/usr/lib/python2.7/dist-packages/notebook/static/notebook/js/outputarea.js is in python-notebook 5.2.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 | // Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.
define([
'jquery',
'base/js/utils',
'base/js/i18n',
'base/js/security',
'base/js/keyboard',
'services/config',
'notebook/js/mathjaxutils',
'components/marked/lib/marked',
], function($, utils, i18n, security, keyboard, configmod, mathjaxutils, marked) {
"use strict";
/**
* @class OutputArea
*
* @constructor
*/
var OutputArea = function (options) {
this.config = options.config;
this.selector = options.selector;
this.events = options.events;
this.keyboard_manager = options.keyboard_manager;
this.wrapper = $(options.selector);
this.outputs = [];
this.collapsed = false;
this.scrolled = false;
this.scroll_state = 'auto';
this.trusted = true;
this.clear_queued = null;
if (options.prompt_area === undefined) {
this.prompt_area = true;
} else {
this.prompt_area = options.prompt_area;
}
this._display_id_targets = {};
this.create_elements();
this.style();
this.bind_events();
this.class_config = new configmod.ConfigWithDefaults(this.config,
OutputArea.config_defaults, 'OutputArea');
this.handle_appended = utils.throttle(this.handle_appended.bind(this));
};
OutputArea.config_defaults = {
stream_chunk_size: 8192, // chunk size for stream output
};
/**
* Class prototypes
**/
OutputArea.prototype.create_elements = function () {
var element = this.element = $("<div/>");
// wrap element in safe trigger,
// so that errors (e.g. in widget extensions) are logged instead of
// breaking everything.
this.element._original_trigger = this.element.trigger;
this.element.trigger = function (name, data) {
try {
this._original_trigger.apply(this, arguments);
} catch (e) {
console.error("Exception in event handler for " + name, e, arguments);
}
}
this.collapse_button = $("<div/>");
this.prompt_overlay = $("<div/>");
this.wrapper.append(this.prompt_overlay);
this.wrapper.append(this.element);
this.wrapper.append(this.collapse_button);
};
OutputArea.prototype.style = function () {
this.collapse_button.hide();
if (!this.prompt_area) {
this.prompt_overlay.hide();
}
this.wrapper.addClass('output_wrapper');
this.element.addClass('output');
this.collapse_button.addClass("btn btn-default output_collapsed");
this.collapse_button.attr('title', i18n.msg._('click to expand output'));
this.collapse_button.text('. . .');
this.prompt_overlay.addClass('out_prompt_overlay prompt');
this.prompt_overlay.attr('title', i18n.msg._('click to expand output; double click to hide output'));
this.expand();
};
/**
* Should the OutputArea scroll?
* Returns whether the height (in lines) exceeds the current threshold.
* Threshold will be OutputArea.minimum_scroll_threshold if scroll_state=true (manually requested)
* or OutputArea.auto_scroll_threshold if scroll_state='auto'.
* This will always return false if scroll_state=false (scroll disabled).
*
*/
OutputArea.prototype._should_scroll = function () {
var threshold;
if (this.scroll_state === false) {
return false;
} else if (this.scroll_state === true) {
threshold = OutputArea.minimum_scroll_threshold;
} else {
threshold = OutputArea.auto_scroll_threshold;
}
if (threshold <=0) {
return false;
}
// line-height from http://stackoverflow.com/questions/1185151
var fontSize = this.element.css('font-size') || '14px';
var lineHeight = Math.floor((parseFloat(fontSize.replace('px','')) || 14) * 1.3);
return (this.element.height() > threshold * lineHeight);
};
OutputArea.prototype.bind_events = function () {
var that = this;
this.prompt_overlay.dblclick(function () { that.toggle_output(); });
this.prompt_overlay.click(function () { that.toggle_scroll(); });
this.element.on('resizeOutput', function () {
// maybe scroll output,
// if it's grown large enough and hasn't already been scrolled.
