修改打印界面
夜笙歌
1 week ago
parent
109b0dba5b
commit
473380d197
@ -0,0 +1,311 @@
|
||||
/* @license
|
||||
* jQuery.print, version 1.6.2
|
||||
* Licence: CC-By (http://creativecommons.org/licenses/by/3.0/)
|
||||
*--------------------------------------------------------------------------*/
|
||||
(function ($) {
|
||||
"use strict";
|
||||
// A nice closure for our definitions
|
||||
|
||||
function jQueryCloneWithSelectAndTextAreaValues(elmToClone, withDataAndEvents, deepWithDataAndEvents) {
|
||||
// Replacement jQuery clone that also clones the values in selects and textareas as jQuery doesn't for performance reasons - https://stackoverflow.com/questions/742810/clone-isnt-cloning-select-values
|
||||
// Based on https://github.com/spencertipping/jquery.fix.clone
|
||||
var $elmToClone = $(elmToClone),
|
||||
$result = $elmToClone.clone(withDataAndEvents, deepWithDataAndEvents),
|
||||
$myTextareas = $elmToClone.find('textarea').add($elmToClone.filter('textarea')),
|
||||
$resultTextareas = $result.find('textarea').add($result.filter('textarea')),
|
||||
$mySelects = $elmToClone.find('select').add($elmToClone.filter('select')),
|
||||
$resultSelects = $result.find('select').add($result.filter('select')),
|
||||
$myCanvas = $elmToClone.find('canvas').add($elmToClone.filter('canvas')),
|
||||
$resultCanvas = $result.find('canvas').add($result.filter('canvas')),
|
||||
i, l, j, m, myCanvasContext;
|
||||
|
||||
for (i = 0, l = $myTextareas.length; i < l; ++i) {
|
||||
$($resultTextareas[i]).val($($myTextareas[i]).val());
|
||||
}
|
||||
for (i = 0, l = $mySelects.length; i < l; ++i) {
|
||||
for (j = 0, m = $mySelects[i].options.length; j < m; ++j) {
|
||||
if ($mySelects[i].options[j].selected === true) {
|
||||
$resultSelects[i].options[j].selected = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
for (i = 0, l = $myCanvas.length; i < l; ++i) {
|
||||
// https://stackoverflow.com/a/41242597
|
||||
myCanvasContext = $myCanvas[i].getContext('2d');
|
||||
if(myCanvasContext) {
|
||||
$resultCanvas[i].getContext('2d').drawImage($myCanvas[i], 0,0);
|
||||
$($resultCanvas[i]).attr("data-jquery-print", myCanvasContext.canvas.toDataURL());
|
||||
}
|
||||
}
|
||||
return $result;
|
||||
}
|
||||
|
||||
function getjQueryObject(string) {
|
||||
// Make string a vaild jQuery thing
|
||||
var jqObj = $("");
|
||||
try {
|
||||
jqObj = jQueryCloneWithSelectAndTextAreaValues(string);
|
||||
} catch (e) {
|
||||
jqObj = $("<span />")
|
||||
.html(string);
|
||||
}
|
||||
return jqObj;
|
||||
}
|
||||
|
||||
function printFrame(frameWindow, content, options) {
|
||||
// Print the selected window/iframe
|
||||
var def = $.Deferred();
|
||||
try {
|
||||
frameWindow = frameWindow.contentWindow || frameWindow.contentDocument || frameWindow;
|
||||
try {
|
||||
frameWindow.resizeTo(window.innerWidth, window.innerHeight);
|
||||
} catch (err) {
|
||||
console.warn(err);
|
||||
}
|
||||
var wdoc = frameWindow.document || frameWindow.contentDocument || frameWindow;
|
||||
if(options.doctype) {
|
||||
wdoc.write(options.doctype);
|
||||
}
|
||||
wdoc.write(content);
|
||||
try {
|
||||
var canvas = wdoc.querySelectorAll('canvas');
|
||||
for(var i = 0; i < canvas.length; i++) {
|
||||
var ctx = canvas[i].getContext("2d");
|
||||
var image = new Image();
|
||||
image.onload = function() {
|
||||
ctx.drawImage(image, 0, 0);
|
||||
};
|
||||
image.src = canvas[i].getAttribute("data-jquery-print");
|
||||
}
|
||||
} catch (err) {
|
||||
console.warn(err);
|
||||
}
|
||||
wdoc.close();
|
||||
var printed = false,
|
||||
callPrint = function () {
|
||||
if(printed) {
|
||||
return;
|
||||
}
|
||||
// Fix for IE : Allow it to render the iframe
|
||||
frameWindow.focus();
|
||||
try {
|
||||
