first commit

lib/tiny_mce/custom_plugins/stickytoolbar/plugin.js

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+/**
+ * Adapted from https://github.com/kurtnovack/stickytoolbar
+ */
+tinymce.PluginManager.add('stickytoolbar', function(editor, url) {
+   var offset = editor.settings.sticky_offset ? editor.settings.sticky_offset : 0;
+
+   editor.on('init', function() {
+      editor.setSticky();
+   });
+
+   $(window).on('scroll', function() {
+      editor.setSticky();
+   });
+
+   editor.setSticky = function () {
+      offset = editor.settings.sticky_offset ? editor.settings.sticky_offset : 0;
+      var container = editor.editorContainer;
+      var toolbars = $(container).find('.mce-toolbar-grp');
+      var statusbar = $(container).find('.mce-statusbar');
+
+      if (editor.isSticky()) {
+         $(container).css({
+            paddingTop: toolbars.outerHeight()
+         });
+
+         if (editor.isAtBottom()) {
+            toolbars.css({
+               top: 'auto',
+               bottom: statusbar.outerHeight(),
+               position: 'absolute',
+               width: '100%',
+               borderBottom: 'none'
+            });
+         } else {
+            toolbars.css({
+               top: offset,
+               bottom: 'auto',
+               position: 'fixed',
+               width: $(container).width(),
+               borderBottom: '1px solid rgba(0,0,0,0.2)'
+            });
+         }
+      } else {
+         $(container).css({
+            paddingTop: 0
+         });
+
+         toolbars.css({
+            top: 0,
+            position: 'relative',
+            width: 'auto',
+            borderBottom: 'none'
+         });
+      }
+   };
+
+   editor.isSticky = function () {
+      var container = editor.editorContainer,
+          editorTop = container.getBoundingClientRect().top;
+
+      if (editorTop < offset) {
+         return true;
+      }
+
+      return false;
+   };
+
+   editor.isAtBottom = function () {
+      const container = editor.getContainer();
+
+      const editorPosition = container.getBoundingClientRect().top,
+            statusbar = container.querySelector('.mce-statusbar'),
+            topPart = container.querySelector('.mce-top-part');
+
+      const statusbarHeight = statusbar ? statusbar.offsetHeight : 0,
+            topPartHeight = topPart ? topPart.offsetHeight : 0;
+
+      const stickyHeight = -(container.offsetHeight - topPartHeight - statusbarHeight);
+
+      if (editorPosition < stickyHeight + offset) {
+         return true;
+      }
+
+      return false;
+   };
+});

lib/tiny_mce/custom_plugins/stickytoolbar/plugin.min.js

@@ -0,0 +1 @@
+tinymce.PluginManager.add("stickytoolbar",(function(t,o){var e=t.settings.sticky_offset?t.settings.sticky_offset:0;t.on("init",(function(){t.setSticky()}));$(window).on("scroll",(function(){t.setSticky()}));t.setSticky=function(){e=t.settings.sticky_offset?t.settings.sticky_offset:0;var o=t.editorContainer;var i=$(o).find(".mce-toolbar-grp");var s=$(o).find(".mce-statusbar");if(t.isSticky()){$(o).css({paddingTop:i.outerHeight()});if(t.isAtBottom()){i.css({top:"auto",bottom:s.outerHeight(),position:"absolute",width:"100%",borderBottom:"none"})}else{i.css({top:e,bottom:"auto",position:"fixed",width:$(o).width(),borderBottom:"1px solid rgba(0,0,0,0.2)"})}}else{$(o).css({paddingTop:0});i.css({top:0,position:"relative",width:"auto",borderBottom:"none"})}};t.isSticky=function(){var o=t.editorContainer,i=o.getBoundingClientRect().top;if(i<e){return true}return false};t.isAtBottom=function(){const o=t.getContainer();const i=o.getBoundingClientRect().top,s=o.querySelector(".mce-statusbar"),n=o.querySelector(".mce-top-part");const r=s?s.offsetHeight:0,c=n?n.offsetHeight:0;const f=-(o.offsetHeight-c-r);if(i<f+e){return true}return false}}));