if (!that.scrolled && that._should_scroll()) {
that.scroll_area();
}
});
this.collapse_button.click(function () {
that.expand();
});
};
OutputArea.prototype.collapse = function () {
if (!this.collapsed) {
this.element.hide();
this.prompt_overlay.hide();
if (this.element.html()){
this.collapse_button.show();
}
this.collapsed = true;
// collapsing output clears scroll state
this.scroll_state = 'auto';
}
};
OutputArea.prototype.expand = function () {
if (this.collapsed) {
this.collapse_button.hide();
this.element.show();
if (this.prompt_area) {
this.prompt_overlay.show();
}
this.collapsed = false;
this.scroll_if_long();
}
};
OutputArea.prototype.toggle_output = function () {
if (this.collapsed) {
this.expand();
} else {
this.collapse();
}
};
OutputArea.prototype.scroll_area = function () {
this.element.addClass('output_scroll');
this.prompt_overlay.attr('title', i18n.msg._('click to unscroll output; double click to hide'));
this.scrolled = true;
};
OutputArea.prototype.unscroll_area = function () {
this.element.removeClass('output_scroll');
this.prompt_overlay.attr('title', i18n.msg._('click to scroll output; double click to hide'));
this.scrolled = false;
};
/**
* Scroll OutputArea if height exceeds a threshold.
*
* Threshold is OutputArea.minimum_scroll_threshold if scroll_state = true,
* OutputArea.auto_scroll_threshold if scroll_state='auto'.
*
**/
OutputArea.prototype.scroll_if_long = function () {
var should_scroll = this._should_scroll();
if (!this.scrolled && should_scroll) {
// only allow scrolling long-enough output
this.scroll_area();
} else if (this.scrolled && !should_scroll) {
// scrolled and shouldn't be
this.unscroll_area();
}
};
OutputArea.prototype.toggle_scroll = function () {
if (this.scroll_state == 'auto') {
this.scroll_state = !this.scrolled;
} else {
this.scroll_state = !this.scroll_state;
}
if (this.scrolled) {
this.unscroll_area();
} else {
// only allow scrolling long-enough output
this.scroll_if_long();
}
};
// typeset with MathJax if MathJax is available
OutputArea.prototype.typeset = function () {
utils.typeset(this.element);
};
OutputArea.prototype.handle_output = function (msg) {
var json = {};
var msg_type = json.output_type = msg.header.msg_type;
var content = msg.content;
switch(msg_type) {
case "stream" :
json.text = content.text;
json.name = content.name;
break;
case "execute_result":
json.execution_count = content.execution_count;
case "update_display_data":
case "display_data":
json.transient = content.transient;
json.data = content.data;
json.metadata = content.metadata;
break;
case "error":
json.ename = content.ename;
json.evalue = content.evalue;
json.traceback = content.traceback;
break;
default:
console.error("unhandled output message", msg);
return;
}
this.append_output(json);
};
// Declare mime type as constants
var MIME_JAVASCRIPT = 'application/javascript';
var MIME_HTML = 'text/html';
var MIME_MARKDOWN = 'text/markdown';
var MIME_LATEX = 'text/latex';
var MIME_SVG = 'image/svg+xml';
var MIME_PNG = 'image/png';
var MIME_JPEG = 'image/jpeg';
var MIME_GIF = 'image/gif';
var MIME_PDF = 'application/pdf';
var MIME_TEXT = 'text/plain';
OutputArea.output_types = [
MIME_JAVASCRIPT,
MIME_HTML,
MIME_MARKDOWN,
MIME_LATEX,
MIME_SVG,
MIME_PNG,
MIME_JPEG,
MIME_GIF,
MIME_PDF,
MIME_TEXT,
];
OutputArea.prototype.validate_mimebundle = function (bundle) {
/** scrub invalid outputs */
if (typeof bundle.data !== 'object') {
console.warn("mimebundle missing data", bundle);
bundle.data = {};
}
if (typeof bundle.metadata !== 'object') {
console.warn("mimebundle missing metadata", bundle);
bundle.metadata = {};
}
var data = bundle.data;
$.map(OutputArea.output_types, function(key){
if ((key.indexOf('application/') === -1 || key.indexOf('json') === -1) &&
data[key] !== undefined &&
typeof data[key] !== 'string'
) {
console.log("Invalid type for " + key, data[key]);
delete data[key];
