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New partialRendering extension

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This commit is contained in:
benweet 2013-07-26 01:44:12 +01:00
parent ab06427a38
commit 6c9e8317dd
6 changed files with 164 additions and 131 deletions
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19
js/core.js
View File

@ -252,6 +252,25 @@ define([
// Create the converter and the editor
var converter = new Markdown.Converter();
// Create MD sections for extensions
converter.hooks.chain("preConversion", function(text) {
var tmpText = text + "\n\n";
var sectionList = [], offset = 0;
// Look for titles (exclude gfm blocs)
tmpText.replace(/^```.*\n[\s\S]*?\n```|(^.+[ \t]*\n=+[ \t]*\n+|^.+[ \t]*\n-+[ \t]*\n+|^\#{1,6}[ \t]*.+?[ \t]*\#*\n+)/gm, function(match, title, matchOffset) {
if(title && matchOffset > offset) {
// We just found a title which means end of the previous section
// Exclude last \n of the section
sectionList.push(tmpText.substring(offset, matchOffset - 1));
offset = matchOffset;
}
return "";
});
// Last section
sectionList.push(tmpText.substring(offset, text.length));
extensionMgr.onSectionsCreated(sectionList);
return text;
});
editor = new Markdown.Editor(converter);
// Custom insert link dialog
editor.hooks.set("insertLinkDialog", function(callback) {

3
js/extensionMgr.js
View File

@ -147,6 +147,7 @@ define([
// Operations on PageDown
addHook("onEditorConfigure");
addHook("onSectionsCreated");
var onPreviewFinished = createHook("onPreviewFinished");
var onAsyncPreviewCallbackList = getExtensionCallbackList("onAsyncPreview");
@ -162,7 +163,7 @@ define([
$("#preview-contents > .preview-content").each(function() {
html += $(this).html();
});
onPreviewFinished(html);
onPreviewFinished(utils.trim(html));
console.log("Preview time: " + (new Date().getTime() - window.previewStartTime));
}
}

4
js/extensions/mathJax.js
View File

@ -210,7 +210,7 @@ define([
function RestartMJ() {
pending = false;
HUB.cancelTypeset = false; // won't need to do this in the future
HUB.Queue([ "Typeset", HUB, converter.eltList || preview ]);
HUB.Queue([ "Typeset", HUB, preview ]);
HUB.Queue(afterRefreshCallback);
}
@ -235,7 +235,7 @@ define([
// Create a preview refresh hook to handle starting MathJax.
//
mathJax.onEditorConfigure = function(editorObject) {
preview = document.getElementById("wmd-preview");
preview = document.getElementById("preview-contents");
converter = editorObject.getConverter();
converter.hooks.chain("preConversion", removeMath);

