//============================================================================ // Notebook //============================================================================ var IPython = (function (IPython) { var utils = IPython.utils; var Notebook = function (selector) { this.element = $(selector); this.element.scroll(); this.element.data("notebook", this); this.next_prompt_number = 1; this.kernel = null; this.msg_cell_map = {}; this.filename = null; this.notebook_load_re = /%notebook load/ this.notebook_save_re = /%notebook save/ this.notebook_filename_re = /(\w)+.ipynb/ this.style(); this.create_elements(); this.bind_events(); this.start_kernel(); }; Notebook.prototype.style = function () { $('div#notebook').addClass('border-box-sizing'); }; Notebook.prototype.create_elements = function () { // We add this end_space div to the end of the notebook div to: // i) provide a margin between the last cell and the end of the notebook // ii) to prevent the div from scrolling up when the last cell is being // edited, but is too low on the page, which browsers will do automatically. this.element.append($('
').height(50)); $('div#notebook').addClass('border-box-sizing'); }; Notebook.prototype.bind_events = function () { var that = this; $(document).keydown(function (event) { // console.log(event); if (event.which === 38) { var cell = that.selected_cell(); if (cell.at_top()) { event.preventDefault(); that.select_prev(); }; } else if (event.which === 40) { var cell = that.selected_cell(); if (cell.at_bottom()) { event.preventDefault(); that.select_next(); }; } else if (event.which === 13 && event.shiftKey) { that.execute_selected_cell(); return false; } else if (event.which === 13 && event.ctrlKey) { that.execute_selected_cell({terminal:true}); return false; }; }); this.element.bind('collapse_pager', function () { var app_height = $('div#notebook_app').height(); // content height var splitter_height = $('div#pager_splitter').outerHeight(true); var new_height = app_height - splitter_height; that.element.animate({height : new_height + 'px'}, 'fast'); }); this.element.bind('expand_pager', function () { var app_height = $('div#notebook_app').height(); // content height var splitter_height = $('div#pager_splitter').outerHeight(true); var pager_height = $('div#pager').outerHeight(true); var new_height = app_height - pager_height - splitter_height; that.element.animate({height : new_height + 'px'}, 'fast'); }); this.element.bind('collapse_left_panel', function () { var splitter_width = $('div#left_panel_splitter').outerWidth(true); var new_margin = splitter_width; $('div#notebook_panel').animate({marginLeft : new_margin + 'px'}, 'fast'); }); this.element.bind('expand_left_panel', function () { var splitter_width = $('div#left_panel_splitter').outerWidth(true); var left_panel_width = IPython.left_panel.width; var new_margin = splitter_width + left_panel_width; $('div#notebook_panel').animate({marginLeft : new_margin + 'px'}, 'fast'); }); }; Notebook.prototype.scroll_to_bottom = function () { this.element.animate({scrollTop:this.element.get(0).scrollHeight}, 0); }; // Cell indexing, retrieval, etc. Notebook.prototype.cell_elements = function () { return this.element.children("div.cell"); } Notebook.prototype.ncells = function (cell) { return this.cell_elements().length; } // TODO: we are often calling cells as cells()[i], which we should optimize // to cells(i) or a new method. Notebook.prototype.cells = function () { return this.cell_elements().toArray().map(function (e) { return $(e).data("cell"); }); } Notebook.prototype.find_cell_index = function (cell) { var result = null; this.cell_elements().filter(function (index) { if ($(this).data("cell") === cell) { result = index; }; }); return result; }; Notebook.prototype.index_or_selected = function (index) { return index || this.selected_index() || 0; } Notebook.prototype.select = function (index) { if (index !== undefined && index >= 0 && index < this.ncells()) { if (this.selected_index() !== null) { this.selected_cell().unselect(); }; this.cells()[index].select(); if (index === (this.ncells()-1)) { this.scroll_to_bottom(); }; }; return this; }; Notebook.prototype.select_next = function () { var index = this.selected_index(); if (index !== null && index >= 0 && (index+1) < this.ncells()) { this.select(index+1); }; return this; }; Notebook.prototype.select_prev = function () { var index = this.selected_index(); if (index !== null && index >= 0 && (index-1) < this.ncells()) { this.select(index-1); }; return this; }; Notebook.prototype.selected_index = function () { var result = null; this.cell_elements().filter(function (index) { if ($(this).data("cell").selected === true) { result = index; }; }); return result; }; Notebook.prototype.cell_for_msg = function (msg_id) { var cell_id = this.msg_cell_map[msg_id]; var result = null; this.cell_elements().filter(function (index) { cell = $(this).data("cell"); if (cell.cell_id === cell_id) { result = cell; }; }); return result; }; Notebook.prototype.selected_cell = function () { return this.cell_elements().eq(this.selected_index()).data("cell"); } // Cell insertion, deletion and moving. Notebook.prototype.delete_cell = function (index) { var i = index || this.selected_index(); if (i !== null && i >= 0 && i < this.ncells()) { this.cell_elements().eq(i).remove(); if (i === (this.ncells())) { this.select(i-1); } else { this.select(i); }; }; return this; }; Notebook.prototype.append_cell = function (cell) { this.element.find('div.end_space').before(cell.element); return this; }; Notebook.prototype.insert_cell_after = function (cell, index) { var ncells = this.ncells(); if (ncells === 0) { this.append_cell(cell); return this; }; if (index >= 0 && index < ncells) { this.cell_elements().eq(index).after(cell.element); }; return this }; Notebook.prototype.insert_cell_before = function (cell, index) { var ncells = this.ncells(); if (ncells === 0) { this.append_cell(cell); return this; }; if (index >= 0 && index < ncells) { this.cell_elements().eq(index).before(cell.element); }; return this; }; Notebook.prototype.move_cell_up = function (index) { var i = index || this.selected_index(); if (i !