X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/8f3efc2235f836dd2b624d569d97a7ae0dad77ff..04b969b68c922970339a783e865bb1f9c593946c:/src/editor/plugins/core/core.js

diff --git a/src/editor/plugins/core/core.js b/src/editor/plugins/core/core.js
index 718a985..c2c5ffa 100644
--- a/src/editor/plugins/core/core.js
+++ b/src/editor/plugins/core/core.js
@@ -1,31 +1,690 @@
 define(function(require) {
     
 'use strict';
+/* globals gettext */
 
 var _ = require('libs/underscore'),
-    plugin = {documentExtension: {textNode: {}}};
+    templates = require('plugins/core/templates'),
+    footnote = require('plugins/core/footnote'),
+    switchTo = require('plugins/core/switch'),
+    lists = require('plugins/core/lists'),
+    plugin = {name: 'core', actions: [], canvas: {}, documentExtension: {textNode: {}, documentNode: {}}},
+    Dialog = require('views/dialog/dialog'),
+    canvasElements = require('plugins/core/canvasElements'),
+    metadataEditor = require('plugins/core/metadataEditor/metadataEditor'),
+    edumed = require('plugins/core/edumed/edumed'),
+    add_attachments = require('views/attachments/add_attachments');
 
 
+var exerciseFix = function(newNodes) {
+    var list, exercise, max, addedItem, answerValues;
+    if(newNodes.created.is('item')) {
+        list = newNodes.created.parent();
+        exercise = list.parent();
+        if(exercise && exercise.is('exercise')) {
+            if(exercise.is('exercise.order')) {
+                answerValues = exercise.object.getItems()
+                            .map(function(item) {
+                                if(!addedItem && item.node.sameNode(newNodes.created)) {
+                                    addedItem = item;
+                                }
+                                return item.getAnswer();
+                            });
+                max = Math.max.apply(Math.max, answerValues);
+                addedItem.setAnswer(max + 1);
+            }
+        }
+    }
+};
+
 plugin.documentExtension.textNode.transformations = {
     breakContent: {
         impl: function(args) {
             var node = this,
+                isSpan = node.parent().getTagName() === 'span',
+                parentDescribingNodes = [],
                 newNodes, emptyText;
             newNodes = node.split({offset: args.offset});
+            newNodes.second.contents()
+                .filter(function(child) {
+                    return child.object.describesParent;
+                })
+                .forEach(function(child) {
+                    //child.detach();
+                    parentDescribingNodes.push(child);
+                    child.detach();
+                });
             [newNodes.first, newNodes.second].some(function(newNode) {
                 if(!(newNode.contents().length)) {
                     emptyText = newNode.append({text: ''});
                     return true; // break
                 }
             });
+
+            /* <hack>
+            /*
+                This makes sure that adding a new item to the list in some of the edumed exercises
+                sets an answer attribute that makes sense (and not just copies it which would create
+                a duplicate value).
+
+                This won't be neccessary when/if we introduce canvas element own key event handlers.
+
+                Alternatively, WLXML elements could implement their own item split methods that we
+                would delegate to.
+            */
+                exerciseFix(newNodes);
+            /* </hack> */
+
+            parentDescribingNodes.forEach(function(node) {
+                newNodes.first.append(node);
+            });
+
+            var parent, newNode;
+
+            var copyNode = function(n) {
+                var attrs = {};
+                n.getAttrs().forEach(function(attr) {
+                    attrs[attr.name] = attr.value;
+                });
+
+                return node.document.createDocumentNode({
+                    tagName: n.getTagName(),
+                    attrs: attrs
+                });
+            };
+
+            var move = function(node, to) {
+                var copy;
+                if(!node.containsNode(newNodes.second)) {
+                    to.append(node);
+                    return false;
+                } else {
+                    if(!node.sameNode(newNodes.second)) {
+                        copy = to.append(copyNode(node));
+                        node.contents().some(function(n) {
+                            return move(n, copy);
+                        });
+                    }
+                    return true;
+                }
+            };
+
+            if(isSpan) {
+                newNodes.first.parents().some(function(p) {
+                    if(p.getTagName() !== 'span') {
+                        parent = p;
+                        return true;
+                    }
+                });
+                newNode = parent.before({tagName: parent.getTagName(), attrs: {'class': parent.getClass()}});
+                parent.contents().some(function(n) {
+                    return move(n, newNode);
+                });
+                if(newNodes.second.contents()[0].getText().length === 0) {
+                    var textNode = newNodes.second.contents()[0];
+                    newNodes.second.detach();
+                    newNodes.second = parent;
