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/** * @output wp-admin/js/editor-expand.js */ ( function( window, $, undefined ) { 'use strict'; var $window = $( window ), $document = $( document ), $adminBar = $( '#wpadminbar' ), $footer = $( '#wpfooter' ); /** * Handles the resizing of the editor. * * @since 4.0.0 * * @return {void} */ $( function() { var $wrap = $( '#postdivrich' ), $contentWrap = $( '#wp-content-wrap' ), $tools = $( '#wp-content-editor-tools' ), $visualTop = $(), $visualEditor = $(), $textTop = $( '#ed_toolbar' ), $textEditor = $( '#content' ), textEditor = $textEditor[0], oldTextLength = 0, $bottom = $( '#post-status-info' ), $menuBar = $(), $statusBar = $(), $sideSortables = $( '#side-sortables' ), $postboxContainer = $( '#postbox-container-1' ), $postBody = $('#post-body'), fullscreen = window.wp.editor && window.wp.editor.fullscreen, mceEditor, mceBind = function(){}, mceUnbind = function(){}, fixedTop = false, fixedBottom = false, fixedSideTop = false, fixedSideBottom = false, scrollTimer, lastScrollPosition = 0, pageYOffsetAtTop = 130, pinnedToolsTop = 56, sidebarBottom = 20, autoresizeMinHeight = 300, initialMode = $contentWrap.hasClass( 'tmce-active' ) ? 'tinymce' : 'html', advanced = !! parseInt( window.getUserSetting( 'hidetb' ), 10 ), // These are corrected when adjust() runs, except on scrolling if already set. heights = { windowHeight: 0, windowWidth: 0, adminBarHeight: 0, toolsHeight: 0, menuBarHeight: 0, visualTopHeight: 0, textTopHeight: 0, bottomHeight: 0, statusBarHeight: 0, sideSortablesHeight: 0 }; /** * Resizes textarea based on scroll height and width. * * Doesn't shrink the editor size below the 300px auto resize minimum height. * * @since 4.6.1 * * @return {void} */ var shrinkTextarea = window._.throttle( function() { var x = window.scrollX || document.documentElement.scrollLeft; var y = window.scrollY || document.documentElement.scrollTop; var height = parseInt( textEditor.style.height, 10 ); textEditor.style.height = autoresizeMinHeight + 'px'; if ( textEditor.scrollHeight > autoresizeMinHeight ) { textEditor.style.height = textEditor.scrollHeight + 'px'; } if ( typeof x !== 'undefined' ) { window.scrollTo( x, y ); } if ( textEditor.scrollHeight < height ) { adjust(); } }, 300 ); /** * Resizes the text editor depending on the old text length. * * If there is an mceEditor and it is hidden, it resizes the editor depending * on the old text length. If the current length of the text is smaller than * the old text length, it shrinks the text area. Otherwise it resizes the editor to * the scroll height. * * @since 4.6.1 * * @return {void} */ function textEditorResize() { var length = textEditor.value.length; if ( mceEditor && ! mceEditor.isHidden() ) { return; } if ( ! mceEditor && initialMode === 'tinymce' ) { return; } if ( length < oldTextLength ) { shrinkTextarea(); } else if ( parseInt( textEditor.style.height, 10 ) < textEditor.scrollHeight ) { textEditor.style.height = Math.ceil( textEditor.scrollHeight ) + 'px'; adjust(); } oldTextLength = length; } /** * Gets the height and widths of elements. * * Gets the heights of the window, the adminbar, the tools, the menu, * the visualTop, the textTop, the bottom, the statusbar and sideSortables * and stores these in the heights object. Defaults to 0. * Gets the width of the window and stores this in the heights object. * * @since 4.0.0 * * @return {void} */ function getHeights() { var windowWidth = $window.width(); heights = { windowHeight: $window.height(), windowWidth: windowWidth, adminBarHeight: ( windowWidth > 600 ? $adminBar.outerHeight() : 0 ), toolsHeight: $tools.outerHeight() || 0, menuBarHeight: $menuBar.outerHeight() || 0, visualTopHeight: $visualTop.outerHeight() || 0, textTopHeight: $textTop.outerHeight() || 0, bottomHeight: $bottom.outerHeight() || 0, statusBarHeight: $statusBar.outerHeight() || 0, sideSortablesHeight: $sideSortables.height() || 0 }; // Adjust for hidden menubar. if ( heights.menuBarHeight < 3 ) { heights.menuBarHeight = 0; } } // We need to wait for TinyMCE to initialize. /** * Binds all necessary functions for editor expand to the editor when the editor * is initialized. * * @since 4.0.0 * * @param {event} event The TinyMCE editor init event. * @param {object} editor The editor to bind the vents on. * * @return {void} */ $document.on( 'tinymce-editor-init.editor-expand', function( event, editor ) { // VK contains the type of key pressed. VK = virtual keyboard. var VK = window.tinymce.util.VK, /** * Hides any float panel with a hover state. Additionally hides tooltips. * * @return {void} */ hideFloatPanels = _.debounce( function() { ! $( '.mce-floatpanel:hover' ).length && window.tinymce.ui.FloatPanel.hideAll(); $( '.mce-tooltip' ).hide(); }, 1000, true ); // Make sure it's the main editor. if ( editor.id !