From 2c1e1fe13166ea159d6505735e62caa1472c6395 Mon Sep 17 00:00:00 2001 From: benweet Date: Mon, 14 Apr 2014 01:21:06 +0100 Subject: [PATCH] New layout --- public/index.html | 6 +- public/res/core.js | 250 +------------- public/res/editor.js | 11 +- public/res/extensions/comments.js | 2 +- public/res/extensions/documentPanel.js | 20 +- public/res/extensions/documentSelector.js | 2 +- public/res/extensions/scrollLink.js | 4 + public/res/html/bodyIndex.html | 377 +++++++++++----------- public/res/layout.js | 373 +++++++++++++++++++++ public/res/styles/main.less | 176 ++++++---- public/res/utils.js | 7 +- public/viewer.html | 6 +- 12 files changed, 703 insertions(+), 531 deletions(-) create mode 100644 public/res/layout.js diff --git a/public/index.html b/public/index.html index 1749d433..58ba2e3f 100644 --- a/public/index.html +++ b/public/index.html @@ -1,6 +1,6 @@ - + StackEdit – markdown editor @@ -9,7 +9,7 @@ - + @@ -26,7 +26,7 @@ - + diff --git a/public/res/core.js b/public/res/core.js index 83c26f3b..34aa0325 100644 --- a/public/res/core.js +++ b/public/res/core.js @@ -4,6 +4,7 @@ define([ "underscore", "crel", "editor", + "layout", "constants", "utils", "storage", @@ -16,9 +17,8 @@ define([ "text!html/settingsTemplateTooltip.html", "text!html/settingsUserCustomExtensionTooltip.html", "storage", - "uilayout", 'pagedown', -], function($, _, crel, editor, constants, utils, storage, settings, eventMgr, shortcutMgr, mousetrap, bodyIndexHTML, bodyViewerHTML, settingsTemplateTooltipHTML, settingsUserCustomExtensionTooltipHTML) { +], function($, _, crel, editor, layout, constants, utils, storage, settings, eventMgr, shortcutMgr, mousetrap, bodyIndexHTML, bodyViewerHTML, settingsTemplateTooltipHTML, settingsUserCustomExtensionTooltipHTML) { var core = {}; @@ -204,47 +204,7 @@ define([ } } - // Set the panels visibility - var layout; - var $menuPanelElt; - var $documentPanelElt; - function setPanelVisibility(forceHide) { - if(forceHide === true || layout.state.north.isClosed) { - $menuPanelElt.hide(); - $documentPanelElt.hide(); - } - else { - $menuPanelElt.show(); - $documentPanelElt.show(); - } - } - - // Set the preview button visibility - var $previewButtonsElt; - function setPreviewButtonsVisibility(forceHide) { - if(forceHide === true || layout.state.east.isClosed) { - $previewButtonsElt.hide(); - } - else { - $previewButtonsElt.show(); - } - } - // Create the layout - var $editorButtonsElt; - var maxWidthMap = [ - { screenWidth: 0, maxWidth: 600 }, - { screenWidth: 1000, maxWidth: 700 }, - { screenWidth: 1200, maxWidth: 800 }, - { screenWidth: 1400, maxWidth: 900 }, - ]; - var maxWidthMapReversed = maxWidthMap.slice(0).reverse(); - function getMaxWidth() { - var actualWidth = $(window).width(); - return _.find(maxWidthMapReversed, function(value) { - return actualWidth > value.screenWidth; - }).maxWidth; - } function createLayout() { var layoutGlobalConfig = { closable: true, @@ -274,81 +234,19 @@ define([ easing: "easeInOutQuad", duration: 350 }, - onopen: function() { - setPanelVisibility(); - setPreviewButtonsVisibility(); - }, - onclose_start: function(paneName) { - if(paneName == 'north') { - setPanelVisibility(true); - } - else if(paneName == 'east') { - setPreviewButtonsVisibility(true); - } - }, onresize_end: function(paneName) { - if(editor.$contentElt !== undefined && paneName == 'center') { - var padding = ($editorElt.width() - getMaxWidth()) / 2; - if(padding < constants.EDITOR_DEFAULT_PADDING) { - padding = constants.EDITOR_DEFAULT_PADDING; - } - editor.$contentElt.css({ - 'padding-left': padding + 'px', - 'padding-right': padding + 'px' - }); - editor.$marginElt.css({ - 'width': padding + 'px', - }); - } eventMgr.onLayoutResize(paneName); }, }; eventMgr.onLayoutConfigure(layoutGlobalConfig); if(settings.layoutOrientation == "horizontal") { - $(".ui-layout-south").remove(); - $(".preview-container").html('
'); - layout = $('body').layout($.extend(layoutGlobalConfig, { - east__resizable: true, - east__size: 0.5, - east__minSize: 300 - })); } else if(settings.layoutOrientation == "vertical") { - $(".ui-layout-east").remove(); - $(".preview-container").html('
'); - layout = $('body').layout($.extend(layoutGlobalConfig, { - south__resizable: true, - south__size: 0.5, - south__minSize: 200 - })); - } - $(".navbar").click(function() { - layout.allowOverflow('north'); - }); - $(".ui-layout-toggler-south").addClass("btn btn-info").html(''); - $(".ui-layout-toggler-east").addClass("btn btn-info").html(''); - var $northTogglerElt = $(".ui-layout-toggler-north").addClass("btn btn-info").html(''); - - // We attach the preview buttons to the UI layout resizer in order to - // have fixed position - // We also move the north toggler to the east or south resizer as the - // north resizer is very small - // var $previewButtonsContainerElt = $('
'); - var $resizerDecorator = $('
'); - $previewButtonsElt = $('
'); - $editorButtonsElt = $('
