+
+ signals[LINK_CONTEXTUAL_SIGNAL] =
+ g_signal_new ("link_contextual",
+ G_TYPE_FROM_CLASS (gobject_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET(ModestMsgViewClass, link_contextual),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__STRING,
+ G_TYPE_NONE, 1, G_TYPE_STRING);
+
+ widget_class->set_scroll_adjustments_signal =
+ g_signal_new ("set_scroll_adjustments",
+ G_OBJECT_CLASS_TYPE (gobject_class),
+ G_SIGNAL_RUN_LAST|G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (ModestMsgViewClass, set_scroll_adjustments),
+ NULL, NULL,
+ modest_marshal_VOID__POINTER_POINTER,
+ G_TYPE_NONE, 2,
+ GTK_TYPE_ADJUSTMENT,
+ GTK_TYPE_ADJUSTMENT);
+}
+
+static void
+set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ ModestMsgView *msg_view = MODEST_MSG_VIEW (object);
+
+ switch (prop_id) {
+ case PROP_HADJUSTMENT:
+ modest_msg_view_set_hadjustment (msg_view, g_value_get_object (value));
+ break;
+ case PROP_VADJUSTMENT:
+ modest_msg_view_set_vadjustment (msg_view, g_value_get_object (value));
+ break;
+ case PROP_SHADOW_TYPE:
+ modest_msg_view_set_shadow_type (msg_view, g_value_get_enum (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ ModestMsgView *msg_view = MODEST_MSG_VIEW (object);
+ ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
+
+ switch (prop_id) {
+ case PROP_HADJUSTMENT:
+ g_value_set_object (value, priv->hadj);
+ break;
+ case PROP_VADJUSTMENT:
+ g_value_set_object (value, priv->vadj);
+ break;
+ case PROP_SHADOW_TYPE:
+ g_value_set_enum (value, priv->shadow_type);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+disconnect_hadjustment (ModestMsgView *msg_view)
+{
+ ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
+
+ if (priv->hadj) {
+ g_signal_handlers_disconnect_by_func(priv->hadj, adjustment_value_changed, msg_view);
+ g_object_unref (priv->hadj);
+ priv->hadj = NULL;
+ }
+}
+
+static void
+disconnect_vadjustment (ModestMsgView *msg_view)
+{
+ ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
+
+ if (priv->vadj) {
+ g_signal_handlers_disconnect_by_func(priv->vadj, adjustment_value_changed, msg_view);
+ g_object_unref (priv->vadj);
+ priv->vadj = NULL;
+ }
+}
+
+static void
+get_view_allocation (ModestMsgView *msg_view, GtkAllocation *allocation)
+{
+ /* This method gets the allocation of the widget in parent widget. It's the
+ real position and size of the widget */
+ ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
+
+ allocation->x = 0;
+ allocation->y = 0;
+
+ if (priv->shadow_type != GTK_SHADOW_NONE) {
+ allocation->x = GTK_WIDGET (msg_view)->style->xthickness;
+ allocation->y = GTK_WIDGET (msg_view)->style->ythickness;
+ }
+
+ allocation->width = MAX (1, (GTK_WIDGET (msg_view)->allocation.width) - allocation->x * 2);
+ allocation->height = MAX (1, (GTK_WIDGET (msg_view)->allocation.height) - allocation->y * 2);
+
+}
+
+static void
+reclamp_adjustment (GtkAdjustment *adj,
+ gboolean *value_changed)
+{
+ gdouble value = adj->value;
+
+ /* Correct value to be inside the expected values of a scroll */
+
+ value = CLAMP (value, 0, adj->upper - adj->page_size);
+
