/*! * VisualEditor MediaWiki Initialization ViewPageTarget class. * * @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt * @license The MIT License (MIT); see LICENSE.txt */ /*global mw, confirm, alert */ /** * Initialization MediaWiki view page target. * * @class * @extends ve.init.mw.Target * * @constructor */ ve.init.mw.ViewPageTarget = function VeInitMwViewPageTarget() { var currentUri = new mw.Uri( window.location.toString() ); // Parent constructor ve.init.mw.Target.call( this, $( '#content' ), mw.config.get( 'wgRelevantPageName' ), currentUri.query.oldid ); // Properties this.$document = null; this.$spinner = $( '
' ); this.toolbarCancelButton = null; this.toolbarSaveButton = null; this.saveDialogSaveButton = null; this.saveDialogReviewWrongButton = null; this.saveDialogReviewGoodButton = null; this.saveDialogReportButton = null; this.$toolbarEditNotices = $( '
' ).addClass( 've-init-mw-viewPageTarget-toolbar-editNotices' ); this.$toolbarEditNoticesTool = $( '
' ).addClass( 've-init-mw-viewPageTarget-tool' ); this.$toolbarFeedbackTool = $( '
' ).addClass( 've-init-mw-viewPageTarget-tool' ); this.$saveDialog = $( '
' ).addClass( 've-init-mw-viewPageTarget-saveDialog' ); this.onBeforeUnloadFallback = null; this.onBeforeUnloadHandler = null; this.active = false; this.edited = false; this.activating = false; this.deactivating = false; this.scrollTop = null; this.currentUri = currentUri; this.restoring = this.oldid !== mw.config.get( 'wgCurRevisionId' ); this.section = currentUri.query.vesection || null; this.namespaceName = mw.config.get( 'wgCanonicalNamespace' ); this.viewUri = new mw.Uri( mw.util.wikiGetlink( this.pageName ) ); this.veEditUri = this.viewUri.clone().extend( { 'veaction': 'edit' } ); this.isViewPage = ( mw.config.get( 'wgAction' ) === 'view' && currentUri.query.diff === undefined ); this.canBeActivated = ( $.client.test( ve.init.mw.ViewPageTarget.compatibility ) || 'vewhitelist' in currentUri.query ); this.editSummaryByteLimit = 255; // Tab layout. // * add: Adds #ca-ve-edit. // * replace: Re-creates #ca-edit for VisualEditor and adds #ca-editsource. this.tabLayout = 'replace'; this.feedback = new mw.Feedback( { 'title': new mw.Title( ve.msg( 'visualeditor-feedback-link' ) ), 'bugsLink': new mw.Uri( 'https://bugzilla.wikimedia.org/enter_bug.cgi?product=VisualEditor&component=General' ), 'bugsListLink': new mw.Uri( 'https://bugzilla.wikimedia.org/buglist.cgi?query_format=advanced&resolution=---&resolution=LATER&resolution=DUPLICATE&product=VisualEditor&list_id=166234' ) } ); // Events this.connect( this, { 'load': 'onLoad', 'save': 'onSave', 'loadError': 'onLoadError', 'saveError': 'onSaveError', 'editConflict': 'onEditConflict', 'showChanges': 'onShowChanges', 'showChangesError': 'onShowChangesError', 'noChanges': 'onNoChanges', 'serializeError': 'onSerializeError' } ); // Initialization if ( this.canBeActivated ) { if ( currentUri.query.venotify ) { // The following messages can be used here: // visualeditor-notification-saved // visualeditor-notification-created // visualeditor-notification-restored mw.notify( ve.msg( 'visualeditor-notification-' + currentUri.query.venotify, new mw.Title( this.pageName ).toText() ) ); if ( window.history.replaceState ) { delete currentUri.query.venotify; window.history.replaceState( null, document.title, currentUri ); } } this.setupSkinTabs(); if ( mw.config.get( 'wgVisualEditorConfig' ).enableSectionEditLinks ) { this.setupSectionEditLinks(); } if ( this.isViewPage ) { if ( currentUri.query.veaction === 'edit' ) { this.activate(); } } } }; /* Inheritance */ ve.inheritClass( ve.init.mw.ViewPageTarget, ve.init.mw.Target ); /* Static Properties */ /** * Compatibility map used with jQuery.client to black-list incompatible browsers. * * @static * @property */ ve.init.mw.ViewPageTarget.compatibility = { // Left-to-right languages ltr: { msie: [['>=', 9]], firefox: [['>=', 11]], iceweasel: [['>=', 10]], safari: [['>=', 5]], chrome: [['>=', 19]], opera: false, netscape: false, blackberry: false }, // Right-to-left languages rtl: { msie: [['>=', 9]], firefox: [['>=', 11]], iceweasel: [['>=', 10]], safari: [['>=', 5]], chrome: [['>=', 19]], opera: false, netscape: false, blackberry: false } }; ve.init.mw.ViewPageTarget.static.toolbarTools = [ { 'name': 'history', 'items' : ['undo', 'redo'] }, { 'name': 'textStyle', 'items' : ['mwFormat'] }, { 'name': 'textStyle', 'items' : ['bold', 'italic', 'mwLink', 'clear'] }, { 'name': 'list', 'items' : ['number', 'bullet', 'outdent', 'indent'] } ]; ve.init.mw.ViewPageTarget.static.surfaceCommands = [ 'bold', 'italic', 'mwLink', 'undo', 'redo', 'indent', 'outdent' ]; // TODO: Accessibility tooltips and logical tab order for prevButton and closeButton. ve.init.mw.ViewPageTarget.saveDialogTemplate = '\
