[evince] [libview] Add ev_page_cache_mark_dirty()

[Carlos Garcia Campos <carlosgc src gnome org>]

commit dfed06b88fae63bbd0460e43df977c0d33ef1045
Author: Carlos Garcia Campos <carlosgc gnome org>
Date:   Tue Jul 20 14:34:18 2010 +0200

    [libview] Add ev_page_cache_mark_dirty()
    
    Annotations might be added at runtime, in that case we need to mark
    cache as dirty to force a new job to get annotations.

 libview/ev-page-cache.c |   23 ++++++++++++++++++++---
 libview/ev-page-cache.h |    2 ++
 2 files changed, 22 insertions(+), 3 deletions(-)
---
diff --git a/libview/ev-page-cache.c b/libview/ev-page-cache.c
index cdec16c..c3c5704 100644
--- a/libview/ev-page-cache.c
+++ b/libview/ev-page-cache.c
@@ -34,6 +34,7 @@
 typedef struct _EvPageCacheData {
 	EvJob             *job;
 	gboolean           done : 1;
+	gboolean           dirty : 1;
 	EvJobPageDataFlags flags;
 
 	EvMappingList     *link_mapping;
@@ -179,10 +180,10 @@ ev_page_cache_get_flags_for_data (EvPageCache     *cache,
 {
 	EvJobPageDataFlags flags = EV_PAGE_DATA_INCLUDE_NONE;
 
-	if (data->flags == cache->flags)
+	if (data->flags == cache->flags && !data->dirty)
 		return cache->flags;
 
-	/* Flags changed */
+	/* Flags changed or data is dirty */
 	if (cache->flags & EV_PAGE_DATA_INCLUDE_LINKS) {
 		flags = (data->link_mapping) ?
 			flags & ~EV_PAGE_DATA_INCLUDE_LINKS :
@@ -270,6 +271,7 @@ job_page_data_finished_cb (EvJob       *job,
 	if (job_data->flags & EV_PAGE_DATA_INCLUDE_TEXT)
 		data->text = job_data->text;
 	data->done = TRUE;
+	data->dirty = FALSE;
 
 	g_object_unref (data->job);
 	data->job = NULL;
@@ -300,7 +302,7 @@ ev_page_cache_set_page_range (EvPageCache *cache,
 		EvPageCacheData   *data = &cache->page_list[i];
 		EvJobPageDataFlags flags;
 
-		if (data->flags == cache->flags && (data->done || data->job))
+		if (data->flags == cache->flags && !data->dirty && (data->done || data->job))
 			continue;
 
 		if (data->job)
@@ -339,6 +341,21 @@ ev_page_cache_set_flags (EvPageCache       *cache,
 	ev_page_cache_set_page_range (cache, cache->start_page, cache->end_page);
 }
 
+void
+ev_page_cache_mark_dirty (EvPageCache *cache,
+			  gint         page)
+{
+	EvPageCacheData *data;
+
+	g_return_if_fail (EV_IS_PAGE_CACHE (cache));
+
+	data = &cache->page_list[page];
+	data->dirty = TRUE;
+
+	/* Update the current range */
+	ev_page_cache_set_page_range (cache, cache->start_page, cache->end_page);
+}
+
 EvMappingList *
 ev_page_cache_get_link_mapping (EvPageCache *cache,
 				gint         page)
diff --git a/libview/ev-page-cache.h b/libview/ev-page-cache.h
index 4c2effb..1c2e5cd 100644
--- a/libview/ev-page-cache.h
+++ b/libview/ev-page-cache.h
@@ -47,6 +47,8 @@ void               ev_page_cache_set_page_range         (EvPageCache       *cach
 EvJobPageDataFlags ev_page_cache_get_flags              (EvPageCache       *cache);
 void               ev_page_cache_set_flags              (EvPageCache       *cache,
 							 EvJobPageDataFlags flags);
+void               ev_page_cache_mark_dirty             (EvPageCache       *cache,
+							 gint               page);
 EvMappingList     *ev_page_cache_get_link_mapping       (EvPageCache       *cache,
 							 gint               page);
 EvMappingList     *ev_page_cache_get_image_mapping      (EvPageCache       *cache,