== 'content' ) { return; } // Copy the editor instance. mceEditor = editor; // Set the minimum height to the initial viewport height. editor.settings.autoresize_min_height = autoresizeMinHeight; // Get the necessary UI elements. $visualTop = $contentWrap.find( '.mce-toolbar-grp' ); $visualEditor = $contentWrap.find( '.mce-edit-area' ); $statusBar = $contentWrap.find( '.mce-statusbar' ); $menuBar = $contentWrap.find( '.mce-menubar' ); /** * Gets the offset of the editor. * * @return {number|boolean} Returns the offset of the editor * or false if there is no offset height. */ function mceGetCursorOffset() { var node = editor.selection.getNode(), range, view, offset; /* * If editor.wp.getView and the selection node from the editor selection * are defined, use this as a view for the offset. */ if ( editor.wp && editor.wp.getView && ( view = editor.wp.getView( node ) ) ) { offset = view.getBoundingClientRect(); } else { range = editor.selection.getRng(); // Try to get the offset from a range. try { offset = range.getClientRects()[0]; } catch( er ) {} // Get the offset from the bounding client rectangle of the node. if ( ! offset ) { offset = node.getBoundingClientRect(); } } return offset.height ? offset : false; } /** * Filters the special keys that should not be used for scrolling. * * @since 4.0.0 * * @param {event} event The event to get the key code from. * * @return {void} */ function mceKeyup( event ) { var key = event.keyCode; // Bail on special keys. Key code 47 is a '/'. if ( key <= 47 && ! ( key === VK.SPACEBAR || key === VK.ENTER || key === VK.DELETE || key === VK.BACKSPACE || key === VK.UP || key === VK.LEFT || key === VK.DOWN || key === VK.UP ) ) { return; // OS keys, function keys, num lock, scroll lock. Key code 91-93 are OS keys. // Key code 112-123 are F1 to F12. Key code 144 is num lock. Key code 145 is scroll lock. } else if ( ( key >= 91 && key <= 93 ) || ( key >= 112 && key <= 123 ) || key === 144 || key === 145 ) { return; } mceScroll( key ); } /** * Makes sure the cursor is always visible in the editor. * * Makes sure the cursor is kept between the toolbars of the editor and scrolls * the window when the cursor moves out of the viewport to a wpview. * Setting a buffer > 0 will prevent the browser default. * Some browsers will scroll to the middle, * others to the top/bottom of the *window* when moving the cursor out of the viewport. * * @since 4.1.0 * * @param {string} key The key code of the pressed key. * * @return {void} */ function mceScroll( key ) { var offset = mceGetCursorOffset(), buffer = 50, cursorTop, cursorBottom, editorTop, editorBottom; // Don't scroll if there is no offset. if ( ! offset ) { return; } // Determine the cursorTop based on the offset and the top of the editor iframe. cursorTop = offset.top + editor.iframeElement.getBoundingClientRect().top; // Determine the cursorBottom based on the cursorTop and offset height. cursorBottom = cursorTop + offset.height; // Subtract the buffer from the cursorTop. cursorTop = cursorTop - buffer; // Add the buffer to the cursorBottom. cursorBottom = cursorBottom + buffer; editorTop = heights.adminBarHeight + heights.toolsHeight + heights.menuBarHeight + heights.visualTopHeight; /* * Set the editorBottom based on the window Height, and add the bottomHeight and statusBarHeight if the * advanced editor is enabled. */ editorBottom = heights.windowHeight - ( advanced ? heights.bottomHeight + heights.statusBarHeight : 0 ); // Don't scroll if the node is taller than the visible part of the editor. if ( editorBottom - editorTop < offset.height ) { return; } /* * If the cursorTop is smaller than the editorTop and the up, left * or backspace key is pressed, scroll the editor to the position defined * by the cursorTop, pageYOffset and editorTop. */ if ( cursorTop < editorTop && ( key === VK.UP || key === VK.LEFT || key === VK.BACKSPACE ) ) { window.scrollTo( window.pageXOffset, cursorTop + window.pageYOffset - editorTop ); /* * If any other key is pressed or the cursorTop is bigger than the editorTop, * scroll the editor to the position defined by the cursorBottom, * pageYOffset and editorBottom. */ } else if ( cursorBottom > editorBottom ) { window.scrollTo( window.pageXOffset, cursorBottom + window.pageYOffset - editorBottom ); } } /** * If the editor is fullscreen, calls adjust. * * @since 4.1.0 * * @param {event} event The FullscreenStateChanged event. * * @return {void} */ function mceFullscreenToggled( event ) { // event.state is true if the editor is fullscreen. if ( ! event.state ) { adjust(); } } /** * Shows the editor when scrolled. * * Binds the hideFloatPanels function on the window scroll.mce-float-panels event. * Executes the wpAutoResize on the active editor. * * @since 4.0.0 * * @return {void} */ function mceShow() { $window.on( 'scroll.mce-float-panels', hideFloatPanels ); setTimeout( function() { editor.execCommand( 'wpAutoResize' ); adjust(); }, 300 ); } /** * Resizes the editor. * * Removes all functions from the window scroll.mce-float-panels event. * Resizes the text editor and scrolls to a position based on the pageXOffset and adminBarHeight. * * @since 4.0.0 * * @return {void} */ function mceHide() { $window.off( 'scroll.mce-float-panels' ); setTimeout( function() { var top = $contentWrap.offset().top; if ( window.pageYOffset > top ) { window.scrollTo( window.pageXOffset, top - heights.adminBarHeight ); } textEditorResize(); adjust(); }, 100 ); adjust(); } /** * Toggles advanced states. * * @since 4.1.0 * * @return {void} */ function toggleAdvanced() { advanced = ! advanced; } /** * Binds events of the editor and window. * * @since 4.0.0 * * @return {void} */ mceBind = function() { editor.on( 'keyup', mceKeyup ); editor.on( 'show', mceShow ); editor.on( 'hide', mceHide ); editor.on( 'wp-toolbar-toggle', toggleAdvanced ); // Adjust when the editor resizes. editor.on( 'setcontent wp-autoresize wp-toolbar-toggle', adjust ); // Don't hide the caret after undo/redo. editor.on( 'undo redo', mceScroll ); // Adjust when exiting TinyMCE's fullscreen mode. editor.on( 'FullscreenStateChanged', mceFullscreenToggled ); $window.off( 'scroll.mce-float-panels' ).on( 'scroll.mce-float-panels', hideFloatPanels ); }; /** * Unbinds the events of the editor and window. * * @since 4.0.0 * * @return {void} */ mceUnbind = function() { editor.off( 'keyup', mceKeyup ); editor.off( 'show', mceShow ); editor.off( 'hide', mceHide ); editor.off( 'wp-toolbar-toggle', toggleAdvanced ); editor.off( 'setcontent wp-autoresize wp-toolbar-toggle', adjust ); editor.off( 'undo redo', mceScroll ); editor.off( 'FullscreenStateChanged', mceFullscreenToggled ); $window.off( 'scroll.mce-float-panels' ); }; if ( $wrap.hasClass( 'wp-editor-expand' ) ) { // Adjust "immediately". mceBind(); initialResize( adjust ); } } ); /** * Adjusts the toolbars heights and positions. * * Adjusts the toolbars heights and positions based on the scroll position on * the page, the active editor mode and the heights of the editor, admin bar and * side bar. * * @since 4.0.0 * * @param {event} event The event that calls this function. * * @return {void} */ function adjust( event ) { // Makes sure we're not in fullscreen mode. if ( fullscreen && fullscreen.settings.visible ) { return; } var windowPos = $window.scrollTop(), type = event && event.type, resize = type !== 'scroll', visual = mceEditor && ! mceEditor.isHidden(), buffer = autoresizeMinHeight, postBodyTop = $postBody.offset().top, borderWidth = 1, contentWrapWidth = $contentWrap.width(), $top, $editor, sidebarTop, footerTop, canPin, topPos, topHeight, editorPos, editorHeight; /* * Refresh the heights if type isn't 'scroll' * or heights.windowHeight isn't set. */ if ( resize || ! heights.windowHeight ) { getHeights(); } // Resize on resize event when the editor is in text mode. if ( ! visual && type === 'resize' ) { textEditorResize(); } if ( visual ) { $top = $visualTop; $editor = $visualEditor; topHeight = heights.visualTopHeight; } else { $top = $textTop; $editor = $textEditor; topHeight = heights.textTopHeight; } // Return if TinyMCE is still initializing. if ( ! visual && ! $top.length ) { return; } topPos = $top.parent().offset().top; editorPos = $editor.offset().top; editorHeight = $editor.outerHeight(); /* * If in visual mode, checks if the editorHeight is greater than the autoresizeMinHeight + topHeight. * If not in visual mode, checks if the editorHeight is greater than the autoresizeMinHeight + 20. */ canPin = visual ? autoresizeMinHeight + topHeight : autoresizeMinHeight + 20; // 20px from textarea padding. canPin = editorHeight > ( canPin + 5 ); if ( ! canPin ) { if ( resize ) { $tools.css( { position: 'absolute', top: 0, width: contentWrapWidth } ); if ( visual && $menuBar.length ) { $menuBar.css( { position: 'absolute', top: 0, width: contentWrapWidth - ( borderWidth * 2 ) } ); } $top.css( { position: 'absolute', top: heights.menuBarHeight, width: contentWrapWidth - ( borderWidth * 2 ) - ( visual ? 