vue-markdown/src/markdown/js/print.js

121 lines
3.0 KiB
JavaScript

var Print = function (dom, options) {
if (! (this instanceof Print)) return new Print(dom, options);
this.options = this.extend({
'noPrint' : '.no-print'
}, options);
if ((typeof dom) === 'string') {
this.dom = document.querySelector(dom);
} else {
this.dom = dom;
}
this.init();
};
Print.prototype = {
init : function () {
var content = this.getStyle() + this.getHtml();
this.writeIframe(content);
},
extend : function (obj, obj2) {
for (var k in obj2) {
obj[k] = obj2[k];
}
return obj;
},
getStyle : function () {
var str = '',
styles = document.querySelectorAll('style,link');
for (var i = 0 ; i<styles.length ; i ++) {
str += styles[i].outerHTML;
}
str += '<style>' + (this.options.noPrint ? this.options.noPrint: '.no-print') + '{display:none;}</style>';
return str;
},
getHtml : function () {
var inputs = document.querySelectorAll('input');
var textareas = document.querySelectorAll('textarea');
var selects = document.querySelectorAll('select');
for (var k in inputs) {
if (inputs[k].type == 'checkbox' || inputs[k].type == 'radio') {
if (inputs[k].checked == true) {
inputs[k].setAttribute('checked', 'checked')
} else {
inputs[k].removeAttribute('checked')
}
} else if (inputs[k].type == 'text') {
inputs[k].setAttribute('value', inputs[k].value)
}
}
for (var k2 in textareas) {
if (textareas[k2].type == 'textarea') {
textareas[k2].innerHTML = textareas[k2].value
}
}
for (var k3 in selects) {
if (selects[k3].type == 'select-one') {
var child = selects[k3].children;
for (var i in child) {
if (child[i].tagName == 'OPTION') {
if (child[i].selected == true) {
child[i].setAttribute('selected', 'selected')
} else {
child[i].removeAttribute('selected')
}
}
}
}
}
return this.dom.outerHTML;
},
writeIframe : function (content) {
var w, doc, iframe = document.createElement('iframe'),
f = document.body.appendChild(iframe);
iframe.id = 'myIframe';
iframe.style = 'position:absolute;width:0;height:0;top:-10px;left:-10px;';
w = f.contentWindow || f.contentDocument;
doc = f.contentDocument || f.contentWindow.document;
doc.open();
doc.write(content);
doc.close();
this.toPrint(w);
setTimeout(function () {
document.body.removeChild(iframe)
}, 100)
},
toPrint : function (frameWindow) {
try {
setTimeout(function () {
frameWindow.focus();
try {
if (! frameWindow.document.execCommand('print', false, null)) {
frameWindow.print();
}
} catch (e) {
frameWindow.print();
}
frameWindow.close();
}, 10);
} catch (err) {
console.log('err', err);
}
}
};
window.Print = Print;
export default function _Print(dom) {
Print(dom);
}