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'; /* Methods */ /** * Switch to edit mode. * * @method */ ve.init.mw.ViewPageTarget.prototype.activate = function () { if ( !this.active && !this.activating ) { this.activating = true; // User interface changes this.transformSkinTabs(); this.hideSiteNotice(); this.showSpinner(); this.hideTableOfContents(); this.mutePageContent(); this.mutePageTitle(); this.saveScrollPosition(); this.load(); } }; /** * Switch to view mode. * * @method */ ve.init.mw.ViewPageTarget.prototype.deactivate = function ( override ) { if ( override || ( this.active && !this.deactivating ) ) { if ( override || !this.edited || confirm( ve.msg( 'visualeditor-viewpage-savewarning' ) ) ) { this.deactivating = true; // User interface changes this.restoreSkinTabs(); this.restoreSiteNotice(); this.hideSpinner(); if ( this.toolbarCancelButton ) { // If deactivate is called before a successful load, then // setupToolbarButtons has not been called yet and as such tearDownToolbarButtons // would throw an error when trying call methods on the button property (bug 46456) this.tearDownToolbarButtons(); this.detachToolbarButtons(); } this.resetSaveDialog(); this.hideSaveDialog(); this.detachSaveDialog(); this.tearDownSurface(); this.showTableOfContents(); this.deactivating = false; } } }; /** * Handle successful DOM load event. * * @method * @param {HTMLDocument} doc Parsed DOM from server */ ve.init.mw.ViewPageTarget.prototype.onLoad = function ( doc ) { if ( this.activating ) { this.edited = false; this.doc = doc; this.setUpSurface( doc ); this.setupToolbarEditNotices(); this.setupToolbarButtons(); this.setupSaveDialog(); this.attachToolbarButtons(); this.attachSaveDialog(); this.restoreScrollPosition(); this.restoreEditSection(); this.setupBeforeUnloadHandler(); this.$document.focus(); this.activating = false; } }; /** * Handle failed DOM load event. * * @method * @param {Object} data HTTP Response object * @param {string} status Text status message * @param {Mixed} error Thrown exception or HTTP error string */ ve.init.mw.ViewPageTarget.prototype.onLoadError = function ( response, status ) { if ( confirm( ve.msg( 'visualeditor-loadwarning', status ) ) ) { this.load(); } else { this.activating = false; // User interface changes this.deactivate( true ); } }; /** * Handle successful DOM save event. * * @method * @param {HTMLElement} html Rendered HTML from server * @param {number} [newid] New revision id, undefined if unchanged */ ve.init.mw.ViewPageTarget.prototype.onSave = function ( html, newid ) { if ( !this.pageExists || this.restoring ) { // This is a page creation or restoration, refresh the page this.tearDownBeforeUnloadHandler(); window.location.href = this.viewUri.extend( { 'venotify': this.restoring ? 'restored' : 'created' } ); } else { // Update watch link to match 'watch checkbox' in save dialog. // User logged in if module loaded. // Just checking for mw.page.watch is not enough because in Firefox // there is Object.prototype.watch... if ( mw.page.watch && mw.page.watch.updateWatchLink ) { var watchChecked = this.$saveDialog .find( '#ve-init-mw-viewPageTarget-saveDialog-watchList') .prop( 'checked' ); mw.page.watch.updateWatchLink( $( '#ca-watch a, #ca-unwatch a' ), watchChecked ? 'unwatch': 'watch' ); } if ( newid !== undefined ) { this.oldid = newid; } this.hideSaveDialog(); this.resetSaveDialog(); this.replacePageContent( html ); this.tearDownBeforeUnloadHandler(); this.deactivate( true ); mw.util.jsMessage( ve.msg( 'visualeditor-notification-saved', new mw.Title( this.pageName ).toText() ) ); } }; /** * Handle failed DOM save event. * * @method * @param {Object} jqXHR * @param {string} status Text status message * @param {Mixed} error Thrown exception or HTTP error string */ ve.init.mw.ViewPageTarget.prototype.onSaveError = function ( jqXHR, status ) { // TODO: Don't use alert. alert( ve.msg( 'visualeditor-saveerror', status ) ); this.saveDialogSaveButton.setDisabled( false ); this.$saveDialogLoadingIcon.hide(); }; /** * Handle Show changes event. * * @method * @param {string} diffHtml */ ve.init.mw.ViewPageTarget.prototype.onShowChanges = function ( diffHtml ) { // Invalidate the viewer diff on next change this.surface.getModel().connect( this, { 'transact': 'onSurfaceModelTransact' } ); // Store the diff for reporting purposes this.diffHtml = diffHtml; mw.loader.using( 'mediawiki.action.history.diff', ve.bind( function () { this.$saveDialog .find( '.ve-init-mw-viewPageTarget-saveDialog-viewer' ) .empty().append( diffHtml ); this.$saveDialogLoadingIcon.hide(); this.saveDialogReviewGoodButton.setDisabled( false ); this.saveDialogReviewWrongButton.setDisabled( false ); }, this ), ve.bind( function () { this.onSaveError( null, 'Module load failed' ); }, this ) ); }; /** * Handle Serialize event. * * @method * @param {string} wikitext */ ve.init.mw.ViewPageTarget.prototype.onSerialize = function ( wikitext ) { // Invalidate the viewer wikitext on next change this.surface.getModel().connect( this, { 'transact': 'onSurfaceModelTransact' } ); this.$saveDialog .find( '.ve-init-mw-viewPageTarget-saveDialog-viewer' ) .empty().append( $( '
' ).text( wikitext ) );

