##// END OF EJS Templates
Prevent qtconsole frontend freeze on lots of output....
Prevent qtconsole frontend freeze on lots of output. The output from the kernel is now clipped to last `buffer_size` before displaying and a timer is used to flush the pending output text instead of attempting to display text on every stream output from kernel. The timer interval is adjusted based on actual time taken to append a screenful of text to widget. This throttles the widget repaints and avoids choking the Qt event loop leaving time to handle other Qt events. Test cases: In [1]: for i in xrange(1000000): print i In [2]: range(100000) Without this commit the first input causes the qtconsole frontend to freeze, not responding to `Ctrl+C`.

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notebooklist.js
305 lines | 10.9 KiB | application/javascript | JavascriptLexer
//----------------------------------------------------------------------------
// Copyright (C) 2008-2011 The IPython Development Team
//
// Distributed under the terms of the BSD License. The full license is in
// the file COPYING, distributed as part of this software.
//----------------------------------------------------------------------------
//============================================================================
// NotebookList
//============================================================================
var IPython = (function (IPython) {
var NotebookList = function (selector) {
this.selector = selector;
if (this.selector !== undefined) {
this.element = $(selector);
this.style();
this.bind_events();
}
};
NotebookList.prototype.baseProjectUrl = function () {
return $('body').data('baseProjectUrl')
};
NotebookList.prototype.style = function () {
$('#notebook_toolbar').addClass('list_toolbar');
$('#drag_info').addClass('toolbar_info');
$('#notebook_buttons').addClass('toolbar_buttons');
$('#notebook_list_header').addClass('list_header');
this.element.addClass("list_container");
};
NotebookList.prototype.bind_events = function () {
if (IPython.read_only){
return;
}
var that = this;
$('#refresh_notebook_list').click(function () {
that.load_list();
});
this.element.bind('dragover', function () {
return false;
});
this.element.bind('drop', function(event){
that.handelFilesUpload(event,'drop');
return false;
});
};
NotebookList.prototype.handelFilesUpload = function(event, dropOrForm) {
var that = this;
var files;
if(dropOrForm =='drop'){
files = event.originalEvent.dataTransfer.files;
} else
{
files = event.originalEvent.target.files
}
for (var i = 0, f; f = files[i]; i++) {
var reader = new FileReader();
reader.readAsText(f);
var fname = f.name.split('.');
var nbname = fname.slice(0,-1).join('.');
var nbformat = fname.slice(-1)[0];
if (nbformat === 'ipynb') {nbformat = 'json';};
if (nbformat === 'py' || nbformat === 'json') {
var item = that.new_notebook_item(0);
that.add_name_input(nbname, item);
item.data('nbformat', nbformat);
// Store the notebook item in the reader so we can use it later
// to know which item it belongs to.
$(reader).data('item', item);
reader.onload = function (event) {
var nbitem = $(event.target).data('item');
that.add_notebook_data(event.target.result, nbitem);
that.add_upload_button(nbitem);
};
};
}
return false;
};
NotebookList.prototype.clear_list = function () {
this.element.children('.list_item').remove();
};
NotebookList.prototype.load_list = function () {
var that = this;
var settings = {
processData : false,
cache : false,
type : "GET",
dataType : "json",
success : $.proxy(this.list_loaded, this),
error : $.proxy( function(){
that.list_loaded([], null, null, {msg:"Error connecting to server."});
},this)
};
var url = this.baseProjectUrl() + 'notebooks';
$.ajax(url, settings);
};
NotebookList.prototype.list_loaded = function (data, status, xhr, param) {
var message = 'Notebook list empty.';
if (param !== undefined && param.msg) {
var message = param.msg;
}
var len = data.length;
this.clear_list();
if(len == 0)
{
$(this.new_notebook_item(0))
.append(
$('<div style="margin:auto;text-align:center;color:grey"/>')
.text(message)
)
}
for (var i=0; i<len; i++) {
var notebook_id = data[i].notebook_id;
var nbname = data[i].name;
var kernel = data[i].kernel_id;
var item = this.new_notebook_item(i);
this.add_link(notebook_id, nbname, item);
