add extensions

_extensions/quarto-ext/latex-environment/_extension.yml

@@ -0,0 +1,9 @@
+title: LaTeX Environment
+author: RStudio, PBC
+version: 1.1.0
+quarto-required: ">=1.2.198"
+contributes:
+  filters:
+    - latex-environment.lua
+  format:
+    pdf: default

_extensions/quarto-ext/latex-environment/latex-environment.lua

@@ -0,0 +1,133 @@
+-- environment.lua
+-- Copyright (C) 2020 by RStudio, PBC
+
+local classEnvironments = pandoc.MetaMap({})
+local classCommands = pandoc.MetaMap({})
+
+-- helper that identifies arrays
+local function tisarray(t)
+  local i = 0
+  for _ in pairs(t) do
+    i = i + 1
+    if t[i] == nil then return false end
+  end
+  return true
+end
+
+-- reads the environments
+local function readEnvironments(meta)
+  local env = meta['environments']
+  if env ~= nil then
+    if tisarray(env) then
+      -- read an array of strings
+      for i, v in ipairs(env) do
+        local value = pandoc.utils.stringify(v)
+        classEnvironments[value] = value
+      end
+    else
+      -- read key value pairs
+      for k, v in pairs(env) do
+        local key = pandoc.utils.stringify(k)
+        local value = pandoc.utils.stringify(v)
+        classEnvironments[key] = value
+      end
+    end
+  end
+end
+
+local function readCommands(meta)
+  local env = meta['commands']
+  if env ~= nil then
+    if tisarray(env) then
+      -- read an array of strings
+      for i, v in ipairs(env) do
+        local value = pandoc.utils.stringify(v)
+        classCommands[value] = value
+      end
+    else
+      -- read key value pairs
+      for k, v in pairs(env) do
+        local key = pandoc.utils.stringify(k)
+        local value = pandoc.utils.stringify(v)
+        classCommands[key] = value
+      end
+    end
+  end
+end
+
+local function readEnvsAndCommands(meta)
+  readEnvironments(meta)
+  readCommands(meta)
+end
+
+-- use the environments from metadata to
+-- emit a custom environment for latex
+local function writeEnvironments(divEl)
+  if quarto.doc.is_format("latex") then
+    for k, v in pairs(classEnvironments) do
+      if divEl.attr.classes:includes(k) then
+        -- process this into a latex environment
+        local beginEnv = '\\begin' .. '{' .. v .. '}'
+        local endEnv = '\n\\end{' .. v .. '}'
+        
+        -- check if custom options or arguments are present
+        -- and add them to the environment accordingly
+        local opts = divEl.attr.attributes['options']
+        if opts then
+          beginEnv = beginEnv .. '[' .. opts .. ']'
+        end
+
+        local args = divEl.attr.attributes['arguments']
+        if args then
+          beginEnv = beginEnv .. '{' .. args .. '}'
+        end
+        
+        -- if the first and last div blocks are paragraphs then we can
+        -- bring the environment begin/end closer to the content
+        if divEl.content[1].t == "Para" and divEl.content[#divEl.content].t == "Para" then
+          table.insert(divEl.content[1].content, 1, pandoc.RawInline('tex', beginEnv .. "\n"))
+          table.insert(divEl.content[#divEl.content].content, pandoc.RawInline('tex', "\n" .. endEnv))
+        else
+          table.insert(divEl.content, 1, pandoc.RawBlock('tex', beginEnv))
+          table.insert(divEl.content, pandoc.RawBlock('tex', endEnv))
+        end
+        return divEl
+      end
+    end
+  end
+end
+
+-- use the environments from metadata to
+-- emit a custom environment for latex
+local function writeCommands(spanEl)
+  if quarto.doc.is_format("latex") then
+    for k, v in pairs(classCommands) do
+      if spanEl.attr.classes:includes(k) then
+
+        -- resolve the begin command
+        local beginCommand = pandoc.RawInline('latex', '\\' .. pandoc.utils.stringify(v) .. '{')
+        local opts = spanEl.attr.attributes['options']
+        if opts then
+          beginCommand = pandoc.RawInline('latex', '\\' .. pandoc.utils.stringify(v) .. '[' .. opts .. ']{')
+        end
+
+        -- the end command
+        local endCommand = pandoc.RawInline('latex', '}')
+
+        -- attach the raw inlines to the span contents
+        local result = spanEl.content
+        table.insert(result, 1, beginCommand)
+        table.insert(result, endCommand)
+
+        return result
+      end
+    end
+  end
+end
+
+-- Run in two passes so we process metadata
+-- and then process the divs
+return {
+  { Meta = readEnvsAndCommands },
+  { Div = writeEnvironments, Span = writeCommands }
+}