+ if (value != adj->value) {
+ adj->value = value;
+ if (value_changed)
+ *value_changed = TRUE;
+ } else if (value_changed) {
+ *value_changed = FALSE;
+ }
+}
+
+static void
+set_hadjustment_values (ModestMsgView *msg_view,
+ gboolean *value_changed)
+{
+ GtkAllocation view_allocation;
+ GtkAdjustment *hadj = modest_msg_view_get_hadjustment (msg_view);
+
+ get_view_allocation (msg_view, &view_allocation);
+ hadj->page_size = view_allocation.width;
+ hadj->step_increment = view_allocation.width * 0.1;
+ hadj->page_increment = view_allocation.width * 0.9;
+
+ hadj->lower = 0;
+ hadj->upper = view_allocation.width;
+
+ reclamp_adjustment (hadj, value_changed);
+
+}
+
+static void
+set_vadjustment_values (ModestMsgView *msg_view,
+ gboolean *value_changed)
+{
+ GtkAllocation view_allocation;
+ GtkAdjustment *vadj = modest_msg_view_get_vadjustment (msg_view);
+ ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
+ gint full_height = 0;
+ GtkAdjustment *html_vadj;
+
+ get_view_allocation (msg_view, &view_allocation);
+ vadj->page_size = view_allocation.height;
+ vadj->step_increment = view_allocation.height * 0.1;
+ vadj->page_increment = view_allocation.height * 0.9;
+
+ vadj->lower = 0;
+
+ if (priv->headers_box && GTK_WIDGET_VISIBLE(priv->headers_box)) {
+ GtkRequisition child_requisition;
+
+ gtk_widget_get_child_requisition (priv->headers_box, &child_requisition);
+ full_height = child_requisition.height;
+ } else {
+ full_height = 0;
+ }
+
+ /* Get the real height of the embedded html */
+ if (priv->html_scroll && GTK_WIDGET_VISIBLE(priv->html_scroll)) {
+ html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
+ full_height += html_vadj->upper;
+ }
+
+ vadj->upper = MAX (view_allocation.height, full_height);
+
+ reclamp_adjustment (vadj, value_changed);
+
+}
+
+static void
+set_scroll_adjustments (ModestMsgView *msg_view,
+ GtkAdjustment *hadj,
+ GtkAdjustment *vadj)
+{
+ ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
+ modest_msg_view_set_hadjustment (msg_view, hadj);
+ modest_msg_view_set_vadjustment (msg_view, vadj);
+
+ gtk_container_set_focus_vadjustment (GTK_CONTAINER (priv->gtkhtml), vadj);
+}
+
+static void
+realize (GtkWidget *widget)
+{
+ ModestMsgView *msg_view = MODEST_MSG_VIEW (widget);
+ ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
+ GtkAdjustment *hadj = modest_msg_view_get_hadjustment (msg_view);
+ GtkAdjustment *vadj = modest_msg_view_get_vadjustment (msg_view);
+ GdkWindowAttr attributes;
+ gint event_mask;
+ gint attributes_mask;
+ GtkAllocation view_allocation;
+
+ GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
+
+ /* The structure of the GdkWindow's is:
+ * * widget->window: the shown gdkwindow embedding all the stuff inside
+ * * view_window: a backing store gdkwindow containing the headers and contents
+ * being scrolled. This window should have all the visible and non visible
+ * widgets inside.
+ * * headers_window: gdk window for headers_box.
+ * * html_window: gdk window for html_scroll (the scrolled window containing the
+ * gtkhtml showing the contents of the mail).
