/** * @license Copyright (c) 2003-2015, CKSource - Frederico Knabben. All rights reserved. * For licensing, see LICENSE.md. */ /* bender-tags: treeview */ 'use strict'; const modules = bender.amd.require( 'core/treeview/renderer', 'core/treeview/element', 'core/treeview/text', 'core/treeview/converter', 'core/ckeditorerror' ); describe( 'Renderer', () => { let Renderer, ViewElement, ViewText, CKEditorError, converter; let renderer; before( () => { Renderer = modules[ 'core/treeview/renderer' ]; ViewElement = modules[ 'core/treeview/element' ]; ViewText = modules[ 'core/treeview/text' ]; CKEditorError = modules[ 'core/ckeditorerror' ]; converter = modules[ 'core/treeview/converter' ]; renderer = new Renderer(); } ); describe( 'markToSync', () => { let viewNode; beforeEach( () => { viewNode = new ViewElement( 'p' ); const domNode = document.createElement( 'p' ); converter.bindElements( domNode, viewNode ); viewNode.appendChildren( new ViewText( 'foo' ) ); renderer.markedTexts.clear(); renderer.markedAttrs.clear(); renderer.markedChildren.clear(); } ); it( 'should mark attributes which need update', () => { viewNode.setAttr( 'class', 'foo' ); renderer.markToSync( viewNode, 'ATTRIBUTES_NEED_UPDATE' ); expect( renderer.markedAttrs.has( viewNode ) ).to.be.true; } ); it( 'should mark children which need update', () => { viewNode.appendChildren( new ViewText( 'foo' ) ); renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' ); expect( renderer.markedChildren.has( viewNode ) ).to.be.true; } ); it( 'should not mark children if element has no corresponding node', () => { // Overwrite viewNode with node without coresponding DOM node. viewNode = new ViewElement( 'p' ); viewNode.appendChildren( new ViewText( 'foo' ) ); renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' ); expect( renderer.markedTexts.has( viewNode ) ).to.be.false; } ); it( 'should mark text which need update', () => { const viewText = new ViewText( 'foo' ); viewNode.appendChildren( viewText ); viewText.setText( 'bar' ); renderer.markToSync( viewText, 'TEXT_NEEDS_UPDATE' ); expect( renderer.markedTexts.has( viewText ) ).to.be.true; } ); it( 'should not mark text if parent has no corresponding node', () => { const viewText = new ViewText( 'foo' ); // Overwrite viewNode with node without coresponding DOM node. viewNode = new ViewElement( 'p' ); viewNode.appendChildren( viewText ); viewText.setText( 'bar' ); renderer.markToSync( viewText, 'TEXT_NEEDS_UPDATE' ); expect( renderer.markedTexts.has( viewText ) ).to.be.false; } ); it( 'should throw if the type is unknown', () => { expect( () => { renderer.markToSync( viewNode, 'UNKNOWN' ); } ).to.throw( CKEditorError, /^renderer-unknown-type/ ); } ); } ); describe( 'render', () => { let viewNode, domNode; beforeEach( () => { viewNode = new ViewElement( 'p' ); domNode = document.createElement( 'p' ); converter.bindElements( domNode, viewNode ); renderer.markedTexts.clear(); renderer.markedAttrs.clear(); renderer.markedChildren.clear(); } ); it( 'should update attributes', () => { viewNode.setAttr( 'class', 'foo' ); renderer.markToSync( viewNode, 'ATTRIBUTES_NEED_UPDATE' ); renderer.render(); expect( domNode.getAttribute( 'class' ) ).to.equal( 'foo' ); expect( renderer.markedAttrs.size ).to.equal( 0 ); } ); it( 'should remove attributes', () => { viewNode.setAttr( 'class', 'foo' ); domNode.setAttribute( 'id', 'bar' ); domNode.setAttribute( 'class', 'bar' ); renderer.markToSync( viewNode, 'ATTRIBUTES_NEED_UPDATE' ); renderer.render(); expect( domNode.getAttribute( 'class' ) ).to.equal( 'foo' ); expect( domNode.getAttribute( 'id' ) ).to.be.not.ok; expect( renderer.markedAttrs.size ).to.equal( 0 ); } ); it( 'should add children', () => { viewNode.appendChildren( new ViewText( 'foo' ) ); renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' ); renderer.render(); expect( domNode.childNodes.length ).to.equal( 1 ); expect( domNode.childNodes[ 0 ].data ).to.equal( 'foo' ); expect( renderer.markedChildren.size ).to.equal( 0 ); } ); it( 'should remove children', () => { viewNode.appendChildren( new ViewText( 'foo' ) ); renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' ); renderer.render(); expect( domNode.childNodes.length ).to.equal( 1 ); expect( domNode.childNodes[ 0 ].data ).to.equal( 'foo' ); viewNode.removeChildren( 0, 1 ); renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' ); renderer.render(); expect( domNode.childNodes.length ).to.equal( 0 ); expect( renderer.markedChildren.size ).to.equal( 0 ); } ); it( 'should update text', () => { const viewText = new ViewText( 'foo' ); viewNode.appendChildren( viewText ); renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' ); renderer.render(); expect( domNode.childNodes.length ).to.equal( 1 ); expect( domNode.childNodes[ 0 ].data ).to.equal( 'foo' ); viewText.setText( 'bar' ); renderer.markToSync( viewText, 'TEXT_NEEDS_UPDATE' ); renderer.render(); expect( domNode.childNodes.length ).to.equal( 1 ); expect( domNode.childNodes[ 0 ].data ).to.equal( 'bar' ); expect( renderer.markedTexts.size ).to.equal( 0 ); } ); it( 'should not update text parent child list changed', () => { const viewImg = new ViewElement( 'img' ); const viewText = new ViewText( 'foo' ); viewNode.appendChildren( [ viewImg, viewText ] ); renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' ); renderer.markToSync( viewText, 'TEXT_NEEDS_UPDATE' ); renderer.render(); expect( domNode.childNodes.length ).to.equal( 2 ); expect( domNode.childNodes[ 0 ].tagName.toLowerCase() ).to.equal( 'img' ); expect( domNode.childNodes[ 1 ].data ).to.equal( 'foo' ); } ); it( 'should not change text if it is the same during text rendering', () => { const viewText = new ViewText( 'foo' ); viewNode.appendChildren( viewText ); renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' ); renderer.render(); // This should not be changed during the render. const domText = domNode.childNodes[ 0 ]; renderer.markToSync( viewText, 'TEXT_NEEDS_UPDATE' ); renderer.render(); expect( domNode.childNodes.length ).to.equal( 1 ); expect( domNode.childNodes[ 0 ] ).to.equal( domText ); } ); it( 'should not change text if it is the same during children rendering', () => { const viewText = new ViewText( 'foo' ); viewNode.appendChildren( viewText ); renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' ); renderer.render(); // This should not be changed during the render. const domText = domNode.childNodes[ 0 ]; renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' ); renderer.render(); expect( domNode.childNodes.length ).to.equal( 1 ); expect( domNode.childNodes[ 0 ] ).to.equal( domText ); } ); it( 'should not change element if it is the same', () => { const viewImg = new ViewElement( 'img' ); viewNode.appendChildren( viewImg ); // This should not be changed during the render. const domImg = document.createElement( 'img' ); domNode.appendChild( domImg ); converter.bindElements( domImg, viewImg ); renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' ); renderer.render(); expect( domNode.childNodes.length ).to.equal( 1 ); expect( domNode.childNodes[ 0 ] ).to.equal( domImg ); } ); it( 'should change element if it is different', () => { const viewImg = new ViewElement( 'img' ); viewNode.appendChildren( viewImg ); renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' ); renderer.render(); const viewP = new ViewElement( 'p' ); viewNode.removeChildren( 0, 1 ); viewNode.appendChildren( viewP ); renderer.markToSync( viewNode, 'CHILDREN_NEED_UPDATE' ); renderer.render(); expect( domNode.childNodes.length ).to.equal( 1 ); expect( domNode.childNodes[ 0 ].tagName.toLowerCase() ).to.equal( 'p' ); } ); } ); } );