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ada_gui-gnoga-gui-element-multimedia.adb
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-- Ada_GUI implementation based on Gnoga. Adapted 2021
-- --
-- GNOGA - The GNU Omnificent GUI for Ada --
-- --
-- G N O G A . G U I . E L E M E N T . M U L T I M E D I A --
-- --
-- B o d y --
-- --
-- --
-- Copyright (C) 2014 David Botton --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under terms of the GNU General Public License as published by the --
-- Free Software Foundation; either version 3, or (at your option) any --
-- later version. This library is distributed in the hope that it will be --
-- useful, but WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are --
-- granted additional permissions described in the GCC Runtime Library --
-- Exception, version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- For more information please go to http://www.gnoga.com --
------------------------------------------------------------------------------
package body Ada_GUI.Gnoga.Gui.Element.Multimedia is
----------
-- Play --
----------
procedure Play (Media : in out Multimedia_Type) is
begin
Media.Execute ("play()");
end Play;
-----------
-- Pause --
-----------
procedure Pause (Media : in out Multimedia_Type) is
begin
Media.Execute ("pause()");
end Pause;
----------
-- Load --
----------
procedure Load (Media : in out Multimedia_Type) is
begin
Media.Execute ("load()");
end Load;
function Can_Play (Media : Multimedia_Type; Media_Type : String)
return Boolean
is
begin
return Media.Execute ("canPlayType ('" & Media_Type & "')") /= "";
end Can_Play;
--------------------
-- Media_Duration --
--------------------
function Media_Duration (Media : Multimedia_Type) return Float is
begin
return Media.Property ("duration");
end Media_Duration;
------------------
-- Media_Source --
------------------
procedure Media_Source (Media : in out Multimedia_Type; Source : in String)
is
begin
Media.Property ("src", Source);
end Media_Source;
function Media_Source (Media : Multimedia_Type) return String is
begin
return Media.Property ("src");
end Media_Source;
--------------------
-- Media_Position --
--------------------
procedure Media_Position (Media : in out Multimedia_Type;
Seconds : in Float)
is
begin
Media.Property ("currentTime", Seconds);
end Media_Position;
function Media_Position (Media : Multimedia_Type) return Float is
begin
return Media.Property ("currentTime");
end Media_Position;
--------------------
-- Playback_Ended --
--------------------
function Playback_Ended (Media : Multimedia_Type) return Boolean is
begin
return Media.Property ("ended");
end Playback_Ended;
----------------
-- Loop_Media --
----------------
procedure Loop_Media (Media : in out Multimedia_Type; Value : Boolean) is
begin
Media.Property ("loop", Value);
end Loop_Media;
function Loop_Media (Media : Multimedia_Type) return Boolean is
begin
return Media.Property ("loop");
end Loop_Media;
-----------
-- Muted --
-----------
procedure Muted (Media : in out Multimedia_Type; Value : Boolean) is
begin
Media.Property ("muted", Value);
end Muted;
function Muted (Media : Multimedia_Type) return Boolean is
begin
return Media.Property ("muted");
end Muted;
------------
-- Paused --
------------
function Paused (Media : Multimedia_Type) return Boolean is
begin
return Media.Property ("paused");
end Paused;
-------------------
-- Playback_Rate --
-------------------
procedure Playback_Rate (Media : in out Multimedia_Type; Value : in Float)
is
begin
Media.Property ("playbackRate", Value);
end Playback_Rate;
function Playback_Rate (Media : Multimedia_Type) return Float is
begin
return Media.Property ("playbackRate");
end Playback_Rate;
-------------------
-- Ready_To_Play --
-------------------
function Ready_To_Play (Media : Multimedia_Type) return Boolean is