0 : ( $top.outerWidth() - $top.width() ) ) } ); $statusBar.attr( 'style', advanced ? '' : 'visibility: hidden;' ); $bottom.attr( 'style', '' ); } } else { // Check if the top is not already in a fixed position. if ( ( ! fixedTop || resize ) && ( windowPos >= ( topPos - heights.toolsHeight - heights.adminBarHeight ) && windowPos <= ( topPos - heights.toolsHeight - heights.adminBarHeight + editorHeight - buffer ) ) ) { fixedTop = true; $tools.css( { position: 'fixed', top: heights.adminBarHeight, width: contentWrapWidth } ); if ( visual && $menuBar.length ) { $menuBar.css( { position: 'fixed', top: heights.adminBarHeight + heights.toolsHeight, width: contentWrapWidth - ( borderWidth * 2 ) - ( visual ? 0 : ( $top.outerWidth() - $top.width() ) ) } ); } $top.css( { position: 'fixed', top: heights.adminBarHeight + heights.toolsHeight + heights.menuBarHeight, width: contentWrapWidth - ( borderWidth * 2 ) - ( visual ? 0 : ( $top.outerWidth() - $top.width() ) ) } ); // Check if the top is already in a fixed position. } else if ( fixedTop || resize ) { if ( windowPos <= ( topPos - heights.toolsHeight - heights.adminBarHeight ) ) { fixedTop = false; $tools.css( { position: 'absolute', top: 0, width: contentWrapWidth } ); if ( visual && $menuBar.length ) { $menuBar.css( { position: 'absolute', top: 0, width: contentWrapWidth - ( borderWidth * 2 ) } ); } $top.css( { position: 'absolute', top: heights.menuBarHeight, width: contentWrapWidth - ( borderWidth * 2 ) - ( visual ? 0 : ( $top.outerWidth() - $top.width() ) ) } ); } else if ( windowPos >= ( topPos - heights.toolsHeight - heights.adminBarHeight + editorHeight - buffer ) ) { fixedTop = false; $tools.css( { position: 'absolute', top: editorHeight - buffer, width: contentWrapWidth } ); if ( visual && $menuBar.length ) { $menuBar.css( { position: 'absolute', top: editorHeight - buffer, width: contentWrapWidth - ( borderWidth * 2 ) } ); } $top.css( { position: 'absolute', top: editorHeight - buffer + heights.menuBarHeight, width: contentWrapWidth - ( borderWidth * 2 ) - ( visual ? 0 : ( $top.outerWidth() - $top.width() ) ) } ); } } // Check if the bottom is not already in a fixed position. if ( ( ! fixedBottom || ( resize && advanced ) ) && // Add borderWidth for the border around the .wp-editor-container. ( windowPos + heights.windowHeight ) <= ( editorPos + editorHeight + heights.bottomHeight + heights.statusBarHeight + borderWidth ) ) { if ( event && event.deltaHeight > 0 && event.deltaHeight < 100 ) { window.scrollBy( 0, event.deltaHeight ); } else if ( visual && advanced ) { fixedBottom = true; $statusBar.css( { position: 'fixed', bottom: heights.bottomHeight, visibility: '', width: contentWrapWidth - ( borderWidth * 2 ) } ); $bottom.css( { position: 'fixed', bottom: 0, width: contentWrapWidth } ); } } else if ( ( ! advanced && fixedBottom ) || ( ( fixedBottom || resize ) && ( windowPos + heights.windowHeight ) > ( editorPos + editorHeight + heights.bottomHeight + heights.statusBarHeight - borderWidth ) ) ) { fixedBottom = false; $statusBar.attr( 'style', advanced ? '' : 'visibility: hidden;' ); $bottom.attr( 'style', '' ); } } // The postbox container is positioned with @media from CSS. Ensure it is pinned on the side. if ( $postboxContainer.width() < 300 && heights.windowWidth > 600 && // Check if the sidebar is not taller than the document height. $document.height() > ( $sideSortables.height() + postBodyTop + 120 ) && // Check if the editor is taller than the viewport. heights.windowHeight < editorHeight ) { if ( ( heights.sideSortablesHeight + pinnedToolsTop + sidebarBottom ) > heights.windowHeight || fixedSideTop || fixedSideBottom ) { // Reset the sideSortables style when scrolling to the top. if ( windowPos + pinnedToolsTop <= postBodyTop ) { $sideSortables.attr( 'style', '' ); fixedSideTop = fixedSideBottom = false; } else { // When scrolling down. if ( windowPos > lastScrollPosition ) { if ( fixedSideTop ) { // Let it scroll. fixedSideTop = false; sidebarTop = $sideSortables.offset().top - heights.adminBarHeight; footerTop = $footer.offset().top; // Don't get over the footer. if ( footerTop < sidebarTop + heights.sideSortablesHeight + sidebarBottom ) { sidebarTop = footerTop - heights.sideSortablesHeight - 12; } $sideSortables.css({ position: 'absolute', top: sidebarTop, bottom: '' }); } else if ( ! fixedSideBottom && heights.sideSortablesHeight + $sideSortables.offset().top + sidebarBottom < windowPos + heights.windowHeight ) { // Pin the bottom. fixedSideBottom = true; $sideSortables.css({ position: 'fixed', top: 'auto', bottom: sidebarBottom }); } // When scrolling up. } else if ( windowPos < lastScrollPosition ) { if ( fixedSideBottom ) { // Let it scroll. fixedSideBottom = false; sidebarTop = $sideSortables.offset().top - sidebarBottom; footerTop = $footer.offset().top; // Don't get over the footer. if ( footerTop < sidebarTop + heights.sideSortablesHeight + sidebarBottom ) { sidebarTop = footerTop - heights.sideSortablesHeight - 12; } $sideSortables.css({ position: 'absolute', top: sidebarTop, bottom: '' }); } else if ( ! fixedSideTop && $sideSortables.offset().top >= windowPos + pinnedToolsTop ) { // Pin the top. fixedSideTop = true; $sideSortables.css({ position: 'fixed', top: pinnedToolsTop, bottom: '' }); } } } } else { // If the sidebar container is smaller than the viewport, then pin/unpin the top when scrolling. if ( windowPos >= ( postBodyTop - pinnedToolsTop ) ) { $sideSortables.css( { position: 'fixed', top: pinnedToolsTop } ); } else { $sideSortables.attr( 'style', '' ); } fixedSideTop = fixedSideBottom = false; } lastScrollPosition = windowPos; } else { $sideSortables.attr( 'style', '' ); fixedSideTop = fixedSideBottom = false; } if ( resize ) { $contentWrap.css( { paddingTop: heights.toolsHeight } ); if ( visual ) { $visualEditor.css( { paddingTop: heights.visualTopHeight + heights.menuBarHeight } ); } else { $textEditor.css( { marginTop: heights.textTopHeight } ); } } } /** * Resizes the editor and adjusts the toolbars. * * @since 4.0.0 * * @return {void} */ function fullscreenHide() { textEditorResize(); adjust(); } /** * Runs the passed function with 500ms intervals. * * @since 4.0.0 * * @param {function} callback The function to run in the timeout. * * @return {void} */ function initialResize( callback ) { for ( var i = 1; i < 6; i++ ) { setTimeout( callback, 500 * i ); } } /** * Runs adjust after 100ms. * * @since 4.0.0 * * @return {void} */ function afterScroll() { clearTimeout( scrollTimer ); scrollTimer = setTimeout( adjust, 100 ); } /** * Binds editor expand events on elements. * * @since 4.0.0 * * @return {void} */ function on() { /* * Scroll to the top when triggering this from JS. * Ensure the toolbars are pinned properly. */ if ( window.pageYOffset && window.pageYOffset > pageYOffsetAtTop ) { window.scrollTo( window.pageXOffset, 0 ); } $wrap.addClass( 'wp-editor-expand' ); // Adjust when the window is scrolled or resized. $window.on( 'scroll.editor-expand resize.editor-expand', function( event ) { adjust( event.type ); afterScroll(); } ); /* * Adjust when collapsing the menu, changing the columns * or changing the body class. */ $document.on( 'wp-collapse-menu.editor-expand postboxes-columnchange.editor-expand editor-classchange.editor-expand', adjust ) .on( 'postbox-toggled.editor-expand postbox-moved.editor-expand', function() { if ( ! fixedSideTop && ! fixedSideBottom && window.pageYOffset > pinnedToolsTop ) { fixedSideBottom = true; window.scrollBy( 0, -1 ); adjust(); window.scrollBy( 0, 1 ); } adjust(); }).on( 'wp-window-resized.editor-expand', function() { if ( mceEditor && ! mceEditor.isHidden() ) { mceEditor.execCommand( 'wpAutoResize' ); } else { textEditorResize(); } }); $textEditor.on( 'focus.editor-expand input.editor-expand propertychange.editor-expand', textEditorResize ); mceBind(); // Adjust when entering or exiting fullscreen mode. fullscreen && fullscreen.pubsub.subscribe( 'hidden', fullscreenHide ); if ( mceEditor ) { mceEditor.settings.wp_autoresize_on = true; mceEditor.execCommand( 'wpAutoResizeOn' ); if ( ! mceEditor.isHidden() ) { mceEditor.execCommand( 'wpAutoResize' ); } } if ( ! mceEditor || mceEditor.isHidden() ) { textEditorResize(); } adjust(); $document.trigger( 'editor-expand-on' ); } /** * Unbinds editor expand events. * * @since 4.0.0 * * @return {void} */ function off() { var height = parseInt( window.getUserSetting( 'ed_size', 300 ), 10 ); if ( height < 50 ) { height = 50; } else if ( height > 5000 ) { height = 5000; } /* * Scroll to the top when triggering this from JS. * Ensure the toolbars are reset properly. */ if ( window.pageYOffset && window.pageYOffset > pageYOffsetAtTop ) { window.scrollTo( window.pageXOffset, 0 ); } $wrap.removeClass( 'wp-editor-expand' ); $window.off( '.editor-expand' ); $document.off( '.editor-expand' ); $textEditor.off( '.editor-expand' ); mceUnbind(); // Adjust when entering or exiting fullscreen mode. fullscreen && fullscreen.pubsub.unsubscribe( 'hidden', fullscreenHide ); // Reset all CSS. $.each( [ $visualTop, $textTop, $tools, $menuBar, $bottom, $statusBar, $contentWrap, $visualEditor, $textEditor, $sideSortables ], function( i, element ) { element && element.attr( 'style', '' ); }); fixedTop = fixedBottom = fixedSideTop = fixedSideBottom = false; if ( mceEditor ) { mceEditor.settings.wp_autoresize_on = false; mceEditor.execCommand( 'wpAutoResizeOff' ); if ( ! mceEditor.isHidden() ) { $textEditor.hide(); if ( height ) { mceEditor.theme.resizeTo( null, height ); } } } // If there is a height found in the user setting. if ( height ) { $textEditor.height( height ); } $document.trigger( 'editor-expand-off' ); } // Start on load. if ( $wrap.hasClass( 'wp-editor-expand' ) ) { on(); // Resize just after CSS has fully loaded and QuickTags is ready. if ( $contentWrap.hasClass( 'html-active' ) ) { initialResize( function() { adjust(); textEditorResize(); } ); } } // Show the on/off checkbox. $( '#adv-settings .editor-expand' ).show(); $( '#editor-expand-toggle' ).on( 'change.editor-expand', function() { if ( $(this).prop( 'checked' ) ) { on(); window.setUserSetting( 'editor_expand', 'on' ); } else { off(); window.setUserSetting( 'editor_expand', 'off' ); } }); // Expose on() and off(). window.editorExpand = { on: on, off: off }; } ); /** * Handles the distraction free writing of TinyMCE. * * @since 4.1.0 * * @return {void} */ $( function() { var $body = $( document.body ), $wrap = $( '#wpcontent' ), $editor = $( '#post-body-content' ), $title = $( '#title' ), $content = $( '#content' ), $overlay = $( document.createElement( 'DIV' ) ), $slug = $( '#edit-slug-box' ), $slugFocusEl = $slug.find( 'a' ) .add( $slug.find( 'button' ) ) .add( $slug.find( 'input' ) ), $menuWrap = $( '#adminmenuwrap' ), $editorWindow = $(), $editorIframe = $(), _isActive = window.getUserSetting( 'editor_expand', 'on' ) === 'on', _isOn = _isActive ? window.getUserSetting( 'post_dfw' ) === 'on' : false, traveledX = 0, traveledY = 0, buffer = 20, faded, fadedAdminBar, fadedSlug, editorRect, x, y, mouseY, scrollY, focusLostTimer, overlayTimer, editorHasFocus; $body.append( $overlay ); $overlay.css( { display: 'none', position: 'fixed', top: $adminBar.height(), right: 0, bottom: 0, left: 0, 'z-index': 9997 } ); $editor.css( { position: 'relative' } ); $window.on( 'mousemove.focus', function( event ) { mouseY = event.pageY; } ); /** * Recalculates the bottom and right position of the editor in the DOM. * * @since 4.1.0 * * @return {void} */ function recalcEditorRect() { editorRect = $editor.offset(); editorRect.right = editorRect.left + $editor.outerWidth(); editorRect.bottom = editorRect.top + $editor.outerHeight(); } /** * Activates the distraction free writing mode. * * @since 4.1.0 * * @return {void} */ function activate() { if ( ! _isActive ) { _isActive = true; $document.trigger( 'dfw-activate' ); $content.on( 'keydown.focus-shortcut', toggleViaKeyboard ); } } /** * Deactivates the distraction free writing mode. * * @since 4.1.0 * * @return {void} */ function deactivate() { if ( _isActive ) { off(); _isActive = false; $document.trigger( 'dfw-deactivate' ); $content.off( 'keydown.focus-shortcut' ); } } /** * Returns _isActive. * * @since 4.1.0 * * @return {boolean} Returns true is _isActive is true. */ function isActive() { return _isActive; } /** * Binds events on the editor for distraction free writing. * * @since 4.1.0 * * @return {void} */ function on() { if ( ! _isOn && _isActive ) { _isOn = true; $content.on( 'keydown.focus', fadeOut ); $title.add( $content ).on( 'blur.focus', maybeFadeIn ); fadeOut(); window.setUserSetting( 'post_dfw', 'on' ); $document.trigger( 'dfw-on' ); } } /** * Unbinds events on the editor for distraction free writing. * * @since 4.1.0 * * @return {void} */ function off() { if ( _isOn ) { _isOn = false; $title.add( $content ).off( '.focus' ); fadeIn(); $editor.off( '.focus' ); window.setUserSetting( 'post_dfw', 'off' ); $document.trigger( 'dfw-off' ); } } /** * Binds or unbinds the editor expand events. * * @since 4.1.0 * * @return {void} */ function toggle() { if ( _isOn ) { off(); } else { on(); } } /** * Returns the value of _isOn. * * @since 4.1.0 * * @return {boolean} Returns true if _isOn is true. */ function isOn() { return _isOn; } /** * Fades out all elements except for the editor. * * The fading is done based on key presses and mouse movements. * Also calls the fadeIn on certain key presses * or if the mouse leaves the editor. * * @since 4.1.0 * * @param event The event that triggers this function. * * @return {void} */ function fadeOut( event ) { var isMac, key = event && event.keyCode; if ( window.navigator.platform ) { isMac = ( window.navigator.platform.indexOf( 'Mac' ) > -1 ); } // Fade in and returns on Escape and keyboard shortcut Alt+Shift+W and Ctrl+Opt+W. if ( key === 27 || ( key === 87 && event.altKey && ( ( ! isMac && event.shiftKey ) || ( isMac && event.ctrlKey ) ) ) ) { fadeIn( event ); return; } // Return if any of the following keys or combinations of keys is pressed. if ( event && ( event.metaKey || ( event.ctrlKey && ! event.altKey ) || ( event.altKey && event.shiftKey ) || ( key && ( // Special keys ( tab, ctrl, alt, esc, arrow keys... ). ( key <= 47 && key !