X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/22e9258db6c11e6e0b042e142836cdb21399cc7b..ec10eee3168f37beedfb5dea757a4bdec2f2f36e:/src/editor/modules/documentCanvas/canvas/keyboard.js?ds=inline diff --git a/src/editor/modules/documentCanvas/canvas/keyboard.js b/src/editor/modules/documentCanvas/canvas/keyboard.js index f879851..bd66c6e 100644 --- a/src/editor/modules/documentCanvas/canvas/keyboard.js +++ b/src/editor/modules/documentCanvas/canvas/keyboard.js @@ -1,10 +1,11 @@ define([ +'libs/jquery', 'modules/documentCanvas/canvas/documentElement', 'modules/documentCanvas/canvas/utils' -], function(documentElement, utils) { +], function($, documentElement, utils) { 'use strict'; - +/* globals gettext */ var KEYS = { ENTER: 13, @@ -36,6 +37,55 @@ var handles = function(handler, event) { return false; }; + +var scroll = function(place, textElement) { + var rect = textElement.getBoundingClientRect(), + scroll = $('#rng-module-documentCanvas-contentWrapper'), + border = rect.bottom - (place === 'top' ? rect.height : 0) - scroll.offset().top + scroll[0].scrollTop, + visible = scroll[0].scrollTop + {top: 0, bottom: scroll.height()}[place], + padding = 16, + toScroll = 0; + + if(place === 'top' && (border - padding < visible)) { + toScroll = border - visible - padding; + } else if(place === 'bottom' && (border + padding > visible)) { + toScroll = border - visible + padding; + } + if(toScroll) { + scroll[0].scrollTop = scroll[0].scrollTop + toScroll; + } + return toScroll; +}; + +var getLastRectAbove = function(node, y) { + var rects = node.getClientRects(), + idx = 0, + rect, toret; + while((rect = rects[idx])) { + if(rect.bottom < y) { + toret = rect; + } else { + break; + } + idx++; + } + return toret; +}; + +var getFirstRectBelow = function(node, y) { + var rects = node.getClientRects(), + idx = 0, + rect, toret; + while((rect = rects[idx])) { + if(rect.top > y) { + toret = rect; + break; + } + idx++; + } + return toret; +}; + var handlers = []; @@ -44,20 +94,27 @@ handlers.push({key: KEYS.ENTER, event.preventDefault(); var cursor = canvas.getCursor(), position = cursor.getPosition(), - element = position.element, - added; + element = position.element; if(Object.keys(cursor.getPosition()).length === 0) { var currentElement = canvas.getCurrentNodeElement(); - if(currentElement) { - canvas.wlxmlDocument.startTransaction(); - added = currentElement.wlxmlNode.after({ - tagName: currentElement.getWlxmlTag() || 'div', - attrs: {'class': currentElement.getWlxmlClass() || 'p'} + 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'}); + } }); - added.append({text:''}); - canvas.wlxmlDocument.endTransaction(); - canvas.setCurrentElement(utils.findCanvasElement(added), {caretTo: 'start'}); + } return; } @@ -68,13 +125,20 @@ handlers.push({key: KEYS.ENTER, element = element.parent(); } - canvas.wlxmlDocument.startTransaction(); - added = element.wlxmlNode.after( - {tagName: element.getWlxmlTag() || 'div', attrs: {'class': element.getWlxmlClass() || 'p'}} - ); - added.append({text: ''}); - canvas.wlxmlDocument.endTransaction(); - canvas.setCurrentElement(utils.findCanvasElement(added), {caretTo: 'start'}); + 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 { @@ -82,27 +146,17 @@ handlers.push({key: KEYS.ENTER, return false; // top level element is unsplittable } - //var nodes = position.element.data('wlxmlNode').split({offset: position.offset}), - // var nodes = position.element.data('wlxmlNode').transform('split', {offset: position.offset}), - // newEmpty, - // goto, - // gotoOptions; + 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(position.offsetAtBeginning) - // newEmpty = nodes.first; - // else if(position.offsetAtEnd) - // newEmpty = nodes.second; - - // if(newEmpty) { - // //goto = newEmpty.append({text: ''}); - // gotoOptions = {}; - // } else { - // goto = nodes.second; - // gotoOptions = {caretTo: 'start'}; - // } - - var result = position.element.wlxmlNode.breakContent({offset: position.offset}), - goto, gotoOptions; if(result.emptyText) { goto = result.emptyText; gotoOptions = {}; @@ -111,57 +165,112 @@ handlers.push({key: KEYS.ENTER, gotoOptions = {caretTo: 'start'}; } - canvas.setCurrentElement(utils.findCanvasElement(goto), gotoOptions); + canvas.setCurrentElement(utils.getElementForNode(goto), gotoOptions); } } } }); -handlers.push({keys: [KEYS.ARROW_UP, KEYS.ARROW_DOWN, KEYS.ARROW_LEFT, KEYS.ARROW_RIGHT], +handlers.push({keys: [KEYS.ARROW_UP], keydown: function(event, canvas) { - var position = canvas.getCursor().getPosition(), - element = position.element; - if(element && (element instanceof documentElement.DocumentTextElement) && element.isEmpty()) { - var direction, caretTo; - if(event.which === KEYS.ARROW_LEFT || event.which === KEYS.ARROW_UP) { - direction = 'above'; - caretTo = 'end'; - } else { - direction = 'below'; - caretTo = 'start'; - } - var el = canvas.getDocumentElement(utils.nearestInDocumentOrder('[document-text-element]', direction, element.dom()[0])); - if(el) { - canvas.setCurrentElement(el, {caretTo: caretTo}); + /* 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}); } } - }, - keyup: function(event, canvas) { + } +}); + +handlers.push({keys: [KEYS.ARROW_DOWN], + keydown: function(event, canvas) { + /* globals window */ var element = canvas.getCursor().getPosition().element, - caretTo = false; - if(!element) { - // Chrome hack + caretRect = window.getSelection().getRangeAt(0).getClientRects()[0], + frameRects = element.dom[0].getClientRects(), + lastRect = frameRects[frameRects.length-1], + position, target,rect, scrolled; - var moves = [{direction: 'above', caretTo: 'end'}, {direction: 'below', caretTo: 'start'}]; - if(event.which === KEYS.ARROW_RIGHT || event.which === KEYS.ARROW_DOWN) { - moves.reverse(); - } - moves.some(function(move) { - /* globals window */ - var targetNode = utils.nearestInDocumentOrder('[document-text-element]:visible', move.direction, window.getSelection().focusNode); - if(targetNode) { - element = canvas.getDocumentElement(targetNode); - caretTo = move.caretTo; - return true; // break + 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; } }); + if(target) { + scrolled = scroll('bottom', target); + position = utils.caretPositionFromPoint(caretRect.left, rect.top +1 - scrolled); + canvas.setCurrentElement(canvas.getDocumentElement(position.textNode), {caretTo: position.offset}); + } } - if(element) { - canvas.setCurrentElement(element, {caretTo: caretTo}); + } +}); + +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'}); + } } } }); +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'}); + } + } + + } +}); var selectsWholeTextElement = function(cursor) { if(cursor.isSelecting() && cursor.getSelectionStart().offsetAtBeginning && cursor.getSelectionEnd().offsetAtEnd) { @@ -183,25 +292,28 @@ handlers.push({keys: [KEYS.BACKSPACE, KEYS.DELETE], var cursor = canvas.getCursor(), position = canvas.getCursor().getPosition(), element = position.element, - node = element.wlxmlNode, + 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() && !cursor.isSelectingWithinElement()) { + if(cursor.isSelecting()) { event.preventDefault(); var start = cursor.getSelectionStart(), end = cursor.getSelectionEnd(); if(direction === 'above') { if(start.offsetAtBeginning) { - goto = start.element.getNearestTextElement('above'); + goto = canvas.getNearestTextElement('above', start.element); caretTo = 'end'; } else { goto = start.element; @@ -209,7 +321,7 @@ handlers.push({keys: [KEYS.BACKSPACE, KEYS.DELETE], } } else { if(end.offsetAtEnd) { - goto = start.element.getNearestTextElement('below'); + goto = canvas.getNearestTextElement('below', start.element); caretTo = 'start'; } else { goto = end.element; @@ -247,42 +359,186 @@ handlers.push({keys: [KEYS.BACKSPACE, KEYS.DELETE], event.preventDefault(); node.setText(''); } - else if(element.isEmpty()) { - event.preventDefault(); - var parent = element.parent(), - grandParent = parent ? parent.parent() : null; - if(!grandParent && parent.children().length === 1) { - return; - } - if(parent.children().length === 1 && parent.children()[0].sameNode(element)) { - if(grandParent && grandParent.children().length === 1) { - goto = grandParent.wlxmlNode.append({text: ''}); - } else { - goto = element.getNearestTextElement(direction); - } - parent.wlxmlNode.detach(); - } else { - goto = element.getNearestTextElement(direction); - element.wlxmlNode.detach(); - } - canvas.setCurrentElement(goto, {caretTo: caretTo}); - } else if(cursorAtOperationEdge) { if(direction === 'below') { - element = element.getNearestTextElement(direction); + element = canvas.getNearestTextElement(direction, element); } - if(element) { - goto = element.wlxmlNode.mergeContentUp(); - canvas.setCurrentElement(goto.node, {caretTo: goto.offset}); + 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; + } + }); +}; +// todo: whileRemoveWholetext +var keyEventHandlers = [ + { + applies: function(e, s) { + return s.type === 'caret' && ( + (s.isAtBeginning() && e.key === KEYS.BACKSPACE) || + (s.isAtEnd() && e.key === KEYS.DELETE) + ); + }, + run: function(e,s) { + var direction, caretTo, cursorAtOperationEdge, 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); + } + + if(!cursorAtOperationEdge || !element) { + return; + } + + e.preventDefault(); + + 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}); + } + } + }, { + metadata: { + description: gettext('Remove text') + } + }); + } + }, + + { + 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.canvas.setCurrentElement(s.element, {caretTo: 0}); + } + }, + + { + applies: function(e, s) { + return s.type === 'textSelection' && (e.key === KEYS.BACKSPACE || e.key === KEYS.DELETE); + }, + run: function(e, s) { + var direction = 'above', + caretTo = 'end', + goto; + + if(e.key === KEYS.DELETE) { + direction = 'below'; + caretTo = 'start'; + } + + e.preventDefault(); + + if(s.startsAtBeginning && s.endsAtEnd && s.startElement.sameNode(s.endElement)) { + goto = s.startElement; + caretTo = s.startOffset; + } else if(direction === 'above') { + if(s.startsAtBeginning()) { + goto = s.canvas.getNearestTextElement('above', s.startElement); + caretTo = 'end'; + } else { + goto = s.startElement; + caretTo = s.startOffset; + } + } else { + if(s.endsAtEnd()) { + goto = s.canvas.getNearestTextElement('below', s.startElement); + caretTo = 'start'; + } else { + goto = s.endElement; + caretTo = 0; + } + } + + var doc = s.canvas.wlxmlDocument; + doc.transaction(function() { + + doc.deleteText({ + from: { + node: s.startElement.wlxmlNode, + offset: s.startOffset + }, + to: { + node: s.endElement.wlxmlNode, + offset: s.endOffset + } + }); + + }, { + success: function() { + if(goto) { + s.canvas.setCurrentElement(goto, {caretTo: caretTo}); + } + } + }); + + } + }, + { + applies: function(e, s) { + return s.type === 'caret' && e.key === KEYS.ENTER && !s.element.parent().isRootElement(); + }, + run: function(e, s) { + var result, goto, gotoOptions; + void(e); + e.preventDefault(); + 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); + } + } +]; + return { - handleKey: handleKey + handleKey: handleKey, + handleKeyEvent: handleKeyEvent, + KEYS: KEYS }; }); \ No newline at end of file