+ */
+
+ attributes.x = widget->allocation.x;
+ attributes.y = widget->allocation.y;
+ attributes.width = widget->allocation.width;
+ attributes.height = widget->allocation.height;
+ attributes.window_type = GDK_WINDOW_CHILD;
+ attributes.wclass = GDK_INPUT_OUTPUT;
+ attributes.visual = gtk_widget_get_visual (widget);
+ attributes.colormap = gtk_widget_get_colormap (widget);
+
+ event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
+ attributes.event_mask = event_mask | GDK_BUTTON_PRESS_MASK;
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+
+ widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
+ &attributes, attributes_mask);
+ gdk_window_set_user_data (widget->window, msg_view);
+
+ get_view_allocation (msg_view, &view_allocation);
+
+ attributes.x = view_allocation.x;
+ attributes.y = view_allocation.y;
+ attributes.width = view_allocation.width;
+ attributes.height = view_allocation.height;
+ attributes.event_mask = 0;
+ priv->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
+ gdk_window_set_user_data (priv->view_window, msg_view);
+ gdk_window_set_back_pixmap (priv->view_window, NULL, FALSE);
+
+ attributes.x = -hadj->value;
+ attributes.y = -vadj->value;
+ attributes.width = hadj->upper;
+ if (priv->headers_box)
+ attributes.height = GTK_WIDGET (priv->headers_box)->allocation.height;
+ else
+ attributes.height = 1;
+ attributes.event_mask = event_mask;
+
+ priv->headers_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
+ gdk_window_set_user_data (priv->headers_window, msg_view);
+
+ if (priv->headers_box)
+ gtk_widget_set_parent_window (priv->headers_box, priv->headers_window);
+
+ attributes.x = -hadj->value;
+ if (priv->headers_box)
+ attributes.y = GTK_WIDGET (priv->headers_box)->allocation.height - vadj->value;
+ else
+ attributes.y = -vadj->value;
+ attributes.width = hadj->upper;
+ if (priv->headers_box)
+ attributes.height = vadj->upper - GTK_WIDGET (priv->headers_box)->allocation.height;
+ else
+ attributes.height = vadj->upper;
+ attributes.event_mask = event_mask;
+
+ priv->html_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
+ gdk_window_set_user_data (priv->html_window, msg_view);
+
+ if (priv->html_scroll)
+ gtk_widget_set_parent_window (priv->html_scroll, priv->html_window);
+
+ widget->style = gtk_style_attach (widget->style, widget->window);
+ gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
+ gtk_style_set_background (widget->style, priv->headers_window, GTK_STATE_NORMAL);
+ gtk_style_set_background (widget->style, priv->html_window, GTK_STATE_NORMAL);
+
+ gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
+ GTK_SHADOW_NONE,
+ NULL, widget, "msgviewheaders",
+ 0,0,-1,-1);
+ gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
+ GTK_SHADOW_NONE,
+ NULL, widget, "msgviewcontents",
+ 0,0,-1,-1);
+
+ gdk_window_show (priv->view_window);
+ gdk_window_show (priv->headers_window);
+ gdk_window_show (priv->html_window);
+
+}
+
+static void
+unrealize (GtkWidget *widget)
+{
+ ModestMsgView *msg_view = MODEST_MSG_VIEW (widget);
+ ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
+
+ gdk_window_set_user_data (priv->view_window, NULL);
+ gdk_window_destroy (priv->view_window);
+ priv->view_window = NULL;
+
+ gdk_window_set_user_data (priv->headers_window, NULL);
+ gdk_window_destroy (priv->headers_window);
+ priv->headers_window = NULL;
+
+ gdk_window_set_user_data (priv->html_window, NULL);
+ gdk_window_destroy (priv->html_window);
+ priv->html_window = NULL;
+
+ if (GTK_WIDGET_CLASS (parent_class)->unrealize)
+ ( * GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
+
+}
+
+static gint
+expose (GtkWidget *widget,
+ GdkEventExpose *event)
+{
+ ModestMsgView *msg_view;
+ ModestMsgViewPrivate *priv;
+
+ if (GTK_WIDGET_DRAWABLE (widget)) {
