1 files changed, 485 insertions, 0 deletions
diff --git a/lib/tv/src/tv_db_search.erl b/lib/tv/src/tv_db_search.erl
new file mode 100644
index 0000000000..edd3c188e2
--- /dev/null
+++ b/lib/tv/src/tv_db_search.erl
@@ -0,0 +1,485 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 1998-2009. All Rights Reserved.
+%% 
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%% 
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%% 
+%% %CopyrightEnd%
+%%%*********************************************************************
+%%% 
+%%%   Description:      Code for the search window.
+%%%
+%%%*********************************************************************
+-module(tv_db_search).
+
+
+
+-export([create_window/1,
+	 resize_window/1,
+	 reset_window/1,
+	 destroy_window/1,
+	 mark_busy/1,
+	 mark_nonbusy/1,
+	 get_input_and_search/3,
+	 update_search/4,
+	 string_to_term/1
+	]).
+
+
+
+
+-include("tv_int_def.hrl").
+-include("tv_int_msg.hrl").
+-include("tv_db_int_def.hrl").
+
+
+
+
+-define(WIN_WIDTH, 445).
+-define(SMALL_WIN_HEIGHT, 117).
+-define(BIG_WIN_HEIGHT, 335).
+-define(FRAME_WIDTH, 429).  % 334
+-define(OLD_FRAME_WIDTH, 334). 
+-define(FRAME_HEIGHT, 105).
+-define(FRAME_XPOS, (10-2)).
+-define(FRAME_YPOS, 10).
+-define(ENTRY_XPOS, 9).
+-define(ENTRY_YPOS, 31).
+-define(ENTRY_WIDTH, (?OLD_FRAME_WIDTH-10-2*?ENTRY_XPOS-5)).
+-define(LISTBOX_WIDTH, ?WIN_WIDTH-2*?FRAME_XPOS+1).
+-define(LISTBOX_HEIGHT, 162).
+-define(LISTBOX_XPOS, ?FRAME_XPOS-2).
+-define(LISTBOX_YPOS, ?SMALL_WIN_HEIGHT+8).
+-define(BTN_WIDTH, 80).
+-define(BTN_HEIGHT, 30).
+-define(BTN_XPOS, ?OLD_FRAME_WIDTH-6).
+-define(BG_COLOUR, {217,217,217}).
+
+
+
+
+
+
+create_window(true) ->
+    gs:config(win, [raise]);
+create_window(false) ->
+    gs:window(win, gs:start(), [{width,?WIN_WIDTH},
+				{height,?SMALL_WIN_HEIGHT},
+				{data,small},
+				{bg,?BG_COLOUR},
+				{title,"[TV]   Search Object"},
+				{destroy,true},
+				{configure,true},
+				{cursor,arrow}
+			       ]),
+
+    F = gs:frame(win, [{width,?FRAME_WIDTH},
+		       {height,?FRAME_HEIGHT},
+		       {x,?FRAME_XPOS},
+		       {y,?FRAME_YPOS},
+		       {bw,2},
+		       {bg,?BG_COLOUR}
+		      ]),
+
+    gs:label(F, [{width,80},
+		 {height,25},
+		 {x,?ENTRY_XPOS+2},
+		 {y,8},
+		 {align,w},
+		 {bg,?BG_COLOUR},
+		 {fg, {0,0,0}},
+		 {label, {text,"Search for:"}}
+		]),
+
+    gs:entry(entry, F, [{width,?ENTRY_WIDTH},
+			{height,30},
+			{x,?ENTRY_XPOS},
+			{y,?ENTRY_YPOS},
+			{insert, {0,"<Search expression>"}},
+			{bg, {255,255,255}},
+			{fg, {0,0,0}},
+			{cursor,text},
+			{justify,left},
+			{keypress,true},
+			{setfocus,true}
+		       ]),
+
+    Group = list_to_atom("expr" ++ pid_to_list(self())),
+    RadioWidth = round(?ENTRY_WIDTH / 2),