}
});
return bundle;
};
OutputArea.prototype.append_output = function (json) {
this.expand();
if (this.clear_queued) {
this.clear_output(false);
this._needs_height_reset = true;
}
var record_output = true;
switch(json.output_type) {
case 'update_display_data':
record_output = false;
json = this.validate_mimebundle(json);
this.update_display_data(json);
return;
case 'execute_result':
json = this.validate_mimebundle(json);
this.append_execute_result(json);
break;
case 'stream':
// append_stream might have merged the output with earlier stream output
record_output = this.append_stream(json);
break;
case 'error':
this.append_error(json);
break;
case 'display_data':
// append handled below
json = this.validate_mimebundle(json);
break;
default:
console.log("unrecognized output type: " + json.output_type);
this.append_unrecognized(json);
}
if (json.output_type === 'display_data') {
var that = this;
this.append_display_data(json, this.handle_appended);
} else {
this.handle_appended();
}
if (record_output) {
this.outputs.push(json);
}
this.events.trigger('output_added.OutputArea', {
output: json,
output_area: this,
});
};
OutputArea.prototype.handle_appended = function () {
if (this._needs_height_reset) {
this.element.height('');
this._needs_height_reset = false;
}
this.element.trigger('resizeOutput', {output_area: this});
};
OutputArea.prototype.create_output_area = function () {
var oa = $("<div/>").addClass("output_area");
if (this.prompt_area) {
oa.append($('<div/>').addClass('prompt'));
}
return oa;
};
function _get_metadata_key(metadata, key, mime) {
var mime_md = metadata[mime];
// mime-specific higher priority
if (mime_md && mime_md[key] !== undefined) {
return mime_md[key];
}
// fallback on global
return metadata[key];
}
OutputArea.prototype.create_output_subarea = function(md, classes, mime) {
var subarea = $('<div/>').addClass('output_subarea').addClass(classes);
if (_get_metadata_key(md, 'isolated', mime)) {
// Create an iframe to isolate the subarea from the rest of the
// document
var iframe = $('<iframe/>').addClass('box-flex1');
iframe.css({'height':1, 'width':'100%', 'display':'block'});
iframe.attr('frameborder', 0);
iframe.attr('scrolling', 'auto');
// Once the iframe is loaded, the subarea is dynamically inserted
iframe.on('load', function() {
// Workaround needed by Firefox, to properly render svg inside
// iframes, see http://stackoverflow.com/questions/10177190/
// svg-dynamically-added-to-iframe-does-not-render-correctly
this.contentDocument.open();
// Insert the subarea into the iframe
// We must directly write the html. When using Jquery's append
// method, javascript is evaluated in the parent document and
// not in the iframe document. At this point, subarea doesn't
// contain any user content.
this.contentDocument.write(subarea.html());
this.contentDocument.close();
var body = this.contentDocument.body;
// Adjust the iframe height automatically
iframe.height(body.scrollHeight + 'px');
});
// Elements should be appended to the inner subarea and not to the
// iframe
iframe.append = function(that) {
subarea.append(that);
};
return iframe;
} else {
return subarea;
}
};
OutputArea.prototype._append_javascript_error = function (err, element) {
/**
* display a message when a javascript error occurs in display output
*/
var msg = i18n.msg._("Javascript error adding output!");
if ( element === undefined ) return;
element
.append($('<div/>').text(msg).addClass('js-error'))
.append($('<div/>').text(err.toString()).addClass('js-error'))
.append($('<div/>').text(i18n.msg._('See your browser Javascript console for more details.')).addClass('js-error'));
};
OutputArea.prototype._safe_append = function (toinsert, toreplace) {
/**
* safely append an item to the document
* this is an object created by user code,
* and may have errors, which should not be raised
* under any circumstances.