+ msg_view = MODEST_MSG_VIEW (widget);
+ priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
+ if (event->window == widget->window) {
+ gtk_paint_shadow (widget->style, widget->window,
+ GTK_STATE_NORMAL, priv->shadow_type,
+ &event->area, widget, "msgview",
+ 0,0,-1,-1);
+ } else if (event->window == priv->headers_window) {
+ gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
+ GTK_SHADOW_NONE,
+ &event->area, widget, "msgviewheaders",
+ 0,0,-1,-1);
+ } else if (event->window == priv->html_window) {
+ gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
+ GTK_SHADOW_NONE,
+ &event->area, widget, "msgviewcontents",
+ 0,0,-1,-1);
+ }
+ if (priv->headers_box)
+ gtk_container_propagate_expose (GTK_CONTAINER (msg_view), priv->headers_box, event);
+ if (priv->html_scroll)
+ gtk_container_propagate_expose (GTK_CONTAINER (msg_view), priv->html_scroll, event);
+ (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
+ }
+
+ return FALSE;
+}
+
+static void
+forall (GtkContainer *container,
+ gboolean include_internals,
+ GtkCallback callback,
+ gpointer userdata)
+{
+ ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (container);
+ g_return_if_fail (callback != NULL);
+
+ if (priv->headers_box)
+ (*callback) (priv->headers_box, userdata);
+ if (priv->html_scroll)
+ (*callback) (priv->html_scroll, userdata);
+}
+
+static void
+container_remove (GtkContainer *container,
+ GtkWidget *widget)
+{
+ gboolean was_visible = FALSE;
+ ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (container);
+ was_visible = GTK_WIDGET_VISIBLE (widget);
+ if (widget == priv->headers_box) {
+ gtk_widget_unparent (priv->headers_box);
+ priv->headers_box = NULL;
+ } else if (widget == priv->html_scroll) {
+ gtk_widget_unparent (priv->html_scroll);
+ priv->html_scroll = NULL;
+ } else {
+ return;
+ }
+ if (was_visible)
+ gtk_widget_queue_resize (GTK_WIDGET(container));
+
+}
+
+static void
+size_request (GtkWidget *widget,
+ GtkRequisition *req)
+{
+ ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (widget);
+ GtkRequisition child_req;
+
+ req->width = 0;
+ req->height = 0;
+
+ gtk_widget_size_request (priv->headers_box, &child_req);
+ req->width = child_req.width;
+ req->height += child_req.height;
+ gtk_widget_size_request (priv->html_scroll, &child_req);
+ req->width = MAX (child_req.width, req->width);
+ req->height += child_req.height;
+
+}
+
+static void
+size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ ModestMsgView *msg_view = MODEST_MSG_VIEW (widget);
+ ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
+ gboolean hadj_value_changed, vadj_value_changed;
+ GtkAllocation headers_allocation, html_allocation, view_allocation;
+ GtkAdjustment *html_vadj;
+
+ if (GTK_WIDGET_MAPPED (widget) &&
+ priv->shadow_type != GTK_SHADOW_NONE &&
+ (allocation->width != widget->allocation.width ||
+ allocation->height != widget->allocation.height))
+ gdk_window_invalidate_rect (widget->window, NULL, FALSE);
+
+ widget->allocation = *allocation;
+ set_hadjustment_values (msg_view, &hadj_value_changed);
+ set_vadjustment_values (msg_view, &vadj_value_changed);
+
+ get_view_allocation (msg_view, &view_allocation);
+
+ headers_allocation.x = 0;
+ headers_allocation.y = 0;
+ headers_allocation.width = view_allocation.width;
+ if (priv->headers_box)
+ headers_allocation.height = GTK_WIDGET (priv->headers_box)->requisition.height;
+ else
+ headers_allocation.height = 0;
+
+ html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
+
+ html_allocation.x = 0;
+ html_allocation.y = headers_allocation.height;
+ html_allocation.width = view_allocation.width;
+ html_allocation.height = MAX ((gint) html_vadj->upper, (gint)(priv->vadj->upper - headers_allocation.height));
+
+ if (GTK_WIDGET_REALIZED (widget)) {
