a448..440639a 100644
--- a/chrome/browser/gtk/browser_window_gtk.cc
+++ b/chrome/browser/gtk/browser_window_gtk.cc
@@ -68,6 +68,7 @@
 #include "chrome/browser/gtk/toolbar_star_toggle_gtk.h"
 #include "chrome/browser/location_bar.h"
 #include "chrome/browser/page_info_window.h"
+#include "chrome/browser/renderer_host/render_view_host.h"
 #include "chrome/browser/renderer_host/render_widget_host_view_gtk.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/browser/tab_contents/tab_contents_view.h"
@@ -296,6 +297,26 @@ bool ShouldExecuteReservedCommandImmediately(
   return true;
 }
 
+// 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(BrowserWindowGtk* window, void (RenderViewHost::*method)(),
+                    const char* signal) {
+  TabContents* current_tab_contents =
+      window->browser()->tabstrip_model()->GetSelectedTabContents();
+  if (current_tab_contents && current_tab_contents->GetContentNativeView() &&
+      gtk_widget_is_focus(current_tab_contents->GetContentNativeView())) {
+    (current_tab_contents->render_view_host()->*method)();
+  } else {
+    GtkWidget* widget = gtk_window_get_focus(window->window());
+    guint id;
+    if (widget && (id = g_signal_lookup(signal, G_OBJECT_TYPE(widget))) != 0)
+      g_signal_emit(widget, id, 0);
+  }
+}
+
 }  // namespace
 
 std::map<XID, GtkWindow*> BrowserWindowGtk::xid_map_;
@@ -1002,6 +1023,18 @@ void BrowserWindowGtk::ShowCreateShortcutsDialog(TabContents* tab_contents) {
                                             bitmap);
 }
 
+void BrowserWindowGtk::Cut() {
+  DoCutCopyPaste(this, &RenderViewHost::Cut, "cut-clipboard");
+}
+
+void BrowserWindowGtk::Copy() {
+  DoCutCopyPaste(this, &RenderViewHost::Copy, "copy-clipboard");
+}
+
+void BrowserWindowGtk::Paste() {
+  DoCutCopyPaste(this, &RenderViewHost::Paste, "paste-clipboard");
+}
+
 void BrowserWindowGtk::ConfirmBrowserCloseWithPendingDownloads() {
   new DownloadInProgressDialogGtk(browser());
 }