define([
'libs/jquery-1.9.1.min',
'libs/underscore-min',
-'modules/documentCanvas/canvas/documentElement'
-], function($, _, documentElement) {
+'libs/backbone-min',
+'modules/documentCanvas/canvas/documentElement',
+'modules/documentCanvas/canvas/utils'
+], function($, _, 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'))
tag: currentTag.prop('tagName').toLowerCase(),
klass: currentTag.attr('class'),
meta: meta,
- others: others
- });
+ others: others,
+ rawChildren: currentTag.contents()
+ }, canvas);
- element.dom().append(currentTag.contents());
- ['orig-before', 'orig-append'].forEach(function(attr) {
+ ['orig-before', 'orig-after', 'orig-begin', 'orig-end'].forEach(function(attr) {
element.data(attr, '');
});
return element.dom();
});
+ var FIRST_CONTENT_INDEX = 0;
+
+ // @@ TODO - refactor!
+ var getNode = function(element) {
+ return element.children('[document-element-content]');
+ }
+
this.wrapper.find(':not(iframe)').addBack().contents()
.filter(function() {return this.nodeType === Node.TEXT_NODE})
.each(function() {
- var el = $(this);
-
// TODO: use DocumentElement API
- var spanParent = el.parent().attr('wlxml-tag') === 'span',
- spanBefore = el.prev().length > 0 && $(el.prev()[0]).attr('wlxml-tag') === 'span',
- spanAfter = el.next().length > 0 && $(el.next()[0]).attr('wlxml-tag') === 'span';
-
- var oldText = this.data,
- oldLength = this.data.length;
- var parent = el.parent(),
- parentContents = parent.contents(),
- idx = parentContents.index(this),
- next = idx < parentContents.length - 1 ? parentContents[idx+1] : null;
-
- var addInfo = function() {
- if(next) {
- $(next).data('orig-before', oldText);
- } else {
- parent.data('orig-append', oldText);
- }
+
+ var el = $(this),
+ text = {original: el.text(), trimmed: $.trim(el.text())},
+ elParent = el.parent(),
+ hasSpanParent = elParent.attr('wlxml-tag') === 'span',
+ hasSpanBefore = el.prev().length > 0 && getNode($(el.prev()[0])).attr('wlxml-tag') === 'span',
+ hasSpanAfter = el.next().length > 0 && getNode($(el.next()[0])).attr('wlxml-tag') === 'span';
+
+ if(el.parent().hasClass('canvas-widget'))
+ return true; // continue
+
+ var addInfo = function(toAdd, where) {
+ var parentContents = elParent.contents(),
+ idx = parentContents.index(el[0]),
+ prev = idx > FIRST_CONTENT_INDEX ? parentContents[idx-1] : null,
+ next = idx < parentContents.length - 1 ? parentContents[idx+1] : null,
+ target, key;
+
+ if(where === 'above') {
+ target = prev ? $(prev) : elParent.parent();
+ key = prev ? 'orig-after' : 'orig-begin';
+ } else if(where === 'below') {
+ target = next ? $(next) : elParent.parent();
+ key = next ? 'orig-before' : 'orig-end';
+ } else { throw new Object;}
+
+ target.data(key, toAdd);
}
- if(spanParent || spanBefore || spanAfter) {
- var startSpace = /\s/g.test(this.data.substr(0,1));
- var endSpace = /\s/g.test(this.data.substr(-1)) && this.data.length > 1;
- var trimmed = $.trim(this.data);
- var newText = (startSpace && (spanParent || spanBefore) ? ' ' : '')
- + trimmed
- + (endSpace && (spanParent || spanAfter) ? ' ' : '');
- if(newText !== oldText) {
- this.data = newText;
- addInfo();
- }
+ text.transformed = text.trimmed;
+
+ if(hasSpanParent || hasSpanBefore || hasSpanAfter) {
+ var startSpace = /\s/g.test(text.original.substr(0,1)),
+ endSpace = /\s/g.test(text.original.substr(-1)) && text.original.length > 1;
+ text.transformed = (startSpace && (hasSpanParent || hasSpanBefore) ? ' ' : '')
+ + text.trimmed
+ + (endSpace && (hasSpanParent || hasSpanAfter) ? ' ' : '');
} else {
+ if(text.trimmed.length === 0 && text.original.length > 0 && elParent.contents().length === 1)
