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path: root/lib/observer/src/cdv_html_wx.erl
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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2013. 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%
-module(cdv_html_wx).

-behaviour(wx_object).

-export([start_link/2]).
%% wx_object callbacks
-export([init/1, handle_info/2, terminate/2, code_change/3, handle_call/3,
	 handle_event/2, handle_cast/2]).

-include_lib("wx/include/wx.hrl").
-include("observer_defs.hrl").

%% Records
-record(state,
	{panel,
	 expand_table,
	 expand_wins=[]}).

start_link(ParentWin, Info) ->
    wx_object:start_link(?MODULE, [ParentWin, Info], []).

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

init([ParentWin, Fun]) when is_function(Fun) ->
    init([ParentWin, Fun()]);
init([ParentWin, {expand,HtmlText,Tab}]) ->
    HtmlWin = observer_lib:html_window(ParentWin),
    wxHtmlWindow:setPage(HtmlWin,HtmlText),
    {HtmlWin, #state{panel=HtmlWin,expand_table=Tab}};
init([ParentWin, HtmlText]) ->
    HtmlWin = observer_lib:html_window(ParentWin),
    wxHtmlWindow:setPage(HtmlWin,HtmlText),
    {HtmlWin, #state{panel=HtmlWin}}.

%%%%%%%%%%%%%%%%%%%%%%% Callbacks %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

handle_info(active, State) ->
    {noreply, State};

handle_info(Info, State) ->
    io:format("~p:~p: Unhandled info: ~p~n", [?MODULE, ?LINE, Info]),
    {noreply, State}.

terminate(_Reason, _State) ->
    ok.

code_change(_, _, State) ->
    {ok, State}.

handle_call(Msg, _From, State) ->
    io:format("~p~p: Unhandled Call ~p~n",[?MODULE, ?LINE, Msg]),
    {reply, ok, State}.

handle_cast({detail_win_closed, Id},#state{expand_wins=Opened0}=State) ->
    Opened = lists:keydelete(Id, 1, Opened0),
    {noreply, State#state{expand_wins=Opened}};

handle_cast(Msg, State) ->
    io:format("~p~p: Unhandled cast ~p~n",[?MODULE, ?LINE, Msg]),
    {noreply, State}.

handle_event(#wx{event=#wxHtmlLink{type=command_html_link_clicked,
				   linkInfo=#wxHtmlLinkInfo{href=Target}}},
	     #state{expand_table=Tab}=State) ->
    NewState=
	case Target of
	    "#Binary?" ++ BinSpec ->
		[{"offset",Off},{"size",Size},{"pos",Pos}] =
		    httpd:parse_query(BinSpec),
		Id = {cdv, {list_to_integer(Off),
			    list_to_integer(Size),
			    list_to_integer(Pos)}},
		expand(Id,cdv_bin_cb,State);
	    "#OBSBinary?" ++ BinSpec ->
		[{"key1",Preview},{"key2",Size},{"key3",Hash}] =
		    httpd:parse_query(BinSpec),
		Id = {obs, {Tab, {list_to_integer(Preview),
				  list_to_integer(Size),
				  list_to_integer(Hash)}}},
		expand(Id,cdv_bin_cb,State);
	    "#Term?" ++ TermKeys ->
		[{"key1",Key1},{"key2",Key2},{"key3",Key3}] =
		    httpd:parse_query(TermKeys),
		Id = {cdv, {Tab,{list_to_integer(Key1),
				 list_to_integer(Key2),
				 list_to_integer(Key3)}}},
		expand(Id,cdv_term_cb,State);
	    _ ->
		cdv_virtual_list_wx:start_detail_win(Target),
		State
    end,
    {noreply, NewState};

handle_event(Event, State) ->
    io:format("~p:~p: Unhandled event ~p\n", [?MODULE,?LINE,Event]),
    {noreply, State}.

%%%-----------------------------------------------------------------
%%% Internal
expand(Id,Callback,#state{expand_wins=Opened0}=State) ->
    Opened =
	case lists:keyfind(Id,1,Opened0) of
	    false ->
		EW = cdv_detail_wx:start_link(Id,State#state.panel,Callback),
		wx_object:get_pid(EW) ! active,
		[{Id,EW}|Opened0];
	    {_,EW} ->
		wxFrame:raise(EW),
		Opened0
	end,
    State#state{expand_wins=Opened}.