== 8 && key !== 13 && key !== 32 && key !== 46 ) || // Windows keys. ( key >= 91 && key <= 93 ) || // F keys. ( key >= 112 && key <= 135 ) || // Num Lock, Scroll Lock, OEM. ( key >= 144 && key <= 150 ) || // OEM or non-printable. key >= 224 ) ) ) ) { return; } if ( ! faded ) { faded = true; clearTimeout( overlayTimer ); overlayTimer = setTimeout( function() { $overlay.show(); }, 600 ); $editor.css( 'z-index', 9998 ); $overlay // Always recalculate the editor area when entering the overlay with the mouse. .on( 'mouseenter.focus', function() { recalcEditorRect(); $window.on( 'scroll.focus', function() { var nScrollY = window.pageYOffset; if ( ( scrollY && mouseY && scrollY !== nScrollY ) && ( mouseY < editorRect.top - buffer || mouseY > editorRect.bottom + buffer ) ) { fadeIn(); } scrollY = nScrollY; } ); } ) .on( 'mouseleave.focus', function() { x = y = null; traveledX = traveledY = 0; $window.off( 'scroll.focus' ); } ) // Fade in when the mouse moves away form the editor area. .on( 'mousemove.focus', function( event ) { var nx = event.clientX, ny = event.clientY, pageYOffset = window.pageYOffset, pageXOffset = window.pageXOffset; if ( x && y && ( nx !== x || ny !== y ) ) { if ( ( ny <= y && ny < editorRect.top - pageYOffset ) || ( ny >= y && ny > editorRect.bottom - pageYOffset ) || ( nx <= x && nx < editorRect.left - pageXOffset ) || ( nx >= x && nx > editorRect.right - pageXOffset ) ) { traveledX += Math.abs( x - nx ); traveledY += Math.abs( y - ny ); if ( ( ny <= editorRect.top - buffer - pageYOffset || ny >= editorRect.bottom + buffer - pageYOffset || nx <= editorRect.left - buffer - pageXOffset || nx >= editorRect.right + buffer - pageXOffset ) && ( traveledX > 10 || traveledY > 10 ) ) { fadeIn(); x = y = null; traveledX = traveledY = 0; return; } } else { traveledX = traveledY = 0; } } x = nx; y = ny; } ) // When the overlay is touched, fade in and cancel the event. .on( 'touchstart.focus', function( event ) { event.preventDefault(); fadeIn(); } ); $editor.off( 'mouseenter.focus' ); if ( focusLostTimer ) { clearTimeout( focusLostTimer ); focusLostTimer = null; } $body.addClass( 'focus-on' ).removeClass( 'focus-off' ); } fadeOutAdminBar(); fadeOutSlug(); } /** * Fades all elements back in. * * @since 4.1.0 * * @param event The event that triggers this function. * * @return {void} */ function fadeIn( event ) { if ( faded ) { faded = false; clearTimeout( overlayTimer ); overlayTimer = setTimeout( function() { $overlay.hide(); }, 200 ); $editor.css( 'z-index', '' ); $overlay.off( 'mouseenter.focus mouseleave.focus mousemove.focus touchstart.focus' ); /* * When fading in, temporarily watch for refocus and fade back out - helps * with 'accidental' editor exits with the mouse. When fading in and the event * is a key event (Escape or Alt+Shift+W) don't watch for refocus. */ if ( 'undefined' === typeof event ) { $editor.on( 'mouseenter.focus', function() { if ( $.contains( $editor.get( 0 ), document.activeElement ) || editorHasFocus ) { fadeOut(); } } ); } focusLostTimer = setTimeout( function() { focusLostTimer = null; $editor.off( 'mouseenter.focus' ); }, 1000 ); $body.addClass( 'focus-off' ).removeClass( 'focus-on' ); } fadeInAdminBar(); fadeInSlug(); } /** * Fades in if the focused element based on it position. * * @since 4.1.0 * * @return {void} */ function maybeFadeIn() { setTimeout( function() { var position = document.activeElement.compareDocumentPosition( $editor.get( 0 ) ); function hasFocus( $el ) { return $.contains( $el.get( 0 ), document.activeElement ); } // The focused node is before or behind the editor area, and not outside the wrap. if ( ( position === 2 || position === 4 ) && ( hasFocus( $menuWrap ) || hasFocus( $wrap ) || hasFocus( $footer ) ) ) { fadeIn(); } }, 0 ); } /** * Fades out the admin bar based on focus on the admin bar. * * @since 4.1.0 * * @return {void} */ function fadeOutAdminBar() { if ( ! fadedAdminBar && faded ) { fadedAdminBar = true; $adminBar .on( 'mouseenter.focus', function() { $adminBar.addClass( 'focus-off' ); } ) .on( 'mouseleave.focus', function() { $adminBar.removeClass( 'focus-off' ); } ); } } /** * Fades in the admin bar. * * @since 4.1.0 * * @return {void} */ function fadeInAdminBar() { if ( fadedAdminBar ) { fadedAdminBar = false; $adminBar.off( '.focus' ); } } /** * Fades out the edit slug box. * * @since 