use the minified js
This commit is contained in:
Arvind Tiwari
parent
e93eda8845
commit
22121fa7bc
2 changed files with 6 additions and 395 deletions
|
|
@ -1,395 +0,0 @@
|
|||
/**
|
||||
* @license
|
||||
*
|
||||
* MIT License
|
||||
*
|
||||
* Copyright (c) 2017 Erik Koopmans
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in all
|
||||
* copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
* SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* Generate a PDF from an HTML element or string using html2canvas and jsPDF.
|
||||
*
|
||||
* @param {Element|string} source The source element or HTML string.
|
||||
* @param {Object=} opt An object of optional settings: 'margin', 'filename',
|
||||
* 'image' ('type' and 'quality'), and 'html2canvas' / 'jspdf', which are
|
||||
* sent as settings to their corresponding functions.
|
||||
*/
|
||||
|
||||
var html2pdf = (function(html2canvas, jsPDF) {
|
||||
|
||||
/* ---------- MAIN FUNCTION ---------- */
|
||||
|
||||
var html2pdf = function(source, opt) {
|
||||
// Handle input.
|
||||
opt = objType(opt) === 'object' ? opt : {};
|
||||
var source = html2pdf.parseInput(source, opt);
|
||||
|
||||
// Determine the PDF page size.
|
||||
var pageSize = jsPDF.getPageSize(opt.jsPDF);
|
||||
pageSize.inner = {
|
||||
width: pageSize.width - opt.margin[1] - opt.margin[3],
|
||||
height: pageSize.height - opt.margin[0] - opt.margin[2]
|
||||
};
|
||||
pageSize.inner.ratio = pageSize.inner.height / pageSize.inner.width;
|
||||
|
||||
// Copy the source element into a PDF-styled container div.
|
||||
var container = html2pdf.makeContainer(source, pageSize);
|
||||
var overlay = container.parentElement;
|
||||
|
||||
// Get the locations of all hyperlinks.
|
||||
if (opt.enableLinks) {
|
||||
// Find all anchor tags and get the container's bounds for reference.
|
||||
opt.links = [];
|
||||
var links = container.querySelectorAll('a');
|
||||
var containerRect = unitConvert(container.getBoundingClientRect(), pageSize.k);
|
||||
|
||||
// Treat each client rect as a separate link (for text-wrapping).
|
||||
Array.prototype.forEach.call(links, function(link) {
|
||||
var clientRects = link.getClientRects();
|
||||
for (var i=0; i<clientRects.length; i++) {
|
||||
var clientRect = unitConvert(clientRects[i], pageSize.k);
|
||||
clientRect.left -= containerRect.left;
|
||||
clientRect.top -= containerRect.top;
|
||||
opt.links.push({ el: link, clientRect: clientRect });
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
// Render the canvas and pass the result to makePDF.
|
||||
// var onRendered = opt.html2canvas.onrendered || function() {};
|
||||
// opt.html2canvas.onrendered = function(canvas) {
|
||||
// onRendered(canvas);
|
||||
// document.body.removeChild(overlay);
|
||||
// html2pdf.makePDF(canvas, pageSize, opt);
|
||||
// }
|
||||
html2canvas(container, opt.html2canvas)
|
||||
.then((canvas) => {
|
||||
// onRendered(canvas);
|
||||
document.body.removeChild(overlay);
|
||||
html2pdf.makePDF(canvas, pageSize, opt);
|
||||
});
|
||||
};
|
||||
|
||||
html2pdf.parseInput = function(source, opt) {
|
||||
// Parse the opt object.
|
||||
opt.jsPDF = opt.jsPDF || {};
|
||||
opt.html2canvas = opt.html2canvas || {};
|
||||
opt.filename = opt.filename && objType(opt.filename) === 'string' ? opt.filename : 'file.pdf';
|
||||
opt.enableLinks = opt.hasOwnProperty('enableLinks') ? opt.enableLinks : true;
|
||||
opt.image = opt.image || {};
|
||||
opt.image.type = opt.image.type || 'jpeg';
|
||||
opt.image.quality = opt.image.quality || 0.95;
|
||||
|
||||
// Parse the margin property of the opt object.
|
||||
switch (objType(opt.margin)) {
|
||||
case 'undefined':
|
||||
opt.margin = 0;
|
||||
case 'number':
|
||||
opt.margin = [opt.margin, opt.margin, opt.margin, opt.margin];
|
||||
break;
|
||||
case 'array':
|
||||
if (opt.margin.length === 2) {
|
||||
opt.margin = [opt.margin[0], opt.margin[1], opt.margin[0], opt.margin[1]];
|
||||
}
|
||||
if (opt.margin.length === 4) {
|
||||
break;
|
||||
}
|
||||
default:
|
||||
throw 'Invalid margin array.';
|
||||
}
|
||||
|
||||
// Parse the source element/string.
