/
plugin.js
1191 lines (1013 loc) · 41.4 KB
/
plugin.js
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/**
* @license Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.
* For licensing, see LICENSE.html or http://ckeditor.com/license
*/
/**
* @ignore
* File overview: Clipboard support.
*/
//
// EXECUTION FLOWS:
// -- CTRL+C
// * browser's default behaviour
// -- CTRL+V
// * listen onKey (onkeydown)
// * simulate 'beforepaste' for non-IEs on editable
// * simulate 'paste' for Fx2/Opera on editable
// * listen 'onpaste' on editable ('onbeforepaste' for IE)
// * fire 'beforePaste' on editor
// * !canceled && getClipboardDataByPastebin
// * fire 'paste' on editor
// * !canceled && fire 'afterPaste' on editor
// -- CTRL+X
// * listen onKey (onkeydown)
// * fire 'saveSnapshot' on editor
// * browser's default behaviour
// * deferred second 'saveSnapshot' event
// -- Copy command
// * tryToCutCopy
// * execCommand
// * !success && alert
// -- Cut command
// * fixCut
// * tryToCutCopy
// * execCommand
// * !success && alert
// -- Paste command
// * fire 'paste' on editable ('beforepaste' for IE)
// * !canceled && execCommand 'paste'
// * !success && fire 'pasteDialog' on editor
// -- Paste from native context menu & menubar
// (Fx & Webkits are handled in 'paste' default listner.
// Opera cannot be handled at all because it doesn't fire any events
// Special treatment is needed for IE, for which is this part of doc)
// * listen 'onpaste'
// * cancel native event
// * fire 'beforePaste' on editor
// * !canceled && getClipboardDataByPastebin
// * execIECommand( 'paste' ) -> this fires another 'paste' event, so cancel it
// * fire 'paste' on editor
// * !canceled && fire 'afterPaste' on editor
//
//
// PASTE EVENT - PREPROCESSING:
// -- Possible dataValue types: auto, text, html.
// -- Possible dataValue contents:
// * text (possible \n\r)
// * htmlified text (text + br,div,p - no presentional markup & attrs - depends on browser)
// * html
// -- Possible flags:
// * htmlified - if true then content is a HTML even if no markup inside. This flag is set
// for content from editable pastebins, because they 'htmlify' pasted content.
//
// -- Type: auto:
// * content: htmlified text -> filter, unify text markup (brs, ps, divs), set type: text
// * content: html -> filter, set type: html
// -- Type: text:
// * content: htmlified text -> filter, unify text markup
// * content: html -> filter, strip presentional markup, unify text markup
// -- Type: html:
// * content: htmlified text -> filter, unify text markup
// * content: html -> filter
//
// -- Phases:
// * filtering (priorities 3-5) - e.g. pastefromword filters
// * content type sniffing (priority 6)
// * markup transformations for text (priority 6)
//
'use strict';
(function() {
// Register the plugin.
CKEDITOR.plugins.add( 'clipboard', {
requires: 'dialog',
lang: 'af,ar,bg,bn,bs,ca,cs,cy,da,de,el,en-au,en-ca,en-gb,en,eo,es,et,eu,fa,fi,fo,fr-ca,fr,gl,gu,he,hi,hr,hu,is,it,ja,ka,km,ko,lt,lv,mk,mn,ms,nb,nl,no,pl,pt-br,pt,ro,ru,sk,sl,sr-latn,sr,sv,th,tr,ug,uk,vi,zh-cn,zh', // %REMOVE_LINE_CORE%
icons: 'copy,copy-rtl,cut,cut-rtl,paste,paste-rtl', // %REMOVE_LINE_CORE%
init: function( editor ) {
var textificationFilter;
initClipboard( editor );
CKEDITOR.dialog.add( 'paste', CKEDITOR.getUrl( this.path + 'dialogs/paste.js' ) );
editor.on( 'paste', function( evt ) {
var data = evt.data.dataValue,
blockElements = CKEDITOR.dtd.$block;
// Filter webkit garbage.
if ( data.indexOf( 'Apple-' ) > -1 ) {
// Replace special webkit's with simple space, because webkit
// produces them even for normal spaces.
data = data.replace( /<span class="Apple-converted-space"> <\/span>/gi, ' ' );
// Strip <span> around white-spaces when not in forced 'html' content type.