187
js/extensions/partialRendering.js
View File

@ -9,14 +9,27 @@ define([
partialRendering.settingsBlock = partialRenderingSettingsBlockHTML;
var converter = undefined;
var sectionIdGenerator = 0;
var sectionList = [
{
text: ""
var sectionCounter = 0;
var sectionList = [];
var linkDefinition = "";
var sectionsToRemove = [];
var modifiedSections = [];
var insertAfterSection = undefined;
var fileChanged = true;
function updateSectionList(newSectionList, newLinkDefinition) {
modifiedSections = [];
sectionsToRemove = [];
insertAfterSection = undefined;
// Render everything if file changed or linkDefinition changed
if(fileChanged === true || linkDefinition != newLinkDefinition) {
fileChanged = false;
linkDefinition = newLinkDefinition;
sectionsToRemove = sectionList;
sectionList = newSectionList;
modifiedSections = newSectionList;
return;
}
];
var sectionsToRemove = undefined;
function updateSectionList(newSectionList) {
// Find modified sections starting from left
var leftIndex = sectionList.length;
@ -44,134 +57,140 @@ define([
// Create an array composed of left unmodified, modified, right
// unmodified sections
var leftSections = sectionList.slice(0, leftIndex);
var modifiedSections = newSectionList.slice(leftIndex, newSectionList.length + rightIndex);
modifiedSections = newSectionList.slice(leftIndex, newSectionList.length + rightIndex);
var rightSections = sectionList.slice(sectionList.length + rightIndex, sectionList.length);
insertAfterSection = _.last(leftSections);
sectionsToRemove = sectionList.slice(leftIndex, sectionList.length + rightIndex);
sectionList = leftSections.concat(modifiedSections).concat(rightSections);
}
var doFootnotes = false;
var hasFootnotes = false;
function extractSections(text) {
partialRendering.onSectionsCreated = function(sectionListParam) {
var newSectionList = [];
var newLinkDefinition = "";
hasFootnotes = false;
_.each(sectionListParam, function(text) {
text += "\n\n";
// Strip link definitions
var linkDefinition = "";
text = text.replace(/^[ ]{0,3}\[(.+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?(?=\s|$)[ \t]*\n?[ \t]*((\n*)["(](.+?)[")][ \t]*)?(?:\n+)/gm, function(wholeMatch) {
linkDefinition += wholeMatch;
text = text.replace(/^```.*\n[\s\S]*?\n```|^[ ]{0,3}\[(.+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?(?=\s|$)[ \t]*\n?[ \t]*((\n*)["(](.+?)[")][ \t]*)?(?:\n+)/gm, function(wholeMatch, link) {
if(link) {
newLinkDefinition += wholeMatch;
return "";
}
return wholeMatch;
});
// And eventually footnotes...
hasFootnotes = false;
var doFootnotes = _.some(converter.extraExtensions, function(extension) {
return extension == "footnotes";
});
if(doFootnotes) {
text = text.replace(/\n[ ]{0,3}\[\^(.+?)\]\:[ \t]*\n?([\s\S]*?)\n{1,2}((?=\n[ ]{0,3}\S)|$)/g, function(wholeMatch) {
text = text.replace(/^```.*\n[\s\S]*?\n```|\n[ ]{0,3}\[\^(.+?)\]\:[ \t]*\n?([\s\S]*?)\n{1,2}((?=\n[ ]{0,3}\S)|$)/g, function(wholeMatch, footnote) {
if(footnote) {
hasFootnotes = true;
linkDefinition += wholeMatch;
newLinkDefinition += wholeMatch;
return "";
}
return wholeMatch;
});
}
// Look for titles
var newSectionList = [];
var offset = 0;
text.replace(/^```.*\n[\s\S]*?\n```|(^.+[ \t]*\n=+[ \t]*\n+|^.+[ \t]*\n-+[ \t]*\n+|^\#{1,6}[ \t]*.+?[ \t]*\#*\n+)/gm, function(match, title, matchOffset) {
if(title) {
// We just found a title which means end of the previous section
if(matchOffset > offset) {
// Skip space only sections
if(/\S/.test(text)) {
// Add section to the newSectionList
newSectionList.push({
id: ++sectionIdGenerator,
text: text.substring(offset, matchOffset) + "\n" + linkDefinition
id: ++sectionCounter,
text: text
});
offset = matchOffset;
}
}
return "";
});
// Last section
newSectionList.push({
id: ++sectionIdGenerator,
text: text.substring(offset, text.length) + linkDefinition
});
updateSectionList(newSectionList);
}
updateSectionList(newSectionList, newLinkDefinition);
};
var footnoteContainerElt = $('<div id="wmd-preview-section-footnotes" class="preview-content">');
var footnoteList = {};
function refreshSections() {
var isRendering = false;
var footnoteContainer = $('<div>');
var footnoteContainerFirstChild = $('<div>').appendTo(footnoteContainer);
