X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/f098ff9873de73d1fd6d71ce64b83ae318e8bd7e..f0c9be9018a20f7325bdd5efbbf951f1a0fd5699:/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 4cf3d77..9f58066 100644 --- a/src/editor/modules/documentCanvas/canvas/keyboard.js +++ b/src/editor/modules/documentCanvas/canvas/keyboard.js @@ -1,7 +1,8 @@ define([ +'libs/jquery', 'modules/documentCanvas/canvas/documentElement', 'modules/documentCanvas/canvas/utils' -], function(documentElement, utils) { +], function($, documentElement, utils) { 'use strict'; /* globals gettext */ @@ -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 = []; @@ -48,11 +98,11 @@ handlers.push({key: KEYS.ENTER, if(Object.keys(cursor.getPosition()).length === 0) { var currentElement = canvas.getCurrentNodeElement(); - if(currentElement) { + if(currentElement && !currentElement.wlxmlNode.isRoot()) { canvas.wlxmlDocument.transaction(function() { var added = currentElement.wlxmlNode.after({ - tagName: currentElement.getWlxmlTag() || 'div', - attrs: {'class': currentElement.getWlxmlClass() || 'p'} + tagName: currentElement.wlxmlNode.getTagName() || 'div', + attrs: {'class': currentElement.wlxmlNode.getClass() || 'p'} }); added.append({text:''}); return added; @@ -61,7 +111,7 @@ handlers.push({key: KEYS.ENTER, description: gettext('Splitting text') }, success: function(ret) { - canvas.setCurrentElement(utils.findCanvasElement(ret), {caretTo: 'start'}); + canvas.setCurrentElement(utils.getElementForNode(ret), {caretTo: 'start'}); } }); @@ -77,7 +127,7 @@ handlers.push({key: KEYS.ENTER, canvas.wlxmlDocument.transaction(function() { var added = element.wlxmlNode.after( - {tagName: element.getWlxmlTag() || 'div', attrs: {'class': element.getWlxmlClass() || 'p'}} + {tagName: element.wlxmlNode.getTagName() || 'div', attrs: {'class': element.wlxmlNode.getClass() || 'p'}} ); added.append({text: ''}); return added; @@ -86,7 +136,7 @@ handlers.push({key: KEYS.ENTER, description: gettext('Splitting text') }, success: function(ret) { - canvas.setCurrentElement(utils.findCanvasElement(ret), {caretTo: 'start'}); + canvas.setCurrentElement(utils.getElementForNode(ret), {caretTo: 'start'}); } }); @@ -96,24 +146,6 @@ 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; - - // 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 node = position.element.wlxmlNode, result, goto, gotoOptions; @@ -133,57 +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) { @@ -219,14 +306,14 @@ handlers.push({keys: [KEYS.BACKSPACE, KEYS.DELETE], 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; @@ -234,7 +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; @@ -283,18 +370,18 @@ handlers.push({keys: [KEYS.BACKSPACE, KEYS.DELETE], if(grandParent && grandParent.children().length === 1) { goto = grandParent.wlxmlNode.append({text: ''}); } else { - goto = element.getNearestTextElement(direction); + goto = canvas.getNearestTextElement(direction, element); } parent.wlxmlNode.detach(); } else { - goto = element.getNearestTextElement(direction); + goto = canvas.getNearestTextElement(direction, element); 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();