add block toolbar to create a code section

[chloro.git] / chloro / phyll / static / js / chloro.js

diff --git a/chloro/phyll/static/js/chloro.js b/chloro/phyll/static/js/chloro.js
index c997bc792f12b6da36a579b5380ffdebc6042eac..4030c7c600ab6a1c87bb2103621972a2c01b3133 100644 (file)
--- a/chloro/phyll/static/js/chloro.js
+++ b/chloro/phyll/static/js/chloro.js
@@ -4,6 +4,7 @@ $(function() {
       var sel = document.getSelection();
       var anchorNode = sel.anchorNode;
       var prev_p = sel.anchorNode.previousSibling;
+      if (! prev_p) return;
       if (prev_p.tagName != 'P') {
         prev_p = $(prev_p).parents('p')[0];
       }
@@ -17,6 +18,16 @@ $(function() {
     }
     return true;
   });
+  $('div[contenteditable]').on('keyup', function(event) {
+    var sel = document.getSelection();
+    if (sel.anchorNode instanceof Element && sel.anchorOffset == 0 && sel.isCollapsed) {
+      // start of line
+      show_block_style_popup();
+    } else {
+      hide_block_style_popup();
+    }
+    return true;
+  });
 
   $('#save').on('click', function() {
     var text = $('div[contenteditable]')[0].innerHTML;
@@ -29,6 +40,48 @@ $(function() {
     return false;
   });
 
+  var block_style_popup = null;
+  function block_style() {
+    var action = $(this).data('action');
+    var class_name = null;
+    if (action == 'code') {
+      action = 'pre';
+      class_name = 'screen';
+    }
+    document.execCommand('formatBlock', false, action);
+    var sel = window.getSelection();
+    if (class_name) {
+      $(sel.anchorNode).addClass(class_name);
+    }
+    var range = document.createRange();
+    range.setStart(sel.anchorNode, 0);
+    sel.removeAllRanges();
+    sel.addRange(range);
+    hide_block_style_popup();
+  }
+  function show_block_style_popup() {
+    if (block_style_popup === null) {
+      block_style_popup = $(
+                      '<div class="style-popup">' +
+                      '<button data-action="code">code</button>' +
+                      '</div>');
+      block_style_popup.hide();
+      block_style_popup.insertAfter($('.actions'));
+      block_style_popup.find('button').on('click', block_style);
+    }
+    block_style_popup.css('position', 'absolute');
+    var sel = window.getSelection();
+    var pos = $(sel.anchorNode).offset();
+    block_style_popup.css('top', pos.top - 33);
+    block_style_popup.css('left', pos.left);
+    block_style_popup.show();
+  }
+  function hide_block_style_popup() {
+    if (block_style_popup) {
+      $(block_style_popup).hide();
+    }
+  }
+
   var style_popup = null;
   function update_style() {
     var action = $(this).data('action');
@@ -81,7 +134,7 @@ $(function() {
 
   function show_style_popup(sel) {
     if (style_popup === null) {
-      style_popup = $('<div id="style-popup">' +
+      style_popup = $('<div class="style-popup short">' +
                       '<button data-action="italic"><i>i</i></button>' +
                       '<button data-action="bold"><b>b</b></button>' +
                       '<button data-action="code">#</button>' +