		this.$saveDialogLoadingIcon.hide();
		this.saveDialogReviewGoodButton.setDisabled( false );
		this.saveDialogReviewWrongButton.setDisabled( false );
};

/**
 * Handle failed show changes event.
 *
 * @method
 * @param {Object} jqXHR
 * @param {string} status Text status message
 */
ve.init.mw.ViewPageTarget.prototype.onShowChangesError = function ( jqXHR, status ) {
	alert( ve.msg( 'visualeditor-differror', status ) );
	this.$saveDialogLoadingIcon.hide();
	this.saveDialogReviewWrongButton.setDisabled( false );
};

/**
 * Called if a call to target.serialize() failed.
 *
 * @method
 * @param {jqXHR|null} jqXHR
 * @param {string} status Text status message
 */
ve.init.mw.ViewPageTarget.prototype.onSerializeError = function ( jqXHR, status ) {
	alert( ve.msg( 'visualeditor-serializeerror', status ) );
	this.$saveDialogLoadingIcon.hide();
	this.saveDialogReviewWrongButton.setDisabled( false );
};

/**
 * Handle edit conflict event.
 *
 * @method
 */
ve.init.mw.ViewPageTarget.prototype.onEditConflict = function () {
	this.$saveDialogLoadingIcon.hide();
	this.swapSaveDialog( 'conflict' );
};

/**
 * Handle failed show changes event.
 *
 * @method
 */
ve.init.mw.ViewPageTarget.prototype.onNoChanges = function () {
	this.$saveDialogLoadingIcon.hide();
	this.swapSaveDialog( 'nochanges' );
};

/**
 * Handle clicks on the edit tab.
 *
 * @method
 * @param {jQuery.Event} e Mouse click event
 */
ve.init.mw.ViewPageTarget.prototype.onEditTabClick = function ( e ) {
	this.activate();
	// Prevent the edit tab's normal behavior
	e.preventDefault();
};

/**
 * Handle clicks on a section edit link.
 *
 * @method
 * @param {jQuery.Event} e Mouse click event
 */
ve.init.mw.ViewPageTarget.prototype.onEditSectionLinkClick = function ( e ) {
	this.saveEditSection( $( e.target ).closest( 'h1, h2, h3, h4, h5, h6' ).get( 0 ) );
	this.activate();
	// Prevent the edit tab's normal behavior
	e.preventDefault();
};

/**
 * Handle clicks on the view tab.
 *
 * @method
 * @param {jQuery.Event} e Mouse click event
 */
ve.init.mw.ViewPageTarget.prototype.onViewTabClick = function ( e ) {
	if ( this.active ) {
		this.deactivate();
		// Prevent the edit tab's normal behavior
		e.preventDefault();
	} else if ( this.activating ) {
		this.deactivate( true );
		this.activating = false;
		e.preventDefault();
	}
};

/**
 * Handle clicks on the save button in the toolbar.
 *
 * @method
 * @param {jQuery.Event} e Mouse click event
 */
ve.init.mw.ViewPageTarget.prototype.onToolbarSaveButtonClick = function () {
	if ( this.edited || this.restoring ) {
		this.showSaveDialog();
	}
};

/**
 * Handle clicks on the save button in the toolbar.
 *
 * @method
 * @param {jQuery.Event} e Mouse click event
 */
ve.init.mw.ViewPageTarget.prototype.onToolbarCancelButtonClick = function () {
	this.deactivate();
};

/**
 * Handle clicks on the edit notices tool in the toolbar.
 *
 * @method
 * @param {jQuery.Event} e Mouse click event
 */
ve.init.mw.ViewPageTarget.prototype.onToolbarEditNoticesToolClick = function () {
	this.$toolbarEditNotices.fadeToggle( 'fast' );
	this.$document.focus();
};