'); - if(window.viewerMode || settings.layoutOrientation == "horizontal") { - $('.ui-layout-resizer-north').append($previewButtonsElt); - $('.ui-layout-resizer-east').append($resizerDecorator).append($northTogglerElt).append($editorButtonsElt); - } - else { - $('.ui-layout-resizer-south').append($resizerDecorator).append($previewButtonsElt).append($editorButtonsElt).append($northTogglerElt); } - setPanelVisibility(); - setPreviewButtonsVisibility(); - + //setPanelVisibility(); + //setPreviewButtonsVisibility(); + layout.init(); eventMgr.onLayoutCreated(layout); } @@ -379,7 +277,6 @@ define([ $titleContainer.before($rightBtnElts); } } - layout.resizeAll(); } // Create the PageDown editor @@ -474,50 +371,6 @@ define([ document.body.innerHTML = bodyIndexHTML; } - var styleContent = ''; - - // Apply font - function applyFont(size, screenWidth) { - screenWidth = screenWidth || 0; - //var codeFontSize = settings.editorFontSize; - //var codeLineHeight = Math.round(codeFontSize * 20 / 12); - var previewFontSize = size; // * 13 / 12; - styleContent += [ - '@media (min-width: ' + screenWidth + 'px) {', - '#wmd-input, .textarea-helper {', - ' font-size: ' + size + 'px;', - //' font-family: ' + settings.editorFontFamily + ';', - '}', - '#preview-contents {', - ' font-size: ' + previewFontSize + 'px;', - '}', - '}', - ].join('\n'); - } - applyFont(16); - applyFont(17, 600); - applyFont(18, 1200); - - function applyMaxWidth(maxWidth, screenWidth) { - styleContent += [ - '@media (min-width: ' + screenWidth + 'px) {', - '#preview-contents {', - ' max-width: ' + (maxWidth + 30) + 'px;', - '}', - '}', - ].join('\n'); - } - _.each(maxWidthMap, function(entry) { - applyMaxWidth(entry.maxWidth, entry.screenWidth); - }); - - // Apply dynamic stylesheet - var style = crel('style', { - type : 'text/css' - }); - style.innerHTML = styleContent; - document.head.appendChild(style); - $navbarElt = $('.navbar'); $leftBtnElts = $navbarElt.find('.left-buttons'); $rightBtnElts = $navbarElt.find('.right-buttons'); @@ -546,75 +399,6 @@ define([ // Detect user activity $(document).mousemove(setUserActive).keypress(setUserActive); - // Avoid dropdown to close when clicking on submenu - $(".dropdown-submenu > a").click(function(e) { - e.stopPropagation(); - }); - - $menuPanelElt = $('.menu-panel').collapse({ - toggle: false - }); - var menuPanelBackdropElt; - $menuPanelElt.on('show.bs.collapse', function(e) { - if(e.target === $menuPanelElt[0]) { - isMenuPanelShown = true; - menuPanelBackdropElt = utils.createBackdrop('collapse', '.menu-panel'); - $menuPanelElt.addClass('move-to-front'); - // To avoid opening delay - $.support.transition && setTimeout(function() { - $menuPanelElt.trigger($.support.transition.end); - }, 50); - } - else { - // Close all open sub-menus when one submenu opens - $menuPanelElt.find('.in').collapse('hide'); - } - }).on('hide.bs.collapse', function(e) { - if(e.target === $menuPanelElt[0]) { - isMenuPanelShown = false; - menuPanelBackdropElt.removeBackdrop(); - $menuPanelElt.removeClass('move-to-front'); - editor.focus(); - } - }).on('hidden.bs.collapse', function(e) { - if(e.target === $menuPanelElt[0]) { - // Close all open sub-menus when menu panel is closed - $menuPanelElt.find('.in').collapse('hide'); - } - }); - - $documentPanelElt = $('.document-panel').collapse({ - toggle: false - }); - var documentPanelBackdropElt; - $documentPanelElt.on('show.bs.collapse', function(e) { - if(e.target === $documentPanelElt[0]) { - isDocumentPanelShown = true; - documentPanelBackdropElt = utils.createBackdrop('collapse', '.document-panel'); - $documentPanelElt.addClass('move-to-front'); - // To avoid opening delay - $.support.transition && setTimeout(function() { - $documentPanelElt.trigger($.support.transition.end); - }, 50); - } - else { - // Close all open sub-menus when one submenu opens - $documentPanelElt.find('.in').collapse('hide'); - } - }).on('hide.bs.collapse', function(e) { - if(e.target === $documentPanelElt[0]) { - isDocumentPanelShown = false; - documentPanelBackdropElt.removeBackdrop(); - $documentPanelElt.removeClass('move-to-front'); - editor.focus(); - } - }).on('hidden.bs.collapse', function(e) { - if(e.target === $documentPanelElt[0]) { - // Close all open sub-menus when menu panel is closed - $documentPanelElt.find('.in').collapse('hide'); - } - }); - // Create UI layout createLayout(); @@ -642,18 +426,7 @@ define([ // Other initialization that are not prioritary eventMgr.addListener("onReady", function() { - // In vertical mode, we have to offset the editor buttons otherwise they hide the editor buttons - if(!window.viewerMode && settings.layoutOrientation == "vertical") { - $previewButtonsElt.css('right', parseInt($previewButtonsElt.css('right')) + $editorButtonsElt.width()); - } - - var isModalShown = false; - $('.modal').on('show.bs.modal', function() { - // Close panel if open - $menuPanelElt.collapse('hide'); - $documentPanelElt.collapse('hide'); - isModalShown = true; - }).on('shown.bs.modal', function() { + $('.modal').on('shown.bs.modal', function() { var $elt = $(this); setTimeout(function() { // When modal opens focus on the first button @@ -665,7 +438,6 @@ define([ }, 50); }).on('hidden.bs.modal', function() { // Focus on the editor when modal is gone - isModalShown = false; editor.focus(); // Revert to current theme when settings modal is closed applyTheme(window.theme); @@ -676,16 +448,6 @@ define([ } }); - // Hide menu panel when clicking 'Save as' button - $('.collapse-save-as a').click(function() { - $menuPanelElt.collapse('hide'); - }); - - // Configure Mousetrap - mousetrap.stopCallback = function(e, element) { - return isMenuPanelShown || isDocumentPanelShown || isModalShown || $(element).is("input, select, textarea:not(.ace_text-input)"); - }; - // Click events on "insert link" and "insert image" dialog buttons $(".action-insert-link").click(function(e) { var value = utils.getInputTextValue($("#input-insert-link"), e); diff --git a/public/res/editor.js b/public/res/editor.js index 77ff40d1..11c9fc91 100644 --- a/public/res/editor.js +++ b/public/res/editor.js @@ -578,17 +578,10 @@ define([ $inputElt = $(inputElt); previewElt = previewEltParam; - contentElt = crel('div', { - class: 'editor-content', - contenteditable: true - }); - inputElt.appendChild(contentElt); + contentElt = inputElt.querySelector('.editor-content'); $contentElt = $(contentElt); editor.