static gboolean
idle_populate_proposals (GscProviderDevhelp *devhelp)
{
guint idx = 0;
if (devhelp->priv->view == NULL)
{
devhelp->priv->proposals = g_sequence_new ((GDestroyNotify)g_object_unref);
devhelp->priv->scrolled_window = gtk_scrolled_window_new (NULL, NULL);
devhelp->priv->view = dh_assistant_view_new ();
gtk_widget_show (devhelp->priv->view);
gtk_container_add (GTK_CONTAINER (devhelp->priv->scrolled_window),
devhelp->priv->view);
dh_assistant_view_set_base (DH_ASSISTANT_VIEW (devhelp->priv->view),
devhelp->priv->dhbase);
gtk_widget_set_size_request (devhelp->priv->scrolled_window,
400, 300);
devhelp->priv->populateptr = dh_base_get_keywords (devhelp->priv->dhbase);
}
while (idx < POPULATE_BATCH && devhelp->priv->populateptr)
{
DhLink *link = (DhLink *)devhelp->priv->populateptr->data;
gchar const *name = dh_link_get_name (link);
if (valid_link_type (dh_link_get_link_type (link)) &&
name != NULL && *name != '\0')
{
GscDevhelpItem *proposal = g_object_new (gsc_devhelp_item_get_type (),
NULL);
proposal->link = link;
proposal->word = string_for_compare (dh_link_get_name (proposal->link));
g_sequence_insert_sorted (devhelp->priv->proposals,
proposal,
(GCompareDataFunc)compare_two_items,
NULL);
}
++idx;
devhelp->priv->populateptr = g_list_next (devhelp->priv->populateptr);
}
return devhelp->priv->populateptr != NULL;
}
static void
gsc_provider_devhelp_update_info (GtkSourceCompletionProvider *provider,
GtkSourceCompletionProposal *proposal,
GtkSourceCompletionInfo *info)
{
GscProviderDevhelp *self = GSC_PROVIDER_DEVHELP (provider);
const gchar *uri = dh_link_get_name (((GscDevhelpItem *)proposal)->link);
dh_assistant_view_search (DH_ASSISTANT_VIEW (self->priv->view), uri);
}
static gchar *
gsc_devhelp_item_get_text_impl (GtkSourceCompletionProposal *proposal)
{
return g_strdup (dh_link_get_name (((GscDevhelpItem *)proposal)->link));
}
gboolean
dh_assistant_view_search (DhAssistantView *view,
const gchar *str)
{
DhAssistantViewPriv *priv;
const gchar *name;
DhLink *link;
DhLink *exact_link;
DhLink *prefix_link;
DhBookManager *book_manager;
GList *books;
g_return_val_if_fail (DH_IS_ASSISTANT_VIEW (view), FALSE);
g_return_val_if_fail (str, FALSE);
priv = GET_PRIVATE (view);
/* Filter out very short strings. */
if (strlen (str) < 4) {
return FALSE;
}
if (priv->current_search && strcmp (priv->current_search, str) == 0) {
return FALSE;
}
g_free (priv->current_search);
priv->current_search = g_strdup (str);
book_manager = dh_base_get_book_manager (dh_assistant_view_get_base (view));
prefix_link = NULL;
exact_link = NULL;
for (books = dh_book_manager_get_books (book_manager);
!exact_link && books;
books = g_list_next (books)) {
GList *l;
for (l = dh_book_get_keywords (DH_BOOK (books->data));
l && exact_link == NULL;
l = l->next) {
DhLinkType type;
link = l->data;
type = dh_link_get_link_type (link);
if (type == DH_LINK_TYPE_BOOK ||
type == DH_LINK_TYPE_PAGE ||
type == DH_LINK_TYPE_KEYWORD) {
continue;
}
name = dh_link_get_name (link);
if (strcmp (name, str) == 0) {
exact_link = link;
}
else if (g_str_has_prefix (name, str)) {
/* Prefer shorter prefix matches. */
if (!prefix_link) {
prefix_link = link;
}
else if (strlen (dh_link_get_name (prefix_link)) > strlen (name)) {
prefix_link = link;
}
}
}
}
if (exact_link) {
/*g_print ("exact hit: '%s' '%s'\n", exact_link->name, str);*/
dh_assistant_view_set_link (view, exact_link);
}
else if (prefix_link) {
/*g_print ("prefix hit: '%s' '%s'\n", prefix_link->name, str);*/
dh_assistant_view_set_link (view, prefix_link);
} else {
/*g_print ("no hit\n");*/
/*assistant_view_set_link (view, NULL);*/
return FALSE;
}
return TRUE;
}
/**
* dh_assistant_view_set_link:
* @view: an devhelp assistant view
* @link: the #DhLink
*
* Open @link in the assistant view, if %NULL the view will be blanked.