*/
try {
if (toreplace) {
toreplace.replaceWith(toinsert);
} else {
this.element.append(toinsert);
}
} catch(err) {
console.error(err);
// Create an actual output_area and output_subarea, which creates
// the prompt area and the proper indentation.
toinsert = this.create_output_area();
var subarea = $('<div/>').addClass('output_subarea');
toinsert.append(subarea);
this._append_javascript_error(err, subarea);
this.element.append(toinsert);
}
// Notify others of changes.
this.element.trigger('changed', {output_area: this});
};
OutputArea.output_prompt_classical = function(prompt_value) {
return $('<bdi>').text(i18n.msg.sprintf(i18n.msg._('Out[%d]:'),prompt_value));
};
OutputArea.output_prompt_function = OutputArea.output_prompt_classical;
OutputArea.prototype.append_execute_result = function (json) {
var n = json.execution_count || ' ';
var toinsert = this.create_output_area();
this._record_display_id(json, toinsert);
if (this.prompt_area) {
toinsert.find('div.prompt')
.addClass('output_prompt')
.empty()
.append(OutputArea.output_prompt_function(n));
}
var inserted = this.append_mime_type(json, toinsert);
if (inserted) {
inserted.addClass('output_result');
}
this._safe_append(toinsert);
// If we just output latex, typeset it.
if ((json.data[MIME_LATEX] !== undefined) ||
(json.data[MIME_HTML] !== undefined) ||
(json.data[MIME_MARKDOWN] !== undefined)) {
this.typeset();
}
};
OutputArea.prototype.append_error = function (json) {
var tb = json.traceback;
if (tb !== undefined && tb.length > 0) {
var s = '';
var len = tb.length;
for (var i=0; i<len; i++) {
s = s + tb[i] + '\n';
}
s = s + '\n';
var toinsert = this.create_output_area();
var append_text = OutputArea.append_map[MIME_TEXT];
if (append_text) {
append_text.apply(this, [s, {}, toinsert]).addClass('output_error');
}
this._safe_append(toinsert);
}
};
OutputArea.prototype.append_stream = function (json) {
var text = json.text;
if (typeof text !== 'string') {
console.error("Stream output is invalid (missing text)", json);
return false;
}
var subclass = "output_"+json.name;
if (this.outputs.length > 0){
// have at least one output to consider
var last = this.outputs[this.outputs.length-1];
if (last.output_type == 'stream' && json.name == last.name){
if (last.text.length > this.class_config.get_sync('stream_chunk_size')) {
// don't keep extending long blocks
var last_newline_idx = last.text.lastIndexOf('\n');
// if the last stream output doesn't end on a newline,
// split on last newline and take the tail with the new output
if (last_newline_idx !== -1 && last_newline_idx !== last.text.length - 1) {
// truncate last.text to its last newline,
// and take the tail with the new output.
var tail = last.text.slice(last_newline_idx + 1);
last.text = last.text.slice(0, last_newline_idx + 1);
// we changed last's content, so we have to re-render it
text = json.text = tail + json.text;
var pre = this.element.find('div.'+subclass).last().find('pre');
var html = utils.fixConsole(last.text);
html = utils.autoLinkUrls(html);
pre.html(html);
}
} else {
// latest output was in the same stream,
// so append to it instead of making a new output.
// escape ANSI & HTML specials:
last.text = utils.fixOverwrittenChars(last.text + json.text);
var pre = this.element.find('div.'+subclass).last().find('pre');
var html = utils.fixConsole(last.text);
html = utils.autoLinkUrls(html);
// The only user content injected with this HTML call is
// escaped by the fixConsole() method.
pre.html(html);
// return false signals that we merged this output with the previous one,
// and the new output shouldn't be recorded.
return false;
}
}
}
if (!text.replace("\r", "")) {
// text is nothing (empty string, \r, etc.)
