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/*
* sidebar.js
* ~~~~~~~~~~
*
* This script makes the Sphinx sidebar collapsible.
*
* .sphinxsidebar contains .sphinxsidebarwrapper. This script adds in
* .sphixsidebar, after .sphinxsidebarwrapper, the #sidebarbutton used to
* collapse and expand the sidebar.
*
* When the sidebar is collapsed the .sphinxsidebarwrapper is hidden and the
* width of the sidebar and the margin-left of the document are decreased.
* When the sidebar is expanded the opposite happens. This script saves a
* per-browser/per-session cookie used to remember the position of the sidebar
* among the pages. Once the browser is closed the cookie is deleted and the
* position reset to the default (expanded).
*
* :copyright: Copyright 2007-2011 by the Sphinx team, see AUTHORS.
* :license: BSD, see LICENSE for details.
*
*/
$(function() {
// global elements used by the functions.
// the 'sidebarbutton' element is defined as global after its
// creation, in the add_sidebar_button function
var bodywrapper = $('.bodywrapper');
var sidebar = $('.sphinxsidebar');
var sidebarwrapper = $('.sphinxsidebarwrapper');
// original margin-left of the bodywrapper and width of the sidebar
// with the sidebar expanded
var bw_margin_expanded = bodywrapper.css('margin-left');
var ssb_width_expanded = sidebar.width();
// margin-left of the bodywrapper and width of the sidebar
// with the sidebar collapsed
var bw_margin_collapsed = '.8em';
var ssb_width_collapsed = '.8em';
// colors used by the current theme
var dark_color = '#AAAAAA';
var light_color = '#CCCCCC';
function sidebar_is_collapsed() {
return sidebarwrapper.is(':not(:visible)');
}
function toggle_sidebar() {
if (sidebar_is_collapsed())
expand_sidebar();
else
collapse_sidebar();
}
function collapse_sidebar() {
sidebarwrapper.hide();
sidebar.css('width', ssb_width_collapsed);
bodywrapper.css('margin-left', bw_margin_collapsed);
sidebarbutton.css({
'margin-left': '0',
//'height': bodywrapper.height(),
'height': sidebar.height(),
'border-radius': '5px'
});
sidebarbutton.find('span').text('»');
sidebarbutton.attr('title', _('Expand sidebar'));
document.cookie = 'sidebar=collapsed';
}
function expand_sidebar() {
bodywrapper.css('margin-left', bw_margin_expanded);
sidebar.css('width', ssb_width_expanded);
sidebarwrapper.show();
sidebarbutton.css({
'margin-left': ssb_width_expanded-12,
//'height': bodywrapper.height(),
'height': sidebar.height(),
'border-radius': '0 5px 5px 0'
});
sidebarbutton.find('span').text('«');
sidebarbutton.attr('title', _('Collapse sidebar'));
//sidebarwrapper.css({'padding-top':
// Math.max(window.pageYOffset - sidebarwrapper.offset().top, 10)});
document.cookie = 'sidebar=expanded';
}
function add_sidebar_button() {
sidebarwrapper.css({
'float': 'left',
'margin-right': '0',
'width': ssb_width_expanded - 28
});
// create the button
sidebar.append(
'<div id="sidebarbutton"><span>«</span></div>'
);
var sidebarbutton = $('#sidebarbutton');
// find the height of the viewport to center the '<<' in the page
var viewport_height;
if (window.innerHeight)
viewport_height = window.innerHeight;
else
viewport_height = $(window).height();
var sidebar_offset = sidebar.offset().top;
var sidebar_height = sidebar.height();
//var sidebar_height = Math.max(bodywrapper.height(), sidebar.height());
sidebarbutton.find('span').css({
'display': 'block',
'margin-top': sidebar_height/2 - 10
//'margin-top': (viewport_height - sidebar.position().top - 20) / 2
//'position': 'fixed',
//'top': Math.min(viewport_height/2, sidebar_height/2 + sidebar_offset) - 10
});
sidebarbutton.click(toggle_sidebar);
sidebarbutton.attr('title', _('Collapse sidebar'));
sidebarbutton.css({
'border-radius': '0 5px 5px 0',
'color': '#444444',
'background-color': '#CCCCCC',
'font-size': '1.2em',
'cursor': 'pointer',
'height': sidebar_height,
'padding-top': '1px',
'padding-left': '1px',
'margin-left': ssb_width_expanded - 12
});
sidebarbutton.hover(
function () {
$(this).css('background-color', dark_color);
},
function () {
$(this).css('background-color', light_color);
}
);
}
function set_position_from_cookie() {
if (!document.cookie)
return;
var items = document.cookie.split(';');
for(var k=0; k<items.length; k++) {
var key_val = items[k].split('=');
var key = key_val[0];
if (key == 'sidebar') {
var value = key_val[1];
if ((value == 'collapsed') && (!sidebar_is_collapsed()))
collapse_sidebar();
else if ((value == 'expanded') && (sidebar_is_collapsed()))
expand_sidebar();
}
}
}
add_sidebar_button();
var sidebarbutton = $('#sidebarbutton');
set_position_from_cookie();
});
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