+    gs:radiobutton(expr_term, F, [{width,RadioWidth - 45},
+				  {height,25},
+				  {x,?ENTRY_XPOS},
+				  {y,?ENTRY_YPOS+40},
+				  {group,Group},
+				  {align, c},
+				  {label,{text,"as term"}},
+				  {select,true}
+				 ]),
+    gs:radiobutton(expr_regexp, F, [{width,RadioWidth + 45},
+				    {height,25},
+				    {x,?ENTRY_XPOS+RadioWidth-20-26},
+				    {y,?ENTRY_YPOS+40},
+				    {group,Group},
+				    {align,c},
+				    {label,{text,"as regular expression"}}
+				   ]),
+        
+    gs:button(search, F, [{width,?BTN_WIDTH},
+			  {height,?BTN_HEIGHT},
+			  {x,?BTN_XPOS},
+			  {y,11},
+			  {label, {text,"Search"}},
+			  {bg,?BG_COLOUR},
+			  {fg, {0,0,0}}
+			 ]),
+    gs:button(cancel, F, [{width,?BTN_WIDTH},
+			  {height,?BTN_HEIGHT},
+			  {x,?BTN_XPOS},
+			  {y,?BTN_HEIGHT+11+10},
+			  {label, {text,"Cancel"}},
+			  {data,cancel},
+			  {bg,?BG_COLOUR},
+			  {fg, {0,0,0}}
+			 ]),
+    expand_window(),
+    gs:config(entry, [{select, {0,1000}}]),
+    gs:config(win, [{map,true}]).
+    
+			    
+
+
+resize_window(false) ->
+    done;
+resize_window(true) ->
+    gs:config(win, [{width,?WIN_WIDTH},
+		    {height,?BIG_WIN_HEIGHT}
+		   ]).
+			    
+
+
+		   
+reset_window(false) ->
+    done;
+reset_window(true) ->
+    gs:config(listbox, [clear]),
+    gs:config(objects_found, [{label, {text,""}}]).
+
+
+				
+
+destroy_window(false) ->
+    done;
+destroy_window(true) ->
+    gs:destroy(win).
+
+
+
+mark_busy(false) ->
+    done;
+mark_busy(true) ->
+    gs:config(win, [{cursor,busy}]),
+    gs:config(entry, [{cursor,busy}]).
+    
+
+
+
+mark_nonbusy(false) ->
+    done;
+mark_nonbusy(true) ->
+    gs:config(win, [{cursor,arrow}]),
+    gs:config(entry, [{cursor,text}]).
+
+	    
+
+
+get_input_and_search(DbList, IsRegExp, ListAsStr) ->
+    get_input_and_search(DbList, IsRegExp, true, ListAsStr).
+    
+
+
+
+get_input_and_search(DbList, IsRegExp, Notify, ListAsStr) ->
+    Str = get_entry_text(),
+    StrConvRes = case IsRegExp of 
+		     true ->
+			 string_to_regexp(Str);
+		     false ->
+			 string_to_term(Str)
+		 end,
+
+    case StrConvRes of
+	{ok, TermOrRE} ->
+	    search(IsRegExp, TermOrRE, DbList, ListAsStr);
+	{error, {_Reason, Msg}} when Notify ->
+	    gs:config(win, [beep]),
+	    tv_utils:notify(win, "TV Notification", Msg);
+	{error, {_Reason, _Msg}} ->
+	    done
+    end.
+
+
+
+update_search(false, _DbList, _IsRegExp, _ListAsStr) ->
+    done;
+update_search(true, DbList, true, ListAsStr) ->
+    get_input_and_search(DbList, false, false, ListAsStr);
+update_search(true, DbList, false, ListAsStr) ->
+    get_input_and_search(DbList, true, false, ListAsStr).
+    
+	    
+
+get_entry_text() ->
+    gs:read(entry,text).