$contentElt = $contentElt; - marginElt = crel('div', { - class: 'editor-margin' - }); - inputElt.appendChild(marginElt); + marginElt = inputElt.querySelector('.editor-margin'); $marginElt = $(marginElt); editor.$marginElt = $marginElt; diff --git a/public/res/extensions/comments.js b/public/res/extensions/comments.js index 4e86e455..f8a49b68 100644 --- a/public/res/extensions/comments.js +++ b/public/res/extensions/comments.js @@ -100,7 +100,7 @@ define([ } popoverElt.style.left = left + 'px'; popoverElt.querySelector('.arrow').style.left = (marginElt.offsetWidth - parseInt(commentElt.style.right) - commentElt.offsetWidth / 2 - left) + 'px'; - var popoverTopOffset = document.body.offsetHeight - currentContext.hr.getBoundingClientRect().top; + var popoverTopOffset = window.innerHeight - currentContext.hr.getBoundingClientRect().top; if(popoverTopOffset < 0) { popoverElt.style.top = (parseInt(popoverElt.style.top) + popoverTopOffset) + 'px'; } diff --git a/public/res/extensions/documentPanel.js b/public/res/extensions/documentPanel.js index fd7515dd..b55348d5 100644 --- a/public/res/extensions/documentPanel.js +++ b/public/res/extensions/documentPanel.js @@ -19,7 +19,7 @@ define([ ' class="list-group-item folder clearfix"', ' data-folder-index="<%= folderDesc.folderIndex %>"', ' data-toggle="collapse"', - ' data-target=".document-panel .file-list.<%= id %>">', + ' data-target=".file-list.<%= id %>">', '
', ' <%= _.size(folderDesc.fileList) %>', '
', @@ -32,9 +32,7 @@ define([ var documentEltTmpl = [ '"', - ' data-file-index="<%= fileDesc.fileIndex %>"', - ' data-toggle="collapse"', - ' data-target=".document-panel">', + ' data-file-index="<%= fileDesc.fileIndex %>">', ' <%= fileDesc.composeTitle() %>', '', ].join(''); @@ -84,7 +82,7 @@ define([ }); documentListElt.innerHTML = documentListHtml; - + // Create filtered list var documentListFilteredHtml = _.chain(fileSystem).sortBy(function(fileDesc) { return fileDesc.title.toLowerCase(); @@ -97,7 +95,7 @@ define([ documentListFilteredHtml = '
    ' + documentListFilteredHtml + '
'; documentListFilteredElt.innerHTML = documentListFilteredHtml; - + // Add click listeners _.each(panelElt.querySelectorAll('.file'), function(fileElt) { var $fileElt = $(fileElt); @@ -133,7 +131,7 @@ define([ return; } previousFilterValue = filterValue; - + // Scroll to top panelContentElt.scrollTop = 0; @@ -161,7 +159,7 @@ define([ $documentListElt = $(documentListElt); documentListFilteredElt = panelElt.querySelector('.document-list-filtered'); $documentListFilteredElt = $(documentListFilteredElt); - + // Open current folder before opening $(panelElt).on('show.bs.collapse', function(e) { if(e.target === panelElt) { @@ -175,13 +173,13 @@ define([ // Unset the filter $filterInputElt.val(''); filterFiles(''); - + // Scroll to the active file var activeElt = documentListElt.querySelector('.file.active'); activeElt && (panelContentElt.scrollTop += activeElt.getBoundingClientRect().top - 240); } }); - + // Search bar input change var $filterInputElt = $(panelElt.querySelector('.search-bar .form-control')); $filterInputElt.bind("propertychange keyup input paste", function() { @@ -191,4 +189,4 @@ define([ return documentPanel; -}); \ No newline at end of file +}); diff --git a/public/res/extensions/documentSelector.js b/public/res/extensions/documentSelector.js index 36c929c9..ea004fd4 100644 --- a/public/res/extensions/documentSelector.js +++ b/public/res/extensions/documentSelector.js @@ -106,7 +106,7 @@ define([ dropdownElt = crel('ul', { class: 'dropdown-menu dropdown-file-selector' }); - document.querySelector('.ui-layout-resizer-north').appendChild(crel('div', crel('div', { + document.querySelector('.navbar').appendChild(crel('div', crel('div', { 'data-toggle': 'dropdown' }), dropdownElt)); var $dropdownElt = $(dropdownElt).dropdown(); diff --git a/public/res/extensions/scrollLink.js b/public/res/extensions/scrollLink.js index 36aa60f3..7b5c3bcb 100644 --- a/public/res/extensions/scrollLink.js +++ b/public/res/extensions/scrollLink.js @@ -8,6 +8,10 @@ define([ var scrollLink = new Extension("scrollLink", "Scroll Link", true, true); scrollLink.settingsBlock = scrollLinkSettingsBlockHTML; + $.easing.easeOutSine = function( p ) { + return Math.cos((1 - p) * Math.PI / 2 ); + }; + var sectionList; scrollLink.onSectionsCreated = function(sectionListParam) { sectionList = sectionListParam; diff --git a/public/res/html/bodyIndex.html b/public/res/html/bodyIndex.html index 9582602a..291316ff 100644 --- a/public/res/html/bodyIndex.html +++ b/public/res/html/bodyIndex.html @@ -1,199 +1,205 @@ -
-
-
-
-
-
- -
-
-
-
-
    -
  • -
-
    -
  • -
-
    -
  • -
-
    -
  • -
-
    -
  • - -
    • -
-
    -
  • -
    - offline -
    -
    • -
  • -
-
    -
    • -
    • -
    • -
-
-
-

