mirror of
https://gitee.com/vnotex/vnote.git
synced 2025-07-05 13:59:52 +08:00
support code block MathJax preview
This commit is contained in:
parent
c72398e887
commit
8239abec2a
@ -1419,6 +1419,11 @@ var previewCodeBlock = function(id, lang, text, isLivePreview) {
|
||||
|
||||
var setPreviewContent = function(lang, html) {
|
||||
previewDiv.innerHTML = html;
|
||||
|
||||
// Treat plantUML and graphviz the same.
|
||||
previewDiv.classList = VPlantUMLDivClass;
|
||||
if (lang == "puml" || lang == "dot") {
|
||||
previewDiv.classList = VPlantUMLDivClass;
|
||||
} else {
|
||||
previewDiv.className = '';
|
||||
}
|
||||
};
|
||||
|
48
src/resources/mathjax_preview.js
Normal file
48
src/resources/mathjax_preview.js
Normal file
@ -0,0 +1,48 @@
|
||||
var channelInitialized = false;
|
||||
|
||||
var contentDiv = document.getElementById('content-div');
|
||||
|
||||
var content;
|
||||
|
||||
new QWebChannel(qt.webChannelTransport,
|
||||
function(channel) {
|
||||
content = channel.objects.content;
|
||||
|
||||
content.requestPreviewMathJax.connect(previewMathJax);
|
||||
|
||||
channelInitialized = true;
|
||||
});
|
||||
|
||||
var previewMathJax = function(identifier, id, text) {
|
||||
if (text.length == 0) {
|
||||
return;
|
||||
}
|
||||
|
||||
var p = document.createElement('p');
|
||||
p.id = identifier + '_' + id;
|
||||
p.textContent = text;
|
||||
contentDiv.appendChild(p);
|
||||
|
||||
try {
|
||||
MathJax.Hub.Queue(["Typeset",
|
||||
MathJax.Hub,
|
||||
p,
|
||||
postProcessMathJax.bind(undefined, identifier, id, p)]);
|
||||
} catch (err) {
|
||||
console.log("err: " + err);
|
||||
contentDiv.removeChild(p);
|
||||
delete p;
|
||||
}
|
||||
};
|
||||
|
||||
var postProcessMathJax = function(identifier, id, container) {
|
||||
domtoimage.toPng(container, { height: container.clientHeight * 1.5 }).then(function (dataUrl) {
|
||||
var png = dataUrl.substring(dataUrl.indexOf(',') + 1);
|
||||
content.mathjaxResultReady(identifier, id, 'png', png);
|
||||
|
||||
contentDiv.removeChild(container);
|
||||
delete container;
|
||||
}).catch(function (err) {
|
||||
console.log("err: " + err);
|
||||
});
|
||||
};
|
15
src/resources/mathjax_preview_template.html
Normal file
15
src/resources/mathjax_preview_template.html
Normal file
@ -0,0 +1,15 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<meta charset="utf-8">
|
||||
<head>
|
||||
<link rel="stylesheet" type="text/css" href="CSS_PLACE_HOLDER">
|
||||
<script src="qrc:/resources/qwebchannel.js"></script>
|
||||
<!-- EXTRA_PLACE_HOLDER -->
|
||||
<script src="JS_PLACE_HOLDER" async></script>
|
||||
<script src="qrc:/utils/dom-to-image/dom-to-image.js" defer></script>
|
||||
<script src="qrc:/resources/mathjax_preview.js" defer></script>
|
||||
</head>
|
||||
<body>
|
||||
<div id="content-div"></div>
|
||||
</body>
|
||||
</html>
|
@ -128,7 +128,9 @@ SOURCES += main.cpp\
|
||||
dialog/vfixnotebookdialog.cpp \
|
||||
vplantumlhelper.cpp \
|
||||
vgraphvizhelper.cpp \
|
||||
vlivepreviewhelper.cpp
|
||||
vlivepreviewhelper.cpp \
|
||||
vmathjaxpreviewhelper.cpp \
|
||||
vmathjaxwebdocument.cpp
|
||||
|
||||
HEADERS += vmainwindow.h \
|
||||
vdirectorytree.h \
|
||||
@ -247,7 +249,9 @@ HEADERS += vmainwindow.h \
|
||||
dialog/vfixnotebookdialog.h \
|
||||
vplantumlhelper.h \
|
||||
vgraphvizhelper.h \
|
||||
vlivepreviewhelper.h
|
||||
vlivepreviewhelper.h \
|
||||
vmathjaxpreviewhelper.h \
|
||||
vmathjaxwebdocument.h
|
||||
|
||||
RESOURCES += \
|
||||
vnote.qrc \
|
||||
|
3
src/utils/dom-to-image/README.md
Normal file
3
src/utils/dom-to-image/README.md
Normal file
@ -0,0 +1,3 @@
|
||||
# [dom-to-image](https://github.com/tsayen/dom-to-image)
|
||||
v2.6.0
|
||||
Anatolii Saienko, Paul Bakaus (original idea)
|
779
src/utils/dom-to-image/dom-to-image.js
Normal file
779
src/utils/dom-to-image/dom-to-image.js
Normal file
@ -0,0 +1,779 @@
|
||||
(function (global) {
|
||||
'use strict';
|
||||
|
||||
var util = newUtil();
|
||||
var inliner = newInliner();
|
||||
var fontFaces = newFontFaces();
|
||||
var images = newImages();
|
||||
|
||||
// Default impl options
|
||||
var defaultOptions = {
|
||||
// Default is to fail on error, no placeholder
|
||||
imagePlaceholder: undefined,
|
||||
// Default cache bust is false, it will use the cache
|
||||
cacheBust: false
|
||||
};
|
||||
|
||||
var domtoimage = {
|
||||
toSvg: toSvg,
|
||||
toPng: toPng,
|
||||
toJpeg: toJpeg,
|
||||
toBlob: toBlob,
|
||||
toPixelData: toPixelData,
|
||||
impl: {
|
||||
fontFaces: fontFaces,
|
||||
images: images,
|
||||
util: util,
|
||||
inliner: inliner,
|
||||
options: {}
|
||||
}
|
||||
};
|
||||
|
||||
if (typeof module !== 'undefined')
|
||||
module.exports = domtoimage;
|
||||
else
|
||||
global.domtoimage = domtoimage;
|
||||
|
||||
|
||||
/**
|
||||
* @param {Node} node - The DOM Node object to render
|
||||
* @param {Object} options - Rendering options
|
||||
* @param {Function} options.filter - Should return true if passed node should be included in the output
|
||||
* (excluding node means excluding it's children as well). Not called on the root node.
|
||||
* @param {String} options.bgcolor - color for the background, any valid CSS color value.
|
||||
* @param {Number} options.width - width to be applied to node before rendering.
|
||||
* @param {Number} options.height - height to be applied to node before rendering.
|
||||
* @param {Object} options.style - an object whose properties to be copied to node's style before rendering.
|
||||
* @param {Number} options.quality - a Number between 0 and 1 indicating image quality (applicable to JPEG only),
|
||||
defaults to 1.0.