// This spans are created only when pasting plain text into Webkit,
// but for safety reasons remove them always.
if ( evt.data.type != 'html' )
data = data.replace( /<span class="Apple-tab-span"[^>]*>([^<]*)<\/span>/gi, function( all, spaces ) {
// Replace tabs with 4 spaces like Fx does.
return spaces.replace( /\t/g, ' ' );
});
// This br is produced only when copying & pasting HTML content.
if ( data.indexOf( '<br class="Apple-interchange-newline">' ) > -1 ) {
evt.data.startsWithEOL = 1;
evt.data.preSniffing = 'html'; // Mark as not text.
data = data.replace( /<br class="Apple-interchange-newline">/, '' );
}
// Remove all other classes.
data = data.replace( /(<[^>]+) class="Apple-[^"]*"/gi, '$1' );
}
// Strip editable that was copied from inside. (#9534)
if ( data.match( /^<[^<]+cke_(editable|contents)/i ) ) {
var tmp,
editable_wrapper,
wrapper = new CKEDITOR.dom.element( 'div' );
wrapper.setHtml( data );
// Verify for sure and check for nested editor UI parts. (#9675)
while ( wrapper.getChildCount() == 1 &&
( tmp = wrapper.getFirst() ) &&
( tmp.hasClass( 'cke_editable' ) || tmp.hasClass( 'cke_contents' ) ) ) {
wrapper = editable_wrapper = tmp;
}
// If editable wrapper was found strip it and bogus <br> (added on FF).
if ( editable_wrapper )
data = editable_wrapper.getHtml().replace( /<br>$/i, '' );
}
if ( CKEDITOR.env.ie ) {
// <p> -> <p> (br.cke-pasted-remove will be removed later)
data = data.replace( /^ (?: |\r\n)?<(\w+)/g, function( match, elementName ) {
if ( elementName.toLowerCase() in blockElements ) {
evt.data.preSniffing = 'html'; // Mark as not a text.
return '<' + elementName;
}
return match;
});
} else if ( CKEDITOR.env.webkit ) {
// </p><div><br></div> -> </p><br>
// We don't mark br, because this situation can happen for htmlified text too.
data = data.replace( /<\/(\w+)><div><br><\/div>$/, function( match, elementName ) {
if ( elementName in blockElements ) {
evt.data.endsWithEOL = 1;
return '</' + elementName + '>';
}
return match;
});
} else if ( CKEDITOR.env.gecko ) {
// Firefox adds bogus <br> when user pasted text followed by space(s).
data = data.replace( /(\s)<br>$/, '$1' );
}
evt.data.dataValue = data;
}, null, null, 3 );
editor.on( 'paste', function( evt ) {
var dataObj = evt.data,
type = dataObj.type,
data = dataObj.dataValue,
trueType,
// Default is 'html'.
defaultType = editor.config.clipboard_defaultContentType || 'html';
// If forced type is 'html' we don't need to know true data type.
if ( type == 'html' || dataObj.preSniffing == 'html' )
trueType = 'html';
else
trueType = recogniseContentType( data );
// Unify text markup.
if ( trueType == 'htmlifiedtext' )
data = htmlifiedTextHtmlification( editor.config, data );
// Strip presentional markup & unify text markup.
else if ( type == 'text' && trueType == 'html' ) {
// Init filter only if needed and cache it.
data = htmlTextification( editor.config, data, textificationFilter || ( textificationFilter = getTextificationFilter( editor ) ) );
}
if ( dataObj.startsWithEOL )
data = '<br data-cke-eol="1">' + data;
if ( dataObj.endsWithEOL )
data += '<br data-cke-eol="1">';
if ( type == 'auto' )
type = ( trueType == 'html' || defaultType == 'html' ) ? 'html' : 'text';
dataObj.type = type;
dataObj.dataValue = data;
delete dataObj.preSniffing;
delete dataObj.startsWithEOL;
delete dataObj.endsWithEOL;
}, null, null, 6 );
// Inserts processed data into the editor at the end of the
// events chain.
editor.on( 'paste', function( evt ) {
var data = evt.data;
editor.insertHtml( data.dataValue, data.type );
// Deferr 'afterPaste' so all other listeners for 'paste' will be fired first.
setTimeout( function() {
editor.fire( 'afterPaste' );
}, 0 );
}, null, null, 1000 );
editor.on( 'pasteDialog', function( evt ) {
// TODO it's possible that this setTimeout is not needed any more,
// because of changes introduced in the same commit as this comment.
// Editor.getClipboardData adds listner to the dialog's events which are
// fired after a while (not like 'showDialog').
setTimeout( function() {
// Open default paste dialog.
editor.openDialog( 'paste', evt.data );
}, 0 );
});
}
});
function initClipboard( editor ) {
var preventBeforePasteEvent = 0,
preventPasteEvent = 0,
inReadOnly = 0,
// Safari doesn't like 'beforepaste' event - it sometimes doesn't
// properly handles ctrl+c. Probably some race-condition between events.
