/**
* Plugin for the frame module to handle execCommands for Editor
* @class Plugin.ExecCommand
* @extends Base
* @constructor
* @module editor
* @submodule exec-command
*/
var ExecCommand = function() {
ExecCommand.superclass.constructor.apply(this, arguments);
};
Y.extend(ExecCommand, Y.Base, {
/**
* An internal reference to the keyCode of the last key that was pressed.
* @private
* @property _lastKey
*/
_lastKey: null,
/**
* An internal reference to the instance of the frame plugged into.
* @private
* @property _inst
*/
_inst: null,
/**
* Execute a command on the frame's document.
* @method command
* @param {String} action The action to perform (bold, italic, fontname)
* @param {String} value The optional value (helvetica)
* @return {Node/NodeList} Should return the Node/Nodelist affected
*/
command: function(action, value) {
var fn = ExecCommand.COMMANDS[action];
Y.log('execCommand(' + action + '): "' + value + '"', 'info', 'exec-command');
if (fn) {
Y.log('OVERIDE execCommand(' + action + '): "' + value + '"', 'info', 'exec-command');
return fn.call(this, action, value);
} else {
return this._command(action, value);
}
},
/**
* The private version of execCommand that doesn't filter for overrides.
* @private
* @method _command
* @param {String} action The action to perform (bold, italic, fontname)
* @param {String} value The optional value (helvetica)
*/
_command: function(action, value) {
var inst = this.getInstance();
try {
try {
inst.config.doc.execCommand('styleWithCSS', null, 1);
} catch (e1) {
try {
inst.config.doc.execCommand('useCSS', null, 0);
} catch (e2) {
}
}
Y.log('Using default browser execCommand(' + action + '): "' + value + '"', 'info', 'exec-command');
inst.config.doc.execCommand(action, null, value);
} catch (e) {
Y.log(e.message, 'warn', 'exec-command');
}
},
/**
* Get's the instance of YUI bound to the parent frame
* @method getInstance
* @return {YUI} The YUI instance bound to the parent frame
*/
getInstance: function() {
if (!this._inst) {
this._inst = this.get('host').getInstance();
}
return this._inst;
},
initializer: function() {
Y.mix(this.get('host'), {
execCommand: function(action, value) {
return this.exec.command(action, value);
},
_execCommand: function(action, value) {
return this.exec._command(action, value);
}
});
this.get('host').on('dom:keypress', Y.bind(function(e) {
this._lastKey = e.keyCode;
}, this));
},
_wrapContent: function(str, override) {
var useP = (this.getInstance().host.editorPara && !override ? true : false);
if (useP) {
str = '<p>' + str + '</p>';
} else {
str = str + '<br>';
}
return str;
}
}, {
/**
* execCommand
* @property NAME
* @static
*/
NAME: 'execCommand',
/**
* exec
* @property NS
* @static
*/
NS: 'exec',
ATTRS: {
host: {
value: false
}
},
/**
* Static object literal of execCommand overrides
* @property COMMANDS
* @static
*/
COMMANDS: {
/**
* Wraps the content with a new element of type (tag)
* @method COMMANDS.wrap
* @static
* @param {String} cmd The command executed: wrap
* @param {String} tag The tag to wrap the selection with
* @return {NodeList} NodeList of the items touched by this command.
*/
wrap: function(cmd, tag) {
var inst = this.getInstance();
return (new inst.EditorSelection()).wrapContent(tag);
},
/**
* Inserts the provided HTML at the cursor, should be a single element.
* @method COMMANDS.inserthtml
* @static
* @param {String} cmd The command executed: inserthtml
* @param {String} html The html to insert
* @return {Node} Node instance of the item touched by this command.
*/
inserthtml: function(cmd, html) {
var inst = this.getInstance();
if (inst.EditorSelection.hasCursor() || Y.UA.ie) {
return (new inst.EditorSelection()).insertContent(html);
} else {
this._command('inserthtml', html);
}
},
/**
* Inserts the provided HTML at the cursor, and focuses the cursor afterwards.