|
||||
* @param {String} options.imagePlaceholder - dataURL to use as a placeholder for failed images, default behaviour is to fail fast on images we can't fetch
|
||||
* @param {Boolean} options.cacheBust - set to true to cache bust by appending the time to the request url
|
||||
* @return {Promise} - A promise that is fulfilled with a SVG image data URL
|
||||
* */
|
||||
function toSvg(node, options) {
|
||||
options = options || {};
|
||||
copyOptions(options);
|
||||
return Promise.resolve(node)
|
||||
.then(function (node) {
|
||||
return cloneNode(node, options.filter, true);
|
||||
})
|
||||
.then(embedFonts)
|
||||
.then(inlineImages)
|
||||
.then(applyOptions)
|
||||
.then(function (clone) {
|
||||
return makeSvgDataUri(clone,
|
||||
options.width || util.width(node),
|
||||
options.height || util.height(node)
|
||||
);
|
||||
});
|
||||
|
||||
function applyOptions(clone) {
|
||||
if (options.bgcolor) clone.style.backgroundColor = options.bgcolor;
|
||||
|
||||
if (options.width) clone.style.width = options.width + 'px';
|
||||
if (options.height) clone.style.height = options.height + 'px';
|
||||
|
||||
if (options.style)
|
||||
Object.keys(options.style).forEach(function (property) {
|
||||
clone.style[property] = options.style[property];
|
||||
});
|
||||
|
||||
return clone;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {Node} node - The DOM Node object to render
|
||||
* @param {Object} options - Rendering options, @see {@link toSvg}
|
||||
* @return {Promise} - A promise that is fulfilled with a Uint8Array containing RGBA pixel data.
|
||||
* */
|
||||
function toPixelData(node, options) {
|
||||
return draw(node, options || {})
|
||||
.then(function (canvas) {
|
||||
return canvas.getContext('2d').getImageData(
|
||||
0,
|
||||
0,
|
||||
util.width(node),
|
||||
util.height(node)
|
||||
).data;
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {Node} node - The DOM Node object to render
|
||||
* @param {Object} options - Rendering options, @see {@link toSvg}
|
||||
* @return {Promise} - A promise that is fulfilled with a PNG image data URL
|
||||
* */
|
||||
function toPng(node, options) {
|
||||
return draw(node, options || {})
|
||||
.then(function (canvas) {
|
||||
return canvas.toDataURL();
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {Node} node - The DOM Node object to render
|
||||
* @param {Object} options - Rendering options, @see {@link toSvg}
|
||||
* @return {Promise} - A promise that is fulfilled with a JPEG image data URL
|
||||
* */
|
||||
function toJpeg(node, options) {
|
||||
options = options || {};
|
||||
return draw(node, options)
|
||||
.then(function (canvas) {
|
||||
return canvas.toDataURL('image/jpeg', options.quality || 1.0);
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {Node} node - The DOM Node object to render
|
||||
* @param {Object} options - Rendering options, @see {@link toSvg}
|
||||
* @return {Promise} - A promise that is fulfilled with a PNG image blob
|
||||
* */
|
||||
function toBlob(node, options) {
|
||||
return draw(node, options || {})
|
||||
.then(util.canvasToBlob);
|
||||
}
|
||||
|
||||
function copyOptions(options) {
|
||||
// Copy options to impl options for use in impl
|
||||
if(typeof(options.imagePlaceholder) === 'undefined') {
|
||||
domtoimage.impl.options.imagePlaceholder = defaultOptions.imagePlaceholder;
|
||||
} else {
|
||||
domtoimage.impl.options.imagePlaceholder = options.imagePlaceholder;
|
||||
}
|
||||
|
||||
if(typeof(options.cacheBust) === 'undefined') {
|
||||
domtoimage.impl.options.cacheBust = defaultOptions.cacheBust;
|
||||
} else {
|
||||
domtoimage.impl.options.cacheBust = options.cacheBust;
|
||||
}
|
||||
}
|
||||
|
||||
function draw(domNode, options) {
|
||||
return toSvg(domNode, options)
|
||||
.then(util.makeImage)
|
||||
.then(util.delay(100))
|
||||
.then(function (image) {
|
||||
var canvas = newCanvas(domNode);
|
||||
canvas.getContext('2d').drawImage(image, 0, 0);
|
||||
return canvas;
|
||||
});
|
||||
|
||||
function newCanvas(domNode) {
|
||||
var canvas = document.createElement('canvas');
|
||||
canvas.width = options.width || util.width(domNode);
|
||||
canvas.height = options.height || util.height(domNode);
|
||||
|
||||
if (options.bgcolor) {
|
||||
var ctx = canvas.getContext('2d');
|
||||
ctx.fillStyle = options.bgcolor;
|
||||
ctx.fillRect(0, 0, canvas.width, canvas.height);
|
||||
}
|
||||
|
||||
return canvas;
|
||||
}
|
||||
}
|
||||
|
||||
function cloneNode(node, filter, root) {
|
||||
if (!root && filter && !filter(node)) return Promise.resolve();
|
||||
|
||||
return Promise.resolve(node)
|
||||
.then(makeNodeCopy)
|
||||
.then(function (clone) {
|
||||
return cloneChildren(node, clone, filter);
|
||||
})
|
||||
.then(function (clone) {
|
||||
return processClone(node, clone);
|
||||
});
|
||||
|
||||
function makeNodeCopy(node) {
|
||||
if (node instanceof HTMLCanvasElement) return util.makeImage(node.toDataURL());
|
||||
return node.cloneNode(false);
|
||||
}
|
||||
|
||||
function cloneChildren(original, clone, filter) {
|
||||
var children = original.childNodes;
|
||||
if (children.length === 0) return Promise.resolve(clone);
|
||||
|
||||
return cloneChildrenInOrder(clone, util.asArray(children), filter)
|
||||
.then(function () {
|
||||
return clone;
|
||||
});
|
||||
|
||||
function cloneChildrenInOrder(parent, children, filter) {
|
||||
var done = Promise.resolve();
|
||||
children.forEach(function (child) {
|
||||
done = done
|
||||
.then(function () {
|
||||
return cloneNode(child, filter);
|
||||
})
|
||||
.then(function (childClone) {
|
||||
if (childClone) parent.appendChild(childClone);
|
||||
});
|
||||
});
|
||||
return done;
|
||||
}
|
||||
}
|
||||
|
||||
function processClone(original, clone) {
|
||||
if (!(clone instanceof Element)) return clone;
|
||||
|
||||
return Promise.resolve()
|
||||
.then(cloneStyle)
|
||||
.then(clonePseudoElements)
|
||||
.then(copyUserInput)
|
||||
.then(fixSvg)
|
||||
.then(function () {
|
||||
return clone;
|
||||
});
|
||||
|
||||
function cloneStyle() {
|
||||
// Fix MathJax issue.
