User:John Vandenberg/switch editor.js

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This user script seems to have a documentation page at User:John Vandenberg/switch editor.

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// This script adds a 'source' checkbox which, when pressed, causes the 'diff' button to load the Source Editor, with a diff.
 
// It could break with changes to VE.
// Use at your own risk, and pester the VE team to add this feature.


// This hook is fired when the first 'Save' is loaded.
// There are better hooks to load the editor switcher earlier, but 
// This is the most reliable hook at present.  However this hook is fired
// frequently, so the code needs to be further optimised.
// The save dialog is built from a template, and we dont want to be invoked
// before the save dialog has been properly instantiated.
// TODO: document the other hooks and related problems in more detail, and
//       raise bugs if appropriate.

mw.hook( 've.saveDialog.stateChanged' ).add( function() {
	// If the editor switch UI hasnt been added, add the UI and associated hooks.
	if ($('#ve-init-mw-viewPageTarget-saveDialog-source').length==0) {
		// Add a checkbox and label.  This UI overlaps the character count, and needs to be revised.
		$("label.ve-init-mw-viewPageTarget-saveDialog-watchList-label").after('<input type="checkbox" name="sourceDiff" id="ve-init-mw-viewPageTarget-saveDialog-source"><label class="ve-init-mw-viewPageTarget-saveDialog-watchList-source">Source</label>');

		ve.init.mw.targets[0].onSaveDialogReviewButtonClick = function () {
			// Detect if the new checkbox has been ticked.
			var source = $( '#ve-init-mw-viewPageTarget-saveDialog-source' ).prop( 'checked' );

			if (!source)
				this.swapSaveDialog( 'review' );
			else {
				// Build a 'document' from the VE, ready to be serialised.
				var doc = this.surface.getModel().getDocument();
				doc = ve.dm.converter.getDomFromData( doc.getFullData(), doc.getStore(), doc.getInternalList() );

				// Copy VE save form buttons into SE form
				var saveOptions = this.getSaveOptions();
				minorChecked = '';
				watchChecked = '';
				 if ( saveOptions.minor ) {
					minorChecked = 'checked="checked" ';
				}
				if ( saveOptions.watch ) {
					watchChecked = 'checked="checked" ';
				}

				// The serialize function checks this variable to avoid multiple ajax requests
				this.serializing = false;

				this.serialize( doc, 
					function( content ) {
						// Remove form if it already exists
						if ($('#editform').length!=0) {
							$('#editform').remove();
						}

						// Inject a source editor form, populated with values.
						// It isnt hidden yet, as it shouldn't be too visually annoying
						// and keeping it visible may help with debugging if the op fails.
						$("body").append('<form id="editform" name="editform" method="post" action="/w/index.php?title='+wgPageName+'&amp;action=submit" enctype="multipart/form-data"><textarea name=wpTextbox1 id=wpTextbox1></textarea><input id="wpDiff" name="wpDiff" type="submit" tabindex="7" value="Show changes"/><input name="wpSummary" value="'+mw.html.escape(saveOptions.summary)+'"/><input name="wpMinoredit" value="1" '+ minorChecked + ' type="checkbox"/><input name="wpWatchthis" value="1" ' + watchChecked + ' type="checkbox"/><input name="wpSection"/><input name="wpAutoSummary"/><input name="wpStarttime"/><input name="wpEdittime"/><input name="oldid" value="0"/><input name="model" value="wikitext"/><input name="format" value="text/x-wiki"/><input name="wpAntispam" value=""/><input name="baseRevId" value="0"/><input name="altBaseRevId" value="0"/><input name="undidRev" value="0"/><input name="wpScrolltop" value="0"/><input name="undidRev" value="0"/><input type="hidden" value="' + ve.init.mw.targets[0].editToken + '" name="wpEditToken" /></form>' );

						// This disables the "unsaved data" warning
						window.onbeforeunload = function (){};

						// add wikitext to form and click the diff button
						$("textarea#wpTextbox1").val(content).parent().children("#wpDiff").click();

					}
				);
			};
		};

		// This changes the button click binding.
		// It is probably fragile.
		ve.init.mw.targets[0].saveDialogReviewButton.bindings.click[0].callback = ve.init.mw.targets[0].onSaveDialogReviewButtonClick;
	}
});