diff options
Diffstat (limited to 'doc/todo/mdwn_preview.mdwn')
| -rw-r--r-- | doc/todo/mdwn_preview.mdwn | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/doc/todo/mdwn_preview.mdwn b/doc/todo/mdwn_preview.mdwn new file mode 100644 index 000000000..c20314c28 --- /dev/null +++ b/doc/todo/mdwn_preview.mdwn @@ -0,0 +1,305 @@ +The [StackOverflow](http://stackoverflow.com/) site uses markdown for markup. +It has a fancy javascript thing for showing a real-time preview of what the user +is editing. It would be nice if ikiwiki could support this, too. The thing they +use on StackOverflow is supposed to be free software, so it should be easy to +add to ikiwiki. + +> See [[wikiwyg]]. Note that I do not have a copy of the code for that, or +> it'd be in ikiwiki already. --[[Joey]] + +>> I just had a brief look at the [[wikiwyg]] page and the link to the plugin was +>> broken. The StackOverflow site uses the [WMD](http://wmd-editor.com/) editor, +>> which seems to be related to the [ShowDown](http://attacklab.net/showdown/) +>> javascript port of Markdown. Interestingly, [WMD source](http://wmd.googlecode.com/) +>> is now available under an MIT license, though it is supposedly undergoing heavy +>> refactoring. It looks like there was previous discussion ( [[todo/Add_showdown_GUI_input__47__edit]] ) +>> about a showdown plugin. Maybe a WMD plugin would be worthwhile. I might +>> look into it if I have time on the weekend. -- [[Will]] + +[[!tag wishlist]] + +>>> Below is a simple plugin/[[patch]] to make use of the WMD editor. + +>>>> Now added to ikiwiki, thanks! --[[Joey]] + +>>> Turns out it isn't hard at all to +>>> get a basic version going (which doesn't handle directives at all, nor does it swtich itself off when you're +>>> editing something other than Markdown source). I've +>>> removed the done tag so this is visible as a patch. -- [[Will]] + +>>>> Hmm, it would be good if it turned off for !mdwn. Although this could +>>>> be difficult for a new page, since there is a dropdown selector to +>>>> choose the markup language then. But it should be doable for editing an +>>>> existing page. + +>>>>> I agree. I'm working on this for for both new pages and existing pages. +>>>>> It shouldn't be hard once I get WMD going through the javascript API. +>>>>> At the moment that is inexplicably failing, and I haven't had time to have a good look at why. +>>>>> I may not get a chance to look at this again for a few weeks. + +>>>> Can I get a license statement (ie, GPL-2+) ffrom you for the plugin? +>>>> --[[Joey]] + +>>>>> Certainly. You're free to use the code I posted below under the GPL-2+ license. You'll note +>>>>> however that I haven't said anything about the WMD code itself. The WMD web page says: + +>>>>>> "I'm refactoring the code, and will be releasing WMD under the MIT license soon. For now you can download the most recent release (wmd-1.0.1.zip) and use it freely." + +>>>>> It might be best to contact <support@attacklab.net> to for an explicit license on that if you want to include it. +>>>>> -- [[Will]] + +> So, I wonder if I should add a copy of the WMD source to ikiwiki, or rely +> on the user or distribution providing it. It does not seem to be packaged +> for Debian yet. Hmm, I also can't find any copyright or license info in +> the zip file. --[[Joey]] + +>> This is a good question. My thought is that it will probably not be packaged any time soon, +>> so you're better off adding it to IkiWiki. I'd contact the author of WMD and ask them. They +>> may have more insight. -- [[Will]] + +Note that the WMD plugin does **not** handle directives. For this reason the normal `preview` button +remains. Some CSS to clean up the display of the live WMD preview would be good. + +> Can you elucidate the CSS comment -- or will it be obvious what you