|
||||
if (!clone.style) {
|
||||
return;
|
||||
}
|
||||
|
||||
copyStyle(window.getComputedStyle(original), clone.style);
|
||||
|
||||
function copyStyle(source, target) {
|
||||
if (source.cssText) target.cssText = source.cssText;
|
||||
else copyProperties(source, target);
|
||||
|
||||
function copyProperties(source, target) {
|
||||
util.asArray(source).forEach(function (name) {
|
||||
target.setProperty(
|
||||
name,
|
||||
source.getPropertyValue(name),
|
||||
source.getPropertyPriority(name)
|
||||
);
|
||||
});
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function clonePseudoElements() {
|
||||
[':before', ':after'].forEach(function (element) {
|
||||
clonePseudoElement(element);
|
||||
});
|
||||
|
||||
function clonePseudoElement(element) {
|
||||
var style = window.getComputedStyle(original, element);
|
||||
var content = style.getPropertyValue('content');
|
||||
|
||||
if (content === '' || content === 'none') return;
|
||||
|
||||
var className = util.uid();
|
||||
clone.className = clone.className + ' ' + className;
|
||||
var styleElement = document.createElement('style');
|
||||
styleElement.appendChild(formatPseudoElementStyle(className, element, style));
|
||||
clone.appendChild(styleElement);
|
||||
|
||||
function formatPseudoElementStyle(className, element, style) {
|
||||
var selector = '.' + className + ':' + element;
|
||||
var cssText = style.cssText ? formatCssText(style) : formatCssProperties(style);
|
||||
return document.createTextNode(selector + '{' + cssText + '}');
|
||||
|
||||
function formatCssText(style) {
|
||||
var content = style.getPropertyValue('content');
|
||||
return style.cssText + ' content: ' + content + ';';
|
||||
}
|
||||
|
||||
function formatCssProperties(style) {
|
||||
|
||||
return util.asArray(style)
|
||||
.map(formatProperty)
|
||||
.join('; ') + ';';
|
||||
|
||||
function formatProperty(name) {
|
||||
return name + ': ' +
|
||||
style.getPropertyValue(name) +
|
||||
(style.getPropertyPriority(name) ? ' !important' : '');
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function copyUserInput() {
|
||||
if (original instanceof HTMLTextAreaElement) clone.innerHTML = original.value;
|
||||
if (original instanceof HTMLInputElement) clone.setAttribute("value", original.value);
|
||||
}
|
||||
|
||||
function fixSvg() {
|
||||
if (!(clone instanceof SVGElement)) return;
|
||||
clone.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
|
||||
|
||||
if (!(clone instanceof SVGRectElement)) return;
|
||||
['width', 'height'].forEach(function (attribute) {
|
||||
var value = clone.getAttribute(attribute);
|
||||
if (!value) return;
|
||||
|
||||
clone.style.setProperty(attribute, value);
|
||||
});
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function embedFonts(node) {
|
||||
return fontFaces.resolveAll()
|
||||
.then(function (cssText) {
|
||||
var styleNode = document.createElement('style');
|
||||
node.appendChild(styleNode);
|
||||
styleNode.appendChild(document.createTextNode(cssText));
|
||||
return node;
|
||||
});
|
||||
}
|
||||
|
||||
function inlineImages(node) {
|
||||
return images.inlineAll(node)
|
||||
.then(function () {
|
||||
return node;
|
||||
});
|
||||
}
|
||||
|
||||
function makeSvgDataUri(node, width, height) {
|
||||
return Promise.resolve(node)
|
||||
.then(function (node) {
|
||||
node.setAttribute('xmlns', 'http://www.w3.org/1999/xhtml');
|
||||
return new XMLSerializer().serializeToString(node);
|
||||
})
|
||||
.then(util.escapeXhtml)
|
||||
.then(function (xhtml) {
|
||||
return '<foreignObject x="0" y="0" width="100%" height="100%">' + xhtml + '</foreignObject>';
|
||||
})
|
||||
.then(function (foreignObject) {
|
||||
return '<svg xmlns="http://www.w3.org/2000/svg" width="' + width + '" height="' + height + '">' +
|
||||
foreignObject + '</svg>';
|
||||
})
|
||||
.then(function (svg) {
|
||||
return 'data:image/svg+xml;charset=utf-8,' + svg;
|
||||
});
|
||||
}
|
||||
|
||||
function newUtil() {
|
||||
return {
|
||||
escape: escape,
|
||||
parseExtension: parseExtension,
|
||||
mimeType: mimeType,
|
||||
dataAsUrl: dataAsUrl,
|
||||
isDataUrl: isDataUrl,
|
||||
canvasToBlob: canvasToBlob,
|
||||
resolveUrl: resolveUrl,
|
||||
getAndEncode: getAndEncode,
|
||||
uid: uid(),
|
||||
delay: delay,
|
||||
asArray: asArray,
|
||||
escapeXhtml: escapeXhtml,
|
||||
makeImage: makeImage,
|
||||
width: width,
|
||||
height: height
|
||||
};
|
||||
|
||||
function mimes() {
|
||||
/*
|
||||
* Only WOFF and EOT mime types for fonts are 'real'
|
||||
* see http://www.iana.org/assignments/media-types/media-types.xhtml
|
||||
*/
|
||||
var WOFF = 'application/font-woff';
|
||||
var JPEG = 'image/jpeg';
|
||||
|
||||
return {
|
||||
'woff': WOFF,
|
||||
'woff2': WOFF,
|
||||
'ttf': 'application/font-truetype',
|
||||
'eot': 'application/vnd.ms-fontobject',
|
||||
'png': 'image/png',
|
||||
'jpg': JPEG,
|
||||
'jpeg': JPEG,
|
||||
'gif': 'image/gif',
|
||||
'tiff': 'image/tiff',
|
||||
'svg': 'image/svg+xml'
|
||||
};
|
||||
}
|
||||
|
||||
function parseExtension(url) {
|
||||
var match = /\.([^\.\/]*?)$/g.exec(url);
|
||||
if (match) return match[1];
|
||||
else return '';
|
||||
}
|
||||
|
||||
function mimeType(url) {
|
||||
var extension = parseExtension(url).toLowerCase();
|
||||
return mimes()[extension] || '';
|
||||
}
|
||||
|
||||
function isDataUrl(url) {
|
||||
return url.search(/^(data:)/) !== -1;
|
||||
}
|
||||
|
||||
function toBlob(canvas) {
|
||||
return new Promise(function (resolve) {
|
||||
var binaryString = window.atob(canvas.toDataURL().split(',')[1]);
|
||||
var length = binaryString.length;
|
||||
var binaryArray = new Uint8Array(length);
|
||||
|
||||
for (var i = 0; i < length; i++)
|
||||
binaryArray[i] = binaryString.charCodeAt(i);
|
||||
|
||||
resolve(new Blob([binaryArray], {
|
||||
type: 'image/png'
|
||||
}));
|
||||
});
|
||||
}
|
||||
|
||||
function canvasToBlob(canvas) {
|
||||
if (canvas.toBlob)
|
||||
return new Promise(function (resolve) {
|
||||
canvas.toBlob(resolve);
|
||||
});
|
||||
|
||||
return toBlob(canvas);
|
||||
}
|
||||
|
||||
function resolveUrl(url, baseUrl) {
|
||||
var doc = document.implementation.createHTMLDocument();
|
||||
var base = doc.createElement('base');
|
||||
doc.head.appendChild(base);
|
||||
var a = doc.createElement('a');
|
||||