-

-

-

-
-

-	
-	

-		

-			
-				StackEdit Viewer
-
-		

-        
EXPORT

-		

-			 Synchronize...
-			

-				
-				
    
-					
  •  Save on Dropbox
    • 
-					
  •  Save on Google Drive
    • 
-					
  •  Save on Google Drive (2nd account)
    • 
-					
  •  Save on Google Drive (3rd account)
    • 
-					
  •  Google Drive AutoSync
    • 
-					
  •  Google Drive AutoSync (2nd account)
    • 
-					
  •  Google Drive AutoSync (3rd account)
    • 
+
    
+	
    
+		
    
+			
    
+				
    
+				
    
+				
    
+		    		
    
+		        		
+		    		    
    
+		        		
    
+		        	
    
+				
    
+				
      
+					
    • 
 				
    
-			
    
-			 Publish...
-			
    
-				
    
-			
-				Sharing links
-			 Export to disk
-			
    
-				
    
 		
    
-        
    IMPORT
    
-		
    
-             Open from
-                    Dropbox
-             Open from
-                    Google Drive
-             Open from
-                    Google Drive (2nd account)
-             Open from
-                    Google Drive (3rd account)
-             Import from disk
-             Import from URL
-             Convert HTML to Markdown
-		
    
-		
-
-	
    
-
    
-
-
-
    
-	
-	
    
-		
-		
    
-			
+		
    
+		
    
+			
    
+			
    
+			
    
+			
    
+			
    
+			
    
+				
    
+					
    
+				
    
+			
    
 		
    
 	
    
-	
    
-		
    
-		
    
+	
    
+
+	
    
+		
+		
    
+			
    
+				
+					StackEdit Viewer
+
+			
    
+	        
    EXPORT
    
+			
    
+				 Synchronize...
+				
    
+					
+					
+				
    
+				 Publish...
+				
    
+					
+					
      
+					
    
+				
    
+				
+					Sharing links
+				 Export to disk
+				
    
+					
+				
    
+			
    
+	        
    IMPORT
    
+			
    
+	             Open from
+	                    Dropbox
+	             Open from
+	                    Google Drive
+	             Open from
+	                    Google Drive (2nd account)
+	             Open from
+	                    Google Drive (3rd account)
+	             Import from disk
+	             Import from URL
+	             Convert HTML to Markdown
+			
    
+			
+
+		
    
+	
    
+
+
+	
    
+		
+		
    
+			
+			
    
+				
+			
    
+		
    
+		
    
+			
    
+			
    
+		
    
 	
    
 
    
 
-
 
    
 	
    
 		
    
@@ -1264,4 +1270,3 @@
 
 
    
 
    
