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HTML handler for contextual content requests.

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svn path=/trunk/netsurf/; revision=12754
This commit is contained in:
Michael Drake 2011-09-06 18:08:18 +00:00
parent 4075648e7a
commit 6167cc8508
1 changed files with 50 additions and 0 deletions
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50
render/html.c
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@ -76,6 +76,8 @@ static void html_open(struct content *c, struct browser_window *bw,
struct object_params *params);
static void html_close(struct content *c);
struct selection *html_get_selection(struct content *c);
static void html_get_contextual_content(struct content *c,
int x, int y, struct contextual_content *data);
struct search_context *html_get_search(struct content *c);
static nserror html_clone(const struct content *old, struct content **newc);
static content_type html_content_type(void);
@ -119,6 +121,7 @@ static const content_handler html_content_handler = {
.open = html_open,
.close = html_close,
.get_selection = html_get_selection,
.get_contextual_content = html_get_contextual_content,
.clone = html_clone,
.type = html_content_type,
.no_share = true,
@ -2115,6 +2118,53 @@ struct selection *html_get_selection(struct content *c)
}
/**
* Get access to any content, link URLs and objects (images) currently
* at the given (x, y) coordinates.
*
* \param c html content to look inside
* \param x x-coordinate of point of interest
* \param y y-coordinate of point of interest
* \param data pointer to contextual_content struct. Its fields are updated
* with pointers to any relevent content, or set to NULL if none.
*/
void html_get_contextual_content(struct content *c,
int x, int y, struct contextual_content *data)
{
html_content *html = (html_content *) c;
struct box *box = html->layout;
struct box *next;
int box_x = 0, box_y = 0;
hlcache_handle *containing_content = NULL;
while ((next = box_at_point(box, x, y, &box_x, &box_y,
&containing_content)) != NULL) {
box = next;
if (box->style && css_computed_visibility(box->style) ==
CSS_VISIBILITY_HIDDEN)
continue;
if (box->iframe)
browser_window_get_contextual_content(box->iframe,
x - box_x, y - box_y, data);
if (box->object)
data->object = box->object;
if (box->href)
data->link_url = box->href;
if (box->usemap) {
const char *target = NULL;
data->link_url = imagemap_get(html, box->usemap,
box_x, box_y, x, y, &target);
}
}
}
/**
* Set an HTML content's search context
*