mirror of
https://github.com/moodle/moodle.git
synced 2025-01-20 15:08:32 +01:00
267 lines
10 KiB
JavaScript
267 lines
10 KiB
JavaScript
// This file is part of Moodle - http://moodle.org/
|
|
//
|
|
// Moodle is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// Moodle 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. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
/**
|
|
* Javascript helper function for IMS Content Package module.
|
|
*
|
|
* @package mod-imscp
|
|
* @copyright 2009 Petr Skoda (http://skodak.org)
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
*/
|
|
|
|
M.mod_imscp = {};
|
|
|
|
M.mod_imscp.init = function(Y) {
|
|
|
|
var imscp_layout_widget;
|
|
var imscp_current_node;
|
|
var imscp_buttons = [];
|
|
var imscp_bloody_labelclick = false;
|
|
var imscp_panel;
|
|
|
|
Y.use('yui2-resize', 'yui2-dragdrop', 'yui2-container', 'yui2-button', 'yui2-layout', 'yui2-treeview', 'yui2-json', 'yui2-event', function(Y) {
|
|
|
|
var imscp_activate_item = function(node) {
|
|
if (!node) {
|
|
return;
|
|
}
|
|
imscp_current_node = node;
|
|
imscp_current_node.highlight();
|
|
|
|
var content = new YAHOO.util.Element('imscp_content');
|
|
try {
|
|
// first try IE way - it can not set name attribute later
|
|
// and also it has some restrictions on DOM access from object tag
|
|
var obj = document.createElement('<iframe id="imscp_object" src="'+node.href+'">');
|
|
} catch (e) {
|
|
var obj = document.createElement('object');
|
|
obj.setAttribute('id', 'imscp_object');
|
|
obj.setAttribute('type', 'text/html');
|
|
obj.setAttribute('data', node.href);
|
|
}
|
|
var old = YAHOO.util.Dom.get('imscp_object');
|
|
if (old) {
|
|
content.replaceChild(obj, old);
|
|
} else {
|
|
content.appendChild(obj);
|
|
}
|
|
imscp_resize_frame();
|
|
|
|
imscp_current_node.focus();
|
|
imscp_fixnav();
|
|
};
|
|
|
|
/**
|
|
* Enables/disables navigation buttons as needed.
|
|
* @return void
|
|
*/
|
|
var imscp_fixnav = function() {
|
|
imscp_buttons[0].set('disabled', (imscp_skipprev(imscp_current_node) == null));
|
|
imscp_buttons[1].set('disabled', (imscp_prev(imscp_current_node) == null));
|
|
imscp_buttons[2].set('disabled', (imscp_up(imscp_current_node) == null));
|
|
imscp_buttons[3].set('disabled', (imscp_next(imscp_current_node) == null));
|
|
imscp_buttons[4].set('disabled', (imscp_skipnext(imscp_current_node) == null));
|
|
};
|
|
|
|
|
|
var imscp_resize_layout = function(alsowidth) {
|
|
if (alsowidth) {
|
|
var layout = YAHOO.util.Dom.get('imscp_layout');
|
|
layout.style.width = '500px';
|
|
var newwidth = imscp_get_htmlelement_size('content', 'width');
|
|
if (newwidth > 500) {
|
|
layout.style.width = newwidth+'px';
|
|
}
|
|
}
|
|
var pageheight = imscp_get_htmlelement_size('page', 'height');
|
|
var layoutheight = imscp_get_htmlelement_size(imscp_layout_widget, 'height');
|
|
var newheight = layoutheight + parseInt(YAHOO.util.Dom.getViewportHeight()) - pageheight - 20;
|
|
if (newheight > 400) {
|
|
imscp_layout_widget.setStyle('height', newheight+'px');
|
|
}
|
|
imscp_layout_widget.render();
|
|
imscp_resize_frame();
|
|
|
|
imscp_panel.align('bl', 'bl');
|
|
};
|
|
|
|
var imscp_get_htmlelement_size = function(el, prop) {
|
|
var val = YAHOO.util.Dom.getStyle(el, prop);
|
|
if (val == 'auto') {
|
|
if (el.get) {
|
|
el = el.get('element'); // get real HTMLElement from YUI element
|
|
}
|
|
val = YAHOO.util.Dom.getComputedStyle(YAHOO.util.Dom.get(el), prop);
|
|
}
|
|
return parseInt(val);
|
|
};
|
|
|
|
var imscp_resize_frame = function() {
|
|
var obj = YAHOO.util.Dom.get('imscp_object');
|
|
if (obj) {
|
|
var content = imscp_layout_widget.getUnitByPosition('center').get('wrap');
|
|
obj.style.width = (content.offsetWidth - 6)+'px';
|
|
obj.style.height = (content.offsetHeight - 10)+'px';
|
|
}
|
|
};
|
|
|
|
|
|
var imscp_up = function(node) {
|
|
if (node.depth > 0) {
|
|
return node.parent;
|
|
}
|
|
return null;
|
|
};
|
|
|
|
var imscp_lastchild = function(node) {
|
|
if (node.children.length) {
|
|
return imscp_lastchild(node.children[node.children.length-1]);
|
|
} else {
|
|
return node;
|
|
}
|
|
};
|
|
|
|
var imscp_prev = function(node) {
|
|
if (node.previousSibling && node.previousSibling.children.length) {