== null && i < this.ncells() && i > 0) { var pivot = this.cell_elements().eq(i-1); var tomove = this.cell_elements().eq(i); if (pivot !== null && tomove !== null) { tomove.detach(); pivot.before(tomove); this.select(i-1); }; }; return this; } Notebook.prototype.move_cell_down = function (index) { var i = index || this.selected_index(); if (i !== null && i < (this.ncells()-1) && i >= 0) { var pivot = this.cell_elements().eq(i+1) var tomove = this.cell_elements().eq(i) if (pivot !== null && tomove !== null) { tomove.detach(); pivot.after(tomove); this.select(i+1); }; }; return this; } Notebook.prototype.sort_cells = function () { var ncells = this.ncells(); var sindex = this.selected_index(); var swapped; do { swapped = false for (var i=1; i current.input_prompt_number) { this.move_cell_up(i); swapped = true; }; }; } while (swapped); this.select(sindex); return this; }; Notebook.prototype.insert_code_cell_before = function (index) { // TODO: Bounds check for i var i = this.index_or_selected(index); var cell = new IPython.CodeCell(this); // cell.set_input_prompt(this.next_prompt_number); cell.set_input_prompt(); this.next_prompt_number = this.next_prompt_number + 1; this.insert_cell_before(cell, i); this.select(this.find_cell_index(cell)); return this; } Notebook.prototype.insert_code_cell_after = function (index) { // TODO: Bounds check for i var i = this.index_or_selected(index); var cell = new IPython.CodeCell(this); // cell.set_input_prompt(this.next_prompt_number); cell.set_input_prompt(); this.next_prompt_number = this.next_prompt_number + 1; this.insert_cell_after(cell, i); this.select(this.find_cell_index(cell)); return this; } Notebook.prototype.insert_text_cell_before = function (index) { // TODO: Bounds check for i var i = this.index_or_selected(index); var cell = new IPython.TextCell(this); cell.config_mathjax(); this.insert_cell_before(cell, i); this.select(this.find_cell_index(cell)); return this; } Notebook.prototype.insert_text_cell_after = function (index) { // TODO: Bounds check for i var i = this.index_or_selected(index); var cell = new IPython.TextCell(this); cell.config_mathjax(); this.insert_cell_after(cell, i); this.select(this.find_cell_index(cell)); return this; } Notebook.prototype.text_to_code = function (index) { // TODO: Bounds check for i var i = this.index_or_selected(index); var source_element = this.cell_elements().eq(i); var source_cell = source_element.data("cell"); if (source_cell instanceof IPython.TextCell) { this.insert_code_cell_after(i); var target_cell = this.cells()[i+1]; target_cell.set_code(source_cell.get_text()); source_element.remove(); }; }; Notebook.prototype.code_to_text = function (index) { // TODO: Bounds check for i var i = this.index_or_selected(index); var source_element = this.cell_elements().eq(i); var source_cell = source_element.data("cell"); if (source_cell instanceof IPython.CodeCell) { this.insert_text_cell_after(i); var target_cell = this.cells()[i+1]; var text = source_cell.get_code(); if (text === "") {text = target_cell.placeholder;}; target_cell.set_text(text); source_element.remove(); target_cell.edit(); }; }; // Cell collapsing Notebook.prototype.collapse = function (index) { var i = this.index_or_selected(index); this.cells()[i].collapse(); }; Notebook.prototype.expand = function (index) { var i = this.index_or_selected(index); this.cells()[i].expand(); }; // Kernel related things Notebook.prototype.start_kernel = function () { this.kernel = new IPython.Kernel(); this.kernel.start_kernel($.proxy(this.kernel_started, this)); }; Notebook.prototype.handle_shell_reply = function (e) { reply = $.parseJSON(e.data); var header = reply.header; var content = reply.content; var msg_type = header.msg_type; // console.log(reply); var cell = this.cell_for_msg(reply.parent_header.msg_id); if (msg_type === "execute_reply") { cell.set_input_prompt(content.execution_count); } else if (msg_type === "complete_reply") { cell.finish_completing(content.matched_text, content.matches); }; var payload = content.payload || []; this.handle_payload(payload); }; Notebook.prototype.handle_payload = function (payload) { var l = payload.length; if (l > 0) { IPython.pager.clear(); IPython.pager.expand(); }; for (var i=0; i'); bad_filename.html( "The filename you entered (" + filename + ") is not valid. Notebook filenames must have the following form: foo.ipynb" ); bad_filename.dialog({title: 'Invalid filename', modal: true}); return false; }; }; Notebook.prototype.save_notebook = function (filename) { this.filename = filename || this.filename || ''; if (this.filename === '') { var no_filename = $('
'); no_filename.html( "This notebook has no filename, please specify a filename of the form: foo.ipynb" ); no_filename.dialog({title: 'Missing filename', modal: true}); return; } if (!this.test_filename(this.filename)) {return;} var thedata = this.toJSON(); var settings = { processData : false, cache : false, type : "PUT", data : JSON.stringify(thedata), success : function (data, status, xhr) {console.log(data);} }; $.ajax("/notebooks/" + this.filename, settings); }; Notebook.prototype.load_notebook = function (filename) { if (!this.test_filename(filename)) {return;} var that = this; // We do the call with settings so we can set cache to false. var settings = { processData : false, cache : false, type : "GET", dataType : "json", success : function (data, status, xhr) { that.fromJSON(data); that.filename = filename; that.kernel.restart(); } }; $.ajax("/notebooks/" + filename, settings); } IPython.Notebook = Notebook; return IPython; }(IPython));