// Chrome and Firefox works well with both events, so better to use 'paste'
// which will handle pasting from e.g. browsers' menu bars.
// IE7/8 doesn't like 'paste' event for which it's throwing random errors.
mainPasteEvent = CKEDITOR.env.ie ? 'beforepaste' : 'paste';
addListeners();
addButtonsCommands();
/**
* Gets clipboard data by directly accessing the clipboard (IE only) or opening paste dialog.
*
* editor.getClipboardData( { title: 'Get my data' }, function( data ) {
* if ( data )
* alert( data.type + ' ' + data.dataValue );
* } );
*
* @member CKEDITOR.editor
* @param {Object} options
* @param {String} [options.title] Title of paste dialog.
* @param {Function} callback Function that will be executed with `data.type` and `data.dataValue`
* or `null` if none of the capturing method succeeded.
*/
editor.getClipboardData = function( options, callback ) {
var beforePasteNotCanceled = false,
dataType = 'auto',
dialogCommited = false;
// Options are optional - args shift.
if ( !callback ) {
callback = options;
options = null;
}
// Listen with maximum priority to handle content before everyone else.
// This callback will handle paste event that will be fired if direct
// access to the clipboard succeed in IE.
editor.on( 'paste', onPaste, null, null, 0 );
// Listen at the end of listeners chain to see if event wasn't canceled
// and to retrieve modified data.type.
editor.on( 'beforePaste', onBeforePaste, null, null, 1000 );
// getClipboardDataDirectly() will fire 'beforePaste' synchronously, so we can
// check if it was canceled and if any listener modified data.type.
// If command didn't succeed (only IE allows to access clipboard and only if
// user agrees) open and handle paste dialog.
if ( getClipboardDataDirectly() === false ) {
// Direct access to the clipboard wasn't successful so remove listener.
editor.removeListener( 'paste', onPaste );
// If beforePaste was canceled do not open dialog.
// Add listeners only if dialog really opened. 'pasteDialog' can be canceled.
if ( beforePasteNotCanceled && editor.fire( 'pasteDialog', onDialogOpen ) ) {
editor.on( 'pasteDialogCommit', onDialogCommit );
// 'dialogHide' will be fired after 'pasteDialogCommit'.
editor.on( 'dialogHide', function( evt ) {
evt.removeListener();
evt.data.removeListener( 'pasteDialogCommit', onDialogCommit );
// Because Opera has to wait a while in pasteDialog we have to wait here.
setTimeout( function() {
// Notify even if user canceled dialog (clicked 'cancel', ESC, etc).
if ( !dialogCommited )
callback( null );
}, 10 );
});
} else
callback( null );
}
function onPaste( evt ) {
evt.removeListener();
evt.cancel();
callback( evt.data );
}
function onBeforePaste( evt ) {
evt.removeListener();
beforePasteNotCanceled = true;
dataType = evt.data.type;
}
function onDialogCommit( evt ) {
evt.removeListener();
// Cancel pasteDialogCommit so paste dialog won't automatically fire
// 'paste' evt by itself.
evt.cancel();
dialogCommited = true;
callback( { type: dataType, dataValue: evt.data } );
}
function onDialogOpen() {
this.customTitle = ( options && options.title );
}
};
function addButtonsCommands() {
addButtonCommand( 'Cut', 'cut', createCutCopyCmd( 'cut' ), 10, 1 );
addButtonCommand( 'Copy', 'copy', createCutCopyCmd( 'copy' ), 20, 4 );
addButtonCommand( 'Paste', 'paste', createPasteCmd(), 30, 8 );
function addButtonCommand( buttonName, commandName, command, toolbarOrder, ctxMenuOrder ) {
var lang = editor.lang.clipboard[ commandName ];
editor.addCommand( commandName, command );
editor.ui.addButton && editor.ui.addButton( buttonName, {
label: lang,
command: commandName,
toolbar: 'clipboard,' + toolbarOrder
});
// If the "menu" plugin is loaded, register the menu item.
if ( editor.addMenuItems ) {
editor.addMenuItem( commandName, {
label: lang,
command: commandName,
group: 'clipboard',
order: ctxMenuOrder
});
}
}
}
function addListeners() {
editor.on( 'key', onKey );
editor.on( 'contentDom', addListenersToEditable );
// For improved performance, we're checking the readOnly state on selectionChange instead of hooking a key event for that.
editor.on( 'selectionChange', function( evt ) {
inReadOnly = evt.data.selection.getRanges()[ 0 ].checkReadOnly();
setToolbarStates();
});
// If the "contextmenu" plugin is loaded, register the listeners.