|
|
return imscp_lastchild(node.previousSibling);
|
|
}
|
|
return imscp_skipprev(node);
|
|
};
|
|
|
|
var imscp_skipprev = function(node) {
|
|
if (node.previousSibling) {
|
|
return node.previousSibling;
|
|
} else if (node.depth > 0) {
|
|
return node.parent;
|
|
}
|
|
return null;
|
|
};
|
|
|
|
var imscp_next = function(node) {
|
|
if (node.children.length) {
|
|
return node.children[0];
|
|
}
|
|
return imscp_skipnext(node);
|
|
};
|
|
|
|
var imscp_skipnext = function(node) {
|
|
if (node.nextSibling) {
|
|
return node.nextSibling;
|
|
} else if (node.depth > 0) {
|
|
return imscp_skipnext(node.parent);
|
|
}
|
|
return null;
|
|
};
|
|
|
|
|
|
// layout
|
|
YAHOO.widget.LayoutUnit.prototype.STR_COLLAPSE = M.str.moodle.hide;
|
|
YAHOO.widget.LayoutUnit.prototype.STR_EXPAND = M.str.moodle.show;
|
|
|
|
imscp_layout_widget = new YAHOO.widget.Layout('imscp_layout', {
|
|
minWidth: 600,
|
|
minHeight: 400,
|
|
units: [
|
|
{ position: 'left', body: 'imscp_toc', header: M.str.imscp.toc, width: 250, resize: true, gutter: '2px 5px 5px 2px', collapse: true, minWidth:150},
|
|
{ position: 'center', body: '<div id="imscp_content"></div>', gutter: '2px 5px 5px 2px', scroll: true}
|
|
]
|
|
});
|
|
imscp_layout_widget.render();
|
|
var left = imscp_layout_widget.getUnitByPosition('left');
|
|
left.on('collapse', function() {
|
|
imscp_resize_frame();
|
|
});
|
|
left.on('expand', function() {
|
|
imscp_resize_frame();
|
|
});
|
|
|
|
// ugly resizing hack that works around problems with resizing of iframes and objects
|
|
left._resize.on('startResize', function() {
|
|
var obj = YAHOO.util.Dom.get('imscp_object');
|
|
obj.style.display = 'none';
|
|
});
|
|
left._resize.on('endResize', function() {
|
|
var obj = YAHOO.util.Dom.get('imscp_object');
|
|
obj.style.display = 'block';
|
|
imscp_resize_frame();
|
|
});
|
|
|
|
// TOC tree
|
|
var tree = new YAHOO.widget.TreeView('imscp_tree');
|
|
tree.singleNodeHighlight = true;
|
|
tree.subscribe('labelClick', function(node) {
|
|
imscp_activate_item(node);
|
|
if (node.children.length) {
|
|
imscp_bloody_labelclick = true;
|
|
}
|
|
});
|
|
tree.subscribe('collapse', function(node) {
|
|
if (imscp_bloody_labelclick) {
|
|
imscp_bloody_labelclick = false;
|
|
return false;
|
|
}
|
|
});
|
|
tree.subscribe('expand', function(node) {
|
|
if (imscp_bloody_labelclick) {
|
|
imscp_bloody_labelclick = false;
|
|
return false;
|
|
}
|
|
});
|
|
tree.expandAll();
|
|
tree.render();
|
|
|
|
// navigation
|
|
imscp_panel = new YAHOO.widget.Panel('imscp_navpanel', { visible:true, draggable:true, close:false,
|
|
context: ['page', 'bl', 'bl', ["windowScroll", "textResize", "windowResize"]], constraintoviewport:true} );
|
|
imscp_panel.setHeader(M.str.imscp.navigation);
|
|
|
|
//TODO: make some better&accessible buttons
|
|
imscp_panel.setBody('<span id="imscp_nav"><button id="nav_skipprev"><<</button><button id="nav_prev"><</button><button id="nav_up">^</button><button id="nav_next">></button><button id="nav_skipnext">>></button></span>');
|
|
imscp_panel.render();
|
|
imscp_buttons[0] = new YAHOO.widget.Button('nav_skipprev');
|
|
imscp_buttons[1] = new YAHOO.widget.Button('nav_prev');
|
|
imscp_buttons[2] = new YAHOO.widget.Button('nav_up');
|
|
imscp_buttons[3] = new YAHOO.widget.Button('nav_next');
|
|
imscp_buttons[4] = new YAHOO.widget.Button('nav_skipnext');
|
|
imscp_buttons[0].on('click', function(ev) {
|
|
imscp_activate_item(imscp_skipprev(imscp_current_node));
|
|
});
|
|
imscp_buttons[1].on('click', function(ev) {
|
|
imscp_activate_item(imscp_prev(imscp_current_node));
|
|
});
|
|
imscp_buttons[2].on('click', function(ev) {
|
|
imscp_activate_item(imscp_up(imscp_current_node));
|
|
});
|
|
imscp_buttons[3].on('click', function(ev) {
|
|
imscp_activate_item(imscp_next(imscp_current_node));
|
|
});
|
|
imscp_buttons[4].on('click', function(ev) {
|
|
imscp_activate_item(imscp_skipnext(imscp_current_node));
|
|
});
|
|
imscp_panel.render();
|
|
|
|
// finally activate the first item
|
|
imscp_activate_item(tree.getRoot().children[0]);
|
|
|
|
// resizing
|
|
imscp_resize_layout(false);
|
|
|
|
// fix layout if window resized
|
|
window.onresize = function() {
|
|
imscp_resize_layout(true);
|
|
};
|
|
});
|
|
};
|