GOOGLE
/*
Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/
/**
* @file Clipboard support
*/
(function()
{
// Tries to execute any of the paste, cut or copy commands in IE. Returns a
// boolean indicating that the operation succeeded.
var execIECommand = function( editor, command )
{
var doc = editor.document,
body = doc.getBody();
var enabled = false;
var 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.$.selection.createRange() ) [ 'execCommand' ]( command );
body.removeListener( command, onExec );
return enabled;
};
// Attempts to execute the Cut and Copy operations.
var tryToCutCopy =
CKEDITOR.env.ie ?
function( editor, type )
{
return execIECommand( editor, type );
}
: // !IE.
function( editor, type )
{
try
{
// Other browsers throw an error if the command is disabled.
return editor.document.$.execCommand( type, false, null );
}
catch( e )
{
return false;
}
};
// A class that represents one of the cut or copy commands.
var cutCopyCmd = function( type )
{
this.type = type;
this.canUndo = this.type == 'cut'; // We can't undo copy to clipboard.
this.startDisabled = true;
};
cutCopyCmd.prototype =
{
exec : function( editor, data )
{
this.type == 'cut' && fixCut( editor );
var success = tryToCutCopy( editor, this.type );
if ( !success )
alert( editor.lang.clipboard[ this.type + 'Error' ] ); // Show cutError or copyError.
return success;
}
};
// Paste command.
var pasteCmd =
{
canUndo : false,
exec :
CKEDITOR.env.ie ?
function( editor )
{
// Prevent IE from pasting at the begining of the document.
editor.focus();
if ( !editor.document.getBody().fire( 'beforepaste' )
&& !execIECommand( editor, 'paste' ) )
{
editor.fire( 'pasteDialog' );
return false;
}
}
:
function( editor )
{
try
{
if ( !editor.document.getBody().fire( 'beforepaste' )
&& !editor.document.$.execCommand( 'Paste', false, null ) )
{
throw 0;
}
}
catch ( e )
{
setTimeout( function()
{
editor.fire( 'pasteDialog' );
}, 0 );
return false;
}
}
};
// Listens for some clipboard related keystrokes, so they get customized.
var onKey = function( event )
{
if ( this.mode != 'wysiwyg' )
return;
switch ( event.data.keyCode )
{
// Paste
case CKEDITOR.CTRL + 86 : // CTRL+V
case CKEDITOR.SHIFT + 45 : // SHIFT+INS
var body = this.document.getBody();
// Simulate 'paste' event for Opera/Firefox2.
if ( CKEDITOR.env.opera
|| CKEDITOR.env.gecko && CKEDITOR.env.version < 10900 )
body.fire( 'paste' );
return;
// Cut
case CKEDITOR.CTRL + 88 : // CTRL+X
case CKEDITOR.SHIFT + 46 : // SHIFT+DEL
// Save Undo snapshot.
var editor = this;
this.fire( 'saveSnapshot' ); // Save before paste
setTimeout( function()
{
editor.fire( 'saveSnapshot' ); // Save after paste
}, 0 );
}
};
function cancel( evt ) { evt.cancel(); }
// Allow to peek clipboard content by redirecting the
// pasting content into a temporary bin and grab the content of it.
function getClipboardData( evt, mode, callback )
{
var doc = this.document;
// Avoid recursions on 'paste' event or consequent paste too fast. (#5730)
if ( doc.getById( 'cke_pastebin' ) )
return;
// If the browser supports it, get the data directly
if ( mode == 'text' && evt.data && evt.data.$.clipboardData )
{
// evt.data.$.clipboardData.types contains all the flavours in Mac's Safari, but not on windows.
var plain = evt.data.$.clipboardData.getData( 'text/plain' );
if ( plain )
{
evt.data.preventDefault();
callback( plain );
return;
}
}
var sel = this.getSelection(),
range = new CKEDITOR.dom.range( doc );
// Create container to paste into
var pastebin = new CKEDITOR.dom.element( mode == 'text' ? 'textarea' : CKEDITOR.env.webkit ? 'body' : 'div', doc );
pastebin.setAttribute( 'id', 'cke_pastebin' );
// Safari requires a filler node inside the div to have the content pasted into it. (#4882)
CKEDITOR.env.webkit && pastebin.append( doc.createText( '\xa0' ) );
doc.getBody().append( pastebin );
pastebin.setStyles(
{
position : 'absolute',
// Position the bin exactly at the position of the selected element
// to avoid any subsequent document scroll.