|
||||
if (!source) {
|
||||
throw 'Missing source element or string.';
|
||||
} else if (objType(source) === 'string') {
|
||||
source = createElement('div', { innerHTML: source });
|
||||
} else if (objType(source) === 'element') {
|
||||
source = cloneNode(source, opt.html2canvas.javascriptEnabled);
|
||||
} else {
|
||||
throw 'Invalid source - please specify an HTML Element or string.';
|
||||
}
|
||||
|
||||
// Return the parsed input (opt is modified in-place, no need to return).
|
||||
return source;
|
||||
};
|
||||
|
||||
html2pdf.makeContainer = function(source, pageSize) {
|
||||
// Define the CSS styles for the container and its overlay parent.
|
||||
var overlayCSS = {
|
||||
position: 'fixed', overflow: 'hidden', zIndex: 1000,
|
||||
left: 0, right: 0, bottom: 0, top: 0,
|
||||
backgroundColor: 'rgba(0,0,0,0.8)'
|
||||
};
|
||||
var containerCSS = {
|
||||
position: 'absolute', width: pageSize.inner.width + pageSize.unit,
|
||||
left: 0, right: 0, top: 0, height: 'auto', margin: 'auto',
|
||||
backgroundColor: 'white'
|
||||
};
|
||||
|
||||
// Set the overlay to hidden (could be changed in the future to provide a print preview).
|
||||
overlayCSS.opacity = 0;
|
||||
|
||||
// Create and attach the elements.
|
||||
var overlay = createElement('div', { className: 'html2pdf__overlay', style: overlayCSS });
|
||||
var container = createElement('div', { className: 'html2pdf__container', style: containerCSS });
|
||||
container.appendChild(source);
|
||||
overlay.appendChild(container);
|
||||
document.body.appendChild(overlay);
|
||||
|
||||
// Enable page-breaks.
|
||||
var pageBreaks = source.querySelectorAll('.html2pdf__page-break');
|
||||
var pxPageHeight = pageSize.inner.height * pageSize.k / 72 * 96;
|
||||
Array.prototype.forEach.call(pageBreaks, function(el) {
|
||||
el.style.display = 'block';
|
||||
var clientRect = el.getBoundingClientRect();
|
||||
el.style.height = pxPageHeight - (clientRect.top % pxPageHeight) + 'px';
|
||||
}, this);
|
||||
|
||||
// Return the container.
|
||||
return container;
|
||||
};
|
||||
|
||||
html2pdf.makePDF = function(canvas, pageSize, opt) {
|
||||
// Calculate the number of pages.
|
||||
var ctx = canvas.getContext('2d');
|
||||
var pxFullHeight = canvas.height;
|
||||
var pxPageHeight = Math.floor(canvas.width * pageSize.inner.ratio);
|
||||
var nPages = Math.ceil(pxFullHeight / pxPageHeight);
|
||||
|
||||
// Create a one-page canvas to split up the full image.
|
||||
var pageCanvas = document.createElement('canvas');
|
||||
var pageCtx = pageCanvas.getContext('2d');
|
||||
var pageHeight = pageSize.inner.height;
|
||||
pageCanvas.width = canvas.width;
|
||||
pageCanvas.height = pxPageHeight;
|
||||
|
||||
// Initialize the PDF.
|
||||
var pdf = new jsPDF(opt.jsPDF);
|
||||
|
||||
for (var page=0; page<nPages; page++) {
|
||||
// Trim the final page to reduce file size.
|
||||
if (page === nPages-1) {
|
||||
pageCanvas.height = pxFullHeight % pxPageHeight;
|
||||
pageHeight = pageCanvas.height * pageSize.inner.width / pageCanvas.width;
|
||||
}
|
||||
|
||||
// Display the page.
|
||||
var w = pageCanvas.width;
|
||||
var h = pageCanvas.height;
|
||||
pageCtx.fillStyle = 'white';
|
||||
pageCtx.fillRect(0, 0, w, h);
|
||||
pageCtx.drawImage(canvas, 0, page*pxPageHeight, w, h, 0, 0, w, h);
|
||||
|
||||
// Add the page to the PDF.
|
||||
if (page) pdf.addPage();
|
||||
var imgData = pageCanvas.toDataURL('image/' + opt.image.type, opt.image.quality);
|
||||
pdf.addImage(imgData, opt.image.type, opt.margin[1], opt.margin[0],
|
||||
pageSize.inner.width, pageHeight);
|
||||
|
||||
// Add hyperlinks.