* @method COMMANDS.insertandfocus
* @static
* @param {String} cmd The command executed: insertandfocus
* @param {String} html The html to insert
* @return {Node} Node instance of the item touched by this command.
*/
insertandfocus: function(cmd, html) {
var inst = this.getInstance(), out, sel;
if (inst.EditorSelection.hasCursor()) {
html += inst.EditorSelection.CURSOR;
out = this.command('inserthtml', html);
sel = new inst.EditorSelection();
sel.focusCursor(true, true);
} else {
this.command('inserthtml', html);
}
return out;
},
/**
* Inserts a BR at the current cursor position
* @method COMMANDS.insertbr
* @static
* @param {String} cmd The command executed: insertbr
*/
insertbr: function(cmd) {
var inst = this.getInstance(),
sel = new inst.EditorSelection(),
html = '<var>|</var>', last = null,
q = (Y.UA.webkit) ? 'span.Apple-style-span,var' : 'var';
if (sel._selection.pasteHTML) {
sel._selection.pasteHTML(html);
} else {
this._command('inserthtml', html);
}
var insert = function(n) {
var c = inst.Node.create('<br>');
n.insert(c, 'before');
return c;
};
inst.all(q).each(function(n) {
var g = true;
if (Y.UA.webkit) {
g = false;
if (n.get('innerHTML') === '|') {
g = true;
}
}
if (g) {
last = insert(n);
if ((!last.previous() || !last.previous().test('br')) && Y.UA.gecko) {
var s = last.cloneNode();
last.insert(s, 'after');
last = s;
}
n.remove();
}
});
if (Y.UA.webkit && last) {
insert(last);
sel.selectNode(last);
}
},
/**
* Inserts an image at the cursor position
* @method COMMANDS.insertimage
* @static
* @param {String} cmd The command executed: insertimage
* @param {String} img The url of the image to be inserted
* @return {Node} Node instance of the item touched by this command.
*/
insertimage: function(cmd, img) {
return this.command('inserthtml', '<img src="' + img + '">');
},
/**
* Add a class to all of the elements in the selection
* @method COMMANDS.addclass
* @static
* @param {String} cmd The command executed: addclass
* @param {String} cls The className to add
* @return {NodeList} NodeList of the items touched by this command.
*/
addclass: function(cmd, cls) {
var inst = this.getInstance();
return (new inst.EditorSelection()).getSelected().addClass(cls);
},
/**
* Remove a class from all of the elements in the selection
* @method COMMANDS.removeclass
* @static
* @param {String} cmd The command executed: removeclass
* @param {String} cls The className to remove
* @return {NodeList} NodeList of the items touched by this command.
*/
removeclass: function(cmd, cls) {
var inst = this.getInstance();
return (new inst.EditorSelection()).getSelected().removeClass(cls);
},
/**
* Adds a forecolor to the current selection, or creates a new element and applies it
* @method COMMANDS.forecolor
* @static
* @param {String} cmd The command executed: forecolor
* @param {String} val The color value to apply
* @return {NodeList} NodeList of the items touched by this command.
*/
forecolor: function(cmd, val) {
var inst = this.getInstance(),
sel = new inst.EditorSelection(), n;
if (!Y.UA.ie) {
this._command('useCSS', false);
}
if (inst.EditorSelection.hasCursor()) {
if (sel.isCollapsed) {
if (sel.anchorNode && (sel.anchorNode.get('innerHTML') === ' ')) {
sel.anchorNode.setStyle('color', val);
n = sel.anchorNode;
} else {
n = this.command('inserthtml', '<span style="color: ' + val + '">' + inst.EditorSelection.CURSOR + '</span>');
sel.focusCursor(true, true);
}
return n;
} else {
return this._command(cmd, val);
}
} else {
this._command(cmd, val);
}
},
/**
* Adds a background color to the current selection, or creates a new element and applies it
* @method COMMANDS.backcolor
* @static
* @param {String} cmd The command executed: backcolor
* @param {String} val The color value to apply
* @return {NodeList} NodeList of the items touched by this command.
