+
+ var KEYS = {
+ ENTER: 13,
+ ARROW_LEFT: 37,
+ ARROW_UP: 38,
+ ARROW_RIGHT: 39,
+ ARROW_DOWN: 40,
+ BACKSPACE: 8,
+ DELETE: 46,
+ X: 88
+ }
+
+ this.wrapper.on('keyup', function(e) {
+ if(e.which >= 37 && e.which <= 40) {
+ var element = canvas.getCursor().getPosition().element,
+ caretTo = false;
+ if(!element) {
+ // Chrome hack
+ var direction;
+ if(e.which === KEYS.ARROW_LEFT || e.which === KEYS.ARROW_UP) {
+ direction = 'above';
+ caretTo = 'end';
+ } else {
+ direction = 'below';
+ caretTo = 'start';
+ }
+ element = canvas.getDocumentElement(utils.nearestInDocumentOrder('[document-text-element]:visible', direction, window.getSelection().focusNode));
+ }
+ canvas.setCurrentElement(element, {caretTo: caretTo});
+ }
+ });
+
+ this.wrapper.on('keydown', function(e) {
+ var cursor = canvas.getCursor(),
+ position = canvas.getCursor().getPosition(),
+ element = position.element;
+ if(e.which >= 37 && e.which <= 40) {
+
+ if(element && (element instanceof documentElement.DocumentTextElement)) {
+ if(element.isEmpty()) {
+ var direction, caretTo;
+ if(e.which === KEYS.ARROW_LEFT || e.which === KEYS.ARROW_UP) {
+ direction = 'above';
+ caretTo = 'end';
+ } else {
+ direction = 'below';
+ caretTo = 'start';
+ }
+ var el = canvas.getDocumentElement(utils.nearestInDocumentOrder('[document-text-element]', direction, window.getSelection().focusNode))
+ canvas.setCurrentElement(element, {caretTo: caretTo});
+ } else {
+ var txt = element.dom().contents()[0].data;
+ if(e.which === KEYS.ARROW_LEFT && position.offset > 1 && txt.charAt(position.offset-2) === utils.unicode.ZWS) {
+ e.preventDefault();
+ canvas._moveCaretToTextElement(element, position.offset-2);
+ }
+ if(e.which === KEYS.ARROW_RIGHT && position.offset < txt.length - 1 && txt.charAt(position.offset+1) === utils.unicode.ZWS) {
+ e.preventDefault();
+ canvas._moveCaretToTextElement(element, position.offset+2);
+ }
+ }
+ }
+
+
+ }
+
+ var selectsWholeTextElement = function() {
+ if(cursor.isSelecting() && cursor.getSelectionStart().offsetAtBeginning && cursor.getSelectionEnd().offsetAtEnd)
+ return true;
+ return false;
+ }
+
+ if(e.which === KEYS.X && e.ctrlKey && selectsWholeTextElement()) {
+ e.preventDefault();
+ }
+
+ if(e.which === KEYS.BACKSPACE || e.which === KEYS.DELETE) {
+ if(cursor.isSelecting() && !cursor.isSelectingWithinElement()) {
+ e.preventDefault();
+ return;
+ }
+
+ var cursorAtOperationEdge = position.offsetAtBeginning;
+ if(e.which === KEYS.DELETE) {
+ cursorAtOperationEdge = position.offsetAtEnd;
+ }
+
+ if(element.getText().length === 1 || selectsWholeTextElement()) {
+ e.preventDefault();
+ element.setText('');
+ }
+ else if(element.isEmpty()) {
+
+ var direction = 'above',
+ caretTo = 'end';
+
+ if(e.which === KEYS.DELETE) {
+ direction = 'below';
+ caretTo = 'start';
+ }
+
+ 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]', direction, element.dom()[0]));
+ }
+ parent.detach();
+ } else {
+ goto = canvas.getDocumentElement(utils.nearestInDocumentOrder('[document-text-element]', direction, element.dom()[0]));
+ element.detach();
+ }
+ canvas.setCurrentElement(goto, {caretTo: caretTo});
+ }
+ else if(cursorAtOperationEdge) {
+ // todo
+ e.preventDefault();
+ }
+ }
+
+ if(e.which === KEYS.ENTER) {
+ e.preventDefault();
+ var cursor = canvas.getCursor();
+ if(!cursor.isSelecting()) {
+ var position = cursor.getPosition(),
+ element = position.element;
+
+ if(!(element.parent().parent())) {
+ return false; // top level element is unsplittable
+ }
+
+ var elements = position.element.split({offset: position.offset}),
+ newEmpty,
+ goto;
+
+ if(position.offsetAtBeginning)
+ newEmpty = elements.first;
+ else if(position.offsetAtEnd)
+ newEmpty = elements.second;
+ if(newEmpty) {
+ goto = newEmpty.append(documentElement.DocumentTextElement.create({text: ''}, this));
+ canvas.setCurrentElement(goto);
+ }
+ }
+ }
+ });
+
+ this.wrapper.on('click', '[document-node-element], [document-text-element]', function(e) {
+ e.stopPropagation();
+ canvas.setCurrentElement(canvas.getDocumentElement(e.currentTarget), {caretTo: false});
+ });
+
+ var observer = new MutationObserver(function(mutations) {
+ mutations.forEach(function(mutation) {
+ if(documentElement.DocumentTextElement.isContentContainer(mutation.target) && mutation.target.data === '')
+ mutation.target.data = utils.unicode.ZWS;
+ });
+ });
+ var config = { attributes: false, childList: false, characterData: true, subtree: true, characterDataOldValue: true};
+ observer.observe(this.d[0], config);
+
+
+ this.wrapper.on('mouseover', '[document-node-element], [document-text-element]', function(e) {
+ var el = canvas.getDocumentElement(e.currentTarget);
+ if(!el)
+ return;
+ e.stopPropagation();
+ if(el instanceof documentElement.DocumentTextElement)
+ el = el.parent();
+ el.toggleLabel(true);
+ });
+ this.wrapper.on('mouseout', '[document-node-element], [document-text-element]', function(e) {
+ var el = canvas.getDocumentElement(e.currentTarget);
+ if(!el)
+ return;
+ e.stopPropagation();
+ if(el instanceof documentElement.DocumentTextElement)
+ el = el.parent();
+ el.toggleLabel(false);
+ });
+
+ this.eventBus.on('elementToggled', function(toggle, element) {
+ if(!toggle) {
+ element = canvas.getDocumentElement(utils.nearestInDocumentOrder('[document-text-element]:visible', 'above', element.dom()[0]));
+ canvas.setCurrentElement(element);
+ }
+ })
+
fnp / fnpeditor.git / blobdiff