// so don't append any elements, which might add undesirable space
// return true to indicate the output should be recorded.
return true;
}
// If we got here, attach a new div
var toinsert = this.create_output_area();
var append_text = OutputArea.append_map[MIME_TEXT];
if (append_text) {
append_text.apply(this, [text, {}, toinsert]).addClass("output_stream " + subclass);
}
this._safe_append(toinsert);
return true;
};
OutputArea.prototype.append_unrecognized = function (json) {
var that = this;
var toinsert = this.create_output_area();
var subarea = $('<div/>').addClass('output_subarea output_unrecognized');
toinsert.append(subarea);
subarea.append(
$("<a>")
.attr("href", "#")
.text(i18n.msg.sprintf(i18n.msg._("Unrecognized output: %s"),json.output_type))
.click(function () {
that.events.trigger('unrecognized_output.OutputArea', {output: json});
})
);
this._safe_append(toinsert);
};
OutputArea.prototype.update_display_data = function (json, handle_inserted) {
var oa = this;
var targets;
var display_id = (json.transient || {}).display_id;
if (!display_id) {
console.warn("Handling update_display with no display_id", json);
return;
}
targets = this._display_id_targets[display_id];
if (!targets) {
console.warn("No targets for display_id", display_id, json);
return;
}
// we've seen it before, update output data
targets.map(function (target) {
oa.outputs[target.index].data = json.data;
oa.outputs[target.index].metadata = json.metadata;
var toinsert = oa.create_output_area();
if (oa.append_mime_type(json, toinsert, handle_inserted)) {
oa._safe_append(toinsert, target.element);
}
target.element = toinsert;
});
// If we just output something that could contain latex, typeset it.
if ((json.data[MIME_LATEX] !== undefined) ||
(json.data[MIME_HTML] !== undefined) ||
(json.data[MIME_MARKDOWN] !== undefined)) {
this.typeset();
}
};
OutputArea.prototype._record_display_id = function (json, element) {
// record display_id of a display_data / execute_result
var display_id = (json.transient || {}).display_id;
if (!display_id) return;
// it has a display_id;
var targets = this._display_id_targets[display_id];
if (!targets) {
targets = this._display_id_targets[display_id] = [];
}
targets.push({
index: this.outputs.length,
element: element,
});
};
OutputArea.prototype.append_display_data = function (json, handle_inserted) {
var toinsert = this.create_output_area();
this._record_display_id(json, toinsert);
if (this.append_mime_type(json, toinsert, handle_inserted)) {
this._safe_append(toinsert);
// If we just output latex, typeset it.
if ((json.data[MIME_LATEX] !== undefined) ||
(json.data[MIME_HTML] !== undefined) ||
(json.data[MIME_MARKDOWN] !== undefined)) {
this.typeset();
}
}
};
OutputArea.safe_outputs = {};
OutputArea.safe_outputs[MIME_TEXT] = true;
OutputArea.safe_outputs[MIME_LATEX] = true;
OutputArea.safe_outputs[MIME_PNG] = true;
OutputArea.safe_outputs[MIME_JPEG] = true;
OutputArea.safe_outputs[MIME_GIF] = true;
OutputArea.prototype.append_mime_type = function (json, element, handle_inserted) {
for (var i=0; i < OutputArea.display_order.length; i++) {
var type = OutputArea.display_order[i];
var append = OutputArea.append_map[type];
if ((json.data[type] !== undefined) && append) {
var value = json.data[type];
if (!this.trusted && !OutputArea.safe_outputs[type]) {
// not trusted, sanitize HTML
if (type===MIME_HTML || type==='text/svg') {
value = security.sanitize_html(value);
} else {
// don't display if we don't know how to sanitize it
console.log("Ignoring untrusted " + type + " output.");
continue;
}
}
var md = json.metadata || {};
var toinsert = append.apply(this, [value, md, element, handle_inserted]);
// Since only the png and jpeg mime types call the inserted
// callback, if the mime type is something other we must call the
// inserted callback only when the element is actually inserted
// into the DOM. Use a timeout of 0 to do this.