+                    emptyText = newNodes.second.append(textNode);
+                }
+            }
+
+            var newNodeText = newNodes.second.contents()[0].getText();
+            if(newNodes.second.is({tagName: 'header'}) && newNodeText === '') {
+                newNodes.second = newNodes.second.setTag('div');
+                newNodes.second.setClass('p');
+            }
+
             return _.extend(newNodes, {emptyText: emptyText});
+        }
+    },
+    mergeContentUp: function() {
+        /* globals Node */
+        var myPrev = this,
+            base = this,
+            ret;
+
+        if(myPrev.nodeType === Node.TEXT_NODE) {
+            if(myPrev.getIndex() > 0) {
+                return;
+            }
+            myPrev = base = myPrev.parent();
+        }
+
+        myPrev = myPrev && myPrev.prev();
+
+        if(myPrev && myPrev.nodeType === Node.ELEMENT_NODE)  {
+            var ptr = this,
+                next;
+            while(ptr) {
+                next = ptr.next();
+                if(!ret) {
+                    ret = myPrev.append(ptr);
+                } else {
+                    myPrev.append(ptr);
+                }
+                
+                ptr = next;
+            }
+            if(base !== this) {
+                base.detach();
+            }
+            return {node: ret, offset: ret.sameNode(this) ? null : ret.getText().length - this.getText().length};
+        }
+    }
+};
+
+plugin.documentExtension.documentNode.transformations = {
+    moveUp: function() {
+        var toMerge = this,
+            prev = toMerge.prev();
+
+        var merge = function(from, to) {
+            var toret;
+            from.contents().forEach(function(node, idx) {
+                var len, ret;
+                if(idx === 0 && node.nodeType === Node.TEXT_NODE) {
+                    len = node.getText().length;
+                }
+                ret = to.append(node);
+                
+                if(idx === 0 && ret.nodeType === Node.TEXT_NODE) {
+                    toret = {
+                        node: ret,
+                        offset: ret.getText().length - len
+                    };
+                } else if(!toret) {
+                    toret = {
+                        node: ret.getFirstTextNode(),
+                        offset: 0
+                    };
+                }
+            });
+            from.detach();
+            return toret;
+        };
+
+        var strategies = [
+            {
+                applies: function() {
+                    return toMerge.nodeType === Node.TEXT_NODE && prev.is({tagName: 'span'});
+                },
+                run: function() {
+                    var textNode = prev.getLastTextNode(),
+                        txt, prevText, prevTextLen;
+                    if(textNode) {
+                        txt = textNode.getText();
+                        if(txt.length > 1) {
+                            textNode.setText(txt.substr(0, txt.length-1));
+                            return {node: toMerge, offset: 0};
+                        } else {
+                            if((prevText = prev.prev()) && prevText.nodeType === Node.TEXT_NODE) {
+                                prevTextLen = prevText.getText().length;
+                            }
+                            prev.detach();
+                            return {
+                                node: prevText ? prevText : toMerge,
+                                offset : prevText ? prevTextLen : 0
+                            };
+                        }
+                    }
+                }
+            },
+            {
+                applies: function() {
+                    return toMerge.is({tagName: 'div', 'klass': 'p'}) || (toMerge.is({tagName: 'div'}) && toMerge.getClass() === '');
+                },
+                run: function() {
+                    if (!prev)
+                        return;
+                    if(prev.is('p') || prev.is({tagName: 'header'})) {
+                        return merge(toMerge, prev);
+                    }
+                    if(prev.is('list')) {
+                        var items = prev.contents().filter(function(n) { return n.is('item');});
+                        return merge(toMerge, items[items.length-1]);
+                    }
+                }
+            },
+            {
+                applies: function() {
+                    return toMerge.is({tagName: 'span'});
+                },
+                run: function() {
+                    /* globals Node */
+                    var toret = {node: toMerge.contents()[0] , offset: 0},
+                        txt, txtNode, parent;
+                    if(!prev) {
+                        toMerge.parents().some(function(p) {
+                            if(p.is({tagName: 'span'})) {
+                                parent = prev = p;
+                            } else {
+                                if(!parent) {
+                                    parent = p;
+                                }
+                                prev = prev && prev.prev();
+                                return true;
+                            }
+                        });
+                    }
+                    if(!prev) {
+                        return parent.moveUp();
+                    }
+                    else if(prev.nodeType === Node.TEXT_NODE && (txt = prev.getText())) {