/**
 * Handle clicks on the feedback tool in the toolbar.
 *
 * @method
 * @param {jQuery.Event} e Mouse click event
 */
ve.init.mw.ViewPageTarget.prototype.onToolbarFeedbackToolClick = function () {
	this.$toolbarEditNotices.fadeOut( 'fast' );
	this.feedback.launch();
};

/**
 * Handle the first transaction in the surface model.
 *
 * This handler is removed the first time it's used, but added each time the surface is set up.
 *
 * @method
 * @param {ve.dm.Transaction} tx Processed transaction
 */
ve.init.mw.ViewPageTarget.prototype.onSurfaceModelTransact = function () {
	// Clear the diff
	this.$saveDialog
		.find( '.ve-init-mw-viewPageTarget-saveDialog-slide-review .ve-init-mw-viewPageTarget-saveDialog-viewer' )
			.empty();

	this.surface.getModel().disconnect( this, { 'transact': 'onSurfaceModelTransact' } );
};

/**
 * Handle history events in the surface model.
 *
 * @method
 */
ve.init.mw.ViewPageTarget.prototype.onSurfaceModelHistory = function () {
	this.edited = this.surface.getModel().hasPastState();
	// Disable the save button if we have no history
	this.toolbarSaveButton.setDisabled( !this.edited );
};

/**
 * Handle clicks on the save button in the save dialog.
 *
 * @method
 */
ve.init.mw.ViewPageTarget.prototype.onSaveDialogSaveButtonClick = function () {
	var doc = this.surface.getModel().getDocument();
	this.saveDialogSaveButton.setDisabled( true );
	this.$saveDialogLoadingIcon.show();
	this.save(
		ve.dm.converter.getDomFromData( doc.getFullData(), doc.getStore(), doc.getInternalList() ),
		this.getSaveOptions()
	);
};

/**
 * Handle clicks on the review "Wrong" button in the save dialog.
 *
 * @method
 */
ve.init.mw.ViewPageTarget.prototype.onSaveDialogReviewWrongButtonClick = function () {
	this.swapSaveDialog( 'report' );
};

/**
 * Handle clicks on the review "Good" button in the save dialog.
 *
 * @method
 */
ve.init.mw.ViewPageTarget.prototype.onSaveDialogReviewGoodButtonClick = function () {
	this.swapSaveDialog( 'save' );
};

/**
 * Handle clicks on the report a problem button in the save dialog.
 *
 * @method
 */
ve.init.mw.ViewPageTarget.prototype.onSaveDialogReportButtonClick = function () {
	this.reportProblem( $( '#ve-init-mw-viewPageTarget-saveDialog-problem' ).val() );
	this.resetSaveDialog();
	this.hideSaveDialog();
	mw.notify( ve.msg( 'visualeditor-notification-reported' ) );
};

/**
 * Handle clicks on the resolve conflict button in the conflict dialog.
 *
 * @method
 */
ve.init.mw.ViewPageTarget.prototype.onSaveDialogResolveConflictButtonClick = function () {
	var doc = this.surface.getModel().getDocument();
	// Get Wikitext from the DOM, and set up a submit call when it's done
	this.serialize(
		ve.dm.converter.getDomFromData( doc.getFullData(), doc.getStore(), doc.getInternalList() ),
		ve.bind( function ( wikitext ) {
			this.submit( wikitext, this.getSaveOptions() );
		}, this )
	);
};

/**
 * Get save options from the save dialog form.
 *
 * @method
 * @returns {Object} Save options, including summary, minor and watch properties
 */
ve.init.mw.ViewPageTarget.prototype.getSaveOptions = function () {
	return {
		'summary': $( '#ve-init-mw-viewPageTarget-saveDialog-editSummary' ).val(),
		'minor': $( '#ve-init-mw-viewPageTarget-saveDialog-minorEdit' ).prop( 'checked' ),
		'watch': $( '#ve-init-mw-viewPageTarget-saveDialog-watchList' ).prop( 'checked' )
	};
};

/**
 * Handle clicks on the close button in the save dialog.
 *
 * @method
 * @param {jQuery.Event} e Mouse click event
 */
ve.init.mw.ViewPageTarget.prototype.onSaveDialogCloseButtonClick = function () {
	this.hideSaveDialog();
};

/**
 * Handle clicks on the previous view button in the save dialog.
 *
 * @method
 * @param {jQuery.Event} e Mouse click event
 */
ve.init.mw.ViewPageTarget.prototype.onSaveDialogPrevButtonClick = function () {
	// Hard code "review" for now.
	// Although we have more than 2 slides, slide "report" and "save" are both
	// branches of "review". Later this could terminate the path based on an
	// array or object, or keep a .history array even...
	this.swapSaveDialog( 'review' );
};

