define([
'libs/jquery-1.9.1.min',
'libs/underscore-min',
+'libs/backbone-min',
'modules/documentCanvas/canvas/documentElement',
'modules/documentCanvas/canvas/utils'
-], function($, _, documentElement, utils) {
+], function($, _, Backbone, documentElement, utils) {
'use strict';
var Canvas = function(wlxml, publisher) {
+ this.eventBus = _.extend({}, Backbone.Events);
this.loadWlxml(wlxml);
this.publisher = publisher ? publisher : function() {};
};
if(d) {
this.wrapper = $('<div>').addClass('canvas-wrapper').attr('contenteditable', true);
this.wrapper.append(d);
-
+ var canvas = this;
+
this.wrapper.find('*').replaceWith(function() {
var currentTag = $(this);
if(currentTag.attr('wlxml-tag'))
meta: meta,
others: others,
rawChildren: currentTag.contents()
- });
+ }, canvas);
['orig-before', 'orig-after', 'orig-begin', 'orig-end'].forEach(function(attr) {
element.data(attr, '');
this.d = this.wrapper.children(0);
- var canvas = this;
- this.wrapper.on('keydown', function(e) {
- if(e.which === 13) {
- e.preventDefault();
- var cursor = canvas.getCursor();
- if(!cursor.isSelecting()) {
- var position = cursor.getPosition(),
- 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);
- }
- }
- }
- });
-
-
var KEYS = {
+ ENTER: 13,
ARROW_LEFT: 37,
ARROW_UP: 38,
ARROW_RIGHT: 39,
- ARROW_DOWN: 40
+ ARROW_DOWN: 40,
+ BACKSPACE: 8,
+ DELETE: 46,
+ X: 88
}
this.wrapper.on('keyup', function(e) {
});
this.wrapper.on('keydown', function(e) {
+ var cursor = canvas.getCursor(),
+ 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;
}
+
+ 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(),
+ position = cursor.getPosition(),
+ element = position.element;
+
+ if(!cursor.isSelecting()) {
+ if(e.ctrlKey) {
+ var added = element.after({tag: 'block'});
+ added.append({text:''});
+ canvas.setCurrentElement(added, {caretTo: 'start'});
+
+ } else {
+
+ if(!(element.parent().parent())) {
+ return false; // top level element is unsplittable
+ }
+
+ var elements = position.element.split({offset: position.offset}),
+ newEmpty,
+ goto,
+ gotoOptions;
+
+ if(position.offsetAtBeginning)
+ newEmpty = elements.first;
+ else if(position.offsetAtEnd)
+ newEmpty = elements.second;
+
+ if(newEmpty) {
+ goto = newEmpty.append(documentElement.DocumentTextElement.create({text: ''}, this));
+ gotoOptions = {};
+ } else {
+ goto = elements.second;
+ gotoOptions = {caretTo: 'start'};
+ }
+
+ canvas.setCurrentElement(goto, gotoOptions);
+ }
+ }
+ }
});
this.wrapper.on('click', '[document-node-element], [document-text-element]', function(e) {
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;
+ if(documentElement.DocumentTextElement.isContentContainer(mutation.target)) {
+ if(mutation.target.data === '')
+ mutation.target.data = utils.unicode.ZWS;
+ canvas.publisher('contentChanged');
+ }
});
});
var config = { attributes: false, childList: false, characterData: true, subtree: true, characterDataOldValue: true};
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);
+ }
+ })
+
} else {
this.d = null;
}
wrapperElement.after({text: suffixOutside});
return wrapperElement;
},
+
+ wrapElements: function(params) {
+ if(!(params.element1.parent().sameNode(params.element2.parent())))
+ return;
+
+ var parent = params.element1.parent(),
+ parentChildren = parent.children(),
+ wrapper = documentElement.DocumentNodeElement.create({
+ tag: params._with.tag,
+ klass: params._with.klass}),
+ idx1 = parent.childIndex(params.element1),
+ idx2 = parent.childIndex(params.element2);
+
+ if(idx1 > idx2) {
+ var tmp = idx1;
+ idx1 = idx2;
+ idx2 = tmp;
+ }
+
+ var insertingMethod, insertingTarget;
+ if(idx1 === 0) {
+ insertingMethod = 'prepend';
+ insertingTarget = parent;
+ } else {
+ insertingMethod = 'after';
+ insertingTarget = parentChildren[idx1-1];
+ }
+
+ for(var i = idx1; i <= idx2; i++) {
+ wrapper.append(parentChildren[i].detach());
+ }
+
+ insertingTarget[insertingMethod](wrapper);
+ return wrapper;
+ },
+
+ getSiblingParents: function(params) {
+ var parents1 = [params.element1].concat(params.element1.parents()).reverse(),
+ parents2 = [params.element2].concat(params.element2.parents()).reverse(),
+ noSiblingParents = null;
+
+ if(parents1.length === 0 || parents2.length === 0 || !(parents1[0].sameNode(parents2[0])))
+ return noSiblingParents;
+
+ var i;
+ for(i = 0; i < Math.min(parents1.length, parents2.length); i++) {
+ if(parents1[i].sameNode(parents2[i]))
+ continue;
+ break;
+ }
+ return {element1: parents1[i], element2: parents2[i]};
+ },
+
getDocumentElement: function(from) {
if(from instanceof HTMLElement || from instanceof Text) {
return documentElement.DocumentElement.fromHTMLElement(from, this);
fnp / fnpeditor.git / blobdiff