if (!IPython.read_only){
// hide delete buttons when readonly
if(kernel == null){
this.add_delete_button(item);
} else {
this.add_shutdown_button(item,kernel);
}
}
};
};
NotebookList.prototype.new_notebook_item = function (index) {
var item = $('<div/>').addClass("list_item").addClass("row-fluid");
// item.addClass('list_item ui-widget ui-widget-content ui-helper-clearfix');
// item.css('border-top-style','none');
item.append($("<div/>").addClass("span12").append(
$("<a/>").addClass("item_link").append(
$("<span/>").addClass("item_name")
)
).append(
$('<div/>').addClass("item_buttons btn-group pull-right")
));
if (index === -1) {
this.element.append(item);
} else {
this.element.children().eq(index).after(item);
}
return item;
};
NotebookList.prototype.add_link = function (notebook_id, nbname, item) {
item.data('nbname', nbname);
item.data('notebook_id', notebook_id);
item.find(".item_name").text(nbname);
item.find("a.item_link")
.attr('href', this.baseProjectUrl()+notebook_id)
.attr('target','_blank');
};
NotebookList.prototype.add_name_input = function (nbname, item) {
item.data('nbname', nbname);
item.find(".item_name").empty().append(
$('<input/>')
.addClass("nbname_input")
.attr('value', nbname)
.attr('size', '30')
.attr('type', 'text')
);
};
NotebookList.prototype.add_notebook_data = function (data, item) {
item.data('nbdata',data);
};
NotebookList.prototype.add_shutdown_button = function (item, kernel) {
var that = this;
var shutdown_button = $("<button/>").text("Shutdown").addClass("btn btn-mini").
click(function (e) {
var settings = {
processData : false,
cache : false,
type : "DELETE",
dataType : "json",
success : function (data, status, xhr) {
that.load_list();
}
};
var url = that.baseProjectUrl() + 'kernels/'+kernel;
$.ajax(url, settings);
return false;
});
// var new_buttons = item.find('a'); // shutdown_button;
item.find(".item_buttons").html("").append(shutdown_button);
};
NotebookList.prototype.add_delete_button = function (item) {
var new_buttons = $('<span/>').addClass("btn-group pull-right");
var notebooklist = this;
var delete_button = $("<button/>").text("Delete").addClass("btn btn-mini").
click(function (e) {
// $(this) is the button that was clicked.
var that = $(this);
// We use the nbname and notebook_id from the parent notebook_item element's
// data because the outer scopes values change as we iterate through the loop.
var parent_item = that.parents('div.list_item');
var nbname = parent_item.data('nbname');
var notebook_id = parent_item.data('notebook_id');
var message = 'Are you sure you want to permanently delete the notebook: ' + nbname + '?';
IPython.dialog.modal({
title : "Delete notebook",
body : message,
buttons : {
Delete : {
class: "btn-danger",
click: function() {
var settings = {
processData : false,
cache : false,
type : "DELETE",
dataType : "json",
success : function (data, status, xhr) {
parent_item.remove();
}
};
var url = notebooklist.baseProjectUrl() + 'notebooks/' + notebook_id;
$.ajax(url, settings);
}
},
Cancel : {}
}
});
return false;
});
item.find(".item_buttons").html("").append(delete_button);
};
NotebookList.prototype.add_upload_button = function (item) {
var that = this;
var upload_button = $('<button/>').text("Upload")
.addClass('btn btn-primary btn-mini upload_button')
.click(function (e) {
var nbname = item.find('.item_name > input').attr('value');
var nbformat = item.data('nbformat');
var nbdata = item.data('nbdata');
var content_type = 'text/plain';
if (nbformat === 'json') {
content_type = 'application/json';
} else if (nbformat === 'py') {
content_type = 'application/x-python';
};
var settings = {
processData : false,
cache : false,
type : 'POST',
dataType : 'json',
data : nbdata,
headers : {'Content-Type': content_type},
success : function (data, status, xhr) {
that.add_link(data, nbname, item);
that.add_delete_button(item);
}
};
var qs = $.param({name:nbname, format:nbformat});
var url = that.baseProjectUrl() + 'notebooks?' + qs;
$.ajax(url, settings);
return false;
});
var cancel_button = $('<button/>').text("Cancel")
.addClass("btn btn-mini")
.click(function (e) {
console.log('cancel click');
item.remove();
return false;
});
item.find(".item_buttons").empty()
.append(upload_button)
.append(cancel_button);
};
IPython.NotebookList = NotebookList;
return IPython;
}(IPython));