_extensions/quarto-ext/pointer/_extension.yml

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+title: Pointer
+author: Posit Software, PBC
+version: 0.1.0
+quarto-required: ">=1.2.198"
+contributes:
+  revealjs-plugins:
+    - name: RevealPointer
+      script: pointer.js
+      stylesheet: pointer.css
+      config:
+        pointer:
+          key: "q"
+          color: "red"
+          pointerSize: 16
+          alwaysVisible: false

_extensions/quarto-ext/pointer/pointer.css

@@ -0,0 +1 @@
+.cursor-dot,.cursor-dot-outline{pointer-events:none;position:absolute;top:0;left:0;border-radius:50%;opacity:0;transform:translate(-50%,-50%);transition:opacity 0.3s ease-in-out,transform 0.3s ease-in-out;}.cursor-dot{width:12px;height:12px;background-color:red;z-index:99;}.no-cursor{cursor:none;}.no-cursor a,.no-cursor div,.no-cursor span{cursor:none;}

_extensions/quarto-ext/pointer/pointer.js

@@ -0,0 +1 @@
+var RevealPointer=function(){"use strict";var e={backspace:8,tab:9,enter:13,shift:16,ctrl:17,alt:18,pausebreak:19,capslock:20,esc:27,space:32,pageup:33,pagedown:34,end:35,home:36,leftarrow:37,uparrow:38,rightarrow:39,downarrow:40,insert:45,delete:46,0:48,1:49,2:50,3:51,4:52,5:53,6:54,7:55,8:56,9:57,a:65,b:66,c:67,d:68,e:69,f:70,g:71,h:72,i:73,j:74,k:75,l:76,m:77,n:78,o:79,p:80,q:81,r:82,s:83,t:84,u:85,v:86,w:87,x:88,y:89,z:90,leftwindowkey:91,rightwindowkey:92,selectkey:93,numpad0:96,numpad1:97,numpad2:98,numpad3:99,numpad4:100,numpad5:101,numpad6:102,numpad7:103,numpad8:104,numpad9:105,multiply:106,add:107,subtract:109,decimalpoint:110,divide:111,f1:112,f2:113,f3:114,f4:115,f5:116,f6:117,f7:118,f8:119,f9:120,f10:121,f11:122,f12:123,numlock:144,scrolllock:145,semicolon:186,equalsign:187,comma:188,dash:189,period:190,forwardslash:191,graveaccent:192,openbracket:219,backslash:220,closebracket:221,singlequote:222};return function(){var t={},o=!1,a=null,n={x:0,y:0,isVisible:!1},i={x:0,y:0,scale:1};function l(o){var a;null==(t=o.pointer||{}).key?t.key="q":t.key=t.key.toLowerCase(),null!=t.pointerSize&&"number"==typeof t.pointerSize||(t.pointerSize=12),null!=t.tailLength&&"number"==typeof t.tailLength||(t.tailLength=10),null!=t.color&&"string"==typeof t.color||(t.color="red"),null!=t.alwaysVisible&&"boolean"==typeof t.alwaysVisible||(t.alwaysVisible=!1),t.keyCode=(a=t.key,e[a])}function s(){a.style.top="".concat((n.y-i.y)/i.scale,"px"),a.style.left="".concat((n.x-i.x)/i.scale,"px"),n.isVisible?a.style.opacity="0.8":a.style.opacity="0",1!==i.scale?(a.style.width="".concat(t.pointerSize/i.scale,"px"),a.style.height="".concat(t.pointerSize/i.scale,"px")):(a.style.width="".concat(t.pointerSize,"px"),a.style.height="".concat(t.pointerSize,"px"))}function c(e){n.x=e.pageX,n.y=e.pageY;var t=document.body.style.transform;""!==t?(i.x=Number.parseInt(/translate\((.*)px,/gm.exec(t)[1]),i.y=Number.parseInt(/px,\s(.*)px\)/gm.exec(t)[1]),i.scale=Number.parseFloat(/scale\((.)\)/gm.exec(t)[1])):(i.x=0,i.y=0,i.scale=1),requestAnimationFrame(s)}function r(){(o=!o)?(document.addEventListener("mousemove",c),document.body.classList.add("no-cursor"),n.isVisible=!0):(document.removeEventListener("mousemove",c),document.body.classList.remove("no-cursor"),n.isVisible=!1,requestAnimationFrame(s))}return{id:"pointer",init:function(e){var o;l(e.getConfig()),t.alwaysVisible?r():e.addKeyBinding({keyCode:t.keyCode,key:t.key},(function(){r()})),(o=document.createElement("div")).className="cursor-dot",o.style.width="".concat(t.pointerSize,"px"),o.style.height="".concat(t.pointerSize,"px"),o.style.backgroundColor=t.color,t.alwaysVisible&&(o.style.opacity="0.8"),document.body.appendChild(o),a=o}}}}();