if ( editor.contextMenu ) {
editor.contextMenu.addListener( function( element, selection ) {
inReadOnly = selection.getRanges()[ 0 ].checkReadOnly();
return {
cut: stateFromNamedCommand( 'Cut' ),
copy: stateFromNamedCommand( 'Copy' ),
paste: stateFromNamedCommand( 'Paste' )
};
});
}
}
// Add events listeners to editable.
function addListenersToEditable() {
var editable = editor.editable();
// We'll be catching all pasted content in one line, regardless of whether
// it's introduced by a document command execution (e.g. toolbar buttons) or
// user paste behaviors (e.g. CTRL+V).
editable.on( mainPasteEvent, function( evt ) {
if ( CKEDITOR.env.ie && preventBeforePasteEvent )
return;
// If you've just asked yourself why preventPasteEventNow() is not here, but
// in listener for CTRL+V and exec method of 'paste' command
// you've asked the same question we did.
//
// THE ANSWER:
//
// First thing to notice - this answer makes sense only for IE,
// because other browsers don't listen for 'paste' event.
//
// What would happen if we move preventPasteEventNow() here?
// For:
// * CTRL+V - IE fires 'beforepaste', so we prevent 'paste' and pasteDataFromClipboard(). OK.
// * editor.execCommand( 'paste' ) - we fire 'beforepaste', so we prevent
// 'paste' and pasteDataFromClipboard() and doc.execCommand( 'Paste' ). OK.
// * native context menu - IE fires 'beforepaste', so we prevent 'paste', but unfortunately
// on IE we fail with pasteDataFromClipboard() here, because of... we don't know why, but
// we just fail, so... we paste nothing. FAIL.
// * native menu bar - the same as for native context menu.
//
// But don't you know any way to distinguish first two cases from last two?
// Only one - special flag set in CTRL+V handler and exec method of 'paste'
// command. And that's what we did using preventPasteEventNow().
pasteDataFromClipboard( evt );
});
// It's not possible to clearly handle all four paste methods (ctrl+v, native menu bar
// native context menu, editor's command) in one 'paste/beforepaste' event in IE.
//
// For ctrl+v & editor's command it's easy to handle pasting in 'beforepaste' listener,
// so we do this. For another two methods it's better to use 'paste' event.
//
// 'paste' is always being fired after 'beforepaste' (except of weird one on opening native
// context menu), so for two methods handled in 'beforepaste' we're canceling 'paste'
// using preventPasteEvent state.
//
// 'paste' event in IE is being fired before getClipboardDataByPastebin executes its callback.
//
// QUESTION: Why didn't you handle all 4 paste methods in handler for 'paste'?
// Wouldn't this just be simpler?
// ANSWER: Then we would have to evt.data.preventDefault() only for native
// context menu and menu bar pastes. The same with execIECommand().
// That would force us to mark CTRL+V and editor's paste command with
// special flag, other than preventPasteEvent. But we still would have to
// have preventPasteEvent for the second event fired by execIECommand.
// Code would be longer and not cleaner.
CKEDITOR.env.ie && editable.on( 'paste', function( evt ) {
if ( preventPasteEvent )
return;
// Cancel next 'paste' event fired by execIECommand( 'paste' )
// at the end of this callback.
preventPasteEventNow();
// Prevent native paste.
evt.data.preventDefault();
pasteDataFromClipboard( evt );
// Force IE to paste content into pastebin so pasteDataFromClipboard will work.
if ( !execIECommand( 'paste' ) )
editor.openDialog( 'paste' );
});
// [IE] Dismiss the (wrong) 'beforepaste' event fired on context/toolbar menu open. (#7953)
if ( CKEDITOR.env.ie ) {
editable.on( 'contextmenu', preventBeforePasteEventNow, null, null, 0 );
editable.on( 'beforepaste', function( evt ) {
if ( evt.data && !evt.data.$.ctrlKey )
preventBeforePasteEventNow();
}, null, null, 0 );
}
editable.on( 'beforecut', function() {
!preventBeforePasteEvent && fixCut( editor );
});
editable.on( 'mouseup', function() {
setTimeout( function() {
setToolbarStates();
}, 0 );
});
editable.on( 'keyup', setToolbarStates );
}
// Create object representing Cut or Copy commands.
function createCutCopyCmd( type ) {
return {
type: type,
canUndo: type == 'cut', // We can't undo copy to clipboard.
startDisabled: true,
exec: function( data ) {
// Attempts to execute the Cut and Copy operations.
function tryToCutCopy( type ) {
if ( CKEDITOR.env.ie )
return execIECommand( type );
// non-IEs part
try {
// Other browsers throw an error if the command is disabled.