+
+
+
+string_to_regexp(Str) ->
+    case regexp:parse(Str) of
+	{ok, RegExp} ->
+	    {ok, RegExp};
+	_Error ->
+	    case get(error_msg_mode) of
+		normal ->
+		    {error, {not_a_regexp, "Please enter a regular expression!"}};
+		haiku ->
+		    {error, {not_a_regexp, ["Being incorrect",
+					    "The regular expression",
+					    "Must now be retyped."]}}
+	    end
+    end.
+
+
+
+string_to_term(Str) ->
+    case catch erl_scan:string(Str ++ ". ") of
+	{ok, ScannedStr, _No} ->
+	    case erl_parse:parse_term(ScannedStr) of
+		{ok, Term} ->
+		    {ok, Term};
+		_Other ->
+		       %% May be a PID, have to check this, since erl_scan
+		       %% currently cannot handle this case...  :-(
+		    case catch list_to_pid(Str) of
+			Pid when is_pid(Pid) ->
+			    {ok, Pid};
+			_Error ->
+			    case get(error_msg_mode) of
+				normal ->
+				    {error, {not_a_term, "Please enter a valid term!"}};
+				haiku ->
+				    {error, {not_a_term, ["Aborted effort.",
+							  "Reflect, repent and retype:",
+							  "Enter valid term."]}}
+			    end
+		    end
+	    end;
+	_Error ->
+	    case get(error_msg_mode) of
+		normal ->
+		    {error, {not_a_term, "Please enter a valid term!"}};
+		haiku ->
+		    {error, {not_a_term, ["Aborted effort.",
+					  "Reflect, repent and retype:",
+					  "Enter valid term."]}}
+	    end
+    end.
+    
+
+
+search(IsRegExp, SearchValue, DbList, ListAsStr) ->
+    gs:config(cancel, [{label, {text,"Stop"}}]),
+    mark_busy(true),
+    reset_window(true),
+    SearchRes = traverse(SearchValue, DbList, 1, length(DbList), [], IsRegExp, ListAsStr),
+    gs:config(cancel, [{label, {text,"Cancel"}}]),
+    mark_nonbusy(true),
+    SearchRes.
+
+
+
+
+
+expand_window() ->
+    gs:listbox(listbox, win, [{width,?LISTBOX_WIDTH},
+			      {height,?LISTBOX_HEIGHT},
+			      {x,?LISTBOX_XPOS},
+			      {y,?LISTBOX_YPOS},
+			      {bg, {255,255,255}},
+			      {fg, {0,0,0}},
+			      {scrollbg,?BG_COLOUR},
+			      {scrollfg,?BG_COLOUR},
+			      {hscroll,bottom},
+			      {vscroll,right},
+			      {click,true},
+			      {doubleclick,false},
+			      {selectmode,single}
+			     ]),
+    gs:label(objects_found, win, [{width,?LISTBOX_WIDTH},
+				  {height,25},
+				  {x,?LISTBOX_XPOS},
+				  {y,?LISTBOX_YPOS+?LISTBOX_HEIGHT+13},
+				  {align,w},
+				  {bg,?BG_COLOUR},
+				  {fg, {0,0,0}}
+				 ]),
+    gs:config(win, [{width,?WIN_WIDTH},
+		    {height,?BIG_WIN_HEIGHT}
+		   ]).
