X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/ff3715ae2dc79eda1edd45d462e5cc0c3e9803e4..a5b0d59:/src/editor/modules/documentCanvas/canvas/keyboard.js diff --git a/src/editor/modules/documentCanvas/canvas/keyboard.js b/src/editor/modules/documentCanvas/canvas/keyboard.js index b39a900..99201bc 100644 --- a/src/editor/modules/documentCanvas/canvas/keyboard.js +++ b/src/editor/modules/documentCanvas/canvas/keyboard.js @@ -1,8 +1,7 @@ define([ 'libs/jquery', -'modules/documentCanvas/canvas/documentElement', 'modules/documentCanvas/canvas/utils' -], function($, documentElement, utils) { +], function($, utils) { 'use strict'; /* globals gettext */ @@ -18,26 +17,6 @@ var KEYS = { X: 88 }; -var handleKey = function(event, canvas) { - handlers.some(function(handler) { - if(handles(handler, event) && handler[event.type]) { - handler[event.type](event, canvas); - return true; - } - }); -}; - -var handles = function(handler, event) { - if(handler.key === event.which) { - return true; - } - if(handler.keys && handler.keys.indexOf(event.which) !== -1) { - return true; - } - return false; -}; - - var scroll = function(place, textElement) { var rect = textElement.getBoundingClientRect(), scroll = $('#rng-module-documentCanvas-contentWrapper'), @@ -86,310 +65,172 @@ var getFirstRectBelow = function(node, y) { return toret; }; -var handlers = []; - - -handlers.push({key: KEYS.ENTER, - keydown: function(event, canvas) { - event.preventDefault(); - var cursor = canvas.getCursor(), - position = cursor.getPosition(), - element = position.element; - - if(Object.keys(cursor.getPosition()).length === 0) { - var currentElement = canvas.getCurrentNodeElement(); - if(currentElement && !currentElement.wlxmlNode.isRoot()) { - canvas.wlxmlDocument.transaction(function() { - var added = currentElement.wlxmlNode.after({ - tagName: currentElement.wlxmlNode.getTagName() || 'div', - attrs: {'class': currentElement.wlxmlNode.getClass() || 'p'} - }); - added.append({text:''}); - return added; - }, { - metadata: { - description: gettext('Splitting text') - }, - success: function(ret) { - canvas.setCurrentElement(utils.getElementForNode(ret), {caretTo: 'start'}); - } - }); - - } - return; +var handleKeyEvent = function(e, s) { + keyEventHandlers.some(function(handler) { + if(handler.applies(e, s)) { + handler.run(e, s); + return true; } + }); +}; +// todo: whileRemoveWholetext +var keyEventHandlers = [ + { // ctrl+x - prevented (?) + applies: function(e, s) { + return e.ctrlKey && + e.key === KEYS.X && + s.type === 'textSelection' && + s.startsAtBeginning() && + s.endsAtEnd(); + }, + run: function(e,s) { + void(s); + e.preventDefault(); + } + }, + { + applies: function(e, s) { + return e.key === KEYS.ARROW_UP && s.type === 'caret'; + }, + run: function(e, s) { + /* globals window */ + var caretRect = window.getSelection().getRangeAt(0).getClientRects()[0], + frameRects = s.element.dom[0].getClientRects(), + caretTop = caretRect.bottom - caretRect.height, + position, target,rect, scrolled; - if(!cursor.isSelecting()) { - if(event.ctrlKey) { - if(element instanceof documentElement.DocumentTextElement) { - element = element.parent(); - } - - canvas.wlxmlDocument.transaction(function() { - var added = element.wlxmlNode.after( - {tagName: element.wlxmlNode.getTagName() || 'div', attrs: {'class': element.wlxmlNode.getClass() || 'p'}} - ); - added.append({text: ''}); - return added; - }, { - metadata: { - description: gettext('Splitting text') - }, - success: function(ret) { - canvas.setCurrentElement(utils.getElementForNode(ret), {caretTo: 'start'}); - } - }); - - } else { - - if(!