/**
 * Get a list of edit notices.
 *
 * @method
 * @returns {string[]} HTML strings for each edit notice
 */
ve.init.mw.ViewPageTarget.prototype.setupToolbarEditNotices = function () {
	var key;
	this.$toolbarEditNotices.empty();
	for ( key in this.editNotices ) {
		this.$toolbarEditNotices.append( this.editNotices[key] );
	}
};

/**
 * Switch to editing mode.
 *
 * @method
 * @param {HTMLDocument} doc HTML DOM to edit
 */
ve.init.mw.ViewPageTarget.prototype.setUpSurface = function ( doc ) {
	// Initialize surface
	this.editor = new ve.Editor( this, doc );
	this.surface = new ve.ui.Surface( this.editor, doc, this.surfaceOptions );
	this.surface.getContext().hide();
	this.$document = this.surface.$.find( '.ve-ce-documentNode' );
	this.surface.getModel().connect( this, { 'transact': 'onSurfaceModelTransact' } );
	this.surface.getModel().connect( this, { 'history': 'onSurfaceModelHistory' } );
	this.$.append( this.surface.$ );
	this.surface.initialize();
	this.setUpToolbar();
	this.transformPageTitle();
	// Update UI
	this.hidePageContent();
	this.hideSpinner();
	this.active = true;
	this.$document.attr( {
		'lang': mw.config.get( 'wgVisualEditor' ).pageLanguageCode,
		'dir': mw.config.get( 'wgVisualEditor' ).pageLanguageDir
	} );
};

/**
 * Switch to viewing mode.
 *
 * @method
 */
ve.init.mw.ViewPageTarget.prototype.tearDownSurface = function () {
	// Reset tabs
	this.restoreSkinTabs();
	// Update UI
	if ( this.$document ) {
		this.$document.blur();
		this.$document = null;
	}
	this.tearDownToolbar();
	this.hideSpinner();
	this.showPageContent();
	this.restorePageTitle();
	this.showTableOfContents();
	// Destroy editor
	if ( this.surface ) {
		this.editor.destroy();
		this.editor = null;
		this.surface.destroy();
		this.surface = null;
	}
	this.active = false;
};

/**
 * Modify tabs in the skin to support in-place editing.
 *
 * @method
 */
ve.init.mw.ViewPageTarget.prototype.setupSkinTabs = function () {
	var caVeEdit, caVeEditSource, uriClone,
		action = this.pageExists ? 'edit' : 'create',
		pTabsId = $( '#p-views' ).length ? 'p-views' : 'p-cactions',
		$caSource = $( '#ca-viewsource' ),
		$caEdit = $( '#ca-edit' ),
		$caEditLink = $caEdit.find( 'a' ),
		reverseTabOrder = $( 'body' ).hasClass( 'rtl' ) && pTabsId === 'p-views',
		caVeEditNextnode = reverseTabOrder ? $caEdit.get( 0 ) : $caEdit.next().get( 0 );

	if ( !$caEdit.length || $caSource.length ) {
		// If there is no edit tab or a view-source tab,
		// the user doesn't have permission to edit.
		return;
	}

	// Add independent "VisualEditor" tab (#ca-ve-edit).
	if ( this.tabLayout === 'add' ) {

		caVeEdit = mw.util.addPortletLink(
			pTabsId,
			// Use url instead of '#'.
			// So that 1) one can always open it in a new tab, even when
			// onEditTabClick is bound.
			// 2) when onEditTabClick is not bound (!isViewPage) it will
			// just work.
			this.veEditUri,
			// Message: 'visualeditor-ca-ve-edit' or 'visualeditor-ca-ve-create'
			ve.msg( 'visualeditor-ca-ve-' + action ),
			'ca-ve-edit',
			ve.msg( 'tooltip-ca-ve-edit' ),
			ve.msg( 'accesskey-ca-ve-edit' ),
			caVeEditNextnode
		);

	// Replace "Edit" tab with a veEditUri version, add "Edit source" tab.
	} else {
		// Create "Edit source" link.
		// Re-create instead of convert ca-edit since we don't want to copy over accesskey etc.
		caVeEditSource = mw.util.addPortletLink(
			pTabsId,
			// Use original href to preserve oldid etc. (bug 38125)
			$caEditLink.attr( 'href' ),
			ve.msg( 'visualeditor-ca-editsource' ),
			'ca-editsource',
			ve.msg( 'tooltip-ca-editsource' ),
			ve.msg( 'accesskey-ca-editsource' ),
			caVeEditNextnode
		);
		// Copy over classes (e.g. 'selected')
		$( caVeEditSource ).addClass( $caEdit.attr( 'class' ) );