+    
+
+
+    
+
+
+
+traverse(Pattern, [Object | T], Row, Length, Acc, IsRegExp, ListAsStr) ->
+    SearchRes = 
+	case IsRegExp of
+	    true ->
+		search_for_regexp(Pattern, Object, ListAsStr);
+	    false ->
+		compare_terms(Pattern, Object)
+	end,
+
+    NewAcc 
+	= case SearchRes of
+	      found ->
+		  RowStr    = integer_to_list(Row),
+		  LengthStr = integer_to_list(Length),
+		  ObjectStr = case ListAsStr of
+				  true ->
+				      lists:flatten(tv_io_lib:format("~p", [Object]));
+				  false ->
+				      lists:flatten(tv_io_lib:write(Object))
+			      end,
+		  
+		  gs:config(listbox, 
+			    [{add,
+			      "  Row " ++ RowStr ++ ":" ++
+			      lists:duplicate(length(LengthStr)-length(RowStr), " ") ++ 
+			      "   " ++ ObjectStr}
+			    ]),
+		  gs:config(objects_found, 
+			    [{label, 
+			      {text,integer_to_list(length(Acc)+1) ++ 
+			       " object(s) found"}}
+			    ]),
+		  [{Row,Object} | Acc];
+	      not_found ->
+		  Acc
+	  end,
+    receive 
+	{gs,cancel,click,_Data,_Args} ->
+	    gs:config(objects_found, 
+		      [{label, 
+			{text,integer_to_list(gs:read(listbox,size)) ++ 
+			 " object(s) found"}}
+		      ]),
+	    lists:reverse(NewAcc)
+    after 
+	0 ->
+	    traverse(Pattern, T, Row+1, Length, NewAcc, IsRegExp, ListAsStr)
+    end;
+traverse(_Pattern, [], _N, _Length, Acc, _IsRegExp, _ListAsStr) ->
+    gs:config(objects_found, 
+	      [{label, 
+		{text,integer_to_list(gs:read(listbox,size)) ++ 
+		 " object(s) found"}}
+	      ]),
+    lists:reverse(Acc).
+
+
+
+
+search_for_regexp(Pattern, Elem, ListAsStr) -> 
+    ListToSearch = 
+	case ListAsStr of
+	    true ->
+		lists:flatten(tv_io_lib:format("~p", [Elem]));
+	    false ->
+		lists:flatten(tv_io_lib:write(Elem))
+	end,
+
+    case regexp:first_match(ListToSearch, Pattern) of
+	{match, _, _} ->
+	    found;
+	_Other ->
+	    not_found
+	    %% The code below shall be used instead if it is desired to 
+	    %% compare each *element* in the tuples to the regular expression,
+	    %% i.e., treat each element as a new line/string.
+	    %% The difference is most easily explained through an example:
+	    %% If we treat each tuple as a new line/string, the regular expression
+	    %% "^{win" will match the string "{win, 1, 2, 3}", but not the string 
+	    %% "{1, {win,2}}".
+	    %% If we treat each element as a new line/string, the RE "^{win" will match
+	    %% both strings above.
+    
+	    %% SearchList = tuple_to_list(Elem),
+	    %% case lists:dropwhile(
+	    %%	   fun(H) ->
+	    %%		   nomatch == regexp:first_match(lists:flatten(io_lib:write(H)), 
+	    %%						 Pattern)
+	    %%	   end,
+	    %%	   SearchList) of
+	    %%	[] ->
+	    %%	    not_found;
+	    %%	_AnyList ->
+	    %%	    found
+	    %% end
+    end.
+
+
+
+
+
+compare_terms(Term, Elem) when not is_tuple(Elem), not is_list(Elem), Term =/= Elem ->
+    not_found;
+compare_terms(Term, Term) ->
+       %% Even the case Term = "{}" or "[]"!!!
+    found;
+compare_terms(Term, Elem) when is_list(Elem) ->
+    traverse_list(Term, Elem);
+compare_terms(Term, Elem) when is_tuple(Elem) ->
+    traverse_tuple(Term, Elem, 1, size(Elem)).
+
+
+
+	
+
+traverse_tuple(Pattern, Tuple, N, Stop) when N =< Stop ->
+    Elem = element(N,Tuple),
+    case compare_terms(Pattern, Elem) of
+	found ->
+	    found;
+	not_found ->
+	    traverse_tuple(Pattern, Tuple, N+1, Stop)
+    end;
+traverse_tuple(_Pattern, _Tuple, N, Stop) when N > Stop ->
+    not_found.
+
+
+
+
+
+
+traverse_list(Pattern, [H | T]) ->
+    case compare_terms(Pattern, H) of
+	found ->
+	    found;
+	not_found ->
+	    traverse_list(Pattern, T)
+    end;
+traverse_list(_Pattern, []) ->
+    not_found.
+