doc.body.appendChild(a);
|
||||
base.href = baseUrl;
|
||||
a.href = url;
|
||||
return a.href;
|
||||
}
|
||||
|
||||
function uid() {
|
||||
var index = 0;
|
||||
|
||||
return function () {
|
||||
return 'u' + fourRandomChars() + index++;
|
||||
|
||||
function fourRandomChars() {
|
||||
/* see http://stackoverflow.com/a/6248722/2519373 */
|
||||
return ('0000' + (Math.random() * Math.pow(36, 4) << 0).toString(36)).slice(-4);
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
function makeImage(uri) {
|
||||
return new Promise(function (resolve, reject) {
|
||||
var image = new Image();
|
||||
image.onload = function () {
|
||||
resolve(image);
|
||||
};
|
||||
image.onerror = reject;
|
||||
image.src = uri;
|
||||
});
|
||||
}
|
||||
|
||||
function getAndEncode(url) {
|
||||
var TIMEOUT = 30000;
|
||||
if(domtoimage.impl.options.cacheBust) {
|
||||
// Cache bypass so we dont have CORS issues with cached images
|
||||
// Source: https://developer.mozilla.org/en/docs/Web/API/XMLHttpRequest/Using_XMLHttpRequest#Bypassing_the_cache
|
||||
url += ((/\?/).test(url) ? "&" : "?") + (new Date()).getTime();
|
||||
}
|
||||
|
||||
return new Promise(function (resolve) {
|
||||
var request = new XMLHttpRequest();
|
||||
|
||||
request.onreadystatechange = done;
|
||||
request.ontimeout = timeout;
|
||||
request.responseType = 'blob';
|
||||
request.timeout = TIMEOUT;
|
||||
request.open('GET', url, true);
|
||||
request.send();
|
||||
|
||||
var placeholder;
|
||||
if(domtoimage.impl.options.imagePlaceholder) {
|
||||
var split = domtoimage.impl.options.imagePlaceholder.split(/,/);
|
||||
if(split && split[1]) {
|
||||
placeholder = split[1];
|
||||
}
|
||||
}
|
||||
|
||||
function done() {
|
||||
if (request.readyState !== 4) return;
|
||||
|
||||
if (request.status !== 200) {
|
||||
if(placeholder) {
|
||||
resolve(placeholder);
|
||||
} else {
|
||||
fail('cannot fetch resource: ' + url + ', status: ' + request.status);
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
var encoder = new FileReader();
|
||||
encoder.onloadend = function () {
|
||||
var content = encoder.result.split(/,/)[1];
|
||||
resolve(content);
|
||||
};
|
||||
encoder.readAsDataURL(request.response);
|
||||
}
|
||||
|
||||
function timeout() {
|
||||
if(placeholder) {
|
||||
resolve(placeholder);
|
||||
} else {
|
||||
fail('timeout of ' + TIMEOUT + 'ms occured while fetching resource: ' + url);
|
||||
}
|
||||
}
|
||||
|
||||
function fail(message) {
|
||||
console.error(message);
|
||||
resolve('');
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
function dataAsUrl(content, type) {
|
||||
return 'data:' + type + ';base64,' + content;
|
||||
}
|
||||
|
||||
function escape(string) {
|
||||
return string.replace(/([.*+?^${}()|\[\]\/\\])/g, '\\$1');
|
||||
}
|
||||
|
||||
function delay(ms) {
|
||||
return function (arg) {
|
||||
return new Promise(function (resolve) {
|
||||
setTimeout(function () {
|
||||
resolve(arg);
|
||||
}, ms);
|
||||
});
|
||||
};
|
||||
}
|
||||
|
||||
function asArray(arrayLike) {
|
||||
var array = [];
|
||||
var length = arrayLike.length;
|
||||
for (var i = 0; i < length; i++) array.push(arrayLike[i]);
|
||||
return array;
|
||||
}
|
||||
|
||||
function escapeXhtml(string) {
|
||||
return string.replace(/#/g, '%23').replace(/\n/g, '%0A');
|
||||
}
|
||||
|
||||
function width(node) {
|
||||
var leftBorder = px(node, 'border-left-width');
|
||||
var rightBorder = px(node, 'border-right-width');
|
||||
return node.scrollWidth + leftBorder + rightBorder;
|
||||
}
|
||||
|
||||
function height(node) {
|
||||
var topBorder = px(node, 'border-top-width');
|
||||
var bottomBorder = px(node, 'border-bottom-width');
|
||||
return node.scrollHeight + topBorder + bottomBorder;
|
||||
}
|
||||
|
||||
function px(node, styleProperty) {
|
||||
var value = window.getComputedStyle(node).getPropertyValue(styleProperty);
|
||||
return parseFloat(value.replace('px', ''));
|
||||
}
|
||||
}
|
||||
|
||||
function newInliner() {
|
||||
var URL_REGEX = /url\(['"]?([^'"]+?)['"]?\)/g;
|
||||
|
||||
return {
|
||||
inlineAll: inlineAll,
|
||||
shouldProcess: shouldProcess,
|
||||
impl: {
|
||||
readUrls: readUrls,
|
||||
inline: inline
|
||||
}
|
||||
};
|
||||
|
||||
function shouldProcess(string) {
|
||||
return string.search(URL_REGEX) !== -1;
|
||||
}
|
||||
|
||||
function readUrls(string) {
|
||||
var result = [];
|
||||
var match;
|
||||
while ((match = URL_REGEX.exec(string)) !== null) {
|
||||
result.push(match[1]);
|
||||
}
|
||||
return result.filter(function (url) {
|
||||
return !util.isDataUrl(url);
|
||||
});
|
||||
}
|
||||
|
||||
function inline(string, url, baseUrl, get) {
|
||||
return Promise.resolve(url)
|
||||
.then(function (url) {
|
||||
return baseUrl ? util.resolveUrl(url, baseUrl) : url;
|
||||
})
|
||||
.then(get || util.getAndEncode)
|
||||
.then(function (data) {
|
||||
return util.dataAsUrl(data, util.mimeType(url));
|
||||
})
|
||||
.then(function (dataUrl) {
|
||||
return string.replace(urlAsRegex(url), '$1' + dataUrl + '$3');
|
||||
});
|
||||
|
||||
function urlAsRegex(url) {
|
||||
return new RegExp('(url\\([\'"]?)(' + util.escape(url) + ')([\'"]?\\))', 'g');
|
||||
}
|
||||
}
|
||||
|
||||
function inlineAll(string, baseUrl, get) {
|
||||
if (nothingToInline()) return Promise.resolve(string);
|
||||
|
||||
return Promise.resolve(string)
|
||||
.then(readUrls)
|
||||
.then(function (urls) {
|
||||
var done = Promise.resolve(string);
|
||||
urls.forEach(function (url) {
|
||||
done = done.then(function (string) {
|
||||
return inline(string, url, baseUrl, get);
|
||||
});
|
||||
});
|
||||
return done;
|
||||
});
|
||||
|
||||
function nothingToInline() {
|
||||
return !shouldProcess(string);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function newFontFaces() {
|
||||
return {
|
||||
resolveAll: resolveAll,
|
||||
impl: {
|
||||
readAll: readAll
|
||||
}
|
||||
};
|
||||
|
||||
function resolveAll() {
|
||||
return readAll(document)
|
||||
.then(function (webFonts) {
|
||||
return Promise.all(
|
||||
webFonts.map(function (webFont) {
|
||||
return webFont.resolve();
|
||||
})
|
||||
);
|
||||
})
|
||||
.then(function (cssStrings) {
|
||||
return cssStrings.join('\n');
|
||||
});
|
||||
}
|
||||
|
||||
function readAll() {
|
||||
return Promise.resolve(util.asArray(document.styleSheets))