+                        prev.setText(txt.substr(0, txt.length-1));
+                        return toret;
+                    } else if(prev.is({tagName: 'span'})) {
+                        if((txtNode = prev.getLastTextNode())) {
+                            txt = txtNode.getText();
+                            if(txt.length > 1) {
+                                txtNode.setText(txt.substr(0, txt.length-1));
+                            } else {
+                                if(txtNode.parent().contents().length === 1) {
+                                    txtNode.parent().detach();
+                                } else {
+                                    txtNode.detach();
+                                }
+
+                            }
+                            return toret;
+                        }
+                    }
+
+                }
+            },
+            {
+                applies: function() {
+                    return toMerge.is({tagName: 'header'});
+                },
+                run: function() {
+                    if(prev && (prev.is('p') || prev.is({tagName: 'header'}))) {
+                        return merge(toMerge, prev);
+                    }
+                }
+            },
+            {
+                applies: function() {
+                    return toMerge.is('item');
+                },
+                run: function() {
+                    var list;
+                    if(prev && prev.is('item')) {
+                        return merge(toMerge, prev);
+                    } else if(!prev && (list = toMerge.parent()) && list.is('list')) {
+                        list.before(toMerge);
+                        toMerge.setClass('p');
+                        if(!list.contents().length) {
+                            list.detach();
+                        }
+                        return {node: toMerge.contents()[0], offset:0};
+                    }
+                }
+            }
+        ];
+
+        var toret;
+        strategies.some(function(strategy) {
+            if(strategy.applies()) {
+                toret = strategy.run();
+                return true;
+            }
+        });
+        return toret;
+    },
+    insertNewNode: function () {
+        var node = this;
+        var newElement = this.document.createDocumentNode({tagName: 'div', attrs: {class: 'p'}});
+        node.after(newElement);
+        newElement.append({text: ''});
+        return newElement;
+    }
+};
+
+var undoRedoAction = function(dir) {
+    return {
+        name: dir,
+        params: {
+            document: {type: 'context', name: 'document'},
+        },
+        stateDefaults: {
+            label: dir === 'undo' ? '<-' : '->',
+            icon: 'share-alt',
+            iconStyle: dir === 'undo' ? '-webkit-transform: scale(-1,1); transform: scale(-1, 1)' : '',
+            execute: function(callback, params) {
+                var metadata = _.last(params.document[dir+'Stack']).metadata,
+                    fragment = metadata && metadata.fragment;
+                params.document[dir]();
+                if(fragment) {
+                    if(!fragment.isValid()) {
+                        fragment.restoreFromPaths();
+                    }
+                    if(fragment.isValid()) {
+                        callback(fragment);
+                    }
+                }
+                callback();
+            },
+        },
+        getState: function(params) {
+            var allowed = params.document && !!(params.document[dir+'Stack'].length),
+                desc = dir === 'undo' ? gettext('Undo') : gettext('Redo'),
+                descEmpty = dir === 'undo' ? gettext('There is nothing to undo') : gettext('There is nothing to redo');
+            if(allowed) {
+                var metadata = _.last(params.document[dir+'Stack']).metadata;
+                if(metadata) {
+                    desc += ': ' + (metadata.description || gettext('unknown operation'));
+                }
+            }
+            return {
+                allowed: allowed,
+                description: allowed ? desc : descEmpty
+            };
+        }
+    };
+};
+
+var pad = function(number) {
+    if(number < 10) {
+        number = '0' + number;
+    }
+    return number;
+};
+
+var commentAction = {
+    name: 'comment',
+    params: {
+        fragment: {type: 'context', name: 'fragment'}
+    },
+    stateDefaults: {
+        icon: 'comment',
+        execute: function(callback, params, editor) {
+            /* globals Node */
+            var node = params.fragment.node,
+                action = this;
+            if(node.nodeType === Node.TEXT_NODE) {
+                node = node.parent();
+            }
+            node.document.transaction(function() {
+                var comment =  node.after({tagName: 'aside', attrs: {'class': 'comment'}});
+                comment.append({text:''});
+                var user = editor.getUser(), creator;
+                if(user) {
+                    creator = user.name;
+                    if(user.email) {
+                        creator += ' (' + user.email + ')';
+                    }
+                } else {
+                    creator = 'anonymous';
+                }
+
+                var currentDate = new Date(),
+                    dt = pad(currentDate.getDate()) + '-' +
