U
    \	a,*                  
   @   sR  d Z ddlmZ ddlZddlmZ ddlZddlZddlm	Z	 ddl
Z
ddlZddlZddlZddlZzddlZW n, ek
r Z zedeW 5 dZ[X Y nX ddlZddlZddlZddlZddlmZ ddlmZ d	d
lmZ d	dlmZ G dd dej Z!e! Z"G dd dej#Z$G dd dej%j&Z'dd Z(ej)G dd deZ*dS )z8
Displays Agg images in the browser, with interactivity
    )contextmanagerN)BytesIO)Pathz$The WebAgg backend requires Tornado.)_Backend)Gcf   )backend_webagg_core)TimerTornadoc                   @   s   e Zd Zdd ZdS )ServerThreadc                 C   s   t jj   d S N)tornadoioloopIOLoopinstancestartself r   F/tmp/pip-unpacked-wheel-wjyw_3jo/matplotlib/backends/backend_webagg.pyrun+   s    zServerThread.runN)__name__
__module____qualname__r   r   r   r   r   r
   *   s   r
   c                   @   s   e Zd ZdS )FigureCanvasWebAggN)r   r   r   r   r   r   r   r   2   s   r   c                       s   e Zd ZdZdZG dd dejjZG dd dejjZ	G dd dejjZ
G dd	 d	ejjZG d
d dejjZG dd dejjZd fdd	ZedddZedd Z  ZS )WebAggApplicationFc                   @   s   e Zd Zdd ZdS )zWebAggApplication.FavIconc                 C   s(   |  dd | tt d  d S )NContent-Typez	image/pngzimages/matplotlib.png)
set_headerwriter   mplget_data_path
read_bytesr   r   r   r   get;   s    zWebAggApplication.FavIcon.getNr   r   r   r!   r   r   r   r   FavIcon:   s   r#   c                       s*   e Zd Zdd fdd
Zdd Z  ZS )z"WebAggApplication.SingleFigurePage 
url_prefixc                   s   || _ t j||f| d S r   r&   super__init__r   Zapplicationrequestr&   kwargs	__class__r   r   r)   A   s    z+WebAggApplication.SingleFigurePage.__init__c                 C   sF   t |}t|}dj| j| jd}| jd| j||tjj	|j
d d S )Nws://{req.host}{prefix}/reqprefixzsingle_figure.html)r2   ws_urifig_id	toolitemscanvas)intr   get_fig_managerformatr+   r&   rendercoreNavigationToolbar2WebAggr5   r6   )r   fignummanagerr3   r   r   r   r!   E   s    
z&WebAggApplication.SingleFigurePage.getr   r   r   r)   r!   __classcell__r   r   r-   r   SingleFigurePage@   s   rA   c                       s*   e Zd Zdd fdd
Zdd Z  ZS )z WebAggApplication.AllFiguresPager$   r%   c                   s   || _ t j||f| d S r   r'   r*   r-   r   r   r)   T   s    z)WebAggApplication.AllFiguresPage.__init__c                 C   s:   dj | j| jd}| jd| j|ttj tj	j
d d S )Nr/   r0   zall_figures.html)r2   r3   Zfiguresr5   )r9   r+   r&   r:   sortedr   Zfigsitemsr;   r<   r5   )r   r3   r   r   r   r!   X   s    z$WebAggApplication.AllFiguresPage.getr?   r   r   r-   r   AllFiguresPageS   s   rD   c                   @   s   e Zd Zdd ZdS )zWebAggApplication.MplJsc                 C   s$   |  dd tj }| | d S )Nr   zapplication/javascript)r   r;   FigureManagerWebAggZget_javascriptr   )r   Z
js_contentr   r   r   r!   c   s    
zWebAggApplication.MplJs.getNr"   r   r   r   r   MplJsb   s   rF   c                   @   s   e Zd Zdd ZdS )zWebAggApplication.Downloadc                 C   sR   t |}t|}| dtj|d t }|jj	j
||d | |  d S )Nr   binary)r9   )r7   r   r8   r   	mimetypes	types_mapr!   r   r6   figureZsavefigr   getvalue)r   r=   fmtr>   Zbuffr   r   r   r!   k   s    
 zWebAggApplication.Download.getNr"   r   r   r   r   Downloadj   s   rM   c                   @   s8   e Zd ZdZdd Zdd Zdd Zdd	 Zd
d ZdS )zWebAggApplication.WebSocketTc                 C   s<   t || _t| j| _| j|  t| dr8| d d S )Nset_nodelayT)r7   r=   r   r8   r>   Zadd_web_sockethasattrrN   )r   r=   r   r   r   openw   s
    