|
||||
.then(getCssRules)
|
||||
.then(selectWebFontRules)
|
||||
.then(function (rules) {
|
||||
return rules.map(newWebFont);
|
||||
});
|
||||
|
||||
function selectWebFontRules(cssRules) {
|
||||
return cssRules
|
||||
.filter(function (rule) {
|
||||
return rule.type === CSSRule.FONT_FACE_RULE;
|
||||
})
|
||||
.filter(function (rule) {
|
||||
return inliner.shouldProcess(rule.style.getPropertyValue('src'));
|
||||
});
|
||||
}
|
||||
|
||||
function getCssRules(styleSheets) {
|
||||
var cssRules = [];
|
||||
styleSheets.forEach(function (sheet) {
|
||||
try {
|
||||
util.asArray(sheet.cssRules || []).forEach(cssRules.push.bind(cssRules));
|
||||
} catch (e) {
|
||||
console.log('Error while reading CSS rules from ' + sheet.href, e.toString());
|
||||
}
|
||||
});
|
||||
return cssRules;
|
||||
}
|
||||
|
||||
function newWebFont(webFontRule) {
|
||||
return {
|
||||
resolve: function resolve() {
|
||||
var baseUrl = (webFontRule.parentStyleSheet || {}).href;
|
||||
return inliner.inlineAll(webFontRule.cssText, baseUrl);
|
||||
},
|
||||
src: function () {
|
||||
return webFontRule.style.getPropertyValue('src');
|
||||
}
|
||||
};
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function newImages() {
|
||||
return {
|
||||
inlineAll: inlineAll,
|
||||
impl: {
|
||||
newImage: newImage
|
||||
}
|
||||
};
|
||||
|
||||
function newImage(element) {
|
||||
return {
|
||||
inline: inline
|
||||
};
|
||||
|
||||
function inline(get) {
|
||||
if (util.isDataUrl(element.src)) return Promise.resolve();
|
||||
|
||||
return Promise.resolve(element.src)
|
||||
.then(get || util.getAndEncode)
|
||||
.then(function (data) {
|
||||
return util.dataAsUrl(data, util.mimeType(element.src));
|
||||
})
|
||||
.then(function (dataUrl) {
|
||||
return new Promise(function (resolve, reject) {
|
||||
element.onload = resolve;
|
||||
element.onerror = reject;
|
||||
element.src = dataUrl;
|
||||
});
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
function inlineAll(node) {
|
||||
if (!(node instanceof Element)) return Promise.resolve(node);
|
||||
|
||||
return inlineBackground(node)
|
||||
.then(function () {
|
||||
if (node instanceof HTMLImageElement)
|
||||
return newImage(node).inline();
|
||||
else
|
||||
return Promise.all(
|
||||
util.asArray(node.childNodes).map(function (child) {
|
||||
return inlineAll(child);
|
||||
})
|
||||
);
|
||||
});
|
||||
|
||||
function inlineBackground(node) {
|
||||
// Fix MathJax issue.
|
||||
if (!node.style) {
|
||||
return Promise.resolve(node);
|
||||
}
|
||||
|
||||
var background = node.style.getPropertyValue('background');
|
||||
|
||||
if (!background) return Promise.resolve(node);
|
||||
|
||||
return inliner.inlineAll(background)
|
||||
.then(function (inlined) {
|
||||
node.style.setProperty(
|
||||
'background',
|
||||
inlined,
|
||||
node.style.getPropertyPriority('background')
|
||||
);
|
||||
})
|
||||
.then(function () {
|
||||
return node;
|
||||
});
|
||||
}
|
||||
}
|
||||
}
|
||||
})(this);
|
@ -815,6 +815,31 @@ QString VUtils::generateExportHtmlTemplate(const QString &p_renderBg, bool p_inc
|
||||
return templ;
|
||||
}
|
||||
|
||||
QString VUtils::generateMathJaxPreviewTemplate()
|
||||
{
|
||||
QString templ = VNote::generateMathJaxPreviewTemplate();
|
||||
QString mj = g_config->getMathjaxJavascript();
|
||||
// Chante MathJax to be rendered as SVG.
|
||||
QRegExp reg("(Mathjax\\.js\\?config=)\\S+", Qt::CaseInsensitive);
|
||||
// mj.replace(reg, QString("\\1%1").arg("TeX-MML-AM_SVG"));
|
||||
|
||||
templ.replace(HtmlHolder::c_JSHolder, mj);
|
||||
|
||||
QString extraFile;
|
||||
extraFile += "<script type=\"text/x-mathjax-config\">"
|
||||
"MathJax.Hub.Config({\n"
|
||||
" tex2jax: {inlineMath: [['$','$'], ['\\\\(','\\\\)']],\n"
|
||||
"processEscapes: true,\n"
|
||||
"processClass: \"tex2jax_process|language-mathjax|lang-mathjax\"},\n"
|
||||
" showProcessingMessages: false,\n"
|
||||
" messageStyle: \"none\"});\n"
|
||||
"</script>\n";
|
||||
|
||||
templ.replace(HtmlHolder::c_extraHolder, extraFile);
|
||||
|
||||
return templ;
|
||||
}
|
||||
|
||||
QString VUtils::getFileNameWithSequence(const QString &p_directory,
|
||||
const QString &p_baseFileName,
|
||||
bool p_completeBaseName)
|
||||
|
@ -186,6 +186,9 @@ public:
|
||||
|
||||
static QString generateSimpleHtmlTemplate(const QString &p_body);
|
||||
|
||||
// Generate template for MathJax preview.
|
||||
static QString generateMathJaxPreviewTemplate();
|
||||
|
||||
// Get an available file name in @p_directory with base @p_baseFileName.
|
||||
// If there already exists a file named @p_baseFileName, try to add sequence
|
||||
// suffix to the name, such as _001.
|
||||
|
@ -36,6 +36,9 @@ static const int c_tabSequenceBase = 1;
|
||||
namespace HtmlHolder
|
||||
{
|
||||
static const QString c_JSHolder = "JS_PLACE_HOLDER";
|
||||
static const QString c_cssHolder = "CSS_PLACE_HOLDER";
|
||||
static const QString c_codeBlockCssHolder = "HIGHLIGHTJS_CSS_PLACE_HOLDER";
|
||||
static const QString c_globalStyleHolder = "/* BACKGROUND_PLACE_HOLDER */";
|
||||
static const QString c_extraHolder = "<!-- EXTRA_PLACE_HOLDER -->";
|
||||
static const QString c_bodyHolder = "<!-- BODY_PLACE_HOLDER -->";
|
||||
static const QString c_headHolder = "<!-- HEAD_PLACE_HOLDER -->";
|
||||
|
@ -1,5 +1,7 @@
|
||||
#include <QtWidgets>
|
||||
#include "veditarea.h"
|
||||
|
||||
#include <QtWidgets>
|
||||
|
||||
#include "veditwindow.h"
|
||||
#include "vedittab.h"
|
||||
#include "vnote.h"
|
||||
@ -11,6 +13,7 @@
|
||||
#include "vmainwindow.h"
|
||||
#include "vcaptain.h"
|
||||
#include "vfilelist.h"
|
||||
#include "vmathjaxpreviewhelper.h"
|
||||
|
||||
extern VConfigManager *g_config;
|
||||
|
||||
@ -64,6 +67,8 @@ VEditArea::VEditArea(QWidget *parent)
|
||||
timer->start();
|
||||
|
||||
m_autoSave = g_config->getEnableAutoSave();
|
||||
|
||||
m_mathPreviewHelper = new VMathJaxPreviewHelper(this, this);
|
||||
}
|
||||
|
||||
void VEditArea::setupUI()
|
||||
|
@ -20,6 +20,7 @@ class VDirectory;
|
||||
class VFindReplaceDialog;
|
||||
class QLabel;
|
||||
class VVim;
|
||||
class VMathJaxPreviewHelper;
|
||||
|
||||
class VEditArea : public QWidget, public VNavigationMode
|
||||
{
|
||||
@ -86,6 +87,8 @@ public:
|
||||
// Return the rect not containing the tab bar.
