Beginnings of clipboard support. Incomplete but primary sort of work.

[evince.git] / shell / ev-view.c

diff --git a/shell/ev-view.c b/shell/ev-view.c
index 8616fea96ae4d4646f2fdcdf6d30c93ee7a02f87..bd50b38b6c0209e428d31b159ef3ea2ead5461ac 100644 (file)
--- a/shell/ev-view.c
+++ b/shell/ev-view.c
@@ -21,6 +21,8 @@
 #include <gtk/gtkalignment.h>
 #include <glib/gi18n.h>
 #include <gtk/gtkbindings.h>
+#include <gtk/gtkselection.h>
+#include <gtk/gtkclipboard.h>
 #include <gdk/gdkkeysyms.h>
 
 #include "ev-marshal.h"
@@ -31,6 +33,21 @@
 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
 #define EV_VIEW_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
 
+enum {
+  TARGET_STRING,
+  TARGET_TEXT,
+  TARGET_COMPOUND_TEXT,
+  TARGET_UTF8_STRING,
+  TARGET_TEXT_BUFFER_CONTENTS
+};
+
+static const GtkTargetEntry targets[] = {
+       { "STRING", 0, TARGET_STRING },
+       { "TEXT",   0, TARGET_TEXT },
+       { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
+       { "UTF8_STRING", 0, TARGET_UTF8_STRING },
+};
+
 struct _EvView {
        GtkWidget parent_instance;
 
@@ -41,6 +58,9 @@ struct _EvView {
        int scroll_x;
        int scroll_y;
 
+       gboolean has_selection;
+       GdkRectangle selection;
+
        GtkAdjustment *hadjustment;
        GtkAdjustment *vadjustment;
 
@@ -247,8 +267,10 @@ ev_view_realize (GtkWidget *widget)
        attributes.height = MAX (widget->allocation.height, widget->requisition.height);
        attributes.event_mask = GDK_EXPOSURE_MASK |
                                GDK_BUTTON_PRESS_MASK |
+                               GDK_BUTTON_RELEASE_MASK |
                                GDK_SCROLL_MASK |
-                               GDK_KEY_PRESS_MASK;
+                               GDK_KEY_PRESS_MASK |
+                               GDK_BUTTON1_MOTION_MASK;
   
        view->bin_window = gdk_window_new (widget->window,
                                           &attributes,
@@ -379,6 +401,10 @@ expose_bin_window (GtkWidget      *widget,
                                         &results[i].highlight_area);
                 ++i;
         }
+
+       if (view->has_selection) {
+               draw_rubberband (widget, view->bin_window, &view->selection);
+       }
 }
 
 static gboolean
@@ -395,14 +421,67 @@ ev_view_expose_event (GtkWidget      *widget,
        return FALSE;
 }
 
+static void
+ev_view_primary_get_cb (GtkClipboard     *clipboard,
+                       GtkSelectionData *selection_data,
+                       guint             info,
+                       gpointer          data)
+{
+       EvView *ev_view = EV_VIEW (data);
+       char *text;
+
+       text = ev_document_get_text (ev_view->document, &ev_view->selection);
+       gtk_selection_data_set_text (selection_data, text, -1);
+}
+
+static void
+ev_view_primary_clear_cb (GtkClipboard *clipboard,
+                         gpointer      data)
+{
+       EvView *ev_view = EV_VIEW (data);
+
+       ev_view->has_selection = FALSE;
+}
+
+static void
+ev_view_update_primary_selection (EvView *ev_view)
+{
+       GtkClipboard *clipboard;
+
+       clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
+                                              GDK_SELECTION_PRIMARY);
+
+       if (ev_view->has_selection) {
+               if (!gtk_clipboard_set_with_owner (clipboard,
+                                                  targets,
+                                                  G_N_ELEMENTS (targets),
+                                                  ev_view_primary_get_cb,
+                                                  ev_view_primary_clear_cb,
+                                                  G_OBJECT (ev_view)))
+                       ev_view_primary_clear_cb (clipboard, ev_view);
+       } else {
+               if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
+                       gtk_clipboard_clear (clipboard);
+       }
+}
+
 static gboolean
 ev_view_button_press_event (GtkWidget      *widget,
                            GdkEventButton *event)
 {
-       if (event->type == GDK_BUTTON_PRESS) {
-               if (!GTK_WIDGET_HAS_FOCUS (widget)) {
-                       gtk_widget_grab_focus (widget);
-               }
+       EvView *view = EV_VIEW (widget);
+
+       if (!GTK_WIDGET_HAS_FOCUS (widget)) {
+               gtk_widget_grab_focus (widget);
+       }
+
+       switch (event->button) {
+               case 1:
+                       view->selection.x = event->x;
+                       view->selection.y = event->y;
+                       view->selection.width = 0;
+                       view->selection.height = 0;
+                       break;
        }
 
        return TRUE;
@@ -412,16 +491,26 @@ static gboolean
 ev_view_motion_notify_event (GtkWidget      *widget,
                             GdkEventMotion *event)
 {
-       /* EvView *view = EV_VIEW (widget); */
-  
-       return FALSE;
+       EvView *view = EV_VIEW (widget);
+
+       view->has_selection = TRUE;
+       view->selection.x = MIN (view->selection.x, event->x);
+       view->selection.y = MIN (view->selection.y, event->y);
+       view->selection.width = ABS (view->selection.x - event->x) + 1;
+       view->selection.height = ABS (view->selection.y - event->y) + 1;
+
+       gtk_widget_queue_draw (widget);
+
+       return TRUE;
 }
 
 static gboolean
 ev_view_button_release_event (GtkWidget      *widget,
                              GdkEventButton *event)
 {
-       /* EvView *view = EV_VIEW (widget); */
+       EvView *view = EV_VIEW (widget);
+
+       ev_view_update_primary_selection (view);
 
        return FALSE;
 }