(element.parent().parent())) { - return false; // top level element is unsplittable - } - - var node = position.element.wlxmlNode, - result, goto, gotoOptions; - - node.document.transaction(function() { - result = position.element.wlxmlNode.breakContent({offset: position.offset}); - }, { - metadata: { - description: gettext('Splitting text') + + if((frameRects[0].bottom === caretRect.bottom) || (caretRect.left < frameRects[0].left)) { + e.preventDefault(); + s.canvas.rootWrapper.find('[document-text-element]').each(function() { + var test = getLastRectAbove(this, caretTop); + if(test) { + target = this; + rect = test; + } else { + return false; } }); - - if(result.emptyText) { - goto = result.emptyText; - gotoOptions = {}; - } else { - goto = result.second; - gotoOptions = {caretTo: 'start'}; + if(target) { + scrolled = scroll('top', target); + position = utils.caretPositionFromPoint(caretRect.left, rect.bottom - 1 - scrolled); + s.canvas.setCurrentElement(s.canvas.getDocumentElement(position.textNode), {caretTo: position.offset}); } - - canvas.setCurrentElement(utils.getElementForNode(goto), gotoOptions); } - } - } -}); - -handlers.push({keys: [KEYS.ARROW_UP], - keydown: function(event, canvas) { - /* globals window */ - var element = canvas.getCursor().getPosition().element, - caretRect = window.getSelection().getRangeAt(0).getClientRects()[0], - frameRects = element.dom[0].getClientRects(), - caretTop = caretRect.bottom - caretRect.height, - position, target,rect, scrolled; - - - if((frameRects[0].bottom === caretRect.bottom) || (caretRect.left < frameRects[0].left)) { - event.preventDefault(); - canvas.rootWrapper.find('[document-text-element]').each(function() { - var test = getLastRectAbove(this, caretTop); - if(test) { - target = this; - rect = test; - } else { - return false; - } - }); if(target) { scrolled = scroll('top', target); - position = utils.caretPositionFromPoint(caretRect.left, rect.bottom - 1 - scrolled); - canvas.setCurrentElement(canvas.getDocumentElement(position.textNode), {caretTo: position.offset}); + var left = caretRect.left; + if(left > rect.left + rect.width) { + left = rect.left + rect.width; + } else if(left < rect.left ) { + left = rect.left; + } + position = utils.caretPositionFromPoint(left, rect.bottom - 1 - scrolled); + s.canvas.setCurrentElement(s.canvas.getDocumentElement(position.textNode), {caretTo: position.offset}); } } - } -}); - -handlers.push({keys: [KEYS.ARROW_DOWN], - keydown: function(event, canvas) { - /* globals window */ - var element = canvas.getCursor().getPosition().element, - caretRect = window.getSelection().getRangeAt(0).getClientRects()[0], - frameRects = element.dom[0].getClientRects(), - lastRect = frameRects[frameRects.length-1], - position, target,rect, scrolled; - - if(lastRect.bottom === caretRect.bottom || (caretRect.left > lastRect.left + lastRect.width)) { - event.preventDefault(); - canvas.rootWrapper.find('[document-text-element]').each(function() { - var test = getFirstRectBelow(this, caretRect.bottom); - if(test) { - target = this; - rect = test; - return false; + }, + { + applies: function(e, s) { + return e.key === KEYS.ARROW_DOWN && s.type === 'caret'; + }, + run: function(e, s) { + /* globals window */ + var caretRect = window.getSelection().getRangeAt(0).getClientRects()[0], + frameRects = s.element.dom[0].getClientRects(), + lastRect = frameRects[frameRects.length-1], + position, target,rect, scrolled; + + if(lastRect.bottom === caretRect.bottom || (caretRect.left > lastRect.left + lastRect.width)) { + e.preventDefault(); + s.canvas.rootWrapper.find('[document-text-element]').each(function() { + var test = getFirstRectBelow(this, caretRect.bottom); + if(test) { + target = this; + rect = test; + return false; + } + }); + if(target) { + scrolled = scroll('bottom', target); + position = utils.caretPositionFromPoint(caretRect.left, rect.top +1 - scrolled); + s.canvas.setCurrentElement(s.canvas.getDocumentElement(position.textNode), {caretTo: position.offset}); } - }); + } if(target) { scrolled = scroll('bottom', target); - position = utils.caretPositionFromPoint(caretRect.left, rect.top +1 - scrolled); - canvas.setCurrentElement(canvas.getDocumentElement(position.textNode), {caretTo: position.offset}); - } - } - } -}); - -handlers.push({keys: [KEYS.ARROW_LEFT], - keydown: function(event, canvas) { - /* globals window */ - var position = canvas.getCursor().getPosition(), - element = position.element, - prev; - - if(position.offset === 0) { - event.preventDefault(); - prev = canvas.getPreviousTextElement(element); - if(prev) { - scroll('top', prev.dom[0]); - canvas.setCurrentElement(canvas.getDocumentElement(prev.dom.contents()[0]), {caretTo: 'end'}); + var left = caretRect.left; + if(left > rect.left + rect.width) { + left = rect.left + rect.width; + } else if(left < rect.left ) { + left = rect.left; + } + position = utils.caretPositionFromPoint(left, rect.top +1 - scrolled); + s.canvas.setCurrentElement(s.canvas.getDocumentElement(position.textNode), {caretTo: position.offset}); } } - } -}); - -handlers.push({keys: [KEYS.ARROW_RIGHT], - keydown: function(event, canvas) { - /* globals window */ - var position = canvas.getCursor().getPosition(), - element = position.element, - next; - if(position.offsetAtEnd) { - event.preventDefault(); - next = canvas.getNextTextElement(element); - if(next) { - scroll('bottom', next.dom[0]); - canvas.setCurrentElement(canvas.getDocumentElement(next.dom.contents()[0]), {caretTo: 0}); - } - } else { - var secondToLast = (position.offset === element.wlxmlNode.getText().length -1); - if(secondToLast) { - // Only Flying Spaghetti Monster knows why this is need for FF (for versions at least 26 to 31) - event.preventDefault(); - canvas.setCurrentElement(element, {caretTo: 'end'}); + }, + { + applies: function(e, s) { + return e.key === KEYS.ARROW_LEFT && s.type === 'caret'; + }, + run: function(e, s) { + /* globals window */ + var prev; + + if(s.offset === 0) { + e.preventDefault(); + prev = s.canvas.getPreviousTextElement(s.element); + if(prev) { + scroll('top', prev.dom[0]); + s.canvas.setCurrentElement(s.canvas.getDocumentElement(prev.dom.contents()[0]), {caretTo: 'end'}); + } } } - - } -}); - -var selectsWholeTextElement = function(cursor) { - if(cursor.isSelecting() && cursor.getSelectionStart().offsetAtBeginning && cursor.getSelectionEnd().offsetAtEnd) { - return true; - } - return false; -}; - -handlers.push({key: KEYS.X, - keydown: function(event, canvas) { - if(event.ctrlKey && selectsWholeTextElement(canvas.getCursor())) { - event.preventDefault(); - } - } -}); - -handlers.push({keys: [KEYS.BACKSPACE, KEYS.DELETE], - keydown: function(event, canvas) { - var cursor = canvas.getCursor(), - position = canvas.getCursor().getPosition(), - element = position.element, - node = element ? element.wlxmlNode : null, - direction = 'above', - caretTo = 'end', - goto; - - if(!element || !node) { - return; - } - - if(event.which === KEYS.DELETE) { - direction = 'below'; - caretTo = 'start'; - } - - if(cursor.isSelecting()) { - event.preventDefault(); - var start = cursor.getSelectionStart(), - end = cursor.getSelectionEnd(); - - if(direction === 'above') { - if(start.offsetAtBeginning) { - goto = canvas.getNearestTextElement('above', start.element); - caretTo = 'end'; - } else { - goto = start.element; - caretTo = start.offset; + }, + { + applies: function(e, s) { + return e.key === KEYS.ARROW_RIGHT && s.type === 'caret'; + }, + run: function(e, s) { + /* globals window */ + var next; + if(s.isAtEnd()) { + e.preventDefault(); + next = s.canvas.getNextTextElement(s.element); + if(next) { + scroll('bottom', next.dom[0]); + s.canvas.setCurrentElement(s.canvas.getDocumentElement(next.dom.contents()[0]), {caretTo: 0}); } } else { - if(end.offsetAtEnd) { - goto = canvas.getNearestTextElement('below', start.element); - caretTo = 'start'; - } else { - goto = end.element; - caretTo = 0; + var secondToLast = (s.offset === s.element.wlxmlNode.getText().length -1); + if(secondToLast) { + // Only Flying Spaghetti Monster knows why this is need for FF (for versions at least 26 to 31) + e.preventDefault(); + s.canvas.setCurrentElement(s.element, {caretTo: 'end'}); } } - - canvas.wlxmlDocument.deleteText({ - from: { - node: start.element.wlxmlNode, - offset: start.offset - }, - to: { - node: end.element.wlxmlNode, - offset: end.offset - } - }); - if(goto) { - canvas.setCurrentElement(goto, {caretTo: caretTo}); - } - return; - } - - var cursorAtOperationEdge = position.offsetAtBeginning; - if(event.which === KEYS.DELETE) { - cursorAtOperationEdge = position.offsetAtEnd; } - - var willDeleteWholeText = function() { - return element.getText().length === 1 || selectsWholeTextElement(cursor); - }; - - canvas.wlxmlDocument.transaction(function() { - if(willDeleteWholeText()) { - event.preventDefault(); - node.setText(''); - } - else if(cursorAtOperationEdge) { - if(direction === 'below') { - element = canvas.getNearestTextElement(direction, element); - } - if(element && element.wlxmlNode.getIndex() === 0) { - goto = element.wlxmlNode.parent().moveUp(); - if(goto) { - canvas.setCurrentElement(goto.node, {caretTo: goto.offset}); - } - } - event.preventDefault(); - } - }, { - metadata: { - description: gettext('Remove text') - } - }); - } -}); - -var handleKeyEvent = function(e, s) { - keyEventHandlers.some(function(handler) { - if(handler.applies(e, s)) { - handler.run(e, s); - return true; + }, + { // backspace removing the last character in a span + applies: function(e, s) { + return s.type === 'caret' && + s.element.wlxmlNode.parent().is({tagName: 'span'}) && + s.element.wlxmlNode.getText().length === 1 && + s.offset === 1 && + (e.key === KEYS.BACKSPACE); + }, + run: function(e, s) { + var params = {}, + prevTextNode = s.element.canvas.getPreviousTextElement(s.element).wlxmlNode; + e.preventDefault(); + s.element.wlxmlNode.parent().detach(params); + s.canvas.setCurrentElement( + (params.ret && params.ret.mergedTo) || prevTextNode, + {caretTo: params.ret ? params.ret.previousLen : (prevTextNode ? prevTextNode.getText().length : 0)}); } - }); -}; -// todo: whileRemoveWholetext -var keyEventHandlers = [ - { + }, + { // backspace/delete through an edge (behaves weirdly at spans) applies: function(e, s) { return s.type === 'caret' && ( (s.isAtBeginning() && e.key === KEYS.BACKSPACE) || @@ -397,33 +238,36 @@ var keyEventHandlers = [ ); }, run: function(e,s) { - var direction, caretTo, cursorAtOperationEdge, goto, element; + var goto, element; if(e.key === KEYS.BACKSPACE) { - direction = 'above'; - caretTo = 'end'; - cursorAtOperationEdge = s.isAtBeginning(); element = s.element; } else { - direction = 'below'; - caretTo = 'start'; - cursorAtOperationEdge = s.isAtEnd(); - element = cursorAtOperationEdge && s.canvas.getNearestTextElement(direction, s.element); + element = s.canvas.getNearestTextElement('below', s.element); } - if(!cursorAtOperationEdge || !element) { + e.preventDefault(); + + if(!element) { return; } - e.preventDefault(); + var