` jQuery collection.
*
* @method
* @param {Function} callback
*/
ve.init.mw.ViewPageTarget.prototype.getSaveDialogHtml = function ( callback ) {
var viewPage = this,
$wrap = $( '
' ).html( this.constructor.saveDialogTemplate );
// Based on EditPage::getCheckboxes and EditPage::initialiseForm
mw.user.getRights( function ( rights ) {
// MediaWiki only allows usage of minor flag when editing an existing page
// and the user has the right to use the feature.
// If either is not the case, remove it from the form.
if ( !viewPage.pageExists || ve.indexOf( 'minoredit', rights ) === -1 ) {
$wrap
.find( '.ve-init-mw-viewPageTarget-saveDialog-minorEdit-label, #ve-init-mw-viewPageTarget-saveDialog-minorEdit' )
.remove();
}
if ( mw.user.isAnon() ) {
$wrap
.find( '.ve-init-mw-viewPageTarget-saveDialog-watchList-label, #ve-init-mw-viewPageTarget-saveDialog-watchList' )
.remove();
} else if (
mw.user.options.get( 'watchdefault' ) ||
( mw.user.options.get( 'watchcreations' ) && !viewPage.pageExists ) ||
mw.config.get( 'wgVisualEditor' ).isPageWatched
) {
$wrap
.find( '#ve-init-mw-viewPageTarget-saveDialog-watchList' )
.prop( 'checked', true );
}
callback( $wrap );
} );
};
/**
* Add content and event bindings to the save dialog.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.setupSaveDialog = function () {
var viewPage = this;
// Save button on "save" slide
this.saveDialogSaveButton = new ve.ui.ButtonWidget( {
'label': ve.msg(
// visualeditor-savedialog-label-restore, visualeditor-savedialog-label-save
'visualeditor-savedialog-label-' + ( viewPage.restoring ? 'restore' : 'save' )
),
'flags': ['constructive']
} );
this.saveDialogSaveButton.connect( this, { 'click': 'onSaveDialogSaveButtonClick' } );
// Review button on "save" slide
this.saveDialogReviewButton = new ve.ui.ButtonWidget( {
'label': ve.msg(
'visualeditor-savedialog-label-review'
)
} );
this.saveDialogReviewButton.connect( this, { 'click': 'onSaveDialogReviewButtonClick' } );
this.saveDialogReviewGoodButton = new ve.ui.ButtonWidget( {
'label': ve.msg( 'visualeditor-savedialog-label-review-good' ),
'flags': ['constructive']
} );
this.saveDialogReviewGoodButton.connect(
this, { 'click': 'onSaveDialogReviewGoodButtonClick' }
);
this.saveDialogResolveConflictButton = new ve.ui.ButtonWidget( {
'label': ve.msg( 'visualeditor-savedialog-label-resolve-conflict' ),
'flags': ['constructive']
} );
this.saveDialogResolveConflictButton.connect( this, { 'click': 'onSaveDialogResolveConflictButtonClick' } );
this.getSaveDialogHtml( function ( $wrap ) {
viewPage.$saveDialog
// Must not use replaceWith because that can't be used on fragement roots,
// plus, we want to preserve the reference and class names of the wrapper.