*/
backcolor: function(cmd, val) {
var inst = this.getInstance(),
sel = new inst.EditorSelection(), n;
if (Y.UA.gecko || Y.UA.opera) {
cmd = 'hilitecolor';
}
if (!Y.UA.ie) {
this._command('useCSS', false);
}
if (inst.EditorSelection.hasCursor()) {
if (sel.isCollapsed) {
if (sel.anchorNode && (sel.anchorNode.get('innerHTML') === ' ')) {
sel.anchorNode.setStyle('backgroundColor', val);
n = sel.anchorNode;
} else {
n = this.command('inserthtml', '<span style="background-color: ' + val + '">' + inst.EditorSelection.CURSOR + '</span>');
sel.focusCursor(true, true);
}
return n;
} else {
return this._command(cmd, val);
}
} else {
this._command(cmd, val);
}
},
/**
* Sugar method, calles backcolor
* @method COMMANDS.hilitecolor
* @static
* @param {String} cmd The command executed: backcolor
* @param {String} val The color value to apply
* @return {NodeList} NodeList of the items touched by this command.
*/
hilitecolor: function() {
return ExecCommand.COMMANDS.backcolor.apply(this, arguments);
},
/**
* Adds a font name to the current selection, or creates a new element and applies it
* @method COMMANDS.fontname2
* @deprecated
* @static
* @param {String} cmd The command executed: fontname
* @param {String} val The font name to apply
* @return {NodeList} NodeList of the items touched by this command.
*/
fontname2: function(cmd, val) {
this._command('fontname', val);
var inst = this.getInstance(),
sel = new inst.EditorSelection();
if (sel.isCollapsed && (this._lastKey != 32)) {
if (sel.anchorNode.test('font')) {
sel.anchorNode.set('face', val);
}
}
},
/**
* Adds a fontsize to the current selection, or creates a new element and applies it
* @method COMMANDS.fontsize2
* @deprecated
* @static
* @param {String} cmd The command executed: fontsize
* @param {String} val The font size to apply
* @return {NodeList} NodeList of the items touched by this command.
*/
fontsize2: function(cmd, val) {
this._command('fontsize', val);
var inst = this.getInstance(),
sel = new inst.EditorSelection();
if (sel.isCollapsed && sel.anchorNode && (this._lastKey != 32)) {
if (Y.UA.webkit) {
if (sel.anchorNode.getStyle('lineHeight')) {
sel.anchorNode.setStyle('lineHeight', '');
}
}
if (sel.anchorNode.test('font')) {
sel.anchorNode.set('size', val);
} else if (Y.UA.gecko) {
var p = sel.anchorNode.ancestor(inst.EditorSelection.DEFAULT_BLOCK_TAG);
if (p) {
p.setStyle('fontSize', '');
}
}
}
},
/**
* Overload for COMMANDS.list
* @method COMMANDS.insertorderedlist
* @static
* @param {String} cmd The command executed: list, ul
*/
insertunorderedlist: function(cmd) {
this.command('list', 'ul');
},
/**
* Overload for COMMANDS.list
* @method COMMANDS.insertunorderedlist
* @static
* @param {String} cmd The command executed: list, ol
*/
insertorderedlist: function(cmd) {
this.command('list', 'ol');
},
/**
* Noramlizes lists creation/destruction for IE. All others pass through to native calls
* @method COMMANDS.list
* @static
* @param {String} cmd The command executed: list (not used)
* @param {String} tag The tag to deal with
*/
list: function(cmd, tag) {
var inst = this.getInstance(), html, self = this,
DIR = 'dir', cls = 'yui3-touched',