-
    
diff --git a/public/res/layout.js b/public/res/layout.js
new file mode 100644
index 00000000..475db491
--- /dev/null
+++ b/public/res/layout.js
@@ -0,0 +1,373 @@
+define([
+    'jquery',
+    'underscore',
+    'utils',
+    'constants',
+    'eventMgr',
+    'crel',
+    'mousetrap',
+], function($, _, utils, constants, eventMgr, crel, mousetrap) {
+    var layout = {};
+
+    var resizerSize = 32;
+    var togglerSize = 60;
+    var navbarHeight = 50;
+    var editorMaxWidth = 250;
+    var previewMaxWidth = 330;
+    var menuPanelWidth = 280;
+    var documentPanelWidth = 320;
+    var windowSize;
+
+    function DomObject(selector) {
+        this.selector = selector;
+        this.elt = document.querySelector(selector);
+        this.$elt = $(this.elt);
+    }
+
+    var laterCssTimeoutId;
+    var laterCssQueue = [];
+
+    var outerWrapper, innerWrapper, navbar, menuPanel, documentPanel, editor, previewPanel, previewContainer, navbarToggler, previewToggler, previewResizer;
+
+    var animate = false;
+
+    function applyCssLater() {
+        if(laterCssQueue.length === 0) {
+            outerWrapper.$elt.removeClass('layout-animate');
+            animate = false;
+            return onResize();
+        }
+        laterCssQueue.shift()();
+        applyCssLater();
+    }
+
+    DomObject.prototype.applyCss = function() {
+
+        // Top/left
+        this.top !== undefined && (this.elt.style.top = this.top + 'px');
+        this.left !== undefined && (this.elt.style.left = this.left + 'px');
+
+        // Translate
+        if(this.x !== undefined || this.y !== undefined) {
+            this.x = this.x || 0;
+            this.y = this.y || 0;
+            this.elt.style['-webkit-transform'] = 'translate(' + this.x + 'px, ' + this.y + 'px)';
+            this.elt.style['-ms-transform'] = 'translate(' + this.x + 'px, ' + this.y + 'px)';
+            this.elt.style.transform = 'translate(' + this.x + 'px, ' + this.y + 'px)';
+        }
+
+        // Width (defer if new width is smaller)
+        if(animate && this.width < this.oldWidth) {
+            laterCssQueue.push(_.bind(function() {
+                this.elt.style.width = this.width + 'px';
+            }, this));
+        }
+        else {
+            this.width !== undefined && (this.elt.style.width = this.width + 'px');
+        }
+        this.oldWidth = this.width;
+
+        // Height (defer if new height is smaller)
+        if(animate && this.height < this.oldHeight) {
+            laterCssQueue.push(_.bind(function() {
+                this.elt.style.height = this.height + 'px';
+            }, this));
+        }
+        else {
+            this.height !== undefined && (this.elt.style.height = this.height + 'px');
+        }
+        this.oldHeight = this.height;
+
+        clearTimeout(laterCssTimeoutId);
+        laterCssTimeoutId = setTimeout(applyCssLater, 350);
+    };
+
+    DomObject.prototype.createToggler = function(backdrop) {
+        var backdropElt;
+        this.toggle = function(show) {
+            if(show === this.isOpen) {
+                return;
+            }
+            this.isOpen = _.isBoolean(show) ? show : !this.isOpen;
+            if(this.isOpen) {
+                this.$elt.addClass('panel-open');
+                if(backdrop) {
+                    $(backdropElt = utils.createBackdrop(outerWrapper.elt)).click(_.bind(function() {
+                        this.toggle(false);
+                    }, this));
+                    this.$elt.addClass('bring-to-front');
+                }
+            }
+            else {
+                backdropElt && backdropElt.removeBackdrop();
+                backdropElt = undefined;
+                laterCssQueue.push(_.bind(function() {
+                    !this.isOpen && this.$elt.find('.in').collapse('hide');
+                    this.$elt.toggleClass('panel-open', this.isOpen).toggleClass('bring-to-front', (!!backdrop && this.isOpen));
+                }, this));
+            }
+            animate = true;
+            outerWrapper.$elt.addClass('layout-animate');
+            resizeAll();
+        };
+    };
+
+    var maxWidthMap = [
+        { screenWidth: 0, maxWidth: 600 },
+        { screenWidth: 1000, maxWidth: 700 },
+        { screenWidth: 1200, maxWidth: 800 },
+        { screenWidth: 1400, maxWidth: 900 },
+    ];
+    var maxWidthMapReversed = maxWidthMap.slice(0).reverse();
+    function getMaxWidth() {
+        return _.find(maxWidthMapReversed, function(value) {
+            return windowSize.width > value.screenWidth;
+        }).maxWidth;
+    }
+
+    function onResize() {
+        var padding = (editor.elt.offsetWidth - getMaxWidth()) / 2;
+        if(padding < constants.EDITOR_DEFAULT_PADDING) {
+            padding = constants.EDITOR_DEFAULT_PADDING;
+        }
+        editorContentElt.style.paddingLeft = padding + 'px';
+        editorContentElt.style.paddingRight = padding + 'px';
+        editorMarginElt.style.width = padding + 'px',
+
+        eventMgr.onLayoutResize();
+    }
+
+    var editorContentElt;
+    var editorMarginElt;
+    function resizeAll() {
+        windowSize = {
+            width: window.innerWidth,
+            height: window.innerHeight
+        };
+
+        // Layout outer wrapper
+        outerWrapper.y = navbar.isOpen ? 0 : -navbarHeight;
+        outerWrapper.x = menuPanel.isOpen ? 0 : documentPanel.isOpen ? -(menuPanelWidth + documentPanelWidth) : -menuPanelWidth;
+        outerWrapper.width = windowSize.width + menuPanelWidth + documentPanelWidth;
+        outerWrapper.height = windowSize.height - outerWrapper.y;
+        outerWrapper.applyCss();
+
+        // Layout inner wrapper
+        innerWrapper.left = menuPanelWidth;
+        innerWrapper.width = windowSize.width;
+        innerWrapper.height = outerWrapper.height;
+        innerWrapper.applyCss();
+
+        // Preview panel
+        if(!previewPanel.isOpen) {
+            previewPanel.x = innerWrapper.width - resizerSize;
+        }
+        else {
+            if(previewPanel.halfSize) {
+                previewPanel.width = (windowSize.width + resizerSize) / 2;
+            }
+            if(previewPanel.width < previewMaxWidth) {
+                previewPanel.halfSize = false;
+                previewPanel.width = previewMaxWidth;
+            }
+            previewPanel.x = innerWrapper.width - previewPanel.width;
+            if(previewPanel.x < editorMaxWidth) {
+                previewPanel.halfSize = false;
+                previewPanel.x = editorMaxWidth;
+                previewPanel.width = innerWrapper.width - previewPanel.x;
+                if(previewPanel.width < previewMaxWidth) {
+                    previewPanel.isOpen = false;
+                    previewPanel.width = previewMaxWidth;
+                    previewPanel.x = innerWrapper.width - resizerSize;
+                }
+            }
+        }
+
+        previewPanel.top = navbarHeight;