mean +> when I try it? Is it what's needed for the live preview? --[[Joey]] + +>> In the version of the plugin below, a new `div` is added just below the form. WMD +>> populates this div with the HTML it generates from the Markdown source. This is not very +>> pretty at the moment - it appears in the same place as the preview used to, but with no +>> header or anything. Any standard IkiWiki preview will appear below the WMD live preview. +>> I recommend having a look at <http://wmd-editor.com/examples/splitscreen> +>> for what a little CSS could achieve. -- [[Will]] + +> Hmm, now that I've tried it, I notice that it does live preview by +> default, below the edit window. Which is nice, but then if I hit the +> preview button, I get two previews.. which is confusing. (Also, minor, +> but: the live preview is missing the "Page Preview:" header.) --[[Joey]] + +> I wonder how annoying it would be to add some kind of simplistic wikilink +> support to wmd's preview? And/or a wikilink button? While not supporting +> directies is fine, not supporting wikilinks in a wiki seems a bit +> lacking. It may also entice novide users to not use wikilinks and instead +> use the hyperlinks that wmd does support. --[[Joey]] + +> Bug: When I preview, all the text in the edit field seems to be +> converted from mdwn to html. I think that wmd is converting the mdwn +> into html when the form is posted, so it would also save like that. +> I assume that is designed for websites that do not use markdown +> internally. Doesn't it have a setting to leave it as markdown? +>> Found setting, fixed. --[[Joey]] + +>>> As I noted above, I've been working on the non-markdown page issue. +>>> Below is my a new javascript file that I'm using, and below that a patch +>>> to enable it. This patch makes the normal usage prettier - you get +>>> a side panel with the live preview in it. It also adds a new config +>>> option, `wmd_use101api`, which turns on code that tries to use the +>>> wmd api. At the moment this code doesn't seem to work - moreover the +>>> code that uses the new API dies early, so any code after that point is +>>> completely untested. I will not +>>> get a chance to look at this again soon though, so I thought I'd post +>>> my progress so far. -- [[Will]] + + +Place the following file in `underlays/wmd/wmd-ikiwiki.js`. + +---- + + // This is some code to interface the WMD interface 1.0.1 with IkiWiki + // The WMD interface is planned to change, so this file will likely need + // updating in future. + + if (useWMDinterface) { + wmd_options = { autostart: false, output: "Markdown" }; + var instance = null; + + hook("onload", initwmd); + } else { + var typeSelector = document.getElementById("type"); + + var currentType = getType(typeSelector); + + if (currentType == "mdwn") { + wmd_options = { output: "Markdown" }; + document.getElementById("wmd-preview-container").style.display = 'none'; + } else { + wmd_options = { autostart: false }; + document.getElementById("wmd-preview-container").style.display = 'block'; + } + } + + function initwmd() { + if (!Attacklab || !Attacklab.wmd) { + alert("WMD hasn't finished loading!"); + return; + } + + var typeSelector = document.getElementById("type"); + + var currentType = getType(typeSelector); + + if (currentType == "mdwn") { + window.setTimeout(enableWMD,10); + } + + typeSelector.onchange=function() { + var docType=getType(this); + + if (docType=="mdwn") { + enableWMD(); + } else { + disableWMD(); + } + } + } + + function getType(typeSelector) + { + if (typeSelector.nodeName.toLowerCase() == 'input') { + return typeSelector.getAttribute('value'); + } else if (typeSelector.nodeName.toLowerCase() == 'select') { + return typeSelector.value; + // return typeSelector.options[typeSelector.selectedIndex].innerText; + } + return ""; + } + + function enableWMD() + { + var editContent = document.getElementById("editcontent"); + var previewDiv = document.getElementById("wmd-preview"); + var previewDivContainer = document.getElementById("wmd-preview-container"); + + previewDivContainer.style.display = 'block'; + // editContent.style.width = previewDivContainer.style.width; + + /***** build the preview manager *****/ + var panes = {input:editContent, preview:previewDiv, output:null}; + var previewManager = new Attacklab.wmd.previewManager(panes); + + /***** build the editor and tell it to refresh the preview after commands *****/ + var editor = new Attacklab.wmd.editor(editContent,previewManager.refresh); + + // save everything so we can destroy it all later + instance = {ta:editContent, div:previewDiv, ed:editor, pm:previewManager}; + } + + function disableWMD() + { + document.getElementById("wmd-preview-container").style.display = 'none'; + + if (instance != null) { + instance.pm.destroy(); + instance.ed.destroy(); + // inst.ta.style.width='100%' + } + instance = null; + } + + +---- + + diff --git a/IkiWiki/Plugin/wmd.pm b/IkiWiki/Plugin/wmd.pm + index 9ddd237..743a0b8 100644 + --- a/IkiWiki/Plugin/wmd.pm + +++ b/IkiWiki/Plugin/wmd.pm + @@ -17,6 +17,13 @@ sub getsetup () { + return + plugin => { + safe => 1, + + rebuild => 1, + + }, + + wmd_use101api => { + + type => "boolean", + + description => "Use the advanced, but unstable, WMD api for markdown preview.", + + safe => 0, + + rebuild => 0, + }, + } + + @@ -24,29 +31,25 @@ sub formbuilder_setup (@) { + my %params=@_; + my $form=$params{form}; + + - return if ! defined $form->field("do"); + + return unless defined $form->field("do"); + + return unless $form->field("do") eq "edit" || + - $form->field("do") eq "create" || + - $form->field("do") eq "comment"; + - + - $form->tmpl_param("wmd_preview", "<div class=\"wmd-preview\"></div>\n". + - include_javascript(undef, 1)); + -} + - + -sub include_javascript ($;$) { + - my $page=shift; + - my $absolute=shift; + - + - my $wmdjs=urlto("wmd/wmd.js", $page, $absolute); + - return <<"EOF" + -<script type="text/javascript"> + -wmd_options = { + - output: "Markdown" + -}; + -</script> + -<script src="$wmdjs" type="text/javascript"></script> + -EOF + + $form->field("do") eq "create" || + + $form->field("do") eq "comment"; + + + + my $useAPI = $config{wmd_use101api}?'true':'false'; + + my $ikiwikijs = urlto("ikiwiki.js", undef, 1); + + my $wmdIkiwikijs = urlto("wmd-ikiwiki.js", undef, 1); + + my $wmdjs = urlto("wmd.js", undef, 1); + + + + my $previewScripts = <<"EOS"; + + <script type="text/javascript">useWMDinterface=$useAPI;</script> + + <script src="$ikiwikijs" type="text/javascript"></script> + + <script src="$wmdIkiwikijs" type="text/javascript"></script> + + <script src="$wmdjs" type="text/javascript"></script> + +EOS + + + + $form->tmpl_param("wmd_preview", $previewScripts); + } + + 1 + diff --git a/doc/style.css b/doc/style.css + index a6e6734..36c2b13 + --- a/doc/style.css + +++ b/doc/style.css + @@ -76,9 +76,16 @@ div.tags { + float: right; + } + + +/* + #editcontent { + width: 100%; + } + +*/ + + + +#wmd-preview-container { + + width: 49%; + + float: right; + +} + + img { + border-style: none; + diff --git a/templates/editpage.tmpl b/templates/editpage.tmpl + index b1cf015..1d2f080 100644 + --- a/templates/editpage.tmpl + +++ b/templates/editpage.tmpl + @@ -15,6 +15,14 @@ Page type: <TMPL_VAR FIELD-TYPE> + <TMPL_VAR FIELD-PAGE> + <TMPL_VAR FIELD-TYPE> + </TMPL_IF> + +<TMPL_IF NAME="WMD_PREVIEW"> + +<div id="wmd-preview-container"> + +<div class="header"> + +<span>Live preview:</span> + +</div> + +<div class="wmd-preview" id="wmd-preview"></div> + +</div> + +</TMPL_IF> + <TMPL_VAR FIELD-EDITCONTENT><br /> + <TMPL_IF NAME="CAN_COMMIT"> + Optional comment about this change:<br /> |