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Add functions for checking if back/forward/stop/reload actions are currently available for a given browser window.

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svn path=/trunk/netsurf/; revision=6827
This commit is contained in:
Michael Drake 2009-03-23 22:22:30 +00:00
parent 972cd147aa
commit 0a7e10819b
2 changed files with 64 additions and 5 deletions
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64
desktop/browser.c
View File

@ -270,7 +270,7 @@ void browser_window_go_unverifiable(struct browser_window *bw,
*
* If post_urlenc and post_multipart are 0 the url is fetched using GET.
*
* The page is not added to the window history if add_to_history is false.
* The page is not added to the window history if add_to_history is false.
* This should be used when returning to a page in the window history.
*/
@ -697,7 +697,7 @@ void browser_window_refresh(void *p)
add_to_history = false;
/* Treat an (almost) immediate refresh in a top-level browser window as
* if it were an HTTP redirect, and thus make the resulting fetch
* if it were an HTTP redirect, and thus make the resulting fetch
* verifiable.
*
* See fetchcache.c for why redirected fetches should be verifiable at
@ -794,10 +794,10 @@ void browser_window_update(struct browser_window *bw)
if (!history_get_current_scroll(bw->history, &sx, &sy))
sx = -1;
/* if the page was scrolled before return to that position */
if (sx != -1) {
gui_window_set_scroll(bw->window, sx, sy);
gui_window_set_scroll(bw->window, sx, sy);
/* if frag_id exists, then try to scroll to it */
} else if (bw->frag_id && bw->current_content->type == CONTENT_HTML) {
if ((pos = box_find_by_id(bw->current_content->data.html.layout, bw->frag_id)) != 0) {
@ -805,7 +805,7 @@ void browser_window_update(struct browser_window *bw)
gui_window_set_scroll(bw->window, x, y);
}
} else
gui_window_set_scroll(bw->window, 0, 0);
gui_window_set_scroll(bw->window, 0, 0);
gui_window_redraw_window(bw->window);
}
@ -2798,3 +2798,57 @@ void browser_window_page_drag_start(struct browser_window *bw, int x, int y)
gui_window_scroll_start(bw->window);
}
/**
* Check availability of Back action for a given browser window
*
* \param bw browser window
* \return true if Back action is available
*/
bool browser_window_back_available(struct browser_window *bw)
{
return (bw && bw->history && history_back_available(bw->history));
}
/**
* Check availability of Forward action for a given browser window
*
* \param bw browser window
* \return true if Forward action is available
*/
bool browser_window_forward_available(struct browser_window *bw)
{
return (bw && bw->history && history_forward_available(bw->history));
}
/**
* Check availability of Reload action for a given browser window
*
* \param bw browser window
* \return true if Reload action is available
*/
bool browser_window_reload_available(struct browser_window *bw)
{
return (bw && bw->current_content && !bw->loading_content);
}
/**
* Check availability of Stop action for a given browser window
*
* \param bw browser window
* \return true if Stop action is available
*/
bool browser_window_stop_available(struct browser_window *bw)
{
return (bw && (bw->loading_content ||
(bw->current_content &&
(bw->current_content->status != CONTENT_STATUS_DONE))));
}

5
desktop/browser.h
View File

@ -250,6 +250,11 @@ void browser_form_submit(struct browser_window *bw, struct browser_window *targe
void browser_window_redraw_rect(struct browser_window *bw, int x, int y,
int width, int height);
bool browser_window_back_available(struct browser_window *bw);
bool browser_window_forward_available(struct browser_window *bw);
bool browser_window_reload_available(struct browser_window *bw);
bool browser_window_stop_available(struct browser_window *bw);
/* In platform specific hotlist.c. */
void hotlist_visited(struct content *content);