function renderSections() {
converter.eltList = [];
// Remove outdated sections
_.each(sectionsToRemove, function(section) {
$("#wmd-preview-section-" + section.id).remove();
footnoteContainer.find("#footnotes-section-" + section.id).remove();
});
var footnoteContainerElt = $("#wmd-preview-section-footnotes");
footnoteContainerElt.empty();
// Renders modified sections
isRendering = true;
var previousSectionElt = $("#wmd-preview");
var previousFootnoteElt = footnoteContainerFirstChild;
_.each(sectionList, function(section) {
if(section.isConverted === true) {
previousSectionElt = $("#wmd-preview-section-" + section.id);
footnoteContainer.find("#footnotes-section-" + section.id).each(function() {
previousFootnoteElt = $(this);
});
return;
var wmdPreviewElt = $("#wmd-preview");
var insertAfterSectionElt = insertAfterSection === undefined ? wmdPreviewElt : $("#wmd-preview-section-" + insertAfterSection.id);
_.each(modifiedSections, function(section) {
var sectionElt = $('<div id="wmd-preview-section-' + section.id + '" class="wmd-preview-section preview-content">');
_.some(wmdPreviewElt.children(), function(elt, index) {
elt = $(elt);
if(index !== 0 && elt.is(".wmd-title")) {
return true;
}
var sectionHtml = converter.makeHtml(section.text);
var sectionElt = $('<div id="wmd-preview-section-' + section.id + '" class="preview-content">').html(sectionHtml);
sectionElt.find("div.footnotes").each(function() {
var footnoteElt = $(this).attr("id", "footnotes-section-" + section.id);
previousFootnoteElt.after(footnoteElt);
previousFootnoteElt = footnoteElt;
else if(elt.is("div.footnotes")) {
elt.find("ol > li").each(function() {
var footnoteElt = $(this).clone();
var id = footnoteElt.attr("id").substring(3);
footnoteList[id] = footnoteElt;
});
previousSectionElt.after(sectionElt);
previousSectionElt = sectionElt;
converter.eltList.push(sectionElt[0]);
section.isConverted = true;
elt.remove();
}
else {
sectionElt.append(elt);
}
});
insertAfterSectionElt.after(sectionElt);
insertAfterSectionElt = sectionElt;
});
isRendering = false;
// Rewrite footnotes in the footer
// Rewrite footnotes in the footer and update footnote numbers
footnoteContainerElt.empty();
var usedFootnoteIds = [];
if(hasFootnotes === true) {
// Recreate a footnote list
var footnoteElts = $("<ol>");
footnoteContainer.find("div.footnotes > ol > li").each(function(index) {
hasFootnotes = true;
var elt = $(this);
footnoteElts.append(elt.clone());
// Restore footnotes numbers
var refId = "#fnref\\:" + elt.attr("id").substring(3);
$(refId).text(index + 1);
$("#preview-contents a.footnote").each(function(index) {
var id=$(this).text(index + 1).attr("id").substring(6);
usedFootnoteIds.push(id);
footnoteElts.append(footnoteList[id].clone());
});
if(usedFootnoteIds.length > 0) {
// Append the whole footnotes at the end of the document
footnoteContainerElt.html($('<div class="footnotes">').append("<hr>").append(footnoteElts));
}
// Keep only used footnotes in our map
footnoteList = _.pick(footnoteList, usedFootnoteIds);
}
}
partialRendering.onEditorConfigure = function(editor) {
converter = editor.getConverter();
converter.hooks.chain("preConversion", function(text) {
if(isRendering === true) {
return text;
}
extractSections(text);
return "";
var result = _.map(modifiedSections, function(section) {
return section.text;
});
result.push(linkDefinition + "\n\n");
return result.join("");
});
editor.hooks.chain("onPreviewRefresh", function() {
$("#wmd-preview").html(renderSections());
refreshSections();
});
};
partialRendering.onReady = function() {
$("#preview-contents").append($('<div id="wmd-preview-section-footnotes" class="preview-content">'));
partialRendering.onPreviewFinished = function() {
$('script[type="math/tex; mode=display"]').remove();
};
partialRendering.onReady = function() {
$("#preview-contents").append(footnoteContainerElt);
$("#wmd-preview").hide();
};
partialRendering.onFileClose = function() {
fileChanged = true;
};
partialRendering.onFileOpen = function() {
if(converter.extraExtensions) {
doFootnotes = _.some(converter.extraExtensions, function(extension) {
return extension == "footnotes";
});
}
};
return partialRendering;