		// Create "Edit" tab.
		$caEdit.remove();
		caVeEdit = mw.util.addPortletLink(
			pTabsId,
			// Use url instead of '#'.
			// So that 1) one can always open it in a new tab, even when
			// onEditTabClick is bound.
			// 2) when onEditTabClick is not bound (!isViewPage) it will
			// just work.
			this.veEditUri,
			$caEditLink.text(),
			$caEdit.attr( 'id' ),
			$caEditLink.attr( 'title' ),
			ve.msg( 'accesskey-ca-ve-edit' ),
			reverseTabOrder ? caVeEditSource.nextSibling : caVeEditSource
		);
	}

	if ( this.isViewPage ) {
		// Allow instant switching to edit mode, without refresh
		$( caVeEdit ).click( ve.bind( this.onEditTabClick, this ) );
		// Allow instant switching back to view mode, without refresh
		$( '#ca-view a, #ca-nstab-visualeditor a' )
			.click( ve.bind( this.onViewTabClick, this ) );
	}

	// If there got here via veaction=edit, hide it from the URL.
	if ( !ve.debug && ( this.currentUri.query.veaction === 'edit' && window.history.replaceState ) ) {
		// Remove the veaction query parameter, but don't affect the original mw.Uri instance
		uriClone = this.currentUri.clone();
		delete uriClone.query.veaction;

		// If there are other query parameters, set the url to the current one
		// (with veaction removed). Otherwise use the canonical style view url (bug 42553).
		if ( ve.getObjectValues( uriClone.query ).length ) {
			window.history.replaceState( null, document.title, uriClone );
		} else {
			window.history.replaceState( null, document.title, this.viewUri );
		}
	}
};

/**
 * Modify page content to make section edit links activate the editor.
 *
 * @method
 */
ve.init.mw.ViewPageTarget.prototype.setupSectionEditLinks = function () {
	var veEditUri = this.veEditUri,
		$links = $( '#mw-content-text .mw-editsection a, #mw-content-text .editsection a' );
	if ( this.isViewPage ) {
		$links.click( ve.bind( this.onEditSectionLinkClick, this ) );
	} else {
		$links.each( function () {
			var veSectionEditUri = new mw.Uri( veEditUri.toString() ),
				sectionEditUri = new mw.Uri( $(this).attr( 'href' ) );
			veSectionEditUri.extend( { 'vesection': sectionEditUri.query.section } );
			$(this).attr( 'href', veSectionEditUri );
		} );
	}
};

/**
 * Add content and event bindings to toolbar buttons.
 *
 * @method
 */
ve.init.mw.ViewPageTarget.prototype.setupToolbarButtons = function () {
	var editNoticeCount = ve.getObjectKeys( this.editNotices ).length;

	this.toolbarCancelButton = new ve.ui.ButtonWidget( { 'label': ve.msg( 'visualeditor-toolbar-cancel' ) } );
	this.toolbarSaveButton = new ve.ui.ButtonWidget( {
		'label': ve.msg( 'visualeditor-toolbar-savedialog' ),
		'flags': ['constructive'],
		'disabled': !this.restoring
	} );

	this.toolbarCancelButton.connect( this, { 'click': 'onToolbarCancelButtonClick' } );
	this.toolbarSaveButton.connect( this, { 'click': 'onToolbarSaveButtonClick' } );

	if ( editNoticeCount ) {
		this.$toolbarEditNoticesTool
			.addClass( 've-ui-icon-alert' )
			.append(
				$( '' )
					.addClass( 've-init-mw-viewPageTarget-tool-label' )
					.text( ve.msg( 'visualeditor-editnotices-tool', editNoticeCount ) )
			)
			.append( this.$toolbarEditNotices )
			.click( ve.bind( this.onToolbarEditNoticesToolClick, this ) );
		this.$toolbarEditNotices.fadeIn( 'fast' );
	}
	this.$toolbarFeedbackTool
		.addClass( 've-ui-icon-comment' )
		.append(
			$( '' )
				.addClass( 've-init-mw-viewPageTarget-tool-label' )
				.text( ve.msg( 'visualeditor-feedback-tool' ) )
		)
		.click( ve.bind( this.onToolbarFeedbackToolClick, this ) );
};

/**
 * Remove content and event bindings from toolbar buttons.
 *
 * @method
 */
ve.init.mw.ViewPageTarget.prototype.tearDownToolbarButtons = function () {
	this.toolbarCancelButton.disconnect( this );
	this.toolbarSaveButton.disconnect( this );
	this.$toolbarEditNoticesTool.empty().off( 'click' );
	this.$toolbarFeedbackTool.empty().off( 'click' );
};

/**
 * Add the save button to the user interface.
 *
 * @method
 */
ve.init.mw.ViewPageTarget.prototype.attachToolbarButtons = function () {
	var $target = this.toolbar.$actions;
	$target.append( this.$toolbarFeedbackTool );
	if ( !ve.isEmptyObject( this.editNotices ) ) {
		$target.append( this.$toolbarEditNoticesTool );
	}
	$target.append( this.toolbarCancelButton.$, this.toolbarSaveButton.$ );
};

/**
 * Remove the save button from the user interface.
 *
 * @method
 */
ve.init.mw.ViewPageTarget.prototype.detachToolbarButtons = function () {
	this.toolbarCancelButton.$.detach();
	this.toolbarSaveButton.$.detach();
	this.$toolbarEditNoticesTool.detach();
	this.$toolbarFeedbackTool.detach();
};

