From: Aleksander Ɓukasz Date: Wed, 7 Aug 2013 10:23:52 +0000 (+0200) Subject: Handling backspace on empty text element (wip) X-Git-Url: https://git.mdrn.pl/fnpeditor.git/commitdiff_plain/3e4d8926aeff66f590b8a64f5b43cde1215d777a?ds=sidebyside;hp=25e14ce74de1ecdd95f36cb19e231b5a66898038 Handling backspace on empty text element (wip) --- diff --git a/modules/documentCanvas/canvas/canvas.js b/modules/documentCanvas/canvas/canvas.js index 318a22f..e706428 100644 --- a/modules/documentCanvas/canvas/canvas.js +++ b/modules/documentCanvas/canvas/canvas.js @@ -173,7 +173,8 @@ $.extend(Canvas.prototype, { ARROW_LEFT: 37, ARROW_UP: 38, ARROW_RIGHT: 39, - ARROW_DOWN: 40 + ARROW_DOWN: 40, + BACKSPACE: 8 } this.wrapper.on('keyup', function(e) { @@ -197,9 +198,10 @@ $.extend(Canvas.prototype, { }); this.wrapper.on('keydown', function(e) { + var position = canvas.getCursor().getPosition(), + element = position.element; if(e.which >= 37 && e.which <= 40) { - var position = canvas.getCursor().getPosition(), - element = position.element; + if(element && (element instanceof documentElement.DocumentTextElement)) { if(element.isEmpty()) { var direction, caretTo; @@ -227,6 +229,34 @@ $.extend(Canvas.prototype, { } + if(e.which === KEYS.BACKSPACE) { + if(element.getText().length === 1) { + e.preventDefault(); + element.setText(''); + } + else if(element.isEmpty()) { + e.preventDefault(); + + var parent = element.parent(), + grandParent = parent ? parent.parent() : null, + goto; + if(parent.children().length === 1) { + if(grandParent && grandParent.children().length === 1) { + goto = grandParent.append({text: ''}); + } else { + goto = canvas.getDocumentElement(utils.nearestInDocumentOrder('[document-text-element]', 'above', element.dom()[0])); + } + parent.detach(); + } else { + goto = canvas.getDocumentElement(utils.nearestInDocumentOrder('[document-text-element]', 'above', element.dom()[0])); + element.detach(); + } + canvas.setCurrentElement(goto, {caretTo: 'end'}); + } + else if(position.offset === 0) { + // todo + } + } }); this.wrapper.on('click', '[document-node-element], [document-text-element]', function(e) {