+ text.transformed = ' ';
+ }
- this.data = $.trim(this.data);
- if(this.data.length === 0 && oldLength > 0 && el.parent().contents().length === 1)
- this.data = ' ';
- if(this.data.length === 0) {
- addInfo();
- el.remove();
+ if(!text.transformed) {
+ addInfo(text.original, 'below');
+ el.remove();
+ return true; // continue
+ }
- return true; // continue
+ if(text.transformed !== text.original) {
+ if(!text.trimmed) {
+ addInfo(text.original, 'below');
+ } else {
+ var startingMatch = text.original.match(/^\s+/g),
+ endingMatch = text.original.match(/\s+$/g),
+ startingWhiteSpace = startingMatch ? startingMatch[0] : null,
+ endingWhiteSpace = endingMatch ? endingMatch[0] : null;
+
+ if(endingWhiteSpace) {
+ if(text.transformed[text.transformed.length - 1] === ' ' && endingWhiteSpace[0] === ' ')
+ endingWhiteSpace = endingWhiteSpace.substr(1);
+ addInfo(endingWhiteSpace, 'below');
+ }
+
+ if(startingWhiteSpace) {
+ if(text.transformed[0] === ' ' && startingWhiteSpace[startingWhiteSpace.length-1] === ' ')
+ startingWhiteSpace = startingWhiteSpace.substr(0, startingWhiteSpace.length -1);
+ addInfo(startingWhiteSpace, 'above');
+ }
}
}
- var element = documentElement.DocumentTextElement.create({text: this.data});
- $(this).replaceWith(element.dom());
+ var element = documentElement.DocumentTextElement.create({text: text.transformed});
+ el.replaceWith(element.dom());
});
this.d = this.wrapper.children(0);
- var canvas = this;
+ 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) {
- if(e.which === 13) {
+ 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();
- var cursor = canvas.getCursor();
- if(!cursor.isSelecting()) {
- var position = cursor.getPosition(),
- elements = position.element.split({offset: position.offset}),
- newEmpty,
+ }
+
+ 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(position.offsetAtBeginning)
- newEmpty = elements.first;
- else if(position.offsetAtEnd)
- newEmpty = elements.second;
- if(newEmpty) {
- goto = newEmpty.append(documentElement.DocumentTextElement.create({text: '\u200B'}, this));
- canvas.setCurrentElement(goto);
+ 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;
+
+ 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('keyup', function(e) {
- if(e.which >= 37 && e.which <= 40)
- canvas.setCurrentElement(canvas.getCursor().getPosition().element, {caretTo: false})
+ 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('click', '[wlxml-tag], [wlxml-text]', function(e) {
+ this.wrapper.on('mouseover', '[document-node-element], [document-text-element]', function(e) {
+ var el = canvas.getDocumentElement(e.currentTarget);
+ if(!el)
+ return;
e.stopPropagation();
- canvas.setCurrentElement(canvas.getDocumentElement(e.target), {caretTo: false});
+ 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);
+ }
+ })
+
} 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);
list: {},
-
-
- highlightElement: function(element) {
- this.wrapper.find('.highlighted-element').removeClass('highlighted-element');
- element.dom().addClass('highlighted-element');
- },
-
- dimElement: function(element) {
- element.dom().removeClass('highlighted-element');
- },
getCurrentNodeElement: function() {
- return this.getDocumentElement(this.wrapper.find('.current-node-element')[0]);
+ return this.getDocumentElement(this.wrapper.find('.current-node-element').parent()[0]);
},
getCurrentTextElement: function() {
element.dom().addClass('current-text-element');
} else {
this.wrapper.find('.current-node-element').removeClass('current-node-element')
