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Change cursor if mouse is over link

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Thanks to MaximeC for the initial patch.

Signed-off-by: Sebastian Ramacher <sebastian+dev@ramacher.at>
This commit is contained in:
Sebastian Ramacher 2014-05-24 18:04:59 +02:00
parent e5449d0ce2
commit db9ee77f13
4 changed files with 71 additions and 0 deletions
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13
callbacks.c
View File

@ -590,3 +590,16 @@ cb_page_widget_image_selected(ZathuraPage* page, GdkPixbuf* pixbuf, void* data)
g_free(selection);
}
void
cb_page_widget_link(ZathuraPage* page, void* data)
{
g_return_if_fail(page != NULL);
bool enter = (bool) data;
GdkWindow* window = gtk_widget_get_parent_window(GTK_WIDGET(page));
GdkCursor* cursor = gdk_cursor_new(enter == true ? GDK_HAND1 : GDK_LEFT_PTR);
gdk_window_set_cursor(window, cursor);
g_object_unref(cursor);
}

4
callbacks.h
View File

@ -200,4 +200,8 @@ void cb_page_widget_text_selected(ZathuraPage* page, const char* text,
void cb_page_widget_image_selected(ZathuraPage* page, GdkPixbuf* pixbuf,
void* data);
void
cb_page_widget_link(ZathuraPage* page, void* data);
#endif // CALLBACKS_H

50
page-widget.c
View File

@ -51,6 +51,7 @@ typedef struct zathura_page_widget_private_s {
int x; /**< X coordinate */
int y; /**< Y coordinate */
} selection_basepoint;
bool over_link;
} mouse;
} zathura_page_widget_private_t;
@ -94,6 +95,8 @@ enum properties_e {
enum {
TEXT_SELECTED,
IMAGE_SELECTED,
ENTER_LINK,
LEAVE_LINK,
LAST_SIGNAL
};
@ -162,6 +165,26 @@ zathura_page_widget_class_init(ZathuraPageClass* class)
G_TYPE_NONE,
1,
G_TYPE_OBJECT);
signals[ENTER_LINK] = g_signal_new("enter-link",
ZATHURA_TYPE_PAGE,
G_SIGNAL_RUN_LAST,
0,
NULL,
NULL,
g_cclosure_marshal_generic,
G_TYPE_NONE,
0);
signals[LEAVE_LINK] = g_signal_new("leave-link",
ZATHURA_TYPE_PAGE,
G_SIGNAL_RUN_LAST,
0,
NULL,
NULL,
g_cclosure_marshal_generic,
G_TYPE_NONE,
0);
}
static void
@ -737,7 +760,34 @@ cb_zathura_page_widget_motion_notify(GtkWidget* widget, GdkEventMotion* event)
{
g_return_val_if_fail(widget != NULL, false);
g_return_val_if_fail(event != NULL, false);
if ((event->state & GDK_BUTTON1_MASK) == 0) {
zathura_page_widget_private_t* priv = ZATHURA_PAGE_GET_PRIVATE(widget);
if (priv->links.retrieved == false) {
priv->links.list = zathura_page_links_get(priv->page, NULL);
priv->links.retrieved = true;
priv->links.n = (priv->links.list == NULL) ? 0 : girara_list_size(priv->links.list);
}
if (priv->links.list != NULL && priv->links.n > 0) {
bool over_link = false;
GIRARA_LIST_FOREACH(priv->links.list, zathura_link_t*, iter, link)
zathura_rectangle_t rect = recalc_rectangle(priv->page, zathura_link_get_position(link));
if (rect.x1 <= event->x && rect.x2 >= event->x && rect.y1 <= event->y && rect.y2 >= event->y) {
over_link = true;
}
GIRARA_LIST_FOREACH_END(priv->links.list, zathura_link_t*, iter, link);
if (priv->mouse.over_link != over_link) {
if (over_link == true) {
g_signal_emit(ZATHURA_PAGE(widget), signals[ENTER_LINK], 0);
} else {
g_signal_emit(ZATHURA_PAGE(widget), signals[LEAVE_LINK], 0);
}
priv->mouse.over_link = over_link;
}
}
return false;
}

4
zathura.c
View File

@ -783,6 +783,10 @@ document_open(zathura_t* zathura, const char* path, const char* password,
G_CALLBACK(cb_page_widget_text_selected), zathura);
g_signal_connect(G_OBJECT(page_widget), "image-selected",
G_CALLBACK(cb_page_widget_image_selected), zathura);
g_signal_connect(G_OBJECT(page_widget), "enter-link",
G_CALLBACK(cb_page_widget_link), (gpointer) true);
g_signal_connect(G_OBJECT(page_widget), "leave-link",
G_CALLBACK(cb_page_widget_link), (gpointer) false);
}
/* view mode */