.empty().append( $wrap.contents() )
// Attach buttons
.find( '.ve-init-mw-viewPageTarget-saveDialog-slide-save' )
.find( '.ve-init-mw-viewPageTarget-saveDialog-actions' )
.prepend( viewPage.saveDialogSaveButton.$, viewPage.saveDialogReviewButton.$ )
.end()
.end()
.find( '.ve-init-mw-viewPageTarget-saveDialog-slide-review' )
.find( '.ve-init-mw-viewPageTarget-saveDialog-actions' )
.prepend( viewPage.saveDialogReviewGoodButton.$ )
.end()
.end()
.find( '.ve-init-mw-viewPageTarget-saveDialog-slide-conflict' )
.find( '.ve-init-mw-viewPageTarget-saveDialog-actions' )
.prepend( viewPage.saveDialogResolveConflictButton.$ )
.end()
.end()
.find( '.ve-init-mw-viewPageTarget-saveDialog-closeButton' )
.click( ve.bind( viewPage.onSaveDialogCloseButtonClick, viewPage ) )
.end()
.find( '.ve-init-mw-viewPageTarget-saveDialog-prevButton' )
.click( ve.bind( viewPage.onSaveDialogPrevButtonClick, viewPage ) )
.end()
// Attach contents
.find( '#ve-init-mw-viewPageTarget-saveDialog-editSummary' )
.attr( {
'placeholder': ve.msg( 'visualeditor-editsummary' )
} )
.placeholder()
.byteLimit( viewPage.editSummaryByteLimit )
.on( {
'focus': function () {
$( this ).parent().addClass(
've-init-mw-viewPageTarget-saveDialog-summary-focused'
);
},
'blur': function () {
$( this ).parent().removeClass(
've-init-mw-viewPageTarget-saveDialog-summary-focused'
);
},
'keyup keydown mouseup cut paste change focus blur': function () {
var $textarea = $( this ),
$editSummaryCount = $textarea
.closest( '.ve-init-mw-viewPageTarget-saveDialog-slide-save' )
.find( '.ve-init-mw-viewPageTarget-saveDialog-editSummaryCount' );
// TODO: This looks a bit weird, there is no unit in the UI, just numbers
// Users likely assume characters but then it seems to count down quicker
// than expected. Facing users with the word "byte" is bad? (bug 40035)
setTimeout( function () {
$editSummaryCount.text(
viewPage.editSummaryByteLimit - $.byteLength( $textarea.val() )
);
} );
}
} )
.end()
.find( '.ve-init-mw-viewPageTarget-saveDialog-editSummaryCount' )
.text( viewPage.editSummaryByteLimit )
.end()
.find( '.ve-init-mw-viewPageTarget-saveDialog-minorEdit-label' )
.html( ve.init.platform.getParsedMessage( 'minoredit' ) )
.find( 'a' )
.attr( 'target', '_blank' )
.end()
.end()
.find( '#ve-init-mw-viewPageTarget-saveDialog-minorEdit' )
.prop( 'checked', +mw.user.options.get( 'minordefault' ) )
.end()
.find( '.ve-init-mw-viewPageTarget-saveDialog-watchList-label' )
.html( ve.init.platform.getParsedMessage( 'watchthis' ) )
.end()
.find( '.ve-init-mw-viewPageTarget-saveDialog-license' )
.html( ve.init.platform.getParsedMessage( 'copyrightwarning' ) )
.end()
.find( '.ve-init-mw-viewPageTarget-saveDialog-conflict' )
.html( ve.init.platform.getParsedMessage( 'visualeditor-editconflict' ) )
.end()
.find( '.ve-init-mw-viewPageTarget-saveDialog-nochanges' )
.html( ve.init.platform.getParsedMessage( 'visualeditor-diff-nochanges' ) )
;
// Get reference to loading icon
viewPage.$saveDialogLoadingIcon = viewPage.$saveDialog
.find( '.ve-init-mw-viewPageTarget-saveDialog-working' );
} );
// Hook onto the 'watch' event on by mediawiki.page.watch.ajax.js
// Triggered when mw.page.watch.updateWatchLink(link, action) is called
$( '#ca-watch, #ca-unwatch' )
.on(
'watchpage.mw',
function ( e, action ) {
viewPage.$saveDialog
.find( '#ve-init-mw-viewPageTarget-saveDialog-watchList' )
.prop( 'checked', ( action === 'watch' ) );
}
);
};
/**
* Show the save dialog.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.showSaveDialog = function () {
var viewPage = this;
viewPage.surface.disable();
viewPage.$toolbarBetaNotice.fadeOut( 'fast' );
viewPage.$toolbarEditNotices.fadeOut( 'fast' );
viewPage.swapSaveDialog( 'save' );
viewPage.$saveDialog.fadeIn( 'fast', function () {
// Initial size
viewPage.onResizeSaveDialog();
} );
$( document ).on( 'keydown.ve-savedialog', function ( e ) {
// Escape
if ( e.which === ve.Keys.ESCAPE ) {
viewPage.onSaveDialogCloseButtonClick();
}
} );
$( window ).on( 'resize.ve-savedialog', ve.bind( viewPage.onResizeSaveDialog, viewPage ) );
};
/**
* Update window-size related aspects of the save dialog
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.onResizeSaveDialog = function () {
var $d = this.$saveDialog, $w = $( window );
// Available space for css-height is window height,
// without the space between the dialog and the window top,
// without the space above/below between css-height and outerHeight.
