Sindbad~EG File Manager
// 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/>.
/*
* @package atto_link
* @copyright 2013 Damyon Wiese <damyon@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/**
* @module moodle-atto_link-button
*/
/**
* Atto text editor link plugin.
*
* @namespace M.atto_link
* @class button
* @extends M.editor_atto.EditorPlugin
*/
var COMPONENTNAME = 'atto_link',
CSS = {
NEWWINDOW: 'atto_link_openinnewwindow',
URLINPUT: 'atto_link_urlentry'
},
SELECTORS = {
URLINPUT: '.atto_link_urlentry'
},
TEMPLATE = '' +
'<form class="atto_form">' +
'{{#if showFilepicker}}' +
'<label for="{{elementid}}_atto_link_urlentry">{{get_string "enterurl" component}}</label>' +
'<div class="input-group input-append w-100 mb-1">' +
'<input class="form-control url {{CSS.URLINPUT}}" type="url" ' +
'id="{{elementid}}_atto_link_urlentry"/>' +
'<span class="input-group-append">' +
'<button class="btn btn-secondary openlinkbrowser" type="button">' +
'{{get_string "browserepositories" component}}</button>' +
'</span>' +
'</div>' +
'{{else}}' +
'<div class="mb-1">' +
'<label for="{{elementid}}_atto_link_urlentry">{{get_string "enterurl" component}}</label>' +
'<input class="form-control fullwidth url {{CSS.URLINPUT}}" type="url" ' +
'id="{{elementid}}_atto_link_urlentry" size="32"/>' +
'</div>' +
'{{/if}}' +
'<div class="form-check">' +
'<input type="checkbox" class="form-check-input newwindow" id="{{elementid}}_{{CSS.NEWWINDOW}}"/>' +
'<label class="form-check-label" for="{{elementid}}_{{CSS.NEWWINDOW}}">' +
'{{get_string "openinnewwindow" component}}' +
'</label>' +
'</div>' +
'<div class="mdl-align">' +
'<br/>' +
'<button type="submit" class="btn btn-secondary submit">{{get_string "createlink" component}}</button>' +
'</div>' +
'</form>';
Y.namespace('M.atto_link').Button = Y.Base.create('button', Y.M.editor_atto.EditorPlugin, [], {
/**
* A reference to the current selection at the time that the dialogue
* was opened.
*
* @property _currentSelection
* @type Range
* @private
*/
_currentSelection: null,
/**
* A reference to the dialogue content.
*
* @property _content
* @type Node
* @private
*/
_content: null,
initializer: function() {
// Add the link button first.
this.addButton({
icon: 'e/insert_edit_link',
keys: '75',
callback: this._displayDialogue,
tags: 'a',
tagMatchRequiresAll: false
});
// And then the unlink button.
this.addButton({
buttonName: 'unlink',
callback: this._unlink,
icon: 'e/remove_link',
title: 'unlink',
// Watch the following tags and add/remove highlighting as appropriate:
tags: 'a',
tagMatchRequiresAll: false
});
},
/**
* Display the link editor.
*
* @method _displayDialogue
* @private
*/
_displayDialogue: function() {
// Store the current selection.
this._currentSelection = this.get('host').getSelection();
if (this._currentSelection === false) {
return;
}
var dialogue = this.getDialogue({
headerContent: M.util.get_string('createlink', COMPONENTNAME),
width: 'auto',
focusAfterHide: true,
focusOnShowSelector: SELECTORS.URLINPUT
});
// Set the dialogue content, and then show the dialogue.
dialogue.set('bodyContent', this._getDialogueContent());
// Resolve anchors in the selected text.
this._resolveAnchors();
dialogue.show();
},
/**
* If there is selected text and it is part of an anchor link,
* extract the url (and target) from the link (and set them in the form).
*
* @method _resolveAnchors
* @private
*/
_resolveAnchors: function() {
// Find the first anchor tag in the selection.
var selectednode = this.get('host').getSelectionParentNode(),
anchornodes,
anchornode,
url,
target;
// Note this is a document fragment and YUI doesn't like them.
if (!selectednode) {
return;
}
anchornodes = this._findSelectedAnchors(Y.one(selectednode));
if (anchornodes.length > 0) {
anchornode = anchornodes[0];
this._currentSelection = this.get('host').getSelectionFromNode(anchornode);
url = anchornode.getAttribute('href');
target = anchornode.getAttribute('target');
if (url !== '') {
this._content.one('.url').setAttribute('value', url);
}
if (target === '_blank') {
this._content.one('.newwindow').setAttribute('checked', 'checked');
} else {
this._content.one('.newwindow').removeAttribute('checked');
}
}
},
/**
* Update the dialogue after a link was selected in the File Picker.
*
* @method _filepickerCallback
* @param {object} params The parameters provided by the filepicker
* containing information about the link.
* @private
*/
_filepickerCallback: function(params) {
this.getDialogue()
.set('focusAfterHide', null)
.hide();
if (params.url !== '') {
// Add the link.
this._setLinkOnSelection(params.url);
// And mark the text area as updated.
this.markUpdated();
}
},
/**
* The link was inserted, so make changes to the editor source.