/**
 * Get a template for the save dialog.
 *
 * The result of this function depends on an API call, so the result it provided asynchronously.
 * The template will be wrapped in a plain `
` 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; this.saveDialogSaveButton = new ve.ui.ButtonWidget( { 'label': ve.msg( 'visualeditor-savedialog-label-' + ( viewPage.restoring ? 'restore' : 'save' ) ), 'flags': ['constructive'] } ); this.saveDialogSaveButton.connect( this, { 'click': 'onSaveDialogSaveButtonClick' } ); this.saveDialogReviewWrongButton = new ve.ui.ButtonWidget( { 'label': ve.msg( 'visualeditor-savedialog-label-review-wrong' ), 'flags': ['primary'] } ); this.saveDialogReviewWrongButton.connect( this, { 'click': 'onSaveDialogReviewWrongButtonClick' } ); this.saveDialogReviewGoodButton = new ve.ui.ButtonWidget( { 'label': ve.msg( 'visualeditor-savedialog-label-review-good' ), 'flags': ['constructive'] } ); this.saveDialogReviewGoodButton.connect( this, { 'click': 'onSaveDialogReviewGoodButtonClick' } ); this.saveDialogReportButton = new ve.ui.ButtonWidget( { 'label': ve.msg( 'visualeditor-savedialog-label-report' ), 'flags': ['constructive'] } ); this.saveDialogReportButton.connect( this, { 'click': 'onSaveDialogReportButtonClick' } ); 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( $wrap.contents() ) // Attach buttons .find( '.ve-init-mw-viewPageTarget-saveDialog-slide-save' ) .find( '.ve-init-mw-viewPageTarget-saveDialog-actions' ) .prepend( viewPage.saveDialogSaveButton.$ ) .end() .end() .find( '.ve-init-mw-viewPageTarget-saveDialog-slide-review' ) .find( '.ve-init-mw-viewPageTarget-saveDialog-actions' ) .prepend( viewPage.saveDialogReviewGoodButton.$, viewPage.saveDialogReviewWrongButton.$ ) .end() .end() .find( '.ve-init-mw-viewPageTarget-saveDialog-slide-report' ) .find( '.ve-init-mw-viewPageTarget-saveDialog-actions' ) .prepend( viewPage.saveDialogReportButton.$ ) .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' ); }, '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-problem' ) .attr( { 'placeholder': ve.msg( 'visualeditor-problem' ) } ) .placeholder() .on( { 'focus': function () { $(this).parent().addClass( 've-init-mw-viewPageTarget-saveDialog-report-focused' ); }, 'blur': function () { $(this).parent().removeClass( 've-init-mw-viewPageTarget-saveDialog-report-focused' ); } } ) .end() .find( '.ve-init-mw-viewPageTarget-saveDialog-report-notice' ) .html( ve.init.platform.getParsedMessage( 'visualeditor-report-notice' ) ) .end() .find( '.ve-init-mw-viewPageTarget-saveDialog-license' ) .html( ve.init.platform.getParsedMessage( 'copyrightwarning' ) ) .end() .find( '.ve-init-mw-viewPageTarget-saveDialog-conflict' ) .html( ve.init.platform.getParsedMessage( 'visualeditor-editconflict' ) ) .end() .find( '.ve-init-mw-viewPageTarget-saveDialog-nochanges' ) .html( ve.init.platform.getParsedMessage( 'visualeditor-diff-nochanges' ) ) ; // Get reference to loading icon viewPage.$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.$toolbarEditNotices.fadeOut( 'fast' ); viewPage.swapSaveDialog( 'review' ); viewPage.$saveDialog.fadeIn( 'fast', function () { // Initial size viewPage.onResizeSaveDialog(); }); $( document ).on( 'keydown.ve-savedialog', function ( e ) { // Escape if ( e.which === 27 ) { 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 ) - $d.height() ) - 20 // shadow ); }; /** * Hide the save dialog * * @method */ ve.init.mw.ViewPageTarget.prototype.hideSaveDialog = function () { this.$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-problem' ) .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 (forwards or backwards). * * @method * @param {string} slide One of 'review', 'report', 'save', 'conflict' or 'nochanges' * @return {jQuery} The now active slide. * @throws {Error} Unknown saveDialog slide */ ve.init.mw.ViewPageTarget.prototype.swapSaveDialog = function ( slide ) { var $slide, $viewer, doc = this.surface.getModel().getDocument(); if ( ve.indexOf( slide, [ 'review', 'report', 'save', 'conflict', 'nochanges' ] ) === -1 ) { throw new Error( 'Unknown saveDialog slide: ' + slide ); } $slide = this.$saveDialog.find( '.ve-init-mw-viewPageTarget-saveDialog-slide-' + slide ); this.$saveDialog // Hide prev button on first slides .find( '.ve-init-mw-viewPageTarget-saveDialog-prevButton' ) .toggle( ve.indexOf( slide, [ 'review', 'nochanges' ] ) === -1 ) .end() // Update title // Give grep a chance to find the usages: // visualeditor-savedialog-title-review, visualeditor-savedialog-title-report, // visualeditor-savedialog-title-save .