|
||||
if (opt.enableLinks) {
|
||||
var pageTop = page * pageSize.inner.height;
|
||||
opt.links.forEach(function(link) {
|
||||
if (link.clientRect.top > pageTop && link.clientRect.top < pageTop + pageSize.inner.height) {
|
||||
var left = opt.margin[1] + link.clientRect.left;
|
||||
var top = opt.margin[0] + link.clientRect.top - pageTop;
|
||||
pdf.link(left, top, link.clientRect.width, link.clientRect.height, { url: link.el.href });
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
// Finish the PDF.
|
||||
pdf.save( opt.filename );
|
||||
}
|
||||
|
||||
|
||||
/* ---------- UTILS ---------- */
|
||||
|
||||
// Determine the type of a variable/object.
|
||||
var objType = function(obj) {
|
||||
if (typeof obj === 'undefined') return 'undefined';
|
||||
else if (typeof obj === 'string' || obj instanceof String) return 'string';
|
||||
else if (typeof obj === 'number' || obj instanceof Number) return 'number';
|
||||
else if (!!obj && obj.constructor === Array) return 'array';
|
||||
else if (obj && obj.nodeType === 1) return 'element';
|
||||
else if (typeof obj === 'object') return 'object';
|
||||
else return 'unknown';
|
||||
};
|
||||
|
||||
// Create an HTML element with optional className, innerHTML, and style.
|
||||
var createElement = function(tagName, opt) {
|
||||
var el = document.createElement(tagName);
|
||||
if (opt.className) el.className = opt.className;
|
||||
if (opt.innerHTML) {
|
||||
el.innerHTML = opt.innerHTML;
|
||||
var scripts = el.getElementsByTagName('script');
|
||||
for (var i = scripts.length; i-- > 0; null) {
|
||||
scripts[i].parentNode.removeChild(scripts[i]);
|
||||
}
|
||||
}
|
||||
for (var key in opt.style) {
|
||||
el.style[key] = opt.style[key];
|
||||
}
|
||||
return el;
|
||||
};
|
||||
|
||||
// Deep-clone a node and preserve contents/properties.
|
||||
var cloneNode = function(node, javascriptEnabled) {
|
||||
// Recursively clone the node.
|
||||
var clone = node.nodeType === 3 ? document.createTextNode(node.nodeValue) : node.cloneNode(false);
|
||||
for (var child = node.firstChild; child; child = child.nextSibling) {
|
||||
if (javascriptEnabled === true || child.nodeType !== 1 || child.nodeName !== 'SCRIPT') {
|
||||
clone.appendChild(cloneNode(child, javascriptEnabled));
|
||||
}
|
||||
}
|
||||
|
||||
if (node.nodeType === 1) {
|
||||
// Preserve contents/properties of special nodes.
|
||||
if (node.nodeName === 'CANVAS') {
|
||||
clone.width = node.width;
|
||||
clone.height = node.height;
|
||||
clone.getContext('2d').drawImage(node, 0, 0);
|
||||
} else if (node.nodeName === 'TEXTAREA' || node.nodeName === 'SELECT') {
|
||||
clone.value = node.value;
|
||||
}
|
||||
|
||||
// Preserve the node's scroll position when it loads.
|
||||
clone.addEventListener('load', function() {
|
||||
clone.scrollTop = node.scrollTop;
|
||||
clone.scrollLeft = node.scrollLeft;
|
||||
}, true);
|
||||
}
|
||||
|
||||
// Return the cloned node.
|
||||
return clone;
|
||||
}
|
||||
|
||||
// Convert units using the conversion value 'k' from jsPDF.
|
||||
var unitConvert = function(obj, k) {
|
||||
var newObj = {};
|
||||
for (var key in obj) {
|
||||
newObj[key] = obj[key] * 72 / 96 / k;
|
||||
}
|
||||
return newObj;
|
||||
};
|
||||
|
||||
// Get dimensions of a PDF page, as determined by jsPDF.
