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@@ -79,45 +79,50 @@ export default class ClassicEditorUI extends EditorUI {
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const editor = this.editor;
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const view = this.view;
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const editingView = editor.editing.view;
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+ const editable = view.editable;
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+ const editingRoot = editingView.document.getRoot();
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- view.editable.bind( 'isFocused' ).to( this.focusTracker );
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view.render();
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- // Set–up the sticky panel with toolbar.
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- view.stickyPanel.bind( 'isActive' ).to( this.focusTracker, 'isFocused' );
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- view.stickyPanel.limiterElement = view.element;
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+ // Register the editable UI view in the editor. A single editor instance can aggregate multiple
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+ // editable areas (roots) but the classic editor has only one.
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+ this._editableElements.push( view.editable );
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- if ( this._toolbarConfig.viewportTopOffset ) {
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- view.stickyPanel.viewportTopOffset = this._toolbarConfig.viewportTopOffset;
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- }
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+ // Let the global focus tracker know that the editable UI element is focusable and
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+ // belongs to the editor. From now on, the focus tracker will sustain the editor focus
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+ // as long as the editable is focused (e.g. the user is typing).
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+ this.focusTracker.add( editable.editableElement );
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+
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+ // Let the editable UI element respond to the changes in the global editor focus
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+ // tracker. It has been added to the same tracker a few lines above but, in reality, there are
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+ // many focusable areas in the editor, like balloons, toolbars or dropdowns and as long
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+ // as they have focus, the editable should act like it is focused too (although technically
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+ // it isn't), e.g. by setting the proper CSS class, visually announcing focus to the user.
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+ // Doing otherwise will result in editable focus styles disappearing, once e.g. the
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+ // toolbar gets focused.
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+ view.editable.bind( 'isFocused' ).to( this.focusTracker );
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- // Setup the editable.
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- const editingRoot = editingView.document.getRoot();
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+ // The editable UI and editing root should share the same name. Then name is used
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+ // to recognize the particular editable, for instance in ARIA attributes.
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view.editable.name = editingRoot.rootName;
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+ // The UI must wait until the data is ready to attach certain actions that operate
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+ // on the editing view–level. They use the view writer to set attributes on the editable
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+ // element and doing so before data is loaded into the model (ready) would destroy the
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+ // original content.
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editor.on( 'dataReady', () => {
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view.editable.enableDomRootActions();
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-
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attachPlaceholder( editingView, getPlaceholderElement( editingRoot ), 'Type some text...' );
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} );
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- this.focusTracker.add( view.editable.editableElement );
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-
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- this._editableElements.push( view.editable );
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-
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- view.toolbar.fillFromConfig( this._toolbarConfig.items, this.componentFactory );
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-
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- enableToolbarKeyboardFocus( {
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- origin: editingView,
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- originFocusTracker: this.focusTracker,
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- originKeystrokeHandler: editor.keystrokes,
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- toolbar: view.toolbar
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- } );
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-
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+ // If an element containing the initial data of the editor was provided, replace it with
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+ // an editor instance's UI in DOM until the editor is destroyed. For instance, a <textarea>
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+ // can be such element.
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if ( replacementElement ) {
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this._elementReplacer.replace( replacementElement, this.element );
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}
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+ this._initToolbar();
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this.ready();
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}
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@@ -130,4 +135,32 @@ export default class ClassicEditorUI extends EditorUI {
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super.destroy();
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}
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+
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+ /**
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+ * Initializes the editor toolbar.
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+ *
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+ * @private
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+ */
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+ _initToolbar() {
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+ const editor = this.editor;
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+ const view = this.view;
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+ const editingView = editor.editing.view;
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+
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+ // Set–up the sticky panel with toolbar.
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+ view.stickyPanel.bind( 'isActive' ).to( this.focusTracker, 'isFocused' );
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+ view.stickyPanel.limiterElement = view.element;
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+
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+ if ( this._toolbarConfig.viewportTopOffset ) {
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+ view.stickyPanel.viewportTopOffset = this._toolbarConfig.viewportTopOffset;
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+ }
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+
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+ view.toolbar.fillFromConfig( this._toolbarConfig.items, this.componentFactory );
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+
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+ enableToolbarKeyboardFocus( {
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+ origin: editingView,
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+ originFocusTracker: this.focusTracker,
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+ originKeystrokeHandler: editor.keystrokes,
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+ toolbar: view.toolbar
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+ } );
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+ }
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}
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