*
* Return value: %TRUE if the requested link is open, %FALSE otherwise.
**/
gboolean
dh_assistant_view_set_link (DhAssistantView *view,
DhLink *link)
{
DhAssistantViewPriv *priv;
gchar *uri;
const gchar *anchor;
gchar *filename;
GMappedFile *file;
const gchar *contents;
gsize length;
gchar *key;
gsize key_length;
gsize offset = 0;
const gchar *start;
const gchar *end;
g_return_val_if_fail (DH_IS_ASSISTANT_VIEW (view), FALSE);
priv = GET_PRIVATE (view);
if (priv->link == link) {
return TRUE;
}
if (priv->link) {
dh_link_unref (priv->link);
priv->link = NULL;
}
if (link) {
link = dh_link_ref (link);
} else {
webkit_web_view_load_uri (WEBKIT_WEB_VIEW (view), "about:blank");
return TRUE;
}
uri = dh_link_get_uri (link);
anchor = strrchr (uri, '#');
if (anchor) {
filename = g_strndup (uri, anchor - uri);
anchor++;
g_free (uri);
} else {
g_free (uri);
return FALSE;
}
if (g_str_has_prefix (filename, "file://"))
offset = 7;
file = g_mapped_file_new (filename + offset, FALSE, NULL);
if (!file) {
g_free (filename);
return FALSE;
}
contents = g_mapped_file_get_contents (file);
length = g_mapped_file_get_length (file);
key = g_strdup_printf ("<a name=\"%s\"", anchor);
key_length = strlen (key);
start = find_in_buffer (contents, key, length, key_length);
g_free (key);
end = NULL;
if (start) {
const gchar *start_key;
const gchar *end_key;
length -= start - contents;
start_key = "<pre class=\"programlisting\">";
start = find_in_buffer (start,
start_key,
length,
strlen (start_key));
end_key = "<div class=\"refsect";
if (start) {
end = find_in_buffer (start, end_key,
length - strlen (start_key),
strlen (end_key));
if (!end) {
end_key = "<div class=\"footer";
end = find_in_buffer (start, end_key,
length - strlen (start_key),
strlen (end_key));
}
}
}
if (start && end) {
gchar *buf;
gboolean break_line;
const gchar *function;
gchar *stylesheet;
gchar *javascript;
gchar *html;
buf = g_strndup (start, end-start);
/* Try to reformat function signatures so they take less
* space and look nicer. Don't reformat things that don't
* look like functions.
*/
switch (dh_link_get_link_type (link)) {
case DH_LINK_TYPE_FUNCTION:
break_line = TRUE;
function = "onload=\"reformatSignature()\"";
break;
case DH_LINK_TYPE_MACRO:
break_line = TRUE;
function = "onload=\"cleanupSignature()\"";
break;
default:
break_line = FALSE;
function = "";
break;
}
if (break_line) {
gchar *name;
name = strstr (buf, dh_link_get_name (link));
if (name && name > buf) {
name[-1] = '\n';
}
}
stylesheet = dh_util_build_data_filename ("devhelp",
"assistant",
"assistant.css",
NULL);
javascript = dh_util_build_data_filename ("devhelp",
"assistant",
"assistant.js",
NULL);
html = g_strdup_printf (
"<html>"
"<head>"
"<link rel=\"stylesheet\" type=\"text/css\" href=\"file://%s\"/>"
"<script src=\"file://%s\"></script>"
"</head>"
"<body %s>"
"<div class=\"title\">%s: <a href=\"%s\">%s</a></div>"
"<div class=\"subtitle\">%s %s</div>"
"<div class=\"content\">%s</div>"
"</body>"
"</html>",
stylesheet,
javascript,
function,
dh_link_get_type_as_string (link),
dh_link_get_uri (link),
dh_link_get_name (link),
_("Book:"),
dh_link_get_book_name (link),
buf);
g_free (buf);
g_free (stylesheet);
g_free (javascript);
priv->snippet_loaded = FALSE;
webkit_web_view_load_string (
WEBKIT_WEB_VIEW (view),
html,
"text/html",
NULL,
filename);
g_free (html);
} else {
webkit_web_view_load_uri (WEBKIT_WEB_VIEW (view), "about:blank");
}
#if GLIB_CHECK_VERSION(2,21,3)
g_mapped_file_unref (file);
#else
g_mapped_file_free (file);
#endif
g_free (filename);
return TRUE;
}
