zotero/resource/tinymce/plugins/link/plugin.js

611 lines
14 KiB
JavaScript

/**
* plugin.js
*
* Released under LGPL License.
* Copyright (c) 1999-2015 Ephox Corp. All rights reserved
*
* License: http://www.tinymce.com/license
* Contributing: http://www.tinymce.com/contributing
*/
/*global tinymce:true */
tinymce.PluginManager.add('link', function(editor) {
var attachState = {};
function isLink(elm) {
return elm && elm.nodeName === 'A' && elm.href;
}
function hasLinks(elements) {
return tinymce.util.Tools.grep(elements, isLink).length > 0;
}
function getLink(elm) {
return editor.dom.getParent(elm, 'a[href]');
}
function getSelectedLink() {
return getLink(editor.selection.getStart());
}
function getHref(elm) {
// Returns the real href value not the resolved a.href value
var href = elm.getAttribute('data-mce-href');
return href ? href : elm.getAttribute('href');
}
function isContextMenuVisible() {
var contextmenu = editor.plugins.contextmenu;
return contextmenu ? contextmenu.isContextMenuVisible() : false;
}
var hasOnlyAltModifier = function (e) {
return e.altKey === true && e.shiftKey === false && e.ctrlKey === false && e.metaKey === false;
};
function leftClickedOnAHref(elm) {
var sel, rng, node;
if (editor.settings.link_context_toolbar && !isContextMenuVisible() && isLink(elm)) {
sel = editor.selection;
rng = sel.getRng();
node = rng.startContainer;
// ignore cursor positions at the beginning/end (to make context toolbar less noisy)
if (node.nodeType == 3 && sel.isCollapsed() && rng.startOffset > 0 && rng.startOffset < node.data.length) {
return true;
}
}
return false;
}
function openDetachedWindow(url) {
// Added by Zotero
editor.execCommand('ZoteroLinkClick', false, url);
// Chrome and Webkit has implemented noopener and works correctly with/without popup blocker
// Firefox has it implemented noopener but when the popup blocker is activated it doesn't work
// Edge has only implemented noreferrer and it seems to remove opener as well
// Older IE versions pre IE 11 falls back to a window.open approach
/*if (!tinymce.Env.ie || tinymce.Env.ie > 10) {
var link = document.createElement('a');
link.target = '_blank';
link.href = url;
link.rel = 'noreferrer noopener';
var evt = document.createEvent('MouseEvents');
evt.initMouseEvent('click', true, true, window, true, 0, 0, 0, 0, false, false, false, false, 0, null);
link.dispatchEvent(evt);
} else {
var win = window.open('', '_blank');
if (win) {
win.opener = null;
var doc = win.document;
doc.open();
doc.write('<meta http-equiv="refresh" content="0; url=' + tinymce.DOM.encode(url) + '">');
doc.close();
}
}*/
}
function gotoLink(a) {
if (a) {
var href = getHref(a);
if (/^#/.test(href)) {
var targetEl = editor.$(href);
if (targetEl.length) {
editor.selection.scrollIntoView(targetEl[0], true);
}
} else {
openDetachedWindow(a.href);
}
}
}
function gotoSelectedLink() {
gotoLink(getSelectedLink());
}
function toggleViewLinkState() {
var self = this;
var toggleVisibility = function (e) {
if (hasLinks(e.parents)) {
self.show();
} else {
self.hide();
}
};
if (!hasLinks(editor.dom.getParents(editor.selection.getStart()))) {
self.hide();
}
editor.on('nodechange', toggleVisibility);
self.on('remove', function () {
editor.off('nodechange', toggleVisibility);
});
}
function createLinkList(callback) {
return function() {
var linkList = editor.settings.link_list;
if (typeof linkList == "string") {
tinymce.util.XHR.send({
url: linkList,
success: function(text) {
callback(tinymce.util.JSON.parse(text));
}
});
} else if (typeof linkList == "function") {
linkList(callback);
} else {
callback(linkList);
}
};
}
function buildListItems(inputList, itemCallback, startItems) {
function appendItems(values, output) {
output = output || [];
tinymce.each(values, function(item) {
var menuItem = {text: item.text || item.title};
if (item.menu) {
menuItem.menu = appendItems(item.menu);
} else {
menuItem.value = item.value;
if (itemCallback) {
itemCallback(menuItem);
}
}
output.push(menuItem);
});
return output;
}
return appendItems(inputList, startItems || []);
}
function showDialog(linkList) {
var data = {}, selection = editor.selection, dom = editor.dom, selectedElm, anchorElm, initialText;