$d.css( 'max-height',
$w.height() -
( $d.offset().top - $w.scrollTop() ) -
( $d.outerHeight( true ) - $d.height() ) -
20 // shadow
);
};
/**
* Hide the save dialog
*/
ve.init.mw.ViewPageTarget.prototype.hideSaveDialog = function () {
// Reset history on close (bug 49481)
this.saveDialogSlideHistory.length = 0;
this.$saveDialog.fadeOut( 'fast' );
if ( this.$document ) {
this.$document.focus();
}
$( document ).off( 'keydown.ve-savedialog' );
$( window ).off( 'resize', this.onResizeSaveDialog );
if ( this.surface ) {
this.surface.enable();
}
};
/**
* Reset the fields of the save dialog.
*
* TODO: Maybe call this more cleverly only when the document changes, so that closing and
* re-opening the saveDialog doesn't remove the user input and the diff cache.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.resetSaveDialog = function () {
this.$saveDialog
.find( '#ve-init-mw-viewPageTarget-saveDialog-editSummary' )
.val( '' )
.end()
.find( '#ve-init-mw-viewPageTarget-saveDialog-minorEdit' )
.prop( 'checked', false )
.end()
// Clear the diff
.find( '.ve-init-mw-viewPageTarget-saveDialog-viewer' )
.empty();
};
/**
* Swap state in the save dialog.
*
* @method
* @param {string} slide One of 'save', 'review', 'conflict' or 'nochanges'
* @param {Object} [options]
* @param {boolean} [options.fromHistory] Whether this swap was triggered from interaction
* with the slide history (e.g. surpresses pushing of target slide in the history again).
* @returns {jQuery} The now active slide.
* @throws {Error} Unknown saveDialog slide
*/
ve.init.mw.ViewPageTarget.prototype.swapSaveDialog = function ( slide, options ) {
var $slide, $viewer,
doc = this.surface.getModel().getDocument();
if ( ve.indexOf( slide, [ 'save', 'review', 'conflict', 'nochanges' ] ) === -1 ) {
throw new Error( 'Unknown saveDialog slide: ' + slide );
}
options = options || {};
if ( !options.fromHistory ) {
this.saveDialogSlideHistory.push( slide );
}
$slide = this.$saveDialog.find( '.ve-init-mw-viewPageTarget-saveDialog-slide-' + slide );
this.$saveDialog
// Hide "prev" button when (back) on the first slide
.find( '.ve-init-mw-viewPageTarget-saveDialog-prevButton' )
.toggle( this.saveDialogSlideHistory.length >= 2 )
.end()
// Update title to one of:
// - visualeditor-savedialog-title-save
// - visualeditor-savedialog-title-review
// - visualeditor-savedialog-title-conflict
// - visualeditor-savedialog-title-nochanges
.find( '.ve-init-mw-viewPageTarget-saveDialog-title' )
.text( ve.msg( 'visualeditor-savedialog-title-' + slide ) )
.end()
// Hide other slides
.find( '.ve-init-mw-viewPageTarget-saveDialog-slide' )
.not( $slide )
.hide();
// Old warnings should not persist after slide changes
this.clearAllWarnings();
if ( slide === 'save' ) {
if ( !this.sanityCheckVerified ) {
this.showWarning( 'dirtywarning', ve.init.platform.getParsedMessage( 'visualeditor-savedialog-dirtywarning' ) );
}
}
if ( slide === 'review' ) {
this.sanityCheckVerified = true;
$viewer = $slide.find( '.ve-init-mw-viewPageTarget-saveDialog-viewer' );
if ( !$viewer.find( 'table, pre' ).length ) {
this.saveDialogReviewGoodButton.setDisabled( true );
this.$saveDialogLoadingIcon.show();
if ( this.pageExists ) {
// Has no callback, handled via target.onShowChanges
this.showChanges(
ve.dm.converter.getDomFromData( doc.getFullData(), doc.getStore(), doc.getInternalList() )
);
} else {
this.serialize(
ve.dm.converter.getDomFromData( doc.getFullData(), doc.getStore(), doc.getInternalList() ),
ve.bind( this.onSerialize, this )
);
}
}