top : sel.getStartElement().getDocumentPosition().y + 'px',
width : '1px',
height : '1px',
overflow : 'hidden'
});
// It's definitely a better user experience if we make the paste-bin pretty unnoticed
// by pulling it off the screen.
pastebin.setStyle( this.config.contentsLangDirection == 'ltr' ? 'left' : 'right', '-1000px' );
var bms = sel.createBookmarks();
this.on( 'selectionChange', cancel, null, null, 0 );
// Turn off design mode temporarily before give focus to the paste bin.
if ( mode == 'text' )
pastebin.$.focus();
else
{
range.setStartAt( pastebin, CKEDITOR.POSITION_AFTER_START );
range.setEndAt( pastebin, CKEDITOR.POSITION_BEFORE_END );
range.select( true );
}
var editor = this;
// Wait a while and grab the pasted contents
window.setTimeout( function()
{
// Restore properly the document focus. (#5684, #8849)
editor.document.getBody().focus();
editor.removeListener( 'selectionChange', cancel );
// 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;
pastebin = ( CKEDITOR.env.webkit
&& ( bogusSpan = pastebin.getFirst() )
&& ( bogusSpan.is && bogusSpan.hasClass( 'Apple-style-span' ) ) ?
bogusSpan : pastebin );
// IE7: selection must go before removing paste. (#8691)
sel.selectBookmarks( bms );
pastebin.remove();
callback( pastebin[ 'get' + ( mode == 'text' ? 'Value' : 'Html' ) ]() );
}, 0 );
}
// Cutting off control type element in IE standards breaks the selection entirely. (#4881)
function fixCut( editor )
{
if ( !CKEDITOR.env.ie || CKEDITOR.env.quirks )
return;
var sel = editor.getSelection();
var control;
if( ( sel.getType() == CKEDITOR.SELECTION_ELEMENT ) && ( control = sel.getSelectedElement() ) )
{
var range = sel.getRanges()[ 0 ];
var 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 );
}
}
var depressBeforeEvent;
function stateFromNamedCommand( command, editor )
{
// 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 && ( depressBeforeEvent = 1 );
var retval = CKEDITOR.TRISTATE_OFF;
try { retval = editor.document.$.queryCommandEnabled( command ) ? CKEDITOR.TRISTATE_OFF : CKEDITOR.TRISTATE_DISABLED; }catch( er ){}
depressBeforeEvent = 0;
return retval;
}
var inReadOnly;
function setToolbarStates()
{
if ( this.mode != 'wysiwyg' )
return;
this.getCommand( 'cut' ).setState( inReadOnly ? CKEDITOR.TRISTATE_DISABLED : stateFromNamedCommand( 'Cut', this ) );
this.getCommand( 'copy' ).setState( stateFromNamedCommand( 'Copy', this ) );
var pasteState = inReadOnly ? CKEDITOR.TRISTATE_DISABLED :
CKEDITOR.env.webkit ? CKEDITOR.TRISTATE_OFF : stateFromNamedCommand( 'Paste', this );
this.fire( 'pasteState', pasteState );
}
// Register the plugin.
CKEDITOR.plugins.add( 'clipboard',
{
requires : [ 'dialog', 'htmldataprocessor' ],
init : function( editor )
{
// Inserts processed data into the editor at the end of the
// events chain.
editor.on( 'paste', function( evt )
{
var data = evt.data;
if ( data[ 'html' ] )
editor.insertHtml( data[ 'html' ] );
else if ( data[ 'text' ] )
editor.insertText( data[ 'text' ] );
setTimeout( function () { editor.fire( 'afterPaste' ); }, 0 );
}, null, null, 1000 );
editor.on( 'pasteDialog', function( evt )
{
setTimeout( function()
{
// Open default paste dialog.
editor.openDialog( 'paste' );
}, 0 );
});
editor.on( 'pasteState', function( evt )
{
editor.getCommand( 'paste' ).setState( evt.data );
});
function addButtonCommand( buttonName, commandName, command, ctxMenuOrder )
{
var lang = editor.lang[ commandName ];
editor.addCommand( commandName, command );
editor.ui.addButton( buttonName,
{
label : lang,
command : commandName
});
// If the "menu" plugin is loaded, register the menu item.