if ([MIME_PNG, MIME_JPEG, MIME_GIF].indexOf(type) < 0 && handle_inserted !== undefined) {
setTimeout(handle_inserted, 0);
}
this.events.trigger('output_appended.OutputArea', [type, value, md, toinsert]);
return toinsert;
}
}
return null;
};
var append_html = function (html, md, element) {
var type = MIME_HTML;
var toinsert = this.create_output_subarea(md, "output_html rendered_html", type);
this.keyboard_manager.register_events(toinsert);
toinsert.append(html);
dblclick_to_reset_size(toinsert.find('img'));
element.append(toinsert);
return toinsert;
};
var append_markdown = function(markdown, md, element) {
var type = MIME_MARKDOWN;
var toinsert = this.create_output_subarea(md, "output_markdown rendered_html", type);
var text_and_math = mathjaxutils.remove_math(markdown);
var text = text_and_math[0];
var math = text_and_math[1];
// Prevent marked from returning inline styles for table cells
var renderer = new marked.Renderer();
renderer.tablecell = function (content, flags) {
var type = flags.header ? 'th' : 'td';
var start_tag = '<' + type + '>';
var end_tag = '</' + type + '>\n';
return start_tag + content + end_tag;
};
marked(text, { renderer: renderer }, function (err, html) {
html = mathjaxutils.replace_math(html, math);
toinsert.append(html);
});
dblclick_to_reset_size(toinsert.find('img'));
element.append(toinsert);
return toinsert;
};
var append_javascript = function (js, md, element) {
/**
* We just eval the JS code, element appears in the local scope.
*/
var type = MIME_JAVASCRIPT;
var toinsert = this.create_output_subarea(md, "output_javascript rendered_html", type);
this.keyboard_manager.register_events(toinsert);
element.append(toinsert);
// Fix for ipython/issues/5293, make sure `element` is the area which
// output can be inserted into at the time of JS execution.
element = toinsert;
try {
eval(js);
} catch(err) {
console.log(err);
this._append_javascript_error(err, toinsert);
}
return toinsert;
};
var append_text = function (data, md, element) {
var type = MIME_TEXT;
var toinsert = this.create_output_subarea(md, "output_text", type);
data = utils.fixOverwrittenChars(data);
// escape ANSI & HTML specials in plaintext:
data = utils.fixConsole(data);
data = utils.autoLinkUrls(data);
// The only user content injected with this HTML call is
// escaped by the fixConsole() method.
toinsert.append($("<pre/>").html(data));
element.append(toinsert);
return toinsert;
};
var append_svg = function (svg_html, md, element) {
var type = MIME_SVG;
var toinsert = this.create_output_subarea(md, "output_svg", type);
// Get the svg element from within the HTML.
// One svg is supposed, but could embed other nested svgs
var svg = $($('<div \>').html(svg_html).find('svg')[0]);
var svg_area = $('<div />');
var width = svg.attr('width');
var height = svg.attr('height');
svg
.width('100%')
.height('100%');
svg_area
.width(width)
.height(height);
svg_area.append(svg);
toinsert.append(svg_area);
element.append(toinsert);
return toinsert;
};
function dblclick_to_reset_size (img) {
/**
* Double-click on an image toggles confinement to notebook width
*
* img: jQuery element
*/
img.dblclick(function () {
// dblclick toggles *raw* size, disabling max-width confinement.