this.$saveDialog.css( 'width', '100%' );
} else {
this.$saveDialog.css( 'width', '' );
}
// Show the target slide
$slide.show();
if ( slide === 'save' ) {
setTimeout( function () {
$slide.find( 'textarea' ).eq( 0 ).focus();
} );
}
return $slide;
};
/**
* Add the save dialog to the user interface.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.attachSaveDialog = function () {
this.surface.$globalOverlay.append(
this.$toolbarTracker.append(
this.$saveDialog
)
);
};
/**
* Remove the save dialog from the user interface.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.detachSaveDialog = function () {
this.$saveDialog.detach();
};
/**
* Remember the window's scroll position.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.saveScrollPosition = function () {
this.scrollTop = $( window ).scrollTop();
};
/**
* Restore the window's scroll position.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.restoreScrollPosition = function () {
if ( this.scrollTop ) {
$( window ).scrollTop( this.scrollTop );
this.scrollTop = null;
}
};
/**
* Show the loading spinner.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.showSpinner = function () {
$( '#firstHeading' ).prepend( this.$spinner );
};
/**
* Hide the loading spinner.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.hideSpinner = function () {
this.$spinner.detach();
};
/**
* Show the page content.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.showPageContent = function () {
$( '#bodyContent > .ve-init-mw-viewPageTarget-content' )
.removeClass( 've-init-mw-viewPageTarget-content' )
.show()
.fadeTo( 0, 1 );
};
/**
* Mute the page content.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.mutePageContent = function () {
$( '#bodyContent > :visible:not(#siteSub, #contentSub)' )
.addClass( 've-init-mw-viewPageTarget-content' )
.fadeTo( 'fast', 0.6 );
};
/**
* Hide the page content.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.hidePageContent = function () {
$( '#bodyContent > :visible:not(#siteSub, #contentSub)' )
.addClass( 've-init-mw-viewPageTarget-content' )
.hide();
};
/**
* Show the table of contents in the view mode.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.showTableOfContents = function () {
var $toc = $( '#toc' ),
$wrap = $toc.parent();
if ( $wrap.data( 've.hideTableOfContents' ) ) {
$wrap.slideDown( function () {
$toc.unwrap();
} );
}
};
/**
* Hide the table of contents in the view mode.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.hideTableOfContents = function () {
$( '#toc' )
.wrap( '
' )
.parent()
.data( 've.hideTableOfContents', true )
.slideUp();
};
/**
* Show the toolbar.
*
* This also transplants the toolbar to a new location.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.setUpToolbar = function () {
this.toolbar = new ve.ui.Toolbar( this.surface, { 'shadow': true, 'actions': true } );
this.toolbar.addTools( this.constructor.static.toolbarTools );
this.surface.addCommands( this.constructor.static.surfaceCommands );
if ( !this.isMobileDevice ) {
this.toolbar.enableFloating();
}
this.toolbar.$
.addClass( 've-init-mw-viewPageTarget-toolbar' )
.insertBefore( '#firstHeading' );
this.toolbar.$bar.slideDown( 'fast', ve.bind( function () {
// Check the surface wasn't torn down while the toolbar was animating
if ( this.surface ) {
this.surface.getContext().update();
// Emit event for initial position. Must be done here after the
// slide down instead of in ve.ui.Toolbar#constructor because
// back there it'll still be out of view.