|
||||
QRect editAreaRect() const;
|
||||
|
||||
VMathJaxPreviewHelper *getMathJaxPreviewHelper() const;
|
||||
|
||||
signals:
|
||||
// Emit when current window's tab status updated.
|
||||
void tabStatusUpdated(const VEditTabInfo &p_info);
|
||||
@ -224,6 +227,8 @@ private:
|
||||
|
||||
// Whether auto save files.
|
||||
bool m_autoSave;
|
||||
|
||||
VMathJaxPreviewHelper *m_mathPreviewHelper;
|
||||
};
|
||||
|
||||
inline VEditWindow* VEditArea::getWindow(int windowIndex) const
|
||||
@ -242,4 +247,8 @@ inline VFindReplaceDialog *VEditArea::getFindReplaceDialog() const
|
||||
return m_findReplace;
|
||||
}
|
||||
|
||||
inline VMathJaxPreviewHelper *VEditArea::getMathJaxPreviewHelper() const
|
||||
{
|
||||
return m_mathPreviewHelper;
|
||||
}
|
||||
#endif // VEDITAREA_H
|
||||
|
@ -1,6 +1,7 @@
|
||||
#include "vlivepreviewhelper.h"
|
||||
|
||||
#include <QDebug>
|
||||
#include <QByteArray>
|
||||
|
||||
#include "veditor.h"
|
||||
#include "vdocument.h"
|
||||
@ -8,12 +9,18 @@
|
||||
#include "vgraphvizhelper.h"
|
||||
#include "vplantumlhelper.h"
|
||||
#include "vcodeblockhighlighthelper.h"
|
||||
#include "vmainwindow.h"
|
||||
#include "veditarea.h"
|
||||
#include "vmathjaxpreviewhelper.h"
|
||||
|
||||
extern VConfigManager *g_config;
|
||||
|
||||
extern VMainWindow *g_mainWin;
|
||||
|
||||
// Use the highest 4 bits (31-28) to indicate the lang.
|
||||
#define LANG_PREFIX_GRAPHVIZ 0x10000000UL
|
||||
#define LANG_PREFIX_PLANTUML 0x20000000UL
|
||||
#define LANG_PREFIX_MATHJAX 0x30000000UL
|
||||
#define LANG_PREFIX_MASK 0xf0000000UL
|
||||
|
||||
// Use th 27th bit to indicate the preview type.
|
||||
@ -105,6 +112,11 @@ VLivePreviewHelper::VLivePreviewHelper(VEditor *p_editor,
|
||||
m_plantUMLMode = g_config->getPlantUMLMode();
|
||||
m_graphvizEnabled = g_config->getEnableGraphviz();
|
||||
m_mathjaxEnabled = g_config->getEnableMathjax();
|
||||
|
||||
m_mathJaxHelper = g_mainWin->getEditArea()->getMathJaxPreviewHelper();
|
||||
m_mathJaxID = m_mathJaxHelper->registerIdentifier();
|
||||
connect(m_mathJaxHelper, &VMathJaxPreviewHelper::mathjaxPreviewResultReady,
|
||||
this, &VLivePreviewHelper::mathjaxPreviewResultReady);
|
||||
}
|
||||
|
||||
bool VLivePreviewHelper::isPreviewLang(const QString &p_lang) const
|
||||
@ -246,7 +258,8 @@ void VLivePreviewHelper::updateLivePreview()
|
||||
} else {
|
||||
m_document->setPreviewContent(vcb.m_lang, cb.imageData());
|
||||
}
|
||||
} else if (vcb.m_lang != "puml") {
|
||||
} else if (vcb.m_lang != "mathjax") {
|
||||
// No need to live preview MathJax.
|
||||
m_document->previewCodeBlock(m_cbIndex,
|
||||
vcb.m_lang,
|
||||
removeFence(vcb.m_text),
|
||||
@ -365,6 +378,10 @@ void VLivePreviewHelper::processForInplacePreview(int p_idx)
|
||||
vcb.m_lang,
|
||||
removeFence(vcb.m_text),
|
||||
false);
|
||||
} else if (vcb.m_lang == "mathjax") {
|
||||
m_mathJaxHelper->previewMathJax(m_mathJaxID,
|
||||
p_idx,
|
||||
removeFence(vcb.m_text));
|
||||
}
|
||||
}
|
||||
|
||||
@ -373,12 +390,17 @@ void VLivePreviewHelper::updateInplacePreview()
|
||||
QVector<QSharedPointer<VImageToPreview> > images;
|
||||
for (int i = 0; i < m_codeBlocks.size(); ++i) {
|
||||
CodeBlockPreviewInfo &cb = m_codeBlocks[i];
|
||||
if (cb.inplacePreviewReady() && cb.hasImageData()) {
|
||||
Q_ASSERT(!cb.inplacePreview().isNull());
|
||||
if (cb.inplacePreviewReady()) {
|
||||
// Generate the image.
|
||||
cb.inplacePreview()->m_image.loadFromData(cb.imageData().toUtf8(),
|
||||
cb.imageFormat().toLocal8Bit().data());
|
||||
images.append(cb.inplacePreview());
|
||||
if (cb.hasImageData()) {
|
||||
cb.inplacePreview()->m_image.loadFromData(cb.imageData().toUtf8(),
|
||||
cb.imageFormat().toLocal8Bit().data());
|
||||
images.append(cb.inplacePreview());
|
||||
} else if (cb.hasImageDataBa()) {
|
||||
cb.inplacePreview()->m_image.loadFromData(cb.imageDataBa(),
|
||||
cb.imageFormat().toLocal8Bit().data());
|
||||
images.append(cb.inplacePreview());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -387,7 +409,8 @@ void VLivePreviewHelper::updateInplacePreview()
|
||||
// Clear image.