+                                pad((currentDate.getMonth() + 1))  + '-' +
+                                pad(currentDate.getFullYear()) + ' ' +
+                                pad(currentDate.getHours()) + ':' +
+                                pad(currentDate.getMinutes()) + ':' +
+                                pad(currentDate.getSeconds());
+
+                var metadata = comment.getMetadata();
+                metadata.add({key: 'creator', value: creator});
+                metadata.add({key: 'date', value: dt});
+            }, {
+                metadata: {
+                    description: action.getState().description
+                },
+                success: callback
+            });
         },
-        getChangeRoot: function() {
-            return this.context.parent().parent();
+    },
+    getState: function(params) {
+        var state = {
+            allowed: params.fragment && params.fragment.isValid() &&
+                        params.fragment instanceof params.fragment.NodeFragment && !params.fragment.node.isRoot()
+        };
+        if(state.allowed) {
+            state.description = gettext('Insert comment');
         }
+        return state;
     }
 };
 
+
+var createWrapTextAction = function(createParams) {
+    return {
+        name: createParams.name,
+        params: {
+            fragment: {type: 'context', name: 'fragment'},
+        },
+        getState: function(params) {
+            var state = {
+                    label: this.config.label
+                },
+                parent;
+            
+            if(!params.fragment || !params.fragment.isValid()) {
+                return _.extend(state, {allowed: false});
+            }
+
+            if(params.fragment instanceof params.fragment.CaretFragment && params.fragment.node.isInside(createParams.klass)) {
+                return _.extend(state, {
+                    allowed: true,
+                    toggled: true,
+                    description: createParams.unwrapDescription,
+                    execute: function(callback, params) {
+                        var node = params.fragment.node,
+                            doc = node.document,
+                            toRemove = node.getParent(createParams.klass),
+                            prefLen = 0;
+
+                        if(node.sameNode(toRemove.contents()[0]) && toRemove.isPrecededByTextNode()) {
+                            prefLen = toRemove.prev().getText().length;
+                        }
+
+                        doc.transaction(function() {
+                            var ret = toRemove.unwrapContent(),
+                                newFragment = params.fragment;
+                            if(!newFragment.isValid()) {
+                                newFragment =  doc.createFragment(doc.CaretFragment, {
+                                    node: ret.element1,
+                                    offset: prefLen + params.fragment.offset
+                                });
+                            }
+                            return newFragment;
+                        }, {
+                            metadata: {
+                                description: createParams.unwrapDescription,
+                                fragment: params.fragment
+                            },
+                            success: callback
+                        });
+                    }
+                });
+            }
+
+            if(params.fragment instanceof params.fragment.TextRangeFragment && params.fragment.hasSiblingBoundaries()) {
+                parent = params.fragment.startNode.parent();
+                if(parent && parent.is(createParams.klass) || parent.isInside(createParams.klass)) {
+                    return _.extend(state, {allowed: false});
+                }
+
+                return _.extend(state, {
+                    allowed: true,
+                    description: createParams.wrapDescription,
+                    execute: function(callback, params) {
+                        params.fragment.document.transaction(function() {
+                            var parent = params.fragment.startNode.parent(),
+                                doc = params.fragment.document,
+                                wrapper, lastTextNode;
+                            
+                            wrapper = parent.wrapText({
+                                _with: {tagName: 'span', attrs: {'class': createParams.klass}},
+                                offsetStart: params.fragment.startOffset,
+                                offsetEnd: params.fragment.endOffset,
+                                textNodeIdx: [params.fragment.startNode.getIndex(), params.fragment.endNode.getIndex()]
+                            });
+                                
+                            lastTextNode = wrapper.getLastTextNode();
+                            if(lastTextNode) {
+                                return doc.createFragment(doc.CaretFragment, {node: lastTextNode, offset: lastTextNode.getText().length});
+                            }
+                        }, {
+                            metadata: {
+                                description: createParams.wrapDescription,
+                                fragment: params.fragment
+                            },
+                            success: callback