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(); if ( slide === 'review' ) { $viewer = $slide.find( '.ve-init-mw-viewPageTarget-saveDialog-viewer' ); if ( !$viewer.find( 'table, pre' ).length ) { this.saveDialogReviewGoodButton.setDisabled( true ); this.saveDialogReviewWrongButton.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' || slide === 'report' ) { setTimeout( function () { $slide.find( 'textarea' ).eq( 0 ).focus(); } ); } return $slide; }; /** * Add the save dialog to the user interface. * * @method */ ve.init.mw.ViewPageTarget.prototype.attachSaveDialog = function () { this.toolbar.$bar.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 () { $( '#toc' ) .wrap( '
' ) .parent() .data( 've.hideTableOfContents', true ) .slideUp(); }; /** * Show the toolbar. * * This also transplants the toolbar to a new location. * * @method */ ve.init.mw.ViewPageTarget.prototype.setUpToolbar = function () { this.toolbar = new ve.ui.Toolbar( this.surface, { 'shadow': true, 'actions': true } ); this.editor.addCommands( this.constructor.static.surfaceCommands ); this.toolbar.addTools( this.constructor.static.toolbarTools ); if ( !this.isMobileDevice ) { this.toolbar.enableFloating(); } this.toolbar.$ .addClass( 've-init-mw-viewPageTarget-toolbar' ) .insertBefore( '#firstHeading' ); this.toolbar.$bar.slideDown( 'fast', ve.bind( function () { this.surface.getContext().update(); }, this ) ); }; /** * Hide the toolbar. * * @method */ ve.init.mw.ViewPageTarget.prototype.tearDownToolbar = function () { this.toolbar.$bar.slideUp( 'fast', ve.bind( function () { this.toolbar.destroy(); this.toolbar = null; }, this ) ); }; /** * Enable the toolbar save button. * * @method */ ve.init.mw.ViewPageTarget.prototype.transformPageTitle = function () { $( '#firstHeading' ).addClass( 've-init-mw-viewPageTarget-pageTitle' ); }; /** * Enable the toolbar save button. * * @method */ ve.init.mw.ViewPageTarget.prototype.mutePageTitle = function () { $( '#firstHeading, #siteSub:visible, #contentSub:visible' ).fadeTo( 'fast', 0.6 ); }; /** * Disable the toolbar save button. * * @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 ); }; /** * Modify page tabs to show that editing is taking place. * * @method */ ve.init.mw.ViewPageTarget.prototype.transformSkinTabs = function () { $( $( '#p-views' ).length ? '#p-views' : '#p-cactions' ) .find( 'li.selected' ).removeClass( 'selected' ); $( this.tabLayout === 'add' ? '#ca-ve-edit' : '#ca-edit' ) .addClass( 'selected' ); }; /** * Modify page tabs to show that viewing is taking place. * * @method */ ve.init.mw.ViewPageTarget.prototype.restoreSkinTabs = function () { $( $( '#p-views' ).length ? '#p-views' : '#p-cactions' ) .find( 'li.selected' ).removeClass( 'selected' ); $( '#ca-view' ).addClass( 'selected' ); }; /** * Hide site notice on page if present. * * @method */ ve.init.mw.ViewPageTarget.prototype.hideSiteNotice = function () { $( '#siteNotice:visible' ) .addClass( 've-hide' ) .slideUp( 'fast' ); }; /** * Show site notice on page if present. * * @method */ ve.init.mw.ViewPageTarget.prototype.restoreSiteNotice = function () { $(' #siteNotice.ve-hide' ) .slideDown( 'fast' ); }; /** * 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; $page.find( 'h1, h2, h3, h4, h5, h6' ).not( '#toc h2' ).each( function () { section++; if ( this === heading ) { return false; } } ); return section; }; /** * Get the numeric index of a section in the page. * * @method * @param {HTMLElement} heading Heading element of section */ ve.init.mw.ViewPageTarget.prototype.saveEditSection = function ( heading ) { this.section = this.getEditSection( heading ); }; /** * Move the cursor in the editor to a given section. * * @method * @param {number} section Section to move cursor to */ ve.init.mw.ViewPageTarget.prototype.restoreEditSection = function () { if ( this.section !== null ) { var offset, surfaceView = this.surface.getView(), surfaceModel = surfaceView.getModel(); this.$document.find( 'h1, h2, h3, h4, h5, h6' ).eq( this.section - 1 ).each( function () { var headingNode = $(this).data( 'view' ); if ( headingNode ) { offset = surfaceModel.getDocument().data.getNearestContentOffset( headingNode.getModel().getOffset() ); surfaceModel.change( null, new ve.Range( offset, offset ) ); surfaceView.showSelection( surfaceModel.getSelection() ); } } ); this.section = null; } }; /** * 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() );