30
js/extensions/scrollLink.js
View File

@ -10,6 +10,11 @@ define([
var scrollLink = new Extension("scrollLink", "Scroll Link", true);
scrollLink.settingsBlock = scrollLinkSettingsBlockHTML;
var sectionList = undefined;
scrollLink.onSectionsCreated = function(sectionListParam) {
sectionList = sectionListParam;
};
var mdSectionList = [];
var htmlSectionList = [];
function pxToFloat(px) {
@ -28,7 +33,7 @@ define([
textareaElt.width(editorElt.width());
// Consider wmd-input top padding (will be used for 1st and last section)
var padding = pxToFloat(editorElt.css('padding-top'));
var offset = 0, mdSectionOffset = 0;
var mdSectionOffset = 0;
function addMdSection(sectionText) {
var sectionHeight = padding;
if(sectionText !== undefined) {
@ -44,25 +49,14 @@ define([
mdSectionOffset = newSectionOffset;
padding = 0;
}
// Create MD sections by finding title patterns (excluding gfm blocs)
var text = editorElt.val() + "\n\n";
text.replace(/^```.*\n[\s\S]*?\n```|(^.+[ \t]*\n=+[ \t]*\n+|^.+[ \t]*\n-+[ \t]*\n+|^\#{1,6}[ \t]*.+?[ \t]*\#*\n+)/gm, function(match, title, matchOffset) {
if(title) {
// We just found a title which means end of the previous section
// Exclude last \n of the section
var sectionText = undefined;
if(matchOffset > offset) {
sectionText = text.substring(offset, matchOffset - 1);
}
addMdSection(sectionText);
offset = matchOffset;
}
return "";
});
_.each(sectionList, function(sectionText, index) {
if(index === sectionList.length - 1) {
// Last section
// Consider wmd-input bottom padding and exclude \n\n previously added
padding += pxToFloat(editorElt.css('padding-bottom'));
addMdSection(text.substring(offset, text.length - 2));
}
addMdSection(sectionText);
});
// Try to find corresponding sections in the preview
var previewElt = $(".preview-container");
@ -70,7 +64,7 @@ define([
var htmlSectionOffset = 0;
var previewScrollTop = previewElt.scrollTop();
// Each title element is a section separator
$("#preview-contents > .preview-content").children("h1,h2,h3,h4,h5,h6").each(function() {
$("#preview-contents > .preview-content").children(".wmd-title").each(function() {
// Consider div scroll position and header element top margin
var newSectionOffset = $(this).position().top + previewScrollTop + pxToFloat($(this).css('margin-top'));
htmlSectionList.push({

6
js/libs/Markdown.Converter.js
View File

@ -754,11 +754,11 @@ else
// --------
//
text = text.replace(/^(.+)[ \t]*\n=+[ \t]*\n+/gm,
function (wholeMatch, m1) { return "<h1>" + _RunSpanGamut(m1) + "</h1>\n\n"; }
function (wholeMatch, m1) { return "<h1 class=\"wmd-title\">" + _RunSpanGamut(m1) + "</h1>\n\n"; }
);
text = text.replace(/^(.+)[ \t]*\n-+[ \t]*\n+/gm,
function (matchFound, m1) { return "<h2>" + _RunSpanGamut(m1) + "</h2>\n\n"; }
function (matchFound, m1) { return "<h2 class=\"wmd-title\">" + _RunSpanGamut(m1) + "</h2>\n\n"; }
);
// atx-style headers:
@ -783,7 +783,7 @@ else
text = text.replace(/^(\#{1,6})[ \t]*(.+?)[ \t]*\#*\n+/gm,
function (wholeMatch, m1, m2) {
var h_level = m1.length;
return "<h" + h_level + ">" + _RunSpanGamut(m2) + "</h" + h_level + ">\n\n";
return "<h" + h_level + " class=\"wmd-title\">" + _RunSpanGamut(m2) + "</h" + h_level + ">\n\n";
}
);