Before only visible part of screen was searched for pattern.
Now whole document is searched, and beginings of found text
is remembered in document->search_points.
Currently, it is possible for the JSObject that wraps a struct view_state
to outlive the view_state. Using the properties of the JSObject wrapper
will then cause a crash.
This patch adds a smjs_detach_view_state_object function, which is called
in destroy_vs, to dissociate the struct view_state from the JSObject
wrapper. To this end, the patch modifies the struct view_state to point
the JSObject wrapper. smjs_get_view_state_object will use this pointer
if it is set, and copy_vs will copy this pointer to the new view_state.
The patch also modifies view_state_get_property and
view_state_set_property to return immediately if the view_state has been
destroyed. Finally, the patch adds a finalizer (view_state_finalize)
that clears the pointer from the struct view_state to the JSObject.
Anything that frees struct form_view must now call the new function
ecmascript_detach_form_view. This function should then clear out any
dangling pointers, but that has not yet been implemented.
Anything that frees or reallocates struct form_state must now call the
new functions ecmascript_detach_form_state or ecmascript_moved_form_state.
These functions should then clear out any dangling pointers, but that has
not yet been implemented.
Commit 0b99fa70ca9d0f976655e61adee1a5eebacc0734 "Bug 620: Reset form
fields to default values on reload" made render_document() decrement
vs->form_info_len to 0 while vs->form_info remained non-NULL.
copy_vs() then copied the whole structure with copy_struct and did not
change form_info because form_info_len was 0. Both view_state
structures had form_info pointing to the same memory block, causing a
segfault when destroy_vs() tried to free that block a second time.
Reported by أحمد المحمودي.
Instead of saving the old link colours when selecting a link and using that
to restore them when unselecting it, just copy the data from the document.
- Eliminate struct link_bg and the .link_bg and .link_bg_n members
of struct document_view.
- Eliminate the free_link routine and don't call it from draw_doc,
clear_link, or detach_formatted.
- Add a .old_current_link member to struct view_state and initialise it in
init_vs.
- Don't save link_bg in draw_current_link.
- Rewrite clear_link to use the document data instead of link_bg.
- Modify init_link_drawing not to allocate ling_bg and to return a pointer
to a static variable for the template character.