+ gdk_window_move_resize (widget->window,
+ allocation->x,
+ allocation->y,
+ allocation->width,
+ allocation->height);
+
+ gdk_window_move_resize (priv->view_window,
+ view_allocation.x,
+ view_allocation.y,
+ view_allocation.width,
+ view_allocation.height);
+ gdk_window_move_resize (priv->headers_window,
+ 0,
+ (gint) (- priv->vadj->value),
+ allocation->width,
+ headers_allocation.height);
+ gdk_window_move_resize (priv->html_window,
+ (gint) (- priv->hadj->value),
+ (gint) (html_allocation.y - priv->vadj->value),
+ (gint) priv->hadj->upper,
+ html_allocation.height);
+ }
+
+ if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
+ gtk_widget_size_allocate (priv->headers_box, &headers_allocation);
+ }
+ if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
+ html_allocation.x = 0;
+ html_allocation.y = 0;
+ html_allocation.width = (gint) priv->hadj->upper;
+ html_allocation.height = (gint) priv->vadj->upper - headers_allocation.height;
+ gtk_widget_size_allocate (priv->html_scroll, &html_allocation);
+ }
+ gtk_adjustment_changed (priv->hadj);
+ gtk_adjustment_changed (priv->vadj);
+
+ if (hadj_value_changed)
+ gtk_adjustment_value_changed (priv->hadj);
+ if (vadj_value_changed)
+ gtk_adjustment_value_changed (priv->vadj);
+
+}
+
+static void
+adjustment_value_changed (GtkAdjustment *adj, gpointer data)
+{
+ ModestMsgView *msg_view = NULL;
+ ModestMsgViewPrivate *priv = NULL;
+
+ g_return_if_fail (GTK_IS_ADJUSTMENT (adj));
+ g_return_if_fail (MODEST_IS_MSG_VIEW (data));
+
+ msg_view = MODEST_MSG_VIEW (data);
+ priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
+
+ if (GTK_WIDGET_REALIZED (msg_view)) {
+ GtkAdjustment *hadj = modest_msg_view_get_hadjustment (msg_view);
+ GtkAdjustment *vadj = modest_msg_view_get_vadjustment (msg_view);
+ gint headers_offset = 0;
+
+ gtk_widget_queue_resize (priv->html_scroll);
+
+ if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
+ gint old_x, old_y;
+ gint new_x, new_y;
+ gdk_window_get_position (priv->headers_window, &old_x, &old_y);
+ new_x = 0;
+ new_y = -vadj->value;
+
+ headers_offset = GTK_WIDGET(priv->headers_box)->allocation.height;
+
+ if (new_x != old_x || new_y != old_y) {
+ gdk_window_move (priv->headers_window, new_x, new_y);
+ gdk_window_process_updates (priv->headers_window, TRUE);
+ }
+ }
+
+ if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
+ gint old_x, old_y;
+ gint new_x, new_y;
+ gdk_window_get_position (priv->html_window, &old_x, &old_y);
+ new_x = -hadj->value;
+ new_y = headers_offset - vadj->value;
+
+ if (new_x != old_x || new_y != old_y) {
+ gdk_window_move (priv->html_window, new_x, new_y);
+ gdk_window_process_updates (priv->html_window, TRUE);
+ }
+ }
+
+ }
+}
+
+static void
+html_adjustment_changed (GtkAdjustment *adj,
+ gpointer userdata)
+{
+ ModestMsgView *msg_view = MODEST_MSG_VIEW (userdata);
+ ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
+ GtkAdjustment *html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
+ gboolean vadj_changed;
+ gint new_height;
+
+ g_signal_stop_emission_by_name (G_OBJECT (adj), "changed");
+
+ priv->html_scroll->requisition.height = html_vadj->upper;
+ if (html_vadj->upper == priv->html_scroll->allocation.height)
+ return;
+ priv->html_scroll->allocation.height = html_vadj->upper;
+
+ set_vadjustment_values (msg_view, &vadj_changed);
+
+ new_height = MAX ((gint) html_vadj->upper, (gint) (priv->vadj->upper - priv->headers_box->allocation.height));
+
+ gtk_adjustment_changed (priv->vadj);
+ if (GTK_WIDGET_DRAWABLE (priv->html_scroll)) {
+ gdk_window_resize (priv->html_window, (gint) priv->hadj->upper, (gint) new_height);
+ gdk_window_process_updates (priv->view_window, TRUE);
+ gtk_container_resize_children (GTK_CONTAINER (msg_view));
+ }
+