var win, onlyText, textListCtrl, linkListCtrl, relListCtrl, targetListCtrl, classListCtrl, linkTitleCtrl, value;
function linkListChangeHandler(e) {
var textCtrl = win.find('#text');
if (!textCtrl.value() || (e.lastControl && textCtrl.value() == e.lastControl.text())) {
textCtrl.value(e.control.text());
}
win.find('#href').value(e.control.value());
}
function buildAnchorListControl(url) {
var anchorList = [];
tinymce.each(editor.dom.select('a:not([href])'), function(anchor) {
var id = anchor.name || anchor.id;
if (id) {
anchorList.push({
text: id,
value: '#' + id,
selected: url.indexOf('#' + id) != -1
});
}
});
if (anchorList.length) {
anchorList.unshift({text: 'None', value: ''});
return {
name: 'anchor',
type: 'listbox',
label: 'Anchors',
values: anchorList,
onselect: linkListChangeHandler
};
}
}
function updateText() {
if (!initialText && data.text.length === 0 && onlyText) {
this.parent().parent().find('#text')[0].value(this.value());
}
}
function urlChange(e) {
var meta = e.meta || {};
if (linkListCtrl) {
linkListCtrl.value(editor.convertURL(this.value(), 'href'));
}
tinymce.each(e.meta, function(value, key) {
var inp = win.find('#' + key);
if (key === 'text') {
if (initialText.length === 0) {
inp.value(value);
data.text = value;
}
} else {
inp.value(value);
}
});
if (meta.attach) {
attachState = {
href: this.value(),
attach: meta.attach
};
}
if (!meta.text) {
updateText.call(this);
}
}
function isOnlyTextSelected(anchorElm) {
var html = selection.getContent();
// Partial html and not a fully selected anchor element
if (/</.test(html) && (!/^<a [^>]+>[^<]+<\/a>$/.test(html) || html.indexOf('href=') == -1)) {
return false;
}
if (anchorElm) {
var nodes = anchorElm.childNodes, i;
if (nodes.length === 0) {
return false;
}
for (i = nodes.length - 1; i >= 0; i--) {
if (nodes[i].nodeType != 3) {
return false;
}
}
}
return true;
}
function onBeforeCall(e) {
e.meta = win.toJSON();
}
selectedElm = selection.getNode();
anchorElm = dom.getParent(selectedElm, 'a[href]');
onlyText = isOnlyTextSelected();
data.text = initialText = anchorElm ? (anchorElm.innerText || anchorElm.textContent) : selection.getContent({format: 'text'});
data.href = anchorElm ? dom.getAttrib(anchorElm, 'href') : '';
if (anchorElm) {
data.target = dom.getAttrib(anchorElm, 'target');
} else if (editor.settings.default_link_target) {
data.target = editor.settings.default_link_target;
}
if ((value = dom.getAttrib(anchorElm, 'rel'))) {
data.rel = value;
}
if ((value = dom.getAttrib(anchorElm, 'class'))) {
data['class'] = value;
}
if ((value = dom.getAttrib(anchorElm, 'title'))) {
data.title = value;
}
if (onlyText) {
textListCtrl = {
name: 'text',
type: 'textbox',
size: 40,
label: 'Text to display',
onchange: function() {
data.text = this.value();
}
};
}
if (linkList) {
linkListCtrl = {
type: 'listbox',
label: 'Link list',
values: buildListItems(
linkList,
function(item) {
item.value = editor.convertURL(item.value || item.url, 'href');
},
[{text: 'None', value: ''}]
),
onselect: linkListChangeHandler,
value: editor.convertURL(data.href, 'href'),
onPostRender: function() {
/*eslint consistent-this:0*/
linkListCtrl = this;
}
};
}
if (editor.settings.target_list !== false) {
if (!editor.settings.target_list) {
editor.settings.target_list = [
{text: 'None', value: ''},
{text: 'New window', value: '_blank'}
];
}
targetListCtrl = {
name: 'target',
type: 'listbox',
label: 'Target',
values: buildListItems(editor.settings.target_list)
};
}
if (editor.settings.rel_list) {
relListCtrl = {
name: 'rel',
type: 'listbox',
label: 'Rel',
values: buildListItems(editor.settings.rel_list)
};
}
if (editor.settings.link_class_list) {
classListCtrl = {
name: 'class',
type: 'listbox',
label: 'Class',
values: buildListItems(
editor.settings.link_class_list,
function(item) {
if (item.value) {
item.textStyle = function() {
return editor.formatter.getCssText({inline: 'a', classes: [item.value]});
};
}
}
)
};
}
if (editor.settings.link_title !== false) {
linkTitleCtrl = {
name: 'title',
type: 'textbox',
label: 'Title',
value: data.title
};
}
win = editor.windowManager.open({
title: 'Insert link',
data: data,
body: [
{
name: 'href',