return editor.document.$.execCommand( type, false, null );
} catch ( e ) {
return false;
}
}
this.type == 'cut' && fixCut();
var success = tryToCutCopy( this.type );
if ( !success )
alert( editor.lang.clipboard[ this.type + 'Error' ] ); // Show cutError or copyError.
return success;
}
};
}
function createPasteCmd() {
return {
// Snapshots are done manually by editable.insertXXX methods.
canUndo: false,
async: true,
exec: function( editor, data ) {
var fire = function( data, withBeforePaste ) {
data && firePasteEvents( data.type, data.dataValue, !!withBeforePaste );
editor.fire( 'afterCommandExec', {
name: 'paste',
command: cmd,
returnValue: !!data
});
},
cmd = this;
// Check data precisely - don't open dialog on empty string.
if ( typeof data == 'string' )
fire( { type: 'auto', dataValue: data }, 1 );
else
editor.getClipboardData( fire );
}
};
}
function preventPasteEventNow() {
preventPasteEvent = 1;
// For safety reason we should wait longer than 0/1ms.
// We don't know how long execution of quite complex getClipboardData will take
// and in for example 'paste' listner execCommand() (which fires 'paste') is called
// after getClipboardData finishes.
// Luckily, it's impossible to immediately fire another 'paste' event we want to handle,
// because we only handle there native context menu and menu bar.
setTimeout( function() {
preventPasteEvent = 0;
}, 100 );
}
function preventBeforePasteEventNow() {
preventBeforePasteEvent = 1;
setTimeout( function() {
preventBeforePasteEvent = 0;
}, 10 );
}
// Tries to execute any of the paste, cut or copy commands in IE. Returns a
// boolean indicating that the operation succeeded.
// @param {String} command *LOWER CASED* name of command ('paste', 'cut', 'copy').
function execIECommand( command ) {
var doc = editor.document,
body = doc.getBody(),
enabled = false,
onExec = function() {
enabled = true;
};
// The following seems to be the only reliable way to detect that
// clipboard commands are enabled in IE. It will fire the
// onpaste/oncut/oncopy events only if the security settings allowed
// the command to execute.
body.on( command, onExec );
// IE6/7: document.execCommand has problem to paste into positioned element.
( CKEDITOR.env.version > 7 ? doc.$ : doc.$.selection.createRange() )[ 'execCommand' ]( command );
body.removeListener( command, onExec );
return enabled;
}
function firePasteEvents( type, data, withBeforePaste ) {
var eventData = { type: type };
if ( withBeforePaste ) {
// Fire 'beforePaste' event so clipboard flavor get customized
// by other plugins.
if ( !editor.fire( 'beforePaste', eventData ) )
return false; // Event canceled
}
// The very last guard to make sure the paste has successfully happened.
// This check should be done after firing 'beforePaste' because for native paste
// 'beforePaste' is by default fired even for empty clipboard.
if ( !data )
return false;
// Reuse eventData.type because the default one could be changed by beforePaste listeners.
eventData.dataValue = data;
return editor.fire( 'paste', eventData );
}
// Cutting off control type element in IE standards breaks the selection entirely. (#4881)
function fixCut() {
if ( !CKEDITOR.env.ie || CKEDITOR.env.quirks )
return;
var sel = editor.getSelection(),
control, range, dummy;
if ( ( sel.getType() == CKEDITOR.SELECTION_ELEMENT ) && ( control = sel.getSelectedElement() ) ) {
range = sel.getRanges()[ 0 ];
dummy = editor.document.createText( '' );
dummy.insertBefore( control );
range.setStartBefore( dummy );
range.setEndAfter( control );
sel.selectRanges( [ range ] );
// Clear up the fix if the paste wasn't succeeded.
setTimeout( function() {
// Element still online?
if ( control.getParent() ) {
dummy.remove();
sel.selectElement( control );
}
}, 0 );
}
}
// Allow to peek clipboard content by redirecting the
// pasting content into a temporary bin and grab the content of it.
function getClipboardDataByPastebin( evt, callback ) {
var doc = editor.document,
editable = editor.editable(),
cancel = function( evt ) {
evt.cancel();
},
ff3x = CKEDITOR.env.gecko && CKEDITOR.env.version <= 10902;
// Avoid recursions on 'paste' event or consequent paste too fast. (#5730)
if ( doc.getById( 'cke_pastebin' ) )
return;
var sel = editor.getSelection();
var bms = sel.createBookmarks();
// Create container to paste into.