begin
return Media.Property ("readyState") /= 0;
end Ready_To_Play;
-------------
-- Seeking --
-------------
function Seeking (Media : Multimedia_Type) return Boolean is
begin
return Media.Property ("seeking");
end Seeking;
procedure Volume (Media : in out Multimedia_Type; Value : Volume_Range) is
begin
Media.Property ("volume", Value);
end Volume;
function Volume (Media : Multimedia_Type) return Volume_Range is
begin
return Media.Property ("volume");
end Volume;
------------
-- Create --
------------
procedure Create (Audio : in out Audio_Type;
Parent : in out Gnoga.Gui.Base_Type'Class;
Source : in String := "";
Controls : in Boolean := True;
Preload : in Boolean := False;
Autoplay : in Boolean := False;
Autoloop : in Boolean := False;
Muted : in Boolean := False;
ID : in String := "")
is
function Has_Controls return String;
function Has_Preload return String;
function Has_Autoplay return String;
function Has_Autoloop return String;
function Has_Muted return String;
function Has_Source return String;
function Has_Controls return String is
begin
if Controls then
return " controls";
else
return "";
end if;
end Has_Controls;
function Has_Preload return String is
begin
if Preload then
return Escape_Quotes (" preload='auto'");
else
return "";
end if;
end Has_Preload;
function Has_Autoplay return String is
begin
if Autoplay then
return " autoplay";
else
return "";
end if;
end Has_Autoplay;
function Has_Autoloop return String is
begin
if Autoloop then
return " loop";
else
return "";
end if;
end Has_Autoloop;
function Has_Muted return String is
begin
if Muted then
return " muted";
else
return "";
end if;
end Has_Muted;
function Has_Source return String is
begin
if Source /= "" then
return Escape_Quotes (" src='" & Escape_Inner_Quotes (Source) & "'");
else
return "";
end if;
end Has_Source;
begin
Audio.Create_From_HTML (Parent => Parent,
HTML => "<audio" &
Has_Controls &
Has_Preload &
Has_Autoplay &
Has_Autoloop &
Has_Muted &
Has_Source &
" />",
ID => ID);
end Create;
------------
-- Create --
------------
procedure Create (Video : in out Video_Type;
Parent : in out Gnoga.Gui.Base_Type'Class;
Source : in String := "";
Controls : in Boolean := True;
Preload : in Boolean := False;
Poster : in String := "";
Autoplay : in Boolean := False;
Autoloop : in Boolean := False;
Muted : in Boolean := False;
ID : in String := "")
is
function Has_Controls return String;
function Has_Preload return String;
function Has_Autoplay return String;
function Has_Autoloop return String;
function Has_Muted return String;
function Has_Poster return String;
function Has_Source return String;
function Has_Controls return String is
begin
if Controls then
return " controls";
else
return "";
end if;
end Has_Controls;
function Has_Preload return String is
begin
if Preload then
return " preload='auto'";
else
return "";
end if;
end Has_Preload;
function Has_Autoplay return String is
begin
if Autoplay then
return " autoplay";
else
return "";
end if;
end Has_Autoplay;
function Has_Autoloop return String is
begin
if Autoloop then
return " loop";
else
return "";
end if;
end Has_Autoloop;
function Has_Muted return String is
begin
if Muted then
return " muted";
else
return "";
end if;
end Has_Muted;
function Has_Poster return String is
begin
if Source /= "" then
return Escape_Quotes (" poster='" & Escape_Inner_Quotes (Poster) & "'");
else
return "";
end if;
end Has_Poster;
function Has_Source return String is
begin
if Source /= "" then
return Escape_Quotes (" src='" & Escape_Inner_Quotes (Source) & "'");
else
return "";
end if;
end Has_Source;
begin
Video.Create_From_HTML (Parent => Parent,
HTML => "<video" &
Has_Controls &
Has_Preload &
Has_Autoplay &
Has_Autoloop &
Has_Muted &
Has_Poster &
Has_Source &
" />",
ID => ID);
end Create;
end Ada_GUI.Gnoga.Gui.Element.Multimedia;