type: 'filepicker',
filetype: 'file',
size: 40,
autofocus: true,
label: 'Url',
onchange: urlChange,
onkeyup: updateText,
onbeforecall: onBeforeCall
},
textListCtrl,
linkTitleCtrl,
buildAnchorListControl(data.href),
linkListCtrl,
relListCtrl,
targetListCtrl,
classListCtrl
],
onSubmit: function(e) {
/*eslint dot-notation: 0*/
var href;
data = tinymce.extend(data, e.data);
href = data.href;
// Delay confirm since onSubmit will move focus
function delayedConfirm(message, callback) {
var rng = editor.selection.getRng();
tinymce.util.Delay.setEditorTimeout(editor, function() {
editor.windowManager.confirm(message, function(state) {
editor.selection.setRng(rng);
callback(state);
});
});
}
function toggleTargetRules(rel, isUnsafe) {
var rules = 'noopener noreferrer';
function addTargetRules(rel) {
rel = removeTargetRules(rel);
return rel ? [rel, rules].join(' ') : rules;
}
function removeTargetRules(rel) {
var regExp = new RegExp('(' + rules.replace(' ', '|') + ')', 'g');
if (rel) {
rel = tinymce.trim(rel.replace(regExp, ''));
}
return rel ? rel : null;
}
return isUnsafe ? addTargetRules(rel) : removeTargetRules(rel);
}
function createLink() {
var linkAttrs = {
href: href,
target: data.target ? data.target : null,
rel: data.rel ? data.rel : null,
"class": data["class"] ? data["class"] : null,
title: data.title ? data.title : null
};
if (!editor.settings.allow_unsafe_link_target) {
linkAttrs.rel = toggleTargetRules(linkAttrs.rel, linkAttrs.target == '_blank');
}
if (href === attachState.href) {
attachState.attach();
attachState = {};
}
if (anchorElm) {
editor.focus();
if (onlyText && data.text != initialText) {
if ("innerText" in anchorElm) {
anchorElm.innerText = data.text;
} else {
anchorElm.textContent = data.text;
}
}
dom.setAttribs(anchorElm, linkAttrs);
selection.select(anchorElm);
editor.undoManager.add();
} else {
if (onlyText) {
editor.insertContent(dom.createHTML('a', linkAttrs, dom.encode(data.text)));
} else {
editor.execCommand('mceInsertLink', false, linkAttrs);
}
}
}
function insertLink() {
editor.undoManager.transact(createLink);
}
if (!href) {
editor.execCommand('unlink');
return;
}
// Is email and not //user@domain.com
if (href.indexOf('@') > 0 && href.indexOf('//') == -1 && href.indexOf('mailto:') == -1) {
delayedConfirm(
'The URL you entered seems to be an email address. Do you want to add the required mailto: prefix?',
function(state) {
if (state) {
href = 'mailto:' + href;
}
insertLink();
}
);
return;
}
// Is not protocol prefixed
if ((editor.settings.link_assume_external_targets && !/^\w+:/i.test(href)) ||
(!editor.settings.link_assume_external_targets && /^\s*www[\.|\d\.]/i.test(href))) {
delayedConfirm(
'The URL you entered seems to be an external link. Do you want to add the required http:// prefix?',
function(state) {
if (state) {
href = 'http://' + href;
}
insertLink();
}
);
return;
}
insertLink();
}
});
}
editor.addButton('link', {
icon: 'link',
tooltip: 'Insert/edit link',
shortcut: 'Meta+K',
onclick: createLinkList(showDialog),
stateSelector: 'a[href]'
});
editor.addButton('unlink', {
icon: 'unlink',
tooltip: 'Remove link',
cmd: 'unlink',
stateSelector: 'a[href]'
});
if (editor.addContextToolbar) {
editor.addButton('openlink', {
icon: 'newtab',
tooltip: 'Open link',
onclick: gotoSelectedLink
});
editor.addContextToolbar(
leftClickedOnAHref,
'openlink | link unlink'
);
}
editor.addShortcut('Meta+K', '', createLinkList(showDialog));
editor.addCommand('mceLink', createLinkList(showDialog));
editor.on('click', function (e) {
var link = getLink(e.target);
if (link && tinymce.util.VK.metaKeyPressed(e)) {
e.preventDefault();
gotoLink(link);
}
});
editor.on('keydown', function (e) {
var link = getSelectedLink();
if (link && e.keyCode === 13 && hasOnlyAltModifier(e)) {
e.preventDefault();
gotoLink(link);
}
});
this.showDialog = showDialog;
editor.addMenuItem('openlink', {
text: 'Open link',
icon: 'newtab',
onclick: gotoSelectedLink,
onPostRender: toggleViewLinkState,
prependToContext: true
});
editor.addMenuItem('link', {
icon: 'link',
text: 'Link',
shortcut: 'Meta+K',
onclick: createLinkList(showDialog),
stateSelector: 'a[href]',
context: 'insert',
prependToContext: true
});
});