z WebAggApplication.WebSocket.openc                 C   s   | j |  d S r   )r>   Zremove_web_socketr   r   r   r   on_close~   s    z$WebAggApplication.WebSocket.on_closec                 C   sD   t |}|d dkr"|d | _nt| j}|d k	r@|| d S )Ntypesupports_binaryvalue)jsonloadsrS   r   r8   r=   Zhandle_json)r   messager>   r   r   r   
on_message   s    
z&WebAggApplication.WebSocket.on_messagec                 C   s   |  t| d S r   )write_messagerU   dumps)r   contentr   r   r   	send_json   s    z%WebAggApplication.WebSocket.send_jsonc                 C   s<   | j r| j|dd n"d|ddd}| | d S )NT)rG   zdata:image/png;base64,{0}base64
r$   )rS   rY   r9   encodereplace)r   ZblobZdata_urir   r   r   send_binary   s    z'WebAggApplication.WebSocket.send_binaryN)	r   r   r   rS   rP   rQ   rX   r\   ra   r   r   r   r   	WebSockett   s   rb   r$   c              
      s   |r$|d dkr|d dks$t dt j|d tjjdtj if|d tjjdt	t
 dif|d	 | jf|d
 | jd|if|d | jd|if|d | jf|d | jf|d | jfgtj d d S )Nr   /z6url_prefix must start with a "/" and not end with one.z/_static/(.*)pathz/_images/(.*)Zimagesz/favicon.icoz	/([0-9]+)r&   z/?z
/js/mpl.jsz/([0-9]+)/wsz/([0-9]+)/download.([a-z0-9.]+))Ztemplate_path)AssertionErrorr(   r)   r   webZStaticFileHandlerr;   rE   get_static_file_pathr   r   r   r#   rA   rD   rF   rb   rM   )r   r&   r-   r   r   r)      s8    

 zWebAggApplication.__init__Nc                 C   s   | j r
d S | |d}|| _dd }|d kr8tjd | _n|| _tjd | _|| jtjd D ]T}z||| j W n2 tjk
r } z|j	t	j
kr W 5 d }~X Y q\X || _ qq\tdd| _ d S )	Nr%   c                 s   sN   t td|D ]}| | V  qt |d D ]}| td| d|  V  q*dS )z
            Generate a list of n random ports near the given port.

            The first 5 ports will be sequential, and the remaining n-5 will be
            randomly selected in the range [port-2*n, port+2*n].
                  N)rangeminrandomrandint)portnir   r   r   random_ports   s    z2WebAggApplication.initialize.<locals>.random_portszwebagg.addresszwebagg.portzwebagg.port_retrieszSThe webagg server could not be started because an available port could not be foundT)initializedr&   r   rcParamsaddressrp   listensocketerrorerrnoZ
EADDRINUSE
SystemExit)clsr&   rp   rv   Zapprs   er   r   r   
initialize   s.    
zWebAggApplication.initializec              	      sl    j r
d S tjj  fddtfdd}d _ td tj	  |  
  W 5 Q R X d S )Nc                      s$      td tj  d _d S )NzServer is stoppedF)stopprintsysstdoutflushstartedr   )r|   r   r   r   shutdown   s    
z)WebAggApplication.start.<locals>.shutdownc               
   3   s8   t  t j fdd} z
d V  W 5 t  t j|  X d S )Nc                    s
     S r   )Zadd_callback_from_signal)sigframer   r   r   r   <lambda>	      z?WebAggApplication.start.<locals>.catch_sigint.<locals>.<lambda>)signalSIGINT)Zold_handlerr   r   r   catch_sigint  s    
z-WebAggApplication.start.<locals>.catch_sigintTz"Press Ctrl+C to stop WebAgg server)r   r   r   r   r   r   r   r   r   r   r   )r|   r   r   )r|   r   r   r   r      s    	

zWebAggApplication.start)r$   )r$   NN)r   r   r   rt   r   r   rg   ZRequestHandlerr#   rA   rD   rF   rM   Z	websocketZWebSocketHandlerrb   r)   classmethodr~   r   r@   r   r   r-   r   r   6   s   
'(-r   c                 C   sj   dd l }t  t s t  | j}ttj	
 d }|j|}|jtj|tjj| jtjddS )Nr   zipython_inline_figure.html)r2   r4   r5   r6   rp   zutf-8)Ztornado.templater   r~   webagg_server_threadis_aliver   numberr   r;   rE   rh   	read_texttemplateTemplategenerater&   r<   r5   r6   rp   decode)rJ   r   r=   Ztpltr   r   r   ipython_inline_display  s$    
r   c                   @   s"   e Zd ZeZejZedd Z	dS )_BackendWebAggc                  C   sd   t   djt jt jt jd} tjd rJdd l}|	| sXt
d|  nt
d|  t   d S )Nzhttp://{address}:{port}{prefix})rv   rp   r2   zwebagg.open_in_browserr   zTo view figure, visit {0})r   r~   r9   rv   rp   r&   r   ru   
webbrowserrP   r   r   )urlr   r   r   r   show0  s    

z_BackendWebAgg.showN)
r   r   r   r   ZFigureCanvasr;   rE   ZFigureManagerstaticmethodr   r   r   r   r   r   +  s   r   )+__doc__
contextlibr   rz   ior   rU   rH   pathlibr   rn   r   r   rx   	threadingr   ImportErrorerrRuntimeErrorZtornado.webZtornado.ioloopZtornado.websocketZ
matplotlibr   Zmatplotlib.backend_basesr   Zmatplotlib._pylab_helpersr   r$   r   r;   r	   Threadr
   r   ZFigureCanvasWebAggCorer   rg   Applicationr   r   exportr   r   r   r   r   <module>   s>    c