// Fix for IE11 - printng the whole page instead of the iframe content
|
||||
if (!frameWindow.document.execCommand('print', false, null)) {
|
||||
// document.execCommand returns false if it failed -http://stackoverflow.com/a/21336448/937891
|
||||
frameWindow.print();
|
||||
}
|
||||
// focus body as it is losing focus in iPad and content not getting printed
|
||||
$('body').focus();
|
||||
} catch (e) {
|
||||
frameWindow.print();
|
||||
}
|
||||
frameWindow.close();
|
||||
printed = true;
|
||||
def.resolve();
|
||||
};
|
||||
// Print once the frame window loads - seems to work for the new-window option but unreliable for the iframe
|
||||
$(frameWindow).on("load", callPrint);
|
||||
// Fallback to printing directly if the frame doesn't fire the load event for whatever reason
|
||||
setTimeout(callPrint, options.timeout);
|
||||
} catch (err) {
|
||||
def.reject(err);
|
||||
}
|
||||
return def;
|
||||
}
|
||||
|
||||
function printContentInIFrame(content, options) {
|
||||
var $iframe = $(options.iframe + "");
|
||||
var iframeCount = $iframe.length;
|
||||
if (iframeCount === 0) {
|
||||
// Create a new iFrame if none is given
|
||||
$iframe = $('<iframe height="0" width="0" border="0" wmode="Opaque"/>')
|
||||
.prependTo('body')
|
||||
.css({
|
||||
"position": "absolute",
|
||||
"top": -999,
|
||||
"left": -999
|
||||
});
|
||||
}
|
||||
var frameWindow = $iframe.get(0);
|
||||
return printFrame(frameWindow, content, options)
|
||||
.done(function () {
|
||||
// Success
|
||||
setTimeout(function () {
|
||||
// Wait for IE
|
||||
if (iframeCount === 0) {
|
||||
// Destroy the iframe if created here
|
||||
$iframe.remove();
|
||||
}
|
||||
}, 1000);
|
||||
})
|
||||
.fail(function (err) {
|
||||
// Use the pop-up method if iframe fails for some reason
|
||||
console.error("Failed to print from iframe", err);
|
||||
printContentInNewWindow(content, options);
|
||||
})
|
||||
.always(function () {
|
||||
try {
|
||||
options.deferred.resolve();
|
||||
} catch (err) {
|
||||
console.warn('Error notifying deferred', err);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
function printContentInNewWindow(content, options) {
|
||||
// Open a new window and print selected content
|
||||
var frameWindow = window.open();
|
||||
return printFrame(frameWindow, content, options)
|
||||
.always(function () {
|
||||
try {
|
||||
options.deferred.resolve();
|
||||
} catch (err) {
|
||||
console.warn('Error notifying deferred', err);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
function isNode(o) {
|
||||
/* http://stackoverflow.com/a/384380/937891 */
|
||||
return !!(typeof Node === "object" ? o instanceof Node : o && typeof o === "object" && typeof o.nodeType === "number" && typeof o.nodeName === "string");
|
||||
}
|
||||
$.print = $.fn.print = function () {
|
||||
// Print a given set of elements
|
||||
var options, $this, self = this;
|
||||
// console.log("Printing", this, arguments);
|
||||
if (self instanceof $) {
|
||||
// Get the node if it is a jQuery object
|
||||
self = self.get(0);
|
||||
}
|
||||
if (isNode(self)) {
|
||||
// If `this` is a HTML element, i.e. for
|
||||
// $(selector).print()
|
||||
$this = $(self);
|
||||
if (arguments.length > 0) {
|
||||
options = arguments[0];
|
||||
}
|
||||
} else {
|
||||
if (arguments.length > 0) {
|
||||
// $.print(selector,options)
|
||||
$this = $(arguments[0]);
|
||||
if (isNode($this[0])) {
|
||||
if (arguments.length > 1) {
|
||||
options = arguments[1];
|
||||
}
|
||||
} else {
|
||||
// $.print(options)
|
||||
options = arguments[0];
|
||||
$this = $("html");
|
||||
}
|
||||
} else {
|
||||
// $.print()
|
||||
$this = $("html");
|
||||
}
|
||||
}
|
||||
// Default options
|
||||
var defaults = {
|
||||