this.surface.emit( 'toolbarPosition', this.toolbar.$bar );
}
}, this ) );
};
/**
* Hide the toolbar.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.tearDownToolbar = function () {
this.toolbar.$bar.slideUp( 'fast', ve.bind( function () {
this.toolbar.destroy();
this.toolbar = null;
}, this ) );
};
/**
* Transform the page title into a VE-style title.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.transformPageTitle = function () {
$( '#firstHeading' ).addClass( 've-init-mw-viewPageTarget-pageTitle' );
};
/**
* Fade the page title to indicate it is not editable.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.mutePageTitle = function () {
$( '#firstHeading, #siteSub:visible, #contentSub:visible' ).fadeTo( 'fast', 0.6 );
};
/**
* Restore the page title to its original style.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.restorePageTitle = function () {
$( '#firstHeading, #siteSub:visible, #contentSub:visible' ).fadeTo( 'fast', 1 );
setTimeout( function () {
$( '#firstHeading' ).removeClass( 've-init-mw-viewPageTarget-pageTitle' );
}, 1000 );
};
/**
* Change the document title to state that we are now editing.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.changeDocumentTitle = function () {
document.title = ve.msg(
this.pageExists ? 'editing' : 'creating',
mw.config.get( 'wgTitle' )
) + ' - ' + mw.config.get( 'wgSiteName' );
};
/**
* Restore the original document title.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.restoreDocumentTitle = function () {
document.title = this.originalDocumentTitle;
};
/**
* Page modifications for switching to edit mode.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.transformPage = function () {
var uri;
// Put skin tabs in "edit" mode
$( $( '#p-views' ).length ? '#p-views' : '#p-cactions' )
.find( 'li.selected' ).removeClass( 'selected' );
$( this.tabLayout === 'add' ? '#ca-ve-edit' : '#ca-edit' )
.addClass( 'selected' );
// Hide site notice (if present)
$( '#siteNotice:visible' )
.addClass( 've-hide' )
.slideUp( 'fast' );
// Push veaction=edit url in history (if not already. If we got here by a veaction=edit
// permalink then it will be there already and the constructor called #activate)
if ( !this.actFromPopState && window.history.pushState && this.currentUri.query.veaction !== 'edit' ) {
// Set the veaction query parameter
uri = this.currentUri;
uri.query.veaction = 'edit';
window.history.pushState( null, document.title, uri );
}
this.actFromPopState = false;
};
/**
* Page modifications for switching back to view mode.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.restorePage = function () {
var uri;
// Put skin tabs back in "view" mode
$( $( '#p-views' ).length ? '#p-views' : '#p-cactions' )
.find( 'li.selected' ).removeClass( 'selected' );
$( '#ca-view' ).addClass( 'selected' );
// Make site notice visible again (if present)
$( '#siteNotice.ve-hide' )
.slideDown( 'fast' );
// Push non-veaction=edit url in history
if ( !this.actFromPopState && window.history.pushState ) {
// Remove the veaction query parameter
uri = this.currentUri;
if ( 'veaction' in uri.query ) {
delete uri.query.veaction;
}
// If there are other query parameters, set the url to the current url (with veaction removed).
// Otherwise use the canonical style view url (bug 42553).
if ( ve.getObjectValues( uri.query ).length ) {
window.history.pushState( null, document.title, uri );
} else {
window.history.pushState( null, document.title, this.viewUri );
}
}
this.actFromPopState = false;
};
/**
* @param {Event} e Native event object
*/
ve.init.mw.ViewPageTarget.prototype.onWindowPopState = function () {
var newUri = this.currentUri = new mw.Uri( document.location.href );
if ( !this.active && newUri.query.veaction === 'edit' ) {
this.actFromPopState = true;
this.activate();
}
if ( this.active && newUri.query.veaction !== 'edit' ) {
this.actFromPopState = true;
this.deactivate();
}
};
/**
* Replace the page content with new HTML.
*
* @method
* @param {HTMLElement} html Rendered HTML from server
*/
ve.init.mw.ViewPageTarget.prototype.replacePageContent = function ( html ) {
$( '#mw-content-text' ).html( html );
};
/**
* Get the numeric index of a section in the page.
*
* @method
* @param {HTMLElement} heading Heading element of section
*/
ve.init.mw.ViewPageTarget.prototype.getEditSection = function ( heading ) {
var $page = $( '#mw-content-text' ),
section = 0;
$page.find( 'h1, h2, h3, h4, h5, h6' ).not( '#toc h2' ).each( function () {
section++;
if ( this === heading ) {
return false;
}
} );
return section;
};
/**
* Get the numeric index of a section in the page.
*
* @method
* @param {HTMLElement} heading Heading element of section
*/
ve.init.mw.ViewPageTarget.prototype.saveEditSection = function ( heading ) {
this.section = this.getEditSection( heading );
};
/**
* Move the cursor in the editor to a given section.