4.1.0 * * @return {void} */ function fadeOutSlug() { if ( ! fadedSlug && faded && ! $slug.find( ':focus').length ) { fadedSlug = true; $slug.stop().fadeTo( 'fast', 0.3 ).on( 'mouseenter.focus', fadeInSlug ).off( 'mouseleave.focus' ); $slugFocusEl.on( 'focus.focus', fadeInSlug ).off( 'blur.focus' ); } } /** * Fades in the edit slug box. * * @since 4.1.0 * * @return {void} */ function fadeInSlug() { if ( fadedSlug ) { fadedSlug = false; $slug.stop().fadeTo( 'fast', 1 ).on( 'mouseleave.focus', fadeOutSlug ).off( 'mouseenter.focus' ); $slugFocusEl.on( 'blur.focus', fadeOutSlug ).off( 'focus.focus' ); } } /** * Triggers the toggle on Alt + Shift + W. * * Keycode 87 = w. * * @since 4.1.0 * * @param {event} event The event to trigger the toggle. * * @return {void} */ function toggleViaKeyboard( event ) { if ( event.altKey && event.shiftKey && 87 === event.keyCode ) { toggle(); } } if ( $( '#postdivrich' ).hasClass( 'wp-editor-expand' ) ) { $content.on( 'keydown.focus-shortcut', toggleViaKeyboard ); } /** * Adds the distraction free writing button when setting up TinyMCE. * * @since 4.1.0 * * @param {event} event The TinyMCE editor setup event. * @param {object} editor The editor to add the button to. * * @return {void} */ $document.on( 'tinymce-editor-setup.focus', function( event, editor ) { editor.addButton( 'dfw', { active: _isOn, classes: 'wp-dfw btn widget', disabled: ! _isActive, onclick: toggle, onPostRender: function() { var button = this; editor.on( 'init', function() { if ( button.disabled() ) { button.hide(); } } ); $document .on( 'dfw-activate.focus', function() { button.disabled( false ); button.show(); } ) .on( 'dfw-deactivate.focus', function() { button.disabled( true ); button.hide(); } ) .on( 'dfw-on.focus', function() { button.active( true ); } ) .on( 'dfw-off.focus', function() { button.active( false ); } ); }, tooltip: 'Distraction-free writing mode', shortcut: 'Alt+Shift+W' } ); editor.addCommand( 'wpToggleDFW', toggle ); editor.addShortcut( 'access+w', '', 'wpToggleDFW' ); } ); /** * Binds and unbinds events on the editor. * * @since 4.1.0 * * @param {event} event The TinyMCE editor init event. * @param {object} editor The editor to bind events on. * * @return {void} */ $document.on( 'tinymce-editor-init.focus', function( event, editor ) { var mceBind, mceUnbind; function focus() { editorHasFocus = true; } function blur() { editorHasFocus = false; } if ( editor.id === 'content' ) { $editorWindow = $( editor.getWin() ); $editorIframe = $( editor.getContentAreaContainer() ).find( 'iframe' ); mceBind = function() { editor.on( 'keydown', fadeOut ); editor.on( 'blur', maybeFadeIn ); editor.on( 'focus', focus ); editor.on( 'blur', blur ); editor.on( 'wp-autoresize', recalcEditorRect ); }; mceUnbind = function() { editor.off( 'keydown', fadeOut ); editor.off( 'blur', maybeFadeIn ); editor.off( 'focus', focus ); editor.off( 'blur', blur ); editor.off( 'wp-autoresize', recalcEditorRect ); }; if ( _isOn ) { mceBind(); } // Bind and unbind based on the distraction free writing focus. $document.on( 'dfw-on.focus', mceBind ).on( 'dfw-off.focus', mceUnbind ); // Focus the editor when it is the target of the click event. editor.on( 'click', function( event ) { if ( event.target === editor.getDoc().documentElement ) { editor.focus(); } } ); } } ); /** * Binds events on quicktags init. * * @since 4.1.0 * * @param {event} event The quicktags init event. * @param {object} editor The editor to bind events on. * * @return {void} */ $document.on( 'quicktags-init', function( event, editor ) { var $button; // Bind the distraction free writing events if the distraction free writing button is available. if ( editor.settings.buttons && ( ',' + editor.settings.buttons + ',' ).indexOf( ',dfw,' ) !== -1 ) { $button = $( '#' + editor.name + '_dfw' ); $( document ) .on( 'dfw-activate', function() { $button.prop( 'disabled', false ); } ) .on( 'dfw-deactivate', function() { $button.prop( 'disabled', true ); } ) .on( 'dfw-on', function() { $button.addClass( 'active' ); } ) .on( 'dfw-off', function() { $button.removeClass( 'active' ); } ); } } ); $document.on( 'editor-expand-on.focus', activate ).on( 'editor-expand-off.focus', deactivate ); if ( _isOn ) { $content.on( 'keydown.focus', fadeOut ); $title.add( $content ).on( 'blur.focus', maybeFadeIn ); } window.wp = window.wp || {}; window.wp.editor = window.wp.editor || {}; window.wp.editor.dfw = { activate: activate, deactivate: deactivate, isActive: isActive, on: on, off: off, toggle: toggle, isOn: isOn }; } ); } )( window, window.jQuery );
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