globalStyles: true,
|
||||
mediaPrint: false,
|
||||
stylesheet: null,
|
||||
noPrintSelector: ".no-print",
|
||||
iframe: true,
|
||||
append: null,
|
||||
prepend: null,
|
||||
manuallyCopyFormValues: true,
|
||||
deferred: $.Deferred(),
|
||||
timeout: 750,
|
||||
title: null,
|
||||
doctype: '<!doctype html>'
|
||||
};
|
||||
// Merge with user-options
|
||||
options = $.extend({}, defaults, (options || {}));
|
||||
var $styles = $("");
|
||||
if (options.globalStyles) {
|
||||
// Apply the stlyes from the current sheet to the printed page
|
||||
$styles = $("style, link, meta, base, title");
|
||||
} else if (options.mediaPrint) {
|
||||
// Apply the media-print stylesheet
|
||||
$styles = $("link[media=print]");
|
||||
}
|
||||
if (options.stylesheet) {
|
||||
// Add a custom stylesheet(s) if given
|
||||
if (!(($.isArray ? $.isArray : Array.isArray)(options.stylesheet))) {
|
||||
options.stylesheet = [options.stylesheet]
|
||||
}
|
||||
for(var i = 0; i < options.stylesheet.length; i++) {
|
||||
$styles = $.merge($styles, $('<link rel="stylesheet" href="' + options.stylesheet[i] + '">'));
|
||||
}
|
||||
}
|
||||
// Create a copy of the element to print
|
||||
var copy = jQueryCloneWithSelectAndTextAreaValues($this, true, true);
|
||||
// Wrap it in a span to get the HTML markup string
|
||||
copy = $("<span/>")
|
||||
.append(copy);
|
||||
// Remove unwanted elements
|
||||
copy.find(options.noPrintSelector)
|
||||
.remove();
|
||||
// Add in the styles
|
||||
copy.append(jQueryCloneWithSelectAndTextAreaValues($styles));
|
||||
// Update title
|
||||
if (options.title) {
|
||||
var title = $("title", copy);
|
||||
if (title.length === 0) {
|
||||
title = $("<title />");
|
||||
copy.append(title);
|
||||
}
|
||||
title.text(options.title);
|
||||
}
|
||||
// Appedned content
|
||||
copy.append(getjQueryObject(options.append));
|
||||
// Prepended content
|
||||
copy.prepend(getjQueryObject(options.prepend));
|
||||
if (options.manuallyCopyFormValues) {
|
||||
// Manually copy form values into the HTML for printing user-modified input fields
|
||||
// http://stackoverflow.com/a/26707753
|
||||
copy.find("input")
|
||||
.each(function () {
|
||||
var $field = $(this);
|
||||
if ($field.is("[type='radio']") || $field.is("[type='checkbox']")) {
|
||||
if ($field.prop("checked")) {
|
||||
$field.attr("checked", "checked");
|
||||
}
|
||||
} else {
|
||||
$field.attr("value", $field.val());
|
||||
}
|
||||
});
|
||||
copy.find("select").each(function () {
|
||||
var $field = $(this);
|
||||
$field.find(":selected").attr("selected", "selected");
|
||||
});
|
||||
copy.find("textarea").each(function () {
|
||||
// Fix for https://github.com/DoersGuild/jQuery.print/issues/18#issuecomment-96451589
|
||||
var $field = $(this);
|
||||
$field.text($field.val());
|
||||
});
|
||||
}
|
||||
// Get the HTML markup string
|
||||
var content = copy.html();
|
||||
// Notify with generated markup & cloned elements - useful for logging, etc
|
||||
try {
|
||||
options.deferred.notify('generated_markup', content, copy);
|
||||
} catch (err) {
|
||||
console.warn('Error notifying deferred', err);
|
||||
}
|
||||
// Destroy the copy
|
||||
copy.remove();
|
||||
if (options.iframe) {
|
||||
// Use an iframe for printing
|
||||
try {
|
||||
printContentInIFrame(content, options);
|
||||
} catch (e) {
|
||||
// Use the pop-up method if iframe fails for some reason
|
||||
console.error("Failed to print from iframe", e.stack, e.message);
|
||||
printContentInNewWindow(content, options);
|
||||
}
|
||||
} else {
|
||||
// Use a new window for printing
|
||||
printContentInNewWindow(content, options);
|
||||
}
|
||||
return this;
|
||||
};
|
||||
})(jQuery);
|
||||
Loading…
Reference in New Issue