+        previewPanel.height = innerWrapper.height - previewPanel.top;
+        previewPanel.applyCss();
+
+        // Editor
+        editor.top = navbarHeight;
+        editor.width = previewPanel.x;
+        editor.height = innerWrapper.height - editor.top;
+        editor.applyCss();
+
+        // Preview container
+        previewContainer.left = resizerSize;
+        previewContainer.width = previewPanel.width - resizerSize;
+        previewContainer.height = previewPanel.height;
+        previewContainer.applyCss();
+
+        // Navbar toggler
+        navbarToggler.applyCss();
+        navbarToggler.$elt.toggleClass('open', navbar.isOpen);
+
+        // Preview toggler
+        previewToggler.y = (previewPanel.height - togglerSize) / 2;
+        previewToggler.applyCss();
+        previewToggler.$elt.toggleClass('open', previewPanel.isOpen);
+
+        // Preview resizer
+        previewResizer.height = previewContainer.height;
+        previewResizer.applyCss();
+        previewResizer.$elt.toggleClass('open', previewPanel.isOpen);
+
+        onResize();
+    }
+    layout.resizeAll = resizeAll;
+
+    layout.init = function() {
+        outerWrapper = new DomObject('.layout-outer-wrapper');
+        innerWrapper = new DomObject('.layout-inner-wrapper');
+        navbar = new DomObject('.navbar');
+        menuPanel = new DomObject('.menu-panel');
+        documentPanel = new DomObject('.document-panel');
+        editor = new DomObject('#wmd-input');
+        previewPanel = new DomObject('.preview-panel');
+        previewContainer = new DomObject('.preview-container');
+        navbarToggler = new DomObject('.layout-toggler-navbar');
+        previewToggler = new DomObject('.layout-toggler-preview');
+        previewResizer = new DomObject('.layout-resizer-preview');
+
+        editorContentElt = editor.elt.querySelector('.editor-content');
+        editorMarginElt = editor.elt.querySelector('.editor-margin');
+
+        navbar.isOpen = true;
+        navbar.createToggler();
+        navbarToggler.$elt.click(_.bind(navbar.toggle, navbar));
+
+        previewPanel.isOpen = true;
+        previewPanel.createToggler();
+        previewPanel.halfSize = true;
+        previewToggler.$elt.click(_.bind(previewPanel.toggle, previewPanel));
+
+        menuPanel.isOpen = false;
+        menuPanel.createToggler(true);
+        menuPanel.$elt.find('.toggle-button').click(_.bind(menuPanel.toggle, menuPanel));
+
+        documentPanel.isOpen = false;
+        documentPanel.createToggler(true);
+        documentPanel.$elt.find('.toggle-button').click(_.bind(documentPanel.toggle, documentPanel));
+
+
+
+        // Hide menu panel when clicking 'Save as' button
+        $('.collapse-save-as a').click(function() {
+            menuPanel.toggle(false);
+        });
+
+        menuPanel.$elt.on('show.bs.collapse', function() {
+            // Close all open sub-menus when one submenu opens
+            menuPanel.$elt.find('.in').collapse('hide');
+        });
+
+        var isDragging = false;
+        var desiredWidth;
+        var lastCoord;
+        outerWrapper.$elt.on('mousemove', function(evt) {
+            if(!isDragging) {
+                return;
+            }
+            if(evt.which !== 1) {
+                isDragging = false;
+            }
+            else {
+                var newCoord = {
+                    x: evt.pageX,
+                    y: evt.pageY,
+                };
+                if(lastCoord.x !== newCoord.x) {
+                    desiredWidth += lastCoord.x - newCoord.x;
+                    previewPanel.width = desiredWidth;
+                    previewPanel.halfSize = false;
+                    resizeAll();
+                }
+                lastCoord = newCoord;
+                evt.preventDefault();
+            }
+        });
+
+        previewResizer.$elt.on('mousedown', function(evt) {
+            if(evt.which === 1) {
+                isDragging = true;
+                desiredWidth = previewPanel.width;
+                lastCoord = {
+                    x: evt.pageX,
+                    y: evt.pageY,
+                };
+            }
+        });
+
+        var isModalShown = false;
+        $('.modal').on('show.bs.modal', function() {
+            // Close panel if open
+            menuPanel.toggle(false);
+            documentPanel.toggle(false);
+            isModalShown = true;
+        }).on('hidden.bs.modal', function() {
+            isModalShown = false;
+        });
+
+        // Configure Mousetrap
+        mousetrap.stopCallback = function(e, element) {
+            return menuPanel.isOpen || documentPanel.isOpen || isModalShown || $(element).is("input, select, textarea:not(.ace_text-input)");
+        };
+
+
+        $(window).resize(resizeAll);
+        $(document.body).on('touchmove', function(evt) {
+            evt.preventDefault();
+        });
+
+        var styleContent = '';
+
+        // Apply font
+        function applyFont(size, screenWidth) {
+            screenWidth = screenWidth || 0;
+            //var codeFontSize = settings.editorFontSize;
+            //var codeLineHeight = Math.round(codeFontSize * 20 / 12);
+            var previewFontSize = size; // * 13 / 12;
+            styleContent += [
+                '@media (min-width: ' + screenWidth + 'px) {',
+                '#wmd-input {',
+                '   font-size: ' + size + 'px;',
+                //'   font-family: ' + settings.editorFontFamily + ';',
+                '}',
+                '#preview-contents {',
+                '   font-size: ' + previewFontSize + 'px;',
+                '}',
+                '}',
+            ].join('\n');
+        }
+        applyFont(16);
+        applyFont(17, 600);
+        applyFont(18, 1200);
+
+        function applyMaxWidth(maxWidth, screenWidth) {
+            styleContent += [
+                '@media (min-width: ' + screenWidth + 'px) {',
+                '#preview-contents {',
+                '   max-width: ' + (maxWidth + 30) + 'px;',
+                '}',
+                '}',
+            ].join('\n');
+        }
+        _.each(maxWidthMap, function(entry) {
+            applyMaxWidth(entry.maxWidth, entry.screenWidth);
+        });
+
+        // Apply dynamic stylesheet
+        var style = crel('style', {
+            type : 'text/css'
+        });
+        style.innerHTML = styleContent;
+        document.head.appendChild(style);
+
+
+
+        resizeAll();
+    };
+
+    return layout;
+});
diff --git a/public/res/styles/main.less b/public/res/styles/main.less
index 2fa3f915..a2f2672c 100644
--- a/public/res/styles/main.less
+++ b/public/res/styles/main.less
@@ -71,7 +71,7 @@
 @code-color: @secondary-color-darkest;
 @code-bg: fade(@secondary-desaturated, 7.5%);
 @hr-border: fade(@secondary-desaturated, 10%);
-@navbar-height: 49px;
+@navbar-height: 50px;
 @navbar-default-bg: @primary-bg;
 @nav-link-hover-bg: @btn-default-hover-bg;
 @nav-disabled-link-color: @disabled-color;
@@ -139,18 +139,13 @@
 