// For rich content we prefer to use "body" since it holds
// the least possibility to be splitted by pasted content, while this may
// breaks the text selection on a frame-less editable, "div" would be
// the best one in that case.
// In another case on old IEs moving the selection into a "body" paste bin causes error panic.
// Body can't be also used for Opera which fills it with <br>
// what is indistinguishable from pasted <br> (copying <br> in Opera isn't possible,
// but it can be copied from other browser).
var pastebin = new CKEDITOR.dom.element(
editable.is( 'body' ) && !( CKEDITOR.env.ie || CKEDITOR.env.opera ) ? 'body' : 'div', doc );
pastebin.setAttribute( 'id', 'cke_pastebin' );
// Append bogus to prevent Opera from doing this. (#9522)
if ( CKEDITOR.env.opera )
pastebin.appendBogus();
var containerOffset = 0,
win = doc.getWindow();
// Seems to be the only way to avoid page scroll in Fx 3.x.
if ( ff3x ) {
pastebin.insertAfter( bms[ 0 ].startNode );
pastebin.setStyle( 'display', 'inline' );
} else {
if ( CKEDITOR.env.webkit ) {
// It's better to paste close to the real paste destination, so inherited styles
// (which Webkits will try to compensate by styling span) differs less from the destination's one.
editable.append( pastebin );
// Compensate position of offsetParent.
containerOffset = ( editable.is( 'body' ) ? editable : CKEDITOR.dom.element.get( pastebin.$.offsetParent ) ).getDocumentPosition().y;
} else {
// Opera and IE doesn't allow to append to html element.
editable.getAscendant( CKEDITOR.env.ie || CKEDITOR.env.opera ? 'body' : 'html', 1 ).append( pastebin );
}
pastebin.setStyles({
position: 'absolute',
// Position the bin at the top (+10 for safety) of viewport to avoid any subsequent document scroll.
top: ( win.getScrollPosition().y - containerOffset + 10 ) + 'px',
width: '1px',
// Caret has to fit in that height, otherwise browsers like Chrome & Opera will scroll window to show it.
// Set height equal to viewport's height - 20px (safety gaps), minimum 1px.
height: Math.max( 1, win.getViewPaneSize().height - 20 ) + 'px',
overflow: 'hidden',
// Reset styles that can mess up pastebin position.
margin: 0,
padding: 0
});
}
// Check if the paste bin now establishes new editing host.
var isEditingHost = pastebin.getParent().isReadOnly();
if ( isEditingHost ) {
// Hide the paste bin.
pastebin.setOpacity( 0 );
// And make it editable.
pastebin.setAttribute( 'contenteditable', true );
}
// Transparency is not enough since positioned non-editing host always shows
// resize handler, pull it off the screen instead.
else
pastebin.setStyle( editor.config.contentsLangDirection == 'ltr' ? 'left' : 'right', '-1000px' );
editor.on( 'selectionChange', cancel, null, null, 0 );
// Temporarily move selection to the pastebin.
isEditingHost && pastebin.focus();
var range = new CKEDITOR.dom.range( pastebin );
range.selectNodeContents( pastebin );
var selPastebin = range.select();
// If non-native paste is executed, IE will open security alert and blur editable.
// Editable will then lock selection inside itself and after accepting security alert
// this selection will be restored. We overwrite stored selection, so it's restored
// in pastebin. (#9552)
if ( CKEDITOR.env.ie ) {
var blurListener = editable.once( 'blur', function( evt ) {
editor.lockSelection( selPastebin );
} );
}
// Wait a while and grab the pasted contents.
setTimeout( function() {
// Blur will be fired only on non-native paste. In other case manually remove listener.
blurListener && blurListener.removeListener();
// Restore properly the document focus. (#8849)
if ( CKEDITOR.env.ie )
editable.focus();
// IE7: selection must go before removing pastebin. (#8691)
sel.selectBookmarks( bms );
pastebin.remove();
// Grab the HTML contents.
// We need to look for a apple style wrapper on webkit it also adds
// a div wrapper if you copy/paste the body of the editor.
// Remove hidden div and restore selection.
var bogusSpan;
if ( CKEDITOR.env.webkit && ( bogusSpan = pastebin.getFirst() ) && ( bogusSpan.is && bogusSpan.hasClass( 'Apple-style-span' ) ) )
pastebin = bogusSpan;
editor.removeListener( 'selectionChange', cancel );
callback( pastebin.getHtml() );
}, 0 );
}
// Try to get content directly from clipboard, without native event
// being fired before. In other words - synthetically get clipboard data
// if it's possible.