- element.dom().addClass('current-node-element');
+ element._container().addClass('current-node-element');
this.publisher('currentElementChanged', element);
}
}.bind(this);
},
toXML: function() {
- var d = function(element, parent, level) {
- console.log(element.getText ? 'text: ' + element.getText() : 'node: ' + element.getWlxmlTag());
- var isElementNode = element instanceof documentElement.DocumentNodeElement;
- parent.prepend(element.toXML(level));
- if(isElementNode) {
- var dom = $(parent.children()[0]),
- elementChildren = element.children();
- for(var i = elementChildren.length - 1; i >= 0; i--) {
- d(elementChildren[i], dom, level + 1);
- }
- }
- }
- var parent = $('<div>');
- d(this.doc(), parent, 0);
+ var parent = $('<div>'),
+ parts = this.doc().toXML(0);
+ parent.append(parts);
return parent.html();
}
});
anchorElement = this.canvas.getDocumentElement(selection.anchorNode),
focusElement = this.canvas.getDocumentElement(selection.focusNode);
- if(anchorElement instanceof documentElement.DocumentNodeElement || focusElement instanceof documentElement.DocumentNodeElement)
+ var getOffset = function(where) {
+ var toret, node;
+ if(where === 'anchor') {
+ node = selection.anchorNode;
+ toret = selection.anchorOffset;
+ } else {
+ node = selection.focusNode;
+ toret = selection.focusOffset;
+ }
+
+ if(toret === 1 && node.data.charAt(0) === utils.unicode.ZWS)
+ toret = 0;
+ else if((toret === node.data.length - 1) && (node.data.charAt(node.data.length - 1) === utils.unicode.ZWS))
+ toret++;
+ return toret;
+ }
+
+ if((!anchorElement) || (anchorElement instanceof documentElement.DocumentNodeElement) || (!focusElement) || focusElement instanceof documentElement.DocumentNodeElement)
return {};
if(which === 'anchor') {
return {
element: anchorElement,
- offset: selection.anchorOffset,
- offsetAtBeginning: selection.anchorOffset === 0,
- offsetAtEnd: anchorElement && anchorElement.getText().length === selection.anchorOffset
+ offset: getOffset('anchor'),
+ offsetAtBeginning: getOffset('anchor') === 0,
+ offsetAtEnd: selection.anchorNode.data.length === getOffset('anchor')
};
}
if(which === 'focus') {
return {
element: focusElement,
- offset: selection.focusOffset,
- offsetAtBeginning: selection.focusOffset === 0,
- offsetAtEnd: focusElement && focusElement.getText().length === selection.focusOffset
+ offset: getOffset('focus'),
+ offsetAtBeginning: getOffset('focus') === 0,
+ offsetAtEnd: selection.focusNode.data.length === getOffset('focus')
};
}
if(anchorFirst) {
if(which === 'start') {
element = anchorElement;
- offset = selection.anchorOffset;
+ offset = getOffset('anchor')
}
else if(which === 'end') {
element = focusElement,
- offset = selection.focusOffset;
+ offset = getOffset('focus')
}
} else {
if(which === 'start') {
element = focusElement,
- offset = selection.focusOffset
+ offset = getOffset('focus')
}
else if(which === 'end') {
element = anchorElement;
- offset = selection.anchorOffset;
+ offset = getOffset('anchor')
}
}
} else {
// TODO: Handle order via https://developer.mozilla.org/en-US/docs/Web/API/Node.compareDocumentPosition
if(which === 'start') {
element = anchorElement;
- offset = selection.anchorOffset
+ offset = getOffset('anchor')
} else {
element = focusElement;
- offset = selection.focusOffset
+ offset = getOffset('focus')
}
}
+ var nodeLen = (element.sameNode(focusElement) ? selection.focusNode : selection.anchorNode).length;
return {
element: element,
offset: offset,
offsetAtBeginning: offset === 0,
- offsetAtEnd: element.getText().length === offset
+ offsetAtEnd: nodeLen === offset
}
}
})
fnp / fnpeditor.git / blobdiff