X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/3cf3a2daadbd34576c9ae6cb4f96caef23c4e07d..b53df8a58d8dafedf5daf3275243acb8ae3c99f0:/modules/documentCanvas/canvas/canvas.js diff --git a/modules/documentCanvas/canvas/canvas.js b/modules/documentCanvas/canvas/canvas.js index 45147d1..7428e10 100644 --- a/modules/documentCanvas/canvas/canvas.js +++ b/modules/documentCanvas/canvas/canvas.js @@ -1,13 +1,15 @@ 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() {}; }; @@ -19,7 +21,8 @@ $.extend(Canvas.prototype, { if(d) { this.wrapper = $('
').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')) @@ -39,8 +42,9 @@ $.extend(Canvas.prototype, { klass: currentTag.attr('class'), meta: meta, others: others, - rawChildren: currentTag.contents() - }); + rawChildren: currentTag.contents(), + prepopulateOnEmpty: true + }, canvas); ['orig-before', 'orig-after', 'orig-begin', 'orig-end'].forEach(function(attr) { element.data(attr, ''); @@ -68,7 +72,7 @@ $.extend(Canvas.prototype, { hasSpanBefore = el.prev().length > 0 && getNode($(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')) + if(el.parent().hasClass('canvas-widget') || elParent.attr('document-text-element') !== undefined) return true; // continue var addInfo = function(toAdd, where) { @@ -137,35 +141,15 @@ $.extend(Canvas.prototype, { 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) { @@ -182,16 +166,18 @@ $.extend(Canvas.prototype, { direction = 'below'; caretTo = 'start'; } - element = canvas.getDocumentElement(utils.nearestInDocumentOrder('[document-text-element]', direction, window.getSelection().focusNode)); + 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) { - var position = canvas.getCursor().getPosition(), - element = position.element; + if(element && (element instanceof documentElement.DocumentTextElement)) { if(element.isEmpty()) { var direction, caretTo; @@ -202,8 +188,8 @@ $.extend(Canvas.prototype, { direction = 'below'; caretTo = 'start'; } - var el = canvas.getDocumentElement(utils.nearestInDocumentOrder('[document-text-element]', direction, window.getSelection().focusNode)) - canvas.setCurrentElement(element, {caretTo: caretTo}); + var el = canvas.getDocumentElement(utils.nearestInDocumentOrder('[document-text-element]', direction, element.dom()[0])); + canvas.setCurrentElement(el, {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) { @@ -219,6 +205,111 @@ $.extend(Canvas.prototype, { } + + 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; + } + + var willDeleteWholeText = function() { + return element.getText().length === 1 || selectsWholeTextElement(); + } + + if(willDeleteWholeText()) { + 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 && parent.children()[0].sameNode(element)) { + 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}); + canvas.publisher('contentChanged'); + } + 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) { @@ -228,8 +319,17 @@ $.extend(Canvas.prototype, { 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)) { + observer.disconnect(); + if(mutation.target.data === '') + mutation.target.data = utils.unicode.ZWS; + else if(mutation.oldValue === utils.unicode.ZWS) { + mutation.target.data = mutation.target.data.replace(utils.unicode.ZWS, ''); + canvas._moveCaretToTextElement(canvas.getDocumentElement(mutation.target), 'end'); + } + observer.observe(canvas.d[0], config); + canvas.publisher('contentChanged'); + } }); }); var config = { attributes: false, childList: false, characterData: true, subtree: true, characterDataOldValue: true}; @@ -255,6 +355,13 @@ $.extend(Canvas.prototype, { 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; } @@ -310,6 +417,59 @@ $.extend(Canvas.prototype, { 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); @@ -456,7 +616,8 @@ $.extend(Canvas.prototype.list, { var toret; if(parent.is('list')) { - listElement.wrapWithNodeElement({tag: 'div', klass: 'item'}); + var item = listElement.wrapWithNodeElement({tag: 'div', klass: 'item'}); + item.exec('toggleBullet', false); toret = listElement.parent(); } else { toret = listElement; @@ -584,7 +745,7 @@ $.extend(Cursor.prototype, { anchorElement = this.canvas.getDocumentElement(selection.anchorNode), focusElement = this.canvas.getDocumentElement(selection.focusNode); - if(anchorElement instanceof documentElement.DocumentNodeElement || focusElement instanceof documentElement.DocumentNodeElement) + if((!anchorElement) || (anchorElement instanceof documentElement.DocumentNodeElement) || (!focusElement) || focusElement instanceof documentElement.DocumentNodeElement) return {}; if(which === 'anchor') { @@ -592,7 +753,7 @@ $.extend(Cursor.prototype, { element: anchorElement, offset: selection.anchorOffset, offsetAtBeginning: selection.anchorOffset === 0, - offsetAtEnd: anchorElement && anchorElement.getText().length === selection.anchorOffset + offsetAtEnd: selection.anchorNode.data.length === selection.anchorOffset }; } if(which === 'focus') { @@ -600,7 +761,7 @@ $.extend(Cursor.prototype, { element: focusElement, offset: selection.focusOffset, offsetAtBeginning: selection.focusOffset === 0, - offsetAtEnd: focusElement && focusElement.getText().length === selection.focusOffset + offsetAtEnd: selection.focusNode.data.length === selection.focusOffset }; } @@ -613,11 +774,11 @@ $.extend(Cursor.prototype, { if(anchorFirst) { if(which === 'start') { element = anchorElement; - offset = selection.anchorOffset; + offset = selection.anchorOffset } else if(which === 'end') { element = focusElement, - offset = selection.focusOffset; + offset = selection.focusOffset } } else { if(which === 'start') { @@ -626,7 +787,7 @@ $.extend(Cursor.prototype, { } else if(which === 'end') { element = anchorElement; - offset = selection.anchorOffset; + offset = selection.anchorOffset } } } else { @@ -640,11 +801,12 @@ $.extend(Cursor.prototype, { } } + 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 } } })