// mainPasteEvent will be fired, so if forced native paste:
// * worked, getClipboardDataByPastebin will grab it,
// * didn't work, pastebin will be empty and editor#paste won't be fired.
function getClipboardDataDirectly() {
if ( CKEDITOR.env.ie ) {
// Prevent IE from pasting at the begining of the document.
editor.focus();
// Command will be handled by 'beforepaste', but as
// execIECommand( 'paste' ) will fire also 'paste' event
// we're canceling it.
preventPasteEventNow();
// #9247: Lock focus to prevent IE from hiding toolbar for inline editor.
var focusManager = editor.focusManager;
focusManager.lock();
if ( editor.editable().fire( mainPasteEvent ) && !execIECommand( 'paste' ) ) {
focusManager.unlock();
return false;
}
focusManager.unlock();
} else {
try {
if ( editor.editable().fire( mainPasteEvent ) && !editor.document.$.execCommand( 'Paste', false, null ) ) {
throw 0;
}
} catch ( e ) {
return false;
}
}
return true;
}
// Listens for some clipboard related keystrokes, so they get customized.
// Needs to be bind to keydown event.
function onKey( event ) {
if ( editor.mode != 'wysiwyg' )
return;
switch ( event.data.keyCode ) {
// Paste
case CKEDITOR.CTRL + 86: // CTRL+V
case CKEDITOR.SHIFT + 45: // SHIFT+INS
var editable = editor.editable();
// Cancel 'paste' event because ctrl+v is for IE handled
// by 'beforepaste'.
preventPasteEventNow();
// Simulate 'beforepaste' event for all none-IEs.
!CKEDITOR.env.ie && editable.fire( 'beforepaste' );
// Simulate 'paste' event for Opera/Firefox2.
if ( CKEDITOR.env.opera || CKEDITOR.env.gecko && CKEDITOR.env.version < 10900 )
editable.fire( 'paste' );
return;
// Cut
case CKEDITOR.CTRL + 88: // CTRL+X
case CKEDITOR.SHIFT + 46: // SHIFT+DEL
// Save Undo snapshot.
editor.fire( 'saveSnapshot' ); // Save before cut
setTimeout( function() {
editor.fire( 'saveSnapshot' ); // Save after cut
}, 0 );
}
}
function pasteDataFromClipboard( evt ) {
// Default type is 'auto', but can be changed by beforePaste listeners.
var eventData = { type: 'auto' };
// Fire 'beforePaste' event so clipboard flavor get customized by other plugins.
// If 'beforePaste' is canceled continue executing getClipboardDataByPastebin and then do nothing
// (do not fire 'paste', 'afterPaste' events). This way we can grab all - synthetically
// and natively pasted content and prevent its insertion into editor
// after canceling 'beforePaste' event.
var beforePasteNotCanceled = editor.fire( 'beforePaste', eventData );
getClipboardDataByPastebin( evt, function( data ) {
// Clean up.
data = data.replace( /<span[^>]+data-cke-bookmark[^<]*?<\/span>/ig, '' );
// Fire remaining events (without beforePaste)
beforePasteNotCanceled && firePasteEvents( eventData.type, data, 0, 1 );
});
}
function setToolbarStates() {
if ( editor.mode != 'wysiwyg' )
return;
var pasteState = stateFromNamedCommand( 'Paste' );
editor.getCommand( 'cut' ).setState( stateFromNamedCommand( 'Cut' ) );
editor.getCommand( 'copy' ).setState( stateFromNamedCommand( 'Copy' ) );
editor.getCommand( 'paste' ).setState( pasteState );
editor.fire( 'pasteState', pasteState );
}
function stateFromNamedCommand( command ) {
var retval;
if ( inReadOnly && command in { Paste:1,Cut:1 } )
return CKEDITOR.TRISTATE_DISABLED;
if ( command == 'Paste' ) {
// IE Bug: queryCommandEnabled('paste') fires also 'beforepaste(copy/cut)',
// guard to distinguish from the ordinary sources (either
// keyboard paste or execCommand) (#4874).
CKEDITOR.env.ie && ( preventBeforePasteEvent = 1 );
try {
// Always return true for Webkit (which always returns false)
retval = editor.document.$.queryCommandEnabled( command ) || CKEDITOR.env.webkit;
} catch ( er ) {}
preventBeforePasteEvent = 0;
}
// Cut, Copy - check if the selection is not empty
else {
var sel = editor.getSelection(),
ranges = sel.getRanges();
retval = sel.type != CKEDITOR.SELECTION_NONE && !( ranges.length == 1 && ranges[ 0 ].collapsed );
}
return retval ? CKEDITOR.TRISTATE_OFF : CKEDITOR.TRISTATE_DISABLED;
}
}
// Returns:
// * 'htmlifiedtext' if content looks like transformed by browser from plain text.
