(function (context, factory) {
if (typeof module != 'undefined' && typeof module.exports == 'object') {
module.exports = factory(context);
} else {
factory(context, true);
}
})(window || this, function (context, bind) {
function promise(executor) {
return new Promise(executor);
}
var $TYPE = 'nodeType', $TEXT = 'textContent', $PARENT = 'parentNode', $NEXT = 'nextSibling', $FIRST = 'firstChild', NIL = {};
function leaf(node) {
return node[$TYPE] == 3;
}
function next(node, tree) {
var it = tree ? node[$FIRST] || node[$NEXT] : node[$NEXT];
if (it) {
if (leaf(it)) return it;
return next(it, true);
}
var parent = node[$PARENT];
return parent && next(parent);
}
function parent(node) {
return node[$PARENT];
}
function wrap(node, start, end) {
if (!node) throw 'node is null';
if (!leaf(node)) throw 'node is not a leaf:' + node.tagName;
var rawText = node[$TEXT];
var rawLength = rawText.length;
var self = {
node: node,
text: function (text) {
if (text !== undefined) {
node.textContent = text;
return wrap(node, 0, text.length);
}
return rawText.substring(self.start(), self.end());
},
is: function (other) {
return node == other.node;
},
start: function() {
return start === NIL || !start ? 0 : start;
},
end: function() {
return end === NIL || !end ? rawLength : end;
},
length: function() {
return self.end() - self.start();
},
to: function (end) {
return wrap(node, self.start(), end.end());
},
toLast: function() {
return wrap(node, start, rawLength);
},
next: function() {
var it = next(node);
return it && wrap(it);
},
split: function() {
if (self.length() >= rawLength) return self;
var stack = [0].concat(self.start() || []).concat(self.end()).concat(self.end() != rawLength ? rawLength : []);
var start = stack.shift();
var separated = [];
while (stack.length) {
var end = stack.shift();
var text = document.createTextNode(rawText.substring(start, end));
self.after(text);
separated.push(wrap(text));
start = end;
}
self.remove();
return !self.start() ? separated[0] : separated[1];
},
remove: function (optimized) {
var parent = node[$PARENT];
if (optimized && parent.childNodes.length == 1) {
parent[$PARENT].removeChild(parent);
}
parent.removeChild(node);
return this;
},
merge: function (other) {
var it = self.split();
return it.text(other.split().remove(true).text() + it.text());
},
after: function (e) {
node[$PARENT].insertBefore(e, node);
return this;
},
wrap: function (e) {
e.appendChild(self.split().after(e).node);
}
};
return self;
}
function select(start, end) {
return promise(function (resolve) {
start = wrap(start.text, start.offset, NIL), end = wrap(end.text, NIL, end.offset);
var selected = [];
while (start) {
if (start.is(end)) {
selected.push(start.to(end));
break;
}
selected.push(start.toLast());
start = start.next();
}
resolve(selected);
});
}
function merge(filter) {
return function (parts) {
var result = [parts.shift()];
while (parts.length) {
var prev = result.pop();
var next = parts.shift();
if (filter(prev.node, next.node)) {
result.push(next.merge(prev));
} else {
result.push(prev);
result.push(next);
}
}
return result;
}
}
function filter(test) {
return function (parts) {
return parts.filter(function (part) {
return test(part.node);
});
}
}
function apply(consume) {
return function (parts) {
return parts.forEach(function (part) {
return consume(part);
});
}
}
var exports = {
__esModule: true,
default: select,
select: select,
merge: merge,
filter: filter,
apply: apply
};
if (bind)for (var name in exports)context[name] = exports[name];
return exports;
});
(function() {
var COMPONENT_ID = 'highlight-' + +new Date;
var highlighter = {
init: function() {
this.bindEvents();
},
/**
*
*/
bindEvents: function() {
var self = this;
$('.swatch').on('click', function() {
$('.swatch').removeClass('active');
$(this).addClass('active');
});
$('.content').mouseup(function() {
var current = self.actived();
if (current.hasClass('clear')) {
self.clear();
} else {
self.highlight();
}
});
},
actived: function() {
return $('.swatch.active');
},
color: function() {
return this.actived().css('background-color');
},
/**
*
*/
highlight: function() {
var self = this;
var selection = self.getSelection();
if (selection) {
self.select(selection.getRangeAt(0)).//
then(merge(function (left, right) {
var p1 = left.parentNode;