 body {
 	tab-size: 4;
+	overflow: hidden;
 }
 
 * {
     outline: none !important;
 }
 
-#preview-contents {
-	padding: 35px;
-	margin: 0 auto 200px;
-    text-align: justify;
-}
-
 .working {
 	cursor: progress;
 }
@@ -255,7 +250,13 @@ a {
     }
 }
 
-.move-to-front {
+.layout-panel() {
+	position: absolute;
+	top: 0;
+	left: 0;
+}
+
+.bring-to-front {
 	z-index: 1050 !important;
 }
 
@@ -408,11 +409,14 @@ a {
  *******************/
 
 .navbar {
-	position: static;
+	.layout-panel();
+	width: 100%;
 	padding: 0;
 	border: 0;
 	border-top: 1px solid @primary-border-color;
+	border-bottom: 1px solid @primary-border-color;
 	border-radius: 0;
+	z-index: 20;
 	.left-space, .right-space {
 		width: 25px;
 		height: @input-height-slim;
@@ -538,14 +542,11 @@ a {
 
 // Common style
 .menu-panel, .document-panel {
-	display: block;
-	position: absolute;
-	top: 0;
 	height: 100%;
-	z-index: 10;
+	z-index: 30;
 	overflow: initial;
-    .collapse-button {
-       	background-color: @panel-button-bg-color;
+    .toggle-button {
+    	background-color: @panel-button-bg-color;
         height: @input-height-slim;
         border-radius: 8px;
 		position: absolute;
@@ -560,7 +561,7 @@ a {
         	font-size: 14px;
         }
 	}
-    .collapse-button:hover, &.in .collapse-button, &.collapsing .collapse-button {
+    & .toggle-button:hover, &.panel-open > .toggle-button {
         border-width: 1px;
 	}
 	.panel-content {
@@ -574,13 +575,8 @@ a {
 }
 
 .menu-panel {
-	width: @menu-panel-width !important;
-	margin-left: (-@menu-panel-width - 15);
-    .transition(~"margin-left ease-in-out 0.35s");
-	.sub-menu {
-        background-color: @secondary-bg-lighter;
-        .box-shadow(~"inset 1px 0 1px rgba(0,0,0,.1), inset 1px 1px 4px rgba(0,0,0,.025)");
-	}
+	.layout-panel();
+	width: @menu-panel-width;
     .alert {
         padding: 15px 0;
     }
@@ -596,19 +592,16 @@ a {
             }
         }
     }
-	&.in {
-        margin-left: 0;
-    }
-    .collapse-button {
+    .toggle-button {
         border-top: 4px solid fade(@logo-yellow, @panel-button-border-fade);
         border-right: 5px solid fade(@logo-blue, @panel-button-border-fade);
         border-bottom: 4px solid fade(@logo-orange, @panel-button-border-fade);
-	    right: -50px;
+	    right: -37px;
 		z-index: -1;
 		padding: 0 10px 0 50px;
 	}
-    .collapse-button:hover, &.in .collapse-button, &.collapsing .collapse-button {
-        right: -55px;
+    & .toggle-button:hover, &.panel-open > .toggle-button {
+        right: -45px;
 	}
 	.panel-content {
 		background-color: @secondary-bg-light;
@@ -618,18 +611,15 @@ a {
 }
 