dir, range, div, elm, n, str, s, par, list, lis,
useP = (inst.host.editorPara ? true : false),
sel = new inst.EditorSelection();
cmd = 'insert' + ((tag === 'ul') ? 'un' : '') + 'orderedlist';
if (Y.UA.ie && !sel.isCollapsed) {
range = sel._selection;
html = range.htmlText;
div = inst.Node.create(html) || inst.one('body');
if (div.test('li') || div.one('li')) {
this._command(cmd, null);
return;
}
if (div.test(tag)) {
elm = range.item ? range.item(0) : range.parentElement();
n = inst.one(elm);
lis = n.all('li');
str = '<div>';
lis.each(function(l) {
str = self._wrapContent(l.get('innerHTML'));
});
str += '</div>';
s = inst.Node.create(str);
if (n.get('parentNode').test('div')) {
n = n.get('parentNode');
}
if (n && n.hasAttribute(DIR)) {
if (useP) {
s.all('p').setAttribute(DIR, n.getAttribute(DIR));
} else {
s.setAttribute(DIR, n.getAttribute(DIR));
}
}
if (useP) {
n.replace(s.get('innerHTML'));
} else {
n.replace(s);
}
if (range.moveToElementText) {
range.moveToElementText(s._node);
}
range.select();
} else {
par = Y.one(range.parentElement());
if (!par.test(inst.EditorSelection.BLOCKS)) {
par = par.ancestor(inst.EditorSelection.BLOCKS);
}
if (par) {
if (par.hasAttribute(DIR)) {
dir = par.getAttribute(DIR);
}
}
if (html.indexOf('<br>') > -1) {
html = html.split(/<br>/i);
} else {
var tmp = inst.Node.create(html),
ps = tmp ? tmp.all('p') : null;
if (ps && ps.size()) {
html = [];
ps.each(function(n) {
html.push(n.get('innerHTML'));
});
} else {
html = [html];
}
}
list = '<' + tag + ' id="ie-list">';
Y.each(html, function(v) {
var a = inst.Node.create(v);
if (a && a.test('p')) {
if (a.hasAttribute(DIR)) {
dir = a.getAttribute(DIR);
}
v = a.get('innerHTML');
}
list += '<li>' + v + '</li>';
});
list += '</' + tag + '>';
range.pasteHTML(list);
elm = inst.config.doc.getElementById('ie-list');
elm.id = '';
if (dir) {
elm.setAttribute(DIR, dir);
}
if (range.moveToElementText) {
range.moveToElementText(elm);
}
range.select();
}
} else if (Y.UA.ie) {
par = inst.one(sel._selection.parentElement());
if (par.test('p')) {
if (par && par.hasAttribute(DIR)) {
dir = par.getAttribute(DIR);
}
html = Y.EditorSelection.getText(par);
if (html === '') {
var sdir = '';
if (dir) {
sdir = ' dir="' + dir + '"';
}
list = inst.Node.create(Y.Lang.sub('<{tag}{dir}><li></li></{tag}>', { tag: tag, dir: sdir }));
par.replace(list);
sel.selectNode(list.one('li'));
} else {
this._command(cmd, null);
}
} else {
this._command(cmd, null);
}
} else {
inst.all(tag).addClass(cls);
if (sel.anchorNode.test(inst.EditorSelection.BLOCKS)) {
par = sel.anchorNode;
} else {
par = sel.anchorNode.ancestor(inst.EditorSelection.BLOCKS);
}
if (!par) { //No parent, find the first block under the anchorNode
par = sel.anchorNode.one(inst.EditorSelection.BLOCKS);
}
if (par && par.hasAttribute(DIR)) {
dir = par.getAttribute(DIR);
}
if (par && par.test(tag)) {
var hasPParent = par.ancestor('p');
html = inst.Node.create('<div/>');
elm = par.all('li');
elm.each(function(h) {
html.append(self._wrapContent(h.get('innerHTML'), hasPParent));
});
if (dir) {
if (useP) {
html.all('p').setAttribute(DIR, dir);
} else {
html.setAttribute(DIR, dir);
}
}
if (useP) {
html = inst.Node.create(html.get('innerHTML'));
