notebook.js
503 lines
| 13.8 KiB
| application/javascript
|
JavascriptLexer
|
r4292 | var IPYTHON = {}; | |
//============================================================================ | |||
// Notebook | |||
//============================================================================ | |||
var Notebook = function (selector) { | |||
this.element = $(selector); | |||
this.element.data("notebook", this); | |||
this.next_prompt_number = 1; | |||
this.bind_events(); | |||
} | |||
Notebook.prototype.bind_events = function () { | |||
var that = this; | |||
that.element.keydown(function (event) { | |||
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r4293 | console.log(event); | |
|
r4292 | if (event.which == 38 && event.shiftKey) { | |
that.select_prev(); | |||
} else if (event.which == 40 && event.shiftKey) { | |||
that.select_next(); | |||
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r4293 | } else if (event.which == 13 && event.shiftKey) { | |
// The focus is not quite working here. | |||
that.insert_code_cell_after(); | |||
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r4292 | } | |
}); | |||
}; | |||
// 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(); | |||
}; | |||
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.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.append(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); | |||
}; | |||
}; | |||
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); | |||
}; | |||
}; | |||
return this; | |||
} | |||
Notebook.prototype.sort_cells = function () { | |||
var ncells = this.ncells(); | |||
var swapped; | |||
do { | |||
swapped = false | |||
for (var i=1; i<ncells; i++) { | |||
current = this.cell_elements().eq(i).data("cell"); | |||
previous = this.cell_elements().eq(i-1).data("cell"); | |||
if (previous.input_prompt_number > current.input_prompt_number) { | |||
this.move_cell_up(i); | |||
swapped = true; | |||
}; | |||
}; | |||
} while (swapped); | |||
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 CodeCell(this); | |||
cell.set_input_prompt(this.next_prompt_number); | |||
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 CodeCell(this); | |||
cell.set_input_prompt(this.next_prompt_number); | |||
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 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 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 TextCell) { | |||
this.insert_code_cell_after(i); | |||
var target_cell = this.cells()[i+1]; | |||
var text = source_element.find("textarea.text_cell_input").val(); | |||
target_cell.element.find("textarea.input_area").val(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 CodeCell) { | |||
this.insert_text_cell_after(i); | |||
var target_cell = this.cells()[i+1]; | |||
var text = source_element.find("textarea.input_area").val(); | |||
target_cell.element.find("textarea.text_cell_input").val(text); | |||
target_cell.element.find("textarea.text_cell_input").html(text); | |||
target_cell.element.find("div.text_cell_render").html(text); | |||
source_element.remove(); | |||
}; | |||
}; | |||
// 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(); | |||
} | |||
//============================================================================ | |||
// Cell | |||
//============================================================================ | |||
var Cell = function (notebook) { | |||
this.notebook = notebook; | |||
this.selected = false; | |||
this.element; | |||
this.create_element(); | |||
if (this.element !== undefined) { | |||
this.element.data("cell", this); | |||
this.bind_events(); | |||
} | |||
}; | |||
Cell.prototype.select = function () { | |||
this.element.addClass('ui-widget-content ui-corner-all'); | |||
this.selected = true; | |||
this.element.find('textarea').trigger('focusin'); | |||
}; | |||
Cell.prototype.unselect = function () { | |||
this.element.removeClass('ui-widget-content ui-corner-all'); | |||
this.selected = false; | |||
}; | |||
Cell.prototype.bind_events = function () { | |||
var that = this; | |||
var nb = that.notebook | |||
that.element.click(function (event) { | |||
if (that.selected === false) { | |||
nb.select(nb.find_cell_index(that)); | |||
}; | |||
}); | |||
that.element.focusin(function (event) { | |||
if (that.selected === false) { | |||
nb.select(nb.find_cell_index(that)); | |||
}; | |||
}); | |||
}; | |||
// Subclasses must implement create_element. | |||
Cell.prototype.create_element = function () {}; | |||
//============================================================================ | |||
// CodeCell | |||