 .document-panel {
+	position: absolute;
+	top: 0;
 	right: 0;
-	width: @document-panel-width !important;
-	margin-right: (-@document-panel-width - 15);
-    .transition(~"margin-right ease-in-out 0.35s");
-	&.in {
-        margin-right: 0;
-    }
-    .collapse-button {
+	width: @document-panel-width;
+	.toggle-button {
         border-top: 4px solid fade(@logo-yellow, @panel-button-border-fade);
         border-left: 5px solid fade(@logo-green, @panel-button-border-fade);
         border-bottom: 4px solid fade(@logo-orange, @panel-button-border-fade);
-	    left: -50px;
+	    left: -37px;
 		padding: 0 50px 0 3px;
 		z-index: -1;
 		i.icon-folder-open {
@@ -637,8 +627,8 @@ a {
        		padding-bottom: 1px;
        	}
 	}
-    .collapse-button:hover, &.in .collapse-button, &.collapsing .collapse-button {
-        left: -55px;
+    & .toggle-button:hover, &.panel-open > .toggle-button {
+        left: -45px;
 	}
 	.panel-content {
 		background-color: @list-group-bg;
@@ -965,9 +955,63 @@ a {
 
 
 /*********************************
- * UI Layout
+ * Layout
  *********************************/
 
+.layout-outer-wrapper {
+	.layout-panel();
+	overflow: hidden;
+	&.layout-animate {
+		.transition(350ms ease-in-out all);
+	}
+}
+
+.layout-inner-wrapper {
+	.layout-panel();
+	overflow: hidden;
+}
+
+.layout-resizer {
+	.layout-panel();
+	width: @resizer-size;
+	height: @resizer-size;
+	&.open {
+		cursor: e-resize;
+	}
+}
+
+.layout-toggler {
+	.layout-panel();
+	padding: 0;
+	margin: 0;
+	width: @resizer-size;
+	height: 60px;
+	i {
+		font-size: 22px;
+	}
+	&.layout-toggler-preview {
+		line-height: 55px;
+		.layout-animate & {
+			.transition(350ms ease-in-out all);
+		}
+		i:before {
+			content: '\e87d';
+		}
+		&.open > i:before {
+			content: '\e87e';
+		}
+	}
+	&.layout-toggler-navbar {
+		line-height: 0;
+		i {
+			font-size: 16px;
+			height: 10.5px;
+			overflow: hidden;
+		}
+	}
+}
+
+
 .ui-layout-resizer {
 	overflow: visible !important;
     font-size: 14px !important;
@@ -1019,21 +1063,6 @@ a {
     border-bottom: 1px solid @primary-border-color;
 }
 
-.resizer-decorator {
-	position: absolute;
-	display: block !important;
-	.ui-layout-resizer-east & {
-    	width: @resizer-size;
-	    height: 100%;
-        border-left: 1px solid fade(@secondary, 6%);
-	}
-	.ui-layout-resizer-south & {
-    	height: @resizer-size;
-	    width: 100%;
-        border-top: 1px solid fade(@secondary, 6%);
-	}
-}
-
 
 /*****************************
  * Editor
@@ -1065,6 +1094,7 @@ a {
 }
 
 #wmd-input {
+	.layout-panel();
 	font-family: "PT Sans", sans-serif;
 	line-height: @editor-line-weight;
     letter-spacing: normal;
@@ -1300,23 +1330,31 @@ a {
     }
 }
 
-.textarea-helper {
-    font-family: @font-family-monospace;
-    font-size: @font-size-base;
-    position: absolute;
-    top: -100px;
-    height: 1px;
-    padding: 0;
-    line-height: @editor-line-weight;
-    position: absolute;
-    overflow: auto;
-    white-space: pre-wrap;
-    word-wrap: break-word;
+
+/*****************************
+* Preview
+*****************************/
+
+.preview-panel {
+	.layout-panel();
+	overflow: hidden;
+	border-left: 1px solid fade(@secondary, 6%);
+	background-color: @secondary-bg-light;
+	z-index: 10;
+	.layout-animate & {
+		.transition(350ms ease-in-out all);
+	}
+}
+
+#preview-contents {
+	padding: 35px;
+	margin: 0 auto 200px;
+	text-align: justify;
 }
 
 .preview-container {
+	position: absolute;
 	overflow: auto;
-	background-color: @secondary-bg-light;
 }
 
 .wmd-prompt-background {
diff --git a/public/res/utils.js b/public/res/utils.js
index 037c3da6..4e582fba 100644
--- a/public/res/utils.js
+++ b/public/res/utils.js
@@ -231,13 +231,12 @@ define([
     };
 
     // Create a backdrop and add to the body
-    utils.createBackdrop = function(toggle, target) {
+    utils.createBackdrop = function(parent) {
         var result = crel('div', {
             'class': 'modal-backdrop fade',
-            'data-toggle': toggle,
-            'data-target': target,
         });
-        document.body.appendChild(result);
+        parent = parent || document.body;
+        parent.appendChild(result);
         result.offsetWidth; // force reflow
         result.className = result.className + ' in';
         result.removeBackdrop = function() {
diff --git a/public/viewer.html b/public/viewer.html
index 6c006332..42029e33 100644
--- a/public/viewer.html
+++ b/public/viewer.html
@@ -1,6 +1,6 @@
 
 
-    
+
     
         StackEdit Viewer
         
@@ -8,7 +8,7 @@
         
         
         
-        
+        
         
         
         
     
-    
+