if ( editor.addMenuItems )
{
editor.addMenuItem( commandName,
{
label : lang,
command : commandName,
group : 'clipboard',
order : ctxMenuOrder
});
}
}
addButtonCommand( 'Cut', 'cut', new cutCopyCmd( 'cut' ), 1 );
addButtonCommand( 'Copy', 'copy', new cutCopyCmd( 'copy' ), 4 );
addButtonCommand( 'Paste', 'paste', pasteCmd, 8 );
CKEDITOR.dialog.add( 'paste', CKEDITOR.getUrl( this.path + 'dialogs/paste.js' ) );
editor.on( 'key', onKey, editor );
// We'll be catching all pasted content in one line, regardless of whether the
// it's introduced by a document command execution (e.g. toolbar buttons) or
// user paste behaviors. (e.g. Ctrl-V)
editor.on( 'contentDom', function()
{
var body = editor.document.getBody();
// Intercept the paste before it actually takes place.
body.on( !CKEDITOR.env.ie ? 'paste' : 'beforepaste', function( evt )
{
if ( depressBeforeEvent )
return;
// Dismiss the (wrong) 'beforepaste' event fired on toolbar menu open.
var domEvent = evt.data && evt.data.$;
if ( CKEDITOR.env.ie && domEvent && !domEvent.ctrlKey )
return;
// Fire 'beforePaste' event so clipboard flavor get customized
// by other plugins.
var eventData = { mode : 'html' };
editor.fire( 'beforePaste', eventData );
getClipboardData.call( editor, evt, eventData.mode, function ( data )
{
// The very last guard to make sure the
// paste has successfully happened.
if ( !( data = CKEDITOR.tools.trim( data.replace( /<span[^>]+data-cke-bookmark[^<]*?<\/span>/ig,'' ) ) ) )
return;
var dataTransfer = {};
dataTransfer[ eventData.mode ] = data;
editor.fire( 'paste', dataTransfer );
} );
});
if ( CKEDITOR.env.ie )
{
// Dismiss the (wrong) 'beforepaste' event fired on context menu open. (#7953)
body.on( 'contextmenu', function()
{
depressBeforeEvent = 1;
// Important: The following timeout will be called only after menu closed.
setTimeout( function() { depressBeforeEvent = 0; }, 0 );
} );
// Handle IE's late coming "paste" event when pasting from
// browser toolbar/context menu.
body.on( 'paste', function( evt )
{
if ( !editor.document.getById( 'cke_pastebin' ) )
{
// Prevent native paste.
evt.data.preventDefault();
depressBeforeEvent = 0;
// Resort to the paste command.
pasteCmd.exec( editor );
}
} );
}
body.on( 'beforecut', function() { !depressBeforeEvent && fixCut( editor ); } );
body.on( 'mouseup', function(){ setTimeout( function(){ setToolbarStates.call( editor ); }, 0 ); }, editor );
body.on( 'keyup', setToolbarStates, editor );
});
// 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.call( editor );
});
// If the "contextmenu" plugin is loaded, register the listeners.
if ( editor.contextMenu )
{
editor.contextMenu.addListener( function( element, selection )
{
var readOnly = selection.getRanges()[ 0 ].checkReadOnly();
return {
cut : !readOnly && stateFromNamedCommand( 'Cut', editor ),
copy : stateFromNamedCommand( 'Copy', editor ),
paste : !readOnly && ( CKEDITOR.env.webkit ? CKEDITOR.TRISTATE_OFF : stateFromNamedCommand( 'Paste', editor ) )
};
});
}
}
});
})();
/**
* Fired when a clipboard operation is about to be taken into the editor.
* Listeners can manipulate the data to be pasted before having it effectively
* inserted into the document.
* @name CKEDITOR.editor#paste
* @since 3.1
* @event
* @param {String} [data.html] The HTML data to be pasted. If not available, e.data.text will be defined.
* @param {String} [data.text] The plain text data to be pasted, available when plain text operations are to used. If not available, e.data.html will be defined.
*/
/**
* Internal event to open the Paste dialog
* @name CKEDITOR.editor#pasteDialog
* @event
*/
Copyright © 1945 -