|
||||
for (int i = 0; i < m_codeBlocks.size(); ++i) {
|
||||
CodeBlockPreviewInfo &cb = m_codeBlocks[i];
|
||||
if (cb.inplacePreviewReady() && cb.hasImageData()) {
|
||||
if (cb.inplacePreviewReady()
|
||||
&& (cb.hasImageData() || cb.hasImageDataBa())) {
|
||||
cb.inplacePreview()->m_image = QPixmap();
|
||||
}
|
||||
}
|
||||
@ -407,3 +430,19 @@ void VLivePreviewHelper::webAsyncResultReady(int p_id,
|
||||
cb.updateInplacePreview(m_editor, m_doc);
|
||||
updateInplacePreview();
|
||||
}
|
||||
|
||||
void VLivePreviewHelper::mathjaxPreviewResultReady(int p_identitifer,
|
||||
int p_id,
|
||||
const QString &p_format,
|
||||
const QByteArray &p_data)
|
||||
{
|
||||
if (p_identitifer != m_mathJaxID
|
||||
|| (p_id >= m_codeBlocks.size() || p_data.isEmpty())) {
|
||||
return;
|
||||
}
|
||||
|
||||
CodeBlockPreviewInfo &cb = m_codeBlocks[p_id];
|
||||
cb.setImageDataBa(p_format, p_data);
|
||||
cb.updateInplacePreview(m_editor, m_doc);
|
||||
updateInplacePreview();
|
||||
}
|
||||
|
@ -11,6 +11,7 @@ class VEditor;
|
||||
class VDocument;
|
||||
class VGraphvizHelper;
|
||||
class VPlantUMLHelper;
|
||||
class VMathJaxPreviewHelper;
|
||||
|
||||
class CodeBlockPreviewInfo
|
||||
{
|
||||
@ -57,6 +58,16 @@ public:
|
||||
return m_imgData;
|
||||
}
|
||||
|
||||
bool hasImageDataBa() const
|
||||
{
|
||||
return !m_imgDataBa.isEmpty();
|
||||
}
|
||||
|
||||
const QByteArray &imageDataBa() const
|
||||
{
|
||||
return m_imgDataBa;
|
||||
}
|
||||
|
||||
const QString &imageFormat() const
|
||||
{
|
||||
return m_imgFormat;
|
||||
@ -64,10 +75,20 @@ public:
|
||||
|
||||
void setImageData(const QString &p_format, const QString &p_data)
|
||||
{
|
||||
m_imgDataBa.clear();
|
||||
|
||||
m_imgFormat = p_format;
|
||||
m_imgData = p_data;
|
||||
}
|
||||
|
||||
void setImageDataBa(const QString &p_format, const QByteArray &p_data)
|
||||
{
|
||||
m_imgData.clear();
|
||||
|
||||
m_imgFormat = p_format;
|
||||
m_imgDataBa = p_data;
|
||||
}
|
||||
|
||||
const QSharedPointer<VImageToPreview> inplacePreview() const
|
||||
{
|
||||
return m_inplacePreview;
|
||||
@ -84,6 +105,8 @@ private:
|
||||
|
||||
QString m_imgData;
|
||||
|
||||
QByteArray m_imgDataBa;
|
||||
|
||||
QString m_imgFormat;
|
||||
|
||||
QSharedPointer<VImageToPreview> m_inplacePreview;
|
||||
@ -120,6 +143,11 @@ private slots:
|
||||
|
||||
void localAsyncResultReady(int p_id, const QString &p_format, const QString &p_result);
|
||||
|
||||
void mathjaxPreviewResultReady(int p_identitifer,
|
||||
int p_id,
|
||||
const QString &p_format,
|
||||
const QByteArray &p_data);
|
||||
|
||||
private:
|
||||
|
||||
bool isPreviewLang(const QString &p_lang) const;
|
||||
@ -154,6 +182,11 @@ private:
|
||||
|
||||
VGraphvizHelper *m_graphvizHelper;
|
||||
VPlantUMLHelper *m_plantUMLHelper;
|
||||
|
||||
VMathJaxPreviewHelper *m_mathJaxHelper;
|
||||
|
||||
// Identification for VMathJaxPreviewHelper.
|
||||
int m_mathJaxID;
|
||||
};
|
||||
|
||||
inline bool VLivePreviewHelper::isPreviewEnabled() const
|
||||
|
64
src/vmathjaxpreviewhelper.cpp
Normal file
64
src/vmathjaxpreviewhelper.cpp
Normal file
@ -0,0 +1,64 @@
|
||||
#include "vmathjaxpreviewhelper.h"
|
||||
|
||||
#include <QDebug>
|
||||
#include <QWebEngineView>
|
||||
#include <QWebChannel>
|
||||
|
||||
#include "utils/vutils.h"
|
||||
#include "vmathjaxwebdocument.h"
|
||||
|
||||
VMathJaxPreviewHelper::VMathJaxPreviewHelper(QWidget *p_parentWidget, QObject *p_parent)
|
||||
: QObject(p_parent),
|
||||
m_parentWidget(p_parentWidget),
|
||||
m_initialized(false),
|
||||
m_nextID(0),
|
||||
m_webView(NULL),
|
||||
m_webReady(false)
|
||||
{
|
||||
}
|
||||
|
||||
VMathJaxPreviewHelper::~VMathJaxPreviewHelper()
|
||||
{
|
||||
}
|
||||
|
||||
void VMathJaxPreviewHelper::doInit()
|
||||
{
|
||||
Q_ASSERT(!m_initialized);
|
||||
|
||||
m_webView = new QWebEngineView(m_parentWidget);
|
||||
connect(m_webView, &QWebEngineView::loadFinished,
|
||||
this, [this]() {
|
||||
m_webReady = true;
|
||||
});
|
||||
|
||||
m_webView->hide();
|
||||
m_webView->setFocusPolicy(Qt::NoFocus);
|
||||
|
||||
m_webDoc = new VMathJaxWebDocument(m_webView);
|
||||
connect(m_webDoc, &VMathJaxWebDocument::mathjaxPreviewResultReady,
|
||||
this, [this](int p_identifier, int p_id, const QString &p_format, const QString &p_data) {
|
||||
QByteArray ba = QByteArray::fromBase64(p_data.toUtf8());
|
||||
emit mathjaxPreviewResultReady(p_identifier, p_id, p_format, ba);
|
||||
});
|
||||
|
||||
QWebChannel *channel = new QWebChannel(m_webView);
|
||||
channel->registerObject(QStringLiteral("content"), m_webDoc);
|
||||
m_webView->page()->setWebChannel(channel);
|
||||
|
||||
m_webView->setHtml(VUtils::generateMathJaxPreviewTemplate(), QUrl("qrc:/resources"));
|
||||
|
||||
while (!m_webReady) {
|
||||
VUtils::sleepWait(100);
|
||||
}
|
||||
|
||||
m_initialized = true;
|
||||
}
|
||||
|
||||
void VMathJaxPreviewHelper::previewMathJax(int p_identifier,
|
||||
int p_id,
|
||||
const QString &p_text)
|
||||
{
|
||||
init();
|
||||
|
||||
m_webDoc->previewMathJax(p_identifier, p_id, p_text);
|
||||
}
|
62
src/vmathjaxpreviewhelper.h
Normal file
62
src/vmathjaxpreviewhelper.h
Normal file
@ -0,0 +1,62 @@
|
||||
#ifndef VMATHJAXPREVIEWHELPER_H
|
||||
#define VMATHJAXPREVIEWHELPER_H
|
||||
|
||||
#include <QObject>
|
||||
|
||||
class QWebEngineView;
|
||||
class VMathJaxWebDocument;
|
||||
class QWidget;
|
||||
|
||||
class VMathJaxPreviewHelper : public QObject
|
||||
{
|
||||
Q_OBJECT
|
||||
public:
|
||||
explicit VMathJaxPreviewHelper(QWidget *p_parentWidget, QObject *p_parent = nullptr);
|
||||
|
||||
~VMathJaxPreviewHelper();
|
||||
|
||||
// Get an ID for identification.
|
||||
int registerIdentifier();
|
||||
|
||||
// Preview @p_text and return SVG data asynchronously.
|
||||
// @p_identifier: identifier the caller registered;
|
||||
// @p_id: internal id for each caller;
|
||||
// @p_text: raw text of the MathJax script.