//============================================================================ | |||
var CodeCell = function (notebook) { | |||
Cell.apply(this, arguments); | |||
this.input_prompt_number = ' '; | |||
this.output_prompt_number = ' '; | |||
}; | |||
CodeCell.prototype = new Cell(); | |||
CodeCell.prototype.create_element = function () { | |||
var cell = $('<div></div>').addClass('cell code_cell') | |||
var input = $('<div></div>').addClass('input').append( | |||
$('<div/>').addClass('prompt input_prompt') | |||
).append( | |||
$('<textarea/>').addClass('input_area'). | |||
attr('rows',1). | |||
attr('cols',80). | |||
attr('wrap','hard'). | |||
autoGrow() | |||
); | |||
var output = $('<div></div>').addClass('output').append( | |||
$('<div/>').addClass('prompt output_prompt') | |||
).append( | |||
$('<div/>').addClass('output_area') | |||
); | |||
output.hide(); | |||
cell.append(input).append(output); | |||
this.element = cell; | |||
}; | |||
CodeCell.prototype.collapse = function () { | |||
this.element.find('div.output').hide(); | |||
}; | |||
CodeCell.prototype.expand = function () { | |||
this.element.find('div.output').show(); | |||
}; | |||
CodeCell.prototype.set_prompt = function (number) { | |||
this.set_input_prompt(number); | |||
this.set_output_prompt(number); | |||
}; | |||
CodeCell.prototype.set_input_prompt = function (number) { | |||
var n = number || ' '; | |||
this.input_prompt_number = n | |||
this.element.find('div.input_prompt').html('In [' + n + ']:'); | |||
}; | |||
CodeCell.prototype.set_output_prompt = function (number) { | |||
var n = number || ' '; | |||
this.output_prompt_number = n | |||
this.element.find('div.output_prompt').html('Out[' + n + ']:'); | |||
}; | |||
//============================================================================ | |||
// TextCell | |||
//============================================================================ | |||
var TextCell = function (notebook) { | |||
Cell.apply(this, arguments); | |||
}; | |||
TextCell.prototype = new Cell(); | |||
TextCell.prototype.create_element = function () { | |||
var cell = $('<div></div').addClass('cell text_cell'). | |||
append( | |||
$('<textarea>Type HTML/LaTex content here</textarea>'). | |||
addClass('text_cell_input'). | |||
attr('rows',1). | |||
attr('cols',80). | |||
autoGrow() | |||
).append( | |||
$('<div></div>').addClass('text_cell_render') | |||
) | |||
this.element = cell; | |||
}; | |||
TextCell.prototype.config_mathjax = function () { | |||
var text_cell = this.element; | |||
var input = text_cell.find("textarea.text_cell_input"); | |||
var output = text_cell.find("div.text_cell_render"); | |||
text_cell.click(function () { | |||
output.hide(); | |||
input.show().trigger('focus'); | |||
}).focusout(function () { | |||
var text = input.val(); | |||
output.html(text) | |||
input.html(text); | |||
MathJax.Hub.Queue(["Typeset",MathJax.Hub]); | |||
input.hide(); | |||
output.show(); | |||
}); | |||
text_cell.trigger("focusout"); | |||
}; | |||
$(document).ready(function () { | |||
MathJax.Hub.Config({ | |||
tex2jax: { | |||
inlineMath: [ ['$','$'], ["\\(","\\)"] ], | |||
displayMath: [ ['$$','$$'], ["\\[","\\]"] ], | |||
} | |||
}); | |||
$("ul#main_menu").wijmenu({animation:{animated: "slide", duration: 100, easing: null}}); | |||
IPYTHON.notebook = new Notebook('div.notebook'); | |||
IPYTHON.notebook.insert_code_cell_after(); | |||
$("#move_cell").buttonset(); | |||
$("#move_up").button("option", "icons", {primary:"ui-icon-arrowthick-1-n"}); | |||
$("#move_up").button("option", "text", false); | |||
$("#move_up").click(function () {IPYTHON.notebook.move_cell_up();}); | |||
$("#move_down").button("option", "icons", {primary:"ui-icon-arrowthick-1-s"}); | |||
$("#move_down").button("option", "text", false); | |||
$("#move_down").click(function () {IPYTHON.notebook.move_cell_down();}); | |||
$("#insert_delete").buttonset(); | |||
$("#insert_cell_before").click(function () {IPYTHON.notebook.insert_code_cell_before();}); | |||
$("#insert_cell_after").click(function () {IPYTHON.notebook.insert_code_cell_after();}); | |||
$("#delete_cell").button("option", "icons", {primary:"ui-icon-closethick"}); | |||
$("#delete_cell").button("option", "text", false); | |||
$("#delete_cell").click(function () {IPYTHON.notebook.delete_cell();}); | |||
$("#cell_type").buttonset(); | |||
$("#to_code").click(function () {IPYTHON.notebook.text_to_code();}); | |||
$("#to_text").click(function () {IPYTHON.notebook.code_to_text();}); | |||
$("#sort").buttonset(); | |||
$("#sort_cells").click(function () {IPYTHON.notebook.sort_cells();}); | |||
}); |