var p2 = right.parentNode;
var a1 = self.compare(left);
var a2 = self.compare(right);
return (a1 && a2 && p1.parentNode == p2.parentNode) ||
(!a1 && !a2 && p1 == p2) ||
(a1 && !a2 && p1.parentNode == p2) ||
(!a1 && a2 && p2.parentNode == p1);
})).then(filter(function (part) {
return !self.compare(part);
})).then(function (parts) {
parts.map(function (node) {
node.wrap(self.component());
});
}).catch(function (e) {
console.log(e);
});
selection.removeAllRanges();
}
},
component: function() {
return $('<span data-toggle="' + COMPONENT_ID + '">').css('background-color', this.color()).get(0);
},
compare: function (text) {
var self = this;
var parent = $(text).parent();
var highlighted = parent.is(self.selector());
var color = parent.css('background-color');
return highlighted && color == self.color();
},
selector: function() {
return '[data-toggle="?"]'.replace(/\?/, COMPONENT_ID);
},
clear: function() {
var self = this;
var selection = self.getSelection();
if (selection) {
self.select(selection.getRangeAt(0)).then(apply(function (part) {
var text = $(part.split().node);
while (true) {
var comp = text.closest(self.selector());
if (!comp || !comp.length) {
break;
}
var children = comp.contents();
var first = children[0], last = children[children.length - 1];
if (text.is(last)) {
comp.after(text);
} else if (text.is(first)) {
comp.before(text);
} else {
var heading = comp.clone().empty();
for (var i = 0; i < children.length; i++) {
if (text.is(children[i])) {
break;
}
heading.append(children[i]);
}
comp.before(heading).before(text);
}
if (first == last) comp.remove();
}
}));
selection.removeAllRanges();
}
},
select: function (range) {
return select(
{text: range.startContainer, offset: range.startOffset},
{text: range.endContainer, offset: range.endOffset}
);
},
getSelection: function() {
var sel = window.getSelection();
return /^\s*$/.test(self && sel.toString()) ? null : sel;
}
};
highlighter.init();
})();
body {
margin: 0;
background: #fafafa;
box-shadow: 0 0 5rem rgba(0, 0, 0, 0.25) inset;
}
::-moz-selection {
background-color: rgba(0, 0, 0, 0.2);
}
::selection {
background-color: rgba(0, 0, 0, 0.2);
}
.content {
padding: 100px;
}
.footer {
padding: 0 100px 0 100px;
flex-basis: 100%;
height: 60px;
background: #292B2C;
position:fixed;top:0;width:100%;
}
.footer .items-left {
float: left;
}
.footer-item {
line-height: 60px;
}
#colors {
padding: 12px;
}
.swatch {
width: 30px;
height: 30px;
border-radius: 15px;
box-shadow: inset 0px 1px 0px rgba(255, 255, 255, 0.5), 0px 2px 2px rgba(0, 0, 0, 0.5);
display: inline-block;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="content">
<span style="color:red;"><b>Content</b> <i>Lorem</i> <font size='7'>ipsum</font> dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et
dolore magna aliqua. Ut enim ad minim</span> veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea
commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla
pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est
laborum.
Content Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et
dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea
commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla
pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est
laborum.
Content Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et
dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea
commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla
pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est
laborum.
Content Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et
dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea
commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla
pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est
laborum.
</div>
<div class="footer">
<div class="items-left">
<div id="colors">
<div class="swatch active" style="background-color: rgba(255,255,131,.5);"></div>
<div class="swatch" style="background-color: rgba(255,140,218,.5);"></div>
<div class="swatch" style="background-color: rgba(144,255,184,.5);"></div>
<div class="swatch clear"></div>
</div>
</div>
</div>
我建议你在该相互作用是如何实现的第二个想法。什么意思是用户选择了一个完整的已经选择的选择？选择的一部分？等等。因为你最终可能会减少交互并简化场景。只是评论的情况下，它可以帮助:) – Alvaro
有趣...不知道如何简化这更多，仍然保持功能... –
关闭....但没有雪茄：https://jsfiddle.net/4hd2vrex/2/ –