|
||||
void previewMathJax(int p_identifier, int p_id, const QString &p_text);
|
||||
|
||||
signals:
|
||||
void mathjaxPreviewResultReady(int p_identifier,
|
||||
int p_id,
|
||||
const QString &p_format,
|
||||
const QByteArray &p_data);
|
||||
|
||||
private:
|
||||
void init();
|
||||
|
||||
void doInit();
|
||||
|
||||
QWidget *m_parentWidget;
|
||||
|
||||
int m_initialized;
|
||||
|
||||
int m_nextID;
|
||||
|
||||
QWebEngineView *m_webView;
|
||||
|
||||
VMathJaxWebDocument *m_webDoc;
|
||||
|
||||
bool m_webReady;
|
||||
};
|
||||
|
||||
inline int VMathJaxPreviewHelper::registerIdentifier()
|
||||
{
|
||||
return m_nextID++;
|
||||
}
|
||||
|
||||
inline void VMathJaxPreviewHelper::init()
|
||||
{
|
||||
if (!m_initialized) {
|
||||
doInit();
|
||||
}
|
||||
}
|
||||
#endif // VMATHJAXPREVIEWHELPER_H
|
23
src/vmathjaxwebdocument.cpp
Normal file
23
src/vmathjaxwebdocument.cpp
Normal file
@ -0,0 +1,23 @@
|
||||
#include "vmathjaxwebdocument.h"
|
||||
|
||||
#include <QDebug>
|
||||
|
||||
VMathJaxWebDocument::VMathJaxWebDocument(QObject *p_parent)
|
||||
: QObject(p_parent)
|
||||
{
|
||||
}
|
||||
|
||||
void VMathJaxWebDocument::previewMathJax(int p_identifier,
|
||||
int p_id,
|
||||
const QString &p_text)
|
||||
{
|
||||
emit requestPreviewMathJax(p_identifier, p_id, p_text);
|
||||
}
|
||||
|
||||
void VMathJaxWebDocument::mathjaxResultReady(int p_identifier,
|
||||
int p_id,
|
||||
const QString &p_format,
|
||||
const QString &p_data)
|
||||
{
|
||||
emit mathjaxPreviewResultReady(p_identifier, p_id, p_format, p_data);
|
||||
}
|
31
src/vmathjaxwebdocument.h
Normal file
31
src/vmathjaxwebdocument.h
Normal file
@ -0,0 +1,31 @@
|
||||
#ifndef VMATHJAXWEBDOCUMENT_H
|
||||
#define VMATHJAXWEBDOCUMENT_H
|
||||
|
||||
#include <QObject>
|
||||
|
||||
class VMathJaxWebDocument : public QObject
|
||||
{
|
||||
Q_OBJECT
|
||||
public:
|
||||
explicit VMathJaxWebDocument(QObject *p_parent = nullptr);
|
||||
|
||||
void previewMathJax(int p_identifier, int p_id, const QString &p_text);
|
||||
|
||||
public slots:
|
||||
// Will be called in the HTML side
|
||||
|
||||
void mathjaxResultReady(int p_identifier,
|
||||
int p_id,
|
||||
const QString &p_format,
|
||||
const QString &p_data);
|
||||
|
||||
signals:
|
||||
void requestPreviewMathJax(int p_identifier, int p_id, const QString &p_text);
|
||||
|
||||
void mathjaxPreviewResultReady(int p_identifier,
|
||||
int p_id,
|
||||
const QString &p_format,
|
||||
const QString &p_data);
|
||||
};
|
||||
|
||||
#endif // VMATHJAXWEBDOCUMENT_H
|
@ -111,16 +111,12 @@ QString VNote::generateHtmlTemplate(const QString &p_renderBg,
|
||||
cssStyle += "img { max-width: 100% !important; height: auto !important; }\n";
|
||||
}
|
||||
|
||||
const QString styleHolder("/* BACKGROUND_PLACE_HOLDER */");
|
||||
const QString cssHolder("CSS_PLACE_HOLDER");
|
||||
const QString codeBlockCssHolder("HIGHLIGHTJS_CSS_PLACE_HOLDER");
|
||||
|
||||
QString templ = VUtils::readFileFromDisk(c_markdownTemplatePath);
|
||||
g_palette->fillStyle(templ);
|
||||
|
||||
// Must replace the code block holder first.
|
||||
templ.replace(codeBlockCssHolder, p_codeBlockStyleUrl);
|
||||
templ.replace(cssHolder, p_renderStyleUrl);
|
||||
templ.replace(HtmlHolder::c_codeBlockCssHolder, p_codeBlockStyleUrl);
|
||||
templ.replace(HtmlHolder::c_cssHolder, p_renderStyleUrl);
|
||||
|
||||
if (p_isPDF) {
|
||||
// Shoudl not display scrollbar in PDF.
|
||||
@ -143,7 +139,7 @@ QString VNote::generateHtmlTemplate(const QString &p_renderBg,
|
||||
}
|
||||
|
||||
if (!cssStyle.isEmpty()) {
|
||||
templ.replace(styleHolder, cssStyle);
|
||||
templ.replace(HtmlHolder::c_globalStyleHolder, cssStyle);
|
||||
}
|
||||
|
||||
return templ;
|
||||
@ -163,18 +159,25 @@ QString VNote::generateExportHtmlTemplate(const QString &p_renderBg)
|
||||
cssStyle += "img { max-width: 100% !important; height: auto !important; }\n";
|
||||
}
|
||||
|
||||
const QString styleHolder("/* BACKGROUND_PLACE_HOLDER */");
|
||||
|
||||
QString templ = VUtils::readFileFromDisk(c_exportTemplatePath);
|
||||
g_palette->fillStyle(templ);
|
||||
|
||||
if (!cssStyle.isEmpty()) {
|
||||
templ.replace(styleHolder, cssStyle);
|
||||
templ.replace(HtmlHolder::c_globalStyleHolder, cssStyle);
|
||||
}
|
||||
|
||||
return templ;
|
||||
}
|
||||
|
||||
QString VNote::generateMathJaxPreviewTemplate()
|
||||
{
|
||||
const QString c_templatePath(":/resources/mathjax_preview_template.html");
|
||||
QString templ = VUtils::readFileFromDisk(c_templatePath);
|
||||
g_palette->fillStyle(templ);
|
||||
templ.replace(HtmlHolder::c_cssHolder, g_config->getCssStyleUrl());
|
||||
return templ;
|
||||
}
|
||||
|
||||
void VNote::updateTemplate()
|
||||
{
|
||||
QString renderBg = g_config->getRenderBackgroundColor(g_config->getCurRenderBackgroundColor());
|
||||
|
@ -114,6 +114,8 @@ public:
|
||||
// @p_renderBg: background color, empty to not specify given color.
|
||||
static QString generateExportHtmlTemplate(const QString &p_renderBg);
|
||||
|
||||
static QString generateMathJaxPreviewTemplate();
|
||||
|
||||
public slots:
|
||||
void updateTemplate();
|
||||
|
||||
|
@ -210,5 +210,8 @@
|
||||
<file>resources/themes/v_moonlight/radiobutton_checked_disabled.svg</file>
|
||||
<file>resources/themes/v_moonlight/radiobutton_unchecked_disabled.svg</file>
|
||||
<file>resources/icons/universal_entry_tb.svg</file>
|
||||
<file>resources/mathjax_preview.js</file>
|
||||
<file>resources/mathjax_preview_template.html</file>
|
||||
<file>utils/dom-to-image/dom-to-image.js</file>
|
||||
</qresource>
|
||||
</RCC>
|
||||
|
Loading…
x
Reference in New Issue
Block a user