// See clipboard/paste.html TCs for more info.
// * 'html' if it is not 'htmlifiedtext'.
function recogniseContentType( data ) {
if ( CKEDITOR.env.webkit ) {
// Plain text or ( <div><br></div> and text inside <div> ).
if ( !data.match( /^[^<]*$/g ) && !data.match( /^(<div><br( ?\/)?><\/div>|<div>[^<]*<\/div>)*$/gi ) )
return 'html';
} else if ( CKEDITOR.env.ie ) {
// Text and <br> or ( text and <br> in <p> - paragraphs can be separated by new \r\n ).
if ( !data.match( /^([^<]|<br( ?\/)?>)*$/gi ) && !data.match( /^(<p>([^<]|<br( ?\/)?>)*<\/p>|(\r\n))*$/gi ) )
return 'html';
} else if ( CKEDITOR.env.gecko || CKEDITOR.env.opera ) {
// Text or <br>.
if ( !data.match( /^([^<]|<br( ?\/)?>)*$/gi ) )
return 'html';
} else
return 'html';
return 'htmlifiedtext';
}
// This function transforms what browsers produce when
// pasting plain text into editable element (see clipboard/paste.html TCs
// for more info) into correct HTML (similar to that produced by text2Html).
function htmlifiedTextHtmlification( config, data ) {
function repeatParagraphs( repeats ) {
// Repeat blocks floor((n+1)/2) times.
// Even number of repeats - add <br> at the beginning of last <p>.
return CKEDITOR.tools.repeat( '</p><p>', ~~ ( repeats / 2 ) ) + ( repeats % 2 == 1 ? '<br>' : '' );
}
// Replace adjacent white-spaces (EOLs too - Fx sometimes keeps them) with one space.
data = data.replace( /\s+/g, ' ' )
// Remove spaces from between tags.
.replace( /> +</g, '><' )
// Normalize XHTML syntax and upper cased <br> tags.
.replace( /<br ?\/>/gi, '<br>' );
// IE - lower cased tags.
data = data.replace( /<\/?[A-Z]+>/g, function( match ) {
return match.toLowerCase();
});
// Don't touch single lines (no <br|p|div>) - nothing to do here.
if ( data.match( /^[^<]$/ ) )
return data;
// Webkit.
if ( CKEDITOR.env.webkit && data.indexOf( '<div>' ) > -1 ) {
// One line break at the beginning - insert <br>
data = data.replace( /^(<div>(<br>|)<\/div>)(?!$|(<div>(<br>|)<\/div>))/g, '<br>' )
// Two or more - reduce number of new lines by one.
.replace( /^(<div>(<br>|)<\/div>){2}(?!$)/g, '<div></div>' );
// Two line breaks create one paragraph in Webkit.
if ( data.match( /<div>(<br>|)<\/div>/ ) ) {
data = '<p>' + data.replace( /(<div>(<br>|)<\/div>)+/g, function( match ) {
return repeatParagraphs( match.split( '</div><div>' ).length + 1 );
}) + '</p>';
}
// One line break create br.
data = data.replace( /<\/div><div>/g, '<br>' );
// Remove remaining divs.
data = data.replace( /<\/?div>/g, '' );
}
// Opera and Firefox and enterMode != BR.
if ( ( CKEDITOR.env.gecko || CKEDITOR.env.opera ) && config.enterMode != CKEDITOR.ENTER_BR ) {
// Remove bogus <br> - Fx generates two <brs> for one line break.
// For two line breaks it still produces two <brs>, but it's better to ignore this case than the first one.
if ( CKEDITOR.env.gecko )
data = data.replace( /^<br><br>$/, '<br>' );
// This line satisfy edge case when for Opera we have two line breaks
//data = data.replace( /)
if ( data.indexOf( '<br><br>' ) > -1 ) {
// Two line breaks create one paragraph, three - 2, four - 3, etc.
data = '<p>' + data.replace( /(<br>){2,}/g, function( match ) {
return repeatParagraphs( match.length / 4 );
}) + '</p>';
}
}
return switchEnterMode( config, data );
}
// Filter can be editor dependent.
function getTextificationFilter( editor ) {
var filter = new CKEDITOR.htmlParser.filter();
// Elements which creates vertical breaks (have vert margins) - took from HTML5 spec.
// http://dev.w3.org/html5/markup/Overview.html#toc
var replaceWithParaIf = { blockquote:1,dl:1,fieldset:1,h1:1,h2:1,h3:1,h4:1,h5:1,h6:1,ol:1,p:1,table:1,ul:1 },
// All names except of <br>.