+                        });
+                    }
+                });
+            }
+            return _.extend(state, {allowed: false});
+        }
+    };
+};
+
+
+var createLinkFromSelection = function(callback, params) {
+    var fragment = params.fragment,
+        doc = fragment.document,
+        text = fragment.startNode.nativeNode.data.substring(fragment.startOffset, fragment.endOffset),
+        url;
+    if (text.indexOf('//') >= 0 && text.indexOf(' ') < 0) {
+        url = text;
+    } else if (text.substr(0, 4) === 'www.' && text.indexOF(' ') < 0) {
+        url = 'http://' + text;
+    }
+    var dialog = Dialog.create({
+            title: gettext('Create link'),
+            executeButtonText: gettext('Apply'),
+            cancelButtonText: gettext('Cancel'),
+            fields: [
+                {label: gettext('Link'), name: 'href', type: 'input', initialValue: url || '',
+                prePasteHandler: function(text) {
+                                    return params.fragment.document.getLinkForUrl(text);
+                                }.bind(this)
+                }
+            ]
+        }),
+        action = this;
+    
+    dialog.on('execute', function(event) {
+        doc.transaction(function() {
+            var span =  action.params.fragment.startNode.parent().wrapText({
+                _with: {tagName: 'span', attrs: {'class': 'link', href: event.formData.href }},
+                offsetStart: params.fragment.startOffset,
+                offsetEnd: params.fragment.endOffset,
+                textNodeIdx: [params.fragment.startNode.getIndex(), params.fragment.endNode.getIndex()]
+            }),
+                doc = params.fragment.document;
+            event.success();
+            return doc.createFragment(doc.CaretFragment, {node: span.contents()[0], offset:0});
+        }, {
+            metadata: {
+                description: action.getState().description,
+                fragment: params.fragment
+            },
+            success: callback
+        });
+    });
+    dialog.show();
+    add_attachments(dialog);
+};
+
+var editLink = function(callback, params) {
+    var doc = params.fragment.document,
+        link = params.fragment.node.getParent('link'),
+        dialog = Dialog.create({
+            title: gettext('Edit link'),
+            executeButtonText: gettext('Apply'),
+            cancelButtonText: gettext('Cancel'),
+            fields: [
+                {label: gettext('Link'), name: 'href', type: 'input', initialValue: link.getAttr('href')}
+            ]
+        }),
+        action = this;
+    
+    dialog.on('execute', function(event) {
+        doc.transaction(function() {
+            link.setAttr('href', event.formData.href);
+            event.success();
+            return params.fragment;
+        }, {
+            metadata: {
+                description: action.getState().description,
+                fragment: params.fragment
+            },
+            success: callback
+        });
+    });
+    dialog.show();
+};
+
+var linkAction = {
+    name: 'link',
+    params: {
+        fragment: {type: 'context', name: 'fragment'}
+    },
+    stateDefaults: {
+        label: gettext('link')
+    },
+    getState: function(params) {
+        if(!params.fragment || !params.fragment.isValid()) {
+            return {allowed: false};
+        }
+
+        if(params.fragment instanceof params.fragment.TextRangeFragment) {
+            if(!params.fragment.hasSiblingBoundaries() || params.fragment.startNode.parent().is('link')) {
+                return {allowed: false};
+            }
+            return {
+                allowed: true,
+                description: gettext('Create link from selection'),
+                execute: createLinkFromSelection
+            };
+        }
+
+        if(params.fragment instanceof params.fragment.CaretFragment) {
+            if(params.fragment.node.isInside('link')) {
+                return {
+                    allowed: true,
+                    toggled: true,
+                    description: gettext('Edit link'),
+                    execute: editLink
+                };
+            }
+        }
+        return {allowed: false};
+    }
+};
+
+var metadataParams = {};
+
+plugin.actions = [
+    undoRedoAction('undo'),
+    undoRedoAction('redo'),
+    commentAction,
+    createWrapTextAction({name: 'emphasis', klass: 'emp', wrapDescription: gettext('Mark as emphasized'), unwrapDescription: gettext('Remove emphasis')}),
+    createWrapTextAction({name: 'cite', klass: 'cite', wrapDescription: gettext('Mark as citation'), unwrapDescription: gettext('Remove citation')}),
+    linkAction,
+    metadataEditor.action(metadataParams)
+].concat(plugin.actions, templates.actions, footnote.actions, switchTo.actions, lists.actions, edumed.actions);
+
+
+plugin.config = function(config) {
+    // templates.actions[0].config(config.templates);
+    templates.actions[0].params.template.options = config.templates;
+    metadataParams.config = (config.metadata || []).sort(function(configRow1, configRow2) {
+        if(configRow1.key < configRow2.key) {
+            return -1;
+        }
+        if(configRow1.key > configRow2.key) {
+            return 1;
+        }
+        return 0;
+    });
+};
+
+plugin.canvasElements = canvasElements.concat(edumed.canvasElements);
+
 return plugin;
 
 });
\ No newline at end of file