if (img.hasClass('unconfined')) {
img.removeClass('unconfined');
} else {
img.addClass('unconfined');
}
});
}
var set_width_height = function (img, md, mime) {
/**
* set width and height of an img element from metadata
*/
var height = _get_metadata_key(md, 'height', mime);
if (height !== undefined) img.attr('height', height);
var width = _get_metadata_key(md, 'width', mime);
if (width !== undefined) img.attr('width', width);
if (_get_metadata_key(md, 'unconfined', mime)) {
img.addClass('unconfined');
}
};
var append_png = function (png, md, element, handle_inserted) {
var type = MIME_PNG;
var toinsert = this.create_output_subarea(md, "output_png", type);
var img = $("<img/>");
if (handle_inserted !== undefined) {
img.on('load', function(){
handle_inserted(img);
});
}
img[0].src = 'data:image/png;base64,'+ png;
set_width_height(img, md, type);
dblclick_to_reset_size(img);
toinsert.append(img);
element.append(toinsert);
return toinsert;
};
var append_jpeg = function (jpeg, md, element, handle_inserted) {
var type = MIME_JPEG;
var toinsert = this.create_output_subarea(md, "output_jpeg", type);
var img = $("<img/>");
if (handle_inserted !== undefined) {
img.on('load', function(){
handle_inserted(img);
});
}
img[0].src = 'data:image/jpeg;base64,'+ jpeg;
set_width_height(img, md, type);
dblclick_to_reset_size(img);
toinsert.append(img);
element.append(toinsert);
return toinsert;
};
var append_gif = function (gif, md, element, handle_inserted) {
var type = MIME_GIF;
var toinsert = this.create_output_subarea(md, "output_gif", type);
var img = $("<img/>");
if (handle_inserted !== undefined) {
img.on('load', function(){
handle_inserted(img);
});
}
img[0].src = 'data:image/gif;base64,'+ gif;
set_width_height(img, md, type);
dblclick_to_reset_size(img);
toinsert.append(img);
element.append(toinsert);
return toinsert;
};
var append_pdf = function (pdf, md, element) {
var type = MIME_PDF;
var toinsert = this.create_output_subarea(md, "output_pdf", type);
var a = $('<a/>').attr('href', 'data:application/pdf;base64,'+pdf);
a.attr('target', '_blank');
a.text('View PDF');
toinsert.append(a);
element.append(toinsert);
return toinsert;
};
var append_latex = function (latex, md, element) {
/**
* This method cannot do the typesetting because the latex first has to
* be on the page.
*/
var type = MIME_LATEX;
var toinsert = this.create_output_subarea(md, "output_latex", type);
toinsert.text(latex);
element.append(toinsert);
return toinsert;
};
OutputArea.prototype.append_raw_input = function (msg) {
var that = this;
this.expand();
var content = msg.content;
var area = this.create_output_area();
// disable any other raw_inputs, if they are left around
$("div.output_subarea.raw_input_container").remove();
var input_type = content.password ? 'password' : 'text';
area.append(
$("<div/>")
.addClass("box-flex1 output_subarea raw_input_container")
.append(
$("<pre/>")
.addClass("raw_input_prompt")
.html(utils.fixConsole(content.prompt))
.append(
$("<input/>")
.addClass("raw_input")
.attr('type', input_type)
.attr("size", 47)
.keydown(function (event, ui) {
// make sure we submit on enter,
// and don't re-execute the *cell* on shift-enter
if (event.which === keyboard.keycodes.enter) {
that._submit_raw_input();
return false;
}
})
)
)
);
this.element.append(area);
var raw_input = area.find('input.raw_input');
// Register events that enable/disable the keyboard manager while raw
// input is focused.
this.keyboard_manager.register_events(raw_input);
// Note, the following line used to read raw_input.focus().focus().
// This seemed to be needed otherwise only the cell would be focused.
// But with the modal UI, this seems to work fine with one call to focus().
raw_input.focus();
};
OutputArea.prototype._submit_raw_input = function (evt) {
var container = this.element.find("div.raw_input_container");
var theprompt = container.find("pre.raw_input_prompt");
var theinput = container.find("input.raw_input");
var value = theinput.val();
var echo = value;
// don't echo if it's a password
if (theinput.attr('type') == 'password') {
echo = '········';
}
var content = {
output_type : 'stream',
name : 'stdout',
text : theprompt.text() + echo + '\n'
};
// remove form container
container.parent().remove();
// replace with plaintext version in stdout
this.append_output(content);
this.events.trigger('send_input_reply.Kernel', value);
};
OutputArea.prototype.handle_clear_output = function (msg) {
/**
* msg spec v4 had stdout, stderr, display keys
* v4.1 replaced these with just wait
* The default behavior is the same (stdout=stderr=display=True, wait=False),
* so v4 messages will still be properly handled,
* except for the rarely used clearing less than all output.