|
||||
jsPDF.getPageSize = function(orientation, unit, format) {
|
||||
// Decode options object
|
||||
if (typeof orientation === 'object') {
|
||||
var options = orientation;
|
||||
orientation = options.orientation;
|
||||
unit = options.unit || unit;
|
||||
format = options.format || format;
|
||||
}
|
||||
|
||||
// Default options
|
||||
unit = unit || 'mm';
|
||||
format = format || 'a4';
|
||||
orientation = ('' + (orientation || 'P')).toLowerCase();
|
||||
var format_as_string = ('' + format).toLowerCase();
|
||||
|
||||
// Size in pt of various paper formats
|
||||
var pageFormats = {
|
||||
'a0' : [2383.94, 3370.39], 'a1' : [1683.78, 2383.94],
|
||||
'a2' : [1190.55, 1683.78], 'a3' : [ 841.89, 1190.55],
|
||||
'a4' : [ 595.28, 841.89], 'a5' : [ 419.53, 595.28],
|
||||
'a6' : [ 297.64, 419.53], 'a7' : [ 209.76, 297.64],
|
||||
'a8' : [ 147.40, 209.76], 'a9' : [ 104.88, 147.40],
|
||||
'a10' : [ 73.70, 104.88], 'b0' : [2834.65, 4008.19],
|
||||
'b1' : [2004.09, 2834.65], 'b2' : [1417.32, 2004.09],
|
||||
'b3' : [1000.63, 1417.32], 'b4' : [ 708.66, 1000.63],
|
||||
'b5' : [ 498.90, 708.66], 'b6' : [ 354.33, 498.90],
|
||||
'b7' : [ 249.45, 354.33], 'b8' : [ 175.75, 249.45],
|
||||
'b9' : [ 124.72, 175.75], 'b10' : [ 87.87, 124.72],
|
||||
'c0' : [2599.37, 3676.54], 'c1' : [1836.85, 2599.37],
|
||||
'c2' : [1298.27, 1836.85], 'c3' : [ 918.43, 1298.27],
|
||||
'c4' : [ 649.13, 918.43], 'c5' : [ 459.21, 649.13],
|
||||
'c6' : [ 323.15, 459.21], 'c7' : [ 229.61, 323.15],
|
||||
'c8' : [ 161.57, 229.61], 'c9' : [ 113.39, 161.57],
|
||||
'c10' : [ 79.37, 113.39], 'dl' : [ 311.81, 623.62],
|
||||
'letter' : [612, 792],
|
||||
'government-letter' : [576, 756],
|
||||
'legal' : [612, 1008],
|
||||
'junior-legal' : [576, 360],
|
||||
'ledger' : [1224, 792],
|
||||
'tabloid' : [792, 1224],
|
||||
'credit-card' : [153, 243]
|
||||
};
|
||||
|
||||
// Unit conversion
|
||||
var k;
|
||||
switch (unit) {
|
||||
case 'pt': k = 1; break;
|
||||
case 'mm': k = 72 / 25.4; break;
|
||||
case 'cm': k = 72 / 2.54; break;
|
||||
case 'in': k = 72; break;
|
||||
case 'px': k = 72 / 96; break;
|
||||
case 'pc': k = 12; break;
|
||||
case 'em': k = 12; break;
|
||||
case 'ex': k = 6; break;
|
||||
default:
|
||||
throw ('Invalid unit: ' + unit);
|
||||
}
|
||||
|
||||
// Dimensions are stored as user units and converted to points on output
|
||||
var pageHeight, pageWidth;
|
||||
if (pageFormats.hasOwnProperty(format_as_string)) {
|
||||
pageHeight = pageFormats[format_as_string][1] / k;
|
||||
pageWidth = pageFormats[format_as_string][0] / k;
|
||||
} else {
|
||||
try {
|
||||
pageHeight = format[1];
|
||||
pageWidth = format[0];
|
||||
} catch (err) {
|
||||
throw new Error('Invalid format: ' + format);
|
||||
}
|
||||
}
|
||||
|
||||
// Handle page orientation
|
||||
if (orientation === 'p' || orientation === 'portrait') {
|
||||
orientation = 'p';
|
||||
if (pageWidth > pageHeight) {
|
||||
tmp = pageWidth;
|
||||
pageWidth = pageHeight;
|
||||
pageHeight = tmp;
|
||||
}
|
||||
} else if (orientation === 'l' || orientation === 'landscape') {
|
||||
orientation = 'l';
|
||||
if (pageHeight > pageWidth) {
|
||||
tmp = pageWidth;
|
||||
pageWidth = pageHeight;
|
||||
pageHeight = tmp;
|
||||
}
|
||||
} else {
|
||||
throw('Invalid orientation: ' + orientation);
|
||||
}
|
||||
|
||||
// Return information (k is the unit conversion ratio from pts)
|
||||
var info = { 'width': pageWidth, 'height': pageHeight, 'unit': unit, 'k': k };
|
||||
return info;
|
||||
};
|
||||
|
||||
|
||||
// Expose the html2pdf function.
|
||||
return html2pdf;
|
||||
}(html2canvas, jsPDF));
|
||||
6
hosting/static/hosting/js/html2pdf.min.js
vendored
Normal file
6
hosting/static/hosting/js/html2pdf.min.js
vendored
Normal file
File diff suppressed because one or more lines are too long
Loading…
Reference in a new issue