parent = element.wlxmlNode.parent(); + if(element.wlxmlNode.getIndex() === 0 && parent.isContextRoot() && (!parent.is('item') || parent.getIndex() === 0)) { + // Don't even try to do anything at the edge of a context root, except for non-first items + // - this is a temporary solution until key events handling get refactored into something more sane. + return; + } s.canvas.wlxmlDocument.transaction(function() { if(element.wlxmlNode.getIndex() === 0) { goto = element.wlxmlNode.parent().moveUp(); - if(goto) { - s.canvas.setCurrentElement(goto.node, {caretTo: goto.offset}); - } + } else { + goto = element.wlxmlNode.moveUp(); + } + if(goto) { + s.canvas.setCurrentElement(goto.node, {caretTo: goto.offset}); } }, { metadata: { @@ -433,13 +277,13 @@ var keyEventHandlers = [ } }, - { + { // backspace/delete last character in a node - why is it needed? applies: function(e,s) { return s.type === 'caret' && s.element.getText().length === 1 && (e.key === KEYS.BACKSPACE || e.key === KEYS.DELETE); }, run: function(e,s) { e.preventDefault(); - e.element.wlxmlNode.setText(''); + s.element.wlxmlNode.setText(''); s.canvas.setCurrentElement(s.element, {caretTo: 0}); } }, @@ -504,11 +348,95 @@ var keyEventHandlers = [ }); } + }, + { // enter on an empty list item - creates paragraph after list + applies: function(e, s) { + var parent = s.element && s.element.wlxmlNode.parent(), + parentIsItem = parent && parent.is('item'), + itemIsOnList = parent && parent.parent() && parent.parent().is('list'), + onlyChild = parent.contents().length === 1; + return s.type === 'caret' && e.key === KEYS.ENTER && s.element.isEmpty() && onlyChild && + parentIsItem && itemIsOnList; + }, + run: function(e, s) { + var item = s.element.wlxmlNode.parent(), + list = item.parent(); + e.preventDefault(); + s.canvas.wlxmlDocument.transaction(function() { + var p = list.after({tagName: 'div', attrs: {'class': 'p'}}); + p.append({text: ''}); + item.detach(); + if(list.contents().length === 0) { + list.detach(); + } + return p; + }, { + success: function(p) { + s.canvas.setCurrentElement(p); + } + }); + } + }, + { // enter - split node + applies: function(e, s) { + return s.type === 'caret' && e.key === KEYS.ENTER && !s.element.parent().isRootElement(); + }, + run: function(e, s) { + var parent = s.element.parent(), + children = parent.children(), + result, goto, gotoOptions; + void(e); + e.preventDefault(); + + if(children.length === 1 && s.element.isEmpty()) { + return; + } + + s.canvas.wlxmlDocument.transaction(function() { + result = s.element.wlxmlNode.breakContent({offset: s.offset}); + }, { + metadata: { + description: gettext('Splitting text'), + fragment: s.toDocumentFragment() + } + }); + + if(result.emptyText) { + goto = result.emptyText; + gotoOptions = {}; + } else { + goto = result.second; + gotoOptions = {caretTo: 'start'}; + } + + s.canvas.setCurrentElement(utils.getElementForNode(goto), gotoOptions); + } + }, + { // enter - new paragraph after image/video + applies: function (e, s) { + return s.type === 'nodeSelection' && e.key === KEYS.ENTER && !s.element.isRootElement(); + }, + run: function (e, s) { + var parent = s.element.parent(), + children = parent.children(), + result, goto, gotoOptions; + e.preventDefault(); + + s.canvas.wlxmlDocument.transaction(function() { + result = s.element.wlxmlNode.insertNewNode(); + }, { + metadata: { + description: gettext('Inserting node'), + fragment: s.toDocumentFragment() + } + }); + + s.canvas.setCurrentElement(utils.getElementForNode(result), {caretTo: 'start'}); + } } ]; return { - handleKey: handleKey, handleKeyEvent: handleKeyEvent, KEYS: KEYS };