*/
this.clear_output(msg.content.wait || false);
};
OutputArea.prototype.clear_output = function(wait, ignore_clear_queue) {
if (wait) {
// If a clear is queued, clear before adding another to the queue.
if (this.clear_queued) {
this.clear_output(false);
}
this.clear_queued = true;
} else {
// Fix the output div's height if the clear_output is waiting for
// new output (it is being used in an animation).
if (!ignore_clear_queue && this.clear_queued) {
// this.element.height() rounds the height, so we get the exact value
var height = this.element[0].getBoundingClientRect().height;
this.element.height(height);
this.clear_queued = false;
}
// Clear all
// Remove load event handlers from img tags because we don't want
// them to fire if the image is never added to the page.
this.element.find('img').off('load');
this.element.trigger('clearing', {output_area: this});
this.element.html("");
// Notify others of changes.
this.element.trigger('changed', {output_area: this});
this.element.trigger('cleared', {output_area: this});
this.outputs = [];
this._display_id_targets = {};
this.trusted = true;
this.unscroll_area();
this.expand();
return;
}
};
// JSON serialization
OutputArea.prototype.fromJSON = function (outputs, metadata) {
var len = outputs.length;
metadata = metadata || {};
for (var i=0; i<len; i++) {
this.append_output(outputs[i]);
}
if (metadata.collapsed !== undefined) {
if (metadata.collapsed) {
this.collapse();
} else {
this.expand();
}
}
if (metadata.scrolled !== undefined) {
this.scroll_state = metadata.scrolled;
if (metadata.scrolled) {
this.scroll_if_long();
} else {
this.unscroll_area();
}
}
};
/**
* Return for-saving version of outputs.
* Excludes transient values.
*/
OutputArea.prototype.toJSON = function () {
return this.outputs.map(function (out) {
var out2 = {};
Object.keys(out).map(function (key) {
if (key != 'transient') {
out2[key] = out[key];
}
});
return out2;
});
};
/**
* Class properties
**/
/**
* Threshold to trigger autoscroll when the OutputArea is resized,
* typically when new outputs are added.
*
* Behavior is undefined if autoscroll is lower than minimum_scroll_threshold,
* unless it is < 0, in which case autoscroll will never be triggered
*
* @property auto_scroll_threshold
* @type Number
* @default 100
*
**/
OutputArea.auto_scroll_threshold = 100;
/**
* Lower limit (in lines) for OutputArea to be made scrollable. OutputAreas
* shorter than this are never scrolled.
*
* @property minimum_scroll_threshold
* @type Number
* @default 20
*
**/
OutputArea.minimum_scroll_threshold = 20;
OutputArea.display_order = [
MIME_JAVASCRIPT,
MIME_HTML,
MIME_MARKDOWN,
MIME_LATEX,
MIME_SVG,
MIME_PNG,
MIME_JPEG,
MIME_GIF,
MIME_PDF,
MIME_TEXT
];
OutputArea.append_map = {};
OutputArea.append_map[MIME_TEXT] = append_text;
OutputArea.append_map[MIME_HTML] = append_html;
OutputArea.append_map[MIME_MARKDOWN] = append_markdown;
OutputArea.append_map[MIME_SVG] = append_svg;
OutputArea.append_map[MIME_PNG] = append_png;
OutputArea.append_map[MIME_JPEG] = append_jpeg;
OutputArea.append_map[MIME_GIF] = append_gif;
OutputArea.append_map[MIME_LATEX] = append_latex;
OutputArea.append_map[MIME_JAVASCRIPT] = append_javascript;
OutputArea.append_map[MIME_PDF] = append_pdf;
OutputArea.prototype.mime_types = function () {
return OutputArea.display_order;
};
OutputArea.prototype.register_mime_type = function (mimetype, append, options) {
if (mimetype && typeof(append) === 'function') {
OutputArea.output_types.push(mimetype);
if (options.safe) OutputArea.safe_outputs[mimetype] = true;
OutputArea.display_order.splice(options.index || 0, 0, mimetype);
OutputArea.append_map[mimetype] = append;
}
};
return {'OutputArea': OutputArea};
});
|