*
* @method _setLink
* @param {EventFacade} e
* @private
*/
_setLink: function(e) {
var input,
value;
e.preventDefault();
this.getDialogue({
focusAfterHide: null
}).hide();
input = this._content.one('.url');
value = input.get('value');
if (value !== '') {
// We add a prefix if it is not already prefixed.
value = value.trim();
var expr = new RegExp(/^[a-zA-Z]*\.*\/|^#|^[a-zA-Z]*:/);
if (!expr.test(value)) {
value = 'http://' + value;
}
// Add the link.
this._setLinkOnSelection(value);
this.markUpdated();
}
},
/**
* Final step setting the anchor on the selection.
*
* @private
* @method _setLinkOnSelection
* @param {String} url URL the link will point to.
* @return {Node} The added Node.
*/
_setLinkOnSelection: function(url) {
var host = this.get('host'),
link,
selectednode,
target,
anchornodes;
this.editor.focus();
host.setSelection(this._currentSelection);
if (this._currentSelection[0].collapsed) {
// Firefox cannot add links when the selection is empty so we will add it manually.
link = Y.Node.create('<a>' + url + '</a>');
link.setAttribute('href', url);
// Add the node and select it to replicate the behaviour of execCommand.
selectednode = host.insertContentAtFocusPoint(link.get('outerHTML'));
host.setSelection(host.getSelectionFromNode(selectednode));
} else {
document.execCommand('unlink', false, null);
document.execCommand('createLink', false, url);
// Now set the target.
selectednode = host.getSelectionParentNode();
}
// Note this is a document fragment and YUI doesn't like them.
if (!selectednode) {
return;
}
anchornodes = this._findSelectedAnchors(Y.one(selectednode));
// Add new window attributes if requested.
Y.Array.each(anchornodes, function(anchornode) {
target = this._content.one('.newwindow');
if (target.get('checked')) {
anchornode.setAttribute('target', '_blank');
} else {
anchornode.removeAttribute('target');
}
}, this);
return selectednode;
},
/**
* Look up and down for the nearest anchor tags that are least partly contained in the selection.
*
* @method _findSelectedAnchors
* @param {Node} node The node to search under for the selected anchor.
* @return {Node|Boolean} The Node, or false if not found.
* @private
*/
_findSelectedAnchors: function(node) {
var tagname = node.get('tagName'),
hit, hits;
// Direct hit.
if (tagname && tagname.toLowerCase() === 'a') {
return [node];
}
// Search down but check that each node is part of the selection.
hits = [];
node.all('a').each(function(n) {
if (!hit && this.get('host').selectionContainsNode(n)) {
hits.push(n);
}
}, this);
if (hits.length > 0) {
return hits;
}
// Search up.
hit = node.ancestor('a');
if (hit) {
return [hit];
}
return [];
},
/**
* Generates the content of the dialogue.
*
* @method _getDialogueContent
* @return {Node} Node containing the dialogue content
* @private
*/
_getDialogueContent: function() {
var canShowFilepicker = this.get('host').canShowFilepicker('link'),
template = Y.Handlebars.compile(TEMPLATE);
this._content = Y.Node.create(template({
showFilepicker: canShowFilepicker,
component: COMPONENTNAME,
CSS: CSS
}));
this._content.one('.submit').on('click', this._setLink, this);
if (canShowFilepicker) {
this._content.one('.openlinkbrowser').on('click', function(e) {
e.preventDefault();
this.get('host').showFilepicker('link', this._filepickerCallback, this);
}, this);
}
return this._content;
},
/**
* Unlinks the current selection.
* If the selection is empty (e.g. the cursor is placed within a link),
* then the whole link is unlinked.
*
* @method _unlink
* @private
*/
_unlink: function() {
var host = this.get('host'),
range = host.getSelection();
if (range && range.length) {
if (range[0].startOffset === range[0].endOffset) {
// The cursor was placed in the editor but there was no selection - select the whole parent.
var nodes = host.getSelectedNodes();
if (nodes) {
// We need to unlink each anchor individually - we cannot select a range because it may only consist of a
// fragment of an anchor. Selecting the parent would be dangerous because it may contain other links which
// would then be unlinked too.
nodes.each(function(node) {
// We need to select the whole anchor node for this to work in some browsers.
// We only need to search up because getSeletedNodes returns all Nodes in the selection.
var anchor = node.ancestor('a', true);
if (anchor) {
// Set the selection to the whole of the first anchro.
host.setSelection(host.getSelectionFromNode(anchor));
// Call the browser unlink.
document.execCommand('unlink', false, null);
}
}, this);
// And mark the text area as updated.
this.markUpdated();
}
} else {
// Call the browser unlink.
document.execCommand('unlink', false, null);
// And mark the text area as updated.
this.markUpdated();
}
}
}
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Sindbad File Manager Version 1.0, Coded By Sindbad EG ~ The Terrorists