}
var fc = html.get('firstChild');
par.replace(html);
sel.selectNode(fc);
} else {
this._command(cmd, null);
}
list = inst.all(tag);
if (dir) {
if (list.size()) {
//Changed to a List
list.each(function(n) {
if (!n.hasClass(cls)) {
n.setAttribute(DIR, dir);
}
});
}
}
list.removeClass(cls);
}
},
/**
* Noramlizes alignment for Webkit Browsers
* @method COMMANDS.justify
* @static
* @param {String} cmd The command executed: justify (not used)
* @param {String} val The actual command from the justify{center,all,left,right} stubs
*/
justify: function(cmd, val) {
if (Y.UA.webkit) {
var inst = this.getInstance(),
sel = new inst.EditorSelection(),
aNode = sel.anchorNode;
var bgColor = aNode.getStyle('backgroundColor');
this._command(val);
sel = new inst.EditorSelection();
if (sel.anchorNode.test('div')) {
var html = '<span>' + sel.anchorNode.get('innerHTML') + '</span>';
sel.anchorNode.set('innerHTML', html);
sel.anchorNode.one('span').setStyle('backgroundColor', bgColor);
sel.selectNode(sel.anchorNode.one('span'));
}
} else {
this._command(val);
}
},
/**
* Override method for COMMANDS.justify
* @method COMMANDS.justifycenter
* @static
*/
justifycenter: function(cmd) {
this.command('justify', 'justifycenter');
},
/**
* Override method for COMMANDS.justify
* @method COMMANDS.justifyleft
* @static
*/
justifyleft: function(cmd) {
this.command('justify', 'justifyleft');
},
/**
* Override method for COMMANDS.justify
* @method COMMANDS.justifyright
* @static
*/
justifyright: function(cmd) {
this.command('justify', 'justifyright');
},
/**
* Override method for COMMANDS.justify
* @method COMMANDS.justifyfull
* @static
*/
justifyfull: function(cmd) {
this.command('justify', 'justifyfull');
}
}
});
/**
* This method is meant to normalize IE's in ability to exec the proper command on elements with CSS styling.
* @method fixIETags
* @protected
* @param {String} cmd The command to execute
* @param {String} tag The tag to create
* @param {String} rule The rule that we are looking for.
*/
var fixIETags = function(cmd, tag, rule) {
var inst = this.getInstance(),
doc = inst.config.doc,
sel = doc.selection.createRange(),
o = doc.queryCommandValue(cmd),
html, reg, m, p, d, s, c;
if (o) {
html = sel.htmlText;
reg = new RegExp(rule, 'g');
m = html.match(reg);
if (m) {
html = html.replace(rule + ';', '').replace(rule, '');
sel.pasteHTML('<var id="yui-ie-bs">');
p = doc.getElementById('yui-ie-bs');
d = doc.createElement('div');
s = doc.createElement(tag);
d.innerHTML = html;
if (p.parentNode !== inst.config.doc.body) {
p = p.parentNode;
}
c = d.childNodes;
p.parentNode.replaceChild(s, p);
Y.each(c, function(f) {
s.appendChild(f);
});
sel.collapse();
if (sel.moveToElementText) {
sel.moveToElementText(s);
}
sel.select();
}
}
this._command(cmd);
};
if (Y.UA.ie) {
ExecCommand.COMMANDS.bold = function() {
fixIETags.call(this, 'bold', 'b', 'FONT-WEIGHT: bold');
};
ExecCommand.COMMANDS.italic = function() {
fixIETags.call(this, 'italic', 'i', 'FONT-STYLE: italic');
};
ExecCommand.COMMANDS.underline = function() {
fixIETags.call(this, 'underline', 'u', 'TEXT-DECORATION: underline');
};
}
Y.namespace('Plugin');
Y.Plugin.ExecCommand = ExecCommand;