*
* @method
* @param {number} section Section to move cursor to
*/
ve.init.mw.ViewPageTarget.prototype.restoreEditSection = function () {
if ( this.section !== null ) {
var offset,
target = this,
surfaceView = this.surface.getView(),
surfaceModel = surfaceView.getModel();
this.$document.find( 'h1, h2, h3, h4, h5, h6' ).eq( this.section - 1 ).each( function () {
var offsetNode, nextNode,
headingNode = $( this ).data( 'view' ),
lastHeadingLevel = -1;
if ( headingNode ) {
// Find next sibling which isn't a heading
offsetNode = headingNode;
while ( offsetNode instanceof ve.ce.HeadingNode && offsetNode.getModel().getAttribute( 'level' ) > lastHeadingLevel ) {
lastHeadingLevel = offsetNode.getModel().getAttribute( 'level' );
// Next sibling
nextNode = offsetNode.parent.children[ve.indexOf( offsetNode, offsetNode.parent.children ) + 1];
if ( !nextNode ) {
break;
}
offsetNode = nextNode;
}
offset = surfaceModel.getDocument().data.getNearestContentOffset(
offsetNode.getModel().getOffset(), 1
);
surfaceModel.change( null, new ve.Range( offset ) );
// Scroll to heading:
// Wait for toolbar to animate in so we can account for its height
setTimeout( function () {
var $window = $( ve.Element.static.getWindow( target.$ ) );
$window.scrollTop( headingNode.$.offset().top - target.toolbar.$.height() );
}, 200 );
}
} );
this.section = null;
}
};
/**
* Show an inline warning.
* @param {string} name Warning's unique name
* @param {string|jQuery} message Warning message (string of HTML, not text, or jQuery object)
* @param {Object} [options]
* @param {boolean} [options.wrap=true] Wrap the message in a paragraph.
*/
ve.init.mw.ViewPageTarget.prototype.showWarning = function ( name, message, options ) {
var $warning;
if ( !this.warnings[name] ) {
options = options || {};
$warning = $( '
' );
if ( options.wrap !== false ) {
$warning.append( $( '
').append( message ) );
} else {
$warning.append( message );
}
this.$saveDialog.find( '.ve-init-mw-viewPageTarget-saveDialog-warnings' )
.append( $warning );
this.warnings[name] = $warning;
}
};
/**
* Remove an inline warning.
* @param {string} name Warning's unique name
*/
ve.init.mw.ViewPageTarget.prototype.clearWarning = function ( name ) {
if ( this.warnings[name] ) {
this.warnings[name].remove();
delete this.warnings[name];
}
};
/**
* Remove all inline warnings.
*/
ve.init.mw.ViewPageTarget.prototype.clearAllWarnings = function () {
this.$saveDialog
.find( '.ve-init-mw-viewPageTarget-saveDialog-warnings' )
.empty();
this.warnings = {};
};
/**
* Add onbeforunload handler.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.setupBeforeUnloadHandler = function () {
// Remember any already set on before unload handler
this.onBeforeUnloadFallback = window.onbeforeunload;
// Attach before unload handler
window.onbeforeunload = this.onBeforeUnloadHandler = ve.bind( this.onBeforeUnload, this );
// Attach page show handlers
if ( window.addEventListener ) {
window.addEventListener( 'pageshow', ve.bind( this.onPageShow, this ), false );
} else if ( window.attachEvent ) {
window.attachEvent( 'pageshow', ve.bind( this.onPageShow, this ) );
}
};
/**
* Remove onbeforunload handler.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.tearDownBeforeUnloadHandler = function () {
// Restore whatever previous onbeforeload hook existed
window.onbeforeunload = this.onBeforeUnloadFallback;
};
/**
* Handle page show event.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.onPageShow = function () {
// Re-add onbeforeunload handler
window.onbeforeunload = this.onBeforeUnloadHandler;
};
/**
* Handle before unload event.
*
* @method
*/
ve.init.mw.ViewPageTarget.prototype.onBeforeUnload = function () {
var fallbackResult,
message,
onBeforeUnloadHandler = this.onBeforeUnloadHandler;
// Check if someone already set on onbeforeunload hook
if ( this.onBeforeUnloadFallback ) {
// Get the result of their onbeforeunload hook
fallbackResult = this.onBeforeUnloadFallback();
}
// Check if their onbeforeunload hook returned something
if ( fallbackResult !== undefined ) {
// Exit here, returning their message
message = fallbackResult;
} else {
// Override if submitting
if ( this.submitting ) {
return null;
}
// Check if there's been an edit
if ( this.surface && this.edited ) {
// Return our message
message = ve.msg( 'visualeditor-viewpage-savewarning' );
}
}
// Unset the onbeforeunload handler so we don't break page caching in Firefox
window.onbeforeunload = null;
if ( message !== undefined ) {
// ...but if the user chooses not to leave the page, we need to rebind it
setTimeout( function () {
window.onbeforeunload = onBeforeUnloadHandler;
} );
return message;
}
};
/* Initialization */
ve.init.mw.targets.push( new ve.init.mw.ViewPageTarget() );